Automobile wire harness waterproof performance testing device

Abstract

The utility model discloses an automobile wire harness waterproof performance testing device, and relates to the technical field of automobile wire harness testing, the automobile wire harness waterproof performance testing device comprises a detection box body and a mounting plate, the bottom of the detection box body is provided with a soaking tank, and one side of the mounting plate is rotatably connected with a second connecting rod through a first connecting pin; one end of the first connecting rod and one end of the second connecting rod are rotationally connected with the supporting plate through first connecting pins, a positioning pin is arranged on one side of the second connecting rod, a grip is installed on the top of the second connecting rod, a connecting plate is installed on the top of the supporting plate, and a water injection column is installed on one side of the supporting plate. One side of the supporting plate is provided with the air guide column, the two ends of the wiring harness sleeve are arranged on the threaded grooves of the water injection column and the air guide column in a sleeving mode respectively, the first threaded sealing sleeve and the second threaded sealing sleeve are matched with the threaded grooves, the wiring harness sleeve can be completely sealed, the internal air tightness is guaranteed, the detection accuracy is improved, operation is convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive wire harness testing, and specifically relates to a testing device for the waterproof performance of automotive wire harnesses. Background Art

[0002] As an essential part of the automotive electrical system, the automotive wire harness is not only a connection bridge between electrical devices, but also the key to ensuring the smooth operation of the entire electrical system. Therefore, the quality of its waterproof performance directly affects the stable operation of electrical devices, and thus is related to driving safety. During the driving of an automobile, various complex climatic and environmental conditions will be encountered, such as rainwater, snow water, muddy water, etc. If the waterproof performance of the automotive wire harness is poor, these moisture may penetrate into the interior of the wire harness, resulting in short circuits or corrosion of the wires inside the wire harness, thereby affecting the normal operation of electrical devices. Once an electrical device fails, it will not only affect the normal driving of the automobile, but also pose a threat to the life safety of the driver; when driving in rainy or snowy weather, if the waterproof performance of the automotive wire harness is poor, moisture may enter the interior of the wire harness, resulting in a short circuit of the wires, and then triggering a fire or other safety accidents. In order to improve the waterproof performance of automotive wire harnesses, manufacturers need to use high-quality waterproof materials and strictly control the production process to ensure that each wire harness has good waterproof performance. At the same time, drivers should also regularly check the waterproof performance of the automotive wire harness, promptly discover and repair potential problems to ensure driving safety.

[0003] Traditional testing devices for the waterproof performance of automotive wire harnesses usually use the method of spraying or soaking the wire harness from the outside to detect the waterproof performance of the wire harness. The spraying or soaking method cannot fully cover all parts of the wire harness, and the inside of the wire harness cannot be detected. The spraying or soaking method may not be able to simulate various factors in the actual use environment. Due to the length and complexity of the wire harness, the testing process may take a long time to ensure that each part is fully tested. This may lead to low testing efficiency and increased testing costs and time costs. Therefore, through technological innovation and design optimization, it is necessary to realize the optimization of a testing device for the waterproof performance of automotive wire harnesses. Content of the Utility Model

[0004] Traditional automotive wiring harness waterproof performance testing devices usually use the method of spraying or immersing the wiring harness from the outside to detect the waterproof performance of the wiring harness. The spraying or immersing method may not be able to simulate various factors in the actual use environment. During the use of the vehicle, it will face various complex environmental conditions, such as rain, mud, sand and dust. These factors may have different effects on the waterproof performance of the wiring harness. In addition, the spraying or immersing method may take a long time to complete the test. Due to the length and complexity of the wiring harness, the test process may take a long time to ensure that each part is fully tested. This may lead to low test efficiency, increasing the test cost and time cost. To solve the above problems, the embodiments of the present application provide an automotive wiring harness waterproof performance testing device. By sleeving the two ends of the wiring harness sleeve on the threaded grooves of the water injection column and the air guide column respectively, the first threaded sealing sleeve and the second threaded sealing sleeve cooperate with the threaded grooves to completely seal the wiring harness sleeve, ensuring the airtightness inside and improving the accuracy of detection. The water injection hole can inject tap water into the wiring harness sleeve, and the air guide hole can inject air into the wiring harness sleeve to detect the airtightness and waterproofness of the wiring harness. The detection accuracy is high, the operation is simple and convenient, and the practicability is strong.

[0005] The technical solution adopted by the embodiments of the present application to solve its technical problems is:

[0006] An automotive wiring harness waterproof performance testing device, comprising: a detection box body and a mounting plate, wherein the mounting plate is symmetrically arranged at the bottom of the detection box body;

[0007] Wherein, a water immersion tank is opened at the bottom of the detection box body for placing tap water. The water immersion tank can be used to simulate the vehicle soaking situation, immerse the wiring harness sleeve, and detect the waterproof performance of the wiring harness.

[0008] In a possible implementation manner, one side of the mounting plate is rotatably connected to a first connecting rod through a first connecting pin, and one side of the mounting plate is rotatably connected to a second connecting rod through a first connecting pin. Both the first connecting rod and the second connecting rod can rotate 90° around the first connecting pin. During the rotation process, the wiring harness sleeve moves accordingly, which can simulate the real situation during the vehicle movement process.

[0009] In a possible implementation manner, one end of the first connecting rod and one end of the second connecting rod are both rotatably connected to a support plate through a first connecting pin. The support plates are symmetrically arranged. The support plate is triangular, wider at the top and narrower at the bottom. The narrow bottom and wide top of the support plate can ensure that the wiring harness sleeve is placed in the water immersion tank, and at the same time, it can also reduce the space occupied by the detection device.

[0010] In a possible implementation, a connecting plate is installed on the top of the support plate. A water injection column is installed on one side of the support plate. A water injection hole is provided at the top of the water injection column. A gas guide column is installed on one side of the support plate. A gas guide hole is provided at the top of the gas guide column. The connecting plate connects two support plates to ensure that the symmetrically arranged support plates move synchronously. The water injection column is used to inject water into the wire harness sleeve, and the gas guide column is used to inject air into the wire harness sleeve.

[0011] In a possible implementation, a buckle is rotatably connected to one side of the support plate through a second connecting pin. The positioning buckle at the top of the buckle is adapted to the positioning pin. The buckle and the positioning pin cooperate to lock the support plate and fix the connecting plate in a horizontal position.

[0012] In a possible implementation, thread grooves are provided on the outer sides of both the water injection column and the gas guide column. A first thread sealing sleeve is sleeved outside the thread groove of the water injection column, and a second thread sealing sleeve is sleeved outside the thread groove of the gas guide column. Both ends of the wire harness sleeve are respectively sleeved on the thread grooves of the water injection column and the gas guide column. The first thread sealing sleeve and the second thread sealing sleeve cooperate with the thread groove to completely seal the wire harness sleeve, ensuring the airtightness inside and improving the accuracy of detection.

[0013] In a possible implementation, a positioning pin is provided on one side of the second connecting rod. A handle is installed on the top of the second connecting rod. A silica gel anti-slip sleeve is sleeved on the surface of the handle. The staff holds the handle to drag and move, which can drive the first connecting rod and the second connecting rod to move. The silica gel anti-slip sleeve can increase the friction between the palm and the handle.

[0014] In a possible implementation, the first connecting rod and the second connecting rod can rotate 90° around the first connecting pin. The inner hole diameters of the first thread sealing sleeve and the second thread sealing sleeve are larger than the diameter of the thread groove.

[0015] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0016] 1. By sleeving both ends of the wire harness sleeve on the thread grooves of the water injection column and the gas guide column respectively, the first thread sealing sleeve and the second thread sealing sleeve cooperate with the thread groove to completely seal the wire harness sleeve, ensuring the airtightness inside and improving the accuracy of detection. The water injection hole can inject tap water into the wire harness sleeve, and the gas guide hole can inject air into the wire harness sleeve to detect the airtightness and waterproofness of the wire harness. The detection accuracy is high and the operation is simple and easy to master.

[0017] 2. By the cooperation of the buckle and the positioning pin, the support plate can be positioned in the horizontal position. Water is injected into the wire harness sleeve, which is convenient for the staff to monitor the water seepage condition of the wire harness sleeve. After the monitoring is completed, the support plate is retracted into the interior of the detection box body, which can save space for placing other devices and provide convenience for the staff to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the extended state of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the overall structure of the present utility model;

[0020] Figure 3 is a schematic structural diagram of the overall support plate of the present utility model;

[0021] Figure 4 is a schematic structural diagram of the first thread sealing sleeve of the present utility model.

[0022] Reference numerals: 1, detection box body; 2, mounting plate; 3, first connecting pin; 4, first connecting rod; 5, second connecting rod; 51, positioning pin; 52, grip; 6, support plate; 7, connecting plate; 8, water injection column; 81, thread groove; 82, first thread sealing sleeve; 9, second connecting pin; 10, buckle; 11, air guiding column; 12, second thread sealing sleeve; 13, water immersion tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the present utility model with reference to the drawings in the present utility model. In addition, the forms of the respective structures described in the following embodiments are merely examples, and the instrument rack involved in the present utility model is not limited to the respective structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] This embodiment introduces the specific structure of a waterproof performance testing device for automotive wire harnesses, specifically referring to Figures 1 - 3As shown, an automotive wire harness waterproof performance testing device includes: a detection box body 1 and a mounting plate 2. The mounting plate 2 is symmetrically arranged at the bottom of the detection box body 1. An immersion tank 13 is provided at the bottom of the detection box body 1 for placing tap water. The immersion tank 13 can be used to simulate the situation of a vehicle being submerged in water, soak the wire harness sleeve, and detect the waterproof performance of the wire harness. One side of the mounting plate 2 is rotatably connected to a first connecting rod 4 through a first connecting pin 3, and one side of the mounting plate 2 is rotatably connected to a second connecting rod 5 through a first connecting pin 3. Both the first connecting rod 4 and the second connecting rod 5 can rotate 90° around the first connecting pin 3. During the rotation process, the movement of the wire harness sleeve can simulate the real situation during the movement of the vehicle. A positioning pin 51 is provided on one side of the second connecting rod 5, and a grip 52 is installed at the top of the second connecting rod 5. A silica gel anti-slip sleeve is sleeved on the surface of the grip 52. When the staff holds the grip 52 to drag and move, it can drive the first connecting rod 4 and the second connecting rod 5 to move. The silica gel anti-slip sleeve can increase the friction between the palm and the grip 52. One end of the first connecting rod 4 and one end of the second connecting rod 5 are both rotatably connected to a support plate 6 through a first connecting pin 3. The support plates 6 are symmetrically arranged. The support plate 6 is triangular, wider at the top and narrower at the bottom. The narrow bottom and wide top of the support plate 6 can ensure that the wire harness sleeve is placed in the immersion tank 13. At the same time, it can also reduce the space occupied by the testing device.

[0025] Example 1:

[0026] When the staff uses this automotive wire harness waterproof performance testing device to simulate the motion state to detect the waterproof performance of the wire harness, the staff first loads the sponge into the wire harness sleeve, then fixes both ends of the wire harness sleeve on the threaded grooves 81. The air guide columns 11 evenly inject air into the wire harness sleeve. Then the staff holds the grip 52 to drive the first connecting rod 4 and the second connecting rod 5 to move. The first connecting rod 4 and the second connecting rod 5 push the support plate 6 to move. Hold the grip 52 to make a reciprocating motion, and the wire harness sleeve repeatedly enters and exits the immersion tank 13, simulating the moving state of the wire harness sleeve during driving. After 5 minutes, remove the wire harness sleeve and observe the humidity of the sponge, and compare it with the humidity of the sponge in the wire harness sleeve with the standard waterproof performance of the same material to confirm whether the waterproof performance of the tested wire harness sleeve meets the requirements.

[0027] Example 2:

[0028] As Figure 1 With Figure 2 Shown, based on the same concept as the above embodiment, this embodiment also proposes:

[0029] A connecting plate 7 is installed on the top of the support plate 6. An injection water column 8 is installed on one side of the support plate 6. An injection hole is provided at the top of the injection water column 8. A gas guide column 11 is installed on one side of the support plate 6. A gas guide hole is provided at the top of the gas guide column 11. The connecting plate 7 connects the two support plates 6 to ensure the synchronous movement of the symmetrically arranged support plates 6. The injection water column 8 is used to inject water into the wire harness sleeve. The gas guide column 11 is used to inject air into the wire harness sleeve. One side of the support plate 6 is rotatably connected with a buckle 10 through a second connecting pin 9. The top positioning buckle of the buckle 10 is adapted to the positioning pin 51. The buckle 10 and the positioning pin 51 cooperate to lock the support plate 6 and fix the connecting plate 7 in a horizontal position. Thread grooves 81 are provided on the outer sides of both the injection water column 8 and the gas guide column 11. A first threaded sealing sleeve 82 is sleeved outside the thread groove 81 of the injection water column 8. A second threaded sealing sleeve 12 is sleeved outside the thread groove 81 of the gas guide column 11. Both ends of the wire harness sleeve are respectively sleeved on the thread grooves 81 of the injection water column 8 and the gas guide column 11. The cooperation of the first threaded sealing sleeve 82 and the second threaded sealing sleeve 12 with the thread groove 81 can completely seal the wire harness sleeve, ensure the airtightness inside, and improve the accuracy of detection. The first connecting rod 4 and the second connecting rod 5 can rotate 90° around the first connecting pin 3. The inner hole diameters of the first threaded sealing sleeve 82 and the second threaded sealing sleeve 12 are larger than the diameter of the thread groove 81.

[0030] When the staff uses this automotive wire harness waterproof performance testing device to test the waterproof performance of the wire harness during soaking, the staff first fixes both ends of the wire harness sleeve on the thread groove 81, fills the tap water in the soaking tank 13, the gas guide column 11 evenly injects air into the wire harness sleeve, immerses the wire harness sleeve into the soaking tank 13 to simulate the state of the car being soaked in water. The staff observes the change of water surface bubbles within 5 minutes and compares it with the bubble generation rate of the wire harness sleeve with the standard waterproof performance of the same material within 5 minutes to confirm whether the waterproof performance of the tested wire harness sleeve meets the requirements.

[0031] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An automobile wire harness waterproof performance testing device, characterized in that, Comprising: Detection box body (1); Mounting plate (2), symmetrically arranged at the bottom of the detection box body (1); Wherein, a water immersion tank (13) is opened at the bottom of the detection box body (1) for placing tap water.

2. The waterproof performance testing device for an automotive wiring harness according to claim 1, wherein: One side of the mounting plate (2) is rotatably connected to the first connecting rod (4) through the first connecting pin (3), and one side of the mounting plate (2) is rotatably connected to the second connecting rod (5) through the first connecting pin (3).

3. The waterproof performance testing device for an automotive wiring harness according to claim 2, wherein: A positioning pin (51) is arranged on one side of the second connecting rod (5), and a handle (52) is installed at the top of the second connecting rod (5). A silica gel anti-slip sleeve is sleeved on the surface of the handle (52).

4. The waterproof performance testing device for an automotive wiring harness according to claim 2, characterized in that: One end of the first connecting rod (4) and one end of the second connecting rod (5) are both rotatably connected to the support plate (6) through the first connecting pin (3). The support plates (6) are symmetrically arranged. The support plate (6) is triangular, wider at the top and narrower at the bottom.

5. The waterproof performance testing device for an automotive wiring harness according to claim 4, characterized in that: A connecting plate (7) is installed at the top of the support plate (6). A water injection column (8) is installed on one side of the support plate (6). A water injection hole is opened at the top of the water injection column (8). An air guide column (11) is installed on one side of the support plate (6). An air guide hole is opened at the top of the air guide column (11).

6. The automotive wiring harness waterproof performance testing device according to claim 5, wherein: A buckle (10) is rotatably connected to one side of the support plate (6) through a second connecting pin (9). The top positioning buckle of the buckle (10) is adapted to the positioning pin (51).

7. The automotive wiring harness waterproof performance testing device according to claim 5, characterized in that: Thread grooves (81) are opened on the outer sides of the water injection column (8) and the air guide column (11). A first thread sealing sleeve (82) is sleeved outside the thread groove (81) of the water injection column (8). A second thread sealing sleeve (12) is sleeved outside the thread groove (81) of the air guide column (11).

8. The waterproof performance testing device for an automotive wiring harness according to claim 7, wherein: The first connecting rod (4) and the second connecting rod (5) can rotate 90° around the first connecting pin (3). The inner hole diameters of the first thread sealing sleeve (82) and the second thread sealing sleeve (12) are larger than the diameter of the thread groove (81).

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