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WO2020153699A1 - Indoor device of air conditioner - Google Patents

Indoor device of air conditioner Download PDF

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Publication number
WO2020153699A1
WO2020153699A1 PCT/KR2020/000987 KR2020000987W WO2020153699A1 WO 2020153699 A1 WO2020153699 A1 WO 2020153699A1 KR 2020000987 W KR2020000987 W KR 2020000987W WO 2020153699 A1 WO2020153699 A1 WO 2020153699A1
Authority
WO
WIPO (PCT)
Prior art keywords
space
dust sensor
case
air
air conditioner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/000987
Other languages
French (fr)
Korean (ko)
Inventor
오지혜
서범수
정여지
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of WO2020153699A1 publication Critical patent/WO2020153699A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content

Definitions

  • the present invention relates to an indoor unit of an air conditioner, and more particularly, to a dust sensor mounted on the indoor unit.
  • the dust sensor is a sensor that measures the concentration of dust in the air.
  • the dust sensor heats the air inside the dust sensor with a heater disposed inside the dust sensor, and discharges the heated air to the dust sensor outlet.
  • the dust sensor may measure the concentration of dust contained in the air flowing into the dust sensor inlet as the internal air is discharged through the dust sensor outlet by the heater.
  • the reliability of the measurement of the dust concentration may vary depending on the speed of the incoming air.
  • the air flow inside the dust sensor is formed only through the process of heating the internal air with a heater disposed inside the dust sensor and discharging it to the discharge port. Since it is formed below a certain level, the reliability of the measurement for the dust concentration can be increased.
  • the dust sensor is mounted on an indoor unit disposed in the room to form air flow in the indoor space, and can measure the concentration of dust in the indoor space.
  • the indoor unit of the air conditioner includes a case including an upper surface installed on the ceiling surface of the indoor space and a circumferential surface extending downward from the upper surface and exposed to the indoor space; A lower panel disposed on the lower surface of the case, forming a suction port, and forming a discharge port between the case; A blowing module disposed inside the case and flowing air inside the case from the suction port to the discharge port; A heat exchanger for exchanging air flowing into the outlet by the blower module with a refrigerant; And a dust sensor module disposed on one side of the circumferential surface of the case to detect the dust concentration in the indoor space, wherein the dust sensor module controls the dust concentration in the air flowing into the dust sensor suction port and discharged to the dust sensor discharge port.
  • first opening portion communicating the outer space of the case and the first space, and a second opening portion communicating the outer space of the case with the second space are formed, and the second opening portion , It is disposed on the upper side of the first opening, the first space and the second space can communicate with the outside, respectively.
  • the housing includes a partition wall in which the dust sensor mounting portion and the first space are partitioned, and a suction communication hole and a discharge communication hole are formed in a portion where the dust sensor suction port and the dust sensor discharge port are formed.
  • the air conditioner according to the present invention is a ceiling type indoor unit in which the case is installed on the ceiling surface of the indoor space, and has a structure in which the circumferential surface of the case is exposed.
  • a dust sensor module including a dust sensor is mounted on one side of the circumferential surface where the air flow is relatively small compared to the lower panel, and the dust concentration measured by the dust sensor. It has the advantage of increasing the reliability.
  • the first space in which the dust sensor measures the dust concentration forms a structure in which external air flows in through the second space, so that the external air flows through the second space into the first space, so the dust sensor measures dust. Since the flow velocity of the air in the said space is further reduced, the reliability of the dust concentration measurement has an advantage.
  • FIG. 2 is a top perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.
  • FIG. 3 is a side sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.
  • FIG. 5 is an external perspective view of a dust sensor module according to an embodiment of the present invention.
  • the case 10 includes an inner case 14 forming a space in which the blowing module 21 and the heat exchanger 26 are disposed, and an outer case disposed outside the inner case 14 to form an outer circumferential surface 10b. (12).
  • the inner case 14 and the outer case 12 may be connected in one configuration, or may be formed in a combination of multiple configurations.
  • the inner case 14 and the outer case 12 are classified based on the arrangement, and the fastening relationship between components is not classified.
  • the inner case 14 can guide the air flowing by the blowing fan 22.
  • the inner case 14 forms a space in which the blowing fan 22, the fan motor 24, and the heat exchanger 26 are disposed.
  • the outer case 12 is disposed outside the inner case 14.
  • the outer case 12 may include a circumferential surface 10b disposed in an outer radial direction of the indoor unit.
  • the outer case 12 may be formed in a direction in which the width of the cross section increases from the upper side to the lower side.
  • the outer case 12 includes an outer case-top 12b1 in which the width of the cross section increases from the upper side to the lower side, and an outer case-lower portion 12b2 in which the width of the cross-section is maintained or decreased as it goes from the upper side to the lower side.
  • the outer case 12 according to the present embodiment is a structure in which the outer case 12 is exposed to the outside when the indoor unit is mounted in an indoor space. Accordingly, when the air in the indoor space flows due to the operation of the indoor unit, air may flow from the upper side to the lower side along the circumferential surface of the outer case 12 in the circumference of the outer case 12.
  • the second opening 58 for the second space S2 to communicate with the outside of the outer case 12 may be formed above the first space S1. That is, air flowing from the upper side to the lower side along the outside of the outer case 12 may be introduced into the second space S2 through the second opening 58 communicating with the second space S2.
  • the intake panel 16 may be disposed under the opened lower side of the case 10. In the intake panel 16, a plurality of intake ports 16a through which air is introduced into the indoor unit may be formed. A filter (not shown) may be disposed on the intake panel 16 to filter out foreign substances in the intake air.
  • a discharge port 18 may be formed between the suction port panel 16 and the case 10.
  • the inner case 14 according to the present embodiment has a cylindrical shape, forms a circular opening hole downward, and the suction port panel 16 has a disc shape, and the discharge port 18 can have a ring shape. .
  • the blowing module 21 is a blowing fan 22 for flowing air by rotation, a fan motor 24 for rotating the blowing fan 22, and a bell mouse 25 for guiding air sucked by the blowing fan 22 It includes.
  • the fan motor 24 is mounted on the upper surface 10a of the case 10 and rotates the blowing fan 22.
  • the bell mouse 25 may be disposed between the blower fan 22 and the intake panel 16.
  • the heat exchanger 26 is disposed along the periphery of the blower fan 22.
  • the heat exchanger 26 according to the present embodiment may be arranged in a cylindrical shape.
  • a drain pan 28 for temporarily storing and guiding condensate may be disposed under the heat exchanger 26.
  • the drain pan 28 may be mounted on the heat exchanger 26 and may be inclined to guide condensate in one direction.
  • the dust sensor module 50 may be disposed on one side of the outer case 12.
  • the dust sensor module 50 is disposed inside the dust sensor 80 and the circumferential surface 10b to measure the dust concentration in the air introduced into the dust sensor suction port 82 and discharge it to the dust sensor discharge port 84.
  • a first space (S1) forming a certain space in the direction in which the dust sensor intake (82) and the dust sensor discharge port (84) face, inside a circumferential surface (10b), a certain space around the first space (S1) It is formed, and includes a second space (S2) that communicates with the outside of the case 10 and the first space (S1), respectively.
  • the dust sensor 80 is disposed in the inner space of the outer case 12. On one side, the dust sensor 80 forms a dust sensor suction port 82 and a dust sensor discharge port 84. The dust sensor 80 may detect the concentration of dust contained in the air flowing through the dust sensor intake 82.
  • the dust sensor 80 may measure the concentration of dust in the air moving upward by heating the air sucked through the dust sensor intake 82. Therefore, the dust sensor 80 used in the present embodiment may be arranged vertically, the dust sensor suction port 16a is formed on the lower side, and the dust sensor discharge port 18 may be formed on the upper side. Accordingly, the partition wall 62 formed on one side of the dust sensor 80, which will be described below, may also have a vertically formed structure.
  • the dust sensor module 50 is disposed on the circumferential surface 10b, the dust sensor 80 is mounted, the housing 52 forming the first space S1, and the first space formed in the housing 52 It includes a housing cover 64 covering one side of (S1).
  • the housing 52 may be disposed on one side of the outer case 12.
  • the housing 52 may be integrally formed with the outer case 12 or may be formed in a separate configuration from the outer case 12.
  • the housing 52 according to the present embodiment is formed in a separate configuration from the outer case 12 and may have a structure mounted on one side of the outer case 12.
  • a housing cover 64 in which a plurality of communication holes 70, 72, and 74 are formed may be disposed.
  • the first opening 56 and the second opening 58 may communicate with different spaces.
  • the first opening 56 may communicate with the first space S1.
  • the second opening 58 may be in communication with the second space S2.
  • the first opening 56 and the second opening 58 are arranged in the vertical direction from the outer surface 54 forming an inclined surface that is further away from the outer direction toward the lower side. Therefore, the upper end of the dust sensor mounting portion 60 which is vertically arranged can partition the first opening portion 56 and the second opening portion 58.
  • the upper end of the partition wall 62 vertically arranged may partition the first opening 56 and the second opening 58.
  • the first opening 56 is formed in the outer direction of the first space S1.
  • the first opening 56 may have a length corresponding to the height of the dust sensor mounting portion 60 to which the dust sensor 80 is mounted.
  • the second opening 58 may have a grill structure in which a plurality of opening holes 58a are formed in the vertical direction.
  • the second opening 58 communicates the upper space of the dust sensor mounting portion 60 and the outer space of the outer case 12.
  • the second opening 58 communicates the second space S2 and the outer space of the outer case 12.
  • the dust sensor mounting unit 60 forms a partition 62 between the space (?) where the dust sensor 80 is mounted and the first space S1.
  • the upper end of the dust sensor mounting portion 60 is disposed between the first opening portion 56 and the second opening portion 58 of the housing 52 so that the first opening portion 56 and the second opening portion 58 communicate with each other. Space is divided.
  • the upper end of the partition wall 62 is disposed between the first opening 56 and the second opening 58 of the housing 52 to provide a space in which the first opening 56 and the second opening 58 communicate. Compartment.
  • the partition wall 62 may have a vertical shape in consideration of the arrangement of the dust sensor 80. In the partition wall 62, a suction communication hole 62a and a discharge communication hole 62b for communicating the dust sensor suction port 82 and the dust sensor discharge port 84 with the first space S1 may be formed.
  • the suction communication hole 62a and the discharge communication hole 62b may be formed at positions corresponding to the dust sensor suction port 82 and the dust sensor discharge port 84.
  • the housing 52 is disposed between the dust sensor mounting portion 60 and the first opening portion 56, and includes a side grill 78 for communicating the first space S1 and the second space S2.
  • the side grills 78 may be formed on both side surfaces of the first space S1.
  • the side grill 78 may be formed with a plurality of grill holes 78a so that the air in the first space S1 and the second space S2 can communicate.
  • the upper end of the side grill 78 may have a triangular shape, starting from the upper end of the partition wall 62 and increasing in area toward the lower side.
  • the side grill 78 may have a form of a right triangle in contact with the partition wall 62 vertically disposed at one side and the first opening 56 or the housing cover 64 disposed obliquely at the other side.
  • a housing cover 64 in which at least one communication hole 70 or 72 is formed may be disposed in an outer direction of the first space S1 according to the present embodiment.
  • the housing cover 64 may be formed with a plurality of communication holes 70 and 72 and cover the first opening 56 and/or the second opening 58.
  • the housing cover 64 may be combined with the housing 52 in such a way that it is fitted in a portion where the first opening 56 and the second opening 58 are formed on the outer surface 54 of the housing 52.
  • the housing cover 64 may be divided into a lower housing cover 68 covering the first space S1 and an upper housing cover 66 covering the second space S2.
  • the second communication hole 74 may have a shape and arrangement corresponding to a plurality of opening holes 58a formed in the second opening 58.
  • the first space S1 forms a space through which the dust sensor 80 sucks and discharges air.
  • the first space S1 may be formed inside the housing 52 in which the second opening 58 is formed.
  • a partition wall 62 of the dust sensor mounting portion 60 is disposed inside, and a housing cover 64 covering the first opening portion 56 is disposed outside.
  • the first space S1 may be provided with side grills 78 forming grill holes 78a to communicate with the second space S2 on both sides.
  • the heated air discharged from the dust sensor 80 is discharged above the first space S1. Therefore, the air discharged from the dust sensor 80 may be discharged to the outside through the first upper communication hole 70 formed toward the upper side of the first space S1.
  • Air in the second space S2 may be introduced into the lower portion of the first space S1 through the plurality of grill holes 78a formed in the side grill 78.
  • External air may be introduced into the lower space of the first space S1, or the air of the first space S1 may flow outward through the first lower communication hole 72 formed in the lower housing cover 68.
  • the second space S2 may be formed in a space between the outer case 12 and the inner case 14.
  • the second space S2 may be partitioned from the first space S1.
  • the second space S2 may be formed at a position in which the dust sensor 80 is disposed, except for a direction in which the dust sensor 80 faces the first space S1.
  • the second space S2 may communicate with the first space S1 through the side grill 78 of the housing 52.
  • the air in the second space S2 may flow to the first space S1 through the grill hole 78a formed in the side grill 78.
  • the air flowing along the outer side of the outer case 12 may flow into the expanded space of the second space S2 while the flow velocity may be lowered. Accordingly, air having a lower flow rate in the second space S2 may flow to the first space S1.
  • the second opening 58 in the second space S2 and the grill hole 78a formed in the side grill 78 are arranged in a vertical direction, the flow velocity of air flowing into the first space S1 is It may degrade.
  • the indoor unit of the air conditioner according to the present embodiment, a strong air flow is formed around the inlet 16a and the outlet 18 by rotation of the blowing fan 22.
  • air flow is also formed in the circumferential surface of the exposed case 10.
  • a relatively small flow rate may be formed compared to the air flow formed around the inlet 16a and the outlet 18.
  • the flow of air formed outside the outer case 12 may form an air flow flowing in a downward direction by riding on the outer surface of the outer case 12.
  • the air flowing downward on the inclined surface of the outer case 12 through the second opening 58a and the second communication hole 74 formed on the upper part of the dust sensor module 50, the second It can flow into the space (S2).
  • the inside of the second space S2 is a low-pressure space where no air flow is formed, and air flowing downward on the inclined surface of the outer case 12 may be introduced.
  • the flow rate may be relatively reduced.
  • the first upper communication hole 70 In the upper portion of the first space (S1), since the warm air discharged from the dust sensor 80 is discharged to the outside of the outer case 12 through the first upper communication hole 70, the first upper communication hole 70 The air in the second space S2 flows in through the grill hole 78a formed in the side grill 78, which is disposed downward. Since the first space S1 has a shape in which the area of the cross section increases from the upper side to the lower side, the grill hole 78a formed in the side grill 78 also has a hole having a larger size toward the lower side.
  • air in the first space S1 may be discharged to the outside, or external air may be introduced into the first space S1.
  • the air flowing into the first space S1 through the grill hole 78a in the second space S2 and the outer case 12 through the first upper communication hole 70 in the first space S1 Depending on the amount of air flowing outward, air flowing along the outer surface of the outer case 12 flows into the first space S1 through the second communication hole 74 or the air in the first space S1 It may be discharged to the outside through the second communication hole (74). However, even though air flowing along the outer surface of the outer case 12 flows into the first space S1 through the second communication hole 74, the air introduced into the first space S1 is the second space. Since it is mixed with the air introduced through the grill hole 78a in (S2), the flow rate of the air flowing into the dust sensor intake 82 is not rapidly increased.
  • the dust sensor module 50 is disposed on one side of the circumferential surface of the ceiling-type indoor unit where the circumferential surface is exposed, and the dust sensor 80 measures a first space for measuring the concentration of dust ( Since the state in which the air flow rate in S1) is lowered is maintained, reliable dust concentration can be measured.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to an indoor device of an air conditioner. An indoor device of an air conditioner according to the present invention comprises: a case comprising an upper surface which attaches to the ceiling surface of an indoor space, and a circumferential surface which downwardly extends from the upper surface and is exposed to the indoor space; a lower panel which is arranged on the lower surface of the case, and provided with suction inlets and a discharge outlet between the case and the lower panel; a blower module which is arranged inside the case and causes the air inside the case to flow from the suction inlet to the discharge outlet; a heat exchanger for heat-exchanging, with a refrigerant, the air flowing to the discharge outlet by means of the blower module; and a dust sensor module which is arranged on one side of the circumferential surface of the case and detects the dust concentration of the indoor space. The dust sensor module comprises: a dust sensor for measuring the dust concentration of the air which flows in via dust sensor suction inlets and discharged via a dust sensor discharge outlet; a first space which is arranged in the interior of the circumferential surface and forms a certain space in the direction of the dust sensor suction inlet and the dust sensor discharge outlet; and a second space which forms, in the interior of the circumferential surface, a certain space divided from the first space, and which is in communication with the space outside the case, at one side of the second space, and is in communication with the first space, at the other side distinguished from the one side.

Description

공기조화기의 실내기Indoor unit of air conditioner

본 발명은 공기조화기의 실내기에 관한 것으로, 보다 상세하게는 실내기에 장착되는 먼지센서에 관한 것이다.The present invention relates to an indoor unit of an air conditioner, and more particularly, to a dust sensor mounted on the indoor unit.

먼지센서는 공기 중의 먼지의 농도를 측정하는 센서이다. 먼지센서는, 먼지센서 내부에 배치되는 히터로 먼지센서 내부의 공기를 가열하고, 가열된 공기를 먼지센서 토출구로 토출한다. 먼지센서는, 히터에 의해 내부공기가 먼지센서 토출구로 배출됨에 따라, 먼지센서 흡입구로 유입되는 공기에 포함된 먼지의 농도를 측정할 수 있다. The dust sensor is a sensor that measures the concentration of dust in the air. The dust sensor heats the air inside the dust sensor with a heater disposed inside the dust sensor, and discharges the heated air to the dust sensor outlet. The dust sensor may measure the concentration of dust contained in the air flowing into the dust sensor inlet as the internal air is discharged through the dust sensor outlet by the heater.

먼지센서는, 먼지센서 내부로 유입되는 공기 중의 먼지농도를 측정하므로, 유입되는 공기의 속도에 따라 먼지 농도에 대한 측정의 신뢰도가 달라질 수 있다. Since the dust sensor measures the concentration of dust in the air flowing into the dust sensor, the reliability of the measurement of the dust concentration may vary depending on the speed of the incoming air.

즉, 먼지센서 주위에서 공기 유동이 활발하지 않은 경우, 먼지센서 내부의 공기유동은, 먼지센서 내부에 배치되는 히터로 내부공기를 가열하여 토출구로 토출하는 과정을 통해서만 형성되므로, 공기의 유동속도가 일정수준 이하로 형성되므로, 먼지 농도에 대한 측정의 신뢰도가 높아질 수 있다. That is, when the air flow around the dust sensor is not active, the air flow inside the dust sensor is formed only through the process of heating the internal air with a heater disposed inside the dust sensor and discharging it to the discharge port. Since it is formed below a certain level, the reliability of the measurement for the dust concentration can be increased.

반면에, 먼지센서 주위에서 공기 유동이 활발한 경우, 먼지센서 내부로 유입되는 공기의 유속이 빠르게 형성되어, 먼지 농도에 대한 측정의 신뢰도가 낮아지게 된다. On the other hand, when the air flow is active around the dust sensor, the flow velocity of the air flowing into the dust sensor is rapidly formed, thereby reducing the reliability of measurement of the dust concentration.

먼지센서는, 실내공간의 공기유동을 형성하도록, 실내에 배치되는 실내기에 장착되어, 실내공간의 먼지의 농도를 측정할 수 있다. 실내기에 장착되는 먼지센서는, 상기의 조건을 고려하여, 공기의 유속이 적게 형성되는 부분에서 장착되는 것이 먼지센서의 신뢰도 측면에서 유리하다. The dust sensor is mounted on an indoor unit disposed in the room to form air flow in the indoor space, and can measure the concentration of dust in the indoor space. In consideration of the above conditions, it is advantageous in terms of reliability of the dust sensor that the dust sensor mounted on the indoor unit is mounted at a portion where the air flow rate is low.

일반적인 천장형 실내기는, 케이스가 천장면의 내부로 매립되고, 흡입구와 토출구가 형성되는 하부패널만이 실내공간으로 노출되므로, 상기의 하부패널의 영역에서 먼지센서가 장착될 수 있다. 다만, 하부패널에는, 전체영역에서, 토출구와 흡입구에 의해 공기유속이 활발하게 일어나므로, 장착된 먼지센서의 신뢰도가 낮아질 수 있다. In the general ceiling-type indoor unit, since the case is embedded into the interior of the ceiling surface, and only the lower panel where the suction port and the discharge port are formed is exposed to the indoor space, a dust sensor may be mounted in the area of the lower panel. However, since the air flow rate is actively generated by the discharge port and the suction port in the entire area of the lower panel, reliability of the mounted dust sensor may be lowered.

본 발명이 해결하고자 하는 과제는 천장형 실내기에 장착되는 먼지센서가 높은 신뢰도로 실내공간의 공기에 포함된 먼지의 농도를 측정하는 공기조화기의 실내기를 제공하는 것이다.The problem to be solved by the present invention is to provide an indoor unit of an air conditioner that measures the concentration of dust contained in the air of an indoor space with high reliability by a dust sensor mounted on a ceiling type indoor unit.

본 발명의 과제들은 이상에서 언급한 과제들로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

상기 과제를 달성하기 위하여, 본 발명에 따른 공기조화기의 실내기는, 실내공간의 천장면에 설치되는 상부면과, 상기 상부면에서 하측으로 연장되어 실내공간으로 노출되는 둘레면을 포함하는 케이스; 상기 케이스의 하부면에 배치되고, 흡입구를 형성하며, 상기 케이스와 사이에서 토출구를 형성하는 하부패널; 상기 케이스 내측에 배치되고, 상기 케이스 내부의 공기를 상기 흡입구에서 상기 토출구로 유동시키는 송풍모듈; 상기 송풍모듈에 의해 상기 토출구로 유동하는 공기를 냉매와 열교환하는 열교환기; 및 상기 케이스의 둘레면의 일측에 배치되어, 실내공간의 먼지농도를 감지하는 먼지센서모듈을 포함하고, 상기 먼지센서모듈은, 먼지센서 흡입구로 유입되어 먼지센서 토출구로 배출되는 공기 중의 먼지농도를 측정하는 먼지센서; 상기 둘레면의 내측에 배치되고, 상기 먼지센서 흡입구 및 상기 먼지센서 토출구가 향하는 방향에서 일정공간을 형성하는 제1공간; 및 상기 둘레면 내측에서, 상기 제1공간과 구획되는 일정공간을 형성하며, 일측에서 상기 케이스의 외부공간과 연통되고, 일측과 구별되는 타측에서 상기 제1공간과 연통되는 제2공간을 포함하여, 케이스 외측을 따라 유동하는 공기가 제2공간을 통해 제1공간으로 유입될 수 있다. In order to achieve the above object, the indoor unit of the air conditioner according to the present invention includes a case including an upper surface installed on the ceiling surface of the indoor space and a circumferential surface extending downward from the upper surface and exposed to the indoor space; A lower panel disposed on the lower surface of the case, forming a suction port, and forming a discharge port between the case; A blowing module disposed inside the case and flowing air inside the case from the suction port to the discharge port; A heat exchanger for exchanging air flowing into the outlet by the blower module with a refrigerant; And a dust sensor module disposed on one side of the circumferential surface of the case to detect the dust concentration in the indoor space, wherein the dust sensor module controls the dust concentration in the air flowing into the dust sensor suction port and discharged to the dust sensor discharge port. A dust sensor to measure; A first space disposed inside the circumferential surface and forming a predetermined space in a direction in which the dust sensor suction port and the dust sensor discharge port face; And a second space inside the circumferential surface, forming a predetermined space partitioned from the first space, communicating with the outer space of the case at one side, and communicating with the first space at the other side distinct from one side. , Air flowing along the outside of the case may be introduced into the first space through the second space.

상기 케이스는, 상기 송풍모듈과 상기 열교환기가 배치되는 공간을 형성하는 내부케이스와, 상기 내부케이스 외측에 배치되어 상기 둘레면을 형성하는 외부케이스를 포함하고, 상기 먼지센서모듈은, 상기 외부케이스의 일측에 배치되어, 실내공기의 먼지농도를 측정할 수 있다. The case includes an inner case forming a space in which the blower module and the heat exchanger are disposed, and an outer case disposed outside the inner case to form the circumferential surface, and the dust sensor module comprises: Arranged on one side, it is possible to measure the dust concentration of the indoor air.

상기 제2공간은, 상기 내부케이스와 상기 외부케이스 사이에서 형성되어, 외부공기가 외부케이스 내측의 제2공간으로 유입되어, 제1공간으로 유동할 수 있다. The second space is formed between the inner case and the outer case, and external air may flow into the second space inside the outer case and flow into the first space.

상기 외부케이스는, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 형상을 가지고, 상기 제2공간은, 상기 제1공간의 상측에서 상기 외부케이스의 외부공간과 연통되어, 외부케이스를 따라 유동하는 공기가 제2공간으로 유입될 수 있다. The outer case has a shape in which the width of the cross section increases from the upper side to the lower side, and the second space communicates with the outer space of the outer case from the upper side of the first space, and flows along the outer case. May be introduced into the second space.

상기 먼지센서모듈은, 상기 케이스의 둘레면 일측에서 외측면을 형성하고, 내측으로 먼지센서가 장착되는 먼지센서장착부를 구비한 하우징을 더 포함하고, 상기 하우징은, 상기 먼지센서장착부와 상기 외측면 사이에서 제1공간을 형성한다. The dust sensor module forms an outer surface on one side of the circumferential surface of the case, and further includes a housing provided with a dust sensor mounting part in which a dust sensor is mounted, and the housing includes the dust sensor mounting part and the outer surface. The first space is formed therebetween.

상기 하우징의 외측면에는, 상기 케이스의 외측공간과 상기 제1공간을 연통시키는 제1개구부와, 상기 케이스의 외측공간과 상기 제2공간을 연통시키는 제2개구부를 형성되고, 상기 제2개구부는, 상기 제1개구부 상측에 배치되어, 제1공간과 제2공간이 각각 외부와 연통할 수 있다. On the outer surface of the housing, a first opening portion communicating the outer space of the case and the first space, and a second opening portion communicating the outer space of the case with the second space are formed, and the second opening portion , It is disposed on the upper side of the first opening, the first space and the second space can communicate with the outside, respectively.

상기 제2개구부는, 상기 제1공간과 구별되는 상기 먼지센서 장착부의 상측으로 개구되어, 케이스를 따라 상측에서 하측으로 유동하는 공기가 제2공간으로 유동할 수 있다. The second opening is opened above the dust sensor mounting portion, which is different from the first space, and air flowing from the upper side to the lower side along the case may flow into the second space.

상기 하우징에는, 상기 먼지센서 장착부와 상기 제1공간을 구획하고, 상기 먼지센서 흡입구 및 먼지센서 토출구가 형성되는 부분에서 흡입연통홀과 토출연통홀이 형성되는 격벽을 포함한다. The housing includes a partition wall in which the dust sensor mounting portion and the first space are partitioned, and a suction communication hole and a discharge communication hole are formed in a portion where the dust sensor suction port and the dust sensor discharge port are formed.

상기 하우징은, 상기 격벽과, 상기 제1개구부 사이에 배치되고, 상기 제1공간과 상기 제2공간을 연통시키는 그릴홀이 형성된 측면그릴을 포함하여, 측면그릴을 통해 제2공간의 공기가 제1공간으로 유입될 수 있다. The housing includes a side grill disposed between the partition wall and the first opening, and having a grill hole communicating with the first space and the second space, so that air in the second space is removed through the side grill. It can be introduced into one space.

복수의 연통홀을 형성하고, 상기 제1개구부와 상기 제2개구부를 커버하는 하우징커버를 더 포함하고, 상기 하우징커버에는, 상기 케이스 외측공간과 상기 제1공간을 연통시키는 적어도 하나의 제1연통홀과, 상기 케이스 외측공간과 상기 제2공간을 연통시키는 적어도 하나의 제2연통홀이 형성되고, 상기 제2연통홀은, 상기 제1연통홀의 상측에 배치되어, 제1공간과 제2공간은 각각 외부와 연통하고, 제2공간으로 케이스를 따라 유동하는 공기가 유입될 수 있다. At least one first communication that forms a plurality of communication holes, and further includes a housing cover that covers the first opening and the second opening, and wherein the housing cover communicates with the outer space of the case and the first space. A hole, at least one second communication hole communicating with the outer space of the case and the second space is formed, and the second communication hole is disposed above the first communication hole, and the first space and the second space Each communicates with the outside, and air flowing along the case may be introduced into the second space.

상기 먼지센서는, 상기 제1공간의 하측으로 먼지센서흡입구를 형성하고, 상기 제1공간의 상측으로 먼지센서토출구를 형성하며, 제1공간은, 상단부에서 하단부로 갈수록 면적이 넓어지는 형태를 가져, 제1공간의 하측으로 유속이 느린 공기가 유입되고, 제1공간의 상측으로 먼지센서에서 토출된 공기가 빠르게 토출될 수 있다. The dust sensor forms a dust sensor suction port below the first space, and forms a dust sensor discharge port above the first space, and the first space has a shape that increases in area from the upper end to the lower end. , Air having a slow flow rate may be introduced into the lower side of the first space, and air discharged from the dust sensor may be rapidly discharged to the upper side of the first space.

기타 실시예들의 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.Specific details of other embodiments are included in the detailed description and drawings.

본 발명의 공기조화기에 따르면 다음과 같은 효과가 하나 혹은 그 이상 있다.According to the air conditioner of the present invention, there are one or more of the following effects.

첫째, 본 발명에 따른 공기조화기는, 케이스가 실내공간의 천장면에 설치되는 천장형 실내기로써, 케이스의 둘레면이 노출되는 구조를 가진다. 이러한 공기조화기의 실내기 구조에서, 먼지센서를 하부패널에 비해 상대적으로 공기의 유동이 적게 형성되는 둘레면의 일측에 먼지센서를 포함하는 먼지센서모듈을 장착하여, 먼지센서에 의해 측정되는 먼지농도의 신뢰도가 높아지는 장점이 있다. First, the air conditioner according to the present invention is a ceiling type indoor unit in which the case is installed on the ceiling surface of the indoor space, and has a structure in which the circumferential surface of the case is exposed. In the indoor unit structure of the air conditioner, a dust sensor module including a dust sensor is mounted on one side of the circumferential surface where the air flow is relatively small compared to the lower panel, and the dust concentration measured by the dust sensor. It has the advantage of increasing the reliability.

둘째, 본 발명에 따른 공기조화기는, 외부케이스와 내부케이스로 구분되고, 내부케이스와 외부케이스 사이에 먼지센서를 배치하여, 외부케이스와 내부케이스 사이의 공간으로 유입되어 유속이 저하된 공기를 측정하므로, 먼지센서에 의해 측정되는 먼지농도의 신뢰도가 높아지는 장점이 있다.Second, the air conditioner according to the present invention is divided into an outer case and an inner case, and a dust sensor is disposed between the inner case and the outer case to measure the air flowing into the space between the outer case and the inner case and the flow rate lowered. Therefore, the reliability of the dust concentration measured by the dust sensor is increased.

셋째, 먼지센서가 먼지농도를 측정하는 제1공간은 외부공기가 제2공간을 거쳐 유입되는 구조를 형성하여, 외부공기가 제2공간을 거쳐 제1공간으로 유입되므로, 먼지센서가 먼지를 측정하는 공간의 공기의 유속은, 한층 저하되므로, 먼지농도 측정의 신뢰성이 높아지는 장점이 있다. Third, the first space in which the dust sensor measures the dust concentration forms a structure in which external air flows in through the second space, so that the external air flows through the second space into the first space, so the dust sensor measures dust. Since the flow velocity of the air in the said space is further reduced, the reliability of the dust concentration measurement has an advantage.

본 발명의 효과들은 이상에서 언급한 효과들로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

도 1은 본 발명의 일 실시예에 따른 공기조화기의 실내기 하측 사시도이다. 1 is a lower perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

도 2는, 본 발명의 일 실시예에 따른 공기조화기의 실내기 상측 사시도이다. 2 is a top perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

도 3은, 본 발명의 일 실시예에 따른 공기조화기의 실내기 측단면도이다. 3 is a side sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.

도 4는, 도 3의 A부분의 확대도이다.4 is an enlarged view of part A of FIG. 3.

도 5는, 본 발명의 일 실시예에 따른 먼지센서모듈의 외측 사시도이다. 5 is an external perspective view of a dust sensor module according to an embodiment of the present invention.

도 6는, 본 발명의 일 실시예에 따른 먼지센서모듈의 내측 사시도이다.6 is an inner perspective view of a dust sensor module according to an embodiment of the present invention.

도 7는, 본 발명의 일 실시예에 따른 먼지센서모듈의 측단면도이다.7 is a side cross-sectional view of a dust sensor module according to an embodiment of the present invention.

도 8은, 도 5의 하우징 커버가 제거된 상태의 먼지센서모듈의 외측 사시도이다.8 is an external perspective view of the dust sensor module in a state in which the housing cover of FIG. 5 is removed.

도 9은, 본 발명의 일 실시예에 따른 먼지센서의 정면도이다. 9 is a front view of a dust sensor according to an embodiment of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 명세서 전체에 걸쳐 동일 참조 부호는 동일 구성 요소를 지칭한다.Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

이하, 본 발명의 실시예들에 의하여 공기조화기의 실내기를 설명하기 위한 도면들을 참고하여 본 발명에 대해 설명하도록 한다.Hereinafter, the present invention will be described with reference to the drawings for explaining the indoor unit of the air conditioner according to embodiments of the present invention.

<전체구성><Overall configuration>

도 1은 본 발명의 일 실시예에 따른 공기조화기의 실내기 하측 사시도이다. 도 2는, 본 발명의 일 실시예에 따른 공기조화기의 실내기 상측 사시도이다. 도 3은, 본 발명의 일 실시예에 따른 공기조화기의 실내기 측단면도이다. 도 4는, 도 3의 A부분의 확대도이다.1 is a lower perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. 2 is a top perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. 3 is a side sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention. 4 is an enlarged view of part A of FIG. 3.

이하에서는, 도 1 내지 도 4을 참조하여, 본 실시예에 따른 공기조화기의 실내기를 설명한다. Hereinafter, the indoor unit of the air conditioner according to this embodiment will be described with reference to FIGS. 1 to 4.

본 실시예에 따른 공기조화기의 실내기는 실내공간의 천장면에 설치되는 천장형 공기조화기이다. 본 실시예에 따른 공기조화기의 실내기는, 실내공간의 상측에 배치되어, 하측방향으로 열교환된 공기를 토출할 수 있다. The indoor unit of the air conditioner according to the present embodiment is a ceiling type air conditioner installed on the ceiling surface of the indoor space. The indoor unit of the air conditioner according to the present embodiment is disposed on the upper side of the indoor space and can discharge the heat-exchanged air in the downward direction.

본 실시예에 따른 공기조화기는 상부면(10a)이 실내공간의 천장면에 설치되고, 하부면이 개구된 케이스(10), 케이스(10)의 개구된 하부면에 설치되어, 케이스(10)와 관계에서 토출구(18)를 형성하고, 흡입구(16a)가 형성되는 흡입구패널(16), 케이스(10)의 내측공간에 배치되고, 케이스(10) 내측의 공기를 흡입구(16a)에서 토출구(18)로 유동시키는 송풍모듈(21), 송풍모듈(21)에 의해 토출구(18)로 유동하는 공기를 냉매와 열교환하는 열교환기(26) 및 케이스(10)의 일측에 배치되어, 실내공간의 먼지농도를 측정하는 먼지센서모듈(50)을 포함한다. Air conditioner according to the present embodiment, the upper surface (10a) is installed on the ceiling surface of the interior space, the lower surface is installed in the case 10, the case 10 is installed on the opened lower surface, the case 10 The discharge port 18 is formed in relation to the inlet panel 16, the inlet panel 16a is formed, and is disposed in the inner space of the case 10, and the air inside the case 10 is discharged from the inlet port 16a ( 18) is arranged on one side of the heat exchanger (26) and the case (10) for heat exchange with the refrigerant to the air flowing into the discharge module (18) by the blowing module (21) to flow to the refrigerant module (21) It includes a dust sensor module 50 for measuring the dust concentration.

케이스(10)는 송풍모듈(21)과 열교환기(26)가 배치되는 공간을 형성하는 내부케이스(14)와, 내부케이스(14) 외측에 배치되어 외측 둘레면(10b)을 형성하는 외부케이스(12)를 포함한다. 내부케이스(14)와 외부케이스(12)는 하나의 구성으로 연결되거나, 복수의 구성의 조합으로 형성될 수 있다. 여기서, 내부케이스(14)와 외부케이스(12)는 배치를 기준으로 구분하고, 구성 간의 체결관계 등을 기준을 구분하지 않는다. The case 10 includes an inner case 14 forming a space in which the blowing module 21 and the heat exchanger 26 are disposed, and an outer case disposed outside the inner case 14 to form an outer circumferential surface 10b. (12). The inner case 14 and the outer case 12 may be connected in one configuration, or may be formed in a combination of multiple configurations. Here, the inner case 14 and the outer case 12 are classified based on the arrangement, and the fastening relationship between components is not classified.

내부케이스(14)는 송풍팬(22)에 의해 유동하는 공기를 가이드할 수 있다. 내부케이스(14)는 송풍팬(22), 팬모터(24), 열교환기(26)가 배치되는 공간을 형성한다. The inner case 14 can guide the air flowing by the blowing fan 22. The inner case 14 forms a space in which the blowing fan 22, the fan motor 24, and the heat exchanger 26 are disposed.

내부케이스(14)는 흡입구패널(16)과 토출구(18) 및 토출유로(19)를 형성할 수 있다. 내부케이스(14)는, 하측이 개구되고, 내측에 공간을 형성하는 원통형의 형상을 가질 수 있다. 내부케이스(14)의 하측단부는 공기의 토출방향을 위해, 외측방향(송풍팬의 회전축에서 멀어지는 방향)으로 밴딩되는 구조를 가질 수 있다. The inner case 14 may form a suction port panel 16, a discharge port 18, and a discharge channel 19. The inner case 14 may have a cylindrical shape in which a lower side is opened and a space is formed inside. The lower end of the inner case 14 may have a structure that is bent in an outer direction (a direction away from the rotational axis of the blower fan) for the air discharge direction.

외부케이스(12)는 내부케이스(14)의 외측에 배치된다. 외부케이스(12)는 실내기의 외측 반경방향으로 배치되는 둘레면(10b)을 포함할 수 있다. 외부케이스(12)는, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 방향으로 형성될 수 있다. 외부케이스(12)는 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 외부케이스-상부(12b1)와, 상측에서 하측으로 갈수록 단면의 넓이가 유지되거나 줄어드는 외부케이스-하부(12b2)를 포함한다. The outer case 12 is disposed outside the inner case 14. The outer case 12 may include a circumferential surface 10b disposed in an outer radial direction of the indoor unit. The outer case 12 may be formed in a direction in which the width of the cross section increases from the upper side to the lower side. The outer case 12 includes an outer case-top 12b1 in which the width of the cross section increases from the upper side to the lower side, and an outer case-lower portion 12b2 in which the width of the cross-section is maintained or decreased as it goes from the upper side to the lower side.

본 실시예에 따른 외부케이스(12)는 실내기가 실내의 공간에 장착될 때, 외부케이스(12)가 외부로 노출되는 구조이다. 따라서, 실내기의 작동으로 실내공간의 공기가 유동할 때, 외부케이스(12)의 둘레에서는, 외부케이스(12)의 둘레면을 따라 상측에서 하측으로 공기가 유동할 수 있다. The outer case 12 according to the present embodiment is a structure in which the outer case 12 is exposed to the outside when the indoor unit is mounted in an indoor space. Accordingly, when the air in the indoor space flows due to the operation of the indoor unit, air may flow from the upper side to the lower side along the circumferential surface of the outer case 12 in the circumference of the outer case 12.

외부케이스(12)의 일측에서는 먼지센서모듈(50)이 장착될 수 있다. 외부케이스(12)와 내부케이스(14) 사이에는 일정공간이 형성될 수 있다. 외부케이스(12)와 내부케이스(14) 사이에는, 먼지센서모듈(50)이 배치되는 공간이 형성될 수 있다. 먼지센서모듈(50)은, 외부케이스-상부(12b1)의 내측으로 배치될 수 있다. 즉, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 형태를 가진 외부케이스(12)의 내측에 배치될 수 있다. 먼지센서모듈(50)은, 외부케이스(12)와 내부케이스(14) 사이에서 먼지센서(80)가 먼지의 농도를 측정하는 제1공간(S1)과, 외부케이스(12)와 내부케이스(14) 사이에서 제1공간(S1)으로 유입되는 공기가 유동하는 제2공간(S2)을 포함하는 의미일 수 있다. The dust sensor module 50 may be mounted on one side of the outer case 12. A predetermined space may be formed between the outer case 12 and the inner case 14. A space in which the dust sensor module 50 is disposed may be formed between the outer case 12 and the inner case 14. The dust sensor module 50 may be disposed inside the outer case-top 12b1. That is, it may be disposed inside the outer case 12 having a shape in which the width of the cross section increases from the upper side to the lower side. The dust sensor module 50 includes a first space S1 in which the dust sensor 80 measures the concentration of dust between the outer case 12 and the inner case 14, and the outer case 12 and the inner case ( 14) may mean a second space (S2) through which the air flowing into the first space (S1) flows.

외부케이스(12)와 내부케이스(14) 사이에는, 먼지센서(80)가 공기를 흡입하고 토출하는 제1공간(S1)과, 제1공간(S1) 및 외부케이스(12)의 외측공간과 연통하는 제2공간(S2)이 형성될 수 있다. Between the outer case 12 and the inner case 14, a first space (S1) through which the dust sensor 80 sucks and discharges air, and an outer space of the first space (S1) and the outer case (12). A second space S2 communicating therewith may be formed.

본 실시예에 따른 천장형 실내기는, 토출구(18)에서 토출되는 공기가 실내기의 하측 대각방향으로 형성되므로, 외부케이스(12)의 외측에서는, 외부케이스(12)의 하측으로 공기가 유동하는 하강기류가 형성된다. 따라서, 제2공간(S2)이 외부케이스(12) 외측가 연통하기 위한 제2개구부(58)는 제1공간(S1)의 상측에서 형성될 수 있다. 즉, 외부케이스(12)의 외측을 따라 상측에서 하측으로 유동하는 공기는, 제2공간(S2)과 연통하는 제2개구부(58)를 통해 제2공간(S2)으로 유입될 수 있다. 특히, 제2공간(S2)이 외부케이스(12) 외측가 연통하기 위한 제2개구부(58)는, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 형태를 가진 외부케이스(14)의 일측에 배치되어, 외부케이스(14)를 따라 하측으로 유동하는 공기가 제2개구부(58)로 유입될 수 있다. The ceiling-type indoor unit according to the present embodiment, since the air discharged from the discharge port 18 is formed in the diagonal direction of the lower side of the indoor unit, outside the outer case 12, the air flows downward to the lower side of the outer case 12 Airflow is formed. Therefore, the second opening 58 for the second space S2 to communicate with the outside of the outer case 12 may be formed above the first space S1. That is, air flowing from the upper side to the lower side along the outside of the outer case 12 may be introduced into the second space S2 through the second opening 58 communicating with the second space S2. In particular, the second opening (58) for the second space (S2) to communicate with the outside of the outer case (12) is arranged on one side of the outer case (14) having a shape in which the width of the cross section increases from the upper side to the lower side. , Air flowing downward along the outer case 14 may be introduced into the second opening 58.

흡입구패널(16)은 케이스(10)의 개구된 하측에 배치될 수 있다. 흡입구패널(16)에는, 실내기 내부로 공기가 유입되는 복수의 흡입구(16a)가 형성될 수 있다. 흡입구패널(16)에는, 흡입되는 공기 중의 이물질을 걸러내는 필터(미도시)가 배치될 수 있다.The intake panel 16 may be disposed under the opened lower side of the case 10. In the intake panel 16, a plurality of intake ports 16a through which air is introduced into the indoor unit may be formed. A filter (not shown) may be disposed on the intake panel 16 to filter out foreign substances in the intake air.

흡입구패널(16)과, 케이스(10) 사이에는 토출구(18)가 형성될 수 있다. 본 실시예에 따른 내부케이스(14)는 원통형의 형상을 가지고, 하측으로 원형의 개구홀을 형성하며, 흡입구패널(16)은 원판형태를 가지는 바, 토출구(18)는 고리형태를 가질 수 있다. A discharge port 18 may be formed between the suction port panel 16 and the case 10. The inner case 14 according to the present embodiment has a cylindrical shape, forms a circular opening hole downward, and the suction port panel 16 has a disc shape, and the discharge port 18 can have a ring shape. .

송풍모듈(21)은 회전으로 공기를 유동시키는 송풍팬(22), 송풍팬(22)을 회전시키는 팬모터(24), 송풍팬(22)에 의해 흡입되는 공기를 가이드하는 벨마우스(25)를 포함한다. The blowing module 21 is a blowing fan 22 for flowing air by rotation, a fan motor 24 for rotating the blowing fan 22, and a bell mouse 25 for guiding air sucked by the blowing fan 22 It includes.

송풍팬(22)은 흡입구(16a) 상측에 배치된다. 따라서, 송풍팬(22)은, 송풍팬(22) 하측의 공기를 흡입하여, 송풍팬(22) 둘레방향으로 유동시킨다. 송풍팬(22)은 열교환기(26)의 내측에 배치된다. The blowing fan 22 is disposed above the suction port 16a. Therefore, the blowing fan 22 sucks the air under the blowing fan 22 and flows it in the circumferential direction of the blowing fan 22. The blower fan 22 is disposed inside the heat exchanger 26.

팬모터(24)는 케이스(10)의 상부면(10a)에 장착되고, 송풍팬(22)을 회전시킨다. 벨마우스(25)는 송풍팬(22)과 흡입구패널(16) 사이에 배치될 수 있다. The fan motor 24 is mounted on the upper surface 10a of the case 10 and rotates the blowing fan 22. The bell mouse 25 may be disposed between the blower fan 22 and the intake panel 16.

열교환기(26)는, 송풍팬(22)의 둘레를 따라 배치된다. 본 실시예에 따른 열교환기(26)는 원통형의 형상으로 배치될 수 있다. 열교환기(26)의 하측에는, 응축수를 일시적으로 저장하고 가이드하는 드레인팬(28)이 배치될 수 있다. 드레인팬(28)은 열교환기(26)에 거치될 수 있으며, 응축수를 한쪽 방향으로 가이드하도록 경사지게 형성될 수 있다. The heat exchanger 26 is disposed along the periphery of the blower fan 22. The heat exchanger 26 according to the present embodiment may be arranged in a cylindrical shape. A drain pan 28 for temporarily storing and guiding condensate may be disposed under the heat exchanger 26. The drain pan 28 may be mounted on the heat exchanger 26 and may be inclined to guide condensate in one direction.

<먼지센서모듈><Dust sensor module>

도 9는, 도 3의 A부분의 확대도이다. 도 5는, 본 발명의 일 실시예에 따른 먼지센서모듈의 외측 사시도이다. 도 6는, 본 발명의 일 실시예에 따른 먼지센서모듈의 내측 사시도이다. 도 7는, 본 발명의 일 실시예에 따른 먼지센서모듈의 측단면도이다. 도 8은, 도 5의 하우징 커버가 제거된 상태의 먼지센서모듈의 외측 사시도이다. 도 9은, 본 발명의 일 실시예에 따른 먼지센서의 정면도이다. 9 is an enlarged view of part A of FIG. 3. 5 is an external perspective view of a dust sensor module according to an embodiment of the present invention. 6 is an inner perspective view of a dust sensor module according to an embodiment of the present invention. 7 is a side cross-sectional view of a dust sensor module according to an embodiment of the present invention. 8 is an external perspective view of the dust sensor module in a state in which the housing cover of FIG. 5 is removed. 9 is a front view of a dust sensor according to an embodiment of the present invention.

이하에서는, 도 4 내지 도 9를 참조하여, 본 실시예에 따른 먼지센서모듈을 설명한다. Hereinafter, a dust sensor module according to the present embodiment will be described with reference to FIGS. 4 to 9.

도 4 내지 도 9에서, 실내기의 송풍팬(22)이 회전하는 회전축방향을 기준으로, 회전축에 가까워지는 방향을 내측방향으로, 회전축에 멀어지는 방향을 외측방향으로 설명한다. In FIGS. 4 to 9, the direction closer to the rotational axis is inward, and the direction away from the rotational axis is described in the outer direction based on the rotational axis direction in which the blowing fan 22 of the indoor unit rotates.

먼지센서모듈(50)은 외부케이스(12)의 일측에 배치될 수 있다. 먼지센서모듈(50)은, 먼지센서 흡입구(82)로 유입된 공기 중의 먼지농도를 측정하고, 먼지센서 토출구(84)로 배출하는 먼지센서(80), 둘레면(10b)의 내측에 배치되고, 먼지센서 흡입구(82) 및 먼지센서 토출구(84)가 향하는 방향에서 일정공간을 형성하는 제1공간(S1), 둘레면(10b) 내측에서, 제1공간(S1)의 둘레에서 일정공간을 형성하며, 케이스(10) 외측과 제1공간(S1)에 각각 연통되는 제2공간(S2)을 포함한다. The dust sensor module 50 may be disposed on one side of the outer case 12. The dust sensor module 50 is disposed inside the dust sensor 80 and the circumferential surface 10b to measure the dust concentration in the air introduced into the dust sensor suction port 82 and discharge it to the dust sensor discharge port 84. , A first space (S1) forming a certain space in the direction in which the dust sensor intake (82) and the dust sensor discharge port (84) face, inside a circumferential surface (10b), a certain space around the first space (S1) It is formed, and includes a second space (S2) that communicates with the outside of the case 10 and the first space (S1), respectively.

먼지센서(80)는, 외부케이스(12)의 내측공간에 배치된다. 먼지센서(80)는, 일측면에서, 먼지센서 흡입구(82)와 먼지센서 토출구(84)를 형성한다. 먼지센서(80)는 먼지센서 흡입구(82)를 통해 유입되는 공기 중에 포함된 먼지의 농도를 감지할 수 있다. The dust sensor 80 is disposed in the inner space of the outer case 12. On one side, the dust sensor 80 forms a dust sensor suction port 82 and a dust sensor discharge port 84. The dust sensor 80 may detect the concentration of dust contained in the air flowing through the dust sensor intake 82.

먼지센서(80)는, 먼지센서 흡입구(82)를 통해 흡입된 공기를 가열하여 상측으로 이동하는 공기 중의 먼지농도를 측정할 수 있다. 따라서, 본 실시예에서 사용되는 먼지센서(80)는, 수직하게 배치되고, 먼지센서흡입구(16a)가 하측에 형성되고, 먼지센서토출구(18)가 상측에 형성되는 구조일 수 있다. 따라서, 이하에서 설명할 먼지센서(80)의 일측에 형성되는 격벽(62)도 수직하게 형성되는 구조일 수 있다. The dust sensor 80 may measure the concentration of dust in the air moving upward by heating the air sucked through the dust sensor intake 82. Therefore, the dust sensor 80 used in the present embodiment may be arranged vertically, the dust sensor suction port 16a is formed on the lower side, and the dust sensor discharge port 18 may be formed on the upper side. Accordingly, the partition wall 62 formed on one side of the dust sensor 80, which will be described below, may also have a vertically formed structure.

먼지센서모듈(50)은, 둘레면(10b)에 배치되고, 먼지센서(80)가 장착되고, 제1공간(S1)을 형성하는 하우징(52)과, 하우징(52)에 형성된 제1공간(S1)의 일측을 커버하는 하우징커버(64)를 포함한다. 하우징(52)은 외부케이스(12)의 일측에 배치될 수 있다. 하우징(52)은 외부케이스(12)와 일체로 형성되거나, 외부케이스(12)와 별개의 구성으로 형성될 수 있다. 본 실시예에 따른 하우징(52)은 외부케이스(12)와 별개의 구성으로 형성되며, 외부케이스(12)의 일측에 장착되는 구조를 가질 수 있다.The dust sensor module 50 is disposed on the circumferential surface 10b, the dust sensor 80 is mounted, the housing 52 forming the first space S1, and the first space formed in the housing 52 It includes a housing cover 64 covering one side of (S1). The housing 52 may be disposed on one side of the outer case 12. The housing 52 may be integrally formed with the outer case 12 or may be formed in a separate configuration from the outer case 12. The housing 52 according to the present embodiment is formed in a separate configuration from the outer case 12 and may have a structure mounted on one side of the outer case 12.

하우징(52)은, 외부케이스-상부(12b1)에 배치된다. 따라서, 하우징(52)은 하측으로 갈수록 외측방향으로 멀어지는 경사면을 형성하는 외측면(54)을 포함할 수 있다. 하우징(52)은, 먼지센서(80)가 장착되는 먼지센서 장착부(60)를 포함할 수 있다. 하우징(52)에는, 먼지센서(80)가 공기 중의 먼지농도를 측정하기 위한 공간을 형성하는 제1공간(S1)이 형성될 수 있다. 제1공간(S1)은 케이스(10) 외측과, 먼지센서(80) 사이에 배치될 수 있다. The housing 52 is disposed on the outer case-top 12b1. Accordingly, the housing 52 may include an outer surface 54 that forms an inclined surface that is further away from the outer direction toward the lower side. The housing 52 may include a dust sensor mounting portion 60 on which the dust sensor 80 is mounted. A first space S1 in which the dust sensor 80 forms a space for measuring the dust concentration in the air may be formed in the housing 52. The first space S1 may be disposed outside the case 10 and between the dust sensor 80.

하우징(52)의 외측면(54)은, 외부케이스-상부(12b1)와 동일한 구조를 가질 수 있다. 따라서, 외측면(54)은, 둘레면(10b)과 같이, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 방향으으로 형성될 수 있다. The outer surface 54 of the housing 52 may have the same structure as the outer case-top 12b1. Therefore, the outer surface 54, like the circumferential surface 10b, may be formed in a direction in which the width of the cross section increases from the upper side to the lower side.

하우징(52)의 외측면(54)은, 제1공간(S1)이 형성되는 부분에서, 개구부(56)를 형성할 수 있다. 하우징(52)의 외측면(54)은, 제1공간(S1)이 형성되는 부분에서 제1개구부(56)를 형성하고, 제1공간(S1)과 연통되지 않는 제1개구부(56)의 상측에서 제2개구부를 형성할 수 있다. The outer surface 54 of the housing 52 may form an opening 56 in a portion where the first space S1 is formed. The outer surface 54 of the housing 52 forms a first opening portion 56 at a portion where the first space S1 is formed, and the first opening portion 56 which is not in communication with the first space S1. A second opening can be formed on the upper side.

제1개구부(56) 및 제2개구부(58)에는, 복수의 연통홀(70, 72, 74)이 형성된 하우징커버(64)가 배치될 수 있다. 제1개구부(56)와 제2개구부(58)는 서로 다른 공간과 연통될 수 있다. 제1개구부(56)는, 제1공간(S1)과 연통할 수 있다. 제2개구부(58)는, 제2공간(S2)과 연통될 수 있다. 제1개구부(56)와 제2개구부(58)는, 하측으로 갈수록 외측방향으로 멀어지는 경사면을 형성하는 외측면(54)에서 상하방향으로 배치된다. 따라서, 수직하게 배치되는 먼지센서 장착부(60)의 상단이 제1개구부(56)와 제2개구부(58)를 구획할 수 있다. 마찬가지로, 수직하게 배치되는 격벽(62)의 상단이 제1개구부(56)와 제2개구부(58)를 구획할 수 있다. In the first opening 56 and the second opening 58, a housing cover 64 in which a plurality of communication holes 70, 72, and 74 are formed may be disposed. The first opening 56 and the second opening 58 may communicate with different spaces. The first opening 56 may communicate with the first space S1. The second opening 58 may be in communication with the second space S2. The first opening 56 and the second opening 58 are arranged in the vertical direction from the outer surface 54 forming an inclined surface that is further away from the outer direction toward the lower side. Therefore, the upper end of the dust sensor mounting portion 60 which is vertically arranged can partition the first opening portion 56 and the second opening portion 58. Similarly, the upper end of the partition wall 62 vertically arranged may partition the first opening 56 and the second opening 58.

제1개구부(56)는, 제1공간(S1)의 외측방향으로 형성된다. 제1개구부(56)는, 먼지센서(80)가 장착되는 먼지센서 장착부(60)의 높이에 대응하는 길이를 가질 수 있다. The first opening 56 is formed in the outer direction of the first space S1. The first opening 56 may have a length corresponding to the height of the dust sensor mounting portion 60 to which the dust sensor 80 is mounted.

제2개구부(58)는, 상하방향으로 복수의 개구홀(58a)이 형성되는 그릴구조를 가질 수 있다. 제2개구부(58)는, 먼지센서 장착부(60)의 상측공간과 외부케이스(12) 외측공간을 연통시킨다. 제2개구부(58)는, 제2공간(S2)과, 외부케이스(12)의 외측공간을 연통시킨다. The second opening 58 may have a grill structure in which a plurality of opening holes 58a are formed in the vertical direction. The second opening 58 communicates the upper space of the dust sensor mounting portion 60 and the outer space of the outer case 12. The second opening 58 communicates the second space S2 and the outer space of the outer case 12.

먼지센서 장착부(60)는, 먼지센서(80)가 장착되는 공간(?)과, 제1공간(S1) 사이에서 격벽(62)을 형성한다. 먼지센서 장착부(60)의 상단은, 하우징(52)의 제1개구부(56)와, 제2개구부(58) 사이에 배치되어, 제1개구부(56)와 제2개구부(58)가 연통되는 공간을 구획한다. 격벽(62)의 상단은, 하우징(52)의 제1개구부(56)와, 제2개구부(58) 사이에 배치되어, 제1개구부(56)와 제2개구부(58)가 연통되는 공간을 구획한다. 격벽(62)은, 먼지센서(80)의 배치를 고려하여, 수직한 형태를 가질 수 있다. 격벽(62)에는, 먼지센서 흡입구(82) 및 먼지센서 토출구(84)를 제1공간(S1)과 연통시키는 흡입연통홀(62a)과 토출연통홀(62b)이 형성될 수 있다. The dust sensor mounting unit 60 forms a partition 62 between the space (?) where the dust sensor 80 is mounted and the first space S1. The upper end of the dust sensor mounting portion 60 is disposed between the first opening portion 56 and the second opening portion 58 of the housing 52 so that the first opening portion 56 and the second opening portion 58 communicate with each other. Space is divided. The upper end of the partition wall 62 is disposed between the first opening 56 and the second opening 58 of the housing 52 to provide a space in which the first opening 56 and the second opening 58 communicate. Compartment. The partition wall 62 may have a vertical shape in consideration of the arrangement of the dust sensor 80. In the partition wall 62, a suction communication hole 62a and a discharge communication hole 62b for communicating the dust sensor suction port 82 and the dust sensor discharge port 84 with the first space S1 may be formed.

흡입연통홀(62a)과 토출연통홀(62b)은, 먼지센서 흡입구(82) 및 먼지센서 토출구(84)에 대응되는 위치에 형성될 수 있다. The suction communication hole 62a and the discharge communication hole 62b may be formed at positions corresponding to the dust sensor suction port 82 and the dust sensor discharge port 84.

하우징(52)은, 먼지센서 장착부(60)와, 제1개구부(56) 사이에 배치되고, 제1공간(S1)과 제2공간(S2)을 연통시키는 측면그릴(78)을 포함한다. 측면그릴(78)은, 제1공간(S1)의 양측면에 형성될 수 있다. 측면그릴(78)은 제1공간(S1)과 제2공간(S2)의 공기가 연통할 수 있도록 복수의 그릴홀(78a)이 형성될 수 있다. 측면그릴(78)의 상단부는, 격벽(62)의 상단에서 시작하여, 하측으로 갈수록 면적이 커지는 삼각형의 형태를 가질 수 있다. 측면그릴(78)은, 일측에서 수직하게 배치되는 격벽(62)과 접하고, 다른 일측에서 경사지게 배치되는 제1개구부(56) 또는 하우징커버(64)와 접하는 직각삼각형의 형태를 가질 수 있다. The housing 52 is disposed between the dust sensor mounting portion 60 and the first opening portion 56, and includes a side grill 78 for communicating the first space S1 and the second space S2. The side grills 78 may be formed on both side surfaces of the first space S1. The side grill 78 may be formed with a plurality of grill holes 78a so that the air in the first space S1 and the second space S2 can communicate. The upper end of the side grill 78 may have a triangular shape, starting from the upper end of the partition wall 62 and increasing in area toward the lower side. The side grill 78 may have a form of a right triangle in contact with the partition wall 62 vertically disposed at one side and the first opening 56 or the housing cover 64 disposed obliquely at the other side.

본 실시예에 따른 제1공간(S1)의 외측방향에는, 적어도 하나의 연통홀(70, 72)이 형성된 하우징커버(64)가 배치될 수 있다. 하우징커버(64)는, 복수의 연통홀(70, 72)이 형성되고, 제1개구부(56) 및/또는 제2개구부(58)를 커버할 수 있다. 하우징커버(64)는, 하우징(52)의 외측면(54)에 제1개구부(56)와 제2개구부(58)가 형성되는 부분에서 끼워지는 방식으로 하우징(52)과 결합될 수 있다. A housing cover 64 in which at least one communication hole 70 or 72 is formed may be disposed in an outer direction of the first space S1 according to the present embodiment. The housing cover 64 may be formed with a plurality of communication holes 70 and 72 and cover the first opening 56 and/or the second opening 58. The housing cover 64 may be combined with the housing 52 in such a way that it is fitted in a portion where the first opening 56 and the second opening 58 are formed on the outer surface 54 of the housing 52.

하우징커버(64)에는, 외부케이스(12) 외측공간과, 제1공간(S1) 또는 제2공간(S2)을 연통시키는 복수의 연통홀(70, 72, 74)이 형성될 수 있다. 하우징커버(64)에는, 외부케이스(12) 외측공간과 제1공간(S1)을 연통시키는 적어도 하나의 제1연통홀(70, 72)과, 외부케이스(12) 외측공간과 제2공간(S2)을 연통시키는 적어도 하나의 제2연통홀(74)이 형성될 수 있다. In the housing cover 64, a plurality of communication holes 70, 72 and 74 communicating with the outer space of the outer case 12 and the first space S1 or the second space S2 may be formed. In the housing cover 64, at least one first communication hole (70, 72) communicating the outer space of the outer case 12 and the first space (S1), the outer space of the outer case 12 and the second space ( At least one second communication hole 74 communicating S2) may be formed.

하우징커버(64)는, 제1공간(S1)을 커버하는 하부하우징커버(68)와, 제2공간(S2)을 커버하는 상부하우징커버(66)로 구분될 수 있다. The housing cover 64 may be divided into a lower housing cover 68 covering the first space S1 and an upper housing cover 66 covering the second space S2.

제1연통홀(70)은, 하부하우징커버(68)의 상측으로 형성될 수 있다. 제1연통홀(70, 72)은, 하부하우징커버(68)의 상측과 하측에서 복수개가 형성될 수 있다. 제1연통홀(70, 72)은, 하부하우징커버(68)의 상측에서 형성되는 제1상측연통홀(70)과, 하부하우징커버(68)의 하측에서 형성되는 제1하측연통홀(72)을 포함한다. 하부하우징커버(68)에는, 제1상측연통홀(70)과, 제1하측연통홀(72) 사이에서, 제1공간방향으로 오목한 패인 그루브(76)가 형성될 수 있다. 그루브(76)는, 제1하측연통홀(72)의 상측에 배치될 수 있다. 제1연통홀(70, 72)은, 제2연통홀(74)의 하측에 배치될 수 있다. The first communication hole 70 may be formed above the lower housing cover 68. A plurality of first communication holes 70 and 72 may be formed at upper and lower sides of the lower housing cover 68. The first communication holes 70 and 72 include a first upper communication hole 70 formed at an upper side of the lower housing cover 68 and a first lower communication hole 72 formed at a lower side of the lower housing cover 68. ). In the lower housing cover 68, a recessed groove 76 that is concave in the first spatial direction may be formed between the first upper communication hole 70 and the first lower communication hole 72. The groove 76 may be disposed above the first lower communication hole 72. The first communication holes 70 and 72 may be disposed below the second communication hole 74.

제2연통홀(74)은, 제2개구부(58)에 형성되는 복수의 개구홀(58a)에 대응되는 형태 및 배치를 가질 수 있다. The second communication hole 74 may have a shape and arrangement corresponding to a plurality of opening holes 58a formed in the second opening 58.

제1공간(S1)은, 먼지센서(80)가 공기를 흡입하고, 토출하는 공간을 형성한다. 제1공간(S1)은, 제2개구부(58)가 형성된 하우징(52)의 내측으로 형성될 수 있다. 제1공간(S1)은, 내측으로 먼지센서 장착부(60)의 격벽(62)이 배치되고, 외측으로 제1개구부(56)를 커버하는 하우징커버(64)가 배치될 수 있다. 제1공간(S1)은 양측면에서 제2공간(S2)과 연통하도록 그릴홀(78a)을 형성하는 측면그릴(78)이 배치될 수 있다. The first space S1 forms a space through which the dust sensor 80 sucks and discharges air. The first space S1 may be formed inside the housing 52 in which the second opening 58 is formed. In the first space S1, a partition wall 62 of the dust sensor mounting portion 60 is disposed inside, and a housing cover 64 covering the first opening portion 56 is disposed outside. The first space S1 may be provided with side grills 78 forming grill holes 78a to communicate with the second space S2 on both sides.

제1공간(S1)은 상측이 좁고, 하측이 넓게 형성될 수 있다. 제1공간(S1)은, 측단면이 상측에서 하측으로 갈수록 면적이 넓어지는, 삼각형의 형상으로 형성될 수 있다. 제1공간(S1)의 상측에서 먼지센서 토출구(84)가 배치되고, 제1공간(S1)의 하측에서 먼지센서 흡입구(82)가 배치된다. 따라서, 제1공간(S1)의 상부에는 공기의 흐름이 빠르고, 제1공간(S1)의 하부에는 공기의 흐름이 느리게 형성될 수 있다. The first space S1 may have a narrow upper side and a wide lower side. The first space S1 may be formed in a triangular shape in which a side cross-section increases from an upper side to a lower side, thereby increasing the area. The dust sensor discharge port 84 is disposed above the first space S1, and the dust sensor suction port 82 is disposed below the first space S1. Therefore, the air flow is fast in the upper portion of the first space S1, and the air flow can be slowly formed in the lower portion of the first space S1.

제1공간(S1)의 상측은, 먼지센서(80)에서 토출된 가열된 공기가 배출된다. 따라서, 제1공간(S1)의 상측으로 형성된 제1상측연통홀(70)으로는, 먼지센서(80)에서 토출된 공기가 외부로 토출될 수 있다. The heated air discharged from the dust sensor 80 is discharged above the first space S1. Therefore, the air discharged from the dust sensor 80 may be discharged to the outside through the first upper communication hole 70 formed toward the upper side of the first space S1.

제1공간(S1)의 하부에는, 제1공간(S1)의 공기가 먼지센서 흡입구(82)로 유동한다. 제1공간(S1)의 하부에는, 측면그릴(78)에 형성된 복수의 그릴홀(78a)을 통해 제2공간(S2)의 공기가 유입될 수 있다. In the lower portion of the first space S1, air in the first space S1 flows to the dust sensor intake 82. Air in the second space S2 may be introduced into the lower portion of the first space S1 through the plurality of grill holes 78a formed in the side grill 78.

제1공간(S1) 하부에는, 하부하우징커버(68)에 형성된 제1하측연통홀(72)로 외부공기가 유입되거나, 제1공간(S1)의 공기가 외부로 유동할 수 있다. External air may be introduced into the lower space of the first space S1, or the air of the first space S1 may flow outward through the first lower communication hole 72 formed in the lower housing cover 68.

제2공간(S2)은, 외부케이스(12)와 내부케이스(14) 사이의 공간에서 형성될 수 있다. 제2공간(S2)은, 제1공간(S1)과 구획될 수 있다. 제2공간(S2)은, 먼지센서(80)가 배치되는 위치에서, 먼지센서(80)가 제1공간(S1)을 향하는 방향을 제외한 위치에서 형성될 수 있다. 제2공간(S2)은 하우징(52)의 측면그릴(78)을 통해 제1공간(S1)과 연통할 수 있다. The second space S2 may be formed in a space between the outer case 12 and the inner case 14. The second space S2 may be partitioned from the first space S1. The second space S2 may be formed at a position in which the dust sensor 80 is disposed, except for a direction in which the dust sensor 80 faces the first space S1. The second space S2 may communicate with the first space S1 through the side grill 78 of the housing 52.

상부하우징커버(66)에 형성된 제2연통홀(74)로 외부공기가 제2공간(S2)으로 유입된다. 제2공간(S2)의 공기가 측면그릴(78)에 형성된 그릴홀(78a)을 통해 제1공간(S1)으로 유동할 수 있다. 외부케이스(12)의 외측을 따라 유동하는 공기는, 제2공간(S2)의 확장된 공간으로 유동하면서 유속이 저하될 수 있다. 따라서, 제2공간(S2)에서 유속이 저하된 공기가 제1공간(S1)으로 유동할 수 있다. 또한, 제2공간(S2)의 제2개구부(58)와, 측면그릴(78)에 형성된 그릴홀(78a)은 수직한 방향으로 배치되므로, 제1공간(S1)으로 유동하는 공기의 유속이 저하될 수 있다. External air flows into the second space S2 through the second communication hole 74 formed in the upper housing cover 66. The air in the second space S2 may flow to the first space S1 through the grill hole 78a formed in the side grill 78. The air flowing along the outer side of the outer case 12 may flow into the expanded space of the second space S2 while the flow velocity may be lowered. Accordingly, air having a lower flow rate in the second space S2 may flow to the first space S1. In addition, since the second opening 58 in the second space S2 and the grill hole 78a formed in the side grill 78 are arranged in a vertical direction, the flow velocity of air flowing into the first space S1 is It may degrade.

<본 발명의 구조에 따른 공기의 유동><Flow of air according to the structure of the present invention>

이하에서는, 도 3 내지 도 4, 도 6을 참조하여, 본 실시예에 따른 실내기에서의 공기의 유동을 설명한다. Hereinafter, the flow of air in the indoor unit according to the present embodiment will be described with reference to FIGS. 3 to 4 and 6.

도 3을 참조하면, 본 실시예에 따른 공기조화기의 실내기는, 송풍팬(22)의 회전으로 흡입구(16a)와 토출구(18) 주위에서 강한 공기유동이 형성된다. 또한, 본 발명 실내기의 구조상, 노출되는 케이스(10)의 둘레면에서도 공기유동이 형성된다. 노출되는 케이스(10)의 둘레면에서는, 흡입구(16a)와 토출구(18) 주위에서 형성되는 공기유동에 비해 상대적으로 적은 유속이 형성될 수 있다. Referring to Figure 3, the indoor unit of the air conditioner according to the present embodiment, a strong air flow is formed around the inlet 16a and the outlet 18 by rotation of the blowing fan 22. In addition, due to the structure of the indoor unit of the present invention, air flow is also formed in the circumferential surface of the exposed case 10. On the circumferential surface of the exposed case 10, a relatively small flow rate may be formed compared to the air flow formed around the inlet 16a and the outlet 18.

도 4를 참조하면, 외부케이스(12)의 외측에서 형성되는 공기의 유동은, 외부케이스(12)의 외부면을 타고, 하측방향으로 유동하는 공기유동을 형성할 수 있다. 이때, 외부케이스(12)에 경사진 면을 타고 하측으로 유동하는 공기는, 먼지센서모듈(50)의 상부에 형성되는 제2개구부(58a)와 제2연통홀(74)을 통해, 제2공간(S2)으로 유동할 수 있다. 제2공간(S2) 내부는 공기의 유동이 형성되는 않는 저압의 공간으로, 외부케이스(12)에 경사진 면을 타고 하측으로 유동하는 공기가 유입될 수 있다. Referring to FIG. 4, the flow of air formed outside the outer case 12 may form an air flow flowing in a downward direction by riding on the outer surface of the outer case 12. At this time, the air flowing downward on the inclined surface of the outer case 12, through the second opening 58a and the second communication hole 74 formed on the upper part of the dust sensor module 50, the second It can flow into the space (S2). The inside of the second space S2 is a low-pressure space where no air flow is formed, and air flowing downward on the inclined surface of the outer case 12 may be introduced.

제2공간(S2)으로 유입되는 공기는, 외부케이스(12)와 내부케이스(14)의 공간으로 유입되어 퍼지게 되므로, 상대적으로 유속이 저하될 수 있다. Since the air flowing into the second space S2 flows into the spaces of the outer case 12 and the inner case 14, the flow rate may be relatively reduced.

반면, 제2개구부(58a)와 제2연통홀(74)의 하측에 형성되는 제1상측연통홀(70)로는, 외부케이스(12)에 경사진 면을 타고 하측으로 유동하는 공기가 제1공간(S1)으로 유입되지 않는다. On the other hand, as the first upper communication hole 70 formed on the lower side of the second opening 58a and the second communication hole 74, the air flowing downward on the inclined surface of the outer case 12 is first It does not flow into the space S1.

제1공간(S1)의 상부에는, 먼지센서(80)에서 토출된 따뜻한 공기가 배출된다. 따라서, 제1공간(S1)의 상부로 토출된 따뜻한 공기는, 제1공간(S1)의 상부에 형성된 제1상측연통홀(70)을 통해 외부케이스(12) 외부로 배출되므로, 제1상측연통홀(70)로는, 외부케이스(12)에 경사진 면을 타고 하측으로 유동하는 공기가 제1공간(S1)으로 유입되지 않는다.In the upper part of the first space S1, warm air discharged from the dust sensor 80 is discharged. Therefore, since the warm air discharged to the upper portion of the first space S1 is discharged to the outside of the outer case 12 through the first upper communication hole 70 formed on the upper portion of the first space S1, the first upper side As the communication hole 70, air flowing downward through the inclined surface of the outer case 12 does not flow into the first space S1.

제1공간(S1)의 상부에는, 먼지센서(80)에서 토출된 따뜻한 공기가 제1상측연통홀(70)을 통해 외부케이스(12) 외부로 배출되므로, 제1상측연통홀(70)의 하측으로 배치되는, 측면그릴(78)에 형성된 그릴홀(78a)을 통해서는, 제2공간(S2)의 공기가 유입된다. 제1공간(S1)은, 상측에서 하측으로 갈수록 단면의 면적이 넓어지는 형태를 가지므로, 측면그릴(78)에 형성되는 그릴홀(78a)도 하측으로 갈수록 넓은 크기의 홀을 가진다. In the upper portion of the first space (S1), since the warm air discharged from the dust sensor 80 is discharged to the outside of the outer case 12 through the first upper communication hole 70, the first upper communication hole 70 The air in the second space S2 flows in through the grill hole 78a formed in the side grill 78, which is disposed downward. Since the first space S1 has a shape in which the area of the cross section increases from the upper side to the lower side, the grill hole 78a formed in the side grill 78 also has a hole having a larger size toward the lower side.

측면그릴(78)에 형성되는 그릴홀(78a)의 전체면적은, 제1상측연통홀(70)보다 큰 면적을 형성하므로, 제2공간(S2)에서 제1공간(S1)으로 유입되는 공기의 유속은 저하될 수 있다. Since the entire area of the grill hole 78a formed in the side grill 78 forms a larger area than the first upper communication hole 70, air flowing into the first space S1 from the second space S2 The flow rate of can be lowered.

제2연통홀(74)에서는, 제1공간(S1)의 공기가 외부로 토출되거나, 외부의 공기가 제1공간(S1)으로 유입될 수 있다. In the second communication hole 74, air in the first space S1 may be discharged to the outside, or external air may be introduced into the first space S1.

즉, 제2공간(S2)에서 그릴홀(78a)을 통해 제1공간(S1)으로 유입되는 공기와, 제1공간(S1)에서 제1상측연통홀(70)을 통해 외부케이스(12) 외측으로 유동하는 공기량에 따라, 외부케이스(12)의 외부면을 따라 유동하는 공기가 제2연통홀(74)을 통해 제1공간(S1)으로 유입되거나, 제1공간(S1)의 공기가 제2연통홀(74)을 통해 외부로 토출될 수 있다. 다만, 외부케이스(12)의 외부면을 따라 유동하는 공기가 제2연통홀(74)을 통해 제1공간(S1)으로 유입되더라도, 제1공간(S1)으로 유입된 공기는, 제2공간(S2)에서 그릴홀(78a)을 통해 유입된 공기와 섞이므로, 먼지센서 흡입구(82)로 유입되는 공기의 유속이 급격히 빨라지지 않는다. That is, the air flowing into the first space S1 through the grill hole 78a in the second space S2 and the outer case 12 through the first upper communication hole 70 in the first space S1 Depending on the amount of air flowing outward, air flowing along the outer surface of the outer case 12 flows into the first space S1 through the second communication hole 74 or the air in the first space S1 It may be discharged to the outside through the second communication hole (74). However, even though air flowing along the outer surface of the outer case 12 flows into the first space S1 through the second communication hole 74, the air introduced into the first space S1 is the second space. Since it is mixed with the air introduced through the grill hole 78a in (S2), the flow rate of the air flowing into the dust sensor intake 82 is not rapidly increased.

상기와 같이, 본 실시예에 따른 먼지센서모듈(50)은, 둘레면이 노출되는 천장형 실내기의 둘레면의 일측에 배치되고, 먼지센서(80)가 먼지의 농도를 측정하는 제1공간(S1)에서의 공기유속이 저하된 상태가 유지되므로, 신뢰성 있는 먼지농도를 측정할 수 있다. As described above, the dust sensor module 50 according to the present embodiment is disposed on one side of the circumferential surface of the ceiling-type indoor unit where the circumferential surface is exposed, and the dust sensor 80 measures a first space for measuring the concentration of dust ( Since the state in which the air flow rate in S1) is lowered is maintained, reliable dust concentration can be measured.

이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시예에 한정되지 아니하며, 특허청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시가 가능한 것은 물론이고, 이러한 변형실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안될 것이다.In the above, although the preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

Claims (12)

실내공간의 천장면에 설치되는 상부면과, 상기 상부면에서 하측으로 연장되어 실내공간으로 노출되는 둘레면을 포함하는 케이스;A case including an upper surface installed on the ceiling surface of the indoor space and a circumferential surface extending downward from the upper surface and exposed to the indoor space; 상기 케이스의 하부면에 배치되고, 흡입구를 형성하며, 상기 케이스와 사이에서 토출구를 형성하는 하부패널;A lower panel disposed on the lower surface of the case, forming a suction port, and forming a discharge port between the case; 상기 케이스 내측에 배치되고, 상기 케이스 내부의 공기를 상기 흡입구에서 상기 토출구로 유동시키는 송풍모듈;A blowing module disposed inside the case and flowing air inside the case from the suction port to the discharge port; 상기 송풍모듈에 의해 상기 토출구로 유동하는 공기를 냉매와 열교환하는 열교환기; 및A heat exchanger for exchanging air flowing into the outlet by the blower module with a refrigerant; And 상기 케이스의 둘레면의 일측에 배치되어, 실내공간의 먼지농도를 감지하는 먼지센서모듈을 포함하고,Is disposed on one side of the circumferential surface of the case, and includes a dust sensor module for detecting the dust concentration in the indoor space, 상기 먼지센서모듈은, The dust sensor module, 먼지센서 흡입구로 유입되어 먼지센서 토출구로 배출되는 공기 중의 먼지농도를 측정하는 먼지센서을 포함하고,It includes a dust sensor that measures the concentration of dust in the air that flows into the dust sensor inlet and discharges through the dust sensor outlet. 상기 먼지센서모듈에는, 상기 둘레면의 내측에 배치되고, 상기 먼지센서 흡입구 및 상기 먼지센서 토출구가 향하는 방향에서 일정공간을 형성하는 제1공간과,In the dust sensor module, a first space which is disposed inside the circumferential surface and forms a predetermined space in a direction in which the dust sensor suction port and the dust sensor discharge port face, 상기 둘레면 내측에서, 상기 제1공간과 구획되는 일정공간을 형성하며, 일측에서 상기 케이스의 외부공간과 연통되고, 일측과 구별되는 타측에서 상기 제1공간과 연통되는 제2공간이 형성되는을 포함하는 공기조화기의 실내기.Inside the circumferential surface, a certain space that is partitioned from the first space is formed, and at one side, a second space communicating with the outer space of the case is formed, and a second space communicating with the first space is formed on the other side. The indoor unit of the air conditioner containing. 제 1 항에 있어서,According to claim 1, 상기 케이스는,The case, 상기 송풍모듈과 상기 열교환기가 배치되는 공간을 형성하는 내부케이스와, 상기 내부케이스 외측에 배치되어 상기 둘레면을 형성하는 외부케이스를 포함하고, And an inner case forming a space in which the blower module and the heat exchanger are disposed, and an outer case disposed outside the inner case to form the circumferential surface, 상기 먼지센서모듈은, 상기 외부케이스의 일측에 배치되는 공기조화기의 실내기.The dust sensor module, the indoor unit of the air conditioner disposed on one side of the outer case. 제 2 항에 있어서,According to claim 2, 상기 제2공간은, 상기 내부케이스와 상기 외부케이스 사이에서 형성되는 공기조화기의 실내기.The second space is an indoor unit of an air conditioner formed between the inner case and the outer case. 제 3 항에 있어서,The method of claim 3, 상기 외부케이스는, 상측에서 하측으로 갈수록 단면의 넓이가 넓어지는 형상을 가지고, The outer case has a shape in which the width of the cross section increases from the upper side to the lower side, 상기 제2공간은, 상기 제1공간의 상측에서 상기 외부케이스의 외부공간과 연통되는 공기조화기의 실내기.The second space is an indoor unit of an air conditioner in communication with the outer space of the outer case from above the first space. 제 1 항에 있어서,According to claim 1, 상기 먼지센서모듈은,The dust sensor module, 상기 케이스의 둘레면 일측에서 외측면을 형성하고, 내측으로 먼지센서가 장착되는 먼지센서장착부를 구비한 하우징을 더 포함하고, The outer surface is formed on one side of the circumferential surface of the case, and further includes a housing having a dust sensor mounting portion on which the dust sensor is mounted. 상기 하우징은, The housing, 상기 먼지센서장착부와 상기 외측면 사이에서 제1공간을 형성하는 공기조화기의 실내기. An indoor unit of an air conditioner forming a first space between the dust sensor mounting portion and the outer surface. 제 5 항에 있어서,The method of claim 5, 상기 하우징의 외측면에는, On the outer surface of the housing, 상기 케이스의 외측공간과 상기 제1공간을 연통시키는 제1개구부와, 상기 케이스의 외측공간과 상기 제2공간을 연통시키는 제2개구부를 형성되고, A first opening for communicating the outer space of the case and the first space, and a second opening for communicating the outer space of the case with the second space are formed, 상기 제2개구부는, 상기 제1개구부 상측에 배치되는 공기조화기의 실내기.The second opening is an indoor unit of an air conditioner disposed above the first opening. 제 6 항에 있어서,The method of claim 6, 상기 제2개구부는, 상기 제1공간과 구별되는 상기 먼지센서 장착부의 상측으로 개구되는 공기조화기의 실내기.The second opening, the indoor unit of the air conditioner is opened to the upper side of the dust sensor mounting portion that is distinct from the first space. 제 5 항에 있어서,The method of claim 5, 상기 하우징에는,In the housing, 상기 먼지센서 장착부와 상기 제1공간을 구획하고, 상기 먼지센서 흡입구 및 먼지센서 토출구가 형성되는 부분에서 흡입연통홀과 토출연통홀이 형성되는 격벽을 포함하는 공기조화기의 실내기.An indoor unit of an air conditioner comprising a partition wall in which the dust sensor mounting portion and the first space are partitioned, and a suction communication hole and a discharge communication hole are formed in a portion where the dust sensor suction port and the dust sensor discharge port are formed. 제 8 항에 있어서,The method of claim 8, 상기 하우징은,The housing, 상기 격벽과, 상기 제1개구부 사이에 배치되고, 상기 제1공간과 상기 제2공간을 연통시키는 그릴홀이 형성된 측면그릴을 포함하는 공기조화기의 실내기.An indoor unit of an air conditioner including a side grill disposed between the partition wall and the first opening, and having a grill hole communicating the first space and the second space. 제 6 항에 있어서,The method of claim 6, 복수의 연통홀을 형성하고, 상기 제1개구부와 상기 제2개구부를 커버하는 하우징커버를 더 포함하는 공기조화기의 실내기.The indoor unit of the air conditioner further comprising a housing cover forming a plurality of communication holes and covering the first opening and the second opening. 제 10 항에 있어서,The method of claim 10, 상기 하우징커버에는, 상기 케이스 외측공간과 상기 제1공간을 연통시키는 적어도 하나의 제1연통홀과, 상기 케이스 외측공간과 상기 제2공간을 연통시키는 적어도 하나의 제2연통홀이 형성되고, At least one first communication hole communicating the case outer space and the first space and at least one second communication hole communicating the case outer space and the second space are formed in the housing cover, 상기 제2연통홀은, 상기 제1연통홀의 상측에 배치되는 공기조화기의 실내기.The second communication hole is an indoor unit of an air conditioner disposed above the first communication hole. 제 1 항에 있어서,According to claim 1, 상기 먼지센서는, 상기 제1공간의 하측으로 먼지센서흡입구를 형성하고, 상기 제1공간의 상측으로 먼지센서토출구를 형성하며,The dust sensor forms a dust sensor suction port below the first space, and a dust sensor discharge port above the first space, 제1공간은, 상단부에서 하단부로 갈수록 면적이 넓어지는 형태를 가지는 공기조화기의 실내기.The first space is an indoor unit of an air conditioner having a shape in which an area is widened from an upper end to a lower end.
PCT/KR2020/000987 2019-01-21 2020-01-21 Indoor device of air conditioner Ceased WO2020153699A1 (en)

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CN201917012U (en) * 2011-01-17 2011-08-03 松下电器产业株式会社 Indoor unit of air conditioner
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