Exhaust valve components, compressors and air conditioners

Abstract

The present application provides an exhaust valve assembly, a compressor and an air conditioner. The exhaust valve assembly comprises a flange (1) and an exhaust assembly, wherein 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 comprises a valve plate (4) capable of closing the exhaust port (3), an oil storage tank (5) is arranged on the peripheral side of the exhaust port (3), the oil storage tank (5) is filled with oil, and the valve plate (4) can cover the oil storage tank (5). According to the exhaust valve assembly of the present application, the vibration caused by the impact force of the valve plate can be effectively reduced, thereby reducing the noise of the compressor.

Description

Technical Field

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

[0002] The exhaust structure used in the compressor includes an exhaust valve plate, a lift limiter, rivets and an exhaust valve seat. The exhaust valve seat is generally set on a flange; the exhaust valve plate is generally made of elastic metal material, one end of which is fixed to the exhaust valve seat together with the lift limiter through rivets, and the other end covers the arc head of the exhaust port to seal the exhaust port; one end of the lift limiter is a straight part, which is fixed to the exhaust valve seat together with one end of the exhaust valve plate to press the exhaust valve plate, and the other end is tilted to a certain arc to limit the maximum opening of the exhaust valve plate and protect the exhaust valve plate to prevent it from breaking.

[0003] When the compressor is running, due to the limitations of the rivets and its own stiffness, the exhaust valve plate has a certain pre-tightening force. When the pressure P1 in the compression chamber is greater than the pressure P2 outside the pump body, the head of the exhaust valve plate covering the arc head will open under the action of a large pressure difference, and the compression chamber begins to exhaust. At the beginning of exhaust, under the impact of the large flow rate of refrigerant and the pressure difference, the head of the exhaust valve plate will continue to rise until it fits the lift limiter; at the end of exhaust, since the volume of the cavity changes very little, the flow rate at the exhaust port will continue to decrease, and the impact on the exhaust valve plate will continue to decrease. Under the action of its own elastic force, the exhaust valve plate will cover the exhaust port again, and the gas outside the pump body will not flow back into the compression chamber, realizing the unidirectional movement of the refrigerant.

[0004] Under normal circumstances, the exhaust valve will be completely closed before the exhaust port is connected to the next cavity. However, when the compressor speed is very fast, it is easy for the exhaust valve to close late.

[0005] The phenomenon of delayed closing of the exhaust valve: the exhaust of the previous cavity has been completed, but the exhaust valve has not been completely closed, resulting in the exhaust valve closing only when the exhaust port is connected to the relatively low-pressure cavity behind.

[0006] When the exhaust valve of the compressor is delayed in closing, the exhaust port is in a relatively low-pressure state (not reaching the exhaust pressure), while P2 on the outside of the valve is still the exhaust pressure. Under the action of the relatively high pressure difference between the inside and outside of the compression chamber and its own elasticity, the exhaust valve re-covers the exhaust port from a higher position, which will generate a large impact force, hitting the exhaust valve seat, flange and exhaust valve plate, all of which will generate large vibrations, affecting the noise of the compressor.

[0007] At the same time, the exhaust valve plate and the exhaust valve seat are made of the same metal material. The exhaust valve plate is closed under the action of the impact force, and a large contact stress will be generated when its head contacts the exhaust valve seat. The head of the exhaust valve plate is at risk of breaking, which will reduce the service life of the exhaust valve plate, affect the normal operation of the compressor, and reduce the reliability of the compressor.

[0008] Therefore, designing an effective and structurally simple vibration reduction form for the exhaust valve plate is one of the effective ways in the art to improve the reliability of the compressor and reduce the noise of the compressor. Summary of the invention

[0009] 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 effectively reduce the vibration caused by the impact force of the valve plate and reduce the noise of the compressor.

[0010] In order 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 sheet capable of closing the exhaust port, an oil storage tank is provided on the peripheral side of the exhaust port, the oil storage tank is filled with oil, and the valve sheet can cover the oil storage tank.

[0011] Preferably, an annular protrusion is provided on the peripheral side of the exhaust port, the annular protrusion is located on the bottom surface of the valve seat, and the oil storage groove is located on the annular protrusion.

[0012] Preferably, the oil storage groove is an annular groove extending along the circumference of the annular protrusion.

[0013] Preferably, an oil through hole for introducing oil into the oil storage tank is provided on the side wall of the valve seat.

[0014] Preferably, an accommodating chamber is formed between the outer peripheral wall of the annular protrusion and the side wall of the valve seat, and the accommodating chamber can be connected with the oil storage tank when the valve plate closes the exhaust port. An oil drain hole is provided on the side wall of the valve seat, and the oil drain hole is connected with the accommodating chamber to guide the oil in the accommodating chamber out of the accommodating chamber.

[0015] Preferably, the oil drain hole extends obliquely downward in a direction away from the accommodating chamber.

[0016] Preferably, the height of the annular protrusion relative to the bottom surface of the valve seat is h, and the height of the inlet of the oil drain hole relative to the bottom surface of the valve seat is h1, and 0≤h1≤h.

[0017] Preferably, the radial thickness of the annular protrusion on the inner circumference side of the oil storage tank is t1, t1 ≥ 1 mm; and / or the radial thickness of the annular protrusion on the outer circumference side of the oil storage tank is t2, t2 ≥ 1.5 mm.

[0018] Preferably, the side wall of the oil storage tank is provided with an oil outlet hole, and the oil outlet hole communicates with the oil storage tank and the accommodating cavity.

[0019] Preferably, the oil outlet hole is connected to the bottom, middle or upper part of the oil storage tank.

[0020] Preferably, the cross-sectional area of ​​the oil through hole is S1, the cross-sectional area of ​​the oil outlet hole is S2, and S2 ≥ S1.

[0021] Preferably, the side wall of the oil storage tank is provided with an oil outlet hole, and the oil outlet hole and the oil drain hole are connected to the outside of the side wall of the valve seat after intersecting with the side wall of the valve seat.

[0022] Preferably, the side wall of the oil storage tank is provided with an oil outlet hole, and the oil outlet hole and the oil drain hole are independently connected to the outside of the side wall of the valve seat.

[0023] Preferably, the side wall of the oil storage tank close to the exhaust port is a vertical side wall, and the side wall of the oil storage tank away from the exhaust port has a diversion structure for diverting the oil to the accommodating cavity.

[0024] Preferably, the side wall of the oil storage tank away from the exhaust port is an inclined side wall; or, the side wall of the oil storage tank away from the exhaust port is an arc-shaped side wall.

[0025] According to another aspect of the present application, a compressor is provided, comprising an exhaust valve assembly, wherein the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0026] According to another aspect of the present application, an air conditioner is provided, comprising an exhaust valve assembly, which is the above-mentioned exhaust valve assembly.

[0027] The exhaust valve assembly provided by the present application includes a flange and an exhaust assembly, wherein the flange is provided with a valve seat, the valve seat is provided with an exhaust port, the exhaust assembly is provided on the valve seat, the exhaust assembly includes a valve plate capable of closing the exhaust port, an oil storage tank is provided around the exhaust port, the oil storage tank is filled with oil, and the valve plate can cover the oil storage tank. The exhaust valve assembly is provided with an oil storage tank around the exhaust port, the oil storage tank is isolated from the exhaust port, and when the valve plate hits the valve seat, the fluidity of the oil in the oil storage tank can be used to absorb and consume the energy of the valve plate hitting the valve seat, thereby reducing the vibration effect of the valve plate hitting the valve seat, effectively reducing the vibration caused by the valve plate hitting force, and reducing the noise of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of an exhaust valve assembly according to an embodiment of the present application;

[0030] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at Y;

[0031] Figure 4This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0032] Figure 5 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application when the valve plate is open;

[0033] Figure 6 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application when the valve plate is closed;

[0034] Figure 7 This is a schematic diagram of the size and structure of an exhaust valve assembly according to an embodiment of the present application;

[0035] Figure 8 This is a schematic diagram of the size and structure of an exhaust valve assembly according to an embodiment of the present application;

[0036] Fig. 9 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0037] Fig.10 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0038] Fig.11 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0039] Fig.12 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0040] Fig.13 This is a schematic structural diagram of an exhaust valve assembly according to an embodiment of the present application;

[0041] Fig.14 This is a noise comparison diagram between a compressor according to an embodiment of the present application and a compressor in the related art.

[0042] The reference numerals are:

[0043] 1. Flange; 2. Valve seat; 3. Exhaust port; 4. Valve plate; 5. Oil storage tank; 6. Annular protrusion; 7. Accommodating cavity; 8. Oil through hole; 9. Oil drain hole; 10. Oil outlet hole; 11. Lift limiter; 12. Spindle; 13. Spindle oil hole. DETAILED DESCRIPTION

[0044] See also Figures 1 to 14 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 plate 4 capable of closing the exhaust port 3, an oil storage tank 5 is provided on the peripheral side of the exhaust port 3, the oil storage tank 5 is filled with oil, and the valve plate 4 can cover the oil storage tank 5.

[0045] The exhaust valve assembly is provided with an oil storage tank 5 on the peripheral side of the exhaust port 3, and the oil storage tank 5 is isolated from the exhaust port 3. When the valve plate 4 hits the valve seat 2, the fluidity of the oil in the oil storage tank 5 can be used to absorb and consume the energy of the valve plate 4 hitting the valve seat 2, thereby reducing the vibration effect of the valve plate 4 hitting the valve seat 2, effectively reducing the vibration caused by the hitting force of the valve plate 4, and reducing the noise of the compressor.

[0046] The embodiment of the present application adopts a refrigeration oil vibration reduction method and designs a corresponding structure. Without adding parts and only changing the existing structure, it can effectively reduce the vibration caused by the valve plate 4 hitting the valve seat 2, without affecting the performance of the compressor while reducing the noise of the compressor, reducing the contact stress when the valve plate 4 is closed, reducing the risk of valve plate 4 breaking, and improving the service life of the valve plate 4 and the reliability of the compressor.

[0047] In one embodiment, an annular protrusion 6 is provided around the exhaust port 3, the annular protrusion 6 is located on the bottom surface of the valve seat 2, and the oil storage tank 5 is located on the annular protrusion 6. In this embodiment, by designing the annular protrusion 6, the deformation ability of the annular protrusion 6 can be combined with the flow ability of the oil to further reduce the vibration energy of the valve plate 4 hitting the valve seat 2 and reduce the vibration noise. In addition, the design of the annular protrusion 6 can enable the oil in the oil storage tank 5 to better absorb the hitting effect of the valve plate 4, thereby achieving a more obvious vibration reduction and noise reduction effect.

[0048] In one embodiment, there can be multiple oil storage tanks 5, which are arranged at circumferential intervals along the annular protrusion 6. Each oil storage tank 5 is filled with oil. The multiple oil storage tanks 5 work together to achieve vibration reduction and noise reduction effects on the impact force of the valve plate 4 hitting the valve seat 2.

[0049] In one embodiment, the oil storage tank 5 is an annular groove extending along the circumference of the annular protrusion 6. In this embodiment, the top of the oil storage tank 5 is open, so that the oil in the oil storage tank 5 can reach the top surface of the annular protrusion 6. When the valve plate slaps the valve seat 2, the valve plate 4 does not directly slap the valve seat 2, but slaps the oil. The fluidity of the oil absorbs the vibration generated by the slapping force of the valve plate 4, and the vibration transmitted to the flange 1 is weakened, thereby reducing the noise of the compressor.

[0050] The metal valve plate 4 contacts the liquid refrigeration oil when closed, which reduces the contact stress when the valve plate 4 is closed. The contact area is relatively large, which avoids stress concentration, reduces the risk of valve plate 4 breaking, and improves the service life of the valve plate 4 and the reliability of the compressor.

[0051] An annular protrusion 6 is arranged at the top of the exhaust port 3, and an annular oil storage groove 5 is arranged on the annular protrusion 6. The oil storage groove 5 divides the annular protrusion 6 into an inner side of the protrusion close to the exhaust port and an outer side of the protrusion far from the exhaust port. Flowable refrigerant oil is introduced into the oil storage groove 5.

[0052] In one embodiment, an oil through hole 8 for introducing oil into the oil storage tank 5 is provided on the side wall of the valve seat 2. In this embodiment, the oil through hole 8 can be connected with the main shaft oil hole 13 on the main shaft 12, so that the oil in the main shaft oil hole 13 is used to supply oil to the oil storage tank 5, thereby ensuring the oil height in the oil storage tank 5.

[0053] An oil hole is arranged in the radial direction of the flange 1 to guide the refrigerant oil at the matching position of the main shaft 12 and the flange 1 into the oil storage tank 5. As the main shaft 12 rotates, the oil hole 8 can supply the oil storage tank 5 with a continuous supply of refrigerant oil. After the oil storage tank 5 is filled with the refrigerant oil, the refrigerant oil will overflow from the oil storage tank 5. At this time, relatively stable refrigerant oil will continuously flow out from the top of the oil storage tank 5, ensuring that when the valve plate 4 is closed, the top of the oil storage tank 5 is in a state of oil, so that the valve plate 4 hits the refrigerant oil, which has a vibration reduction effect.

[0054] In one embodiment, a accommodating chamber 7 is formed between the outer peripheral wall of the annular protrusion 6 and the side wall of the valve seat 2. The accommodating chamber 7 can be connected to the oil storage tank 5 when the valve plate 4 closes the exhaust port 3. An oil drain hole 9 is provided on the side wall of the valve seat 2. The oil drain hole 9 is connected to the accommodating chamber 7 to guide the oil in the accommodating chamber 7 out of the accommodating chamber 7.

[0055] When the valve plate 4 is closed, it is generally the suction or compression stage of the compressor. The outer side of the valve plate 4 is in a high-pressure state, and the exhaust port 3 is in a low-pressure state. Since the refrigerant oil is still flowing into the oil storage tank 5, the valve plate 4 will be lifted up by the refrigerant oil, which may cause gas backflow. Therefore, the accommodating chamber 7 of the embodiment of the present application can be connected with the oil storage tank 5 when the valve plate 4 closes the exhaust port 3. When the valve plate 4 is opened, the flow area at the top of the oil storage tank 5 is larger for the flow of the refrigerant oil in the oil storage tank 5, so it flows out from the top of the oil storage tank 5 first; when the valve plate 4 is closed, since the valve plate 4 itself has a certain pre-tightening force and there is also the effect of the pressure difference between the inside and outside of the exhaust port 3, the flow resistance is very large, so the refrigerant oil flows out from the connecting channel between the accommodating chamber 7 and the oil storage tank 5 with relatively smaller resistance, avoiding the valve plate 4 from being pushed open, thereby effectively avoiding the problem of oil backflow.

[0056] In addition, the key to the embodiment of the present application is to ensure that the top of the oil storage tank 5 has refrigerant oil flowing when the valve plate 4 is closed. However, as the main shaft 12 rotates, the refrigerant oil continuously flows into the oil storage tank 5, and then flows out of the oil storage tank 5 to the valve seat 2. When there is too much refrigerant oil in the accommodating cavity 7 of the valve seat 2, the flow of the refrigerant oil will be blocked, which may affect the refrigerant oil vibration reduction effect. In addition, the refrigerant oil accumulated in the accommodating cavity 7 of the valve seat 2 may flood the valve plate 4 when the valve plate 4 is closed, increase the resistance of the valve plate 4 to open, and affect the performance of the compressor. Therefore, an oil drain hole 9 is set on the side of the valve seat 2, so that the refrigerant oil accumulated on the valve seat 2 can be discharged in time.

[0057] In one embodiment, the side wall of the oil storage tank 5 is provided with an oil outlet hole 10, and the oil outlet hole 10 connects the oil storage tank 5 and the accommodating chamber 7. In this embodiment, the oil storage tank 5 is connected with the accommodating chamber 7 through the oil outlet hole 10, so that when the valve plate 4 closes the oil storage tank 5, the oil can still be discharged from the oil storage tank 5 from the oil outlet hole 10, effectively preventing the oil from pushing the valve plate 4 open and flowing back into the exhaust port 3. The refrigerant oil enters the matching position of the main shaft 12 and the flange 1 from the main shaft oil hole 13 on the side of the main shaft 12, and enters the oil storage tank 5 on the valve seat 2 through the radial oil hole 8 of the flange, and gradually fills the oil storage tank 5. Although the side oil outlet hole 10 is provided on the side wall of the oil storage tank 5, the refrigerant oil at the position of the oil outlet hole 8 is affected by the rotation speed of the main shaft 12. When the rotation speed of the main shaft 12 is faster, its flow rate is larger than that of the oil outlet hole 10, so the oil storage tank 5 will eventually be filled.

[0058] The cross-sectional shape of the oil storage tank 5 on the valve seat 2 is not fixed, and can be circular, rectangular, triangular, etc.; the shape, number and position of the oil through hole 8 of the oil storage tank 5 are not fixed, as long as it is connected to the oil circuit structure of the compressor; the shape, size and number of the oil outlet hole 10 of the oil storage tank 5 are not fixed, and the form is also not fixed. It can be a hole connected to the valve seat 2, and the oil is discharged onto the valve seat 2 and then discharged from the oil discharge hole 9 on the valve seat 2. It can also be connected to the oil discharge hole 9 on the valve seat 2 or directly connected to the hole on the outside of the flange, and the oil is directly discharged without passing through the valve seat 2.

[0059] In one embodiment, the oil drain hole 9 extends obliquely downward in a direction away from the accommodating chamber 7. In this embodiment, the oil drain hole 9 extends obliquely downward in the oil draining direction, so it is more convenient to discharge the oil from the accommodating chamber 7 to the outside of the valve seat 2 or the flange 1, and avoid the oil from being concentrated in the accommodating chamber 7.

[0060] When the valve plate 4 is opened, most of the refrigerant oil is discharged from the oil storage tank 5 through the top of the oil storage tank 5 and flows into the accommodating cavity 7 of the valve seat 2. A small part of the refrigerant oil flows directly into the accommodating cavity 7 of the valve seat 2 through the oil outlet hole 10. The refrigerant oil flowing in the above two paths is continuously accumulated on the valve seat 2. When the liquid level reaches the position of the oil discharge hole 9, it is discharged to the outside of the flange 1 through the oil discharge hole 9 and returns to the compressor oil pool. Part of the refrigerant oil at the top of the oil storage tank 5 will also have a tendency to flow toward the inner exhaust port 3. However, since the refrigerant has been flowing out of the exhaust port 3 after the valve plate 4 is opened, the part of the refrigerant oil that has a tendency to flow into the exhaust port 3 will be blown to the outside of the oil storage tank 5. Therefore, when the valve plate 4 is opened, the refrigerant oil will not enter the exhaust port 3.

[0061] When the valve plate 4 is closed, since the valve plate 4 itself has a certain pre-tightening force and there is also the effect of the pressure difference between the inside and outside of the exhaust port 3, that is, P2>P1, the flow resistance is very large. At this time, the refrigerant oil preferentially flows out from the oil outlet hole 10 on the side with relatively smaller resistance and reaches the accommodating cavity 7 of the valve seat 2. When the liquid level reaches the position of the oil drain hole 9, it is discharged to the outside of the flange through the oil drain hole 9 and returns to the compressor oil pool.

[0062] In one embodiment, the height of the annular protrusion 6 relative to the bottom surface of the valve seat 2 is h, and the height of the inlet of the oil drain hole 9 relative to the bottom surface of the valve seat 2 is h1, 0≤h1≤h. In this embodiment, the oil drain hole 9 can be directly set on the bottom surface of the valve seat 2, that is, h1=0, at this time, there is basically no oil in the accommodating cavity 7 of the valve seat 2; it can also be higher than the bottom surface of the valve seat 2, that is, h1>0; at the same time, if the oil drain hole 9 is set too high, it may not be able to achieve the effect of effective oil drainage. In order to avoid the refrigeration oil from flooding the valve plate 4, increasing the opening resistance of the valve plate 4 and affecting the performance of the compressor, the height h1 of the oil drain hole 9 needs to be less than or equal to h, that is, h1≤h, and finally 0≤h1≤h.

[0063] In one embodiment, the radial thickness of the annular protrusion 6 on the inner peripheral side of the oil storage tank 5 is t1, t1 ≥ 1 mm; and / or the radial thickness of the annular protrusion 6 on the outer peripheral side of the oil storage tank 5 is t2, t2 ≥ 1.5 mm.

[0064] When the valve plate 4 is opened, under the action of high-speed refrigerant, the refrigerant oil on the inner side of the protrusion will be blown to the outer side of the oil storage tank 5. There is very little refrigerant oil on it, and the highest refrigerant oil level in the oil storage tank 5 can only reach the surface of the inner side of the protrusion. If the outer diameter of the oil storage tank 5 is larger than the head diameter of the valve plate 4, the upper surface of the inner side of the protrusion that the valve plate 4 first contacts when it is closed will be oil-free, and there will definitely be no vibration reduction effect. Therefore, it is necessary to make the outer diameter D4 of the oil storage tank 5 smaller than the head diameter D3 of the valve plate 4, D4<D3. Since the inner and outer sides of the protrusion must simultaneously support the head of the valve plate 4 after the valve plate 4 is closed, the outer width t2 of the protrusion needs to be greater than or equal to 1.5mm, that is, t2≥1.5mm. In addition, the inner side of the protrusion is the exhaust port 3. When exhausting, the high-speed airflow will produce a large impact force on the inner wall of the exhaust port 3, that is, the inner side of the protrusion. Therefore, the inner side of the protrusion needs a certain thickness to ensure reliability. In theory, the width t1 of the inner side of the protrusion needs to be greater than or equal to 1mm, that is, t1≥1mm. In one embodiment, the oil outlet 10 is connected to the bottom, middle or upper part of the oil storage tank 5.

[0065] In one embodiment, the cross-sectional area of ​​the oil through hole 8 is S1, the cross-sectional area of ​​the oil outlet hole 10 is S2, and S2 ≥ S1.

[0066] In order to ensure that the refrigeration oil will not push the valve plate 4 open after the valve plate 4 is closed, that is, after the valve plate 4 is closed, the oil inlet volume must be less than or equal to the oil outlet volume, so S2 ≥ S1. For the structure in which both the oil through hole 8 and the oil outlet hole 10 are circular holes, the oil through hole diameter D1 ≤ the oil outlet hole diameter D2.

[0067] In one embodiment, the side wall of the oil storage tank 5 is provided with an oil outlet hole 10 , and the oil outlet hole 10 and the oil drain hole 9 are connected to the outside of the side wall of the valve seat 2 after intersecting with the side wall of the valve seat 2 .

[0068] In one embodiment, the side wall of the oil storage tank 5 is provided with an oil outlet hole 10 , and the oil outlet hole 10 and the oil drain hole 9 are independently connected to the outside of the side wall of the valve seat 2 .

[0069] The above-mentioned arrangement structure of the oil outlet hole 10 can effectively reduce the oil storage in the accommodating cavity 7 of the valve seat 2, so that the flow of the refrigeration oil is smoother.

[0070] In one embodiment, the side wall of the oil storage tank 5 close to the exhaust port 3 is a vertical side wall, and the side wall of the oil storage tank 5 away from the exhaust port 3 has a diversion structure for diverting the oil to the accommodating chamber 7. By providing the diversion structure, the refrigerant oil can flow out from the outside of the oil storage tank 5 more easily, thereby effectively reducing the tendency of the oil to flow into the exhaust port 3.

[0071] See also Fig.14 It can be seen that after adopting the refrigeration oil solution of the embodiment of the present application, the high-frequency noise of the compressor is significantly reduced and the vibration reduction effect is better.

[0072] In one embodiment, the side wall of the oil storage tank 5 away from the exhaust port 3 is an inclined side wall.

[0073] In one embodiment, the side wall of the oil storage tank 5 away from the exhaust port 3 is an arc-shaped side wall.

[0074] In one embodiment, the exhaust valve assembly further includes a lift limiter 11, which is fixed to the valve seat 2 together with the valve plate 4 by riveting. The lift limiter 11 is used to limit the lifting height of the valve plate 4, thereby effectively protecting the valve plate 4.

[0075] According to an embodiment of the present application, the compressor includes an exhaust valve assembly, which is the exhaust valve assembly mentioned above.

[0076] According to an embodiment of the present application, the air conditioner includes an exhaust valve assembly, which is the above-mentioned exhaust valve assembly.

[0077] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0078] The above are only 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 principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An exhaust valve assembly, characterized in that: The invention comprises a flange (1) and an exhaust assembly, wherein 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 comprises a valve plate (4) capable of closing the exhaust port (3), an oil storage tank (5) is arranged on the peripheral side of the exhaust port (3), the oil storage tank (5) is filled with oil, and the valve plate (4) is capable of covering the oil storage tank (5); An annular protrusion (6) is provided on the circumferential side of the exhaust port (3), the annular protrusion (6) is located on the bottom surface of the valve seat (2), and the oil storage tank (5) is located on the annular protrusion (6); an accommodating chamber (7) is formed between the outer peripheral wall of the annular protrusion (6) and the side wall of the valve seat (2), and the accommodating chamber (7) can be communicated with the oil storage tank (5) when the valve plate (4) closes the exhaust port (3); an oil discharge hole (9) is provided on the side wall of the valve seat (2), and the oil discharge hole (9) is communicated with the accommodating chamber (7) to guide the oil in the accommodating chamber (7) out of the accommodating chamber (7); an oil through hole (8) is provided on the side wall of the valve seat (2) for introducing the oil into the oil storage tank (5), and the oil through hole (8) is communicated with the main shaft oil hole (13) on the main shaft (12).

2. The exhaust valve assembly according to claim 1, characterized in that The oil storage groove (5) is an annular groove extending along the circumference of the annular protrusion (6).

3. The exhaust valve assembly according to claim 1, characterized in that The oil drain hole (9) extends obliquely downward in a direction away from the accommodating chamber (7).

4. The exhaust valve assembly according to claim 3, characterized in that The height of the annular protrusion (6) relative to the bottom surface of the valve seat (2) is h, and the height of the inlet of the oil drain hole (9) relative to the bottom surface of the valve seat (2) is h1, 0≤h1≤h.

5. The exhaust valve assembly according to claim 2, characterized in that The radial thickness of the annular protrusion (6) on the inner peripheral side of the oil storage groove (5) is t1, t1 ≥ 1 mm; and / or the radial thickness of the annular protrusion (6) on the outer peripheral side of the oil storage groove (5) is t2, t2 ≥ 1.5 mm.

6. The exhaust valve assembly according to claim 1, characterized in that An oil outlet hole (10) is provided on the side wall of the oil storage tank (5), and the oil outlet hole (10) communicates with the oil storage tank (5) and the accommodating chamber (7).

7. The exhaust valve assembly according to claim 6, characterized in that The oil outlet hole (10) is connected to the bottom, middle or upper part of the oil storage tank (5).

8. The exhaust valve assembly according to claim 6, characterized in that The cross-sectional area of ​​the oil through hole (8) is S1, the cross-sectional area of ​​the oil outlet hole (10) is S2, and S2 ≥ S1.

9. The exhaust valve assembly according to claim 1, characterized in that The side wall of the oil storage tank (5) is provided with an oil outlet hole (10), and the oil outlet hole (10) and the oil drain hole (9) are connected to the outside of the side wall of the valve seat (2) after intersecting the side wall of the valve seat (2). The oil outlet hole (10) is connected to the oil storage tank (5) and the accommodating chamber (7).

10. The exhaust valve assembly according to claim 1, characterized in that The side wall of the oil storage tank (5) is provided with an oil outlet hole (10), the oil outlet hole (10) and the oil drain hole (9) are each independently connected to the outside of the side wall of the valve seat (2), and the oil outlet hole (10) is connected to the oil storage tank (5) and the accommodating chamber (7).

11. The exhaust valve assembly according to claim 1, characterized in that The side wall of the oil storage tank (5) close to the exhaust port (3) is a vertical side wall, and the side wall of the oil storage tank (5) away from the exhaust port (3) has a diversion structure for diverting oil to the accommodating chamber (7).

12. The exhaust valve assembly according to claim 11, characterized in that The side wall of the oil storage tank (5) away from the exhaust port (3) is an inclined side wall.

13. A compressor, characterized in that: The invention comprises an exhaust valve assembly, wherein the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 12.

14. An air conditioner, characterized in that: The invention comprises an exhaust valve assembly, wherein the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 12.

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