CN201772603U - Device for eliminating abnormal noises of electronic expansion valve for air conditioner - Google Patents
Device for eliminating abnormal noises of electronic expansion valve for air conditioner Download PDFInfo
- Publication number
- CN201772603U CN201772603U CN2010202795195U CN201020279519U CN201772603U CN 201772603 U CN201772603 U CN 201772603U CN 2010202795195 U CN2010202795195 U CN 2010202795195U CN 201020279519 U CN201020279519 U CN 201020279519U CN 201772603 U CN201772603 U CN 201772603U
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- expansion valve
- electronic expansion
- electric expansion
- air conditioner
- regulating device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
- Details Of Valves (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
A device for eliminating abnormal noises of an electronic expansion valve for an air conditioner comprises an electronic expansion valve connected in parallel with a pressure regulating device, wherein one end of the paralllely connected electronic expansion valve and the pressure regulating device is connected in series with a first capillary; and the pressure regulating device is a throttling control valve and a second capillary. The technical scheme provided by the utility model can really eliminate abnormal fizz noises produced by a frequency-changing air conditioner due to the work of the electronic expansion valve, further improve the noise quality at the running of an indoor machine of the frequency-changing air conditioner and enhance the comfort degree of the frequency-changing air conditioner. Moreover, the device produces a much more rational coolant flow to avoid undercooling and overheating, so the throttling effect of throttling devices, such as the electronic expansion valve and the like, is more outstanding. The device has the characteristics of simple and rational structure, flexibility of operation, low manufacturing cost and wide applicable scope.
Description
Technical field
The utility model relates to a kind of idle call electronics expansion valve, particularly a kind of device that is used to eliminate idle call electronics expansion valve abnormal sound.
Background technology
Idle call electronics expansion valve is the restricting element by electric pulse control, be mainly used in the frequency-conversion air-conditioning system, the type of drive of electric expansion valve is to be calculated by the parameter that sensor is collected by controller, send regulating command to drive plate, export the signal of telecommunication by drive plate to electric expansion valve, drive the action of electric expansion valve, the air conditioner coolant flow quantity of regulating and controlling, its time spent only needs several seconds from the full cut-off to the full-gear, it is fast to have response, flow adjustment range is wide, there are not advantages such as static degree of superheat phenomenon, and opening and closing characteristic and speed all can artificially set, can be by default various adjusting rule actions, realize the automatic adjusting of refrigerant flow, move to have good energy-conserving effect thereby frequency-conversion air-conditioning system is remained under the best operating mode, characteristics such as temperature control is accurate.At present, the refrigerating capacity of the frequency-conversion air-conditioning system of employing electric expansion valve and Energy Efficiency Ratio are higher more than 20% than the refrigerating capacity and the Energy Efficiency Ratio that adopt frequency-conversion air-conditioning system capillaceous.
The convertible frequency air-conditioner that has electric expansion valve is when creating comfortable living environment for people, also brought the noise pollution problem to people, the extraordinary noise that sends of electric expansion valve particularly, produce strong impulse to the user late into the night in quietness, influence people's physical and mental health, disturbed normal work of people and rest.
In order to eliminate the abnormal sound of " click clatter " that electric expansion valve sends in running, some manufacturer has done a little improvement, a kind of device that is used to eliminate idle call electronics expansion valve abnormal sound was disclosed on October 22nd, 2008 as Chinese patent literature CN 201137736Y, the device that abates the noise comprises sound proof housing and PE sponge, be sealed and coated on the electric expansion valve outside, the sound proof housing of plastic cement material of wherein insulating forms for wrapping via two one side of something of integrated through injection molding moulding, and by set many lock solid structure is interlocked on it; Be provided with the PE sponge and also glue on the inwall of sound proof housing.Though this device has been eliminated the abnormal sound of " click clatter " and reached indoor set, but can't eliminate the abnormal sound of a kind of more irksome " neighing " of producing by electric expansion valve.
Other has, Chinese patent literature CN 201293499Y discloses a kind of detachable air conditioner throttling arrangement on August 19th, 2009, comprises electric expansion valve and capillary, their series connection connections mutually, series connection back one end is communicated with outdoor heat exchanger, and the other end is communicated with stop valve; Perhaps, comprise electric expansion valve and capillary, their in parallel mutually connections, back in parallel one end is communicated with outdoor heat exchanger, and the other end is communicated with stop valve.This detachable air conditioner throttling arrangement is a target with the refrigerant circulation of efficient accurately adjusting and throttling convertible frequency air-conditioner, electric expansion valve and capillary connection in series or in parallel with each other, when refrigerant is regulated, can weaken to a certain extent the washing away or impact of refrigerant, reduced noise, but still there is the abnormal sound of " neighing " in this detachable air conditioner throttling arrangement in practice, and is particularly particularly evident when heating condition hangs down the wind shelves.The abnormal sound that is somebody's turn to do " neighing " has reduced the comfortableness quality of convertible frequency air-conditioner, has seriously influenced the satisfaction of user to convertible frequency air-conditioner.
The utility model content
The purpose of this utility model aims to provide the device that a kind of simple and reasonable, flexible operation, low, applied widely being used to of cost of manufacture are eliminated idle call electronics expansion valve abnormal sound, to overcome weak point of the prior art.
A kind of device that is used to eliminate idle call electronics expansion valve abnormal sound by this purpose design comprises electric expansion valve, it is characterized in that electric expansion valve is in parallel with pressure-regulating device.
End after described electric expansion valve and the pressure-regulating device parallel connection is connected with first capillary.
Described pressure-regulating device is a throttling control valve.Perhaps pressure-regulating device is second capillary.
The utility model is in parallel with pressure-regulating device with electric expansion valve, and to adjust the pressure difference value of electric expansion valve front and back, the force value that this pressure difference value can show by two Pressure gauges that are arranged on the electric expansion valve front and back converses; Simultaneously electric expansion valve is connected with capillary; Electric expansion valve is by the temperature difference to the degree of superheat or import and export air, the detection of multiple parameters such as return air temperature and setting value thereof and data acquisition, after microprocessor processes, send instruction, the aperture of control electric expansion valve, to satisfy the requirement of system loading, so the aperture of electric expansion valve changes when convertible frequency air-conditioner moves, pressure difference value before and after the electric expansion valve also changes, in order effectively to eliminate the abnormal sound that electric expansion valve " is neighed ", only need record the pressure difference value under the minimum aperture operating mode of electric expansion valve, regulator by parallel connection makes its value less than setting value, can eliminate the abnormal sound of " neighing ".
The technical scheme that the utility model provides can really realize eliminating convertible frequency air-conditioner because the abnormal sound of " the neighing " that produces during electric expansion valve work, and the noise quality when further improving the indoor set operation of convertible frequency air-conditioner improves the comfortableness of convertible frequency air-conditioner; Simultaneously, can produce more reasonably cold medium flux, avoid degree of supercooling, the degree of superheat, make throttling device restriction effect such as electric expansion valve more obvious.
It has simple and reasonable, flexible operation, cost of manufacture is low and advantage of wide range of application.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is the utility model first user mode structural representation.
Fig. 3 is the utility model second user mode structural representation.
Among the figure: 1 is first capillary, and 2 is electric expansion valve, and 3 is Pressure gauge, and 4 is pressure-regulating device, and 5 is throttling control valve, and 6 is second capillary.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 3, originally be used to eliminate the device of idle call electronics expansion valve abnormal sound, comprise electric expansion valve 2, this electric expansion valve 2 is in parallel with pressure-regulating device 4.End after electric expansion valve 2 and pressure-regulating device 4 parallel connections is connected with first capillary 1.
When liquid refrigerants flows to the passway of electric expansion valve 2, just during restriction,, the flow velocity of refrigerant is raise, pressure reduces, and the abnormal sound of " neighing " takes place easily because the area of restriction sharply shrinks.Test shows: when the front and back of restriction pressure difference hour, the abnormal sound that electric expansion valve produces is generally very faint even be as good as sound; And when the front and back pressure difference of restriction bigger, and the flow velocity of refrigerant just will produce the abnormal sound of " neighing " significantly when being increased to a degree.In order to eliminate the abnormal sound that electric expansion valve " is neighed " effectively, the front and back pressure difference of just necessary control orifice.
For back pressure that improves electric expansion valve 2 and the front and back pressure difference that reduces electric expansion valve 2, electric expansion valve 2 is connected with first capillary 1, and electric expansion valve 2 is in parallel with pressure-regulating device 4.
Pressure-regulating device 4 can be selected throttling control valve 5 for use, as Fig. 2, perhaps, can select second capillary 6 for use, see Fig. 3, to adjust the pressure difference value of electric expansion valve 2 front and back, the pressure difference value of these front and back can converse by the force value that electric expansion valve 2 former and later two Pressure gauges show, the back pressure value of while electron gain expansion valve 2, the parameter values such as pressure difference value of front and back, thereby the possibility that the abnormal sound of judgement " neighing " takes place.
Restriction for electric expansion valve 2 is littler, and then restriction effect is just more obvious, but this moment, the possibility of the abnormal sound of generation " neighing " is just more greatly.In other words, under the certain situation of flow, the area before and after the restriction is than littler, and the front and back pressure difference of electric expansion valve 2 is just bigger, just more is easy to generate the abnormal sound of " neighing ".
So only need under the minimum aperture operating mode when electric expansion valve 2 work, record the parameter value such as back pressure, front and back pressure difference of electric expansion valve 2, make factor sigma greater than setting value by the pressure-regulating device in parallel with it, then the abnormal sound of " neighing " promptly can be eliminated, wherein
p
1Surface pressure before the restriction of-electric expansion valve;
p
2Surface pressure behind the restriction of-electric expansion valve;
υ
2The mean flow rate of the restriction back of-electric expansion valve;
The density of ρ-liquid refrigerants.
Claims (4)
1. a device that is used to eliminate idle call electronics expansion valve abnormal sound comprises electric expansion valve (2), it is characterized in that electric expansion valve (2) is in parallel with pressure-regulating device (4).
2. the device that is used to eliminate idle call electronics expansion valve abnormal sound according to claim 1 is characterized in that the end after described electric expansion valve (2) and pressure-regulating device (4) parallel connection is connected with first capillary (1).
3. the device that is used to eliminate idle call electronics expansion valve abnormal sound according to claim 1 and 2 is characterized in that described pressure-regulating device (4) is a throttling control valve.
4. the device that is used to eliminate idle call electronics expansion valve abnormal sound according to claim 1 and 2 is characterized in that described pressure-regulating device (4) is second capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202795195U CN201772603U (en) | 2010-07-27 | 2010-07-27 | Device for eliminating abnormal noises of electronic expansion valve for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202795195U CN201772603U (en) | 2010-07-27 | 2010-07-27 | Device for eliminating abnormal noises of electronic expansion valve for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772603U true CN201772603U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202795195U Expired - Lifetime CN201772603U (en) | 2010-07-27 | 2010-07-27 | Device for eliminating abnormal noises of electronic expansion valve for air conditioner |
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| Country | Link |
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| CN (1) | CN201772603U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525211A (en) * | 2017-07-17 | 2017-12-29 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN107560073A (en) * | 2017-08-30 | 2018-01-09 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN109899927A (en) * | 2019-03-20 | 2019-06-18 | 广东美的暖通设备有限公司 | Reduce the method and device thereof of multi-line system refrigerant flow noise |
| CN112856866A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Throttling element, throttling liquid-separating assembly and air conditioner indoor unit |
| CN112856588A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
-
2010
- 2010-07-27 CN CN2010202795195U patent/CN201772603U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525211A (en) * | 2017-07-17 | 2017-12-29 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN107525211B (en) * | 2017-07-17 | 2020-06-30 | 青岛海尔空调器有限总公司 | Air conditioner and fault detection and processing method of supercooling pipe set of air conditioner |
| CN107560073A (en) * | 2017-08-30 | 2018-01-09 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN107560073B (en) * | 2017-08-30 | 2020-06-30 | 青岛海尔空调器有限总公司 | Air conditioner and fault detection and processing method of supercooling pipe set of air conditioner |
| CN109899927A (en) * | 2019-03-20 | 2019-06-18 | 广东美的暖通设备有限公司 | Reduce the method and device thereof of multi-line system refrigerant flow noise |
| CN112856866A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Throttling element, throttling liquid-separating assembly and air conditioner indoor unit |
| CN112856588A (en) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
| CN112856866B (en) * | 2021-01-22 | 2023-03-21 | 青岛海尔空调器有限总公司 | Throttling element, throttling liquid-separating assembly and air conditioner indoor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20140109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 FOSHAN, GUANGDONG PROVINCE TO: 528311 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140109 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |