Exhaust valve assembly, compressor and air conditioner

Abstract

The present application provides an exhaust valve assembly, a compressor and an air conditioner. The exhaust valve assembly includes a flange (1) and an exhaust assembly. The flange (1) is provided with a valve seat (2), the valve seat (2) is provided with an exhaust port (3), the exhaust assembly is arranged on the valve seat (2), the exhaust assembly includes a valve plate (4) capable of closing the exhaust port (3), a rotary exhaust structure is arranged in the exhaust port (3), a refrigerant flow hole (5) is arranged on the rotary exhaust structure, the rotary exhaust structure is axially limited in the exhaust port (3) and can rotate relative to the exhaust port (3) when the valve plate (4) strikes the valve seat (2). According to the exhaust valve assembly of the present application, the impact force of the exhaust valve plate striking the valve seat can be reduced, the mechanical noise can be reduced, and the sound quality can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and particularly relates to an exhaust valve assembly, a compressor, and an air conditioner. Background Art

[0002] With the miniaturization of compressor design and the pursuit of high-performance and low-cost design concepts, it is becoming increasingly difficult to reduce the noise of compressors. However, users have higher and higher requirements for the noise of air conditioners, making the noise reduction design of compressors a key part of compressor design.

[0003] The exhaust assembly of a rotary compressor usually consists of a baffle, a valve plate, a rivet, an exhaust valve seat, etc. Both the valve plate and the valve seat are made of metal materials. When the compressor is operating, high-pressure gas pushes open the valve plate through the exhaust port to exhaust outward. After the exhaust is completed, the valve plate swings downward quickly to close the exhaust port. At this time, the valve plate hitting the valve seat is likely to generate a large impact force, thus forming a large mechanical noise, resulting in the noise of the compressor exceeding the test standard and the sound quality being poor. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present application is to provide an exhaust valve assembly, a compressor, and an air conditioner, which can reduce the acting force of the valve plate hitting the valve seat when the valve plate closes and reduce the noise of the compressor.

[0005] To solve the above problems, the present application provides an exhaust valve assembly, including a flange and an exhaust assembly. The flange is provided with a valve seat, the valve seat is provided with an exhaust port, the exhaust assembly is arranged on the valve seat, the exhaust assembly includes a valve plate capable of closing the exhaust port, a rotary exhaust structure is arranged in the exhaust port, a refrigerant flow hole is arranged on the rotary exhaust structure, the rotary exhaust structure is axially limited in the exhaust port and can rotate relative to the exhaust port when the valve plate hits the valve seat.

[0006] Preferably, the rotary exhaust structure rotates around the central axis of the exhaust port.

[0007] Preferably, the rotary exhaust structure is made of a flexible material.

[0008] Preferably, the rotary exhaust structure is made of a rigid material.

[0009] Preferably, a ring groove is arranged on the inner peripheral wall of the exhaust port, and the rotary exhaust structure includes a cylinder body and a protrusion arranged outside the cylinder body and extending circumferentially. The protrusion is rotatably arranged in the ring groove.

[0010] Preferably, there are multiple protrusions, and the multiple protrusions are arranged at intervals along the outer periphery of the cylinder body.

[0011] Preferably, the annular groove is located in the middle of the axial direction of the exhaust port. An installation groove penetrating upward from the annular groove is provided on the side wall of the exhaust port. An insert block is embedded in the installation groove. After the protrusion is inserted into the annular groove from the installation groove, the insert block stops the protrusion in the annular groove.

[0012] Preferably, the top surface of the insert block is flush with the top surface of the exhaust port, and the bottom surface of the insert block is flush with the side wall of the annular groove.

[0013] Preferably, the annular groove is located in the middle of the axial direction of the exhaust port, the protrusion is arranged corresponding to the annular groove, and the top section of the cylinder body is arc-shaped.

[0014] Preferably, the annular groove is located in the middle of the axial direction of the exhaust port, the protrusion is arranged corresponding to the annular groove, and the protrusion is of an annular structure.

[0015] Preferably, both the protrusion and the top section of the cylinder body are arc-shaped.

[0016] Preferably, the annular groove is located in the middle of the axial direction of the exhaust port, the protrusion is arranged corresponding to the annular groove, and damping holes or damping grooves are provided at the top of the cylinder body.

[0017] Preferably, the annular grooves are located at the top and bottom of the exhaust port, the protrusions are located at the top and bottom of the cylinder body, the protrusion at the top is arranged in the annular groove at the top, and the protrusion at the bottom is arranged in the annular groove at the bottom.

[0018] Preferably, the annular grooves are located at the top and middle of the exhaust port, the protrusions are located at the top and middle of the cylinder body, the protrusion at the top is arranged in the annular groove at the top, and the protrusion at the middle is arranged in the annular groove at the middle.

[0019] Preferably, the protrusion is an annular protrusion.

[0020] Preferably, damping grooves or damping holes are provided on the end surface of the protrusion at the top of the cylinder body facing the valve plate.

[0021] Preferably, the outer diameter of the protrusion is φC, the inner diameter is φA, the outer diameter of the annular groove is φD, and the inner diameter is φB, where φD - φC ≥ 0.2 mm and φB - φA ≥ 0.1 mm.

[0022] Preferably, the annular groove is located in the middle of the axial direction of the exhaust port, the protrusion is arranged corresponding to the annular groove, and the axial gap between the protrusion and the annular groove is δ, where δ ≥ 0.1 mm.

[0023] Preferably, the rotary exhaust structure has a damping coating; and / or damping materials are added inside the rotary exhaust structure.

[0024] According to another aspect of the present application, a compressor is provided, including an exhaust valve assembly, and the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0025] According to another aspect of the present application, an air conditioner is provided, including an exhaust valve assembly, and the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0026] The exhaust valve assembly provided by the present application includes a flange and an exhaust assembly. The flange is provided with a valve seat, the valve seat is provided with an exhaust port, the exhaust assembly is arranged on the valve seat, the exhaust assembly includes a valve plate capable of closing the exhaust port, a rotary exhaust structure is arranged in the exhaust port, a refrigerant flow hole is arranged on the rotary exhaust structure, the rotary exhaust structure is axially limited in the exhaust port, and can rotate relative to the exhaust port when the valve plate strikes the valve seat. By arranging the rotary exhaust structure in the exhaust port, the exhaust valve assembly can give a tangential force to the rotary exhaust structure when the valve plate strikes the valve seat, so that the rotary exhaust structure rotates relative to the exhaust port, thereby absorbing the energy of the valve plate striking the valve seat, reducing the impact force of the valve plate striking the valve seat, improving the service life of the valve plate, reducing the running noise of the compressor and improving the sound quality. Description of the Drawings

[0027] Figure 1 It is a schematic exploded view of the exhaust valve assembly according to an embodiment of the present application;

[0028] Figure 2 It is a schematic structural view of the exhaust valve assembly according to an embodiment of the present application;

[0029] Figure 3 It is a schematic dimensional view of the exhaust valve assembly according to an embodiment of the present application;

[0030] Figure 4 It is a schematic exploded view of the exhaust valve assembly according to an embodiment of the present application;

[0031] Figure 5 It is a schematic view of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0032] Figure 6 It is a schematic view of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0033] Figure 7 It is a schematic exploded view of the exhaust valve assembly according to an embodiment of the present application;

[0034] Figure 8 It is a schematic view of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0035] Figure 9 It is a schematic view of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0036] Figure 10 It is a schematic exploded view of the exhaust valve assembly according to an embodiment of the present application;

[0037] Figure 11 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0038] Figure 12 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0039] Figure 13 Exploded structure schematic diagram of the exhaust valve assembly according to an embodiment of the present application;

[0040] Figure 14 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0041] Figure 15 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0042] Figure 16 Exploded structure schematic diagram of the exhaust valve assembly according to an embodiment of the present application;

[0043] Figure 17 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0044] Figure 18 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0045] Figure 19 Exploded structure schematic diagram of the exhaust valve assembly according to an embodiment of the present application;

[0046] Figure 20 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0047] Figure 21 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0048] Figure 22 Exploded structure schematic diagram of the exhaust valve assembly according to an embodiment of the present application;

[0049] Figure 23 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0050] Figure 24 Schematic diagram of the rotary exhaust structure of the exhaust valve assembly according to an embodiment of the present application;

[0051] Figure 25 Noise comparison chart of the exhaust valve assembly according to an embodiment of the present application and the exhaust valve assembly of the related art at different frequencies.

[0052] The reference signs are shown as:

[0053] 1. Flange; 2. Valve seat; 3. Exhaust port; 4. Valve disc; 5. Refrigerant flow hole; 6. Ring groove; 7. Cylinder body; 8. Protrusion; 9. Vibration damping hole; 10. Vibration damping groove; 11. Lift limiter. Specific implementation manner

[0054] Referring to Figures 1 to 25 As shown, according to an embodiment of the present application, the exhaust valve assembly includes a flange 1 and an exhaust assembly. The flange 1 is provided with a valve seat 2, the valve seat 2 is provided with an exhaust port 3, the exhaust assembly is arranged on the valve seat 2, the exhaust assembly includes a valve disc 4 capable of closing the exhaust port 3, a rotary exhaust structure is arranged in the exhaust port 3, a refrigerant flow hole 5 is arranged on the rotary exhaust structure, the rotary exhaust structure is axially limited in the exhaust port 3, and can rotate relative to the exhaust port 3 when the valve disc 4 strikes the valve seat 2.

[0055] By arranging the rotary exhaust structure in the exhaust port 3, the exhaust valve assembly can give a tangential force to the rotary exhaust structure when the valve disc 4 strikes the valve seat 2, so that the rotary exhaust structure rotates relative to the exhaust port 3, thereby absorbing the energy of the valve disc 4 striking the valve seat 2, reducing the impact force of the valve disc 4 striking the valve seat 2, improving the service life of the valve disc 4, reducing the operating noise of the compressor and improving the sound quality.

[0056] In this embodiment, the rotational tangential force of the rotary exhaust structure is determined by the impact force of the valve disc 4 striking the valve seat 2. The greater the impact force of the valve disc 4 striking the valve seat 2, the greater the rotational tangential force received by the rotary exhaust structure, the greater the rotational speed, and the stronger the ability to absorb the impact force of the valve disc 4. Therefore, it can more effectively absorb the energy of the valve disc 4 striking the valve seat 2, reduce the impact force of the valve disc 4 striking the valve seat 2, improve the service life of the valve disc 4, reduce the operating noise of the compressor and improve the sound quality.

[0057] Referring to Figure 25 It can be seen that the higher the operating frequency of the compressor, the more obvious the energy absorption effect of the rotary exhaust structure, and the more obvious the noise improvement effect on the compressor. It can be seen from this that in the range above 45 Hz, the noise of the rotary exhaust port is lower than that of the conventional single valve disc scheme, and above 63 Hz, there is a significant noise reduction effect. Only the noise comparison diagram between 45 Hz and 90 Hz is given in the figure, but combined with the change trend of the frequency and noise in the figure, it can be determined that this structure also has an obvious noise reduction effect in the range above 90 Hz.

[0058] The rotary exhaust structure in this embodiment is directly installed at the exhaust port 3, without occupying extra space, so the structure is simple and compact. The rotary exhaust structure has a wide application range and can be widely applied to various mechanical devices such as compressors and air compressors.

[0059] In one embodiment, the exhaust valve assembly further includes a lift limiter 11. The lift limiter 11 and the valve plate 4 are fixed to the valve seat 2 together, and are used to limit the upward lift distance of the valve plate 4.

[0060] In one embodiment, the cross-sectional shape of the refrigerant flow hole 5 of the rotary exhaust structure can be circular, rhombic or other shapes.

[0061] The refrigerant flow hole 5 is located at the middle position of the rotary exhaust structure, and the refrigerant can be discharged from the exhaust port 3 through the refrigerant flow hole 5.

[0062] In one embodiment, the refrigerant flow hole 5 is a round hole.

[0063] There are two functions of arranging the refrigerant flow hole 5 on the rotary exhaust structure. One is to serve as a flow channel for the refrigerant, and the other is to increase the shrinkage deformation amount of the rotary exhaust structure, which is convenient for the installation of the rotary exhaust structure.

[0064] In one embodiment, the rotary exhaust structure rotates around the central axis of the exhaust port 3, which can make the rotary exhaust structure and the exhaust port 3 form a coaxial structure. On the one hand, it is more convenient to install and set the rotary exhaust structure, and on the other hand, it can also make the rotation action of the rotary exhaust structure smoother, and can better absorb the impact energy of the valve plate 4 hitting the valve seat 2.

[0065] In one embodiment, the rotary exhaust structure is made of a flexible material. Using a flexible material as the material of the rotary exhaust structure can utilize the flexible deformation ability of the flexible material to further improve the ability of the rotary exhaust structure to absorb the energy of the valve plate 4 hitting the valve seat 2, more effectively reduce the acting force of the valve plate 4 hitting the valve seat 2 when closing, reduce the impact of the valve plate 4 on the valve seat 2, reduce the compressor noise, and improve the valve plate life and compressor reliability.

[0066] In addition, when the rotary exhaust structure uses a flexible material, it can also utilize the flexible deformation ability of the flexible material to facilitate the installation of the rotary exhaust structure, reduce the installation difficulty of the rotary exhaust structure at the exhaust port 3, and improve the installation efficiency.

[0067] In one embodiment, the rotary exhaust structure is made of silica gel, rubber, plastic, for example, it can be made of PA, PC, PTFE, etc.

[0068] In one embodiment, the rotary exhaust structure is supported by a rigid material, and the rigid material is, for example, Mn-Cu alloy or steel sheet.

[0069] In one embodiment, a ring groove 6 is provided on the inner peripheral wall of the exhaust port 3. The rotary exhaust structure includes a cylinder body 7 and a protrusion 8 provided outside the cylinder body 7 and extending circumferentially. The protrusion 8 is rotatably arranged in the ring groove 6.

[0070] In this embodiment, by providing an annular groove 6 on the inner peripheral wall of the exhaust port 3 and a protrusion 8 outside the cylinder body 7, the protrusion 8 can be arranged in the annular groove 6. The annular groove 6 is used to axially limit the protrusion 8 while not restricting the circumferential rotation of the protrusion 8, ensuring that the impact force of the valve plate 4 hitting the valve seat 2 can drive the rotation of the rotary exhaust structure and absorb the energy generated when the valve plate 4 hits the valve seat 2.

[0071] In one embodiment, the protrusion 8 is an annular shape or a plurality of convex block structures arranged at intervals in the circumferential direction. The shape of the convex block can be arc-shaped, rectangular, trapezoidal or other shapes, ensuring that the protrusion 8 can be stably held in the annular groove 6 in the circumferential direction and at the same time can form a stable rotating structure.

[0072] In one embodiment, when the protrusion 8 is made of a flexible material, when installing the rotary exhaust structure in the exhaust port 3, the protrusion 8 of the rotary exhaust structure can be contracted inward by the extrusion of an external force, so that the protrusion 8 can enter the annular groove 6 of the exhaust port 3 and then return to its original state, thereby being axially limited in the annular groove 6 and at the same time can rotate around the central axis of the exhaust port 3.

[0073] In some embodiments, the protrusion 8 can also be directly installed in the annular groove 6, and then the protrusion 8 is limited in the annular groove 6 by a limiting member such as a snap ring or a cylindrical structure with a circumferential flange.

[0074] In one embodiment, there is a clearance fit between the protrusion 8 and the annular groove 6, which can reduce the resistance during the rotation of the protrusion 8, enabling the rotary exhaust structure to rotate faster, better absorb the energy generated when the valve plate 4 hits the valve seat 2, and reduce the vibration and noise generated when the valve plate 4 hits the valve seat 2.

[0075] In one embodiment, the valve plate 4 is fixed on the valve seat 2, and the front end of the valve plate 4 covers the exhaust port 3, forming a closed cavity with the cylinder compression chamber.

[0076] In one embodiment, there are multiple protrusions 8, and the multiple protrusions 8 are arranged at intervals on the outer periphery of the cylinder body 7.

[0077] In one embodiment, the annular groove 6 is located in the middle of the axial direction of the exhaust port 3. An installation groove penetrating upward from the annular groove 6 is provided on the side wall of the exhaust port 3. An insert block is embedded in the installation groove. After the protrusion 8 is inserted into the annular groove 6 from the installation groove, the insert block stops the protrusion 8 in the annular groove 6.

[0078] In one embodiment, the top surface of the insert block is flush with the top surface of the exhaust port 3, and the bottom surface of the insert block is flush with the side wall of the annular groove 6.

[0079] The installation method of the rotary exhaust structure in this embodiment is applicable not only to rigid materials but also to flexible materials, but is particularly applicable to rigid materials. The circumferential width of the installation groove on the side wall of the exhaust port 3 is greater than or equal to the circumferential width of the protrusion 8, which can ensure that the protrusion 8 of the rotary exhaust structure can smoothly slide into the annular groove 6 through the installation groove. An interference fit is preferably adopted between the insert block and the installation groove, which can ensure a good fixing relationship between the insert block and the installation groove, prevent relative movement and detachment from the installation groove, ensure the structural stability of the annular groove 6, and ensure the motion reliability and stability of the rotary exhaust structure.

[0080] In one embodiment, the annular groove 6 is located in the middle of the exhaust port 3 in the axial direction, the protrusion 8 is arranged corresponding to the annular groove 6, and the top cross-section of the cylinder body 7 is arc-shaped. The top of the cylinder body 7 adopts an arc-shaped structure, which can further reduce the contact area between the valve plate 4 and the rotary exhaust structure, improve the deformation ability of the rotary exhaust structure, and enable the rotary exhaust structure to form a better vibration damping effect.

[0081] In one embodiment, the annular groove 6 is located in the middle of the exhaust port 3 in the axial direction, the protrusion 8 is arranged corresponding to the annular groove 6, and the protrusion 8 is an annular structure.

[0082] In one embodiment, both the protrusion 8 and the top cross-section of the cylinder body 7 are arc-shaped.

[0083] In one embodiment, the annular groove 6 is located in the middle of the exhaust port 3 in the axial direction, the protrusion 8 is arranged corresponding to the annular groove 6, and damping holes 9 or damping grooves 10 are provided at the top of the cylinder body 7. By providing the damping holes 9 or damping grooves 10 at the top of the cylinder body 7, on the one hand, these damping holes 9 or damping grooves 10 can be used to accelerate the rotation speed of the rotary exhaust structure during the process of the valve plate 4 slapping the valve seat 2, improve the ability of the rotary exhaust structure to absorb the slapping energy of the valve plate 4, and on the other hand, the damping holes 9 or damping grooves 10 can be used to improve the flexibility of the top of the cylinder body 7, improve the deformation ability of the top of the cylinder body 7, better absorb the slapping force of the valve plate 4 slapping the valve seat 2, and reduce the vibration and noise of the valve plate 4 slapping the valve seat 2.

[0084] In one embodiment, the annular groove 6 is located at the top and bottom of the exhaust port 3, the protrusion 8 is located at the top and bottom of the cylinder body 7, the protrusion 8 at the top is arranged in the annular groove 6 at the top, and the protrusion 8 at the bottom is arranged in the annular groove 6 at the bottom.

[0085] In one embodiment, the annular groove 6 is located at the top and middle of the exhaust port 3, the protrusion 8 is located at the top and middle of the cylinder body 7, the protrusion 8 at the top is arranged in the annular groove 6 at the top, and the protrusion 8 in the middle is arranged in the annular groove 6 in the middle.

[0086] In one embodiment, the protrusion 8 is an annular protrusion.

[0087] In one embodiment, a damping groove 10 or a damping hole 9 is formed on the end face of the protrusion 8 located at the top of the cylinder body 7 and facing the valve plate 4.

[0088] In one embodiment, the outer diameter of the protrusion 8 is φC, the inner diameter is φA, the outer diameter of the annular groove 6 is φD, and the inner diameter is φB, where φD - φC ≥ 0.2 mm and φB - φA ≥ 0.1 mm, which can ensure a good fit relationship between the protrusion 8 and the annular groove 6. It can form a clearance fit to reduce the rotational resistance between the protrusion 8 and the annular groove 6, and can also prevent excessive clearance from causing radial relative movement between the rotary exhaust structure and the exhaust port 3, resulting in a reduction in the energy absorption capacity of the rotary exhaust structure.

[0089] In one embodiment, the annular groove 6 is located in the middle of the axial direction of the exhaust port 3, the protrusion 8 is arranged corresponding to the annular groove 6, and the axial clearance between the protrusion 8 and the annular groove 6 is δ, where δ ≥ 0.1 mm. This can prevent excessive axial clearance between the protrusion 8 and the annular groove 6 from causing axial relative movement between the two, which has an adverse effect on the vibration and noise reduction ability of the rotary exhaust structure, and can also prevent the annular groove 6 from forming a large frictional resistance to the rotation of the protrusion 8, ensuring the rotational vibration and noise reduction ability of the rotary exhaust structure.

[0090] In one embodiment, the rotary exhaust structure has a damping coating; and / or, damping material is added inside the rotary exhaust structure, which can further enhance the vibration and noise reduction ability of the rotary exhaust structure.

[0091] The operating principle of the compressor using the above exhaust valve assembly is as follows:

[0092] After the compressor is powered on and started, the low-temperature and low-pressure refrigerant enters the compressor pump body from the suction port of the cylinder, and performs suction, compression, and exhaust under the combined action of the exhaust valve assembly, upper flange, roller, crankshaft, sliding vane, cylinder, and lower flange.

[0093] In one compression cycle, when the refrigerant inside the pump body reaches the condensation pressure, it enters the compressor housing through the rotary exhaust structure and the exhaust port 3. During the above exhaust process, under the action of the refrigerant pressure difference, the valve plate 4 is pushed upward to the lift limiter 11.

[0094] As the crankshaft continues to rotate, the high-temperature and high-pressure refrigerant is gradually discharged from the pump body through the rotary exhaust structure, and the internal pressure of the pump body will gradually decrease. Under the combined action of the refrigerant pressure difference and the valve plate spring force, the valve plate 4 moves downward until it closes the refrigerant flow hole 5 of the rotary exhaust structure. During the above closing process, the valve plate 4 will strike the rotary exhaust structure. Since the direction of the force acting on the valve plate 4 is complex and variable, when the valve plate 4 strikes the rotary exhaust structure, various directional forces such as tangential force and axial force will be generated, resulting in different degrees of flutter and rotation of the rotary exhaust structure, consuming part of the striking energy, thereby reducing the striking force of the valve plate 4, reducing the noise of the compressor, improving the listening experience, and extending the service life of the valve plate 4.

[0095] According to an embodiment of the present application, the compressor includes an exhaust valve assembly, and the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0096] According to an embodiment of the present application, the air conditioner includes an exhaust valve assembly, and the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0097] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0098] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the technical principle of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. An exhaust valve assembly, characterized in that, It includes a flange (1) and an exhaust assembly. The flange (1) is provided with a valve seat (2), the valve seat (2) is provided with an exhaust port (3), the exhaust assembly is arranged on the valve seat (2), the exhaust assembly includes a valve disc (4) capable of closing the exhaust port (3), a rotary exhaust structure is arranged in the exhaust port (3), a refrigerant flow hole (5) is arranged on the rotary exhaust structure, the rotary exhaust structure is axially limited in the exhaust port (3), and when the valve disc (4) strikes the valve seat (2), a tangential force can be given to the rotary exhaust structure, so that the rotary exhaust structure rotates relative to the exhaust port (3).

2. The exhaust valve assembly according to claim 1, characterized in that, The rotary exhaust structure rotates around the central axis of the exhaust port (3).

3. The exhaust valve assembly according to claim 1, characterized in that, The rotary exhaust structure is made of flexible material.

4. The exhaust valve assembly according to claim 1, characterized in that, The rotary exhaust structure is made of rigid material.

5. The exhaust valve assembly according to claim 1, characterized in that A ring groove (6) is arranged on the inner peripheral wall of the exhaust port (3). The rotary exhaust structure includes a cylinder body (7) and a protrusion (8) arranged outside the cylinder body (7) and extending circumferentially. The protrusion (8) is rotatably arranged in the ring groove (6).

6. The exhaust valve assembly according to claim 5, wherein, There are multiple protrusions (8), and the multiple protrusions (8) are arranged at intervals along the outer periphery of the cylinder body (7).

7. The exhaust valve assembly according to claim 6, characterized in that, The ring groove (6) is located in the middle of the axial direction of the exhaust port (3). An installation groove penetrating upward from the ring groove (6) is arranged on the side wall of the exhaust port (3). An insert block is embedded in the installation groove. After the protrusion (8) is inserted into the ring groove (6) from the installation groove, the insert block stops the protrusion (8) in the ring groove (6).

8. The exhaust valve assembly according to claim 7, wherein, The top surface of the insert block is flush with the top surface of the exhaust port (3), and the bottom surface of the insert block is flush with the side wall of the ring groove (6).

9. The exhaust valve assembly according to claim 6, wherein, The ring groove (6) is located in the middle of the axial direction of the exhaust port (3). The protrusion (8) is arranged corresponding to the ring groove (6), and the top section of the cylinder body (7) is arc-shaped.

10. The exhaust valve assembly according to claim 5, characterized in that, The ring groove (6) is located in the middle of the axial direction of the exhaust port (3). The protrusion (8) is arranged corresponding to the ring groove (6), and the protrusion (8) is of an annular structure.

11. The exhaust valve assembly according to claim 10, characterized in that, The top sections of the protrusion (8) and the cylinder body (7) are both arc-shaped.

12. The exhaust valve assembly according to claim 5, characterized in that, The ring groove (6) is located in the middle of the axial direction of the exhaust port (3). The protrusion (8) is arranged corresponding to the ring groove (6), and a damping hole (9) or a damping groove (10) is arranged at the top of the cylinder body (7).

13. The exhaust valve assembly according to claim 5, wherein, The ring groove (6) is located at the top and bottom of the exhaust port (3), and the protrusion (8) is located at the top and bottom of the cylinder body (7). The protrusion (8) at the top is arranged in the ring groove (6) at the top, and the protrusion (8) at the bottom is arranged in the ring groove (6) at the bottom.

14. The exhaust valve assembly according to claim 5, wherein The ring groove (6) is located at the top and middle of the exhaust port (3), and the protrusion (8) is located at the top and middle of the cylinder body (7). The protrusion (8) at the top is arranged in the ring groove (6) at the top, and the protrusion (8) at the middle is arranged in the ring groove (6) at the middle.

15. The exhaust valve assembly according to claim 13 or 14, characterized in that, The protrusion (8) is an annular protrusion.

16. The exhaust valve assembly according to claim 15, characterized in that, A damping groove (10) or a damping hole (9) is formed on an end surface of the protrusion (8) located at the top of the cylinder body (7) and facing the valve disc (4).

17. The exhaust valve assembly according to claim 5, characterized in that, The outer diameter of the protrusion (8) is φC, and the inner diameter is φA. The outer diameter of the annular groove (6) is φD, and the inner diameter is φB, where φD - φC ≥ 0.2 mm and φB - φA ≥ 0.1 mm.

18. The exhaust valve assembly according to claim 5, wherein, The annular groove (6) is located in the middle of the axial direction of the exhaust port (3). The protrusion (8) is arranged corresponding to the annular groove (6), and the axial gap between the protrusion (8) and the annular groove (6) is δ, and δ ≥ 0.1 mm.

19. The exhaust valve assembly according to claim 1, characterized in that, The rotary exhaust structure has a damping coating; and / or, damping material is added inside the rotary exhaust structure.

20. A compressor, characterized in that, It includes an exhaust valve assembly, and the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 19.

21. An air conditioner, characterized in that, It includes an exhaust valve assembly, and the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 19.

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