Test device for a thermal management module for a vehicle

Abstract

A test device for a vehicle thermal management module, comprising a rack, an integrated air path module, an upper clamp, a lower clamp, a locking assembly; the top of the rack is provided with a lifting plate and a driving unit; the integrated air path module comprises a connecting plate and a plurality of air path channels, and the air path channels form a plurality of first interfaces on the lower surface of the connecting plate; the upper clamp comprises a top plate and a test rod, and the top plate is provided with a second interface and a third interface; the test rod is provided with a fourth interface and a first air inlet, and the fourth interface is communicated with the third interface through a pipeline; the locking assembly comprises a locking block, a locking rod and a driving piece, and the driving piece is used to drive the locking block to move transversely relative to the connecting plate, so as to move the locking block between a first position in which the locking rod is pushed upward to lock the top plate below the connecting plate and a second position in which the locking rod is avoided to separate the top plate and the connecting plate upward and downward. The application improves the test efficiency and accuracy of the vehicle thermal management module.

Description

Technical Field

[0001] This invention relates to the field of vehicle component testing technology, and specifically to a testing device for an automotive thermal management module. Background Technology

[0002] With the continuous development of the automotive industry, vehicle performance has become a major focus. To improve vehicle performance, a thermal management system is typically used to manage the vehicle's thermal energy, keeping all components operating within their optimal temperature range. The core component of the thermal management system is the thermal management module. To ensure the reliability of the thermal management module, it needs to undergo sealing tests. The thermal management module has a complex structure, with multiple channels and control valves. Different channels are controlled by different valves. To guarantee the performance of the thermal management module, sealing tests must be performed on all channels.

[0003] Current technology employs a manual connection method. This involves manually connecting the test gas path to the channel under test, energizing or de-energizing the corresponding solenoid valves according to the channel's requirements, and then connecting the test channel to a leak tester. The leak tester is then activated to perform a leak test on the channel. After the test, the test line is manually disconnected from the leak tester, and the gas path is switched to the next channel under test. The corresponding solenoid valves are then energized or de-energized according to the channel's requirements. This process is repeated manually until all channels have been tested. Before each test, manual connection of the channel and control solenoid valves is required. After the test, manual switching of the solenoid valves and the channel to the next channel is necessary, resulting in a cumbersome process. This method is time-consuming and labor-intensive, leading to low efficiency. Furthermore, the requirement for manual adherence to pre-defined channel-to-sole valve correspondences increases the risk of errors over time. Incorrect connections or misinterpretations of the channel-to-sole valve correspondences can result in some channels not undergoing leak testing, leading to low reliability. Summary of the Invention

[0004] The main objective of this invention is to provide a testing device for automotive thermal management modules, so as to improve the testing efficiency and accuracy of automotive thermal management modules.

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

[0006] The testing apparatus for automotive thermal management modules includes a frame, an integrated air circuit module mounted on the frame, an upper clamp, a lower clamp, and a locking assembly;

[0007] The top of the frame is equipped with a lifting plate and a drive unit for moving the lifting plate up and down; the integrated air circuit module includes a connecting plate and multiple air circuit channels disposed on the connecting plate, and the air circuit channels form multiple first interfaces on the lower surface of the connecting plate.

[0008] The upper clamp includes a top plate and multiple test rods connected to the top plate and extending downward. The upper surface of the top plate is provided with multiple second interfaces corresponding to the first interface, and the lower surface is provided with multiple third interfaces corresponding to the second interfaces and connected to each other. The lower end of the test rod forms a docking end that connects to the test channel of the automotive thermal management module. The test rod is provided with a fourth interface and a first air inlet provided on the docking end and connected to the fourth interface. The fourth interfaces on the multiple test rods correspond to the multiple third interfaces and are connected through pipelines.

[0009] The locking assembly includes a locking block disposed on the connecting plate, a locking rod fixed to the top plate and extending upward, and a driving member for driving the locking block to move laterally relative to the connecting plate, so that the locking block moves between a first position that pushes the locking rod upward to lock the top plate below the connecting plate and a second position that avoids the locking rod to allow the top plate and the connecting plate to be separated vertically.

[0010] The lower clamp is mounted on the frame and is used to support the automotive thermal management module to be tested. After the lifting plate moves down a predetermined distance, it cooperates with the upper clamp to clamp the automotive thermal management module to be tested.

[0011] The electronic control module is used to control all valves on the automotive thermal management module under test.

[0012] Preferably, the upper surface of the locking block forms an inclined surface, and the locking block is provided with a circular hole extending downward from the inclined surface to its bottom surface, and a through groove connected to one side of the circular hole. The locking rod passes through the circular hole from bottom to top, and the side of the locking rod is provided with a clearance recess for avoiding the side wall of the through groove so that when the locking block moves from the second position to the first position, the locking rod can slide from the circular hole into the through groove and move away from the circular hole. The top of the clearance recess forms a pressing surface, and the pressing surface abuts against the inclined surface.

[0013] Preferably, a guide rail is provided on the connecting plate, the locking block is slidably mounted on the guide rail, and the driving component is a locking cylinder, the cylinder body of which is fixedly connected to the connecting plate and the telescopic rod is connected to the locking block.

[0014] Preferably, the test rod includes a fixed sleeve connected to the lower surface of the top plate and a movable rod. The movable rod passes through the fixed sleeve and can move relative to the fixed sleeve in the height direction. A first buffer spring is provided between the fixed sleeve and the movable rod. A limiting pin is provided on the fixed sleeve, and a limiting groove extending in the height direction is provided on the movable rod. The limiting pin passes through the limiting groove. The third interface and the first air inlet are both provided on the movable rod. A rubber gasket is provided at the mating end.

[0015] Preferably, a laterally extending linear guide rail is fixedly connected to the lower surface of the top plate, a slider is slidably mounted on the linear guide rail, a first push cylinder is mounted on the top plate to push the slider to reciprocate along the linear guide rail, and the top of the fixing sleeve of at least one test rod is connected to the slider.

[0016] Preferably, the upper clamp also includes a mounting frame connected to one side of the top plate and extending downward. The mounting frame is provided with a second push cylinder, a guide sleeve, a guide rod, and a mounting plate. The guide sleeve is fixed on the mounting frame, and the guide rod is movably inserted into the guide sleeve. The mounting plate is fixedly connected to the inner end of the guide rod. The cylinder body of the second push cylinder is fixed on the mounting frame, and a second buffer spring is provided between its telescopic rod and the mounting plate. A transverse push rod is fixed on the inner side of the mounting plate. A fifth interface is provided on the transverse push rod, which communicates with one of the third interfaces. A second air inlet is provided on the inner end face of the transverse push rod, which communicates with the fifth interface. The second push cylinder is used to push the second buffer spring inward so that the second air inlet of the transverse push rod moves inward and communicates with the channel on the side of the thermal management module of the vehicle under test.

[0017] Preferably, the upper clamp includes a pressure bar that is fixedly connected to the lower surface of the top plate and extends downward. The pressure bar is used to press onto the automotive thermal management module under test to cooperate with the lower clamp to clamp the automotive thermal management module under test.

[0018] Preferably, the integrated air circuit module also includes a crossbeam fixed to the side of the connecting plate. The crossbeam has an air inlet extending along its length and with both ends being blind ends. An air inlet nozzle connected to the air inlet and connected to an external air source is installed on the crossbeam. Multiple diversion holes are arranged along the length of the crossbeam, with one end of the diversion hole extending to the air inlet and the other end extending to the inner side of the crossbeam. Multiple connecting pipes are also provided between the crossbeam and the connecting plate. The multiple connecting pipes connect the multiple diversion holes to multiple first interfaces respectively. The air circuit channel consists of the inner cavity of the connecting pipe and the diversion holes corresponding to the connecting pipe. A control valve is also provided on the connecting pipe.

[0019] Preferably, the lower clamp includes a support base, multiple electrical plugs mounted on the support base for connecting to the automotive thermal management module under test, female terminals connected to the support base and electrically connected to the multiple electrical plugs, male terminals mounted on the frame and matching the female terminals, and a drive assembly for driving the male terminals to move up and down and laterally. The top of the support base forms a support surface for supporting the automotive thermal management module under test. Two positioning abutments and two positioning pressure seats are provided on the support surface. The two positioning abutments are fixedly connected to the support surface and are located on two adjacent sides of the support surface, respectively. The two positioning pressure seats are respectively arranged opposite to the two positioning abutments, and the positioning pressure seats are movably mounted on the support base. An elastic element is provided between the positioning pressure seats and the support base. The elastic element is used to push the positioning pressure seats toward the positioning abutments opposite to the positioning pressure seats.

[0020] Preferably, the lower clamp also includes a base plate fixedly fitted to the frame, a support seat located above the base plate, a lifting cylinder and a lateral thrust cylinder provided on the base plate, the cylinder body of the lifting cylinder being fixedly connected to the base plate and the telescopic rod being connected to the support seat; a downwardly extending protrusion is provided at the bottom of the support seat, the cylinder body of the lateral thrust cylinder is fixedly connected to the base plate, and a support block is connected to its telescopic rod, the lateral thrust cylinder being used to drive the support block to move laterally so that the support block is supported under the protrusion or separated from the protrusion; a buffer mechanism is also provided between the base plate and the support seat, the buffer mechanism including a crossbar fixedly connected to the support seat and a buffer damper installed on the base plate and located above the crossbar and matching the crossbar.

[0021] The testing device of this invention uses an upper clamp and a lower clamp to clamp the automotive thermal management module. Simultaneously, the test rods on the upper clamp can be aligned with and connected to the test channel on the automotive thermal management module. Test gas is delivered to each test rod through the integrated gas path module, enabling rapid testing of the automotive thermal management module and improving testing efficiency. Furthermore, after connecting the upper clamp to the integrated gas path module, a locking assembly quickly clamps and fixes the top plate of the upper clamp to the connecting plate of the integrated gas path module, achieving rapid installation and fixation of the upper clamp on the integrated gas path module. This improves testing efficiency while ensuring the sealing of the gas path between the integrated gas path module and the test rods, thereby improving testing accuracy. Attached Figure Description

[0022] 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 the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 for Figure 1 Assembly diagram of the upper and middle clamps and the integrated air circuit module;

[0025] Figure 3 This is a schematic diagram of the locking assembly of the present invention;

[0026] Figure 4 This is a schematic diagram showing the usage state of the locking component of the present invention;

[0027] Figure 5 This is a cross-sectional view of the test rod of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the clamp of the present invention;

[0029] Figure 7 This is a view of the present invention with another perspective;

[0030] Figure 8 This is a schematic diagram of the integrated gas path module of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the clamp of the present invention;

[0032] Figure 10 This is a view of the clamp from another perspective in this invention.

[0033] In the diagram: 10. Frame; 11. Lifting plate; 12. Cylinder; 13. Electrical control module; 20. Integrated air circuit module; 21. Connecting plate; 211. First interface; 22. Crossbeam; 221. Air inlet; 222. Air inlet; 223. Flow divider; 23. Control valve; 24. Connecting pipe; 30. Upper clamp; 31. Top plate; 311. Second interface; 312. Third interface; 32. Test rod; 3 21. Movable rod; 3211. Connecting end; 3212. First air inlet; 3213. Limiting slot; 322. Fixing sleeve; 323. Air nozzle; 3231. Fourth interface; 324. Limiting pin; 325. First buffer spring; 326. Slider; 327. Linear guide rail; 328. First push cylinder; 33. Pressure rod; 34. Lateral push rod; 341. Second push cylinder; 342. Second 343. Buffer spring; 344. Second air inlet; 345. Fifth interface; 35. Mounting bracket; 351. Guide sleeve; 352. Guide rod; 353. Mounting plate; 40. Lower clamp; 41. Support plate; 411. Positioning support; 412. Positioning pressure seat; 413. Spring; 42. Mounting plate; 421. Protrusion; 43. Base plate; 431. Support block; 432. Horizontal push cylinder; 433. Guide rod ; 434, crossbar; 435, buffer damper; 441, male terminal; 4411, horizontal cylinder; 4412, vertical cylinder; 442, female terminal; 443, electrical plug; 45, lifting cylinder; 51, locking rod; 511, clearance recess; 512, pressing surface; 53, locking block; 521, inclined surface; 522, round hole; 523, through groove; 53, locking cylinder; 54, guide rail.

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0038] like Figure 1-10The diagram shows a testing device for an automotive thermal management module according to the present invention. It includes a frame 10, an integrated air circuit module 20, an upper clamp 30, a lower clamp 40, and a locking assembly. A lifting plate 11 and a drive unit for moving the lifting plate 11 up and down are provided on the top of the frame 10. The drive unit is preferably a cylinder 12; however, in other embodiments, the drive unit can also be a hydraulic cylinder, a linear motor, or other mechanism capable of moving the lifting plate 11 up and down. The integrated air circuit module 20 includes a connecting plate 21 and a... Multiple air passages are placed on the connecting plate 21, and multiple first interfaces 211 are formed on the lower surface of the connecting plate 21. The upper clamp 30 includes a top plate 31 and multiple test rods 32 connected to the top plate 31 and extending downward. The upper surface of the top plate 31 is provided with second interfaces 311 corresponding one-to-one with the multiple first interfaces 211, and the lower surface of the top plate 31 is provided with multiple third interfaces 312 corresponding one-to-one with the second interfaces 311. It is possible that through holes are provided on the top plate 31, extending from its upper surface to its lower surface, so that the through holes... A second interface 311 is formed on the upper surface of the top plate 31, and a third interface 312 is formed on the lower surface of the top plate 31. A docking end 3211 is formed at the lower end of the test rod 32, which docks with the test channel of the vehicle thermal management module 90. An air nozzle 323 is provided on the test rod 32, and a fourth interface 3231 and a first air inlet 3212 are provided on the air nozzle 323. A channel is provided inside the test rod 32 to connect the fourth interface 3231 and the first air inlet 3212. The first air inlet 3212 is located at the docking end 3211. Above, the fourth interface 3231 on multiple test rods 32 is connected to multiple third interfaces 312 on the top plate 31 through pipelines, so that the first air inlets 3212 of multiple test rods 32 are connected to multiple air passages on the top plate 21 in a one-to-one correspondence. After the docking end 3211 of the test rod 32 is docked with the test channel of the vehicle thermal management module 90, the first air inlet 3212 is connected to the test channel of the vehicle thermal management module 90, so that the air passage can input test gas from the test rod 32 to the test channel of the vehicle thermal management module 90.The locking assembly includes a locking block 52 mounted on the connecting plate 21, a locking rod 51 fixed to the top plate 31 and extending upward, and a driving member. The driving member drives the locking block 52 to move laterally relative to the connecting plate 21, allowing the locking block 52 to move between a first position that pushes the locking rod 51 upward and a second position that avoids the locking rod 51. When the upper clamp 30 is connected to the integrated air circuit module 20, the upper clamp 30 is located below the integrated air circuit module 20. The locking rod 51 fixed to the top plate 31 passes upward through the connecting plate 21. The driving member pushes the locking block 52 to move laterally. When the locking block 52 is in the first position, the locking block 52 pushes the locking rod 51 upward, causing the top plate 31 to abut against the connecting plate 21. On the lower surface of 1, the locking assembly locks the top plate 31 and the connecting plate 21 together. At this time, there is a certain clamping force between the top plate 31 and the connecting plate 21, so that the first interface 211 and the second interface 311 are connected and connected. The top plate 31 and the connecting plate 21 jointly clamp the sealing rings at the first pair of interfaces 211 and the second pair of interfaces 311 to prevent air leakage at their joint. When it is necessary to remove the upper clamp 30 from the integrated air circuit module 20, the driving component drives the locking block 52 to move in the opposite direction in the lateral direction, so that the locking block 52 releases the upward pushing force on the locking rod 51 and avoids the locking rod 51. At this time, the locking rod 51 is separated from the locking block 52, so that the top plate 31 can be separated from the bottom of the connecting plate 21. The lower clamp 40 is mounted on the frame 10 and is located directly below the upper clamp 30. The lower clamp 40 is used to support the automotive thermal management module 90 to be tested. When the cylinder 12 drives the lifting plate 11 to move downward a predetermined distance, the upper clamp 30 moves downward a predetermined distance along with the lifting plate 11. The upper clamp 30 and the lower clamp 40 cooperate with each other to clamp the automotive thermal management module 90 to be tested. At the same time, the multiple test rods 32 on the upper clamp 30 are respectively connected to the multiple test channels of the automotive thermal management module 90. Then, the test gas is delivered to the multiple test channels of the automotive thermal management module 90 through the test rods 32 to perform a sealing test on the automotive thermal management module 90.

[0039] Compared to existing technologies, the testing device of this invention uses upper and lower clamps to clamp the automotive thermal management module. Simultaneously, the test rods on the upper clamp can be aligned with and connected to the test channel on the automotive thermal management module. Test gas is delivered to each test rod through the integrated gas path module, enabling rapid testing of the automotive thermal management module and improving testing efficiency. Furthermore, after connecting the upper clamp to the integrated gas path module, a locking assembly quickly clamps and fixes the top plate of the upper clamp to the connecting plate of the integrated gas path module, achieving rapid installation and fixation of the upper clamp on the integrated gas path module. This improves testing efficiency while ensuring the sealing of the gas path between the integrated gas path module and the test rods, thereby improving testing accuracy.

[0040] See Figure 2 , 3As shown in Figure 4, in a preferred embodiment, the upper surface of the locking block 52 forms an inclined surface 521. The locking block 52 is provided with a circular hole 522 extending downward from the inclined surface 521 to its bottom surface, and a through groove 523 connected to one side of the circular hole 522. The locking rod 51 passes through the circular hole 522 from bottom to top. The side of the locking rod 51 is provided with a clearance recess 511 for avoiding the side wall of the through groove 523 so that when the locking block 52 moves from the second position to the first position, the locking rod 51 can slide from the circular hole 522 into the through groove 523 and move away from the circular hole 522. A pressing surface 512 is formed at the top of the clearance recess 511, and the pressing surface 512 abuts against the inclined surface 521. When the upper clamp 30 is installed, the locking block 52 is in the second position, and the locking rod 51 passes upward through the round hole 522, so that the pressing surface 512 is placed above the inclined surface 521. Then, the driving component is activated to drive the locking block 52 to move laterally, so that the locking block 52 moves to the second position. While the locking block 52 moves, the locking rod 51 slides from the round hole 522 into the through groove 523. The inclined surface 521 continuously pushes the pressing surface 512 upward, and then pushes the locking rod 51 upward, thereby pressing the top plate 31 upward so that the top plate 31 presses the lower surface of the connecting plate 21 upward, so that the first interface 211 and the second interface 311 are sealed and engaged, and at the same time, the upper clamp 30 is fixedly connected to the integrated air circuit module 20. A guide rail 54 is also provided on the connecting plate 21. The locking block 52 is slidably mounted on the guide rail 54. The driving component is preferably a locking cylinder 53. The cylinder body of the locking cylinder 53 is fixedly connected to the connecting plate 21, and the telescopic rod is connected to the locking block 52. The locking block 52 is driven to move laterally by the locking cylinder 53, so as to lock or release the locking block 52 on the locking rod 51. The guide rail 54 is used to guide the sliding of the locking block 52 to prevent the locking block 52 from swaying when moving laterally, so as to ensure the fitting accuracy of the top plate 31 and the connecting plate 21 after being locked and fixed.

[0041] See Figure 5 , 6As shown, in another preferred embodiment, the test rod 32 is configured as a retractable elastic structure to prevent air leakage at the connection point when the test rod 32 is mated with the vehicle thermal management module 90, and to avoid damage to the surface of the vehicle thermal management module 90 caused by the rigid fit between the test rod 32 and the vehicle thermal management module 90. Specifically, the test rod 32 includes a fixed sleeve 322 connected to the lower surface of the top plate 31 and a movable rod 321. The movable rod 321 passes through the fixed sleeve 322 and can move relative to the fixed sleeve 322 in the height direction. A first buffer spring 325 is provided between the fixed sleeve 322 and the movable rod 321 to fix the connection. A limiting pin 324 is provided on the sleeve 322, and a limiting groove 3213 extending along the height direction is provided on the movable rod 321. The limiting pin 324 passes through the limiting groove 3213. The fourth interface 3231 and the first air inlet 3212 are both provided on the movable rod 321. In addition, a rubber gasket 3213 is provided at the docking end 3211. The rubber gasket 3213 is used to make contact with the surface of the vehicle thermal management module 90 when the docking end 3211 docks with the vehicle thermal management module 90. After the rubber gasket 3213 is deformed by compression, it ensures that the docking end 3211 and the vehicle thermal management module 90 are in sealed contact. When the test rod 32 moves downward and contacts the automotive thermal management module 90, the movable rod 321 is subjected to an upward compressive force, which compresses the first buffer spring 325. This prevents a rigid impact between the mating end 3211 of the test rod 32 and the automotive thermal management module 90, providing better protection for the module. The compressed first buffer spring 325 generates significant elastic stress, pushing the movable rod 321 downward and pressing it tightly against the automotive thermal management module 90. The rubber gasket 3213 fully deforms, ensuring a good seal between the mating end 3211 and the automotive thermal management module 90. (See also...) Figure 7 As shown, a laterally extending linear guide rail 327 is fixedly connected to the lower surface of the top plate 31. A slider 326 is slidably mounted on the linear guide rail 327. A first push cylinder 328 is mounted on the top plate 31 to push the slider 326 to reciprocate along the linear guide rail 327. The top of the fixing sleeve 322 of at least one test rod 32 is connected to the slider 326. By using the first push cylinder 328 to push the slider 326 to move, the test rod 32 connected to the slider 326 moves accordingly. In this way, the position of the test rod 32 can be adjusted according to the position of the channel to be tested on the automotive thermal management module 90, thereby matching the testing of different models of automotive thermal management modules 90 and increasing the applicability of the testing device.

[0042] Referring to Figure 7, the upper clamp 30 also includes a mounting bracket 35 connected to one side of the top plate and extending downward. The mounting bracket 35 is equipped with a second push cylinder 341, a guide sleeve 351, a guide rod 352, and a mounting plate 353. The guide sleeve 351 is fixed to the mounting bracket 35, and the guide rod 352 is movably inserted into the guide sleeve 351. The mounting plate 353 is fixedly connected to the inner end of the guide rod 352. The cylinder body of the second push cylinder 341 is fixed to the mounting bracket 35, and a second buffer spring 342 is provided between its telescopic rod and the mounting plate 353. A transverse push rod 34 is fixed to the inner side of the mounting plate 353. The transverse push rod 34 is provided with a fifth interface 344 communicating with one of the third interfaces 312. A second air inlet 343 communicating with the fifth interface 344 is provided on the inner end face of the transverse push rod 34. The second push cylinder 341 is used to push the second buffer spring 342 inward so that the second air inlet 343 of the transverse push rod 34 moves inward and connects with the channel on the side of the vehicle thermal management module 90 under test. Some vehicle thermal pipeline modules 90 have channels on their sides. In the above structure, a mounting bracket 35 is configured for the upper clamp 30, and a transverse push rod 34 is set on the mounting bracket. After the upper clamp 30 and the lower clamp 40 clamp and fix the vehicle thermal pipeline module 90, the second push cylinder 341 is activated so that the second air inlet 343 on the transverse push rod 34 connects with the channel under test on the side of the vehicle thermal pipeline module 90 to perform a sealing test on the channel on the side of the vehicle thermal pipeline module 90. After the upper clamp 30 is fixed to the integrated air circuit module 20, the transverse push rod 34 is connected to the integrated air circuit module 20 through the fifth interface 344 on the transverse push rod 34.

[0043] See Figure 7 As shown, the upper clamp 30 also includes a pressure rod 33 that is fixedly connected to the lower surface of the top plate 31 and extends downward. After the upper clamp 30 moves downward a predetermined distance with the lifting plate 11, the lower end of the pressure rod 33 on the upper clamp 30 presses onto the vehicle thermal management module under test, and works with the lower clamp 40 to clamp the vehicle thermal management module 90 under test to prevent the vehicle thermal management module 90 under test from shifting.

[0044] See Figure 8As shown, the integrated air circuit module 20 also includes a crossbeam 22 fixed to the side of the connecting plate 21. The crossbeam 22 has an air inlet 222 extending along the length of the crossbeam 22 and having blind ends at both ends. An air inlet nozzle 221 connected to the air inlet 222 and connected to an external air source is installed on the crossbeam 22. Multiple diversion holes 223 are arranged along the length of the crossbeam 20. One end of the diversion hole 223 extends to the air inlet 222 and the other end extends to the inner side surface of the crossbeam 22. Multiple connecting pipes 24 are also provided between the crossbeam 22 and the connecting plate 21. The multiple connecting pipes 24 respectively connect the multiple diversion holes 223 to multiple first interfaces 211. The air circuit channel is composed of the inner cavity of the connecting pipe 24 and the diversion holes 223 corresponding to the connecting pipe 24. A control valve 23 is also provided on the connecting pipe 24. A crossbeam 22 is provided on the side of the connecting plate 21, and the air inlet 221 of the crossbeam 22 is connected to an external air source. The air inlet 222 is separated by multiple diversion holes 223, thereby enabling air supply from one air source to multiple air passages to perform a sealing test on multiple test passages on the automotive thermal management module 90. Alternatively, a crossbeam 22 can be provided on each side of the connecting plate 21, and multiple first interfaces 211 can be arranged on both sides of the connecting plate 21. This can form multiple air passages on the integrated air passage module 20, allowing for simultaneous testing of a larger number of test passages on the automotive thermal management module 90. Thus, the testing of all test passages of the automotive thermal management module 90 can be completed in a single clamping process.

[0045] Figure 9 , 10The structure of the lower clamp 40 of the present invention is shown. The lower clamp 40 includes a support base, a plurality of electrical plugs 443 mounted on the support base for connection with the vehicle thermal management module 90 under test, a female terminal 442 connected to the support base and electrically connected to the plurality of electrical plugs 443, a male terminal 441 mounted on the frame 10 and matched with the female terminal 442, and a drive assembly for driving the male terminal 441 to move up and down and laterally. The drive assembly includes a horizontal cylinder 4411 and a vertical cylinder 4412. The male terminal 441 is mounted on the telescopic rod of the horizontal cylinder 4411, and the cylinder body of the horizontal cylinder 4411 is mounted on the telescopic rod of the vertical cylinder 4412. The vertical cylinder 4412 drives the male terminal 441 to move up and down, and the horizontal cylinder 4411 drives the male terminal 441 to move horizontally to approach or move away from the female terminal 442. The drive assembly drives the male terminal 441 to connect with the female terminal 442 to connect the vehicle thermal management module 90 under test to the test circuit. The support base specifically includes a support plate 41 and a mounting plate 42 located below the support plate 41. These two plates are spaced a certain distance apart in the height direction and are fixedly connected together by a vertical beam to form the support base. The top of the support base forms a support surface, i.e., the upper surface of the support plate 41 forms the support surface, which supports the vehicle thermal management module 90 under test. Two positioning abutments 411 and two positioning pressure seats 412 are provided on the support surface. The two positioning abutments 411 are respectively fixed to the support surface and located on two adjacent sides of the support surface. The two positioning pressure seats 412 are respectively located on the other two adjacent sides of the support surface, and are respectively positioned opposite to the two positioning abutments 411. Both positioning pressure seats 412 are movably mounted on the support base. A spring 413 is provided between the support base and the positioning base 412. The spring 413 provides an elastic stress that constantly pushes the positioning base 412 towards the positioning abutment 411 opposite it. After the vehicle thermal management module 90 is placed on the support surface, the vehicle thermal management module 90 is placed in the space enclosed by the two positioning abutments 411 and the two positioning bases 412. The elastic stress provided by the spring 413 clamps the vehicle thermal management module 90 with the positioning base 412 and the positioning abutment 411 to prevent its lateral movement. It should be noted that the spring 413 can be replaced by an elastic rubber block or other elastic element, as long as it can provide an elastic stress to push the positioning base 412 towards the positioning abutment 411.The lower clamp 40 also includes a base plate 43 fixedly fitted with the frame 10. A support base is located above the base plate 43. A lifting cylinder 45 and a horizontal thrust cylinder 432 are provided on the base plate 43. The cylinder body of the lifting cylinder 45 is fixedly connected to the base plate 43, and the telescopic rod is connected to the support base. A downwardly extending protrusion 421 is provided at the bottom of the support base. The cylinder body of the horizontal thrust cylinder 432 is fixedly connected to the base plate 43, and a support block 431 is connected to its telescopic rod. The horizontal thrust cylinder 432 is used to drive the support block 431 to move laterally so that the support block 431 is supported under the protrusion 421 or separated from the protrusion 421. The lifting cylinder 45 can drive the support block 431 to move laterally. The support moves up and down to adjust the height of the support surface, making it suitable for transferring the automotive thermal management module 90 from the conveying mechanism to the support surface. Before testing, the horizontal push cylinder 432 pushes the support block 431 to be placed under the protrusion 421 to support the protrusion 421, so that the support seat and the base plate 43 remain relatively fixed. The upper clamp 30 and the lower clamp 40 are used to clamp the automotive thermal management module 90 for testing. When the test is completed, the horizontal push cylinder 432 drives the support block 431 to separate from the protrusion 421. At this time, the lifting cylinder 45 can drive the support seat to move down to a position at the same height as the conveying mechanism, so as to transfer the automotive thermal management module 90 to the conveying mechanism. A buffer mechanism is also provided between the base plate 43 and the support seat. The buffer mechanism includes a crossbar 434 fixedly connected to the support seat and a buffer damper 435 installed on the base plate 43 and located above the crossbar 434 and matched with the crossbar 434. A guide rod 433 is provided on the support seat and passes through the base plate 43. The crossbar 434 is connected to the guide rod 433. After the vehicle thermal management module 90 is transferred from the conveying mechanism to the support surface, the lifting cylinder 45 drives the support seat to move upward. The crossbar 434 moves upward with the lifting seat. The crossbar 434 is blocked by the buffer damper 435, so that the lifting seat rises slowly, reducing the impact of the vibration generated during the rising process on the vehicle thermal management module 90.

[0046] See Figure 1As shown, the frame 10 of the testing device of the present invention is also equipped with an electronic control module 13. The electronic control module 13 is used to control all valves on the thermal management module of the vehicle under test. Furthermore, all power supply and control of the testing device are implemented through the electronic control module 13. For example, multiple electrical plugs 443 on the lower clamp 40 are connected to the electronic control module 13, multiple control valves 23 on the integrated air circuit module 20 are connected to the electronic control module 13, and the cylinders on the testing device are all controlled by the electronic control module 13. All power supplies for the testing device of the present invention are connected to the same power supply segment, and then connected to the electronic control module 13 through terminals. The electronic control module 13 is connected to an external power source, providing power to the entire testing device, which facilitates the maintenance of the entire testing device. The electronic control module 13 communicates with all components, unifying the communication interface and communication method. Thus, the electronic control module 13 enables unified control of different wiring and communication methods, transforming a complex control process into a simple one, making it convenient to use.

[0047] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A testing device for automotive thermal management modules, characterized in that, Includes a frame, an integrated pneumatic circuit module mounted on the frame, an upper clamp, a lower clamp, a locking assembly, and an electrical control module; The top of the frame is equipped with a lifting plate and a drive unit for moving the lifting plate up and down; the integrated air circuit module includes a connecting plate and multiple air circuit channels disposed on the connecting plate, and the air circuit channels form multiple first interfaces on the lower surface of the connecting plate. The upper clamp includes a top plate and multiple test rods connected to the top plate and extending downward. The upper surface of the top plate is provided with multiple second interfaces corresponding to the first interface, and the lower surface is provided with multiple third interfaces corresponding to the second interfaces and connected to each other. The lower end of the test rod forms a docking end that connects to the test channel of the automotive thermal management module. The test rod is provided with a fourth interface and a first air inlet provided on the docking end and connected to the fourth interface. The fourth interfaces on the multiple test rods correspond to the multiple third interfaces and are connected through pipelines. The locking assembly includes a locking block disposed on the connecting plate, a locking rod fixed to the top plate and extending upward, and a driving member for driving the locking block to move laterally relative to the connecting plate, so that the locking block moves between a first position that pushes the locking rod upward to lock the top plate below the connecting plate and a second position that avoids the locking rod to allow the top plate and the connecting plate to be separated vertically. The lower clamp is mounted on the frame and is used to support the automotive thermal management module to be tested. After the lifting plate moves down a predetermined distance, it cooperates with the upper clamp to clamp the automotive thermal management module to be tested. The electronic control module is used to control all valves on the automotive thermal management module under test; The upper surface of the locking block forms an inclined surface. The locking block is provided with a circular hole extending downward from the inclined surface to its bottom surface and a through groove connected to one side of the circular hole. The locking rod passes through the circular hole from bottom to top. The side of the locking rod is provided with a clearance recess for avoiding the side wall of the through groove so that when the locking block moves from the second position to the first position, the locking rod can slide from the circular hole into the through groove and move away from the circular hole. The top of the clearance recess forms a pressing surface, which abuts against the inclined surface. The test rod includes a fixed sleeve connected to the lower surface of the top plate and a movable rod. The movable rod passes through the fixed sleeve and can move relative to the fixed sleeve in the height direction. A first buffer spring is provided between the fixed sleeve and the movable rod. A limiting pin is provided on the fixed sleeve, and a limiting groove extending in the height direction is provided on the movable rod. The limiting pin passes through the limiting groove. The third interface and the first air inlet are both provided on the movable rod. A rubber gasket is provided at the mating end. The integrated air circuit module also includes a crossbeam fixed to the side of the connecting plate. The crossbeam has an air inlet extending along its length and with both ends being blind ends. An air inlet nozzle connected to the air inlet and connected to an external air source is installed on the crossbeam. Multiple diversion holes are arranged along the length of the crossbeam, with one end of the diversion hole extending to the air inlet and the other end extending to the inner side of the crossbeam. Multiple connecting pipes are also provided between the crossbeam and the connecting plate. The multiple connecting pipes connect the multiple diversion holes to multiple first interfaces. The air circuit channel consists of the inner cavity of the connecting pipe and the diversion holes corresponding to the connecting pipe. A control valve is also provided on the connecting pipe.

2. The testing apparatus for an automotive thermal management module as described in claim 1, characterized in that, A guide rail is provided on the connecting plate, and the locking block is slidably mounted on the guide rail. The driving component is a locking cylinder, the cylinder body of which is fixedly connected to the connecting plate, and the telescopic rod is connected to the locking block.

3. The testing apparatus for an automotive thermal management module as described in claim 1, characterized in that, A horizontally extending linear guide rail is fixedly connected to the lower surface of the top plate, and a slider is slidably mounted on the linear guide rail. A first push cylinder is installed on the top plate to push the slider to reciprocate along the linear guide rail. The top of the fixing sleeve of at least one test rod is connected to the slider.

4. The testing apparatus for an automotive thermal management module as described in claim 1, characterized in that, The upper clamp also includes a mounting bracket connected to one side of the top plate and extending downward. The mounting bracket is equipped with a second push cylinder, a guide sleeve, a guide rod, and a mounting plate. The guide sleeve is fixed on the mounting bracket, and the guide rod is movably inserted into the guide sleeve. The mounting plate is fixedly connected to the inner end of the guide rod. The cylinder body of the second push cylinder is fixed on the mounting bracket, and a second buffer spring is provided between its telescopic rod and the mounting plate. A transverse push rod is fixed on the inner side of the mounting plate. A fifth interface is provided on the transverse push rod, which communicates with one of the third interfaces. A second air inlet is provided on the inner end face of the transverse push rod, which communicates with the fifth interface. The second push cylinder is used to push the second buffer spring inward so that the second air inlet of the transverse push rod moves inward and communicates with the channel on the side of the thermal management module of the vehicle under test.

5. The testing apparatus for an automotive thermal management module as described in claim 1, characterized in that, The upper clamp includes a pressure bar that is fixedly connected to the lower surface of the top plate and extends downward. The pressure bar is used to press on the automotive thermal management module under test in order to cooperate with the lower clamp to clamp the automotive thermal management module under test.

6. The testing apparatus for an automotive thermal management module as described in claim 1, characterized in that, The lower fixture includes a support base, multiple electrical plugs mounted on the support base for connecting to the automotive thermal management module under test, female terminals connected to the support base and electrically connected to the multiple electrical plugs, male terminals mounted on the frame and matching the female terminals, and a drive assembly for driving the male terminals to move up and down and laterally. The top of the support base forms a support surface for supporting the automotive thermal management module under test. Two positioning abutments and two positioning pressure seats are provided on the support surface. The two positioning abutments are fixedly connected to the support surface and are located on two adjacent sides of the support surface, respectively. The two positioning pressure seats are respectively arranged opposite to the two positioning abutments, and the positioning pressure seats are movably mounted on the support base. An elastic element is provided between the positioning pressure seats and the support base. The elastic element is used to push the positioning pressure seats toward the positioning abutments opposite to the positioning pressure seats.

7. The testing apparatus for an automotive thermal management module as described in claim 6, characterized in that, The lower clamp also includes a base plate that is fixedly fitted to the frame. A support base is located above the base plate. A lifting cylinder and a lateral thrust cylinder are installed on the base plate. The cylinder body of the lifting cylinder is fixedly connected to the base plate, and the telescopic rod is connected to the support base. A downwardly extending protrusion is provided at the bottom of the support base. The cylinder body of the lateral thrust cylinder is fixedly connected to the base plate, and a support block is connected to its telescopic rod. The lateral thrust cylinder is used to drive the support block to move laterally so that the support block is supported under the protrusion or separated from the protrusion. A buffer mechanism is also provided between the base plate and the support base. The buffer mechanism includes a crossbar fixedly connected to the support base and a buffer damper installed on the base plate and located above the crossbar and matched with the crossbar.

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