CN218376894U

CN218376894U - Novel exhaust valve structure for compressor

Info

Publication number: CN218376894U
Application number: CN202222772665.7U
Authority: CN
Inventors: 罗元硕; 詹宏宏; 邱望
Original assignee: Hunan Tpys Compressor Technology Co ltd
Current assignee: Hunan Tpys Compressor Technology Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-24
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a novel exhaust valve structure for a compressor, which comprises an upper cover and a fixed scroll disk which is assembled and connected with the upper cover, wherein a positioning component is arranged inside the upper cover, and an exhaust valve component is assembled on the upper cover through the positioning component; the exhaust valve assembly comprises a valve ball and an elastic piece, the elastic piece is fixedly arranged on the positioning assembly, and the valve ball is arranged at the end part of the elastic piece far away from the positioning assembly, so that the valve ball blocks an exhaust port on the fixed scroll disc under the action of the elastic piece in a natural state; and a guide oblique angle is arranged at the contact part of the exhaust port and the valve ball. The utility model provides a plane shape discharge valve piece lead to cracked problem at the uneven atress of pendulum in-process that shakes to can reduce the noise that the discharge valve piece produced because of mechanical shock.

Description

Novel exhaust valve structure for compressor

Technical Field

The utility model relates to a scroll compressor technical field, concretely relates to novel discharge valve structure for compressor.

Background

Most scroll compressors in the market at present adopt a planar exhaust valve plate structure, the exhaust valve plate is installed between an exhaust outlet and an end cover of a fixed scroll, and the exhaust valve plate is used for limiting, when the exhaust valve plate structure operates at a high rotating speed of the compressor, the intermittent exhaust frequency can be accelerated, the exhaust valve plate can also generate synchronous high-frequency vibration, the planar valve plate is often uneven in stress in the vibration process, the phenomenon of fracture is caused, the service life of the exhaust valve plate is shortened, the fault of the compressor is easily caused, the exhaust valve plate frequently impacts the exhaust valve plate, the mechanical impact noise is easily generated, and the NVH performance of the compressor is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective aims at solving the technical problem that the above-mentioned exists to a certain extent, provides a novel discharge valve structure for compressor, has solved planar discharge valve piece and has leaded to cracked problem at the uneven atress of pendulum in-process that shakes to can reduce the noise that the discharge valve piece produced because of mechanical shock.

The utility model discloses the above-mentioned problem that will solve is through following technical scheme in order to realize:

the novel exhaust valve structure for the compressor comprises an upper cover and a fixed scroll disk which is assembled and connected with the upper cover, wherein a positioning assembly is arranged in the upper cover, and an exhaust valve assembly is assembled on the upper cover through the positioning assembly; the exhaust valve assembly comprises a valve ball and an elastic piece, the elastic piece is fixedly arranged on the positioning assembly, and the valve ball is arranged at the end part of the elastic piece far away from the positioning assembly, so that the valve ball blocks an exhaust port on the fixed scroll under the action of the elastic piece in a natural state; and a guide oblique angle is arranged at the contact part of the exhaust port and the valve ball.

In one embodiment, the valve ball is of unitary construction with the resilient member.

In one embodiment, the positioning assembly comprises a positioning column, the positioning column is arranged on the inner bottom surface of the upper cover and extends towards the direction of the fixed scroll, and the elastic piece is fixedly arranged on the positioning column.

In one embodiment, the elastic element is sleeved on the positioning column and is in interference fit connection with the positioning column.

In one embodiment, the positioning column is inserted to a position half of the overall height of the elastic member.

In one embodiment, the positioning column is integrally formed with the upper cover.

In one embodiment, the upper cover is further provided with a guide assembly, the valve ball is provided with a sleeve block, two sides of the sleeve block extend outwards to protrude out of the valve ball, and the guide assembly is connected with the protruding part of the sleeve block so that the valve ball is guided by the sleeve block when moving up and down.

In one embodiment, the guide assembly comprises a fixed seat and a guide rod, the fixed seat is fixedly arranged on the bottom surface of the inner part of the upper cover around the positioning assembly, one end of the guide rod is fixedly arranged on the fixed seat, and the other end of the guide rod penetrates through the sleeve block.

Compared with the prior art, the technical scheme provided by the application has the following advantages:

in the exhaust valve structure, a valve ball is firstly assembled on an elastic part, then the elastic part is assembled on a positioning component of an upper cover, the valve ball seals and blocks an exhaust port of a fixed scroll disk under the deformation force of the elastic part in a natural state, when the exhaust port of the fixed scroll disk exhausts, the valve ball is impacted by high-pressure gas to loosen the exhaust port of the fixed scroll disk and upwards extrude the elastic part, so that the exhaust effect is achieved, and after the exhaust is finished, the valve ball is acted by the elastic part to seal and block the exhaust port again; the valve ball of the exhaust valve structure is uniformly stressed, the problem that the plane-shaped exhaust valve block is broken due to uneven stress in the vibration process is solved, the impact of high-frequency vibration is avoided, the noise generated by the exhaust valve block due to mechanical impact is effectively reduced, and the damage of components is reduced.

Further be equipped with the direction subassembly at the upper cover, be provided with the cover piece of being connected with the direction subassembly on the valve ball, when the valve ball receives high-pressure gas to strike to shift up or receive the elastic component effect to reset, the cover piece can be followed the direction subassembly and removed to play the guide effect to the valve ball, avoid the valve ball to rock, guarantee that valve ball reciprocates with the axle center with the gas vent, improve the leakproofness of valve ball.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a structural view of a compressor discharge valve according to the present invention.

Fig. 2 is a structural view of the compressor discharge valve of the present invention.

Fig. 3 is a structural view of the compressor discharge valve of the present invention.

Fig. 4 is a structural view of the compressor discharge valve of the present invention.

The reference numbers illustrate:

1, covering the cover; 2-fixed scroll pan; 3-a valve ball; 4-a spring; 5-a positioning column; 6-a nest block; 7-a fixed seat; 8-guide rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a novel exhaust valve structure for compressor, comprising an upper cover 1 and a fixed scroll disk 2 assembled with the upper cover 1, wherein a positioning component is arranged inside the upper cover 1, and an exhaust valve component is assembled on the upper cover 1 through the positioning component; the exhaust valve assembly comprises a valve ball 3 and a spring 4, the spring 4 is fixedly arranged on the positioning assembly, the valve ball 3 is arranged at the end part of the spring 4 far away from the positioning assembly, so that the valve ball 3 blocks an exhaust port on the fixed scroll 2 under the action of the spring 4 in a natural state; and a guide oblique angle is arranged at the contact part of the exhaust port and the valve ball 3.

In the exhaust valve structure of the embodiment, the valve ball 3 is assembled on the spring 4 firstly, and then the spring 4 is assembled on the positioning assembly of the upper cover 1, the valve ball 3 is sealed and blocked on the exhaust port of the fixed scroll 2 under the deformation force of the spring 4 in a natural state, when the exhaust port of the fixed scroll 2 exhausts, the valve ball 3 is impacted by high-pressure gas to loosen the exhaust port of the fixed scroll 2 and extrude the spring 4 upwards, so that the exhaust effect is achieved, after the exhaust is finished, the valve ball 3 is sealed and blocked again under the action of the spring 4, and the guide oblique angle arranged at the exhaust port can facilitate the valve ball 3 to block the exhaust port, the surface of the valve ball 3 can be completely attached to the exhaust port, the leakage caused by defects in the processing process is avoided, and the sealing performance is improved.

The valve ball 3 can be uniformly stressed by the structure, the problem of fracture caused by uneven stress of the planar exhaust valve plate in the oscillating process is solved, and the impact of high-frequency oscillation is avoided, so that the noise generated by mechanical impact of the exhaust valve plate is effectively reduced, and the damage of components is reduced; the exhaust valve is simple in structure and low in manufacturing cost, the valve ball 3 can effectively fill the clearance volume of the exhaust valve seat space of the compressor, gas in a compression gap is discharged to the maximum extent, the gas in the gap is prevented from being compressed again, and the energy efficiency of the compressor is improved.

It should be noted that, in the present embodiment, the weight of the valve ball 3 and the stiffness of the spring 4 can meet the required working requirement, that is, the valve ball 3 can release the exhaust port when being impacted by high-pressure gas, and the acting force generated by the spring 4 can also make the valve ball 3 seal and block the exhaust port in a natural state, so that the weight of the valve ball 3 and the stiffness of the spring 4 can be selected according to the practical application.

Further, the valve ball 3 is integrated with the spring 4.

The ball 3 and the spring 4 are welded or fixedly assembled and connected in the embodiment, and the purpose is to ensure the stability of the assembly between the ball 3 and the spring 4, so that the force of the ball 3 acting on the spring 4 is more uniform.

In another embodiment, the positioning assembly includes a positioning column 5, the positioning column 5 is integrally formed with the upper cover 1, the positioning column 5 is disposed on the inner bottom surface of the upper cover 1 and extends toward the fixed scroll 2, and the spring 4 is fixedly disposed on the positioning column 5.

In this embodiment, spring 4 cover is established on reference column 5 to be connected with reference column 5 interference fit, establish behind reference column 5 at spring 4 cover simultaneously, pass spring 4 and be equipped with the bolt on reference column 5, improve the stability of spring 4 on reference column 5 through the bolt.

It should be noted that the spring 4 can also be tightly assembled on the positioning column 5 through other forms, and the present application is not limited to this, and is intended to ensure the stability of the assembly between the spring 4 and the positioning column 5.

Furthermore, the positioning column 5 is inserted to a position half of the height of the whole spring 4, so that the supporting force of the positioning column 5 on the spring 4 far away from the valve ball 3 is improved, and the spring 4 far away from the valve ball 3 is prevented from being excessively bent when the valve ball 3 extrudes the spring 4.

In another embodiment, referring to fig. 4, the upper cover 1 is further provided with a guide assembly, the valve ball 3 is provided with a sleeve block 6, two sides of the sleeve block 6 extend outwards to protrude the valve ball 3, and the guide assembly is connected with the protruding part of the sleeve block 6, so that the valve ball 3 is guided by the sleeve block 6 when moving up and down.

Specifically, the guide assembly comprises a fixed seat 7 and a guide rod 8, the fixed seat 7 is fixedly arranged on the bottom surface of the inner part of the upper cover 1 around the positioning assembly, one end of the guide rod 8 is in threaded assembly connection with the fixed seat 7, and the other end of the guide rod 8 penetrates through a guide groove formed in the sleeve block 6; wherein, the part of the guide rod 8 passing through the sleeve block 6 is abutted against the upper end surface of the fixed scroll 2.

In this embodiment, upper cover 1 is equipped with the direction subassembly, is provided with the cover block 6 of being connected with the direction subassembly on the valve ball 3, and when the valve ball 3 was shifted up or reset by spring 4 effect by high-pressure gas impact, the cover block 6 can be followed the direction subassembly and removed to play the guide effect to valve ball 3, avoid valve ball 3 to rock, guarantee that valve ball 3 reciprocates with the axle center with the gas vent, improve valve ball 3's leakproofness.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A novel exhaust valve structure for a compressor comprises an upper cover and a fixed scroll disk assembled and connected with the upper cover, and is characterized in that,

a positioning assembly is arranged in the upper cover, and an exhaust valve assembly is assembled on the upper cover through the positioning assembly; the exhaust valve assembly comprises a valve ball and an elastic piece, the elastic piece is fixedly arranged on the positioning assembly, and the valve ball is arranged at the end part of the elastic piece far away from the positioning assembly, so that the valve ball blocks an exhaust port on the fixed scroll disc under the action of the elastic piece in a natural state; and a guide oblique angle is arranged at the contact part of the exhaust port and the valve ball.

2. The novel discharge valve structure for compressor as claimed in claim 1, wherein said valve ball is integrated with said elastic member.

3. The novel exhaust valve structure for compressor as claimed in claim 1, wherein the positioning assembly includes a positioning post, the positioning post is disposed on the bottom surface of the inner portion of the upper cover and extends toward the fixed scroll, and the elastic member is fixedly disposed on the positioning post.

4. The novel exhaust valve structure for compressor as claimed in claim 3, wherein the elastic member is sleeved on the positioning post and connected with the positioning post in interference fit.

5. The novel discharge valve structure for compressor as claimed in claim 4, wherein said positioning post is inserted to a position of half of the overall height of said elastic member.

6. The novel discharge valve structure for compressor as claimed in claim 3, wherein said positioning post is integrally formed with said upper cover.

7. The novel discharge valve structure for compressor as claimed in claim 1, wherein said upper cover further comprises a guide assembly, said ball valve is provided with a sleeve block, two sides of said sleeve block are extended outwards to form a protruded ball valve, said guide assembly is connected to the protruded portion of said sleeve block, so that the ball valve can be guided by said sleeve block when moving up and down.

8. The novel discharge valve structure for compressor as claimed in claim 7, wherein the guide assembly includes a fixing seat and a guide rod, the fixing seat is fixedly disposed on the bottom surface of the inner portion of the upper cover around the positioning assembly, one end of the guide rod is fixedly disposed on the fixing seat, and the other end of the guide rod passes through the sleeve block.