CN205639794U - Four -way reversal valve and air conditioning system - Google Patents
Four -way reversal valve and air conditioning system Download PDFInfo
- Publication number
- CN205639794U CN205639794U CN201620195227.0U CN201620195227U CN205639794U CN 205639794 U CN205639794 U CN 205639794U CN 201620195227 U CN201620195227 U CN 201620195227U CN 205639794 U CN205639794 U CN 205639794U
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- CN
- China
- Prior art keywords
- valve
- mouth
- pressure
- way change
- pressure release
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- Expired - Fee Related
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- Multiple-Way Valves (AREA)
Abstract
The utility model provides a four -way reversal valve and air conditioning system. According to the utility model discloses a four -way reversing valve, including valve body and slider, the inside valve pocket that forms of valve body has four valve ports that communicate with the valve pocket on the valve body, and four valve ports include D mouth, E mouth, S mouth and C mouth, and wherein, the D mouth is used for being connected with the gas vent of compressor, and the S mouth is used for being connected with the induction port of compressor, the slider sets up in the valve pocket to along the setting of valve pocket slidable in order to switch two liang of connected states of four valve ports, be provided with on the slider by the pressure release structure of D oral -lateral to S oral -lateral pressure release. The utility model discloses a set up by the pressure release structure of D oral -lateral to S oral -lateral pressure release on the slider, when pressure was greater than the pressure release pressure of pressure release structure in the valve pocket, the pressure release structure was opened to make that pressure prevents through the release of pressure release structure that the slider from being damaged by pressure or blocking the abnormal conditions of waiting indefinitely, guarantees four -way reversing valve's reliable switching -over in the valve pocket.
Description
Technical field
This utility model relates to field of air conditioning, in particular to a kind of four-way change-over valve and air-conditioning system
System.
Background technology
Four-way change-over valve is one of important building block of heat pump air conditioner, and heat pump air conditioner is commutated by four-way
Valve realizes refrigeration and the conversion that heats, thus meets user in the Various Seasonal requirement to indoor temperature.
Four-way change-over valve is differential pressure drive valve, relies on the pressure differential at piston two ends to promote piston to realize commutation.Cause
This, it is ensured that four-way change-over valve reliably commutates and directly influences the requirement of user's comfortableness and energy-conservation mesh
's.The cold medium flux of four-way change-over valve commutation pressure differential and system about: if the cold medium flux of system
More than setting value, by the coolant of four-way change-over valve, the pressure loss that flowing is formed ensures that four-way
Reversal valve commutates；If pressure differential does not reaches setting requirement, four-way change-over valve will not commutate or block
In the middle of valve body, it is in the state of collaborating, causes cooling system heat-production functions to lose efficacy.
The patent of Application No. 201210461782.X discloses a kind of electromagnetism four with pressure protection
Logical reversal valve, but this electromagnetism four-way change-over valve cannot avoid the liquid hazards that air conditioning system is brought.
Utility model content
This utility model aims to provide a kind of four-way change-over valve improving commutation reliability and air conditioning system.
This utility model provides a kind of four-way change-over valve, and including valve body and slide block, valve inner is formed
Valve pocket, valve body has four valve ports connected with valve pocket, and four valve ports include D mouth, E mouth, S
Mouth and C mouth, wherein, D mouth is for being connected with the air vent of compressor, and S mouth is used for and compressor
Air entry connects；Slide block is arranged in valve pocket, and slidably arranges along valve pocket to switch four valve ports two
Two connected states；It is provided with on slide block by the pressure relief of D mouth lateral S mouth side pressure release.
Further, slide block has the arc convex portion prominent to D mouth side, and pressure relief is arranged on arc
In shape lobe.
Further, pressure relief includes pressure release valve and controls the pressure limiting bullet of pressure release valve-opening pressure
Spring.
Further, slide block two ends are provided with piston, and four-way change-over valve also includes the elder generation coordinated with piston
Conduction magnet valve.
This utility model additionally provides a kind of air conditioning system, including aforesaid four-way change-over valve.
According to four-way change-over valve of the present utility model and air conditioning system, by arranging on slide block by D mouth
The pressure relief of lateral S mouth side pressure release, when in valve pocket, pressure is more than the vent pressure of pressure relief,
Pressure relief open so that in valve pocket pressure through pressure relief discharge, anti-limited slip block be subject to crushing or
Person blocks abnormal conditions of waiting indefinitely, it is ensured that the reliable commutation of four-way change-over valve.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing being further appreciated by of the present utility model, this
The schematic description and description of utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is the structural representation of the slide block according to four-way change-over valve of the present utility model.
Description of reference numerals:
10, slide block；11, arc convex portion；20, pressure relief.
Detailed description of the invention
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Four-way change-over valve is the assembly of solenoid, main valve and pilot valve, and main valve is by pilot solenoid valve
Driving, in making valve body of main valve, both sides produce pressure differential so that slide block 10 makees the position in left and right horizontal direction
Move, to reach to change the valve of refrigerant flow direction.
Specifically, shown in Fig. 1, main valve includes valve body and slide block 10, and valve inner forms valve pocket,
Having four valve ports connected with valve pocket on valve body, four valve ports include D mouth, E mouth, S mouth and C
Mouthful, wherein, D mouth is for being connected with the air vent of compressor, and S mouth is for the air entry with compressor
Connect；Slide block 10 is arranged in valve pocket, and slidably arranges along valve pocket to switch four valve ports two-by-two
Connected state；Slide block 10 two ends are provided with piston, and pilot solenoid valve coordinates with piston, thus drives
Slide block 10 moves.
It is provided with by the pressure relief 20 of D mouth lateral S mouth side pressure release on slide block 10, i.e. in valve pocket
When pressure is more than the vent pressure of pressure relief 20, pressure relief 20 is opened, so that in valve pocket
Pressure discharges through pressure relief 20, and anti-limited slip block 10 is subject to crushing or blocks abnormal conditions of waiting indefinitely, it is ensured that
The reliable commutation of four-way change-over valve.It addition, arrange pressure relief 20, it is possible to avoid at compressor air-discharging
There is liquid coolant in pipe or inside compressor, compressor open moment due to pressure at expulsion excessive and lead
The liquid hammer problem caused, i.e. pressure relief 20 can release excessive pressure, it is ensured that cross valve
Quality.
Further, slide block 10 has the arc convex portion 11 prominent to D mouth side, arc convex portion
11 form the space that S mouth connects with E mouth or C mouth, and pressure relief 20 is arranged on arc convex portion
On 11, it is ensured that enough pressure release spaces, so that it is guaranteed that can reliably pressure release.Usually, pressure relief
20 include pressure release valve and control the pressure limiting spring of pressure release valve-opening pressure.The elastic force root of pressure limiting spring
Select to arrange according to vent pressure demand, it is ensured that when four-way change-over valve normally works, pressure relief 20 can
By closing, to guarantee system reliably working, and when causing valve pocket pressure excessive in handoff procedure, can
By opening, anti-limited slip block 10 structural failure or card are waited indefinitely textural anomaly.
This utility model additionally provides a kind of air conditioning system, including aforementioned four-way change-over valve, it is possible to effectively
Improve commutation reliability, it is ensured that air conditioning system normally works.
As can be seen from the above description, this utility model the above embodiments achieve following skill
Art effect:
According to four-way change-over valve of the present utility model and air conditioning system, by arrange on slide block 10 by
The pressure relief 20 of D mouth lateral S mouth side pressure release, pressure letting out more than pressure relief 20 in valve pocket
During pressure pressure, pressure relief 20 is opened, so that pressure discharges through pressure relief 20 in valve pocket,
Anti-limited slip block 10 is subject to crushing or blocks abnormal conditions of waiting indefinitely, it is ensured that the reliable commutation of four-way change-over valve.
The foregoing is only preferred embodiment of the present utility model, be not limited to this practicality new
Type, for a person skilled in the art, this utility model can have various modifications and variations.All
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made,
Within should be included in protection domain of the present utility model.
Claims (5)
1. a four-way change-over valve, including valve body and slide block (10), described valve inner forms valve pocket, there are on described valve body four valve ports connected with described valve pocket, described four valve ports include D mouth, E mouth, S mouth and C mouth, wherein, described D mouth is for being connected with the air vent of compressor, and described S mouth is for being connected with the air entry of compressor；
Described slide block (10) is arranged in described valve pocket, and slidably arranges to switch described four valve port connected states two-by-two along described valve pocket；It is characterized in that, described slide block (10) is provided with by the pressure relief (20) of D mouth lateral S mouth side pressure release.
Four-way change-over valve the most according to claim 1, it is characterised in that
Described slide block (10) has the arc convex portion (11) prominent to described D mouth side, and described pressure relief (20) is arranged in arc convex portion (11).
Four-way change-over valve the most according to claim 1 and 2, it is characterised in that
Described pressure relief (20) includes pressure release valve and controls the pressure limiting spring of described pressure release valve-opening pressure.
Four-way change-over valve the most according to claim 3, it is characterised in that
Described slide block (10) two ends are provided with piston, and described four-way change-over valve also includes the pilot solenoid valve coordinated with described piston.
5. an air conditioning system, including four-way change-over valve, it is characterised in that described four-way change-over valve is the four-way change-over valve according to any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620195227.0U CN205639794U (en) | 2016-03-14 | 2016-03-14 | Four -way reversal valve and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620195227.0U CN205639794U (en) | 2016-03-14 | 2016-03-14 | Four -way reversal valve and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639794U true CN205639794U (en) | 2016-10-12 |
Family
ID=57076399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620195227.0U Expired - Fee Related CN205639794U (en) | 2016-03-14 | 2016-03-14 | Four -way reversal valve and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462376A (en) * | 2017-10-10 | 2017-12-12 | 芜湖三花自控元器件有限公司 | A kind of sliding block test fixture device and test technology |
| CN111412679A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Four-way valve, air conditioning system and control method of air conditioning system |
-
2016
- 2016-03-14 CN CN201620195227.0U patent/CN205639794U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462376A (en) * | 2017-10-10 | 2017-12-12 | 芜湖三花自控元器件有限公司 | A kind of sliding block test fixture device and test technology |
| CN111412679A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Four-way valve, air conditioning system and control method of air conditioning system |
| CN111412679B (en) * | 2020-03-02 | 2021-02-23 | 珠海格力电器股份有限公司 | Four-way valve, air conditioning system and control method of air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20210314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |