Gasket and plate connecting structure and plate heat exchanger

Abstract

The utility model discloses a kind of rubber mat and sheet connecting structure and plate heat exchanger, the rubber mat and sheet connecting structure include: multiple connecting arms being arranged in the edge of rubber mat main body;Fixed arm, fixed arm has multiple hanging claws and multiple convex parts connected with multiple connecting arms in alignment, multiple hanging claws are separately arranged in the two sides of multiple convex parts;Multiple first recesses and multiple second recesses formed at the edge of sheet body, first recess and second recess are respectively located on the two opposite plate surfaces of sheet body, and multiple second recesses are respectively communicated with accommodating groove by multiple through grooves;When rubber mat main body is embedded in accommodating groove, multiple connecting arms are respectively located in the through groove in alignment, multiple convex parts are respectively clamped in corresponding first recess, and multiple hanging claws are respectively clamped in corresponding second recess.The utility model solves the technical problem that the stability of rubber mat and sheet connection in plate heat exchanger is not good.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger technology, and particularly to a gasket and plate connection structure and a plate heat exchanger. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchange device composed of a series of metal plates with a certain corrugated shape. Thin rectangular channels are formed between the various plates, through which heat exchange occurs. It features high heat exchange efficiency, compact structure, small footprint, wide applicability, and long service life. Therefore, it is an ideal device for liquid-liquid and liquid-vapor heat exchange.

[0003] The overall structure of the plates in a plate heat exchanger is closely related to the sealing strength. A reasonable and stable sealing structure can not only improve the rigidity of the plates and the pressure resistance of the plate heat exchanger, but also ensure that the plate heat exchanger has good sealing performance, thereby improving the heat exchange efficiency and service life of the plate heat exchanger.

[0004] like Figure 1 As shown, in existing plate heat exchangers, sealing between plates 10 is achieved by setting rubber gaskets 20 on the plates 10. During assembly, the rubber gaskets 20 are first bonded and fixed to the sealing grooves 1001 on the plates 10 with adhesive. The rubber gaskets 20 serve to allow or prevent fluid from entering the channels between the plates 10, so that the plates 10 can achieve the purpose of heat exchange. Regarding the fixing method between the rubber gaskets 20 and the plates 10, the existing technology also adds a hook point between the rubber gaskets 20 and the plates 10, using a single hook structure 30 to hook and connect with the edge of the plates 10 to achieve the purpose of fixing the rubber gaskets 20. However, this structure has poor stability, and the rubber gaskets 20 are prone to misalignment or falling off during use, maintenance, disassembly and cleaning, which can lead to leakage during pressure testing and affect production efficiency.

[0005] There is currently no effective solution to the problem of poor stability in the connection between the gaskets and plates in plate heat exchangers in related technologies.

[0006] Therefore, this utility model proposes a gasket and plate connection structure and a plate heat exchanger to overcome the defects of the prior art. Utility Model Content

[0007] The purpose of this utility model is to provide a connection structure between a rubber pad and a plate and a plate heat exchanger, which is provided with a structure of multiple hooks and multiple connecting arms that cooperate with the rubber pad, and can cooperate with the hook position of the plate to enhance the adhesion of the rubber pad and improve the stability of the rubber pad and the plate.

[0008] The objective of this utility model can be achieved by the following solutions:

[0009] This utility model provides a connection structure between a rubber pad and a plate, which is used to fix the rubber pad body into a receiving groove on the plate body. The connection structure between the rubber pad and the plate includes:

[0010] Multiple connecting arms are disposed on the edge of the rubber pad body and extend away from the rubber pad body;

[0011] A fixed arm, which has multiple hooks and multiple protrusions that are aligned and connected to the multiple connecting arms, with the multiple hooks being disposed on both sides of the multiple protrusions;

[0012] A plurality of first recesses and a plurality of second recesses are formed at the edge of the plate body. The first recesses and the second recesses are respectively located on two opposite plate surfaces of the plate body, and the plurality of first recesses are respectively connected to the receiving groove through a plurality of through grooves.

[0013] When the main body of the rubber pad is embedded in the receiving groove, the multiple connecting arms are respectively located in the aligned through grooves, the multiple protrusions are respectively engaged in the corresponding first recess, and the multiple hooks are respectively engaged in the corresponding second recess.

[0014] In a preferred embodiment of this utility model, the wall surface of the fixing arm facing the plate body abuts against the edge end face of the plate body.

[0015] In a preferred embodiment of the present invention, the first recess is an arc-shaped groove, and the wall surface of the convex part facing the first recess is an arc-shaped surface. When the convex part is engaged in the corresponding first recess, the arc-shaped surface on the convex part abuts against the groove wall of the first recess.

[0016] In a preferred embodiment of the present invention, the wall surface of the protrusion facing away from the first recess is a plane, and the thickness of the protrusion is less than the depth of the corresponding first recess.

[0017] In a preferred embodiment of the present invention, a plurality of first recesses are spaced apart to form protrusions on both sides of the plurality of first recesses, and a plurality of second recesses are formed on the opposite side surface of the plate body opposite to the protrusions.

[0018] In a preferred embodiment of the present invention, the groove wall of the second recess is a flat wall surface, and the wall surface of the hook facing the second recess is a plane. When the hook is engaged in the corresponding second recess, the plane on the hook is in close contact with the groove wall of the second recess.

[0019] In a preferred embodiment of this utility model, the thickness of the hook is less than the depth of the aligned second recess.

[0020] In a preferred embodiment of the present invention, the thickness of the connecting arm is greater than the depth of the aligned through groove, and when multiple plates are stacked and assembled, the thickness of the connecting arm is compressed to be equal to the depth of the through groove.

[0021] In a preferred embodiment of the present invention, the connecting arm is integrally connected to the corresponding protrusion.

[0022] This utility model provides a plate heat exchanger, the plate heat exchanger comprising:

[0023] plate body;

[0024] Multiple sets of the above-mentioned pad and plate connection structures are arranged at intervals along the edge of the plate body.

[0025] As described above, the features and advantages of the gasket-plate connection structure and plate heat exchanger of this utility model are:

[0026] A fixing arm is provided on one side of the rubber pad body, and multiple connecting arms extend from the rubber pad body. The fixing arm is aligned and connected to each connecting arm through multiple protrusions provided thereon. Multiple hanging claws are provided on the fixing arm, and each hanging claw is located on both sides of each protrusion. In order to cooperate with each connecting arm, each protrusion and each hanging claw, multiple first recesses and multiple second recesses are respectively provided on the two opposite plate surfaces at the edge of the plate body. The multiple first recesses are respectively connected to the pre-set receiving grooves on the plate body through multiple through grooves. When the rubber pad body is in the installation state, the multiple connecting arms are respectively located in the aligned through grooves, so that the multiple protrusions can be respectively engaged in the corresponding first recesses. The multiple hanging claws are located on the plate surfaces opposite to the first recesses and are respectively engaged in the corresponding second recesses. Thus, through the cooperation of multiple protrusions and multiple hanging claws, the rubber pad body can be respectively engaged and fixed to the two opposite plate surfaces of the plate body. Compared with a single hook structure, the fixing method of this application is less likely to loosen at the hook position, which can improve the stability of the rubber pad body fixed on the plate body.

[0027] In addition, this application has a structure in which the rubber pad body can be snapped and fixed to the two opposite surfaces of the plate body through the cooperation of multiple protrusions and multiple claws. This ensures that the rubber pad body can be stably connected to the plate body. At the same time, the snapping structure is easy to disassemble and assemble. During the installation, disassembly, or replacement of the rubber pad, it is easy to operate and reduces the difficulty of implementation for the staff. Attached Figure Description

[0028] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the rubber pad and the plate in the prior art;

[0030] Figure 2 This is one of the partial structural diagrams of the main body of the rubber pad in the connection structure between the rubber pad and the plate of this utility model;

[0031] Figure 3 This is the second partial structural diagram of the main body of the rubber pad in the connection structure between the rubber pad and the plate of this utility model;

[0032] Figure 4 This is a partial structural diagram of the plate body in the connection structure between the rubber pad and the plate of this utility model;

[0033] Figure 5 This is one of the partial structural diagrams of the connection structure between the rubber pad and the plate in this utility model;

[0034] Figure 6 This is the second partial structural diagram of the connection structure between the rubber pad and the plate in this utility model.

[0035] The reference numerals in the background art are:

[0036] 10. Plate; 1001. Sealing groove;

[0037] 20. Rubber pad; 30. Hook and clip structure.

[0038] The reference numerals in the accompanying drawings of this utility model are:

[0039] 1. Rubber pad body; 11. Connecting arm;

[0040] 111. First connecting arm; 112. Second connecting arm;

[0041] 12. The convex part; 121. The first convex part;

[0042] 122. The second convex part; 13. Hanging claw;

[0043] 131. First hook; 132. Second hook;

[0044] 133. Third gripper; 14. Fixed arm;

[0045] 2. Plate body; 21. Receiving groove;

[0046] 22. The first recess; 221. I groove;

[0047] 222, II. Groove; 23, Protrusion;

[0048] 231. First protrusion; 232. Second protrusion;

[0049] 233. Third protrusion; 24. Through groove;

[0050] 241. First through slot; 242. Second through slot;

[0051] 25. Second recess; 251. III groove;

[0052] 252, Ⅳ groove; 253, Ⅴ groove. Detailed Implementation

[0053] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0054] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] Implementation Method 1

[0057] like Figures 2 to 6As shown, this utility model provides a connection structure between a rubber pad and a plate. This connection structure allows the rubber pad body 1 to be fixed within the receiving groove 21 on the plate body 2. The connection structure includes multiple connecting arms 11, a fixing arm 14, multiple first recesses 22, and multiple second recesses 25. The connecting arms 11 are spaced apart at the edge of the rubber pad body 1 and extend away from the rubber pad body 1. The fixing arm 14 is elongated, located on one side of the rubber pad body 1, and extends along the length of the rubber pad body 1. The fixing arm 14 has multiple hanging claws 13 and multiple protrusions 12. Each protrusion 12 corresponds to one of the connecting arms 11, and each protrusion 12 is connected to its corresponding connecting arm 11. 1. The connection is made so that the fixing arm 14 is connected to one side of the rubber pad body 1 through the connection relationship between the connecting arm 11 and the protrusion 12. Multiple hanging claws 13 are respectively disposed on both sides of multiple protrusions 12 (that is, at least one hanging claw 13 is provided on both sides of each protrusion 12); multiple first recesses 22 and multiple second recesses 25 are formed at the edge of the plate body 2. The first recesses 22 and the second recesses 25 are respectively located on two opposite plate surfaces of the plate body 2. The number of multiple first recesses 22 is the same as the number of protrusions 12 and their positions correspond one-to-one. The number of multiple second recesses 25 is the same as the number of hanging claws 13 and their positions correspond one-to-one. The multiple first recesses 22 are respectively connected to the receiving grooves 21 on the plate body 2 through multiple through grooves 24. When the rubber pad body 1 is embedded in the receiving groove 21, multiple connecting arms 11 are respectively located in the aligned through grooves 24, and multiple protrusions 12 are respectively engaged in the corresponding first recesses 22, and multiple claws 13 are respectively engaged in the corresponding second recesses 25.

[0058] In this utility model, the receiving groove 21 can be a sealing groove pre-opened on the plate surface of the plate body 2 and near its edge. The shape of the rubber pad body 1 is adapted to the receiving groove 21, so that the rubber pad body 1 can be precisely embedded in the receiving groove 21, thereby sealing between multiple plate bodies 2 in the state of multiple plate bodies 2 stacked and assembled.

[0059] This invention features a fixing arm 14 on one side of the rubber pad body 1. Multiple connecting arms 11 extend from the rubber pad body 1, and the fixing arm 14 is aligned and connected to each connecting arm 11 via multiple protrusions 12. Multiple hanging claws 13 are provided on the fixing arm 14, each claw 13 being located on both sides of each protrusion 12. To accommodate each connecting arm 11, each protrusion 12, and each hanging claw 13, multiple first recesses 22 and multiple second recesses 25 are respectively provided on opposite sides of the plate body 2 at its edge. The multiple first recesses 22 communicate with pre-set receiving grooves 21 on the plate body 2 via multiple through slots 24. The rubber pad body 1 is then in the installation position... In the current state (i.e., when the rubber pad body 1 is embedded in the receiving groove 21), multiple connecting arms 11 are respectively located in the aligned through grooves 24, so that multiple protrusions 12 can be respectively engaged in the corresponding first recesses 22, and multiple hooks 13 are located on the opposite plate surfaces of the first recesses 22 and are respectively engaged in the corresponding second recesses 25. Thus, through the cooperation of multiple protrusions 12 and multiple hooks 13, the rubber pad body 1 can be respectively engaged and fixed to the two opposite plate surfaces of the plate body 2. Compared with a single hook structure, the fixing method of this application is less prone to loosening at the hook position, which can improve the stability of the rubber pad body 1 fixed on the plate body 2. In addition, the structure of this application, which allows the rubber pad body 1 to be respectively engaged and fixed to the two opposite plate surfaces of the plate body 2 through the cooperation of multiple protrusions 12 and multiple hooks 13, ensures that the rubber pad body 1 can be stably connected to the plate body 2. At the same time, the engaging structure is easy to disassemble and assemble, making it easier to operate and reducing the difficulty of operation for workers during the installation, disassembly, or replacement of the rubber pad.

[0060] In one optional embodiment of this utility model, such as Figure 5 and Figure 6 As shown, when the rubber pad body 1 is embedded in the receiving groove 21, multiple protrusions 12 are respectively engaged in the corresponding first recesses 22, and multiple claws 13 are respectively engaged in the corresponding second recesses 25. At this time, the wall surface of the fixing arm 14 facing the plate body 2 abuts against the edge end face of the plate body 2, thereby fixing the position of the fixing arm 14 and clamping the rubber pad body 1 in the installation position. The fixing arm 14 in this utility model is not only used to connect multiple claws 13 and multiple protrusions 12, but also further serves to fix the rubber pad body 1, preventing the rubber pad body 1 from shifting after being installed on the plate body 2.

[0061] In one optional embodiment of this utility model, such as Figure 3 and Figure 4As shown, the first recess 22 is an arc-shaped groove, and the wall surface of the protrusion 12 facing the first recess 22 is an arc-shaped surface. When the protrusion 12 is engaged in the corresponding first recess 22, the arc-shaped surface on the protrusion 12 abuts against the groove wall of the first recess 22. The arc-shaped contact surface design between the first recess 22 and the protrusion 12 increases the contact area between them, thereby improving the stability of the engagement. Furthermore, the arc-shaped contact surface has a better limiting effect, that is, it can better limit the position of the protrusion 12 within the first recess 22, ensuring the stability of the engagement and preventing the protrusion 12 from shifting within the first recess 22, thus ensuring the stability of the installation position of the rubber pad body 1.

[0062] Furthermore, such as Figure 2 and Figure 5 As shown, the wall surface of the protrusion 12 facing away from the first recess 22 is flat, and the thickness of the protrusion 12 is less than the depth of the first recess 22, ensuring that when the protrusion 12 is snapped into the first recess 22, the protrusion 12 will not protrude out of the first recess 22 and affect the sealing effect of the gasket body 1.

[0063] Specifically, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a plurality of first recesses 22 are spaced apart, with protrusions 23 formed on both sides of the plurality of first recesses 22 respectively, and a plurality of second recesses 25 are formed on the opposite side surface of the plate body 2 opposite to the protrusions 23. In actual manufacturing process, a plurality of first recesses 22 and a plurality of second recesses 25 can be formed simultaneously on the plate body 2 by integral stamping, which is easier to manufacture.

[0064] Furthermore, the groove wall of the second recess 25 is a flat wall surface, and the claw 13 is a protrusion with one end connected to the fixing arm 14 and the other end extending towards the rubber pad body 1. The shape of the claw 13 is adapted to the second recess 25, and the wall surface of the claw 13 facing the second recess 25 is a plane. When the claw 13 is engaged in the corresponding second recess 25, the plane on the claw 13 is close to the groove wall of the second recess, thereby improving the stability of the engagement between the claw 13 and the corresponding second recess 25, ensuring that the claw 13 will not shift in the second recess 25, and further improving the stability of the installation position of the rubber pad body 1.

[0065] Furthermore, such as Figure 6 As shown, the thickness of the claw 13 is less than the depth of the second recess 25, ensuring that when the claw 13 is snapped into the second recess 25, the claw 13 will not protrude from the second recess 25 and affect the sealing effect of the rubber pad body 1.

[0066] In an optional embodiment of this utility model, the thickness of the connecting arm 11 is greater than the depth of the alignment through groove 24, and when multiple plate bodies 2 are stacked and assembled, the thickness of the connecting arm 11 is compressed to be equal to the depth of the through groove 24, ensuring that the connecting arm 11 can be compressed and deformed but will not fail when multiple sets of plate bodies 2 are pressed together; when multiple sets of plate bodies 2 are pressed together, the connecting arm 11 is compressed and fixed in the through groove 24, the connecting arm 11 is compressed and deformed and fixes the rubber pad body 1, so that the rubber pad body 1 will not shift.

[0067] In an optional embodiment of this utility model, the connecting arm 11 is integrally connected to its corresponding protrusion 12. The connecting arm 11, protrusion 12, hook 13, and fixing arm 14 may be made of integrally synthesized rubber.

[0068] In one specific embodiment of this utility model, such as Figures 2 to 6 As shown, two connecting arms 11 (i.e., the first connecting arm 111 and the second connecting arm 112) are arranged at intervals along the edge of the rubber pad body 1. The fixed arm 14 has two protrusions 12 and three claws 13. That is, the first claw 131, the first protrusion 121, the second claw 132, the second protrusion 122 and the third claw 133 are arranged sequentially along the extension direction of the fixed arm 14 toward the side of the rubber pad body 1. Correspondingly, the first protrusion 231, the first groove 221, the second protrusion 232, the second groove 222 and the third protrusion 233 are formed sequentially on the first plate surface of the plate body 2. Therefore, the third groove 251, the fourth groove 252 and the fifth groove 253 are formed on the opposite second plate surface and at the positions opposite to the first protrusion 231, the second protrusion 232 and the third protrusion 233, respectively. In the assembled state, the rubber pad body 1 is embedded in the receiving groove 21, and the first protrusion 121 and the second protrusion 122 on the first plate surface of the plate body 2 are respectively engaged in the I groove 221 and the II groove 222. On the second plate surface of the plate body 2, the first hanging claw 131, the second hanging claw 132 and the third hanging claw 133 are respectively engaged in the III groove 251, the IV groove 252 and the V groove 253. At the same time, the wall surface of the fixing arm 14 facing the plate body 2 abuts against the edge end face of the plate body 2.

[0069] The features and advantages of the adhesive pad and plate connection structure of this utility model are:

[0070] 1. In the connection structure between the rubber pad and the plate, the rubber pad body 1 can be snapped and fixed to the two opposite plate surfaces of the plate body 2 through the cooperation of multiple protrusions 12 and multiple hooks 13. Compared with a single hook structure, the fixing method of this application is less likely to loosen at the snap position, which can improve the stability of the rubber pad body 1 fixed on the plate body 2.

[0071] Second, in the connection structure between the rubber pad and the plate, when the rubber pad body 1 is embedded in the receiving groove 21, it can fix the rubber pad body 1. The redundant design of multiple hanging claws 13 and protrusions 12 can provide better fixing effect and fault tolerance for the rubber pad body 1. When a certain hanging claw 13 fails or breaks, it can still provide stable fixing effect for the rubber pad body 1.

[0072] Third, the connection structure between the rubber pad and the plate facilitates disassembly and replacement of the rubber pad body 1, making it suitable for frequent disassembly scenarios and reducing maintenance frequency and cost.

[0073] Fourth, the connection structure between the rubber gasket and the plate can prevent the rubber gasket body 1 from shifting after assembly, improve the sealing effect, effectively reduce the installation failure rate, and extend the service life of the plate heat exchanger.

[0074] Implementation Method 2

[0075] This utility model provides a plate heat exchanger, which includes a plate body 2 and multiple sets of the above-mentioned rubber pad and plate connection structures. The multiple sets of rubber pad and plate connection structures are spaced apart and evenly arranged along the edge of the plate body 2.

[0076] The plate heat exchanger of this utility model adopts the above-mentioned gasket and plate connection structure to fix the gasket body 1 to the plate body 2. While meeting the sealing requirements, it can improve the stability of the connection between the gasket body 1 and the plate body 2. It can effectively avoid the gasket from being misaligned or falling off during the use, maintenance, disassembly and cleaning of the plates in the plate heat exchanger, and ensure the long-term and stable working state of the plate heat exchanger.

[0077] In addition, the plate heat exchanger of this utility model has the same features and advantages as the above-mentioned gasket and plate connection structure, which will not be elaborated here.

[0078] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0079] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0080] The above are merely several embodiments of this utility model. Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A connection structure between a rubber pad and a plate, used to fix the rubber pad body into a receiving groove on the plate body, characterized in that, The connection structure between the rubber pad and the plate includes: Multiple connecting arms are disposed on the edge of the rubber pad body and extend away from the rubber pad body; A fixed arm, which has multiple hooks and multiple protrusions that are aligned and connected to the multiple connecting arms, with the multiple hooks being disposed on both sides of the multiple protrusions; A plurality of first recesses and a plurality of second recesses are formed at the edge of the plate body. The first recesses and the second recesses are respectively located on two opposite plate surfaces of the plate body, and the plurality of first recesses are respectively connected to the receiving groove through a plurality of through grooves. When the main body of the rubber pad is embedded in the receiving groove, the multiple connecting arms are respectively located in the aligned through grooves, the multiple protrusions are respectively engaged in the corresponding first recess, and the multiple hooks are respectively engaged in the corresponding second recess.

2. The connection structure between the rubber pad and the plate as described in claim 1, characterized in that, The wall surface of the fixed arm facing the plate body abuts against the edge end face of the plate body.

3. The connection structure between the rubber pad and the plate as described in claim 1, characterized in that, The first recess is an arc-shaped groove, and the wall surface of the convex part facing the first recess is an arc-shaped surface. When the convex part is engaged in the corresponding first recess, the arc-shaped surface on the convex part abuts against the groove wall of the first recess.

4. The connection structure between the rubber pad and the plate as described in claim 3, characterized in that, The wall surface of the protrusion facing away from the first recess is flat, and the thickness of the protrusion is less than the depth of the corresponding first recess.

5. The connection structure between the rubber pad and the plate as described in claim 1, characterized in that, A plurality of first recesses are spaced apart to form protrusions on both sides of the plurality of first recesses, and a plurality of second recesses are formed on the opposite side surface of the plate body opposite to the protrusions.

6. The gasket and plate connection structure as described in claim 1 or 5, characterized in that, The groove wall of the second recess is a flat wall surface, and the wall surface of the hook facing the second recess is a plane. When the hook is engaged in the corresponding second recess, the plane on the hook is in close contact with the groove wall of the second recess.

7. The connection structure between the rubber pad and the plate as described in claim 6, characterized in that, The thickness of the claw is less than the depth of the second recess.

8. The connection structure between the rubber pad and the plate as described in claim 1, characterized in that, The thickness of the connecting arm is greater than the depth of the aligned through groove, and when multiple plates are stacked and assembled, the thickness of the connecting arm is compressed to be equal to the depth of the through groove.

9. The connection structure between the rubber pad and the plate as described in claim 1, characterized in that, The connecting arm is integrally connected to its corresponding protrusion.

10. A plate heat exchanger, characterized in that, The plate heat exchanger includes: plate body; The multiple sets of adhesive pad and plate connection structures according to any one of claims 1 and 9 are arranged at intervals along the edge of the plate body.

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