CN201679692U

CN201679692U - Structure for preventing coil from loosening between cylinder cover and coil in compressor

Info

Publication number: CN201679692U
Application number: CN2010205169390U
Authority: CN
Inventors: 董荣镛
Original assignee: SHANGHAI GUANGYU AUTOMOTIVE AIR CONDITIONING COMPRESSOR CO Ltd
Current assignee: Shanghai Guangyu Automotive Air Conditioning Compressor Co., Ltd.
Priority date: 2010-09-06
Filing date: 2010-09-06
Publication date: 2010-12-22
Anticipated expiration: 2020-09-06

Abstract

The utility model relates to a structure for preventing a coil from loosening between a cylinder cover and the coil in a compressor. The structure comprises a cylinder cover and a coil cover. A raised platform below the coil cover is in clearance fit with a groove below the cylinder cover. A circular groove is added on a contact flat surface between the cylinder cover and the coil cover. An elastic body is placed in the groove. The utility model has the advantage that the aluminum alloy cylinder cover is enabled not to be worn because the return elasticity of the compressed elastic body in the groove of the cylinder cover is used to cushion and reduce the impact force of the coil cover leftward and rightward pushing force and the rotating torque force generated because the coil is frequently conducted.

Description

Be used for loosening cylinder cap of anti-coil and the structure between the coil cap in the compressor

Technical field

The utility model relates to a kind of automobile air conditioner compressor, relates in particular to the structure between this automobile air conditioner compressor cylinder cap and the coil cap.

Background technique

By Fig. 1, Fig. 2 as seen: magnetic clutch comprises in the automobile air conditioner compressor: the electromagnetic coil assembly, pulley assembly 30 and the Suction cup assembly 40 that are combined by coil housing 21 and coil cap 20; And be installed on (left side) cylinder cap 10 of compressor assembly.

Magnetic clutch adopts mounting type generally the coil cap in the electromagnetic coil assembly 20 to be installed in the right neck of cylinder cap 10 in the prior art, fixes with circlip for shaft 50; Pulley assembly 30 is installed in the left neck of cylinder cap 10, and Suction cup assembly 40 is installed the compressor main shaft left end.Drive the belt pulley operation by belt during the motor car engine operation, when moving, the needs air condition compressor can connect electromagnetic coil assembly, under the effect of electromagnetic field, Suction cup assembly 40 is moved right and the pulley assembly adhesive, thereby make Suction cup assembly 40 drive the work of main axis rotation compressor operating.

Because automotive air-conditioning system compressor when operation need frequently be opened sometimes and stop, when switching on and off electromagnetic coil assembly, electromagnetic coil assembly is under the electromagnetic force reaction, can produce left and right sides thrust and rotation torque, for fear of electromagnetic coil assembly generation move left and right and rotation, the existing structure form is installed in the boss 20a (as shown in Figure 1) of 20 belows of the coil cap in the electromagnetic coil assembly among the lower grooves 10a of cylinder cap 10 (as shown in Figure 3), with the rotation of restriction electromagnetic coil assembly, and limit the electromagnetic coil assembly move left and right with circlip for shaft 50.

But because production has certain error, when electromagnetic coil assembly is installed on the right neck of cylinder cap 10, can enter in cylinder cap 10 circlip grooves (as shown in Figure 4) for the ease of circlip for shaft 50, cylinder cap 10 size k need greater than coil cap 20 thickness size m and circlip for shaft 50 thickness size n sums, be Spielpassung, its gap delta=k-(m+n).The lower grooves 10a hole width of the boss 20a of coil cap 20 belows and cylinder cap 10 is answered Spielpassung equally and the gap occurred in addition.Under the effect of the frequent connection of above-mentioned coil and coil cap alternation left and right sides Driving force and rotation torque power impact force, aluminum alloy cylinder cover can wear and tear, thereby the gap increases, and clutch was lost efficacy cause compressor fault.

Summary of the invention

The utility model technical issues that need to address have provided and have been used for loosening cylinder cap of anti-coil and the structure between the coil cap in a kind of compressor, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: cylinder cap and coil cap; The boss of described coil cap below and the lower grooves Spielpassung of described cylinder cap; Contact plane place with coil cap on described cylinder cap increases by a circular groove; In described groove, place an elastomer.

Compared with prior art, the beneficial effects of the utility model are: owing to cushioning by compressed elastomer Flexible Reset in the cylinder cap groove and reducing coil and frequently connect the impact force that produces coil cap left and right sides Driving force and rotation torque power, make aluminum alloy cylinder cover can not wear and tear.

Description of drawings

Fig. 1 is an automobile air conditioner compressor partial structurtes schematic representation in the prior art;

Fig. 2 is an A place enlarged view among Fig. 1;

Fig. 3 is the left view of cylinder cap among Fig. 1;

Fig. 4 is a partial enlarged drawing between circlip among Fig. 1, coil cap and the cylinder cap;

Fig. 5 is the utility model structural representation;

Fig. 6 is the left view of cylinder cap among Fig. 5;

Fig. 7 is circlip, coil cap and a cylinder cap structural representation in specific embodiment of the utility model;

Fig. 8 is circlip, coil cap and a cylinder cap structural representation in another specific embodiment of the utility model;

Fig. 9 is a belleville spring structural representation among Fig. 7;

Figure 10 is a rubber structure schematic representation among Fig. 8.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

By Fig. 5, Fig. 6 as seen: the utility model comprises: cylinder cap 10 and coil cap 20; The boss 20a of described coil cap 20 belows and the lower grooves 10a Spielpassung of described cylinder cap 10; Contact plane place with coil cap 20 on described cylinder cap 10 increases by a circular groove 10b; In described groove 10b, place an elastomer 60;

By Fig. 7, Fig. 9 as seen: described elastomer 60 is belleville spring 60a; Described belleville spring 60a modes of emplacement is: near coil cap 20 planes, inner (small end) contacts with cylinder cap groove 10b bottom outer end (big end);

By Fig. 8, Figure 10 as seen: described elastomer 60 is a non-metal elastomers; Described non-metal elastomers is rubber 60b; The surface contacts with cylinder cap groove 10b bottom with coil cap 20 respectively about rubber 60a.

Among above-mentioned Fig. 7-Figure 10: circlip 50, cylinder cap 10 size k need to be Spielpassung, its gap delta=k-(m+n) greater than coil cap 20 thickness size m and circlip for shaft 50 thickness size n sums.

The utility model increases by a groove at the contact plane place of cylinder cap and coil cap, and groove shapes is that circular groove is used to place an elastomer part.Firmly effect is leaned on coil cap to the right when coil block is installed in cylinder cap, compression exceeds the elastomer of cylinder cap surface of contact, contact with cylinder lid surface until coil cap, circlip for shaft is installed again, and can cushion and reduce above-mentioned coil and frequently connect the impact force that produces coil cap left and right sides Driving force and rotation torque power this moment by compressed elastomer Flexible Reset in the cylinder cap groove.

The elastomer of placing in the cylinder cap groove can be a metal spring, metal spring more reasonably can adopt belleville spring, the preferable modes of emplacement of belleville spring is that outer end (big end) is near the coil cap plane, can when coil cap is installed, be in contact with it the outer end, and inner (small end) contacts with the cylinder cap bottom portion of groove.Behind electromagnetic coil assembly and circlip for shaft installation cylinder cap, under the metal dish spring effect in the groove, the impact force that produces when the online coil assembly in its gap is frequently connected plays buffer function, the destruction of avoiding impact force to produce under the effect of metal dish spring.

The elastomer of placing in the cylinder cap groove also can be non-metallic elastic body, and non-metal elastomers can adopt rubber, and the surface contacts with the cylinder cap bottom portion of groove with coil cap respectively about rubber.After electromagnetic coil assembly and circlip for shaft were being installed cylinder cap, the rubber elastomer in the groove was compressed, and the impact force that produces when the online coil assembly in its gap is frequently connected plays buffer function under the rubber elasticity effect, the destruction of avoiding impact force to produce.Elastomer rubber also can be used the elastic resin material substitution.

Claims

1. be used for loosening cylinder cap of anti-coil and the structure between the coil cap in a compressor, comprise: cylinder cap and coil cap; The boss of described coil cap below and the lower grooves Spielpassung of described cylinder cap; It is characterized in that: the contact plane place with coil cap on described cylinder cap increases by a circular groove; In described groove, place an elastomer.

2. be used for loosening cylinder cap of anti-coil and the structure between the coil cap in the compressor according to claim 1, it is characterized in that: described elastomer is a belleville spring; Described belleville spring modes of emplacement is: the outer end is near the coil cap plane, and the inner contacts with the cylinder cap bottom portion of groove.

3. be used for loosening cylinder cap of anti-coil and the structure between the coil cap in the compressor according to claim 1, it is characterized in that: described elastomer is a non-metal elastomers; Described non-metal elastomers is a rubber; The surface contacts with the cylinder cap bottom portion of groove with coil cap respectively about rubber.