Auxiliary jig for detecting liquid cooling plate

Abstract

The utility model relates to an auxiliary jig for detecting a liquid cooling plate. The auxiliary jig comprises a jig plate; the profiling groove is formed in the top of the jig plate; a pressing plate; the outer pressing assembly is fixed to the top of the jig plate, and the pressing plate is pressed above the profiling groove through the outer pressing assembly; and the inner pressing assembly is arranged in the pressing plate in a height-adjustable manner and is used for pressing the liquid cooling plate in the profiling groove. When the auxiliary jig for detecting the liquid cooling plate is used for detecting, the liquid cooling plate is placed in the profiling groove of the jig plate, the pressing plate is rigidly pressed at the top of the jig plate through the outer pressing assembly, and finally the liquid cooling plate is elastically pressed in the profiling groove through the inner pressing assembly, so that the liquid cooling plate can be detected, the surface of the liquid cooling plate cannot be damaged, and the working efficiency of the liquid cooling plate is improved. And meanwhile, the detection efficiency and the accuracy of a detection result are also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection fixtures, and in particular relates to an auxiliary fixture for detecting a liquid cooling plate. Background Art

[0002] With the rise of new energy vehicles, power batteries have also entered a period of rapid development. Power batteries consist of battery cells and liquid cooling plates. During operation, circulating water is passed through the liquid cooling plates to cool the battery cells and prevent them from overheating and causing fires or explosions due to prolonged operation.

[0003] After production, liquid cold plates must be inspected for flatness. The key reason for this flatness test is to ensure the proper fit between the battery cells and the cold plate. A larger fit area improves heat dissipation. Poor flatness can lead to point contact between the cells, resulting in uneven heat dissipation across the cell. In such cases, thermally conductive silicone pads are required to compensate for any flatness variations, increasing production costs.

[0004] The existing liquid cooling plate flatness test is to place the liquid cooling plate on a testing machine for testing. Due to the influence of the internal flow channel factors of the liquid cooling plate, the surface of the liquid cooling plate is uneven. Direct testing on the machine will result in inaccurate measurement and may damage the liquid cooling plate. Therefore, a fixture is urgently needed to assist in the flatness detection of the liquid cooling plate. Utility Model Content

[0005] The utility model provides an auxiliary jig for detecting a liquid cooling plate, which solves the defects of the existing detection method such as inaccurate measurement and damage to the liquid cooling plate.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an auxiliary fixture for liquid cooling plate detection, which includes:

[0007] jig board;

[0008] A profiling groove, the profiling groove being provided on the top of the jig plate;

[0009] pressure plate;

[0010] An external pressing assembly is fixed to the top of the jig plate and presses the pressing plate onto the top of the contoured groove;

[0011] The internal pressing assembly is arranged in the pressing plate in an adjustable height and is used for pressing the liquid cooling plate in the contoured groove.

[0012] Optimally, the external pressing assembly includes a base fixed on the top of the jig plate, a flip plate and a connecting plate rotatably mounted on the top of the base, a pressing handle rotatably connected to the flip plate and the connecting plate respectively, and a pressing mechanism adjustably arranged on the flip plate.

[0013] Optimally, the pressing mechanism includes an upper fixing plate adjustably arranged on the top of the flip plate, a lower fixing plate adjustably arranged on the bottom of the flip plate, a stud passing through the upper fixing plate and the lower fixing plate, and a pressure head integrally connected to the bottom of the stud.

[0014] Optimally, the pressing mechanism also includes an upper folding piece integrally connected to both sides of the upper fixing plate and bent downward, a lower folding piece integrally connected to both sides of the lower fixing plate and bent upward, and an upper locking nut and a lower locking nut screwed on the stud, the upper locking nut rests on the top of the upper fixing plate, and the lower locking nut rests on the bottom of the lower fixing plate.

[0015] Optimally, the internal pressing assembly includes a screw rod that passes through the pressing plate in an adjustable height and a pressing block fixed at the bottom of the screw rod.

[0016] Optimally, the internal pressing assembly further comprises a first limiting nut and a second limiting nut screwed on the screw rod, wherein the first limiting nut abuts against the top of the pressing plate.

[0017] Optimally, it also includes a positioning column fixed on the top of the fixture plate, a positioning hole passing through the pressure plate and cooperating with the positioning column, an avoidance groove opened at the bottom of the pressure plate, and a detection groove vertically passing through the pressure plate.

[0018] Optimally, the pressing block is made of rubber.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] When testing the auxiliary fixture for liquid cooling plate detection, the liquid cooling plate is placed in the contoured groove of the fixture plate, the pressing plate is rigidly pressed against the top of the fixture plate by the external pressing assembly, and finally the liquid cooling plate is elastically pressed into the contoured groove by the internal pressing assembly on the pressing plate. Finally, the liquid cooling plate is tested, which will not damage the surface of the liquid cooling plate and also improves the efficiency of the test and the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the fixture plate of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the pressing plate of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the internal press-fit assembly of the present invention;

[0025] Figure 5 This is a schematic structural diagram of the external press-fit assembly of the present invention;

[0026] Figure 6 This is a front view of the external press-fit assembly of the utility model;

[0027] Description of reference numerals:

[0028] 1. Fixture plate; 2. Profiling groove; 3. Positioning column; 4. Pressing plate; 5. Positioning hole; 6. Threaded hole; 7. Avoidance groove; 8. Inspection groove; 9. Screw; 10. Inserting column; 11. Pressing block; 12. First limiting nut; 13. Second limiting nut; 14. Guide section; 15. Base; 16. Flip plate; 17. Pressing handle; 18. Connecting plate; 19. Upper fixing plate; 20. Upper folding plate; 21. Lower fixing plate; 22. Lower folding plate; 23. Stud; 24. Pressing head; 25. Upper locking nut; 26. Lower locking nut. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0030] like Figure 1 As shown in FIG, it is a schematic diagram of the structure of the auxiliary fixture for liquid cooling plate detection of the utility model, which is usually used to assist the liquid cooling plate in flatness detection. It includes a fixture plate 1, a contoured groove 2, a pressing plate 4, an outer pressing component and an inner pressing component. Figure 2 , which is a structural diagram of the jig plate 1 , the jig plate 1 mainly plays a supporting role, and the material of the jig plate 1 is ceramic or bakelite.

[0031] A contoured groove 2 is defined at the top of the jig plate 1. This groove matches the shape of the liquid cooling plate to be tested, and the plate is placed within it during testing. Positioning posts 3 are fixed to the top of the jig plate 1 at intervals. A pressure plate 4 is provided with positioning holes 5 that mate with the positioning posts 3. When placing the pressure plate 4, align the positioning holes 5 with the positioning posts 3, and the pressure plate 4 is installed. This ensures more accurate placement of the pressure plate 4 and prevents it from shifting on the jig plate 1 when the liquid cooling plate is pressed together.

[0032] like Figure 3 Figure 2 shows the structure of the pressure plate 4. Positioning holes 5 are provided on both sides of the pressure plate 4, which mate with the positioning posts 3 to facilitate installation. Threaded holes 6 extend vertically through the pressure plate 4 and are used to install the internal press-fit assembly. When the external press-fit assembly presses the pressure plate 4, the internal press-fit assembly compresses the liquid cooling plate within the contoured groove 2.

[0033] The detection groove 8 vertically passes through the pressure plate 4. When the internal pressing assembly presses the liquid cooling plate in the contoured groove 2, the detection groove 8 can be set to avoid the detection point, ensuring that the detection probe can pass through the detection groove 8 and smoothly rest on the upper surface of the liquid cooling plate to perform flatness detection on the liquid cooling plate.

[0034] The avoidance groove 7 is provided at the bottom of the pressing plate 4 . The avoidance groove 7 is used to avoid the position of the internal pressing assembly, ensuring that the liquid cooling plate is pressed by the internal pressing assembly instead of being pressed by the pressing plate 4 .

[0035] like Figure 4 Figure 2 shows the structure of the internal press-fit assembly, which is height-adjustably mounted on the pressure plate 4. As the pressure plate 4 tightens, it presses the liquid cooling plate into the contoured groove 2. The internal press-fit assembly includes a screw 9, a post 10, a pressure block 11, a first retaining nut 12, a second retaining nut 13, and a guide section 14. The outer circumference of the screw 9 is provided with external threads that mate with the threaded hole 6. During installation, the screw 9 is screwed into the threaded hole 6 by twisting, and the distance between the screw 9 and the liquid cooling plate can be adjusted by twisting the screw 9.

[0036] The guide section 14 is integrally connected to the top of the screw 9. The diameter of the guide section 14 is smaller than the outer diameter of the screw 9. The provision of the guide section 14 makes it easier for the screw 9 to be screwed into the threaded hole 6. The plug 10 is integrally connected to the bottom of the screw 9. The pressure block 11 is inserted into the plug 10. As the pressure plate 4 is tightened, the pressure block 11 presses the liquid cooling plate into the contoured groove 2.

[0037] The material of the pressure block 11 is rubber, and the elasticity of the rubber material is used to avoid indentations on the liquid cooling plate when it is compressed (because the liquid cooling plate has a hollow liquid flow channel inside, so rigid compression will flatten the surface of the liquid cooling plate). By adjusting the depth of the knob of the screw 9, the distance between the pressure block 11 and the liquid cooling plate can be adjusted. As the pressure plate 4 is tightened, the pressure applied by the pressure block 11 to the liquid cooling plate can be adjusted, thus ensuring the versatility and diversity of the fixture.

[0038] The first limiting nut 12 and the second limiting nut 13 are respectively screwed onto the screw rod 9, with the first limiting nut 12 resting on the upper surface of the pressure plate 4, and the second limiting nut 13 resting on the upper surface of the first limiting nut 12, thereby limiting the position of the screw rod 9 after position adjustment. After multiple tests, if the position of the screw rod 9 changes, simply rotate the screw rod 9 to make the first limiting nut 12 fit the upper surface of the pressure plate 4.

[0039] like Figure 5 、 6The figure shows a schematic diagram of the structure of the external pressing assembly, which is fixed to the top of the jig plate 1 and is used to press the pressure plate 4. The internal pressing assembly on the pressure plate 4 then presses the liquid cooling plate into the contoured groove 2. The external pressing assembly includes a base 15, a flip plate 16, a pressure handle 17, a connecting plate 18, an upper fixed plate 19, an upper folding plate 20, a lower fixed plate 21, a lower folding plate 22, a stud 23, a pressure head 24, an upper locking nut 25, and a lower locking nut 26. The base 15 is fixed to the top of the jig plate 1 by screw fastening, and the flip plate 16 and the connecting plate 18 are respectively connected to the top of the base 15 by pivoting. The pressure handle 17 is respectively connected to the flip plate 16 and the connecting plate 18 by pivoting. The rotation of the pressure handle 17 drives the flip plate 16 to rotate to press the pressure plate 4.

[0040] An upper fixing piece 19 is placed on the top of the flip plate 16. Upper folding pieces 20 are integrally connected to both sides of the upper fixing piece 19 and are bent downward. The upper folding pieces 20 prevent the upper fixing piece 19 from slipping off the sides of the flip plate 16. A lower fixing piece 21 is placed on the bottom of the flip plate 16. Lower folding pieces 22 are integrally connected to both sides of the lower fixing piece 21 and are bent upward. The lower folding pieces 22 prevent the lower fixing piece 21 from slipping off the sides of the flip plate 16.

[0041] The upper and lower fixing plates 19 and 21 each have through-holes through which studs 23 pass. The diameter of the through-holes is larger than that of the studs 23, allowing the studs 23 to be adjusted in height within the through-holes. An upper locking nut 25 screws onto the studs 23 and rests against the top of the upper fixing plate 19. A lower locking nut 26 screws onto the studs 23 and rests against the bottom of the lower fixing plate 21. A pressure head 24 is integrally connected to the bottom of the studs 23 and is used to compress the pressure plate 4.

[0042] The upper locking nut 25 and the lower locking nut 26 have two functions. One is to limit the stud 23 after the height is adjusted to prevent the stud 23 from falling out of the upper fixing plate 19 and the lower fixing plate 21; the other is to lock the upper fixing plate 19 and the lower fixing plate 21 on both sides of the flip plate 16 by selectively screwing the upper locking nut 25 and the lower locking nut 26, and prevent the upper fixing plate 19 and the lower fixing plate 21 from moving along the length direction of the flip plate 16 when the pressure plate 4 is pressed.

[0043] During actual testing, the position of the pressing point on the pressure plate 4 can be changed by moving the upper and lower fixing plates 19 and 21 along the length of the flip plate 16. Adjusting the height of the studs 23 allows for adaptability to pressure plates 4 of varying thicknesses. After adjustment, tighten the upper and lower locking nuts 25 and 26. The pressure between the pressure head 24 and the pressure plate 4 is rigid, while the pressure between the pressure block 11 and the liquid cooling plate is elastic.

[0044] When testing the auxiliary fixture for liquid cooling plate detection of the utility model, the liquid cooling plate is placed in the contoured groove 2 of the fixture plate 1, and the pressure plate 4 is rigidly pressed against the top of the fixture plate 1 by the external pressing component. Finally, the liquid cooling plate is elastically pressed into the contoured groove 2 by the internal pressing component on the pressing plate 4. The liquid cooling plate can be tested without damaging the surface of the liquid cooling plate, and the efficiency of the test and the accuracy of the test results are also improved.

[0045] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. An auxiliary fixture for liquid cooling plate detection, characterized in that it include: Jig board(1); A profiling groove (2), wherein the profiling groove (2) is provided on the top of the jig plate (1); Pressing plate (4); An external pressing assembly, which is fixed on the top of the jig plate (1) and presses the pressing plate (4) above the contoured groove (2); An internal pressing assembly is arranged in a height-adjustable manner in the pressing plate (4) and is used for pressing the liquid cooling plate in the contoured groove (2).

2. The auxiliary fixture for liquid cooling plate detection according to claim 1, characterized in that: The external pressing assembly comprises a base (15) fixed on the top of the jig plate (1), a flip plate (16) and a connecting plate (18) rotatably mounted on the top of the base (15), a pressing handle (17) rotatably connected to the flip plate (16) and the connecting plate (18), and a pressing mechanism adjustably arranged on the flip plate (16).

3. The auxiliary fixture for liquid cooling plate detection according to claim 2, characterized in that: The pressing mechanism comprises an upper fixing plate (19) adjustably arranged on the top of the flip plate (16), a lower fixing plate (21) adjustably arranged on the bottom of the flip plate (16), a stud (23) passing through the upper fixing plate (19) and the lower fixing plate (21), and a pressing head (24) integrally connected to the bottom of the stud (23).

4. The auxiliary fixture for liquid cooling plate detection according to claim 3, characterized in that: The pressing mechanism further includes an upper folding piece (20) integrally connected to both sides of the upper fixing piece (19) and bent downward, a lower folding piece (22) integrally connected to both sides of the lower fixing piece (21) and bent upward, and an upper locking nut (25) and a lower locking nut (26) screwed on the stud (23), wherein the upper locking nut (25) abuts against the top of the upper fixing piece (19) and the lower locking nut (26) abuts against the bottom of the lower fixing piece (21).

5. The auxiliary fixture for liquid cooling plate detection according to claim 1, characterized in that: The internal pressing assembly comprises a screw rod (9) which passes through the pressing plate (4) in an adjustable height and a pressing block (11) which is fixed at the bottom of the screw rod (9).

6. The auxiliary fixture for liquid cooling plate detection according to claim 5, characterized in that: The internal pressing assembly further comprises a first limiting nut (12) and a second limiting nut (13) screwed on the screw rod (9), wherein the first limiting nut (12) abuts against the top of the pressing plate (4).

7. The auxiliary fixture for liquid cooling plate detection according to claim 1, characterized in that: It also includes a positioning column (3) fixed on the top of the jig plate (1), a positioning hole (5) passing through the pressing plate (4) and cooperating with the positioning column (3), an avoidance groove (7) provided at the bottom of the pressing plate (4), and a detection groove (8) vertically passing through the pressing plate (4).

8. The auxiliary fixture for liquid cooling plate detection according to claim 5, characterized in that: The material of the pressing block (11) is rubber.

Images