CN216278503U

CN216278503U - Oil storage structure of rotary vane type automobile air conditioner compressor

Info

Publication number: CN216278503U
Application number: CN202122989396.5U
Authority: CN
Inventors: 马炳新
Original assignee: Changzhou Kangpurui Automotive Air Conditioning Co ltd
Current assignee: Changzhou Kangpurui Automotive Air Conditioning Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-04-12
Anticipated expiration: 2031-12-01

Abstract

The utility model relates to the technical field of automobile air-conditioning compressors, in particular to an oil storage structure of a rotary vane type automobile air-conditioning compressor; comprises a compressor body having a front end cover, a rotor shaft and a shaft seal; the middle of the front end cover is provided with a first cavity which is axially communicated, and a first blocking rib is arranged in the first cavity; the rotor shaft is arranged in the first cavity; the shaft seal is sleeved on the rotor shaft, and one end face of the shaft seal is abutted to the first blocking rib; a second cavity is arranged in the shaft seal, a second blocking rib is arranged in the second cavity, and a gap is formed between the second blocking rib and the end face of the shaft seal; wherein, first fender muscle sets up the oil storage tank in the terminal surface bottom with the bearing seal butt, oil storage tank top and second cavity intercommunication. The utility model provides an oil storage structure of a rotary vane type automobile air conditioner compressor, which can prevent lubricating oil from leaking, eliminate a felt ring, save the production cost and improve the reliability of products.

Description

Oil storage structure of rotary vane type automobile air conditioner compressor

Technical Field

The utility model relates to the technical field of automobile air-conditioning compressors, in particular to an oil storage structure of a rotary vane type automobile air-conditioning compressor.

Background

The rotary vane type automobile air-conditioning compressor is a third generation automobile air-conditioning compressor and is a core component of an automobile air-conditioning system. The rotary vane type automobile air conditioner compressor needs the external (engine) to provide the running power, and the specific structure is shown in figure 1: the rotor shaft extends out of the engine body and is externally connected with a clutch belt pulley, and the belt pulley is connected with an engine driving wheel through a belt.

In order to ensure the internal sealing performance of the compressor, a shaft seal is required to be arranged between the rotor shaft and the front end cover, so that the refrigerant and lubricating oil in the compressor are prevented from leaking. However, when the compressor works, the rotor shaft rotates at a high speed, and the front end cover is static, so that absolute sealing cannot be realized; in addition, the pressure inside the compressor is always higher than the external atmospheric pressure. Both of these conditions can result in leakage of lubricant from between the shaft seal and the rotor shaft as shown in FIG. 2. Therefore, the felt 01 is arranged on the inner wall of the front end cover in the prior art, and the oil flowing out is completely absorbed.

However, because the felt 01 is industrial fine hair, the texture is soft, the assembly is not good, if the felt 01 is assembled badly and is higher than the belt pulley, the clutch can be influenced to be sucked, and serious quality accidents are caused.

In view of the above problems, the present inventors have actively researched and innovated based on practical experience and professional knowledge that is abundant over years in engineering application of such products and in cooperation with the application of theory, and have designed an oil storage structure of a rotary vane type automobile air conditioner compressor, which prevents leakage of lubricating oil, can eliminate a felt, saves production cost, and improves product reliability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil storage structure of a rotary vane type automobile air conditioner compressor, aiming at overcoming the defects in the prior art, and solving the problems of high production cost and poor product reliability caused by the fact that lubricating oil is easy to leak and a felt ring for absorbing oil needs to be installed in the prior art.

In order to achieve the above object, the present invention adopts a technical solution comprising:

a compressor body having a front end cover, a rotor shaft, and a shaft seal; the middle of the front end cover is provided with a first cavity which is axially communicated, and a first blocking rib is arranged in the first cavity; the rotor shaft is arranged in the first cavity; the shaft seal is sleeved on the rotor shaft, and one end face of the shaft seal is abutted to the first blocking rib; a second cavity is arranged in the shaft seal, a second blocking rib is arranged in the second cavity, and a gap is formed between the second blocking rib and the end face of the shaft seal; the first blocking rib is provided with an oil storage groove at the bottom of the end face abutted to the shaft seal, and the top end of the oil storage groove is communicated with the second cavity.

Furthermore, the lowest position of the oil storage groove is lower than the lowest position of the end surface, which is abutted to the first blocking rib, on the shaft seal.

Further, the top surface of the first blocking rib is higher than the top surface of the second blocking rib.

Furthermore, the side face, close to the first blocking rib, of the second blocking rib is provided with a first inclined face, and the top end of the first inclined face inclines towards the direction far away from the first blocking rib.

Further, the top of the oil storage tank is of a structure gradually furling from bottom to top.

Furthermore, the side wall of the second cavity between the first blocking rib and the second blocking rib is set to be a second inclined surface, and one end, close to the first blocking rib, of the second inclined surface is inclined downwards.

Further, the top end of the oil storage tank is provided with a chamfer structure.

Further, the depth of the oil storage groove is smaller than 1/2 of the thickness of the first stop rib.

Through the technical scheme of the utility model, the following technical effects can be realized:

the oil storage structure of rotary vane type vehicle air conditioner compressor who designs stores the lubricating oil that will outwards leak through the oil storage tank, prevents that lubricating oil from spilling to can make the compressor body cancel and set up the felt, reduce required part of compressor and assembly step, thereby practice thrift manufacturing cost, and eliminate the accident risk that the felt probably caused, improve product reliability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a side sectional view of a conventional rotary vane type air conditioner compressor for an automobile according to the background of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A in the background of the utility model;

FIG. 3 is a side sectional view of an oil storage structure of a vane type compressor for an automobile air conditioner according to an embodiment of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at B in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a front end cap according to an embodiment of the present invention;

reference numerals: felt 01, front end cover 1, first cavity 11, first fender muscle 12, oil storage tank 13, chamfer structure 14, bearing seal 2, second cavity 21, second fender muscle 22, first inclined plane 23, second inclined plane 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

An oil storage structure of a rotary vane type automobile air conditioner compressor is shown in figures 3-5 and comprises:

a compressor body having a front end cover 1, a rotor shaft and a shaft seal 2; the middle of the front end cover 1 is provided with a first cavity 11 which is axially communicated, and a first baffle rib 12 is arranged in the first cavity 11; the rotor shaft is arranged in the first cavity 11; the shaft seal 2 is sleeved on the rotor shaft, and one end face of the shaft seal is abutted against the first blocking rib 12; a second cavity 21 is arranged in the shaft seal 2, a second blocking rib 22 is arranged in the second cavity 21, and a gap is formed between the second blocking rib 22 and the end face of the shaft seal 2; other structures of the compressor main body are the prior art, and therefore are not described in detail; wherein, the first fender muscle 12 sets up oil storage tank 13 in the terminal surface bottom with bearing seal 2 butt, and oil storage tank 13 top and second cavity 21 intercommunication.

Concretely, when the inside lubricating oil of compressor leaks from bearing seal 2's the laminating department with the axle, and cross second fender muscle 22 and when flowing out to first fender muscle 12 direction, can flow into the part that lies in between first fender muscle 12 and the second fender muscle 22 in the second cavity 21 earlier, because this department and oil storage tank 13 intercommunication, lubricating oil finally can flow into oil storage tank 13, to these lubricating oil that are about to outwards flow storing through oil storage tank 13, thereby prevent that lubricating oil from spilling, and then can make the compressor body cancel felt circle 01's setting, reduce the required part of compressor and assembly step, and save manufacturing cost, and eliminate the accident risk that felt circle 01 probably causes, improve product reliability.

Because the diameter of the one end face that bearing seal 2 and first fender muscle 12 offset will be less than the diameter of first cavity 11 lateral wall usually, make and to have the interval between bearing seal 2 side and the first cavity 11 lateral wall, consequently preferably, make the lowest of oil storage tank 13 be less than the lowest of the terminal surface that bearing seal 2 goes up and first fender muscle 12 offset to make the lubricating oil that gets into oil storage tank 13 can also flow into the interval between bearing seal 2 side and the first cavity 11 lateral wall in, thereby increase the volume of the lubricating oil that can store, further increase the leak protection oil ability of this oil storage structure.

Preferably, the top surface of the first rib 12 is higher than the top surface of the second rib 22, and the kinetic energy contained in the lubricating oil can be obviously weakened after the lubricating oil crosses the second rib 22, and at this time, the higher first rib 12 is arranged to block the lubricating oil, so that the lubricating oil can hardly cross, and the oil leakage prevention capability of the oil storage structure is further improved.

The side surface of the second rib 22 close to the first rib 12 is provided with a first inclined surface 23, preferably, the top end of the first inclined surface 23 inclines towards the direction far away from the first rib 12, and the first inclined surface 23 and the side surface of the first rib 12 form a shape gradually converging from top to bottom. Further, the top of oil storage tank 13 sets up to the structure that draws in gradually from up down, with the shape cooperation that draws in that first inclined plane 23 and first fender muscle 12 formed, forms great about and the less shape of interlude, makes the lubricating oil of top can get into oil storage tank 13 easily, but difficult follow oil storage tank 13 in return the top, also can further increase this oil storage structure's leak protection oily ability.

The side wall of the second cavity 21 between the first rib 12 and the second rib 22 is set as a second inclined surface 24, and one end of the second inclined surface 24 close to the first rib 12 is inclined downward. Further, the top end of the oil reservoir 13 is provided with a chamfered structure 14. This structure can guide the lubricating oil so that the lubricating oil can more easily enter the oil reservoir 13.

The depth of the oil reservoir 13 is preferably 1/2 which is less than the thickness of the first bead 12, reducing the effect of the oil reservoir 13 on the structural strength of the first bead 12.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An oil storage structure of a rotary vane type automobile air conditioner compressor is characterized by comprising a compressor main body, a rotary vane type automobile air conditioner compressor and a rotary vane type automobile air conditioner compressor, wherein the compressor main body is provided with a front end cover (1), a rotor shaft and a shaft seal (2); a first cavity (11) which is axially communicated is arranged in the middle of the front end cover (1), and a first stop rib (12) is arranged in the first cavity (11); the rotor shaft is arranged in the first cavity (11); the shaft seal (2) is sleeved on the rotor shaft, and one end face of the shaft seal is abutted against the first blocking rib (12); a second cavity (21) is arranged in the shaft seal (2), a second blocking rib (22) is arranged in the second cavity (21), and a gap is formed between the second blocking rib (22) and the end face of the shaft seal (2); the first baffle rib (12) is provided with an oil storage groove (13) at the bottom of the end face abutted to the shaft seal (2), and the top end of the oil storage groove (13) is communicated with the second cavity (21).

2. The oil storage structure of the rotary vane type air conditioner compressor for the automobile according to claim 1, wherein the lowest position of the oil storage groove (13) is lower than the lowest position of the end surface of the shaft seal (2) abutting against the first blocking rib (12).

3. The oil storage structure of a vane rotary compressor for an automobile air conditioner according to claim 1, wherein the top surface of the first barrier rib (12) is higher than the top surface of the second barrier rib (22).

4. The oil storage structure of the rotary vane type air conditioner compressor for the automobile according to claim 1, wherein the side of the second blocking rib (22) close to the first blocking rib (12) is provided with a first inclined surface (23), and the top end of the first inclined surface (23) is inclined in the direction away from the first blocking rib (12).

5. The oil storage structure of the rotary vane type air conditioner compressor for the automobile according to claim 4, wherein the top of the oil storage tank (13) is provided with a structure gradually converging from bottom to top.

6. The oil storage structure of the rotary vane type air conditioner compressor for the automobile according to claim 1, wherein a side wall of the second cavity (21) between the first rib (12) and the second rib (22) is provided with a second inclined surface (24), and one end of the second inclined surface (24) close to the first rib (12) is inclined downwards.

7. The oil storage structure of the rotary vane type air conditioner compressor for the automobile according to claim 6, wherein a chamfer structure (14) is provided at the top end of the oil storage tank (13).

8. The oil storage structure of a vane rotary type air conditioner compressor of claim 1, wherein the depth of the oil storage groove (13) is less than 1/2 of the thickness of the first stopper rib (12).