Valve plate, valve group, compressor, refrigeration equipment and vehicle

Abstract

The invention provides a valve plate, a valve group, a compressor, refrigeration equipment and a vehicle. The valve plate comprises a body, the body is provided with an exhaust groove, the groove bottom wall of the exhaust groove is provided with an exhaust port, and the groove side wall of the exhaust groove comprises a flow guide wall; in the direction from the outer edge of the groove bottom wall of the exhaust groove to the groove opening of the exhaust groove, the outer edge of the flow guide wall comprises a first edge and a second edge which are oppositely arranged at an interval; in the direction from the exhaust port to the outer edge of the groove bottom wall of the exhaust groove, the first edge is closer to the groove bottom wall of the exhaust groove than the second edge. According to the compressor, the structure of the valve plate is reasonably arranged, the purpose of reducing local flow loss can be achieved, the over-compression phenomenon can be reduced, the energy consumption of the compressor and the operation noise of the compressor can be reduced, and the use performance of the compressor can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to a valve plate, a valve group, a compressor, a refrigeration device and a vehicle. Background Art

[0002] In related technologies, the valve plate is equipped with an exhaust slot, whose sidewalls are perpendicular to the bottom wall of the slot, and the bottom wall of the slot is equipped with an exhaust port. When the exhaust valve disc in the slot opens the exhaust port, airflow escapes in all directions and strikes the vertical sidewalls of the slot, causing excessive local pressure loss and poor exhaust flow. Furthermore, the high turbulence causes increased exhaust noise. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present application provides a valve plate.

[0005] A second aspect of the present application provides a valve assembly.

[0006] A third aspect of the present application provides a compressor.

[0007] A fourth aspect of the present application provides a refrigeration device.

[0008] A fifth aspect of the present application provides a vehicle.

[0009] In view of this, the first aspect of the present application proposes a valve plate, comprising: a main body, the main body is provided with an exhaust groove, the bottom wall of the exhaust groove is provided with an exhaust port, and the groove side wall of the exhaust groove includes a guide wall; along the direction from the outer edge of the groove bottom wall of the exhaust groove to the groove port of the exhaust groove, the outer edge of the guide wall includes a first side and a second side arranged oppositely and spaced apart; along the direction from the exhaust port to the outer edge of the groove bottom wall of the exhaust groove, the first side is closer to the groove bottom wall of the exhaust groove than the second side.

[0010] The present application provides a valve plate comprising a body, wherein the body is provided with an exhaust groove and an exhaust port.

[0011] The exhaust groove has a groove bottom wall and a groove side wall. One end of the groove side wall of the exhaust groove is connected to the outer edge of the groove bottom wall, and the other end of the groove side wall of the exhaust groove encloses a groove opening of the exhaust groove.

[0012] The bottom wall of the exhaust groove is provided with an exhaust port. The side wall of the exhaust groove includes a guide wall.

[0013] Along the direction from the outer edge of the bottom wall of the exhaust groove to the notch opening of the exhaust groove, the outer edge of the guide wall includes a first side and a second side that are oppositely and spaced apart. That is, along the direction from the bottom wall of the exhaust groove to the notch opening of the exhaust groove, the first side is closer to the bottom wall of the exhaust groove than the second side. In other words, along the direction from the bottom wall of the exhaust groove to the notch opening of the exhaust groove, the distance from the first side to the bottom wall of the exhaust groove is shorter than the distance from the second side to the bottom wall of the exhaust groove.

[0014] Along the direction from the exhaust port to the outer edge of the bottom wall of the exhaust groove, the first side is closer to the bottom wall of the exhaust groove than the second side. That is, along the direction from the exhaust port to the outer edge of the bottom wall of the exhaust groove, the distance from the first side to the bottom wall of the exhaust groove is shorter than the distance from the second side to the bottom wall of the exhaust groove.

[0015] As can be seen, the exhaust groove forms a flared structure at the guide wall. The guide wall has a guiding function. When air flows through the exhaust port to the guide wall of the exhaust groove, the flow loss of the airflow at the guide wall can be reduced. In other words, the purpose of reducing local flow loss can be achieved. In this way, compared with the related art in which the groove sidewall of the exhaust groove is perpendicular to the groove bottom wall of the exhaust groove, it is beneficial to reduce over-compression, reduce the energy consumption of the compressor and the operating noise of the compressor, and improve the performance of the compressor.

[0016] It can be understood that by limiting the structure of the guide wall, the first side is closer to the bottom wall of the exhaust groove than the second side in the direction from the outer edge of the bottom wall of the exhaust groove to the groove opening of the exhaust groove and in the direction from the exhaust opening to the outer edge of the bottom wall of the exhaust groove. Compared with the related technology in which the groove side wall of the exhaust groove is perpendicular to the groove bottom wall of the exhaust groove, this setting increases the area enclosed by the groove side wall of the exhaust groove, increases the effective flow area of ​​the exhaust groove, and can provide a buffer space for the airflow. When the airflow flows into the exhaust groove through the exhaust opening, the expansion of the volume of the exhaust groove will reduce the flow rate of the airflow, can alleviate pressure fluctuations, and slow down the impact of the airflow on the groove wall of the exhaust groove, which is conducive to reducing local flow losses, making the airflow flow smoother and the flow rate distribution more uniform. At the same time, the structural setting of the guide wall enables the airflow to diffuse to the slot mouth of the exhaust slot in a larger range when the airflow flows through the guide wall. The extension trend of the slot side wall of the exhaust slot at the guide wall also has the effect of diffusing the concentrated airflow into a wider coverage area, which is beneficial for the airflow to diffuse from the center to the surrounding areas. When the airflow flows through the guide wall, the guiding effect of the guide wall can reduce the airflow separation and local vortex, reduce friction resistance, make the exhaust process smoother, reduce the energy loss of the airflow, and make the exhaust smoother, so as to improve the phenomenon of large exhaust noise caused by high turbulence.

[0017] In some technical solutions, optionally, the first side is connected to the outer edge of the bottom wall of the exhaust groove; or the first side is spaced apart from the outer edge of the bottom wall of the exhaust groove.

[0018] In this technical solution, the matching structure between the first side of the guide wall and the bottom wall of the exhaust groove is further defined.

[0019] The first side is connected to the outer edge of the bottom wall of the exhaust groove. That is, the guide wall slopes outward from the bottom wall of the exhaust groove. The connection between the guide wall and the bottom wall of the exhaust groove forms a continuous inclined flow channel, allowing a portion of the airflow to flow sequentially along the bottom wall of the exhaust groove, the guide wall, and the notch of the exhaust groove. This makes the flow path of the airflow more continuous, more consistent with the laws of fluid dynamics, significantly reduces flow resistance, and improves exhaust efficiency.

[0020] Alternatively, the first side is spaced apart from the outer edge of the bottom wall of the exhaust groove, that is, the first side is separated from the outer edge of the bottom wall of the exhaust groove, and the airflow flows through the guide wall to the notch of the exhaust groove. This arrangement can prevent the high-speed airflow from forming a jet at the connection between the guide wall and the bottom wall of the exhaust groove. A small buffer zone or expansion zone can be formed at the connection between the guide wall and the bottom wall of the exhaust groove, and the airflow will be redistributed in the area enclosed by the guide wall and the bottom wall of the exhaust groove, and part of the kinetic energy will be converted into pressure energy. In this way, the deceleration of the airflow can be slowed down, the energy can be more dispersed, and the overall vibration and noise of the compressor can be significantly reduced.

[0021] In some technical solutions, optionally, the second side is spaced apart from the notch of the exhaust groove; or the second side encloses a portion of the notch of the exhaust groove.

[0022] In this technical solution, the matching structure between the second side of the guide wall and the notch of the exhaust groove is further defined.

[0023] The second side is spaced apart from the notch of the exhaust slot, that is, the second side is separated from the notch of the exhaust slot. This arrangement can improve the flow state at the end of the exhaust path in the exhaust slot, preventing the high-speed airflow from forming a concentrated jet at the notch of the exhaust slot, directly impacting the cavity wall or other components of the exhaust cavity and causing severe pressure pulsation, thereby further reducing the operating noise of the compressor.

[0024] Or the second side encloses a part of the notch of the exhaust groove, that is, a part of the notch of the exhaust groove is defined by the second side of the guide wall. This setting can optimize the continuity of the airflow path, such as forming a continuous inclined flow channel, so that the airflow can flow smoothly from the first side to the second side, so that the flow rate of the airflow can be gradually reduced, avoiding high friction losses in local high-speed areas, and reducing the turbulence intensity of the airflow, which is beneficial to improving exhaust efficiency.

[0025] In some technical solutions, optionally, the guide wall includes any one of the following or a combination thereof: a curved wall, a spherical wall, and a sloped wall.

[0026] In this technical solution, the types of guide walls are further limited, so that the guide walls include any one of the following or a combination thereof: a curved wall, a spherical wall, and a sloped wall.

[0027] When the guide wall includes a curved wall, it can effectively reduce airflow diversion, eddy current and turbulence, thereby helping to reduce local flow losses, reduce over-compression and reduce energy consumption of the compressor.

[0028] When the guide wall includes a spherical surface, its isotropic curvature and smooth, flat surface offer advantages in airflow guidance and structural reliability. For example, the uniform, flat curvature of the spherical wall aligns with the flow patterns of the gas, minimizing airflow separation, eddies, and turbulence. This helps reduce localized flow losses, over-compression, and compressor energy consumption. Furthermore, this design eliminates stress concentration points, mitigating the risk of localized stress concentration.

[0029] When the guide wall includes a sloped wall, the geometric characteristics of the sloped wall can be used to improve the flow characteristics of the airflow, guide the airflow to flow smoothly in a specific direction, reduce flow separation and vortex, thereby helping to reduce local flow losses, reduce over-compression and reduce the energy consumption of the compressor.

[0030] In some technical solutions, optionally, there are multiple guide walls, and the multiple guide walls include at least a first guide wall and a second guide wall, and the bottom wall of the exhaust groove is located between the first guide wall and the second guide wall.

[0031] In this technical solution, the number and setting positions of the guide walls are limited.

[0032] There are multiple guide walls, which are divided so that the multiple guide walls include at least a first guide wall and a second guide wall, and the bottom wall of the exhaust groove is located between the first guide wall and the second guide wall.

[0033] This arrangement allows airflow to be directed from multiple directions and angles. As air flows through the exhaust port toward the first and second guide walls of the exhaust slot, flow losses at the guide walls are reduced, effectively minimizing localized flow losses. This arrangement balances airflow from multiple directions and locations, optimizing pressure distribution, effectively reducing vibration and wear, and enhancing the valve plate's resistance to deformation.

[0034] In some technical solutions, optionally, the first guide wall and the second guide wall are staggered; or the first guide wall and the second guide wall are oppositely arranged.

[0035] In this technical solution, the matching structure of the first guide wall and the second guide wall is defined.

[0036] The first guide wall and the second guide wall are staggered, that is, the first guide wall and the second guide wall are asymmetrically arranged. This arrangement can optimize the flow path of the airflow, balance the force, disperse the airflow impact point, and help reduce local high pressure and energy loss.

[0037] Alternatively, the first guide wall and the second guide wall are arranged opposite each other, that is, the first guide wall and the second guide wall are arranged symmetrically. This arrangement achieves an optimized balance of airflow, force, and structure through symmetry, thereby making the airflow distribution more uniform, reducing eddy currents and energy loss, effectively reducing vibration and noise, effectively dispersing structural stress, and improving the performance and reliability of the product.

[0038] In some technical solutions, optionally, the exhaust port is located between the first guide wall and the second guide wall.

[0039] In this technical solution, the matching structure of the exhaust port, the first guide wall and the second guide wall is defined.

[0040] Specifically, the exhaust port is located between the first guide wall and the second guide wall. This arrangement can shorten the guide distance between the guide wall and the airflow entering the exhaust slot through the exhaust port, allowing the first guide wall and the second guide wall to guide the airflow in its initial flow direction. The airflow can form laminar flow and orderly turbulence on the surface of the guide wall, further reducing energy loss.

[0041] In addition, when high-pressure gas enters the exhaust groove through the exhaust port, the impact time of the airflow at the first guide wall and the second guide wall is synchronized, so that the pressure peaks on both sides of the exhaust valve plate located in the exhaust groove are superimposed synchronously, avoiding the pressure spike caused by unilateral airflow delay, which is beneficial to reducing the instantaneous stress amplitude of the exhaust valve plate and extending the service life of the valve seat and the exhaust valve plate.

[0042] At the same time, this structural setting has the characteristics of balanced stress distribution, avoiding stress concentration and providing reliable structural support to ensure the performance and service life of the product.

[0043] In some technical solutions, optionally, the main body is further provided with an air intake port, and the first guide wall is located between the air intake port and the second guide wall; the mouth wall of the air intake port is recessed toward the first guide wall and away from the first guide wall.

[0044] In this technical solution, the structure of the valve plate is further defined.

[0045] The main body also has an air intake, and the first guide wall is located between the air intake and the second guide wall. That is, the exhaust groove is located on one side of the air intake. The distance from the first guide wall to the center of the air intake is smaller than the distance from the second guide wall to the center of the air intake.

[0046] The side of the intake port's wall facing the first guide wall is recessed in a direction away from the first guide wall. The shape of the intake port's side facing the first guide wall matches the shape of the first guide wall. This adaptably increases the width of the portion of the body located between the exhaust groove and the intake port, providing structural support for the valve plate and cylinder head to effectively enclose the intake and exhaust cavities. Furthermore, this structural arrangement ensures the structural strength of the portion of the body located between the exhaust groove and the intake port, reduces the deformation of the valve plate, and provides structural support to ensure the performance of the valve plate.

[0047] In some technical solutions, optionally, along the direction from the exhaust port to the outer edge of the bottom wall of the exhaust slot, the maximum distance from the second side of the first guide wall to the center of the exhaust port is smaller than the maximum distance from the second side of the second guide wall to the center of the exhaust port.

[0048] In this technical solution, the matching structure of the exhaust port, the first guide wall and the second guide wall is further defined.

[0049] Along the direction from the exhaust port to the outer edge of the bottom wall of the exhaust slot, the maximum distance from the second side of the first guide wall to the center of the exhaust port is smaller than the maximum distance from the second side of the second guide wall to the center of the exhaust port.

[0050] The valve plate is connected to the cylinder head of the compressor. The body of the valve plate is provided with an air intake port. The cylinder head and the valve plate enclose an air intake cavity. The air intake port is connected to the air intake cavity. This setting rationally utilizes the part of the body between the air intake port and the exhaust port. While ensuring the structural strength of the valve plate, the shape and position of the first guide wall are adaptively set to ensure low flow resistance while taking into account the structural strength and service life of the valve plate.

[0051] The second aspect of the present application proposes a valve group, comprising: an exhaust valve plate; a lift limiter; and a valve plate as in the first aspect, wherein the exhaust valve plate and the lift limiter are both arranged in the exhaust groove, the exhaust valve plate is located between the bottom wall of the exhaust groove and the lift limiter, the exhaust valve plate is used to open or close the exhaust port, and the lift limiter is used to limit the lift of the exhaust valve plate; wherein at least a portion of the guide wall is located on the peripheral side of the exhaust valve plate and the lift limiter.

[0052] Since the valve group provided in the present application includes the valve plate as in the first aspect, it has all the beneficial effects of the above-mentioned valve plate, which will not be described one by one here.

[0053] It is understood that the exhaust valve plate and the lift limiter are both provided in the exhaust groove, with the exhaust valve plate located between the bottom wall of the exhaust groove and the lift limiter. The exhaust valve plate is used to open or close the exhaust port, and the lift limiter is used to limit the lift of the exhaust valve plate.

[0054] At least a portion of the guide wall is located around the exhaust valve disc and the lift limiter. That is, at least a portion of the guide wall is located around the exhaust valve disc, and at least a portion of the guide wall is located around the lift limiter.

[0055] The third aspect of the present application proposes a compressor, comprising: a cylinder head; and a valve group as in the second aspect, wherein the cylinder head is arranged on a valve plate, and the cylinder head and the valve plate enclose an intake chamber and an exhaust chamber, the intake port of the valve plate is connected to the intake chamber, and the exhaust port is connected to the exhaust chamber, and the exhaust valve plate and the lift limiter are both located in the exhaust chamber.

[0056] Since the compressor provided in the present application includes the valve group as in the second aspect, it has all the beneficial effects of the above-mentioned valve group, which will not be described one by one here.

[0057] In some technical solutions, optionally, the cylinder head is provided with a first support portion, the first support portion is located in the exhaust chamber, and the first support portion is used to support the lift limiter; the first support portion is provided with a notch on the side facing the lift limiter, and at least a portion of the notch is arranged opposite to the portion of the guide wall located on the exhaust valve plate and the periphery of the lift limiter.

[0058] In this technical solution, the matching structure of the cylinder head and the valve group is further defined.

[0059] The cylinder head is provided with a first support portion, which is located in the exhaust chamber and is used to support the lift limiter. In other words, the first support portion has the function of supporting and limiting the lift limiter.

[0060] A notch is provided on a side of the first support portion facing the lift limiter, and at least a portion of the notch is arranged opposite to a portion of the guide wall located around the exhaust valve plate and the lift limiter.

[0061] When the exhaust valve plate is separated from the exhaust port to open the exhaust port, part of the air flow can enter the exhaust chamber through the notch, that is, the position setting of the notch has the effect of reducing the exhaust resistance, making the exhaust escape area larger, reducing the exhaust turbulence, and helping to reduce the exhaust resistance, making the exhaust smoother, and reducing the local pressure and flow field turbulence, which is helpful to reduce the exhaust noise, improve the energy efficiency of the compressor, and provide reliable structural support for improving the performance of the product.

[0062] In some technical solutions, optionally, the cylinder head is further provided with at least one second support portion, the second support portion is spaced apart from the first support portion, the second support portion is located in the exhaust chamber, and the second support portion is used to support the lift limiter.

[0063] In this technical solution, the structure of the cylinder head is further defined.

[0064] The cylinder head is further provided with at least one second support portion, the second support portion being located in the exhaust chamber and being used to support the lift limiter. In other words, the first support portion and the at least one second support portion have the function of supporting and limiting the lift limiter.

[0065] Among them, the second support part is arranged at intervals from the first support part. This arrangement reduces the material input of the support part while ensuring the effectiveness and reliability of the first support part and at least one second support part in supporting the lift limiter, which is beneficial to reducing the weight of the cylinder head and reducing the production cost of the cylinder head.

[0066] In some technical solutions, optionally, the cylinder head is further provided with a surrounding plate, which abuts the valve plate and is located between the intake chamber and the exhaust chamber. The first support portion is connected to the surrounding plate, and at least a portion of the notch is located at the connection between the first support portion and the surrounding plate.

[0067] In this technical solution, the matching structure of the cylinder head and the valve group is further defined.

[0068] The cylinder head is further provided with a panel, which abuts against the valve plate and is located between the intake chamber and the exhaust chamber. That is, one end face of the panel forms a portion of the wall of the intake chamber, and the other end face of the panel forms a portion of the wall of the exhaust chamber.

[0069] The enclosing plate abuts against the valve plate to ensure the air tightness of the connection between the enclosing plate and the valve plate, which can ensure the relative independence of the exhaust cavity and the intake cavity, and ensure the sealing of the exhaust cavity and the intake cavity.

[0070] The first support portion is connected to the enclosure, and at least a portion of the notch is located at the junction of the first support portion and the enclosure. This defines the position of the notch. This arrangement ensures the proper positional relationship between the notch and the guide wall, ensuring effective and reliable reduction of exhaust resistance.

[0071] A fourth aspect of the present application provides a refrigeration device, comprising: the compressor in the third aspect.

[0072] Since the refrigeration equipment provided in the present application includes the compressor as in the third aspect, it has all the beneficial effects of the above-mentioned compressor, which will not be described one by one here.

[0073] A fifth aspect of the present application provides a vehicle, comprising: a compressor as in the third aspect.

[0074] Since the vehicle provided in the present application includes the compressor as in the third aspect, it has all the beneficial effects of the above-mentioned compressor, which will not be listed one by one here.

[0075] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0077] Figure 1 A schematic structural diagram of a valve seat from a first perspective according to an embodiment of the present application is shown;

[0078] Figure 2 A schematic structural diagram of a valve seat from a second perspective according to an embodiment of the present application is shown;

[0079] Figure 3 A schematic structural diagram of a valve group according to an embodiment of the present application is shown;

[0080] Figure 4 A first partial structural exploded view of a compressor according to an embodiment of the present application is shown;

[0081] Figure 5 A schematic diagram of the second part of the structure of a compressor according to an embodiment of the present application is shown;

[0082] Figure 6 A schematic structural diagram of a cylinder head according to an embodiment of the present application from a first perspective is shown;

[0083] Figure 7 A structural schematic diagram of a cylinder head according to a second perspective of an embodiment of the present application is shown.

[0084] in, Figures 1 to 7 The corresponding relationship between the reference numerals and component names is as follows:

[0085] 10 valve plate, 100 body, 200 exhaust groove, 210 bottom wall of the exhaust groove, 220 side wall of the exhaust groove, 222 guide wall, 222a first guide wall, 222b second guide wall, 2222 first side, 2224 second side, 230 notch of the exhaust groove, 300 exhaust port, 400 intake port, 50 valve group, 500 exhaust valve plate, 600 lift limiter, 70 compressor, 700 cylinder head, 710 first support part, 712 notch, 720 second support part, 730 enclosure, 810 intake chamber, 820 exhaust chamber. DETAILED DESCRIPTION

[0086] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0087] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0088] Refer to the following Figures 1 to 7 The valve plate 10 , the valve group 50 , the compressor 70 , the refrigeration equipment and the vehicle according to some embodiments of the present application are described.

[0089] like Figure 1 and Figure 4 As shown, a valve plate 10 according to some embodiments of the present application includes a body 100 , the body 100 is provided with an exhaust groove 200 , and the bottom wall 210 of the exhaust groove is provided with an exhaust port 300 .

[0090] The groove sidewall 220 of the exhaust groove includes a guide wall 222 .

[0091] like Figure 2 As shown, along the direction from the outer edge of the groove bottom wall 210 of the exhaust groove to the groove opening 230 of the exhaust groove, the outer edge of the guide wall 222 includes a first side 2222 and a second side 2224 that are opposite and spaced apart.

[0092] Along the direction from the exhaust port 300 to the outer edge of the groove bottom wall 210 of the exhaust groove, the first side 2222 is closer to the groove bottom wall 210 of the exhaust groove than the second side 2224 .

[0093] The present application provides a valve plate 10 including a body 100 . The body 100 is provided with an exhaust groove 200 . The bottom wall 210 of the exhaust groove is provided with an exhaust port 300 .

[0094] The exhaust groove 200 has a groove bottom wall and a groove side wall. One end of the groove side wall 220 of the exhaust groove is connected to the outer edge of the groove bottom wall, and the other end of the groove side wall 220 of the exhaust groove encloses a groove opening 230 of the exhaust groove.

[0095] The bottom wall 210 of the exhaust groove is provided with an exhaust port 300 . The side wall 220 of the exhaust groove includes a guide wall 222 .

[0096] Along the direction from the outer edge of the exhaust groove bottom wall 210 to the exhaust groove opening 230, the outer edge of the guide wall 222 includes a first side 2222 and a second side 2224 that are oppositely and spaced apart. That is, along the direction from the exhaust groove bottom wall 210 to the exhaust groove opening 230, the first side 2222 is closer to the exhaust groove bottom wall 210 than the second side 2224. In other words, along the direction from the exhaust groove bottom wall 210 to the exhaust groove opening 230, the distance from the first side 2222 to the exhaust groove bottom wall 210 is shorter than the distance from the second side 2224 to the exhaust groove bottom wall 210.

[0097] Along the direction from the exhaust port 300 to the outer edge of the exhaust groove bottom wall 210, the first side 2222 is closer to the exhaust groove bottom wall 210 than the second side 2224. That is, along the direction from the exhaust port 300 to the outer edge of the exhaust groove bottom wall 210, the distance from the first side 2222 to the exhaust groove bottom wall 210 is shorter than the distance from the second side 2224 to the exhaust groove bottom wall 210.

[0098] It can be seen that the exhaust groove 200 forms a flared structure at the guide wall 222. The guide wall 222 has a guiding function. When the airflow flows through the exhaust port 300 to the guide wall 222 of the exhaust groove 200, the flow loss of the airflow at the guide wall 222 can be reduced, that is, the purpose of reducing local flow loss can be achieved. In this way, compared with the related art in which the groove side wall of the exhaust groove is perpendicular to the groove bottom wall of the exhaust groove, it is beneficial to reduce the over-compression phenomenon, reduce the energy consumption of the compressor 70 and the operating noise of the compressor 70, and improve the performance of the compressor 70.

[0099] It can be understood that by limiting the structure of the guide wall 222, the first side 2222 is closer to the bottom wall 210 of the exhaust groove than the second side 2224 in the direction from the outer edge of the bottom wall 210 of the exhaust groove to the groove opening 230 of the exhaust groove and in the direction from the exhaust opening 300 to the outer edge of the bottom wall 210 of the exhaust groove. Compared with the groove side wall of the exhaust groove perpendicular to the groove bottom wall of the exhaust groove in the related technology, this setting increases the area enclosed by the groove side wall 220 of the exhaust groove, increases the effective flow area of ​​the exhaust groove 200, and can provide a buffer space for the airflow. When the airflow flows into the exhaust groove 200 through the exhaust opening 300, the expansion of the volume of the exhaust groove 200 will reduce the flow rate of the airflow, can alleviate pressure fluctuations, and slow down the impact of the airflow on the groove wall of the exhaust groove 200, which is conducive to reducing local flow losses, making the airflow flow smoother and the flow rate distribution more uniform. At the same time, the structural setting of the guide wall 222 enables the airflow to diffuse to the slot 230 of the exhaust slot in a larger range when it flows through the guide wall 222. The extension trend of the slot side wall 220 of the exhaust slot at the guide wall 222 also has the effect of diffusing the concentrated airflow into a wider coverage area, which is beneficial for the airflow to diffuse from the center to the surrounding areas. When the airflow flows through the guide wall 222, the guiding effect of the guide wall 222 can reduce airflow separation and local vortexes, reduce friction resistance, make the exhaust process smoother, reduce the energy loss of the airflow, and make the exhaust smoother, so as to improve the phenomenon of large exhaust noise caused by high turbulence.

[0100] In some embodiments, for example, the first side 2222 is connected to the outer edge of the groove bottom wall 210 of the exhaust groove.

[0101] Alternatively, the first side 2222 is spaced apart from the outer edge of the bottom wall 210 of the exhaust groove.

[0102] In this embodiment, the matching structure between the first side 2222 of the guide wall 222 and the bottom wall 210 of the exhaust groove is further defined.

[0103] The first edge 2222 is connected to the outer edge of the exhaust groove bottom wall 210. That is, the guide wall 222 is inclined and spreads outward from the exhaust groove bottom wall 210. The connection between the guide wall 222 and the exhaust groove bottom wall 210 forms a continuous inclined flow channel, allowing a portion of the airflow to flow sequentially along the exhaust groove bottom wall 210, the guide wall 222, and the exhaust groove notch 230. This makes the airflow path more continuous, more consistent with the laws of fluid dynamics, significantly reduces flow resistance, and improves exhaust efficiency.

[0104] Alternatively, the first side 2222 is spaced apart from the outer edge of the exhaust groove bottom wall 210, that is, the first side 2222 is separated from the outer edge of the exhaust groove bottom wall 210, and the airflow flows through the guide wall 222 to the notch 230 of the exhaust groove. This arrangement can prevent the high-speed airflow from forming a jet at the connection between the guide wall 222 and the exhaust groove bottom wall 210. A small buffer zone or expansion zone can be formed at the connection between the guide wall 222 and the exhaust groove bottom wall 210, and the airflow will be redistributed within the area enclosed by the guide wall 222 and the exhaust groove bottom wall 210, and the kinetic energy will be partially converted into pressure energy. In this way, the deceleration of the airflow can be slowed down, the energy can be more dispersed, and the overall vibration and noise of the compressor 70 can be significantly reduced.

[0105] In some embodiments, for example, the second side 2224 is spaced apart from the notch 230 of the exhaust slot.

[0106] Alternatively, the second side 2224 encloses a portion of the notch 230 of the exhaust slot.

[0107] In this embodiment, the matching structure between the second edge 2224 of the guide wall 222 and the notch 230 of the exhaust slot is further defined.

[0108] The second side 2224 is spaced apart from the notch 230 of the exhaust slot, that is, the second side 2224 is separated from the notch 230 of the exhaust slot. This arrangement can improve the flow state at the end of the exhaust path within the exhaust slot 200, preventing the high-speed airflow from forming a concentrated jet at the notch 230 of the exhaust slot, which would directly impact the cavity wall of the exhaust cavity 820 or other components and cause severe pressure pulsation, thereby further reducing the operating noise of the compressor 70.

[0109] Or the second side 2224 encloses a portion of the notch 230 of the exhaust groove, that is, a portion of the notch 230 of the exhaust groove is defined by the second side 2224 of the guide wall 222. This setting can optimize the continuity of the airflow path, such as forming a continuous inclined flow channel, so that the airflow can flow smoothly from the first side 2222 to the second side 2224, so that the flow rate of the airflow can be gradually reduced, avoiding high friction losses in local high-speed areas, and reducing the turbulence intensity of the airflow, which is beneficial to improving the exhaust efficiency.

[0110] In some embodiments, for example, the guide wall 222 includes any one of the following or a combination thereof: a curved wall, a spherical wall, and a sloped wall.

[0111] In this embodiment, the type of the guide wall 222 is further limited, so that the guide wall 222 includes any one of the following or a combination thereof: a curved wall, a spherical wall, and a sloped wall.

[0112] When the guide wall 222 includes a curved wall, it can effectively reduce airflow diversion, eddy current and turbulence, thereby helping to reduce local flow losses, reduce over-compression and reduce energy consumption of the compressor 70 .

[0113] When guide wall 222 comprises a spherical wall, the spherical wall has isotropic curvature and a smooth surface without sharp corners, making guide wall 222 more advantageous in terms of airflow guidance and structural reliability. For example, the uniform curvature and lack of sharp corners of the spherical wall align with the flow patterns of the gas, minimizing airflow separation, eddies, and turbulence, thereby reducing localized flow losses, over-compression, and energy consumption of compressor 70. Furthermore, this configuration eliminates stress concentration points, thereby alleviating the risk of localized stress concentration.

[0114] When the guide wall 222 includes a sloped wall, the geometric characteristics of the sloped wall can be used to improve the flow characteristics of the airflow, guide the airflow to flow smoothly in a specific direction, reduce flow separation and vortex, thereby helping to reduce local flow losses, reduce over-compression and reduce the energy consumption of the compressor 70.

[0115] In some embodiments, for example, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, there are multiple guide walls 222 , and the multiple guide walls 222 include at least a first guide wall 222 a and a second guide wall 222 b .

[0116] The bottom wall 210 of the exhaust groove is located between the first guide wall 222 a and the second guide wall 222 b .

[0117] In this embodiment, the number and arrangement positions of the guide walls 222 are limited.

[0118] There are multiple guide walls 222 , which are divided into at least a first guide wall 222 a and a second guide wall 222 b . The bottom wall 210 of the exhaust groove is located between the first guide wall 222 a and the second guide wall 222 b .

[0119] This arrangement allows airflow to be directed from multiple directions and angles. As air flows through the exhaust port 300 toward the first and second guide walls 222a, 222b of the exhaust slot 200, flow losses at the guide walls 222 are reduced, effectively reducing localized flow losses. This arrangement balances airflow from multiple directions and locations, optimizing pressure distribution, effectively reducing vibration and wear, and enhancing the valve plate 10's ability to resist deformation.

[0120] Exemplarily, the number of the first guide wall 222a is at least one, and the number of the second guide wall 222b is at least one.

[0121] In some embodiments, for example, the first guide wall 222a and the second guide wall 222b are staggered.

[0122] Alternatively, the first guide wall 222a and the second guide wall 222b are arranged opposite to each other.

[0123] In this embodiment, a matching structure of the first guide wall 222a and the second guide wall 222b is defined.

[0124] The first guide wall 222a and the second guide wall 222b are staggered, that is, the first guide wall 222a and the second guide wall 222b are asymmetrically arranged. This arrangement can optimize the flow path of the airflow, balance the force, disperse the airflow impact point, and help reduce local high pressure and energy loss.

[0125] Alternatively, the first guide wall 222a and the second guide wall 222b are arranged opposite each other, that is, the first guide wall 222a and the second guide wall 222b are arranged symmetrically. This arrangement achieves an optimized balance of airflow, force, and structure through symmetry, thereby making the airflow distribution more uniform, reducing eddy currents and energy loss, effectively reducing vibration and noise, effectively dispersing structural stress, and improving the performance and reliability of the product.

[0126] Exemplarily, the first guide wall 222a and the second guide wall 222b have the same shape.

[0127] Exemplarily, the first guide wall 222a and the second guide wall 222b have different shapes.

[0128] In some embodiments, for example, Figure 1 and Figure 2 As shown, the exhaust port 300 is located between the first guide wall 222a and the second guide wall 222b.

[0129] In this embodiment, the exhaust port 300 , the first guide wall 222 a , and the second guide wall 222 b are defined by a matching structure.

[0130] Specifically, the exhaust port 300 is located between the first guide wall 222a and the second guide wall 222b. This arrangement can shorten the guide distance between the guide wall 222 and the airflow entering the exhaust slot 200 through the exhaust port 300, allowing the first guide wall 222a and the second guide wall 222b to guide the airflow in its initial flow direction. The airflow can form laminar flow and orderly turbulence on the surface of the guide wall 222, thereby further reducing energy loss.

[0131] In addition, when the high-pressure gas enters the exhaust groove 200 through the exhaust port 300, the impact time of the airflow at the first guide wall 222a and the second guide wall 222b is synchronized, so that the pressure peaks on both sides of the exhaust valve plate 500 located in the exhaust groove 200 are synchronously superimposed, avoiding the pressure spike caused by unilateral airflow delay, which is beneficial to reducing the instantaneous stress amplitude of the exhaust valve plate 500 and extending the service life of the valve seat and the exhaust valve plate 500.

[0132] At the same time, this structural setting has the characteristics of balanced stress distribution, avoiding stress concentration and providing reliable structural support to ensure the performance and service life of the product.

[0133] In some embodiments, for example, Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the main body 100 is further provided with an air intake 400 .

[0134] The first guide wall 222a is located between the air inlet 400 and the second guide wall 222b.

[0135] The side of the inlet wall of the air inlet 400 facing the first flow guide wall 222 a is recessed in a direction away from the first flow guide wall 222 a .

[0136] In this embodiment, the structure of the valve plate 10 is further defined.

[0137] The main body 100 also has an air intake 400, with the first guide wall 222a located between the air intake 400 and the second guide wall 222b. In other words, the exhaust slot 200 is located on one side of the air intake 400. The distance from the first guide wall 222a to the center of the air intake 400 is shorter than the distance from the second guide wall 222b to the center of the air intake 400.

[0138] The side of the mouth wall of the air intake port 400 facing the first guide wall 222a is recessed in a direction away from the first guide wall 222a. The shape of the side of the air intake port 400 facing the first guide wall 222a is adapted to the shape of the first guide wall 222a. In this way, the width of the portion of the body 100 located between the exhaust groove 200 and the air intake port 400 can be adaptively increased, providing structural support for the valve plate 10 and the cylinder head 700 to effectively enclose the intake cavity 810 and the exhaust cavity 820. At the same time, this structural arrangement can also ensure the structural strength of the portion of the body 100 located between the exhaust groove 200 and the air intake port 400, reduce the deformation of the valve plate 10, and provide structural support to ensure the performance of the valve plate 10.

[0139] In some embodiments, for example, along the direction from the exhaust port 300 to the outer edge of the bottom wall 210 of the exhaust slot, the maximum distance from the second side 2224 of the first guide wall 222a to the center of the exhaust port 300 is less than the maximum distance from the second side 2224 of the second guide wall 222b to the center of the exhaust port 300.

[0140] In this embodiment, the matching structure of the exhaust port 300, the first guide wall 222a and the second guide wall 222b is further defined.

[0141] Along the direction from the exhaust port 300 to the outer edge of the bottom wall 210 of the exhaust groove, the maximum distance from the second side 2224 of the first guide wall 222a to the center of the exhaust port 300 is smaller than the maximum distance from the second side 2224 of the second guide wall 222b to the center of the exhaust port 300.

[0142] The valve plate 10 is connected to the cylinder head 700 of the compressor 70. The main body 100 of the valve plate 10 is provided with an air intake port 400. The cylinder head 700 and the valve plate 10 enclose an air intake cavity 810. The air intake port 400 is connected to the air intake cavity 810. This arrangement rationally utilizes the portion of the main body 100 located between the air intake port 400 and the exhaust port 300. While ensuring the structural strength of the valve plate 10, the shape and position of the first guide wall 222a are adaptively set to ensure low flow resistance while taking into account the structural strength and service life of the valve plate 10.

[0143] like Figure 3 and Figure 4 As shown, a valve assembly 50 according to some further embodiments of the present application includes an exhaust valve plate 500 , a lift limiter 600 and the valve plate 10 of any of the above embodiments.

[0144] The exhaust valve plate 500 and the lift limiter 600 are both disposed in the exhaust groove 200 .

[0145] The exhaust valve plate 500 is located between the bottom wall 210 of the exhaust groove and the lift limiter 600 .

[0146] The exhaust valve plate 500 is used to open or close the exhaust port 300 .

[0147] The lift limiter 600 is used to limit the lift of the exhaust valve plate 500 .

[0148] At least a portion of the guide wall 222 is located around the exhaust valve plate 500 and the lift limiter 600 .

[0149] Since the valve assembly 50 provided in the present application includes the valve plate 10 of any of the above embodiments, it has all the beneficial effects of the above valve plate 10, which will not be described one by one here.

[0150] It is understood that the exhaust valve disc 500 and the lift limiter 600 are both disposed in the exhaust groove 200, with the exhaust valve disc 500 located between the groove bottom wall 210 of the exhaust groove and the lift limiter 600. The exhaust valve disc 500 is used to open or close the exhaust port 300, and the lift limiter 600 is used to limit the lift of the exhaust valve disc 500.

[0151] At least a portion of the guide wall 222 is located around the exhaust valve disc 500 and the lift stopper 600. In other words, at least a portion of the guide wall 222 is located around the exhaust valve disc 500, and at least a portion of the guide wall 222 is located around the lift stopper 600.

[0152] like Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, a compressor 70 according to some further embodiments of the present application includes a cylinder head 700 and the valve group 50 of the above embodiment.

[0153] The cylinder head 700 is provided on the valve plate 10 .

[0154] The cylinder head 700 and the valve plate 10 enclose an intake chamber 810 and an exhaust chamber 820 .

[0155] The air intake port 400 of the valve plate 10 is connected to the air intake cavity 810 .

[0156] The exhaust port 300 is connected to the exhaust cavity 820 .

[0157] The exhaust valve plate 500 and the lift limiter 600 are both located in the exhaust chamber 820 .

[0158] The compressor 70 provided in the present application includes the valve group 50 of the above embodiment and therefore has all the beneficial effects of the above valve group 50 , which will not be described one by one here.

[0159] In some embodiments, for example, Figure 6 and Figure 7 As shown, the cylinder head 700 is provided with a first support portion 710 .

[0160] The first supporting portion 710 is located in the exhaust cavity 820 .

[0161] The first support portion 710 is used to support the lift limiter 600 .

[0162] A notch 712 is defined on a side of the first support portion 710 facing the lift limiter 600 .

[0163] At least a portion of the notch 712 is disposed opposite to a portion of the guide wall 222 located around the exhaust valve plate 500 and the lift limiter 600 .

[0164] In this embodiment, the matching structure between the cylinder head 700 and the valve group 50 is further defined.

[0165] The cylinder head 700 is provided with a first support portion 710 , which is located in the exhaust chamber 820 and is used to support the lift limiter 600 . That is, the first support portion 710 has the function of supporting and limiting the lift limiter 600 .

[0166] A notch 712 is defined on a side of the first support portion 710 facing the lift check 600. At least a portion of the notch 712 is disposed opposite a portion of the guide wall 222 located around the exhaust valve disc 500 and the lift check 600. In other words, at least a portion of the notch 712 is disposed opposite a portion of the guide wall 222 located around the exhaust valve disc 500, and at least a portion of the notch 712 is disposed opposite a portion of the guide wall 222 located around the lift check 600.

[0167] When the exhaust valve plate 500 is separated from the exhaust port 300 to open the exhaust port 300, part of the airflow can enter the exhaust chamber 820 through the notch 712. That is, the position setting of the notch 712 has the effect of reducing the exhaust resistance, making the exhaust escape area larger, reducing the exhaust turbulence, and helping to reduce the exhaust resistance, making the exhaust smoother, and reducing the local pressure and flow field turbulence, which is helpful to reduce the exhaust noise, and is beneficial to improving the energy efficiency of the compressor 70, providing reliable structural support for improving the performance of the product.

[0168] In some embodiments, for example, Figure 6 and Figure 7 As shown, the cylinder head 700 is further provided with at least one second supporting portion 720 .

[0169] The second support portion 720 is spaced apart from the first support portion 710 .

[0170] The second support portion 720 is located in the exhaust cavity 820 , and the second support portion 720 is used to support the lift limiter 600 .

[0171] In this embodiment, the structure of the cylinder head 700 is further defined.

[0172] The cylinder head 700 is further provided with at least one second support portion 720, which is located in the exhaust chamber 820 and is used to support the lift limiter 600. In other words, the first support portion 710 and the at least one second support portion 720 have the function of supporting and limiting the lift limiter 600.

[0173] Among them, the second support part 720 is arranged at intervals from the first support part 710. This arrangement ensures the effectiveness and reliability of the first support part 710 and at least one second support part 720 in supporting the lift limiter 600, while reducing the material input of the support part, which is beneficial to reducing the weight of the cylinder head 700 and reducing the production cost of the cylinder head 700.

[0174] Exemplarily, the number of the second supporting portion is one.

[0175] Exemplarily, the number of the second support portions 720 is greater than or equal to two. Some of the second support portions 720 are located on the first side of the first support portion 710, and other parts of the second support portions 720 are located on the second side of the first support portion 710. The first side of the first support portion 710 and the second side of the first support portion 710 are opposite sides of the first support portion 710.

[0176] In some embodiments, for example, Figure 6 and Figure 7 As shown, the cylinder head 700 is further provided with a surrounding plate 730 .

[0177] The surrounding plate 730 abuts against the valve plate 10 .

[0178] The enclosure 730 is located between the air intake chamber 810 and the air discharge chamber 820 .

[0179] The first support portion 710 is connected to the enclosure panel 730 .

[0180] The notch 712 is located at the connection between the first support portion 710 and the enclosure 730 .

[0181] In this embodiment, the matching structure between the cylinder head 700 and the valve group 50 is further defined.

[0182] The cylinder head 700 is further provided with a surrounding plate 730, which abuts the valve plate 10 and is located between the intake chamber 810 and the exhaust chamber 820. Specifically, one end surface of the surrounding plate 730 forms a portion of the wall of the intake chamber 810, while the other end surface of the surrounding plate 730 forms a portion of the wall of the exhaust chamber 820.

[0183] The surrounding plate 730 abuts against the valve plate 10 to ensure the airtightness of the connection between the surrounding plate 730 and the valve plate 10, and can ensure the relative independence of the exhaust cavity 820 and the intake cavity 810 to ensure the sealing of the exhaust cavity 820 and the intake cavity 810.

[0184] The first support portion 710 is connected to the enclosure 730, and at least a portion of the notch 712 is located at the connection between the first support portion 710 and the enclosure 730. This defines the position of the notch 712. This arrangement ensures a consistent positional relationship between the notch 712 and the guide wall 222, thereby ensuring effective and reliable reduction of exhaust resistance.

[0185] According to some further embodiments of the present application, a refrigeration device includes: the compressor 70 in the above embodiment.

[0186] Since the refrigeration equipment provided in the present application includes the compressor 70 in the above embodiment, it has all the beneficial effects of the above compressor 70, which will not be described one by one here.

[0187] According to some further embodiments of the present application, a vehicle includes: the compressor 70 in the above embodiment.

[0188] Since the vehicle provided in the present application includes the compressor 70 in the above embodiment, it has all the beneficial effects of the above compressor 70, which will not be described one by one here.

[0189] Illustratively, refrigeration equipment includes refrigerators, freezers, and freezers, etc., which are not listed here one by one.

[0190] For example, the vehicle may be a new energy vehicle, which includes pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0191] The vehicle may also be a gasoline-powered vehicle.

[0192] Illustratively, compressor 70 is a reciprocating compressor.

[0193] Exemplarily, the compressor 70 includes a cylinder head 700, a lift limiter 600, an exhaust valve disc 500, and a valve plate 10. The exhaust valve disc 500 and the lift limiter 600 are both mounted in the exhaust groove 200 of the valve plate 10. The cylinder head 700 and the valve plate 10 enclose an intake chamber 810 and an exhaust chamber 820. On the valve plate 10, circular beveled cutout structures are provided at corresponding positions on both sides of the exhaust port 300. The circular beveled cutout structures on both sides are respectively a first guide wall 222a and a second guide wall 222b. The cylinder head 700 is provided with a first support portion 710, which is used to support the lift limiter 600. The first support portion 710 is provided with a notch 712 on the side facing the lift limiter 600. At least a portion of the notch 712 is arranged opposite to the portion of the guide wall 222 located on the circumference of the exhaust valve disc 500 and the lift limiter 600. This arrangement helps reduce exhaust turbulence, lowers exhaust resistance, reduces exhaust noise, and improves the energy efficiency of compressor 70. Furthermore, this arrangement increases the exhaust gas escape area, makes exhaust more fluid, reduces local pressure and flow field turbulence, and helps reduce the energy consumption of compressor 70.

[0194] In this application, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integrally connected; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0195] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A valve plate, characterized in that: include: A main body, wherein the main body is provided with an exhaust groove, the bottom wall of the exhaust groove is provided with an exhaust port, and the groove side wall of the exhaust groove includes a guide wall; Along the direction from the outer edge of the bottom wall of the exhaust groove to the notch of the exhaust groove, the outer edge of the guide wall includes a first side and a second side that are opposite and spaced apart; Along a direction from the exhaust port to an outer edge of a groove bottom wall of the exhaust groove, the first side is closer to the groove bottom wall of the exhaust groove than the second side.

2. The valve plate according to claim 1, characterized in that The first side is connected to the outer edge of the bottom wall of the exhaust groove; or The first side is spaced apart from the outer edge of the bottom wall of the exhaust groove.

3. The valve plate according to claim 1 or 2, characterized in that: The second side is spaced apart from the notch of the exhaust slot; or The second side encloses a portion of the notch of the exhaust slot.

4. The valve plate according to claim 1 or 2, characterized in that: The guide wall includes any one of the following or a combination thereof: a curved wall, a spherical wall and a sloped wall.

5. The valve plate according to claim 1 or 2, characterized in that: There are multiple guide walls, and the multiple guide walls include at least a first guide wall and a second guide wall. The bottom wall of the exhaust groove is located between the first guide wall and the second guide wall.

6. The valve plate according to claim 5, characterized in that The first guide wall and the second guide wall are staggered; or The first guide wall and the second guide wall are arranged opposite to each other.

7. The valve plate according to claim 5, characterized in that The exhaust port is located between the first guide wall and the second guide wall.

8. The valve plate according to claim 5, characterized in that The body is further provided with an air intake port, and the first guide wall is located between the air intake port and the second guide wall; A side of the air inlet wall facing the first guide wall is recessed in a direction away from the first guide wall.

9. The valve plate according to claim 8, characterized in that Along the direction from the exhaust port to the outer edge of the bottom wall of the exhaust groove, the maximum distance from the second side of the first guide wall to the center of the exhaust port is smaller than the maximum distance from the second side of the second guide wall to the center of the exhaust port.

10. A valve group, characterized in that: include: Exhaust valve plate; lift limiter; and The valve plate according to any one of claims 1 to 9, wherein the exhaust valve disc and the lift limiter are both provided in the exhaust groove, the exhaust valve disc is located between the bottom wall of the exhaust groove and the lift limiter, the exhaust valve disc is used to open or close the exhaust port, and the lift limiter is used to limit the lift of the exhaust valve disc; Wherein, at least a portion of the guide wall is located on the peripheral side of the exhaust valve plate and the lift limiter.

11. A compressor, characterized in that: include: cylinder head; and According to the valve group as described in claim 10, the cylinder head is arranged on the valve plate, the cylinder head and the valve plate enclose an intake chamber and an exhaust chamber, the intake port of the valve plate is connected to the intake chamber, the exhaust port is connected to the exhaust chamber, and the exhaust valve plate and the lift limiter are both located in the exhaust chamber.

12. The compressor according to claim 11, characterized in that The cylinder head is provided with a first support portion, the first support portion is located in the exhaust chamber, and the first support portion is used to support the lift limiter; A notch is provided on a side of the first support portion facing the lift limiter, and at least a portion of the notch is arranged opposite to a portion of the guide wall located around the exhaust valve plate and the lift limiter.

13. The compressor according to claim 12, characterized in that The cylinder head is further provided with at least one second supporting portion, the second supporting portion is spaced apart from the first supporting portion, the second supporting portion is located in the exhaust chamber, and the second supporting portion is used to support the lift limiter.

14. The compressor according to claim 12 or 13, characterized in that The cylinder head is further provided with a surrounding plate, which abuts against the valve plate and is located between the intake chamber and the exhaust chamber. The first support portion is connected to the surrounding plate, and at least a portion of the notch is located at the connection between the first support portion and the surrounding plate.

15. A refrigeration device, characterized in that: include: A compressor as claimed in any one of claims 11 to 14.

16. A vehicle, characterized in that: include: A compressor as claimed in any one of claims 11 to 14.

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