CN113339233A

CN113339233A - Exhaust assembly, compressor and have its electrical apparatus

Info

Publication number: CN113339233A
Application number: CN202110758200.3A
Authority: CN
Inventors: 邓聪聪; 徐敏; 陈娟娟; 张家铭
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-09-03
Anticipated expiration: 2041-07-05
Also published as: CN113339233B

Abstract

The application provides an exhaust assembly, a compressor, an electric appliance compression part with the same and a valve body, wherein the compression part comprises an exhaust hole which is used for exhausting gas compressed by the compression part; the valve body can move to open or close the exhaust hole, and when the valve body closes the exhaust hole, the valve body is in line contact with the compression part. According to exhaust subassembly, compressor and have its electrical apparatus of this application, can solve the valve block adhesion problem, reduce the resistance of opening in exhaust hole.

Description

Exhaust assembly, compressor and have its electrical apparatus

Technical Field

The application belongs to the technical field of electrical appliances, and particularly relates to an exhaust assembly, a compressor and an electrical appliance with the same.

Background

At present, the exhaust of the compressor is discharged from the compressor exhaust pipe through a cylinder block compression cavity, an air suction valve sheet gasket, an air suction valve sheet, a valve plate, an exhaust valve sheet, a lift limiter, a cylinder cover gasket, a cylinder cover, a cylinder block vent hole, an exhaust silencing cavity and an inner exhaust pipe assembly. The main exhaust assembly consists of a valve plate, an exhaust valve plate and a lift limiter, and the working principle is that when the pressure difference between two sides of the exhaust valve plate is enough to overcome the rigidity of the exhaust valve plate, the valve plate is opened, and refrigerant gas is exhausted; along with the continuous reduction of pressure differential, the effect of valve block self spring force makes its aperture for the valve plate exhaust hole reduce, and the valve block closes gradually.

However, the exhaust valve plate is usually fixed to the valve plate by a rivet or a lift stopper. In actual operation, due to the influence of compressor lubricating oil, the exhaust valve plate is always adhered to the valve plate, and opening action is difficult, so that the exhaust pressure loss of the compressor is increased, power consumption is increased, and COP is reduced.

Therefore, how to provide an exhaust component, a compressor and an electric appliance with the same, which can solve the problem of valve plate adhesion and reduce the opening resistance of an exhaust hole, becomes a problem which needs to be solved urgently by a person skilled in the art.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing an exhaust subassembly, compressor and have its electrical apparatus, can solve the valve block adhesion problem, reduces the resistance of opening in exhaust hole.

In order to solve the above problem, the present application provides an exhaust assembly including:

the compression part comprises an exhaust hole which is used for exhausting gas compressed by the compression part;

and the valve body can move to open or close the exhaust hole, and when the exhaust hole is closed by the valve body, the valve body is in line contact with the compression part.

Further, the compression part is provided with a vent hole, the exhaust hole is communicated with the vent hole, and the vent hole is used for being communicated with an exhaust pipeline so as to exhaust gas compressed by the compression part.

Furthermore, the exhaust hole is formed in the side wall of the vent hole, and the valve body can move in the vent hole to open or close the exhaust hole.

Further, the compression part comprises a compression cavity, a connecting channel is arranged on the compression part, and the connecting channel is communicated with the compression cavity and the exhaust hole.

Furthermore, a connecting groove is arranged on the end surface of the compression end of the compression part 1 to form a connecting channel 12, and the connecting groove is communicated with the compression cavity and the exhaust hole 11.

Furthermore, a limiting structure is arranged in the vent hole and used for limiting the axial movement of the valve body in the vent hole.

Furthermore, a necking section is arranged in the vent hole, and the necking section is located on one side of the exhaust hole to form a limiting structure.

Furthermore, the compression part comprises a cylinder seat, a cylinder cover and an air suction valve plate assembly, and the vent hole is arranged on the cylinder seat, the cylinder cover or the air suction valve plate assembly; when the vent hole is arranged on the cylinder seat, the vent hole is provided with an open end, and the limiting air suction valve plate assembly is blocked at the open end to form a limiting structure.

Further, the valve body can close the exhaust hole under the action of gravity; when the valve body is subjected to the pressure difference between the inside of the exhaust hole and the outside gas pressure of the valve body, the valve body can overcome the received gravity to open the valve body, and the exhaust hole is opened by the valve body.

Further, the exhaust hole includes the convergent section, and the convergent section sets up in the top of exhaust hole, and the aperture of convergent section reduces gradually from top to bottom.

Further, when the valve body closes the exhaust hole, a distance is reserved between the valve body and the bottom end of the exhaust hole.

Further, the valve body is any one of a sphere, a circular truncated cone or a cone; when the valve body is a sphere, the diameter of the valve body is smaller than the aperture of the top end of the exhaust hole; the diameter of the valve body is larger than the aperture of the bottom end of the exhaust hole.

Further, the compression chamber is a piston compression chamber.

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

According to still another aspect of the application, an electric appliance is provided, which comprises the electric appliance.

The application provides an exhaust subassembly, compressor and have its electrical apparatus for the contact mode of valve body and compression portion becomes line contact for becoming by original face contact, and area of contact reduces greatly, can effectively solve the valve block adhesion problem, reduces the resistance of opening in exhaust hole, and the compressor consumption reduces.

Drawings

FIG. 1 is a schematic view of a fitting structure of a valve body and an exhaust hole according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an exhaust assembly according to an embodiment of the present application.

The reference numerals are represented as:

1. a compression section; 11. an exhaust hole; 12. a connecting channel; 13. a vent hole; 2. a valve body.

Detailed Description

Referring collectively to fig. 1-2, an exhaust assembly comprising: the valve comprises a compression part 1 and a valve body 2, wherein the compression part 1 comprises an exhaust hole 11, and the exhaust hole 11 is used for exhausting gas compressed by the compression part 1; the valve body 2 can move to open or close the exhaust hole 11, when the valve body 2 closes the exhaust hole 11, the valve body 2 is in line contact with the compression part 1. Make the contact mode of valve body 2 and compression part 1 become line contact for becoming by original face contact, area of contact reduces greatly, can effectively solve the valve block adhesion problem, reduces the resistance of opening in exhaust hole, and the compressor consumption reduces.

This application has still disclosed some embodiments, is provided with vent hole 13 on the compression part 1, and exhaust hole 11 communicates vent hole 13, and vent hole 13 is used for communicating exhaust pipe way in order to discharge through the gas after the compression of compression part 1, and exhaust hole 11 sets up in vent hole 13, and compression part 1 exhausts in this application in proper order through the compression chamber, enter into exhaust hole 11, then directly discharges from exhaust pipe way through vent hole 13. The exhaust path is greatly shortened, the exhaust pressure loss is reduced, and the refrigerating capacity of the compressor is ensured. And this application compressor cancels discharge valve piece and lift stopper, and valve plate and cylinder cap obtain simplifying in structure and technology, and valve plate and cylinder cap function reduce, and the structure is simplified, and the process reduces, can effectively reduce compressor cost. The exhaust pipeline comprises a first-stage exhaust silencing cavity, a second-stage exhaust silencing cavity, an inner exhaust pipe assembly and a compressor exhaust pipe which are sequentially connected with the vent hole 13. And the exhaust path shortens, and no longer passes through valve plate and cylinder cap, and the overheated reduction of breathing in improves the compressor thermal efficiency, and the performance obtains promoting. The problems that the cylinder cover generates harmful heating to suction gas, the heat efficiency of the compressor is reduced, and the performance of the compressor is reduced are solved, and the problems that the structure and the process of the cylinder cover and the valve plate are complex and the cost is high are also solved. The valve body 2 may be a pressure ball.

In the prior art, the exhaust structure of the existing compressor mainly comprises a valve plate, an exhaust valve plate and a lift limiter, and the principle of the exhaust structure is to realize the opening and closing of an exhaust channel of the compressor by utilizing the pressure difference of two sides of the valve plate and the self rigidity. In actual operation, the exhaust valve plate is usually adhered to the valve plate, the opening resistance is increased, the power consumption of the compressor is increased, the performance is reduced, the valve plate is easy to fatigue to cause failure under the action of high-frequency bending load, and the reliability is poor. The exhaust structure comprises a groove for drainage, a conical hole for ventilation and a pressure ball with certain mass, and the opening and closing of the exhaust channel of the compressor are realized by utilizing the jacking and falling of the pressure ball. The exhaust structure can thoroughly solve the problem of adhesion, has high reliability, no longer causes suction overheating, improves the heat efficiency of the compressor, and improves the performance. In addition, an exhaust valve plate and a lift limiter are eliminated, the functions of the valve plate and the cylinder cover are reduced, the structure is simplified, the working procedures are reduced, and the cost of the compressor is effectively reduced.

In the prior art, the exhaust assembly comprises a cylinder block compression cavity, a cylinder block vent hole 13, a first-stage exhaust silencing cavity, a second-stage exhaust silencing cavity, an air suction valve sheet gasket, an air suction valve sheet, a valve plate, an exhaust valve sheet, a lift limiter, a cylinder cover gasket, a cylinder cover, an inner exhaust pipe assembly and a compressor exhaust pipe. The traditional exhaust path of the compressor sequentially passes through a compression cavity of a cylinder block, an air suction valve plate gasket, an air suction valve plate, an air discharge valve plate, a lift limiter, a cylinder cover gasket and a cylinder cover, then starts from the cylinder cover, reaches a vent hole 13 of the cylinder block through the cylinder cover gasket, the valve plate, the air suction valve plate and the air suction valve plate gasket, then passes through a first-stage exhaust silencing cavity, a second-stage exhaust silencing cavity and an inner exhaust pipe assembly, and finally is discharged from an exhaust pipe of the compressor. Compared with the application, the traditional exhaust path of the compressor is too long, the exhaust pressure loss is large, the cold quantity is low, and the performance is poor.

In the prior art, conventional cylinder heads contain an intake low pressure region and an exhaust high pressure region. When the high temperature exhaust gas passes through the cylinder head, the refrigerant entering the suction low pressure zone is heated up detrimentally by heat conduction, reducing the thermal efficiency of the compressor and thus its performance. Besides screw holes for mounting and fixing, the traditional valve plate is also provided with a valve plate exhaust hole, a valve plate vent hole and a valve plate suction hole. Wherein, in order to ensure the air tightness of the compressor valve group, the exhaust hole of the valve plate needs to be tightly attached to the exhaust valve plate. During machining, after the valve plate is ground on the two end faces, the exhaust holes of the valve plate need to be independently ground, and the process is complex. During assembly, the exhaust valve plate is placed at the corresponding position of the exhaust hole and then fixed by the lift limiter, and the process is completed manually, so that the time consumption is long and the cost is high. The conventional exhaust valve plate is fixed on the valve plate through a lift limiter. The lift limiter is used to control the maximum lift of the exhaust valve plate and prevent the exhaust valve plate from bending and deforming irreversibly. When the pressure difference between two sides of the exhaust valve plate is enough to overcome the rigidity of the exhaust valve plate, the valve plate is opened, and the refrigerant gas is exhausted; along with the continuous decline of pressure in the cylinder block compression chamber, the effect of exhaust valve piece self spring force makes its aperture for the exhaust hole on the valve plate reduce, and the exhaust valve piece closes gradually. In actual operation, because of the influence of lubricating oil in the compressor, the discharge valve piece easily glues on the valve plate, causes its resistance of opening grow for the compressor consumption height becomes. Compare in this application, because the discharge valve piece frequently opens the closing action among the prior art, very easily produce fatigue and lead to its functional failure, the reliability is relatively poor.

The application also discloses some embodiments, exhaust hole 11 is seted up on the lateral wall of air vent 13, and valve body 2 is movable in air vent 13 in order to open or close exhaust hole 11, and gas gets into exhaust hole 11, and valve body 2 opens or closes exhaust hole 11 under the effect of the pressure differential in exhaust hole 11 both sides. The valve body 2 can move in the radial direction of the vent hole 13 to open or close the vent hole 11, so that the problems that a vent valve plate is adhered to a valve plate, the opening resistance is large, and the power consumption of a compressor is increased can be effectively solved; the valve plate is frequently opened and closed, so that the valve plate is easy to fatigue to cause failure and poor in reliability; the exhaust closing is delayed, the gas generates backflow, and the refrigerating capacity of the compressor is influenced.

The application also discloses some embodiments, compression portion 1 includes the compression chamber, is provided with connecting channel 12 on the compression portion 1, and connecting channel 12 intercommunication compression chamber and exhaust hole 11. When the vent hole 13 is arranged on the cylinder seat, a drainage groove is arranged on the cylinder seat to form a connecting channel 12; exhaust hole 11 is seted up on the lateral wall of air vent 13, and exhaust hole 11 is big-end-up's bell mouth, and the valve body includes lower part and upper portion, and the valve body upper portion is located exhaust hole 11 outsidely, and valve body lower part is located exhaust hole 11, and the gradient of bell mouth is greater than the gradient of valve body lower part, so the lower part of bell mouth does not contact with the lateral wall of bell mouth, and only the connecting wire and the bell mouth contact formation line contact of upper portion and lower part. The exhaust reaches the lower part of the valve body 2 erected above the tapered hole from the compression cavity of the cylinder seat through the drainage groove, and when the valve body 2 is jacked up, gas flows through the vent hole 13 to enter the exhaust silencing cavity, so that the exhaust path is effectively shortened, the exhaust pressure loss is reduced, and the refrigerating capacity of the compressor is improved. The valve body 2 naturally falls back by gravity to block the exhaust hole 11, the action is rapid, the exhaust channel is closed in time, the gas backflow is less, the refrigerating capacity of the compressor is ensured, the valve body 2 is not under the action of bending load, and the reliability is high.

The application also discloses some embodiments, seted up the spread groove on the terminal surface of compression portion 1 compression end and formed connecting channel 12, spread groove intercommunication compression chamber and exhaust hole 11. The connecting channel 12 can be a connecting groove, the connecting groove is arranged on the end face of the cylinder block close to the air suction valve plate assembly, namely the end face of the compression end of the compression part 1, and the connecting channel 12 is formed at the notch of the connecting groove by blocking after the air suction valve plate assembly is installed.

The application also discloses some embodiments, still be provided with limit structure in the vent hole 13, limit structure is used for carrying on spacingly to the axial activity of valve body 2 in vent hole 13 for valve body 2 can only be radially mobile at vent hole 13, so that vent hole 13 can be accurate open and close exhaust hole 11.

The application also discloses some embodiments, be provided with the throat section in the air vent 13, the throat section is located one side formation limit structure of exhaust hole 11.

The application also discloses some embodiments, the compression part 1 comprises a cylinder seat, a cylinder cover and an air suction valve plate assembly, and the vent hole 13 is arranged on the cylinder seat, the cylinder cover or the air suction valve plate assembly; when the vent hole 13 is arranged on the cylinder block, the vent hole 13 has an open end; the air suction valve plate assembly is blocked at the opening end to form a limiting structure.

The application also discloses some embodiments, and limit structure includes first limit structure, and first limit structure is used for restricting the activity of valve body 2 in the first side of air vent 13 axial, is provided with the throat section in the air vent 13, and the throat section is located the first side of exhaust hole 11 and inboard formation first limit structure promptly. The diameter of the constriction section is d1 and the minimum length on the valve body 2 is d2, wherein d1< d 2. Because the aperture of the necking section is small, the valve body 2 can be prevented from moving to the first side of the exhaust hole 11.

The present application also discloses embodiments in which, when the vent hole 13 is provided on the cylinder block, the vent hole 13 has an open end, the open end being located on a second side, i.e., the outer side, of the exhaust hole 11; the limiting structure comprises a second limiting structure, the second limiting structure is used for limiting the movement of the valve body 2 on the axial second side in the vent hole 13, and the air suction valve plate assembly is blocked at the opening end to form the second limiting structure. The air vent 13 on the suction valve plate is eliminated. That is, the vent hole 13 is a stepped hole, and in order to facilitate installation of the valve body 2, the diameter of the opening end close to the end face of the cylinder block is larger than that of the valve body 2, and the diameter of the necking section is smaller than that of the valve body 2. The air vent 13 divide into from outside to inside big footpath section and the throat section that communicates in proper order promptly, and exhaust hole 11 sets up on the lateral wall of big footpath section, and the opening up, and the diameter of big footpath section is greater than the diameter of valve body 2, is convenient for get into in the air vent 13 with the installation of valve body 2, and the aperture of throat section is less than the diameter of valve body 2, can prevent the axial inboard activity of valve body 2 to air vent 13.

The application also discloses embodiments, the valve body 2 can close the exhaust hole 11 under the action of gravity; when the valve body 2 is opened by the pressure difference between the inside of the exhaust hole 11 and the outside gas pressure of the valve body 2, the valve body 2 opens the exhaust hole 11. When the pressure difference between the upper part and the lower part of the valve body 2 is larger than the self weight of the valve body, the valve body 2 is jacked up, the exhaust hole 11 is opened, and the refrigerant gas is exhausted; when the pressure difference between the upper part and the lower part of the valve body 2 is smaller than the self weight, the valve body 2 is reset, and the exhaust hole 11 is closed.

The application also discloses some embodiments, the exhaust hole 11 includes the convergent section, and the convergent section sets up in the top of the 11 of exhaust hole, and the aperture of convergent section reduces gradually from top to bottom.

The application also discloses some embodiments, when the valve body 2 closes the exhaust hole 11, there is a distance between the valve body 2 and the bottom end of the exhaust hole 11. Namely, the valve body 2 has a certain weight, and is erected at the upper end of the exhaust hole 11, the lowest point must keep a distance with the bottom of the exhaust hole 11, and the distance is not too large, so that the exhaust clearance volume is easily influenced, and the value is 1-2 mm. The weight of the valve body 2 needs to be set by combining the material of the valve body, the displacement of the compressor, the working condition of the compressor and the like.

The application also discloses some embodiments, the valve body 2 is any one of a sphere, a circular truncated cone or a cone; when the valve body 2 is a sphere, the diameter of the valve body 2 is smaller than the aperture of the top end of the exhaust hole 11; the diameter of the valve body 2 is larger than the aperture of the bottom end of the exhaust hole 11, so that the air tightness of the compressor can be ensured. When the pressure difference between the upper part and the lower part of the valve body 2 is larger than the self weight of the valve body, the valve body 2 is jacked up, the exhaust hole 11 is opened, and the refrigerant gas is exhausted; when the pressure difference between the upper part and the lower part of the valve body 2 is smaller than the dead weight of the valve body 2, the pressure ball resets and the exhaust hole 11 is closed. The valve body 2 and the exhaust hole 11 are changed into line contact from surface contact of the original valve plate and the exhaust valve plate, the contact area is greatly reduced, the adhesion problem is thoroughly solved, the opening resistance is reduced, and the power consumption of the compressor is reduced. The pressure ball naturally falls back by gravity, the action is rapid, the exhaust passage is closed in time, the gas backflow is reduced, and the refrigerating capacity of the compressor is ensured. When the valve body 2 is a truncated cone or a cone, the taper is the same as that of the tapered hole.

The application also discloses some embodiments, the compression chamber is a piston compression chamber.

According to an embodiment of the application, a compressor is provided, and comprises a discharge assembly.

According to an embodiment of the application, an electric appliance is provided, which 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. An exhaust assembly, comprising:

a compression part (1), the compression part (1) comprising a gas discharge hole (11), the gas discharge hole (11) being used for discharging gas compressed by the compression part (1);

and the valve body (2) can move to open or close the exhaust hole (11), and when the valve body (2) closes the exhaust hole (11), the valve body (2) is in line contact with the compression part (1) in a contact mode.

2. The exhaust assembly as claimed in claim 1, wherein a vent hole (13) is provided on the compression part (1), the exhaust hole (11) is communicated with the vent hole (13), and the vent hole (13) is used for communicating with an exhaust pipeline to exhaust gas compressed by the compression part (1).

3. A vent assembly as claimed in claim 2, wherein the vent hole (11) opens in a side wall of the vent hole (13), the valve body (2) being movable within the vent hole (13) to open or close the vent hole (11).

4. The discharge assembly according to claim 1, characterized in that the compression part (1) comprises a compression chamber, and a connecting channel (12) is arranged on the compression part (1), wherein the connecting channel (12) is communicated with the compression chamber and the discharge hole (11).

5. The exhaust assembly as claimed in claim 4, wherein the compression end of the compression part (1) is provided with a connecting groove on an end surface thereof to form the connecting passage (12), and the connecting groove connects the compression chamber and the exhaust hole (11).

6. The exhaust assembly as claimed in claim 2, wherein a limiting structure is further provided in the vent hole (13) for limiting axial movement of the valve body (2) within the vent hole (13).

7. The exhaust assembly according to claim 6, characterized in that a constricted section is arranged in the vent hole (13), and the constricted section is located on one side of the exhaust hole (11) to form the limiting structure.

8. An exhaust assembly according to claim 6, wherein the compression part (1) comprises a cylinder block, a cylinder head and an intake valve plate assembly, the breather hole (13) being provided in the cylinder block, the cylinder head or the intake valve plate assembly; the breather hole (13) has an open end when the breather hole (13) is disposed on the cylinder block; the air suction valve plate assembly is blocked at the opening end to form the limiting structure.

9. The exhaust assembly according to claim 1, characterized in that the valve body (2) is able to close the exhaust hole (11) under the effect of gravity; when the valve body (2) is subjected to the pressure difference between the inside of the exhaust hole (11) and the external gas pressure of the valve body (2) and can overcome the received gravity to open the valve body (2), the valve body (2) opens the exhaust hole (11).

10. The exhaust assembly as claimed in claim 1, wherein the exhaust hole (11) comprises a tapered section provided at a tip end of the exhaust hole (11), the tapered section having a hole diameter gradually decreasing from top to bottom.

11. The exhaust assembly according to claim 1, characterized in that the valve body (2) has a predetermined distance from the bottom end of the exhaust hole (11) when the valve body (2) closes the exhaust hole (11).

12. The exhaust assembly according to claim 1, wherein the valve body (2) is any one of a sphere, a truncated cone, or a cone; when the valve body (2) is a sphere, the diameter of the valve body (2) is smaller than the aperture of the top end of the exhaust hole (11); the diameter of the valve body (2) is larger than the aperture of the bottom end of the exhaust hole (11).

13. The vent assembly of claim 4, wherein the compression chamber is a piston compression chamber.

14. A compressor comprising a discharge assembly, wherein the discharge assembly is as claimed in any one of claims 1 to 13.

15. An electrical appliance comprising a compressor, wherein the compressor is as claimed in claim 14.