CN212928583U

CN212928583U - Clutch for air conditioner compressor

Info

Publication number: CN212928583U
Application number: CN202020477856.9U
Authority: CN
Inventors: 张恩祖
Original assignee: Shanghai Guangyu Automobile Air Conditioning Compressor Co ltd
Current assignee: Shanghai Guangyu Automobile Air Conditioning Compressor Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-04-09
Anticipated expiration: 2030-04-03

Abstract

The utility model provides a clutch for air condition compressor, including with the sucking disc assembly, belt pulley and the coil assembly of the main shaft of perpendicular connection to air condition compressor, sucking disc assembly and coil assembly set up the both sides of belt pulley respectively, coil assembly is provided with the coil shell outward, the coil shell is provided with the opening between coil assembly and the belt pulley; the front cover of the air-conditioning compressor extends to one side of the main shaft close to the machine body of the automobile air-conditioning compressor, and the front cover surrounds at least one part of the main shaft; the front cover is connected with the coil shell in an integrated mode, and a groove surrounding the main shaft is formed in the joint of the front cover and the coil shell. Through the arrangement of the front cover and the coil shell which are integrally formed and the groove surrounding the main shaft at the joint, the impact force in the axial direction of the main shaft at the joint can be alleviated, and the inconvenience caused by the loss of the elastic element can be reduced.

Description

Clutch for air conditioner compressor

Technical Field

The utility model relates to a clutch for air condition compressor.

Background

At present, with the development of economic society in China and the improvement of living standard of people, the quantity of automobiles kept in China is larger and larger, and the requirement of people on the comfort of the automobiles is higher and higher. Since the compressor is a core component of an air conditioning system of a vehicle and determines a main component of a cooling effect of the air conditioning system, the compressor generally needs to have high reliability.

The electromagnetic clutch comprises a driving disc, a belt pulley and a magnetic coil, wherein the belt pulley is installed on the compressor through a bearing, the belt pulley is connected with an automobile engine, the coil is assembled on a compressor end cover on one side of the belt pulley, the other side of the belt pulley is provided with the driving disc, the driving disc is connected with a main shaft of the air-conditioning compressor, and the other side of the driving disc is provided with a resetting mechanism for separating the driving disc from the belt pulley. When the air conditioner is started, the coil is electrified to form the electromagnet, the driving disc is attracted to the direction of the belt pulley and is attached to the belt pulley, and the belt pulley drives the driving disc and the air conditioner compressor to operate due to the fact that large friction force exists between the driving disc and the end face of the belt pulley. Because the magnetic coil can be impacted physically when driving the belt pulley and the driving disc (or called sucker), the housing for accommodating the magnetic coil should have physical impact tolerance.

Document 1 (publication No. CN102906440A) discloses a clutch device including: a clutch assembly including a first rotary clutch portion, a second rotary clutch portion, a drive member, a wrap spring, and an actuator, the first and second rotary clutch portions being rotatably disposed about a rotational axis of the clutching device, the drive member being disposed about the rotational axis and having an internal clutch surface, the wrap spring having a first end, a second end, and a plurality of helical coils extending axially between the first and second ends, the first end being fixed to the first rotary clutch portion, the second end contacting the second rotary clutch portion, the helical coils being received against the internal clutch surface. In particular, referring to fig. 5 or 8 of document 1, in order to allow the spiral coil to withstand the impact force, document 1 separately provides a protective case outside the spiral coil and is combined with protective cases of other components.

The compressor can produce certain vibrations when the operation, and when the belt pulley was in operation, a shearing force can be produced between belt pulley and the magnetic isolation ring, and the action of clutch actuation release sucking disc in addition makes the sucking disc can strike the axial direction of belt pulley. If the protective cases are spliced in the manner of document 1, the spliced portions of the protective cases must be misaligned after the impact force is generated. Therefore, in the prior art, an elastic body is generally disposed at a position where displacement is easily generated, such as a splicing position, to perform buffering. Fig. 1 is a schematic structural view of a related art air conditioner compressor, and as shown in fig. 1, a suction cup 1 is opened and closed by a coil assembly 31 via a pulley 2. The housing 3 accommodating the coil assembly 31 is formed by joining a plurality of parts and then engaged with the front cover 4. In order to counteract displacement at the splice, the

resilient bodies

5 and 6 need to be arranged again at the

positions

5, 6 of the reference numerals.

However, after a certain period of time has elapsed, the elastic body is worn out, dropped out, and displaced, and therefore, the elastic body needs to be replaced, and parts of the clutch need to be removed at the time of replacement. Making equipment maintenance cost prohibitive.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the difficult defect of changing after wearing and tearing of casing concatenation department elastomer on current air condition compressor's clutch, provide a casing concatenation still less and the higher clutch that is used for air condition compressor of durability.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a clutch for an air conditioner compressor comprises a sucker assembly, a belt pulley and a coil assembly which are vertically connected to a main shaft of the air conditioner compressor, wherein the sucker assembly and the coil assembly are respectively arranged at two sides of the belt pulley; the front cover of the air-conditioning compressor extends to one side of the main shaft close to the machine body of the automobile air-conditioning compressor, and the front cover surrounds at least one part of the main shaft; the front cover is connected with the coil shell in an integrated mode, and a groove surrounding the main shaft is formed in the joint of the front cover and the coil shell.

Preferably, the groove is filled with an elastic object.

Preferably, the width of the bottom of the groove is smaller than the width of the top of the groove.

Preferably, the width of the groove gradually narrows with the depth of the groove.

Preferably, the groove is close to the inner wall of one side of the coil assembly and is perpendicular to the axis of the spindle.

Preferably, the coil assembly is attached to the coil housing on an inner wall of the coil housing on a side close to the spindle.

Preferably, the bottom of the groove extends to a surface flush with the inner wall of the coil housing on a side close to the spindle.

The utility model discloses an actively advance the effect and lie in: through the arrangement of the front cover and the coil shell which are integrally formed and the groove surrounding the main shaft at the joint, the impact force in the axial direction of the main shaft at the joint can be alleviated, and the inconvenience caused by the loss of the elastic element can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of an air conditioner compressor in the prior art.

Fig. 2 is a schematic structural diagram of a clutch for an air conditioner compressor according to a preferred embodiment of the present invention.

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of the clutch for the air conditioner compressor according to the embodiment. As shown in fig. 2, the clutch 100 for an air conditioner compressor according to the present embodiment includes a suction cup assembly (not shown, and referring to fig. 1 of the related art, for a specific position), which is vertically connected to the main shaft 5, a pulley 20, and a coil assembly 30. The suction cup assembly and the coil assembly 30 are respectively provided to both sides of the pulley 20.

The coil assembly 30 is externally provided with a coil housing 41, the coil housing 41 is provided with an opening between the coil assembly 30 and the belt pulley, specifically, the opening is provided in the direction of attracting the coil assembly 30 and the belt pulley 20, a front cover 43 of the air-conditioning compressor extends to one side of the main shaft 50 close to the body of the automobile air-conditioning compressor, the front cover 43 surrounds at least one part of the main shaft 50, and in this embodiment, the front cover 43 is sleeved with the main shaft 50. The front cover 43 is connected to the coil housing 41 in an integrally formed manner, and a groove 42 surrounding the spindle 50 is formed at the connection of the front cover 43 and the coil housing 41. As shown in fig. 2, a space 21 for fitting the pulley 20 is left at a position where the front cover 43 is coupled to the coil housing 41. The pulley 20 is coupled to the front cover 43 and the coil housing 41 through the space 21.

The coil assembly 30 is disposed in the coil housing 41, and the coil housing 41 has an opening on a side of the coil assembly 30 facing the pulley 20, and the chuck assembly is fixed to the spindle 50 by a hexagon bolt, so that when the coil assembly 30 is powered on by a voltage of 12V or 24V, the coil assembly 30 generates an electromagnetic field, and the magnetic force of the electromagnetic field causes the pulley 20 and the chuck assembly to form a loop. The electromagnetic force of the coil assembly 30 attracts the suction cup assembly to tightly attract the belt pulley 20, and when the belt pulley 20 rotates, the main shaft 50 is driven to rotate, and the work starts; when the coil assembly 30 is powered off, the electromagnetic force disappears, the suction cup assembly is separated from the belt pulley 20 by itself, and the operation is stopped after the suction cup assembly is separated from the belt pulley 20.

The recess 42 may then be filled with an elastomer. As described above, the suction cup assembly is repeatedly engaged with the pulley 20 by the coil assembly 30. In the prior art, the spliced shell is provided with the elastic object at the spliced position, so that the impact force generated by suction can weaken the influence on other devices of the compressor. However, as explained in the background, the elastomer at the splice is susceptible to breakage and difficult to maintain. In the present embodiment, after the groove 42 is formed between the integrally formed front cover 43 and the coil housing 41, the groove 42 is deformed by the impact force, and a part of the impact force is absorbed by the groove 42. For better results, the grooves 42 are filled with an elastomer to provide higher damping and better absorb the impact force.

The width of the bottom of the groove 42 is less than the width of the top of the groove 42. Since the bottom of the groove 42 is more affected by the impact, the wider top of the groove 42 can deform more to reduce the transmission of the impact force from the bottom closer to the coil assembly, the chuck assembly, and the bezel. Meanwhile, if the groove 42 is filled with the elastic material, the elastic material may be deformed by compression and form a more compact portion at the bottom of the groove 42.

Further, the width of the groove 42 becomes gradually narrower as the depth of the groove 42 becomes smaller. This may make the elastic more easily placed.

The groove 42 is formed adjacent to an inner wall of one side of the coil assembly 30, perpendicular to the axis of the main shaft 50. The coil assembly 30 is attached to the coil housing 41 on the inner wall of the coil housing 41 on the side close to the main shaft 50. The bottom of the groove 42 extends to a face flush with the inner wall of the coil housing 41 on the side close to the spindle 50. Because the amplitude of the shock wave generated when the suction cup assembly and the belt pulley are repeatedly attracted is mostly in the axial direction of the spindle 50, after the inner wall of one side of the groove 42 close to the coil assembly 30 is perpendicular to the axial direction of the spindle 50, the impact of the shock wave on the inner wall of the one side in the direction perpendicular to the axial direction is reduced, and the impact on the coil assembly 30 close to the inner wall of the one side in the direction perpendicular to the axial direction is reduced. On the basis, the coil assembly 30 can be attached to the coil housing 41 on the inner wall of the coil housing 41 near the spindle 50, so that the coil assembly 30 is fixed more firmly. Further, in order to exert the vibration absorbing function of the groove 42 to the maximum, the bottom of the groove 42 may be extended to a surface flush with the inner wall of the coil housing 41 on the side close to the main shaft 50.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A clutch for an air conditioner compressor, comprising a suction cup assembly vertically connected to a main shaft of the air conditioner compressor, a pulley, and a coil assembly, the suction cup assembly and the coil assembly being respectively provided to both sides of the pulley,

a coil housing is arranged outside the coil assembly, and an opening is formed in the coil housing between the coil assembly and the belt pulley;

the front cover of the air conditioner compressor extends to one side of the main shaft close to the machine body of the air conditioner compressor,

the front cover encloses at least a portion of the spindle;

the front cover is connected with the coil shell in an integrated forming way, a groove surrounding the main shaft is formed at the joint of the front cover and the coil shell,

and elastic objects are filled in the grooves.

2. The clutch for the air conditioner compressor as claimed in claim 1,

the width of the bottom of the groove is smaller than the width of the top of the groove.

3. The clutch for the air conditioner compressor as claimed in claim 2,

the width of the groove becomes gradually narrower with the depth of the groove.

4. The clutch for the air conditioner compressor as claimed in claim 3,

the groove is close to the inner wall of one side of the coil assembly and is perpendicular to the axis of the main shaft.

5. The clutch for the air conditioner compressor as claimed in claim 3,

the coil assembly is arranged on the inner wall of one side, close to the main shaft, of the coil shell and attached to the coil shell.

6. The clutch for the air conditioner compressor as claimed in claim 5,

the bottom of the groove extends to the surface which is flush with the inner wall of one side of the coil shell, which is close to the main shaft.