Water-cooled plate integrated helium detection device

Abstract

The utility model discloses water -cooled plate integration helium detection device relates to product helium detection technical field, including device main part, the helium filling subassembly of being integrated in device main part and be used for to water -cooled plate helium filling and the helium detection subassembly of being integrated in device main part and be used for to water -cooled plate detection, helium detection subassembly includes suction power source, suction gun and leak detector, and suction power source and suction gun are linked with the outlet and import of leak detector respectively and communicate, to when the suction power source starts, gas reaches suction power source in turn through suction gun and leak detector, the hose for connecting leak detector import and suction gun has the activity margin, to when the suction gun muzzle is in contact with water -cooled plate, and the muzzle can move along water -cooled plate weld seam track. The utility model discloses helium filling subassembly and helium detection subassembly are integrated in single device main part, and the equipment structure is simplified. And suction power source, suction gun and leak detector in helium detection subassembly form closed loop gas path, not only ensure detection accuracy, and this kind of detection mode can also avoid the addition of carrier.

Description

Technical Field

[0001] This utility model relates to the field of helium testing technology, specifically to an integrated helium testing device for water-cooled plates. Background Technology

[0002] A water-cooled plate is a passive thermal management device used for efficient heat dissipation. Its principle is to guide the flow of coolant through internal channels, directly absorbing and transferring the heat generated by electronic equipment. After the water-cooled plate is manufactured, it needs to undergo a sealing test, typically using helium leak detectors.

[0003] A search revealed a patent document with authorization announcement number CN218546054U, which discloses a vacuum helium testing device for a water-cooled plate in a vehicle battery pack. This helium testing device includes a vacuum shroud, a suction pipe, a carrier, sealing joints corresponding to the inlet and outlet of the water-cooled plate, a push assembly that pushes the sealing joints to engage with the inlet and outlet of the water-cooled plate, and an airtightness testing tube and a barcode scanning assembly connected to an external airtightness tester. The carrier has positioning blocks for each edge of the bottom surface of the water-cooled plate to be tested. After the vacuum shroud is pressed down and closed with the carrier, a push rod pushes against the push blocks. The inlet and outlet sealing joints are horizontally fixed to the push base. The airtightness testing tube is fixed to the lower end face of the carrier and communicates with the internal space of the vacuum chamber to perform airtightness testing.

[0004] The aforementioned method for testing water-cooled plates involves first setting up a carrier to support the plate, then placing a sealable vacuum chamber on top of the carrier to create a vacuum environment. The water-cooled plate is then placed in this vacuum environment, and helium gas is injected into the water inlet of the plate and pressurized appropriately. The pressure inside the vacuum chamber is then measured to determine its airtightness. However, this method requires a carrier, increasing testing costs and limiting the types of water-cooled plates that can be used. Furthermore, it necessitates adding a vacuum chamber of compatible size to create the vacuum environment, increasing equipment costs and increasing the overall size of the equipment by occupying a significant amount of space.

[0005] To address these issues, we propose an integrated helium detection device using a water-cooled plate. Utility Model Content

[0006] The purpose of this utility model is to solve the problems in the prior art by proposing an integrated helium detection device for water-cooled plates. By integrating the helium filling component and the helium detection component into a single device body, a high degree of integration and operational flexibility is achieved. At the same time, the use of a suction gun with a movable margin to perform mobile detection of the weld seam of the water-cooled plate not only avoids the need for additional carriers, but also improves the convenience of the detection process.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] An integrated helium detection device for water-cooled plates includes a main body, a helium filling component integrated on the main body for filling the water-cooled plates with helium, and a helium detection component integrated on the main body for detecting the water-cooled plates. The helium detection component includes a suction power source, a suction gun, and a leak detector. The suction power source and the suction gun are respectively connected to the outlet and inlet of the leak detector, so that when the suction power source is started, gas passes through the suction gun and the leak detector sequentially to reach the suction power source. The hose used to connect the inlet of the leak detector and the suction gun has a flexible allowance so that when the nozzle of the suction gun touches the water-cooled plate, the nozzle can move along the weld seam trajectory of the water-cooled plate.

[0009] As a further embodiment of this utility model, the helium detection device also includes an industrial control computer integrated on the main body of the device and electrically connected to the leak detector, and a display screen located on the suction gun body, the display screen being electrically connected to the industrial control computer.

[0010] As a further embodiment of this invention, a light is provided on the body of the suction gun.

[0011] As a further embodiment of this utility model: a rubber tube is connected to the muzzle of the suction gun, and an arc-shaped end with an inner cavity is connected to the end of the rubber tube.

[0012] As a further embodiment of this invention, the helium detection device also includes a display integrated on the main body of the device and electrically connected to the industrial control computer.

[0013] As a further embodiment of this utility model: the suction power source is a vacuum pump unit integrated on the main body of the device.

[0014] As a further embodiment of this utility model: the helium filling component includes a connecting pipe integrated on the main body of the device, the connecting pipe having a switchable suction function and a helium filling function, and the two functions can be used selectively.

[0015] As a further embodiment of this utility model: the main body of the device is provided with a coaxial valve group connected to the connecting pipe, and the coaxial valve group is electrically connected to the industrial control computer. The coaxial valve group has an air extraction valve and a helium filling valve to realize the opening and closing of the suction function and the opening and closing of the helium filling function, respectively.

[0016] As a further embodiment of this invention, the coaxial valve assembly also includes a helium discharge valve and a balancing valve.

[0017] As a further embodiment of this utility model: the main body of the device is provided with a touch screen, a helium detector screen and a keyboard and mouse set that are electrically connected to the industrial control electromechanical system.

[0018] As a further embodiment of this utility model: the main body of the device is equipped with a barcode scanner for scanning barcodes or QR codes on the water-cooled plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This application simplifies the equipment structure and reduces space occupation by integrating the helium filling component and the helium detection component into a single main body. Furthermore, the suction power source, suction gun, and leak detector in the helium detection component form a closed-loop gas path, ensuring detection accuracy. This detection method also eliminates the need for additional carriers, reducing equipment costs. Simultaneously, the flexible hose design allows for ample movement, enabling the suction gun nozzle to move flexibly along the weld seam trajectory, achieving continuous scanning while maintaining tight contact between the nozzle and the water-cooling plate, thus improving detection efficiency and coverage integrity.

[0021] 2. The suction gun body integrates a display screen, allowing the operator to read the detection data in real time without taking their eyes off the screen, greatly improving the ease of operation.

[0022] 3. The addition of lighting optimizes the adaptability of the inspection environment. In situations where there is insufficient light or the weld is hidden, the gun body lighting can directly illuminate the inspection area, avoiding interference or shadows caused by external light sources, ensuring that the staff can clearly observe the weld condition and reducing the risk of missed inspections.

[0023] 4. The connecting tube has dual functions of suction / helium filling. By reusing a single tube, the complexity of traditional two separate systems is eliminated, simplifying the structure and reducing costs. The functional isolation design (selective use) avoids cross-contamination, ensures helium purity and detection accuracy, and makes the operation process more efficient.

[0024] 5. The introduction of intelligent control of coaxial valve group realizes the functional automation upgrade. The opening and closing of the evacuation valve and helium charging valve are precisely controlled by the industrial control computer, which improves the intelligence of the entire helium detection device.

[0025] 6. The helium release valve and the balancing valve enhance the safety and stability of the system. The helium release valve can safely release helium gas from the inner cavity of the water-cooled plate; the balancing valve is used to regulate the system pressure balance, prevent sudden pressure changes from affecting the detection accuracy, and ensure equipment and operational safety.

[0026] 7. The combination of touch screen, helium detector screen and keyboard and mouse set creates a diversified human-computer interaction terminal. The touch screen simplifies parameter settings, the helium detector screen focuses on real-time data, and the keyboard and mouse support fast input. The three complement each other to meet different operating habits and greatly improve debugging efficiency and operating comfort.

[0027] 8. By scanning the water-cooled plate's identification mark (barcode / QR code), the system automatically associates test data with product information, ensuring the uniqueness of data traceability; eliminating errors from manual recording and improving the efficiency of quality control. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings.

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

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the suction gun in this utility model. Figure 1 ;

[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 ;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 3 ;

[0033] Figure 5 This is a schematic diagram showing the connection relationship of the various components of this utility model;

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the suction gun in this utility model. Figure 2 .

[0035] In the diagram: 1. Main body of the device; 2. Suction power source; 3. Suction gun; 4. Leak detector; 5. Industrial computer; 6. Display screen; 7. Lighting lamp; 8. Monitor; 9. Connecting pipe; 10. Touch screen; 11. Helium detector screen; 12. Keyboard and mouse set; 13. Barcode scanner; 14. Power switch; 15. Emergency stop switch; 16. Coaxial valve assembly; 17. Helium charging valve; 18. Pressure sensor; 19. Vacuum pump; 20. Vacuum valve; 21. Helium discharge valve; 22. Balance valve; a. Water cooling plate; 23. Rubber hose; 24. Arc-shaped end. Detailed Implementation

[0036] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figure 1 As shown, the water-cooled plate integrated helium detection device includes a device body 1 for accommodating various components. Four horizontally arranged partitions are arranged sequentially from top to bottom on the device body 1 to form three sets of storage areas arranged from top to bottom. The three sets of storage areas can be defined sequentially from top to bottom as: upper storage area, middle storage area and lower storage area.

[0038] Furthermore, such as Figure 3 and Figure 4 As shown, the main body 1 of the device is surrounded by baffles to cover the three storage areas. At the same time, the baffles at one point can be replaced with cabinet doors to open and close the storage areas.

[0039] A helium-filling assembly is installed in the central storage area. This assembly is used to fill the water-cooled plate with helium. In use, larger water-cooled plates can be pre-placed on a trolley and moved to the side of the main body 1 of the device. The helium-filling assembly is then connected to the inlet or outlet of the water-cooled plate. Conversely, any unconnected inlet or outlet needs to be sealed with a plug to ensure a sealed interior for the water-cooled plate. The helium-filling assembly is then used to fill the water-cooled plate with helium until a certain pressure is achieved within the plate's interior, and this pressure is maintained.

[0040] like Figure 5 As shown, specifically, the helium filling assembly includes a connecting pipe 9 integrated into the baffle of the central storage area. This connecting pipe 9 is connected to a coaxial valve assembly 16, which is located within the central storage area. The coaxial valve assembly 16 is connected to a helium cylinder with a pressure-reducing valve at its opening, and the opening and closing of the helium cylinder is controlled by a helium filling valve 17. When helium filling of the water-cooled plate is required, the helium filling valve 17 is opened, allowing helium to enter the inner cavity of the water-cooled plate, thus achieving helium filling. Simultaneously, the coaxial valve assembly 16 is connected to a pressure sensor 18, which can detect the helium pressure within the inner cavity of the water-cooled plate.

[0041] In the aforementioned helium filling operation, directly filling the inner cavity of the water-cooled plate with helium without performing a simple preliminary inspection not only wastes helium resources but also reduces detection efficiency. Therefore, this application also provides a suction function for the connecting pipe 9. This suction function and the helium filling function do not interfere with each other, and the two can be freely switched. Specifically, a vacuum pump 19 is connected to the coaxial valve assembly 16. The vacuum pump 19 is integrated into the lower storage area, and the vacuum pump 19 and the coaxial valve assembly 16 are opened and closed via a vacuum valve 20.

[0042] After connecting the connecting pipe 9 to the inlet or outlet of the water-cooled plate, the outlet or inlet of the water-cooled plate is sealed with a plug. The vacuum pump 19 is turned on, the vacuum valve 20 is turned on, and the helium charging valve 17 is turned off. At this time, the vacuum pump 19 can perform suction treatment on the inner cavity of the water-cooled plate. During this suction treatment, the time required to evacuate the inner cavity of the water-cooled plate to the specified vacuum degree can be calculated by knowing the type and size of the water-cooled plate and the parameters of the vacuum pump 19 in advance. Therefore, during the suction treatment, the inner cavity of the water-cooled plate is observed to see if the required vacuum degree is reached within the predetermined time. If it is reached, it means that the water-cooled plate has passed the initial inspection and can proceed with the subsequent helium charging operation. The vacuum pump 19 is turned off, the vacuum valve 20 is turned off, and the helium charging valve 17 is turned on. At this time, the helium charging valve 17 can deliver helium gas from the helium cylinder to the inner cavity of the water-cooled plate. If this cannot be achieved, it indicates that the initial inspection of the water-cooled plate is unqualified and there is a leak in the water-cooled plate. During the suction process, outside air will enter the inner cavity of the water-cooled plate through the leak. Then, the water-cooled plate can be directly removed from the connecting pipe 9 without subsequent helium filling.

[0043] like Figure 1 and Figure 3 As shown, the main body 1 of the device is also equipped with a helium detection assembly, which includes a suction power source 2, a suction gun 3, and a leak detector 4. The suction power source 2 is integrated in the lower placement area, the suction gun 3 is hung on the side of the main body 1, and the leak detector 4 is integrated in the middle placement area. The suction power source 2 and the suction gun 3 are respectively connected to the outlet and inlet of the leak detector 4. The suction power source 2 can be set as a vacuum pump group or other conventional technologies.

[0044] When the suction power source 2 is activated, the air around the nozzle of the suction gun 3 is drawn into the suction gun 3 and then into the leak detector 4, ultimately reaching the suction power source 2. After the water-cooled plate is helium-charged, the nozzle of the suction gun 3 can be placed against the location on the water-cooled plate to be tested. The suction action of the nozzle delivers the air from that location to the leak detector 4. The leak detector 4 can detect whether the air contains helium, thus ultimately determining whether there is a leak in the water-cooled plate.

[0045] To improve the convenience of testing, the hose (not shown in the figure) used to connect the inlet of the leak detector 4 and the suction gun 3 is set to be long enough with a large margin of movement, so that the suction gun 3 has a large radius of movement and can move along the weld line of the water-cooled plate for testing.

[0046] like Figure 2 As shown, to provide immediate feedback on the leak location during the movement of the suction gun 3, a display screen 6 is installed on the gun body. Correspondingly, an industrial control computer 5 is integrated in the upper storage area. The industrial control computer 5 is electrically connected to the display screen 6 and the leak detector 4. Therefore, during the inspection process, the operator can use the display screen 6 to continuously monitor the sealing status of the corresponding weld seam of the water-cooled plate. Alternatively, a display 8 can be installed on the baffle of the middle storage area. The display 8 is electrically connected to the industrial control computer 5. Touch screens 10, helium detector screens 11, and keyboard and mouse sets 12, all electrically connected to the industrial control computer 5, are also installed on the baffles of the middle and upper storage areas. The sealing status of the corresponding weld seam of the water-cooled plate can also be fed back using the display 8, touch screen 10, and helium detector screen 11. Meanwhile, in order to adapt to the testing of water-cooled plates in different environments, a light 7 can be installed on the body of the suction gun 3. The light 7 can not only illuminate the movement path of the suction gun 3, but also allow for close and careful observation of the leak locations.

[0047] like Figure 6 As shown, in order to ensure stable and smooth contact during the movement of the suction gun 3 on the water-cooled plate, this application improves the structure of the suction gun 3. Specifically, a rubber tube 23 is connected to the nozzle of the suction gun 3, and an arc-shaped end 24 is connected to the end of the rubber tube 23. The arc-shaped end 24 has an inner cavity. During use, the arc-shaped end 24 can be used to contact the water-cooled plate. The presence of the rubber tube 23 not only allows the suction gun 3 to undergo a certain angular displacement, which is convenient for different operators and adapts to different operating techniques, but also ensures that the arc-shaped end 24 is always in a stable contact state with the water-cooled plate. Even if the gun body deflects or swings, the arc-shaped end 24 is always in a good contact state.

[0048] For example Figure 5As shown, to facilitate the venting of helium from the water-cooled plate's internal cavity after testing, the coaxial valve assembly 16 is also connected to a helium discharge valve 21. After testing, the evacuation valve 20, evacuation pump 19, and helium charging valve 17 are closed, while the helium discharge valve 21 is opened, allowing the helium inside the water-cooled plate to be discharged through the helium discharge valve 21. After helium venting, the helium discharge valve 21 is closed, the evacuation valve 20 is opened, and the evacuation pump 19 pumps the water-cooled plate's internal cavity to remove any remaining helium. Correspondingly, the coaxial valve assembly 16 is also connected to a balancing valve 22. After the evacuation pump 19 has evacuated all the helium from the water-cooled plate's internal cavity, the evacuation valve 20 is closed, and the balancing valve 22 is opened, allowing the water-cooled plate's interior to communicate with the outside atmosphere. After balancing, the balancing valve 22 is closed. At the end of the test, the connection between the water-cooled plate and the connecting pipe 9 is disconnected, and the test results are recorded on the industrial control computer 5, or uploaded to the equipment's MES system for storage. Figure 5 In this context, 'a' represents the water-cooled plate.

[0049] Correspondingly, the logic control of the aforementioned components, such as the coaxial valve assembly 16, pressure sensor 18, helium charging valve 17, evacuation valve 20, evacuation pump 19, and vacuum pump assembly, can be achieved through direct electrical connection with the industrial control computer 5, or it can be implemented by an external controller. This implementation method is a conventional design in the prior art, and will not be elaborated upon here to avoid unnecessary complexity.

[0050] In order to enable the testing and marking of different water-cooled plate products, this application provides a barcode scanner 13 on the main body 1 of the device for scanning barcodes or QR codes on the water-cooled plates.

[0051] like Figure 3 As shown, the main body 1 of the device is also equipped with a power switch 14 and an emergency stop switch 15.

[0052] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A water-cooled plate integrated helium detection device, characterized in that, The device includes a main body (1), a helium filling component integrated on the main body (1) for filling the water-cooled plate with helium, and a helium detection component integrated on the main body (1) for detecting the water-cooled plate. The helium detection component includes a suction power source (2), a suction gun (3), and a leak detector (4). The suction power source (2) and the suction gun (3) are respectively connected to the outlet and inlet of the leak detector (4) so ​​that when the suction power source (2) is started, the gas passes through the suction gun (3) and the leak detector (4) in sequence to reach the suction power source (2). The hose used to connect the inlet of the leak detector (4) and the suction gun (3) has a movable margin so that when the nozzle of the suction gun (3) touches the water-cooled plate, the nozzle can move along the weld seam trajectory of the water-cooled plate.

2. The integrated helium detector with water-cooled plate according to claim 1, characterized in that, The helium detection device also includes an industrial control computer (5) integrated on the main body (1) and electrically connected to the leak detector (4) and a display screen (6) located on the body of the suction gun (3), the display screen (6) being electrically connected to the industrial control computer (5).

3. The integrated helium detector with water-cooled plate according to claim 1 or 2, characterized in that, The suction gun (3) is equipped with a light (7) on its gun body.

4. The integrated helium detection device with water-cooled plate according to claim 3, characterized in that, The suction gun (3) has a rubber tube (23) connected to its muzzle, and the end of the rubber tube (23) is connected to an arc-shaped end (24) with an inner cavity.

5. The integrated helium detector with water-cooled plate according to claim 2, characterized in that, The helium detection device also includes a display (8) integrated on the main body (1) and electrically connected to the industrial control computer (5).

6. The integrated helium detector with water-cooled plate according to claim 1, characterized in that, The suction power source (2) is a vacuum pump unit integrated on the main body (1) of the device.

7. The integrated helium detector with water-cooled plate according to claim 2, characterized in that, The helium filling component includes a connecting pipe (9) integrated on the main body (1) of the device. The connecting pipe (9) has a suction function and a helium filling function that can be switched between each other, and the two functions can be used selectively.

8. The integrated helium detector with water-cooled plate according to claim 7, characterized in that, The main body (1) of the device is provided with a coaxial valve group (16) connected to the connecting pipe (9), and the coaxial valve group (16) is electrically connected to the industrial control computer (5). The coaxial valve group (16) has an air extraction valve (20) and a helium filling valve (17) to realize the opening and closing of the suction function and the opening and closing of the helium filling function, respectively.

9. The integrated helium detection device for water-cooled plates according to claim 8, characterized in that, The coaxial valve assembly (16) also includes a helium discharge valve (21) and a balancing valve (22).

10. The integrated helium detector with water-cooled plate according to claim 2, characterized in that, The main body (1) of the device is equipped with a touch screen (10), a helium detector screen (11), and a keyboard and mouse set (12) that are electrically connected to the industrial control computer (5).

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