CN218325266U

CN218325266U - Pump body assembly, compressor and air conditioner with same

Info

Publication number: CN218325266U
Application number: CN202222499309.2U
Authority: CN
Inventors: 郑坚标; 邓鸿阳; 郑金涛
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-17
Anticipated expiration: 2032-09-21

Abstract

The application provides a pump body assembly, a compressor and an air conditioner with the same, and the air conditioner comprises a compression structure and a force application structure, wherein the compression structure comprises a static vortex disk and a movable vortex disk which are meshed with each other; the force application structure applies pre-tightening force in a first direction to the movable scroll; the first direction is opposite to the rotation direction of the movable scroll. According to the pump body subassembly, compressor and have its air conditioner of this application, can make quiet scroll radial action clearance more stable, compressor operation volumetric efficiency is high under the full frequency channel.

Description

Pump body assembly, compressor and air conditioner with same

Technical Field

The application belongs to the technical field of air conditioners, and particularly relates to a pump body assembly, a compressor and an air conditioner with the pump body assembly and the compressor.

Background

At present, the scroll compressor is widely applied to the vehicle compressor due to the low leakage rate in the pump body, and in order to keep the low leakage rate in the pump body, the prior circling pin type scroll compressor generally introduces an eccentric sleeve mechanism with an eccentric mass block to carry out radial compensation on the eccentricity of the pump body.

However, the eccentric torque of the eccentric mass block in the operation process is used by the eccentric sleeve mechanism to provide radial compensation torque for the movable scroll, when the compressor operates at low speed, the compensation torque is smaller, the radial leakage of the compressor is still larger, and the low-frequency operation volumetric efficiency of the compressor is low.

Therefore, how to provide a pump body assembly which can make the radial action gap of the movable and static scroll more stable and has high operation volumetric efficiency of the compressor under the full frequency band, the compressor and the air conditioner with the compressor become the problems which need to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem that this application will be solved lies in providing a pump body subassembly, compressor and have its air conditioner, can make quiet scroll radial action clearance more stable, and the compressor operation cubage is efficient under the full frequency channel.

In order to solve the above problem, the present application provides a pump body assembly including:

the compression structure comprises a static vortex disc and a movable vortex disc which are meshed with each other;

the force application structure applies pre-tightening force in a first direction to the movable scroll; the first direction is opposite to the rotation direction of the movable scroll.

Furthermore, the pump body assembly also comprises a crankshaft, wherein the crankshaft comprises an eccentric shaft, and the eccentric shaft can drive the movable scroll disk to rotate; the force application structure is arranged on the crankshaft.

Furthermore, the pump body assembly also comprises an eccentric sleeve, the eccentric sleeve is rotatably sleeved on the eccentric shaft, and the eccentric sleeve is connected with the movable scroll disc; the force application structure applies pre-tightening force in the first direction to the eccentric sleeve, and then applies pre-tightening force in the first direction to the movable scroll disk.

Further, the force application structure comprises an elastic structure, and the elastic structure is connected with the crankshaft and the eccentric sleeve.

Furthermore, the elastic structure comprises a spring structure, the spring structure is sleeved on the eccentric shaft, and the spring structure is positioned in the eccentric sleeve; and one end of the spring structure is connected with the eccentric shaft, and the other end of the spring structure is connected with the eccentric sleeve.

Furthermore, the end part of the eccentric shaft is provided with a mounting groove; the first end of the spring structure is fixed through the mounting groove;

and/or, the eccentric sleeve comprises an annular structure, one end of the annular structure is provided with an end structure, the end structure is provided with a mounting hole, and the second end of the spring structure is fixed through the mounting hole.

Further, an installation surface facing the direction of the compression structure is arranged on the eccentric shaft, and the spring structure is installed on the installation surface.

Further, the number of the spring structures is set to be at least one; when the number of the spring structures is set to be two or more, the two or more spring structures are arranged in order in the axial direction of the eccentric shaft.

Further, the spring structure includes a linear spring; alternatively, the spring structure comprises a leaf-type annular spring, and the leaf-type annular spring is formed by rolling the leaf-type annular spring.

According to still another aspect of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.

According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.

The application provides a pump body subassembly, compressor and have its air conditioner, this application can make quiet scroll radial action clearance more stable, and compressor operation volumetric efficiency is high under the full frequency channel.

Drawings

FIG. 1 is a schematic structural view of a pump block assembly according to a first embodiment of the present application;

FIG. 2 is a schematic view of the mounting structure of the pump block assembly according to the first embodiment of the present application;

FIG. 3 is a schematic structural view of a pump block assembly according to a first embodiment of the present application;

FIG. 4 is a schematic structural diagram of an eccentric sleeve according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a pump block assembly according to a second embodiment of the present application;

FIG. 6 is a schematic view of the mounting structure of the pump body assembly according to the second embodiment of the present application;

FIG. 7 is a schematic structural view of a pump block assembly according to a second embodiment of the present application;

FIG. 8 is a schematic structural diagram of a force application structure according to a second embodiment of the present application;

FIG. 9 is a schematic structural view of a pump block assembly according to a third embodiment of the present application;

FIG. 10 is a schematic view of the mounting structure of the pump block assembly according to the third embodiment of the present application;

FIG. 11 is a schematic view of the mounting arrangement between the force application structure and the eccentric shaft of the third embodiment of the present application;

fig. 12 is a schematic structural view of a pump body assembly of the related art.

The reference numerals are represented as:

1. a compression structure; 2. a force application structure; 21. an anti-twist portion; 22. an extension portion; 3. a crankshaft; 31. an eccentric shaft; 32. mounting grooves; 33. a mounting surface; 34. an installation section; 35. a body section; 4. an eccentric sleeve; 41. an installation port; 5. a support; 51. an accommodating chamber; 52. the support bearing portion.

Detailed Description

With combined reference to fig. 1-12, the embodiment of the application discloses a pump body assembly, which comprises a compression structure 1 and a force application structure 2, wherein the compression structure 1 comprises a fixed scroll and a movable scroll which are engaged with each other; the force application structure 2 applies pre-tightening force in a first direction to the movable scroll; the first direction is opposite to the rotation direction of the movable scroll. The pretightening force in the application can keep the radial clearance of the movable and static scrolls at the optimal compression position; the weight and the volume of the rotating mechanism are reduced, the non-compression power consumption during operation is reduced, and the operation efficiency of the pre-compressor is improved. The pretightening force refers to the pretightening force existing no matter the movable scroll disk moves to any position, so that sufficient radial compensation torque can be still provided when the compressor runs at a low speed, and the leakage rate in the pump body is reduced. Pre-tightening force is preset on the movable disc during installation; after the installation is finished, no matter whether the compressor runs or not, the movable disc is subjected to pulling pretightening force.

The application also discloses some embodiments, the pump body assembly further comprises a crankshaft 3, the crankshaft 3 comprises an eccentric shaft 31, and the eccentric shaft 31 can drive the movable scroll to rotate; the biasing structure 2 is provided on the crankshaft 3. The force application structure 2 is arranged on the crankshaft 3, and the force application structure 2 directly applies pretightening force in a first direction to the scroll disk, so that the radial compensation of the eccentricity of the pump body during the low-speed operation of the compressor can be realized, and the optimal radial gap during the operation of the pump body is kept; the weight and the volume of the rotating mechanism are reduced, and the overall efficiency of the compressor is improved.

The application also discloses some embodiments, the pump body assembly further comprises an eccentric sleeve 4, the eccentric sleeve 4 is rotatably sleeved on the eccentric shaft 31, and the eccentric sleeve 4 is connected with the movable scroll; the force application structure 2 applies pretightening force in the first direction to the eccentric sleeve 4, and then applies pretightening force in the first direction to the movable scroll disk. The eccentric sleeve 4 is sleeved at one end of the eccentric shaft 31 close to the compression structure 1. The eccentric sleeve 4 is only a sleeve and does not comprise an eccentric mass.

As can be known from fig. 12, in the related art, the eccentric mass block is added to the eccentric sleeve 4 adopted by the scroll compressor, and the eccentric radial compensation mechanism, the eccentric sleeve 4 includes a bearing portion, that is, a sleeve and an eccentric mass block, and the introduction of the eccentric mass block can offset the radial gas force between the dynamic and static scrolls during the operation of the compressor to a certain extent, thereby realizing the stable attachment of the dynamic and static scrolls during the operation process and reducing the radial leakage; however, when the compressor runs at a low speed, because the eccentric mass block cannot provide sufficient compensation torque, the radial clearance of the dynamic and static scrolls is large, and the efficiency cannot be effectively improved; the eccentric mass block is arranged on the rotating mechanism and periodically rotates along with the operation of the rotating mechanism, so that the power of the compressor is increased when the compressor is not operated, and the energy efficiency of the compressor is reduced; and the eccentric mass block is installed inside the eccentric block accommodating cavity 51 of the bracket 5, occupying a certain volume of the compressor cavity, the bracket 5 is also provided with a bracket bearing part 52, as shown in fig. 12, the eccentric mass block scheme is adopted, the height of the accommodating cavity 51 is H, which is large, and the appearance and the weight of the compressor are increased.

In the application, referring to the attached drawing 1, an eccentric mass block is omitted, so that the scroll compressor can still provide sufficient radial compensation torque even when the scroll compressor operates at a low speed, the radial action gap of the movable and static scrolls is more stable, and the compressor operation volume efficiency under the full frequency band is high; and because the pretightening force can realize the radial compensation of the moving and static scrolls of the scroll compressor, the height of the accommodating cavity 51 is H ' (caused by the elimination of the eccentric mass block 62), and in combination with the graph of fig. 1 and 12, the height H ' of the accommodating cavity 51 is only 1/2 of the height H ' of the original scheme H, so that the internal volume of the eccentric block accommodating cavity 51 of the bracket 5 is reduced, the weight of the rotating mechanism is effectively reduced, the non-compression power of the whole machine is reduced, and the overall dimension and the weight of the whole machine are reduced.

This application only adopts the pretightning force to carry out the radial compensation of eccentric volume through eliminating eccentric mass piece, and solves the problem that the compressor complete machine weight and the volume increase that eccentric mass piece leads to.

The application also discloses some embodiments, and application of force structure 2 includes elastic construction, and elastic construction connects bent axle 3 and eccentric bushing 4. The elastic force forms a pre-tightening force.

The application also discloses some embodiments, the elastic structure comprises a spring structure, the spring structure is sleeved on the eccentric shaft 31, and the spring structure is positioned inside the eccentric sleeve 4; and one end of the spring structure is connected with the eccentric shaft 31 and the other end of the spring structure is connected with the eccentric sleeve 4. The fixing mode has simple structure. When the spring is installed, the spring can have pretightening force on the movable disc; after the installation is finished, the spring has a pulling pretightening force on the movable disc no matter whether the compressor is operated or not.

The pre-tightening torque acts in the anticlockwise direction, the pre-tightening torque is transmitted to the movable scroll through the movable scroll bearing, the movable scroll generates a certain twisting trend, the movable scroll molded line is tightly attached to the static scroll molded line, and in the running process of the compressor, due to the pre-tightening torque, the radial clearance of the movable scroll and the static scroll is always kept in the optimal state, and the radial leakage is reduced. The abnormal working condition that appears in the compressor operation in-process is undulant, perhaps when the pump body appears liquid hit, granule impurity, effort is greater than the torsion spring pretightning force this moment, moves vortex disk accessible self clockwise rotation, can effectively avoid unusual working condition load, liquid hit, the damage of the sound vortex disk molded lines that brings after granule impurity breathes in, simultaneously because this mechanism volume, weight have reduction by a relatively large margin than conventional scheme, can eliminate the power consumption that eccentric mass block introduced, can further increase the moment of action area of preaction, further promote eccentric cover 4 operating stability.

The application also discloses some embodiments, the end part of the eccentric shaft 31 is provided with a mounting groove 32; the first end of the spring structure is fixed by the mounting groove 32; the first end of the spring structure has an anti-twist portion 21 and the second end has an extension portion 22; the anti-twist part 21 is clamped in the mounting groove 32, and the mounting groove 32 is a strip-shaped groove formed in the end face of the eccentric shaft 31; both ends in this bar groove all run through this eccentric shaft 31, and the first end card of spring structure is in this bar inslot, and spring structure overlaps outside eccentric shaft 31, and spring structure's second end is connected with eccentric cover 4. One end of the pre-acting spring is fixed on the mounting groove 32 through the anti-twisting part 21, the other end of the pre-acting spring is fixed on a pre-acting hole, namely a mounting hole 41, formed in the eccentric sleeve 4 through the tail extension part 22, the spring structure is sleeved on the eccentric shaft 31 of the crankshaft 3, a movable scroll disc bearing is mounted on the outer circle part of the eccentric sleeve 4 and fixed on the movable scroll disc, and a certain twisting pre-tightening force is formed after the spring is mounted, namely the pre-tightening force. The spring structure is an annular structure, such as a common linear helical spring, and the leaf spring, i.e., a spring sheet, which is coiled into an annular structure, is an annular structure, and can be sleeved on the eccentric shaft 31 of the crankshaft 3.

Referring to fig. 4 in combination, the present application also discloses some embodiments, the eccentric sleeve 4 includes an annular structure, one end of the annular structure is provided with an end structure, the end structure is provided with a mounting opening 41, and a second end of the spring structure is fixed through the mounting opening 41. The annular structure is a sleeve, one end of the sleeve is provided with an end structure, the other end of the sleeve is provided with an opening, namely, the whole structure of the eccentric sleeve 4 is similar to a cover body, and the top of the cover body is provided with the mounting opening 41. A circular hole is formed at the top of the cover body, and the mounting opening 41 extends outwards in a linear manner from the circular hole.

The application also discloses embodiments, wherein the eccentric shaft 31 is provided with a mounting surface 33 facing the compression structure 1, and the spring structure is mounted on the mounting surface 33. Referring to fig. 2, a step is formed at the eccentric shaft 31 of the compressor crankshaft 3, the step surface forms the mounting surface 33, and a pre-acting mounting groove 32 is formed at the top of the step. The eccentric shaft 31 includes a mounting section 34 and a body section 35 arranged in this order in a direction away from the compression structure 1, the mounting section 34 having a diameter smaller than that of the body section 35, and the step face is formed at a connecting position of the mounting section 34 and the body section 35.

9-11, the present application further discloses embodiments wherein the number of spring structures is provided as at least one; when the number of the spring structures is set to two or more, the two or more spring structures are arranged in order in the axial direction of the eccentric shaft 31. That is, in the third embodiment of the present application, when the number of the spring structures is at least two or more, the eccentric portion of the crankshaft 3 may not be provided with a step, the two or more spring structures are sequentially sleeved on the eccentric shaft 31, and at this time, the top of the eccentric shaft 31 is provided with the mounting groove 32, the first end of one spring closest to the orbiting scroll is fixed by the mounting groove 32, and the second end is fixed by the mounting hole 41 of the eccentric sleeve 4. Through the upper and lower both ends do not eccentric 4 internal fixation pretensions respectively, can further increase the spring pre-action point, promote 4 operating stability of eccentric cover, prevent 4 axial inclinations of eccentric cover.

The present application also discloses embodiments in which the spring structure includes a linear spring; referring to fig. 1-3, the linear spring is formed by bending a linear structure, one end of the spring is fixed on the mounting groove 32 through torsion prevention, the other end of the spring is fixed on a mounting hole, namely a mounting opening 41, arranged on the eccentric sleeve 4 through the tail extension part 22, the middle acting part of the spring is sleeved on the eccentric shaft 31 of the crankshaft 3, a movable scroll disc bearing is arranged on the outer circle part of the eccentric sleeve 4 and fixed on the movable scroll disc, and a certain torsion pre-tightening force, namely the pre-tightening force, is arranged after the spring is mounted.

The application also discloses embodiments in which the spring structure includes a leaf-type ring spring that is rolled to form the leaf-type ring spring. I.e. the sheet-like structure is curled into at least one layer; the whole cover is established on installation section 34, and the one end of spring is fixed on mounting groove 32 through preventing twising reverse, and the other end passes through afterbody extension 22 to be fixed on the pre-action hole that eccentric cover 4 was seted up is installing mouth 41 promptly, and the suit of spring middle-acting portion is on 3 eccentric shafts 31 of bent axle, moves the whirlpool dish bearing in the installation of 4 excircle portions of eccentric cover, moves the whirlpool dish bearing and fixes on moving the whirlpool dish, has certain torsion pretightning force after the spring mounting to be the pretightning force that this application was said promptly. Because the spring structure is a linear or sheet annular spring, both the linear or sheet annular spring and the annular spring extend in the circumferential direction, the circumferential pre-tightening force can be effectively provided for the movable scroll disk.

According to an embodiment of the present application, there is provided a compressor, including a pump body assembly, the pump body assembly being the above pump body assembly.

According to an embodiment of the application, an air conditioner is provided, and comprises a compressor, wherein the compressor is the compressor.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A pump body assembly, comprising:

a compression structure (1), the compression structure (1) comprising a stationary scroll and an orbiting scroll which are engaged with each other;

the force application structure (2) applies pre-tightening force in a first direction to the movable scroll disc; the first direction is opposite to a rotation direction of the orbiting scroll.

2. The pump-body assembly according to claim 1, characterized in that it further comprises a crankshaft (3), said crankshaft (3) comprising an eccentric shaft (31), said eccentric shaft (31) being able to bring about the rotation of said orbiting scroll; the force application structure (2) is arranged on the crankshaft (3).

3. The pump body assembly according to claim 2, further comprising an eccentric sleeve (4), wherein the eccentric sleeve (4) is rotatably sleeved on the eccentric shaft (31), and the eccentric sleeve (4) is connected with the orbiting scroll; the force application structure (2) applies pretightening force in a first direction to the eccentric sleeve (4) so as to apply pretightening force in the first direction to the movable scroll disk.

4. A pump block assembly according to claim 3, characterized in that the force application structure (2) comprises an elastic structure connecting the crankshaft (3) and the eccentric sleeve (4).

5. The pump block assembly according to claim 4, characterized in that said elastic structure comprises a spring structure, which is fitted over said eccentric shaft (31) and is located inside said eccentric sleeve (4); and one end of the spring structure is connected with the eccentric shaft (31), and the other end of the spring structure is connected with the eccentric sleeve (4).

6. The pump block assembly according to claim 5, characterized in that the end of the eccentric shaft (31) is provided with a mounting groove (32); the first end of the spring structure is fixed through the mounting groove (32);

and/or, the eccentric sleeve (4) comprises an annular structure, one end of the annular structure is provided with an end structure, the end structure is provided with a mounting hole (41), and the second end of the spring structure is fixed through the mounting hole (41).

7. A pump block assembly according to claim 5, characterized in that the eccentric shaft (31) is provided with a mounting surface (33) directed towards the compression structure (1), the spring structure being mounted on the mounting surface (33).

8. The pump body assembly of claim 5, wherein the number of spring structures is provided as at least one; when the number of the spring structures is set to two or more, the two or more spring structures are arranged in order in the axial direction of the eccentric shaft (31).

9. The pump body assembly of claim 5, wherein the spring structure comprises a linear spring; alternatively, the spring structure includes a leaf-type ring spring, which is formed by rolling the leaf-type ring spring.

10. A compressor comprising a pump block assembly, characterized in that it is a pump block assembly according to any one of claims 1 to 9.

11. An air conditioner comprising a compressor, wherein said compressor is as recited in claim 10.