[go: up one dir, main page]

WO2016036119A1 - Centrifugal blower - Google Patents

Centrifugal blower Download PDF

Info

Publication number
WO2016036119A1
WO2016036119A1 PCT/KR2015/009211 KR2015009211W WO2016036119A1 WO 2016036119 A1 WO2016036119 A1 WO 2016036119A1 KR 2015009211 W KR2015009211 W KR 2015009211W WO 2016036119 A1 WO2016036119 A1 WO 2016036119A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
centrifugal blower
scroll casing
centrifugal
expansion pipe
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/KR2015/009211
Other languages
French (fr)
Korean (ko)
Inventor
김성진
심상구
박명진
김봉석
박찬정
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.)
Coway Co Ltd
Original Assignee
Coway Co Ltd
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
Priority claimed from KR1020150122827A external-priority patent/KR102412277B1/en
Application filed by Coway Co Ltd filed Critical Coway Co Ltd
Priority to CN201580047125.2A priority Critical patent/CN107002708B/en
Priority to AU2015312616A priority patent/AU2015312616B2/en
Priority to US15/508,203 priority patent/US10598190B2/en
Publication of WO2016036119A1 publication Critical patent/WO2016036119A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the present invention relates to a centrifugal blower, and more particularly, to a centrifugal blower with improved unbalance and noise in the discharged air.
  • a blower is used for an air cleaner, a fan, etc. industrially, it is used for an air conditioning system, various intake and exhaust systems, and the like.
  • the blowers may be classified into axial blowers, centrifugal blowers, and mixed flow blowers according to the characteristics of the flow through the impeller.
  • centrifugal blowers are applied to ordinary household air purifiers in which air flow is generated such that the suction flow is in the direction of the rotational axis or the discharge flow is in the direction perpendicular to the rotational axis.
  • such a centrifugal blower includes a centrifugal fan having a plurality of wings arranged in a circumferential direction, and a discharge port configured to surround the centrifugal fan and guide air discharged in the circumferential direction of the centrifugal fan to one side.
  • Scroll casing configured to surround the centrifugal fan and guide air discharged in the circumferential direction of the centrifugal fan to one side.
  • the centrifugal blower according to the related art has a problem in that noise due to air friction is generated due to an imbalance in the discharge flow at the discharge port of the scroll casing and the air volume is reduced.
  • the end of the discharge port of the scroll casing is formed in the form of expansion pipe in which the opening area is increased in order to diffuse air, the imbalance of the discharge flow is greatly generated due to the expansion effect.
  • an object of the present invention is to provide a centrifugal blower with a stable discharge flow.
  • the present invention is a centrifugal fan;
  • a scroll casing configured to surround the centrifugal fan, the air casing having at least one surface, an air discharge port at one side, and guide the air discharged from the centrifugal fan to the air discharge port;
  • An expansion pipe portion provided at the air discharge port and configured to have a cross-sectional area of a flow path extending in an air discharge direction;
  • a partition plate provided at the expansion pipe portion and disposed at an outer side of the air discharge port and disposed to extend in a flow direction of discharge air discharged from the air discharge port.
  • the centrifugal blower is provided.
  • a cutoff part is formed in one side of the air discharge port in the scroll casing, and the partition plate may be provided outside the scroll casing based on the cutoff part.
  • the partition plate may divide the flow path inside the expansion portion into two flow paths.
  • the partition plate may be disposed parallel to both sides of the scroll casing, or may be disposed perpendicular to both sides of the scroll casing.
  • the partition plate may be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan side.
  • the centrifugal fan is configured to suck air to both sides
  • the scroll casing may be provided with the air intake on both sides.
  • the discharge grill is mounted to the outlet of the expansion portion may be further included.
  • the partition plate may be coupled to the discharge grill.
  • the partition plate may have a protrusion projecting to the outside of the discharge grill.
  • a diffuser coupled to the outlet of the expansion pipe, and diffuses the air discharged from the expansion pipe may be further included.
  • FIG. 1 is a perspective view of a centrifugal blower according to an embodiment of the present invention.
  • FIG. 2 is a side view of the centrifugal blower shown in FIG. 1.
  • FIG. 2 is a side view of the centrifugal blower shown in FIG. 1.
  • FIG. 3 is a plan view of the centrifugal blower shown in FIG.
  • FIG. 4 is a cross-sectional view taken along line AA ′ of the centrifugal blower shown in FIG. 1.
  • FIG. 5 is a cross-sectional view taken along line B-B 'of the centrifugal blower shown in FIG. 1;
  • Figure 6 is a side cross-sectional view of the discharge grill and diffuser of the centrifugal blower shown in Figure 1 removed.
  • the centrifugal blower 100 includes a scroll casing 110, a centrifugal fan 120 and a partition plate 130, the scroll casing ( The discharge grill 140 provided in the expansion pipe 118 of the 110 and the diffuser 150 provided at the outlet of the expansion pipe 118 may be further included.
  • the scroll casing 110 is configured to surround the circumferential direction of the centrifugal fan 120 to be described later, to guide the air discharged in the circumferential direction of the centrifugal fan 120.
  • the scroll casing 110 may include an air inlet 112 on at least one surface thereof, and an air outlet 114 on one side of the circumferential direction of the centrifugal fan 120.
  • the scroll casing 110 may include an air suction port 112 on both sides corresponding to the centrifugal fan 120 which will be described later is a positive suction type.
  • the air discharged in the circumferential direction of the centrifugal fan 120 may be guided along the inner wall of the scroll casing 110 to be discharged to the outside through the air discharge port 114.
  • the air outlet 114 of the scroll casing 110 may be formed with an expansion portion 118 that gradually increases the cross-sectional area of the flow path in the discharge direction of the air.
  • the expansion pipe 118 may allow the discharged air discharged from the air discharge port 114 to be discharged in a wide range, and the negative pressure generated in the discharged air is reduced even when the discharge flow rate is large through the structure in which the flow path is expanded. have.
  • a cutoff part 119 may be formed at one side of the air discharge port 114.
  • the cutoff portion 119 is a concave portion formed at the joint portion of the scroll casing 110 and the expansion pipe 118.
  • the centrifugal fan 120 is provided inside the scroll casing 110 and may suck air in the rotational axis direction and discharge the air in the circumferential direction.
  • the centrifugal fan 120 is not particularly limited and may be configured as a conventional centrifugal blowing fan of various forms.
  • the centrifugal fan 120 may be of a double suction type that can suck air to both sides.
  • the double suction type centrifugal fan 120 has a larger amount of air suction than the single suction type, thereby increasing the air volume of the blower.
  • the dividing plate 130 is provided in the expansion pipe 118 and extends along the flow direction of the discharge air discharged from the air discharge port 114 to guide the discharge air.
  • the partition plate 130 may be provided at the expansion pipe 118, and may be disposed outside the air discharge port 114. In other words, the divider 130 may be provided outside the scroll casing 110 based on the cutoff part 119.
  • the divider 130 is disposed outside the scroll casing 110 and thus does not affect the volume inside the scroll casing 110.
  • the structure in which the partition plate 130 is provided inside the scroll casing 110 reduces the volume of the inside of the scroll casing 110 due to the space occupied by the partition plate 130, thereby reducing the air volume of the blower. Done.
  • the dividing plate 130 extends from one inner wall of the expansion pipe 118 to the other inner wall, thereby dividing the flow path inside the expansion pipe 118 into two flow paths.
  • the partition plate 130 may be disposed in the center of the width direction of the centrifugal fan 120, as shown in Figure 4, but is not limited to this, the width direction of the centrifugal fan 120 It can be arranged in various positions.
  • the divider 130 may be disposed parallel to both sides of the scroll casing 110 as shown in FIGS. 1 to 6.
  • the present invention is not limited thereto, and in another exemplary embodiment, the divider 130 may be disposed perpendicular to both sides of the scroll casing 110.
  • the plurality of divider 130 may be arranged in parallel with a plurality of intervals in the expansion unit 118, the partition plate 130 and the scroll casing (parallel to both sides of the scroll casing 110) ( Scroll casing 110 that is perpendicular to both sides of the 110 may be provided in a cross shape together.
  • the partition plate 130 may be configured to be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan 120 side, as shown in the partial enlarged view of FIG.
  • the tapered structure of the inner end of the splitter plate 130 minimizes the resistance area for the discharged air, thereby minimizing noise due to friction between the splitter plate 130 and the discharged air, and the discharged air from the splitter plate 130.
  • the discharge grill 140 is configured to be detachable at the outlet of the expansion pipe 118, and is a grid-like structure having a plurality of vent holes, and foreign matters into the scroll casing 110 through the expansion pipe 118. Inflow can be prevented.
  • the divider 130 may be coupled to the discharge grill 140.
  • the divider 130 may be integrally coupled to the discharge grill 140, or may be detachably coupled to the discharge grill 140.
  • the divider 130 does not need a separate support structure for the expansion pipe 118, it is supported by the discharge grill 140 and can be disposed in the expansion pipe 118.
  • the divider 130 may include a protrusion 132 protruding outward of the discharge grill 140 as shown in FIGS. 1, 4, and 5.
  • the protrusion 132 may be formed in a shape in which the body of the divider 130 extends to the outside of the discharge grill 140.
  • the protrusion 132 may minimize the formation of vortices on the outside of the discharge grill 140 after the air flowing on the surface of the partition plate 130 passes through the discharge grill 140. Through this, the flow of the discharged air can be further stabilized.
  • the diffuser 150 may be provided at the outlet of the expansion unit 118 as necessary.
  • the diffuser 150 may diffuse the air discharged from the expansion unit 118 to a large area of the room.
  • the centrifugal blower 100 stabilizes the flow of the discharged air through the partition plate 130 provided on the outside of the air discharge port 114, thereby eliminating the imbalance of the discharge flow and thereby The noise is reduced and the discharge air volume is improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A disclosed centrifugal blower comprises: a centrifugal fan; a scroll casing which is configured so as to surround the centrifugal fan, has an air inlet on at least one surface thereof, has an air outlet on one side thereof, and guides, to the air outlet, air discharged from the centrifugal fan; an expansion part which is provided at the air outlet and is configured such that the cross-sectional area of the flow path is expanded in the air discharge direction; and a dividing plate which is provided in the expansion part, is arranged at the outside of the air outlet and is arranged lengthwise along the flow direction of the air discharged from the air outlet.

Description

원심 송풍기Centrifugal blower

본 발명은 원심 송풍기에 관한 것으로, 더욱 상세하게는 토출되는 공기의 유동의 불균형과 소음이 개선된 원심 송풍기에 관한 것이다.The present invention relates to a centrifugal blower, and more particularly, to a centrifugal blower with improved unbalance and noise in the discharged air.

일반적으로 송풍기는 공기 청정기, 선풍기 등에 사용되고, 공업적으로는 공기 조화 시스템, 각종 흡배기 시스템 등에 사용된다.Generally, a blower is used for an air cleaner, a fan, etc. industrially, it is used for an air conditioning system, various intake and exhaust systems, and the like.

송풍기는 임펠러를 통과하는 유동의 특성에 따라 축류형 송풍기, 원심형 송풍기, 혼합류형 송풍기로 분류될 수 있다. The blowers may be classified into axial blowers, centrifugal blowers, and mixed flow blowers according to the characteristics of the flow through the impeller.

이 중에서, 원심형 송풍기는 흡입 유동이 회전축 방향이나 토출 유동이 회전축의 직각 방향이 되도록 공기 유동이 발생하는 것으로 보통의 가정용 공기 청정기에 적용된다. Among these, centrifugal blowers are applied to ordinary household air purifiers in which air flow is generated such that the suction flow is in the direction of the rotational axis or the discharge flow is in the direction perpendicular to the rotational axis.

원심형 송풍기에는 흡입 유동이 회전축의 일측에서 발생하는 단흡입 방식과 흡입 유동이 회전축의 양측에서 발생하는 양흡입 방식이 있다. In the centrifugal blower, there are a single suction method in which suction flow occurs on one side of the rotary shaft and a double suction method in which suction flow occurs on both sides of the rotary shaft.

일반적으로, 이러한 원심형 송풍기는 원주방향으로 배치되는 다수의 날개를 구비하는 원심팬과, 상기 원심팬를 감싸도록 구성되고 상기 원심팬의 원주방향으로 토출되는 공기를 가이드하여 일측으로 토출시키는 토출구를 구비하는 스크롤케이싱을 포함한다. In general, such a centrifugal blower includes a centrifugal fan having a plurality of wings arranged in a circumferential direction, and a discharge port configured to surround the centrifugal fan and guide air discharged in the circumferential direction of the centrifugal fan to one side. Scroll casing.

그러나, 종래의 기술에 의한 원심형 송풍기는 스크롤케이싱의 토출구에서 토출 유동의 불균형으로 인해 공기 마찰에 의한 소음이 발생하고 풍량이 감소하는 문제가 있다. However, the centrifugal blower according to the related art has a problem in that noise due to air friction is generated due to an imbalance in the discharge flow at the discharge port of the scroll casing and the air volume is reduced.

특히, 스크롤케이싱의 토출구의 끝단은 공기를 확산시키기 위해 개구면적이 증가되는 확관 형태로 이루어지는데, 확관효과에 기인하여 토출 유동의 불균형이 크게 발생하게 된다.In particular, the end of the discharge port of the scroll casing is formed in the form of expansion pipe in which the opening area is increased in order to diffuse air, the imbalance of the discharge flow is greatly generated due to the expansion effect.

본 발명은 상기와 같은 종래 기술의 문제점 중 적어도 일부를 해결하고자 안출된 것으로, 일 측면으로서, 토출 유동이 안정된 원심 송풍기를 제공하는 것을 목적으로 한다.The present invention has been made to solve at least some of the problems of the prior art as described above, and as an aspect, an object of the present invention is to provide a centrifugal blower with a stable discharge flow.

상기한 목적 중 적어도 일부를 달성하기 위한 일 측면으로서, 본 발명은 원심팬; 상기 원심팬을 둘러싸도록 구성되고, 적어도 일면에 공기흡입구를 구비하고, 일측에 공기토출구를 구비하며, 상기 원심팬에서 토출되는 공기를 상기 공기토출구로 가이드하는 스크롤케이싱; 상기 공기토출구에 구비되며, 공기의 토출 방향으로 유로의 단면적이 확장되는 형태로 구성된 확관부; 및 상기 확관부에 구비되어 상기 공기토출구의 외측에 배치되며, 상기 공기토출구에서 토출되는 토출공기의 유동방향을 따라 길게 배치되는 분할판;을 포함하는 원심 송풍기를 제공한다.일 실시예에서, 상기 스크롤케이싱에는 상기 공기토출구의 일측에 컷오프부(Cutoff)가 형성되고, 상기 분할판은 상기 컷오프부를 기준으로 상기 스크롤케이싱의 외측에 구비될 수 있다. As an aspect for achieving at least some of the above object, the present invention is a centrifugal fan; A scroll casing configured to surround the centrifugal fan, the air casing having at least one surface, an air discharge port at one side, and guide the air discharged from the centrifugal fan to the air discharge port; An expansion pipe portion provided at the air discharge port and configured to have a cross-sectional area of a flow path extending in an air discharge direction; And a partition plate provided at the expansion pipe portion and disposed at an outer side of the air discharge port and disposed to extend in a flow direction of discharge air discharged from the air discharge port. In one embodiment, the centrifugal blower is provided. A cutoff part is formed in one side of the air discharge port in the scroll casing, and the partition plate may be provided outside the scroll casing based on the cutoff part.

또한, 일 실시예에서, 상기 분할판은 상기 확관부 내부의 유로를 2개의 유로로 분할할 수 있다. In addition, in one embodiment, the partition plate may divide the flow path inside the expansion portion into two flow paths.

또한, 일 실시예에서, 상기 분할판은 상기 스크롤케이싱의 양면에 평행하게 배치될 수도 있고, 상기 스크롤케이싱의 양면에 수직하게 배치될 수도 있다.In addition, in one embodiment, the partition plate may be disposed parallel to both sides of the scroll casing, or may be disposed perpendicular to both sides of the scroll casing.

또한, 일 실시예에서, 상기 분할판은 상기 원심팬 측에 배치되는 내측 끝단으로 갈수록 폭이 좁아지도록 테이퍼질 수 있다.In addition, in one embodiment, the partition plate may be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan side.

또한, 일 실시예에서, 상기 원심팬은 양측으로 공기를 흡입할 수 있도록 구성되고, 상기 스크롤케이싱은 양면에 상기 공기흡입구를 구비할 수 있다.In addition, in one embodiment, the centrifugal fan is configured to suck air to both sides, the scroll casing may be provided with the air intake on both sides.

또한, 일 실시예에서, 상기 확관부의 출구에 장착되는 토출그릴이 더 포함될 수 있다.In addition, in one embodiment, the discharge grill is mounted to the outlet of the expansion portion may be further included.

여기서, 상기 분할판은 상기 토출그릴에 결합될 수도 있다.Here, the partition plate may be coupled to the discharge grill.

한편, 일 실시예에서, 상기 분할판은 상기 토출그릴의 외측으로 돌출된 돌출부를 구비할 수 있다.On the other hand, in one embodiment, the partition plate may have a protrusion projecting to the outside of the discharge grill.

또한, 일 실시예에서, 상기 확관부의 출구에 결합되며, 상기 확관부에서 토출되는 공기를 확산시키는 디퓨져(Diffuser)가 더 포함될 수도 있다.In addition, in one embodiment, a diffuser coupled to the outlet of the expansion pipe, and diffuses the air discharged from the expansion pipe may be further included.

이러한 구성을 갖는 본 발명의 일 실시예에 의하면, 공기토출구에 구비되는 분할판을 통해 토출공기의 유동을 안정화시켜, 토출 유동의 불균형을 해소하고 이로 인한 소음이 감소되며 토출 풍량이 향상된다는 효과를 얻을 수 있다.According to one embodiment of the present invention having such a configuration, by stabilizing the flow of the discharged air through the partition plate provided in the air discharge port, to solve the imbalance of the discharge flow, thereby reducing the noise and improve the discharge air volume You can get it.

도 1은 본 발명의 일 실시예에 따른 원심 송풍기의 사시도.1 is a perspective view of a centrifugal blower according to an embodiment of the present invention.

도 2는 도 1에 도시된 원심 송풍기의 측면도.FIG. 2 is a side view of the centrifugal blower shown in FIG. 1. FIG.

도 3은 도 1에 도시된 원심 송풍기의 평면도.3 is a plan view of the centrifugal blower shown in FIG.

도 4는 도 1에 도시된 원심 송풍기의 A-A'선에 따른 단면도.4 is a cross-sectional view taken along line AA ′ of the centrifugal blower shown in FIG. 1.

도 5는 도 1에 도시된 원심 송풍기의 B-B'선에 따른 단면도.5 is a cross-sectional view taken along line B-B 'of the centrifugal blower shown in FIG. 1;

도 6은 도 1에 도시된 원심 송풍기의 토출그릴 및 디퓨져가 제거된 상태의 측단면도.Figure 6 is a side cross-sectional view of the discharge grill and diffuser of the centrifugal blower shown in Figure 1 removed.

본 명세서에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 또한, 본 명세서에서 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Also, the singular forms in this specification include plural forms unless the context clearly indicates otherwise.

이하, 첨부한 도면을 참고로 하여 본 발명의 바람직한 실시예에 대하여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1 내지 도 6을 참조하여, 본 발명의 일 실시예에 따른 원심 송풍기에 대해서 살펴본다. 1 to 6, it looks at with respect to the centrifugal blower according to an embodiment of the present invention.

도 1 내지 도 6에 도시된 바와 같이, 본 발명의 일 실시예에 따른 원심 송풍기(100)는 스크롤케이싱(110), 원심팬(120) 및 분할판(130)을 포함하고, 상기 스크롤케이싱(110)의 확관부(118)에 구비되는 토출그릴(140)과, 확관부(118)의 출구에 구비되는 디퓨져(150)를 추가로 포함할 수 있다. 1 to 6, the centrifugal blower 100 according to an embodiment of the present invention includes a scroll casing 110, a centrifugal fan 120 and a partition plate 130, the scroll casing ( The discharge grill 140 provided in the expansion pipe 118 of the 110 and the diffuser 150 provided at the outlet of the expansion pipe 118 may be further included.

상기 스크롤케이싱(110)은 후술할 원심팬(120)의 원주방향 둘레를 감싸도록 구성되어, 원심팬(120)의 원주방향으로 토출되는 공기를 가이드할 수 있다. The scroll casing 110 is configured to surround the circumferential direction of the centrifugal fan 120 to be described later, to guide the air discharged in the circumferential direction of the centrifugal fan 120.

이러한 스크롤케이싱(110)은 적어도 일면에 공기흡입구(112)를 구비하고, 원심팬(120)의 원주방향 중 일측에 공기토출구(114)를 구비할 수 있다. The scroll casing 110 may include an air inlet 112 on at least one surface thereof, and an air outlet 114 on one side of the circumferential direction of the centrifugal fan 120.

일 예로, 스크롤케이싱(110)은 후술할 원심팬(120)이 양흡입 타입인 점에 대응하여 양면에 공기흡입구(112)를 구비할 수 있다.For example, the scroll casing 110 may include an air suction port 112 on both sides corresponding to the centrifugal fan 120 which will be described later is a positive suction type.

이러한 구성에서, 원심팬(120)의 원주방향으로 토출되는 공기는 스크롤케이싱(110)의 내벽을 따라 가이드되어 공기토출구(114)를 통해 외부로 토출될 수 있다. In this configuration, the air discharged in the circumferential direction of the centrifugal fan 120 may be guided along the inner wall of the scroll casing 110 to be discharged to the outside through the air discharge port 114.

일 실시예에서, 스크롤케이싱(110)의 공기토출구(114)에는 공기의 토출 방향으로 유로의 단면적이 점진적으로 증대되는 확관부(118)가 형성될 수 있다. In one embodiment, the air outlet 114 of the scroll casing 110 may be formed with an expansion portion 118 that gradually increases the cross-sectional area of the flow path in the discharge direction of the air.

확관부(118)는 공기토출구(114)에서 토출되는 토출공기가 넓은 범위로 토출되도록 할 수 있고, 유로가 확장되는 구조를 통해 토출 유량이 많은 경우에도 토출공기에 발생하는 부압이 저감되는 장점이 있다.The expansion pipe 118 may allow the discharged air discharged from the air discharge port 114 to be discharged in a wide range, and the negative pressure generated in the discharged air is reduced even when the discharge flow rate is large through the structure in which the flow path is expanded. have.

한편, 공기토출구(114)의 일측에는 컷오프부(Cutoff, 119)가 형성될 수 있다. Meanwhile, a cutoff part 119 may be formed at one side of the air discharge port 114.

상기 컷오프부(119)는 스크롤케이싱(110)과 확관부(118)의 이음부에 형성되는 오목한 부분이다.The cutoff portion 119 is a concave portion formed at the joint portion of the scroll casing 110 and the expansion pipe 118.

상기 원심팬(120)은 스크롤케이싱(110)의 내부에 구비되며, 회전축 방향으로 공기를 흡입하여 원주방향으로 토출시킬 수 있다. 이러한 원심팬(120)은 특별히 한정되지 않으며, 종래의 다양한 형태의 원심형 송풍팬으로 구성될 수 있다.The centrifugal fan 120 is provided inside the scroll casing 110 and may suck air in the rotational axis direction and discharge the air in the circumferential direction. The centrifugal fan 120 is not particularly limited and may be configured as a conventional centrifugal blowing fan of various forms.

일 실시예에서, 원심팬(120)은 양측으로 공기를 흡입할 수 있는 양흡입 타입으로 구성될 수 있다. 양흡입 타입의 원심팬(120)은 단흡입 타입에 비해 공기흡입량이 많으므로 송풍기의 풍량이 증대된다.In one embodiment, the centrifugal fan 120 may be of a double suction type that can suck air to both sides. The double suction type centrifugal fan 120 has a larger amount of air suction than the single suction type, thereby increasing the air volume of the blower.

상기 분할판(130)은 확관부(118)에 구비되며, 공기토출구(114)에서 토출되는 토출공기의 유동방향을 따라 길게 연장형성되어 토출공기를 가이드할 수 있다.The dividing plate 130 is provided in the expansion pipe 118 and extends along the flow direction of the discharge air discharged from the air discharge port 114 to guide the discharge air.

분할판(130)은 확관부(118)에 구비되되, 공기토출구(114)의 외측에 배치될 수 있다. 다시 말해, 분할판(130)은 컷오프부(119)를 기준으로 스크롤케이싱(110)의 외측에 구비될 수 있다. The partition plate 130 may be provided at the expansion pipe 118, and may be disposed outside the air discharge port 114. In other words, the divider 130 may be provided outside the scroll casing 110 based on the cutoff part 119.

이러한 구조에서, 분할판(130)은 스크롤케이싱(110)의 외부에 배치되므로, 스크롤케이싱(110) 내부의 체적에 영향을 주지 않는다.In this structure, the divider 130 is disposed outside the scroll casing 110 and thus does not affect the volume inside the scroll casing 110.

참고로, 분할판(130)이 스크롤케이싱(110)의 내부에 구비되는 구조는 분할판(130)이 차지하는 공간으로 인해 스크롤케이싱(110)의 내부의 체적이 감소하게 되어, 송풍기의 풍량이 감소하게 된다. For reference, the structure in which the partition plate 130 is provided inside the scroll casing 110 reduces the volume of the inside of the scroll casing 110 due to the space occupied by the partition plate 130, thereby reducing the air volume of the blower. Done.

이러한 분할판(130)은 확관부(118)의 일측 내벽에서 타측 내벽까지 연장형성되어, 확관부(118) 내부의 유로를 2개의 유로로 분할할 수 있다. 또한, 일 실시예에서, 분할판(130)은 도 4에 도시된 바와 같이 원심팬(120)의 폭방향의 중앙에 배치될 수도 있으나, 이에 한정되는 것은 아니며, 원심팬(120)의 폭방향으로 다양한 위치에 배치될 수 있다.The dividing plate 130 extends from one inner wall of the expansion pipe 118 to the other inner wall, thereby dividing the flow path inside the expansion pipe 118 into two flow paths. In addition, in one embodiment, the partition plate 130 may be disposed in the center of the width direction of the centrifugal fan 120, as shown in Figure 4, but is not limited to this, the width direction of the centrifugal fan 120 It can be arranged in various positions.

한편, 일 실시예에서, 분할판(130)은 도 1 내지 도 6에 도시된 바와 같이 스크롤케이싱(110)의 양면에 평행하게 배치될 수 있다. Meanwhile, in one embodiment, the divider 130 may be disposed parallel to both sides of the scroll casing 110 as shown in FIGS. 1 to 6.

다만, 이에 한정되는 것은 아니며, 다른 일 실시예에서, 분할판(130)은 스크롤케이싱(110)의 양면에 수직하게 배치될 수도 있다.However, the present invention is not limited thereto, and in another exemplary embodiment, the divider 130 may be disposed perpendicular to both sides of the scroll casing 110.

또한, 도시되지는 않았지만, 분할판(130)은 확관부(118)에 복수개가 간격을 가지고 평행하게 배치될 수도 있고, 스크롤케이싱(110)의 양면에 평행한 분할판(130)과 스크롤케이싱(110)의 양면에 수직한 스크롤케이싱(110)이 함께 십자형태를 이루며 구비될 수도 있다.In addition, although not shown, the plurality of divider 130 may be arranged in parallel with a plurality of intervals in the expansion unit 118, the partition plate 130 and the scroll casing (parallel to both sides of the scroll casing 110) ( Scroll casing 110 that is perpendicular to both sides of the 110 may be provided in a cross shape together.

또한, 일 실시예에서, 분할판(130)은 도 4의 부분 확대도에 도시된 바와 같이 원심팬(120)측에 배치되는 내측 끝단으로 갈수록 폭이 좁아지도록 테이퍼지게 구성될 수 있다.In addition, in one embodiment, the partition plate 130 may be configured to be tapered so that the width becomes narrower toward the inner end disposed on the centrifugal fan 120 side, as shown in the partial enlarged view of FIG.

이와 같이, 분할판(130)의 내측 끝단이 테이퍼진 구조는 토출공기에 대한 저항면적이 최소화되어 분할판(130)과 토출공기 간의 마찰에 의한 소음이 최소화되고, 토출공기가 분할판(130)의 양면으로 원활하게 유동할 수 있다는 장점이 있다.As such, the tapered structure of the inner end of the splitter plate 130 minimizes the resistance area for the discharged air, thereby minimizing noise due to friction between the splitter plate 130 and the discharged air, and the discharged air from the splitter plate 130. There is an advantage that can flow smoothly to both sides of.

상기 토출그릴(140)은 확관부(118)의 출구에 탈착 가능하도록 구성되며, 다수의 통기구멍을 구비하는 격자형태의 구조물로서, 이물질이 확관부(118)를 통해 스크롤케이싱(110) 내부로 유입되는 것을 방지할 수 있다.The discharge grill 140 is configured to be detachable at the outlet of the expansion pipe 118, and is a grid-like structure having a plurality of vent holes, and foreign matters into the scroll casing 110 through the expansion pipe 118. Inflow can be prevented.

일 실시예에서, 상기 분할판(130)은 토출그릴(140)에 결합될 수 있다. 이때, 분할판(130)은 토출그릴(140)에 일체로 결합될 수도 있고, 토출그릴(140)과 분리가능하게 결합될 수도 있다.In one embodiment, the divider 130 may be coupled to the discharge grill 140. In this case, the divider 130 may be integrally coupled to the discharge grill 140, or may be detachably coupled to the discharge grill 140.

이를 통해, 분할판(130)은 확관부(118) 에 별도의 지지구조를 필요로 하지 않고, 토출그릴(140)에 지지되며 확관부(118)에 배치될 수 있게 된다. Through this, the divider 130 does not need a separate support structure for the expansion pipe 118, it is supported by the discharge grill 140 and can be disposed in the expansion pipe 118.

한편, 일 실시예에서, 분할판(130)은 도 1, 도 4 및 도 5에 도시된 바와 같이 토출그릴(140)의 외측으로 돌출된 돌출부(132)를 구비할 수 있다. Meanwhile, in one embodiment, the divider 130 may include a protrusion 132 protruding outward of the discharge grill 140 as shown in FIGS. 1, 4, and 5.

일 실시예에서, 돌출부(132)는 분할판(130)의 몸체가 토출그릴(140)의 외측으로 연장된 형태로 형성될 수 있다.In one embodiment, the protrusion 132 may be formed in a shape in which the body of the divider 130 extends to the outside of the discharge grill 140.

이러한 돌출부(132)는 분할판(130)의 표면을 타고 유동하는 공기가 토출그릴(140)을 통과한 후 토출그릴(140)의 외측에서 와류를 형성하는 것을 최소화할 수 있다. 이를 통해, 토출공기의 유동이 더욱 안정될 수 있게 된다.The protrusion 132 may minimize the formation of vortices on the outside of the discharge grill 140 after the air flowing on the surface of the partition plate 130 passes through the discharge grill 140. Through this, the flow of the discharged air can be further stabilized.

상기 디퓨져(150)는 필요에 따라 확관부(118)의 출구에 구비될 수 있다. The diffuser 150 may be provided at the outlet of the expansion unit 118 as necessary.

이러한 디퓨져(150)는 확관부(118)에서 토출되는 공기를 실내의 넓은 영역으로 확산시킬 수 있다. The diffuser 150 may diffuse the air discharged from the expansion unit 118 to a large area of the room.

이와 같은 본 발명의 일 실시예에 따른 원심 송풍기(100)는 공기토출구(114)의 외측에 구비되는 분할판(130)를 통해 토출공기의 유동을 안정화시켜, 토출 유동의 불균형을 해소하고 이로 인한 소음이 감소되며 토출 풍량이 향상된다는 장점이 있다.The centrifugal blower 100 according to the embodiment of the present invention stabilizes the flow of the discharged air through the partition plate 130 provided on the outside of the air discharge port 114, thereby eliminating the imbalance of the discharge flow and thereby The noise is reduced and the discharge air volume is improved.

본 발명은 특정한 실시예에 관하여 도시하고 설명하였지만, 당업계에서 통상의 지식을 가진 자라면 이하의 특허청구범위에 기재된 본 발명의 사상 및 영역을 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 밝혀두고자 한다.While the invention has been shown and described with respect to particular embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as set forth in the claims below. I want to make it clear.

Claims (11)

원심팬;Centrifugal fan; 상기 원심팬을 둘러싸도록 구성되고, 적어도 일면에 공기흡입구를 구비하고, 일측에 공기토출구를 구비하며, 상기 원심팬에서 토출되는 공기를 상기 공기토출구로 가이드하는 스크롤케이싱;A scroll casing configured to surround the centrifugal fan, the air casing having at least one surface, an air discharge port at one side, and guide the air discharged from the centrifugal fan to the air discharge port; 상기 공기토출구에 구비되며, 공기의 토출 방향으로 유로의 단면적이 확장되는 형태로 구성된 확관부; 및An expansion pipe portion provided at the air discharge port and configured to have a cross-sectional area of a flow path extending in an air discharge direction; And 상기 확관부에 구비되어 상기 공기토출구의 외측에 배치되며, 상기 공기토출구에서 토출되는 토출공기의 유동방향을 따라 길게 배치되는 분할판;A partition plate provided at the expansion pipe part and disposed at an outer side of the air discharge port and disposed to extend in a flow direction of discharge air discharged from the air discharge port; 을 포함하는 원심 송풍기.Centrifugal blower comprising a. 제1항에 있어서,The method of claim 1, 상기 스크롤케이싱에는 상기 공기토출구의 일측에 컷오프(Cutoff)부가 형성되고, The scroll casing is formed with a cutoff portion on one side of the air discharge port, 상기 분할판은 상기 컷오프부를 기준으로 상기 스크롤케이싱의 외측에 구비되는 원심 송풍기.The divider is a centrifugal blower provided on the outer side of the scroll casing on the basis of the cut off portion. 제1항에 있어서,The method of claim 1, 원심 송풍기Centrifugal blower 상기 분할판은 상기 확관부 내부의 유로를 2개의 유로로 분할하는 원심 송풍기.The partition plate is a centrifugal blower for dividing the flow path inside the expansion pipe into two flow paths. 제2항에 있어서,The method of claim 2, 상기 분할판은 상기 스크롤케이싱의 양면에 평행하게 배치되는 것을 특징으로 하는 원심 송풍기.Centrifugal blower characterized in that the partition plate is disposed parallel to both sides of the scroll casing. 제2항에 있어서,The method of claim 2, 상기 분할판은 상기 스크롤케이싱의 양면에 수직하게 배치되는 것을 특징으로 하는 원심 송풍기.Centrifugal blower characterized in that the partition plate is disposed perpendicular to both sides of the scroll casing. 제2항에 있어서,The method of claim 2, 상기 분할판은 상기 원심팬 측에 배치되는 내측 끝단으로 갈수록 폭이 좁아지도록 테이퍼진 것을 특징으로 하는 원심 송풍기.The divider is tapered so that the width is narrowed toward the inner end disposed on the centrifugal fan side. 제1항에 있어서,The method of claim 1, 상기 원심팬은 양측으로 공기를 흡입할 수 있도록 구성되고,The centrifugal fan is configured to suck air to both sides, 상기 스크롤케이싱은 양면에 상기 공기흡입구를 구비하는 원심 송풍기.The scroll casing is a centrifugal blower having the air intake on both sides. 제1항에 있어서,The method of claim 1, 상기 확관부의 출구에 장착되는 토출그릴을 더 포함하는 것을 특징으로 하는 원심 송풍기.Centrifugal blower further comprises a discharge grill mounted to the outlet of the expansion pipe. 제8항에 있어서,The method of claim 8, 상기 분할판은 상기 토출그릴에 결합되는 것을 특징으로 하는 원심 송풍기.The splitter blower is coupled to the discharge grill. 제8항에 있어서,The method of claim 8, 상기 분할판은 상기 토출그릴의 외측으로 돌출된 돌출부를 구비하는 것을 특징으로 하는 원심 송풍기.The partition plate has a centrifugal blower characterized in that it has a protrusion projecting to the outside of the discharge grill. 제1항에 있어서,The method of claim 1, 상기 확관부의 출구에 결합되며, 상기 확관부에서 토출되는 공기를 확산시키는 디퓨져(Diffuser)를 더 포함하는 원심 송풍기.A centrifugal blower coupled to the outlet of the expansion pipe, further comprising a diffuser for diffusing air discharged from the expansion pipe.
PCT/KR2015/009211 2014-09-03 2015-09-02 Centrifugal blower Ceased WO2016036119A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580047125.2A CN107002708B (en) 2014-09-03 2015-09-02 Centrifugal blower
AU2015312616A AU2015312616B2 (en) 2014-09-03 2015-09-02 Centrifugal blower
US15/508,203 US10598190B2 (en) 2014-09-03 2015-09-02 Centrifugal blower

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140117064 2014-09-03
KR10-2014-0117064 2014-09-03
KR1020150122827A KR102412277B1 (en) 2014-09-03 2015-08-31 Centrifugal fan
KR10-2015-0122827 2015-08-31

Publications (1)

Publication Number Publication Date
WO2016036119A1 true WO2016036119A1 (en) 2016-03-10

Family

ID=55440094

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/009211 Ceased WO2016036119A1 (en) 2014-09-03 2015-09-02 Centrifugal blower

Country Status (1)

Country Link
WO (1) WO2016036119A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351857A (en) * 2016-10-17 2017-01-25 西安科技大学 Novel dust removing centrifugal fan
CN107503958A (en) * 2017-09-22 2017-12-22 杭州德意电器股份有限公司 A kind of centrifugal blower fan system for range hood
CN110017302A (en) * 2018-01-10 2019-07-16 青岛海尔智慧厨房电器有限公司 Fan and range hood
CN111197597A (en) * 2018-11-20 2020-05-26 珠海格力电器股份有限公司 Centrifugal fan, centrifugal fan assembly and air conditioner with centrifugal fan assembly
WO2024192909A1 (en) * 2023-03-23 2024-09-26 广东美的环境电器制造有限公司 Machine head mechanism and fan device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173899A (en) * 1992-12-04 1994-06-21 Toshiba Ave Corp Air conditioner
KR100657528B1 (en) * 2005-02-03 2006-12-14 엘지전자 주식회사 Centrifugal Fan for Ventilation
KR20090059234A (en) * 2007-12-06 2009-06-11 삼성전자주식회사 Blower and air conditioner having same
KR20120054917A (en) * 2010-11-22 2012-05-31 덕산공조기계주식회사 The fan of diffusion model
KR101140708B1 (en) * 2004-12-31 2012-07-02 삼성전자주식회사 Blowing Apparatus for Air Conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06173899A (en) * 1992-12-04 1994-06-21 Toshiba Ave Corp Air conditioner
KR101140708B1 (en) * 2004-12-31 2012-07-02 삼성전자주식회사 Blowing Apparatus for Air Conditioner
KR100657528B1 (en) * 2005-02-03 2006-12-14 엘지전자 주식회사 Centrifugal Fan for Ventilation
KR20090059234A (en) * 2007-12-06 2009-06-11 삼성전자주식회사 Blower and air conditioner having same
KR20120054917A (en) * 2010-11-22 2012-05-31 덕산공조기계주식회사 The fan of diffusion model

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351857A (en) * 2016-10-17 2017-01-25 西安科技大学 Novel dust removing centrifugal fan
CN107503958A (en) * 2017-09-22 2017-12-22 杭州德意电器股份有限公司 A kind of centrifugal blower fan system for range hood
CN110017302A (en) * 2018-01-10 2019-07-16 青岛海尔智慧厨房电器有限公司 Fan and range hood
CN111197597A (en) * 2018-11-20 2020-05-26 珠海格力电器股份有限公司 Centrifugal fan, centrifugal fan assembly and air conditioner with centrifugal fan assembly
WO2024192909A1 (en) * 2023-03-23 2024-09-26 广东美的环境电器制造有限公司 Machine head mechanism and fan device

Similar Documents

Publication Publication Date Title
WO2014148793A1 (en) Centrifugal fan and air conditioner having the same
WO2016036119A1 (en) Centrifugal blower
KR102412277B1 (en) Centrifugal fan
WO2013058494A1 (en) Sirocco fan and air conditioner having same
CN106730203B (en) Noise reduction device for breathing machine and breathing machine
WO2015084030A1 (en) Blower and outdoor unit of air conditioner comprising same
WO2014069861A1 (en) Propeller fan and air conditioner having the same
WO2015093739A1 (en) Multi-volute sirocco fan
CN114616426B (en) Diffuser, diffuser assembly and air conditioner having the diffuser
CN108180547A (en) Air conditioner room unit
WO2015147461A1 (en) Centrifugal fan
WO2013183899A1 (en) Vortex-type local exhaust device comprising swirler
WO2016195371A1 (en) Turbo fan and air conditioner having the same
WO2022102969A1 (en) Air conditioner
FI96238C (en) Ventilation device for simultaneous entry and exit of air into room spaces
WO2013141511A1 (en) Structure for preventing air leakage and air cleaner having the same
WO2018169316A1 (en) Cooling fan and seat cooling device comprising same
CN206593224U (en) A kind of air purifier
WO2015178735A1 (en) Duct ventilation apparatus
WO2015020296A1 (en) Blowing apparatus
WO2010104329A2 (en) Ventilation apparatus using an air curtain, and blower fan
WO2019083208A1 (en) Method for installing blower fan and blower apparatus using blower fan
WO2024122769A1 (en) Ventilation apparatus
JP4600176B2 (en) Branch chamber and ventilator
WO2015147460A1 (en) Centrifugal fan

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15838866

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 15508203

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2015312616

Country of ref document: AU

Date of ref document: 20150902

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 15838866

Country of ref document: EP

Kind code of ref document: A1