CN208734545U - Pump assembly and rotary compressor with it - Google Patents
Pump assembly and rotary compressor with it Download PDFInfo
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- CN208734545U CN208734545U CN201821261701.0U CN201821261701U CN208734545U CN 208734545 U CN208734545 U CN 208734545U CN 201821261701 U CN201821261701 U CN 201821261701U CN 208734545 U CN208734545 U CN 208734545U
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Abstract
The utility model discloses a kind of pump assembly and with its rotary compressor, pump assembly includes: crankshaft, and crankshaft is equipped with eccentric part；Cylinder, spaced first chamber and second chamber are limited in cylinder, and second chamber is equipped with auxiliary exhaust port and secondary air entry；First piston, first piston housing is on eccentric part and is rotatably arranged in first chamber；First chamber is separated into suction chamber and discharge chamber, the peripheral wall of suction chamber is equipped with the connecting hole being connected to second chamber for slide plate, first piston and slide plate cooperation；Second piston, second piston is located in second chamber with being reciprocally moveable, the piston rod of second piston passes through connecting hole to be only against on first piston to be driven and be moved back and forth by first piston, and second piston moves back and forth so that the volume of second chamber changes and auxiliary exhaust port and secondary air entry switching are opened.The pump assembly of the utility model is, it can be achieved that multi-stage compression or multi-cylinder compression, pump assembly is strong to the compressed capability of refrigerant, and work efficiency is high.
Description
Technical field
The utility model relates to the field of compressor more particularly to a kind of pump assembly and with its rotary compressor.
Background technique
In the related art, rotary compressor using more and more common, related technical personnel are for being applied to rotation
The requirement of the pump assembly of formula compressor is also higher and higher, but the compression type of most of pump assemblies is single, pump assembly
The working efficiency of compressed capability and pump assembly to refrigerant is to be improved.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model
One purpose is to propose a kind of pump assembly for rotary compressor, it can be achieved that multi-stage compression or multi-cylinder compression, pump housing group
Part is strong to the compressed capability of refrigerant, and work efficiency is high.
The utility model also proposes a kind of rotary compressor, including above-mentioned pump assembly.
According to the pump assembly for rotary compressor of the utility model embodiment, comprising: crankshaft, the crankshaft are equipped with
Eccentric part；Cylinder, spaced first chamber and second chamber are limited in the cylinder, and the cylinder is equipped with slide plate
Slot, the second chamber are equipped with auxiliary exhaust port and secondary air entry；First piston, the first piston housing is on the eccentric part
And it is rotatably arranged in the first chamber；Slide plate, the slide plate are located in the sliding vane groove with being reciprocally moveable, the cunning
The apex of piece is only against on the periphery wall of the first piston, and the first piston and slide plate cooperation are with by first chamber
Room is separated into suction chamber and discharge chamber, and the peripheral wall of the suction chamber is equipped with the connecting hole being connected to the second chamber；Second
Piston, the second piston are located in the second chamber with being reciprocally moveable, and the piston rod of the second piston passes through described
To be only against on the first piston to be driven and be moved back and forth by the first piston, the second piston moves back and forth connecting hole
So that the volume of the second chamber changes and the auxiliary exhaust port and the secondary air entry switching are opened.
According to the pump assembly for rotary compressor of the utility model embodiment, by the way that the second chamber is arranged on cylinder
Second piston is arranged in room in second chamber, and second piston is made to pass through connecting hole to be only against on first piston by the
The driving of one piston moves back and forth, to make pump assembly that can realize multi-stage compression or multi-cylinder compression, realizes a variety of compression types
Using can improve pump assembly to a certain extent to the compressed capability of refrigerant, expand the application range of pump assembly, improve pump
The flexibility that body component uses, and then can be improved the working efficiency of pump assembly.
Some embodiments according to the present utility model, the piston rod and the connecting hole clearance fit.
In some embodiments of the utility model, the peripheral wall of the inner wall cooperation of the second piston and the second chamber
It is equipped with oil groove, the second piston is equipped with the oilhole being connected to respectively with the connecting hole and the oil groove.
Specifically, the oil groove is formed as closed-loop shaped.
Some embodiments according to the present utility model, the second piston are slidably matched with the inner wall of the second chamber
Part be equipped with weight loss groove.
In some embodiments of the utility model, the weight loss groove be located at the second piston towards the cylinder
On the side wall at center.
Further, the weight loss groove is formed about the annular groove that the piston rod extends.
Some embodiments according to the present utility model, the periphery wall of the cylinder is equipped with to be cut with what the second chamber was connected to
Mouthful, the incision is equipped with valve board assembly, and the auxiliary exhaust port and the secondary air entry are respectively provided on the valve board assembly.
Some embodiments according to the present utility model, the central axis of the central axis of the second chamber and the slide plate
Between angle be α, the α meets: 15 °≤α≤45 °.
According to the rotary compressor of the utility model embodiment, comprising: pump assembly, the pump assembly are according to this reality
With the pump assembly for rotary compressor of novel above-described embodiment；Electric machine assembly, the crankshaft and the electric machine assembly phase
Even rotated with being driven by the electric machine assembly.
According to the rotary compressor of the utility model embodiment, by the way that the pump according to the utility model above-described embodiment is arranged
Body component realizes the application of a variety of compression types, can improve rotation to a certain extent, it can be achieved that multi-stage compression or multi-cylinder compression
Compressor expands the application range of rotary compressor to the compressed capability of refrigerant, improves the flexibility that rotary compressor uses, into
And it can be improved the working efficiency of rotary compressor.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the schematic diagram according to the pump assembly of the utility model embodiment；
Fig. 2 is the wherein pump assembly compression refrigerant according to the sectional view of the pump assembly of the utility model embodiment；
Fig. 3 is according to the sectional view of the pump assembly of the utility model embodiment, and wherein pump assembly aspirates refrigerant.
Appended drawing reference:
Pump assembly 100；
Crankshaft 1；Eccentric part 11；
Cylinder 2；First chamber 21；Suction chamber 21a；Discharge chamber 21b；Connecting hole 21c；Second chamber 22；
Sliding vane groove 23；Notch 24；
First piston 3；
Slide plate 4；
Second piston 5；Piston rod 51；Oil groove 52；Oilhole 53；Weight loss groove 54；
Valve board assembly 6；Suction and discharge valve plate 61；Suction and discharge cavity plate 62；Cavity 62a；
Base bearing 7；
Supplementary bearing 8.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " length ", " thickness ", "upper", "lower",
The orientation or positional relationship of the instructions such as "inner", "outside", " axial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, limiting
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features.In the utility model
Description in, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Pump below with reference to Fig. 1-Fig. 3 description according to the utility model embodiment for rotary compressor (not shown go out)
Body component 100.
As shown in Figure 1-Figure 3, according to the pump assembly 100 for rotary compressor of the utility model embodiment, comprising:
Crankshaft 1, cylinder 2, first piston 3, slide plate 4 and second piston 5.
Specifically, crankshaft 1 is equipped with eccentric part 11.Spaced first chamber 21 and the second chamber are limited in cylinder 2
Room 22, cylinder 2 are equipped with sliding vane groove 23, and second chamber 22 is equipped with auxiliary exhaust port (not shown go out) and pair air entry is (not shown
Out).3 housing of first piston is on eccentric part 11 and is rotatably arranged in first chamber 21.That is, first piston 3 by
The driving rotation of eccentric part 11.
Slide plate 4 is located in sliding vane groove 23 with being reciprocally moveable, and the apex of slide plate 4 is only against on the periphery wall of first piston 3,
First piston 3 and the cooperation of slide plate 4 are to be separated into suction chamber 21a and discharge chamber 21b, the peripheral wall of suction chamber 21a for first chamber 21
It is equipped with the connecting hole 21c being connected to second chamber 22.That is, one end of slide plate 4 and first piston 3 cooperate with by first
Chamber 21 is divided into suction chamber 21a and discharge chamber 21b.It is understood that with first piston 3 under the driving of eccentric part 11
The volume of rotation in first chamber 21, suction chamber 21a and discharge chamber 21b are constantly changing.
Specifically, first chamber 21 is equipped with main air entry (not shown go out) and main vent (not shown out), wherein air-breathing
Chamber 21a has main air entry, and discharge chamber 21b has main vent.As a result, when cold media gas enters air-breathing by main air entry
After chamber 21a, with first piston 3 in the rotation in first chamber 21 so that the cold media gas in suction chamber 21a progresses into
In discharge chamber 21b, and under the rotary action of first piston 3, the volume of discharge chamber 21b gradually changes to realize to cold
The effect of gradually reducing of matchmaker, and then realize compression of the pump assembly 100 to refrigerant, the refrigerant of compressed high pressure can pass through main row
First chamber 21 is discharged in port, thereby may be ensured that the normal work of pump assembly 100.
It is known that pump assembly 100 further includes base bearing 7 and supplementary bearing 8.Base bearing 7 and supplementary bearing 8 are located at the upper of cylinder 2
Lower two sides.Wherein, the air intake passage being connected to main air entry may be provided on cylinder 2, base bearing 7 or supplementary bearing 8, with main exhaust
The exhaust passage of mouth connection may be provided on cylinder 2, base bearing 7 or supplementary bearing 8.For example, the air-breathing being connected to main air entry is logical
Road is located on supplementary bearing 8, and the exhaust passage being connected to main vent is located on base bearing 7.To be conducive to improve the in cylinder 2
The volume of one chamber 21 and second chamber 22, and then improve the ability of 100 compression refrigerant of pump assembly.It can guarantee the pump housing simultaneously
The reliability of 100 overall work of component.
Second piston 5 is located in second chamber 22 with being reciprocally moveable.The piston rod 51 of second piston 5 passes through connecting hole
To be only against on first piston 3 to be driven and be moved back and forth by first piston 3, second piston 5 moves back and forth so that second chamber 21c
22 volume changes and auxiliary exhaust port and secondary air entry switching are opened.
To, since suction chamber 21a is connected to by connecting hole 21c with second chamber 22, then in 21 air-breathing of first chamber,
Second piston 5 is increasingly towards suction chamber 21a movement with the rotation of first piston 3, and then increases the volume of second chamber 22,
So that the pressure in second chamber 22 is less than the pressure in 22 outside of second chamber, then under the action of pressure difference, secondary air entry quilt
It opens.It follows that first chamber 21 and second chamber 22 carry out air-breathing and compressed gas simultaneously.To at 3 turns of first piston
When one week dynamic, i.e., when the eccentric part 11 of crankshaft 1 rotates one week, second piston 5 does primary reciprocating movement in second chamber 22, by
This can make the eccentricity of twice of stroke of crankshaft 1 of second piston 5.
After secondary air entry is opened, refrigerant enters in second chamber 22 by secondary air entry, in the past of second piston 5
Under multiple migration, the volume of second chamber 22 gradually changes, so as to gradually carry out to the refrigerant in second chamber 22
Compression, and then realize compression of the pump assembly 100 to refrigerant, make second chamber after the refrigerant in second chamber 22 is compressed
When pressure in 22 is greater than the pressure in 22 outside of second chamber, auxiliary exhaust port is opened under the action of pressure difference, thus can incite somebody to action
Second chamber 22 is discharged in the refrigerant of high pressure.It thereby may be ensured that auxiliary exhaust port and the reliability that secondary air entry switching is opened, in turn
Guarantee the normal work of pump assembly 100.
It follows that in the pump assembly 100 of the utility model embodiment, when main vent is connected with secondary air entry,
Or auxiliary exhaust port when being connected with main air entry, it can be achieved that pump assembly 100 is to the Two-stage Compression of refrigerant.When first chamber 21 with
The air-breathing of second chamber 22 and when being vented mutually indepedent, it can be achieved that pump assembly 100 is to the twin-tub independent compression of refrigerant.Thus make
Pump assembly 100 can realize multi-stage compression or multi-cylinder compression, can improve compression of the pump assembly 100 to refrigerant to a certain extent
Ability realizes the application of a variety of compression types, expands the application range of pump assembly 100, improves the spirit that pump assembly 100 uses
Activity, and then can be improved the working efficiency of pump assembly 100.Herein it should be noted that " multistage " be meant that two-stage or
More than two-stage, " multi-cylinder " is meant that twin-tub or twin-tub or more.
It is understood that rotary compressor further includes electric machine assembly (not shown go out), the pump of the utility model embodiment
Body component 100 can be connected by crankshaft 1 with electric machine assembly so that crankshaft 1 drives rotation by electric machine assembly, to make using this reality
Power resources only can be provided by a motor with the rotary compressor of the pump assembly of new embodiment, so as in certain journey
The amount of parts for reducing rotary compressor on degree, reduces the volume and weight of rotary compressor, makes the structure of rotary compressor
It is compact, be conducive to the miniaturization and lightweight of rotary compressor, additionally it is possible to reduce the manufacture of rotary compressor to a certain extent
Cost.
It should be noted simultaneously that guarantee that the piston rod 51 of second piston 5 is often only against on first piston 3 by the
The driving of one piston 3 moves back and forth, then can be by guaranteeing pressure that the refrigerant in second chamber 22 generates second piston 5 greater than the
The pressure that one chamber 21 generates second piston 5 realizes, thus under the action of pressure difference, the piston rod 51 of second piston 5
It can guarantee and be often only against on first piston 3 to be driven and be moved back and forth by first piston 3.
According to the pump assembly 100 for rotary compressor of the utility model embodiment, by the way that is arranged on the cylinder 2
Second piston 5 is arranged in two chambers 22 in second chamber 22, and second piston 5 is made to pass through connecting hole 21c to be only against first
It is moved back and forth on piston 3 with being driven by first piston 3, thus make pump assembly 100 that can realize multi-stage compression or multi-cylinder compression, it is real
The application of existing a variety of compression types can improve pump assembly 100 to the compressed capability of refrigerant to a certain extent, expand pump housing group
The application range of part 100 improves the flexibility that pump assembly 100 uses, and then can be improved the work effect of pump assembly 100
Rate.
Some embodiments according to the present utility model, piston rod 51 and connecting hole 21c clearance fit.It thereby may be ensured that
The reliability and flexibility that two pistons 5 move back and forth in connecting hole 21c, at the same convenient for lubricating oil by piston rod 51 with connect
Gap between the 21c of hole enters second chamber 22, and then guarantees the reliability of 100 compression refrigerant of pump assembly, improves the pump housing
The reliability that component 100 works.
In some embodiments of the utility model, set on the peripheral wall that the inner wall of second piston 5 and second chamber 22 cooperates
There is oil groove 52, second piston 5 is equipped with the oilhole 53 being connected to respectively with connecting hole 21c and oil groove 52.To make lubricating oil that can lead to
Second piston 5 is crossed to enter in second chamber 22, at the same advantageously ensure that cooperate between second piston 5 and connecting hole 21c can
By property and flexibility, reduce the friction between second piston 5 and the inner wall of second chamber 22, and then guarantees that pump assembly 100 is pressed
The reliability of contracting refrigerant improves the reliability that pump assembly 100 works, can also extend pump assembly 100 to a certain extent
Service life.
Specifically, oil groove 52 is formed as closed-loop shaped.So as to guarantee between second piston 5 and the inner wall of second chamber 22
It can reliably be slidably matched, effectively reduce the friction between second piston 5 and the inner wall of second chamber 22, to be conducive to
Extend the service life of pump assembly 100, improves the reliability that pump assembly 100 works.Add simultaneously convenient for the production of oil groove 52
Work is conducive to the manufacture efficiency for improving pump assembly 100.
Some embodiments according to the present utility model, the portion of second piston 5 being slidably matched with the inner wall of second chamber 22
It is arranged with weight loss groove 54.So as to reduce the production material of second piston 5 to a certain extent, the system of pump assembly 100 is reduced
Make cost, also help the lightweight of pump assembly 100, improve portability that second piston 5 move in second chamber 22 with
Flexibility, while labour when operator installs pump assembly 100 can be reduced to a certain extent.
In some embodiments of the utility model, weight loss groove 54 is located at the side at the center towards cylinder 2 of second piston 5
On wall.It, can be with thus while mitigating the weight of second piston 5 that is, the opening of weight loss groove 54 is towards cylinder 2
Avoid to a certain extent second piston 5 influenced due to the setting of weight loss groove 54 second chamber 22 refrigerant is compressed it is uniform
Property.
Further, weight loss groove 54 is formed about the annular groove of the extension of piston rod 51.To make the structure of second piston 5
It is evenly distributed, processing, manufacture convenient for weight loss groove 54, while advantageously ensuring that second piston 5 is back and forth moved in second chamber 22
Dynamic reliability.
Some embodiments according to the present utility model, the periphery wall of cylinder 2 are equipped with the notch 24 being connected to second chamber 22,
Valve board assembly 6 is equipped at notch 24, auxiliary exhaust port and secondary air entry are respectively provided on valve board assembly 6.It thereby may be ensured that second
The reliability of 22 compression refrigerant of chamber, keeps the structure of pump assembly 100 relatively reliable, while being conducive to reduce pump assembly 100
Occupied space, improve pump assembly 100 self space utilization rate.
Specifically, valve board assembly 6 includes the suction and discharge valve plate 61 and suction and discharge cavity plate 62 positioned at 22 outer end of second chamber,
Suction and discharge cavity plate 62 is located at the inside of suction and discharge valve plate 61, and suction and discharge cavity plate 62 is passed through in the thickness direction thereof equipped with multiple
Wear its cavity 62a, the setting of the interval a plurality of cavities 62a, and one end of the close suction and discharge valve plate 61 of suction and discharge cavity plate 62
Equipped with gasket (not shown go out), suction and discharge valve plate 61 is equipped with inlet valve (not shown go out) and exhaust valve (not shown go out) to control
The disengaging of refrigerant in second chamber 22 processed.It thereby may be ensured that the reliability of valve board assembly 6, so that entering through secondary air entry
Refrigerant in second chamber 22 will be entered just in second chamber 22 after the cavity 62a in suction and discharge cavity plate 62 respectively.
The setting of gasket can guarantee the leakproofness of second chamber 22 to a certain extent.
Some embodiments according to the present utility model, between the central axis of second chamber 22 and the central axis of slide plate 4
Angle be α, when α meets: when 15 °≤α≤45 °, it is ensured that the first chamber 21 and second chamber 22 of pump assembly 100 are pressed
The reliability and consistency of contracting refrigerant, and then guarantee the reliability that pump assembly 100 works, be conducive to improve pump assembly 100
Working efficiency.
In some embodiments of the utility model, one end for being only against first piston 3 of second piston 5 is formed as arc
Face.It is contacted to make second piston 5 form line with first piston 3, and then second piston 5 and first can be improved to a certain extent
The flexibility that piston 3 is engaged guarantees the reliability that second piston 5 is moved back and forth by the driving of first piston 3.
Specifically, the central axis of first chamber 21 intersects with the central axis of second chamber 22.That is, second is living
Straight line where the path of the reciprocating movement of plug 5 passes through the center of cylinder 2.It thereby may be ensured that the piston rod 51 of second piston 5
Only it is against the reliability on first piston 3 to be moved back and forth by the driving of first piston 3.And then guarantee what pump assembly 100 worked
Reliability.
According to the rotary compressor of the utility model embodiment, comprising: pump assembly 100 and electric machine assembly.
Specifically, pump assembly 100 is the pump housing for rotary compressor according to the utility model above-described embodiment
Component 100.To make rotary compressor that can realize multi-stage compression or multi-cylinder compression, the application of a variety of compression types is realized, it can be
Rotary compressor is improved to a certain extent to the compressed capability of refrigerant, expands the application range of rotary compressor, improves rotation pressure
The flexibility that contracting machine uses, and then can be improved the working efficiency of rotary compressor.
Crankshaft 1 is connected to be driven and be rotated by electric machine assembly with electric machine assembly.So that the rotation of the utility model embodiment
Rotary compressor can only be that first piston 3 and second piston 5 provide power resources by a motor, so as to a certain extent
The amount of parts for reducing rotary compressor, reduces the volume and weight of rotary compressor, makes the compact-sized of rotary compressor,
Be conducive to the miniaturization and lightweight of rotary compressor, additionally it is possible to reduce the manufacturing cost of rotary compressor to a certain extent.
It is understood that the rotary compressor of the utility model embodiment can be used as single cylinder compressor or twin-tub compression
Machine can also be used as multicylinder compressor if pump assembly 100 is multiple (" more " herein refer to more than two).Simultaneously
The rotary compressor of the utility model embodiment is formed as determining frequency rotary compressor, can also be formed as frequency conversion rotary compression
Machine.And then rotary compressor is widely used.
According to the rotary compressor of the utility model embodiment, by the way that the pump according to the utility model above-described embodiment is arranged
Body component 100 is realized the application of a variety of compression types, can be improved to a certain extent, it can be achieved that multi-stage compression or multi-cylinder compression
Rotary compressor expands the application range of rotary compressor to the compressed capability of refrigerant, and raising rotary compressor uses flexible
Property, and then can be improved the working efficiency of rotary compressor.
According to other compositions of the rotary compressor of the utility model embodiment and operate for ordinary skill
All be for personnel it is known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (10)
1. a kind of pump assembly for rotary compressor characterized by comprising
Crankshaft, the crankshaft are equipped with eccentric part；
Cylinder, spaced first chamber and second chamber are limited in the cylinder, and the cylinder is equipped with sliding vane groove, institute
Second chamber is stated equipped with auxiliary exhaust port and secondary air entry；
First piston, the first piston housing is on the eccentric part and is rotatably arranged in the first chamber；
Slide plate, the slide plate are located in the sliding vane groove with being reciprocally moveable, and it is living that the apex of the slide plate is only against described first
On the periphery wall of plug, the first piston and the slide plate cooperate so that the first chamber is separated into suction chamber and discharge chamber,
The peripheral wall of the suction chamber is equipped with the connecting hole being connected to the second chamber；
Second piston, the second piston are located in the second chamber with being reciprocally moveable, the piston rod of the second piston
Across the connecting hole to be only against on the first piston to be driven and be moved back and forth by the first piston, the second piston
It moves back and forth so that the volume of the second chamber changes and the auxiliary exhaust port and the secondary air entry switching are opened.
2. the pump assembly according to claim 1 for rotary compressor, which is characterized in that the piston rod with it is described
Connecting hole clearance fit.
3. the pump assembly according to claim 2 for rotary compressor, which is characterized in that the second piston and institute
The peripheral wall for stating the inner wall cooperation of second chamber is equipped with oil groove, the second piston be equipped with respectively with the connecting hole and described
The oilhole of oil groove connection.
4. the pump assembly according to claim 3 for rotary compressor, which is characterized in that the oil groove is formed as closing
Annular.
5. the pump assembly according to claim 1 for rotary compressor, which is characterized in that the second piston with
The part that the inner wall of the second chamber is slidably matched is equipped with weight loss groove.
6. the pump assembly according to claim 5 in rotary compressor, which is characterized in that the weight loss groove is located at described
On the side wall at the center towards the cylinder of second piston.
7. the pump assembly according to claim 6 in rotary compressor, which is characterized in that the weight loss groove is formed as enclosing
The annular groove extended around the piston rod.
8. the pump assembly according to claim 1 for rotary compressor, which is characterized in that the periphery wall of the cylinder
Equipped with the notch being connected to the second chamber, the incision is equipped with valve board assembly, the auxiliary exhaust port and the secondary air-breathing
Mouth is respectively provided on the valve board assembly.
9. the pump assembly according to claim 1 to 8 for rotary compressor, which is characterized in that described
Angle between the central axis of two chambers and the central axis of the slide plate is α, and the α meets: 15 °≤α≤45 °.
10. a kind of rotary compressor characterized by comprising
Pump assembly, the pump assembly are according to the pump housing of any of claims 1-9 for rotary compressor
Component；
Electric machine assembly, the crankshaft are connected to be driven and be rotated by the electric machine assembly with the electric machine assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821261701.0U CN208734545U (en) | 2018-08-06 | 2018-08-06 | Pump assembly and rotary compressor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821261701.0U CN208734545U (en) | 2018-08-06 | 2018-08-06 | Pump assembly and rotary compressor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734545U true CN208734545U (en) | 2019-04-12 |
Family
ID=66028417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821261701.0U Active CN208734545U (en) | 2018-08-06 | 2018-08-06 | Pump assembly and rotary compressor with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360107A (en) * | 2019-06-28 | 2019-10-22 | 谷利伟 | Compressor |
-
2018
- 2018-08-06 CN CN201821261701.0U patent/CN208734545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360107A (en) * | 2019-06-28 | 2019-10-22 | 谷利伟 | Compressor |
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