CN211422906U - Compressor and automobile with same - Google Patents

Abstract

The utility model provides a compressor and have its car. The compressor includes a housing; the fixed scroll plate is arranged in the shell and is provided with a fixed scroll plate exhaust port; the front end cover is connected with the shell, the front end cover is provided with an oil-gas separation cavity and a high-pressure oil collection cavity, the oil-gas separation cavity is communicated with an exhaust port of the static scroll disk, the oil-gas separation cavity is provided with an exhaust passage, the high-pressure oil collection cavity is communicated with the oil-gas separation cavity, and the high-pressure oil collection cavity is provided with an oil return passage; at least part of the oil separating piece is arranged with a distance between the outer peripheral surface and the inner wall of the oil-gas separating cavity, after the refrigerant enters the oil-gas separating cavity and is subjected to oil-gas separation through the oil separating piece, formed gas is discharged out of the oil-gas separating cavity through the exhaust channel, and formed oil flows into the high-pressure oil collecting cavity. Because the oil-gas separation cavity and the high-pressure oil collecting cavity are formed in the front end cover, the mounting space and the filtering area of oil components and other components can be effectively increased, and the filtering efficiency of the refrigerant is improved.

Description

Compressor and automobile with same

Technical Field

The utility model relates to a compressor equipment technical field particularly, relates to a compressor and have its car.

Background

In the technical field of automobile air conditioners, a compressor for an automobile air conditioning system usually adopts a low-pressure cavity type scroll compressor, the compressor adopts a suction air lubrication mode, due to the rotation disturbance effect of a motor, refrigeration oil and a refrigerant are mixed to be changed into oil-gas mixed gas for compression, the refrigeration oil is discharged out of the compressor along with the suction and exhaust of the compressor and enters a refrigeration system of the automobile air conditioner, and due to the fact that the oil discharge rate of a horizontal compressor is high, excessive refrigeration oil enters the system and affects the refrigeration performance of the system. For this purpose, an oil-gas separation structure, an oil return channel and an oil filter structure are arranged at the exhaust end cover or on the exhaust channel. In addition, the pump compressor with the surface coated with the coating can produce surface abrasive dust, oil dirt, mud dirt and other impurities. The impurities can enter the moving contact surfaces of a bearing, a movable scroll plate and the like along the oil return channel along with the separated refrigeration oil to lubricate each friction pair or return the friction pairs to the oil storage area of the compressor. The impurities can damage the friction pair, so that the bearing abrasion is accelerated, the service life of the bearing is shortened, even the pump body is destructively damaged, and the reliability of the compressor is influenced.

The oil filter screen that exhausts is set up at exhaust lid, quiet back among the prior art, because the exhaust chamber occupies most space, it is limited to set up oil filter screen structural space, and the oil filter screen size of design is smaller, and inlays in oil return channel's aperture passageway, will block up filter screen or oil return channel for a long time, causes the poor problem of oily filter effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a compressor and have its car to solve the poor problem of compressor filter effect among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a compressor including: a housing; the fixed scroll is arranged in the shell and is provided with a fixed scroll exhaust port; the front end cover is connected with the shell and provided with an oil-gas separation cavity and a high-pressure oil collection cavity, the oil-gas separation cavity is communicated with an exhaust port of the static scroll disk, the oil-gas separation cavity is provided with an exhaust passage, the high-pressure oil collection cavity is communicated with the oil-gas separation cavity, and the high-pressure oil collection cavity is provided with an oil return passage; the oil separating piece is arranged in the oil-gas separation cavity, a distance is arranged between the outer peripheral surface of at least part of the oil separating piece and the inner wall of the oil-gas separation cavity, after refrigerant enters the oil-gas separation cavity and is subjected to oil-gas separation through the oil separating piece, formed gas is discharged out of the oil-gas separation cavity through the exhaust channel, and formed oil flows into the high-pressure oil collecting cavity.

Furthermore, a high-pressure exhaust cavity is formed between the front end cover and the fixed scroll, an air inlet channel is arranged between the oil-gas separation cavity and the high-pressure exhaust cavity, the oil separation piece is of a barrel-shaped structure, a filter hole is formed in the bottom of the oil separation piece, the open end of the oil separation piece is communicated with the exhaust channel, and the axis of the air inlet channel and the axis of the oil separation piece are arranged in an included angle mode, so that a refrigerant enters the oil-gas separation cavity through the air inlet channel and then acts on the outer wall of the oil separation piece to form rotating airflow.

Further, an oil storage chamber is formed between the bottom of the oil separation piece and the side wall of the oil-gas separation cavity, an oil through hole communicated with the high-pressure oil collection cavity is formed in the side wall or the bottom of the oil storage chamber, and the bottom of the oil storage chamber is located above the bottom of the high-pressure oil collection cavity along the axial direction of the oil separation piece.

Further, the axis of the oil through hole is perpendicular to or parallel to the axis of the oil distributing piece.

Furthermore, the oil return channel is arranged at the bottom or on the side wall of the high-pressure oil collecting cavity.

Further, an oil outlet filter screen is arranged at the communication position of the high-pressure oil collecting cavity and the oil return channel.

Furthermore, an oil inlet filter screen is arranged at the oil through hole.

Further, at least one of the oil outlet filter screen and the oil inlet filter screen is of an arc structure or a semi-cylindrical structure, and/or at least one of the oil outlet filter screen and the oil inlet filter screen is made of metal.

Further, the main body part of at least one of the oil outlet filter screen and the oil inlet filter screen is made of metal, and the periphery of the main body part is provided with a plastic structure used for wrapping the edge of the main body part, or the main body part of at least one of the oil outlet filter screen and the oil inlet filter screen is made of nonmetal, and the periphery of the main body part is provided with a metal structure used for wrapping the edge of the main body part.

Furthermore, a first groove is formed in the axis direction of the front end cover along the shell, a second groove is formed in the axis direction of the front end cover along the vertical shell, an oil-gas separation cavity is formed in the second groove, the outer peripheral face of the exhaust end of the oil separation piece is arranged in interference fit with the groove wall of the second groove, an oil pool cover plate is arranged in the front end cover and connected with the groove opening of the first groove, and a high-pressure oil collecting cavity is formed between the oil pool cover plate and the first groove.

Further, the compressor comprises an oil outlet filter screen, the oil outlet filter screen is arranged at the bottom of the high-pressure oil collecting cavity, and part of the filter screen is abutted to the oil pool cover plate.

Further, the compressor comprises an oil inlet filter screen, the oil through hole is formed in the bottom of the oil storage chamber, the oil inlet filter screen is of a barrel-shaped structure, and the outer surface of the opening end of the oil inlet filter screen is in interference fit with the inner wall of the outlet end of the oil through hole.

Further, the axis of the oil inlet filter screen is arranged in parallel with the axis of the oil distributing piece.

Further, the oil outlet filter screen main body is convexly arranged on the bottom surface of the high-pressure oil collecting cavity.

According to another aspect of the present invention, there is provided an automobile, comprising a compressor, wherein the compressor is the above-mentioned compressor.

Use the technical scheme of the utility model, through set up oil-gas separation chamber and high-pressure oil collecting chamber in the front end housing for oil body through oil content spare separation flows to the oil sump of compressor in through return channel backward flow behind the high-pressure oil collecting chamber. Because the oil-gas separation cavity and the high-pressure oil collecting cavity are formed in the front end cover, the mounting space and the filtering area of oil components and other components can be effectively increased, and the filtering efficiency of the refrigerant is improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic cross-sectional structural view of an embodiment of a compressor according to the present invention;

fig. 2 shows a schematic structural view of a first embodiment of a front end cap according to the present invention;

fig. 3 shows a schematic structural view of a second embodiment of a front end cover according to the present invention;

fig. 4 shows a schematic diagram of an explosion structure of an embodiment of a front end cover and a filter screen according to the present invention;

fig. 5 shows a schematic structural view of a third embodiment of a front end cover according to the present invention;

fig. 6 shows a schematic cross-sectional structure of a fourth embodiment of a front end cover according to the present invention;

fig. 7 shows a schematic structural view of a fifth embodiment of a front end cap according to the present invention;

fig. 8 shows a schematic structural view of a sixth embodiment of a front end cap according to the present invention;

fig. 9 shows a schematic cross-sectional structure of a seventh embodiment of a front end cover according to the present invention;

fig. 10 shows a schematic structural view of a first embodiment of an oil inlet filter screen according to the present invention;

fig. 11 shows a schematic structural view of an embodiment of an oil outlet filter screen according to the present invention;

fig. 12 shows a schematic structural view of an eighth embodiment of a front end cap according to the present invention;

fig. 13 shows a schematic cross-sectional structure of a ninth embodiment of a front end cover according to the present invention;

fig. 14 shows a schematic structural view of a tenth embodiment of a front end cap according to the present invention;

fig. 15 is a schematic structural view of a second embodiment of the oil inlet filter screen according to the present invention;

fig. 16 is a schematic structural view of an eleventh embodiment of the front end cover according to the present invention.

Wherein the figures include the following reference numerals:

1. a crankshaft; 2. a crank pin; 3. a support; 4. a housing; 5. a movable scroll pan;

6. a static scroll pan; 601. a static scroll exhaust port; 602. a static scroll oil return passage;

7. a front end cover; 71. a first groove; 72. a second groove;

701. an air intake passage; 702. an oil through hole; 703. an oil return passage; 704. oil filter screen fixing groove; 705. an oil sump cover plate support surface;

8. oil separating; 801. a central bore;

91. an oil outlet filter screen; 92. a filter screen is arranged at the oil inlet; 901. an edge portion; 902. an oil screen;

10. an oil sump cover plate; 11. a throttle member; 12. and (4) screws.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 16, according to an embodiment of the present application, a compressor is provided.

As shown in fig. 1 to 3, the compressor includes a casing 4, a fixed scroll 6, a front end cover 7, and an oil member 8. The fixed scroll 6 is provided in the casing 4, and the fixed scroll 6 is provided with a fixed scroll discharge port 601. The front end cover 7 is connected with the shell 4, the front end cover 7 is provided with an oil-gas separation cavity and a high-pressure oil collection cavity, the oil-gas separation cavity is communicated with the exhaust port 601 of the static scroll disk, the oil-gas separation cavity is provided with an exhaust passage, the high-pressure oil collection cavity is communicated with the oil-gas separation cavity, and the high-pressure oil collection cavity is provided with an oil return passage 703. The oil separating piece 8 is arranged in the oil-gas separation cavity, a distance is formed between the outer peripheral surface of at least part of the oil separating piece 8 and the inner wall of the oil-gas separation cavity, after a refrigerant enters the oil-gas separation cavity and is subjected to oil-gas separation through the oil separating piece 8, formed gas is discharged out of the oil-gas separation cavity through an exhaust passage, and formed oil flows into the high-pressure oil collecting cavity (shown as B in figure 1).

In this embodiment, an oil-gas separation cavity and a high-pressure oil collection cavity are arranged in the front end cover, so that the oil separated by the oil separator 8 flows into the high-pressure oil collection cavity and then flows back to the oil sump of the compressor through the oil return channel 703. Because the oil-gas separation cavity and the high-pressure oil collecting cavity are formed in the front end cover, the mounting space and the filtering area of the oil component 8 and other components can be effectively increased, and the filtering efficiency of the refrigerant is improved.

Wherein, form high-pressure exhaust cavity (as shown in a of fig. 1) between front end housing 7 and the fixed scroll 6, be provided with inlet passage 701 between oil-gas separation chamber and the high-pressure exhaust cavity, oil divides 8 to be the tubbiness structure, the bottom of oil branch 8 is provided with the filtration pore, the open end and the exhaust passage of oil branch 8 are linked together, inlet passage 701's axis and oil branch 8's axis have the contained angle to set up to it forms the whirl air current to make the refrigerant pass through inlet passage 701 and act on oil branch 8's outer wall after getting into oil-gas separation chamber. The oil-gas separation efficiency of the oil separation piece 8 can be improved by the arrangement.

An oil storage chamber is formed between the bottom of the oil separating piece 8 and the side wall of the oil-gas separation cavity, an oil through hole 702 communicated with the high-pressure oil collecting cavity is formed in the side wall or the bottom of the oil storage chamber, and the bottom of the oil storage chamber is located above the bottom of the high-pressure oil collecting cavity along the axial direction of the oil separating piece 8. The arrangement enables the oil body in the oil storage chamber to smoothly flow into the high-pressure oil collecting cavity. Here, the axis of the oil passage hole 702 may be provided perpendicular to or parallel to the axis of the oil member 8. The oil return channel 703 is opened on the bottom or the side wall of the high-pressure oil collecting cavity. In this embodiment, when the oil body is discharged through the oil return passage 703, the separated oil body needs to be filtered.

Specifically, as shown in fig. 4, 5, and 6, an oil outlet filter screen 91 is disposed at a communication position of the high-pressure oil collecting chamber and the oil return channel 703. The arrangement enables the oil body to be firstly discharged into the compressor through the oil outlet filter screen 91 when flowing into the oil return channel 703, so that the problem of reducing the service life of the compressor due to the fact that impurities in the oil body are discharged into the compressor through the oil return channel 703 is solved.

Further, as shown in fig. 7, 8 and 9, an oil inlet filter screen 92 is disposed at the oil passage hole 702, wherein fig. 8 is a state diagram when the oil inlet filter screen 92 is not mounted at the oil passage hole 702. The oil body that makes after the oil divides 8 separation of piece is before getting into the high pressure oil collection intracavity in the setting like this, and oil inlet filter screen 92 carries out the first filtration to the oil body, and when the oil body that is located the high pressure oil collection intracavity passes through return oil passageway 703 and discharges, oil outlet filter screen 91 oil body carries out the second filtration, sets up like this and can make the oil body carry out twice impurity-removing's filtration operation altogether, has improved the reliability of compressor effectively.

At least one of the oil outlet filter screen 91 and the oil inlet filter screen 92 is of an arc structure or a semi-cylindrical structure, and at least one of the oil outlet filter screen 91 and the oil inlet filter screen 92 is made of metal. Of course, in this embodiment, the main body portion of at least one of the oil outlet filter screen 91 and the oil inlet filter screen 92 may be made of metal, and the periphery of the main body portion is provided with a plastic structure for wrapping the edge of the main body portion, or the main body portion of at least one of the oil outlet filter screen and the oil inlet filter screen is made of nonmetal, and the periphery of the main body portion is provided with a metal structure for wrapping the edge of the main body portion. As shown in fig. 15, the periphery of the main body of the filter screen is provided with metal for wrapping the filter screen, or the periphery of the main body of the filter screen is provided with plastic for wrapping the main body of the filter screen.

As shown in fig. 1, the front cover 7 has a first groove 71 along the axial direction of the housing 4, and the front cover 7 has a second groove 72 along the axial direction perpendicular to the housing 4. The second groove 72 forms an oil-gas separation cavity, the outer peripheral surface of the exhaust end of the oil separation part 8 is arranged in interference fit with the groove wall of the second groove 72, an oil sump cover plate 10 is arranged in the front end cover 7, the oil sump cover plate 10 is connected with the notch of the first groove 71, and the end part of the notch forms an oil sump cover plate supporting surface 705 so that a high-pressure oil collection cavity is formed between the oil sump cover plate 10 and the first groove 71. Set up like this and can increase filterable installation space, prevent effectively then that the oil body from overflowing the passageway and cause stifled dead problem owing to the installation space is not enough.

According to another embodiment of the present application, the compressor includes an oil outlet filter screen 91, the oil outlet filter screen 91 is disposed at the bottom of the high-pressure oil collecting chamber, and part of the filter screen abuts against the oil sump cover plate 10. The arrangement can improve the installation stability of the oil outlet filter screen 91.

As shown in fig. 16, in the present embodiment, the compressor includes an oil inlet filter screen 92. The oil through hole 702 is arranged at the bottom of the oil storage chamber, the oil inlet filter screen 92 is of a barrel-shaped structure, and the outer surface of the opening end of the oil inlet filter screen 92 is in interference fit with the inner wall of the outlet end of the oil through hole 702. The oil inlet filter screen 92 can be installed stably. Wherein, the axis of the oil inlet filter screen 92 and the axis of the oil component 8 can be arranged in parallel.

Preferably, as shown in fig. 7, the oil outlet filter screen 91 is arranged on the bottom surface of the high-pressure oil collecting chamber in a protruding manner. The arrangement can improve the filtering area of the oil outlet filtering net 91.

The compressor in the above-mentioned embodiment can also be used for automotive equipment technical field, promptly according to the utility model discloses a further aspect provides an automobile, including the compressor, the compressor is the compressor in the above-mentioned implementation.

Specifically, propose to this phenomenon problem the utility model discloses the oil-gas separation return oil filtration and method that set up can the maximize set up the impurity in oily filter screen and the degree of depth filtration oil, promote the compressor reliability.

Adopt the compressor of this application, solved prior art compressor exhaust oil return and taken the impurity problem, realized the clean oil return of compressor degree of depth edulcoration, promoted the reliability of compressor effectively. The problem of because the terminal surface at exhaust front end housing and quiet dish laminating sets up oil return filter screen structure space narrow and small, design filter screen undersize and deposit miscellaneous ability poor, the filter screen easily blocks up is still solved.

Adopt the technical scheme of this application, can maximize design filter screen size, solve because of the part space is little and design the easy jam problem of small-size filter screen to can realize that one-level filtration, sediment, second grade are filtered, can the impurity in the deep filtration oil, effectively improve the vice lubricated wearing and tearing problem of each lubricated friction of compressor, improve compressor reliability.

In this application, establish the recess on the front end cover, recess upper portion is oil sump cover plate holding surface, and the oil sump cover plate is fixed on oil sump cover plate holding surface, and the recess constitutes high-pressure oil sump settling zone promptly high-pressure oil collecting chamber with the oil sump cover plate, and high-pressure oil sump settling zone is equipped with oil feed passageway mouth (import after the oil-gas separation), the access of producing oil (from the entry in the high-pressure oil sump district backflow compressor). In addition, an oil filter screen element is arranged at an oil inlet or an oil outlet of the oil pool settling zone.

The filter screen is semi-cylindrical annular structure or cylindrical annular structure, and the filter screen can be the portion of inlaying and filtering the silk screen that have metal or plastics material, and the filtering silk screen is inlayed and is fixed in the portion of inlaying of metal or plastics material. The filter screen can be fixed at the oil inlet or the outlet through the embedding part.

As shown in fig. 1, a crank pin 2 at an end of a crankshaft 1 is provided with a boss inserted into a bearing of a boss bearing chamber at a rear portion of an orbiting scroll 5. Under the operation of a motor-driven compressor shaft system, a movable scroll 5 and a fixed scroll 6 are mutually meshed to form a crescent compression cavity, air suction, compression and exhaust are continuously formed, compressed refrigerant gas enters an exhaust high-pressure area A after coming out of an exhaust port 601 of the fixed scroll and enters an oil-gas separation structure through an air inlet of an exhaust passage of a front end cover, the oil-gas separation structure comprises an oil separation cavity formed by the front end cover 7 and an oil separation member 8, the oil separation member is accommodated in the oil-gas separation cavity, the upper part of the oil separation member is fixed on the upper part of the oil separation cavity in an interference manner, and a space between the lower part of the oil separation member and the oil separation cavity is an. High-pressure and high-speed exhaust refrigerant gas (containing oil) enters a cyclone separation space through an air inlet of an exhaust passage, the refrigerant gas with low density rotates at high speed along the outer wall surface of the oil component 8 and flows downwards and is discharged out of the compressor through a central hole 801 of the oil component 8, and the lubricating oil gas with high density is thrown outwards and collides against the wall surface of an oil separation cavity due to centrifugal force under high-speed rotation, flows back downwards along the wall surface of the cavity and enters a high-pressure oil collecting tank through an oil hole 702. Because of the movable scroll disk and the static scroll disk can not avoid the generation of abrasive dust in the contact operation process, the abrasive dust mixed in the compressed exhaust gas can be discharged along with the exhaust gas, the density of the abrasive dust is higher, the abrasive dust is separated out along with the lubricating oil under the action of oil-gas separation, and therefore, the lubricating oil is necessary to be subjected to impurity removal after the oil-gas separation, the cleanliness of the separated lubricating oil can be ensured to flow back into the compressor, and the problem of the reliability of the compressor caused by impurities is avoided.

Specifically, the oil-gas separation oil return filtration structure of this application sets up filtration or deposits the deposit chamber and cleans the backward flow lubricating oil in the oil return passageway after the oil-gas separation. Setting a settling zone of the high-pressure oil tank: the front end cover 7 is provided with a groove, the upper part of the groove is provided with an oil pool cover plate supporting surface 705, the oil pool cover plate 10 is connected and fastened on the front end cover 7 through a screw 12, and the front end cover 7 and the oil pool cover plate 10 jointly form a high-pressure oil storage area. The high-pressure oil collecting pool area is arranged on the lubricating oil return passage after oil-gas separation, and the connecting oil storage pool area is provided with an oil through hole 702 and an oil return passage 703. The high pressure oil collecting pool area plays a role in precipitating and depositing impurities and is used for primary filtration and impurity removal.

The oil body filter screen sets up: an oil body filter screen element is arranged at the oil return channel 703 of the high-pressure oil collecting pool area, the oil body filter screen comprises an oil outlet filter screen and an oil inlet filter screen, wherein the oil outlet filter screen is a secondary filtering and impurity removing filter screen element. The oil outlet filter screen is of a semi-cylindrical annular structure and is provided with an embedded edge part 901 made of metal or plastic material and an annular oil filter screen 902, and the oil filter screen 902 is embedded and fixed in the metal or plastic. If the oil outlet filter screen 91 is arranged on the periphery of the oil return channel 703 of the front end cover oil storage pool and is axially arranged relative to the oil return channel 703, the oil outlet filter screen 91 is tightly expanded and embedded in an oil body filter screen fixing groove 704 on the periphery of the oil return channel 703 through an embedding edge portion 901, and the upper end of the embedded oil outlet filter screen is flush with the oil pool cover plate supporting surface 705 and is supported by the oil pool cover plate 10 for axial limiting and fixing.

In this embodiment, the lubricating oil separated in this way may be subjected to two-layer filtration to remove impurities, and the cleaned lubricating oil is throttled by a throttle 11 disposed in the oil return channel 703, and then reaches each lubricating friction pair or returns to a low-pressure oil storage area on the suction side of the compressor along the oil return channel disposed on the front end cover 7, the fixed scroll 6, the bracket 3, and the movable scroll 5. This embodiment is the secondary filter edulcoration, can effectively improve the cleanliness of lubricating oil, improve the compressor reliability.

In another embodiment of the application, the tertiary filtering structure can be realized by arranging the oil body filtering nets at the inlet and outlet of the high-pressure oil collecting area and the oil collecting area. The oil outlet filter screen 91 and the oil inlet filter screen 92 are both of a semi-cylindrical annular structure, and are provided with an embedded edge portion 901 made of metal or plastic and an annular oil filter screen 902, and the oil filter screen 902 is embedded and fixed in metal or plastic.

The oil inlet filter screen 92 is arranged on a groove of an oil through hole 702 of the front end cover oil collecting tank and is arranged along the axial direction of the oil component 8, and the oil inlet filter screen 92 is fixedly embedded with the groove of the oil through hole 702 through an embedding edge 901 or is fixedly riveted through the groove on the periphery of the oil through hole;

the oil outlet filter screen 91 is arranged on the periphery of an oil return channel 703 of the front end cover oil storage pool and is axially arranged relative to the oil return channel 703, the oil outlet filter screen 91 is tightly expanded and embedded in an oil body filter screen fixing groove on the periphery of the oil return channel 703 through an embedding edge portion 901, and the upper end of the embedded oil outlet filter screen 91 is flush with a supporting surface 705 of the oil pool cover plate and is supported by the oil pool cover plate 10 for axial limiting and fixing.

In this embodiment, the lubricating oil after oil-gas separation is provided with a large high-pressure oil collecting pool area on the oil return passage, and the oil through hole and the oil return passage 703 are provided on the connecting oil collecting area. And oil body filter screens are respectively arranged on the oil through hole and the oil return channel 703, so that the separated lubricating oil can pass through a first-stage filter screen for filtration, an oil pool for precipitation and deposition for filtration and a second-stage filter screen for filtration, the high-pressure oil after deep filtration contains less impurities, and then reaches each lubricating friction pair or flows back to a low-pressure oil storage area on the suction side of the compressor through throttling of the throttling piece 11 and the oil return channels arranged on the front end cover 7, the static scroll disk 6, the bracket 3 and the movable scroll disk 5. Multistage filtration is adopted to this embodiment, and the edulcoration effect is strong, improves the compressor reliability.

According to another embodiment of the application, the oil return channel 703 on the front end cover is arranged in the radial direction of the relative oil distribution piece, the oil body filter screen is provided with a circular wrapping metal part and an oil filter screen 902, the oil filter screen 902 is embedded and fixed in the wrapping metal part, and the oil body filter screen is fixed with the front end cover oil through hole 702 in an interference fit manner through circular outer ring wrapping metal.

The oil through hole 702 on the front end cover is arranged in the same axial direction relative to the oil component, and the oil filter screen is fixed with the oil through hole 702 of the front end cover in an interference fit manner through a circular outer ring wrapping metal part. The oil-gas separation device can realize deep impurity removal and cleaning of lubricating oil after oil-gas separation, and can play a role in improving the reliability of the compressor. The fixed scroll is provided with a fixed scroll oil return passage 602.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. A compressor, comprising:

a housing (4);

a fixed scroll (6), the fixed scroll (6) being disposed within the housing (4), the fixed scroll (6) having a fixed scroll exhaust port (601) disposed thereon;

the front end cover (7), the front end cover (7) is connected with the shell (4), the front end cover (7) is provided with an oil-gas separation cavity and a high-pressure oil collection cavity, the oil-gas separation cavity is communicated with the static scroll disk exhaust port (601), the oil-gas separation cavity is provided with an exhaust channel, the high-pressure oil collection cavity is communicated with the oil-gas separation cavity, and the high-pressure oil collection cavity is provided with an oil return channel (703);

the oil separating piece (8) is arranged in the oil-gas separation cavity, at least part of the outer peripheral surface of the oil separating piece (8) and the inner wall of the oil-gas separation cavity are arranged at a distance, a refrigerant enters the oil-gas separation cavity and then is subjected to oil-gas separation by the oil separating piece (8), formed gas is discharged out of the oil-gas separation cavity through the exhaust channel, and formed oil flows into the high-pressure oil collecting cavity.

2. The compressor as claimed in claim 1, wherein a high-pressure exhaust cavity is formed between the front end cover (7) and the fixed scroll (6), an air inlet passage (701) is arranged between the oil-gas separation cavity and the high-pressure exhaust cavity, the oil separator (8) is of a barrel-shaped structure, a filter hole is formed in the bottom of the oil separator (8), the open end of the oil separator (8) is communicated with the exhaust passage, and an included angle is formed between the axis of the air inlet passage (701) and the axis of the oil separator (8), so that a refrigerant enters the oil-gas separation cavity through the air inlet passage (701) and then acts on the outer wall of the oil separator (8) to form a rotational airflow.

3. The compressor of claim 2, wherein an oil storage chamber is formed between the bottom of the oil separating member (8) and the side wall of the oil-gas separation cavity, an oil through hole (702) communicated with the high-pressure oil collecting cavity is formed in the side wall or the bottom of the oil storage chamber, and the bottom of the oil storage chamber is located above the bottom of the high-pressure oil collecting cavity along the axial direction of the oil separating member (8).

4. A compressor according to claim 3, characterized in that the axis of the oil passage hole (702) is arranged perpendicular or parallel to the axis of the oil distributing member (8).

5. The compressor of claim 1, wherein the oil return passage (703) opens at a bottom or a side wall of the high pressure oil collection chamber.

6. The compressor of claim 3, wherein a filter screen (91) for an oil outlet is arranged at the communication position of the high-pressure oil collecting cavity and the oil return channel (703).

7. The compressor of claim 6, wherein an oil inlet filter screen (92) is provided at the oil passing hole (702).

8. The compressor of claim 7,

at least one of the oil outlet filter screen (91) and the oil inlet filter screen (92) is of an arc structure or a semi-cylindrical structure, and/or

At least one of the oil outlet filter screen (91) and the oil inlet filter screen (92) is made of metal.

9. The compressor of claim 7, wherein a body portion of at least one of said oil outlet filter screen (91) and said oil inlet filter screen (92) is made of metal, and a periphery of the body portion is provided with a plastic structure for wrapping edges of said body portion, or wherein a body portion of at least one of said oil outlet filter screen (91) and said oil inlet filter screen (92) is made of non-metal, and a periphery of the body portion is provided with a metal structure for wrapping edges of said body portion.

10. The compressor of claim 1, wherein a first groove (71) is formed in the front end cover (7) along an axial direction of the housing (4), a second groove (72) is formed in the front end cover (7) along a direction perpendicular to the axial direction of the housing (4), the second groove (72) forms the oil-gas separation chamber, an outer circumferential surface of a gas discharge end of the oil component (8) and a groove wall of the second groove (72) are arranged in an interference fit manner, an oil sump cover plate (10) is arranged in the front end cover (7), and the oil sump cover plate (10) is connected with a notch of the first groove (71), so that the high-pressure oil collection chamber is defined between the oil sump cover plate (10) and the first groove (71).

11. The compressor of claim 10, wherein the compressor comprises an oil outlet filter screen (91), the oil outlet filter screen (91) is arranged at the bottom of the high-pressure oil collecting cavity, and part of the filter screen (91) abuts against the oil sump cover plate (10).

12. The compressor of claim 3, comprising an oil inlet filter screen (92), wherein the oil passing hole (702) is formed in the bottom of the oil storage chamber, the oil inlet filter screen (92) is of a barrel-shaped structure, and the outer surface of the opening end of the oil inlet filter screen (92) is in interference fit with the inner wall of the outlet end of the oil passing hole (702).

13. Compressor according to claim 12, characterized in that the axis of the oil inlet filter (92) is arranged parallel to the axis of the oil distribution member (8).

14. The compressor of claim 11, wherein the oil outlet filter screen (91) is provided with a body protruding on a bottom surface of the high pressure oil collecting chamber.

15. An automobile comprising a compressor, characterized in that the compressor is a compressor according to any one of claims 1 to 14.

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