CN208330729U - Compressor pump, compressor and air conditioner - Google Patents
Compressor pump, compressor and air conditioner Download PDFInfo
- Publication number
- CN208330729U CN208330729U CN201820864862.2U CN201820864862U CN208330729U CN 208330729 U CN208330729 U CN 208330729U CN 201820864862 U CN201820864862 U CN 201820864862U CN 208330729 U CN208330729 U CN 208330729U
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- Prior art keywords
- compressor
- slide plate
- back pressure
- compressor pump
- upper flange
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a kind of compressor pump, compressor and air conditioner.Compressor pump includes: main shaft, and central part is provided on the main shaft, is provided with sliding vane groove and lubrication delivery passage on the central part；Cylinder, the cylinder are set in the periphery of the central part；Upper flange, the upper flange are set on the main shaft, and the upper flange is located at the upper surface of the cylinder, and the first back pressure slot being connected to the sliding vane groove is provided on the upper flange, and the transfer passage is connected to the first back pressure slot；Pull out depressed structure, the outside for pulling out gas structure setting and the gas in the first back pressure slot is emitted on the upper flange compressor pump.The case where pasta that the utility model can be avoided lubricating oil is lower than the upper surface of slide plate appearance, it is ensured that slide plate back pressure is stable, fluctuation is small, can be improved the operational reliability of compressor pump and the compressor with it.
Description
Technical field
The utility model relates to air-conditioning technical fields, in particular to a kind of compressor pump, compressor and air-conditioning
Device.
Background technique
In rotary blade type compressor operational process, slide plate gradually stretches out under the action of the power such as back pressure and centrifugal force, is close to
Cylinder inner wall starts gradually to retract when reaching farthest again, and in cycles, tail portion sliding vane groove volume is also first increases and then decreases
Cyclically-varying.In multiple slide plates, synchronization has slide plate stretching, has slide plate to retract, and slide plate tail chamber volume changes width
The relatively single slide plate tail portion volume variation of degree can reduce, but there is fluctuation, and Fig. 1 show three slide vane structure slide plate tail chambers appearance
Product change curve.
Since the initial oil level in compression case body is normally at cylinder upper surface (or upper flange large end face) hereinafter, compression
It is gaseous coolant inside upper flange back pressure slot when machine not running.When compressor starts operation, oil is under oil pump effect in oil sump
Into spindle hole, flange back pressure slot, original flange back pressure slot knot are entered by the side opening oilhole that spindle hole connects
Structure is blind hole structure, and when slide plate tail chamber volume reduces, pasta needs to ascend into upper flange back pressure slot.In upper flange back pressure slot
The gaseous coolant having be compressed into it is identical as oil pressure after, it is oily then be difficult to enter back into upper flange back pressure slot and (need gas pressure
Then will lead to oil when further being promoted, but slightly being promoted to reveal by each fit-up gap of the pump housing or lubrication channel), eventually lead to oil
There is no upper flange back pressure slot is full of, upper flange back pressure slot volume is not fully used, and be easy to cause part refrigerant molten
Solution is in the oil.
Additionally, due to the compressibility of gas, with the cyclically-varying of slide plate tail chamber volume, slide plate tail chamber pasta can be sent out
Changing is likely lower than slide plate tail chamber height (i.e. pasta did not have slide plate height completely), slide plate lower end occurs for oil, upper end
For gaseous coolant.And refrigerant compressibility is strong, pressure is easy fluctuation, causes slide plate big by fluctuation, it is possible to create slide plate head
It is unstable with cylinder inner wall stress, in addition situations such as be detached from, and then slide plate is caused to hit cylinder inner wall, influencing compressor can
By property.
It is therefore desirable to optimize for slide plate tail cavity pressure stability, guarantee compressor reliability.
Utility model content
The main purpose of the utility model is to provide a kind of compressor pump, compressor and air conditioners, existing to solve
The problem of poor reliability of compressor in technology.
To achieve the goals above, one aspect according to the present utility model provides a kind of compressor pump, comprising:
Main shaft is provided with central part on the main shaft, is provided with sliding vane groove and lubrication delivery passage on the central part；Cylinder, institute
State the periphery that cylinder is set in the central part；Upper flange, the upper flange are set on the main shaft, and the upper flange is located at
The upper surface of the cylinder is provided with the first back pressure slot being connected to the sliding vane groove, the transfer passage on the upper flange
It is connected to the first back pressure slot；Pull out depressed structure, it is described to pull out gas structure setting on the upper flange with by first back pressure
Gas in slot is emitted into the outside of the compressor pump.
Further, described to pull out depressed structure to pull out stomata, the first end for pulling out stomata is connected to the first back pressure slot,
The second end for pulling out stomata extends to the outside of the upper flange.
Further, the stomata that pulls out is the inclined hole being arranged on the upper flange or inverted L shape hole.
Further, the stomata that pulls out is one or two or two or more.
Further, the cross-sectional area for pulling out stomata is more than or equal to 1mm2。
Further, compressor pump further includes slide plate, and the slide plate is mounted in the sliding vane groove, the slide plate tail portion
It is enclosed with the sliding vane groove inner wall and sets to form slide plate tail chamber, the maximum volume of the slide plate tail chamber and the difference of minimum volume are V1, institute
The volume for stating the first back pressure slot is V2, wherein V2 >=V1.
Further, the compressor pump further includes lower flange, and the lower flange is located at the lower end surface of the cylinder, institute
It states and is provided with the second back pressure slot on lower flange, the second back pressure slot is connected to the sliding vane groove and the transfer passage.
Further, the compressor pump further includes oil pump and lower cover plate, and the lower cover plate is set on the main shaft
And it is located at the bottom of the lower flange, the bottom of the main shaft is arranged in the oil pump.
Further, the sliding vane groove and the slide plate are multiple, and the sliding vane groove and the slide plate are correspondingly
Setting.
Another aspect according to the present utility model, provides a kind of compressor, including the pump housing, and the pump housing is above-mentioned pressure
Contracting pump body.
It is according to the present utility model in another aspect, provide a kind of air conditioner, including compressor, the compressor is above-mentioned
Compressor.
Using the technical solution of the utility model, depressed structure is pulled out due to being provided on the upper flange in the utility model, when
When compressor pump body running, lubricating oil can be entered from transfer passage in the first back pressure slot, specifically, when slide plate direction is sliding
When film trap internal motion, since the gas in the first back pressure slot can be from the outside pulled out depressed structure and be emitted into compressor body, this
When, lubricating oil can enter in the first back pressure slot from transfer passage as much as possible, and oil reserve significantly increases, when main axis band
When during dynamic slide plate stretching sliding vane groove, the oil liquid in the first back pressure slot enters the cavity of the tail portion formation of sliding vane groove and slide plate
It is interior, in the process, since the oil reserve in the first back pressure slot increases, when oil liquid enters the tail portion shape of sliding vane groove and slide plate
At cavity in when, can be avoided lubricating oil pasta be lower than slide plate upper surface the case where appearance, it is ensured that slide plate back pressure
Stablize, fluctuate small, can be improved the operational reliability of compressor pump and the compressor with it.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 diagrammatically illustrates three slide vane structure slide plate tail chamber volume change curves of the existing pump housing；
Fig. 2 diagrammatically illustrates the exploded view of the compressor pump of the utility model；
Fig. 3 diagrammatically illustrates the cross-sectional view when compressor pump slide plate tail chamber volume minimum of the utility model；
Fig. 4 diagrammatically illustrates the cross-sectional view when compressor pump slide plate tail chamber volume maximum of the utility model；
The top view when cylinder that Fig. 5 diagrammatically illustrates the utility model is mounted on main shaft；
Fig. 6 diagrammatically illustrates the bottom view of the upper flange of the utility model；
Fig. 7 diagrammatically illustrates the top view of the lower flange of the utility model；
Fig. 8 diagrammatically illustrates the cross-sectional view of the first embodiment of the upper flange of the utility model；
Fig. 9 diagrammatically illustrates the cross-sectional view of the second embodiment of the upper flange of the utility model；
Figure 10 diagrammatically illustrates the cross-sectional view of the 3rd embodiment of the upper flange of the utility model；
Figure 11 diagrammatically illustrates the cross-sectional view of the fourth embodiment of the upper flange of the utility model；
Figure 12 diagrammatically illustrates the cross-sectional view when slide plate tail chamber volume minimum of existing compressor pump；
Figure 13 diagrammatically illustrates the cross-sectional view when slide plate tail chamber volume maximum of existing compressor pump.
Wherein, the above drawings include the following reference numerals:
10, main shaft；11, central part；12, sliding vane groove；13, transfer passage；14, slide plate tail chamber；20, slide plate；30, cylinder；
40, upper flange；41, the first back pressure slot；42, stomata is pulled out；50, lower flange；51, the second back pressure slot；60, oil pump；70, lower cover plate.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Embodiment according to the present utility model provides a kind of compressor, the especially vane of the compressor in the present embodiment
Formula compressor.
As recording in background technique, traditional sliding blade of rotary vane type compressor structure slide plate tail chamber volume is periodically
Variation, Fig. 1 show three slide plate slide plate tail chamber volumes with the change curve of corner.The oil pump of the profound firelight or sunlight formula compressor of tradition is tooth
Take turns oil pump, due to gear oil pump be positive displacement pump, compressor rotate a circle provided by oil mass be it is fixed, when slide plate tail chamber volume
When minimum, corresponding oil surface level highest, conversely, corresponding oil surface level is then minimum when slide plate tail chamber volume maximum.
Traditional rotary blade type compressor back-pressure structure, when slide plate tail chamber volume minimum, oil surface level is illustrated such as Figure 12 institute
Show；When volume becomes larger, then pasta is likely to occur that (i.e. pasta did not have slide plate 20 high completely lower than 20 upper surface of slide plate
Degree), as shown in figure 13,20 lower end of slide plate is oil, and upper end is gaseous coolant.And refrigerant compressibility is strong, pressure is easy fluctuation, leads
Cause slide plate 20 big by fluctuation, it is possible to create 20 head of slide plate and 30 inner wall stress of cylinder are unstable, or even the feelings such as occur being detached from
Condition, and then slide plate 20 is caused to hit, influence compressor reliability.
The structure to compressor pump in order to solve the above problem existing for existing compressor pump, in the present embodiment
Improved, referring to fig. 2 to shown in Figure 13, the compressor pump in the present embodiment include main shaft 10, slide plate 20, cylinder 30,
Upper flange 40 and pull out depressed structure.
Wherein, it is provided with central part 11 on main shaft 10, sliding vane groove 12 is provided on the central part 11 and lubricating oil conveying is logical
Road 13；Slide plate 20 is mounted in sliding vane groove 12；Cylinder 30 is set in the periphery of central part 11；Upper flange 40 is set in main shaft 10
On, upper flange 40 is located at the upper surface of cylinder 30, and the first back pressure slot 41 being connected to sliding vane groove 12 is provided on upper flange 40, defeated
Channel 13 is sent to be connected to the first back pressure slot 41；Gas structure setting is pulled out on upper flange 40 to arrange the gas in the first back pressure slot 41
It puts to the outside of compressor pump.
Depressed structure is pulled out by being provided on upper flange 40 in this present embodiment, when compressor pump body running, lubricating oil can
To be entered in the first back pressure slot 41 from transfer passage 13, specifically, when slide plate 20 is towards 12 internal motion of sliding vane groove, by
It can be from the outside pulled out depressed structure and be emitted into compressor body, at this point, lubricating oil can use up in the gas in the first back pressure slot 41
It is possibly entered in the first back pressure slot 41 from transfer passage 13, oil reserve significantly increases, and drives slide plate 20 when main shaft 10 rotates
When during stretching sliding vane groove 12, the oil liquid in the first back pressure slot 41 enters the sky of the tail portion formation of sliding vane groove 12 and slide plate 20
It is intracavitary, in the process, since the oil reserve in the first back pressure slot 41 increases, when oil liquid enters sliding vane groove 12 and slide plate 20
Tail portion formed cavity in when, can be avoided lubricating oil pasta be lower than slide plate 20 upper surface the case where appearance, Ke Yibao
Card 20 back pressure of slide plate is stable, fluctuation is small, can be improved the operational reliability of compressor pump and the compressor with it.
The depressed structure that pulls out in the present embodiment is to pull out stomata 42, which is connected to the first back pressure slot 41,
The second end for pulling out stomata 42 extends to the outside of upper flange 40, convenient for the gas in the first back pressure slot 41 to be discharged, increases by first
The oil reserve of back pressure slot 41, structure is simple, is easy to implement.
During actual design, the stomata 42 that pulls out in the present embodiment can be the inclined hole being arranged on upper flange 40,
As shown in Figure 8 and Figure 9, certainly, in the other embodiments of the utility model, it can also will pull out stomata 42 and be set as inverted L
Shape hole, as shown in Figure 10 and Figure 11.In the other embodiments of the utility model, it can also will pull out stomata 42 and be set as curved shape
Through-hole, as long as the gas in the first back pressure slot 41 can be emitted into other distressed structures of the outside of compressor pump,
It is within the protection scope of the utility model.
Preferably, the stomata 42 that pulls out in the present embodiment can be set to one (as shown in figs), also can be set
For two or more (as shown in figures 9 and 11).
The cross-sectional area for pulling out stomata 42 in the present embodiment is more than or equal to 1mm2, being on the one hand convenient for will be in the first back pressure slot 41
Gas discharge, on the other hand, since lubricating oil viscosity is bigger, when the lubrication Chuck Steak in the first back pressure slot 41, also just
In by the outside of Grease relief to compressor pump, avoid compressor pump that abnormal sound occurs.
20 tail portion of slide plate and sliding slot inner wall in the present embodiment, which are enclosed, to be set to form slide plate tail chamber 14, the maximum of the slide plate tail chamber 14
The difference of volume and minimum volume is V1, and the volume of the first back pressure slot 41 is V2, when design, so that V2 >=V1.When slide plate tail chamber 14
When volume starts to increase, since the oil reserve of the first back pressure slot 41 itself is big, pasta decline, since volume V1 is less than or equal to first
41 oil storage volume V2 of back pressure slot, so slide plate tail chamber 14 can still guarantee as full oily in slide plate tail 14 volume maximum of chamber
State, as shown in figure 4, the case where pasta that can be avoided lubricating oil is lower than the upper surface of slide plate 20 appearance, it is ensured that slide plate 20
Back pressure is stable, fluctuation is small, can be improved the operational reliability of compressor pump and the compressor with it.
Compressor pump in the present embodiment further includes lower flange 50, oil pump 60 and lower cover plate 70, which is located at
The lower end surface of cylinder 30, lower cover plate 70 is set in the bottom on main shaft 10 and being located at lower flange 50, convenient for on lower flange 50
Refrigerant passage is sealed.When installation, lower cover plate 70, upper flange 40 and lower flange 50 and cylinder 30 are consolidated by bolt assembly
It is scheduled on together, it is simple and fast, the second back pressure slot 51 is provided on lower flange 50, the second back pressure slot 51 and sliding vane groove 12 and conveying are logical
Road 13 is connected to, by the effect of transfer passage 13, convenient for conveying lubricating oil into the second back pressure slot 51, so to slide plate 20 into
Row lubrication.The bottom of main shaft 10 is arranged in oil pump 60, convenient for the oil liquid compressed in motor spindle oil sump to be pumped on main shaft 10
In transfer passage 13.
Preferably, the oil pump 60 in the present embodiment is gear oil pump, certainly, in the other embodiments of the utility model,
Other oil pump structures can also be set by oil pump 60, as long as other modes of texturing under the design of the utility model,
It is within the protection scope of the utility model.
Preferably, the sliding vane groove 12 in the utility model and slide plate 20 are multiple, and sliding vane groove 12 and slide plate 20 1 are a pair of
It is arranged with answering.It is shown in Figure 5,3 are set by sliding vane groove 12 and slide plate 20 in the present embodiment.
According to above-mentioned structure it is recognised that first back pressure slot of the compressor pump of the utility model on upper flange 40
41 tops, which open up, pulls out stomata 42 (as shown in Figure 2), is connected to high pressure gas in compressor pump body, when 14 volume of slide plate tail chamber is minimum
When, gas is discharged to that compressor pump is external, and oil surface level improves than before in the first back pressure slot 41 on upper flange 40, can be with
Full of entire slide plate tail chamber 14, oil reserve significantly increases compared with before-improvement, as shown in Figure 3.
14 volume fluctuations size of slide plate tail chamber is V1 (difference of slide plate tail chamber 14 volume maximum value and minimum value in Fig. 1), on
41 volume of the first back pressure slot on flange 40 is V2, design requirement V2 >=V1.At this time when 14 volume of slide plate tail chamber starts to increase,
Since oil reserve itself is big, pasta decline, volume V1 is less than or equal to 41 oil storage volume V2 of the first back pressure slot, so in slide plate tail chamber
When 14 volume maximum, slide plate tail chamber 14 can also guarantee as full oil condition, as shown in Figure 4.
Another aspect according to the present utility model, provides a kind of air conditioner, including compressor, and compressor is above-mentioned implementation
Compressor in example.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
The slide plate tail chamber of the compressor pump of the utility model is in full oil condition always, guarantees compressor operational process
In, slide plate tail chamber is constantly in full oil condition, it is ensured that slide plate tail portion pressure is stablized, and fluctuation is small, prevents pressure instability
Surely cause slide plate head and cylinder inner wall to be detached from, improve compressor reliability, can effectively solve slide plate caused by back-pressure surges
Disengaging and Impact Problems, further increase compressor reliability.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (11)
1. a kind of compressor pump characterized by comprising
Main shaft (10) is provided with central part (11) on the main shaft (10), is provided with sliding vane groove (12) on the central part (11)
With lubrication delivery passage (13)；
Cylinder (30), the cylinder (30) are set in the periphery of the central part (11)；
Upper flange (40), the upper flange (40) are set on the main shaft (10), and the upper flange (40) is located at the cylinder
(30) upper surface is provided with the first back pressure slot (41) being connected to the sliding vane groove (12) on the upper flange (40), described
Transfer passage (13) is connected to the first back pressure slot (41)；
Pull out depressed structure, it is described to pull out gas structure setting on the upper flange (40) with by the gas in the first back pressure slot (41)
It is emitted into the outside of the compressor pump.
2. compressor pump according to claim 1, which is characterized in that it is described pull out depressed structure be pull out stomata (42), it is described
The first end for pulling out stomata (42) is connected to the first back pressure slot (41), and the second end for pulling out stomata (42) extends on described
The outside of flange (40).
3. compressor pump according to claim 2, which is characterized in that described to pull out stomata (42) to be arranged in the upper method
Inclined hole or inverted L shape hole on blue (40).
4. compressor pump according to claim 2, which is characterized in that it is described pull out stomata (42) be one or two or
It is more than two.
5. compressor pump according to claim 2, which is characterized in that the cross-sectional area for pulling out stomata (42) be greater than etc.
In 1mm2。
6. compressor pump according to any one of claim 1 to 5, which is characterized in that the compressor pump also wraps
It includes slide plate (20), the slide plate (20) is mounted in the sliding vane groove (12), slide plate (20) tail portion and the sliding vane groove
(12) inner wall, which encloses, sets to form slide plate tail chamber (14), and the maximum volume of the slide plate tail chamber (14) and the difference of minimum volume are V1, institute
The volume for stating the first back pressure slot (41) is V2, wherein V2 >=V1.
7. compressor pump according to any one of claim 1 to 5, which is characterized in that the compressor pump also wraps
It includes lower flange (50), the lower flange (50) is located at the lower end surface of the cylinder (30), and is provided on the lower flange (50)
Two back pressure slots (51), the second back pressure slot (51) are connected to the sliding vane groove (12) and the transfer passage (13).
8. compressor pump according to claim 7, which is characterized in that the compressor pump further include oil pump (60) and
Lower cover plate (70), the lower cover plate (70) is set in the bottom on the main shaft (10) and being located at the lower flange (50), described
Oil pump (60) is arranged in the bottom of the main shaft (10).
9. compressor pump according to claim 6, which is characterized in that the sliding vane groove (12) and the slide plate (20) are equal
To be multiple, the sliding vane groove (12) and the slide plate (20) are arranged correspondingly.
10. a kind of compressor, including the pump housing, which is characterized in that the pump housing pressure as claimed in any one of claims 1 to 9
Contracting pump body.
11. a kind of air conditioner, including compressor, which is characterized in that the compressor is compressor described in any one of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864862.2U CN208330729U (en) | 2018-06-05 | 2018-06-05 | Compressor pump, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820864862.2U CN208330729U (en) | 2018-06-05 | 2018-06-05 | Compressor pump, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330729U true CN208330729U (en) | 2019-01-04 |
Family
ID=64772950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820864862.2U Withdrawn - After Issue CN208330729U (en) | 2018-06-05 | 2018-06-05 | Compressor pump, compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump, compressor and air conditioner |
| CN111794963A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
-
2018
- 2018-06-05 CN CN201820864862.2U patent/CN208330729U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump, compressor and air conditioner |
| CN108757454B (en) * | 2018-06-05 | 2023-10-03 | 珠海格力电器股份有限公司 | Compressor pump body, compressor and air conditioner |
| CN111794963A (en) * | 2020-06-29 | 2020-10-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
| CN111794963B (en) * | 2020-06-29 | 2021-07-20 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
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