CN110513293A - Oil drainage pressure release structure, scroll compressor and air conditioner - Google Patents
Oil drainage pressure release structure, scroll compressor and air conditioner Download PDFInfo
- Publication number
- CN110513293A CN110513293A CN201910837306.5A CN201910837306A CN110513293A CN 110513293 A CN110513293 A CN 110513293A CN 201910837306 A CN201910837306 A CN 201910837306A CN 110513293 A CN110513293 A CN 110513293A
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- CN
- China
- Prior art keywords
- oil
- pressure
- draining
- recovery tank
- pressure cavity
- 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.)
- Pending
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- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 238000011084 recovery Methods 0.000 claims description 48
- 206010008469 Chest discomfort Diseases 0.000 claims description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 37
- 239000010687 lubricating oil Substances 0.000 description 12
- 230000003434 inspiratory effect Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 239000010725 compressor oil Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/801—Wear plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides an oil drainage and pressure relief structure, a scroll compressor and an air conditioner, relates to the technical field of compressors, and solves the technical problems of oil accumulation and overlarge pressure of a back pressure cavity of the conventional scroll compressor. The oil drainage and pressure release structure comprises a support and a wear-resistant sheet, wherein an oil drainage and pressure release hole is formed in the wear-resistant sheet, an oil return channel is formed between the support and the wear-resistant sheet, the oil return channel can be communicated with a high-pressure cavity and a back-pressure cavity of the scroll compressor, and the oil drainage and pressure release hole is communicated with the back-pressure cavity; the oil drainage pressure relief hole is intermittently communicated with a low-pressure cavity of the scroll compressor so as to discharge excessive oil and/or refrigerants in the back pressure cavity to the low-pressure cavity. The dynamic disk operation in-process draining pressure release hole is communicate with scroll compressor's low pressure chamber intermittently to arrange excessive oil and/or refrigerant in the backpressure chamber to the low pressure chamber, make compressor operation in-process can in time drain, the pressure release to the backpressure chamber, make the oil content in the backpressure chamber and the pressure in backpressure chamber maintain at certain extent, guaranteed the effect of the balanced dynamic disk axial force in backpressure chamber.
Description
Technical field
The present invention relates to Compressor Technology fields, more particularly, to a kind of draining pressure relief, screw compressor and air-conditioning
Device.
Background technique
Screw compressor has the characteristics that small in size, light-weight, smooth running, high-efficient, is increasingly being applied to make
Cold industry is especially more applied to lightness new-energy automotive air-conditioning.Screw compressor at runtime, due to by compressed gas
It acts on Moving plate, Moving plate bears axial force and tilting moment, and the function and effect of power make the quiet disk of Moving plate disengaging and Moving plate end face incline
Tiltedly, it causes biggish gas to leak the friction and wear between sound disk vortex wall, and causes Moving plate to vibrate to a certain extent,
Noise increases.In order to solve the above problem, at the Moving plate back side, setting intermediate pressure back pressure cavity carrys out balanced dynamic disk axial force and weakens to incline
Covering torque is a kind of simple effective method.
Pressure in usual back pressure cavity needs to be set in a certain range, cannot be excessive or too small, and Pressure in Back-pressure Cavity is too small, then
The effect of balanced dynamic disk axial force is not had；Pressure in Back-pressure Cavity is excessive, then the friction loss that will lead between sound disk increases, pressure
Contracting machine power loss increases.
Applicants have discovered that at least there is following technical problem in the prior art:
The back pressure hole path of most screw compressor back pressure cavities is shared with the oil return hole path of quiet disk on Vehicles Collected from Market,
Therefore a large amount of lubricating oil can be overstock in back pressure cavity, and since quiet disk drainback passage connects high pressure chest, though by drainback passage
The pressure release of capillary, but the pressure in back pressure cavity is still very high.Overstocking excessive lubricating oil will lead to compressor power consumption increase, and
The lubricating oil of back pressure cavity can not be discharged in time will lead to the quiet disk oil return hole of blocking, and lubricating oil is discharged to air-conditioning system with refrigerant, to being
System also has certain influence.
In addition, mostly side-suction type when the screw compressor pump housing on current market sucks refrigerant, was both opened in quiet disk side wall
The mode in hole, since scroll compressor structure is more and more compacter, it is bigger than normal that side-suction type will lead to inspiratory resistance, to increase power consumption.
Summary of the invention
The purpose of the present invention is to provide a kind of draining pressure relief, screw compressor and air conditioners, to solve existing skill
Screw compressor back pressure cavity oil accumulation present in art and the excessive technical problem of pressure.In many technical solutions provided by the invention
The many technical effects elaboration as detailed below that can be generated of optimal technical scheme.
To achieve the above object, the present invention provides following technical schemes:
A kind of draining pressure relief of screw compressor provided by the invention, including bracket and wear plate, the wear plate
On offer draining relief hole, drainback passage is formed between the bracket and the wear plate, the drainback passage can be connected to
The high pressure chest and back pressure cavity of the screw compressor, the draining relief hole are connected to the back pressure cavity；The draining relief hole
It is intermittently connected to, oil excessive in the back pressure cavity and/or refrigerant is drained into described with the low pressure chamber of the screw compressor
Low pressure chamber.
Optionally, the drainback passage includes the oil-recovery tank being opened on the wear plate and is opened on the bracket
Interface channel, the arrival end of the oil-recovery tank is connected to the high pressure chest, and the outlet end of the oil-recovery tank passes through the connection
Channel is connected to the back pressure cavity, and the back pressure cavity is connected to the draining relief hole.
Optionally, the oil-recovery tank includes the first oil-recovery tank, oil return gas pressure relief slot and the second oil-recovery tank, first oil-recovery tank
It being connected to by the oil return gas pressure relief slot with second oil-recovery tank, first oil-recovery tank is connected to the high pressure chest, and described
Two oil-recovery tanks are connected with the interface channel.
Optionally, the interface channel include radial passages with the circular passage that is connected to the radial passages, it is described
Oil-recovery tank is connected to the radial passages, and the draining relief hole is connected with the radial passages or the circular passage.
Optionally, multiple first air intake passages, first air intake passage and the scroll compression are offered on the bracket
The quiet side surface of contracting machine is connected to, and forms direct absorbing type air suction structure.
Optionally, multiple second air intake passages corresponding with first air intake passage are offered on the wear plate.
Optionally, multiple first air intake passages are circumferentially distributed at the outer rim of the bracket, and multiple described second
Air intake passage is circumferentially distributed at the outer rim of the wear plate.
A kind of screw compressor provided by the invention, the draining pressure release knot including quiet disk, Moving plate and any description above
Structure.
Optionally, the draining relief hole is located in the Moving plate and the operating envelope line of the wear plate contact portion.
A kind of air conditioner provided by the invention, the screw compressor including any description above.
A kind of draining pressure relief, screw compressor and air conditioner provided by the invention offer draining on wear plate and let out
Hole is pressed, draining relief hole is connected to back pressure cavity；In Moving plate operational process draining relief hole intermittently with the low pressure of screw compressor
Oil excessive in back pressure cavity and/or refrigerant are drained into low pressure chamber by chamber connection, and making can be in time to back in compressor operational process
Chamber draining, pressure release are pressed, the pressure of oil content and back pressure cavity in back pressure cavity is made to maintain a certain range, ensure that back pressure cavity balances
The effect of Moving plate axial force.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for draining pressure relief that the specific embodiment of the invention provides；
Fig. 2 is the draining pressure release flow path of draining pressure relief in Fig. 1, and what arrow indicated is the flowing side of oil and refrigerant in figure
To；
Fig. 3 is a kind of structural schematic diagram for bracket that the specific embodiment of the invention provides；
Fig. 4 is a kind of structural schematic diagram for wear plate that the specific embodiment of the invention provides；
Fig. 5 is a kind of structural schematic diagram for screw compressor that the specific embodiment of the invention provides.
1, front cover in figure；2, quiet disk；201, oil return hole；202, capillary oil return hole；3, Moving plate；4, wear plate；401, second
Air intake passage；402, the first oil-recovery tank；403, oil return gas pressure relief slot；404, the second oil-recovery tank；405, draining relief hole；5, bracket；
501, the first air intake passage；502, radial passages；503, circular passage；6, bracket bearing；7, circlip；8, axle envelope；9, shell；
10, crankshaft；11, low pressure chamber；12, back pressure cavity；13, eccentric bushing；14, Moving plate bearing；15, oil cleaner screen；16, high pressure chest.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
As Figure 1-Figure 4, the present invention provides a kind of draining pressure relief of screw compressor, including bracket 5 and resistance to
4 are ground, draining relief hole 405 is offered on wear plate 4, drainback passage, draining pressure release is formed between bracket 5 and wear plate 4
Hole 405 is connected to drainback passage, and drainback passage can be connected to the high pressure chest 16 and back pressure cavity 12 of screw compressor；Draining relief hole
405 are intermittently connected to the low pressure chamber of screw compressor 11, will be in back pressure cavity 12 to be connected to back pressure cavity 12 and low pressure chamber 11
Excessive oil and/or refrigerant drain into low pressure chamber 11.
Draining relief hole 405 is offered on wear plate 4, draining relief hole 405 is connected to back pressure cavity 12；Moving plate 3 was run
Draining relief hole 405 is intermittently connected to the low pressure chamber of screw compressor 11 in journey, by back pressure cavity 12 it is excessive oil and/or
Refrigerant drains into low pressure chamber 11, makes to make containing in back pressure cavity 12 in time to 12 draining of back pressure cavity, pressure release in compressor operational process
The pressure of oil mass and back pressure cavity 12 maintains a certain range, ensure that back pressure cavity 12 balances the effect of 3 axial force of Moving plate.
Optionally embodiment, drainback passage include the oil-recovery tank being opened on wear plate 4 and are opened in bracket 5
On interface channel, the arrival end of oil-recovery tank is connected to high pressure chest 16, and the outlet end of oil-recovery tank passes through interface channel and back pressure cavity
12 connections, back pressure cavity 12 are connected to draining relief hole 405.
Drainback passage includes the oil-recovery tank being opened on wear plate 4 and the interface channel that is opened on bracket 5, high pressure chest
Lubricating oil in 16 and refrigerant enter back pressure cavity 12 by oil-recovery tank, when draining relief hole 405 intermittently with screw compressor
Oil excessive in back pressure cavity 12 and refrigerant are drained into low pressure chamber 11 when low pressure chamber 11 is connected to, the purpose of draining pressure release is realized, carries on the back
The effect of pressure chamber 12 is reliably realized.
Optionally embodiment, oil-recovery tank include the first oil-recovery tank 402, oil return gas pressure relief slot 403 and the second oil-recovery tank
404, the first oil-recovery tank 402 is connected to by oil return gas pressure relief slot 403 with the second oil-recovery tank 404, the first oil-recovery tank 402 and high pressure chest 16
Connection, the second oil-recovery tank 404 are connected with interface channel.
First oil-recovery tank 402 is connected to high pressure chest 16, and the second oil-recovery tank 404 is connected with interface channel, and the first oil return
Slot 402 is connected to by oil return gas pressure relief slot 403 with the second oil-recovery tank 404, and structure is simple, high reliablity.
Optionally embodiment, interface channel include radial passages 502 and the annular that is connected to radial passages 502
Channel 503, oil-recovery tank are connected to radial passages 502, draining relief hole 405 and 503 phase of radial passages 502 or circular passage
Even.
It is connected with radial passages 502 with oil-recovery tank, when pressure rise in back pressure cavity 12, radial passages 502 are held up
All directions uniform force when wear plate 4, it is steady reliable；Each channel of radial passages 502 is connected with circular passage 503,
The consistency for guaranteeing interface channel fluid everywhere, the problems such as preventing leakage caused by pressure imbalance.
Optionally embodiment, offers multiple first air intake passages 501 on bracket 5, the first air intake passage 501 with
2 end face of quiet disk of screw compressor is connected to, and forms direct absorbing type air suction structure.
Aspirated mode is optimized for direct absorbing type by traditional side-suction type, inspiratory resistance is reduced, reduces power consumption, improving performance.
Optionally embodiment offers multiple second air-breathings corresponding with the first air intake passage 501 on wear plate 4
Channel 401.
Optionally embodiment, multiple first air intake passages 501 are circumferentially distributed at the outer rim of bracket 5, multiple
Second air intake passage 401 is circumferentially distributed at the outer rim of wear plate 4.
Multiple first air intake passages 501 are circumferentially distributed at the outer rim of bracket 5, and multiple second air intake passages 401 are along week
To being distributed at the outer rim of wear plate 4, sealing and the circulation of fluid channel are not influenced, it is noiseless.
The present invention provides a kind of screw compressors, including quiet disk 2, Moving plate 3 and any of the above draining pressure relief.
To the timely draining of back pressure cavity 12, pressure release in compressor operational process, make the oil content and back pressure cavity in back pressure cavity 12
12 pressure maintain a certain range, to realize the effect of due balance 3 axial force of Moving plate of back pressure cavity 12, while by aspirated mode
Direct absorbing type is optimized for by side-suction type, reduces inspiratory resistance, reduces power consumption, improving performance.
As shown in figure 5, the low pressure refrigerant in low pressure chamber 11 passes through the suction of bracket 5 and wear plate 4 when screw compressor is run
Gas channel 401 enters the pump housing, enters high pressure chest 16 after the Moving plate 3 of the pump housing and quiet disk 2 compress, due to containing in gaseous coolant
Lubricating oil, high pressure refrigerant is separated oil, gas by oil distributing pipe in high pressure chest 16, and the gaseous coolant after separation is arranged by oil distributing pipe
Out, the liquid lubricant after separation and partial high pressure gaseous coolant pass through oil cleaner screen 15 and enter quiet 2 oil return hole 201 of disk, and through hair
Thin oil return hole 202 carries out a degree of pressure release, and lubricating oil and refrigerant enter back pressure cavity 12.
Back pressure cavity 12 is by Moving plate 3,3 bearing of Moving plate, wear plate 4, bracket 5, bracket bearing 6, circlip 7, oil sealing, crankshaft
10, the cavity that the parts such as eccentric bushing 13 are formed.4 outer ledge position of wear plate is squeezed by quiet disk 2 and bracket 5 and is fixed.
After lubricating oil and refrigerant after pressure release enter back pressure cavity 12, the pressure rise of back pressure cavity 12, back pressure cavity 12
Pressure pushes Moving plate 3 to make it close to quiet disk 2, and effect is the part axial force and tilting moment offsetting Moving plate 3 and being born, simultaneously
So that the radial clearance between sound disk 2 is become smaller, reduces the refrigerant internal leakage of pump body compression process.
As shown in figure 3, being provided with air intake passage 501 on bracket 5, air intake passage 501 is connected to quiet 2 end face of disk, it can be achieved that pump
End face is directly sucked in refrigerant when body compresses, and inspiratory resistance is small, low in energy consumption；5 end face of bracket is provided with radial passages 502 and annular
Channel 503, effect are that the refrigerant when the pressure rise in back pressure cavity 12, in radial passages 502 and circular passage 503 can
Wear plate 4 is held up, the flange at itself and 3 back side of Moving plate is fitted closely, guarantees that back pressure cavity 12 effectively seals.
As shown in figure 4, being provided with the air intake passage 401 to match with bracket 5 on wear plate 4, it is provided with and is returned with quiet disk 2
The first oil-recovery tank 402 that oilhole 201 matches, though the lubricating oil and part refrigerant that flow back from high pressure chest 16 are by quiet 2 capillary of disk
A degree of pressure release of oil return hole 202, but pressure is still higher, so being equipped with oil return gas pressure relief slot 403 on wear plate 4.It returns
The other end of oily gas pressure relief slot 403 is equipped with the second oil-recovery tank 404, is connected to 5 radial channel 502 of bracket.First on wear plate 4
Oil-recovery tank 402, oil return gas pressure relief slot 403, the second oil-recovery tank 404 and quiet 2 end face of disk, 5 end face of bracket form oil return main channel.It is wear-resisting
4 oil-recovery tank size of piece matches the width of end face no more than quiet disk 2 and bracket 5, to guarantee drainback passage No leakage.Wear plate
4 are additionally provided with draining relief hole 405, the position of draining relief hole 405 and the radial passages 502 of bracket 5 or the company of circular passage 503
It is logical.The position of draining relief hole 405 also needs to be limited in the flange operating that Moving plate 3 is contacted with wear plate 4 when Moving plate 3 does revolution translation
In envelope, so that 405 part-time of draining relief hole and low pressure chamber 11 connect on wear plate 4 during Moving plate 3 is run one week
Logical, part-time is isolated with low pressure chamber 11；When draining relief hole 405 is connected to low pressure chamber 11 on wear plate 4, in back pressure cavity 12
Excessive oil and refrigerant can be expelled to low pressure chamber 11 by draining relief hole 405, to guarantee back pressure cavity 12 without excessive oil accumulation
And effective control can be obtained in the pressure of back pressure cavity 12.
The draining pressure release principle of back pressure cavity 12 as shown in Fig. 2, the lubricating oil and part refrigerant to flow back from high pressure chest 16 through quiet
2 oil return hole 201 of disk reaches the first oil-recovery tank 402 (a in figure) of wear plate 4, and enters the second oil-recovery tank through oil return gas pressure relief slot 403
404 (b in figure)；The radial passages 502 being connected to again by wear plate 4 with bracket 5 enter back pressure cavity 12 (c and d in figure).With pressure
The continuous operation of contracting machine, lubricating oil and refrigerant in back pressure cavity 12 can be more and more, and the pressure of back pressure cavity 12 is also increasing, when
Oil accumulation in back pressure cavity 12 is more than the position of draining relief hole 405 or when excessive 12 pressure of back pressure cavity on wear plate 4, can let out
Oily relief hole 405 is connected to moment part with low pressure chamber 11 and releases (e in figure).
Optionally embodiment, draining relief hole 405 are located at the operating envelope of Moving plate 3 Yu 4 contact portion of wear plate
In line.
The position of draining relief hole 405 also need to be limited in Moving plate 3 when Moving plate 3 does revolution translation contacted with wear plate 4 it is convex
In edge operating envelope line, so that during Moving plate 3 is run one week, 405 part-time of draining relief hole and low pressure on wear plate 4
Chamber 11 is connected to, and part-time is isolated with low pressure chamber 11, that is, ensure that intermittent connection.
The present invention provides a kind of new-energy automotive air-conditionings, including any of the above screw compressor.
Bracket 5 and wear plate 4 open up channel and draining relief hole 405, can prevent that 12 oil accumulation of back pressure cavity is excessive, pressure mistake
Greatly；It is opened up on bracket 5 and wear plate 4 air intake passage (501 and 401), realizes that pump housing sucking refrigerant is changed to by common side-suction type
Direct absorbing type, inspiratory resistance is small, low in energy consumption.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of draining pressure relief of screw compressor, which is characterized in that described wear-resisting including bracket (5) and wear plate (4)
It is offered on piece (4) draining relief hole (405), is formed with drainback passage between the bracket (5) and the wear plate (4), institute
High pressure chest (16) and back pressure cavity (12) that drainback passage can be connected to the screw compressor are stated, the draining relief hole (405) is even
Pass through the back pressure cavity (12)；The draining relief hole (405) is intermittently connected to the low pressure chamber of the screw compressor (11),
Oil excessive in the back pressure cavity (12) and/or refrigerant are drained into the low pressure chamber (11).
2. draining pressure relief according to claim 1, which is characterized in that the drainback passage is described resistance to including being opened in
The oil-recovery tank being ground on (4) and the interface channel being opened on the bracket (5), the arrival end of the oil-recovery tank and the height
Chamber (16) connection is pressed, the outlet end of the oil-recovery tank is connected to by the interface channel with the back pressure cavity (12), the back pressure
Chamber (12) is connected to the draining relief hole (405).
3. draining pressure relief according to claim 2, which is characterized in that the oil-recovery tank includes the first oil-recovery tank
(402), oil return gas pressure relief slot (403) and the second oil-recovery tank (404), first oil-recovery tank (402) pass through the oil return gas pressure relief slot
(403) it being connected to second oil-recovery tank (404), first oil-recovery tank (402) is connected to the high pressure chest (16), and described
Two oil-recovery tanks (404) are connected with the interface channel.
4. draining pressure relief according to claim 2, which is characterized in that the interface channel includes radial passages
(502) with the circular passage (503) that is connected to the radial passages (502), the oil-recovery tank and the radial passages (502)
Connection, the draining relief hole (405) are connected with the radial passages (502) or the circular passage (503).
5. draining pressure relief according to claim 1 to 4, which is characterized in that offered on the bracket (5) more
A first air intake passage (501), first air intake passage (501) are connected to quiet disk (2) end face of the screw compressor, shape
At direct absorbing type air suction structure.
6. draining pressure relief according to claim 5, which is characterized in that offered on the wear plate (4) with it is described
Corresponding multiple second air intake passages (401) of first air intake passage (501).
7. draining pressure relief according to claim 6, which is characterized in that multiple first air intake passage (501) edges
It is circumferentially distributed at the outer rim of the bracket (5), multiple second air intake passages (401) are circumferentially distributed in the wear plate
(4) at outer rim.
8. a kind of screw compressor, which is characterized in that including quiet disk (2), Moving plate (3) and as claimed in claim 1 to 7
Draining pressure relief.
9. screw compressor according to claim 8, which is characterized in that the draining relief hole (405) is located at described dynamic
In disk (3) and the operating envelope line of the wear plate (4) contact portion.
10. a kind of air conditioner, which is characterized in that including screw compressor described in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837306.5A CN110513293A (en) | 2019-09-05 | 2019-09-05 | Oil drainage pressure release structure, scroll compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910837306.5A CN110513293A (en) | 2019-09-05 | 2019-09-05 | Oil drainage pressure release structure, scroll compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110513293A true CN110513293A (en) | 2019-11-29 |
Family
ID=68631190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910837306.5A Pending CN110513293A (en) | 2019-09-05 | 2019-09-05 | Oil drainage pressure release structure, scroll compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110513293A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828326A (en) * | 2020-06-30 | 2020-10-27 | 广东美芝精密制造有限公司 | Compressor and refrigerating device |
| CN112610479A (en) * | 2020-11-23 | 2021-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240678A (en) * | 2004-02-26 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Compressor, air conditioner, and oil separator of compressor |
| CN202707504U (en) * | 2012-06-28 | 2013-01-30 | 陈冬长 | Compressor for realizing oil return quantity control of dual-channel backpressure cavity |
| CN203404080U (en) * | 2013-08-16 | 2014-01-22 | 陈冬长 | Rigid back pressure type scroll compressor |
| CN206503716U (en) * | 2017-01-25 | 2017-09-19 | 珠海凌达压缩机有限公司 | Compressor support, compressor and electric automobile |
| CN207830127U (en) * | 2017-12-29 | 2018-09-07 | 广东兴泽尔新能源科技有限公司 | The compression mechanism of screw compressor |
| CN208281168U (en) * | 2018-04-14 | 2018-12-25 | 广州动安汽车压缩机有限公司 | A kind of screw compressor |
| CN210565107U (en) * | 2019-09-05 | 2020-05-19 | 珠海凌达压缩机有限公司 | Oil drainage pressure release structure, scroll compressor and air conditioner |
-
2019
- 2019-09-05 CN CN201910837306.5A patent/CN110513293A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240678A (en) * | 2004-02-26 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Compressor, air conditioner, and oil separator of compressor |
| CN202707504U (en) * | 2012-06-28 | 2013-01-30 | 陈冬长 | Compressor for realizing oil return quantity control of dual-channel backpressure cavity |
| CN203404080U (en) * | 2013-08-16 | 2014-01-22 | 陈冬长 | Rigid back pressure type scroll compressor |
| CN206503716U (en) * | 2017-01-25 | 2017-09-19 | 珠海凌达压缩机有限公司 | Compressor support, compressor and electric automobile |
| CN207830127U (en) * | 2017-12-29 | 2018-09-07 | 广东兴泽尔新能源科技有限公司 | The compression mechanism of screw compressor |
| CN208281168U (en) * | 2018-04-14 | 2018-12-25 | 广州动安汽车压缩机有限公司 | A kind of screw compressor |
| CN210565107U (en) * | 2019-09-05 | 2020-05-19 | 珠海凌达压缩机有限公司 | Oil drainage pressure release structure, scroll compressor and air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828326A (en) * | 2020-06-30 | 2020-10-27 | 广东美芝精密制造有限公司 | Compressor and refrigerating device |
| CN111828326B (en) * | 2020-06-30 | 2022-03-01 | 广东美芝精密制造有限公司 | Compressor and refrigerating device |
| US11971036B2 (en) | 2020-06-30 | 2024-04-30 | Guangdong Meizhi Precision-Manufacturing Co., Ltd. | Compressor and refrigeration device with an oil return channel having a first relative distance to an inner-side wall |
| CN112610479A (en) * | 2020-11-23 | 2021-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
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