Anode wire harness with waterproof protection

Abstract

The utility model provides a positive wire harness with waterproof protection, which relates to the field of wire harnesses and comprises a wire harness main body, the wire harness main body comprises an outer sheath, a waterproof layer and an anticorrosive layer are arranged on the inner side of the outer sheath, terminals are arranged at two ends of the wire harness main body, waterproof sleeves are arranged on the outer sides of the terminals, heat shrink tubes are arranged on the outer sides of the waterproof sleeves, and the heat shrink tubes are arranged on the outer sides of the waterproof sleeves. The waterproof sleeve comprises an outer sleeve, a positioning pin is arranged on the inner side of the outer sleeve, the positioning piece comprises elastic teeth, one end of the elastic teeth is connected with an external thread ring, the locking piece comprises a conical pipe, and one end of the conical pipe is connected with an internal thread pipe. The waterproof and anti-corrosion terminal has waterproof and anti-corrosion effects, and can be protected from water and dust when the terminal is not in use and when the terminal is in use.

Description

Technical Field

[0001] This utility model relates to the field of wire harness technology, specifically to a positive electrode wire harness with waterproof protection. Background Technology

[0002] The positive electrode harness is typically composed of copper wires with excellent conductivity and wrapped with high-quality insulation material to ensure the stability and safety of power transmission. In new energy vehicles, the positive electrode harness serves to connect the battery's positive terminal to load devices such as the motor and controller.

[0003] A search revealed existing technology (publication number: CN222483832U), which describes "a waterproof positive electrode harness, comprising a harness body, with harness sleeves movably fitted at both ends of the harness body, two fixing blocks fixedly installed at the outer ends of the two harness sleeves, four fixing blocks having slots, and a connecting rod slidably installed at the inner end of one opposite side of the four fixing blocks, a connecting block fixedly installed at the upper end of the harness sleeve, and a protective shell fixedly installed at the upper end of the connecting block, with a movable door hinged to the front end of the protective shell via a torsion spring. In this invention, the harness undergoes waterproofing treatment, effectively improving its water resistance, enabling it to work normally in humid and harsh environments, enhancing the harness's environmental adaptability, reducing the risk of short circuits and leakage, and improving the harness's safety. Made of a multi-layer structure, it effectively resists chemical corrosion and high-temperature environments, extending the harness's service life."

[0004] While existing waterproof positive electrode harnesses achieve waterproofing, they still have some shortcomings: the protective shell and movable door of existing waterproof positive electrode harnesses cannot provide waterproof protection for the two connected terminals after the terminals are connected to the positive terminal of the battery, because the terminals need to be removed from the protective shell during connection. At the same time, the waterproof coating on the terminals forms a protective film, which may affect the conductivity of the terminals. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, a positive electrode harness with waterproof protection is provided to solve the problems mentioned in the background.

[0006] To achieve the above objectives, a positive electrode harness with waterproof protection is provided, comprising: a harness body, the harness body including an outer sheath, the inner side of which is provided with a waterproof layer and an anti-corrosion layer, terminals at both ends of the harness body, a waterproof sleeve on the outer side of the terminals, a heat shrink tubing on the outer side of the waterproof sleeve, a positioning element connected to the inner end of the heat shrink tubing, and a locking element connected to the outer side of the positioning element, the waterproof sleeve including an outer sleeve, the inner side of which is provided with a positioning pin, the positioning element including elastic teeth, one end of which is connected with an external threaded ring, and the locking element including a tapered tube, one end of which is connected with an internal threaded tube.

[0007] Furthermore, the main body of the wire harness also includes a high-temperature resistant layer, which is located within the anti-corrosion layer. An insulation layer is provided inside the high-temperature resistant layer, and a copper core wire is provided inside the insulation layer.

[0008] Furthermore, the terminal is designed with an L-shaped structure and is connected to the copper core wire.

[0009] Furthermore, the tapered tube and the internally threaded tube are slidably connected to the outside of the harness body, and the tapered tube is made of polypropylene.

[0010] Furthermore, the elastic teeth are evenly spaced along the circumferential edge of the external threaded ring, and the elastic teeth are made of thermoplastic polyurethane.

[0011] Furthermore, the internally threaded pipe is screwed onto the outside of the externally threaded ring, and the elastic teeth are located inside the tapered pipe.

[0012] Furthermore, the heat shrink tubing is sleeved on the outside of the wire harness body, and one end of the heat shrink tubing is clamped and fixed to one end of the external threaded ring.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By utilizing waterproof, anti-corrosion, and high-temperature resistant layers, the main body of the wire harness has waterproof, anti-corrosion, and high-temperature resistant effects. At the same time, it uses terminals and copper core wires for connection, and the L-shaped structure of the terminals makes it easy to connect the terminals to the battery terminals. After connection, the connection is in a straight vertical direction, which facilitates the fitting of heat shrink tubing. That is, after the two terminals are connected, the heat shrink tubing can be fitted downwards on the outside of the terminals, and then the heat shrink tubing is heated to provide waterproof and dustproof protection for both terminals.

[0015] 2. When the wire harness body is not in use, the outer sleeve and positioning pin included in the waterproof sleeve facilitate locking onto the wire harness body and terminal mounting holes, achieving a waterproof and dustproof effect for the terminals. When connecting the terminals of the wire harness body for use, the waterproof sleeve is pulled out, and then the terminals are connected to the battery terminals. At this time, the locking and positioning parts are slid towards the terminal side, and then the heat shrink tubing is fitted onto the outside of the terminal. At this time, the internal thread tube and external thread ring are screwed together, and the tapered tube is squeezed by the elastic teeth, thereby fixing the locking and positioning parts to the outside of the wire harness body, thus providing waterproof and dustproof protection for the connection between the terminal and the copper core wire. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram showing the separation of the outer structure of the wire harness body in an embodiment of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the positioning component according to an embodiment of the present utility model.

[0019] Figure 4 This is a schematic cross-sectional view of the main body of the wire harness according to an embodiment of the present invention.

[0020] In the diagram: 1. Main body of the wire harness; 11. Outer sheath; 12. Waterproof layer; 13. Anti-corrosion layer; 14. High temperature resistant layer; 15. Insulation layer; 16. Copper core wire; 17. Terminal; 2. Locking component; 21. Tapered tube; 22. Internally threaded tube; 3. Positioning component; 31. Elastic tooth; 32. Externally threaded ring; 4. Heat shrink tubing; 5. Waterproof sleeve; 51. Outer sleeve; 52. Positioning pin. Detailed Implementation

[0021] Reference Figures 1 to 4 As shown, this utility model provides a positive electrode wire harness with waterproof protection, including: a wire harness body 1, the wire harness body 1 including an outer sheath 11, and the inner side of the outer sheath 11 is provided with a waterproof layer 12 and an anti-corrosion layer 13, and terminals 17 are provided at both ends of the wire harness body 1, a waterproof sleeve 5 is provided on the outer side of the terminal 17, and a heat shrink tube 4 is provided on the outer side of the waterproof sleeve 5, and a positioning member 3 is connected to the inner end of the heat shrink tube 4, and a locking member 2 is connected to the outer side of the positioning member 3, the waterproof sleeve 5 including an outer sleeve 51, and a positioning pin 52 is provided on the inner side of the outer sleeve 51, the positioning member 3 including an elastic tooth 31, and an external threaded ring 32 is connected to one end of the elastic tooth 31, and the locking member 2 including a tapered tube 21, and an internal threaded tube 22 is connected to one end of the tapered tube 21.

[0022] In this embodiment, the main body 1, locking member 2, positioning member 3, heat shrink tubing, and waterproof sleeve 5 constitute the overall structure of the positive electrode wire harness with waterproof protection involved in this application.

[0023] Specifically, the waterproof sleeve 5 is made of plastic, and the positioning pin 52 is inserted into the mounting hole of the terminal 17 to limit and fix the waterproof sleeve 5.

[0024] Specifically, the outer sheath 11 is made of polytetrafluoroethylene, which has the effect of preventing water penetration; the waterproof layer 12 is made of polyvinyl chloride, which has good flexibility and weather resistance; and the anti-corrosion layer 13 is made of vinyl fluororubber, which has good resistance to corrosive substances such as acids, alkalis and solvents.

[0025] like Figures 2 to 3 In the wire harness body 1, a high-temperature resistant layer 14 is also included, which is located on the anti-corrosion layer 13. An insulation layer 15 is provided inside the high-temperature resistant layer 14, and a copper core wire 16 is provided inside the insulation layer 15. The terminal 17 is designed with an L-shaped structure and is connected to the copper core wire 16. A tapered tube 21 and an internally threaded tube 22 are slidably connected to the outside of the wire harness body 1. The tapered tube 21 is made of polypropylene. Elastic teeth 31 are evenly spaced along the circumferential edge of the externally threaded ring 32 and are made of thermoplastic polyurethane. The internally threaded tube 22 is screwed onto the outside of the externally threaded ring 32, and the elastic teeth 31 are located inside the tapered tube 21. A heat-shrinkable tube 4 is sleeved on the outside of the wire harness body 1, and one end of the heat-shrinkable tube 4 is clamped and fixed to one end of the externally threaded ring 32.

[0026] Specifically, the high-temperature resistant layer 14 is made of silicone rubber, which gives the main body 1 of the wire harness good elasticity and resistance to high and low temperatures, making it suitable for harsher environments.

[0027] Specifically, terminal 17 is made of copper and is integrated with copper core wire 16.

[0028] Specifically, the tapered tube 21 is made of polypropylene, and the inner side of the polypropylene is provided with an embedded metal wire structure, which increases the structural strength of the tapered tube 21, so that when it comes into contact with the elastic tooth 31, it can squeeze the elastic tooth 31, thereby fixing and locking the positioning member 3.

[0029] Specifically, the end of the external threaded ring 32 away from the elastic tooth 31 is provided with a ring-shaped clamping groove, and one end of the heat shrink tube 4 is clamped in the ring-shaped clamping groove, which is a detachable structure.

[0030] It should be noted that when it is necessary to disassemble the terminal 17, first disassemble the locking part 2 and the positioning part 3, and then disassemble the heat shrink tubing 4 with a tool to facilitate the disassembly of the terminal 17. When reinstalling, a new section of heat shrink tubing 4 needs to be prepared and connected to the external threaded ring 32. After the terminal 17 is connected, the heat shrink tubing 4 can be heat-shrinked again.

[0031] In use, the waterproof, anti-corrosion, and high-temperature resistant layers provide the main body of the wiring harness with waterproof, anti-corrosion, and high-temperature resistance properties. It utilizes terminals and copper core wires for connection, and the L-shaped structure of the terminals facilitates connection to the battery terminals. After connection, the connection is vertically straight, allowing for easy application of heat shrink tubing. After connecting two terminals, the heat shrink tubing can be slipped downwards onto the outside of the terminals, and then heated to provide waterproof and dustproof protection to both terminals. When the main body of the wiring harness is not in use, the waterproof sleeve... The sleeve and positioning pin facilitate locking onto the wiring harness body and terminal mounting holes, achieving waterproof and dustproof protection for the terminals. When connecting the terminals to the wiring harness body, the waterproof sleeve is removed, and then the terminals are connected to the battery terminals. The locking and positioning parts are then slid towards the terminal side, and the heat shrink tubing is fitted onto the outside of the terminal. The internal threaded tube and external threaded ring are screwed together, allowing the tapered tube to be compressed by the elastic teeth, thereby fixing the locking and positioning parts to the outside of the wiring harness body, thus providing waterproof and dustproof protection for the connection between the terminal and the copper core wire.

[0032] The waterproof positive electrode harness of this invention can effectively solve the problems mentioned in the background technology. It achieves waterproof and corrosion-resistant effects on the basis of existing waterproof positive electrode harness technology, and can also provide waterproof and dustproof protection for the terminals when not in use and when in use.

Claims

1. A positive pole harness having waterproof protection, comprising: The wire harness body (1) is characterized in that the wire harness body (1) comprises an outer sheath (11), and a waterproof layer (12) and a corrosion-resistant layer (13) are arranged on the inner side of the outer sheath (11); terminals (17) are arranged at both ends of the wire harness body (1); a waterproof sleeve (5) is arranged on the outer side of the terminal (17); a heat shrink tube (4) is arranged on the outer side of the waterproof sleeve (5); a positioning piece (3) is connected to the inner side of the heat shrink tube (4); a locking piece (2) is connected to the outer side of the positioning piece (3); the waterproof sleeve (5) comprises an outer sleeve (51), and a positioning pin (52) is arranged on the inner side of the outer sleeve (51); the positioning piece (3) comprises an elastic tooth (31), and an outer threaded ring (32) is connected to one end of the elastic tooth (31); and the locking piece (2) comprises a conical tube (21), and an inner threaded tube (22) is connected to one end of the conical tube (21).

2. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The wire harness body (1) further comprises a high-temperature-resistant layer (14), and the high-temperature-resistant layer (14) is arranged on the corrosion-resistant layer (13); an insulating layer (15) is arranged on the inner side of the high-temperature-resistant layer (14); and a copper core wire (16) is arranged on the inner side of the insulating layer (15).

3. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The terminal (17) is in an L-shaped structure, and the terminal (17) is connected to the copper core wire (16).

4. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The conical tube (21) and the inner threaded tube (22) are in sliding connection on the outer side of the wire harness body (1), and the conical tube (21) is made of polypropylene.

5. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The elastic tooth (31) is arranged at equal intervals along the circumferential edge of the outer threaded ring (32), and the elastic tooth (31) is made of thermoplastic polyurethane.

6. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The inner threaded tube (22) is screwed on the outer side of the outer threaded ring (32), and the elastic tooth (31) is arranged on the inner side of the conical tube (21).

7. The positive terminal harness with waterproof protection according to claim 1, characterized in that, The heat shrink tube (4) is sleeved on the outer side of the wire harness body (1), and one end of the heat shrink tube (4) is clamped and fixed to one end of the outer threaded ring (32).

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