Automobile wire harness waterproof sealing detection device
By designing the testing box and sealing components, the problems of poor sealing performance and difficulty in cleaning water stains in the existing technology have been solved, realizing efficient waterproof sealing testing of wire harnesses and convenient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIANYANG HUARUI ELECTRONICS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
Smart Images

Figure CN224341146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive wiring harness testing technology, specifically to an automotive wiring harness waterproof sealing testing device. Background Technology
[0002] As a core component of automotive circuitry, the waterproofing and sealing performance of automotive wiring harnesses directly affects the safe and stable operation of a vehicle. In the complex working environment of a car, wiring harnesses are frequently exposed to moisture and humidity. If the waterproofing and sealing are inadequate, moisture can easily penetrate the wiring harness connections or internal components, leading to short circuits, poor contact, and even serious safety hazards such as loss of vehicle control. Therefore, accurate testing of the waterproofing and sealing performance of automotive wiring harnesses is a crucial step in ensuring vehicle quality and driving safety.
[0003] However, existing automotive wiring harness waterproofing and sealing testing devices have several shortcomings in practical applications. Firstly, some testing devices exhibit poor sealing performance when simulating humid testing environments, allowing moisture inside the testing chamber to easily escape and making it difficult to maintain a stable high-humidity testing environment. This significantly reduces the accuracy of the test results, failing to truly reflect the waterproofing performance of the wiring harness in actual humid environments. Secondly, after testing, a large amount of water residue remains on the surface of the wiring harness placed in a humid environment, making it difficult for operators to remove and inspect the waterproofing of the wiring harness connections, increasing the operational difficulty. Therefore, we propose an automotive wiring harness waterproofing and sealing testing device. Utility Model Content
[0004] The purpose of this invention is to provide a waterproof and sealing testing device for automotive wiring harnesses, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and sealing testing device for automotive wiring harnesses, comprising a testing box, a humidifier fixedly installed on the lower side of one side of the testing box, the output end of the humidifier being connected to the lower end of the testing box, a box cover provided on the upper end of the testing box, the box cover being detachably connected to the testing box, a wiping component for wiping away moisture from the surface of the wiring harness being provided on the upper end of the box cover, and a sealing component for sealing the testing box being provided on the lower end of the box cover.
[0006] Optionally, the wiping assembly includes a detection frame disposed on the upper end of the box cover, a plurality of limiting rods are fixedly installed on the lower end of the detection frame, the lower end of the limiting rods is provided with a through groove, the limiting rods are distributed in a ring, and a sponge layer is bonded to the upper end of the box cover.
[0007] Optionally, the sealing assembly includes a rubber plate disposed below the box cover, the limiting rod passing through the interior of the sponge layer and the rubber plate respectively, and a sealing ring fixedly installed in the middle of the limiting rod, the sealing ring being in contact with the lower end edge of the rubber plate.
[0008] Optionally, magnetic suction rods are fixedly installed on both sides of the upper end of the box cover, and the upper end of the magnetic suction rods is in contact with the lower end of the testing frame.
[0009] Optionally, a rubber block is fixedly installed at the lower end of the inner cavity of the through groove, and the rubber blocks are arranged symmetrically.
[0010] Optionally, the size of the lid is adapted to the size of the upper opening of the testing box, and the lid fits against the upper edge of the testing box.
[0011] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0012] This technical solution, through the design of a testing box, humidifier, testing frame, sealing ring, sponge layer, magnetic rod, and rubber block, allows the testing frame to move upwards along with a limiting rod. The limiting rod then moves the clamped automotive wiring harness, allowing it to pass through the sponge layer. The sponge layer effectively wipes away any residual water on the surface of the wiring harness, facilitating removal by personnel. This allows for inspection of the wiring harness connections to determine if they are waterproof and sealed. Furthermore, after the limiting rod is inserted into the box cover, the sealing ring on the limiting rod abuts against the inner wall of a slot on the rubber block. This sealing action, through the interaction of the sealing ring and the rubber block, seals the limiting rod during insertion of the testing frame into the testing box, preventing moisture from escaping and thus avoiding a humid testing environment. Attached Figure Description
[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0014] Figure 1 This is a schematic diagram of the overall structure of an automotive wiring harness waterproof sealing testing device according to the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the testing frame of the automotive wiring harness waterproof sealing testing device of this utility model.
[0016] In the diagram: 1. Testing box; 11. Humidifier; 12. Box lid; 2. Testing frame; 21. Limiting rod; 22. Sealing ring; 23. Rubber plate; 3. Sponge layer; 4. Magnetic suction rod; 5. Through groove; 6. Rubber block. Detailed Implementation
[0017] Please see Figure 1-2This utility model provides a technical solution: a waterproof sealing testing device for automotive wiring harnesses, including a testing box 1. A humidifier 11 is fixedly installed on the lower side of the testing box 1, and the output end of the humidifier 11 is connected to the lower end of the testing box 1. A box cover 12 is provided on the upper end of the testing box 1, and the box cover 12 is detachably connected to the testing box 1. A wiping component for wiping away moisture from the surface of the wiring harness is provided on the upper end of the box cover 12, and a sealing component for sealing the testing box 1 is provided on the lower end of the box cover 12.
[0018] In this embodiment, the testing frame 2 is first inserted through the sponge layer 3 and the rubber plate 23 into the lower part of the box cover 12. Then, the wire harness to be tested is inserted into the through groove 5. The inserted wire harness is then clamped and limited by the rubber block 6. The humidity inside the testing box 1 is added by the humidifier 11, thereby simulating a humid environment inside the testing box 1. This allows for the testing of the waterproof sealing performance of the automotive wire harness placed inside the testing box 1. After the automotive wire harness has been stored for a period of time, the testing frame 2 is pulled upwards, thereby causing the wiping component of the box cover 12 to wipe away any remaining water stains on the surface of the wire harness. This makes it easier for the staff to remove the wire harness. Then, the connection of the automotive wire harness is opened to observe whether there is moisture, thereby determining whether the connection of the automotive wire harness is waterproof and sealed. Furthermore, the sealing component can seal the limiting rod 21 during the insertion of the testing frame 2 into the testing box 1, preventing moisture from escaping into the testing box 1 and causing a humid testing environment.
[0019] In this technical solution, the wiping assembly includes a detection frame 2 set on the upper end of the box cover 12. Multiple limiting rods 21 are fixedly installed on the lower end of the detection frame 2. The lower end of the limiting rods 21 is provided with a through groove 5. The limiting rods 21 are distributed in a ring. A sponge layer 3 is bonded to the upper end of the box cover 12.
[0020] In this embodiment, during testing, the wire harness to be tested is first inserted into the through groove 5, and then the inserted wire harness is clamped and limited by the rubber block 6. After the automotive wire harness has been stored for a period of time, the testing frame 2 is pulled upward, and the testing frame 2 moves the limiting rod 21 upward. The limiting rod 21 moves the clamped automotive wire harness accordingly, so that the automotive wire harness passes through the sponge layer 3. The sponge layer 3 is attached to wipe away the water stains remaining on the surface of the automotive wire harness, so that the staff can easily remove the wire harness.
[0021] In this technical solution, the sealing assembly includes a rubber plate 23 disposed below the cover 12, a limiting rod 21 passing through the interior of the sponge layer 3 and the rubber plate 23 respectively, and a sealing ring 22 is fixedly installed in the middle of the limiting rod 21, and the sealing ring 22 is in contact with the lower end edge of the rubber plate 23.
[0022] In this embodiment, after the limiting rod 21 is inserted into the box cover 12, the sealing ring 22 on the limiting rod 21 will fit against the inner wall of the slot on the rubber plate 23. Through the cooperation of the sealing ring 22 and the rubber plate 23, the limiting rod 21 is sealed during the process of inserting the test frame 2 into the test box 1, so as to prevent moisture from escaping into the test box 1 and thus avoid the humid test environment.
[0023] In this technical solution, magnetic suction rods 4 are fixedly installed on both sides of the upper end of the box cover 12, and the upper end of the magnetic suction rods 4 is attached to the lower end of the detection frame 2.
[0024] In this embodiment, the magnetic suction rod 4 is provided so that the magnetic suction rod 4 can adsorb and limit the detection frame 2.
[0025] In this technical solution, a rubber block 6 is fixedly installed at the lower end of the inner cavity of the through groove 5, and the rubber blocks 6 are symmetrically arranged.
[0026] In this embodiment, the rubber block 6 is used to clamp and limit the automotive wiring harness.
[0027] In this technical solution, the size of the cover 12 is adapted to the size of the upper opening of the test box 1, and the cover 12 fits against the upper edge of the test box 1.
[0028] In this embodiment, the top of the test box 1 can be sealed by the cover 12, which facilitates the simulation of a humid test environment.
[0029] In use, first insert the testing frame 2 through the sponge layer 3 and rubber plate 23 into the bottom of the box cover 12. Then, insert the wire harness to be tested into the through slot 5. Next, use the rubber block 6 to clamp and limit the inserted wire harness. Then, use the humidifier 11 to add humidity to the inside of the testing box 1, thereby simulating a humid environment inside the testing box 1 to test the waterproof sealing performance of the automotive wire harness placed in the testing box 1. After the automotive wire harness has been stored for a period of time, pull the testing frame 2 upward. The testing frame 2 moves the limiting rod 21 upward, and the limiting rod 21 moves the clamped automotive wire harness accordingly, thereby allowing the automotive wire harness to pass through the through slot 5. The sponge layer 3 is used to wipe away residual water stains on the surface of the automotive wiring harness, making it easier for staff to remove the harness. Then, the connection of the automotive wiring harness is opened to check for moisture, thus determining whether the connection is waterproof and sealed. After the limiting rod 21 is inserted into the box cover 12, the sealing ring 22 on the limiting rod 21 will fit against the inner wall of the slot on the rubber plate 23. Through the cooperation of the sealing ring 22 and the rubber plate 23, the limiting rod 21 is sealed during the insertion of the test frame 2 into the test box 1, preventing moisture from escaping into the test box 1 and thus avoiding a humid testing environment.
Claims
1. A waterproof sealing testing device for automotive wiring harnesses, comprising a testing box (1), characterized in that: A humidifier (11) is fixedly installed on the lower side of the test box (1). The output end of the humidifier (11) is connected to the lower end of the test box (1). A box cover (12) is provided on the upper end of the test box (1). The box cover (12) is detachably connected to the test box (1). A wiping component for wiping the water vapor on the surface of the wire harness is provided on the upper end of the box cover (12). A sealing component for sealing the test box (1) is provided on the lower end of the box cover (12).
2. The automotive wiring harness waterproof sealing testing device according to claim 1, characterized in that: The wiping assembly includes a detection frame (2) disposed on the upper end of the box cover (12). Multiple limiting rods (21) are fixedly installed on the lower end of the detection frame (2). A through groove (5) is opened at the lower end of the limiting rod (21). The limiting rods (21) are arranged in a ring. A sponge layer (3) is bonded to the upper end of the box cover (12).
3. The automotive wiring harness waterproof sealing testing device according to claim 2, characterized in that: The sealing assembly includes a rubber plate (23) disposed below the box cover (12), and a limiting rod (21) passing through the interior of the sponge layer (3) and the rubber plate (23). A sealing ring (22) is fixedly installed in the middle of the limiting rod (21), and the sealing ring (22) is in contact with the lower end edge of the rubber plate (23).
4. The automotive wiring harness waterproof sealing testing device according to claim 3, characterized in that: Magnetic rods (4) are fixedly installed on both sides of the upper end of the box cover (12), and the upper end of the magnetic rods (4) is in contact with the lower end of the detection frame (2).
5. The automotive wiring harness waterproof sealing testing device according to claim 4, characterized in that: A rubber block (6) is fixedly installed at the lower end of the inner cavity of the through groove (5), and the rubber blocks (6) are symmetrically arranged.
6. The automotive wiring harness waterproof sealing testing device according to claim 5, characterized in that: The size of the lid (12) is adapted to the size of the upper opening of the test box (1), and the lid (12) is in contact with the upper edge of the test box (1).