CN219840798U - Lower end cover assembly, compressor, air conditioner and vehicle with lower end cover assembly - Google Patents

Abstract

The utility model discloses a lower end cover assembly, a compressor, an air conditioner and a vehicle with the lower end cover assembly, wherein the lower end cover assembly is used for the compressor, the compressor comprises a main shaft, and the lower end cover assembly comprises: the lower end cover is provided with a bearing chamber at one side, a heating cavity for accommodating heating medium is arranged on the lower end cover, one end of the main shaft is positioned in the bearing chamber, and a bearing is arranged between the main shaft and the inner wall of the bearing chamber; and the heating component is used for heating the heating medium in the heating cavity. According to the lower end cover assembly, the heating cavity containing the heating medium is arranged, so that the refrigerant can be heated, and liquid in the refrigerant is heated and gasified, thereby avoiding the mixing of the refrigerant and lubricating oil in a liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the full lubrication between the main shaft and the bearing, reducing the abnormal abrasion of the compressor and prolonging the service life of the compressor.

Description

Lower end cover assembly, compressor, air conditioner and vehicle with lower end cover assembly

Technical Field

The utility model relates to the field of vehicles, in particular to a lower end cover assembly, a compressor, an air conditioner and a vehicle with the lower end cover assembly.

Background

In the related art, liquid suction of a compressor is one of serious symptoms of the compressor in the operation process, a refrigerant flows back to the compressor in a liquid form and is mixed with lubricating oil, when the lubricating oil is diluted to a certain degree, a bearing cannot be sufficiently lubricated to cause abrasion aggravation, and further the phenomena of current rising, noise and vibration increase of the compressor can occur, so that the compressor is finally damaged.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the lower end cover assembly, which can reduce abnormal abrasion of the compressor and prolong the service life of the compressor.

The utility model also provides a compressor which comprises the lower end cover assembly.

The utility model also provides an air conditioner which comprises the compressor.

The utility model further provides a vehicle, and the vehicle comprises the air conditioner.

A lower end cap assembly according to an embodiment of the present utility model is for a compressor including a main shaft, the lower end cap assembly including: the heating device comprises a lower end cover, a main shaft and a heating device, wherein a bearing chamber is arranged on one side of the lower end cover, a heating cavity for accommodating heating medium is arranged on the lower end cover, one end of the main shaft is positioned in the bearing chamber, and a bearing is arranged between the main shaft and the inner wall of the bearing chamber; and the heating component is used for heating the heating medium in the heating cavity.

According to the lower end cover assembly provided by the embodiment of the utility model, the heating cavity containing the heating medium is arranged, so that the refrigerant can be heated, and the liquid in the refrigerant is gasified by heating, thereby avoiding the mixing of the refrigerant in a liquid form with lubricating oil to a certain extent, ensuring the concentration of the lubricating oil, ensuring the full lubrication between the main shaft and the bearing, reducing the abnormal abrasion of the compressor and prolonging the service life of the compressor.

In addition, the lower end cover assembly according to the utility model can also have the following additional technical features:

in some embodiments, the heating assembly has a receiving cavity for receiving a heating medium, the heating cavity having an access opening, the receiving cavity being in communication with the access opening.

In some embodiments, the heating cavity is annular and extends along the circumferential direction of the bearing chamber, the inlet and the outlet are arranged on one side of the heating cavity, which is away from the accommodating space, and the inlet and the outlet comprise an inlet and an outlet, and the inlet and the outlet are communicated with the heating cavity.

In some embodiments, the lower end cover is provided with a suction hole, a line connecting the center of the inlet and the center of the outlet passes through the central axis of the heating cavity, and the line connecting the center of the inlet and the center of the outlet is parallel to the central axis of the suction hole.

In some embodiments, the inlet is disposed away from the suction hole with respect to the outlet in an arrangement direction of the inlet and the outlet.

In some embodiments, the heating cavity is an open loop extending along the circumferential direction of the bearing chamber, the inlet and the outlet comprise an inlet and an outlet, the inlet and the outlet are both communicated with the heating cavity, and the inlet and the outlet are respectively arranged at two ends of the circumferential direction of the heating cavity.

In some embodiments, the lower end cover is provided with a suction hole, and the symmetry axis of the heating cavity is perpendicular to the axis of the suction hole.

In some embodiments, the lower end cap comprises: the bearing chamber and the air suction hole are both arranged on the lower end cover body, and a groove is formed in one side of the lower end cover body, which is away from the bearing chamber; the sealing cover plate is arranged on one side, deviating from the bearing chamber, of the lower end cover body, the sealing cover plate seals the opening of the groove, and the heating cavity is jointly defined by the sealing cover plate and the lower end cover body.

In some embodiments, the lower end cover is provided with an air suction hole, the heating cavity is communicated with the inlet and the outlet through a heat exchange tube, the inner diameter of the heat exchange tube is D, the aperture of the air suction hole is D, and the requirements are that: d=α×d, where α satisfies: alpha is more than or equal to 0.4 and less than or equal to 1.2.

In some embodiments, the heating assembly further has a heating element, at least a portion of which is disposed within the receiving cavity.

The utility model also provides a compressor with the embodiment.

According to the compressor provided by the embodiment of the utility model, the lower end cover assembly is arranged, and the heating cavity containing the heating medium is arranged, so that the refrigerant can be heated, and the liquid in the refrigerant is heated and gasified, thereby avoiding the mixing of the refrigerant with lubricating oil in a liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft and the bearing, reducing the abnormal abrasion of the compressor and prolonging the service life of the compressor.

The utility model also provides an air conditioner with the embodiment.

According to the air conditioner provided by the embodiment of the utility model, the compressor is arranged, and the heating cavity containing the heating medium is arranged, so that the refrigerant can be heated, and the liquid in the refrigerant is heated and gasified, thereby avoiding the mixing of the refrigerant with lubricating oil in a liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft and the bearing, reducing the abnormal abrasion of the compressor and prolonging the service life of the compressor.

The utility model further provides a vehicle with the embodiment.

According to the vehicle provided by the embodiment of the utility model, the air conditioner is arranged, and the heating cavity containing the heating medium is arranged, so that the refrigerant can be heated, and the liquid in the refrigerant is heated and gasified, thereby avoiding the mixing of the refrigerant in a liquid form with lubricating oil to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft and the bearing, reducing the abnormal abrasion of the compressor and prolonging the service life of the compressor.

In addition, the vehicle according to the embodiment of the utility model may further have the following additional technical features:

in some embodiments, the vehicle comprises a drive motor and a battery, and the heating assembly is either a drive motor or a battery, or the heating assembly is a heat exchange member that exchanges heat with the drive motor or the battery.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model 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 perspective view of a compressor according to an embodiment of the present utility model;

FIG. 2 is a side view of a compressor according to an embodiment of the present utility model;

fig. 3 is a front view of a compressor according to an embodiment of the present utility model;

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

fig. 5 is a sectional view of a compressor according to an embodiment of the present utility model, in which double-arrow lines are flow paths of a refrigerant and single-arrow lines are flow paths of a heating medium;

FIG. 6 is a front view of a lower end cover body of a compressor according to an embodiment of the present utility model, wherein a bearing chamber is shown;

FIG. 7 is a cross-sectional view of the lower end cap body of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 8 is a perspective view of the bottom plate of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 9 is a perspective view of a heat exchange tube of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 10 is a perspective view of a seal cover plate of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 11 is a front view of a seal cover plate of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 12 is a cross-sectional view of a portion of the lower end cap assembly mated with a heat exchange tube in accordance with an embodiment of the present utility model;

FIG. 13 is an exploded cross-sectional view of a portion of the lower end cap assembly mated with a heat exchange tube in accordance with an embodiment of the present utility model;

FIG. 14 is a front view of a first embodiment of a portion of the lower end cap assembly mated with a heat exchange tube in accordance with an embodiment of the present utility model;

FIG. 15 is a rear view of the lower end cap body of the lower end cap assembly according to an embodiment of the present utility model;

FIG. 16 is a front view of a first embodiment of a lower end cap body of the lower end cap assembly wherein the heating cavity is annular in shape, in accordance with an embodiment of the present utility model;

FIG. 17 is a front view of a second embodiment of a portion of a lower end cap assembly mated with a heat exchange tube, wherein the heating chamber is annular in shape, in accordance with an embodiment of the present utility model;

FIG. 18 is a front view of a second embodiment of a lower end cap body of the lower end cap assembly wherein the heating cavity is open annular in shape, in accordance with an embodiment of the present utility model;

fig. 19 is a front view of a third embodiment of a portion of a lower end cap assembly mated with a heat exchange tube, wherein the heating chamber is open annular, in accordance with an embodiment of the present utility model.

Reference numerals:

100. a compressor; 101. A lower end cap assembly;

1. a housing; 11. An accommodation space;

2. a lower end cap; 21. a lower end cap body; 211. an air suction hole; 212. a connection terminal; 213. a bearing chamber; 214. a groove; 22. sealing the cover plate; 221. a heating chamber; 222. an inlet; 223. an outlet; 224. a first flow hole; 23. a bottom plate; 231. a second flow hole;

3. a main shaft; 31. a bearing; 32. a second bearing;

4. a heating assembly; 41. a receiving chamber; 42. a heating member; 43. a heat exchange tube;

5. an upper end cap; 51. an exhaust hole;

6. a motor assembly;

7. a fixed scroll;

8. and a movable scroll.

Detailed Description

Embodiments of the present utility model 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 utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following describes the lower end cap assembly 101 according to an embodiment of the present utility model with reference to the drawings.

As shown in fig. 5, the lower end cap assembly 101 according to the embodiment of the present utility model is used for a compressor 100, for example, referring to fig. 5, the compressor 100 may be a scroll compressor, the compressor 100 includes a main shaft 3, and the lower end cap assembly 101 includes a lower end cap 2 and a heating assembly 4.

Specifically, referring to fig. 1 and 2, the compressor 100 further includes a casing 1, where the casing 1 can protect the internal structure of the compressor 100, so as to avoid damage caused by exposure of the internal structure of the compressor 100, which is beneficial to prolonging the service life of the compressor 100.

Further, referring to fig. 4 and 5, the lower end cover 2 is connected with the housing 1 and defines the accommodating space 11, one side of the lower end cover 2 is provided with the bearing chamber 213, the lower end cover 2 is provided with the heating chamber 221 for accommodating the heating medium, the heating component 4 is used for heating the heating medium in the heating chamber 221, and the heating component can heat the refrigerant after the refrigerant enters the accommodating space 11, so that the liquid of the refrigerant is heated and gasified, thereby avoiding the mixing of the refrigerant with the lubricating oil in the liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft 3 and the bearing 31, reducing the abnormal abrasion of the compressor 100 and prolonging the service life of the compressor 100.

It will be understood that, referring to fig. 5, after the refrigerant flows into the accommodating space 11 in the compressor 100, it flows to the orbiting scroll 8 and the fixed scroll 7 through the gap of the motor assembly 6 and the gap between the outer peripheral wall of the motor assembly 6 and the inner peripheral wall of the housing 1, is discharged into the upper cover 5 after being compressed, and is discharged out of the compressor 100 through the exhaust hole 51.

Further, referring to fig. 4, the spindle 3 is disposed in the accommodating space 11, one end of the spindle 3 is disposed in the bearing chamber 213, a bearing 31 is disposed between the spindle 3 and the inner wall of the bearing chamber 213, the other end of the spindle 3 is engaged with a second bearing 32 on the housing 1, and the bearing 31 and the second bearing 32 can limit the spindle 3 from both ends in the longitudinal direction (a direction shown in fig. 4) of the spindle 3. At this time, the bearing 31 forms a friction pair with the main shaft 3, and a large amount of lubricating oil is required to lubricate the friction pair, so that a uniform and stable oil film is formed between the main shaft 3 and the bearing 31.

In addition, referring to fig. 4 and 5, the lower end cap 2 further has a connection terminal 212, and since the liquid refrigerant has better conductivity than the gaseous refrigerant, the liquid refrigerant can affect the insulation of the connection terminal 212, and the heating and gasification of the liquid refrigerant can also ensure the insulation of the connection terminal 212, thereby improving the safety of the compressor 100.

According to the compressor 100 of the embodiment of the utility model, the heating cavity 221 containing the heating medium is provided, so that the refrigerant can be heated, and the liquid in the refrigerant is heated and gasified, thereby avoiding the mixture of the refrigerant and the lubricating oil in a liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft 3 and the bearing 31, reducing the abnormal abrasion of the compressor 100 and prolonging the service life of the compressor 100.

In some embodiments of the present utility model, referring to fig. 5, the heating assembly 4 has a receiving chamber 41 for receiving a heating medium, and the heating chamber 221 has an inlet and an outlet, and the receiving chamber 41 communicates with the inlet and the outlet to supply sufficient heating medium to the heating chamber 221 and heat the heating medium. It will be appreciated that, referring to fig. 5 and 9, the flow direction of the heating medium in the compressor 100 is such that the heating medium enters the heating chamber 221 from the receiving chamber 41 through the inlet and the outlet, and returns to the receiving chamber 41 through the inlet and the outlet after heating the refrigerant.

In some embodiments of the present utility model, referring to fig. 6 and 16, the heating chamber 221 has a ring shape extending in the circumferential direction of the bearing chamber 213, so that the path length through which the heating medium flows can be increased as much as possible, and the heat exchange effect of the heating medium can be improved. Further, referring to fig. 5, the inlet and outlet include an inlet 222 and an outlet 223, and both the inlet 222 and the outlet 223 are communicated with the heating chamber 221, so that the heating medium in the accommodating chamber 41 enters the heating chamber 221 through the inlet 222 and the outlet 223.

In a further embodiment of the present utility model, referring to fig. 14, the lower end cap 2 has the suction hole 211, the line between the center of the inlet 222 and the center of the outlet 223 passes through the central axis of the heating chamber 221, and the line between the center of the inlet 222 and the center of the outlet 223 is parallel to the central axis of the suction hole 211, so that the flow of the heating medium in each place in the heating chamber 221 can be ensured, the uniform distribution of the heating medium in the heating chamber 221 can be ensured, and the heat exchange effect of the heating medium can be improved.

In a further embodiment of the present utility model, referring to fig. 5 and 14, the inlet 222 is disposed away from the suction hole 211 with respect to the outlet 223 in the arrangement direction of the inlet 222 and the outlet 223 (referring to the up-down direction of fig. 5), so that the flow direction of the heating medium is substantially opposite to the flow direction of the refrigerant, thereby further improving the heat exchange efficiency of the heating medium.

In other embodiments of the present utility model, referring to fig. 17, an acute angle is formed between a line between the center of the inlet 222 and the center of the outlet 223 and the central axis of the suction hole 211, so that one of the inlet 222 and the outlet 223 is close to the connection terminal 212, and the refrigerant at the suction hole 211 is ensured to be subjected to sufficient heat exchange, thereby ensuring that the liquid in the refrigerant at the suction hole 211 is gasified by heating, and improving the heat exchange effect of the heating medium.

In some embodiments of the present utility model, referring to fig. 18 and 19, the heating chamber 221 is in an open loop shape extending along the circumferential direction of the bearing chamber 213, the inlet and outlet ports include an inlet port 222 and an outlet port 223, the inlet port 222 and the outlet port 223 are both communicated with the heating chamber 221, the inlet port 222 and the outlet port 223 are respectively disposed at two ends of the heating chamber 221 in the circumferential direction, the flow direction of the heating medium in the heating chamber 221 is defined, the flow direction of the heating medium in the heating chamber 221 is ensured not to be disturbed, the space in the heating chamber 221 can be fully utilized, the space waste is avoided, and the heat exchange efficiency of the heating medium is relatively improved.

In a further embodiment of the present utility model, referring to fig. 18 and 19, the lower end cover 2 is provided with the suction hole 211, and the symmetry axis of the heating cavity 221 is perpendicular to the axis of the suction hole 211, so that the refrigerant at the suction hole 211 can be ensured to be subjected to sufficient heat exchange, thereby ensuring that the liquid in the refrigerant at the suction hole 211 is heated and gasified, and improving the heat exchange effect of the heating medium.

In some embodiments of the present utility model, referring to fig. 12, 13 and 15, and referring to fig. 4, the lower end cover 2 includes a lower end cover body 21 and a sealing cover plate 22, both a bearing chamber 213 and an air suction hole 211 are disposed on the lower end cover body 21, a groove 214 is disposed on a side of the lower end cover body 21 facing away from the bearing chamber 213, the sealing cover plate 22 seals an opening of the groove 214, the sealing cover plate 22 and the lower end cover body 21 together define a heating cavity 221, the sealing cover plate 22 is disposed to ensure that a heating medium in the heating cavity 221 does not leak, only heat exchange between the heating medium and a refrigerant is ensured, and no mass exchange is caused.

Further, referring to fig. 4 and 7, the groove 214 is formed on the side of the lower end cover body 21 facing away from the bearing chamber 213, so that heat exchange efficiency can be improved, influence of the liquid refrigerant on friction pairs formed by the bearing 31 and the main shaft 3 can be reduced, and space of the lower end cover 2 can be fully utilized, so that space utilization rate of the interior of the compressor 100 can be improved.

In some embodiments of the present utility model, referring to fig. 4, the lower end cover 2 has an air suction hole 211, the heating chamber 221 communicates with the inlet and outlet through a heat exchange tube 43, the heat exchange tube 43 has an inner diameter D, the air suction hole 211 has an aperture D, and the following conditions are satisfied: d=α×d, where α satisfies: alpha is more than or equal to 0.4 and less than or equal to 1.2. When alpha is more than 1.2, the inner diameter of the heat exchange tube 43 is too large, so that the flow rate of the heating medium in the heat exchange tube 43 is too small, and the comfort of passengers is affected; when α is less than 0.4, the inner diameter of the heat exchange tube 43 is too small, which results in too high flow rate of the heating medium in the heat exchange tube 43, which is liable to cause noise and vibration of the compressor 100 to become large, and reduce the service life of the compressor 100; when alpha is more than or equal to 0.4 and less than or equal to 1.2, the ratio of the inner diameter of the heat exchange tube 43 to the aperture of the air suction hole 211 is proper, the flow velocity in the heat exchange tube 43 is proper, and the comfort of passengers can be ensured while avoiding causing extra noise and vibration. For example, the ratio of the inner diameter D of the heat exchange tube 43 to the aperture D of the suction hole 211 may be 0.4, 0.6, 0.8, 1 or 1.2.

In a further embodiment of the utility model, when the heating medium is gaseous, α satisfies: alpha is more than or equal to 0.6 and less than or equal to 1.2, when alpha is more than 1.2, the inner diameter of the heat exchange tube 43 is too large, so that the flow velocity of a heating medium in the heat exchange tube 43 is too small, and the comfort of passengers is influenced; when α is less than 0.6, the inner diameter of the heat exchange tube 43 is too small, which results in too high flow rate of the heating medium in the heat exchange tube 43, which is liable to cause noise and vibration of the compressor 100 to become large, and reduce the service life of the compressor 100; when alpha is more than or equal to 0.6 and less than or equal to 1.2, the ratio of the inner diameter D of the heat exchange tube 43 to the aperture D of the air suction hole 211 is proper, the flow velocity in the heat exchange tube 43 is proper, and the comfort of passengers can be ensured while avoiding causing extra noise and vibration. For example, the ratio of the inner diameter D of the heat exchange tube 43 to the aperture D of the suction hole 211 may be 0.6, 0.8, 1 or 1.2.

Further, when the heating medium is in a liquid state, α satisfies: alpha is more than or equal to 0.4 and less than or equal to 1, when alpha is more than 1, the inner diameter of the heat exchange tube 43 is too large, so that the flow velocity of a heating medium in the heat exchange tube 43 is too small, and the comfort of passengers is affected; when α is less than 0.4, the inner diameter of the heat exchange tube 43 is too small, which results in too high flow rate of the heating medium in the heat exchange tube 43, which is liable to cause noise and vibration of the compressor 100 to become large, and reduce the service life of the compressor 100; when alpha is more than or equal to 0.4 and less than or equal to 1, the ratio of the inner diameter of the heat exchange tube 43 to the aperture of the air suction hole 211 is proper, the flow velocity in the heat exchange tube 43 is proper, and the comfort of passengers can be ensured while avoiding causing extra noise and vibration. For example, the ratio of the inner diameter D of the heat exchange tube 43 to the aperture D of the suction hole 211 may be 0.4, 0.6, 0.8 or 1.

It will be appreciated that, under the same conditions, the volume of the gaseous heating medium is larger than that of the liquid heating medium, so that the ratio of the inner diameter D of the heat exchange tube 43 to the aperture D of the suction hole 211 needs to be increased accordingly. Preferably, the freezing point of the heating medium in the liquid state is not too high, for example, pure water may freeze at 0 ℃ and cannot be used in the compressor 100, and the freezing point may be lowered by adding a salt compound.

In a further embodiment of the present utility model, referring to fig. 4 and 8, and referring to fig. 3, the lower end cap 2 further includes a bottom plate 23, the bottom plate 23 is connected to the lower end cap body 21, the sealing cover plate 22 is disposed between the bottom plate 23 and the lower end cap body 21, and the heat exchange tube 43 is disposed through the bottom plate 23.

Further, referring to fig. 8, 10 and 11, the sealing cover 22 is provided with a first through hole 224 through which the heat exchange tube 43 passes, the bottom plate 23 is provided with a second through hole 231 through which the heat exchange tube 43 passes, and the first through hole 224 and the second through hole 231 are both matched with the heat exchange tube 43, alternatively, the first through hole 224 and the second through hole 231 can be in threaded connection, welded connection or interference fit with the heat exchange tube 43, and different assembly modes can be selected according to requirements in terms of process, cost and the like.

In some embodiments of the present utility model, referring to fig. 5, the heating assembly 4 further includes a heating element 42, where at least a portion of the heating element 42 is disposed in the accommodating cavity 41, so as to heat the heating medium located in the accommodating cavity 41, thereby improving heat exchange efficiency of the heating medium.

In a further embodiment of the present utility model, the heating element 42 is a PTC heater, which has small thermal resistance, high heat exchange efficiency and high safety, and can exchange heat with the heat exchange medium rapidly, so as to ensure the safety of the compressor 100.

The present utility model also proposes a compressor 100 having the above-described embodiment.

According to the compressor 100 of the embodiment of the utility model, by arranging the lower end cover assembly 101 and the heating cavity 221 containing the heating medium, the refrigerant can be heated, so that the liquid in the refrigerant is heated and gasified, the refrigerant is prevented from being mixed with the lubricating oil in a liquid form to a certain extent, the concentration of the lubricating oil is ensured, the sufficient lubrication between the main shaft 3 and the bearing 31 is ensured, the abnormal abrasion of the compressor 100 is reduced, and the service life of the compressor 100 is prolonged.

The utility model further provides the air conditioner with the embodiment.

According to the air conditioner provided by the embodiment of the utility model, by arranging the compressor 100 and the heating cavity 221 containing the heating medium, the refrigerant can be heated, so that the liquid in the refrigerant is heated and gasified, the refrigerant is prevented from being mixed with the lubricating oil in a liquid form to a certain extent, the concentration of the lubricating oil is ensured, the sufficient lubrication between the main shaft 3 and the bearing 31 is ensured, the abnormal abrasion of the compressor 100 is reduced, and the service life of the compressor 100 is prolonged.

The utility model also provides a vehicle with the embodiment.

According to the vehicle provided with the air conditioner, the heating cavity 221 containing the heating medium is arranged, so that the refrigerant can be heated, and the liquid in the refrigerant is heated and gasified, thereby avoiding the mixture of the refrigerant and the lubricating oil in a liquid form to a certain extent, ensuring the concentration of the lubricating oil, ensuring the sufficient lubrication between the main shaft 3 and the bearing 31, reducing the abnormal abrasion of the compressor 100 and prolonging the service life of the compressor 100.

In some embodiments of the present utility model, the vehicle includes a driving motor and a battery, the heating component 4 is the driving motor or the battery, or the heating component 4 is a heat exchanging member after exchanging heat with the driving motor or the battery, which can utilize heat emitted by the driving motor or harmful heat generated by the driving motor and the battery during operation to heat the heating medium, recover and reuse waste heat generated during the operation of the vehicle, protect the environment to a certain extent, and reduce the production cost of the compressor 100 without providing an additional heating device.

Other constructions and operations of the lower end cap assembly 101, the compressor 100, the air conditioner, and the vehicle according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model 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 utility model, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A lower end cap assembly for a compressor (100), the compressor (100) comprising a main shaft (3), the lower end cap assembly (101) comprising:

the device comprises a lower end cover (2), wherein one side of the lower end cover (2) is provided with a bearing chamber (213), the lower end cover (2) is provided with a heating cavity (221) for accommodating heating medium, one end of a main shaft (3) is positioned in the bearing chamber (213), and a bearing (31) is arranged between the main shaft (3) and the inner wall of the bearing chamber (213);

-a heating assembly (4), the heating assembly (4) being adapted to heat a heating medium within the heating chamber (221).

2. The lower end cap assembly according to claim 1, wherein the heating assembly (4) has a receiving chamber (41) for receiving a heating medium, the heating chamber (221) having an inlet and an outlet, the receiving chamber (41) being in communication with the inlet and the outlet.

3. The lower end cap assembly according to claim 2, wherein the heating chamber (221) is ring-shaped extending in a circumferential direction of the bearing chamber (213), the inlet and outlet comprising an inlet (222) and an outlet (223), the inlet (222) and the outlet (223) both communicating with the heating chamber (221).

4. A lower end cap assembly according to claim 3, wherein the lower end cap (2) is provided with a suction hole (211), a line connecting the center of the inlet (222) and the center of the outlet (223) passes through the central axis of the heating chamber (221), and a line connecting the center of the inlet (222) and the center of the outlet (223) is parallel to the central axis of the suction hole (211).

5. The lower end cap assembly according to claim 4, wherein the inlet (222) is located away from the suction hole (211) with respect to the outlet (223) in an arrangement direction of the inlet (222) and the outlet (223).

6. The lower end cap assembly according to claim 2, wherein the heating chamber (221) is an open loop shape extending in a circumferential direction of the bearing chamber (213), the inlet and outlet include an inlet (222) and an outlet (223), the inlet (222) and the outlet (223) are both in communication with the heating chamber (221), and the inlet (222) and the outlet (223) are provided at both ends of the heating chamber (221) in the circumferential direction, respectively.

7. The lower end cover assembly according to claim 6, wherein the lower end cover (2) is provided with a suction hole (211), and the symmetry axis of the heating cavity (221) is perpendicular to the axis of the suction hole (211).

8. The lower end cap assembly according to claim 1, wherein the lower end cap (2) comprises:

the bearing chamber (213) is arranged on the lower end cover body (21), and a groove (214) is formed in one side of the lower end cover body (21) away from the bearing chamber (213);

the sealing cover plate (22) is arranged on one side, away from the bearing chamber (213), of the lower end cover body (21), the sealing cover plate (22) seals the opening of the groove (214), and the heating cavity (221) is jointly defined by the sealing cover plate (22) and the lower end cover body (21).

9. The lower end cover assembly according to claim 2, wherein the lower end cover (2) is provided with an air suction hole (211), the heating cavity (221) is communicated with the inlet and the outlet through a heat exchange tube (43), the inner diameter of the heat exchange tube (43) is D, the aperture of the air suction hole (211) is D, and the requirements are that: d=α×d, where α satisfies: alpha is more than or equal to 0.4 and less than or equal to 1.2.

10. The lower end cap assembly according to claim 2, wherein the heating assembly (4) further has a heating element (42), at least part of the heating element (42) being arranged within the receiving cavity (41).

11. Compressor, characterized in that it comprises a lower end cap assembly (101) according to any one of claims 1-10.

12. An air conditioner characterized by comprising a compressor (100) according to claim 11.

13. A vehicle comprising the air conditioner according to claim 12.

14. The vehicle according to claim 13, characterized in that the vehicle comprises a drive motor and a battery, the heating assembly (4) being a drive motor or a battery, or the heating assembly (4) being a heat exchanger exchanging heat with the drive motor or the battery.