Air conditioning compressor exhaust valve assembly

Abstract

The exhaust valve disc assembly of the present invention comprises a valve seat, a limit piece and an exhaust valve disc, wherein the exhaust valve disc and one end of the limit piece are fixedly connected to the valve seat by a bolt piece, and the valve seat is provided with an exhaust port, and the exhaust valve disc blocks the exhaust port, and the limiting part is provided with a U-shaped groove structure facing the exhaust valve disc. A U-shaped air cushion body is fixedly installed in the U-shaped groove structure, and one end of the U-shaped air cushion body elastically squeezes the exhaust valve disc; the present invention utilizes the U-shaped air cushion body to elastically press the exhaust valve disc and provide elastic buffer when the exhaust valve disc collides with the limit piece, thereby reducing the impact force of the exhaust valve disc on the limit piece and the collision noise between the valve disc and the limit piece, and can pressurize the exhaust valve disc after the exhaust valve disc rebounds, thereby reducing the micro-vibration of the exhaust valve disc and the valve seat. The overall structure is simple, the noise is low, the cost is low, the noise caused by the operation of the valve disc can be effectively reduced, and the service life of the exhaust valve disc is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to an exhaust valve plate assembly for an air-conditioning compressor. Background Art

[0002] The compressor is a vital component of the refrigerator, and the valve plate assembly of the compressor plays an important role in the performance and service life of the compressor. The exhaust valve plate is an elastic plate provided on the exhaust port of the compressor. It performs reciprocating motion after the compressor exhausts and exhausts to open and close the exhaust port. When the compressor is working, the exhaust valve plate and the limiter generate a strong impact force, which in turn generates noise. Moreover, when the exhaust valve plate rebounds and fits the valve seat, the exhaust valve plate and the valve seat will also produce micro-vibration, which aggravates the noise. In addition, the rapid and strong impact of the exhaust valve plate will reduce the service life of the exhaust valve plate. Summary of the Invention

[0003] The main purpose of the present invention is to provide an air-conditioning compressor exhaust valve plate assembly, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an air-conditioning compressor exhaust valve plate assembly, including a valve seat, a limit member and an exhaust valve plate, the exhaust valve plate and one end of the limit member are fixedly connected to the valve seat by a bolt member, the valve seat is provided with an exhaust port, the exhaust valve plate blocks the exhaust port, and the limit member is provided with a U-shaped groove structure facing the exhaust valve plate, a U-shaped air cushion body is fixedly installed in the U-shaped groove structure, and one end of the U-shaped air cushion body elastically squeezes the exhaust valve plate.

[0005] Preferably, the limiting member includes a straight section and an arc section connected as one body, and the U-shaped groove structure is provided on the arc section.

[0006] Preferably, the U-shaped groove structure includes a through groove arranged along the length direction of the arc segment, and the front and rear ends of the through groove are respectively provided with a front notch opening and a rear notch opening opened on the arc segment.

[0007] Preferably, the U-shaped air cushion body includes a straight air pipe arranged in the through groove, the two ends of the straight air pipe are respectively connected to the front flexible bellows and the rear flexible bellows, the front flexible bellows and the rear flexible bellows are respectively arranged in the front notch and the rear notch and extend out of the front notch and the rear notch, and the ends of the front flexible bellows and the rear flexible bellows are fixedly connected with a bonding plate.

[0008] Preferably, the exhaust valve plate includes a tail end, a cantilever and a head end, and one end of the head end that is in contact with the exhaust port is provided with a sunken protrusion, and the sunken protrusion extends into the air outlet end of the exhaust port.

[0009] Preferably, the air outlet end of the exhaust port is a flared structure, and the sunken protrusion is fitted with the flared structure.

[0010] Preferably, the valve seat is provided with an annular groove on the outer side of the air outlet end of the exhaust port, an annular sound absorbing pad is embedded in the annular groove, and the top surface of the annular sound absorbing pad is not higher than the surface of the valve seat.

[0011] Compared with traditional technology, the beneficial effects produced by the present invention are: the present invention opens a U-shaped groove structure in the limit piece and installs a U-shaped air cushion body in the U-shaped groove structure, utilizes the U-shaped air cushion body to elastically press the exhaust valve plate and provide elastic buffer when the exhaust valve plate collides with the limit piece, thereby reducing the impact force of the exhaust valve plate on the limit piece, reducing the collision noise between the valve plate and the limit piece, and being able to pressurize the exhaust valve plate after the exhaust valve plate rebounds, reducing the micro-vibration of the exhaust valve plate and the valve seat, and further reducing the collision noise between the exhaust valve plate and the valve seat. The overall structure is simple, the noise is low, the cost is low, the noise caused by the operation of the valve plate can be effectively reduced, and the service life of the exhaust valve plate is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the position limiting member of the present invention;

[0015] Figure 4 This is a schematic diagram of the U-shaped air cushion structure of the present invention;

[0016] Figure 5 The overall structure of the present invention is decomposed and installed schematically Figure 2 ;

[0017] Figure 6 It is a schematic diagram of the exhaust valve structure of the present invention.

[0018] In the figure: 1. Valve seat; 2. Limiting member; 21. Straight section; 22. Arc section; 3. Exhaust valve plate; 31. Tail end; 32. Cantilever; 33. Head end; 34. Sunken protrusion; 4. Exhaust port; 5. Bolt member; 6. U-shaped groove structure; 61. Through groove; 62. Front notch; 63. Rear notch; 7. U-shaped air cushion body; 71. Straight air pipe; 72. Front flexible bellows; 73. Rear flexible bellows; 74. Laminating plate; 8. Annular groove; 9. Annular sound-absorbing pad. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-6As shown, this embodiment provides an air-conditioning compressor exhaust valve plate assembly, including a valve seat 1, a limiter 2 and an exhaust valve plate 3. The valve seat 1 is provided with an exhaust port 4. The exhaust valve plate 3 includes a tail end 31, a cantilever 32 and a head end 33. The head end 33 of the exhaust valve plate 3 fits with the outlet end of the exhaust port 4 to seal the exhaust port 4. The limiter 2 includes a straight section 21 and an arc section 22 connected as one body. Holes coaxial with the mounting hole of the valve seat 1 are provided at the tail end 31 and the straight section 21. The bolt member 5 passes through the hole and the mounting hole to fix the exhaust valve plate 3 and the limiter 2 on the valve seat 1. A U-shaped groove structure 6 is provided inside the arc section 22, and the U-shaped groove structure 6 is arranged toward the exhaust valve plate 3. A U-shaped air cushion body 7 is fixedly installed in the U-shaped groove structure 6. The U-shaped air cushion body One end of 7 elastically squeezes the exhaust valve disc 3. In the initial state of the exhaust valve disc 3, the proximal end of the U-shaped air cushion body 7 elastically pressurizes the exhaust valve disc 3, so that the exhaust valve disc 3 can be tightly attached to the valve seat 1, thereby ensuring that the exhaust valve disc 3 is sealed to the exhaust port 4. During exhaust, the exhaust valve disc 3 bends and squeezes one end of the U-shaped air cushion body 7. After the exhaust valve disc 3 bends to a certain extent, the head end 33 of the exhaust valve disc 3 fits with the other end of the U-shaped air cushion body 7 and is elastically cushioned, thereby avoiding the exhaust valve disc 3 from directly impacting the limiter 2 and reducing noise. Moreover, when the exhaust valve disc 3 returns to fit the valve seat 1, the U-shaped air cushion body 7 can also elastically pressurize the exhaust valve disc 3, reduce the micro-vibration of the exhaust valve disc 3, and further reduce the contact and collision noise between the exhaust valve disc 3 and the valve seat 1.

[0021] like Figure 2-4As shown, the U-shaped groove structure 6 includes a through groove 61 arranged along the length direction of the arc segment 22. The front and rear ends of the through groove 61 are respectively provided with a front notch 62 and a rear notch 63 opened on the arc segment 22. The front notch 62 is close to the straight section 21, and the rear notch 63 is located at the high end of the arc end, forming a U-shaped structure with front and back interconnected. The U-shaped air cushion body 7 includes a straight air pipe 71 arranged in the through groove 61. The two ends of the straight air pipe 71 are respectively connected to the front flexible bellows 72 The front flexible bellows 72 and the rear flexible bellows 73 are respectively arranged in the front notch 62 and the rear notch 63 and extend out of the front notch 62 and the rear notch 63. The ends of the front flexible bellows 72 and the rear flexible bellows 73 are fixedly connected with a bonding plate 74. The bonding plate 74 is a high-strength rubber plate. In the initial state, the bonding plate 74 connected to the front flexible bellows 72 is in contact with the cantilever 32 of the exhaust valve plate 3, elastically The pressure improves the fit between the head end 33 of the exhaust valve disc 3 and the exhaust port 4. During exhaust, the front end of the exhaust valve disc 3 and the cantilever 32 bend, and the cantilever 32 squeezes the front flexible bellows 72, causing the front flexible bellows 72 to shrink. After shrinkage, the internal gas passes through the vent pipe into the rear flexible bellows 73, thereby strengthening the strength of the rear flexible bellows 73. When the exhaust valve disc 3 is continuously bent, the head end 33 of the exhaust valve disc 3 is fitted with the fitting plate 74 connected to the rear flexible bellows 73, thereby achieving elastic buffering of the exhaust valve disc 3, reducing the impact force of the exhaust valve disc 3 on the limiter 2, and thus reducing the collision noise. When the exhaust valve disc 3 rebounds and fits the valve seat 1, the fitting plate 74 connected to the front flexible bellows 72 always presses the cantilever 32 of the exhaust valve disc 3, thereby reducing the micro-vibration generated by the exhaust valve disc 3 after contacting the valve seat 1, and ensuring that the exhaust valve disc 3 is tightly fitted to the valve seat 1.

[0022] like Figure 5 、 6 As shown, the head end 33 of the exhaust valve plate 3 is located at the exhaust port 4 and is provided with a sunken protrusion 34. The sunken protrusion 34 can be prepared as a whole when the raw materials of the exhaust valve plate 3 are produced, or after the exhaust valve plate 3 is prepared, the head end 33 of the exhaust valve plate 3 is stamped downward in the mold using a stamping mechanism. The sunken protrusion 34 fits the outlet end of the exhaust port 4, thereby increasing the fitting area with the inner wall of the exhaust port 4, and further improving the sealing of the exhaust port 4 to avoid leakage. In order to facilitate the smooth bending of the head end 33 of the exhaust valve plate 3 during exhaust, the outlet end of the exhaust port 4 is set to a flared structure, and the sunken protrusion 34 is set in conjunction with the flared structure. Specifically, it can be set to a frustum structure, and the sinking height of the sunken protrusion 34 is 0.2-0.4mm.

[0023] like Figure 1 、 2As shown, the valve seat 1 is located at the outer side of the air outlet end of the exhaust port 4 and is provided with an annular groove 8. An annular sound-absorbing pad 9 is embedded in the annular groove 8. The top surface of the annular sound-absorbing pad 9 is not higher than the surface of the valve seat 1. After the head end 33 of the exhaust valve disc 3 is attached to the valve seat 1, the annular sound-absorbing pad 9 will not cause the exhaust valve disc 3 to be lifted. When the head end 33 of the exhaust valve disc 3 rebounds, the annular sound-absorbing pad 9 can absorb part of the noise, thereby further improving the noise reduction effect.

[0024] When the air is exhausted, the cantilever 32 of the exhaust valve disc 3 bends and the head end 33 moves upward in an arc shape, and the cantilever 32 squeezes one end of the U-shaped air cushion body 7 and inflates the other end of the U-shaped air cushion body 7 to increase the elastic supporting force, so that the head end 33 of the exhaust valve disc 3 collides and fits with the other end of the U-shaped air cushion body 7, and the U-shaped air cushion body 7 is used to buffer the head end 33, reducing the impact force of the head end 33 on the limit member 2, and the proximal end of the U-shaped air cushion body 7 also elastically presses the cantilever 32 of the exhaust valve disc 3, and can pressurize the cantilever 32 of the exhaust valve disc after the exhaust valve disc rebounds, thereby reducing the micro-vibration of the exhaust valve disc 3 and the valve seat 1, and further reducing the collision noise of the exhaust valve disc 3 and the valve seat 1.

[0025] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An air conditioner compressor exhaust valve plate assembly, comprising a valve seat, a stopper, and an exhaust valve plate, wherein one end of the exhaust valve plate and the stopper is fixedly connected to the valve seat by a bolt, the valve seat is provided with an exhaust port, and the exhaust valve plate blocks the exhaust port, characterized in that: The limiter is provided with a U-shaped groove structure facing the exhaust valve plate, and a U-shaped air cushion body is fixedly installed in the U-shaped groove structure, and one end of the U-shaped air cushion body elastically squeezes the exhaust valve plate. The limiter includes a straight section and an arc section connected as a whole, and the U-shaped groove structure is provided on the arc section. The U-shaped groove structure includes a through groove arranged along the length direction of the arc section, and the front and rear ends of the through groove are respectively provided with a front notch and a rear notch opened on the arc section. The U-shaped air cushion body includes a straight air pipe provided in the through groove, and the two ends of the straight air pipe are respectively connected to the front flexible bellows and the rear flexible bellows, which are respectively provided in the front notch and the rear notch and extend out of the front notch and the rear notch, and the ends of the front flexible bellows and the rear flexible bellows are fixedly connected with a fitting plate.

2. The air conditioner compressor exhaust valve assembly according to claim 1, characterized in that: The exhaust valve plate comprises a tail end, a cantilever and a head end. One end of the head end that is in contact with the exhaust port is provided with a sunken protrusion, and the sunken protrusion extends into the air outlet end of the exhaust port.

3. The air conditioner compressor exhaust valve assembly according to claim 2, characterized in that: The air outlet end of the exhaust port is a flared structure, and the sunken protrusion is fitted with the flared structure.

4. The air conditioner compressor exhaust valve assembly according to claim 1, characterized in that: The valve seat is provided with an annular groove on the outer side of the air outlet end of the exhaust port, and an annular sound absorbing pad is embedded in the annular groove, and the top surface of the annular sound absorbing pad is not higher than the surface of the valve seat.

Images