CN111140468A

CN111140468A - Exhaust assembly, compressor and air conditioner

Info

Publication number: CN111140468A
Application number: CN201911295323.7A
Authority: CN
Inventors: 莫子扬; 陈娟娟; 徐敏; 冯海
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-05-12
Anticipated expiration: 2039-12-16
Also published as: CN111140468B

Abstract

The application provides an exhaust subassembly, compressor and air conditioner. The exhaust component at least comprises a fixed seat; the exhaust valve plate is fixed on the fixed seat and elastically covers the exhaust port; and one end of the lift piece is abutted against the exhaust valve plate, and the lift piece can be movably arranged on the fixed seat along the movement direction of the exhaust valve plate. The lift piece can be movably abutted against the exhaust valve plate, so that the lift of the exhaust valve plate is ensured to be variable, the exhaust valve plate is suitable for different working conditions, and the collision noise of the exhaust valve plate and the lift piece is reduced.

Description

Exhaust assembly, compressor and air conditioner

Technical Field

The application belongs to the technical field of compressors, and particularly relates to an exhaust assembly, a compressor and an air conditioner.

Background

As is well known, the development direction of home appliance compressors tends to be miniaturized, efficient and low-noise, the requirement on the low-voltage starting capability of the refrigerator compressor is gradually increased, the characteristics of miniaturization, low-voltage starting capability and low noise have obvious market competitive advantages and good user experience, and after the pursuit of people for good life becomes a main social contradiction, higher requirements on the space, energy conservation, noise reduction and high efficiency of home appliances are provided, and products with the characteristics are more and more popular with consumers.

Totally closed reciprocating compressor cylinder head structural style on the existing market is various, one kind is that the exhaust valve piece lift is spacing not to set up on the cylinder head, another kind is that the exhaust valve piece lift is spacing to set up on the cylinder head, as shown in figure 1, has following limitation and problem in the structure that current exhaust valve piece 3 set up on cylinder head 1: (1) the lift height of the traditional exhaust valve plate 3 is generally a fixed value, and the valve plate lift cannot be correspondingly adjusted according to the working condition load change or the running frequency change, so that the optimal performance state of the running working condition of the compressor is achieved, and the performance of the compressor is influenced; (2) present lift 2 integrative castings in cylinder head structure, for the metal material, the valve block directly slaps on lift limit structure, and the direct transmission of striking noise is unfavorable for the low noise design of compressor, (3) traditional valve block slaps lift 2 and is the metal and intermetallic hard contact, and fixed lift 2 does not cushion and unloads the power, causes the valve block reliability bad, and the intensity requirement that needs the valve block steel is higher, and the cost is higher simultaneously.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing an exhaust assembly, compressor and air conditioner, and the lift height of discharge valve piece can change, can adapt to different operating modes.

In order to solve the above problems, the present application provides an exhaust assembly comprising at least

A fixed seat;

the exhaust valve plate is fixed on the fixed seat and elastically covers the exhaust port;

and one end of the lift piece is abutted against the exhaust valve plate, and the lift piece can be movably arranged on the fixed seat along the movement direction of the exhaust valve plate.

Preferably, an elastic component is arranged on the fixed seat, and the other end of the lifting piece abuts against the elastic component.

Preferably, a through hole is formed in the fixed seat, and the lift piece is movably arranged in the through hole along the axial direction of the through hole.

Preferably, the lift member is in sealing engagement with the through hole wall.

Preferably, the through hole is a stepped hole, the stepped hole at least comprises a first hole and a second hole which are communicated, the inner diameter of the first hole is larger than that of the second hole, and the elastic component is arranged between the end face of the first hole and the lifting piece.

Preferably, the lift piece at least comprises an end part made of one or more of butyronitrile, silicon rubber, polyurethane, butyl rubber, copper-zinc-aluminum alloy, iron-chromium-molybdenum alloy, manganese-copper alloy and high polymer resin.

Preferably, one end of the elastic component is fixedly connected to the limiting structure, and the other end of the elastic component is fixedly connected to the lifting piece.

Preferably, the elastic member comprises a compression spring.

According to another aspect of the present application, there is provided an exhaust assembly comprising an exhaust assembly as described above.

According to a further aspect of the present application, there is provided a compressor comprising a discharge assembly as described above or a discharge assembly as described above.

The application provides an exhaust assembly, at least comprising a fixed seat; the exhaust valve plate is fixed on the fixed seat and elastically covers the exhaust port; and one end of the lift piece is abutted against the exhaust valve plate, and the lift piece can be movably arranged on the fixed seat along the movement direction of the exhaust valve plate. The lift piece can be movably abutted against the exhaust valve plate, so that the lift of the exhaust valve plate is ensured to be variable, the exhaust valve plate is suitable for different working conditions, and the collision noise of the exhaust valve plate and the lift piece is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a cylinder head with a traditional exhaust valve plate lift limiting arrangement;

FIG. 2 is an exploded view of a vent assembly according to an embodiment of the present application;

FIG. 3 is a schematic view of a cylinder head assembly according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of a cylinder head of an embodiment of the present application;

FIG. 5 is a partial cross-sectional view of a cylinder head assembly according to an embodiment of the present application.

The reference numerals are represented as:

1. a cylinder head; 11. a through hole; 12. a spring mounting face; 2. a lift member; 3. an exhaust valve plate; 4. a valve plate; 5. a compression spring; A. an inner chamber; B. an outer chamber.

Detailed Description

Referring to fig. 2-5 in combination, according to an embodiment of the present application, an exhaust assembly includes at least

A fixed seat;

the exhaust valve plate 3 is fixed on the fixed seat and elastically covers the exhaust port;

one end of the lift piece 2 is abutted against the exhaust valve plate 3, and the lift piece 2 can be movably arranged on the fixed seat along the movement direction of the exhaust valve plate 3.

The lift piece 2 capable of moving is adopted, the exhaust valve plate 3 can push the lift piece 2 when exhausting, and the motion height of the lift piece 2 can be in a changeable state due to the fact that the lift piece 2 is a moving piece, so that the exhaust valve can adapt to exhaust problems under different working conditions. In addition, the lift piece 2 and the exhaust valve plate 3 are in a leaning state, so that the exhaust valve plate 3 cannot collide when being opened, and collision noise is eliminated. Lift piece 2 is established on the fixing base with the activity vertically, relies on the dead weight to lean on exhaust valve piece 3, can move about from top to bottom under the effect of exhaust valve piece 3.

In some embodiments, the lift member 2 is elastically contacted with the fixed seat, the height change of the lift member 2 is changed by the elastic force, and the damping effect of the elastic force can reduce the vibration and noise transmission of the exhaust valve plate 3 and the lift member 2, and block the vibration and noise transmission from the path.

Specifically, the fixed seat is provided with an elastic component, and the lift piece 2 abuts against the elastic component. The lifting piece 2 realizes the purposes of position variation and collision acting force buffering through an elastic component; in practical application, the lift piece 2 and the fixed seat can be respectively provided with a magnetic pair structure, and the purpose of elastic change is realized by utilizing the characteristic of like-pole repulsion.

In some embodiments, the fixed seat is provided with a through hole 11, and the lifting piece 2 is arranged in the through hole 11 in a manner of being axially movable along the through hole 11; preferably, the lifting piece 2 is in sealing contact with the wall of the through hole 11 and can move along the axial direction of the through hole 22. The lifting piece 2 is hermetically arranged in the through hole 11, and the position of the lifting piece 2 can be changed by the difference of pressures at two ends of the lifting piece.

Preferably, the through hole 11 is a stepped hole including at least a first hole and a second hole communicating with each other, the inner diameter of the first hole is larger than that of the second hole, and the elastic member is provided between the end surface of the first hole and the lift member 2. As shown in fig. 3, the end surface of the first hole is a spring assembling surface 12, and a stepped hole structure is directly adopted, so that the elastic component and the lift piece 2 are conveniently assembled, two ends of the lift piece 2 can be conducted, and the effect of pressure difference between the two ends on the lift piece 2 is facilitated.

In some embodiments, the lift member 2 includes at least an end portion made of one or more of butyronitrile, silicon rubber, polyurethane, butyl rubber, copper-zinc-aluminum alloy, iron-chromium-molybdenum alloy, manganese-copper alloy, and polymer resin. The end part made of the damping and noise-reducing material can obviously reduce the vibration and noise of impact when external force acts on the end part.

The damping and noise reducing material is roughly divided into:

1. rubber and plastic damping materials: including butyronitrile, silicon rubber, polyurethane, polyvinyl chloride, epoxy resin and the like;

2. rubber and foam: including butyl rubber, polyurethane foam, and the like;

3. high damping alloy: copper-zinc-aluminum alloys, iron-chromium-molybdenum alloys, and manganese-copper alloys;

4. damping coating: polymer resins, and the like.

The lift part 2 can also be integrally formed by using a vibration and noise reduction material, the lift part 2 is made of the vibration and noise reduction material, direct impact between metal and metal is avoided, and the impact noise and vibration of the exhaust valve plate can be effectively reduced, so that the noise of the compressor is reduced, and the low-noise design is facilitated; meanwhile, the structure can effectively reduce the impact stress of the exhaust valve plate 3, improve the service life and reliability of the exhaust valve plate 3 and prolong the service life of the compressor.

In some embodiments, both ends of the elastic member are fixedly connected. Preferably, the elastic member comprises a compression spring 5. Through the fixed connection at the two ends of the elastic component, the height change of the lift piece is limited, the lift piece cannot be separated from the limiting structure, particularly, the elastic component adopts the compression spring 5, the lift piece can be abutted to components such as an exhaust valve plate, and collision and noise can be eliminated.

As shown in fig. 5, the fixed seat is a cylinder cover 1, the exhaust assembly specifically comprises a cylinder cover 1, a lift piece 2, an exhaust valve plate 3 and a valve plate 4, a through hole 11 is formed in the cylinder cover 1, and the lift piece 2 is slidably arranged in the through hole 11 of the cylinder cover 1; the cylinder cover 1, the exhaust valve plate 3 and the valve plate 4 are fixedly connected in sequence.

The cylinder cover is shown in fig. 3 and 4, the lifting piece 2 slides freely in the through hole 11, an inner chamber A and an outer chamber B are separated at the same time, it is guaranteed that the inner chamber A and the outer chamber B do not leak mutually, the cylinder cover 1 and the lifting piece 2 are connected and fixed through two ends of a connecting spring, and the change of the initial lifting height of the lifting piece 2 on the cylinder cover 1 is achieved through the original length and rigidity of the connecting spring.

Meanwhile, the through hole 11 in the cylinder cover 1 enables the lift piece 2 on the cylinder cover 1 to be under the pressure action of the inner chamber A and the outer chamber B of the cylinder cover, and the lift height is automatically adjusted according to different pressure differences so as to adapt to the lift height requirements of different working condition load changes or different operating frequency changes of the compressor.

When the exhaust assembly is used in a compressor, when the working condition load of the compressor is heavy or the operation frequency is high, and the pressure of the inner chamber of the cylinder cover is increased, the lift piece 2 moves towards the outer chamber of the cylinder cover under the pressure difference change, the lift height is increased, the opening difficulty of the exhaust valve plate is reduced, the exhaust resistance of the compressor is reduced, and the pressure loss of exhaust is reduced, so that the power consumption of the compressor is reduced, and the performance of the compressor is improved; and vice versa. The structure realizes stepless adjustment of the lift height and self-adaptability of the lift height.

The mode that the spring is connected between the cylinder cover 1 and the lift piece 2 can realize the self-adaptive adjustment of the lifting height through the change of the forced compression amount, and simultaneously reduce the vibration of the exhaust valve plate impacting the lift piece and the transmission of noise through the damping effect of the connecting spring, thereby playing the effects of vibration and noise reduction, leading the vibration noise of the compressor to be lower and having better matching effect with the refrigerator body; meanwhile, the acting force of the valve plate impact is buffered by the spring, so that the impact stress of the valve plate is reduced, and the reliability of the compressor exhaust valve plate is improved.

Two ends of the connecting spring are respectively fixed in the cylinder cover and the lift piece, the connecting mode is not limited, and simple connecting modes such as bonding riveting and the like can be adopted.

According to another aspect of the present application, there is provided a compressor including the discharge assembly as described above.

According to still another aspect of the present application, there is provided an air conditioner including the discharge assembly as described above or the compressor as described above.

It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. 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. An exhaust assembly, characterized by at least comprising

A fixed seat;

the exhaust valve plate (3) is fixed on the fixed seat and elastically covers the exhaust port;

one end of the lift piece (2) is abutted against the exhaust valve plate (3), and the lift piece (2) can be movably arranged on the fixed seat along the movement direction of the exhaust valve plate (3).

2. An exhaust assembly according to claim 1, characterized in that an elastic component is arranged on the fixed seat, and the other end of the lift member (2) abuts against the elastic component.

3. An exhaust assembly according to claim 1, characterized in that the fixing base is provided with a through hole (11), and the lift member (2) is movably provided in the through hole (11) in the axial direction of the through hole (11).

4. An exhaust assembly according to claim 3, characterized in that the lift member (2) is in sealing engagement with the wall of the through hole (11).

5. An exhaust assembly according to claim 3 or 4, characterized in that the through hole (11) is provided as a stepped hole comprising at least a first hole and a second hole communicating with each other, the first hole having an inner diameter larger than the inner diameter of the second hole, and the resilient member being provided between an end surface of the first hole and the lift member (2).

6. An exhaust assembly according to claim 1, characterized in that said lift elements (2) comprise at least an end portion made of one or more of the materials butyronitrile, silicone rubber, polyurethane, butyl rubber, copper-zinc-aluminum alloys, iron-chromium-molybdenum alloys, manganese-copper alloys, polymeric resins.

7. An exhaust assembly according to claim 2, wherein one end of the resilient member is fixedly connected to the limiting structure and the other end is fixedly connected to the lift member (2).

8. A vent assembly according to claim 2 or 7, wherein the resilient member comprises a compression spring (5).

9. A compressor comprising a discharge assembly according to any one of claims 1 to 8.

10. An air conditioner characterised by comprising a discharge assembly as claimed in any one of claims 1 to 8 or a compressor as claimed in claim 9.