CN117989132A - End cover assembly, compressor and vehicle with end cover assembly - Google Patents

Abstract

The invention discloses an end cover assembly, a compressor and a vehicle with the same, wherein the end cover assembly comprises an end cover and an oil content insertion pipe, the end cover is provided with a first chamber, the first chamber is provided with an air inlet, the air inlet is suitable for being communicated with an air outlet of a compression mechanism of the compressor, the cavity wall of the first chamber is provided with a pressure relief hole communicated with the first chamber, and the pressure relief hole is used for installing a pressure relief valve; the oil content intubate is established in first cavity, and is formed with the exhaust passage that communicates with first cavity in the oil content intubate, and exhaust passage's both ends are formed into entry and export respectively, and the pressure release hole is located the one side of keeping away from the entry of export, and the direction that the axial orientation of inlet along exhaust passage kept away from the pressure release hole extends to surpass the air inlet. According to the end cover assembly provided by the invention, the content of oil in the mixed gas sprayed by the pressure relief valve can be reduced, the loss of oil in the compressor is reduced, the pollution of sprayed oil to surrounding parts is reduced, and the experience of a user is improved.

Description

End cover assembly, compressor and vehicle with end cover assembly

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to an end cover assembly, a compressor and a vehicle with the end cover assembly.

Background

In the related art, a pressure relief valve is generally provided in a compressor, so that when the discharge pressure is large due to a failure or the like of the compressor, the pressure relief valve is opened to release the pressure; however, the design of the relief valve is unreasonable, so that when the relief valve is opened, the ejected high-pressure gas contains a large amount of gaseous oil besides the refrigerant, and liquid oil can be stored in a lower position, if the relief valve is lower, a large amount of gaseous oil and liquid oil can be ejected when the relief valve is opened, pollution is caused to parts around the compressor, a large amount of oil mist can cause unnecessary concern to users, and meanwhile, the oil loss of the compressor can be increased.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the end cover assembly of the compressor can reduce the content of oil in gas sprayed by the pressure relief valve, reduce the loss of oil in the compressor, reduce pollution of sprayed oil to surrounding parts of the compressor, and improve the experience of users.

The invention also provides a compressor with the end cover assembly.

The invention also provides a vehicle with the compressor.

An end cover assembly of a compressor according to an embodiment of a first aspect of the present invention includes: the end cover is provided with a first chamber, the first chamber is provided with an air inlet, the air inlet is suitable for being communicated with an air outlet of a compression mechanism of the compressor, a pressure relief hole communicated with the first chamber is formed in a cavity wall of the first chamber, and the pressure relief hole is used for installing a pressure relief valve; the oil content intubate, the oil content intubate is established in the first cavity, just be formed with in the oil content intubate with the exhaust passage of first cavity intercommunication, exhaust passage's both ends are formed into entry and export respectively, the pressure release hole is located the export keep away from one side of entry, just the entry is followed exhaust passage's axial orientation is kept away from the direction of pressure release hole extends to surpass the air inlet.

According to the end cover assembly provided by the embodiment of the invention, the pressure relief hole is arranged on one side of the outlet of the oil content insertion pipe away from the inlet, so that the pressure relief hole is positioned on the downstream side of the exhaust channel, oil in the mixed gas is separated by the oil content insertion pipe, and the separated gas flows through the position where the pressure relief hole is positioned, so that the oil content of the mixed gas at the pressure relief hole is effectively reduced, the oil content in the mixed gas ejected by the pressure relief valve is reduced after the pressure relief valve is opened, the loss of oil in the compressor is reduced, the pollution of the ejected oil to surrounding components is reduced, and the experience of a user is improved.

In some embodiments, the air inlet is configured such that the air flow entering the first chamber flows helically around the outer peripheral wall of the oil cannula.

In some embodiments, the wall of the first chamber is formed with an oil drain port and a balance hole, the oil drain port is located on one side of the inlet away from the outlet, the balance hole is located on one side of the outlet away from the inlet, and the end cover is further formed with an oil return chamber, and the oil return chamber is respectively communicated with the oil drain port and the balance hole.

In some embodiments, the end cover assembly of the compressor further comprises: the filter piece is arranged in the first cavity and is positioned between the exhaust channel and the oil drain port.

In some embodiments, the filter has a filter portion that protrudes away from the exhaust passage.

In some embodiments, the end cap further forms a second chamber in communication with the air inlet, and a side of the second chamber facing away from the first chamber is open to accommodate communication with the air outlet.

In some embodiments, the end cover includes a first housing and a second housing, the first housing defines the first chamber, a cavity wall of the first chamber is formed with an oil drain, the first housing and the second housing are fixed, and the second housing defines a third chamber, a partition rib is arranged in the third chamber, the partition rib divides the third chamber into the second chamber and an oil return chamber, and the oil return chamber is communicated with the oil drain.

In some embodiments, a communication channel is formed on the partition rib, and the communication channel is used for communicating the oil drain port and the oil return chamber.

According to a second aspect of the present invention, a compressor includes: a compression mechanism formed with an exhaust port; an end cover assembly, wherein the end cover assembly is an end cover assembly of the compressor according to the embodiment of the first aspect of the invention, and the air inlet is communicated with the air outlet.

According to the compressor provided by the embodiment of the invention, the end cover assembly is adopted, so that the waste of oil can be reduced, and the pollution of the oil to surrounding parts of the compressor is reduced.

A vehicle according to an embodiment of a third aspect of the present invention includes a compressor according to an embodiment of the above second aspect of the present invention.

According to the vehicle provided by the embodiment of the invention, the experience of a user can be improved by adopting the compressor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of an end cap assembly according to one embodiment of the present invention;

FIG. 2 is another schematic view of the end cap assembly shown in FIG. 1;

FIG. 3 is yet another schematic view of the end cap assembly shown in FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of the end cap shown in FIG. 1;

FIG. 6 is another schematic view of the end cap shown in FIG. 5;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a partial schematic view of a compressor according to one embodiment of the invention;

Fig. 9 is a schematic diagram of a vehicle according to one embodiment of the invention.

Reference numerals:

vehicle 300, compressor 200, compression mechanism 101, exhaust port 101a,

End cap assembly 100,

An end cover 1, an oil drain port 1a,

A first housing 11, a first chamber 11a, a pressure release hole 11b,

A second housing 12, a third chamber 12a, a second chamber 12b, an oil return chamber 12c, an air inlet 12d, a balance hole 12e, a partition rib 121, a communication passage 121a,

An oil cannula 2, an exhaust passage 2a, an inlet 21, an outlet 22,

A pressure release valve 3,

Filter 4, filter unit 41.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

Hereinafter, with reference to the accompanying drawings, the end cover assembly 100 of the compressor 200 according to an embodiment of the present invention is described.

As shown in fig. 1, 3 and 4, the end cap assembly 100 includes an end cap 1 and an oil insertion tube 2, the end cap 1 is formed with a first chamber 11a, the first chamber 11a has an intake port 12d, the intake port 12d is adapted to communicate with an exhaust port 101a of a compression mechanism 101, a mixed gas (e.g., refrigerant and oil) flows into the first chamber 11a through the exhaust port 101a of the compression mechanism 101 of the compressor 200, a cavity wall of the first chamber 11a is formed with a relief hole 11b communicating with the first chamber 11a, the relief hole 11b is used for mounting a relief valve 3, and the relief valve 3 is configured to: when the discharge pressure of the compressor 200 exceeds the set pressure, the relief valve 3 is opened to discharge the high-pressure gas in the compressor 200, and when the discharge pressure of the compressor 200 does not exceed the set pressure, the relief valve 3 is closed, so that the working stability of the compressor 200 is ensured, the damage caused by the overhigh pressure in the compressor 200 is avoided, and after the discharge pressure of the compressor 200 is reduced to the set pressure, the relief valve 3 can be closed automatically.

For example, in the example of fig. 4, an internal thread is formed on the peripheral wall of the relief hole 11b, and the relief valve 3 is formed with an external thread screwed to the internal thread to achieve the installation of the relief valve 3. Of course, the manner of mounting the relief valve 3 is not limited thereto.

The oil content insertion pipe 2 is arranged in the first chamber 11a, the oil content insertion pipe 2 is used for separating refrigerant and oil in the mixed gas, an exhaust passage 2a communicated with the first chamber 11a is formed in the oil content insertion pipe 2, an inlet 21 and an outlet 22 are respectively formed at two ends of the exhaust passage 2a, the pressure release hole 11b is positioned at one side of the outlet 22 far away from the inlet 21, the pressure release hole 11b is positioned at the downstream side of the exhaust passage 2a, the air flow firstly flows through the exhaust passage 2a, and the whole exhaust passage 2a can be positioned in the first chamber 11a at the position where the air flow flows through the pressure release hole 11 b; the inlet 21 extends along the axial direction of the exhaust passage 2a towards the direction far away from the pressure release hole 11b to exceed the air inlet 12d, so that the air inlet 12d is positioned between the inlet 21 and the outlet 22 in the axial direction of the first chamber 11a, the oil insertion pipe 2 can change the flow form of the air flow in the first chamber 11a, the air flow of the mixed gas entering the first chamber 11a from the air inlet 12d collides with the oil insertion pipe 2 or does not collide with the oil insertion pipe 2, the mixed gas flowing into the first chamber 11a is separated by the oil insertion pipe 2, the separated oil flows to the bottom of the first chamber 11a (namely, flows to the side of the inlet 21 far away from the outlet 22) under the action of gravity, namely, the separated oil does not flow to the side of the pressure release hole 11b, the separated refrigerant (or the refrigerant with lower oil content than the mixed gas) enters the exhaust passage 2a from the outlet 22 and flows to the position of the pressure release hole 11b, the content of the mixed gas is effectively reduced, the content of the mixed gas at the air at the position of the pressure release hole 11b is effectively reduced, the content of the mixed gas at the air at the outlet 22 is effectively reduced, the air flow is discharged from the inlet 21, the air release valve 200 is opened, the content of the air is effectively reduced, and the content of the air is effectively polluted by the air in the compressor 200 is lowered, and the user is lowered, and the loss is caused by the air is lowered when the content is effectively cooled by the air, and the air is lowered, and the content is lowered, and the user side 200 is caused.

It will be appreciated that the oil insertion tube 2 is disposed in the first chamber 11a, and the compressed refrigerant flows out from the air outlet 101a of the compression mechanism 101 and flows into the first chamber 11a through the air inlet 12d, and at this time, the refrigerant carries a certain amount of oil.

When the air flow collides with the oil insertion tube 2 in the first chamber 11a, the oil and the refrigerant gas are separated due to different densities, the separated refrigerant gas flows into the exhaust passage 2a from the inlet 21 of the exhaust passage 2a and is discharged from the outlet 22 of the exhaust passage 2a, and the separated oil can flow and flow to the bottom of the first chamber 11a under the action of self gravity; when the air flow does not collide with the oil insertion tube 2 in the first chamber 11a, the air flow can flow spirally along the outer peripheral wall of the oil insertion tube 2 toward the inlet 21 of the exhaust passage 2a, the forced separation of the oil and the refrigerant gas is realized under the action of centrifugal force because the density of the oil is higher than that of the refrigerant gas, the separated refrigerant gas flows into the exhaust passage 2a from the inlet 21 of the exhaust passage 2a and is discharged from the outlet 22 of the exhaust passage 2a, and the separated oil can flow along the inner wall of the first chamber 11a and flow to the bottom of the first chamber 11 a.

The volume of the first chamber 11a is larger than that of the air inlet 12d, and the flowing speed of the air flow in the first chamber 11a is far smaller than the sound velocity, so that the sound waves generated when the air flow flows in the first chamber 11a are repeatedly reflected in the first chamber 11a in an overlapping way, and the sound waves are continuously attenuated, thereby being beneficial to reducing the noise of the air flow.

"Downstream" means downstream in the direction of flow of the air stream; the oil may be lubricating oil or the like.

When the end cap assembly 100 is used in the compressor 200, the pressure relief hole 11b may be located above the exhaust passage 2a (directly above or obliquely above, etc.), so that the pressure relief hole 11b is located higher, the pressure relief valve 3 is located at a higher position of the first chamber 11a, and no liquid oil is accumulated at the pressure relief valve 3, so that when the pressure relief valve 3 is opened, the injected oil amount (for example, the content of the liquid oil) is further reduced, further reducing the oil loss of the compressor 200, and reducing the pollution to surrounding components.

According to the end cover assembly 100 of the embodiment of the invention, the pressure relief hole 11b is arranged on one side of the outlet 22 of the oil content cannula 2 away from the inlet 21, so that the pressure relief hole 11b is positioned on the downstream side of the exhaust channel 2a, and after the oil content cannula 2 separates oil in the mixed gas, the separated gas flows through the position where the pressure relief hole 11b is positioned, so that the oil content of the mixed gas at the pressure relief hole 11b is effectively reduced, the oil content in the mixed gas sprayed by the pressure relief valve 3 is reduced after the pressure relief valve 3 is opened, the loss of oil in the compressor 200 is reduced, the pollution of the sprayed oil to surrounding components is reduced, and the experience of a user is improved.

In addition, the end cover assembly 100 of the application can solve the technical problem of higher oil content of gas at the injection position of the pressure release valve 3 by adopting the existing oil content insertion pipe 2, and other parts are not required to be additionally arranged, so that the structure of the end cover assembly 100 is simplified.

In some embodiments, as shown in fig. 3 and 4, the air inlet 12d is configured such that the air flow entering the first chamber 11a flows spirally around the outer circumferential wall of the oil insertion tube 2, so that the mixed gas air flow can flow spirally along the outer circumferential wall of the oil insertion tube 2 toward the inlet 21 of the air discharge channel 2a, so that forced separation of oil and refrigerant gas is realized under the action of centrifugal force, the separated gas flows into the air discharge channel 2a from the inlet 21 and is discharged from the outlet 22, and then flows through the position of the first chamber 11a corresponding to the pressure relief hole 11b, and the separated oil can flow along the inner wall of the first chamber 11a and flow to the bottom of the first chamber 11a, so that the content of oil in the mixed gas flowing out from the outlet 22 can be reduced, and even if the pressure relief valve 3 is opened, the loss of oil and pollution to surrounding components can be reduced.

For example, as shown in fig. 1,4 and 7, the wall of the first chamber 11a is formed in a substantially cylindrical shape, the oil cannula 2 is a round tube, and the oil cannula 2 is provided coaxially with the first chamber 11 a; of course, the central axis of the oil cannula 2 may be disposed at intervals parallel to the central axis of the first chamber 11a, and the oil cannula 2 does not need to be mounted in a centered manner, which is beneficial to reducing the assembly accuracy requirements of the oil cannula 2 and the end cap 1.

In some examples, the air inlet direction at the air inlet 12d and the tangential direction of the first chamber 11a at the air inlet 12d form an included angle alpha, 0 degrees less than or equal to alpha less than 90 degrees, and at this time, the air flow at the air inlet 12d does not positively blow towards the oil insertion tube 2 to collide with the oil insertion tube 2, but flows spirally around the outer peripheral wall of the oil insertion tube 2 towards the inlet 21, so that the air flow is separated from the refrigerant gas under the action of centrifugal force; meanwhile, the airflow spirally flows around the outer peripheral wall of the oil content insertion pipe 2 after passing through the air inlet 12d, so that the airflow does not collide with the oil content insertion pipe 2 to reduce the flow speed, the flow speed of the airflow in the first chamber 11a can be ensured, the size of centrifugal force is further ensured, and the oil-gas separation effect of the airflow in the first chamber 11a is improved.

In some examples, the cross section of the first chamber 11a is circular, the central axis of the air inlet 12d is tangential to the circle where the inner wall of the first chamber 11a is located, so that the flow direction of the air flow at the air inlet 12a is tangential to the circle where the inner wall of the first chamber 11a is located, the peripheral wall of the natural oil content cannula 2 in the air flow first chamber 11a can spirally flow, the flow speed and the centrifugal force of the air flow are guaranteed, and the oil-gas separation effect is improved.

Of course, when the cross section of the first chamber 11a is circular, the central axis of the air inlet 12d may be not tangential to the circle where the inner wall of the first chamber 11a is located, and separation of oil and refrigerant gas may be achieved, so as to ensure a good oil-gas separation effect.

Alternatively, the central axis of the air inlet 12d may be substantially perpendicular to the central axis of the air discharge passage 2a, so that the air flow can be separated from oil and gas by colliding with the oil content insertion tube 2, or can be spirally flowed around the oil content insertion tube 2; of course, the central axis of the air inlet 12d may also form an acute angle with the central axis of the air outlet channel 2a, at this time, the air flow at the air inlet 12d may obliquely flow into the first chamber 11a along a direction inclined relative to the axial direction of the air outlet channel 2a, and oil-gas separation may also be achieved, at this time, the air flow may collide with the oil-gas separation tube 2 to achieve oil-gas separation, and may also flow spirally around the oil-gas separation tube 2 to achieve oil-gas separation.

In some embodiments, as shown in fig. 4, the cavity wall of the first chamber 11a is formed with an oil drain port 1a, the oil drain port 1a is located at a side of the inlet 21 away from the outlet 22, then the pressure relief hole 11b and the oil drain port 1a are respectively located at two axial ends of the exhaust passage 2a at intervals, and in the axial direction of the exhaust passage 2a, the air inlet 12d and the oil drain port 1a are respectively located at two opposite sides of the inlet 21, so that oil flowing to the bottom of the first chamber 11a can be drained from the oil drain port 1 a; the wall of the first chamber 11a is also formed with a balance hole 12e, the balance hole 12e being located on the side of the outlet 22 remote from the inlet 21, and the balance hole 12e and the pressure release hole 11b being located on the same side in the axial direction of the exhaust passage 2 a.

The end cover 1 is further provided with an oil return chamber 12c, the oil return chamber 12c is respectively communicated with the oil drain port 1a and the balance hole 12e, so that oil discharged from the oil drain port 1a flows into the oil return chamber 12c, and thus collection and centralized treatment of the oil are conveniently realized, for example, the oil return chamber 12c is communicated with an oil pool of the compressor 200, and the oil in the oil return chamber 12c can flow into the oil pool, so that the oil can be recycled; meanwhile, the balance hole 12e is communicated with the first chamber 11a and the oil return chamber 12c to balance the air pressure between the first chamber 11a and the oil return chamber 12c, so that oil can smoothly flow into the oil return chamber 12c through the oil drain port 1a under the action of gravity, and the difficulty in oil return caused by the large pressure of the oil return chamber 12c can be avoided.

For example, in the examples of fig. 3 and 4, the end cap 1 is formed with a first chamber 11a, the first chamber 11a is disposed up and down, then the central axis of the first chamber 11a extends vertically, the chamber wall of the first chamber 11a is formed with an air inlet 12d, an oil drain port 1a, a balance hole 12e and a pressure relief hole 11b, the oil cannula 2 is inserted in the first chamber 11a in an interference manner, and an oil discharge passage 2a communicating with the first chamber 11a is formed in the oil cannula 2, the two axial ends of the air discharge passage 2a are respectively formed into an inlet 21 and an outlet 22, the inlet 21 is located at the lower side of the outlet 22, and the opening diameter of the inlet 21 is smaller than the opening diameter of the outlet 22, in the up-down direction, the air inlet 12d is located between the inlet 21 and the outlet 22, the oil drain port 1a is located at the lower side of the inlet 21, and the oil drain port 1a communicates with the oil return chamber 12c, the balance hole 12e and the pressure relief hole 11b are located at the upper side of the outlet 22, and the balance hole 12e and the pressure relief hole 11b are disposed opposite to each other, the balance hole 12e communicates with the first chamber 11a and the oil return chamber 12c, and the pressure relief valve 3 is mounted at the hole 11 b. Of course, the central axis of the first chamber 11a may also extend up and down in a direction inclined from the vertical direction.

The mixed gas flows into the first chamber 11a from the gas inlet 12d and flows spirally along the outer peripheral wall of the oil insertion tube 2 toward the inlet 21, so that the refrigerant and the oil in the mixed gas flow along the inner wall of the first chamber 11a, collect at the bottom of the first chamber 11a and flow into the oil return chamber 12c from the oil discharge port 1a, and the remaining mixed gas enters the gas discharge passage 2a from the inlet 21 and flows out from the outlet 22, and passes through the balance hole 12e and the pressure release valve 3.

In some embodiments, as shown in fig. 4, the end cap assembly 100 further includes a filter 4, the filter 4 is disposed in the first chamber 11a, and the filter 4 is located between the exhaust passage 2a and the oil drain port 1a, so that the filter 4 can filter oil flowing toward the bottom of the first chamber 11a, thereby removing impurities and the like in the oil to ensure the oil re-usability.

Alternatively, the filter element 4 is interference fitted to the peripheral wall of the first chamber 11 a; but is not limited thereto.

In some embodiments, as shown in fig. 4, the filter element 4 has a filter portion 41, where the filter portion 41 protrudes in a direction away from the exhaust channel 2a, so that the filter portion 41 is approximately formed into a funnel shape, so that impurities filtered by the filter portion 41 are deposited at the bottom of the filter portion 41, and the problem that the end cover assembly 100 works for a long time and then the impurities cover the filter portion 41 to cause oil to block the first chamber 11a is avoided, so that the oil can smoothly pass through the filter portion 41 to filter the impurities and then flow to the oil return chamber 12c, thereby ensuring normal operation of the filter portion 4, and further improving the service life of the filter portion 4.

In some embodiments, as shown in fig. 1, 3 and 4, the end cover 1 is further formed with a second chamber 12b, the second chamber 12b is communicated with the air inlet 12d, and a side of the second chamber 12b facing away from the first chamber 11a is opened to be suitable for being communicated with the air outlet 101a, after the compression mechanism 101 completes compression, the refrigerant carries a certain amount of oil and is discharged from the air outlet 101a to the second chamber 12b, and then the refrigerant flows into the first chamber 11a through the air inlet 12d, the second chamber 12b can be formed as a high-pressure cavity, and the first chamber 11a can be formed as an air discharge cavity; it can be seen that the second chamber 12b is located on the upstream side of the first chamber 11a in the flow direction of the air flow, so that the refrigerant discharged from the compression mechanism 101 flows through the second chamber 12b before flowing through the first chamber 11a.

Wherein, since the volume of the second chamber 12b is larger relative to the exhaust port 101a, the flow velocity of the mixed gas in the second chamber 12b is lower, and the pulsation of the mixed gas flow is reduced, thereby realizing the rectification of the mixed gas flow and reducing the noise of the gas flow.

Optionally, the volume of the first chamber 11a is smaller than that of the second chamber 12b, so as to facilitate the rectification and noise reduction effects of the second chamber 12b on the gas, and the gas flows into the first chamber 11a from the gas inlet 12d, so that the gas flows in the first chamber 11a at a higher flow rate, and the oil-gas separation effect is improved; the volume of the first chamber 11a is larger than that of the air inlet 12d, and the flowing speed of the air flow in the first chamber 11a is far smaller than the sound velocity, so that the sound wave generated when the air flow flows in the first chamber 11a is repeatedly reflected in the first chamber 11a in an overlapping way, and is continuously attenuated, and the air flow noise is further reduced.

In some embodiments, as shown in fig. 1-4, the end cover 1 includes a first housing 11 and a second housing 12, the first housing 11 defines a first cavity 11a, an oil drain port 1a is formed on a cavity wall of the first cavity 11a, the first housing 11 and the second housing 12 are fixed, the second housing 12 defines a third cavity 12a, a separation rib 121 is disposed in the third cavity 12a, the separation rib 121 divides the third cavity 12a into a second cavity 12b and an oil return cavity 12c, the oil return cavity 12c is communicated with the oil drain port 1a, the separation rib 121 has a certain structural strength, so that the structural stability of the second housing 12 can be improved, meanwhile, the space of the second housing 12 is fully utilized, the structure of the second housing 12 is simplified, the processing difficulty of the second cavity 12b and the oil return cavity 12c is reduced, and therefore, the end cover 1 is simple in structure, and the processing of the end cover 1 is facilitated.

It will be appreciated that the first housing 11 and the second housing 12 may be a single piece or separate pieces.

In some embodiments, as shown in fig. 3, the plurality of air inlets 12d are plural, the plurality of air inlets 12d are arranged at intervals, the plurality of air inlets 12d may be arranged at intervals along the axial direction of the exhaust passage 2a, or the plurality of air inlets 12d may be arranged at intervals along the circumferential direction of the exhaust passage 2a, so that the air intake amount of the first chamber 11a is advantageously increased, and the air discharge amount of the compressor 200 may be increased to some extent.

For example, in the example of fig. 3, the second housing 12 is formed with two intake ports 12d, and the two intake ports 12d are arranged at intervals in the axial direction of the exhaust passage 2 a. Of course, the air inlet 12d may be one.

In some embodiments, as shown in fig. 3 and 4, the partition rib 121 is formed with a communication channel 121a, and the communication channel 121a is used for communicating the oil drain port 1a and the oil return chamber 12c, so that the oil collected at the bottom of the first chamber 11a flows into the oil return chamber 12c through the communication channel 121a, and the space of the partition rib 121 is fully utilized, thereby simplifying the structure of the second housing 12.

Alternatively, the communication passage 121a may be in direct communication with the oil return chamber 12c, in which case the communication passage 121a penetrates the wall surface of the oil return chamber 12 c. Of course, the communication channel 121a may also be indirectly communicated with the oil return chamber 12c, and then the communication channel 121a flows to the oil return chamber 12c through a transition channel, which may be formed on the end cover 1, or may be formed on a member other than the end cover 1 (for example, the compression mechanism 101, and/or a gasket between the compression mechanism 100 and the end cover 1) that may be fixed to the end cover 1 to achieve communication between the communication channel 121a and the oil return chamber 12 c.

The compressor 200 according to the embodiment of the second aspect of the present invention, as shown in fig. 8, includes a compression mechanism 101 and an end cover assembly 100, the compression mechanism 101 being formed with a discharge port 101a, the end cover assembly 100 being the end cover assembly 100 of the compressor 200 according to the above-described embodiment of the first aspect of the present invention, the gas inlet 12d being in communication with the discharge port 101a such that the refrigerant compressed by the compression mechanism 101 flows to the first chamber 11a through the discharge port 101a and the gas inlet 12 d.

According to the compressor 200 of the embodiment of the invention, by adopting the end cover assembly 100, the waste of oil can be reduced, and the pollution of the oil to the surrounding components of the compressor 200 can be reduced.

In the present application, the type of the compressor 200 is not particularly limited.

For example, the compressor 200 may be a horizontal compressor (as shown in fig. 8), where the end cover assembly 100 may be disposed at an axial end of the compression mechanism 100, and the end cover assembly 100 is located on an exhaust side of the compression mechanism 100, the end cover 1 is fixedly connected to the compression mechanism 100, and the end cover assembly 100 may participate in defining a casing of the compressor 100, and of course, the end cover assembly 100 may also be disposed in the casing of the compressor 100; the compressor 200 may also be a vertical compressor.

For another example, the compressor 200 may be a scroll compressor, in which case the compressor 200 includes a fixed scroll and a movable scroll to achieve refrigerant compression; the compressor 200 may also be a rotary compressor or the like.

A vehicle 300 according to an embodiment of the third aspect of the present invention, as shown in fig. 9, includes a compressor 200 according to the above-described embodiment of the second aspect of the present invention.

According to the vehicle of the embodiment of the invention, the experience of the user can be improved by adopting the compressor 200.

For example, the vehicle 300 includes an air conditioning system that implements refrigerant circulation using the compressor 200 according to the above-described embodiment of the present invention.

In some embodiments, vehicle 300 may be a new energy vehicle. The new energy vehicle may be a pure electric vehicle using the motor as a main driving force, or the new energy vehicle may be a hybrid vehicle using the internal combustion engine and the motor as main driving forces at the same time.

Further, regarding the internal combustion engine and the motor that supply driving power to the new energy vehicle mentioned in the above embodiments, the internal combustion engine may use gasoline, diesel oil, hydrogen gas, or the like as fuel, and the manner of supplying electric power to the motor may use a power battery, a hydrogen fuel cell, or the like, without being particularly limited thereto. It should be noted that the present invention is merely illustrative of the structure of the new energy vehicle and the like, and is not intended to limit the scope of the present invention.

Further, in some embodiments, the compressor 200 applicable to the above-described new energy vehicle according to the embodiment of the present invention may be an electric compressor including the compression mechanism 101 and a driving mechanism, and the driving mechanism in the electric compressor may drive the compression mechanism 101 to perform compression work, for example, the driving mechanism may be a driving motor including a rotor and a stator.

In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," "axial," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An end cover assembly for a compressor, said end cover assembly comprising:

The end cover is provided with a first chamber, the first chamber is provided with an air inlet, the air inlet is suitable for being communicated with an air outlet of a compression mechanism of the compressor, a pressure relief hole communicated with the first chamber is formed in a cavity wall of the first chamber, and the pressure relief hole is used for installing a pressure relief valve;

The oil content intubate, the oil content intubate is established in the first cavity, just be formed with in the oil content intubate with the exhaust passage of first cavity intercommunication, exhaust passage's both ends are formed into entry and export respectively, the pressure release hole is located the export keep away from one side of entry, just the entry is followed exhaust passage's axial orientation is kept away from the direction of pressure release hole extends to surpass the air inlet.

2. The compressor end cover assembly of claim 1, wherein the air inlet is configured such that an air flow entering the first chamber flows helically around an outer peripheral wall of the oil cannula.

3. The end cover assembly of claim 1, wherein a wall of said first chamber is formed with an oil drain port on a side of said inlet remote from said outlet and a balance hole on a side of said outlet remote from said inlet,

The end cover is also provided with an oil return cavity, and the oil return cavity is respectively communicated with the oil drain port and the balance hole.

4. The compressor end cover assembly of claim 3, further comprising:

The filter piece is arranged in the first cavity and is positioned between the exhaust channel and the oil drain port.

5. The compressor end cover assembly of claim 4, wherein said filter element has a filter portion projecting away from said discharge passage.

6. The compressor end cover assembly of any one of claims 1-5, further forming a second chamber, said second chamber communicating with said air inlet, and a side of said second chamber facing away from said first chamber being open to accommodate communication with said air outlet.

7. The end cover assembly of claim 6, wherein said end cover comprises a first housing and a second housing, said first housing defining said first chamber, a wall of said first chamber defining an oil drain, said first housing and said second housing being stationary, and said second housing defining a third chamber, a dividing rib disposed within said third chamber, said dividing rib dividing said third chamber into said second chamber and an oil return chamber, said oil return chamber communicating with said oil drain.

8. The end cover assembly of claim 7, wherein said partition rib has a communication passage formed thereon for communicating said oil drain port with said oil return chamber.

9. A compressor, comprising:

a compression mechanism formed with an exhaust port;

an end cover assembly, the end cover assembly being the end cover assembly of the compressor of any one of claims 1-8, the air inlet communicating with the air outlet.

10. A vehicle comprising a compressor according to claim 9.