A vacuum brazing water-cooled plate sealing testing device

Abstract

This utility model discloses a vacuum brazed water-cooled plate sealing testing device, comprising: a base; a support frame disposed on the base; a movable plate; the movable plate being vertically and vertically mounted on the support frame; two sets of translation components; the two sets of translation components being symmetrically disposed on the movable plate; a first clamping plate; the first clamping plate being connected to one set of translation components; a second clamping plate; the second clamping plate being connected to another set of translation components; and multiple sets of air inlet pipes; the multiple sets of air inlet pipes being evenly disposed on the first clamping plate. The beneficial effects of this utility model are: based on the displacement of the first clamping plate and the second clamping plate towards the water-cooled plate by the two sets of translation components for clamping and positioning, and alignment of the water inlet of the water-cooled plate with the air inlet pipe, stable clamping and precise alignment of the vacuum brazed water-cooled plate can be achieved, avoiding displacement of the water-cooled plate during the testing process, and ensuring accurate docking of the air inlet pipe with the water inlet of the water-cooled plate.

Description

Technical Field

[0001] This utility model relates to a vacuum brazing water-cooled plate sealing detection device. Background Technology

[0002] Vacuum brazed water-cooled plates, with their integrated flow channel structure and excellent heat transfer efficiency, have become core heat dissipation components for high heat flux density equipment such as power batteries for new energy vehicles, photovoltaic inverters, and high-power IGBT modules. Their internal sealing performance directly determines the operational reliability of the heat dissipation system. If defects such as micro-seams (typically <0.1mm in width) or pinholes (<0.05mm in diameter) exist at the brazing joints of the water-cooled plate, the cooling medium (such as water or antifreeze) will leak. This can lead to not only equipment heat dissipation failure and abnormally high operating temperatures, but also potential safety accidents such as short circuits and component burnout. Therefore, airtightness testing before shipment is a critical quality control step in the production process of vacuum brazed water-cooled plates.

[0003] However, existing vacuum brazed water-cooled plate sealing testing devices mostly use manual tightening clamps or fixed clamping structures of a single specification in practical applications, which cannot flexibly adapt to water-cooled plates of different sizes. During the clamping process, uneven force can easily cause the water-cooled plate to shift laterally or tilt at an angle, making it impossible for the air inlet pipe to be accurately connected to the water inlet of the water-cooled plate, which will affect the testing efficiency. In view of this, this utility model proposes a vacuum brazed water-cooled plate sealing testing device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum brazing water-cooled plate sealing detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vacuum brazing water-cooled plate sealing testing device, comprising:

[0007] Base; a support frame is provided on the base;

[0008] Movable plate; the movable plate is mounted on a support frame for vertical movement.

[0009] Two sets of translation components; the two sets of translation components are symmetrically arranged on the movable plate;

[0010] First clamping plate; the first clamping plate is connected to a set of translation components;

[0011] A second clamping plate; the second clamping plate is connected to another set of translation components;

[0012] Multiple sets of air intake pipes; the multiple sets of air intake pipes are evenly arranged on the first clamping plate;

[0013] Among them, the two sets of translation components drive the first clamping plate and the second clamping plate to move towards the water-cooled plate for clamping and positioning;

[0014] The air intake pipe is aligned with the water inlet of the water-cooled plate, and gas is injected into the water-cooled plate for airtightness testing.

[0015] As an improvement to the above technical solution, a detection chamber is provided around the base, and a detection water source is provided in the detection chamber;

[0016] The movable plate descends, bringing the clamped and positioned water-cooled plate into the testing chamber for airtightness testing.

[0017] As an improvement to the above technical solution, a lifting cylinder is provided on the support frame, the lifting cylinder is provided with a lifting piston rod, and the lifting piston rod is connected to the movable plate;

[0018] The movable plate is provided with two sets of guide plates, and the support frame is provided with guide grooves. The two sets of guide plates are respectively in contact with the two side walls of the guide grooves.

[0019] As an improvement to the above technical solution, the translation component includes a translation guide rail, which is connected to a movable plate. A slider with sliding engagement is provided on the translation guide rail, and a clamping arm is provided on the slider.

[0020] The two sets of clamping arms are respectively connected to the first clamping plate and the second clamping plate.

[0021] As an improvement to the above technical solution, the translation component further includes a translation cylinder, which is connected to the movable plate;

[0022] The translation cylinder is equipped with a translation piston rod, and the translation piston rod is equipped with a connecting plate, which is connected to the slider.

[0023] As an improvement to the above technical solution, the movable plate is provided with a placement plate, and the placement plate is provided with multiple sets of C-shaped fixing plates, the multiple sets of C-shaped fixing plates being matched with the positions of multiple sets of air intake pipes respectively.

[0024] As an improvement to the above technical solution, a rubber plate is provided on the first clamping plate, and the rubber plate is arranged towards the C-shaped fixing plate.

[0025] The rubber sheet contacts the water outlet of the water-cooled plate, thus blocking and sealing the water outlet of the water-cooled plate.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] Based on the two sets of translation components driving the first clamping plate and the second clamping plate to move towards the water-cooled plate for clamping and positioning, and aligning the water inlet of the water-cooled plate with the air inlet pipe, stable clamping and precise alignment of the vacuum brazed water-cooled plate can be achieved, avoiding the water-cooled plate from shifting during the testing process, ensuring that the air inlet pipe can accurately connect with the water inlet of the water-cooled plate, eliminating the testing error caused by the alignment deviation, and providing reliable structural support for subsequent airtightness testing;

[0028] The system connects to an external air compressor via an intake pipe to introduce high-pressure gas into the water-cooled plate for sealing testing. By combining high-pressure gas introduction with water immersion testing of the water-cooled plate, a dual detection mechanism of pressure filling and visual observation is formed. This mechanism can quickly identify sealing defects such as micro-seams and pinholes at the brazing joints of the water-cooled plate, significantly improving the detection rate of sealing defects and ensuring the accuracy and reliability of airtightness test results. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram showing the positions of the first clamping plate and the second clamping plate of this utility model;

[0031] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0032] Figure 4 This is a schematic diagram of the structure of the first clamping plate of this utility model;

[0033] Figure 5 This is a structural schematic diagram of the first clamping plate of this utility model from another angle;

[0034] Figure 6 This is a schematic diagram of the support frame of this utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the movable plate of this utility model.

[0036] In the diagram: 10. Detection box; 20. Support frame; 21. Movable plate; 22. Lifting cylinder; 23. Lifting piston rod; 24. Guide groove; 25. Guide plate; 26. C-shaped fixing plate; 27. Placement plate; 30. First clamping plate; 31. Rubber plate; 40. Second clamping plate; 50. Base; 60. Translation assembly; 61. Translation guide rail; 62. Slider; 63. Clamping arm; 64. Translation piston rod; 65. Connecting plate; 66. Translation cylinder; 70. Air inlet pipe. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Example:

[0039] like Figure 1-7 As shown, this embodiment proposes a vacuum brazing water-cooled plate sealing detection device, comprising:

[0040] Base 50; a support frame 20 is provided on the base 50;

[0041] Movable plate 21; the movable plate 21 is mounted on the support frame 20 for vertical lifting.

[0042] Two sets of translation components 60; the two sets of translation components 60 are symmetrically arranged on the movable plate 21;

[0043] First clamping plate 30; the first clamping plate 30 is connected to a set of translation components 60;

[0044] Second clamping plate 40; the second clamping plate 40 is connected to another set of translation components 60;

[0045] Multiple sets of air intake pipes 70; the multiple sets of air intake pipes 70 are evenly arranged on the first clamping plate 30;

[0046] Among them, the two sets of translation components 60 drive the first clamping plate 30 and the second clamping plate 40 to move toward the water-cooling plate for clamping and positioning.

[0047] The air intake pipe 70 is aligned with the water inlet of the water-cooled plate, and gas is injected into the water-cooled plate for air tightness testing.

[0048] In this embodiment, when performing a sealing test on the water-cooled plate, the water-cooled plate is placed between the first clamping plate 30 and the second clamping plate 40, with the water inlet of the water-cooled plate aligned with the air inlet pipe 70, and the water outlet of the water-cooled plate is sealed. Then, the translation component 60 moves the first clamping plate 30 and the second clamping plate 40 to clamp and position the water-cooled plate. After that, the air inlet pipe 70 fills the water-cooled plate with gas, and the water-cooled plate is immersed in water for an airtightness test.

[0049] Of course, the intake pipe 70 is connected to an external air compressor to introduce high-pressure gas into the water-cooled plate for sealing testing;

[0050] Based on the two sets of translation components 60 driving the first clamping plate 30 and the second clamping plate 40 to move towards the water-cooled plate for clamping and positioning, and aligning the water inlet of the water-cooled plate with the air inlet pipe 70, stable clamping and precise alignment of the vacuum brazed water-cooled plate can be achieved, avoiding the water-cooled plate from shifting during the testing process, ensuring that the air inlet pipe 70 can accurately connect with the water inlet of the water-cooled plate, eliminating the testing error caused by the alignment deviation, and providing reliable structural support for subsequent airtightness testing;

[0051] The intake pipe 70 is connected to an external air compressor to introduce high-pressure gas into the water-cooled plate for sealing testing. By combining high-pressure gas introduction with water immersion testing of the water-cooled plate, a dual detection mechanism of pressure filling and visual observation is formed, which can quickly identify sealing defects such as micro-seams and pinholes at the brazing joints of the water-cooled plate, significantly improving the detection rate of sealing defects and ensuring the accuracy and reliability of airtightness test results.

[0052] Specifically, a detection box 10 is provided around the base 50, and a detection water source is provided in the detection box 10;

[0053] The movable plate 21 descends, bringing the clamped and positioned water-cooled plate into the testing chamber 10 for airtightness testing.

[0054] In this embodiment, the detection chamber 10, by containing the detection water source, constructs a liquid detection environment for the clamped and positioned water-cooled plate. When the movable plate 21 moves the water-cooled plate into the detection water source, if the water-cooled plate has sealing defects such as brazing gaps or micro-holes, the high-pressure gas introduced by the air inlet pipe 70 inside will escape through the defect and form bubbles that can be directly observed in the detection water source. This structure transforms the determination of sealing defects from "indirect pressure monitoring" to "direct visual observation". It can not only quickly identify micro-leakage, such as micro-cracks and pinhole defects, but also accurately locate the defect location by the position, number and size of the bubbles. It effectively solves the problem that it is difficult to identify defects due to small pressure changes in a liquid-free environment, and significantly improves the detection sensitivity and positioning accuracy of sealing defects.

[0055] Specifically, the support frame 20 is equipped with a lifting cylinder 22, the lifting cylinder 22 is equipped with a lifting piston rod 23, and the lifting piston rod 23 is connected to the movable plate 21;

[0056] The movable plate 21 is provided with two sets of guide plates 25, and the support frame 20 is provided with guide grooves 24. The two sets of guide plates 25 respectively contact the two side walls of the guide grooves 24.

[0057] In this embodiment, the lifting cylinder 22 on the support frame 20 is directly connected to the movable plate 21 through the lifting piston rod 23, which can provide linear and stable driving force and accurately control the lifting speed, stroke and start and stop timing of the movable plate 21, avoiding the problems of unstable lifting action and stroke deviation under manual or non-pneumatic drive. At the same time, when the movable plate 21 drives the water-cooled plate that has been clamped and positioned to lift and lower, it can ensure that the water-cooled plate can accurately and smoothly enter the detection water source of the detection box 10, preventing the water-cooled plate from colliding with the detection box 10 due to loss of control of the lifting action, and providing power guarantee for the accurate conduct of airtightness testing.

[0058] Specifically, the translation component 60 includes a translation guide rail 61, which is connected to the movable plate 21. A sliding block 62 is provided on the translation guide rail 61, and a clamping arm 63 is provided on the sliding block 62.

[0059] The two sets of clamping arms 63 are respectively connected to the first clamping plate 30 and the second clamping plate 40.

[0060] Specifically, the translation component 60 also includes a translation cylinder 66, which is connected to the movable plate 21;

[0061] The translation cylinder 66 is provided with a translation piston rod 64, and the translation piston rod 64 is provided with a connecting plate 65, which is connected to the slider 62.

[0062] In this embodiment, the sliding engagement structure between the translation guide rail 61 and the slider 62 in the translation component 60 provides a fixed linear motion trajectory for the slider 62 and the connected clamping arm 63, the first clamping plate 30, and the second clamping plate 40, effectively limiting the lateral displacement, swaying, or jamming of the slider 62 during the displacement process. At the same time, the translation cylinder 66 stably transmits the pneumatic driving force to the slider 62 through the translation piston rod 64 and the connecting plate 65, so that the driving force acts linearly along the extension direction of the translation guide rail 61, avoiding the displacement deviation of the clamping plate caused by nonlinear force. This design ensures that the first clamping plate 30 and the second clamping plate 40 always maintain stable movement when moving towards the water-cooled plate, preventing collision damage to the water-cooled plate or misalignment between the air intake pipe 70 and the water inlet of the water-cooled plate due to unstable displacement, laying the motion foundation for the accurate conduct of subsequent airtightness testing.

[0063] Specifically, the movable plate 21 is provided with a placement plate 27, and the placement plate 27 is provided with multiple sets of C-shaped fixing plates 26, which are respectively matched with multiple sets of air intake pipes 70.

[0064] In this embodiment, multiple sets of C-shaped fixing plates 26 are used to place multiple sets of water-cooled plates so that the multiple sets of water-cooled plates are aligned with the multiple sets of air intake pipes 70 respectively. At the same time, since the cross-section of the C-shaped fixing plate 26 is C-shaped, it is easy to perform preliminary positioning of the water-cooled plates so as to perform precise positioning processing later.

[0065] Specifically, a rubber plate 31 is provided on the first clamping plate 30, and the rubber plate 31 is positioned toward the C-shaped fixing plate 26;

[0066] The rubber plate 31 contacts the water outlet of the water-cooled plate, thereby blocking and sealing the water outlet of the water-cooled plate.

[0067] In this embodiment, when the water-cooled plate is clamped and positioned, the rubber plate 31 moves toward the water-cooled plate along with the first clamping plate 30 until the rubber plate 31 contacts the water inlet and outlet of the water-cooled plate, thereby completing the sealing treatment of the water inlet and outlet of the water-cooled plate. Since the water inlet of the water-cooled plate is aligned with the air inlet pipe 70, the detection gas is introduced into the water-cooled plate through the air inlet pipe 70 for air tightness detection.

[0068] Of course, different first clamping plates 30 can be replaced according to the setting of the water inlet of the water-cooled plate, so that the air intake pipe 70 can be aligned with the water inlet of the water-cooled plate.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum brazing water-cooling plate seal detection device, characterized by: include: Base (50); a support frame (20) is provided on the base (50); Movable plate (21); the movable plate (21) is mounted on the support frame (20) for vertical movement; Two sets of translation components (60); the two sets of translation components (60) are symmetrically arranged on the movable plate (21); First clamping plate (30); the first clamping plate (30) is connected to a set of translation components (60); The second clamping plate (40) is connected to another set of translation components (60); Multiple sets of air intake pipes (70); the multiple sets of air intake pipes (70) are evenly arranged on the first clamping plate (30); Among them, the two sets of translation components (60) drive the first clamping plate (30) and the second clamping plate (40) to move towards the water-cooled plate for clamping and positioning; The air intake pipe (70) is aligned with the water inlet of the water-cooled plate, and gas is injected into the water-cooled plate for air tightness testing.

2. The vacuum brazing water-cooling plate sealing detection device according to claim 1, characterized in that: The base (50) is surrounded by a detection box (10), and the detection box (10) contains a detection water source; The movable plate (21) descends and brings the clamped and positioned water-cooled plate into the test chamber (10) for airtightness testing.

3. The vacuum brazing water-cooling plate sealing detection device according to claim 1, characterized in that: The support frame (20) is provided with a lifting cylinder (22), the lifting cylinder (22) is provided with a lifting piston rod (23), and the lifting piston rod (23) is connected to the movable plate (21); The movable plate (21) is provided with two sets of guide plates (25), and the support frame (20) is provided with guide grooves (24). The two sets of guide plates (25) respectively contact the two side walls of the guide grooves (24).

4. The vacuum brazing water-cooling panel sealing detection device according to claim 1, characterized in that: The translation component (60) includes a translation guide rail (61), which is connected to the movable plate (21). A sliding block (62) is provided on the translation guide rail (61), and a clamping arm (63) is provided on the sliding block (62). The two sets of clamping arms (63) are respectively connected to the first clamping plate (30) and the second clamping plate (40).

5. The vacuum brazing water-cooling panel sealing detection device according to claim 4, characterized in that: The translation assembly (60) also includes a translation cylinder (66), which is connected to the movable plate (21); The translation cylinder (66) is provided with a translation piston rod (64), and the translation piston rod (64) is provided with a connecting plate (65), which is connected to the slider (62).

6. The vacuum brazing water-cooling panel sealing detection device according to claim 5, characterized in that: The movable plate (21) is provided with a placement plate (27), and the placement plate (27) is provided with multiple sets of C-shaped fixing plates (26), and the multiple sets of C-shaped fixing plates (26) are respectively matched with the positions of multiple sets of air intake pipes (70).

7. The vacuum brazing water-cooling panel sealing detection device according to claim 1, characterized in that: A rubber plate (31) is provided on the first clamping plate (30), and the rubber plate (31) is arranged in the direction of the C-shaped fixing plate (26); The rubber plate (31) contacts the water outlet of the water-cooled plate to block and seal the water outlet of the water-cooled plate.

Images