Butt joint positioning mechanism for airtight test of liquid cooling plate

Abstract

The utility model discloses a butt-joint positioning mechanism for an airtight test of a liquid cooling plate. The butt-joint positioning mechanism comprises a positioning tool, a horizontal transfer module and an airtight butt-joint module, wherein the horizontal transfer module is used for driving the positioning tool to move between a feeding and discharging station and a detection station, and the airtight butt-joint module is arranged at the detection station; the airtight butt joint module comprises a support arranged on the right side of the detection station, a first airtight joint assembly which is fixed on the support and is in butt joint with a first water nozzle at the upper part of the liquid cooling plate, and a second airtight joint assembly which is fixed on the support and is in butt joint with a second water nozzle at the lower part of the liquid cooling plate; the first airtight connector assembly and the second airtight connector assembly each comprise a third air cylinder fixed to the support, a third supporting plate driven by the third air cylinder to move up and down, an XY floating module arranged on the third supporting plate and an airtight connector arranged at the floating tail end of the XY floating module. According to the utility model, each airtight joint can be subjected to self-adaptive floating in the XY direction, and the problem of poor airtightness caused by product manufacturing errors is effectively eliminated.

Description

[Technical Field]

[0001] This utility model belongs to the technical field of airtightness testing equipment, and in particular relates to a liquid-cooled plate airtightness testing docking and positioning mechanism. [Background Technology]

[0002] Battery modules are the power batteries for electric vehicles. Battery modules typically use liquid cooling plates to cool the battery cells. To ensure the reliability of their function, the liquid cooling plates need to be tested for air tightness after they are manufactured.

[0003] Existing technology patent CN220751467U discloses an adaptive floating liquid-cooled plate airtightness testing mechanism, which includes an upper first sealing head and a lower second sealing head. The two sealing heads are set on the same XY floating assembly to achieve adaptive sealing docking of the upper and lower water nozzles of the liquid-cooled plate. However, in actual application, the product itself has dimensional errors, and the relative positions of the upper and lower water nozzles may differ in different liquid-cooled plates. Therefore, when the first sealing head achieves adaptive floating sealing docking with the upper water nozzle, the second sealing head may not be able to achieve adaptive floating sealing docking with the lower water nozzle. As a result, there will always be a misalignment between the sealing head and the product water nozzle after insertion, leading to poor airtightness.

[0004] Therefore, it is necessary to provide a new liquid-cooled plate airtightness testing docking and positioning mechanism to solve the above-mentioned technical problems. [Utility Model Content]

[0005] The main purpose of this invention is to provide a liquid-cooled plate airtightness testing docking and positioning mechanism, which can adaptively float each airtight joint in the XY direction, effectively eliminating the problem of poor airtightness caused by product manufacturing errors.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a liquid-cooled plate airtightness testing docking and positioning mechanism, comprising a positioning fixture for fixing the liquid-cooled plate, a horizontal transfer module for driving the positioning fixture to move between the loading / unloading station and the testing station, and an airtight docking module disposed at the testing station; the airtight docking module comprises a support disposed on the right side of the testing station, a first airtight connector assembly fixed on the support and docking with a first water nozzle on the upper part of the liquid-cooled plate, and a second airtight connector assembly fixed on the support and docking with a second water nozzle on the lower part of the liquid-cooled plate; both the first airtight connector assembly and the second airtight connector assembly comprise a third cylinder fixed on the support, a third support plate driven by the third cylinder to move up and down, an XY floating module disposed on the third support plate, and an airtight connector disposed at the floating end of the XY floating module.

[0007] Furthermore, the positioning fixture includes a support base plate, a plurality of contour limiting blocks disposed on the support base plate and distributed around the periphery of the liquid cooling plate, a first lateral pressing assembly located on the left side of the support base plate and pressing the liquid cooling plate to the right, and a second lateral pressing assembly located on the rear side of the support base plate and pressing the liquid cooling plate forward.

[0008] Furthermore, both the first lateral clamping assembly and the second lateral clamping assembly include a first cylinder, a first support plate that is horizontally moved by the first cylinder, and a side pressure plate that is horizontally and elastically floating outside the first support plate.

[0009] Furthermore, the horizontal transfer module includes a driving component and a second support plate that is driven by the driving component to move between the loading / unloading station and the detection station, and the positioning fixture is integrally disposed on the second support plate.

[0010] Furthermore, a locking assembly is provided at the testing station below the second support plate; a locking hole is provided on the lower surface of the second support plate, and the locking assembly includes a second cylinder and a locking rod driven upward by the second cylinder to be inserted into the locking hole.

[0011] Furthermore, the XY floating module includes an X-axis floating component disposed below the third support plate, a first floating plate disposed at the floating end of the X-axis floating component, a Y-axis floating component disposed below the first floating plate, and a second floating plate disposed at the floating end of the Y-axis floating component.

[0012] Furthermore, both the X-axis floating assembly and the Y-axis floating assembly include a pair of elastic components arranged along a first diagonal, a pair of wedge block assemblies arranged along a second diagonal, and a pair of slider assemblies; the elastic components include a first limiting block and a second limiting block arranged opposite each other left and right or front and back, and a second spring arranged between the first limiting block and the second limiting block; the wedge block assembly includes a first V-shaped block and a second V-shaped block arranged opposite each other up and down, wherein a V-shaped groove is formed on the surface of one of the first V-shaped blocks and a V-shaped protrusion that mates with the V-shaped groove is provided on the surface of the other V-shaped block; the slider assembly includes a slide rail and a slider that mates with the slide rail.

[0013] Furthermore, in the X-axis floating assembly, the first limiting block, the first V-block, and the slide rail are fixed to the third support plate; the second limiting block, the second V-block, and the slider are fixed to the first floating plate.

[0014] In the Y-axis floating assembly, the first limiting block, the first V-block, and the slide rail are fixed to the first floating plate; the second limiting block, the second V-block, and the slider are fixed to the second floating plate.

[0015] Furthermore, it also includes a clamping module; the clamping module includes a fourth cylinder fixed on the support and an upper pressure plate driven by the fourth cylinder to move up and down.

[0016] Furthermore, it also includes an airtightness detection and control system connected to the airtight joint.

[0017] Compared with the prior art, the beneficial effects of the liquid-cooled plate airtightness testing docking and positioning mechanism of this utility model are as follows: by designing a miniaturized XY floating module, and configuring the XY floating module on the first airtight joint that connects to the upper water nozzle of the liquid-cooled plate and the second airtight joint that connects to the lower water nozzle of the liquid-cooled plate respectively, the floating structure is directly set on each sealing joint, so that each sealing joint has an independent correction effect, and individual joints will not be misaligned due to the size deviation of the product itself, effectively eliminating the problem of poor airtightness caused by product manufacturing errors. [Attached Image Description]

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the positioning tooling used in the implementation of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the airtight docking module in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the XY floating module in an embodiment of this utility model;

[0022] Figure 5 This is an exploded view of the XY floating module in an embodiment of the present invention;

[0023] The numbers in the image represent:

[0024] 100 - Liquid-cooled plate airtightness test docking and positioning mechanism; 200 - Liquid-cooled plate; 201 - First water nozzle; 202 - Second water nozzle;

[0025] 1-Positioning fixture, 11-Supporting base plate, 12-Contour limiting block, 13-First lateral clamping assembly, 131-First cylinder, 132-First support plate, 133-Side pressure plate, 134-First spring, 14-Second lateral clamping assembly;

[0026] 2-Horizontal transfer module, 21-Driver, 22-Second support plate;

[0027] 3-Airtight docking module, 31-Support, 32-First airtight joint assembly, 321-Third cylinder, 322-Third support plate, 323-XY floating module, 3231-X-axis floating assembly, 32311-Elastic assembly, 32312-Wedge block assembly, 32313-Slider assembly, 3232-First floating plate, 3233-Y-axis floating assembly, 3234-Second floating plate, 323a-First limiting block, 323b-Second limiting block, 323c-Second spring, 323d-First V-block, 323e-Second V-block, 323f-Slide rail, 323g-Slider, 324-Airtight joint, 33-Second airtight joint assembly;

[0028] 4-Locking assembly, 41-Second cylinder, 42-Locking rod;

[0029] 5-Pressure module, 51-Fourth cylinder, 52-Upper pressure plate.

Detailed Implementation Methods

[0030] Example 1:

[0031] Please refer to Figures 1-5 This embodiment is a liquid-cooled plate airtightness testing docking and positioning mechanism 100, which includes a positioning fixture 1 for fixing the liquid-cooled plate 200, a horizontal transfer module 2 for driving the positioning fixture 1 to move between the loading / unloading station and the testing station, and an airtight docking module 3 set at the testing station.

[0032] The positioning fixture 1 includes a support base plate 11, several contour limiting blocks 12 disposed on the support base plate 11 and distributed around the periphery of the liquid cooling plate 200, a first lateral pressing assembly 13 located on the left side of the support base plate 11 and pressing the liquid cooling plate 200 to the right, and a second lateral pressing assembly 14 located on the rear side of the support base plate 11 and pressing the liquid cooling plate 200 forward.

[0033] The first lateral clamping assembly 13 and the second lateral clamping assembly 14 have the same structure, and both include a first cylinder 131, a first support plate 132 that is horizontally moved by the first cylinder 131, and a side pressure plate 133 that is horizontally and elastically floated outside the first support plate 132. A plurality of first springs 134 are provided between the first support plate 132 and the side pressure plate 133 to achieve horizontal elastic floating of the side pressure plate 133, thereby flexibly clamping and positioning the liquid cooling plate 200 and preventing deformation of the liquid cooling plate 200.

[0034] The horizontal transfer module 2 includes a driving component 21 and a second support plate 22 driven by the driving component 21 to move between the loading / unloading station and the inspection station. The positioning fixture 1 is integrally set on the second support plate 22.

[0035] To ensure the positional stability of the second support plate 22 at the testing station and prevent displacement of the liquid cooling plate 200 due to force during airtightness testing, a locking assembly 4 is provided below the second support plate 22 at the testing station in this embodiment. A locking hole (not shown in the figure) is provided on the lower surface of the second support plate 22. The locking assembly 4 includes a second cylinder 41 and a locking rod 42 driven upward by the second cylinder 41 and inserted into the locking hole. After the second support plate 22 moves to the testing station, the locking rod 42 moves upward and inserts into the locking hole, locking the position of the second support plate 22 and preventing displacement of the second support plate 22 due to the instantaneous impact of the liquid cooling plate 200.

[0036] The upper surface of the liquid cooling plate 200 is provided with a first water nozzle 201, and the lower surface is provided with a second water nozzle 202. The first water nozzle 201 and the second water nozzle 202 are connected to the internal cavity or internal pipeline of the liquid cooling plate 200, one for the inflow of cooling medium and the other for the outflow of cooling medium.

[0037] Because airtightness testing requires simultaneous connection of the first water nozzle 201 and the second water nozzle 202 using an airtight connector, and the first and second water nozzles are not vertically aligned, and the liquid cooling plate 200 itself has manufacturing errors, the actual positions of the first water nozzle 201 and the second water nozzle 202 on the liquid cooling plate 200 under test may differ from the system's set positions. To compensate for the manufacturing errors of the liquid cooling plate 200 and ensure that the airtight connector can accurately and reliably connect with the water nozzles, preventing poor airtightness connection from affecting the airtightness test results, this embodiment optimizes the design of the airtight connection module 3. Specifically:

[0038] The airtight docking module 3 includes a support 31 disposed on the right side of the testing station, a first airtight connector assembly 32 fixed on the support 31 and docked with the first water nozzle 201, and a second airtight connector assembly 33 fixed on the support 31 and docked with the second water nozzle 202.

[0039] Both the first airtight joint assembly 32 and the second airtight joint assembly 33 include a third cylinder 321 fixed on the support 31, a third support plate 322 driven by the third cylinder 321 to move up and down, an XY floating module 323 disposed on the third support plate 322, and an airtight joint 324 disposed at the floating end of the XY floating module 323.

[0040] In this embodiment, the upper and lower airtight joints 324 are each configured with an XY floating module 323. Regardless of the position deviation of the water nozzle on the liquid cooling plate 200, they can be adaptively floated and docked to ensure that each airtight joint 324 can seal and dock with its corresponding water nozzle.

[0041] Furthermore, the XY floating module 323 requires centering and resetting after each adaptive float. After prolonged use, the position of a conventional XY floating module after centering and resetting may deviate. To improve the accuracy of centering and resetting and extend the service life of the XY floating module 323, this embodiment optimizes the structure of the XY floating module 323. Specifically, the XY floating module 323 includes an X-axis floating assembly 3231 disposed below the third support plate 322, a first floating plate 3232 disposed at the floating end of the X-axis floating assembly 3231, a Y-axis floating assembly 3233 disposed below the first floating plate 3232, and a second floating plate 3234 disposed at the floating end of the Y-axis floating assembly 3233. Both the X-axis floating assembly 3231 and the Y-axis floating assembly 3233 include a pair of elastic components 32311 disposed along a first diagonal, a pair of wedge components 32312 disposed along a second diagonal, and a pair of slider components 32313. The elastic component 32311 includes a first limiting block 323a and a second limiting block 323b arranged opposite each other left and right or front and back, and a second spring 323c disposed between the first limiting block 323a and the second limiting block 323b; the wedge component 32312 includes a first V-shaped block 323d and a second V-shaped block 323e arranged opposite each other up and down, wherein a V-shaped groove is formed on the surface of one V-shaped block and a V-shaped protrusion that mates with the V-shaped groove is provided on the surface of the other V-shaped block; the slider component 32313 includes a slide rail 323f and a slider 323g that mates with the slide rail 323f.

[0042] In the X-axis floating assembly 3231, the first limiting block 323a, the first V-block 323d, and the slide rail 323f are fixed on the third support plate 322; the second limiting block 323b, the second V-block 323e, and the slider 323g are fixed on the first floating plate 3232.

[0043] In the Y-axis floating assembly 3233, the first limiting block 323a, the first V-block 323d, and the slide rail 323f are fixed on the first floating plate 3232; the second limiting block 323b, the second V-block 323e, and the slider 323g are fixed on the second floating plate 3234.

[0044] The slider assembly 32313 mainly realizes the sliding connection between the first floating plate 3232 and the third support plate 322, and between the first floating plate 3232 and the second floating plate 3234.

[0045] The elastic component 32311 mainly realizes the elastic floating between the first floating plate 3232 and the third support plate 322, and between the first floating plate 3232 and the second floating plate 3234.

[0046] The wedge assembly 32312 mainly limits the floating range between the first floating plate 3232 and the third support plate 322, and between the first floating plate 3232 and the second floating plate 3234, and causes the first floating plate 3232 and the second floating plate 3234 to reset.

[0047] Conventional XY floating modules rely solely on springs for reset, which are prone to elastic fatigue after prolonged use, resulting in poor reset accuracy. In contrast, the XY floating module 323 in this embodiment adds a wedge assembly 32312, which uses a V-groove and a V-protrusion to facilitate the reset of the floating plate, effectively solving the problem of poor reset accuracy caused by spring fatigue.

[0048] To further ensure the positional stability of the liquid cooling plate 200 during testing, this embodiment also includes a clamping module 5 near the airtight docking module 3. The clamping module 5 includes a fourth cylinder 51 fixed on the support 31 and an upper pressure plate 52 driven by the fourth cylinder 51 to move up and down. The upper pressure plate 52 clamps the liquid cooling plate 200 near the water nozzle, ensuring that the liquid cooling plate will not move when the airtight connector 324 docks with the water nozzle on the liquid cooling plate.

[0049] The airtight connector 324 is connected to an external airtightness detection and control system.

[0050] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A liquid-cooled plate airtightness testing docking and positioning mechanism, characterized in that: It includes a positioning fixture for fixing the liquid cooling plate, a horizontal transfer module for driving the positioning fixture to move between the loading / unloading station and the inspection station, and an airtight docking module set at the inspection station; the airtight docking module includes a support set on the right side of the inspection station, a first airtight connector assembly fixed on the support and docking with a first water nozzle on the upper part of the liquid cooling plate, and a second airtight connector assembly fixed on the support and docking with a second water nozzle on the lower part of the liquid cooling plate; both the first airtight connector assembly and the second airtight connector assembly include a third cylinder fixed on the support, a third support plate driven by the third cylinder to move up and down, an XY floating module set on the third support plate, and an airtight connector set at the floating end of the XY floating module.

2. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 1, characterized in that: The positioning fixture includes a support base plate, several contour limiting blocks disposed on the support base plate and distributed around the periphery of the liquid cooling plate, a first lateral pressing assembly located on the left side of the support base plate and pressing the liquid cooling plate to the right, and a second lateral pressing assembly located on the rear side of the support base plate and pressing the liquid cooling plate forward.

3. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 2, characterized in that: Both the first lateral clamping assembly and the second lateral clamping assembly include a first cylinder, a first support plate that is horizontally moved by the first cylinder, and a side pressure plate that is horizontally and elastically floated on the outside of the first support plate.

4. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 1, characterized in that: The horizontal transfer module includes a driving component and a second support plate that is driven by the driving component to move between the loading / unloading station and the detection station. The positioning fixture is integrally mounted on the second support plate.

5. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 4, characterized in that: A locking assembly is provided at the testing station below the second support plate; a locking hole is provided on the lower surface of the second support plate, and the locking assembly includes a second cylinder and a locking rod that is driven upward by the second cylinder and inserted into the locking hole.

6. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 1, characterized in that: The XY floating module includes an X-axis floating component disposed below the third support plate, a first floating plate disposed at the floating end of the X-axis floating component, a Y-axis floating component disposed below the first floating plate, and a second floating plate disposed at the floating end of the Y-axis floating component.

7. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 6, characterized in that: Both the X-axis floating assembly and the Y-axis floating assembly include a pair of elastic components arranged along a first diagonal, a pair of wedge block assemblies arranged along a second diagonal, and a pair of slider assemblies. The elastic components include a first limiting block and a second limiting block arranged opposite each other left and right or front and back, and a second spring arranged between the first limiting block and the second limiting block. The wedge block assembly includes a first V-shaped block and a second V-shaped block arranged opposite each other up and down. One of the first V-shaped blocks and the second V-shaped block has a V-shaped groove formed on its surface, and the other V-shaped block has a V-shaped protrusion that mates with the V-shaped groove on its surface. The slider assembly includes a slide rail and a slider that mates with the slide rail.

8. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 7, characterized in that: In the X-axis floating assembly, the first limiting block, the first V-block, and the slide rail are fixed to the third support plate; the second limiting block, the second V-block, and the slider are fixed to the first floating plate. In the Y-axis floating assembly, the first limiting block, the first V-block, and the slide rail are fixed to the first floating plate; the second limiting block, the second V-block, and the slider are fixed to the second floating plate.

9. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 1, characterized in that: It also includes a clamping module; the clamping module includes a fourth cylinder fixed on the support and an upper pressure plate driven by the fourth cylinder to move up and down.

10. The liquid-cooled plate airtightness testing docking and positioning mechanism as described in claim 1, characterized in that: It also includes an airtightness detection and control system connected to the airtight joint.

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