Automobile wire harness protection box
By designing an automotive wiring harness protection box with a motor-driven exhaust fan blade, the problems of inconvenient disassembly and assembly, poor sealing, and inadequate heat dissipation of existing wiring harness protection boxes have been solved, achieving convenient installation, good sealing, and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN SINODA AUTOMOTIVE WIRING HARNESS CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-01
AI Technical Summary
Existing wire harness protection boxes are cumbersome to install and remove, have poor sealing, insufficient clamping stability, are prone to accumulating dust, and have poor heat dissipation, leading to damage to wire harness connectors.
An automotive wiring harness protection box comprising an upper and lower protective shell was designed. Internal airflow is achieved through a motor-driven rotating shaft and exhaust fan blades. Combined with a dustproof mesh and clamping plate structure, the sealing performance and clamping stability are improved. Air convection is formed through the air inlet and outlet for heat dissipation.
It enables convenient assembly and disassembly of the wire harness protection box, improves sealing and clamping stability, prevents dust from entering, ensures heat dissipation, and avoids damage to the wire harness connectors.
Smart Images

Figure CN224191572U_ABST
Abstract
Description
A type of automotive wiring harness protection box Technical Field
[0001] This utility model belongs to the field of automotive technology, specifically relating to an automotive wiring harness protection box. Background Technology
[0002] Automotive wiring harnesses are the core of a vehicle's electrical network; without them, there is no automotive electrical system. A wiring harness is an assembly consisting of copper-plated contact terminals (connectors) crimped to wires and cables, then covered with a molded insulator or an outer metal shell, and bundled together to form a connected circuit. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing, and downstream application industries. Wiring harnesses have a wide range of applications, including automobiles, home appliances, computer and communication equipment, and various electronic instruments. Body wiring harnesses connect the entire vehicle body and are generally H-shaped.
[0003] Automotive wiring harnesses often use wiring harness protection boxes to protect them. The connectors of automotive wiring harnesses are the most vulnerable to protection by wiring harness protection boxes. However, existing wiring harness protection boxes are cumbersome to install and remove, have poor sealing, poor clamping stability of the internal wiring harness, and are prone to dust accumulation inside the boxes, which can damage the wiring harness. When heat is generated, it cannot be dissipated in time, which can easily burn out the wiring harness connectors. Therefore, we have designed a dustproof automotive interior wiring harness protection box. Summary of the Invention
[0004] To address the problems mentioned in the background section, this utility model provides an automotive wiring harness protection box. This solves the problem that automotive wiring harnesses often use protection boxes to protect them, especially the connectors. However, existing protection boxes are cumbersome to install and remove, have poor sealing, poor clamping stability for the internal wiring harness, and are prone to dust accumulation, leading to dust damage and insufficient heat dissipation, which can easily burn out the wiring harness connectors.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive wiring harness protective box, comprising an upper protective shell and a lower protective shell. A motor is fixedly installed at the center inside the upper protective shell, and a rotating shaft is connected to the output end of the motor. A mounting block is fixedly installed at one end of the rotating shaft, and an exhaust fan blade is fixedly installed on the surface of the mounting block. A lower positioning plate is fixedly installed at one end of the surface of the lower protective shell, and a nut is provided at the bottom of the lower positioning plate. An upper positioning plate is fixedly connected to one end of the surface of the upper protective shell, and an internal hexagon bolt is provided at the top of the upper positioning plate, with the other end of the internal hexagon bolt... The upper and lower positioning plates are completely threaded through and connected to the nuts. Upper clamping plates are fixedly installed on both sides of the upper protective shell surface, and lower clamping plates are fixedly installed on both sides of the lower protective shell surface, with the upper and lower clamping plates corresponding to each other. A hinge is fixedly connected to one end of the upper protective shell surface, and a connecting block is fixedly installed to one end of the lower protective shell surface, with the hinge connected to the surface hinge of the connecting block. A support plate is provided inside the lower protective shell. An air inlet is provided at the top of the upper protective shell, and an air outlet is provided at the bottom of the lower protective shell, with the air inlet and air outlet installed corresponding to each other.
[0006] Preferably, a mounting frame is fixedly installed on the top of the upper protective shell, and a first dustproof net is connected inside the mounting frame.
[0007] Preferably, mounting plates are fixedly connected to both sides of the mounting frame surface, and mounting holes are provided inside the mounting plates.
[0008] Preferably, one end of the upper plate is connected to a second rubber pad, and one end of the lower plate is connected to a first rubber pad, with the first rubber pad and the second rubber pad being installed correspondingly.
[0009] Preferably, heat-conducting plates are connected to both sides inside the lower protective shell.
[0010] Preferably, there are two sets of support plates, and the two sets of support plates are installed correspondingly.
[0011] Preferably, a second dustproof net is fixedly connected to the bottom of the lower protective shell.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The upper and lower protective shells are connected by a connecting block and a hinge. An upper positioning plate and a lower positioning plate are respectively installed at one end of the upper and lower protective shells. The wire harness is secured by passing hexagonal bolts through the two sets of positioning plates and tightening nuts, making the wire harness protection box easier to assemble and disassemble. The support plate, first rubber ring, and second rubber ring adhere to the surface of the wire harness, increasing the sealing of the protection box. The upper and lower clamping plates cooperate and contact each other to fix the position of the wire harness. The support plate further supports the wire harness, improving stability during clamping. The correspondingly installed first and second dustproof nets isolate dust, preventing it from entering the wire harness protection box and accumulating. Finally, air convection is formed between the air inlet and outlet. Simultaneously, the motor drives the connecting block and the exhaust fan blades to rotate, accelerating airflow inside the wire harness protection box, preventing heat buildup, and accelerating heat dissipation to avoid burning out the wire harness connectors. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 is a first three-dimensional structural diagram of this utility model;
[0016] Figure 2 is a second three-dimensional structural diagram of this utility model;
[0017] Figure 3 is a cross-sectional view of this utility model;
[0018] Figure 4 is a schematic diagram of the lower protective shell of this utility model;
[0019] Figure 5 is a schematic diagram of the exhaust fan blade of this utility model.
[0020] In the diagram: 1. Upper protective shell; 2. Lower protective shell; 3. Upper clamping plate; 4. Second rubber pad; 5. Connecting block; 6. Hinge; 7. Mounting frame; 8. Mounting plate; 9. Mounting hole; 10. First dustproof net; 11. Second dustproof net; 12. Nut; 13. Upper positioning plate; 14. Lower positioning plate; 15. Second rubber pad; 16. Air inlet; 17. Heat-conducting plate; 18. Support plate; 19. Lower clamping plate; 20. Hex socket head cap screw; 21. Air outlet; 22. Motor; 23. Shaft; 24. Mounting block; 25. Exhaust fan blade. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Please refer to Figures 1-5. This utility model provides the following technical solution: A protective box for automotive wiring harnesses, comprising an upper protective shell 1 and a lower protective shell 2. A motor 22 is fixedly installed at the center inside the upper protective shell 1. The output end of the motor 22 is connected to a rotating shaft 23. A mounting block 24 is fixedly installed at one end of the rotating shaft 23. An exhaust fan blade 25 is fixedly installed on the surface of the mounting block 24. A lower positioning plate 14 is fixedly installed at one end of the surface of the lower protective shell 2. A nut 12 is provided at the bottom of the lower positioning plate 14. An upper positioning plate 13 is fixedly connected to one end of the surface of the upper protective shell 1. An internal hex bolt 20 is provided at the top of the upper positioning plate 13, and the other end of the internal hex bolt 20 is completely... The upper positioning plate 13 and the lower positioning plate 14 are threadedly connected to the nut 12. The upper protective shell 1 has an upper clamping plate 3 fixedly installed on both sides of its surface, and the lower protective shell 2 has a lower clamping plate 19 fixedly installed on both sides of its surface. The upper clamping plate 3 and the lower clamping plate 19 are positioned correspondingly. The upper protective shell 1 has a hinge 6 fixedly connected to one end of its surface, and the lower protective shell 2 has a connecting block 5 fixedly installed to one end of its surface. The hinge 6 is movably connected to the surface of the connecting block 5. The lower protective shell 2 has a support plate 18 inside its interior. The upper protective shell 1 has an air inlet 16 at its top, and the lower protective shell 2 has an air outlet 21 at its bottom. The air inlet 16 and the air outlet 21 are installed correspondingly.
[0023] In this embodiment, the first dustproof net 10 and the second dustproof net 11 work together to isolate dust from the outside, preventing dust from entering the inside of the wire harness protection box and causing dust accumulation, thus keeping the inside of the wire harness protection box clean and tidy.
[0024] In this embodiment, the wire harness protection box can be installed in the corresponding position through the mounting holes 9. At the same time, two sets of corresponding installations are installed. The mounting holes 9 on both sides can also increase the stability of the wire harness protection box installation and prevent it from shaking, which would affect the protection effect on the wire harness.
[0025] In this embodiment, the sealing performance of the wire harness protection box can be increased by the bonding between the first rubber pad 4 and the second rubber pad 15. At the same time, the soft surface of the rubber pad can reduce the wear between the wire harness surface and the top of the upper clamping plate 3 and the lower clamping plate 19, increase the service life of the wire harness, and better protect the connector position of the wire harness.
[0026] In this embodiment, the heat-conducting plate 17 can guide the heat inside the wire harness protection box to its own surface. Combined with the air blown out by the exhaust fan blade 25, it can accelerate the heat dissipation efficiency inside the wire harness protection box, avoid heat accumulation inside the wire harness protection box, and prevent the wire harness connector from being burned due to heat accumulation.
[0027] In this embodiment, the two sets of support plates 18 can provide auxiliary support for the wire harness inside the wire harness protection box, reducing the tension on both ends of the wire harness.
[0028] The working principle and usage process of this utility model are as follows: After the utility model is installed, manually tighten the hex bolt 20 to open the upper protective shell 1, then place the wire harness to be protected on the surface of the lower clamping plate 19. Next, start the motor 22 to drive the rotating shaft 23 to rotate, thereby driving the mounting block 24 and the exhaust fan blade 25 to rotate. Then close the upper protective shell 1 again. The exhaust fan blade 25 will blow out strong air to accelerate the airflow inside the wire harness protection box. With the help of the air inlet 16, air outlet 21 and heat conduction plate 17, the heat inside the wire harness protection box will be carried away. After the upper clamping plate 3 and the lower clamping plate 19 are attached to fix the wire harness, re-pass the hex bolt 20 through the interior of the upper positioning plate 13 and the lower positioning plate 14, tighten the nut 12 to fix the upper protective shell 1 and the lower protective shell 2 again. Then install the wire harness protection box into the corresponding position through the mounting hole 9. All electrical equipment in this device is powered by an external power supply.
[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An automobile wire harness protection box comprising an upper protection case (1) and a lower protection case (2), characterized in that: A motor (22) is fixedly installed in the center of the upper protective shell (1). The output end of the motor (22) is connected to a rotating shaft (23). A mounting block (24) is fixedly installed at one end of the rotating shaft (23). An exhaust fan blade (25) is fixedly installed on the surface of the mounting block (24). A lower positioning plate (14) is fixedly installed at one end of the surface of the lower protective shell (2). A nut (12) is provided at the bottom of the lower positioning plate (14). An upper positioning plate (13) is fixedly connected to one end of the surface of the upper protective shell (1). An internal hex bolt (20) is provided at the top of the upper positioning plate (13). The other end of the internal hex bolt (20) completely penetrates the interior of the upper positioning plate (13) and the lower positioning plate (14) and the nut (25). 2) Threaded connection, upper clamping plates (3) are fixedly installed on both sides of the surface of the upper protective shell (1), and lower clamping plates (19) are fixedly installed on both sides of the surface of the lower protective shell (2). The positions of the upper clamping plates (3) and the lower clamping plates (19) are corresponding. A hinge (6) is fixedly connected to one end of the surface of the upper protective shell (1), and a connecting block (5) is fixedly installed to one end of the surface of the lower protective shell (2). The hinge (6) is movably connected to the surface of the connecting block (5). A support plate (18) is provided inside the lower protective shell (2). An air inlet (16) is opened at the top of the upper protective shell (1), and an air outlet (21) is opened at the bottom of the lower protective shell (2). The air inlet (16) and the air outlet (21) are installed correspondingly.
2. The automotive wiring harness protection box according to claim 1, characterized in that: The top of the upper protective shell (1) is fixedly installed with an installation frame (7), and the interior of the installation frame (7) is connected with a first dustproof net (10).
3. The automotive wiring harness protection box according to claim 2, characterized in that: Mounting plates (8) are fixedly connected to both sides of the surface of the mounting frame (7), and mounting holes (9) are provided inside the mounting plates (8).
4. The automotive wire harness protection box according to claim 1, characterized by: One end of the upper plate (3) is connected to a second rubber pad (15), and one end of the lower plate (19) is connected to a first rubber pad (4), and the first rubber pad (4) and the second rubber pad (15) are installed correspondingly.
5. The automotive wire harness protection box according to claim 1, characterized by: Both sides of the lower protective shell (2) are connected to heat-conducting plates (17).
6. The automotive wire harness protection box according to claim 1, characterized by: The number of the support plates (18) is two sets, and the two sets of support plates (18) are installed correspondingly.
7. The automotive wiring harness protection box according to claim 1, characterized in that: The bottom of the lower protective shell (2) is fixedly connected to a second dustproof net (11).