CN114857006A - Adjusting mechanism and compressor with same - Google Patents
Adjusting mechanism and compressor with same Download PDFInfo
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- CN114857006A CN114857006A CN202210631092.8A CN202210631092A CN114857006A CN 114857006 A CN114857006 A CN 114857006A CN 202210631092 A CN202210631092 A CN 202210631092A CN 114857006 A CN114857006 A CN 114857006A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 63
- 230000000670 limiting effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a regulating mechanism and a compressor with the regulating mechanism, wherein at least part of the regulating mechanism is arranged in a medium flow channel, the medium flow channel comprises a main flow channel and a flow branch channel which are communicated with each other, and the regulating mechanism comprises: 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 invention solves the problem of low pump body stability caused by the fact that the back pressure in the compressor in the prior art can not be adjusted.
Description
Technical Field
The invention relates to the technical field of pressure regulation in compressors, in particular to a regulating mechanism and a compressor with the same.
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.
Disclosure of Invention
The invention mainly aims to provide an adjusting mechanism and a compressor with the same, and aims to solve the problem that the stability of a pump body is low due to the fact that the back pressure in the compressor in the prior art cannot be adjusted.
In order to achieve the above object, according to one aspect of the present invention, there is provided an adjustment mechanism, at least a part of which is for being disposed in a medium flow channel including a main flow channel and a flow branch channel communicating with each other, the adjustment 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 channels 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 of second removal 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, the first movable body is provided with a limiting groove, the limiting groove extends along the length direction of the first movable body, and at least part of the second movable body is inserted in 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 another aspect of the present invention, there is provided a compressor, comprising a compressor body and an adjusting mechanism, wherein the adjusting mechanism is disposed on the compressor body, and the adjusting mechanism is the above adjusting 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 is arranged on the compressor body, two ends of the oil gas passageway are respectively communicated with the exhaust cavity and the back pressure cavity, and at least part of the adjusting mechanism is arranged 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 back pressure cavity is communicated with the second branch through the discharge passage.
By applying the technical scheme of the invention, 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 flow branch channel, and the aim of adjusting the medium flow in the flow branch channel is achieved by the adjusting component in the process that the medium flows from the main flow channel to the flow branch channel, specifically, the moving component is movably arranged under the pressure action of the medium in the main flow channel, so that the flow in the flow branch channel 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 higher, the moving stroke of the moving component is increased, the moving stroke of the adjusting component is driven to be increased, when the pressure of the medium in the main flow channel is lower, the moving stroke of the moving component is smaller, the moving stroke of the adjusting component is driven to be smaller, and because the throttling channel is arranged on the surface of the adjusting component, 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 are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of an adjustment mechanism according to the present invention;
fig. 2 shows a schematic structural view of a first mobile body of the adjustment mechanism according to the invention;
fig. 3 shows a schematic structural view of a second mobile body of the adjustment mechanism according to the invention;
FIG. 4 shows a schematic structural view of an adjustment member of the adjustment mechanism according to the present invention;
FIG. 5 shows a schematic view of the connecting gear of the adjustment 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 adjustment mechanism in the compressor according to the invention;
fig. 8 is a schematic view showing a structure of a mounting bracket in a compressor according to the present invention;
fig. 9 is an exploded view showing the structure of a mounting bracket and a cover plate in a 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 passage; 21. a first adjustment body; 22. a second adjustment body; 3. an elastic member; 210. a first throttle passage; 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, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 5, the present invention provides an adjusting mechanism, at least a portion of which is configured to be disposed in a medium flow channel, the medium flow channel including a main flow channel and a flow branch channel that are communicated with each other, the adjusting mechanism including: 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-through branch.
The adjusting mechanism provided by the invention comprises a moving component 1 and an adjusting component 2, wherein the moving component 1 is arranged in a main flow channel, the adjusting component 2 is arranged in a flow branch channel, and when a medium flows into the flow branch channel from the main flow channel, the aim of adjusting the medium flow in the flow branch channel is achieved through the adjusting component 2, specifically, the moving component 1 is movably arranged under the pressure action of the medium in the main flow channel, so that the flow in the flow branch channel 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 higher, 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 lower, the moving stroke of the moving component 1 is smaller, the moving stroke of the adjusting component 2 is driven to be smaller, and because the throttling channel 20 is arranged on the surface of the adjusting component 2, the adjusting component 2 is attached to the inner wall surface of the circulation branch, so that the medium can only flow from the main flow channel to the inside of the circulation branch through the throttling channel 20, the matching stroke of the adjusting component 2 and the circulation branch is changed in the process that the adjusting component 2 moves along the extending direction of the circulation branch, when the adjusting component 2 is gradually drawn out from the inside of the circulation branch outwards, the contact area of the throttling channel 20 and the main flow channel is increased, the flow of the medium flowing from the main flow channel to the circulation branch is increased, and conversely, when the adjusting component 2 is gradually inserted into the circulation branch, the contact area of the throttling channel 20 and the main flow channel is reduced, the flow of the medium flowing from the main flow channel to the circulation branch is reduced, and therefore the pressure of the medium 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 pressure of the medium 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 a first embodiment of the adjustment member 2 according to the invention, the adjustment member 2 is cylindrical and the throttle channel 20 is arranged on the adjustment member 2 along a helical trajectory.
In a second embodiment of the adjustment member 2 according to the invention, the adjustment member 2 is prism-shaped, and one or more throttle channels 20 are provided on each side of the adjustment member 2, the throttle channels 20 extending along an S-shaped trajectory.
In the embodiment provided by the present invention, as shown in fig. 1 and 2, the moving assembly 1 includes a first moving body 11, the adjusting member 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 to 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 engaged with the first tooth groove 110 and the second tooth groove 120 respectively, 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 the connecting gear 15 is arranged in the main flow channel through a gear connecting shaft 16, and the connecting gear 15 rotates around the 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 of 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 provided on a 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 movable 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 movable body 12 to return to the initial position, and meanwhile, under the action of the connecting gear 15, the second movable body 12 drives the first movable 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 movable scroll 400 and fixed scroll 600 card to die, or the pressure in back pressure chamber 102 is undersized, cause movable scroll 400 to move towards the direction of keeping away from fixed scroll 600, cause the interior medium of compression chamber to reveal, utilize adjustment mechanism 200, can flow into the pressure of the interior medium of oil gas passageway 103 automatically regulated throttle to the pressure in back pressure chamber 102 according to exhaust chamber 101, 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. Thus, the pressure of the medium flowing into the main passage 1030 causes the first adjustment body 21 to move in the first branch 1031, thereby adjusting 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 adjusting body 22 is driven to be gradually drawn out from the second branch 1032 along with the movement of the second moving body 12, the throttling effect of the medium in the back pressure cavity 102 passing through the second branch 1032 becomes weak, the pressure is conveniently released, the pressure accumulated in the back pressure cavity 102 at this time flows back to the air suction cavity 104 along the second throttling channel 220 on the second adjusting body 22, the pressure release is completed, and therefore the power 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 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 working characteristics of the refrigerant, when the compressor is continuously operated, the high-pressure gas can change along with the change of the working condition, and the span is very large.
If the working condition of the compressor is the ultra-high pressure working condition, the ultra-high 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 upwards (in the direction approaching the housing 700 in fig. 6), the elastic component 3 is compressed, the connecting gear 15 is engaged with the first tooth groove 110 and the second tooth groove 120, respectively, the second moving body 12 drives the connecting gear 15 to rotate counterclockwise, at this time, the first moving body 11 moves downwards, and drives the first adjusting body 21 to move downwards, the volume of the first adjusting body 21 in the first branch 1031 becomes small, the throttling effect of the high pressure gas passing through the first throttling passage 210 becomes weak, that is, the pressure drop of the ultra-high pressure gas passing through the first throttling passage 210 becomes small, the pressure becomes higher, and the gas continues to flow along the first branch 1031 into the communicating passage 302 on the connecting end face of the mounting bracket 300 after throttling, then, the gas continuously flows into the backpressure cavity 102, the gas entering the backpressure cavity 102 after dynamic pressurization directly acts on the movable scroll 400, the movable scroll 400 is pushed to be close to the fixed scroll 600, the condition that the pump body leaks under the ultrahigh pressure working condition due to huge axial force between the pump bodies is prevented, the pump bodies are guaranteed to be attached to the greatest extent under the premise of stable operation, and the effect of improving the volumetric efficiency and the compression efficiency of the compressor is achieved.
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 second removes the pressure that body 12 receives less, under elastomeric element 3's effect, connecting gear 15 clockwise rotates, make first regulation body 21 rebound, first regulation body 21 inserts gradually in first branch 1031, the throttle effect increases, through the gaseous pressure drop grow in first branch 1031, pressure diminishes, the gas that drops through the developments flows to backpressure chamber 102 along communicating channel 302, give a less thrust of moving vortex dish 400, in order to prevent the pump body under the ordinary operating mode because the backpressure too big and the dead condition of card, 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 backpressure under this operating mode.
In conclusion, no matter what working condition the scroll compressor operates, and no matter how the pressure changes, the adjusting mechanism provided by the invention can be used for dynamically adjusting the back pressure, so that the requirement of stable operation of the pump body is met, the compressor can stably operate under various conditions and working conditions, and the compression efficiency and the volumetric efficiency of the scroll compressor are further improved.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the adjusting mechanism provided by the invention comprises a moving component 1 and an adjusting component 2, wherein the moving component 1 is arranged in a main flow channel, the adjusting component 2 is arranged in a flow branch channel, and when a medium flows into the flow branch channel from the main flow channel, the aim of adjusting the medium flow in the flow branch channel is achieved through the adjusting component 2, specifically, the moving component 1 is movably arranged under the pressure action of the medium in the main flow channel, so that the flow in the flow branch channel 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 higher, 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 lower, the moving stroke of the moving component 1 is smaller, the moving stroke of the adjusting component 2 is driven to be smaller, and because the throttling channel 20 is arranged on the surface of the adjusting component 2, the adjusting component 2 is attached to the inner wall surface of the circulation branch, so that the medium can only flow from the main flow channel to the circulation branch through the throttling channel 20, when the adjusting component 2 moves along the extending direction of the circulation branch, the matching stroke of the adjusting component 2 and the circulation branch is changed, when the adjusting component 2 is gradually drawn out from the circulation branch, the contact area of the throttling channel 20 and the main flow channel is increased, the flow of the medium from the main flow channel to the circulation branch is increased, conversely, when the adjusting component 2 is gradually inserted into the circulation branch, the contact area of the throttling channel 20 and the main flow channel is reduced, the flow of the medium from the main flow channel to the circulation branch is reduced, and thus, 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 (14)
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 in the main flow channel, the moving assembly (1) being movably arranged under the pressure of a medium in the main flow channel;
the adjusting device comprises an adjusting component (2), at least part of the adjusting component (2) is 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 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 piece (13) arranged on the first moving body (11), the first connecting piece (13) protruding relative to the surface of the first moving body (11), the first connecting piece (13) being connected with the 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) arranged on the second moving body (12), the second connection (14) protruding with respect to a surface of the second moving body (12), the second connection (14) being connected with the second adjustment body (22).
5. The adjustment mechanism according to claim 4, characterized in that a plurality of first tooth grooves (110) are provided on the first moving body (11), the plurality of first tooth grooves (110) being arranged at intervals along the extension direction of the first moving body (11); the second moving body (12) is provided with a plurality of second tooth grooves (120), 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 meshed with the first tooth groove (110) and the second tooth groove (120) respectively, 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, characterized in that 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 a part 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-gas 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); the second moving body (12) is pushed to move by 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. Compressor according to claim 13, characterized in that the mounting bracket (300) is further provided with a communication channel (302), the communication channel (302) being in communication 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210631092.8A CN114857006A (en) | 2022-06-06 | 2022-06-06 | Adjusting mechanism and compressor with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210631092.8A CN114857006A (en) | 2022-06-06 | 2022-06-06 | Adjusting mechanism and compressor with same |
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| CN114857006A true CN114857006A (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210631092.8A Pending CN114857006A (en) | 2022-06-06 | 2022-06-06 | Adjusting mechanism and compressor with same |
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Citations (6)
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|---|---|---|---|---|
| JP2010043598A (en) * | 2008-08-12 | 2010-02-25 | Sanden Corp | Scroll type fluid machine |
| JP2010156348A (en) * | 2010-04-12 | 2010-07-15 | Mitsubishi Heavy Ind Ltd | Scroll compressor |
| CN102667061A (en) * | 2009-10-14 | 2012-09-12 | 克雷格·N·海山 | Internal combustion engine and supercharger |
| CN212898917U (en) * | 2020-08-25 | 2021-04-06 | 珠海凌达压缩机有限公司 | Scroll compressor and air conditioner |
| CN114263605A (en) * | 2022-01-20 | 2022-04-01 | 华域三电汽车空调有限公司 | Compressor, and pre-adjusting system and pre-adjusting method of compressor |
| CN217976603U (en) * | 2022-06-06 | 2022-12-06 | 珠海格力电器股份有限公司 | Adjusting mechanism and compressor with same |
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2022
- 2022-06-06 CN CN202210631092.8A patent/CN114857006A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010043598A (en) * | 2008-08-12 | 2010-02-25 | Sanden Corp | Scroll type fluid machine |
| CN102667061A (en) * | 2009-10-14 | 2012-09-12 | 克雷格·N·海山 | Internal combustion engine and supercharger |
| JP2010156348A (en) * | 2010-04-12 | 2010-07-15 | Mitsubishi Heavy Ind Ltd | Scroll compressor |
| CN212898917U (en) * | 2020-08-25 | 2021-04-06 | 珠海凌达压缩机有限公司 | Scroll compressor and air conditioner |
| CN114263605A (en) * | 2022-01-20 | 2022-04-01 | 华域三电汽车空调有限公司 | Compressor, and pre-adjusting system and pre-adjusting method of compressor |
| CN217976603U (en) * | 2022-06-06 | 2022-12-06 | 珠海格力电器股份有限公司 | Adjusting mechanism and compressor with same |
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