An airtight detection device for an ultra-thin new energy liquid cooling plate

Abstract

This invention provides an airtightness testing device for ultra-thin liquid-cooled plates used in new energy vehicles, relating to the field of core component testing technology for new energy vehicles. It solves the technical problem of low efficiency in existing semi-automatic operation methods. The device includes a support unit, a lifting mechanism, a translation mechanism, a mounting unit, and a sealing mechanism. The support unit holds the product to be tested; the support unit is mounted on the lifting end of the lifting mechanism; the lifting mechanism is mounted on the driving end of the translation mechanism, which drives the support unit to reciprocate between the loading / unloading station and the testing station; the mounting unit is positioned above the testing station; and the sealing mechanism is mounted on the mounting unit, sealing any pores on the product to be tested. This invention enables automated sealing of the product to be tested, thereby improving testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of core component testing technology for new energy vehicles, and in particular to an airtightness testing device for an ultra-thin new energy liquid cooling plate. Background Technology

[0002] With the development trend of new energy vehicles pursuing high range, high power, and fast charging capabilities, the sealing performance of the liquid cooling plate, as a key heat dissipation component, directly determines whether the coolant leaks. Once a seal fails, it not only leads to a sharp drop in heat dissipation efficiency and causes uncontrolled temperature rise in the power battery, but may also cause short circuits, seriously threatening the safety of the entire vehicle. Therefore, efficient and accurate automatic sealing detection technology for liquid cooling plates has become a core technological requirement in the new energy vehicle industry chain to ensure product quality and improve production efficiency. Currently, the technical means used in the field of new energy liquid cooling plate sealing detection are still semi-automatic sealing, mainly relying on manual operation to complete the detection process. This is not only inefficient, but the detection accuracy is also easily affected by factors such as the operator's skill level and fatigue, making it difficult to meet the production needs of large-scale, high-precision testing.

[0003] Secondly, during the airtightness testing process, there is also the problem of product deformation, resulting in a high damage rate. Summary of the Invention

[0004] The purpose of this invention is to provide an airtightness testing device for ultra-thin new energy liquid-cooled plates, solving the technical problem of low efficiency in the semi-automatic operation mode of the prior art. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides an airtightness testing device for an ultra-thin new energy liquid-cooled plate, comprising: The support section is used to place the product to be tested; A lifting mechanism, wherein the supporting part is provided on the lifting end of the lifting mechanism; A translation mechanism, wherein the lifting mechanism is provided on the drive end of the translation mechanism, and the translation mechanism can drive the bearing part to reciprocate between the loading / unloading station and the inspection station; The mounting part is disposed above the workstation to be tested; A sealing mechanism is provided on the mounting part, and the sealing mechanism is capable of sealing the pores on the product to be tested; The supporting part is a box body, and the mounting part is a box cover. The box body and the box cover can be closed to form a space to accommodate the product to be tested. The product to be tested is in contact with the inner wall of the space. The sealing mechanism includes a second driving part, a second mounting plate, a pressing guide post, and a sealing guide post. The second driving part is disposed on the second mounting plate, and the second mounting plate is disposed on the mounting part. The pressing guide post is disposed on the driving end of the second driving part. The second driving part can drive the pressing guide post to press against the sealing guide post. The sealing guide post is slidably disposed on the second mounting plate.

[0007] Preferably, the lifting mechanism includes a first drive unit, a first mounting plate, a positioning plate, and a synchronous shaft; the first drive unit is disposed on the first mounting plate, the positioning plate is disposed parallel to the first mounting plate, the drive end of the first drive unit is connected to the positioning plate, the synchronous shaft is disposed between the first mounting plate and the positioning plate, and the bearing unit is disposed on the positioning plate.

[0008] Preferably, the number of synchronous shafts is four and they are located at the four corners of the first mounting plate.

[0009] Preferably, the translation mechanism includes a timing belt module and a guide rail assembly. The timing belt module is mounted on the mounting base and connected to the lifting mechanism via a floating connector. The guide rail assembly is disposed between the lifting mechanism and the mounting base.

[0010] Preferably, the floating connector includes a connecting block disposed on the synchronous belt module, and the lifting mechanism is provided with a sliding groove in the same direction as the lifting direction of the lifting mechanism, and a portion of the connecting block is slidably disposed within the sliding groove.

[0011] Preferably, the limit sensor is provided on the opposite side of both the loading / unloading station and the station to be tested.

[0012] Preferably, the sealing mechanism further includes a guide post bushing and a sealing gasket. The second mounting plate is provided with a mounting hole, the sealing gasket is disposed in the mounting hole, the sealing guide post is disposed in the guide post bushing, the guide post bushing is disposed on the second mounting plate, and the sealing guide post abuts against the sealing gasket.

[0013] Preferably, the sealing mechanism further includes an anti-rotation block and an anti-rotation plunger. The anti-rotation block is disposed on the second mounting plate. There are two anti-rotation blocks, which are symmetrically disposed on both sides of the guide post bushing. The anti-rotation plunger is disposed on the anti-rotation block and can abut against the guide post bushing.

[0014] The application employs the above technical solution and has at least the following beneficial effects: The automatic positioning and movement of the product to be tested is achieved through the coordinated action of the lifting and translation mechanisms. Reliable sealing is accomplished by the cooperation of the installation and sealing mechanisms, thereby avoiding accuracy fluctuations caused by manual operation. This technology automates the airtightness testing of liquid-cooled plates, improving testing efficiency and accuracy.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of the airtightness testing device for the ultra-thin new energy liquid cooling plate provided in an embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the airtightness testing device for ultra-thin new energy liquid cooling plates provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the lifting mechanism structure provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the sealing mechanism structure provided in an embodiment of the present invention; Figure 5 This is a cross-sectional structural diagram of the sealing mechanism provided in an embodiment of the present invention.

[0018] In the diagram: 1. Bearing unit; 2. Lifting mechanism; 3. Translation mechanism; 4. Mounting unit; 5. Sealing mechanism; 6. First drive unit; 7. First mounting plate; 8. Positioning plate; 9. Synchronous shaft; 10. Synchronous belt module; 11. Guide rail assembly; 12. Mounting base; 13. Floating connector; 14. Limit sensor; 15. Second drive unit; 16. Second mounting plate; 17. Pressing guide post; 18. Sealing guide post; 19. Guide post bushing; 20. Sealing gasket; 21. Mounting hole; 22. Anti-rotation block; 23. Anti-rotation plunger. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] A specific embodiment of the present invention provides an airtightness testing device for an ultra-thin new energy liquid cooling plate, which mainly includes a bearing part 1, a lifting mechanism 2, a translation mechanism 3, a mounting part 4, and a sealing mechanism 5; The support section 1 is used to place the product to be tested; A load-bearing part 1 is provided on the lifting end of the lifting mechanism 2; A lifting mechanism 2 is provided on the drive end of the translation mechanism 3. The translation mechanism 3 can drive the bearing part 1 to move back and forth between the loading / unloading station and the inspection station. Installation unit 4 is positioned above the workstation to be inspected; The sealing mechanism 5 is installed on the mounting part 4, and the sealing mechanism 5 can seal the pores on the product to be tested.

[0021] The supporting unit 1 provides a stable support platform for the product under test, ensuring its position remains fixed during testing. Furthermore, the supporting unit 1 is mounted on the lifting end of the lifting mechanism 2, allowing it to precisely adjust its height according to the vertical movement of the lifting mechanism 2, achieving accurate positioning of the product at the testing location. The lifting mechanism 2 is mounted on the drive end of the translation mechanism 3, enabling it to drive the lifting mechanism 2 horizontally according to commands from the drive end, thereby causing the supporting unit 1 to automatically reciprocate between the loading / unloading station and the testing station. In a preferred embodiment, the mounting unit 4 is fixed above the testing station, providing a stable vertical mounting reference for the sealing mechanism 5. The sealing mechanism 5 is mounted on the mounting unit 4, allowing it to precisely align with the pores on the product under test based on the position of the mounting unit 4, achieving reliable sealing with controllable and adjustable force during the sealing process. This airtightness testing device for ultra-thin new energy liquid-cooled plates integrates the supporting unit 1, lifting mechanism 2, translation mechanism 3, mounting unit 4, and sealing mechanism 5 to achieve an automated airtightness testing process, thereby improving testing efficiency.

[0022] Specifically, in some embodiments of this application, a structure is proposed in which the supporting part 1 is designed as a box and the mounting part 4 is designed as a box cover to fix the product to be tested. The box and the box cover can be closed to form a space to accommodate the product to be tested, and the product to be tested is in contact with the inner wall of the space. The support section 1 refers to the supporting structure used to place the product to be tested. It can be implemented using a box structure made of metal or plastic. This box structure has a bottom and side walls, and its purpose is to provide rigid support for the product to be tested, distribute the dynamic load applied by the lifting mechanism 2 and the translation mechanism 3, and prevent the product from deforming due to increased internal pressure during the testing process. The mounting section 4 can be understood as a covering structure set above the testing station. It can be implemented using an openable and closable box cover, and its purpose is to form a complete upper cover when closed with the support section 1. In practical applications, the accommodating space formed by the closure of the box and the box cover is specifically a sealed chamber that matches the contour of the product to be tested. For example, it can be designed with a shape that precisely matches the shape of the product. Its purpose is to reduce the gap between the product and the space, ensure uniform internal pressure distribution during airtightness testing, and avoid stress concentration caused by gaps. Specifically, the fit between the product to be tested and the inner wall of the space means that the surface of the product is in close contact with the inner wall of the space. This can be achieved by designing the inner wall shape to be consistent with the contour of the product. Its purpose is to make the external pressure act evenly on the surface of the product, rather than concentrating on pores or weak areas.

[0023] In a specific embodiment of this application, the lifting mechanism 2 includes a first drive unit 6, a first mounting plate 7, a positioning plate 8, and a synchronous shaft 9; the first drive unit 6 is disposed on the first mounting plate 7, the positioning plate 8 is disposed parallel to the first mounting plate 7, the drive end of the first drive unit 6 is connected to the positioning plate 8, the synchronous shaft 9 is disposed between the first mounting plate 7 and the positioning plate 8, and the bearing unit 1 is disposed on the positioning plate 8.

[0024] The first drive unit 6 refers to the actuator that provides lifting power, which can be implemented using cylinders, hydraulic cylinders, or electric push rods, etc., to provide a reliable power source for the lifting movement of the positioning plate 8; the first mounting plate 7 refers to the fixed support structure, which can be welded from metal plates or profiles, to provide a stable mounting base for the entire lifting mechanism 2; the positioning plate 8 refers to the follow-up platform, which can be made of rigid plates, to set up the bearing unit 1 and the product to be tested on it, and to move with the drive of the first drive unit 6; the synchronous shaft 9 refers to the guide and synchronization element, which can be implemented using linear bearings, guide columns, or guide rods, to constrain the movement trajectory of the positioning plate 8 and prevent it from tilting or shaking during lifting; the bearing unit 1 refers to the component used to place the product to be tested, which can be a box structure or a tray, to fix the position of the product and transmit movement.

[0025] Specifically, the solution of this application ensures the stability of the power source by fixing the first drive unit 6 on the first mounting plate 7; the positioning plate 8 is set parallel to the first mounting plate 7 to make the motion plane consistent; the drive end of the first drive unit 6 is directly connected to the positioning plate 8 to achieve precise power transmission; the synchronous shaft 9 is set between the first mounting plate 7 and the positioning plate 8 to rigidly constrain the movement of the positioning plate 8, so that it can only move smoothly in the vertical direction; the bearing unit 1 is fixed on the positioning plate 8 and moves synchronously with the positioning plate 8.

[0026] In some embodiments, the number of synchronous shafts 9 is four and they are located at the four corners of the first mounting plate 7.

[0027] Specifically, the number of synchronous shafts 9 refers to the number of guide shafts used to maintain the synchronous movement of the lifting mechanism 2. Four shafts can be used to form a multi-point balanced support structure and avoid local stress concentration caused by too few shafts. The location of the synchronous shafts 9 refers to the distribution of the shafts on the mounting plate. They can be located at the four corners of the first mounting plate 7, or at other symmetrically distributed points, to ensure uniform force distribution by utilizing the structural geometry. The purpose is to enhance the stability of the lifting process and reduce the impact of external disturbances.

[0028] In some embodiments, the translation mechanism 3 includes a timing belt module 10 and a guide rail assembly 11. The timing belt module 10 is disposed on the mounting base 12. The timing belt module 10 is connected to the lifting mechanism 2 via a floating connector 13. The guide rail assembly 11 is disposed between the lifting mechanism 2 and the mounting base 12.

[0029] Among them, the synchronous belt module 10 refers to a transmission mechanism that uses a synchronous belt and pulleys to achieve precise linear motion. Its purpose is to provide smooth, low-noise drive and ensure the accuracy of the movement of the load-bearing part 1. The guide rail assembly 11 can be understood as a linear guide device used to guide and constrain the motion trajectory. It can be implemented using ball linear guides, roller linear guides, or sliding guides. Its purpose is to reduce swaying and lateral forces during movement and ensure the linearity of the motion trajectory. The mounting base 12 specifically refers to the basic structure that fixes and supports the entire translation mechanism 3. It can be implemented using a cast iron base, welded steel structure, or aluminum profile frame. Its purpose is to provide a stable mounting platform and absorb external vibrations. The floating connector 13, in practical applications, refers to a connection mechanism that allows small relative displacement. Its purpose is to compensate for positional deviations in the vertical direction.

[0030] In some embodiments, the floating connector 13 includes a connecting block disposed on the synchronous belt module 10, and the lifting mechanism 2 is provided with a sliding groove in the same direction as the lifting direction of the lifting mechanism 2, and the connecting block is partially slidably disposed in the sliding groove.

[0031] Among them, the floating connector 13 refers to the connecting component fixed on the synchronous belt module 10. It can be implemented by metal block or composite material block. Its purpose is to accurately transmit translational kinetic energy and provide a stable sliding interface. The sliding groove refers to the guide groove set on the lifting mechanism 2. It can be implemented by straight groove or bushing channel. Its purpose is to strictly limit the sliding direction to be consistent with the lifting direction and ensure smooth compensation of small displacements.

[0032] In some embodiments, limit sensors are provided on the opposite side of the loading / unloading station and the station to be tested.

[0033] Among them, the limit sensor refers to the sensing device used to detect the moving position of the carrier 1. It can be implemented by photoelectric switch, proximity switch or mechanical limit switch. The purpose is to accurately capture the moving end point signal of the carrier 1 at the work station boundary, so as to ensure that the translation mechanism 3 stops in time at the target position, thereby providing a basic guarantee for the accurate positioning of the work station.

[0034] In some embodiments, the sealing mechanism 5 includes a second driving part 15, a second mounting plate 16, a pressing guide post 17, and a sealing guide post 18. The second driving part 15 is disposed on the second mounting plate 16, and the second mounting plate 16 is disposed on the mounting part 4. The pressing guide post 17 is disposed at the driving end of the second driving part 15. The second driving part 15 can drive the pressing guide post 17 to press against the sealing guide post 18. The sealing guide post 18 is slidably disposed on the second mounting plate 16.

[0035] The second drive unit 15 refers to the actuator that provides controllable driving force. It can be implemented using a pneumatic cylinder, hydraulic cylinder, or servo electric push rod. Its purpose is to ensure stable output of clamping force and avoid sudden pressure changes through precise adjustment of stroke and speed. The second mounting plate 16 refers to the rigid base that supports the sealing mechanism 5. It can be implemented using a high-strength aluminum alloy plate or carbon steel plate. Its purpose is to provide a stable mounting base for the entire mechanism and prevent overall displacement during the clamping process. The clamping guide post 17 refers to the columnar connecting component that transmits driving force. It can be implemented using a quenched cylindrical metal rod. Its purpose is to efficiently transmit driving force to the sealing guide post 18. The sealing guide post 18 refers to the movable sealing component that directly contacts the surface of the product to be tested. It can be implemented using a column with guide groove and a linear bearing. Its purpose is to automatically adapt to the surface contour of the product through sliding characteristics and evenly distribute the sealing pressure.

[0036] In some embodiments, the sealing mechanism 5 further includes a guide post bushing 19 and a sealing gasket 20. A mounting hole 21 is provided on the second mounting plate 16, the sealing gasket 20 is disposed in the mounting hole 21, the sealing guide post 18 is disposed in the guide post bushing 19, the guide post bushing 19 is disposed on the second mounting plate 16, and the sealing guide post 18 abuts against the sealing gasket 20.

[0037] Among them, the guide post bushing 19 refers to a guide component used to constrain the movement trajectory of the sealing guide post 18. It can be implemented by a sleeve structure made of metal or engineering plastic, with the purpose of reducing the risk of displacement of the sealing guide post 18 during the sliding process. Specifically, the sealing gasket 20 refers to an elastic sealing element, which can be implemented by a ring structure made of rubber or silicone material, with the purpose of providing a buffering effect and uniformly distributing local pressure.

[0038] Specifically, the solution of this application provides a precise positioning base for the sealing gasket 20 through the mounting hole 21 provided on the second mounting plate 16, ensuring that the sealing gasket 20 remains in a fixed position when compressed; based on the elastic characteristics of the sealing gasket 20, a buffer layer with uniform deformation is formed during the compression process, effectively absorbing the impact force applied by the compression guide post 17; at the same time, the precision inner wall of the guide post bushing 19 constrains the movement trajectory of the sealing guide post 18, so that it strictly maintains the vertical direction during the sliding process; finally, the sealing guide post 18 abuts against the sealing gasket 20, and when the compression guide post 17 is pressed down, the elastic deformation of the sealing gasket 20 can adapt to the slight unevenness of the product pore surface, achieving a tight fit and seal and dispersing local stress.

[0039] In some embodiments, the sealing mechanism 5 further includes an anti-rotation block 22 and an anti-rotation plunger 23. The anti-rotation block 22 is disposed on the second mounting plate 16. There are two anti-rotation blocks 22 symmetrically disposed on both sides of the guide post bushing 19. The anti-rotation plunger 23 is disposed on the anti-rotation block 22 and can abut against the guide post bushing 19.

[0040] Among them, the anti-rotation block 22 refers to the fixed component used to limit the rotation of the guide post bushing 19. In practical applications, it can be a rigid block structure, which can be made of metal material to provide sufficient support strength. Its purpose is to prevent the guide post bushing 19 from rotating during the clamping process by physical blocking. The anti-rotation plunger 23 refers to the adjustable clamping element, which can be an elastically loaded or threaded adjustable plunger. It can be made of precision machined metal or composite material to adapt to changes in assembly tolerance. Its purpose is to dynamically apply a controllable clamping force to ensure that the guide post bushing 19 is firmly constrained without affecting its axial sliding function.

[0041] Specifically, the solution of this application ensures the stability of the rotation constraint foundation during high-pressure testing by rigidly connecting the anti-rotation block 22 with the second mounting plate 16; the two symmetrically arranged anti-rotation blocks 22 achieve uniform force distribution on both sides of the guide post bushing 19, avoiding deflection caused by unilateral pressure; the anti-rotation plunger 23 directly restricts the rotational degree of freedom of the guide post bushing 19 through its clamping mechanism, thereby ensuring that the sealing guide post 18 slides only in a straight line along the axial direction, effectively preventing the sealing surface from shifting due to rotation, and finally forming a complete rotation constraint system.

[0042] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An airtightness testing device for an ultra-thin new energy liquid-cooled plate, characterized in that, include: The support section is used to place the product to be tested; A lifting mechanism, wherein the supporting part is provided on the lifting end of the lifting mechanism; A translation mechanism, wherein the lifting mechanism is provided on the drive end of the translation mechanism, and the translation mechanism can drive the bearing part to reciprocate between the loading / unloading station and the inspection station; The mounting part is disposed above the workstation to be tested; A sealing mechanism is provided on the mounting part, and the sealing mechanism is capable of sealing the pores on the product to be tested; The supporting part is a box body, and the mounting part is a box cover. The box body and the box cover can be closed to form a space to accommodate the product to be tested. The product to be tested is in contact with the inner wall of the space. The sealing mechanism includes a second driving part, a second mounting plate, a pressing guide post, and a sealing guide post. The second driving part is disposed on the second mounting plate, and the second mounting plate is disposed on the mounting part. The pressing guide post is disposed on the driving end of the second driving part. The second driving part can drive the pressing guide post to press against the sealing guide post. The sealing guide post is slidably disposed on the second mounting plate.

2. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 1, characterized in that, The lifting mechanism includes a first drive unit, a first mounting plate, a positioning plate, and a synchronous shaft; the first drive unit is disposed on the first mounting plate, the positioning plate is disposed parallel to the first mounting plate, the drive end of the first drive unit is connected to the positioning plate, the synchronous shaft is disposed between the first mounting plate and the positioning plate, and the bearing unit is disposed on the positioning plate.

3. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 2, characterized in that, The number of synchronous shafts is four, and they are located at the four corners of the first mounting plate.

4. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 1, characterized in that, The translation mechanism includes a timing belt module and a guide rail assembly. The timing belt module is mounted on the mounting base and is connected to the lifting mechanism via a floating connector. The guide rail assembly is located between the lifting mechanism and the mounting base.

5. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 4, characterized in that, The floating connector includes a connecting block disposed on the synchronous belt module. The lifting mechanism is provided with a sliding groove in the same direction as the lifting direction of the lifting mechanism, and a portion of the connecting block is slidably disposed within the sliding groove.

6. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 1, characterized in that, The limit sensor is installed on the side opposite to both the loading / unloading station and the station to be tested.

7. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 1, characterized in that, The sealing mechanism further includes a guide post bushing and a sealing gasket. The second mounting plate is provided with a mounting hole, the sealing gasket is disposed in the mounting hole, the sealing guide post is disposed in the guide post bushing, the guide post bushing is disposed on the second mounting plate, and the sealing guide post abuts against the sealing gasket.

8. The airtightness testing device for ultra-thin new energy liquid-cooled plates according to claim 7, characterized in that, The sealing mechanism further includes an anti-rotation block and an anti-rotation plunger. The anti-rotation block is disposed on the second mounting plate. There are two anti-rotation blocks, which are symmetrically disposed on both sides of the guide post bushing. The anti-rotation plunger is disposed on the anti-rotation block and can abut against the guide post bushing.

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