CN201945102U - Electronic expansion valve of refrigeration system - Google Patents
Electronic expansion valve of refrigeration system Download PDFInfo
- Publication number
- CN201945102U CN201945102U CN2010206574399U CN201020657439U CN201945102U CN 201945102 U CN201945102 U CN 201945102U CN 2010206574399 U CN2010206574399 U CN 2010206574399U CN 201020657439 U CN201020657439 U CN 201020657439U CN 201945102 U CN201945102 U CN 201945102U
- Authority
- CN
- China
- Prior art keywords
- valve body
- temperature sensor
- refrigeration system
- electronic expansion
- expansion valve
- 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.)
- Expired - Fee Related
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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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- Temperature-Responsive Valves (AREA)
Abstract
The utility model relates to an electronic expansion valve of a refrigeration system, which comprises a valve body, wherein the middle of the valve body is provided with a valve core, a temperature sensor which is arranged on a communicating pipeline of refrigerants is connected with the valve core. The electronic expansion valve of the refrigeration system is characterized in that the upper portion of the valve body is provided with a magnet, the inner side of the magnet is provided with a torque motor, and the lower side of the torque motor is sequentially provided with a baffle and a bourdon tube. The two sides of the baffle are provided with nozzles, the lower side of the valve core is provided with an oil filter, the two sides of the oil filter are provided with throttle orifices, and the bottom of the valve body is provided with an evaporator inlet and an evaporator outlet. The temperature sensor which is arranged on an air-return pipe of a refrigerating compressor is connected with the torque motor in electric mode through a control unit. The electronic expansion valve of the refrigeration system is convenient in installation, can accurately control the flow of the refrigerants, and enables the refrigeration system to have a good refrigeration effect.
Description
Technical field
The utility model relates to the expansion valve technical field, especially a kind of electronic expansion valve that is applicable to equipment such as air-conditioning, freezer, compressed air freezing type drier, Cool-water Machine for Industry.
Background technology
At present, the expansion valve of refrigeration system is connected with temperature sensor by a superfine copper pipe, but this copper pipe frangibility, thereby it is dead that expansion valve is closed, also have, sealing ring is contained at the spool position of expansion valve, when with gas welding expansion valve being installed, must wrap valve body with wet towel, in order to avoid Yin Gaowen damages sealing ring, do just cumbersomely like this, in addition, temperature sensor is placed on the outlet of evaporimeter, detected temperature signal inaccuracy, thereby the also inaccuracy of degree of opening of control expansion valve, so that can not better controlled flow to the flow of the cold-producing medium of evaporimeter, so refrigeration is bad.
The utility model content
The technical problems to be solved in the utility model is: in order to solve the aforesaid drawbacks with not enough, provide a kind of electronic expansion valve.
The technical scheme that its technical problem that solves the utility model adopts is: the refrigeration system electronic expansion valve, comprise valve body, the valve body middle part is a spool, temperature sensor links to each other with valve body, temperature sensor is positioned on the circulation pipeline of cold-producing medium, it is characterized in that valve body top is magnet, the magnet inboard is a torque-motor, the torque-motor downside is baffle plate successively, bourdon tube, the baffle plate both sides are nozzles, the downside of spool is an oil filter, the both sides of oil filter are throttle orifices, the valve body bottom is evaporator and evaporator outlet, and temperature sensor is positioned on the refrigeration compressor muffler, and temperature sensor is electrically connected with torque-motor by control module.
Described control module comprises signal amplifier circuit, contains the A/D change-over circuit of retainer, single-chip microcomputer, D/A change-over circuit, power output circuit, and control module is positioned on the pcb board.
Described temperature sensor links to each other with signal amplifier circuit, and torque-motor links to each other with power output circuit.
Technique effect of the present utility model is: it has overcome the shortcoming of the thin copper pipe frangibility of conventional expanded valve, have easy for installation, temperature sensor accuracy of detection height, better controlled enters the flow of the cold-producing medium of evaporimeter, make cold-producing medium fully evaporation in evaporimeter, thereby make refrigeration reach best.
Description of drawings
Fig. 1 is a vertical section of the present utility model schematic diagram.
Fig. 2 is a circuit diagram of the present utility model.
Fig. 3 is control system figure of the present utility model.
Among the figure 1, the refrigeration compressor muffler, 2, temperature sensor, 3, pcb board, 4, valve body, 5, torque-motor, 6, magnet, 7, baffle plate, 8, nozzle, 9, bourdon tube, 10, spool, 11, oil filter, 12, evaporator, 13, evaporator outlet, 14, throttle orifice.
The specific embodiment
Now in conjunction with the accompanying drawings the utility model is described in further detail.
As shown in Figure 1, the refrigeration system electronic expansion valve, comprise valve body (4), valve body (4) middle part is spool (10), temperature sensor (2) links to each other with valve body (4), valve body (4) top is magnet (6), magnet (6) inboard is torque-motor (5), torque-motor (5) downside is baffle plate (7) successively, bourdon tube (9), baffle plate (7) both sides are nozzle (8), the downside of spool (10) is oil filter (11), the both sides of oil filter (11) are throttle orifice (14), valve body (4) bottom is evaporator (12) and evaporator outlet (13), and temperature sensor (2) is positioned on the refrigeration compressor muffler (1), and temperature sensor (2) is electrically connected with torque-motor (5) by control module.
Control module comprises signal amplifier circuit, contains the A/D change-over circuit of retainer, single-chip microcomputer, D/A change-over circuit, power output circuit, and control module is positioned on the pcb board (3).
Temperature sensor links to each other with signal amplifier circuit, and torque-motor links to each other with power output circuit.
In the time of work, temperature signal is detected by temperature sensor, amplify through signal amplifier, carry out the A/D conversion, the final single-chip microcomputer that arrives, single-chip microcomputer is judged through program, the signal that provides is changed through D/A, finally by power output circuit, gives torque-motor (5) direct current, torque-motor (5) rotates an angle, cause the right nozzle (8) uneven to the distance of baffle plate (7) to baffle plate (7) distance and leftmost nozzle (8), left and right sides pressure is also just uneven, and spool (10) is moved, deformation takes place in bourdon tube (9), produce an opposite effect power, with the balance of baffle plate (7), spool (10) stops, like this, the size of electric current is directly proportional with the open degree of spool (10).
When the open degree of spool (10) becomes big, the cold-producing medium that flows to evaporimeter is just many more, refrigeration compressor muffler (1) temperature is just low more, detect through temperature sensor (2), give single-chip microcomputer signal, single-chip microcomputer is judged through program, diminish for the electric current of torque-motor (5), the open degree of spool (10) is diminished, in a scope, change all the time, reach balance.
Claims (3)
1. refrigeration system electronic expansion valve, comprise valve body (4), valve body (4) middle part is spool (10), temperature sensor (2) links to each other with valve body (4), temperature sensor (2) is positioned on the circulation pipeline of cold-producing medium, it is characterized in that valve body (4) top is magnet (6), magnet (6) inboard is torque-motor (5), torque-motor (5) downside is baffle plate (7) successively, bourdon tube (9), baffle plate (7) both sides are nozzle (8), the downside of spool (10) is oil filter (11), the both sides of oil filter (11) are throttle orifice (14), valve body (4) bottom is evaporator (12) and evaporator outlet (13), and temperature sensor (2) is positioned on the refrigeration compressor muffler (1), and temperature sensor (2) is electrically connected with torque-motor (5) by control module.
2. refrigeration system electronic expansion valve according to claim 1, it is characterized in that, described control module comprises signal amplifier circuit, contains the A/D change-over circuit of retainer, single-chip microcomputer, D/A change-over circuit, power output circuit, and control module is positioned on the pcb board (3).
3. refrigeration system electronic expansion valve according to claim 1 is characterized in that, described temperature sensor (2) links to each other with signal amplifier circuit, and magnet (6) links to each other with power output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206574399U CN201945102U (en) | 2010-12-06 | 2010-12-06 | Electronic expansion valve of refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206574399U CN201945102U (en) | 2010-12-06 | 2010-12-06 | Electronic expansion valve of refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201945102U true CN201945102U (en) | 2011-08-24 |
Family
ID=44472442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206574399U Expired - Fee Related CN201945102U (en) | 2010-12-06 | 2010-12-06 | Electronic expansion valve of refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201945102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953390A (en) * | 2017-05-09 | 2020-04-03 | 浙江三花汽车零部件有限公司 | Throttling element, thermal management assembly, cooling system and throttling element manufacturing method |
| US11698146B2 (en) | 2017-05-09 | 2023-07-11 | Zhejiang Sanhua Automotive Components Co., Ltd. | Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve |
-
2010
- 2010-12-06 CN CN2010206574399U patent/CN201945102U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953390A (en) * | 2017-05-09 | 2020-04-03 | 浙江三花汽车零部件有限公司 | Throttling element, thermal management assembly, cooling system and throttling element manufacturing method |
| CN111255933A (en) * | 2017-05-09 | 2020-06-09 | 浙江三花汽车零部件有限公司 | Electronic expansion valve, thermal management assembly, cooling system and electronic expansion valve manufacturing method |
| US11698146B2 (en) | 2017-05-09 | 2023-07-11 | Zhejiang Sanhua Automotive Components Co., Ltd. | Electronic expansion valve, thermal management assembly, cooling system, and method for manufacturing electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20111206 |