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WO2018066767A2 - Dispositif de détection de niveau d'eau pour distributeur d'eau chaude et froide - Google Patents

Dispositif de détection de niveau d'eau pour distributeur d'eau chaude et froide Download PDF

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Publication number
WO2018066767A2
WO2018066767A2 PCT/KR2017/001311 KR2017001311W WO2018066767A2 WO 2018066767 A2 WO2018066767 A2 WO 2018066767A2 KR 2017001311 W KR2017001311 W KR 2017001311W WO 2018066767 A2 WO2018066767 A2 WO 2018066767A2
Authority
WO
WIPO (PCT)
Prior art keywords
water
housing
tank
sensor
water level
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/KR2017/001311
Other languages
English (en)
Korean (ko)
Other versions
WO2018066767A3 (fr
Inventor
유인수
권황언
김일송
최재원
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.)
Trust Network Co Ltd
Gootz Co Ltd
Original Assignee
Trust Network Co Ltd
Gootz 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
Application filed by Trust Network Co Ltd, Gootz Co Ltd filed Critical Trust Network Co Ltd
Priority to JP2017527932A priority Critical patent/JP2020500286A/ja
Publication of WO2018066767A2 publication Critical patent/WO2018066767A2/fr
Publication of WO2018066767A3 publication Critical patent/WO2018066767A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/005—Combined cooling and heating devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields

Definitions

  • the present invention relates to a water level detection device, and more particularly, the capacitance level sensor is installed in the water at the bottom of the tank is set without any problem in the capacitance change according to the flow rate changes without interfering with other components in the tank
  • the present invention relates to a water level detecting device for a cold / hot water machine that is easy to detect low water level.
  • a fluid tank containing a liquid (fluid) such as water is disposed in a device such as a water purifier, a bidet, a humidifier, an ice maker.
  • the fluid tank is provided with a level sensor to maintain a constant level of liquid, such as water filled therein.
  • the water level detecting device has a mechanical type and an electronic type.
  • the mechanical level sensor detects a liquid level by detecting a change in magnetic force as the float moves up and down by buoyancy of the liquid.
  • the mechanical type water level detection device includes a reed switch, a hall sensor, a magneto-resistance sensor, and the like.
  • the electronic type water level sensing device includes a capacitive sensor that senses a liquid level by sensing a change in capacitance.
  • the conventional mechanical type water level sensing device requires the mechanical operation of the float, the operation may be poor due to the mechanical structure of the float.
  • detection of the magnet becomes poor, so that the level of liquid contained in the fluid tank may not be accurately measured.
  • the fluid tank of the water purifier is made to be as smooth as possible so that no scratch is formed on the inner wall of the water purifier to minimize foreign substances caught on the inner wall of the fluid tank.
  • the design of the water purifier does not attempt to install the structure in the fluid tank as much as possible.
  • the level sensor of the mechanical type is a complicated structure that can be lifted and floated, the structure fixed to the fluid tank, etc., the size of the water level sensing device can be increased and the manufacturing cost can be increased.
  • the body is disposed to be exposed to the interior of the fluid tank containing the liquid in contact with the liquid or the air in accordance with the level of the fluid tank inside, the receiving space formed therein; And a capacitance sensing unit accommodated in the accommodation space of the body, wherein the capacitance value at the upper side and the capacitance value at the lower side change as the upper side and the lower side of the body come into contact with liquid or air, respectively.
  • the capacitance sensing unit compares the upper capacitance value with the lower capacitance value to turn the output signal ON or OFF.
  • a probe-type capacitive sensor is installed on the top or side of the tank to send a signal when the probe is submerged or exposed to water.
  • the demand for is increasing steadily, and research is being actively conducted.
  • the present invention has been made to improve the problems of the prior art as described above, the water level sensor installed in the water in the tank to prevent the detection of the water level in the tank by preventing interference between the equipped equipment floating in accordance with the quantity in the tank
  • An object of the present invention is to provide an easy water level sensor for cold and hot water.
  • Another object of the present invention is to provide a water level sensing device for a cold / hot water heater, which has a function of isolating a sensing rod of the water level sensing device from water while exposing a portion of the water level sensing device to the water tank to detect the quantity of water in the water tank.
  • the water level sensor for a cold / hot water machine for achieving the above object is a water level sensing device installed in a cold / hot water machine to sense an amount of water contained in a water tank, and is disposed to be exposed to the inside of the water tank containing water.
  • a housing in contact with water or in contact with air according to the amount of water therein, an opening at a lower portion thereof, and a through hole having a size set at a central portion at an upper portion thereof, and having an accommodation space therein;
  • a water level detecting unit coupled to the inside of the housing through an opening and a through hole of the housing to detect a quantity of water in the tank;
  • a controller installed at a portion of the cold / hot water heater and connected to the water level sensing unit and receiving information on the quantity of water in the water tank sensed by the water level sensing unit, wherein the housing includes an upper portion at the bottom of the water tank.
  • the water level detection unit the capacitive sensor coupled to the housing for detecting a change in capacitance generated by the contact of water and air in the tank;
  • the capacitive sensor penetrates through the lower portion and is detachably coupled to each other.
  • a coupling portion corresponding to the opening of the housing is formed at an upper portion thereof so that the capacitive sensor is detachably coupled to the opening of the housing and protrudes downwardly at the lower end thereof.
  • a sensor holder having at least one engaging portion bent inward to a set length of the sensor holder; And a female thread formed on an inner circumferential surface of the inner circumferential surface corresponding to a male screw thread formed on an outer circumferential surface of the sensor holder coupling part to be coupled to the coupling part of the sensor holder to close the housing and the sensor holder.
  • the capacitive sensor may further include: a rod-shaped sensing rod configured to detect a quantity of the inside of the tank by exposing the tank to a length set in a state of passing through the through hole of the housing; And a rod support fixed to the upper side of the sensor holder, the rod holder being detachably coupled to the sensor holder while the end of the sensor holder engaging portion is hooked to the lower end of the side surface.
  • the sealing member may further include a sealing ring coupled to the interposed state between the sensor holder to seal the water level sensing unit to the housing.
  • the housing may be manufactured using a synthetic resin.
  • the capacitive sensor has a size set so that the capacitance does not change in accordance with the flow rate can block the change of charge.
  • the water level sensor for a cold and hot water heater of the present invention may be installed in a vertical direction so that the water level detecting unit is directed upward from the bottom of the water tank, so that the water level in the water tank can be easily detected by preventing interference between the devices provided in the water tank. .
  • the capacitive sensor penetrates the housing and exposes a portion of the tank to isolate the capacitive sensor from the water through the housing, thereby detecting the amount of water in the tank.
  • FIG. 1 is a view showing a state in which a water level detection device for a cold and hot water heater according to an embodiment of the present invention is installed in a cold and hot water machine.
  • FIG. 2 is a perspective view of the water level sensor.
  • 3 is an exploded perspective view of the level sensor.
  • Figure 4 is a cross-sectional view of the cold water heater, the water level sensor is installed.
  • FIG. 1 is a view showing a state in which the water level sensor for a cold or hot water according to an embodiment of the present invention is installed in a cold water heater
  • Figure 2 is a perspective view of the water level sensor
  • Figure 3 is an exploded perspective view of the level sensor
  • Figure 4 Is a cross-sectional view in a cold and hot water machine in which the water level sensing device is installed.
  • the present invention As shown in Figure 1 to 4, installed in the cold and hot water level sensor for detecting the amount of water contained in the water tank, the present invention includes a housing 100, the water level detection unit 200 and the controller 300 can do.
  • the housing 100 is disposed to be exposed to the inside of the water tank (30) for receiving water in contact with water or air in accordance with the amount of water in the water tank 30, the lower portion of the opening 110 in the upper portion of the central portion
  • the through-hole 120 having a size set in is formed and may have a structure provided with a receiving space therein.
  • the housing 100 may be coupled and installed in the vertical direction from the bottom of the water tank 30 toward the top.
  • the water level detecting unit 200 may be coupled to the inside of the housing 100 through the opening 110 and the through hole 120 of the housing 100 to sense the quantity of water in the water tank 30.
  • the water level detection unit 200 may include a capacitive sensor 210, a sensor holder 220, and a sealing member 230.
  • the capacitive sensor 210 is coupled to the housing 100 and may detect a change in capacitance generated by contact of water and air in the water tank 30.
  • capacitive sensors in general, when a potential potential is applied to a conductor, a charge is accumulated, which is more effective when two or more different potential potentials are applied to two or more conductors than on a single conductor. That is, when a voltage (voltage is the difference in potential potential) is applied to the conductors at two or more, it can be observed better.
  • the capacitive sensor or the capacitive sensor is a sensor that quantifies the physical quantity by using the power storage effect.
  • the capacitive sensor 210 may block a change in charge with a size set so that the capacitance does not change according to the flow rate.
  • the capacitive sensor 210 may include a sensing rod 212 and a sensor body 214.
  • the sensing rod 212 is manufactured in the shape of a rod and has a length set to penetrate the through hole 120 of the housing 100 to be exposed to the water tank 30 to detect the quantity of water in the water tank.
  • the sensor body 214 may be detachably coupled to the sensor holder 220 while the sensing rod 212 is fixed to the top and the end of the sensor holder 220 engaging portion 224 is hooked to the lower end of the side surface.
  • the coupling between the rod support 214 and the sensor holder 220 may be coupled using bolts and nuts through bolt holes formed in the corresponding portions of the respective sensor bodies 214 and the sensor holder 220.
  • the sensor holder 220 is detachably coupled while the capacitive sensor 210 penetrates through the lower portion, and a coupling portion 222 corresponding to the opening 110 of the housing 100 is formed at an upper portion of the housing ( Removably coupled to the opening 110 of the 100, it may be a structure in which at least one engaging portion 224 is formed protruding downward and bent inward the set length of the end.
  • the coupling of the sensor holder 220 and the housing 100 is a female thread corresponding to the male thread formed along the outer circumferential surface of the bottom of the opening 110 of the housing 100 along the inner circumferential surface of the coupling portion 222 of the sensor holder 220.
  • the structure in which the coupling portion 222 of the sensor holder 220 and the opening 110 of the housing 100 is detachably screwed or along the outer circumferential surface of the opening 110 at the bottom of the opening 110 Form a rim protruding outward with a set length, and form a terry seating groove in a corresponding position of the inner peripheral surface of the coupling portion corresponding to the rim and the coupling portion 222 of the sensor holder 220 by using the pressure of the external force
  • the opening 110 of the housing 100 may be detachably coupled.
  • the sealing member 230 has a female thread formed on an inner circumferential surface in response to a male thread formed on an outer circumferential surface of the sensor holder 220 coupling part 222, thereby being coupled to the coupling part 222 of the sensor holder 220 while being coupled to the housing 100. ) And the sensor holder 220 can be in close contact.
  • the housing 100 may be installed in a vertical direction toward the top at a set portion of the bottom.
  • the controller 300 is connected to the water level detection unit 200 and may receive information about the water level in the water tank 30 detected by the water level detection unit 300.
  • the water level detecting device 10 of the present invention may further include a sealing ring 400.
  • the sealing ring 400 may be coupled in an interposed state between the sealing member 230 and the sensor holder 220 to seal the water level detecting unit 200 to the housing 100.
  • the housing 100 of the present invention can be manufactured using a durable and light synthetic resin.
  • Examples of the synthetic resin used as the material of the housing 100 include phenol resins, polyurethane resins, polyamide resins, acrylic resins, silicone resins, and the like.
  • sealing ring 400 may also be manufactured using a synthetic resin for the same reason as the housing 100.
  • the capacitive sensor 210 may be a PCB (PRINTED CIRCUIT BOARD) that reproduces the electrical conductor on the insulator by a suitable method by representing the electrical wiring connecting the circuit components based on the circuit design.
  • PCB PRINTED CIRCUIT BOARD
  • the worker vertically moves the housing 100 to which the water level sensing unit 200 is coupled in order to measure the amount of water in the water tank 30 from the bottom of the water tank 30 toward the top. While installing as it may be installed so that the end of the sensing rod 212 is exposed to the interior of the water tank (30).
  • the capacitive sensor 210 of the water level detection unit 200 connected to the controller 300 detects the quantity in the water tank 30 and transmits it to the controller 300 to inform the worker when to replace the bottled water bottle for cold and hot water. Can be.
  • the use of the water level sensor for a cold and hot water heater is a probe type capacitive sensor is installed on the top or side of the water tank in the past to send a signal when the probe is submerged or exposed to the floating parts in the water tank
  • the present invention is easy to detect the low water level by preventing the capacitive sensor 210 is installed in the water at the bottom of the water tank 30 so as not to interfere with the floating parts, the end of the capacitive sensor 210 Wrap the sensing rod 212 in a waterproof housing 100 of a set size leaving only the set length of the end to detect water only, and detects a change in capacitance for the quantity in the water tank 30 through the controller 300. Water level warnings can be sent to replace the bottle.
  • Water level detection device for cold and hot water of the present invention by installing the water level detection unit in the vertical direction from the bottom of the water tank to the upper side, it is easy to detect the water level in the water tank so as not to interfere between the devices provided in the water tank
  • the capacitive sensor penetrates into the housing and exposes a part to the tank, so that the capacitive sensor can be detected from the water through the housing, thereby detecting the quantity in the tank.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

La présente invention concerne un dispositif de détection de niveau d'eau installé dans un distributeur d'eau chaude et froide et qui détecte la quantité d'eau contenue dans un réservoir d'eau d'espace, le dispositif de détection de niveau d'eau comprenant : un boîtier disposé de sorte à être exposé à l'intérieur du réservoir d'eau qui reçoit l'eau, et qui se trouve en contact soit avec l'eau, soit avec l'air, en fonction de la quantité d'eau à l'intérieur du réservoir d'eau, une ouverture étant ménagée dans une partie inférieure du boîtier, un trou traversant d'une taille prédéfinie étant ménagé dans une partie centrale d'une partie supérieure du boîtier, et un espace de réception étant ménagé à l'intérieur du boîtier; une unité de détection de niveau d'eau insérée dans le boîtier et couplée au boîtier à travers l'ouverture et le trou traversant du boîtier, et qui détecte la quantité d'eau à l'intérieur du réservoir d'eau; et un dispositif de commande installé dans une partie du distributeur d'eau chaude et froide, connecté à l'unité de détection de niveau d'eau, et qui reçoit une transmission d'informations concernant la quantité d'eau à l'intérieur du réservoir d'eau, ladite quantité d'eau étant détectée par l'unité de détection de niveau d'eau. Le boîtier est installé de manière à être couplé verticalement et orienté vers le haut depuis l'extrémité inférieure du réservoir d'eau, et l'unité de détection de niveau d'eau est installée verticalement de sorte à faire face vers le haut depuis l'extrémité inférieure du réservoir d'eau, ce qui permet d'empêcher une interférence entre les composants disposés dans le réservoir d'eau, de sorte que le niveau d'eau à l'intérieur du réservoir d'eau puisse être facilement détecté. En outre, un capteur de capacité traverse le boîtier et une partie de celui-ci est exposée vers le réservoir d'eau, ainsi la quantité d'eau à l'intérieur du réservoir d'eau peut être détectée tandis que le capteur de capacité est protégé de l'eau par le boîtier.
PCT/KR2017/001311 2016-10-06 2017-02-06 Dispositif de détection de niveau d'eau pour distributeur d'eau chaude et froide Ceased WO2018066767A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017527932A JP2020500286A (ja) 2016-10-06 2017-02-06 冷温水器用水位感知装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0129102 2016-10-06
KR1020160129102A KR20180038245A (ko) 2016-10-06 2016-10-06 냉온수기용 수위감지장치

Publications (2)

Publication Number Publication Date
WO2018066767A2 true WO2018066767A2 (fr) 2018-04-12
WO2018066767A3 WO2018066767A3 (fr) 2018-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/001311 Ceased WO2018066767A2 (fr) 2016-10-06 2017-02-06 Dispositif de détection de niveau d'eau pour distributeur d'eau chaude et froide

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Country Link
JP (1) JP2020500286A (fr)
KR (1) KR20180038245A (fr)
WO (1) WO2018066767A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112444027A (zh) * 2019-08-29 2021-03-05 青岛海尔电冰箱有限公司 制冰系统的分配器与具有该分配器的冰箱
CN114543928A (zh) * 2022-02-21 2022-05-27 孙中一 一种自洁式水位传感器及包含其的水箱

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102841425B1 (ko) * 2024-12-20 2025-08-01 명선해양산업 주식회사 유수식양식장 수조용 스마트 수위감지기

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4782506B2 (ja) * 2005-08-09 2011-09-28 日本特殊陶業株式会社 静電容量式センサ
KR101734192B1 (ko) * 2010-08-27 2017-05-12 코웨이 주식회사 수위감지장치
KR101228828B1 (ko) * 2010-10-26 2013-02-08 주식회사 이에스에스디 다단 수위감지 모듈
KR101355159B1 (ko) * 2012-06-29 2014-01-27 (주)유민에쓰티 수위감지장치
KR101437574B1 (ko) * 2012-12-05 2014-09-04 한대희 유량 수위 레벨 감지 센서

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112444027A (zh) * 2019-08-29 2021-03-05 青岛海尔电冰箱有限公司 制冰系统的分配器与具有该分配器的冰箱
CN114543928A (zh) * 2022-02-21 2022-05-27 孙中一 一种自洁式水位传感器及包含其的水箱

Also Published As

Publication number Publication date
KR20180038245A (ko) 2018-04-16
JP2020500286A (ja) 2020-01-09
WO2018066767A3 (fr) 2018-09-07

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