Battery water cooling plate temperature uniformity test equipment

Abstract

The application discloses a battery water cooling plate temperature uniformity test equipment, and relates to the technical field of battery processing equipment.The battery water cooling plate temperature uniformity test equipment comprises a device support, a heat source assembly, an infrared thermal imaging module, a fluid circulation module and a turnover plate assembly.The turnover plate assembly comprises a turnover shaft, a material placing rack and a pipeline joint.The turnover shaft is rotated to drive the material placing rack to move, and the water cooling plate that has completed the test is moved under the driving of the material placing rack rotation;at this time, a new material placing rack is connected with the feeding rack, and a pushing rod can push the water cooling plate on the feeding rack into the new material placing rack;when the unloading operation of the previous water cooling plate is not completed, the test operation of the second water cooling plate can be performed, the test efficiency is greatly improved, and the waiting time for the unloading of the water cooling plate is shortened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery processing equipment, in particular to a battery water cooling plate temperature uniformity test equipment. BACKGROUND

[0002] As a core component of a new energy power battery thermal management system, the water cooling plate directly affects the safety, service life and performance of the battery in design and application; for example, a water cooling plate with embedded pipelines and a cooling system in patent application CN222190930U uses the water cooling plate to cool and dissipate heat of the battery, therefore, as a safety critical component of the battery, the water cooling plate needs to pass the temperature uniformity test before leaving the factory, the heat dissipation effect and thermal performance of the water cooling plate are tested, and the water cooling plate can be packaged and shipped only after the performance test meets the standard;

[0003] When the performance test of the water cooling plate is performed, the water cooling plate needs to be positioned on a test table, a heat source is arranged on the test table and used for heating the water cooling plate, and cooling liquid is injected into the pipeline of the water cooling plate at the same time, the heat dissipation performance of the water cooling plate is determined by testing the temperature difference of the injected and flowed-out cooling liquid, and the heat distribution on the water cooling plate is observed by using a thermal imaging technology, in this process, after the water cooling plate completes the test, the water cooling plate that has been tested needs to be unloaded from the test table before the second water cooling plate test operation is performed, and this mode is low in efficiency and is not conducive to mass production test. SUMMARY

[0004] The application overcomes the problem that the water cooling plate needs to be unloaded from the test table after the test is completed before the second water cooling plate test operation is performed, the mode is low in efficiency and is not conducive to mass production test, and aims to provide a battery water cooling plate temperature uniformity test equipment.

[0005] The technical problem of the application is solved by the following technical scheme:

[0006] A battery water cooling plate temperature uniformity test equipment is used for temperature uniformity test of a water cooling plate with a water cooling pipeline, and comprises:

[0007] A device support is provided with a feeding rack, a pushing rod is arranged on one side of the device support of the feeding rack, and is used for pushing the water cooling plate into the feeding rack;

[0008] A heat source assembly is arranged on the device support at the lower part of the feeding rack, and is used for providing a heat source;

[0009] An infrared thermal imaging module is arranged on the device support at the upper part of the feeding rack, and is used for acquiring a temperature distribution visual image of the surface of the water cooling plate;

[0010] A fluid circulation module for outputting and recycling the cooling liquid, which is provided with an output pipeline for outputting the cooling liquid and a recycling pipeline for recycling the cooling liquid;

[0011] A flap assembly, which comprises a turnover shaft, a material placing rack and a pipeline joint, the turnover shaft is rotatably installed on the device support, the turnover shaft is driven to rotate by a stepping motor, the turnover shaft is provided with the material placing racks in an equiangular matrix, the material placing racks are in a U-shaped structure, the opening side of the U-shaped structure faces the pushing rod, the pipeline joint is provided with two material placing racks in the middle, one of the pipeline joints is connected with the output pipeline, and the other pipeline joint is connected with the recycling pipeline.

[0012] Further, the material placing rack is fixed with a support seat, a flow channel cavity and a piston cavity are arranged in the support seat, the pipeline joint connected with the output pipeline is arranged on the support seat and communicates with the flow channel cavity, first and second connecting flow channels are arranged between the flow channel cavity and the piston cavity, a floating piston is arranged in the piston cavity, one side of the floating piston is provided with a pressing rod, one end of the pressing rod penetrates out of the piston cavity and is located outside the support seat, a baffle is fixed on the feeding rack, when the material placing rack moves to the horizontal position of the feeding rack, the pressing rod is limited to move into the support seat by the baffle.

[0013] An extrusion spring is arranged between the other side of the floating piston and the piston cavity, a liquid inlet is coaxially arranged on the support seat and corresponds to the first connecting flow channel, the liquid inlet is connected with the output pipeline, and an air inlet is coaxially arranged on the support seat and corresponds to the second connecting flow channel.

[0014] Further, the length of the floating piston is greater than the distance between the first connecting flow channel and the second connecting flow channel, when the floating piston moves to the end side of the piston cavity, the port of one of the first connecting flow channel and the second connecting flow channel is exposed outside the floating piston.

[0015] Further, a first temperature sensor is arranged at the liquid inlet, and a second temperature sensor is arranged on the pipeline joint connected with the recycling pipeline.

[0016] Further, a limiting shaft is rotatably installed at the end of the U-shaped structure of the material placing rack, the limiting shaft is driven to rotate by a limiting motor, and a limiting block is fixedly installed on the limiting shaft.

[0017] Further, the fluid circulation module comprises a circulating pump and a cooling liquid tank, the bottom of the cooling liquid tank is connected with the output pipeline, a liquid guide pipe is fixedly arranged at the lower part of the cooling liquid tank, the liquid guide pipe is in a U-shaped structure, one end of the liquid guide pipe is located inside the cooling liquid tank, and the other end of the liquid guide pipe is located outside the cooling liquid tank, the end of the liquid guide pipe located outside the cooling liquid tank is connected with the liquid outlet of the circulating pump, and the liquid inlet of the circulating pump communicates with the recycling pipeline.

[0018] Further, the guide pipe is installed with a guide frame at the end of the inner end of the cooling liquid tank, and the guide frame is installed with an arc-shaped partition plate.

[0019] Further, the upper part of the cooling liquid tank is provided with an exhaust port, the exhaust port is slidably installed with a sealing column, the sealing column is installed with a sealing plug, and the lower end of the sealing column is provided with a supporting spring between the arc-shaped partition plate.

[0020] Further, the device support is fixed with a mounting cylinder, the turnover shaft is coaxially rotated through the mounting cylinder, the mounting cylinder is slidably installed with a moving ring, one end of the mounting cylinder is provided with a return spring, the return spring applies a pushing force to the moving ring to one side of the placement rack, and the outer circle of the moving ring is provided with an inclined ring surface in contact with the sealing column.

[0021] Further, the floating piston is fixed with a cooperative rod, one end of the cooperative rod penetrates out of the support seat, the turnover shaft is provided with a mounting groove, the end of the cooperative rod can be inserted into the mounting groove, the mounting groove is slidably installed with a linkage column, one end of the linkage column is provided with an inclined surface in contact with the cooperative rod, and the other end of the linkage column is fixedly connected to a synchronous ring, and the synchronous ring is rotationally connected to the moving ring.

[0022] The beneficial effects of the present application are:

[0023] By rotating the stepping motor, the turnover shaft is rotated, and then the placement rack is moved, and the water-cooled plate that has completed the test is moved under the rotation of the placement rack, at this time, a new placement rack will be connected with the feeding rack, and the pushing rod can push the water-cooled plate on the feeding rack into the new placement rack, so that the test operation of the second water-cooled plate can be performed when the unloading operation of the previous water-cooled plate is not completed, thereby greatly improving the test efficiency and shortening the waiting time for unloading the water-cooled plate.

[0024] Through the output pipeline and the recovery pipeline, when the test operation of the water-cooled plate is completed, the cooling liquid retained in the water-cooled plate can be sucked into the recovery pipeline under the suction force of the recovery pipeline, so that the input operation of the cooling liquid to the water-cooled plate during the test of the water-cooled plate can be realized, and the cooling liquid retained in the water-cooled plate after the test is completed can be recovered, thereby improving the utilization efficiency of the cooling liquid.

[0025] By pressing the sealing column, the sealing plug is separated from the exhaust port, and the gas in the cooling liquid tank can be discharged through the exhaust port, thereby realizing the pressure reduction operation of the cooling liquid tank, preventing the explosion of the cooling liquid tank, and avoiding the damage of the circulating pump. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the present application is shown in the figure;

[0027] Figure 2 This is a schematic diagram of the material rack installation according to the present invention;

[0028] Figure 3 This is a schematic diagram of the pipe joint structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the support base installation of the present invention;

[0030] Figure 5 This is a schematic diagram of the support structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the coolant tank installation according to the present invention;

[0032] Figure 7 This is a cross-sectional schematic diagram of the coolant tank of the present invention;

[0033] Figure 8 This is a schematic diagram of the installation of the collaborative rod according to the present invention.

[0034] In the diagram: 1. Device support frame; 2. Heat source assembly; 3. Infrared thermal imaging module; 4. Fluid circulation module; 5. Flip plate assembly; 12. Feed rack; 13. Push rod; 14. Output pipe; 15. Recovery pipe; 21. Tilting shaft; 22. Material rack; 23. Pipe joint; 201. Joint body; 202. Ejector pin; 203. Connecting plate; 204. Guide channel; 205. Pressure boosting spring; 206. Isolation plug; 31. Support base; 32. Flow channel cavity; 33. Piston cavity; 34. First connecting flow channel; 35. Second connecting flow channel; 36. Floating piston; 37. Top 38. Pressure rod; 39. Baffle; 40. Compression spring; 41. Liquid inlet; 52. Air inlet; 53. First temperature sensor; 54. Second temperature sensor; 65. Limiting shaft; 66. Limiting block; 77. Circulating pump; 78. Coolant tank; 79. Liquid guide pipe; 70. Filter plate; 71. Guide frame; 72. Arc-shaped partition; 83. Exhaust port; 84. Sealing column; 85. Sealing plug; 86. Support spring; 87. Mounting cylinder; 88. Moving ring; 89. Return spring; 90. Beveled ring surface; 91. Coordinating rod; 92. Mounting groove; 93. Linkage column; 94. Synchronization ring. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0036] Example 1: As Figures 1-3 As shown, a battery water-cooled plate temperature uniformity testing device is used to conduct temperature uniformity tests on water-cooled plates with water-cooling pipes, including:

[0037] The device support 1 is provided with a feeding rack 12, and a pushing rod 13 is arranged on one side of the device support 1 of the feeding rack 12, which is used for pushing the water-cooled plate into the feeding rack 12.

[0038] The heat source assembly 2, which can be an electric heating pipe, is arranged on the device support 1 at the lower part of the feeding rack 12 and is used for providing a heat source.

[0039] The infrared thermal imaging module 3, such as a FLIR A655sc, is arranged on the device support 1 at the upper part of the feeding rack 12 and is used for acquiring a temperature distribution visual image of the surface of the water-cooled plate.

[0040] The fluid circulation module 4 is used for outputting and recycling the cooling liquid and is provided with an output pipeline 14 for outputting the cooling liquid and a recycling pipeline 15 for recycling the cooling liquid.

[0041] The turnover assembly 5 includes a turnover shaft 21, a placing rack 22 and a pipeline joint 23. The turnover shaft 21 is rotatably arranged on the device support 1 and is driven to rotate by a stepping motor. The placing rack 22 is arranged on the turnover shaft 21 in an equiangular matrix, and preferably four placing racks 22 are arranged. The adjacent placing racks 22 can be kept perpendicular to prevent the placing rack 22 from affecting the scanning of the infrared thermal imaging module 3 on the water-cooled plate. The placing rack 22 has a U-shaped structure, and the opening side of the U-shaped structure faces the pushing rod 13. The pipeline joint 23 is provided with two pipeline joints 23, each of which is arranged at the middle part of the placing rack 22. One of the pipeline joints 23 is connected with the output pipeline 14, and the other pipeline joint 23 is connected with the recycling pipeline 15.

[0042] The turnover shaft 21 is provided with a rotary joint, such as a Moflon GJ series rotary joint. The output pipeline 14 and the recycling pipeline 15 are respectively connected with the pipeline joint 23 through the rotary joint.

[0043] The pipeline joint 23 includes a joint body 201, a thimble 202 and a butt joint disc 203. The joint body 201 is internally provided with a flow guide channel 204, one end of which is provided with a bucket-shaped opening. The flow guide channel 204 is internally provided with a separation plug 206 and a booster spring 205. The booster spring 205 acts on the separation plug 206 to the side of the bucket-shaped opening. The separation plug 206 is provided with a slope matched with the bucket-shaped opening. The thimble 202 is fixed on the separation plug 206 and is hollow inside. The thimble 202 is provided with a perforation at the end close to the separation plug 206. The butt joint disc 203 is fixed on the thimble 202. When the pipeline on the water-cooled plate is butt jointed, the end of the pipeline on the water-cooled plate is sleeved on the end of the thimble 202 to extrude the butt joint disc 203 and push the thimble 202 to move into the flow guide channel 204. At this time, the separation plug 206 is separated from the bucket-shaped opening, and the liquid in the flow guide channel 204 can pass through the thimble 202. The pipeline joint 23 can be connected with the pipeline on the water-cooled plate.

[0044] In the water-cooled plate test operation, the turnover shaft 21 is driven to rotate by the stepping motor, and the material placing rack 22 is moved. When the material placing rack 22 moves to the position level with the feeding rack 12, the water-cooled plate on the feeding rack 12 is pushed into the material placing rack 22 by the pushing rod 13 on the side of the feeding rack 12, the pipe end on the water-cooled plate is inserted into the pipe joint 23, and the cooling liquid output by the fluid circulation module 4 enters the pipe on the water-cooled plate through the pipe joint 23. At this time, the heat source assembly 2 generates heat to heat the water-cooled plate, and the infrared thermal imaging module 3 arranged on the device support 1 is used to scan the water-cooled plate to obtain the temperature distribution image of the surface of the water-cooled plate.

[0045] When the test operation of a water-cooled plate is completed, the turnover shaft 21 is driven to rotate by the stepping motor, and the material placing rack 22 is moved. The water-cooled plate that has completed the test is moved under the driving of the material placing rack 22. At this time, a new material placing rack 22 is docked with the feeding rack 12, and the pushing rod 13 can push the water-cooled plate on the feeding rack 12 into the new material placing rack 22. Before the unloading operation of the previous water-cooled plate is completed, the test operation of the second water-cooled plate can be performed, which greatly improves the test efficiency and shortens the waiting time for unloading the water-cooled plate.

[0046] Example 2: Based on example 1, as shown in Figures 1-5 The support seat 31 is fixed on the material placing rack 22, the flow channel cavity 32 and the piston cavity 33 are arranged in the support seat 31, the pipe joint 23 connected with the output pipe 14 is arranged on the support seat 31 and communicates with the flow channel cavity 32, the first connecting flow channel 34 and the second connecting flow channel 35 are arranged between the flow channel cavity 32 and the piston cavity 33, the floating piston 36 is arranged in the piston cavity 33, the top pressing rod 37 is arranged on one side of the floating piston 36, one end of the top pressing rod 37 penetrates out of the piston cavity 33 and is located outside the support seat 31, the baffle 38 is fixed on the feeding rack 12, and the top pressing rod 37 is limited to move into the support seat 31 by the baffle 38 when the material placing rack 22 moves to the horizontal position with the feeding rack 12.

[0047] The extrusion spring 39 is arranged between the other side of the floating piston 36 and the piston cavity 33, the liquid inlet 40 is coaxially arranged on the support seat 31 corresponding to the first connecting flow channel 34, the liquid inlet 40 is connected with the output pipe 14, the air inlet 41 is coaxially arranged on the support seat 31 corresponding to the second connecting flow channel 35, and the one-way valve is arranged at the air inlet 41 to limit the airflow to flow only from the air inlet 41 to the inside of the piston cavity 33.

[0048] The floating piston 36 has a length greater than the distance between the first connecting flow channel 34 and the second connecting flow channel 35, when the floating piston 36 moves to the end side of the piston cavity 33, the port of one of the first connecting flow channel 34 and the second connecting flow channel 35 is exposed outside the floating piston 36;

[0049] When the placing rack 22 moves to the horizontal position with the feeding rack 12, the top pressing rod 37 on the support base 31 contacts the baffle 38, and the top pressing rod 37 extrudes the floating piston 36 into the piston cavity 33 under the limitation of the baffle 38, with the floating piston 36 moving to one side of the extrusion spring 39, the first connecting flow channel 34 is exposed inside the piston cavity 33, at this time, the cooling liquid flowing out of the output pipeline 14 enters the piston cavity 33 through the liquid inlet 40, and then enters the flow channel cavity 32 through the first connecting flow channel 34, and then enters the pipeline in the water-cooled plate through the flow channel cavity 32 and the pipeline joint 23;

[0050] When the water-cooled plate test is completed, the placing rack 22 moves with the rotation of the turnover shaft 21, so that the top pressing rod 37 is out of the limitation of the baffle 38, at this time, the floating piston 36 pushes the top pressing rod 37 to move outside the support base 31 under the action of the extrusion spring 39, the floating piston 36 moves to the first connecting flow channel 34, and the port of the first connecting flow channel 34 is sealed by the floating piston 36, at this time, the cooling liquid entering the liquid inlet 40 cannot pass through the first connecting flow channel 34 under the blockage of the floating piston 36, at the same time, the second connecting flow channel 35 is exposed in the piston cavity 33 with the movement of the floating piston 36, at this time, the gas outside the water-cooled plate can enter the water-cooled plate through the air inlet 41, the piston cavity 33 and the second connecting flow channel 35, and the cooling liquid remaining in the water-cooled plate can be sucked into the recovery pipeline 15 under the suction of the recovery pipeline 15, thereby realizing the input of the cooling liquid into the water-cooled plate during the water-cooled plate test, and recovering the cooling liquid remaining in the water-cooled plate after the test is completed, and improving the utilization efficiency of the cooling liquid;

[0051] The first temperature sensor 51 is arranged at the liquid inlet 40, and the second temperature sensor 52 is arranged on the pipeline joint 23 connected with the recovery pipeline 15, the temperature of the cooling liquid flowing into the water-cooled plate is detected by the first temperature sensor 51, the temperature of the cooling liquid flowing out of the water-cooled plate is detected by the second temperature sensor 52, the heat dissipation effect of the water-cooled plate is verified by comparing the temperature difference between the two, the higher the temperature difference, the better the heat dissipation, and vice versa;

[0052] The U-shaped structure of the material rack 22 is rotatably provided with a limiting shaft 61 at the end of the supporting leg, the limiting shaft 61 is driven to rotate by a limiting motor, and the limiting shaft 61 is fixedly provided with a limiting block 62; after the water-cooled plate is pushed into the material rack 22 by the pushing rod 13, the limiting motor drives the limiting shaft 61 to rotate, and in turn drives the limiting block 62 to deflect, and the limiting block 62 is used to press the water-cooled plate into the U-shaped structure of the material rack 22, so that the water-cooled plate can be stably positioned on the material rack 22 during the test.

[0053] Example 3: on the basis of example 2, as shown in Figures 1-8 The fluid circulation module 4 includes a circulating pump 71 and a cooling liquid tank 72, the bottom of the cooling liquid tank 72 is connected with the output pipeline 14, the lower part of the cooling liquid tank 72 is fixedly provided with a liquid guide pipe 73, the liquid guide pipe 73 has a U-shaped structure, one end of the liquid guide pipe 73 is located in the cooling liquid tank 72, and the other end of the liquid guide pipe 73 is located outside the cooling liquid tank 72, the end located outside the cooling liquid tank 72 is connected with the liquid outlet of the circulating pump 71, and the liquid inlet of the circulating pump 71 is in communication with the recovery pipeline 15;

[0054] The cooling liquid tank 72 is provided with a filter plate 74, and the end of the liquid guide pipe 73 located in the cooling liquid tank 72 is located on the upper part of the filter plate 74, so that the cooling liquid entering the cooling liquid tank 72 can be filtered by the filter plate 74;

[0055] The circulating pump 71 sucks the cooling liquid through the recovery pipeline 15 and then discharges the cooling liquid into the cooling liquid tank 72 through the liquid guide pipe 73, so that the pressure in the cooling liquid tank 72 increases with the entry of the cooling liquid, and when the liquid inlet 40 on the supporting seat 31 is in communication with the first connecting flow channel 34, the pressurized cooling liquid in the cooling liquid tank 72 is injected into the pipeline of the water-cooled plate through the output pipeline 14;

[0056] The end of the liquid guide pipe 73 located in the cooling liquid tank 72 is provided with a guide frame 75, and the guide frame 75 is provided with an arc-shaped partition plate 76; the arc-shaped partition plate 76 is used to guide the cooling liquid flowing out of the liquid guide pipe 73, so as to prevent the cooling liquid from being sprayed to the top of the cooling liquid tank 72;

[0057] When the turnover shaft 21 rotates, all the racks 22 are not flush with the feed rack 12, at this time, the liquid inlet 40 on the support seat 31 is blocked with the first connecting flow channel 34, the cooling liquid discharged from the output pipe 14 cannot flow, and with the continuous work of the circulating pump 71, the air in the water cooling plate will be sucked into the cooling liquid tank 72, which will increase the pressure in the cooling liquid tank 72, and long time use will cause the cooling liquid tank 72 to burst or damage the circulating pump 71, therefore, the upper part of the cooling liquid tank 72 is provided with an exhaust port 81, the exhaust port 81 is slidingly installed with a sealing column 82, the sealing column 82 is installed with a sealing plug 83, and the lower end of the sealing column 82 and the arc-shaped partition plate 76 are provided with a supporting spring 84; by pressing down the sealing column 82, the sealing plug 83 is separated from the exhaust port 81, and the gas in the cooling liquid tank 72 can be discharged through the exhaust port 81, thereby realizing the decompression operation of the cooling liquid tank 72, preventing the cooling liquid tank 72 from bursting, and avoiding the damage of the circulating pump 71;

[0058] The device support 1 is fixed with a mounting cylinder 85, the turnover shaft 21 co-axially rotates through the mounting cylinder 85, the mounting cylinder 85 is slidingly installed with a moving ring 86, the moving ring 86 is sleeved with the mounting cylinder 85 through key groove cooperation, one end of the mounting cylinder 85 is provided with a reset spring 87, the reset spring 87 applies a pushing force to the moving ring 86 to one side of the rack 22, the outer circle of the moving ring 86 is provided with a chamfered ring surface 88 in contact with the sealing column 82, when the moving ring 86 moves to the rack 22, the chamfered ring surface 88 pushes the sealing column 82 to move to the inside of the cooling liquid tank 72; by pushing the moving ring 86 to move, when the moving ring 86 moves to one side of the rack 22, the chamfered ring surface 88 on the moving ring 86 pushes the sealing column 82 to move to the inside of the cooling liquid tank 72, and when the moving ring 86 moves away from one side of the rack 22, at this time, the extrusion force of the chamfered ring surface 88 on the sealing column 82 decreases, the sealing column 82 is driven by the supporting spring 84 to move the sealing plug 83 upward, so that the sealing plug 83 contacts the exhaust port 81;

[0059] The floating piston 36 is fixed with a cooperative rod 89, one end of the cooperative rod 89 penetrates through the support base 31, the turnover shaft 21 is provided with a mounting groove 90, the end of the cooperative rod 89 can be inserted into the mounting groove 90, the mounting groove 90 is slidably provided with a linkage column 91, one end of the linkage column 91 is provided with a bevel surface in contact with the cooperative rod 89, the other end of the linkage column 91 is fixedly connected to a synchronous ring 92, the synchronous ring 92 is rotatably connected to the moving ring 86; when the material placing frame 22 is flush with the feeding frame 12, the pressing rod 37 contacts the baffle 38, is extruded by the baffle 38, the pressing rod 37 pushes the floating piston 36 to move, and the floating piston 36 synchronously pushes the cooperative rod 89 to move, the end of the cooperative rod 89 extrudes the bevel surface on the linkage column 91, the linkage column 91 drives the synchronous ring 92 to displace together to the mounting cylinder 85, and further pushes the moving ring 86 on the mounting cylinder 85 to move away from the material placing frame 22, at this time, the liquid inlet 40 on the support base 31 is in a through state with the first connecting flow channel 34, and at the same time, the pushing force of the bevel surface 88 on the moving ring 86 on the sealing column 82 is reduced, the sealing column 82 drives the sealing plug 83 to move upwards, at this time, the sealing plug 83 blocks the exhaust port 81 on the cooling liquid tank 72 upwards, and the pressure in the cooling liquid tank 72 can be released and discharged to the water-cooled plate through the output pipeline 14;

[0060] When the turnover shaft 21 rotates and drives the material placing frame 22 to displace, all the material placing frames 22 on the turnover shaft 21 are not flush with the feeding frame 12, the liquid inlet 40 in the support base 31 on all the material placing frames 22 is in a blocked state with the first connecting flow channel 34, that is, the output pipeline 14 is in a blocked state, at this time, the pressing rod 37 is separated from the baffle 38, the floating piston 36 drives the cooperative rod 89 to move away from the linkage column 91 under the action of the supporting spring 84, and drives the moving ring 86, the synchronous ring 92 and the linkage column 91 to move to the material placing frame 22 under the action of the reset spring 87, because the moving ring 86 moves to extrude the sealing column 82 in the cooling liquid tank 72, the gas in the cooling liquid tank 72 can be discharged through the exhaust port 81, when the output pipeline 14 is in a blocked state, the cooling liquid tank 72 can release pressure to prevent the tank from exploding.

[0061] The basic principle and main features of the present application are shown and described, and the advantages of the present application are shown and described. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A battery water-cooling plate temperature uniformity test apparatus for testing temperature uniformity of a water-cooling plate having a water-cooling pipe, characterized by, The utility model provides a device support, which is provided with a feeding rack, a pushing rod arranged on one side of the device support for pushing the water-cooled plate into the feeding rack, a heat source assembly arranged on the device support at the lower part of the feeding rack for providing a heat source, an infrared thermal imaging module arranged on the device support at the upper part of the feeding rack for acquiring a temperature distribution visual image of the surface of the water-cooled plate, a fluid circulation module for outputting and recycling the cooling liquid, which is provided with an output pipeline for outputting the cooling liquid and a recycling pipeline for recycling the cooling liquid, and a turnover plate assembly including a turnover shaft, a material placing rack and a pipeline joint, wherein the turnover shaft is rotatably arranged on the device support and is driven to rotate by a stepping motor, the turnover shaft is provided with the material placing racks at equal angles, the material placing racks have a U-shaped structure, the opening side of the U-shaped structure faces the pushing rod, and the pipeline joint is provided with two pipeline joints, each of which is arranged at the middle part of the material placing rack, one of the pipeline joints is connected with the output pipeline, and the other pipeline joint is connected with the recycling pipeline. The material placing rack is fixedly provided with a support seat, the support seat is internally provided with a flow channel cavity and a piston cavity, the pipeline joint connected with the output pipeline is arranged on the support seat and communicates with the flow channel cavity, first and second connecting flow channels are arranged between the flow channel cavity and the piston cavity, the piston cavity is internally provided with a floating piston, one side of the floating piston is provided with a pressing rod, one end of the pressing rod penetrates through the piston cavity and is located outside the support seat, the feeding rack is fixedly provided with a baffle, and the pressing rod is limited by the baffle to move into the support seat when the material placing rack moves to a horizontal position relative to the feeding rack. The other side of the floating piston and the piston cavity are provided with a compression spring, the support seat is coaxially provided with a liquid inlet corresponding to the first connecting flow channel, and the liquid inlet is connected with the output pipeline. The support seat is coaxially provided with an air inlet corresponding to the second connecting flow channel. The length of the floating piston is greater than the distance between the first and second connecting flow channels, and when the floating piston moves to the end side of the piston cavity, the port of one of the first and second connecting flow channels is exposed outside the floating piston. A first temperature sensor is arranged at the liquid inlet, and a second temperature sensor is arranged at the pipeline joint connected with the recycling pipeline.

2. The battery water-cooling plate temperature uniformity test apparatus according to claim 1, characterized by, The U-shaped structure of the material placing rack is rotatably provided with a limiting shaft at the end of the supporting leg, the limiting shaft is driven to rotate by a limiting motor, and the limiting shaft is fixedly provided with a limiting block. The fluid circulation module includes a circulating pump and a cooling liquid tank, the bottom of the cooling liquid tank is connected with the output pipeline, the lower part of the cooling liquid tank is fixedly provided with a liquid guide pipe, the liquid guide pipe has a U-shaped structure, one end of the liquid guide pipe is located inside the cooling liquid tank, and the other end of the liquid guide pipe is located outside the cooling liquid tank, the end located outside the cooling liquid tank is connected with the liquid outlet of the circulating pump, and the liquid inlet of the circulating pump communicates with the recycling pipeline.

3. The battery water-cooling plate temperature uniformity test apparatus according to claim 2, characterized by, A guide frame is arranged at the end of the end located inside the cooling liquid tank of the liquid guide pipe, and an arc-shaped partition plate is arranged on the guide frame.

4. The battery water-cooling plate temperature uniformity test apparatus according to claim 2, characterized by, An air outlet is arranged at the upper part of the cooling liquid tank, a sealing column is slidably arranged at the air outlet, a sealing plug is arranged on the sealing column, and a supporting spring is arranged between the lower end of the sealing column and the arc-shaped partition plate.

5. The battery water-cooling plate temperature uniformity test apparatus according to claim 1, characterized by, ​ 6. The battery water-cooling plate temperature uniformity test apparatus according to claim 2, characterized by, ​ 7. The battery water-cooling plate temperature uniformity test apparatus according to claim 6, characterized by, ​ 8. The battery water-cooling plate temperature uniformity test apparatus according to claim 7, characterized by, ​ 9. The battery water-cooling plate temperature uniformity test apparatus according to claim 8, characterized by, The device support is fixed with an installation cylinder, the turnover shaft is coaxially rotated through the installation cylinder, the installation cylinder is slidably installed with a moving ring, one end of the installation cylinder is provided with a reset spring, the reset spring applies a pushing force to the moving ring to the one side of the rack, the outer ring of the moving ring is provided with a beveled ring surface in contact with the sealing column, and when the moving ring moves to the rack, the beveled ring surface pushes the sealing column to move to the inside of the cooling liquid tank.

10. The battery water-cooling plate temperature uniformity test apparatus according to claim 9, characterized by, The floating piston is fixed with a cooperative rod, one end of the cooperative rod penetrates through the support seat, the turnover shaft is provided with an installation groove, the end of the cooperative rod can be inserted into the installation groove, the installation groove is slidably installed with a linkage column, one end of the linkage column is provided with a beveled surface in contact with the cooperative rod, the other end of the linkage column is fixedly connected with a synchronous ring, and the synchronous ring is rotatably connected with the moving ring.

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