CN217976603U

CN217976603U - Adjusting mechanism and compressor with same

Info

Publication number: CN217976603U
Application number: CN202221397704.3U
Authority: CN
Inventors: 卢浩; 陈肖汕; 符增辉; 杨帆; 邓瑞
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-12-06
Anticipated expiration: 2032-06-06

Abstract

The utility model provides an adjustment mechanism and have its compressor, adjustment mechanism's at least part is used for setting up in the medium circulation passageway, and the medium circulation passageway includes the mainstream passageway and the circulation branch road that communicate each other, and adjustment mechanism includes: the moving assembly is arranged in the main flow channel and can be movably arranged under the pressure action of a medium in the main flow channel; the adjusting component is at least partially inserted in the circulation branch and attached to the inner wall surface of the circulation branch, a throttling channel for circulating a medium is arranged on the surface of the adjusting component, and the throttling channel extends along the length direction of the adjusting component; wherein, adjusting part is connected with the removal subassembly to drive adjusting part along the extending direction removal of flow through branch road through the removal subassembly. The utility model provides a lower problem of pump body stability that back pressure in the compressor among the prior art can't adjust and lead to.

Description

Adjusting mechanism and compressor with same

Technical Field

The utility model relates to a compressor internal pressure adjusts technical field particularly, relates to an adjustment mechanism and have its compressor.

Background

With the development of the times and the continuous progress of the society, the requirements of people on the quality of life are higher and higher. The air conditioner is a necessity of daily life, people only have requirements on performance of the air conditioner at first, and with the influence of global warming on the concept of people and the improvement of consciousness of people on the aspect of environmental protection, people gradually have dual requirements on performance and environmental protection of the air conditioner. The compressor is used as the heart of the air conditioner, and the selection of the refrigerant directly determines whether the air conditioner can pollute the environment.

At present, CO ₂ The (carbon dioxide) refrigerant has the advantages of environmental protection, no pollution and accordance with the current development trend; at the same time, however, the disadvantages are also apparent, CO ₂ The inherent properties of the refrigerant determine that it must operate in a high pressure environment, so CO ₂ The suction pressure, the exhaust pressure and the pressure in a compression cavity of the scroll compressor are far higher than those of the scroll compressor of a conventional refrigerant, the span of working pressure is large, the low pressure can reach 5MPa, and the high pressure can even reach more than 12 MPa. Due to CO ₂ The pressure in the compression cavity of the scroll compressor is overlarge, so that the movable scroll plate and the fixed scroll plate are easily separated from each other in an impact manner, and leakage is caused.

Most people now adopt a method of leading exhaust pressure to the back surface of a movable disc to press the movable disc as back pressure to solve the problem, but CO is used for solving the problem ₂ The pressure span of the refrigerant during working is very large, and when the pressure of a compression cavity is small and the introduced back pressure is too large, the pump body is easy to be blocked; when the pressure of the compression cavity is large and the back pressure is too small, leakage is easily caused, and CO is caused ₂ The pump body stability of the scroll compressor is reduced.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide an adjustment mechanism and have its compressor to the lower problem of pump body stability that back pressure in the compressor among the solution prior art can't be adjusted and lead to.

In order to achieve the above object, according to an aspect of the present invention, there is provided an adjusting mechanism, at least a part of which is arranged in a medium circulation passage, the medium circulation passage including a main flow passage and a circulation branch passage communicating with each other, the adjusting mechanism including: the moving assembly is arranged in the main flow channel and can be movably arranged under the pressure action of a medium in the main flow channel; the adjusting component is at least partially inserted in the circulation branch and attached to the inner wall surface of the circulation branch, a throttling channel for circulating a medium is arranged on the surface of the adjusting component, and the throttling channel extends along the length direction of the adjusting component; wherein, adjusting part is connected with the removal subassembly to drive adjusting part along the extending direction removal of flow through branch road through the removal subassembly.

Further, the throttle passage extends along a curved trajectory from the first end to the second end of the regulating member; and/or the throttling passages are multiple and are arranged at intervals along the circumferential direction of the adjusting part.

Further, the removal subassembly includes first removal body, and the regulating part includes first regulation body, is provided with first throttle passage on the first regulation body, and first regulation body sets up on first removal body, and the removal subassembly still includes: the first connecting piece is arranged on the first moving body, protrudes relative to the surface of the first moving body and is connected with the first adjusting body.

Further, the movable assembly further comprises a second movable body, the second movable body and the first movable body are arranged oppositely and connected with each other, the adjusting part further comprises a second adjusting body, a second throttling channel is arranged on the second adjusting body, the second adjusting body is arranged on the second movable body, the second movable body moves under the action of pressure of a medium in the main flow channel, and the movable assembly further comprises: the second connecting piece is arranged on the second moving body, protrudes relative to the surface of the second moving body and is connected with the second adjusting body.

Furthermore, a plurality of first tooth grooves are formed in the first moving body and are arranged at intervals along the extending direction of the first moving body; the second removes and is provided with a plurality of second tooth grooves on the body, and a plurality of second tooth grooves set up along the extending direction interval that the second removed the body, and the removal subassembly still includes: the connecting gear is meshed with the first tooth groove and the second tooth groove respectively, and the second moving body is driven to move by the connecting gear in the moving process.

Furthermore, a limiting groove is formed in the first movable body, the limiting groove extends along the length direction of the first movable body, and at least part of the second movable body is inserted into the limiting groove and is in clearance fit with the limiting groove.

Furthermore, the first moving body comprises a first plate and a second plate which are connected with each other, an included angle is formed between the first plate and the second plate, the limiting groove is formed in the bottom surface of the first plate, and the first adjusting body is connected with the first plate; the second moving body comprises a third plate, a fourth plate and a fifth plate which are sequentially connected, the third plate and the fifth plate are arranged oppositely, at least part of the fifth plate is inserted into the limiting groove, and the second adjusting body is arranged on the third plate.

Further, the second moving body further comprises a sixth plate, the sixth plate is connected to one end, far away from the fourth plate, of the third plate, and the sixth plate is located between the second plate and the fourth plate; the adjustment mechanism further includes: and the elastic component is arranged in a telescopic manner along the first direction, and two ends of the elastic component are respectively connected with the second plate and the sixth plate.

According to the utility model discloses an on the other hand provides a compressor, including compressor body and adjustment mechanism, adjustment mechanism sets up on the compressor body, and adjustment mechanism is foretell adjustment mechanism.

Further, the compressor further includes: the exhaust cavity is arranged on the compressor body; the back pressure cavity is arranged on the compressor body; the oil gas passageway sets up on compressor body, and the both ends of oil gas passageway communicate with exhaust chamber and backpressure chamber respectively, and adjustment mechanism's at least part sets up in the oil gas passageway.

Furthermore, the adjusting mechanism is the adjusting mechanism, the oil-gas passage comprises a main passage and a first branch passage which are communicated with each other, and one end of the first branch passage, which is far away from the main passage, is communicated with the back pressure cavity; the first movable body and the second movable body are both arranged in the main passage, and the first adjusting body is arranged in the first branch.

Furthermore, the compressor also comprises an air suction cavity, the oil-gas passage also comprises a second branch, and two ends of the second branch are respectively communicated with the air suction cavity and the back pressure cavity; the second adjustment body is disposed within the second branch.

Further, the compressor further includes: the mounting bracket is arranged on the side of a movable scroll of the compressor, the backpressure cavity is arranged between the mounting bracket and the movable scroll, the mounting bracket is provided with a mounting cavity communicated with the oil-gas passage, and the first moving body and the second moving body are both arranged in the mounting cavity; pushing the second moving body to move through the medium in the mounting cavity; first branch road and second branch road all set up in the installing support.

Furthermore, a communicating channel is also arranged on the mounting bracket and is respectively communicated with the first branch and the back pressure cavity; the mounting bracket is provided with a discharge passage, and the backpressure cavity is communicated with the second branch through the discharge passage.

By applying the technical proposal of the utility model, the adjusting mechanism comprises a moving component and an adjusting component, the moving component is arranged in the main flow channel, the adjusting component is arranged in the main flow channel, when the medium flows into the main flow channel from the main flow channel, the purpose of adjusting the medium flow in the main flow channel is achieved by the adjusting component, in particular, the moving component can be movably arranged under the pressure action of the medium in the main flow channel, thus the flow in the main flow channel can be automatically adjusted according to the pressure of the medium in the main flow channel, when the medium pressure in the main flow channel is larger, the moving stroke of the moving component is increased, the moving stroke of the adjusting component is increased, when the medium pressure in the main flow channel is smaller, the moving stroke of the moving component is smaller, the moving stroke of the adjusting component is smaller, because the surface of the adjusting component is provided with a throttling channel, the adjusting part is attached to the inner wall surface of the circulation branch, so that a medium can only flow into the circulation branch from the main flow channel through the throttling channel, when the adjusting part moves along the extending direction of the circulation branch, the matching stroke of the adjusting part and the circulation branch is changed, when the adjusting part is gradually drawn out from the circulation branch, the contact area of the throttling channel and the main flow channel is increased, the flow of the medium flowing from the main flow channel to the circulation branch is increased, conversely, when the adjusting part is gradually inserted into the circulation branch, the contact area of the throttling channel and the main flow channel is reduced, the flow of the medium flowing from the main flow channel to the circulation branch is reduced, the medium pressure in the circulation branch can be automatically adjusted according to the pressure of the medium in the main flow channel, and the purpose of automatically adjusting the medium pressure is achieved.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of an adjusting mechanism according to the invention;

fig. 2 shows a schematic structural view of a first moving body of the adjusting mechanism according to the invention;

fig. 3 shows a schematic structural view of a second moving body of the adjusting mechanism according to the invention;

fig. 4 shows a schematic structural view of an adjusting part of an adjusting mechanism according to the invention;

fig. 5 shows a schematic structural view of a connecting gear of an adjusting mechanism according to the invention;

fig. 6 shows a schematic structural view of a compressor according to the present invention;

fig. 7 shows a schematic view of the mounting of the adjusting mechanism in the compressor according to the invention;

fig. 8 shows a schematic structural view of a mounting bracket in a compressor according to the present invention;

fig. 9 shows an exploded view of the structure of the mounting bracket and the cover plate in the compressor according to the present invention.

Wherein the figures include the following reference numerals:

1. a moving assembly; 11. a first moving body; 12. a second moving body; 13. a first connecting member; 14. a second connecting member; 110. a first tooth slot; 120. a second tooth slot; 15. a connecting gear; 111. a limiting groove; 112. a first plate member; 113. a second plate member; 121. a third plate member; 122. a fourth plate member; 123. a fifth plate member; 124. a sixth plate member; 16. a gear connecting shaft; 17. a sealing member;

2. an adjustment member; 20. a throttling channel; 21. a first adjustment body; 22. a second adjustment body; 3. an elastic member; 210. a first throttle channel; 220. a second throttling passage; 23. lightening holes;

100. a compressor body; 200. an adjustment mechanism; 101. an exhaust chamber; 102. a back pressure chamber; 103. an oil gas passage; 1030. a main path; 1031. a first branch; 1032. a second branch circuit; 104. an air suction cavity; 300. mounting a bracket; 301. a mounting cavity; 302. a communication channel; 303. a discharge passage; 400. a movable scroll; 500. a cover plate; 501. through the hole; 600. a fixed scroll; 700. a housing; 1033. and a third branch.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 5, the present invention provides an adjusting mechanism, at least a portion of the adjusting mechanism is disposed in a medium flowing channel, the medium flowing channel includes a main flowing channel and a flowing branch, the adjusting mechanism includes: the moving assembly 1 is arranged in the main flow channel, and the moving assembly 1 can be movably arranged under the pressure action of a medium in the main flow channel; the adjusting component 2 is at least partially inserted in the circulation branch and attached to the inner wall surface of the circulation branch, a throttling channel 20 for circulating a medium is arranged on the surface of the adjusting component 2, and the throttling channel 20 extends along the length direction of the adjusting component 2; the adjusting component 2 is connected with the moving component 1, so that the moving component 1 drives the adjusting component 2 to move along the extending direction of the flow branch.

According to the adjusting mechanism provided by the utility model, the moving component 1 and the adjusting component 2 are included, the moving component 1 is arranged in the main flow channel, the adjusting component 2 is arranged in the flow branch, when the medium flows from the main flow channel to the flow branch, the purpose of adjusting the medium flow in the flow branch is achieved through the adjusting part 2, specifically, the moving component 1 is movably arranged under the pressure of the medium in the main flow channel, thus the flow in the circulation branch can be automatically adjusted according to the pressure of the medium in the main flow channel, when the pressure of the medium in the main flow channel is larger, the moving stroke of the moving component 1 is increased, the moving stroke of the adjusting component 2 is driven to be increased, when the pressure of the medium in the main flow channel is smaller, the moving stroke of the moving component 1 is smaller, the moving stroke of the adjusting component 2 is driven to be smaller, because the surface of the adjusting component 2 is provided with the throttling channel 20, the adjusting component 2 is attached to the inner wall surface of the circulation branch, thus the medium can only flow from the main flow channel to the circulation branch through the throttling channel 20, and when the adjusting component 2 moves along the extending direction of the flow-through branch, the matching stroke of the adjusting component 2 and the flow-through branch is changed, when the regulating part 2 is gradually drawn out from the inside of the flow branch to the outside, the contact area of the throttling channel 20 and the main flow channel is increased, the flow rate of the medium flowing from the main flow channel to the flow branch is increased, and conversely, when the regulating member 2 is gradually inserted into the flow branch passage, the contact area of the throttle passage 20 with the main flow passage is reduced, the flow rate of the medium flowing from the main flow passage to the flow branch passage is reduced, therefore, the medium pressure in the circulation branch can be automatically adjusted according to the pressure of the medium in the main flow channel, and the purpose of automatically adjusting the medium pressure is achieved.

Specifically, as shown in fig. 4, the throttle passage 20 extends along a curved trajectory in a direction from the first end to the second end of the adjusting member 2; and/or the throttle passage 20 is plural, and the plural throttle passages 20 are provided at intervals in the circumferential direction of the adjusting member 2. This arrangement makes it possible to increase the length of the throttle passage 20, thereby optimizing the throttling effect of the throttle passage 20. Preferably, the adjusting part 2 is also provided with a lightening hole 23 in the middle for lightening the overall weight of the adjusting mechanism.

In the first embodiment of the adjusting component 2 provided by the present invention, the adjusting component 2 is cylindrical, and the throttling channel 20 is disposed on the adjusting component 2 along a spiral track.

In the second embodiment of the adjusting member 2 provided by the present invention, the adjusting member 2 is prism-shaped, and each side surface of the adjusting member 2 is provided with one or more throttling passages 20, and the throttling passages 20 extend along the S-shaped track.

In the embodiment provided by the present invention, as shown in fig. 1 and fig. 2, the moving assembly 1 includes a first moving body 11, the adjusting component 2 includes a first adjusting body 21, a first throttling channel 210 is provided on the first adjusting body 21, the first adjusting body 21 is provided on the first moving body 11, and the moving assembly further includes: and a first connecting member 13 provided on the first moving body 11, the first connecting member 13 protruding with respect to a surface of the first moving body 11, the first connecting member 13 being connected with the first regulating body 21. The first moving body 11 and the first adjusting body 21 are connected through the first connecting piece 13, and meanwhile the first connecting piece 13 protrudes relative to the first moving body 11, so that a first avoidance interval is formed between the first adjusting body 21 and the first moving body 11, and the first adjusting body 21 can move in the flow branch conveniently.

Further, as shown in fig. 3, the moving assembly 1 further includes a second moving body 12, the second moving body 12 is disposed opposite to and connected to the first moving body 11, the adjusting member 2 further includes a second adjusting body 22, a second throttling channel 220 is disposed on the second adjusting body 22, the second adjusting body 22 is disposed on the second moving body 12, the second moving body 12 moves under the pressure of the medium in the main flow channel, and the moving assembly further includes: and a second connecting member 14 provided on the second moving body 12, the second connecting member 14 protruding with respect to a surface of the second moving body 12, the second connecting member 14 being connected with a second regulating body 22. Set up like this when the circulation branch road is two, set up first regulation body 21 and second regulation body 22 respectively in two circulation branch roads, can adjust the flow of two circulation branch road medium simultaneously, through setting up second connecting piece 14, second connecting piece 14 is for the surperficial protrusion of second removal body 12, makes second regulation body 22 and second removal body 12 between have the second and dodge the interval, makes things convenient for the second to adjust body 22 and removes in the circulation branch road.

The second moving body 12 and the first moving body 11 are disposed opposite to each other and connected to each other, and when the second moving body 12 moves, the second moving body 12 drives the first moving body 11 to move, so as to drive the first adjusting body 21 and the second adjusting body 22 to move simultaneously.

In the specific implementation process, as shown in fig. 1 and 5, a plurality of first tooth sockets 110 are arranged on the first moving body 11, and the plurality of first tooth sockets 110 are arranged at intervals along the extending direction of the first moving body 11; the second moving body 12 is provided with a plurality of second tooth grooves 120, the plurality of second tooth grooves 120 are arranged at intervals along the extending direction of the second moving body 12, and the moving assembly 1 further comprises: the connecting gear 15 is engaged with the first tooth groove 110 and the second tooth groove 120, and the first moving body 11 is driven to move by the connecting gear 15 in the moving process of the second moving body 12. In the process of moving the second moving body 12, the connecting gear 15 is respectively engaged with the first tooth groove 110 and the second tooth groove 120, so that the first moving body 11 can be driven to move towards the direction opposite to the second moving body 12, and the first adjusting body 21 and the second adjusting body 22 move in opposite directions, so as to adjust the flow of the medium in the flowing branch in different states. Wherein, connecting gear 15 is set up in the mainstream passageway through gear connecting shaft 16, and connecting gear 15 rotates around gear connecting shaft 16.

In order to ensure that the first moving body 11 and the second moving body 12 move synchronously and the first moving body 11 keeps on a predetermined track in the moving process, the first moving body 11 is provided with a limiting groove 111, the limiting groove 111 extends along the length direction of the first moving body 11, and at least part of the second moving body 12 is inserted into the limiting groove 111 and is in clearance fit with the limiting groove 111. Therefore, in the moving process of the second moving body 12, the second moving body 12 is limited by matching with the limiting groove 111 of the first moving body 11, and the moving track of the first moving body 11 is limited.

In the embodiment provided by the present invention, as shown in fig. 2 and 3, the first moving body 11 includes a first plate 112 and a second plate 113 connected to each other, an included angle is formed between the first plate 112 and the second plate 113, the limiting groove 111 is disposed on the bottom surface of the first plate 112, and the first adjusting body 21 is connected to the first plate 112; the second moving body 12 includes a third plate 121, a fourth plate 122, and a fifth plate 123 connected in sequence, the third plate 121 is disposed opposite to the fifth plate 123, at least a portion of the fifth plate 123 is inserted into the limiting groove 111, and the second adjusting body 22 is disposed on the third plate 121. The installation space for installing the connecting gear 15 is defined by the third plate 121, the fourth plate 122 and the fifth plate 123, and meanwhile, the relative limiting effect of the first moving body 11 and the second moving body 12 can be realized, so that the whole structure of the adjusting mechanism is more compact, and the occupied space is reduced.

Wherein, the second moving body 12 further comprises a sixth plate 124, the sixth plate 124 is connected to an end of the third plate 121 far from the fourth plate 122, and the sixth plate 124 is located between the second plate 113 and the fourth plate 122; the adjustment mechanism further includes: and the elastic part 3 is arranged in a telescopic manner along the first direction, and two ends of the elastic part 3 are respectively connected with the second plate 113 and the sixth plate 124. Therefore, when the pressure of the medium in the main flow channel is gradually reduced and the second moving body 12 cannot move under the pressure of the medium, the elastic restoring force of the elastic component 3 is utilized to push the second moving body 12 to return to the initial position, and meanwhile, under the action of the connecting gear 15, the second moving body 12 drives the first moving body 11 to return to the initial position.

As shown in fig. 6 to 9, the present invention further provides a compressor, which includes a compressor body 100 and an adjusting mechanism 200, wherein the adjusting mechanism 200 is disposed on the compressor body 100, and the adjusting mechanism 200 is the adjusting mechanism 200 of the above embodiment.

Specifically, the compressor further includes: a discharge chamber 101 provided on the compressor body 100; a back pressure chamber 102 provided on the compressor body 100; and the oil-gas passage 103 is arranged on the compressor body 100, two ends of the oil-gas passage 103 are respectively communicated with the exhaust cavity 101 and the back pressure cavity 102, and at least part of the adjusting mechanism 200 is arranged in the oil-gas passage 103. Through set up adjustment mechanism 200 in oil gas passageway 103, utilize adjustment mechanism 200 to adjust the medium pressure that flows to back pressure chamber 102 by oil gas passageway 103, in order to avoid the pressure in back pressure chamber 102 too high, cause and move vortex dish 400 and fixed vortex dish 600 card dead, or the pressure in back pressure chamber 102 is undersized, cause and move vortex dish 400 towards the direction removal of keeping away from fixed vortex dish 600, cause the intracavity medium of compression to reveal, utilize adjustment mechanism 200, can be according to the pressure automatic regulation of the interior medium of exhaust chamber 101 inflow oil gas passageway 103 to the pressure in back pressure chamber 102, thereby improve the pump body stability of compressor, improve the compression efficiency and the volumetric efficiency of compressor.

In specific implementation, the adjusting mechanism 200 is the adjusting mechanism 200 of the above embodiment, the oil and gas passage 103 includes a main passage 1030 and a first branch passage 1031 which are communicated with each other, and one end of the first branch passage 1031 far away from the main passage 1030 is communicated with the back pressure chamber 102; the first moving body 11 and the second moving body 12 are both disposed in the main passage 1030, and the first adjusting body 21 is disposed in the first branch 1031. This causes the first regulating body 21 to move in the first branch 1031 by the pressure of the medium flowing into the main passage 1030, thereby regulating the pressure of the medium flowing into the back pressure chamber 102. When the pressure in the exhaust chamber 101 is too high, the pressure that flows into in the main passage 1030 is too big, first removal body 11 drives first regulation body 21 and takes out in 1031 by first branch gradually this moment, in order to reduce the throttling capacity, the pressure in increase backpressure chamber 102, in order to promote to move vortex dish 400 and be close to fixed vortex dish 600, avoid making the condition of pump body leakage take place because the axial force between the huge pump body under the superhigh pressure condition, guaranteed that the pump body is laminated as far as possible under the prerequisite of steady operation, reached the effect that improves compressor volumetric efficiency and compression efficiency.

Further, as shown in fig. 6 and 7, the compressor further includes a suction chamber 104, the oil-gas passage 103 further includes a second branch 1032, and both ends of the second branch 1032 are respectively communicated with the suction chamber 104 and the back pressure chamber 102; a second conditioning body 22 is disposed within the second branch 1032. When the pressure in the back pressure cavity 102 is gradually accumulated too much, the second adjustment body 22 is driven to be gradually drawn out from the second branch 1032 along with the movement of the second movable body 12, the throttling effect of the medium in the back pressure cavity 102 after passing through the second branch 1032 becomes weak, the pressure is conveniently released, the pressure accumulated in the back pressure cavity 102 flows back to the air suction cavity 104 along the second throttling channel 220 on the second adjustment body 22 at this time, the pressure release is completed, and therefore the power consumption loss of the compressor is reduced.

As shown in fig. 8 and 9, the compressor further includes: the mounting bracket 300 is arranged on the side of the movable scroll 400 of the compressor, the backpressure cavity 102 is arranged between the mounting bracket 300 and the movable scroll 400, the mounting bracket 300 is provided with a mounting cavity 301 communicated with the oil-gas passage 103, and the first moving body 11 and the second moving body 12 are both arranged in the mounting cavity 301; the second moving body 12 is pushed to move by the medium in the installation cavity 301; the first and

second branches

1031, 1032 are each disposed within the mounting bracket 300. In the installation process, the second plate 113 of the first moving body 11 is attached to the side wall surface of the installation cavity 301, the sealing part 17 is arranged on the second plate 113, the sealing part 17 is arranged along the circumferential direction of the second plate 113, and the sealing part 17 is attached to the side wall surface of the installation cavity 301, so that the friction force between the second plate 113 and the side wall surface of the installation cavity 301 can be reduced, and meanwhile, the sealing effect can be achieved between the second plate 113 and the installation cavity 301.

The mounting bracket 300 is further provided with a communication passage 302, and the communication passage 302 is respectively communicated with the first branch 1031 and the back pressure chamber 102; the mounting bracket 300 is provided with a discharge passage 303, and the back pressure chamber 102 communicates with the second branch 1032 through the discharge passage 303.

In specific implementation, the mounting bracket 300 is provided with the cover plate 500, the cover plate 500 is fixedly connected with the mounting bracket 300, the communication channel 302 is arranged on the connecting end surface of the mounting bracket 300, the communication channel 302 is recessed relative to the connecting end surface, and after the cover plate 500 is mounted, the communication channel 302 is sealed under the action of the cover plate 500.

The compressor further comprises a shell 700, the exhaust cavity 101 is arranged on the shell 700, the oil-gas passage 103 further comprises a third branch 1033, the third branch 1033 is arranged on the shell 700, two ends of the third branch 1033 are respectively communicated with the main passage 1030 and the exhaust cavity 101, the main passage 1030 is arranged in the mounting bracket 300, the cover plate 500 is provided with a through hole 501 used for communicating the main passage 1030 with the third branch 1033, and a medium exhausted from the exhaust cavity 101 sequentially passes through the third branch 1033 and the through hole 501 and then flows into the main passage 1030.

In the actual operation process, when the compressor operates under the ultrahigh pressure working condition, the pressure in the compression cavity between the pump bodies is very high, the gas axial force pushes the movable scroll 400 to operate towards the direction far away from the fixed scroll 600, and the two scrolls are easily separated to cause leakage, at this time, the back pressure introduced to the back side of the movable scroll 400 is increased by using the adjusting mechanism 200, the movable scroll 400 is pushed towards the fixed scroll 600 to prevent leakage of the pump body, when the compressor operates under the common working condition, the pressure in the compression cavity between the pump bodies is small, the axial force is also small, if the back pressure is too large, the movable scroll 400 can be subjected to a very large force towards the fixed scroll 600, the movable scroll 600 is easily blocked to cause the power consumption of the compressor to be increased and stopped, at this time, the back pressure introduced to the back side of the movable scroll 400 should be reduced, and the movable scroll 400 is balanced to prevent the pump body from being blocked.

The compressor in this embodiment is a horizontal scroll compressor, the movable scroll 400 starts to operate, continuously compresses gas with the fixed scroll 600 and outputs the gas to the exhaust chamber 101, and then high-pressure gas flows to the regulating mechanism 200 along the oil-gas passage 103 due to CO ₂ The operating characteristic of refrigerant, compressor are when keeping on operation, and this high-pressure gas can change along with the change of operating mode, and the span is very big.

If the working condition of the compressor operation is an ultrahigh pressure working condition, then the ultrahigh pressure gas passing through the oil-gas passage 103 acts on the fourth plate 122 of the second moving body 12, since the connecting gear 15 is fixed by the gear connecting shaft 16, as the high pressure gas pushes the second moving body 12 upward (in the direction approaching to the housing 700 in fig. 6), the elastic member 3 is compressed, the connecting gear 15 is respectively engaged with the first tooth groove 110 and the second tooth groove 120, the second moving body 12 drives the connecting gear 15 to rotate counterclockwise, at this time, the first moving body 11 moves downward, and drives the first adjusting body 21 to move downward, the volume of the first adjusting body 21 in the first branch 1031 becomes smaller, the throttling effect of the high pressure gas passing through the first throttling passage 210 becomes weaker, that is, the pressure drop of the ultrahigh pressure gas passing through the first throttling passage 210 becomes smaller, the pressure is higher, the gas continues to flow into the communication passage 302 on the connecting end face of the mounting bracket 300 along the first branch 1031 after passing through the throttling, the gas continues to flow into the back pressure chamber 102, the gas enters the dynamic pressure chamber 102, and then the gas acts on the back pressure plate 102 to directly to push the vortex disc 400 to the vortex compressor body 400 to prevent the vortex compressor from leaking under the condition that the vortex compressor 400, and the vortex efficiency is increased.

When the pressure in the back pressure cavity 102 is gradually accumulated to be too large, along with the counterclockwise rotation of the gear, the corresponding second adjusting body 22 also moves upwards along with the second moving body 12, so that the volume of the second adjusting body 22 in the second branch 1032 becomes small, the structural effect of the gas in the back pressure cavity 102 after passing through the second adjusting body 22 becomes weak, namely, the pressure drop through the second adjusting body 22 becomes small, the pressure is conveniently relieved, the pressure accumulated in the back pressure cavity 102 returns to the suction cavity 104 along the discharge channel 303 and the second throttling channel 220 at the moment, the pressure relief is completed, and therefore the power consumption loss of the compressor is reduced.

Meanwhile, the gas from the exhaust cavity 101 to the back pressure cavity 102 through the oil-gas passage 103 inevitably wraps up the refrigeration oil, the refrigeration oil can lubricate and cool the main bearing, the auxiliary bearing and other parts of the back pressure cavity 102, the reliability of the bearing is improved, the performance and the reliability of the compressor are further improved, and then the refrigeration oil flows back to the air suction cavity 104 through the second branch 1032 to lubricate the parts in the air suction cavity 104, so that the service life of the compressor is prolonged.

Further, if the operating mode of compressor operation becomes ordinary operating mode, then the pressure that second removal body 12 receives is less, under the effect of elastomeric element 3, connecting gear 15 clockwise rotates, make first regulation body 21 rebound, first regulation body 21 inserts gradually in first branch 1031, the throttling effect increases, through the gaseous pressure drop grow in first branch 1031, pressure diminishes, the gas that steps down through the developments flows to back pressure chamber 102 along communicating channel 302, give the less thrust of vortex dish 400 of moving, in order to prevent the dead condition of card of the pump body because the backpressure is too big under the ordinary operating mode, and simultaneously, second regulation body 22 moves downwards, insert gradually in second branch 1032, the throttling capacity grow, can satisfy the slow pressure release of less back pressure under this operating mode.

To sum up, no matter what kind of operating mode the scroll compressor moves, how pressure changes, all can pass through the utility model provides an adjustment mechanism carries out the size of dynamic adjustment back pressure, satisfies the demand of the pump body even running, lets compressor can be steady operation under various conditions and operating mode, and then improves scroll compressor's compression efficiency and volumetric efficiency.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

according to the adjusting mechanism provided by the utility model, the moving component 1 and the adjusting component 2 are included, the moving component 1 is arranged in the main flow channel, the adjusting component 2 is arranged in the flow branch, when the medium flows from the main flow channel to the flow branch, the purpose of adjusting the medium flow in the flow branch is achieved through the adjusting part 2, specifically, the moving component 1 is movably arranged under the pressure of the medium in the main flow channel, thus the flow in the circulation branch can be automatically adjusted according to the pressure of the medium in the main flow channel, when the pressure of the medium in the main flow channel is larger, the moving stroke of the moving component 1 is increased, the moving stroke of the adjusting component 2 is driven to be increased, when the pressure of the medium in the main flow channel is smaller, the moving stroke of the moving component 1 is smaller, the moving stroke of the adjusting component 2 is driven to be smaller, because the surface of the adjusting component 2 is provided with the throttling channel 20, the adjusting component 2 is attached to the inner wall surface of the circulation branch, thus the medium can only flow from the main flow channel to the circulation branch through the throttling channel 20, and when the adjusting component 2 moves along the extending direction of the flow-through branch, the matching stroke of the adjusting component 2 and the flow-through branch is changed, when the adjusting part 2 is gradually drawn out from the inside to the outside of the flow branch, the contact area between the throttling channel 20 and the main flow channel is increased, the flow rate of the medium flowing from the main flow channel to the flow branch is increased, and conversely, when the regulating member 2 is gradually inserted into the flow branch passage, the contact area of the throttle passage 20 with the main flow passage is reduced, the flow rate of the medium flowing from the main flow passage to the flow branch passage is reduced, therefore, the medium pressure in the circulation branch can be automatically adjusted according to the pressure of the medium in the main flow channel, and the purpose of automatically adjusting the medium pressure is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustment mechanism, at least part of which is intended to be arranged in a medium flow channel comprising a main flow channel and a flow branch communicating with each other, characterized in that the adjustment mechanism comprises:

a moving assembly (1) arranged within the main flow channel, the moving assembly (1) being movably arranged under the pressure of a medium within the main flow channel;

the adjusting device comprises an adjusting component (2), wherein at least part of the adjusting component (2) is inserted into the circulation branch and is attached to the inner wall surface of the circulation branch, a throttling channel (20) for circulating a medium is arranged on the surface of the adjusting component (2), and the throttling channel (20) extends along the length direction of the adjusting component (2);

the adjusting part (2) is connected with the moving assembly (1) so as to drive the adjusting part (2) to move along the extending direction of the circulation branch through the moving assembly (1).

2. The adjusting mechanism according to claim 1, characterized in that the throttle channel (20) extends along a curved trajectory from a first end to a second end of the adjusting part (2); and/or

The throttling passages (20) are multiple, and the throttling passages (20) are arranged at intervals along the circumferential direction of the adjusting part (2).

3. The adjustment mechanism according to claim 1, characterized in that the moving assembly (1) comprises a first moving body (11), the adjustment member (2) comprises a first adjustment body (21), a first throttling channel (210) is provided on the first adjustment body (21), the first adjustment body (21) is provided on the first moving body (11), the moving assembly further comprises:

-a first connecting element (13) arranged on said first moving body (11), said first connecting element (13) being convex with respect to the surface of said first moving body (11), said first connecting element (13) being connected with said first adjusting body (21).

4. The adjusting mechanism according to claim 3, characterized in that the moving assembly (1) further comprises a second moving body (12), the second moving body (12) being arranged opposite to the first moving body (11) and being interconnected, the adjusting part (2) further comprises a second adjusting body (22), a second throttling channel (220) being arranged on the second adjusting body (22), the second adjusting body (22) being arranged on the second moving body (12), the second moving body (12) being moved under the pressure of the medium in the main flow channel, the moving assembly further comprising:

-a second connection (14) provided on said second moving body (12), said second connection (14) being convex with respect to the surface of said second moving body (12), said second connection (14) being connected with said second adjustment body (22).

5. The adjustment mechanism according to claim 4, characterized in that a plurality of first splines (110) are arranged on the first moving body (11), the plurality of first splines (110) being arranged at intervals along an extension direction of the first moving body (11); a plurality of second tooth grooves (120) are arranged on the second moving body (12), the second tooth grooves (120) are arranged at intervals along the extending direction of the second moving body (12), and the moving assembly (1) further comprises:

the connecting gear (15) is respectively meshed with the first tooth groove (110) and the second tooth groove (120), and the second moving body (12) drives the first moving body (11) to move through the connecting gear (15) in the moving process.

6. The adjusting mechanism according to claim 4, wherein a limiting groove (111) is formed in the first moving body (11), the limiting groove (111) extends along a length direction of the first moving body (11), and at least a portion of the second moving body (12) is inserted into the limiting groove (111) and is in clearance fit with the limiting groove (111).

7. The adjusting mechanism according to claim 6, characterized in that the first moving body (11) comprises a first plate member (112) and a second plate member (113) which are connected with each other, an included angle is formed between the first plate member (112) and the second plate member (113), the limiting groove (111) is arranged on the bottom surface of the first plate member (112), and the first adjusting body (21) is connected with the first plate member (112);

the second moving body (12) comprises a third plate (121), a fourth plate (122) and a fifth plate (123) which are sequentially connected, the third plate (121) and the fifth plate (123) are oppositely arranged, at least part of the fifth plate (123) is inserted into the limiting groove (111), and the second adjusting body (22) is arranged on the third plate (121).

8. The adjustment mechanism according to claim 7, characterized in that the second moving body (12) further comprises a sixth plate (124), the sixth plate (124) being connected at an end of the third plate (121) remote from the fourth plate (122), the sixth plate (124) being located between the second plate (113) and the fourth plate (122); the adjustment mechanism further comprises:

and the elastic component (3) is arranged in a telescopic manner along the first direction, and two ends of the elastic component (3) are respectively connected with the second plate (113) and the sixth plate (124).

9. Compressor comprising a compressor body (100) and an adjustment mechanism (200), said adjustment mechanism (200) being provided on said compressor body (100), characterized in that said adjustment mechanism (200) is an adjustment mechanism (200) according to any one of claims 1 to 8.

10. The compressor of claim 9, further comprising:

a discharge chamber (101) provided on the compressor body (100);

a back pressure chamber (102) disposed on the compressor body (100);

the oil-gas passage (103) is arranged on the compressor body (100), two ends of the oil-gas passage (103) are respectively communicated with the exhaust cavity (101) and the back pressure cavity (102), and at least part of the adjusting mechanism (200) is arranged in the oil-gas passage (103).

11. The compressor of claim 10, wherein the adjusting mechanism (200) is the adjusting mechanism (200) of claim 4, the oil-air passage (103) comprises a main passage (1030) and a first branch passage (1031) which are communicated with each other, and one end of the first branch passage (1031) far away from the main passage (1030) is communicated with the back pressure chamber (102);

the first moving body (11) and the second moving body (12) are both arranged in the main passage (1030), the first adjustment body (21) being arranged in the first branch (1031).

12. The compressor of claim 11, further comprising a suction chamber (104), wherein the oil-gas passage (103) further comprises a second branch (1032), and both ends of the second branch (1032) are respectively communicated with the suction chamber (104) and the back pressure chamber (102);

the second adjustment body (22) is arranged in the second branch (1032).

13. The compressor of claim 12, further comprising:

the mounting bracket (300) is arranged on the side of a movable scroll (400) of the compressor, the back pressure cavity (102) is arranged between the mounting bracket (300) and the movable scroll (400), the mounting bracket (300) is provided with a mounting cavity (301) communicated with the oil-gas passage (103), and the first moving body (11) and the second moving body (12) are both arranged in the mounting cavity (301); pushing the second moving body (12) to move through the medium in the installation cavity (301);

the first branch (1031) and the second branch (1032) are both disposed within the mounting bracket (300).

14. The compressor of claim 13, wherein a communication passage (302) is further provided on the mounting bracket (300), the communication passage (302) being communicated with the first branch (1031) and the back pressure chamber (102), respectively;

an exhaust channel (303) is arranged on the mounting bracket (300), and the back pressure cavity (102) is communicated with the second branch (1032) through the exhaust channel (303).