CN206234111U

CN206234111U - A kind of whirlpool dish structure of scroll compressor of automobile air conditioner

Info

Publication number: CN206234111U
Application number: CN201621186704.3U
Authority: CN
Inventors: 张恩祖; 祝妍; 陈官宝
Original assignee: SHANGHAI GUANGYU AUTOMOBILE AIR CONDITIONING COMPRESSOR CO Ltd
Current assignee: Shanghai Guangyu Automotive Air Conditioning Compressor Co., Ltd.
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2017-06-09
Anticipated expiration: 2026-11-04

Abstract

The utility model discloses a kind of whirlpool dish structure of scroll compressor of automobile air conditioner, it includes the fixed scroll and the movable orbiting scroll that cooperate, from whirlpool dish-type line center original position to tail end, segmentation offers some sections of oil grooves on the increment face of the fixed scroll and the increment face of the movable orbiting scroll, the oil groove is arranged on the cross section in the increment face, on the increment face of the movable orbiting scroll by two positions of auxiliary exhaust ports on the bottom of the tooth face of the fixed scroll at, it is not provided with the oil groove, the increment face of the movable orbiting scroll always covers two auxiliary exhaust ports under guarantee working condition, so as to ensure not mutual gas blowby between two compression chambers adjacent with the auxiliary exhaust ports.The tank structure that the utility model is provided reduces the contact area of dynamic and static whirlpool disk increment face and bottom surface, and lubricity is substantially increased by sump oil, improves few oil drag and occlusion problem of the orbiting and fixed scroll increment face and bottom surface, improves compressor performance.

Description

A kind of whirlpool dish structure of scroll compressor of automobile air conditioner

Technical field

The utility model is related to a kind of whirlpool dish structure of scroll compressor of automobile air conditioner.

Background technology

In existing scroll compressor of automobile air conditioner, dynamic and static whirlpool disk increment face and bottom of the tooth face are fitted all the time, larger patch Closing area causes the few oil drag of contact surface.Under compressor normal operating conditions, because dynamic and static whirlpool disk constantly carries out gas pressure Contracting and self friction can produce higher temperature, dynamic and static whirlpool disk that increment face and bottom surface scuffing easily occur because of material of the same race, Dynamic and static whirlpool disk increment face and the heavy wear of bottom of the tooth face, abnormal sound and vibration is caused to increase, performance considerable decrease even compressor operating Stop.

In the prior art in order to solve this problem, some technological means are also used, for example, dynamic and static whirlpool disk is entered respectively Different surface treatment modes go to change the Facing material of dynamic and static whirlpool disk, so-called surface treatment refers generally to be processed in part After the completion of, in one layer of very thin film of outer plated surface, film plating layer thickness is general in 0.005-0.02mm, will not substantially change profile And size, but long-term work can make whirlpool, and disk increment surface wear is serious, soon grinds off coating, makes two kinds of identical material phases Mutual friction, or even can be bonded together.That is, the simple surface treatment that multi-form is carried out to dynamic and static whirlpool disk, still Can not solve the problems, such as because contact surface is big, insufficient lubrication causes serious wear.

Increase the mode of wear plate in increment face or bottom of the tooth face for example, also having again, this mode can make the tooth root of whirlpool disk not Fillet can be set, can so cause whirlpool disk root stress to be concentrated, whirlpool disk tooth risk of breakage aggravation.Therefore, how to design a kind of new Technical scheme but can effectively solve the problems, such as above-mentioned in the case where profile size is not changed, and be that technical staff to be considered.

Utility model content

The technical problems to be solved in the utility model is to overcome the dynamic and static whirlpool disk of prior art when coordinating due to rubbing Wipe power it is big caused by the influence normal work such as serious wear, the sound be big defect, and provide a kind of air conditioning for automobiles scroll compression The whirlpool dish structure of machine.

The utility model is to solve above-mentioned technical problem by following technical proposals：

The utility model provides a kind of whirlpool dish structure of scroll compressor of automobile air conditioner, and it includes that cooperate one is quiet Whirlpool disk and a movable orbiting scroll, its feature is, from whirlpool dish-type on the increment face of the fixed scroll and the increment face of the movable orbiting scroll Line center original position offers some sections of oil grooves to tail end segmentation, and the oil groove is arranged on the cross section in the increment face, On the increment face of the movable orbiting scroll by two positions of auxiliary exhaust ports on the bottom of the tooth face of the fixed scroll at, be not provided with institute State oil groove, it is ensured that the increment face of the movable orbiting scroll always covers two auxiliary exhaust ports under working condition, so as to protect Not mutual gas blowby between card two compression chambers adjacent with the auxiliary exhaust ports.

In the utility model, the shape of the oil groove can be not construed as limiting, preferably with whirlpool dish-type line profile identical Curved slot or arc groove.

It is preferred that the width of the oil groove is not less than the position that the oil groove is offered on 0.5mm, and the increment face Place, the both sides wall thickness in the increment face is not less than 0.5mm.

It is preferred that the depth of the oil groove is 0.1~2mm.

It is preferred that the increment face of the fixed scroll is fitted with the bottom of the tooth face of the movable orbiting scroll, the increment face of the movable orbiting scroll Fitted with the bottom of the tooth face of the fixed scroll.

It is preferred that forming three pairs of cavity volumes between the fixed scroll and the movable orbiting scroll, the cavity volume includes a pair of suctions Air cavity, a pair of middle pressure chambers and a pair of discharge chambers.

It is preferred that the center of the discharge chamber is additionally provided with a main vent in the fixed scroll.

When screw compressor runs well, these cavity volumes will be continually changing.Because dynamic and static whirlpool disk flank is mutually nibbled Close, increment face is to be similar to fit completely, therefore the low-pressure gas of suction is constantly compressed with the operating of movable orbiting scroll, institute's shape Into gases at high pressure discharged through the main vent of fixed scroll and two auxiliary exhaust ports.

In the utility model, segmentation opens up the purpose of oil groove：1st, difficulty of processing is reduced, there is provided oil groove width stability.2、 When movable orbiting scroll increment face is by two auxiliary exhaust ports in fixed scroll bottom of the tooth face, oil groove must not be set.Remain movable orbiting scroll tooth End face covers two auxiliary exhaust ports, to prevent between different compression chambers mutually gas blowby.

Positive effect of the present utility model is：The tank structure that the utility model is provided reduces dynamic and static whirlpool disk Increment face and the contact area of bottom surface, lubricity is substantially increased by sump oil, improve the orbiting and fixed scroll increment face and Few oil drag and occlusion problem of bottom surface, improve compressor performance.

Brief description of the drawings

Fig. 1 is the dynamic and static whirlpool disk mated condition sectional view of the utility model embodiment 1.

Fig. 2 is the dynamic and static whirlpool disk mated condition top view of the utility model embodiment 1.

Fig. 3 is the top view of dynamic and static another mated condition of whirlpool disk of the utility model embodiment 1.

Fig. 4 is the tank structure schematic diagram in the increment face of the fixed scroll of the utility model embodiment 1.

Fig. 5 is the tank structure schematic diagram in the increment face of the movable orbiting scroll of the utility model embodiment 1.

Description of reference numerals is as follows：

Fixed scroll：1

Movable orbiting scroll：2

Auxiliary exhaust ports：3

Suction muffler：4

Middle pressure chamber：5

Discharge chamber：6

Oil groove：7

Specific embodiment

Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.

Embodiment 1

As shown in Fig. 1~5, a kind of whirlpool dish structure of scroll compressor of automobile air conditioner is present embodiments provided, it includes phase The fixed scroll 1 for mutually coordinating and a movable orbiting scroll 2, from whirlpool on the increment face of the fixed scroll 1 and the increment face of the movable orbiting scroll 2 Dish-type line center original position offers some sections of oil grooves 7 to tail end segmentation, and the oil groove 7 is arranged on the transversal of the increment face On face, on the increment face of the movable orbiting scroll 2 by two positions of auxiliary exhaust ports 3 on the bottom of the tooth face of the fixed scroll 1 at, It is not provided with the oil groove 7, it is ensured that two auxiliary exhaust ports 3 are always covered in the increment face of the movable orbiting scroll 2 under working condition Cover, so that ensure not mutual gas blowby between two compression chambers adjacent with the auxiliary exhaust ports 3, to improve compressor Energy.

In the present embodiment, the shape of the oil groove 7 can be not construed as limiting, such as recessed with whirlpool dish-type line profile identical curve Groove or arc groove can be with.The width of the oil groove 7 is not less than offering the oil groove 7 on 0.5mm, and the increment face At position, the both sides wall thickness in the increment face is not less than 0.5mm.The depth of the oil groove 7 is 0.1~2mm.The fixed scroll 1 increment face is fitted with the bottom of the tooth face of the movable orbiting scroll 2, and the increment face of the movable orbiting scroll 2 is pasted with the bottom of the tooth face of the fixed scroll 1 Close.

Form three pairs of cavity volumes between the fixed scroll 1 and the movable orbiting scroll 2, the cavity volume include a pair of suction mufflers 4, A pair of middle pressure chambers 5 and a pair of discharge chambers 6.The center of the discharge chamber 6 is additionally provided with a main vent in the fixed scroll 1. When screw compressor runs well, these cavity volumes will be continually changing.Because movable orbiting scroll 2 is mutual with the flank of fixed scroll 1 Engagement, increment face is to be similar to fit completely, therefore the low-pressure gas of suction is constantly compressed with the operating of movable orbiting scroll 2, The gases at high pressure for being formed are discharged through the main vent of fixed scroll 1 and two auxiliary exhaust ports 3.

The whirlpool dish structure that the present embodiment is provided reduces increment face and the contact area of bottom surface of movable orbiting scroll 2 and fixed scroll 1, Lubricity is substantially increased by the trapped fuel of oil groove 7, the few oil drag and occlusion for improving the orbiting and fixed scroll increment face and bottom surface are asked Topic, improves compressor performance.

Claims

1. a kind of whirlpool dish structure of scroll compressor of automobile air conditioner, the whirlpool dish structure includes the fixed scroll and for cooperating Movable orbiting scroll, it is characterised in that from whirlpool dish-type line center on the increment face of the fixed scroll and the increment face of the movable orbiting scroll Beginning, position offered some sections of oil grooves to tail end segmentation, and the oil groove is arranged on the cross section in the increment face, the dynamic whirlpool On the increment face of disk by two positions of auxiliary exhaust ports on the bottom of the tooth face of the fixed scroll at, be not provided with the oil groove, The increment face of the movable orbiting scroll always covers two auxiliary exhaust ports under ensureing working condition, thus ensure with it is described Not mutual gas blowby between two adjacent compression chambers of auxiliary exhaust ports.

2. whirlpool dish structure as claimed in claim 1, it is characterised in that being shaped as the oil groove is identical with whirlpool dish-type line profile Curved slot.

3. whirlpool dish structure as claimed in claim 1, it is characterised in that the width of the oil groove is not less than 0.5mm, and the tooth Offered on end face at the position of the oil groove, the both sides wall thickness in the increment face is not less than 0.5mm.

4. whirlpool dish structure as claimed in claim 1, it is characterised in that the depth of the oil groove is 0.1~2mm.

5. whirlpool dish structure as claimed in claim 1, it is characterised in that the increment face of the fixed scroll and the tooth of the movable orbiting scroll Bottom surface is fitted, and the increment face of the movable orbiting scroll is fitted with the bottom of the tooth face of the fixed scroll.

6. whirlpool dish structure as claimed in claim 1, it is characterised in that three pairs are formed between the fixed scroll and the movable orbiting scroll Cavity volume, the cavity volume includes a pair of suction mufflers, a pair of middle pressure chambers and a pair of discharge chambers.

7. whirlpool dish structure as claimed in claim 6, it is characterised in that the center of the discharge chamber in the fixed scroll also It is provided with a main vent.