Exhaust valve, bearing assembly, compressor and air conditioner
By designing a combination of the deformation section and limiter of the exhaust valve plate, the problem of poor valve plate sealing was solved, resulting in better sealing effect and noise reduction, thus improving the performance of the compressor.
Patent Information
- Application Number
- CN202520043169.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The existing valve plate does not seal well when the exhaust port is closed, causing compressor noise and vibration problems.
An exhaust valve is designed, including a valve seat, an exhaust valve plate, and a limiter. The deformable section of the exhaust valve plate is bent toward the exhaust port to provide a clamping force. The limiter restricts the opening angle of the valve plate and is fixed by a locking member. The limiter is combined with the valve plate to buffer and support the movement of the exhaust valve plate.
It improves the sealing performance of the exhaust port, reduces the impact force when the valve plate closes, reduces noise and vibration, and improves aerodynamic characteristics and exhaust efficiency.
Smart Images
Figure CN223622270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to an exhaust valve, bearing assembly, compressor, and air conditioner. Background Technology
[0002] In modern air conditioning systems, the compressor plays a crucial role, affecting not only the performance of the air conditioner but also directly impacting user comfort. As the heart of the refrigeration system, the compressor's primary function is to compress the refrigerant and circulate it. During operation, as the rotor rotates, the pressure within the compression chamber gradually increases. When the pressure reaches the discharge pressure, the valve opens under the impact of the gas, thus expelling the high-pressure gas from the compression chamber. However, existing valves do not provide a good seal when closing the discharge port. Utility Model Content
[0003] The main purpose of this invention is to provide an exhaust valve, bearing assembly, compressor, and air conditioner, which aims to improve the sealing performance of the valve plate when closing the exhaust port.
[0004] To achieve the above objectives, this utility model provides an exhaust valve, which includes:
[0005] Valve seat, wherein the valve seat is provided with an exhaust port;
[0006] An exhaust valve plate having a first mounting section and a deformation section, the deformation section being configured to open or close the exhaust port, the first mounting section being connected to the valve seat, and the deformation section being bent toward the exhaust port; and
[0007] A limiter is provided on the side of the exhaust valve plate away from the exhaust port and has a second mounting section and a first limiting section. The second mounting section is connected to the valve seat. The end of the deformation section away from the first mounting section and the end of the first limiting section away from the second mounting section are spaced apart.
[0008] In one embodiment, the exhaust valve further includes a limiting valve plate, which is disposed between the exhaust valve plate and the limiter and has a third mounting section and a second limiting section. The third mounting section is connected to the valve seat, and the end of the deformation section away from the first mounting section, the end of the first limiting section away from the second mounting section, and the end of the second limiting section away from the third mounting section are spaced apart from each other.
[0009] In one embodiment, the second limiting segment bends away from the exhaust port, and the first limiting segment bends away from the exhaust port.
[0010] In one embodiment, the surfaces of the first mounting section facing the exhaust port and the third mounting section facing the exhaust port are abutted to form a coincident surface, and the vertical distance between the surface of the second limiting section facing the exhaust port at the end away from the third mounting section and the coincident surface is h1;
[0011] The vertical distance between the surface of the deformed segment away from the exhaust port at the end away from the first mounting segment and the overlapping surface is h2;
[0012] The vertical distance between the end of the first limiting segment facing the exhaust port away from the second mounting segment and the overlapping surface is h, where 0 < h1 / h2 < 20, 0 < h1 < 0.9 * h.
[0013] In one embodiment, the exhaust valve is applied to a compressor, wherein the rotor rotation frequency of the motor in the compressor is f, 0 < h1 / h2 < 25 - f / 10, f > 100 Hz.
[0014] In one embodiment, the length of the limiting valve plate is greater than the length of the exhaust valve plate; and / or, the surface of the first limiting segment facing away from the exhaust port is planar and parallel to the second mounting segment.
[0015] In one embodiment, the stiffness of the limiting valve plate is greater than the stiffness of the exhaust valve plate.
[0016] In one embodiment, the thickness of the limiting valve plate is greater than the thickness of the exhaust valve plate.
[0017] In one embodiment, the exhaust valve further includes a locking member, wherein the first mounting section, the third mounting section, and the second mounting section are fixed to the valve seat by the locking member.
[0018] To achieve the above objectives, this utility model provides a bearing assembly, which includes a bearing body and the exhaust valve described above, wherein at least a portion of the bearing body is configured as the valve seat.
[0019] To achieve the above objectives, this utility model provides a compressor that includes the bearing assembly described above.
[0020] To achieve the above objectives, this utility model provides an air conditioner that includes the compressor described above.
[0021] The technical solution of this application improves the stable installation of the exhaust valve plate by connecting the first mounting section to the valve seat. The deformation section is set corresponding to the exhaust port and can deform according to the pressure changes in the compression chamber, thereby opening or closing the exhaust port. Moreover, the deformation section bends towards the exhaust port, which can provide a force to press the exhaust port, thereby providing a better sealing effect when closing the exhaust port. In addition, the exhaust valve plate is supported by the limiter when opening, which can limit the opening angle of the exhaust valve plate, thereby reducing the impact force between the exhaust valve plate and the valve seat when the exhaust valve plate rebounds and reducing noise. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the exhaust valve of this utility model;
[0024] Figure 2 This is a partial structural diagram of an embodiment of the exhaust valve of this utility model. Figure 1 The valve seat is hidden.
[0025] Figure 3 for Figure 2 Top view;
[0026] Figure 4 This is a partial structural diagram of an embodiment of the exhaust valve of this utility model. Figure 2 .
[0027] Explanation of icon numbers:
[0028] 100, Valve seat; 110, Exhaust port; 200, Exhaust valve plate; 210, First mounting section; 220, Deformation section; 300, Limiter; 310, Second mounting section; 320, First limit section; 400, Limit valve plate; 410, Third mounting section; 420, Second limit section; 500, Locking element.
[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present utility model.
[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0032] Furthermore, in the embodiments of this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the embodiments of this utility model.
[0035] As the heart of the refrigeration system, the compressor's primary function is to compress the refrigerant and circulate it. During operation, the pressure within the compression chamber gradually increases with the rotation of the rotor. When the pressure reaches the discharge pressure, the valve opens under the impact of the gas, thus expelling the high-pressure gas from the compression chamber. When the pressure within the compression chamber decreases, the valve closes the discharge port. However, existing valves do not provide a good seal when closing the discharge port.
[0036] In view of this, the present invention provides an exhaust valve, a bearing assembly, a compressor, and an air conditioner. The deformable section of the exhaust valve plate is bent towards the exhaust port, which can provide a force to press against the exhaust port, thereby providing a better sealing effect when the exhaust port is closed. In addition, the exhaust valve plate is supported by a limiter when it is open, which can limit the opening angle of the exhaust valve plate, thereby reducing the impact force between the exhaust valve plate and the valve seat when it rebounds and reducing noise.
[0037] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.
[0038] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes an exhaust valve, the exhaust valve comprising:
[0039] A valve seat 100 is provided with an exhaust port 110. When the exhaust valve is applied to a bearing assembly of a compressor, at least a portion of the bearing is configured as the valve seat 100, and the exhaust port 110 extends through at least a portion of the bearing in the axial direction of the bearing.
[0040] An exhaust valve plate 200 has a first mounting section 210 and a deformation section 220, which are integrally formed. The deformation section 220 is disposed corresponding to the exhaust port 110 and can open or close the exhaust port 110. The first mounting section 210 is connected to the valve seat 100, and the deformation section 220 is bent in the direction facing the exhaust port 110. It is understood that the first mounting section 210 and the valve seat 100 are fixed together, thus achieving a fixed connection between the exhaust valve plate 200 and the valve seat 100. The deformation section 220 is used to open or close the exhaust port 110 and is elastic, capable of deforming under the drive of gas. That is, when the pressure on the side of the exhaust port 110 away from the exhaust valve plate 200 is less than the elastic force of the deformation section 220, the deformation section 220 covers the exhaust port 110, thereby closing the exhaust port 110. When the pressure on the side of the exhaust port 110 facing away from the exhaust valve plate 200 is greater than the elastic force of the deformation section 220, the gas drives the deformation section 220 to bend and deform away from the exhaust port 110, separating the deformation section 220 from the exhaust port 110, thereby opening the exhaust port 110 and allowing the gas to be discharged. Furthermore, the deformation section 220 bends towards the exhaust port 110, possessing a pre-tightening force that moves towards the exhaust port 110, allowing the deformation section 220 to tightly cover the exhaust port 110, thereby improving the sealing performance when the exhaust port 110 is closed; and
[0041] A limiter 300 is provided on the side of the exhaust valve plate 200 opposite to the exhaust port 110 and has a second mounting section 310 and a first limiting section 320. The second mounting section 310 is connected to the valve seat 100. The end of the deformable section 220 away from the first mounting section 210 and the end of the first limiting section 320 away from the second mounting section 310 are spaced apart. Specifically, the limiter 300 is used to limit the movement stroke of the exhaust valve plate 200, reducing the risk of damage due to excessive bending of the exhaust valve plate 200. Moreover, the second mounting section 310 can fix the limiter 300 to the valve seat 100. That is, when the pressure on the side of the exhaust port 110 opposite to the exhaust valve plate 200 is greater than the elastic force of the deformable section 220, the deformable section 220 moves away from the exhaust port 110 and abuts against the first limiting section 320. When the pressure on the side of the exhaust port 110 facing away from the exhaust valve plate 200 is lower than the elastic force of the deformation section 220, the deformation section 220 returns to the state of closing the exhaust port 110 under the action of its own elastic force, and repeats the above steps in a cycle.
[0042] In this embodiment, the connection between the first mounting section 210 and the valve seat 100 improves the stable installation of the exhaust valve plate 200. The deformation section 220 is provided corresponding to the exhaust port 110 and can deform according to the pressure changes in the compression chamber, thereby opening or closing the exhaust port 110. Moreover, the deformation section 220 bends towards the exhaust port 110, which can provide a force to press the exhaust port 110, thereby providing a better sealing effect when the exhaust port 110 is closed. In addition, the exhaust valve plate 200 is supported by the limiter 300 when it is open, which can limit the opening angle of the exhaust valve plate 200, thereby reducing the impact force between the exhaust valve plate 200 and the valve seat 100 when it rebounds and reducing noise.
[0043] In one embodiment of the present invention, the exhaust valve further includes a limiting valve plate 400, which is disposed between the exhaust valve plate 200 and the limiter 300 and has a third mounting section 410 and a second limiting section 420. The third mounting section 410 is connected to the valve seat 100. The end of the deformable section 220 away from the first mounting section 210, the end of the first limiting section 320 away from the second mounting section 310, and the end of the second limiting section 420 away from the third mounting section 410 are spaced apart from each other. Specifically, the limiting valve plate 400 separates the exhaust valve plate 200 and the limiter 300. When the exhaust valve plate 200 opens under pressure, it first contacts the limiting valve plate 400. Because the limiting valve plate 400 has a certain rigidity, it provides a buffering effect on the exhaust valve plate 200, reducing the speed at which the exhaust valve plate 200 impacts the limiter 300, thereby reducing the vibration and noise generated by the impact on the limiter 300, and thus reducing the vibration and noise of the compressor. In other words, the movement stroke of the deformation section 220 of the exhaust valve plate 200 can be divided into two parts: the deformation section 220 of the exhaust valve plate 200 and the second limiting section 420 of the limiting valve plate 400 are in contact, and then the deformation section 220 of the exhaust valve plate 200 disengages from the second limiting section 420 of the limiting valve plate 400.
[0044] In one embodiment of this invention, the second limiting segment 420 is bent away from the exhaust port 110, and the first limiting segment 320 is bent away from the exhaust port 110. This optimizes the gas flow path, improves aerodynamic characteristics, and increases exhaust efficiency while providing a travel distance for the deformation segment 220.
[0045] In one embodiment of this utility model, reference is made to Figure 4 The surface of the first mounting section 210 facing the exhaust port 110 and the surface of the third mounting section 410 facing the exhaust port 110 are attached to form a coincident surface, and the vertical distance between the surface of the second limiting section 420 facing the exhaust port 110 at the end away from the third mounting section 410 and the coincident surface is h1.
[0046] The vertical distance between the surface of the deformable segment 220 away from the first mounting segment 210 and the surface opposite to the exhaust port 110 and the overlapping surface is h2.
[0047] The vertical distance between the end of the first limiting segment 320 facing the exhaust port 110 away from the second mounting segment 310 and the overlapping surface is h, where 0 < h1 / h2 < 20, 0 < h1 < 0.9 * h.
[0048] In this embodiment, 0 < h1 / h2 < 20, meaning that the bending angle of the second limiting segment 420 away from the exhaust port 110 is greater than the bending angle of the limiting segment facing the exhaust port 110. This limits the bending angle of the limiting segment, preventing excessive pressure on the limiting segment facing the exhaust port 110, which could prevent the exhaust port 110 from opening within the predetermined pressure range, thus improving the normal operation of exhaust. Furthermore, 0 < h1 < 0.9 * h limits the bending angle of the second limiting segment 420 away from the exhaust port 110, reducing the risk of the second limiting segment 420 colliding with the first limiting segment 320. This ensures that the second limiting segment 420 can buffer the deformation segment 220, thereby reducing impact noise.
[0049] In one embodiment of this utility model, the exhaust valve is applied to a compressor, where the rotor rotation frequency of the motor in the compressor is f, 0 < h1 / h2 < 25 - f / 10, and f > 100Hz. Thus, when the compressor speed is high, by reducing the bending angle of the second limiting section 420 away from the exhaust port 110 and increasing the bending angle of the deformation section 220 facing the exhaust port 110, the force exerted by the deformation section 220 pressing against the exhaust port 110 increases, and the pressure separating the deformation section 220 and the exhaust port 110 increases. This improves the high-frequency performance and noise of the compressor under high-speed operating conditions.
[0050] In one embodiment of this utility model, the length of the limiting valve plate 400 is greater than the length of the exhaust valve plate 200. This ensures that after the exhaust port 110 is opened, the deformation section 220 of the exhaust valve plate 200 can fully strike the second limiting section 420 of the limiting valve plate 400, preventing local stress abrupt changes due to some parts of the deformation section 220 not striking the second limiting section 420, thereby reducing the risk of damage or cracking of the deformation section 220; and / or, the surface of the first limiting section 320 facing away from the exhaust port 110 is flat and parallel to the second mounting section 310. Thus, when the first limiting section 320 is bent at the same angle facing away from the exhaust port 110, the protrusion height of the surface of the first limiting section 320 facing away from the exhaust port 110 can be reduced, thereby reducing the risk of interference between the first limiting section 320 and the muffler above it.
[0051] In one embodiment of this utility model, the stiffness of the limiting valve plate 400 is greater than that of the exhaust valve plate 200. This provides a buffering effect on the deformation section 220, thereby reducing the speed at which the deformation section 220 impacts the first limiting section 320 of the limiter 300, and thus reducing the impact noise. In other words, because the limiting valve plate 400 has a greater stiffness than the exhaust valve plate 200, it provides better buffering during the opening of the exhaust port 110 by the deformation section 220 of the exhaust valve plate 200. This reduces the excitation of the deformation section 220 impacting the first limiting section 320 of the limiter 300, thus lowering the noise from the impact. Optionally, the limiting valve plate 400 and the exhaust valve plate 200 can have the same shape.
[0052] In one embodiment, the limiting valve plate 400 and the exhaust valve plate 200 are made of different materials, and the rigidity of the material of the limiting valve plate 400 is greater than that of the material of the exhaust valve plate 200. Of course, in other embodiments, the thickness S1 of the limiting valve plate 400 is greater than the thickness S2 of the exhaust valve plate 200, which also ensures that the rigidity of the limiting valve plate 400 is greater than that of the exhaust valve plate 200.
[0053] In one embodiment of this utility model, reference is made to Figure 1 The exhaust valve further includes a locking member 500, through which the first mounting section 210, the third mounting section 410, and the second mounting section 310 are fixed to the valve seat 100. This allows the first mounting section 210, the second mounting section 310, and the third mounting section 410 to be fixed to the valve seat 100. In one embodiment, the locking member 500 is a bolt, with the shank of the bolt passing sequentially through the first mounting section 210, the second mounting section 310, and the third mounting section 410, and threadedly connected to the valve seat 100.
[0054] To achieve the above objectives, this utility model provides a bearing assembly comprising a bearing body and the exhaust valve described above, wherein the bearing body is mounted on the valve seat. Specifically, the exhaust valve has the same structure as described in the above embodiments. Since this bearing assembly adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here. When the exhaust valve is applied to the bearing assembly of a compressor, at least a portion of the bearing is configured as a valve seat 100, and the exhaust port 110 penetrates at least a portion of the bearing in the axial direction of the bearing.
[0055] To achieve the above objectives, this utility model provides a compressor that includes the bearing assembly described above. Specifically, the specific structure of the bearing assembly is as described in the above embodiments. Since this compressor adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0056] To achieve the above objectives, this utility model provides an air conditioner comprising the compressor described above. Specifically, the compressor's structure is as described in the above embodiments. Since this air conditioner employs all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. In one embodiment, the air conditioner can be a common household air conditioner. Of course, in other embodiments, the air conditioner can also be a vehicle air conditioner, providing a more comfortable and quiet environment for drivers and passengers.
[0057] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model embodiments. Any equivalent structural transformations made under the technical concept of the present utility model using the description and drawings of the present utility model embodiments, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model embodiments.
Claims
1. An exhaust valve, characterized in that, The exhaust valve includes: Valve seat, wherein the valve seat is provided with an exhaust port; An exhaust valve plate, the exhaust valve plate having a first mounting section and a deformation section, the deformation section being disposed corresponding to the exhaust port to open or close the exhaust port, the first mounting section being connected to the valve seat, and the deformation section being bent in the direction facing the exhaust port; and A limiter is provided on the side of the exhaust valve plate away from the exhaust port and has a second mounting section and a first limiting section. The second mounting section is connected to the valve seat. The end of the deformation section away from the first mounting section and the end of the first limiting section away from the second mounting section are spaced apart.
2. The exhaust valve as described in claim 1, characterized in that, The exhaust valve also includes a limiting valve plate, which is disposed between the exhaust valve plate and the limiter and has a third mounting section and a second limiting section. The third mounting section is connected to the valve seat. The end of the deformation section away from the first mounting section, the end of the first limiting section away from the second mounting section, and the end of the second limiting section away from the third mounting section are spaced apart from each other.
3. The exhaust valve as described in claim 2, characterized in that, The second limiting segment bends away from the exhaust port, and the first limiting segment bends away from the exhaust port.
4. The exhaust valve as described in claim 3, characterized in that, The surfaces of the first mounting section facing the exhaust port and the third mounting section facing the exhaust port are attached to form a coincident surface, and the vertical distance between the surface of the second limiting section facing the exhaust port at the end away from the third mounting section and the coincident surface is h1; The vertical distance between the surface of the deformed segment away from the exhaust port at the end away from the first mounting segment and the overlapping surface is h2; The vertical distance between the end of the first limiting segment facing the exhaust port away from the second mounting segment and the overlapping surface is h, where 0 < h1 / h2 < 20, 0 < h1 < 0.9 * h.
5. The exhaust valve as described in claim 4, characterized in that, The exhaust valve is applied to the compressor, and the rotor rotation frequency of the motor in the compressor is f, 0 < h1 / h2 < 25 - f / 10, f > 100Hz.
6. The exhaust valve as described in claim 2, characterized in that, The length of the limiting valve plate is greater than the length of the exhaust valve plate; and / or, the surface of the first limiting section facing away from the exhaust port is flat and parallel to the second mounting section.
7. The exhaust valve as described in claim 2, characterized in that, The stiffness of the limiting valve plate is greater than that of the exhaust valve plate.
8. The exhaust valve as described in claim 7, characterized in that, The thickness of the limiting valve plate is greater than the thickness of the exhaust valve plate.
9. The exhaust valve according to any one of claims 2 to 8, characterized in that, The exhaust valve also includes a locking element, and the first mounting section, the third mounting section and the second mounting section are fixed to the valve seat by the locking element.
10. A bearing assembly, characterized in that, The bearing assembly includes a bearing body and an exhaust valve as claimed in any one of claims 1-9, wherein at least a portion of the bearing body is configured as the valve seat.
11. A compressor, characterized in that, The compressor includes the bearing assembly as described in claim 10.
12. An air conditioner, characterized in that, The air conditioner includes the compressor as described in claim 11.