New energy automobile radiator air tightness detection device

Abstract

The invention discloses a new energy automobile radiator air tightness detection device, and relates to the technical field of radiator detection, the new energy automobile radiator air tightness detection device comprises a test pool, a pressure release valve, a display screen and an air compressor, one side of the test pool is connected with the pressure release valve in a penetrating manner, a feeding mechanism is arranged right above the test pool, and the feeding mechanism is connected with the air compressor according to the specification of a radiator. The radiator and the positioning piece are vertically displaced, so that the radiator can be vertically butted with a corresponding device; a feeding mechanism is arranged on the base, a position changing mechanism is arranged on one side of the feeding mechanism, the position changing mechanism is used for assembling a radiator, then the radiator is transversely pushed, automatic displacement of the radiator is completed, and a display screen is arranged on the other side of the feeding mechanism. The applicability and accuracy are improved through non-contact detection (such as a direct pressure / differential pressure method), meanwhile, the equipment compatibility is further expanded through modular design (such as a replaceable tool), and the detection requirements of radiators of different specifications are met.

Description

[0001] The present invention relates to the technical field of radiator detection, and in particular to an air tightness detection device for a new energy vehicle radiator. Background Art

[0002] The core reason for conducting air tightness testing on automobile radiators is to meet the dual requirements of functionality and safety. As the core component of the water cooling system, if the radiator has air tightness defects, it will cause coolant leakage, reduce heat conduction efficiency, cause engine overheating or even damage. Air tightness testing can accurately locate tiny leaks (such as weld defects) to prevent the expansion of faults after long-term use.

[0003] Traditional airtightness testing requires sealing the entire product, installing the upper and lower water chambers, immersing the radiator in water via a lifting platform, and then injecting compressed air to observe bubbles and identify leaks. This method is suitable for rapid batch testing of metal radiators, but it suffers from low efficiency and high error rates.

[0004] When a gap appears in the lock, the clean water used for wet inspection will flow into the radiator through the gap, affecting the overall performance of the radiator. At the same time, the water remaining inside the radiator will also corrode the radiator, resulting in a significant shortening of the entire radiator life. Summary of the Invention

[0005] The purpose of the present invention is to provide a new energy vehicle radiator air tightness detection device to solve the above-mentioned defects caused by the prior art.

[0006] A new energy vehicle radiator air tightness testing device includes a test cell, a pressure relief valve, a display screen, and an air compressor. The pressure relief valve is connected to one side of the test cell. A loading mechanism is provided directly above the test cell. The loading mechanism vertically displaces the radiator and positioning member according to the specifications of the radiator, thereby facilitating the vertical connection between the radiator and the corresponding component.

[0007] A transposition mechanism is provided on one side of the feeding mechanism, and the transposition mechanism assembles the radiator, thereby pushing the radiator laterally, thereby completing the automatic displacement of the radiator. A display screen is provided on the other side of the feeding mechanism;

[0008] One side of the display screen is electrically connected to a control mechanism, which turns on and off the air compressor, thereby controlling the amount of gas injected and automatically executing the inflation-pressure maintenance-testing process. A pressure gauge is provided on one side of the test cell.

[0009] A docking mechanism is provided inside the test pool. The docking mechanism can form a stable sealed space according to the specifications of the radiator and the quick sealing connector without threaded fixation to connect the radiator. An air compressor is provided inside the test pool, and a pressure meter is connected to one side of the air compressor.

[0010] Preferably, the loading mechanism includes a test bench, a guide rail 1, a cylinder, a slider and a positioning hole. The test bench is arranged directly above the test pool. The outer side of the test bench is connected to the guide rail 1, and the outer side of the guide rail 1 is connected to the slider. The outer side of the guide rail 1 is provided with multiple groups of positioning holes at equal intervals, and the outer side of the slider is also provided with positioning holes. The bottom end of the slider is connected to the cylinder, and the cylinder and the rod positioning seat are arranged parallel to each other.

[0011] Preferably, the cylinder is connected to the outer side of the guide rail 1 through a slider arranged at the top.

[0012] Preferably, the switching mechanism includes a material rack, a second guide rail, an instrument plate seat, a rod positioning seat, an electromagnet block and fastening holes. The material rack is symmetrically arranged on both sides of the test pool. The outer side of the material rack is connected to the second guide rail, the outer side of the second guide rail is connected to the instrument plate seat, the top of the instrument plate seat is connected to the rod positioning seat, the outer side of the rod positioning seat is connected to the electromagnet block, and multiple groups of fastening holes are symmetrically arranged on the outer side of the instrument plate seat.

[0013] Preferably, the instrument plate seat is connected to the output end of the cylinder through an electromagnet block arranged at the top, and the output end of the cylinder is fitted and connected to the rod positioning seat.

[0014] Preferably, the control mechanism includes a camera, a PLC control box, a storage module and an overpressure alarm. The PLC control box is installed on one side of the test pool. The PLC control box is connected to the air compressor through a pressure sensor. An overpressure alarm is provided inside the PLC control box. The camera is installed directly above the PLC control box. The export end of the PLC control box is connected to the storage module. The output end of the storage module is connected to a display screen. A differential pressure sensor is provided inside the PLC control box.

[0015] Preferably, the docking mechanism includes a guide rod, a docking joint, a support plate, a hose and a bidirectional screw. The guide rod is arranged inside the test pool, and the outside of the guide rod is connected to the support plate. The bottom end of the support plate is connected to one end of the hose, and the hose is arranged inside the test pool. The other end of the hose is connected to the output end of the air compressor. The docking joint is installed directly above the support plate, and the support plate and the docking joint are symmetrically arranged inside the test pool. The support plate is symmetrically arranged on the outside of the bidirectional screw, and the hose arranged at the bottom end of the docking joint is connected to the output end of the air compressor.

[0016] Preferably, the test pool is connected to one side of the support plate through a bidirectional lead screw provided inside.

[0017] Preferably, the docking joint is connected to the top end of the hose via a supporting plate provided at the top end.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Improve applicability and accuracy through non-contact detection (such as direct pressure / differential pressure method). At the same time, modular design (such as replaceable tooling) further expands equipment compatibility and adapts to the detection needs of radiators of different specifications. Leak-free air-controlled valves are used to achieve precise control of the inflation, pressure maintenance and exhaust processes, support high-precision pressure regulation (such as 0-0.6Mpa range), select modular tooling and programmable control systems, adapt to different radiator models and expand multi-component detection functions.

[0020] 2. The ball screw is used to displace and adjust the distance of the instrument plate seat and the docking joint, and then flexibly adjust according to the specifications of the radiator and the position of the insertion part, which is convenient for batch testing of radiators of the same type and improves the efficiency of radiator testing. At the same time, a quick sealing connector is designed for the metal interface of the radiator (such as flange pipe head and pagoda pipe head), which can form a stable sealing space without threaded fixation and is suitable for multi-specification interface testing.

[0021] 3. Through the integration of intelligent loop control technology, the inflation-pressure holding-testing process is automatically executed, and manual or computer control mode switching is supported. At the same time, it is equipped with a touch screen or computer terminal to display the pressure curve, test parameters and judgment results in real time, support parameter customization (such as pressure holding time, leakage threshold), and use the built-in storage module or external database to automatically record test data (such as pressure drop value, leakage volume) and generate reports, and support data export for quality traceability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the present invention as a whole.

[0024] Figure 3 It is a schematic diagram of the overall side structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the overall top view structure of the present invention.

[0026] Figure 5 Schematic diagram of the internal structure of the test cell in the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the support plate in the present invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the PLC control box in the present invention.

[0029] Figure 8 This is a schematic diagram of the top view of the test pool in the present invention.

[0030] in:

[0031] 1. Test pool; 2. Pressure relief valve;

[0032] 3. Loading mechanism; 31. Test bench; 32. Guide rail 1; 33. Cylinder; 34. Slider; 35. Positioning hole;

[0033] 4. Positioning mechanism; 41. Material rack; 42. Guide rail 2; 43. Instrument plate seat; 44. Rod positioning seat; 45. Electromagnet block; 46. Fastening hole;

[0034] 5. Display screen;

[0035] 6. Control mechanism; 61. Camera; 62. PLC control box; 63. Storage module; 64. Overpressure alarm; 65. Differential pressure sensor;

[0036] 7. Pressure instrument;

[0037] 8. Docking mechanism; 81. Guide rod; 82. Docking joint; 83. Support plate; 84. Hose; 85. Bidirectional screw

[0038] 9. Air compressor. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] like Figures 1 to 8 As shown, a new energy vehicle radiator air tightness testing device includes a test pool 1, a pressure relief valve 2, a display screen 5 and an air compressor 9. The pressure relief valve 2 is connected to one side of the test pool 1. A loading mechanism 3 is provided directly above the test pool 1. The loading mechanism 3 vertically displaces the radiator and the positioning member according to the specifications of the radiator, thereby facilitating the vertical connection between the radiator and the corresponding device.

[0041] A transposition mechanism 4 is provided on one side of the feeding mechanism 3. The transposition mechanism 4 assembles the radiator, thereby pushing the radiator laterally, thereby completing the automatic displacement of the radiator. A display screen 5 is provided on the other side of the feeding mechanism 3.

[0042] One side of the display screen 5 is electrically connected to a control mechanism 6, which turns on and off the air compressor 9, thereby controlling the amount of gas injected and automatically executing the inflation-pressure maintenance-testing process. A pressure gauge 7 is provided on one side of the test cell 1;

[0043] In this embodiment, a docking mechanism 8 is provided inside the test pool 1. The docking mechanism 8 can form a stable sealed space according to the specifications of the radiator and the quick sealing connector without threaded fixation to connect the radiator. An air compressor 9 is provided inside the test pool 1, and a pressure gauge 7 is connected to one side of the air compressor 9.

[0044] In this embodiment, the loading mechanism 3 includes a test bench 31, a guide rail 32, a cylinder 33, a slider 34 and a positioning hole 35. The test bench 31 is arranged directly above the test pool 1. The outer side of the test bench 31 is connected to the guide rail 32, and the outer side of the guide rail 32 is connected to the slider 34. The outer side of the guide rail 32 is provided with multiple groups of positioning holes 35 at equal intervals, and the outer side of the slider 34 is also provided with positioning holes 35. The bottom end of the slider 34 is connected to the cylinder 33, and the cylinder 33 is arranged parallel to the rod positioning seat 44.

[0045] In this embodiment, the cylinder 33 is connected to the outer side of the guide rail 1 32 through a slider 34 provided at the top. The slider 34 drives the cylinder 33 to move, and the position of the cylinder 33 is adjusted accordingly according to assembly requirements.

[0046] In this embodiment, the shifting mechanism 4 includes a material rack 41, a guide rail 2 42, an instrument plate seat 43, a rod positioning seat 44, an electromagnet block 45 and a fastening hole 46. The material rack 41 is symmetrically arranged on both sides of the test pool 1. The outer side of the material rack 41 is connected to the guide rail 2 42, the outer side of the guide rail 2 42 is connected to the instrument plate seat 43, the top of the instrument plate seat 43 is connected to the rod positioning seat 44, the outer side of the rod positioning seat 44 is connected to the electromagnet block 45, and the outer side of the instrument plate seat 43 is symmetrically provided with multiple groups of fastening holes 46.

[0047] In this embodiment, the instrument plate seat 43 is connected to the output end of the cylinder 33 through the electromagnet block 45 set at the top. The output end of the cylinder 33 is fit-connected with the rod positioning seat 44, and the rod positioning seat 44 is docked through the cylinder 33 to facilitate vertical lifting of the equipment.

[0048] In this embodiment, the control mechanism 6 includes a camera 61, a PLC control box 62, a storage module 63 and an overpressure alarm 64. The PLC control box 62 is installed on one side of the test pool 1. The PLC control box 62 is connected to the air compressor 9 through a pressure sensor. An overpressure alarm 64 is provided inside the PLC control box 62. The camera 61 is installed directly above the PLC control box 62. The output end of the PLC control box 62 is connected to the storage module 63. The output end of the storage module 63 is connected to the display screen 5. A differential pressure sensor 65 is provided inside the PLC control box 62, and the pressure of the injected gas is sensed by the differential pressure sensor 65.

[0049] In this embodiment, the docking mechanism 8 includes a guide rod 81, a docking joint 82, a support plate 83, a hose 84 and a bidirectional screw 85. The guide rod 81 is arranged inside the test pool 1, and the outer side of the guide rod 81 is connected with a support plate 83. The bottom end of the support plate 83 is connected to one end of a hose 84. The hose 84 is arranged inside the test pool 1, and the other end of the hose 84 is connected to the output end of the air compressor 9. The docking joint 82 is installed directly above the support plate 83. The support plate 83 and the docking joint 82 are symmetrically arranged inside the test pool 1. The support plate 83 is symmetrically arranged on the outside of the bidirectional screw 85. The hose 84 arranged at the bottom end of the docking joint 82 is connected to the output end of the air compressor 9.

[0050] In this embodiment, the test cell 1 is connected to one side of the support plate 83 through a bidirectional screw 85 provided inside. The support plate 83 is displaced by the bidirectional screw 85 to control the distance between two or more groups of support plates 83.

[0051] In this embodiment, the docking joint 82 is connected to the top of the hose 84 via a support plate 83 provided at the top, and the radiator is connected via the docking joint 82, thereby ensuring the stability of the radiator during operation.

[0052] The practical application of this new energy vehicle radiator air tightness testing equipment includes the following working processes:

[0053] Step 1: The operator first fits the fastening hole 46 provided on the outer side of the instrument plate seat 43 with the radiator, inserts a bolt into the inside of the fastening hole 46 to position the outer shell of the radiator, and then pushes the instrument plate seat 43 so that the rod positioning seat 44 provided on the top of the instrument plate seat 43 is connected to the output end of the cylinder 33. The output end of the cylinder 33 is then aligned with the electromagnet block 45. After opening the cylinder 33 so that the output end of the cylinder 33 contacts the rod positioning seat 44, the electromagnet block 45 is used to magnetically connect the output end of the cylinder 33.

[0054] Step 2: The operator pulls the cylinder 33, causing the slider 34 provided at the top of the cylinder 33 to move outside the guide rail 1 32, causing the cylinder 33 and the instrument plate seat 43 to move synchronously, thereby aligning the fixed radiator. The cylinder 33 then drives the instrument plate seat 43 to move vertically downward, causing the radiator to move into the test pool 1. The test pool 1 and the instrument plate seat 43 provided at the top are used to wrap and isolate the radiator to prevent damage to the radiator during the test process, thereby preventing damage to the test worker.

[0055] Step 3: The operator holds the bidirectional screw 85 on one side and uses the bidirectional screw 85 to move the support plate 83. At the same time, the support plate 83 is used to position the corresponding docking joint 82 so that the bottom end of the docking joint 82 is connected to the hose 84. The air compressor 9 injects high-pressure air into the radiator through the hose 84. The bidirectional screw 85 drives the docking joint 82 to move and aligns the docking joint 82 with the access end of the radiator.

[0056] Step 4: Select a dry compressed air source (pressure range 0.4-0.6 MPa) and output it to the air tightness tester through the air compressor 9. Install a special tooling fixture to ensure that the radiator interface matches the docking joint 82 to form a leak-free enclosed space. Connect the air source pipeline and power supply (AC220V), start the tester and complete the equipment self-test. According to the radiator type (water cooling / air cooling) and material properties, set the test pressure (such as 150 kPa for commercial vehicles and 180 kPa for passenger cars) and the pressure holding time (30 seconds for wet test and 60 seconds for dry test), and calibrate the pressure sensor accuracy (resolution up to 0.11 kPa). Use the camera 61 to record the images during the test to facilitate remote control and recording by the operator.

[0057] Step 5: The PLC control box 62 starts and controls the air compressor 9, and pressurizes the inside of the radiator to the set value through the air control valve. The data is displayed on the display screen 5, and the stability of the pressure curve is monitored in real time. The differential pressure sensor 65 monitors the pressure change, records the pressure drop value and determines whether it exceeds the leakage mark. The pressure difference data is directly read by the instrument, which has higher accuracy and does not require subsequent cleaning. The pressure is warned by the overpressure alarm 64 to avoid damage to the radiator due to excessive pressure.

[0058] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A new energy vehicle radiator air tightness detection device, characterized by: The device comprises a test pool (1), a pressure relief valve (2), a display screen (5) and an air compressor (9); the pressure relief valve (2) is connected to one side of the test pool (1); a loading mechanism (3) is provided directly above the test pool (1); the loading mechanism (3) vertically displaces the radiator and the positioning member according to the specifications of the radiator, thereby facilitating the vertical docking of the radiator with the corresponding device; A transposition mechanism (4) is provided on one side of the feeding mechanism (3), and the transposition mechanism (4) assembles the radiator, thereby pushing the radiator laterally, thereby completing the automatic displacement of the radiator. A display screen (5) is provided on the other side of the feeding mechanism (3); One side of the display screen (5) is electrically connected to a control mechanism (6), and the control mechanism (6) turns on and off the air compressor (9), thereby controlling the amount of gas injected and automatically executing the inflation-pressure maintenance-testing process. A pressure meter (7) is provided on one side of the test cell (1); The test pool (1) is provided with a docking mechanism (8) therein. The docking mechanism (8) can form a stable sealed space according to the specifications of the radiator and a quick sealing connector without threaded fixation, and is connected to the radiator. The test pool (1) is provided with an air compressor (9) therein, and a pressure meter (7) is connected to one side of the air compressor (9).

2. The air tightness testing device for a new energy vehicle radiator according to claim 1 is characterized in that: The feeding mechanism (3) comprises a test bench (31), a guide rail (32), a cylinder (33), a slider (34) and a positioning hole (35). The test bench (31) is arranged directly above the test pool (1). The outer side of the test bench (31) is connected to the guide rail (32). The outer side of the guide rail (32) is connected to the slider (34). The outer side of the guide rail (32) is provided with multiple groups of positioning holes (35) at equal intervals. The outer side of the slider (34) is also provided with a positioning hole (35). The bottom end of the slider (34) is connected to the cylinder (33). The cylinder (33) and the rod positioning seat (44) are arranged in parallel.

3. The air tightness testing device for a new energy vehicle radiator according to claim 2 is characterized in that: The cylinder (33) is connected to the outer side of the guide rail (32) via a slider (34) arranged at the top.

4. The air tightness testing device for a new energy vehicle radiator according to claim 1 is characterized in that: The shifting mechanism (4) includes a material rack (41), a second guide rail (42), an instrument plate seat (43), a rod positioning seat (44), an electromagnet block (45) and a fastening hole (46). The material rack (41) is symmetrically arranged on both sides of the test pool (1). The outer side of the material rack (41) is connected to the second guide rail (42), the outer side of the second guide rail (42) is connected to the instrument plate seat (43), the top end of the instrument plate seat (43) is connected to the rod positioning seat (44), the outer side of the rod positioning seat (44) is connected to the electromagnet block (45), and the outer side of the instrument plate seat (43) is symmetrically provided with multiple groups of fastening holes (46).

5. The air tightness testing device for a new energy vehicle radiator according to claim 4 is characterized in that: The instrument plate seat (43) is connected to the output end of the cylinder (33) through the electromagnet block (45) arranged at the top, and the output end of the cylinder (33) is fitted and connected to the rod positioning seat (44).

6. The new energy vehicle radiator air tightness testing device according to claim 4, characterized in that: The control mechanism (6) includes a camera (61), a PLC control box (62), a storage module (63) and an overpressure alarm (64). The PLC control box (62) is installed on one side of the test pool (1). The PLC control box (62) is connected to the air compressor (9) via a pressure sensor. The PLC control box (62) is provided with an overpressure alarm (64). The camera (61) is installed directly above the PLC control box (62). The output end of the PLC control box (62) is connected to the storage module (63). The output end of the storage module (63) is connected to the display screen (5). The PLC control box (62) is provided with a differential pressure sensor (65).

7. The new energy vehicle radiator air tightness testing device according to claim 1, characterized in that: The docking mechanism (8) comprises a guide rod (81), a docking joint (82), a support plate (83), a hose (84) and a bidirectional screw (85), wherein the guide rod (81) is arranged inside the test pool (1), the outside of the guide rod (81) is connected to the support plate (83), the bottom end of the support plate (83) is connected to one end of a hose (84), the hose (84) is arranged inside the test pool (1), the other end of the hose (84) is connected to the output end of the air compressor (9), the docking joint (82) is installed just above the support plate (83), the support plate (83) and the docking joint (82) are symmetrically arranged inside the test pool (1), the support plate (83) is symmetrically arranged on the outside of the bidirectional screw (85), and the hose (84) arranged at the bottom end of the docking joint (82) is connected to the output end of the air compressor (9).

8. The air tightness testing equipment for a new energy vehicle radiator according to claim 7 is characterized in that: The test pool (1) is connected to one side of the support plate (83) via a bidirectional lead screw (85) provided inside.

9. The new energy vehicle radiator air tightness testing device according to claim 7, characterized in that: The butt joint (82) is connected to the top end of the hose (84) via a supporting plate (83) provided at the top end.

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