CN102589210A - Expansion valve - Google Patents
Expansion valve Download PDFInfo
- Publication number
- CN102589210A CN102589210A CN2012100639266A CN201210063926A CN102589210A CN 102589210 A CN102589210 A CN 102589210A CN 2012100639266 A CN2012100639266 A CN 2012100639266A CN 201210063926 A CN201210063926 A CN 201210063926A CN 102589210 A CN102589210 A CN 102589210A
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- China
- Prior art keywords
- refrigerant
- valve
- expansion valve
- needle
- flow control
- 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.)
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Abstract
The invention discloses an expansion valve, which comprises a rotor, guiding threads, an electromagnetic coil, a refrigerant inlet, a refrigerant outlet, a needle valve, a valve stem and a flow control hole. Opening of the flow control hole of the expansion valve is controlled by the aid of the needle valve, refrigerant which is exhausted from the refrigerant outlet and enters an evaporator is evaporated and vaporized under the condition of low temperature and low pressure to realize a refrigerating effect, furthermore, flow of the refrigerant which enters the evaporator can be automatically adjusted according to external heat load, only gaseous refrigerant is drained out from the evaporator under the condition that refrigeration is sufficient, and 'liquid shock' of a compressor is prevented.
Description
Technical field
The present invention relates to a kind of expansion valve.
Background technology
In refrigeration system,, must the pressure of cold-producing medium saturated liquid be dropped to below the corresponding saturation pressure of the saturation temperature lower than cryogenic object in order to absorb the heat of cryogenic object; Heating power expansion valve is the critical piece of formed automobile air-conditioning refrigeration system, is installed in the evaporator inlet place, and it is except having the function of throttling step-down; But in the existing expansion valve, the refrigerant flow that gets into expansion valve is unstable, and this has just caused step-down unstable; And because of what come out from evaporimeter is not to be the cold-producing medium of gaseous state entirely, and " liquid hammer " phenomenon that this compressor will occur has influenced the operate as normal of compressor; Noise increases, and the service life of having reduced compressor.
Summary of the invention
Goal of the invention: the objective of the invention is provides a kind of simple in structure in order to solve the deficiency of prior art, the efficient heating power expansion valve of dependable performance.
Technical scheme: in order to realize above purpose, a kind of expansion valve of the present invention, it comprises rotor, guide thread; Solenoid, refrigerant inlet, refrigerant outlet; Needle-valve, valve rod and flow control hole, described needle is provided with needle-valve; One side of described needle is provided with guide thread, and a side of described guide thread is provided with rotor, and a side of described rotor is provided with solenoid; One side of described needle-valve is provided with refrigerant inlet, and the middle of described needle and refrigerant outlet is provided with flow control hole, and a side of flow control hole is provided with refrigerant outlet.
Beneficial effect: a kind of expansion valve provided by the invention; Through the aperture of noticeable degree flow control hole, the cold-producing medium that will escape and enter evaporimeter from refrigerant outlet carburation by evaporation and outside freezing under low-temp low-pressure can also be according to the size of extraneous thermic load; Automatically regulate the flow of the cold-producing medium that gets into evaporimeter; Guarantee that under the sufficient situation of refrigeration what come out from evaporimeter all is the cold-producing medium of gaseous state, prevents that " liquid hammer " phenomenon from appearring in compressor.
Description of drawings
Fig. 1 is a cutaway view of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the present invention.
Be illustrated in figure 1 as a kind of expansion valve of the present invention, it comprises rotor 1, guide thread 2, solenoid 3, refrigerant inlet 4, refrigerant outlet 5, needle-valve 6, valve rod 7 and flow control hole 8.
Described needle 7 is provided with needle-valve 6; One side of described needle 7 is provided with guide thread 2; One side of described guide thread 2 is provided with rotor 1, and a side of described rotor 1 is provided with solenoid 3, and a side of described needle-valve 6 is provided with refrigerant inlet 4; The middle of described needle 6 and refrigerant outlet 5 is provided with flow control hole 8, and a side of flow control hole 8 is provided with refrigerant outlet 5.
Solenoid 3 outage under the normality, cold-producing medium is from flow through flow control hole 8 and flow out from refrigerant outlet 5 of refrigerant inlet 4, and during needle-valve 6 standard-sized sheets, refrigerant flow is maximum.When solenoid 3 when electric; Rotor 1 begins rotation under the electromagnetic force effect of solenoid 3, the number of the helix through guide thread 2 can know that rotor 1 needs the number of turns of rotating; Thereby realize the adjustment of cold-producing medium dosage; Rotatablely moving of rotor 1 is transformed into the rectilinear motion of needle-valve 6 under the effect of guide thread 2, needle-valve 6 apertures reduce, and then changes the flow of expansion valve.
This expansion valve is the control of the needle-valve 6 that is provided with through needle 7; Realized the adjusting of flow control hole 8 sizes, realized control, the cold-producing medium that this expansion valve not only will get into evaporimeter carburation by evaporation and freezing under low-temp low-pressure through the refrigerant flow of flow control hole 8; Can also be according to the size of extraneous thermic load; Automatically regulate the flow of the cold-producing medium that gets into evaporimeter, guarantee under the sufficient situation of refrigeration, what come out from evaporimeter all is the cold-producing medium of gaseous state; Prevent that " liquid hammer " phenomenon from appearring in compressor, makes the compressor operate as normal.
The above-mentioned specific embodiment only is explanation technical conceive of the present invention and characteristics, its objective is to let to be familiar with these those skilled in the art and can to understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalents that spirit has been done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (1)
1. expansion valve, it is characterized in that: it comprises rotor (1), guide thread (2); Solenoid (3), refrigerant inlet (4), refrigerant outlet (5); Needle-valve (6), valve rod (7) and flow control hole (8), described needle (7) is provided with needle-valve (6); One side of described needle (7) is provided with guide thread (2); One side of described guide thread (2) is provided with rotor (1), and a side of described rotor (1) is provided with solenoid (3), and a side of described needle-valve (6) is provided with refrigerant inlet (4); The middle of described needle (6) and refrigerant outlet (5) is provided with flow control hole (8), and a side of flow control hole (8) is provided with refrigerant outlet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100639266A CN102589210A (en) | 2012-03-12 | 2012-03-12 | Expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100639266A CN102589210A (en) | 2012-03-12 | 2012-03-12 | Expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102589210A true CN102589210A (en) | 2012-07-18 |
Family
ID=46478217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100639266A Pending CN102589210A (en) | 2012-03-12 | 2012-03-12 | Expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102589210A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728377A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
| CN109728379A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
| CN109728376A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part and battery component |
| CN109728378A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
-
2012
- 2012-03-12 CN CN2012100639266A patent/CN102589210A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109728377A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
| CN109728379A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
| CN109728376A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part and battery component |
| CN109728378A (en) * | 2017-10-30 | 2019-05-07 | 杭州三花研究院有限公司 | Board group part, battery component and battery heat-exchange system |
| CN109728377B (en) * | 2017-10-30 | 2022-02-11 | 杭州三花研究院有限公司 | Board subassembly, battery pack and battery heat transfer system |
| CN109728378B (en) * | 2017-10-30 | 2022-04-22 | 杭州三花研究院有限公司 | Board subassembly, battery pack and battery heat transfer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |