CN209145863U - Screw compressor, air-conditioning and vehicle - Google Patents
Screw compressor, air-conditioning and vehicle Download PDFInfo
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- CN209145863U CN209145863U CN201821764270.XU CN201821764270U CN209145863U CN 209145863 U CN209145863 U CN 209145863U CN 201821764270 U CN201821764270 U CN 201821764270U CN 209145863 U CN209145863 U CN 209145863U
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Abstract
The utility model discloses a kind of screw compressor, air-conditioning and vehicles, wherein screw compressor includes the back pressure cavity being connected by drainback passage with discharge chamber, back pressure cavity is equipped with pressure release passage, screw compressor further includes the pressure relief device for opening or closing pressure release passage, when the oil pressure of back pressure cavity is greater than preset value, pressure relief device opens pressure release passage, so that back pressure cavity pressure release.It is arranged such, increase pressure release passage and pressure relief device, when the pressure of back pressure cavity reaches a certain level, open pressure release passage, it can make back pressure cavity pressure release, thus balance pressure, not will cause internal gas blowby causes compressor unstable, compressor horsepower is reduced, compressor performance is improved, reduces noise and the vibration of compressor, it solves refrigeration oil in the prior art to accumulate in back pressure cavity, cause the pressure rise in back pressure cavity, cause pressure imbalance, causes the problem that compressor horsepower is big, vibration is big, noise is big.
Description
Technical field
The utility model relates to Compressor Technology fields, more specifically to a kind of screw compressor, air-conditioning and vehicle
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Background technique
Screw compressor, it is small in size, high-efficient because having the characteristics that, become type of compressor preferred in passenger car.It is existing
Some screw compressors, as shown in Figure 1, including housing unit 2, bracket component 3, dynamic disk component 4, quiet disk component 5, front cover component
6, stator module 17, rotor assembly 18, the equal components of crankshaft 19.When compressor operating, gas mixture enters from air entry 1 to be inhaled
Then air cavity 16 is discharged in discharge chamber 9 by compression chamber 20, separated oil, gas by oil distributing pipe 8, gas is by 7 row of exhaust outlet
Out, refrigeration oil 10 is after the filtering of filter screen 11, through the first drainback passage 12 being arranged on quiet disk component 5 and setting in bracket
The second drainback passage 13 on component 3 returns to back pressure cavity 14.But since back pressure cavity 14 is enclosure space, refrigeration oil 10 is accumulated
In back pressure cavity 14, the pressure in back pressure cavity 14 is caused constantly to increase, cause pressure imbalance when compressor operating, causes to press
Contracting machine power is big, vibration is big, and compressor noise is caused to become larger.
Therefore, how to solve refrigeration oil in the prior art to accumulate in back pressure cavity, cause the pressure rise in back pressure cavity, draw
Pressure imbalance is played, the problem that compressor horsepower is big, vibration is big, noise is big is caused, becomes those skilled in the art to be solved
Important technological problems.
Utility model content
The purpose of this utility model is to provide a kind of screw compressor, air-conditioning and vehicles, cold in the prior art to solve
Frozen oil accumulates in back pressure cavity, causes the pressure rise in back pressure cavity, causes pressure imbalance, causes that compressor horsepower is big, vibration
Dynamic problem big, noise is big.
The purpose of this utility model is achieved through the following technical solutions:
A kind of screw compressor provided by the utility model, including the back pressure being connected by drainback passage with discharge chamber
Chamber, the back pressure cavity are equipped with pressure release passage, and the screw compressor further includes for opening or closing letting out for the pressure release passage
Pressure device, when the oil pressure of the back pressure cavity is greater than preset value, the pressure relief device opens the pressure release passage, so that the back
Press chamber pressure release.
Preferably, the outlet of the pressure release passage is connected with the suction chamber of the screw compressor.
Preferably, the pressure release passage includes the first passage and second channel to connect, and the pressure relief device includes valve
Core and return springs, the spool are displaceably arranged in the first passage, and when the spool is located at first position
It can be by the first passage and described the when can be blocked the first passage and the second channel, be located at the second position
The connection of two channels；When the oil pressure of the back pressure cavity is greater than the preset value, the spool is moved to institute from the first position
The second position is stated, and the return springs is made to generate elastic deformation；When the oil pressure of the back pressure cavity is less than the preset value,
The return springs restore deformation, and the spool is made to be reset to the first position from the second position.
Preferably, the second channel is arranged on the side wall of the first passage.
Preferably, the pressure relief device further includes the cock body being arranged in the first passage, the return springs
One end is supported on the cock body, the other end is supported on the spool.
Preferably, the pressure release passage and the pressure relief device are arranged on the bracket component of the screw compressor.
Preferably, the first passage is cylindrical channel, and the spool is spherical valve core.
Preferably, the return springs are spring.
The utility model additionally provides a kind of air-conditioning, including screw compressor, and the screw compressor is any one of as above
The screw compressor.
The utility model provides a kind of vehicle, including air-conditioning again, and the air-conditioning is air-conditioning as described above.
In technical solution provided by the utility model, a kind of screw compressor includes being connected by drainback passage with discharge chamber
Logical back pressure cavity, back pressure cavity are equipped with pressure release passage, and screw compressor further includes filling for opening or closing the pressure release of pressure release passage
It sets, when the oil pressure of back pressure cavity is greater than preset value, pressure relief device opens pressure release passage, so that back pressure cavity pressure release.So set, increasing
Pressure release passage and pressure relief device are added, when the pressure of back pressure cavity reaches a certain level, have opened pressure release passage, back pressure cavity can be made to let out
Pressure, thus balances pressure, not will cause internal gas blowby causes compressor unstable, reduces compressor horsepower, improves
Compressor performance reduces noise and the vibration of compressor, solves in the prior art that refrigeration oil accumulates in back pressure cavity, causes
Pressure rise in back pressure cavity, causes pressure imbalance, causes the problem that compressor horsepower is big, vibration is big, noise is big.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of screw compressor in the prior art；
Fig. 2 is the structural schematic diagram of the utility model embodiment mesoscale eddies compressor；
Fig. 3 is partial enlarged view at A in Fig. 2；
Fig. 4 is partial enlarged view at B in Fig. 2；
Fig. 5 is C direction view in Fig. 4.
In Fig. 1-Fig. 5:
Air entry -1, housing unit -2, bracket component -3, dynamic disk component -4, quiet disk component -5, front cover component -6, exhaust
Mouth -7, oil distributing pipe -8, discharge chamber -9, refrigeration oil -10, strainer -11, the first drainback passage -12, the second drainback passage -13, back pressure
Chamber -14, pressure relief device -15, suction chamber -16, stator module -17, rotor assembly -18, crankshaft -19, compression chamber -20, first are led to
Road -21, second channel -22, spool -23, return springs -24, cock body -25.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Present embodiment provides a kind of screw compressor, air-conditioning and vehicle, solves refrigeration oil in the prior art
Accumulated in back pressure cavity, cause the pressure rise in back pressure cavity, cause pressure imbalance, cause compressor horsepower is big, vibration is big,
The big problem of noise.
Hereinafter, elaborating in conjunction with attached drawing to embodiment.In addition, embodiments illustrated below is not remembered claim
The content of the utility model of load plays any restriction effect.In addition, the full content of composition represented by following example is not limited to
Necessary to solution as utility model documented by claim.
Attached drawing 1-5, screw compressor provided in this embodiment are please referred to, including is connected by drainback passage with discharge chamber 9
Logical back pressure cavity 14, back pressure cavity 14 are equipped with pressure release passage, and screw compressor further includes for opening or closing letting out for pressure release passage
Pressure device 15, when the oil pressure of back pressure cavity 14 is greater than preset value, pressure relief device 15 opens pressure release passage, so that back pressure cavity 14 is let out
Pressure.As shown in Fig. 2, screw compressor further includes housing unit 2, bracket component 3, dynamic disk component 4, quiet disk component 5, front cover component
6, stator module 17, rotor assembly 18, the equal components of crankshaft 19.Drainback passage includes first time be arranged on quiet disk component 5
Oily the second drainback passage 13 channel 12 and be arranged on bracket component 3, is illustrated in figure 3 the part at the second drainback passage 13
Enlarged drawing.When the compressor is operated, gas mixture enters suction chamber 16 from air entry 1, is then discharged to by compression chamber 20
In air cavity 9, oil, gas are separated by oil distributing pipe 8, gas is discharged by exhaust outlet 7, refrigeration oil 10 after the filtering of filter screen 11, it is logical
It crosses drainback passage and returns to back pressure cavity 14.So set, increase pressure release passage and pressure relief device, when refrigeration oil in back pressure cavity not
Disconnected accumulation, when its oil pressure being made to reach preset value, pressure relief device opens pressure release passage, and refrigeration oil is discharged by pressure release passage, reduces
Pressure in back pressure cavity, avoids the unbalanced phenomenon of pressure in compressor, not will cause internal gas blowby leads to compressor not
Stablize, reduces compressor horsepower, improve compressor performance, reduce noise and the vibration of compressor, solve existing skill
Refrigeration oil accumulates in back pressure cavity in art, causes the pressure rise in back pressure cavity, causes pressure imbalance, causes compressor horsepower
Greatly, the problem that vibration is big, noise is big.
Compressor oil content plays the role of vital, while lubrication feelings of compressor inner body to compressor performance
Condition directly affects part life, compressor noise vibration etc..In order to solve compressor inner components insufficient lubrication, noise
Greatly, the problems such as power is high, in the present embodiment, the outlet of pressure release passage are connected with the suction chamber 16 of screw compressor.In this way
Setting, refrigeration oil enter suction chamber, are turned again in suction chamber by compression chamber, discharge chamber, drainback passage and pressure release passage etc.,
A complete oil return circulatory system is formed inside compressor, is improved the utilization rate of refrigeration oil, is had lubricated compression well
Components inside machine extend the compressor service life, strengthen compressor reliability, improve compressor capacity, reduce pressure
The noise and vibration etc. of contracting machine.
In the present embodiment, it as shown in figure 4, pressure release passage includes the first passage 21 and second channel 22 to connect, lets out
Pressure device 15 includes spool 23 and return springs 24.Spool 23 is displaceably arranged in first passage 21, can be first
It is reciprocating in channel 21.When spool 23 is located at first position, first passage 21 and second channel 22 can be blocked；When
When spool 23 is located at the second position, first passage 21 can be connected to second channel 22.Therefore, when the oil pressure of back pressure cavity 14 is big
When preset value, spool 23 is moved to the second position from first position under oil pressure effect, and return springs 24 is made to generate bullet
Property deformation, while first passage 21 is connected with second channel 22, and refrigeration oil 10 is discharged, and 14 oil pressure of back pressure cavity reduces；Work as back
When the oil pressure of chamber 14 being pressed to be less than preset value, return springs 24 restore deformation, and are reset to the from the second position with movable valve plug 23
One position, to block first passage 21 and second channel 22.It designing in this way, pressure release mode is simple, and it is compact-sized, effectively solve
Pressure in Back-pressure Cavity imbalance problem, reduces compressor horsepower.
In the preferred embodiment of the present embodiment, return springs 24 are spring.First passage 21 is cylindrical channel, spool
23 be spherical valve core, and spherical valve core can be slided neatly in first passage 21.As shown in figure 5, the setting of second channel 22 is the
On the side wall in one channel 21, second channel 22 can be cylindrical channel.Form is simple in this way, manufacture easy to process.
For the ease of installing return springs 24, it is set preferably to play a role, pressure relief device 15 further includes setting the
Cock body 25 in one channel 21, one end of return springs 24 is supported on cock body 25, the other end is supported on spool 23.This
Sample, return springs are securely attached in first passage, and it is reciprocating in first passage to effectively realize band movable valve plug.
Wherein, the shape and structure of cock body 25 can be designed according to the form of first passage 21, so that cock body 25 and first passage 21 match
It closes, is completely embedded.
In addition, as shown in Fig. 2, pressure release passage and pressure relief device 15 are arranged on the bracket component 3 of screw compressor.In this way
Connect with back pressure cavity it is compact, shorten pressure release path, refrigeration oil is discharged in time, fast and effeciently solves the problems, such as back pressure cavity oil pressure.
A kind of air-conditioning, including screw compressor are additionally provided in the present embodiment, which is in embodiment as above
Screw compressor.
A kind of vehicle, including air-conditioning are provided again in the present embodiment, which is the air-conditioning in embodiment as above.
It should be noted that the device or component of the different function in above-mentioned each embodiment can be combined, for example,
The preferred embodiment mesoscale eddies compressor of the present embodiment includes the back pressure cavity 14 being connected by drainback passage with discharge chamber 9, back pressure
Chamber 14 is equipped with pressure release passage, and the outlet of pressure release passage is connected with suction chamber 16, and pressure release passage includes the first passage to connect
21 and second channel 22, second channel 22 be arranged on the side wall of first passage 21, first passage 21 and second channel 22 are circle
Column-like paths.Screw compressor further includes the pressure relief device 15 for opening or closing pressure release passage, when the oil pressure of back pressure cavity 14
When greater than preset value, pressure relief device 15 opens pressure release passage, so that 14 pressure release of back pressure cavity.Wherein, pressure release passage and pressure relief device
15 are arranged on the bracket component 3 of screw compressor.Pressure relief device 15 includes spool 23 and return springs 24, and spool 23 is ball
Shape spool, return springs 24 are spring.Pressure relief device 15 further includes the cock body 25 being arranged in first passage 21, Flexible Reset
One end of part 24 is supported on cock body 25, the other end is supported on spool 23.First passage 21 is displaceably arranged in spool 23
It is interior, when spool 23 is located at first position, first passage 21 and second channel 22 can be blocked；When spool 23 is located at second
When setting, first passage 21 can be connected to second channel 22.
As shown in Fig. 2, when the compressor is operated, gas mixture enters suction chamber 16 from air entry 1, then pass through compression
Chamber 20 is discharged in discharge chamber 9, is separated oil, gas by oil distributing pipe 8, gas is discharged by exhaust outlet 7, and refrigeration oil 10 is through filter screen 11
Back pressure cavity 14 is returned to after filtering, by drainback passage.When refrigeration oil 10 constantly accumulates in back pressure cavity 14, its oil pressure is made to reach pre-
If spool 23 from first position is moved to the second position under oil pressure effect, and spring is made to generate elastic deformation when value, at this time the
One channel 21 is connected with second channel 22, and refrigeration oil 10 is discharged into suction chamber 16, and 14 oil pressure of back pressure cavity reduces, while refrigeration oil
10 turn again to compression chamber 20, into next oil return circulation；When the oil pressure of back pressure cavity 14 is less than preset value, spring restores
Deformation, and it is reset to first position from the second position with movable valve plug 23, to block first passage 21 and second channel 22.
So set, increasing pressure release passage and pressure relief device, pressure release mode is simple, compact-sized, reduces back pressure cavity
Interior pressure avoids the unbalanced phenomenon of pressure in compressor, and not will cause internal gas blowby causes compressor unstable, reduces
Compressor horsepower, while refrigeration oil returns to suction chamber, and complete oil return circulatory system, raising are formed inside compressor
The utilization rate of refrigeration oil, has lubricated the components inside compressor well, extends the compressor service life, strengthen compressor
Reliability improves compressor performance, reduces noise and the vibration of compressor, exists to solve refrigeration oil in the prior art
It is accumulated in back pressure cavity, causes the pressure rise in back pressure cavity, cause pressure imbalance, cause that compressor horsepower is big, vibration is big, makes an uproar
The big problem of sound.
The present embodiment additionally provides a kind of air-conditioning, including screw compressor, which is the whirlpool of embodiment as above
Revolve compressor.A kind of vehicle, including air-conditioning are provided again in the present embodiment, which is the air-conditioning in embodiment as above.So
Setting, solves in the prior art that refrigeration oil accumulates in the back pressure cavity of screw compressor, causes the pressure rise in back pressure cavity,
Cause pressure imbalance, causes the problem that compressor horsepower is big, vibration is big, noise is big.The derivation process of the beneficial effect and upper
The derivation process for stating beneficial effect brought by screw compressor is substantially similar, therefore details are not described herein.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (10)
1. a kind of screw compressor, including the back pressure cavity (14) being connected by drainback passage with discharge chamber (9), feature exists
In the back pressure cavity (14) is equipped with pressure release passage, and the screw compressor further includes for opening or closing the pressure release passage
Pressure relief device (15), when the oil pressure of the back pressure cavity (14) is greater than preset value, the pressure relief device (15) open described in let out
Pressure passageway, so that the back pressure cavity (14) pressure release.
2. screw compressor as described in claim 1, which is characterized in that the outlet of the pressure release passage and the scroll compression
The suction chamber (16) of machine is connected.
3. screw compressor as described in claim 1, which is characterized in that the pressure release passage includes the first passage to connect
(21) and second channel (22), the pressure relief device (15) include spool (23) and return springs (24), the spool (23)
Displaceably it is arranged in the first passage (21), and when spool (23) is located at first position can lead to described first
Road (21) and the second channel (22) can lead to the first passage (21) and described second when blocking, being located at the second position
Road (22) connection；When the oil pressure of the back pressure cavity (14) is greater than the preset value, the spool (23) is from the first position
It is moved to the second position, and the return springs (24) is made to generate elastic deformation；When the oil pressure of the back pressure cavity (14)
When less than the preset value, the return springs (24) restore deformation, and keep the spool (23) multiple from the second position
Position to the first position.
4. screw compressor as claimed in claim 3, which is characterized in that second channel (22) setting is logical described first
On the side wall in road (21).
5. screw compressor as claimed in claim 3, which is characterized in that the pressure relief device (15) further includes being arranged described
Cock body (25) in first passage (21), one end of the return springs (24) is supported on the cock body (25), the other end
It is supported on the spool (23).
6. screw compressor as described in claim 1, which is characterized in that the pressure release passage and the pressure relief device (15) are set
It sets on the bracket component (3) of the screw compressor.
7. screw compressor as claimed in claim 3, which is characterized in that the first passage (21) is cylindrical channel, institute
Stating spool (23) is spherical valve core.
8. screw compressor as claimed in claim 3, which is characterized in that the return springs (24) are spring.
9. a kind of air-conditioning, including screw compressor, which is characterized in that the screw compressor is such as any one of claim 1-8
The screw compressor.
10. a kind of vehicle, including air-conditioning, which is characterized in that the air-conditioning is air-conditioning as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821764270.XU CN209145863U (en) | 2018-10-29 | 2018-10-29 | Screw compressor, air-conditioning and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821764270.XU CN209145863U (en) | 2018-10-29 | 2018-10-29 | Screw compressor, air-conditioning and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145863U true CN209145863U (en) | 2019-07-23 |
Family
ID=67271176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821764270.XU Active CN209145863U (en) | 2018-10-29 | 2018-10-29 | Screw compressor, air-conditioning and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209145863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185131A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Screw compressor, air-conditioning and vehicle |
-
2018
- 2018-10-29 CN CN201821764270.XU patent/CN209145863U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185131A (en) * | 2018-10-29 | 2019-01-11 | 珠海凌达压缩机有限公司 | Screw compressor, air-conditioning and vehicle |
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