Radiator performance detection device and detection method

Abstract

The invention relates to the technical field of radiator performance detection, and discloses a radiator performance detection device and method, and the device comprises a detection pool, a first air supply pipeline, an inflation connector, a water supply pipeline and a water outlet pipeline. A filter is arranged at the end, located in the detection water pool, of the water outlet pipeline, a circulating pump is arranged on the water outlet pipeline, and when the visual detection sensor detects that the turbidity of the water body exceeds a preset threshold value, the controller conducts filtering and water changing on the water body in the detection water pool by starting the water supply pipeline and the water outlet pipeline. According to the invention, the visual detection sensor is movable and liftable, full-dimensional detection of the radiator is realized, and the detection coverage range is more comprehensive; the special gas supply pipeline is matched with the sealing joint to guarantee stable supply of detection gas; automatic monitoring and circulating filtration of the water turbidity are linked, so that the detected water quality can be maintained without manual operation, and the visual detection accuracy is guaranteed; by matching with the filter, the water purification effect is stable, and equipment maintenance is more convenient.

Description

Technical Field

[0001] This invention relates to the field of radiator performance testing technology, and specifically to a radiator performance testing device and testing method. Background Technology

[0002] Radiators undergo performance testing before leaving the factory, with airtightness being a critical factor. Failure to meet airtightness standards can lead to oil leaks and air ingress, directly compromising heat dissipation efficiency (oil leakage / air contamination significantly reduces heat exchange capacity). Oil leaks can also cause transformer insulation failures and fires, while air ingress accelerates oil aging, impacting equipment lifespan. Nitrogen-filled leak testing ensures no leaks, guaranteeing leak-free and reliable long-term operation – the foundation for stable heat dissipation performance.

[0003] The prior art provides a radiator performance testing device, application number CN202510565043.2, which includes a metal box; the upper end of the inner side of the metal box is provided with a circular hole, and a cylindrical outer cover is rotatably connected to the inner side of the circular hole. The inner side of the cylindrical outer cover is provided with an electrically controlled telescopic rod one and an electrically controlled telescopic rod two. A programmable dynamic heat source module is installed at the telescopic end of the electrically controlled telescopic rod two. A base is magnetically adsorbed at the bottom of the inner side of the pull-out cover, and long screws are provided at both ends of the upper surface of the base. This radiator performance testing method solves the core problems of lack of dynamic response, insufficient micro-scale detection accuracy, and poor environmental simulation capability in the prior art through the integrated innovation of dynamic thermal excitation loading, multi-sensor fusion detection, environmental simulation cavity, and simulation-measurement collaborative algorithm, which significantly improves the accuracy, efficiency, and operating condition coverage of radiator performance testing.

[0004] However, existing technologies, especially this particular solution, still have the following problems:

[0005] Existing technologies only focus on dynamic detection and environmental simulation of radiator thermal performance, without structural adaptation for the core process of radiator airtightness water immersion leak detection. They lack the ability to visually identify underwater bubbles and locate leaks, and therefore cannot complete the detection of the key safety indicator of radiator sealing performance.

[0006] When existing technical solutions are applied to water immersion leak detection scenarios, the water being tested is easily made turbid due to the accumulation of impurities, making it impossible to automatically monitor the turbidity of the water and trigger filtration and water replacement. Manual visual inspection or simple visual inspection is prone to missing tiny leaks, making it difficult to guarantee the accuracy of the detection.

[0007] Existing detection methods are relatively limited in scope, unable to control pressure within the radiator cavity or monitor minute leaks. They can only judge performance through thermal signals, failing to accurately identify minute airtight leaks, and cannot achieve linkage between flow data and visual inspection, resulting in insufficient leak location accuracy. Summary of the Invention

[0008] The purpose of this invention is to provide a technical solution to address the problems in the prior art mentioned in the background section.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A radiator performance testing device, comprising:

[0011] The test pool has a movable track support on its upper edge, and a walking base is mounted on the movable track support. The visual inspection sensor is mounted on the walking base in an adjustable manner. Driven by the walking base, the visual inspection sensor moves on the movable track support. The visual inspection sensor is used to perform multi-directional and multi-angle visual inspection of the radiator during the test.

[0012] Gas supply pipeline 1 and gas filling connector. Gas supply pipeline 1 is connected to the medium connector of the radiator through the gas filling connector, and is used to supply the test gas required for testing the radiator.

[0013] The system includes a water supply pipe and an outlet pipe. The outlet pipe is equipped with a filter with multiple detachable filter plates at one end inside the testing water tank. A circulation pump is installed on the outlet pipe. When the visual detection sensor detects that the turbidity of the water exceeds the preset threshold, the controller starts the water supply pipe and the outlet pipe to filter and replace the water inside the testing water tank.

[0014] Preferably, the gas supply pipeline is equipped with a pressure monitoring and control valve group, which includes a pressure gauge, a pressure sensor and an electromagnetic regulating valve, configured to introduce detection gas into the radiator under test and realize closed-loop pressure control; the pressure monitoring and control valve group also includes a flow detection unit installed on the gas supply pipeline, which is configured to detect changes in gas flow caused by leakage in the radiator under test.

[0015] Preferably, the pressure monitoring and control valve group is also connected to an air supply pipe two. The pressure monitoring and control valve group is also configured to, after the test is completed, introduce dry compressed air into the radiator to be tested through the air supply pipe two, and lift the radiator above the water surface with the help of the hoisting mechanism to achieve the blowing and drying of the radiator's inner cavity and surface.

[0016] Preferably, the bottom of the testing pool is provided with a workpiece support and a lifting push rod. The workpiece support is used to place the radiator to be tested and can adjust the immersion depth of the radiator to be tested. The top of the telescopic rod of the lifting push rod is equipped with a support base, which supports the bottom of the radiator. The lifting push rod can realize the lifting and lowering adjustment of the radiator through the support base. After the test is completed, the lifting push rod can also support the radiator above the liquid surface.

[0017] Preferably, the inflation connector is connected to a flexible braided tube, which deforms during the radiator's lifting and lowering adjustment.

[0018] Preferably, it also includes a lifting bracket, which is connected to quick-release hooks by multiple ropes. The quick-release hooks can be detachably hung at multiple positions around the radiator, and the lifting bracket is equipped with lifting equipment.

[0019] Preferably, the walking base is equipped with a lifting rail via a connecting bracket, and the lifting rail is equipped with a driver for self-drive. The visual inspection sensor is installed on the slider of the lifting rail, and the lifting rail is used to realize the lifting and adjusting of the visual inspection sensor.

[0020] Preferably, the imaging area of ​​the visual inspection sensor includes the fin surface area and the fin root area.

[0021] The present invention also provides a method for testing the performance of a radiator, based on the aforementioned radiator performance testing device, comprising the following steps:

[0022] S1: Workpiece clamping and positioning;

[0023] Place the radiator to be tested on the workpiece support at the bottom of the testing pool;

[0024] S2: Inflation and pressure monitoring;

[0025] Test gas is introduced into the radiator through the gas supply pipeline, and the pressure control valve group regulates the gas pressure to the preset test pressure and maintains the pressure.

[0026] S3: Underwater immersion detection;

[0027] The radiator is lowered so that it is completely submerged below the surface of the test water tank;

[0028] S4: Multi-directional visual leak detection;

[0029] The walking base moves horizontally along the moving track support, driving the vision detection sensor to move up and down along the lifting track, enabling multi-directional and multi-angle shooting of the surface and root of the radiator fins, and real-time identification of bubble signals generated by leakage;

[0030] S5: Automatic water purification linkage;

[0031] The visual detection sensor collects water turbidity data in real time. When the turbidity exceeds the preset threshold, the controller starts the circulation pump. The water in the detection pool is filtered by the filter and the detachable filter plate and then discharged through the outlet pipe. At the same time, the water supply pipe replenishes water into the pool to complete the water circulation and purification.

[0032] S6: Leakage linkage detection;

[0033] The pressure measurement and control valve group links and compares the pressure change data and the flow change data of the flow detection unit with the bubble recognition data of the visual inspection sensor to determine whether the radiator is leaking and accurately locate the leak location.

[0034] S7: Workpiece lifting and drainage;

[0035] After the test is completed, lift the radiator as a whole above the water surface in the test pool and drain the residual water from the radiator cavity and surface.

[0036] S8: Linked purging and drying;

[0037] The pressure monitoring and control valve group switches the air path and introduces dry compressed air into the inner cavity of the radiator through the air supply pipeline to blow away the inner cavity and surface of the radiator, remove residual moisture, and achieve drying without drying.

[0038] S9: Disassembly and unloading;

[0039] The inspected radiator is lifted off the inspection station using a hoisting bracket.

[0040] Technical effects and advantages of the present invention: Compared with the prior art, the radiator performance testing device and method proposed in this invention have the following advantages:

[0041] This invention uses a testing pool as the basic testing platform. A walking base drives a visual inspection sensor to move along a track and adjusts its own height to complete multi-directional and multi-angle visual inspection of the radiator. The test gas is stably delivered to the inner cavity of the radiator through an air supply pipe and an air inlet connector, providing air source support for air tightness testing. The visual inspection sensor collects the turbidity of the water in real time. When the value exceeds a preset threshold, the controller automatically starts the circulation pump. In conjunction with the water supply pipe, the water outlet pipe, and a filter with a detachable filter plate, the water in the testing pool is automatically filtered and replaced.

[0042] The visual inspection sensor is movable and height-adjustable, enabling full-dimensional inspection of the radiator and providing more comprehensive coverage. A dedicated air supply pipeline and sealed connectors ensure a stable supply of inspection gas, guaranteeing high reliability. Automatic water turbidity monitoring and circulating filtration are linked, maintaining water quality without manual intervention and ensuring accurate visual inspection. The addition of a filter ensures stable water purification and easier equipment maintenance. Attached Figure Description

[0043] Figure 1 This is one of the structural schematic diagrams of the radiator performance testing device of the present invention;

[0044] Figure 2 This is a second schematic diagram of the structure of the radiator performance testing device of the present invention;

[0045] Figure 3This is a top view of the radiator performance testing device of the present invention;

[0046] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0047] Figure 5 This is a schematic cross-sectional view of the radiator performance testing device of the present invention;

[0048] Figure 6 This is a schematic diagram of the process flow for the radiator performance testing method of the present invention.

[0049] In the picture:

[0050] 11. Testing water tank; 12. Workpiece support; 13. Lifting support; 14. Quick-release hook; 15. Air supply pipeline one; 16. Water supply pipeline; 17. Inflation connector; 18. Air supply pipeline two; 19. Water outlet pipeline; 110. Pressure monitoring and control valve assembly; 111. Flexible braided pipe;

[0051] 21. Moving track support; 22. Vision inspection sensor; 23. Connecting bracket; 24. Walking base; 25. Lifting track; 26. Driver; 27. Lifting push rod; 28. Support base; 29. ​​Circulation pump; 210. Filter; 211. Removable filter plate; 212. Curved track. Detailed Implementation

[0052] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0053] The invention provides, for example Figures 1 to 5 As shown, a radiator performance testing device includes:

[0054] The test pool 11 has a movable track support 21 on its upper edge, and a walking base 24 is mounted on the movable track support 21. The visual inspection sensor 22 is mounted on the walking base 24 in an adjustable manner. The visual inspection sensor 22 moves on the movable track support 21 under the drive of the walking base 24. The visual inspection sensor 22 is used to perform multi-directional and multi-angle visual inspection of the radiator under test.

[0055] Gas supply pipe 15 and gas filling connector 17, the gas supply pipe 15 is connected to the medium connector of the radiator through the gas filling connector 17, for supplying the test gas required for testing to the radiator.

[0056] Water supply pipe 16 and water outlet pipe 19 are provided. One end of the water outlet pipe 19, located inside the detection water tank 11, is equipped with a filter 210 with multiple sets of detachable filter plates 211. A circulation pump 29 is installed on the water outlet pipe 19. When the visual detection sensor 22 detects that the turbidity of the water exceeds the preset threshold, the controller starts the water supply pipe 16 and the water outlet pipe 19 to filter and replace the water inside the detection water tank 11.

[0057] To establish a basic operational platform for radiator performance testing and achieve multi-directional visual leak detection and automatic water purification, a testing water tank 11, a mobile visual inspection component, and core components for air supply and water circulation filtration are configured. Using the testing water tank 11 as the basic testing platform, the visual inspection sensor 22 is driven by the walking base 24 to move along the moving track and coordinate with its own lifting and lowering to complete multi-directional, multi-angle visual inspection of the radiator. Testing gas is stably delivered to the radiator cavity through the air supply pipe 15 and the air inlet connector 17, providing air source support for airtightness testing. The visual inspection sensor 22 collects the water turbidity in real time; when the value exceeds a preset threshold, the controller automatically starts the circulation pump 29, which, together with the water supply pipe 16, the water outlet pipe 19, and the filter 210 with a detachable filter plate 211, achieves automatic filtration and replacement of the water in the testing water tank 11.

[0058] The visual inspection sensor 22 is movable and height-adjustable, enabling full-dimensional inspection of the radiator and providing a more comprehensive inspection coverage. The dedicated air supply pipeline and sealed joint ensure a stable supply of detection gas and high reliability of the detection gas source. The automatic monitoring of water turbidity and the linkage of circulation filtration maintain the water quality without manual operation, ensuring the accuracy of visual inspection. The filter 210 ensures stable water purification effect and makes equipment maintenance more convenient.

[0059] like Figure 1 and Figure 2 As shown, to accurately control the detection gas pressure and achieve closed-loop pressure monitoring, and to collaboratively determine the leakage status and locate the leak by utilizing gas flow detection and visual inspection, an integrated pressure monitoring and control valve assembly 110 is installed in the gas supply path. The pressure monitoring and control valve assembly 110 is installed on the gas supply pipeline 15. The pressure monitoring and control valve assembly 110 includes a pressure gauge, a pressure sensor, and a solenoid regulating valve, configured to introduce detection gas into the radiator under test and achieve closed-loop pressure control. The pressure monitoring and control valve assembly 110 also includes a flow detection unit installed on the gas supply pipeline 15. The flow detection unit is configured to detect changes in gas flow caused by leakage in the radiator under test. The gas flow detection and visual inspection work together to detect the performance of the radiator and simultaneously confirm the leak location.

[0060] To quickly remove residual moisture from the radiator after testing and eliminate the need for a separate drying process, a dedicated air path is added to introduce dry compressed air into the workpiece, achieving simultaneous purging and drying of the inner cavity and surface. The pressure control valve group 110 is also connected to an air supply pipe 18. The pressure control valve group 110 is further configured to, after testing, introduce dry compressed air into the radiator through the air supply pipe 18, and, in conjunction with a hoisting mechanism, lift the radiator above the water surface to achieve purging and drying of the radiator's inner cavity and surface.

[0061] To stably support the radiator under test and flexibly adjust the underwater immersion depth, and to lift the workpiece above the water surface for drainage after testing, a liftable workpiece support and adjustment structure is installed at the bottom of the pool. The bottom of the testing pool 11 is equipped with a workpiece support 12 and a lifting push rod 27. The workpiece support 12 is used to place the radiator under test and can adjust its immersion depth. A support base 28 is installed at the top of the telescopic rod of the lifting push rod 27, which supports the bottom of the radiator. The lifting push rod 27 can adjust the height of the radiator via the support base 28. After testing, the lifting push rod 27 can also support the radiator above the water surface.

[0062] like Figures 1 to 3 As shown, to ensure comprehensive coverage of all leak-prone areas of the radiator and effectively detect hidden locations such as the fin surface and roots, the visual inspection sensor 22 is equipped with multi-angle, full-area imaging capabilities. The visual inspection sensor 22 is configured to move along the movable track support 21 and the lifting track 25 to capture images of the radiator surface from multiple angles. The imaging area of ​​the visual inspection sensor 22 includes both the fin surface area and the fin root area.

[0063] like Figure 3 As shown, to ensure visual inspection covers the entire outer perimeter of the heat sink and eliminate blind spots, the movement path of the visual sensor is extended by the arc-shaped track 212, enabling omnidirectional, blind-spot-free imaging and inspection. The moving track bracket 21 includes the arc-shaped track 212, which allows the visual inspection sensor 22 to complete omnidirectional coverage imaging and inspection of the heat sink under the drive of the walking base 24.

[0064] like Figure 4 and Figure 5 As shown, to accommodate the positional changes during the radiator's lifting and lowering process and ensure that the air circuit connection remains sealed and the air supply is uninterrupted, a flexible braided pipe 111 that can adapt to changes in position is used at the inflation connector 17. The inflation connector 17 is connected to the flexible braided pipe 111, which continuously supplies gas to the interior of the radiator while deforming during the radiator's lifting and lowering adjustment.

[0065] To quickly clamp and transfer radiators of different specifications and improve workpiece loading and unloading efficiency, a lifting bracket 13 with quick-release hooks 14 is provided to meet the lifting and handling needs of various workpiece models. The lifting bracket 13 is connected to multiple ropes with quick-release hooks 14, which can be detachably hung at multiple positions around the radiator. Lifting equipment is installed on the lifting bracket 13 to facilitate the lifting and handling of different radiators.

[0066] To flexibly adjust the height of the visual inspection sensor 22 and adapt to the detection needs of heat sinks of different heights and specifications, a driveable lifting track and actuator are provided on the walking base 24. The walking base 24 is equipped with a lifting track 25 via a connecting bracket 23. A driver 26 for self-drive is provided on the lifting track 25. The visual inspection sensor 22 is mounted on a slider of the lifting track 25, which is used to adjust the height of the visual inspection sensor 22.

[0067] It should be added that a movable track support 21 is fixedly installed on the upper edge of the detection pool 11, and a walking base 24 is mounted on the movable track support 21. The walking base 24 has a built-in drive structure and a walking roller is mounted at the bottom. The walking roller rolls in cooperation with the track surface of the movable track support 21. The drive structure drives the walking roller to rotate, so that the walking base 24 moves smoothly along the movable track support 21, thereby driving the visual detection sensor 22 to achieve horizontal displacement adjustment.

[0068] To improve detection efficiency and simplify the structure, multiple sets of movable track supports 21 can be set up. Multiple sets of movable track supports 21 are arranged around the upper edge of the detection pool 11. Through the layout and cooperation of multiple sets of tracks, the visual inspection sensor 22 can take pictures of the heat sink from multiple directions and angles without the need for curved tracks, thus meeting the needs of full-dimensional inspection.

[0069] The movable track support 21 can preferably be equipped with an arc-shaped track 212. The function of the arc-shaped track 212 is only to optimize the movement path of the walking base 24, so that the walking base 24 moves more smoothly and without jamming when turning or changing direction. Only one set of vision inspection sensors 22 is required to complete the complete detection of the entire outer periphery of the radiator by relying on the arc-shaped track 212. There is no need to add multiple sets of sensors, which further simplifies the equipment structure and reduces costs.

[0070] like Figure 6 As shown, this invention outlines a standardized process for radiator performance testing, automating and coordinating each step to improve testing efficiency and result reliability, thus establishing standardized testing procedures. The invention also includes a radiator performance testing method based on the aforementioned radiator performance testing device, comprising the following steps:

[0071] S1: Workpiece clamping and positioning; Place the radiator to be tested on the workpiece support 12 at the bottom of the test pool 11, and complete the detachable connection between the radiator and the lifting support 13 through the quick-release hook 14; Seal and connect the air inlet 17 with the medium inlet of the radiator, so that the flexible braided pipe 111 connects the air supply pipe and the inner cavity of the radiator.

[0072] S2: Inflation and Pressure Monitoring; Test gas is introduced into the radiator through the gas supply pipe 15, and the pressure control valve group 110 regulates the gas pressure to the preset test pressure and maintains the pressure; The pressure sensor monitors the pressure inside the radiator cavity in real time, and the flow detection unit collects the gas flow rate change data synchronously.

[0073] S3: Underwater immersion detection; The lifting push rod 27 drives the radiator to descend through the support base 28, so that the radiator is completely immersed below the liquid surface of the detection pool 11, and the detection posture is stable.

[0074] S4: Multi-directional visual leak detection; The walking base 24 moves horizontally along the moving track bracket 21, and the driver 26 drives the visual detection sensor 22 to move up and down along the lifting track 25. Together with the arc track 212, it realizes multi-directional and multi-angle shooting of the surface and root of the heat sink fins, and identifies the bubble signal generated by the leak in real time.

[0075] S5: Automatic water purification linkage; Visual detection sensor 22 collects water turbidity data in real time. When the turbidity exceeds the preset threshold, the controller starts the circulation pump 29. The water in the detection pool 11 is filtered by filter 210 and detachable filter plate 211 and discharged through the outlet pipe 19. At the same time, the water supply pipe 16 replenishes water into the pool to complete the water circulation and purification.

[0076] S6: Leakage linkage judgment; The pressure measurement and control valve group 110 compares the pressure change data and the flow change data of the flow detection unit with the bubble recognition data of the visual detection sensor 22 to determine whether the radiator is leaking and accurately locate the leak location.

[0077] S7: Workpiece lifting and drainage; After the inspection is completed, the lifting push rod 27 drives the support base 28 to rise, lifting the radiator as a whole to above the liquid level of the test water tank 11, and draining the residual water in the radiator cavity and on the surface.

[0078] S8: Linked purging and drying; Pressure control valve group 110 switches the air path and introduces dry compressed air into the radiator cavity through air supply pipe 2 18 to purge the radiator cavity and surface, remove residual moisture, and achieve drying without drying.

[0079] S9: Disassembly and unloading; disconnect the air inlet connector 17 from the radiator, release the quick-release hook 14, and lift the tested radiator away from the testing station using the lifting bracket 13 to proceed to the next performance testing process.

[0080] In summary, the present invention also has the following combined effects:

[0081] This device uses the test tank 11 as the test carrier. The visual inspection sensor 22 is driven by the moving track support 21 and the lifting track 25 to complete the multi-directional and multi-angle visual leak detection of the radiator. The first air supply pipe 15 is equipped with a pressure monitoring and control valve group 110 to realize the pressure control of the gas in the radiator cavity and the monitoring of leakage flow. The flow data and the visual inspection signal are linked to complete the leak judgment and leak point location. The visual inspection sensor 22 monitors the turbidity of the water in real time. When the turbidity exceeds the standard, the water circulation component is automatically triggered to complete the filtration and water replacement to ensure the quality of the test water. The bottom lifting push rod 27 and the support seat 28 can adjust the immersion depth of the radiator. After the test, the workpiece is lifted and drained. The flexible braided pipe 111 of the air inlet 17 deforms with the rise and fall of the radiator to continuously ensure the air supply for sealing. After the test is completed, dry compressed air is introduced through the second air supply pipe 18 to realize the linkage purging and drying of the radiator. The whole set of devices, combined with the quick-release hoisting structure, completes the fully automated linkage operation of clamping, pressure holding, leak detection, purification, judgment, lifting, drying and unloading according to the standardized process.

[0082] The visual inspection sensor 22 is movable, height-adjustable, and adaptable to the curved track 212, fully covering the surface and hidden areas of the radiator fins, eliminating blind spots and improving leak detection integrity. Pressure closed-loop control, combined with flow and visual dual-dimensional detection, accurately identifies minute leaks and locates leak points, significantly reducing the false negative rate and improving the accuracy of airtightness testing. Automatic water turbidity monitoring and circulating filtration are linked to continuously maintain the clarity of the tested water, eliminating the need for manual water changes and ensuring the stability of visual inspection. Post-inspection purging and drying eliminates the need for a separate drying process, preventing residual moisture from damaging the radiator's paint film, while also reducing procedures and improving inspection efficiency. The height-adjustable support structure flexibly adjusts the radiator immersion depth, adapting to various workpiece sizes; it automatically lifts and drains after inspection, simplifying the operation process. The flexible braided pipe 111 adapts to the radiator's height and deformation, maintaining a sealed air supply throughout, ensuring the continuity and stability of pressure testing. The quick-release hook 14, in conjunction with the lifting bracket 13, enables rapid clamping and loading / unloading of the radiator, adapting to batch inspection of multiple workpiece models and improving operational efficiency. The automated interconnection and linkage of various structural units form a standardized testing process, reducing manual intervention and improving testing efficiency and result reliability.

[0083] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A radiator performance testing device, characterized in that, include: The test pool (11) is provided with a movable track support (21) on the upper edge of the test pool (11). A walking base (24) is provided on the movable track support (21). The visual inspection sensor (22) is mounted on the walking base (24) in an adjustable manner. The visual inspection sensor (22) moves on the movable track support (21) under the drive of the walking base (24). The visual inspection sensor (22) is used to perform multi-directional and multi-angle visual inspection on the radiator under inspection. Gas supply pipe 1 (15) and gas filling connector (17), the gas supply pipe 1 (15) is connected to the medium connector of the radiator through the gas filling connector (17) for supplying the test gas required for the test to the radiator; Water supply pipe (16) and water outlet pipe (19) are provided. The water outlet pipe (19) is located inside the detection pool (11) and is equipped with a filter (210) with multiple sets of detachable filter plates (211). A circulation pump (29) is provided on the water outlet pipe (19). When the visual detection sensor (22) detects that the turbidity of the water exceeds the preset threshold, the controller starts the water supply pipe (16) and the water outlet pipe (19) to filter and change the water inside the detection pool (11).

2. The radiator performance testing device according to claim 1, characterized in that, The gas supply pipeline (15) is equipped with a pressure measurement and control valve group (110), which includes a pressure gauge, a pressure sensor and an electromagnetic regulating valve, and is configured to introduce detection gas into the radiator to be tested and realize closed-loop pressure control; the pressure measurement and control valve group (110) also includes a flow detection unit installed on the gas supply pipeline (15), which is configured to detect the gas flow change caused by leakage of the radiator to be tested.

3. The radiator performance testing device according to claim 2, characterized in that, The pressure control valve group (110) is also connected to an air supply pipe (18). The pressure control valve group (110) is also configured to, after the test is completed, introduce dry compressed air into the radiator to be tested through the air supply pipe (18), and lift the radiator above the water surface with the help of the hoisting mechanism to achieve the blowing and drying of the radiator cavity and surface.

4. The radiator performance testing device according to claim 3, characterized in that, The bottom of the testing pool (11) is provided with a workpiece support (12) and a lifting push rod (27). The workpiece support (12) is used to place the radiator to be tested and can adjust the immersion depth of the radiator to be tested. The top of the telescopic rod of the lifting push rod (27) is equipped with a support seat (28). The support seat (28) supports the bottom of the radiator. The lifting push rod (27) can adjust the lifting of the radiator through the support seat (28). After the test is completed, the lifting push rod (27) can also support the radiator above the liquid surface.

5. The radiator performance testing device according to claim 4, characterized in that, The air inflator (17) is connected to a flexible braided pipe (111), which deforms during the radiator's lifting and lowering adjustment.

6. The radiator performance testing device according to claim 5, characterized in that, It also includes a hoisting bracket (13), which is connected to quick-release hooks (14) by multiple ropes. The quick-release hooks (14) can be detachably hung at multiple positions around the radiator. Hoisting equipment is installed on the hoisting bracket (13).

7. The radiator performance testing device according to claim 6, characterized in that, The walking base (24) is equipped with a lifting rail (25) via a connecting bracket (23). The lifting rail (25) is equipped with a driver (26) for self-driving. The visual inspection sensor (22) is installed on the slider of the lifting rail (25). The lifting rail (25) is used to realize the lifting adjustment of the visual inspection sensor (22).

8. The radiator performance testing device according to claim 7, characterized in that, The imaging area of ​​the visual inspection sensor (22) includes the fin surface area and the fin root area.

9. A method for testing the performance of a radiator, based on the radiator performance testing device according to claim 8, characterized in that, Includes the following steps: S1: Workpiece clamping and positioning; Place the radiator to be tested on the workpiece support (12) at the bottom of the test pool (11); S2: Inflation and pressure monitoring; Test gas is introduced into the radiator through the gas supply pipe (15), and the pressure control valve group (110) regulates the gas pressure to the preset test pressure and maintains the pressure. S3: Underwater immersion detection; The radiator is lowered so that it is completely submerged below the liquid surface of the test water tank (11); S4: Multi-directional visual leak detection; The walking base (24) moves horizontally along the moving track support (21), driving the vision detection sensor (22) to rise and fall along the lifting track (25), so as to realize multi-directional and multi-angle shooting of the surface and root of the radiator fins and identify the bubble signal generated by leakage in real time. S5: Automatic water purification linkage; The visual detection sensor (22) collects water turbidity data in real time. When the turbidity exceeds the preset threshold, the controller starts the circulation pump (29). The water in the detection pool (11) is filtered by the filter (210) and the detachable filter plate (211) and then discharged through the outlet pipe (19). At the same time, the water supply pipe (16) replenishes water into the pool to complete the water circulation and purification. S6: Leakage linkage detection; The pressure measurement and control valve group (110) compares the pressure change data and the flow change data of the flow detection unit with the bubble recognition data of the visual detection sensor (22) to determine whether the radiator is leaking and accurately locate the leak location. S7: Workpiece lifting and drainage; After the test is completed, the radiator is lifted above the liquid level of the test pool (11) and the residual water in the radiator cavity and surface is drained. S8: Linked purging and drying; The pressure control valve group (110) switches the air path and introduces dry compressed air into the radiator cavity through the second air supply pipe (18) to blow the radiator cavity and surface, remove residual moisture, and achieve drying without drying. S9: Disassembly and unloading; The inspected radiator is lifted off the inspection station using the hoisting bracket (13).

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