Air tightness detection joint
By designing an airtightness testing connector, an integrated connection adapter and clamping structure, the problem of low testing efficiency of heat dissipation cold plates is solved, achieving efficient batch testing and accurate airtightness testing.
Patent Information
- Application Number
- CN202421144112.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-23
AI Technical Summary
In existing technologies, the airtightness testing of heat dissipation cold plates requires manual installation of a customized clamping structure, which is time-consuming and cumbersome, making it unsuitable for batch testing and resulting in low testing efficiency.
Design an airtightness testing connector, including a connector body, a conversion connector and a clamping structure. The conversion connector and the clamping structure are connected by an integral structure, which simplifies the assembly process. The clamping structure clamps the connector body and the connecting connector, avoiding direct clamping of the connection point to improve reliability and stability.
It enables batch testing of heat dissipation plates, improves testing efficiency, enhances the reliability and stability of the connection between conversion joints and connecting joints, and improves the accuracy of airtightness testing.
Smart Images
Figure CN222351690U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air tightness detection of heat dissipation cold plates, in particular to an air tightness detection joint. Background Art
[0002] In the manufacturing process of heat sink cold plates, helium mass spectrometer leak detectors are usually used to test the air tightness of heat sink cold plates. However, in the process of air tightness testing of heat sink cold plates, it is necessary to manually use a customized clamping structure to clamp the conversion joint and the connecting joint. Manual installation takes a lot of time, and the assembly of the clamping structure, the conversion joint and the conversion joint is cumbersome, which is not suitable for batch testing of heat sink cold plates, reducing the testing efficiency. Utility Model Content
[0003] In view of this, one purpose of the utility model is to provide an airtight detection joint to solve the technical problems existing in the prior art that manual installation takes a long time, the assembly of the clamping structure and the conversion joint and the conversion joint is cumbersome, it is not suitable for batch detection of heat dissipation cold plates, and the detection efficiency is reduced.
[0004] In the first aspect, an embodiment of the utility model provides an airtight detection joint for sealingly connecting with a connecting joint of a heat dissipation cold plate. The airtight detection joint comprises a joint body, a conversion joint and a clamping structure. An air path is provided in the joint body. The conversion joint is sealedly connected to the joint body, and the conversion joint is provided with an air vent connected to the air path and the connecting joint. The clamping structure is mounted on the joint body and is used to clamp the joint body and the connecting joint.
[0005] In combination with the first aspect, in certain implementations of the first aspect, the clamping structure includes a supporting portion and a clamping portion, the supporting portion is movably arranged on the joint body, and the clamping portion is connected to the supporting portion and forms a clamping space for clamping the joint body and the connecting joint.
[0006] In combination with the first aspect, in certain implementations of the first aspect, the clamping portion includes a clamping section connecting the supporting portion and a connecting section of the clamping section, and the clamping section and the conversion joint are located on the same side of the joint body.
[0007] In combination with the first aspect, in certain implementations of the first aspect, an avoidance structure arranged to avoid the connecting joint is provided at one end of the clamping portion facing away from the supporting portion.
[0008] In combination with the first aspect, in certain implementations of the first aspect, the airtightness detection joint further includes a limiter, which is disposed on the joint body and is used to limit the position of the joint body relative to the support portion.
[0009] In combination with the first aspect, in some implementations of the first aspect, a limiting groove is provided on the support portion, and the limiting member is used to cooperate with the limiting groove.
[0010] In combination with the first aspect, in some implementations of the first aspect, the limiting member is configured as a ball plunger.
[0011] In combination with the first aspect, in certain implementations of the first aspect, the clamping structure includes one, and the clamping structure is arranged close to the conversion joint; or, the clamping structure includes multiple, and the conversion joint is arranged between two adjacent clamping structures.
[0012] In combination with the first aspect, in certain implementations of the first aspect, the joint body includes an air circuit plate and a cover plate, the cover plate is fixedly connected to the air circuit plate, the conversion joint includes a first connection part and a second connection part connected to the first connection part, the first connection part is clamped between the air circuit plate and the cover plate, and is sealed to the air circuit plate, and the second connection part is passed through the cover plate and is sealed to the connecting joint.
[0013] In combination with the first aspect, in certain implementations of the first aspect, the airtight detection joint also includes a third sealing ring, the second connecting part is sealedly connected to the connecting joint through the second sealing ring and the third sealing ring, the third sealing ring is located between the first sealing ring and the second sealing ring, and the hardness of the third sealing ring is greater than the hardness of the second sealing ring.
[0014] The airtight detection joint provided by the utility model, on the one hand, is based on connecting the conversion joint and the clamping structure into an integral structure through the joint body, which simplifies the assembly of the clamping structure, is suitable for batch detection of heat dissipation cold plates, and improves the detection efficiency of heat dissipation cold plates; on the other hand, the clamping structure clamps the joint body and the connecting joint, thereby avoiding the problem of damage to the connecting joint and the conversion joint caused by the clamping structure directly clamping at the connection between the connecting joint and the conversion joint, thereby improving the reliability and stability of the connection between the conversion joint and the connecting joint, and improving the accuracy of airtight detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0016] Figure 1It is a structural schematic diagram of the airtightness detection joint provided by an embodiment of the utility model.
[0017] Figure 2 yes Figure 1 A cross-sectional view of the airtightness detection joint and the heat dissipation cold plate in the first state from a first viewing angle.
[0018] Figure 3 yes Figure 1 A cross-sectional view of the airtightness detection joint and the heat dissipation cold plate in the first state from a second perspective.
[0019] Figure 4 yes Figure 1 A cross-sectional view of the airtightness detection joint and the heat dissipation cold plate in the second state from a first perspective.
[0020] Figure 5 yes Figure 1 A cross-sectional view of the airtightness detection joint and the heat dissipation cold plate in the second state from a second viewing angle.
[0021] Figure 6 yes Figure 1 An enlarged view of the conversion joint of the airtight detection joint matching the first sealing ring, the second sealing ring and the second sealing ring.
[0022] Description of main reference numerals: air tightness detection joint-100; joint body-10; air passage-101; containing groove-102; ventilation interface-103; connecting hole-104; air circuit plate-11; cover plate-12; conversion joint-30; ventilation hole-301; waterproof groove-302; first connecting part-31; second connecting part-32; first stopper-33; second stopper-34; clamping structure-40; clamping space-401; limiting groove-402; first groove-403; second Groove-404; support portion-41; clamping portion-43; clamping section-431; connecting section-432; avoidance structure-433; protrusion-45; limit member-50; clamping joint-51; limit rod-52; elastic member-53; first sealing ring-61; second sealing ring-62; third sealing ring-63; heat dissipation cold plate-200; connecting joint-210; positioning portion-212; heat dissipation channel-220; positioning groove-230; length direction-X; width direction-Y; height direction-Z.
[0023] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0024] 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 only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0025] It is to be understood that the terms in the specification and claims of the present invention and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present invention. The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. Unless the context clearly states otherwise, the singular forms "one" and "said" are also intended to include plural forms. The terms "including" and any of their variations are intended to cover non-exclusive inclusions. In addition, the present invention can be implemented in a variety of different forms and is not limited to the embodiments described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present invention, in which words indicating directions such as top, bottom, left, and right are only for the position of the structure shown in the corresponding drawings. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] The following description is a preferred embodiment of the present invention, but the above description is for the purpose of illustrating the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.
[0027] Please also read Figure 1 and Figure 2 , Figure 1 1 is a schematic structural diagram of an airtightness detection joint 100 provided in an embodiment of the utility model; Figure 2 yes Figure 1A cross-sectional view of the air tightness detection joint 100 and the heat dissipation cold plate 200 in the first state from a first perspective. The air tightness detection joint 100 is used to be sealed and connected to the connecting joint 210 of the heat dissipation cold plate 200. The air tightness detection joint 100 includes a joint body 10, a conversion joint 30 and a clamping structure 40. An air path 101 is provided in the joint body 10. The conversion joint 30 is sealed and connected to the joint body 10, and the conversion joint 30 is provided with a vent 301 connected to the air path 101 and the connecting joint 210. The clamping structure 40 is installed on the joint body 10 and is used to clamp the joint body 10 and the connecting joint 210.
[0028] The airtight detection joint 100 provided by the utility model, on the one hand, is based on connecting the conversion joint 30 and the clamping structure 40 into an integral structure through the joint body 10, which simplifies the assembly of the clamping structure 40, is suitable for batch detection of the heat dissipation cold plate 200, and improves the detection efficiency of the heat dissipation cold plate 200; on the other hand, based on the clamping structure 40 clamping the joint body 10 and the connecting joint 210, it is avoided that the clamping structure 40 is directly clamped at the connection between the connecting joint 210 and the conversion joint 30 to cause damage to the connecting joint 210 and the conversion joint 30, thereby improving the reliability and stability of the connection between the conversion joint 30 and the connecting joint 210, and improving the accuracy of airtight detection.
[0029] It should be noted that Figure 1 The purpose is only to schematically describe the arrangement of the joint body 10, the conversion joint 30 and the clamping structure 40, and it is not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The structure of the airtight detection joint 100 is only shown in the embodiment of the present invention, and does not constitute a specific limitation on the airtight detection joint 100. In other embodiments of the present invention, the airtight detection joint 100 may include Figure 1 More or fewer components, or a combination of certain components, or different components, such as the airtightness detection joint 100 may also include but not limited to a pulling structure, a protective structure, etc. The first state refers to the state in which the clamping structure 40 clamps the joint body 10 and the connecting joint 210, that is, the state in which the heat dissipation cold plate 200 performs airtightness detection. The second state refers to the state in which the clamping structure 40 does not clamp the joint body 10 and the connecting joint 210, that is, the state in which the heat dissipation cold plate 200 performs assembly or disassembly.
[0030] For the accuracy of description, please refer to the directions in this article. Figure 1For reference, the term "length direction X" refers to the arrangement direction of the conversion joint 30 and the clamping structure 40 in the airtight detection joint 100, that is, the left-right direction (where the positive direction of the X axis is right). The term "width direction Y" refers to the plug-in direction of the conversion joint 30 and the connecting joint 210 of the airtight detection joint 100, that is, the front-to-back direction (where the positive direction of the Y axis is front). The term "height direction Z" refers to the direction in which the joint body 10 in the airtight detection joint 100 moves relative to the clamping structure 40, that is, the up-down direction (where the positive direction of the Z axis is up). Among them, the length direction X, the width direction Y and the height direction Z together constitute the three orthogonal directions of the airtight detection joint 100. For the convenience of description, the up and down, left and right, and front and back positions in the utility model are relative positions and do not constitute a limitation to the implementation. The length direction X, the width direction Y and the height direction Z of the airtight detection joint 100 can be customized according to the specific structure of the product and the perspective of the drawings, and the utility model does not make specific limitations.
[0031] A heat dissipation channel 220 connected to the connecting joint 210 is provided in the heat dissipation cold plate 200. The heat dissipation channel 220 is used to store a heat dissipation medium, and the heat dissipation medium is used to take away the high energy generated by the heating device, thereby realizing heat dissipation of the heating device. The heat dissipation medium may include but is not limited to at least one of a liquid and a gas. For example, the heat dissipation medium may be water, oil, gas, etc. The heating device may be a battery, a server, etc. The airtightness detection joint 100 is used to connect the airtightness detector and the heat dissipation cold plate 200, so that the airtightness detector can detect whether there is a pressure leak in the heat dissipation cold plate 200. The airtightness detector is generally used to deliver high-pressure gas to the heat dissipation cold plate 200, such as but not limited to helium. Specifically, a vent interface 103 connected to the air path channel 101 and the airtightness detector is provided on the joint body 10. Exemplarily, in this embodiment, the vent interface 103 can function as an air inlet and an air outlet. Specifically, when performing the air tightness test, the air tightness tester guides the high-pressure gas through the ventilation interface 103, the air path channel 101, the vent hole 301 and the connecting joint 210 in sequence to the heat dissipation channel 220 of the heat dissipation cold plate 200 through positive pressure to achieve air tightness testing. After the air tightness testing step is completed, the high-pressure gas in the heat dissipation channel 220 is recovered to the air tightness tester through the negative pressure original path, thereby realizing the recycling of high-pressure gas, environmental protection and economy, and the user can complete the assembly of the outlet air path and the inlet air path through one wiring work, simplifying the setting of the outlet air path and the inlet air path, and the structure is simple. Of course, in a possible implementation method, the ventilation interface 103 can be set as an independent air inlet and outlet to achieve the recycling of high-pressure gas. It can be understood that the reliability of the connection between the air tightness detection joint 100 and the heat dissipation cold plate 200 will directly affect the accuracy of the air tightness test of the heat dissipation cold plate 200 by the air tightness tester. The embodiment of the utility model provides a clamping structure 40 to clamp the joint body 10 and the connecting joint 210, thereby improving the reliability and stability of the connection between the conversion joint 30 and the connecting joint 210 and improving the accuracy of air tightness detection.
[0032] Exemplarily, in the present embodiment, the clamping structure 40 includes a supporting portion 41 and a clamping portion 43. The supporting portion 41 is movably provided on the joint body 10, and the clamping portion 43 is connected to the supporting portion 41 and forms a clamping space 401 for clamping the joint body 10 and the connecting joint 210. Thus, on the one hand, the clamping structure 40 is movably provided on the joint body 10, so as to facilitate the adjustment of the position of the clamping structure 40 relative to the joint body 10, so as to realize the assembly and disassembly of the heat dissipation cold plate 200 and the joint body 10, and to realize that the clamping structure 40 does not need to be removed from the joint body 10 during the adjustment process, thereby simplifying the assembly efficiency of the clamping structure 40 and the connecting body and improving the detection efficiency; on the other hand, the clamping structure 40 can be used to clamp the joint body 10 and the connecting joint 210, thereby improving the reliability and stability of the connection between the conversion joint 30 and the connecting joint 210, and thereby improving the accuracy of the airtightness detection of the heat dissipation cold plate 200. The support portion 41 and the clamping portion 43 are integrally formed, thereby improving the overall structural strength of the clamping structure 40. Of course, in a possible implementation, the support portion 41 and the clamping portion 43 are independently provided and fixedly connected to each other, thereby facilitating the assembly and disassembly of the heat dissipation cold plate 200 and the airtightness detection joint 100.
[0033] In this embodiment, the number of the clamping structure 40 is one, and the clamping structure 40 is arranged close to the conversion joint 30, so that the connection between the connecting joint 210 and the conversion joint 30 is more stable during the air tightness detection process, and the service life of the clamping structure 40 is extended. In a possible implementation, the clamping structure 40 includes a plurality of clamping structures, and a conversion joint 30 is arranged between two adjacent clamping structures 40. For example, the clamping structure 40 includes two, and the conversion joint 30 is provided with a clamping structure 40 on both sides of the length direction X of the air tightness detection joint 100, so that the connection between the conversion joint 30 and the connecting joint 210 is subjected to a clamping force at both ends of the length direction X of the air tightness detection joint 100, thereby improving the reliability and stability of the connection between the conversion joint 30 and the connecting joint 210, and avoiding the problem of damage caused by uneven force on the conversion joint 30 and the connecting joint 210.
[0034] Exemplarily, in this embodiment, the clamping portion 43 includes a clamping section 431 connecting the support portion 41 and a connecting section 432 of the clamping section 431, and the clamping section 431 and the conversion joint 30 are located on the same side of the joint body 10. Thus, on the one hand, the joint body 10 and the connecting joint 210 are clamped between the support portion 41 and the clamping section 431, thereby avoiding the problem of the connecting joint 210 and the conversion joint 30 being loose and falling off; on the other hand, the clamping structure 40 does not directly act on the connection between the connecting joint 210 and the conversion joint 30, thereby avoiding the problem of the clamping force of the clamping structure 40 damaging the connecting joint 210 and the conversion joint 30; on the other hand, when performing air tightness testing, the joint body 10 and the heat dissipation cold plate 200 expand under the action of air pressure after inflation, and the joint body 10 and the connecting joint 210 are clamped in the clamping space 401 under the action of air pressure, thereby avoiding the problem of the connecting joint 210 and the conversion joint 30 being loose and falling off.
[0035] In the present embodiment, the clamping section 431 and the support portion 41 are configured as a straight rod-shaped structure, so as to facilitate processing and forming. Specifically, the clamping section 431 and the support portion 41 are arranged relative to each other in the width direction Y of the airtightness detection joint 100, so as to avoid the problem of damage caused by uneven force on the clamping structure 40. In a possible implementation, the clamping section 431 can also be configured as a curved rod-shaped structure, such as but not limited to a V-shaped rod-shaped structure, a C-shaped rod-shaped structure, a U-shaped structure, etc. Thus, increasing the contact area between the clamping section 431 and the connecting joint 210 can make the connection between the connecting joint 210 and the conversion joint 30 more stable during the airtightness detection process, and extend the service life of the clamping structure 40.
[0036] In a possible implementation, the connecting section 432 is used to stop the joint body 10, thereby preventing the joint body 10 from being disconnected from the clamping structure 40. In a possible implementation, the surface of the connecting section 432 facing the joint body 10 is parallel to the top surface of the joint body 10, thereby preventing the connecting section 432 from being damaged when the joint body 10 moves relative to the support portion 41.
[0037] In a possible implementation, the clamping structure 40 further includes a protrusion 45. The protrusion 45 is disposed at one end of the support portion 41 facing away from the clamping portion 43, and is used to stop the joint body 10, thereby preventing the joint body 10 from being separated from the clamping structure 40, simplifying the assembly efficiency of the clamping structure 40 and the joint body 10, saving assembly time, and preventing the clamping structure 40 from being lost.
[0038] In a possible implementation, the protruding height of the support portion 41 relative to the connecting section 432 is greater than the protruding height of the clamping section 431 relative to the connecting section 432, thereby facilitating the user to disassemble and install the heat dissipation cold plate 200. After the air tightness test is completed, the user presses the joint body so that the joint body drives the joint together with the heat dissipation cold plate 200 to move relative to the support portion 41 toward the side facing away from the clamping portion 43. When the connecting joint 210 is located outside the clamping space 401, the connecting joint 210 is separated from the abutment with the clamping section 431, thereby facilitating the user to disassemble the air tightness test joint 100 from the heat dissipation cold plate 200. Of course, in a possible implementation, when the support portion 41 and the clamping portion 43 are independent of each other, the protruding height of the support portion 41 relative to the connecting section 432 can also be equal to the protruding height of the clamping section 431 relative to the connecting section 432, and the utility model does not make specific limitations.
[0039] Please also read Figure 1 and Figure 3 , Figure 3 yes Figure 1 A cross-sectional view of the airtightness detection joint 100 and the heat dissipation cold plate 200 in the first state from a second viewing angle. In a possible implementation, an end of the clamping portion 43 facing away from the support portion 41 is provided with a avoidance structure 433 arranged to avoid the connection joint 210, so that there is no need to change the structure of the connection joint 210 of the existing heat dissipation cold plate 200, so as to achieve that the clamping portion 43 can adapt to the connection joint 210, and avoid the problem that the clamping portion 43 of the clamping structure 40 scratches the connection joint 210 during the assembly of the heat dissipation cold plate 200 and causes damage to the connection joint 210. A positioning groove 230 is provided at the position of the connection joint 210 corresponding to the avoidance structure, and the shape of the avoidance structure is adapted to the shape of the groove wall of the positioning groove 230, thereby improving the alignment assembly function of the clamping structure 40 and the heat dissipation cold plate 200 and improving the assembly efficiency.
[0040] In a possible implementation, the airtightness detection joint 100 further includes a stopper 50, which is disposed on the joint body 10 and is used to limit the position of the joint body 10 relative to the support portion 41. Thus, on the one hand, the setting of the stopper 50 can improve the alignment assembly of the joint body 10 and the support portion 41, simplify the assembly operation, and improve the assembly efficiency; on the other hand, the stopper 50 is installed on the joint body 10, and improves the compactness of the overall structure of the airtightness detection joint 100, which is suitable for the miniaturized design of the airtightness detection joint 100.
[0041] For example, in this embodiment, the stopper 50 is installed inside the joint body 10, so as to avoid the stopper 50 from colliding with the heat dissipation cold plate 200, prolong the service life of the stopper 50 and the heat dissipation cold plate 200, and avoid the stopper 50 from interfering with the assembly of the heat dissipation cold plate 200. Of course, in a possible implementation, the stopper 50 partially protrudes from the outside of the joint body 10, so as to facilitate the user to operate the stopper 50.
[0042] In a possible implementation, a limiting groove 402 is provided on the support portion 41. The limiting member 50 is used to cooperate with the limiting groove 402. Therefore, on the one hand, the cooperation between the limiting member 50 and the limiting groove 402 can achieve the fixation of the joint body 10, and on the other hand, the limiting groove 402 can play the function of supporting the limiting member 50, thereby reducing the friction between the limiting member 50 and the support portion 41, and extending the service life of the limiting member 50.
[0043] In this embodiment, the limiting groove 402 is configured as an arc groove, thereby reducing the angle between the groove wall of the limiting groove 402 and the side wall of the support portion 41 facing the clamping portion 43, thereby reducing the friction between the limiting member 50 and the support portion 41 during the movement of the limiting member 50 relative to the support portion 41, thereby extending the service life of the limiting member 50. Of course, in a possible implementation, the limiting groove 402 can also be configured as, but not limited to, a trapezoidal groove or a V-shaped groove.
[0044] Please also read Figure 4 and Figure 5 , Figure 4 yes Figure 1 A cross-sectional view of the airtightness detection joint 100 and the heat dissipation cold plate 200 in the second state from a first viewing angle; Figure 5 yes Figure 1A cross-sectional view of the airtightness detection joint 100 and the heat dissipation cold plate 200 in the second state from a second perspective. The number of the limiting grooves 402 may include one or more. Exemplarily, in the present embodiment, the limiting groove 402 includes a first groove 403 and a second groove 404. The first groove 403 may be configured as a through groove or a blind groove, and the second groove 404 may also be configured as a through groove or a blind groove. Exemplarily, in the present embodiment, since the side wall of the first groove 403 facing the clamping portion 43 is blocked by the clamping portion 43, the first groove 403 is configured as a through groove, thereby facilitating the processing and forming of the first groove 403. The second groove 404 is configured as a blind groove, thereby improving the aesthetics of the clamping structure 40. The first groove 403 and the second groove 404 are arranged at intervals along the height direction Z of the airtightness detection joint 100, thereby facilitating the assembly and disassembly operations of the heat dissipation cold plate 200 and the joint body 10. Specifically, the support portion 41 is provided with a first groove 403 at a position corresponding to the clamping section 431, and the support portion 41 is provided with a second groove 404 at a position outside the clamping section 431, so that when the limiting member 50 cooperates with the first groove 403, the joint body 10 is located in the clamping space 401, and the joint body 10 and the connecting joint 210 are clamped by the clamping structure 40, so that the joint body 10 and the connecting joint 210 are clamped in the clamping space 401 under the action of gas pressure, thereby avoiding the problem of the connecting joint 210 and the conversion joint 30 being loose and falling off; when the limiting member 50 cooperates with the second groove 404, the joint body 10 is located outside the clamping space 401, and the clamping portion 43 is separated from the contact with the connecting joint 210, thereby facilitating the assembly and disassembly of the conversion joint 30 and the connecting joint 210 of the heat dissipation cold plate 200, and improving the efficiency of assembly and positioning. Of course, in a possible implementation, the limiting groove 402 can only include the first groove 403.
[0045] In this embodiment, the limiter 50 is configured as a ball plunger, also called a spring plunger. Therefore, when adjusting the position of the joint body 10 relative to the support portion 41, there is no need to manually remove or install the limiter 50. The structure is simple, the operation is convenient, the assembly time is shortened, and the efficiency of air tightness detection is improved. The ball plunger is a spring installed inside the screw thread, and the preload force is adjusted and the positioning function is realized by controlling the screw-in depth. The limiter 50 includes a limit rod 52, a clamping joint 51, and an elastic member 53 elastically abutting between the clamping joint 51 and the limit rod 52. In this way, when the user presses the connector body 10 downward, the connector body 10 can slide relative to the support portion 41, and the clamping joint 51 slides out of the limiting groove 402. At this time, the clamping joint 51 is pressed by the support portion 41 to deform the elastic member 53. When the clamping joint 51 slides to the limiting groove 402, the clamping joint 51 is placed in the limiting groove 402 under the elastic force of the elastic member 53, thereby realizing that the limiting member 50 fixes the support portion 41 and the connector body 10, and realizing that when using the limiting member 50, it can be operated by hand without using tools, and the structure is simple, the operation is convenient, and it is easy to learn and use. Of course, in a possible implementation method, the limiting member 50 can also be positioned as a screw, a pin or other structure with a positioning function, which is not specifically limited in the embodiment of the utility model.
[0046] One end of the limiting rod 52 is connected to the joint body 10, and the other end of the limiting rod 52 is connected to the clamping joint 51, and the clamping joint 51 is used to fix the joint body 10 and the support part 41. The limiting rod 52 and the joint body 10 are fixedly connected together by screwing. Specifically, the joint body 10 is provided with a connecting hole 104 for the limiting rod 52 to pass through. The connecting hole 104 passes through the joint body 10 along the width direction Y of the airtightness detection joint 100, thereby facilitating the assembly of the limiting member 50 and the joint body 10 and improving the assembly efficiency. Of course, in a possible implementation, the limiting rod 52 can also be fixedly connected to the joint body 10 by clamping, welding or other methods.
[0047] The shape of the clamping joint 51 is hemispherical, thereby reducing the contact area of the limiter 50 relative to the support portion 41, reducing the wear of the clamping joint 51, extending the service life of the limiter 50, and facilitating alignment and assembly. Of course, in a possible implementation, the shape of the clamping joint 51 can also be, but not limited to, a trapezoid or a triangle.
[0048] Please also read Figure 2 and Figure 6 , Figure 6 yes Figure 1An enlarged view of the conversion joint 30 of the air tightness detection joint 100 in the figure cooperates with the first sealing ring 61, the second sealing ring 62 and the second sealing ring 62. The joint body 10 includes an air circuit plate 11 and a cover plate 12. The cover plate 12 is fixedly connected to the air circuit plate 11. The conversion joint 30 includes a first connection part 31 and a second connection part 32 connected to the first connection part 31. The first connection part 31 is sandwiched between the air circuit plate 11 and the cover plate 12, and is sealed to the air circuit plate 11. The second connection part 32 is passed through the cover plate 12 and is sealed to the connection joint 210. Therefore, on the one hand, the conversion joint 30 is sandwiched between the air circuit plate 11 and the cover plate 12, so as to realize the fixed connection between the conversion joint 30 and the joint body 10; on the other hand, the two ends of the conversion joint 30 are respectively sealed to the air circuit plate 11 and the connection joint 210, thereby improving the sealing of the connection between the heat dissipation cold plate 200 and the joint body 10, and improving the accuracy of the air tightness detection of the heat dissipation cold plate 200.
[0049] The gas circuit board 11 and the cover plate 12 can be detachably connected together, so as to facilitate the assembly, maintenance or replacement of the joint body 10, the conversion joint 30 and the stopper 50. For example, the gas circuit board 11 and the cover plate 12 can be fixedly connected together by means of screw locking, snap fastening, etc. Of course, in a possible implementation, after the conversion joint 30 and the stopper 50 are installed on the joint body 10, the gas circuit board 11 and the cover plate 12 can also be non-detachably connected together by means of gluing, welding, etc.
[0050] The gas circuit board 11 is provided with a receiving groove 102 connected with the gas circuit channel 101, so that the vent hole 301 is connected with the gas circuit channel 101. The first connecting portion 31 is received in the receiving groove 102, and the connection between the first connecting portion 31 and the second connecting portion 32 is provided with a first stopper 33 that stops the cover plate 12, so that the cover plate 12 can lock the conversion joint 30 on the gas circuit board 11, which is convenient for assembling the conversion joint 30 and the joint body 10, and improves the assembly efficiency.
[0051] In a possible implementation, the second connection portion 32 is further provided with a second stop portion 34 that stops the heat dissipation cold plate 200, thereby facilitating the assembly of the conversion joint 30 and the connection joint 210, improving the assembly efficiency, and avoiding the problem of damage to the connection joint 210 during the plugging process of the conversion joint 30. Of course, in a possible implementation, a positioning portion 212 that stops the second connection portion 32 may also be provided in the connection joint 210, thereby facilitating the assembly of the conversion joint 30 and the connection joint 210, improving the assembly efficiency, and avoiding the problem of damage to the connection joint 210 during the plugging process of the conversion joint 30. The end of the connection joint 210 or the end of the conversion joint 30 may also be provided with a chamfered structure, thereby facilitating the plug-in connection between the conversion joint 30 and the connection joint 210.
[0052] In a possible implementation, the airtightness detection joint 100 further includes a first sealing ring 61 and a second sealing ring 62. The first connection portion 31 is sealed and connected to the joint body 10 through the first sealing ring 61, and the second connection portion 32 is sealed and connected to the connection joint 210 through the second sealing ring 62. Thus, the sealing performance of the connection between the conversion joint 30 and the joint body 10 and the heat dissipation cold plate 200 is improved, and the accuracy of the airtightness detection of the heat dissipation cold plate 200 is improved.
[0053] In a possible implementation, the airtightness detection joint 100 further includes a third sealing ring 63. The second connection portion 32 is sealed and connected to the connection joint 210 through the second sealing ring 62 and the third sealing ring 63. The third sealing ring 63 is located between the first sealing ring 61 and the second sealing ring 62, and the hardness of the third sealing ring 63 is greater than the hardness of the second sealing ring 62. Thus, the arrangement of the first sealing ring 61 and the second sealing ring 62 realizes the dual sealing function of the second connection portion 32 and the connection joint 210, and improves the sealing connection effect between the conversion joint 30 and the heat dissipation cold plate 200; on the other hand, based on the fact that the hardness of the third sealing ring 63 close to the joint body 10 is greater than the hardness of the second sealing ring 62 facing away from the joint body 10, it is convenient to introduce the conversion joint 30 and the second sealing ring 62 into the connection joint 210, and the third sealing ring 63 fits tightly with the connection joint 210 and the conversion joint 30, thereby improving the sealing effect and thus improving the accuracy of airtightness detection. It should be noted that the number of the third sealing rings 63 may include one or more, and the number of the first sealing rings 61 may also include multiple, which is not specifically limited in the embodiment of the present utility model.
[0054] Exemplarily, in the present embodiment, the conversion joint 30 is provided with a plurality of waterproof grooves 302 for accommodating the same. The number of the waterproof grooves 302 corresponds to the number of the sealing rings. The first sealing ring 61, the second sealing ring 62 and the third sealing ring 63 are installed in the corresponding waterproof grooves 302. Thus, on the one hand, the problem of the first sealing ring 61, the second sealing ring 62 and the third sealing ring 63 being offset during the assembly process of the heat dissipation cold plate 200 and the airtightness detection joint 100 to reduce the sealing effect is avoided, and on the other hand, the processing of the waterproof groove 302 is facilitated. Of course, in a possible implementation, the connection joint 210 or the joint body 10 may also be provided with a waterproof groove 302, which is not specifically limited in the present utility model.
[0055] The embodiments of the present invention are described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.
Claims
1. An airtightness detection joint, used for sealing connection with a connection joint of a heat dissipation cold plate, characterized in that: The airtightness detection joint comprises: A joint body, wherein a gas path is provided in the joint body; A conversion joint, which is sealed and connected to the joint body and the connecting joint, and the conversion joint is provided with a vent hole connected to the air passage and the connecting joint; The clamping structure is installed on the joint body and is used to clamp the joint body and the connecting joint.
2. The airtightness detection joint according to claim 1, characterized in that: The clamping structure comprises a supporting portion and a clamping portion, wherein the supporting portion is movably arranged on the joint body, and the clamping portion is connected to the supporting portion and forms a clamping space for clamping the joint body and the connecting joint.
3. The airtightness detection joint according to claim 2, characterized in that: The clamping portion comprises a clamping section connecting the supporting portion and a connecting section of the clamping section, and the clamping section and the conversion joint are located on the same side of the joint body.
4. The airtightness detection joint according to claim 2, characterized in that: An end of the clamping portion facing away from the supporting portion is provided with a avoiding structure arranged to avoid the connecting joint.
5. The airtightness detection joint according to claim 2, characterized in that: The airtightness detection joint further comprises a limiter, which is arranged on the joint body and is used to limit the position of the joint body relative to the supporting part.
6. The airtightness detection joint according to claim 5, characterized in that: The support portion is provided with a limiting groove, and the limiting member is used to cooperate with the limiting groove.
7. The airtightness detection joint according to claim 5, characterized in that: The limiting member is configured as a ball plunger.
8. The airtightness detection joint according to claim 1, characterized in that: The clamping structure includes one, and the clamping structure is arranged close to the conversion joint; or the clamping structure includes multiple, and the conversion joint is arranged between two adjacent clamping structures.
9. The airtightness detection joint according to claim 1, characterized in that: The conversion joint includes a first connection part and a second connection part connected to the first connection part. The airtightness detection joint also includes a first sealing ring and a second sealing ring. The first connection part is sealed and connected to the joint body through the first sealing ring, and the second connection part is sealed and connected to the connecting joint through the second sealing ring.
10. The airtightness detection joint according to claim 9, characterized in that: The airtight detection joint also includes a third sealing ring. The second connecting part is sealed and connected to the connecting joint via the second sealing ring and the third sealing ring. The third sealing ring is located between the first sealing ring and the second sealing ring. The hardness of the third sealing ring is greater than that of the second sealing ring.