Valve seat assembly and compressor

Abstract

This application discloses a valve seat assembly and a compressor. An exhaust valve seat has a mounting groove, and an exhaust hole is provided through the bottom end of the mounting groove. A valve plate is disposed within the mounting groove. Along the length of the valve plate, one side of the valve plate is fixed to the exhaust valve seat, and the fixing point between the valve plate and the exhaust valve seat includes a fixing point. The side of the valve plate away from the fixing point is positioned opposite the exhaust hole and moves along the height direction of the exhaust valve seat to open or cover the exhaust hole. Along the height direction of the exhaust valve seat, a limiting member is disposed on the side of the valve plate away from the exhaust hole. Along the length direction of the valve plate, the first end of the limiting member is fixedly connected to the exhaust valve seat at the fixing point, and the second end of the limiting member away from the first end is suspended and has a center point opposite to the exhaust hole. The connection between the first end and the second end includes a connection point. This application solves the problem that valve seat assemblies struggle to simultaneously achieve low noise and high exhaust efficiency.

Description

Technical Field

[0001] This application relates to the field of compression device technology, and more specifically, to a valve seat assembly and a compressor. Background Technology

[0002] Compressors typically include cylinders and valve seat assemblies. The cylinder's interior communicates with the exhaust passage on the valve seat assembly, allowing gas to escape from the cylinder. Existing valve seat assemblies usually consist of a valve plate and a limiting plate. The valve plate is located within the exhaust passage and periodically opens and closes the passage as the compressor draws in and discharges gas. The limiting plate is mounted on the back of the valve plate and controls the lift height of the valve plate when it rises to open the exhaust passage. During compressor operation, the valve plate periodically strikes the limiting plate during opening and closing, generating significant noise. Therefore, the structural design of the valve seat assembly greatly affects the compressor's exhaust performance and noise level. However, existing valve seat assemblies, while improving noise levels, often increase exhaust resistance and reduce exhaust efficiency, or vice versa. It is difficult to achieve a balance between low noise and high exhaust efficiency. Utility Model Content

[0003] The main objective of this application is to provide a valve seat assembly and a compressor to solve the problem that valve seat assemblies in the prior art are difficult to balance low noise and high exhaust efficiency.

[0004] According to one aspect of this application, a valve seat assembly is provided for use in an air conditioner compressor, the valve seat assembly comprising:

[0005] An exhaust valve seat is provided with a mounting groove, and an exhaust hole is provided through the bottom end of the mounting groove.

[0006] A valve plate is disposed in the mounting groove. Along the length direction of the valve plate, one side of the valve plate is fixed to the exhaust valve seat. The fixing point between the valve plate and the exhaust valve seat includes a fixing point. The side of the valve plate away from the fixing point is disposed opposite to the exhaust hole and moves along the height direction of the exhaust valve seat to open or cover the exhaust hole.

[0007] A limiting member is provided on the side of the valve plate away from the exhaust hole along the height direction of the exhaust valve seat. Along the length direction of the valve plate, the first end of the limiting member is fixedly connected to the exhaust valve seat at the fixed point. The second end of the limiting member away from the first end is suspended and has a center point opposite to the exhaust hole. The connection between the first end and the second end includes a connection point.

[0008] Wherein, along the height direction of the exhaust valve seat, the thickness of the valve plate is T; along the length direction of the valve plate, the distance from the fixing point to the connection point is l; the maximum width of the exhaust hole is d; within the projection of the limiting member along the height direction of the exhaust valve seat, the distance between the fixing point and the center point is L; the limiting member and the valve plate are fixedly connected to the exhaust valve seat by fasteners; along the length direction of the valve plate, the maximum width of the fasteners is D; where T, L, l, d, and D satisfy the following relationship: and

[0009] The displacement of the compressor is Q, where 7.2cc ≤ Q ≤ 10.8cc.

[0010] Furthermore, the distance l from the fixed point to the connection point and the maximum width d of the exhaust hole satisfy the relationship: 0.7≤d / l≤1.

[0011] Furthermore, the maximum width d of the exhaust port satisfies the following relationship: d≤7mm.

[0012] Furthermore, the thickness T of the valve plate satisfies the following relationship: 0.2mm≤T≤0.4mm.

[0013] Furthermore, along the height direction of the exhaust valve seat, a first through hole is provided through the second end, the projected outer contour of the first through hole is located within the projected outer contour of the exhaust hole, and the center of the first through hole is the center point.

[0014] Furthermore, the limiting member includes a plate, the first end of the limiting member is laid flat on the bottom of the mounting groove, and the valve plate is at least partially pressed between the first end and the valve seat assembly.

[0015] Furthermore, the second end bends away from the valve plate along the height direction of the exhaust valve seat.

[0016] On the other hand, this application also provides a compressor including the aforementioned valve seat assembly.

[0017] Furthermore, the compressor includes a housing, the valve seat assembly is disposed within the housing, and the maximum width of the housing is H, wherein 92mm≤H≤108mm.

[0018] Furthermore, the compressor includes a motor, the maximum speed of which is Vmax, wherein 6000rpm≤Vmax≤10800rpm.

[0019] Furthermore, the compressor is a single-cylinder rotary compressor.

[0020] In this application, the mounting groove provides installation space for the valve plate and the limiting member. During venting, the pressure inside the vent hole is high, creating a pressure difference on both sides of the valve plate. The valve plate rises under this pressure difference to open the vent hole, and the gas rushes out of the vent hole into the mounting groove and exits through the groove opening. The second end of the limiting member is suspended and positioned opposite the vent hole, providing a certain lift space between the second end of the limiting member and the vent hole. The side of the valve plate furthest from the fixed point can move within this lift space. With the second end of the limiting member suspended and positioned opposite the vent hole, during venting, the gas propels the valve plate to a position where it abuts against the limiting member. The limiting member restricts the range of movement of the valve plate to adjust the opening width of the vent hole, thereby regulating the venting speed of the gas. The limiting member can also be used to control the instantaneous speed at which the valve plate impacts the limiting member, thus regulating the noise generated when the valve plate impacts the limiting member. Furthermore, the first end of the limiting component is fixedly connected to the exhaust valve seat at a fixed point. This first end stably fixes at least a portion of the valve disc away from the exhaust port onto the exhaust valve seat, limiting the length of the movable portion of the valve disc. This restricts the lever arm length when the valve disc opens the exhaust port, reducing the speed at which the valve disc strikes the limiting component and decreasing noise when the valve disc opens the exhaust port. The limiting component also makes the valve disc's movement trajectory more stable, avoiding gas turbulence caused by valve disc wobbling, reducing exhaust resistance, and improving exhaust efficiency.

[0021] The thickness T of the valve plate affects its stiffness and vibration characteristics. If the thickness T is too small, the valve plate's movement amplitude will be too large, increasing noise when the valve plate opens the exhaust port. If the thickness T is too large, it will affect the response speed of opening and closing the exhaust port, increasing gas exhaust resistance. L+l affects the elastic lever arm length of the limiting component, the buffering capacity of the operating limiting component, and the lift limitation range. The maximum width d of the exhaust port reflects the cross-sectional area of ​​the exhaust port, affecting the magnitude of gas resistance. Fasteners provide sufficient clamping force to effectively prevent the valve plate and limiting component from loosening or shifting under high-frequency vibration, reducing noise caused by structural instability. This embodiment is configured as follows: and By adjusting at least one of the following: the thickness of the valve plate, the distance from the fixing point to the connection point, the distance between the fixing point and the center point, the maximum width of the exhaust port, and the maximum width of the fastener 40, the rigidity of the valve plate, the elasticity of the limiting component, and the exhaust efficiency can be changed. This ensures that the limiting component produces appropriate elastic deformation when the valve plate strikes, buffering the impact force and effectively reducing noise. This ensures that the valve seat assembly can balance low noise and high exhaust efficiency. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a cross-sectional view of the valve seat assembly disclosed in this application;

[0024] Figure 2 This is a partial schematic diagram of the valve seat assembly disclosed in this application;

[0025] Figure 3 This is a cross-sectional view of the limiting plate disclosed in this application;

[0026] Figure 4 This is a cross-sectional view of the fastener disclosed in this application;

[0027] Figure 5 This is a top view of the limiting component disclosed in this application;

[0028] Figure 6 This is a cross-sectional view of the valve plate disclosed in this application;

[0029] Figure 7 This is a top view of the valve plate disclosed in this application.

[0030] The above figures include the following reference numerals:

[0031] 10. Exhaust valve seat; 11. Mounting groove; 12. Exhaust hole; 20. Valve plate; 21. Second through hole; 30. Limiting component; 31. Fixing point; 32. Center point; 33. Connection point; 34. First through hole; 40. Fastener. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0035] When the pressure inside the cylinder is high, a pressure difference forms on both sides of the valve plate. Under the influence of this pressure difference, the valve plate rises and opens the exhaust passage to expel the gas from the cylinder. When the exhaust process ends, the valve plate closes the exhaust passage under gravity. During compressor operation, the valve plate periodically strikes the limit plate as the compressor draws in and discharges air, generating significant noise. Therefore, the structural design of the valve seat assembly has a significant impact on the compressor's exhaust performance and noise level. To address the problem that existing valve seat assembly structures struggle to balance low noise and high exhaust efficiency, such as... Figures 1 to 7 As shown, this application provides a valve seat assembly for use in an air conditioner compressor. The valve seat assembly includes an exhaust valve seat 10, a valve plate 20, and a limiting member 30.

[0036] An exhaust valve seat 10 has a mounting groove 11, and an exhaust hole 12 is provided through the bottom end of the mounting groove 11. A valve plate 20 is disposed within the mounting groove 11. Along the length of the valve plate 20 (e.g., ... Figure 1 (As indicated by the middle arrow X), one side of the valve plate 20 is fixed to the exhaust valve seat 10, and the fixing point between the valve plate 20 and the exhaust valve seat 10 includes a fixing point 31. The side of the valve plate 20 away from the fixing point 31 is positioned opposite to the exhaust port 12 and moves along the height direction of the exhaust valve seat 10 to open or cover the exhaust port 12. Along the height direction of the exhaust valve seat 10 (e.g., ... Figure 1 (In the direction indicated by the middle arrow Y), the limiting member 30 is disposed on the side of the valve plate 20 opposite to the exhaust port 12. Along the length direction of the valve plate 20, the first end of the limiting member 30 is fixedly connected to the exhaust valve seat 10 at the fixing point 31, and the second end of the limiting member 30 away from the first end is suspended and has a center point 32 opposite to the exhaust port 12. The connection between the first end and the second end includes a connection point 33.

[0037] Along the height direction of the exhaust valve seat 10, the thickness of the valve plate 20 is T. Along the length direction of the valve plate 20, the distance from the fixing point 31 to the connection point 33 is l, and the maximum width of the exhaust hole 12 is d. Within the projection of the limiting member 30 along the height direction of the exhaust valve seat 10, the distance between the fixing point 31 and the center point 32 is L. The limiting member 30 and the valve plate 20 are fixedly connected to the exhaust valve seat 10 by fasteners 40, and along the length direction of the valve plate 20, the maximum width of the fastener 40 is D. T, L, l, d, and D satisfy the following relationship: and The compressor displacement is Q, where 7.2cc ≤ Q ≤ 10.8cc.

[0038] In this embodiment, the mounting groove 11 provides mounting space for the valve plate 20 and the limiting member 30. During venting, the pressure inside the vent hole 12 is relatively high, creating a pressure difference between the two sides of the valve plate 20. The valve plate 20 rises under the influence of this pressure difference to open the vent hole 12, allowing gas to escape through the vent hole 12 and enter the mounting groove 11, exiting through the opening of the mounting groove 11. The second end of the limiting member 30 is suspended and positioned opposite the vent hole 12, providing a certain lift space between the second end of the limiting member 30 and the vent hole 12. The side of the valve plate 20 furthest from the fixed point 31 can move within this lift space. With the second end of the limiting member 30 suspended and positioned opposite the vent hole 12, during venting, the gas propels the valve plate 20 to a position where it abuts against the limiting member 30. The limiting member 30 restricts the movement range of the valve plate 20 to adjust the opening amplitude of the vent hole 12, thereby regulating the gas venting speed, etc. The limiting member 30 can also be used to control the instantaneous speed at which the valve plate 20 impacts the limiting member 30, thereby adjusting the noise generated when the valve plate 20 impacts the limiting member 30. Furthermore, the first end of the limiting member 30 is fixedly connected to the exhaust valve seat 10 at the fixing point 31. The first end of the limiting member 30 can stably fix at least a portion of the valve plate 20 away from the exhaust port 12 onto the exhaust valve seat 10, limiting the length of the movable portion of the valve plate 20, thus limiting the lever arm length when the valve plate 20 opens the exhaust port 12. This reduces the speed at which the valve plate 20 impacts the limiting member 30, reducing the noise when the valve plate 20 opens the exhaust port 12. The limiting member 30 also makes the movement trajectory of the valve plate 20 more stable, avoiding gas turbulence caused by the valve plate 20 shaking, reducing exhaust resistance, and improving exhaust efficiency.

[0039] The thickness T of the valve plate 20 affects its stiffness and vibration characteristics. If the thickness T is too small, the valve plate 20's movement amplitude will be too large, increasing noise when the valve plate 20 opens the exhaust port 12. If the thickness T is too large, it will affect the response speed of opening and closing the exhaust port 12, increasing gas exhaust resistance. L+l affects the elastic lever arm length of the limiting member 30, as well as its buffering capacity and lift limitation range. The maximum width d of the exhaust port 12 reflects its cross-sectional area, affecting the magnitude of gas exhaust resistance. The fastener 40 provides sufficient clamping force, effectively preventing the valve plate 20 and the limiting member 30 from loosening or shifting under high-frequency vibration, reducing noise caused by structural instability. This embodiment also prevents the fastener 40 from being too large, hindering the movement of the valve plate 20 or occupying too much space. Meanwhile, a reasonable parameter ratio can enable the limiting component 30 to evenly distribute the stress to the exhaust valve seat 10 when absorbing the impact force of the valve plate 20, thereby reducing fatigue damage caused by local stress concentration in the exhaust valve seat 10, extending its service life, and ensuring the alignment accuracy between the valve plate 20 and the exhaust port 12 when the valve plate 20 is opened and closed through precise assembly positioning, further optimizing exhaust energy efficiency.

[0040] This embodiment is set and For example, It can be set to one of the following values: 1.5, 1.6, 1.65, 1.7, 1.75, 1.8, 1.85, 1.9, or 2. It can be set to one of 20, 20.5, 21, 21.5, 22, 22.5, 23, etc. By adjusting at least one of the following: the thickness of the valve plate 20, the distance between the fixing point 31 and the connection point 33, the distance between the fixing point 31 and the center point 32, the maximum width of the exhaust hole 12, and the maximum width of the fastener 40, the rigidity of the valve plate 20, the elasticity of the limiting member 30, and the exhaust efficiency can be changed, ensuring that the limiting member 30 produces appropriate elastic deformation when the valve plate 20 strikes, thereby effectively reducing noise. If This can lead to excessive thickness T of valve plate 20, excessive lever arm length of limiting member 30, and excessive maximum width d of exhaust port 12, resulting in high opening resistance of valve plate 20 and low exhaust efficiency. If... This will cause the valve plate 20 to have insufficient rigidity, and the limiting component 30 will be unable to effectively limit the lift of the valve plate 20 due to insufficient rigidity, resulting in the valve plate 20 being over-opened and generating a large amount of noise.

[0041] The compressor's displacement is denoted by Q, where 7.2cc ≤ Q ≤ 10.8cc. The compressor's displacement Q can be set to one of the following: 7.2cc, 7.5cc, 8cc, 8.5cc, 9cc, 9.5cc, 10cc, 10.5cc, or 10.8cc. This compressor can be used in 1-1.5 horsepower air conditioners, 100-200L refrigerators, etc., and can meet the precise temperature control requirements for cooling small spaces. If Q < 7.2cc, the compressor's displacement is too small, leading to increased compression cycles, increased friction loss, and increased energy consumption. If Q > 10.8cc, the compressor's displacement is too large, leading to increased clearance volume, gas backflow loss, and reduced exhaust efficiency.

[0042] The valve plate 20 is usually a metal sheet structure with a certain degree of flexible deformation, so that when the side of the valve plate 20 away from the fixed point 31 is subjected to the pressure of the airflow, it can generate flexible deformation and move upward to open the exhaust port 12.

[0043] The appropriate thickness of the valve plate 20 ensures good elasticity, resulting in good exhaust efficiency and low noise for the exhaust valve seat 10. This thickness also effectively prevents insufficient structural strength between the valve plate 20 and the limiting member 30 due to blindly increasing the maximum width of the exhaust port 12, while preventing the sacrifice of the limiting effect on the valve plate in pursuit of excessively low resistance. This embodiment provides quantitative basis for performance optimization of the valve seat assembly from multiple dimensions, including the stiffness matching of the limiting member 30 and the valve plate 20, the buffer limiting of the limiting member 30, gas flow efficiency, and the dynamic stability of airflow. This further strengthens the balance between noise control and exhaust efficiency of the valve seat assembly, achieving both low noise and high exhaust efficiency.

[0044] Specifically, the fastener 40 can be a rivet. The rivet passes through the first end of the limiting member 30, the valve plate 20, and the exhaust valve seat 10 in sequence to fix the three together. The position of the valve plate 20 passing through the rivet forms a second through hole 21, and the fixing point 31 is the geometric center of the rivet or the geometric center of the second through hole 21.

[0045] Specifically, Table 1 below shows... The table shows the relevant test data of the valve seat assembly during compressor discharge when set to multiple different values. The energy efficiency COP (GB operating condition-120HZ) in Table 1 is the ratio of cooling capacity to input electrical power when the compressor is running at a high frequency of 120HZ under specific environmental conditions specified by national standards. This indicator takes into account both operating condition applicability and high-frequency operating efficiency. Figure 1 Prepared from Table 1.

[0046] Table 1

[0047]

[0048]

[0049] Figure 1

[0050]

[0051] From Table 1 and Figure 1 It can be seen that, and When the valve plate 20 rises 1mm, the elasticity is relatively stable, the noise is low and the energy efficiency is high, which can balance low noise and high exhaust energy efficiency. When set to 1.430, When set to 23.486, the elasticity of valve plate 20 is relatively small and the noise is relatively large. When set to 1.481, When set to 19.643, the valve plate 20 has a large elasticity but also relatively high noise.

[0052] In one embodiment, the distance *l* from the fixed point 31 to the connection point 33 and the maximum width *d* of the vent hole 12 satisfy the relationship: 0.7 ≤ *d / l* ≤ 1. *d / l* can be set to one of the following: 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, or 1. When the valve plate 20 moves with the fixed point 31 as the fulcrum, the force is more balanced, avoiding local stress concentration in the valve plate 20 due to an imbalance in the ratio of *d* to *l*. This extends the service life of the valve plate 20 and reduces abnormal noise caused by damage to the valve plate 20. A reasonable ratio of *d* to *l* ensures better gas exhaust efficiency when the valve plate 20 opens the vent hole 12. It avoids exhaust congestion and increased resistance due to an excessively small vent hole 12, and also prevents the valve plate 20 from being unable to stably cover or open the vent hole 12 due to an excessively large vent hole 12, ensuring smooth exhaust and contributing to improved energy efficiency. The d / l constraint makes the trajectory and amplitude of the valve plate 20's opening and closing movement more controllable, reducing the risk of abnormal collisions between the valve plate 20 and components such as the limiting member 30 and the exhaust valve seat 10, further reducing noise, and achieving synergistic optimization of noise control and exhaust energy efficiency, making the valve seat assembly more reliable and efficient in compressor operation. If d / l < 0.7, the length of the exhaust port 12 relative to the first end is too small, and the gas flow channel is restricted when the gas passes through the exhaust port 12, which will significantly increase the exhaust resistance, causing the compressor to consume more energy to push the gas out, and the exhaust energy efficiency will also decrease, increasing the compressor's operating energy consumption cost. If d / l > 1, the length of the exhaust port 12 relative to the first end is too large, which will cause the gas to have a large pressure, and the gas will undergo excessive deformation, pushing the valve plate 20 to abut against the limiting member 30. The limiting member 30 will be subjected to excessive impact force, affecting the limiting ability of the limiting member 30 to limit the valve plate 20, and also increasing noise.

[0053] In one embodiment, the maximum width d of the exhaust port 12 satisfies the relationship: d ≤ 7 mm. d can be set to one of 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, or 7 mm. The maximum width d of the exhaust port 12 affects the gas flow rate and velocity. Therefore, the exhaust port 12 can limit the variation in flow rate and velocity during gas discharge, preventing airflow turbulence and increased turbulence caused by an excessively wide exhaust port 12, effectively reducing noise generated by gas flow, while making gas discharge smoother, reducing energy loss, and improving exhaust efficiency. With d ≤ 7 mm, the valve plate 20 can more precisely cover or open the exhaust port 12 when opening and closing, reducing noise, and allowing the limiting component 30 to more stably control the lift of the valve plate 20. The constraint of d ≤ 7 mm, in conjunction with other parameters (such as T(L+l) / d, DL / d, etc.), can balance the requirements of noise control and energy efficiency improvement by precisely controlling the size of the exhaust port 12 in high-frequency compressor operation scenarios, ensuring that the valve seat assembly achieves synergistic optimization in terms of structural compactness, motion stability, and high performance efficiency, making the overall compressor operation quieter and more energy-efficient. If d > 7mm, the maximum width d of the exhaust port 12 is too large. An excessively large exhaust port 12 can easily cause sudden changes in gas discharge speed and flow rate, triggering strong turbulence and eddies, increasing gas flow resistance, causing the compressor to consume more energy to push the gas out, significantly reducing exhaust efficiency, and at the same time, the high-frequency noise generated by turbulence will also increase significantly.

[0054] In one embodiment, the vent 12 can be circular, square, or the like. The inner diameter of the vent 12 can be of uniform width or of unequal width. For example, the vent 12 can be a tapered structure.

[0055] In one embodiment, the thickness T of the valve plate 20 satisfies the relationship: 0.2mm ≤ T ≤ 0.4mm. The thickness T of the valve plate 20 can be set to one of 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, etc. The valve plate 20 has moderate rigidity and elasticity, ensuring that the valve plate 20 is not prone to excessive deformation under gas pressure impact, avoiding sealing failure and air leakage due to insufficient rigidity, and reducing energy loss. At the same time, this embodiment can also prevent the increase in weight and inertia caused by excessive thickness of the valve plate 20, avoiding slow opening and closing response and increased operating energy consumption. The reasonable thickness makes the movement trajectory of the valve plate 20 more stable and controllable when opening and closing with the fixed point 31 as the fulcrum, and the matching accuracy with the limiting member 30 and the exhaust port 12 is higher. It can quickly respond to pressure changes to complete the suction and exhaust actions, and reduce abnormal noise caused by vibration and shaking. T works in conjunction with other parameters (such as L, l, d, etc.) to ensure that the valve plate 20 achieves both low noise and high energy efficiency under high-frequency operation of the compressor. If T < 0.2 mm, an excessively thin valve plate 20 is prone to causing high-frequency vibration noise. If T > 0.4 mm, an excessively thick valve plate 20 will increase exhaust resistance.

[0056] In one embodiment, a first through hole 34 is provided through the second end along the height direction of the exhaust valve seat 10. The projected outer contour of the first through hole 34 is located within the projected outer contour of the exhaust hole 12, and the center of the first through hole 34 is the center point 32. During exhaust, the valve plate 20 will strike the limiting member 30 under the action of the airflow. The second through hole 21 can reduce the rigid collision between the gas and the limiting member 30, which can effectively reduce the noise when the valve plate 20 strikes the limiting member 30. Providing the first through hole 34 on the second end can reduce the contact area between the second end and the valve plate 20, reduce the resonance between the limiting member 30 and the valve plate 20, and further help to reduce noise.

[0057] In one embodiment, the limiting member 30 includes a plate. A first end of the limiting member 30 is laid flat on the bottom of the mounting groove 11, and the valve plate 20 is at least partially pressed between the first end and the valve seat assembly. The second end is bent away from the valve plate 20 along the height direction of the exhaust valve seat 10. The flat first end, pressed against the valve plate 20, increases the contact area, making the force at the fixing point 31 more uniform, reducing the local stress of the fastener 40, and reducing the risk of loosening or fatigue damage due to stress concentration. The bent second end, away from the valve plate 20, forms an elastic cantilever structure. When the valve plate 20 strikes, it can absorb impact energy through elastic deformation, avoiding high-frequency noise generated by rigid collisions. The bent second end provides a clear lift limit for the valve plate 20, and the bending angle can adjust the movement stroke of the valve plate 20, ensuring that the valve plate 20 can fully open to reduce exhaust resistance when opening the exhaust port 12, without increasing the risk of collision due to excessive lift. Meanwhile, the limiting component 30 makes the opening and closing process of the valve plate 20 smoother, reducing shaking and abnormal vibration, and further reducing noise. The design of the first end fitting against the bottom of the mounting groove 11 and the valve plate 20 being pressed together effectively utilizes the space layout of the exhaust valve seat 10 and improves the compactness of the component.

[0058] On the other hand, embodiments of this application also provide a compressor that includes the aforementioned valve seat assembly. Therefore, this compressor incorporates all the technical effects of the aforementioned valve seat assembly. Since the technical effects of the valve seat assembly have already been described in detail above, they will not be repeated here.

[0059] The compressor provided in this application can improve the smoothness of high-frequency exhaust, reduce exhaust flow resistance and airflow pulsation, thereby improving the high-frequency energy efficiency of valve plate 20 and reducing high-frequency noise.

[0060] In one embodiment, the compressor includes a housing, and a valve seat assembly is disposed within the housing. The maximum width of the housing is H, wherein 92mm ≤ H ≤ 108mm. The maximum width H of the housing can be set to one of the following: 92mm, 93mm, 94mm, 95mm, 96mm, 97mm, 98mm, 99mm, 100mm, 101mm, 102mm, 103mm, 104mm, 105mm, 106mm, 107mm, 108mm, etc. The housing can be adapted to the installation space height in household and small commercial air conditioners. When the housing is subjected to high pressure inside the compressor, the stress distribution on the housing is uniform, and deformation or resonance is not easily caused, effectively reducing noise generated by vibration. If H < 92mm, the size of the housing is too small, which leads to increased stress concentration when the housing is subjected to high pressure inside, which can easily cause steel plate deformation and insufficient rigidity, resulting in resonance noise. If H > 108mm, the increased housing width lengthens the internal gas transmission path, increases gas flow resistance, leads to prolonged exhaust time, and exacerbates the clearance volume effect.

[0061] In one embodiment, the compressor includes a motor with a maximum speed of Vmax, where 6000rpm ≤ Vmax ≤ 10800rpm (rpm represents the number of revolutions per minute of the motor). The maximum speed Vmax of the motor can be set to one of 6000rpm, 7000rpm, 8000rpm, 9000rpm, 10000rpm, or 10800rpm. The motor is coupled with a displacement of 7.2cc-10.8cc, enabling the compressor to adapt to both low-load scenarios (when the maximum speed of the motor is between 6000-8000rpm) and high-load demands (when the maximum speed of the motor is between 8000rpm-10800rpm). By adjusting the speed, the displacement dynamically responds to the cooling capacity demand.

[0062] In one embodiment, the compressor is a single-cylinder rotary compressor. The exhaust port 12 communicates with the compression chamber of the compressor cylinder. The airflow in the compression chamber enters the mounting groove 11 through the exhaust port 12 and exits through the slot of the mounting groove 11. The compressor includes a housing and a motor, compressor pump body, etc., located within the housing. The compressor pump body mainly includes a crankshaft, a cylinder, and an exhaust valve seat 10 and a lower bearing connected to opposite sides of the cylinder for supporting the crankshaft. The lower bearing mainly supports the distal end of the crankshaft extending from the cylinder. The exhaust valve seat 10 and the lower bearing cooperate to prevent the rotating crankshaft from twisting or shifting, improving the rotational accuracy and stability of the crankshaft. The motor drives the crankshaft to rotate. The crankshaft has an eccentric part connected to the piston inside the cylinder via a connecting rod, driving the piston to rotate and compress the refrigerant gas entering the cylinder.

[0063] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0064] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0065] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A valve seat assembly used in an air conditioner compressor, characterized in that, The valve seat assembly includes: An exhaust valve seat (10) is provided with an installation groove (11), and an exhaust hole (12) is provided through the bottom end of the installation groove (11). Valve plate (20), the valve plate (20) is disposed in the mounting groove (11), along the length direction of the valve plate (20), one side of the valve plate (20) is fixed to the exhaust valve seat (10), the fixing point of the valve plate (20) and the exhaust valve seat (10) includes a fixing point (31), the side of the valve plate (20) away from the fixing point (31) is disposed opposite to the exhaust hole (12) and moves along the height direction of the exhaust valve seat (10) to open or cover the exhaust hole (12); A limiting member (30) is provided on the side of the valve plate (20) away from the exhaust hole (12) along the height direction of the exhaust valve seat (10). Along the length direction of the valve plate (20), the first end of the limiting member (30) is fixedly connected to the exhaust valve seat (10) at the fixed point (31). The second end of the limiting member (30) away from the first end is suspended and has a center point (32) opposite to the exhaust hole (12). The connection between the first end and the second end includes a connection point (33). Wherein, along the height direction of the exhaust valve seat (10), the thickness of the valve plate (20) is T; along the length direction of the valve plate (20), the distance from the fixing point (31) to the connection point (33) is l; the maximum width of the exhaust hole (12) is d; within the projection of the limiting member (30) along the height direction of the exhaust valve seat (10), the distance between the fixing point (31) and the center point (32) is L; the limiting member (30) and the valve plate (20) are fixedly connected to the exhaust valve seat (10) by fasteners (40); along the length direction of the valve plate (20), the maximum width of the fasteners (40) is D; wherein, T, L, l, d, and D satisfy the following relationship: and The displacement of the compressor is Q, where 7.2cc ≤ Q ≤ 10.8cc.

2. The valve seat assembly according to claim 1, characterized in that, The distance l from the fixed point (31) to the connection point (33) and the maximum width d of the exhaust hole (12) satisfy the following relationship: 0.7≤d / l≤1.

3. The valve seat assembly according to claim 1, characterized in that, The maximum width d of the exhaust hole (12) satisfies the following relationship: d≤7mm.

4. The valve seat assembly according to claim 1, characterized in that, The thickness T of the valve plate (20) satisfies the following relationship: 0.2mm≤T≤0.4mm.

5. The valve seat assembly according to claim 1, characterized in that, Along the height direction of the exhaust valve seat (10), a first through hole (34) is provided through the second end. The projected outer contour of the first through hole (34) is located within the projected outer contour of the exhaust hole (12), and the center of the first through hole (34) is the center point (32).

6. The valve seat assembly according to claim 1, characterized in that, The limiting member (30) includes a plate, the first end of the limiting member (30) is laid flat on the bottom of the mounting groove (11), and the valve plate (20) is at least partially pressed between the first end and the valve seat assembly; and / or, The second end bends away from the valve plate (20) along the height direction of the exhaust valve seat (10).

7. A compressor, characterized in that, Includes the valve seat assembly as described in any one of claims 1 to 6.

8. The compressor according to claim 7, characterized in that, The compressor includes a housing, and the valve seat assembly is disposed within the housing. The maximum width of the housing is H, wherein 92mm≤H≤108mm.

9. The compressor according to claim 7, characterized in that, The compressor includes a motor, the maximum speed of which is Vmax, wherein 6000rpm≤Vmax≤10800rpm.

10. The compressor according to claim 7, characterized in that, The compressor is a single-cylinder rotary compressor.

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