CN208295212U - Vehicle compressor control valve - Google Patents
Vehicle compressor control valve Download PDFInfo
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- CN208295212U CN208295212U CN201820423337.7U CN201820423337U CN208295212U CN 208295212 U CN208295212 U CN 208295212U CN 201820423337 U CN201820423337 U CN 201820423337U CN 208295212 U CN208295212 U CN 208295212U
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- valve
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- bellows
- ball
- compressor control
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Abstract
The utility model provides a kind of vehicle compressor control valve, including valve body, bellows, valve rod, valve ball, return spring, the first chamber being connected to the suction chamber of compressor is formed in valve body, the second chamber being connected to the discharge chamber of compressor, the third chamber being connected to the inner cavity of compressor, it is connected to the valve port of the second chamber and third chamber, and stem guiding hole, bellows setting is intracavitary first, valve ball and return spring setting are intracavitary second, return spring is biased on valve ball so that valve ball can close valve port, the fixing end of bellows is fixed on valve body, valve rod is arranged in stem guiding hole, one end of valve rod is connected with the movable end of bellows, the other end is supported on valve ball, position limiting structure is provided on valve rod.By the way that position limiting structure is arranged on valve rod, can reduce valve rod stretched with bellows and mobile distance, guarantee that valve ball is without departing from the range of setting when bellows is stretched over the limit, enable the smooth return of valve ball when bellows is shunk.
Description
Technical field
The utility model relates to Compressor Technology field, in particular to a kind of vehicle compressor control valve.
Background technique
Compressor control valve is the important component of compressor with variable displacement, and function is that compressor is allowed to set up pressure
Power realizes that discharge capacity adjusts and freezes.Specifically, inside compressor control valve, valve ball is core regulating member, and valve ball is closed
When, pressure of inspiration(Pi) and pressure at expulsion can be made to generate pressure difference, to carry out discharge capacity adjusting and refrigeration.Existing vehicle compressor control
The problems such as valve is due to valve ball surrounding structure design defect and excessive valve rod travel, is easy to cause valve ball can not in adjustment process
Return causes vehicle compressor control valve to be collaborated so that valve port is unable to completely close, and pressure of inspiration(Pi) and pressure at expulsion can not be made to build
Pressure difference is erected, causes compressor that can not freeze and Displacement Regulation, disabler.
Utility model content
In view of this, the utility model is directed to a kind of vehicle compressor control valve convenient for valve ball return.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of vehicle compressor control valve, including valve body, bellows, valve rod, valve ball, return spring, shape in the valve body
The first chamber of suction chamber connection of Cheng Youyu compressor, the second chamber being connected to the discharge chamber of compressor, the inner cavity with compressor
The third chamber of connection, valve port and the stem guiding hole for being connected to second chamber and the third chamber, the bellows setting exist
Described first is intracavitary, and the valve ball and return spring setting are intracavitary described second, and the return spring is biased in the valve ball
Above so that the valve ball can close the valve port, the fixing end of the bellows is fixed on the valve body, and the valve rod is worn
In the stem guiding hole, one end of the valve rod is connected with the movable end of the bellows, and the other end is supported in the valve ball
On, the position limiting structure for limiting the valve rod travel is provided on the valve rod.
Further, the position limiting structure is the limited cap being mounted on the valve rod, and one end of the valve rod passes through institute
It states limited cap to be connected with the movable end of the bellows, the limited cap protrudes from the movable end of the bellows.
Further, the movable end of the bellows is formed with the first groove, and the limited cap is interference fitted in described
In one groove.
Further, second chamber is formed as stepped hole, and the stepped hole includes major diameter section and path section, the path
Section is connected with the valve port, and the valve ball is contained in the valve port and the path section, and the return spring is contained in described
In major diameter section, in the state that the valve ball closes the valve port and the valve rod and the valve ball contact, by the valve rod
Pilot hole is defined as A close to the distance between one end of the limited cap and the limited cap, by the center of the valve ball and institute
The distance between the step surface for stating stepped hole is defined as B, meets A≤B.
Further, the step surface of the stepped hole is formed as guiding surface.
Further, the valve port is formed as bellmouth so that when the valve ball close the valve port when, the valve ball with
The circumferential surface of the valve port is tangent.
Further, one end that the valve rod is contacted with the valve ball is formed as fork configuration.
Further, the valve body includes the first valve body and the second valve body, and first valve body and the second valve body interference are matched
It closes to limit first chamber, second chamber and third chamber are formed in second valve body.
Further, the vehicle compressor control valve further includes filter, and the filter is mounted on second valve
On body.
Further, the vehicle compressor control valve further includes three sealing rings, and three sealing rings are installed in
On the valve body.
Compared with the existing technology, vehicle compressor control valve described in the utility model has the advantage that
By the way that position limiting structure is arranged on valve rod, it can reduce valve rod and stretched and mobile distance with bellows, guaranteed
Valve ball is without departing from the range of setting when bellows is stretched over the limit, enables the smooth return of valve ball when bellows is shunk,
Guarantee valve port closing.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 and Fig. 2 is the cross-sectional view of vehicle compressor control valve described in the utility model embodiment；
Fig. 3 is the partial enlarged view of Fig. 1, wherein valve ball and return spring is not shown；
Fig. 4 is the dress of valve rod described in the utility model embodiment in vehicle compressor control valve, limited cap and valve ball
With schematic diagram.
Description of symbols:
The first valve body of 1-, the second valve body of 2-, 3- bellows, 4- valve rod, 5- valve ball, 6- return spring, 7- limited cap, 8-
Filter, 9- sealing ring, the first chamber of 11-, 12- boss, the second chamber of 21-, 22- third chamber, 23- valve port, 24- stem guiding hole,
31- fixing end, 32- movable end, 211- major diameter section, 212- path section, 213- step surface.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model provides a kind of vehicle compressor control valve, including valve body, bellows 3, valve rod 4, valve ball 5, return
Spring 6 is formed with the first chamber 11 being connected to the suction chamber of compressor, the second chamber being connected to the discharge chamber of compressor in valve body
21, valve port 23 and the stem guiding hole of the third chamber 22, connection the second chamber 21 and third chamber 22 that are connected to the inner cavity of compressor
24.Bellows 3 is arranged in the first chamber 11, and valve ball 5 and return spring 6 are arranged in the second chamber 21, and valve ball 5 is for closing or beating
Valve opening mouth 23, the fixing end 31 of bellows 3 are fixed on valve body, and one end of valve rod 4 is connected with the movable end 32 of bellows 3, another
It supports on valve ball 5 at end.Return spring 6 is biased on valve ball 5, the return for valve ball 5.
Bellows 3 is mounted in the first chamber 11, experiences the variation of pressure of inspiration(Pi) Ps, with the increase of pressure of inspiration(Pi) Ps
Shorten, pressure of inspiration(Pi) Ps reduces and extends.Bellows 3 has fixing end 31 and movable end 32, and fixing end 31 is mounted on valve body,
Movable end 32 is connected with one end of valve rod 4, and valve rod 4 passes through the intracorporal stem guiding hole 24 of valve, and the other end of valve rod 4 is supported
On valve ball 5.Bellows 3 is changed with pressure of inspiration(Pi) Ps and changes the power generated and pass to valve ball 5 by valve rod 4, to control valve port
23 aperture adjusts discharge chamber and flows to the gas flow of compressor inner cavity, to achieve the purpose that adjust cavity pressure Pc.
In the present invention, it is provided with position limiting structure on valve rod 4, is moved with reducing valve rod 4 with the stretching, extension of bellows 3
Distance, guarantee the range of when bellows 3 is stretched over limit valve ball 5 without departing from setting, so that the valve when bellows 3 is shunk
Ball 5 can smooth return, guarantee valve port 23 close.
In one embodiment, position limiting structure can be the limited cap 7 being mounted on valve rod 4, and one end of valve rod 4 is logical
It crosses limited cap 7 to be connected with the movable end 32 of bellows 3, limited cap 7 protrudes from the movable end 32 of bellows 3.When bellows 3 is stretched
When opening up certain length, limited cap 7 is lived by valve body backstop, prevent valve rod 4, from continuing to move to, bellows 3 cannot continue to stretch,
To reduce the stroke of valve rod 4.In other embodiments, position limiting structure may be the limit being integrally formed on valve rod 4
Boss.
Limited cap 7 can be assembled with the movable end 32 of bellows 3 by any suitable mode.In a kind of embodiment party
In formula, the movable end 32 of bellows 3 could be formed with the first groove, and limited cap 7 is interference fitted in the first groove.Similarly,
The fixing end 31 of bellows 3 could be formed with the second groove, and boss 12, boss 12 and the second groove are formed on the wall surface of valve body
Interference fit, so that bellows 3 is mounted on valve body.
In one embodiment, the second chamber 21 can be formed as stepped hole, which includes major diameter section 211 and path
Section 212, path section 212 is connected with valve port 23, and valve ball is contained in valve port 23 and path section 212, and return spring 6 is contained in major diameter
In section 211, in the state that valve ball 5 closes valve port 23 and valve rod 4 and valve ball 5 contact, by stem guiding hole 24 close to limit
The distance between one end of cap 7 and limited cap 7 be defined as A, by between the center of valve ball 5 and the step surface 213 of stepped hole away from
From B is defined as, meet A≤B.In this way, it is ensured that when bellows 3 is stretched over the limit, the center of valve ball 5 will not
Beyond path section 212, guarantee valve ball 5 will not lateral deviation, so as to smooth return.
Optionally, the step surface 213 of stepped hole can be formed as guiding surface.In this way, even if valve ball 5 is ejected path
Section 212, still can reenter path section 212 and valve port 23 by the guiding role of step surface 213, convenient for sealing.
In one embodiment, valve port 23 can be formed as the bellmouth tapered towards third chamber 22 from the second chamber 21,
So that valve ball 5 and the circumferential surface of valve port 23 are tangent when valve ball 5 closes valve port 23.In this way, on the one hand compared to existing
Right-angle structure in technology, tangent mode are more advantageous to guarantee sealing, on the other hand can play guiding role, are convenient for valve ball
5 returns.
In one embodiment, one end that valve rod 4 is contacted with valve ball 5 can be formed as fork configuration.It compares and plane
Structure can make the shaking volume in moving process of valve ball 5 smaller using fork configuration, prevent 5 lateral deviation of valve ball, guarantee valve ball 5
Center is in always on the axis of valve rod 4, to guarantee leakproofness.
Valve body can be integrally formed, and can also be assembled by seperated molding two or more parts.In a kind of implementation
In mode, valve body may include the first valve body 1 and the second valve body 2, and the first valve body 1 and the second valve body 2 interference fit are to limit
First chamber 11, the second chamber 21 and third chamber 22 are formed in the second valve body 2.
Optionally, vehicle compressor control valve can also include filter 8, and filter 8 is mounted on the second valve body 2, rise
To impurity screening, prevent foreign matter from entering the purpose of vehicle compressor control valve internal influence control valve control precision.
Optionally, vehicle compressor control valve further includes three sealing rings 9, which is mounted on valve body.Tool
Body, a sealing ring 9 is mounted on the second valve body 2, other two sealing ring 9 is mounted on the first valve body 1.Three sealings
Circle 9 plays sealing function when being assembled on compressor, keeps the suction chamber of compressor, inner cavity, discharge chamber isolated from one another, at the same also with
Ambient atmosphere isolation.
At work, when automobile thermic load increases, compressor air suction cavity pressure rises compressor, and the impression of bellows 3 is inhaled
It can shorten accordingly after atmospheric pressure Ps, return spring 6 pushes valve ball 5 to reset, and valve port 23 is closed, discharge chamber and compressor inner cavity
Be not connected to, pressure at expulsion Pd cannot be introduced into compressor inner cavity, and cavity pressure Pc yet by the orifice plate in compressor to air-breathing
Pressure Ps exhaust, cavity pressure Pc reduce, and increase the stroke of compressor piston, and discharge capacity increases, and refrigerating capacity increases.
When automobile thermic load reduces, compressor air suction cavity pressure decline, bellows 3 can phase after experiencing pressure of inspiration(Pi) Ps
Valve ball 5 is opened by valve rod 4, so that discharge chamber is connected with compressor inner cavity, pressure at expulsion Pd is rapidly introduced by the elongation answered
Compressor inner cavity increases cavity pressure Pc, reduces the stroke of compressor piston, and discharge capacity reduces, and refrigerating capacity is reduced.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of vehicle compressor control valve, which is characterized in that including valve body, bellows (3), valve rod (4), valve ball (5), return
Spring (6) is formed with the first chamber (11) being connected to the suction chamber of compressor in the valve body, is connected to the discharge chamber of compressor
The second chamber (21), be connected to the inner cavity of compressor third chamber (22), be connected to second chamber (21) and the third chamber
(22) valve port (23) and stem guiding hole (24), bellows (3) setting is in first chamber (11), the valve
Ball (5) and return spring (6) setting in second chamber (21), the return spring (6) be biased on the valve ball (5) with
It close the valve ball (5) can the valve port (23), the fixing end (31) of the bellows (3) is fixed on the valve body, institute
It states valve rod (4) and is arranged in the stem guiding hole (24), one end of the valve rod (4) and the movable end of the bellows (3)
(32) it is connected, the other end is supported on the valve ball (5), is provided on the valve rod (4) for limiting the valve rod (4) stroke
Position limiting structure.
2. vehicle compressor control valve according to claim 1, which is characterized in that the position limiting structure is described to be mounted on
Limited cap (7) on valve rod (4), the activity that one end of the valve rod (4) passes through the limited cap (7) and the bellows (3)
(32) are held to be connected, the limited cap (7) protrudes from the movable end (32) of the bellows (3).
3. vehicle compressor control valve according to claim 2, which is characterized in that the movable end of the bellows (3)
(32) it is formed with the first groove, the limited cap (7) is interference fitted in first groove.
4. vehicle compressor control valve according to claim 2 or 3, which is characterized in that second chamber (21) is formed as
Stepped hole, the stepped hole include major diameter section (211) and path section (212), the path section (212) and the valve port (23) phase
Even, the valve ball (5) is contained in the valve port (23) and the path section (212), and the return spring (6) is contained in described
In major diameter section (211),
It, will in the state that the valve ball (5) close the valve port (23) and the valve rod (4) and the valve ball (5) contact
The stem guiding hole (24) is defined as A close to the distance between the one end of the limited cap (7) and the limited cap (7), will
The center of the valve ball (5) and the distance between the step surface (213) of the stepped hole are defined as B, meet A≤B.
5. vehicle compressor control valve according to claim 4, which is characterized in that the step surface (213) of the stepped hole
Be formed as guiding surface.
6. vehicle compressor control valve according to claim 1, which is characterized in that the valve port (23) is formed as taper
Hole, so that the valve ball (5) and the circumferential surface of the valve port (23) are tangent when the valve ball (5) close valve port (23).
7. vehicle compressor control valve according to claim 1, which is characterized in that the valve rod (4) and the valve ball (5)
One end of contact is formed as fork configuration.
8. vehicle compressor control valve according to claim 1, which is characterized in that the valve body includes the first valve body (1)
With the second valve body (2), first valve body (1) and the second valve body (2) interference fit are described to limit first chamber (11)
Second chamber (21) and third chamber (22) are formed in second valve body (2).
9. vehicle compressor control valve according to claim 8, which is characterized in that the vehicle compressor control valve also wraps
It includes filter (8), the filter (8) is mounted on second valve body (2).
10. vehicle compressor control valve according to claim 1, which is characterized in that the vehicle compressor control valve is also
Including three sealing rings (9), three sealing rings (9) are installed on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423337.7U CN208295212U (en) | 2018-03-27 | 2018-03-27 | Vehicle compressor control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820423337.7U CN208295212U (en) | 2018-03-27 | 2018-03-27 | Vehicle compressor control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295212U true CN208295212U (en) | 2018-12-28 |
Family
ID=64695061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820423337.7U Active CN208295212U (en) | 2018-03-27 | 2018-03-27 | Vehicle compressor control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295212U (en) |
-
2018
- 2018-03-27 CN CN201820423337.7U patent/CN208295212U/en active Active
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