CN201943950U

CN201943950U - Scroll compressor capable of achieving energy conservation by axially relieving pressure at high speed

Info

Publication number: CN201943950U
Application number: CN201120058545XU
Authority: CN
Inventors: 龚家骐; 汪桂楠
Original assignee: WEILE AUTOMOBILE AIR CONDITIONER CO Ltd SHANGHAI
Current assignee: WEILE AUTOMOBILE AIR CONDITIONER CO Ltd SHANGHAI
Priority date: 2011-03-08
Filing date: 2011-03-08
Publication date: 2011-08-24
Anticipated expiration: 2021-03-08

Abstract

The utility model provides a scroll compressor capable of achieving energy conservation by axially relieving pressure at a high speed. The scroll compressor comprises a front cover, wherein a crank shaft is arranged inside the front cover; a pushing plate is arranged on the end surface of the front cover; an eccentric sleeve is arranged on the crank shaft; an orbiting scroll provided with a bearing is arranged on the eccentric sleeve; an anti-rotation mechanism is arranged at the bottom part of the orbiting scroll, and the bottom part of the orbiting scroll is contacted with the end surface of the pushing plate; the molded line of the orbiting scroll and the molded line of a fixed scroll are meshed with each other so as to form a crescent volume cavity; a partition board component is installed on the back side of the fixed scroll, and a high-pressure cavity is formed between the back side of the fixed scroll and a rear cover; and the scroll compressor is characterized in that a flexible device is arranged in a groove or a counter bore formed on the front cover, and the flexible device is contacted with the pushing plate. The scroll compressor adopts the axial pressure relief at a high speed, so as to achieve the energy conservation.

Description

Thereby axial pressure release realizes energy-conservation scroll compressor down at a high speed

Technical field

The utility model relates under a kind of high speed axially, and thereby pressure release realizes energy-conservation scroll compressor, belongs to car air conditioner scroll compressor technical field of structures.

Background technique

Traditional car air conditioner scroll compressor main motion parts is made up of static vortex disk, movable orbiting scroll, eccentric bushing, bent axle, anti-rotation mechanism, push pedal etc.Wherein eccentric bushing is assemblied on the bent axle, movable orbiting scroll is assemblied on the eccentric bushing by bearing, along with clockwise rotating of bent axle, movable orbiting scroll is done revolution motion around the axle center, the symmetrical crescent shape mold cavity volume that forms between movable orbiting scroll and the static vortex disk is constantly diminished finally enter hyperbaric chamber from static vortex disk bottom centre hole.

Along with the rising of speed of crankshaft, hyperbaric chamber pressure also constantly raises, and compressor refrigerating capacity also constantly increases.Fig. 1 is certain brand 68 scroll compressor performance test plotted curve, the also corresponding height of this compressor refrigerating capacity high-revolving time the as seen from the figure, and vehicle that this compressor mates does not need so high refrigerating capacity, causes waste.

Summary of the invention

The purpose of this utility model provides a kind of energy-conservation scroll compressor.

In order to achieve the above object, axial pressure release realizes energy-conservation scroll compressor under a kind of high speed thereby the technical solution of the utility model has provided, comprise protecgulum, bent axle is located in the protecgulum, end face at protecgulum is provided with push pedal, bent axle is provided with eccentric bushing, eccentric bushing is provided with the movable orbiting scroll that tape spool holds, there is anti-rotation mechanism the movable orbiting scroll bottom and contacts with the push pedal end face, the molded lines of movable orbiting scroll is meshed with the molded lines of static vortex disk and forms the crescent shape cavity volume, the static vortex disk back side is equipped with baffle assembly and forms hyperbaric chamber with bonnet, it is characterized in that: in the groove of protecgulum or counterbore, be provided with the flexible body device, the flexible body device contacts with push pedal, when flexible body device movable orbiting scroll and quiet whirlpool dish axial contact seal under free situation, when the flexible body device is subjected to surpassing the power of a setting value, the flexible body compression makes push pedal and movable orbiting scroll movement therewith, movable orbiting scroll and static vortex disk axially form the gap pressure release, when the flexible body device is subjected to less than the power of a setting value constantly, the flexible body device restores and makes movable orbiting scroll axially contact the assurance refrigerating capacity with static vortex disk.

Further, described flexible body device is a kind of in cylindrical fluid spring, metal pressure spring, dish spring or the rubber pad, and quantity is at least 3.

Described flexible body device is a kind of in annular fluid spring, metal pressure spring, dish spring or the rubber pad, and quantity is 1.

Described flexible body device is located in the range of movement of described movable orbiting scroll and described push pedal surface of contact.

A kind of scroll compressor that the utility model provides has adopted axial pressure release down at a high speed, thereby has realized energy-conservation.

Description of drawings

Fig. 1 is former car air conditioner scroll compressor performance chart;

A kind of scroll compressor axial seal view that Fig. 2 provides for the utility model;

Fig. 3 is an axial seal state gap enlarged diagram;

The axial pressure release view of a kind of scroll compressor that Fig. 4 provides for the utility model;

Fig. 5 is an axial pressure release gap enlarged diagram;

Fig. 6 A is a cylindrical fluid spring side sectional view;

Fig. 6 B is a cylindrical fluid spring plan view;

Fig. 7 A is an annular fluid spring side sectional view;

Fig. 7 B is an annular fluid spring plan view;

Fig. 8 is a movable orbiting scroll surface of contact schematic representation;

Fig. 9 is movable orbiting scroll surface of contact range of movement schematic representation in push pedal;

Figure 10 is a scroll compressor performance chart of the present utility model.

Embodiment

Specify the utility model below in conjunction with embodiment.

Embodiment

As Fig. 2 and shown in Figure 4, axial pressure release realizes energy-conservation scroll compressor under a kind of high speed thereby the utility model provides, comprise protecgulum 10, bearing and bent axle 4 are installed in protecgulum 10 holes, end face has push pedal 6, flexible body device 7 is installed between push pedal 6 and protecgulum 10 counter sinks, setting-up eccentricity cover 3 on the bent axle 4, the movable orbiting scroll 2 of mounting strap bearing on the eccentric bushing 3, there is anti-rotation mechanism 5 movable orbiting scroll 2 bottoms and contacts with push pedal 6 end faces, the movable orbiting scroll molded lines is meshed with the static vortex disk molded lines and forms the crescent shape cavity volume, and static vortex disk 1 back side is equipped with baffle assembly 9 and forms hyperbaric chamber with bonnet 8.The restriction with anti-rotation mechanism 5 of turning clockwise along with bent axle 4, movable orbiting scroll 2 is done revolution motion around static vortex disk 1 center, the crescent shape cavity volume that makes static vortex disk 1 and movable orbiting scroll 2 form moves from outside to inside and volume constantly diminishes, pressure raises, and enters hyperbaric chamber until pushing dividing plate 9 open from the discharge of static vortex disk 1 bottom outlet.

As shown in Figure 3, flexible body device 7 is movable orbiting scroll 2 and static vortex disk 1 axial contact seal under free situation, and the clearance D 1 between push pedal 6 and protecgulum 10 end faces keeps 0.01～0.05mm.As shown in Figure 5, when Compressor Discharge Pressure reaches setting value F (F value size is tried to achieve by the required refrigerating capacity of joining vehicle), flexible body device 7 is subjected to force compresses, makes push pedal 6 and movable orbiting scroll 2 movement therewith, and movable orbiting scroll 2 forms 0.01～0.05mm axial clearance D2 pressure release with static vortex disk 1.When being lower than setting value F, flexible body device 7 restores and makes movable orbiting scroll 2 axially contact the assurance refrigerating capacity with static vortex disk 1.Refrigerating capacity, exhaust pressure, power consumption will remain on an equilibrium value after compressor surpasses certain rotating speed.

Flexible body device 7 is a kind of in cylindrical fluid spring 11, metal pressure spring, dish spring or the rubber pad shown in Fig. 6 A and Fig. 6 B, and quantity is at least 3.This device inside is compressible fluid, and internal pressure is F1, and the vertical pressurized of the outside end face of piston surpasses F1 will be to lower slider, the number of F=F1 * flexible body device 7.

Perhaps, what flexible body device 7 also can be in the annular fluid spring 12 shown in Fig. 7 A and Fig. 7 B, metal pressure spring, dish spring or the rubber pad is a kind of, and quantity is 1.This device inside is compressible fluid, and internal pressure is F2, and the vertical pressurized of the outside end face of piston surpasses F2 will be to lower slider, F=F2.

Flexible body device 7 is located in as shown in Figure 8 movable orbiting scroll 2 and the range of movement of push pedal 6 surface of contact 13 in push pedal 6, and shade is shown among this range of movement such as Fig. 9.

Thereby under a kind of high speed that the utility model provides axially pressure release realize energy-conservation scroll compressor the performance test plotted curve as shown in figure 10.

Claims

Thereby under the high speed axially pressure release realize energy-conservation scroll compressor, comprise protecgulum (10), bent axle (4) is located in the protecgulum (10), end face at protecgulum (10) is provided with push pedal (6), bent axle (4) is provided with eccentric bushing (3), eccentric bushing (3) is provided with the movable orbiting scroll (2) that tape spool holds, there is anti-rotation mechanism (5) movable orbiting scroll (2) bottom and contacts with push pedal (6) end face, the molded lines of movable orbiting scroll (2) is meshed with the molded lines of static vortex disk (1) and forms the crescent shape cavity volume, static vortex disk (1) back side is equipped with baffle assembly (9) and forms hyperbaric chamber with bonnet (8), it is characterized in that: in the groove of protecgulum (10) or counterbore, be provided with flexible body device (7), flexible body device (7) contacts with push pedal (6), when flexible body device (7) movable orbiting scroll (2) and quiet whirlpool dish (1) axial contact seal under free situation, when flexible body device (7) is subjected to surpassing the power of a setting value, the flexible body compression makes push pedal (6) and movable orbiting scroll (2) movement therewith, movable orbiting scroll (2) axially forms the gap pressure release with static vortex disk (1), when flexible body device (7) is subjected to less than the power of a setting value constantly, flexible body device (7) restores and makes movable orbiting scroll (2) and static vortex disk (1) axially contact the assurance refrigerating capacity.
2. thereby axial pressure release realizes energy-conservation scroll compressor under a kind of high speed as claimed in claim 1, it is characterized in that: a kind of in cylindrical fluid spring (11), metal pressure spring, dish spring or the rubber pad of described flexible body device (7), quantity is at least 3.
3. thereby axial pressure release realizes energy-conservation scroll compressor under a kind of high speed as claimed in claim 1, it is characterized in that: a kind of in annular fluid spring (12), metal pressure spring, dish spring or the rubber pad of described flexible body device (7), quantity is 1.
4. thereby axial pressure release realizes energy-conservation scroll compressor under a kind of high speed as claimed in claim 1, it is characterized in that: described flexible body device (7) is located in described movable orbiting scroll (2) and the range of movement of described push pedal (6) surface of contact (13) in push pedal (6).