Air suction valve plate, valve group, compressor, refrigeration equipment and vehicle

Abstract

The invention relates to the technical field of compressors. The invention provides an air suction valve plate, a valve group, a compressor, refrigeration equipment and a vehicle. The air suction valve plate comprises a body provided with a plurality of openings; each valve flap is arranged at the corresponding opening, each valve flap is provided with a fixed end and a free end, and the fixed ends are connected with the body; wherein the masses of at least two of the valve tongues are different, and / or the rigidities of at least two of the valve tongues are different. The structure of the air suction valve plate is reasonably arranged, so that the opening and closing frequencies of at least two of the valve flaps are different, in this way, it is guaranteed that in the air suction process of the compressor, an air suction silencer of the compressor and an air cylinder of the compressor are always kept in a communicating state, air suction pressure and pressure fluctuation in the air cylinder in the air suction process are reduced, air suction loss can be reduced, and the air suction efficiency is improved. And the efficiency of the compressor is improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and more specifically, to a suction valve plate, a valve assembly, a compressor, a refrigeration device, and a vehicle. Background Art

[0002] In the related art, a compressor includes a cylinder, a suction valve plate, and a muffler. The suction valve plate is a valve plate with a single valve tongue. The oscillation of the valve tongue during the suction process is an inherent property of the suction valve plate, that is, the opening and closing frequency of the valve tongue is fixed. During the oscillation of the valve tongue, there is a short - time disconnection between the cylinder and the muffler, resulting in large fluctuations in the pressure inside the cylinder and the pressure of the muffler, causing a large suction loss and affecting the efficiency of the compressor. Summary of the Invention

[0003] The present application aims to at least solve the technical problem in the prior art or related art that, due to the suction valve plate being a valve plate with a single valve tongue, during the oscillation of the valve tongue, there is a short - time disconnection between the cylinder and the muffler, resulting in large fluctuations in the pressure inside the cylinder and the pressure of the muffler, causing a large suction loss and affecting the efficiency of the compressor.

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

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

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

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

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

[0009] In view of this, a first aspect of the present application proposes a suction valve plate, including: a body provided with a plurality of openings; a plurality of valve tongues, each valve tongue being disposed at one opening, the valve tongue having a fixed end and a free end, the fixed end being connected to the body; wherein, at least two of the plurality of valve tongues have different masses, and / or at least two of the plurality of valve tongues have different stiffnesses.

[0010] A suction valve plate provided by the present application includes a body and a plurality of valve tongues.

[0011] The body is provided with a plurality of openings, the number of valve tongues is plural, and each valve tongue is disposed at one opening. The number of valve tongues is the same as the number of openings, and the plurality of valve tongues and the plurality of openings are in one - to - one correspondence and cooperation.

[0012] Specifically, the valve tongue has a fixed end and a free end. The fixed end is connected to the body. There is a gap between the part of the valve tongue between the fixed end and the free end and the wall of the opening. In other words, there is a gap between the non-fixed end part of the valve tongue and the wall of the opening. That is, the non-fixed end part of the valve tongue can move relative to the body between a first position and a second position. When the non-fixed end part of the valve tongue is in the first position, the suction valve plate closes the suction valve opening on the valve plate. When the non-fixed end part of the valve tongue is in the second position, the suction valve plate opens the suction valve opening on the valve plate. That is to say, the valve tongue has the function of opening or closing the suction valve opening on the valve plate.

[0013] Among them, the mass and stiffness of the valve tongue will affect the opening and closing frequency of the valve tongue. In this application, at least two of the multiple valve tongues have different masses, and / or at least two of the multiple valve tongues have different stiffnesses. That is, at least two of the multiple valve tongues have different opening and closing frequencies. For example, the opening and closing frequencies of two valve tongues are different. For example, the opening and closing frequencies of three valve tongues are all different. For example, the opening and closing frequencies of four valve tongues are all different, etc., which will not be listed one by one here.

[0014] By setting the structure of multiple valve tongues, at least two of the multiple valve tongues have different opening and closing frequencies. In this way, during the suction process of the compressor, the suction muffler of the compressor and the cylinder of the compressor always remain in a connected state, reducing the pressure fluctuations in the suction pressure and the cylinder during the suction process, being able to reduce the suction loss, which is beneficial to improving the efficiency of the compressor. At the same time, because at least two of the multiple valve tongues have different opening and closing frequencies, when approaching the end of suction, the reset times of at least two valve tongues are different. When one of the valve tongues is reset, it will cause the pressure in the cylinder to rise rapidly, which will accelerate the reset of the remaining valve tongues. In this way, it is beneficial to reduce the suction backflow and is beneficial to increasing the suction flow rate. Among them, the reset position of the valve tongue is the first position where the valve tongue closes the suction valve opening on the valve plate.

[0015] In some technical solutions, optionally, two valve tongues with at least one of the mass and stiffness being different are respectively denoted as the first valve tongue and the second valve tongue; at least a part of the first valve tongue has a different width in a first direction from the second valve tongue; either the direction from the free end to the fixed end or the thickness direction of the suction valve plate is perpendicular to the first direction.

[0016] In this technical solution, the structure of multiple valve tongues is further defined.

[0017] Two valve tongues with at least one of the mass and stiffness being different are respectively denoted as the first valve tongue and the second valve tongue. That is, the first valve tongue and the second valve tongue have different opening and closing frequencies.

[0018] At least a part of the first valve tongue has a different width in the first direction from that of the second valve tongue, that is, at least a part of the first valve tongue and the second valve tongue located at the same position has different widths in the first direction, and either the direction from the free end to the fixed end or the thickness direction of the intake valve plate is perpendicular to the first direction. For example, the valve tongue is divided such that the valve tongue is divided into a starting part, an intermediate part, and an ending part in the direction from the fixed end to the free end. The starting part of the first valve tongue and the starting part of the second valve tongue have different widths in the first direction, and / or the intermediate part of the first valve tongue and the intermediate part of the second valve tongue have different widths in the first direction, and / or the ending part of the first valve tongue and the ending part of the second valve tongue have different widths in the first direction.

[0019] By defining that the widths of the first valve tongue and the second valve tongue are different in the first direction, the purpose of making the masses of the first valve tongue and the second valve tongue different and / or the stiffnesses of the first valve tongue and the second valve tongue different is achieved. That is to say, by defining the widths of the first valve tongue and the second valve tongue to be different in the first direction, the purpose of making the opening and closing frequencies of the first valve tongue and the second valve tongue different is achieved, providing effective and reliable structural support for reducing intake loss and intake backflow.

[0020] In some technical solutions, optionally, the minimum width of the first valve tongue in the first direction is denoted as D, and the minimum width of the second valve tongue in the first direction is denoted as d, and D > d.

[0021] In this technical solution, the mating structure of the first valve tongue and the second valve tongue is further defined such that the minimum width of the first valve tongue in the first direction is denoted as D, and the minimum width of the second valve tongue in the first direction is denoted as d, and D > d.

[0022] That is to say, the minimum widths of the first valve tongue and the second valve tongue in the first direction are different, so as to achieve the purpose of making the masses of the first valve tongue and the second valve tongue different and / or the stiffnesses of the first valve tongue and the second valve tongue different. That is to say, by defining the minimum widths of the first valve tongue and the second valve tongue to be different in the first direction, the purpose of making the opening and closing frequencies of the first valve tongue and the second valve tongue different is achieved, providing effective and reliable structural support for reducing intake loss and intake backflow.

[0023] It can be understood that in the first valve tongue, the outer peripheral wall of the part between the fixed end and the free end includes a first connecting wall and a second connecting wall, the first connecting wall and the second connecting wall are arranged oppositely, and the minimum distance from any point on the first connecting wall to any point on the second connecting wall is D.

[0024] It can be understood that in the second valve tongue, the outer peripheral wall of the portion between the fixed end and the free end includes a first connecting wall and a second connecting wall. The first connecting wall and the second connecting wall are arranged oppositely, and the minimum distance from any point on the first connecting wall to any point on the second connecting wall is d.

[0025] In some technical solutions, optionally, the relationship between D and d satisfies: 1.1 ≤ D / d ≤ 2.5.

[0026] In this technical solution, the relationship between D and d is further defined so that the relationship between D and d satisfies: 1.1 ≤ D / d ≤ 2.5. This setting can ensure the structural strength of the first valve tongue and the second valve tongue while meeting the usage requirements of different opening and closing frequencies of the first valve tongue and the second valve tongue.

[0027] If D / d is less than 1.1, then the mass difference between the first valve tongue and the second valve tongue is small, and / or the stiffness difference between the first valve tongue and the second valve tongue is small. In this way, the opening and closing frequencies of the first valve tongue and the second valve tongue are relatively close, and the improvement effect on suction loss and suction reflux is not obvious.

[0028] If D / d is greater than 2.5, then the minimum width of the second valve tongue in the first direction is small, and the structural strength of the second valve tongue at the minimum width is low, which will affect the service life of the second valve tongue and also affect the performance of the compressor.

[0029] In some technical solutions, optionally, along the direction from the free end to the fixed end, the width of the valve tongue in the first direction first increases, then decreases, and then increases again.

[0030] In this technical solution, the structure of the valve tongue is further defined so that along the direction from the free end to the fixed end, the width of the valve tongue in the first direction first increases, then decreases, and then increases again.

[0031] The end part of the valve tongue extending in the direction from the fixed end to the free end is used to cooperate with the suction valve port on the valve plate. Therefore, a larger width of the end part in the first direction can ensure the matching dimension between the valve tongue and the suction valve port, enabling the valve tongue to effectively open or close the suction valve port on the valve plate.

[0032] The starting part of the valve tongue extending in the direction from the fixed end to the free end is used to connect with the body. Therefore, a larger width of the starting part in the first direction can ensure the connection area between the valve tongue and the body, ensure the structural strength at the connection between the valve tongue and the body, enable the valve tongue to vibrate effectively, enable the valve tongue to move effectively along a predetermined trajectory, and provide an effective and reliable structural support for the valve tongue to open or close the suction valve port on the valve plate.

[0033] The middle part of the valve tongue extends from the fixed end to the free end, and has a smaller width in the first direction to meet the usage requirement that the widths of the first valve tongue and the second valve tongue are different in the first direction.

[0034] In some technical solutions, optionally, the valve tongue includes: a root part, where the fixed end is formed; a head part, where the free end is formed; and a connecting part, which is connected between the root part and the head part. The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting part.

[0035] In this technical solution, the structure of the valve tongue is further defined, such that the valve tongue includes a root part, a head part, and a connecting part, and the connecting part is connected between the root part and the head part.

[0036] The fixed end is formed at the root part, and the root part of the valve tongue is connected to the body of the suction valve plate.

[0037] The free end is formed at the head part, and there is a gap between any one of the head part and the connecting part and the wall of the opening. The head part is used to open or close the suction valve port of the valve plate.

[0038] The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting part. That is, by adjusting the width of the connecting part of the valve tongue in the first direction, the minimum widths of the first valve tongue and the second valve tongue in the first direction are made different to meet the usage requirement that the opening and closing frequencies of the first valve tongue and the second valve tongue are different.

[0039] The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting part. In this way, not only can the structural strength of the valve tongue be ensured, ensuring that the valve tongue can move effectively along a predetermined trajectory, providing effective and reliable structural support for the valve tongue to open or close the suction valve port on the valve plate, but also the structural strength of the valve tongue itself and the structural strength of the connection between the valve tongue and the body can be ensured, providing structural support for ensuring the service life of the suction valve plate and the performance of the compressor.

[0040] In some technical solutions, optionally, the opening where the first valve tongue is located is denoted as the first opening, and the opening where the second valve tongue is located is denoted as the second opening; a communicating part and an exhaust port are provided in the part of the body between the first opening and the second opening. The communicating part connects the first opening and the second opening, and the communicating part is located between the head part of the first valve tongue and the head part of the second valve tongue.

[0041] In this technical solution, the structure of the suction valve plate is further defined.

[0042] The opening where the first valve tongue is located is denoted as the first opening, and the opening where the second valve tongue is located is denoted as the second opening.

[0043] The part of the body between the first opening and the second opening is provided with a connecting part. That is, the connecting part is located between the first opening and the second opening, and the first opening and the second opening are connected through the connecting part. This setting is beneficial to increasing the effective flow area of the suction valve plate, and is beneficial to reducing the air flow resistance. At the same time, this structural setting is also beneficial to simplifying the processing steps of the suction valve plate, reducing the processing procedures of the suction valve plate, and improving the processing efficiency of the product.

[0044] The part of the body between the first opening and the second opening is provided with an exhaust port. That is, the exhaust port is located between the first opening and the second opening. It can also be said that the exhaust port is located between the first valve tongue and the second valve tongue. During exhaust, the air flow passes through the exhaust port, and the acting force of the air flow on the first valve tongue and the second valve tongue can be relatively uniform. Compared with one of the first valve tongue and the second valve tongue, for the other one of the first valve tongue and the second valve tongue and the exhaust port, it can avoid the offset or vibration of the unilateral valve tongue caused by excessive force, and can further improve the stability of the air flow.

[0045] In some technical solutions, optionally, the exhaust port is closer to the root of the valve tongue than to the head of the valve tongue.

[0046] In this technical solution, the setting position of the exhaust port is further defined, so that the exhaust port is closer to the root of the valve tongue than to the head of the valve tongue. That is, the distance from the center of the exhaust port to the fixed end is less than the distance from the center of the exhaust port to the free end. The head of the valve tongue is used to cooperate with the suction valve port on the valve plate, and the root of the valve tongue is used to connect with the body. The exhaust port is relatively far from the head of the valve tongue, which can reduce the interference of the air flow discharged through the exhaust port on the head of the valve tongue and ensure the effectiveness of the head in sealing the suction valve port.

[0047] If the exhaust port is closer to the head of the valve tongue than to the root of the valve tongue, then the high-pressure gas will form a sharp corner effect at the edge of the head, resulting in an increase in the stress concentration coefficient. If the exhaust port is closer to the root of the valve tongue, the stress will be evenly transmitted to the body through the root, and the stress level at the head will be significantly reduced, which is beneficial to extending the service life of the suction valve plate and ensuring the service performance of the suction valve plate.

[0048] In some technical solutions, optionally, the position where the width of the valve tongue is the narrowest in the first direction is arranged opposite to the exhaust port.

[0049] In this technical solution, the setting position of the exhaust port is further defined, so that the position where the width of the valve tongue is the narrowest in the first direction is arranged opposite to the exhaust port. The distance between the positions where the widths of the first valve tongue and the second valve tongue are the narrowest is relatively large. Arranging the exhaust port at this position can reduce the limitation on the diameter of the exhaust port, so that the size of the exhaust port can match the size of the exhaust port of the compressor. For example, the diameter of the exhaust port of the body is larger than the diameter of the exhaust port of the compressor to reduce the air flow resistance, which is beneficial to improving the use adaptability of the suction valve plate.

[0050] In some technical solutions, optionally, the size of the head of the first valve tongue is the same as that of the head of the second valve tongue.

[0051] In this technical solution, the mating structure of the first valve tongue and the second valve tongue is further defined.

[0052] The size of the head of the first valve tongue is the same as that of the head of the second valve tongue. That is, the shape of the head of the first valve tongue is the same as the shape of the head of the first valve tongue, and the cross-sectional area of the head of the first valve tongue in the thickness direction perpendicular to the suction valve plate is equal to the cross-sectional area of the head of the second valve tongue in the thickness direction perpendicular to the suction valve plate.

[0053] It can be understood that the head of the valve tongue is used to open or close the suction valve port on the valve plate. Making the size of the head of the first valve tongue the same as that of the head of the second valve tongue, the shape of the head of the valve tongue is adapted to the shape of the suction valve port. That is, there is no need to correspondingly modify the structure of the suction valve port of the valve plate. Thus, this setting can not only meet the usage requirements of different opening and closing frequencies of the first valve tongue and the second valve tongue, but also does not need to adaptively modify the structure of the valve plate, and the existing structure of the valve plate can be continued to be used. In this way, the transformation investment of the compressor can be reduced, which is beneficial to reducing the transformation cost of the compressor.

[0054] In some technical solutions, optionally, the outer peripheral wall of the connecting portion includes any one of the following or a combination thereof: an arc-shaped wall, a flat wall, and a folded wall.

[0055] In this technical solution, the structure of the connecting portion is further defined.

[0056] The outer peripheral wall of the connecting portion includes any one of the following or a combination thereof: an arc-shaped wall, a flat wall, and a folded wall. That is, the outer peripheral wall of the connecting portion includes an arc-shaped wall, or the outer peripheral wall of the connecting portion includes a flat wall, or the outer peripheral wall of the connecting portion includes a folded wall, or the outer peripheral wall of the connecting portion includes an arc-shaped wall and a flat wall, or the outer peripheral wall of the connecting portion includes an arc-shaped wall and a folded wall, or the outer peripheral wall of the connecting portion includes a flat wall and a folded wall, or the outer peripheral wall of the connecting portion includes an arc-shaped wall, a flat wall, and a folded wall.

[0057] That is to say, the structure of the outer peripheral wall of the connecting portion can be set according to specific actual usage requirements.

[0058] When the outer peripheral wall of the connecting portion includes an arc-shaped wall, this setting can increase the guiding area, make the contact stress during the movement of the valve tongue more uniform, and is beneficial to reducing the lateral friction force during the movement of the valve tongue.

[0059] When the outer peripheral wall of the connecting portion includes a flat wall, it has the advantages of being easy to process and assemble, simple structure, and low production cost.

[0060] When the outer peripheral wall of the connecting portion includes a folded surface wall, the local stress concentration coefficient can be reduced and the anti-deformation ability can be improved.

[0061] In some technical solutions, optionally, any two of the plurality of openings are arranged at intervals.

[0062] In this technical solution, the structure of the plurality of openings is further defined.

[0063] Any two of the plurality of openings are arranged at intervals. That is to say, the plurality of openings are a plurality of relatively independent structures, and any two openings are separated and arranged. Each valve tongue is equipped with an independent opening. In this way, it is possible to avoid interference or even interference when multiple valve tongues vibrate.

[0064] In some technical solutions, optionally, the number of the first valve tongues is at least one; and / or the number of the second valve tongues is at least one.

[0065] In this technical solution, the numbers of the first valve tongue and the second valve tongue are further defined.

[0066] The number of the first valve tongues is at least one, that is, the number of the first valve tongues is greater than or equal to 1.

[0067] The number of the second valve tongues is at least one, that is, the number of the second valve tongues is greater than or equal to 1.

[0068] The numbers of the first valve tongue and the second valve tongue can be set according to actual usage requirements.

[0069] Exemplarily, the first valve tongue, the second valve tongue, the first opening and the second opening are denoted as a valve tongue group, and the first opening and the second opening are communicated through a communicating portion. The number of the valve tongue groups is at least one.

[0070] Exemplarily, the first opening and the second opening are arranged at intervals. The number of the first valve tongues is at least one, the number of the first openings is the same as the number of the first valve tongues, and each first valve tongue is correspondingly arranged with a first opening. The number of the second valve tongues is at least one, the number of the second openings is the same as the number of the second valve tongues, and each second valve tongue is correspondingly arranged with a second opening.

[0071] In some technical solutions, optionally, the body is further provided with a mounting portion and a flow-through port, and the mounting portion is used for the mounting and fixing of the body.

[0072] In this technical solution, the structure of the body is further defined.

[0073] The body is further provided with a mounting portion, and the mounting portion is used for the mounting and fixing of the body, that is, the suction valve plate is cooperatively connected with other components of the compressor through the mounting portion.

[0074] The body is also provided with an overcurrent port through which gas can be discharged during exhaust.

[0075] A second aspect of the present application provides a valve group, including: a valve plate provided with a suction valve port; and a suction valve piece as in the first aspect, the suction valve piece being located on one side of the valve plate and used to open or close the suction valve port.

[0076] Since the valve group provided by the present application includes the suction valve piece as in the first aspect, it has all the beneficial effects of the above suction valve piece and will not be elaborated here one by one.

[0077] A third aspect of the present application provides a compressor, including: the valve group as in the second aspect.

[0078] Since the compressor provided by the present application includes the valve group as in the second aspect, it has all the beneficial effects of the above valve group and will not be elaborated here one by one.

[0079] A fourth aspect of the present application provides a refrigeration device, including: the compressor as in the third aspect.

[0080] Since the refrigeration device provided by the present application includes the compressor as in the third aspect, it has all the beneficial effects of the above compressor and will not be elaborated here one by one.

[0081] A fifth aspect of the present application provides a vehicle, including: the compressor as in the third aspect.

[0082] Since the vehicle provided by the present application includes the compressor as in the third aspect, it has all the beneficial effects of the above compressor and will not be elaborated here one by one.

[0083] The additional aspects and advantages of the present application will become apparent in the following description section or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 A schematic structural diagram of a first perspective of a suction valve piece according to an embodiment of the present application is shown; Figure 2 A schematic structural diagram of a second perspective of a suction valve piece according to an embodiment of the present application is shown; Figure 3 A schematic comparison curve diagram showing the variation of the pressure difference and the lift of the valve tongue with the shaft angle between the present application and the related art is shown; Figure 4 A schematic comparison curve diagram showing the variation of the pressure difference and the mass flux rate with the shaft angle between the present application and the related art is shown.

[0085] Among them, Figure 1 and Figure 2 the corresponding relationship between the reference numerals and the component names in is as follows: 10 suction valve plate, 100 body, 110a first opening, 110b second opening, 120 mounting portion, 130 flow-through port, 140 connecting portion, 150 exhaust port, 200a first valve tongue, 200b second valve tongue, 210 fixed end, 220 free end, 230 root portion, 240 head portion, 250 connecting portion. Detailed implementation manners

[0086] In order to be able to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0087] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0088] Next, refer to Figures 1 to 4 to describe the suction valve plate 10, valve group, compressor, refrigeration equipment and vehicle of some embodiments of the present application.

[0089] As Figure 1 shown, a suction valve plate 10 according to some embodiments of the present application includes a body 100 and a plurality of valve tongues.

[0090] The body 100 is provided with a plurality of openings.

[0091] Each valve tongue is arranged at one opening.

[0092] The valve tongue has a fixed end 210 and a free end 220.

[0093] The fixed end 210 is connected to the body 100.

[0094] Among them, at least two of the plurality of valve tongues have different masses, and / or at least two of the plurality of valve tongues have different stiffnesses.

[0095] A suction valve plate 10 provided by the present application includes a body 100 and a plurality of valve tongues.

[0096] The body 100 is provided with a plurality of openings, the number of valve tongues is a plurality, and each valve tongue is arranged at one opening. The number of valve tongues is the same as the number of openings, and the plurality of valve tongues and the plurality of openings are in one-to-one correspondence and cooperation.

[0097] Specifically, the valve tongue has a fixed end 210 and a free end 220. The fixed end 210 is connected to the body 100. There is a gap between the part of the valve tongue between the fixed end 210 and the free end 220 and the wall of the opening of the valve tongue's free end 220. That is to say, there is a gap between the non-fixed end part of the valve tongue and the wall of the opening. Namely, the non-fixed end part of the valve tongue can move relative to the body 100 between a first position and a second position. When the non-fixed end part of the valve tongue is in the first position, the suction valve piece 10 closes the suction valve port on the valve plate. When the non-fixed end part of the valve tongue is in the second position, the suction valve piece 10 opens the suction valve port on the valve plate. That is to say, the valve tongue functions to open or close the suction valve port on the valve plate.

[0098] Among them, the mass and stiffness of the valve tongue will affect the opening and closing frequency of the valve tongue. In this application, at least two of the multiple valve tongues have different masses, and / or at least two of the multiple valve tongues have different stiffnesses. That is to say, at least two of the multiple valve tongues have different opening and closing frequencies. For example, the opening and closing frequencies of two valve tongues are different. For example, the opening and closing frequencies of three valve tongues are all different. For example, the opening and closing frequencies of four valve tongues are all different, etc., which will not be listed one by one here.

[0099] By setting the structure of multiple valve tongues, at least two of the multiple valve tongues have different opening and closing frequencies. In this way, during the suction process of the compressor, the suction muffler of the compressor and the cylinder of the compressor always remain in a connected state, reducing the pressure fluctuations of the suction pressure and the pressure in the cylinder during the suction process, being able to reduce the suction loss, and being beneficial to improving the efficiency of the compressor. At the same time, since at least two of the multiple valve tongues have different opening and closing frequencies, when approaching the end of suction, the reset times of at least two valve tongues are different. When one of the valve tongues is reset, it will cause the pressure in the cylinder to rise rapidly, which will accelerate the reset of the remaining valve tongues. In this way, it is beneficial to reduce the suction backflow and is beneficial to increasing the suction flow rate. Among them, the reset position of the valve tongue is the first position where the valve tongue closes the suction valve port on the valve plate.

[0100] In some embodiments, by way of example, such as Figure 1 shown, two valve tongues with at least one of the mass and stiffness being different are respectively denoted as the first valve tongue 200a and the second valve tongue 200b.

[0101] The width of at least a part of the first valve tongue 200a in a first direction is different from that of the second valve tongue 200b. As Figure 1 and Figure 2 shown, either the direction from the free end 220 to the fixed end 210 or the thickness direction of the suction valve piece 10 is perpendicular to the first direction.

[0102] In this embodiment, the structure of multiple valve tongues is further defined.

[0103] Two valve tongues with at least one of mass and stiffness being different are respectively denoted as the first valve tongue 200a and the second valve tongue 200b, that is, the opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b are different.

[0104] The width of at least a part of the first valve tongue 200a in the first direction is different from that of the second valve tongue 200b. That is, at least a part of the first valve tongue 200a and the second valve tongue 200b located at the same position has different widths in the first direction, and either the direction from the free end 220 to the fixed end 210 or the thickness direction of the suction valve plate 10 is perpendicular to the first direction. For example, the valve tongue is divided such that the valve tongue is divided into a starting part, an intermediate part, and an ending part in the direction from the fixed end 210 to the free end 220. The width of the starting part of the first valve tongue 200a is different from that of the starting part of the second valve tongue 200b in the first direction, and / or the width of the intermediate part of the first valve tongue 200a is different from that of the intermediate part of the second valve tongue 200b in the first direction, and / or the width of the ending part of the first valve tongue 200a is different from that of the ending part of the second valve tongue 200b in the first direction.

[0105] By defining that the widths of the first valve tongue 200a and the second valve tongue 200b in the first direction are different, the purpose of making the masses of the first valve tongue 200a and the second valve tongue 200b different and / or the stiffnesses of the first valve tongue 200a and the second valve tongue 200b different is achieved. That is to say, by defining the widths of the first valve tongue 200a and the second valve tongue 200b in the first direction to be different, the purpose of making the opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b different is achieved, providing an effective and reliable structural support for reducing suction loss and reducing suction backflow.

[0106] In some embodiments, by way of example, as Figure 1 shown, the minimum width of the first valve tongue 200a in the first direction is denoted as D, and the minimum width of the second valve tongue 200b in the first direction is denoted as d, where D > d.

[0107] In this embodiment, the mating structure of the first valve tongue 200a and the second valve tongue 200b is further defined such that the minimum width of the first valve tongue 200a in the first direction is denoted as D, and the minimum width of the second valve tongue 200b in the first direction is denoted as d, where D > d.

[0108] That is, the minimum widths of the first valve tongue 200a and the second valve tongue 200b in the first direction are different, so as to achieve different masses of the first valve tongue 200a and the second valve tongue 200b, and / or different stiffnesses of the first valve tongue 200a and the second valve tongue 200b. That is to say, by limiting the minimum widths of the first valve tongue 200a and the second valve tongue 200b in the first direction to be different, the purpose of different opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b is achieved, providing an effective and reliable structural support for reducing suction loss and suction backflow.

[0109] It can be understood that in the first valve tongue 200a, the outer peripheral wall of the portion between the fixed end 210 and the free end 220 includes a first connecting wall and a second connecting wall, the first connecting wall and the second connecting wall are arranged oppositely, and the minimum distance from any point on the first connecting wall to any point on the second connecting wall is D.

[0110] It can be understood that in the second valve tongue 200b, the outer peripheral wall of the portion between the fixed end 210 and the free end 220 includes a first connecting wall and a second connecting wall, the first connecting wall and the second connecting wall are arranged oppositely, and the minimum distance from any point on the first connecting wall to any point on the second connecting wall is d.

[0111] In some embodiments, by way of example, the relationship between D and d satisfies: 1.1 ≤ D / d ≤ 2.5.

[0112] In this embodiment, the relationship between D and d is further limited so that the relationship between D and d satisfies: 1.1 ≤ D / d ≤ 2.5. This setting can ensure the structural strength of the first valve tongue 200a and the second valve tongue 200b while meeting the usage requirements of different opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b.

[0113] If D / d is less than 1.1, then the mass difference between the first valve tongue 200a and the second valve tongue 200b is small, and / or the stiffness difference between the first valve tongue 200a and the second valve tongue 200b is small. In this way, the opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b are relatively close, and the improvement effect on suction loss and suction backflow is not obvious.

[0114] If D / d is greater than 2.5, then the minimum width of the second valve tongue 200b in the first direction is small, and the structural strength of the second valve tongue 200b at the minimum width is low, which will affect the service life of the second valve tongue 200b and also affect the performance of the compressor.

[0115] Exemplarily, D / d = 1.2, D / d = 1.3, D / d = 1.4, D / d = 1.5, D / d = 1.6, D / d = 1.67, D / d = 1.7, D / d = 1.8, D / d = 1.9, D / d = 2, D / d = 2.1, D / d = 2.2, D / d = 2.3, and D / d = 2.4, etc., which are not listed one by one here.

[0116] Exemplarily, when D / d = 1.8, D = 2.7 mm and d = 1.5 mm.

[0117] Exemplarily, when D / d = 1.67, D = 2.5 mm and d = 1.5 mm.

[0118] In some embodiments, exemplarily, along the direction from the free end 220 to the fixed end 210, the width of the valve tongue in the first direction first increases, then decreases, and then increases again.

[0119] In this embodiment, the structure of the valve tongue is further defined such that along the direction from the free end 220 to the fixed end 210, the width of the valve tongue in the first direction first increases, then decreases, and then increases again.

[0120] The end part of the valve tongue extending in the direction from the fixed end 210 to the free end 220 is used to cooperate with the suction valve port on the valve plate. Therefore, a relatively large width of the end part in the first direction can ensure the matching dimensions between the valve tongue and the suction valve port, enabling the valve tongue to effectively open or close the suction valve port on the valve plate.

[0121] The starting part of the valve tongue extending in the direction from the fixed end 210 to the free end 220 is used to connect with the body 100. Therefore, a relatively large width of the starting part in the first direction can ensure the connection area between the valve tongue and the body 100, ensure the structural strength at the connection between the valve tongue and the body 100, enable the valve tongue to vibrate effectively, enable the valve tongue to move effectively along a predetermined trajectory, and provide an effective and reliable structural support for the valve tongue to open or close the suction valve port on the valve plate.

[0122] The middle part of the valve tongue extending in the direction from the fixed end 210 to the free end 220 has a relatively small width in the first direction to meet the usage requirements of different widths of the first valve tongue 200a and the second valve tongue 200b in the first direction.

[0123] In some embodiments, exemplarily, as Figure 1 shown, the valve tongue includes a root part 230, a head part 240, and a connecting part 250.

[0124] The root part 230 forms the fixed end 210.

[0125] The head part 240 forms the free end 220.

[0126] The connecting portion 250 is connected between the root portion 230 and the head portion 240.

[0127] The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting portion 250.

[0128] In this embodiment, the structure of the valve tongue is further defined such that the valve tongue includes a root portion 230, a head portion 240, and a connecting portion 250, and the connecting portion 250 is connected between the root portion 230 and the head portion 240.

[0129] The root portion 230 is formed with a fixed end 210, and the root portion 230 of the valve tongue is connected to the body 100 of the suction valve plate 10.

[0130] The head portion 240 is formed with a free end 220, and there is a gap between either the head portion 240 and the connecting portion 250 and the wall of the opening. The head portion 240 is used to open or close the suction valve port of the valve plate.

[0131] The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting portion 250. That is, by adjusting the width of the connecting portion 250 of the valve tongue in the first direction, the minimum widths of the first valve tongue 200a and the second valve tongue 200b in the first direction are made different to meet the usage requirements of different opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b.

[0132] The position where the width of the valve tongue is the narrowest in the first direction is located at the connecting portion 250. In this way, not only can the structural strength of the valve tongue be ensured, ensuring that the valve tongue can move effectively along a predetermined trajectory, providing effective and reliable structural support for the valve tongue to open or close the suction valve port on the valve plate, but also the structural strength of the valve tongue itself can be ensured, as well as the structural strength of the connection between the valve tongue and the body 100, providing structural support for ensuring the service life of the suction valve plate 10 and the performance of the compressor.

[0133] In some embodiments, by way of example, as Figure 1 shown, the opening where the first valve tongue 200a is located is denoted as the first opening 110a, and the opening where the second valve tongue 200b is located is denoted as the second opening 110b.

[0134] The portion of the body 100 between the first opening 110a and the second opening 110b is provided with a communicating portion 140 and an exhaust port 150.

[0135] The communicating portion 140 communicates the first opening 110a and the second opening 110b, and the communicating portion 140 is located between the head portions 240 of the first valve tongue 200a and the second valve tongue 200b.

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

[0137] The opening where the first valve tongue 200a is located is denoted as the first opening 110a, and the opening where the second valve tongue 200b is located is denoted as the second opening 110b.

[0138] A communicating portion 140 is provided in the portion of the body 100 between the first opening 110a and the second opening 110b. That is, the communicating portion 140 is located between the first opening 110a and the second opening 110b, and the first opening 110a and the second opening 110b are communicated through the communicating portion 140. This setting is beneficial to increasing the effective flow area of the intake valve sheet 10 and reducing the air flow resistance. At the same time, this structural setting is also beneficial to simplifying the processing steps of the intake valve sheet 10, reducing the processing procedures of the intake valve sheet 10, and improving the processing efficiency of the product.

[0139] An exhaust port 150 is provided in the portion of the body 100 between the first opening 110a and the second opening 110b. That is, the exhaust port 150 is located between the first opening 110a and the second opening 110b. It can also be said that the exhaust port 150 is located between the first valve tongue 200a and the second valve tongue 200b. During exhaust, the air flow passes through the exhaust port 150, and the acting force of the air flow on the first valve tongue 200a and the second valve tongue 200b can be relatively uniform. Compared with one of the first valve tongue and the second valve tongue, in terms of the other of the first valve tongue and the second valve tongue and the exhaust port, it can avoid the offset or vibration of the single-side valve tongue caused by excessive force, and can further improve the stability of the air flow.

[0140] In some embodiments, by way of example, the exhaust port 150 is closer to the root 230 of the valve tongue than to the head 240 of the valve tongue.

[0141] In this embodiment, the setting position of the exhaust port 150 is further defined such that the exhaust port 150 is closer to the root 230 of the valve tongue than to the head 240 of the valve tongue. That is, the distance from the center of the exhaust port 150 to the fixed end 210 is less than the distance from the center of the exhaust port 150 to the free end 220. The head 240 of the valve tongue is used to cooperate with the intake valve port on the valve plate, and the root 230 of the valve tongue is used to connect with the body 100. The exhaust port 150 being relatively far from the head 240 of the valve tongue can reduce the interference of the air flow discharged through the exhaust port 150 on the head 240 of the valve tongue and ensure the effectiveness of the head 240 in sealing the intake valve port.

[0142] If the exhaust port 150 is closer to the head 240 of the valve tongue than to the root 230 of the valve tongue, then a sharp corner effect will be formed at the edge of the head 240 by the high-pressure gas, resulting in an increase in the stress concentration coefficient. If the exhaust port 150 is closer to the root 230 of the valve tongue, the stress will be evenly transmitted to the body 100 through the root 230, and the stress level of the head 240 will be significantly reduced, which is beneficial to extending the service life of the intake valve sheet 10 and ensuring the use performance of the intake valve sheet 10.

[0143] In some embodiments, by way of example, the position where the width of the valve tongue is the narrowest in the first direction is disposed opposite to the exhaust port 150.

[0144] In this embodiment, the setting position of the exhaust port 150 is further defined such that the position where the width of the valve tongue is the narrowest in the first direction is disposed opposite to the exhaust port 150. The distance between the positions where the widths of the first valve tongue 200a and the second valve tongue 200b are the narrowest is relatively large. By disposing the exhaust port 150 at this position, the limitation on the caliber of the exhaust port 150 can be reduced, enabling the size of the exhaust port 150 to match the size of the exhaust port of the compressor. For example, the caliber of the exhaust port 150 of the main body 100 is larger than that of the exhaust port of the compressor, so as to reduce the air flow resistance and facilitate improving the adaptability of the suction valve plate 10.

[0145] In some embodiments, by way of example, the size of the head 240 of the first valve tongue 200a is the same as the size of the head 240 of the second valve tongue 200b.

[0146] In this embodiment, the mating structure of the first valve tongue 200a and the second valve tongue 200b is further defined.

[0147] The size of the head 240 of the first valve tongue 200a is the same as the size of the head 240 of the second valve tongue 200b. That is to say, the shape of the head 240 of the first valve tongue 200a is the same as the shape of the head 240 of the second valve tongue 200b, and the cross-sectional area of the head 240 of the first valve tongue 200a in the direction perpendicular to the thickness of the suction valve plate 10 is equal to the cross-sectional area of the head 240 of the second valve tongue 200b in the direction perpendicular to the thickness of the suction valve plate 10.

[0148] It can be understood that the head 240 of the valve tongue is used to open or close the suction valve port on the valve plate. By making the size of the head 240 of the first valve tongue 200a the same as the size of the head 240 of the second valve tongue 200b, the shape of the head 240 of the valve tongue is adapted to the shape of the suction valve port. That is to say, it is not necessary to correspondingly modify the structure of the suction valve port of the valve plate. Thus, it can be seen that this setting can not only meet the usage requirements of different opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b, but also does not need to adaptively modify the structure of the valve plate, and the existing structure of the valve plate can be continued to be used. In this way, the transformation investment of the compressor can be reduced, which is beneficial to reducing the transformation cost of the compressor.

[0149] In some embodiments, by way of example, the outer peripheral wall of the connecting portion 250 includes any one or a combination of the following: an arc-shaped wall, a flat wall, and a folded surface wall.

[0150] In this embodiment, the structure of the connecting portion 250 is further defined.

[0151] The outer peripheral wall of the connecting portion 250 includes any one of the following or a combination thereof: an arc-shaped wall, a flat wall, and a folded wall. That is, the outer peripheral wall of the connecting portion 250 includes an arc-shaped wall, or the outer peripheral wall of the connecting portion 250 includes a flat wall, or the outer peripheral wall of the connecting portion 250 includes a folded wall, or the outer peripheral wall of the connecting portion 250 includes an arc-shaped wall and a flat wall, or the outer peripheral wall of the connecting portion 250 includes an arc-shaped wall and a folded wall, or the outer peripheral wall of the connecting portion 250 includes a flat wall and a folded wall, or the outer peripheral wall of the connecting portion 250 includes an arc-shaped wall, a flat wall, and a folded wall.

[0152] That is to say, the structure of the outer peripheral wall of the connecting portion 250 can be set according to specific actual usage requirements.

[0153] When the outer peripheral wall of the connecting portion 250 includes an arc-shaped wall, this setting can increase the guiding area, make the contact stress during the movement of the valve tongue more uniform, and is beneficial to reducing the lateral friction force during the movement of the valve tongue.

[0154] When the outer peripheral wall of the connecting portion 250 includes a flat wall, it has the advantages of being easy to process and assemble, having a simple structure, and low production cost.

[0155] When the outer peripheral wall of the connecting portion 250 includes a folded wall, it can reduce the local stress concentration coefficient and improve the anti-deformation ability.

[0156] In some embodiments, exemplarily, any two of the plurality of openings are arranged at intervals.

[0157] In this embodiment, the structure of the plurality of openings is further defined.

[0158] Any two of the plurality of openings are arranged at intervals. That is to say, the plurality of openings are a plurality of relatively independent structures, and any two openings are separated. Each valve tongue is equipped with an independent opening. In this way, it is possible to avoid the situation where multiple valve tongues interfere with each other or even interfere during vibration.

[0159] Exemplarily, the plurality of openings are arranged at intervals around the center of the body 100.

[0160] In some embodiments, exemplarily, the number of the first valve tongues 200a is at least one; and / or the number of the second valve tongues 200b is at least one.

[0161] In this embodiment, the number of the first valve tongues 200a and the second valve tongues 200b is further defined.

[0162] The number of the first valve tongues 200a is at least one, that is, the number of the first valve tongues 200a is greater than or equal to 1.

[0163] The number of the second valve tongues 200b is at least one, that is, the number of the second valve tongues 200b is greater than or equal to 1.

[0164] The number of the first valve tongue 200a and the second valve tongue 200b can be set according to actual usage requirements.

[0165] Exemplarily, the first valve tongue 200a, the second valve tongue 200b, the first opening 110a and the second opening 110b are denoted as a valve tongue group, and the first opening 110a and the second opening 110b are communicated through a communicating part 140. The number of the valve tongue groups is at least one.

[0166] Exemplarily, the first opening 110a and the second opening 110b are arranged at intervals. The number of the first valve tongues 200a is at least one, the number of the first openings 110a is the same as that of the first valve tongues 200a, and each first valve tongue 200a is correspondingly arranged with one first opening 110a. The number of the second valve tongues 200b is at least one, the number of the second openings 110b is the same as that of the second valve tongues 200b, and each second valve tongue 200b is correspondingly arranged with one second opening 110b.

[0167] In some embodiments, exemplarily, as Figure 1 shown, the body 100 is further provided with a mounting part 120 and a flow-through port 130.

[0168] The mounting part 120 is used for mounting and fixing the body 100.

[0169] In this embodiment, the structure of the body 100 is further defined.

[0170] The body 100 is further provided with a mounting part 120, and the mounting part 120 is used for mounting and fixing the body 100, that is, the suction valve plate 10 is cooperatively connected with other components of the compressor through the mounting part 120.

[0171] The body 100 is further provided with a flow-through port 130, and during exhaust, the gas can be discharged through the flow-through port 130.

[0172] Exemplarily, the mounting part 120 includes a mounting hole and / or a mounting convex part.

[0173] According to a valve group of some other embodiments of the present application, the valve group includes: a valve plate provided with a suction valve port; and the suction valve plate 10 of any one of the above embodiments, and the suction valve plate 10 is located on one side of the valve plate and is used for opening or closing the suction valve port.

[0174] Since the valve group provided by the present application includes the suction valve plate 10 of any one of the above embodiments, therefore, it has all the beneficial effects of the above suction valve plate 10, and will not be described one by one here.

[0175] According to a compressor of some other embodiments of the present application, it includes: the valve group in the above embodiment.

[0176] The compressor provided by this application includes the valve group in the above embodiments. Therefore, it has all the beneficial effects of the above valve group, and will not be elaborated one by one here.

[0177] A refrigeration device according to some other embodiments of this application includes: the compressor in the above embodiments.

[0178] The refrigeration device provided by this application includes the compressor in the above embodiments. Therefore, it has all the beneficial effects of the above compressor, and will not be elaborated one by one here.

[0179] A vehicle according to some other embodiments of this application includes: the compressor in the above embodiments.

[0180] The vehicle provided by this application includes the compressor in the above embodiments. Therefore, it has all the beneficial effects of the above compressor, and will not be elaborated one by one here.

[0181] Exemplarily, the compressor is a reciprocating compressor.

[0182] Exemplarily, the suction valve plate 10 includes a body 100 and a plurality of valve tongues. The body 100 is provided with a mounting portion 120, a flow-through port 130, and an exhaust port 150. For example, the valve tongues are reed pieces. The plurality of valve tongues at least include a first valve tongue 200a and a second valve tongue 200b, and the shapes of the first valve tongue 200a and the second valve tongue 200b are different.

[0183] Exemplarily, the minimum width of the first valve tongue 200a in the first direction is denoted as D, and the minimum width of the second valve tongue 200b in the first direction is denoted as d, and D > d.

[0184] Exemplarily, the exhaust port 150 is located between the first valve tongue 200a and the second valve tongue 200b.

[0185] Exemplarily, the masses of the first valve tongue 200a and the second valve tongue 200b are different, and / or the stiffnesses of the first valve tongue 200a and the second valve tongue 200b are different. During the suction process of the compressor, the opening and closing frequencies of the first valve tongue 200a and the second valve tongue 200b are different, ensuring that the suction muffler and the cylinder are always connected during the suction process, reducing the pressure fluctuations between the suction pressure and the cylinder pressure during the suction process, reducing the suction loss, and being beneficial to improving the efficiency of the compressor. At the same time, since the opening and closing frequencies of at least two of the plurality of valve tongues are different, when approaching the end of the suction, the reset times of at least two valve tongues are different. When one of the valve tongues is reset, the pressure in the cylinder will rise rapidly, which will accelerate the reset of the remaining valve tongues. In this way, it is beneficial to reduce the suction backflow and is beneficial to increasing the suction flow rate. Among them, the reset position of the valve tongue is the first position where the valve tongue closes the suction valve port on the valve plate.

[0186] Such as Figure 3 andFigure 4 As shown, the pressure difference refers to the difference between the pressure of the intake muffler and the pressure inside the cylinder during the intake process. The intake valve plate in the related art includes a body and a valve tongue. It can be seen from Figure 3 that the oscillation frequencies of the first valve tongue 200a and the second valve tongue 200b of the intake valve plate 10 in the present application are different during the intake process, and the lift heights of the first valve tongue 200a and the second valve tongue 200b are different, so that the cylinder and the intake muffler are always kept connected during the intake process. It can be seen from Figure 4 that the pressure difference in the present application fluctuates less than that in the related art, which is beneficial to reducing the intake loss. At the same time, it can be seen that at the end of the intake, the intake reflux amount in the present application is smaller, and the mass flux rate in the present application is improved.

[0187] Exemplarily, D / d = 2.7 mm / 1.5 mm. Exemplarily, D / d = 2.5 mm / 1.5 mm.

[0188] Exemplarily, the sizes of the heads 240 of the first valve tongue 200a and the second valve tongue 200b are the same, and the head 240 of the valve tongue is used to seal the intake valve port.

[0189] Exemplarily, the valve tongue includes a root portion 230, a connecting portion 250 and a head portion 240, and the connecting portion 250 is connected between the root portion 230 and the head portion 240. The outer peripheral wall of the connecting portion 250 includes any one of the following or a combination thereof: an arc-shaped wall, a flat wall and a folded wall.

[0190] Exemplarily, the exhaust port 150 is located between the first valve tongue 200a and the second valve tongue 200b.

[0191] Exemplarily, the structure of the intake valve plate 10 in the present application is reasonably set, which can significantly reduce the pressure fluctuations of the intake pressure and the pressure inside the cylinder during the intake process, reduce the intake loss, and is beneficial to improving the efficiency of the compressor. At the same time, this setting can also accelerate the reset of multiple valve tongues, which is beneficial to reducing the intake reflux, beneficial to increasing the intake flow rate, and can improve the performance and energy efficiency of the compressor. Exemplarily, the refrigeration equipment includes refrigerators, freezers, cold cabinets, etc., which are not listed one by one here. Figure 1 In [it], the direction of S1 is the first direction. Figure 2 In [it], the direction of S2 is the thickness direction.

[0192] In the present application, the term "plurality" means two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0193] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An intake valve plate, characterized in that, Comprising: A body provided with a plurality of openings; A plurality of valve tongues, each valve tongue being disposed at one of the openings, the valve tongue having a fixed end and a free end, the fixed end being connected to the body; A part of the non-fixed end of the valve tongue is capable of moving relative to the body between a first position and a second position. When the part of the non-fixed end of the valve tongue is in the first position, the suction valve piece closes the suction valve port on the valve plate. When the part of the non-fixed end of the valve tongue is in the second position, the suction valve piece opens the suction valve port on the valve plate; Wherein, at least two of the plurality of valve tongues have different masses, and / or at least two of the plurality of valve tongues have different stiffnesses; Two valve tongues with at least one of mass and stiffness being different are respectively denoted as a first valve tongue and a second valve tongue; at least a part of the first valve tongue has a different width in a first direction from that of the second valve tongue; either the direction from the free end to the fixed end or the thickness direction of the suction valve piece is perpendicular to the first direction; The minimum width of the first valve tongue in the first direction is denoted as D, and the minimum width of the second valve tongue in the first direction is denoted as d, D > d.

2. The suction valve sheet according to claim 1, wherein The relationship between D and d satisfies: 1.1 ≤ D / d ≤ 2.

5.

3. The suction valve plate according to claim 1 or 2, characterized in that, Along the direction from the free end to the fixed end, the width of the valve tongue in the first direction first increases, then decreases, and then increases again.

4. The suction valve plate according to claim 3, characterized in that, The valve tongue includes: A root portion where the fixed end is formed; A head portion where the free end is formed; A connecting portion connected between the root portion and the head portion, and the position where the width of the valve tongue is the narrowest in the first direction is located at the connecting portion.

5. The suction valve plate according to claim 4, characterized in that, The opening where the first valve tongue is located is denoted as a first opening, and the opening where the second valve tongue is located is denoted as a second opening; A part of the body between the first opening and the second opening is provided with a communication portion and an exhaust port. The communication portion communicates the first opening and the second opening, and the communication portion is located between the head of the first valve tongue and the head of the second valve tongue.

6. The suction valve sheet according to claim 5, wherein, The exhaust port is closer to the root of the valve tongue than to the head of the valve tongue.

7. The suction valve plate according to claim 5, characterized in that, The position where the width of the valve tongue is the narrowest in the first direction is disposed opposite to the exhaust port.

8. The suction valve plate according to claim 5, wherein The size of the head of the first valve tongue is the same as the size of the head of the second valve tongue.

9. The suction valve plate according to claim 4, wherein, The outer peripheral wall of the connecting portion includes any one or a combination of the following: an arc-shaped wall, a flat wall, and a folded wall.

10. The suction valve plate according to claim 1 or 2, characterized in that, Any two of the plurality of openings are arranged at intervals.

11. The suction valve plate according to claim 1 or 2, characterized in that, The number of the first valve tongues is at least one; and / or The number of the second valve tongues is at least one.

12. The suction valve plate according to claim 1 or 2, characterized in that, The body is further provided with a mounting portion and a flow-through port, and the mounting portion is used for mounting and fixing the body.

13. A valve group, characterized in that, Comprising: A valve plate provided with a suction valve port; and The suction valve piece according to any one of claims 1 to 12, the suction valve piece being located on one side of the valve plate, and the suction valve piece being used to open or close the suction valve port.

14. A compressor, characterized in that, Comprising: The valve group according to claim 13.

15. A refrigeration device, characterized in that, Comprising: The compressor according to claim 14.

16. A vehicle, characterized in that, Comprising: The compressor according to claim 14.

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