Valve plate, pump body assembly and compressor

Abstract

The embodiment of the utility model provides a valve plate, pump body subassembly and compressor, the valve plate includes the fixed section and with the deformation section of fixed section connection, the fixed section is fixed on the pump body subassembly, one end of deformation section covers the exhaust port, the deformation section is equipped with the reinforcer along the length direction of deformation section, and the reinforcer is fixed on the pump body subassembly. The deformation amplitude of the deformation section is limited. According to the embodiment, the structure of the valve plate is improved, that is, the reinforcer is arranged in the length direction of the deformation section of the valve plate, the deformation amplitude of the deformation section is limited through the reinforcer, and therefore the effect of controlling the lift of the valve plate is achieved, at the moment, a baffle is not needed to control the lift of the valve plate, use of the baffle is reduced, and in the running process of the compressor, cost is reduced. The valve plate and the baffle cannot collide to generate noise, and the problem that noise is generated between the valve plate and the baffle is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a valve plate, a pump body component and a compressor. Background Art

[0002] The valve plate assembly is an important component inside the compressor. Figure 1 and Figure 2 As shown, in the existing compressor, the valve plate 10 is arranged at the exhaust port 40, and a baffle 20 is arranged above the valve plate 10, and the baffle 20 is fixed on the valve seat 30. When the compressor is exhausted, the air pressure pushes the valve plate 10 open, so that there is a gap between the valve plate 10 and the exhaust port 40, and the compressed refrigerant is discharged from the gap. At this time, the baffle 20 can control the degree of opening of the valve plate 10, that is, the lift, but this method cannot control the lift of the valve plate 10 well.

[0003] Therefore, technicians have improved the structure of the baffle to control the lift requirements of the valve plate at different operating frequencies of the compressor, such as the patent document with patent number 202311777964.2, which discloses an exhaust valve assembly, a compressor, a heat exchange system and an electrical appliance, including a valve seat, a valve plate and a baffle, the baffle including a first deformation layer and a second deformation layer superimposed with the first deformation layer, the first deformation layer is located between the second deformation layer and the valve plate, and the thermal expansion coefficient of the first deformation layer is different from the thermal expansion coefficient of the second deformation layer, and the lift of the valve plate is adjusted according to the exhaust temperature of the exhaust hole. However, in this process, the valve plate collides with the baffle many times, which is easy to generate noise. Utility Model Content

[0004] The utility model provides a valve plate, a pump body component and a compressor, aiming to solve the problem of noise generated between the existing valve plate and the baffle.

[0005] An embodiment of the utility model provides a valve plate, which is applied to a pump body assembly, wherein the pump body assembly has an exhaust port, and the valve plate includes: a fixed section and a deformation section connected to the fixed section, wherein the fixed section is fixed to the pump body assembly, one end of the deformation section covers the exhaust port and can be deformed relative to the fixed section to open the exhaust port, and a reinforcement is provided on the deformation section along the length direction of the deformation section to limit the deformation amplitude of the deformation section.

[0006] Specifically, the deformation section has a first surface and a second surface opposite to each other, wherein the first surface contacts the exhaust port, and the reinforcement is arranged on the second surface.

[0007] Specifically, the deformation section includes a first end and a second end opposite to each other, wherein the first end covers the exhaust port, the second end is connected to the fixed section, and the reinforcement extends from the first end to the second end.

[0008] Specifically, the strength of the reinforcement gradually increases along the direction from the first end to the second end.

[0009] Specifically, the thickness of the reinforcement gradually increases along the direction from the first end to the second end.

[0010] Specifically, the cross-sectional shape of the reinforcement is triangular, streamlined or irregular.

[0011] Specifically, the reinforcement includes a plurality of reinforcements, and the reinforcements are arranged at intervals along a direction from the first end to the second end.

[0012] Specifically, the reinforcement is made of amorphous metal.

[0013] The embodiment of the utility model further provides a pump body assembly, comprising an exhaust port provided on the pump body assembly and the valve sheet as described above provided on the exhaust port.

[0014] An embodiment of the utility model further provides a compressor, comprising the pump body assembly as described above.

[0015] The utility model embodiment provides a valve plate, a pump body assembly and a compressor, the valve plate includes a fixed section and a deformation section connected to the fixed section, the fixed section is fixed to the pump body assembly, one end of the deformation section covers the exhaust port and can be deformed relative to the fixed section to open the exhaust port, the deformation section is provided with a reinforcement along the length direction of the deformation section to limit the deformation amplitude of the deformation section. This embodiment improves the structure of the valve plate, that is, a reinforcement is provided in the length direction of the deformation section of the valve plate, and the deformation amplitude of the deformation section is limited by the reinforcement, so as to achieve the effect of controlling the lift of the valve plate. At this time, there is no need to use a baffle to control the lift of the valve plate, which reduces the use of the baffle. During the operation of the compressor, the valve plate and the baffle will not collide to generate noise, which solves the problem of noise generated between the valve plate and the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an existing valve plate;

[0018] Figure 2 It is a structural schematic diagram of the existing valve plate installed on the pump body assembly;

[0019] Figure 3 A schematic diagram of the structure of the valve plate provided in the first embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the valve plate provided in the embodiment of the utility model installed on the pump body assembly;

[0021] Figure 5 is a schematic diagram of the length of the deformation section and the reinforcement;

[0022] Figure 6 A schematic diagram of the structure of a valve plate provided in the second embodiment of the utility model;

[0023] Figure 7 A schematic diagram of the structure of a valve plate provided in the third embodiment of the utility model;

[0024] Figure 8 A schematic diagram of the structure of a valve plate provided in a fourth embodiment of the utility model;

[0025] Fig. 9 A schematic diagram of the structure of a pump assembly provided in an embodiment of the utility model;

[0026] Fig.10 A schematic structural diagram of a compressor provided in an embodiment of the utility model.

[0027] Description of the symbols in the figure:

[0028] In the prior art, 10, valve plate; 20, baffle; 30, valve seat; 40, exhaust port;

[0029] In each embodiment of the utility model, 1. valve plate; 11. fixed section; 12. deformation section; 121. first end; 122. second end; 13. mounting hole; 14. reinforcement; 2. pump body assembly; 21. exhaust port; 22. valve seat; 3. compressor. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] See also Figure 3-4 The embodiment of the utility model provides a valve plate 1, which is applied to a pump body assembly 2. The pump body assembly 2 has an exhaust port 21. The valve plate 1 includes: a fixed section 11 and a deformation section 12 connected to the fixed section 11. The fixed section 11 is fixed to the pump body assembly 2. One end of the deformation section 12 covers the exhaust port 21 and can be deformed relative to the fixed section 11 to open the exhaust port 21. The deformation section 12 is provided with a reinforcement 14 along the length direction of the deformation section 12 to limit the deformation amplitude of the deformation section 12.

[0035] Figure 3 The valve plate 1 of the present embodiment is provided with a reinforcement member 14 along the length direction on the basis of the conventional valve plate 10, so as to obtain the valve plate 1 of the present embodiment. The valve plate 1 is installed in the pump body assembly 2, and the deformation section 12 covers the exhaust port 21 position, which is used to seal the refrigerant in the cylinder of the pump body assembly 2. When the pump body assembly 2 is working, the cylinder compresses the refrigerant. During the compression process, the valve plate 1 blocks the exhaust port 21 to prevent the refrigerant from leaking. When the compression pressure reaches a certain value, the valve plate 1 is pushed open. At this time, the deformation section 12 is away from the exhaust port 21, so that the exhaust port 21 is opened. Since the reinforcement member 14 is provided on the deformation section 12 of the valve plate 1 along the length direction, the distance between the deformation section 12 and the exhaust port 21 is limited, that is, the lift is limited. There is a gap between the valve plate 1 and the exhaust port 21, and the compressed refrigerant is discharged from the gap. This embodiment improves the structure of the conventional valve plate 10, and sets a reinforcement member 14 in the length direction of the deformation section 12 of the valve plate 1. The reinforcement member 14 limits the deformation amplitude of the deformation section 12, thereby achieving the effect of controlling the lift of the valve plate 1. At this time, there is no need to use the baffle 20 to control the lift of the valve plate 1, which reduces the use of the baffle 20. During the operation of the compressor 3, the valve plate 1 and the baffle 20 will not collide to generate noise, which solves the problem of noise generated between the valve plate 1 and the baffle 20. In specific implementation, the reinforcement member 2 can be integrally formed with the valve plate 1 or other parts of the valve plate 1, or can be processed separately and then installed on the deformation section 11.

[0036] Specifically, Figure 3 and Figure 4 As shown, the deformation section 12 has a first surface and a second surface opposite to each other, wherein the first surface contacts the exhaust port 21 , and the reinforcement member 14 is disposed on the second surface.

[0037] In this embodiment, the first surface of the deformation section 12 directly contacts the exhaust port 21 and covers the exhaust port 21, ensuring effective sealing of the exhaust port 21. The reinforcement member 14 is arranged on the second surface of the deformation section 12, and the second surface is far away from the exhaust port 21, so as to reduce the influence of liquid, gas or other external environment on the reinforcement member 14, and prevent the reinforcement member 14 from being corroded or damaged, thereby affecting the use of the valve plate 1. In addition, the reinforcement member 14 is arranged on the second surface, so that it has the ability to limit the unidirectional deformation degree of the valve plate 1, so as to achieve the effect of controlling the lift of the valve plate 1, thereby effectively reducing the risk of abnormal deformation or damage caused by the pressure of the exhaust port 21, and improving the reliability and durability of the valve plate 1.

[0038] Specifically, Figure 3-4 As shown, the deformation section 12 includes a first end 121 and a second end 122 opposite to each other, wherein the first end 121 covers the exhaust port 21 , the second end 122 is connected to the fixing section 11 , and the reinforcement member 14 extends in a direction from the first end 121 to the second end 122 .

[0039] In this embodiment, the first end 121 of the deformation section 12 covers the exhaust port 21 to prevent the internal medium of the pump body assembly 2 from leaking or overflowing from the exhaust port 21, thereby improving the working efficiency and safety of the pump body assembly 2. The second end 122 is connected to the fixed section 11, and the fixed section 11 is fixed to the pump body assembly 2, so that the valve plate 1 is not damaged or displaced when it is subjected to the air pressure of the exhaust port 21. Since the valve plate 1 is a strip structure, in order to limit the deformation amplitude of the valve plate 1, it is preferred that the reinforcement member 14 is set as a strip reinforcement member and extends in the direction from the first end 121 to the second end 122, such as Figure 5 As shown, the length L of the strip reinforcement is preferably smaller than the length L1 of the deformation section 12, so as to effectively support and reinforce the deformation section 12, reduce the deformation amplitude of the deformation section 12, and reduce the vibration, deformation and damage risks caused by collision between the valve plate 1 and other components in the pump body assembly 2.

[0040] Specifically, the strength of the reinforcement member 14 gradually increases along the direction from the first end 121 to the second end 122 .

[0041] In the present embodiment, since the valve plate 1 needs to seal the exhaust port 21 during compression and open the exhaust port 21 during exhaust, the strength of the first end 121 of the reinforcement 14 is set to be smaller, so that when the pressure during compression reaches a certain value, the first end 121 of the valve plate can be pushed open by a certain value of pressure, so that the exhaust port 21 is opened for exhaust. In order to prevent the first end 121 of the valve plate 1 from being pushed open to a large extent and colliding with other components of the pump body assembly 2, causing noise or affecting the use of other components, it is necessary to limit the lift of the valve plate 1. By setting the strength of the second end 122 of the reinforcement 14 to be larger, when the first end 121 of the valve plate 1 is pushed open, due to the limitation of the reinforcement 14, the second end 122 can be fixed in the pump body assembly 2.

[0042] Specifically, Figure 5-8 As shown, the thickness of the reinforcement member 14 gradually increases along the direction from the first end 121 to the second end 122 .

[0043] In this embodiment, the strength of the reinforcement 14 is increased by gradually increasing the thickness of the reinforcement 14 along the direction from the first end 121 to the second end 122. By designing the cross section of the reinforcement 14 so that it gradually becomes thicker from the first end 121 to the second end 122, when the cross section shape is a simple geometric shape, the thickness of the reinforcement 14 can be controlled by a mathematical curve or a gradient function to ensure that the transition from one end to the other end of the reinforcement 14 is smooth and continuous; or, the reinforcement 14 is divided into several sections, and the end close to the second end 122 is the end of each section, and the thickness is gradually increased at the end of each section. This method is suitable for reinforcements 14 with complex cross sections or reinforcements 14 that need to increase strength at specific locations; or, multiple layers of materials are stacked, and the thickness of each layer is gradually increased, and the overall thickness is gradually changed by controlling the thickness of each layer; or, when manufacturing the reinforcement 14, the required thickness is processed at each position of the reinforcement 14 by using CNC machining or other machining methods. By increasing the thickness of the reinforcement 14 along the direction from the first end 121 to the second end 122, the strength of the reinforcement 14 can be gradually enhanced, so that when the valve plate 1 covers the first end 121 of the exhaust port 21, it can be away from the exhaust port 21 under a certain pressure value, and the lift of the valve plate 2 can also be controlled.

[0044] Specifically, the cross-sectional shape of the reinforcement member 14 is triangular, streamlined or irregular.

[0045] In this embodiment, the cross-sections of different shapes can be used to set the thickness at each position according to the stress conditions, thereby increasing the strength of the reinforcement 14 . Figure 3 and Figure 5 In the embodiment, the cross-sectional shape of the reinforcement member 14 is a triangle. Figure 6 In the embodiment, the cross-sectional shape of the reinforcement member 14 is irregular. Figure 7In the embodiment, the cross-sectional shape of the reinforcement member 14 is streamlined. When the cross-sectional shape of the reinforcement member 14 is triangular or streamlined, the reinforcement member 14 can reduce the amount of material used while maintaining sufficient strength, thereby reducing the overall weight and improving material utilization. When the cross-sectional shape is irregular, it can better adapt to the complex space constraints in the pump body assembly 2.

[0046] In specific implementation, the maximum deformation degree of the valve plate 1 is determined by the inherent strength of the valve plate material and the internal pressure of the cylinder. As the deformation degree of the valve plate 1 increases, the valve plate 1 cannot continue to deform under a given pressure (internal pressure of the cylinder), thereby determining the maximum lift. Figure 4 As shown, the maximum lift H of the reinforcement member 14 (ie, the vertical distance between the first end 121 of the valve plate 1 and the exhaust port 21) can be calculated, as shown in FIG. Figure 5 As shown, taking the reinforcement member 14 with a triangular cross-sectional shape as an example, the exhaust pressure of the exhaust port 21 is specified as P, the length of the reinforcement member 14 is L, the length of the deformation section 12 of the valve plate 1 is L1, the area of ​​the first surface of the valve plate 1 on which the exhaust pressure P acts is S, the cross-sectional area of ​​the reinforcement member 14 is S1, the elastic modulus of the valve plate 1 is E, the stiffness is K, and the elastic force it receives is F, then F=P / S, the elastic force F also satisfies: F=h*K, the cross-sectional single-point deformation h=F / K=P / (S*K), then the maximum lift H of the valve plate 1 is expressed as H=(P*L1) / (S*E*S1). By setting the exhaust pressure P, the length of the deformation section L1 of the valve plate 1, the exhaust pressure action area S, and the cross-sectional area S1 of the reinforcement member 14, the maximum lift H of the corresponding valve plate can be obtained. For the reinforcement member 14 with an irregular or streamlined cross-sectional shape, the corresponding cross-sectional area S1 is different, and the rest can be directly substituted into the formula to calculate the maximum lift H of the corresponding valve plate.

[0047] Specifically, Figure 8 As shown, the reinforcement members 14 include a plurality of reinforcement members 14 , and each reinforcement member 14 is arranged at intervals along a direction from the first end 121 to the second end 122 .

[0048] In this embodiment, a plurality of reinforcement members 14 are provided, and the plurality of reinforcement members 14 are arranged at intervals along the length direction of the deformation section 12. In order to increase the strength of the reinforcement member 14, the thickness and density of the reinforcement member 14 can be increased. Specifically, the thickness of the corresponding reinforcement member 14 can be gradually increased from the first end 121 along the direction of the second end 122; or, the reinforcement member 14 closer to the second end 122 is gradually provided with a plurality of side-by-side reinforcement members 14 in the width direction of the deformation section 12, which can also gradually increase the strength of the reinforcement member 14; or, from the first end 121 along the direction of the second end 122, the spacing between adjacent reinforcement members 14 is set to be smaller, thereby achieving an increase in density; or, by providing the materials of the plurality of reinforcement members 14, the strength of the reinforcement member 14 closer to the second end 122 is greater. These methods can increase the strength of the reinforcement member 14, so that the reinforcement member 14 can control the lift of the valve plate 1.

[0049] Specifically, the reinforcement member 14 is made of amorphous metal.

[0050] In this embodiment, in order to enable the reinforcement 14 to effectively resist the pressure generated in the pump body assembly 2 during operation, amorphous metal is preferably selected as the material of the reinforcement 14, so that the reinforcement 14 can maintain a stable shape during long-term use, thereby better limiting the lift of the valve plate 1. In addition, amorphous metal has good corrosion resistance, can resist the erosion of water, chemicals or other environmental factors on the material, ensure the stability and durability of the reinforcement 14, and can effectively reduce the vibration and noise generated during the operation of the pump body assembly. Among them, amorphous metals include iron-based, cobalt-based, iron-nickel-based and iron-cobalt-nickel-based alloys.

[0051] like Figure 4 and Fig. 9 As shown, the embodiment of the utility model further provides a pump body assembly 2 , including an exhaust port 21 provided on the pump body assembly 2 and the valve plate 1 as described above provided on the exhaust port 21 .

[0052] In this embodiment, the pump body assembly 2 includes a flange and a cylinder. The flange cover is arranged on the cylinder. A valve seat 22 is arranged on the cylinder or the flange. The valve seat 22 is a concave groove. An exhaust port 21 penetrating the valve seat 22 is arranged at one end of the concave groove. The first surface of the valve plate 1 contacts the exhaust port 21, and the second surface is away from the exhaust port 21. The valve plate 1 is close to the bottom of the concave groove. A mounting hole 13 is arranged on the fixing section 11 of the valve plate 1. The rivet passes through the mounting hole 13 and is riveted to the flange / cylinder to fix the valve plate 1 on the exhaust port 21. In the prior art, as Figure 2 As shown, the valve plate 10 is installed on the exhaust port 40, and the baffle 20 is installed on the side of the valve plate 10 away from the exhaust port 40. When the valve plate 10 is pushed open by the exhaust pressure, the baffle 20 limits the lift of the valve plate 10. At this time, the valve plate 10 and the baffle 20 collide to generate noise. Figure 3As shown, in this embodiment, by providing a reinforcement member 14 on the valve plate 1, the lift of the valve plate 1 can be controlled without using a baffle 20. Figure 4 H1 in the figure represents the groove depth of the concave groove. The maximum lift H of the valve plate 1 is less than the groove depth, that is, when the first end of the valve plate 1 is lifted under the exhaust pressure, it will not touch other components, thereby reducing the generation of noise.

[0053] like Fig.10 As shown, the embodiment of the utility model further provides a compressor 3, comprising the pump body assembly 2 as described above.

[0054] The utility model provides a valve plate 1, a pump body assembly 2 and a compressor 3. By designing a new valve plate 1 and installing the new valve plate 1 in the pump body assembly 2, the size of the pump body assembly 2 is made more reasonable, the height of the valve seat 22 is reduced, the clearance volume is reduced, the performance of the compressor 3 is improved, and the valve plate 1 does not use a baffle 20, which can reduce costs. The noise caused by the valve plate 1 hitting the baffle 20 is solved, so that the noise of the entire compressor 3 is reduced, and the hearing experience is better.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A valve plate, applied to a pump assembly, wherein the pump assembly has an exhaust port, characterized in that: The valve plate includes: a fixed section and a deformable section connected to the fixed section, the fixed section is fixed to the pump body assembly, one end of the deformable section covers the exhaust port and can be deformed relative to the fixed section to open the exhaust port, and a reinforcement is provided on the deformable section along the length direction of the deformable section to limit the deformation amplitude of the deformable section.

2. The valve sheet according to claim 1, characterized in that: The deformation section has a first surface and a second surface opposite to each other, wherein the first surface contacts the exhaust port, and the reinforcement is disposed on the second surface.

3. The valve sheet according to claim 1, characterized in that: The deformation section includes a first end and a second end opposite to each other, wherein the first end covers the exhaust port, the second end is connected to the fixing section, and the reinforcement extends in a direction from the first end to the second end.

4. The valve sheet according to claim 3, characterized in that: The strength of the reinforcement gradually increases along a direction from the first end to the second end.

5. The valve sheet according to claim 4, characterized in that: The thickness of the reinforcement gradually increases along a direction from the first end to the second end.

6. The valve sheet according to claim 4, characterized in that: The cross-sectional shape of the reinforcement is triangular, streamlined or irregular.

7. The valve sheet according to claim 4, characterized in that: The reinforcement members include a plurality of reinforcement members, and the reinforcement members are arranged at intervals along a direction from the first end to the second end.

8. The valve sheet according to claim 1, characterized in that: The reinforcement member is made of amorphous metal.

9. A pump assembly, characterized in that: The pump body assembly is provided with an exhaust port and a valve sheet as described in any one of claims 1 to 8 arranged on the exhaust port.

10. A compressor, characterized in that: Comprising the pump body assembly as claimed in claim 9.

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