A waterproof and silicone oil-proof wiring harness

Abstract

The utility model discloses a waterproof and silicone oil-proof wiring harness, comprising a rubber core, a sealing ring is arranged on one side of the rubber core, a plurality of fool-proof grooves are opened on the side of the outer ring of the rubber core head, a plurality of terminals are installed in the rubber core, a wire is connected to the rear end of each terminal, an inner film is arranged on the outer side of the rubber core, an outer film is arranged on the outer side of the inner film, a nut is arranged on one end of the outer side of the outer film, a heat shrink tube is arranged on the outer side between the terminal and the wire, glue is arranged on the outer side of the terminal, a metal sleeve is arranged on the other end of the outer side of the inner film, an installation panel is arranged in the middle of the metal sleeve, the lower surface of the installation panel is connected to the metal sleeve through a fluororubber sealing ring, the upper surface of the installation panel is fixed with metal through a nut, the wire is connected to a signal terminal, and the signal terminal is matched with a signal rubber core. The wiring harness of the present application uses glue and the design of inner film and outer film, and each part is double wrapped by the inner film and the outer film to form an insulation layer with the outside world. Under the action of the insulation layer, the devices in the device can achieve better waterproof and silicone oil resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harnesses, in particular to a waterproof and silicone oil-proof wire harness. Background Art

[0002] With the further implementation of national energy conservation and emission reduction policies such as photovoltaics, solar energy, wind power and new energy vehicles, the current carbon emissions are mostly from equipment that uses oil as energy, such as cars and ships. Whether it is an electric car or an electric ship, its key energy supply is batteries. The battery system is a very complex system that requires very strong software and hardware for good compatibility. At the same time, safety must also be considered, especially for electric ships. The number and capacity of its battery packs are much larger than those of electric cars. All battery packs are connected in series through wiring harnesses, and the data fed back between each battery pack is also transmitted to the BMS system through the wiring harness. The BMS system receives the data fed back by each battery pack and then monitors it. If the data is abnormal, it will alarm immediately, so that the operating status of each battery pack can be effectively monitored to avoid quality accidents.

[0003] The working environment of high-power battery packs is relatively complex. For example, electric ships will work under high temperature and high humidity for a long time. To cool the battery pack, the entire battery pack is generally liquid-cooled, and silicone oil is generally used for better liquid cooling. The entire battery pack is soaked in silicone oil, and the temperature of the battery pack will be greatly relieved when it is working. However, silicone oil has strong permeability. After long-term immersion, a large amount of silicone oil will be hidden in the traditional wiring harness. Under the action of silicone oil, the terminal contact will be seriously affected, and poor contact may occur. In order to ensure the normal operation of the equipment and provide a long service life for the equipment, the battery pack must be connected with a wiring harness with strong waterproof and silicone oil resistance. Utility Model Content

[0004] In view of the above technical problems in the related art, the utility model provides a waterproof and silicone oil-proof wiring harness, which can solve the above problems.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] A waterproof and silicone oil-proof wiring harness, characterized in that it includes a rubber core, a sealing ring is provided on one side of the rubber core, a plurality of fool-proof grooves are provided on the side of the outer ring of the rubber core head, a plurality of terminals are installed in the rubber core, a wire is connected to the rear end of each terminal, an inner film is provided on the outer side of the rubber core, an outer film is provided on the outer side of the inner film, a nut is provided on one end of the outer side of the outer film, a heat shrink tube is provided on the outer side between each terminal and each wire, glue is provided on the outer side of the terminal, a metal sleeve is provided on the other end of the outer side of the inner film, an installation panel is provided in the middle of the metal sleeve, the lower surface of the installation panel is connected to the metal sleeve by a fluororubber sealing ring, the upper surface of the installation panel is fixed with a metal sleeve by a nut, the wire is connected to a signal terminal, and the signal terminal is matched with a signal rubber core.

[0007] Furthermore, a plurality of rubber core anti-rotation grooves are provided on the outer side of the rubber core, a plurality of rubber core inner film glue filling grooves are provided on the other side of the outer surface of the rubber core, a plurality of rubber core jacks matching the terminals are provided inside the rubber core, and a rubber core glue pouring groove matching the glue is provided inside the rubber core.

[0008] Furthermore, a terminal clamping point is arranged in the middle of the terminal, a terminal rivet copper wire is arranged at the tail of the terminal, a terminal rivet iron sheet is arranged at the tail of the terminal, a terminal threading hole is opened through the bottom of the terminal, and a terminal plane is arranged on the outer circle of the terminal threading hole.

[0009] Furthermore, the outer ring of the nut is provided with a plurality of nut anti-slip ribs.

[0010] Furthermore, a plurality of inner membrane grooves are provided on the outer side of the inner membrane.

[0011] Furthermore, the electric wire includes an internal electric wire copper wire and a core wire sheath outside the electric wire copper wire.

[0012] Furthermore, a plurality of mounting grooves are provided at one end of the metal sleeve, a metal sleeve groove is provided in the middle of the metal sleeve, a metal sleeve sealing ring groove matching the fluororubber sealing ring is provided in the middle of the metal sleeve, a metal sleeve external thread is provided on the outer surface of the other end of the metal sleeve, an internal nut thread matching the external thread of the metal sleeve is provided on the inner side of the nut, and a metal sleeve anti-rotation plane is provided in the middle of the metal sleeve.

[0013] Furthermore, the installation panel is provided with an anti-rotation plane of the installation panel at the opening, and the outer surface of the outer membrane is provided with a plurality of outer membrane anti-slip ribs.

[0014] Beneficial effects of the utility model: the wiring harness of the present application uses glue and an inner and outer film design, and the wires, terminals, glue, rubber core, core copper wire and terminal riveted parts are doubly wrapped by the inner and outer films, forming an isolation layer with the outside world. Under the action of the isolation layer, the devices in the device can achieve better waterproof and silicone oil resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] The utility model is further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 It is an overall schematic diagram of a waterproof and silicone oil-proof wiring harness according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the rubber core structure of a waterproof and silicone oil-proof wiring harness according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic structural diagram of a waterproof and silicone oil-proof wiring harness according to an embodiment of the utility model;

[0020] Figure 4 It is an exploded view of a waterproof and silicone oil-proof wiring harness according to an embodiment of the utility model;

[0021] Figure 5 It is a diagram of the inner membrane rubber coating of a waterproof and silicone oil-proof wiring harness according to an embodiment of the utility model;

[0022] Figure 6 This is a diagram of the outer film rubber coating of a waterproof and silicone oil-proof wiring harness described in an embodiment of the utility model;

[0023] In the figure:

[0024] 1. Sealing ring; 2. Rubber core; 3. Terminal; 4. Glue; 5. Nut; 6. Inner film; 7. Heat shrink tube; 8. Wire; 9. Metal sleeve; 10. Fluorine rubber sealing ring; 11. Mounting panel; 12. Nut; 13. Signal terminal; 14. Signal rubber core; 15. Outer film; 16. Rubber core anti-rotation groove; 17. Rubber core inner film filling groove; 18. Rubber core jack; 19. Rubber core filling groove; 20. Terminal clamping point; 21. Terminal riveted copper wire; 22. Terminal riveted iron sheet; 23. Terminal threading hole; 24. Terminal plane; 25. Nut anti-skid ribs; 26. Inner membrane groove; 27. Wire copper wire; 28. Core wire outer skin; 29. ​​Installation groove; 30. Metal sleeve groove; 31. Metal sleeve sealing ring groove; 32. Metal sleeve external thread; 33. Installation panel anti-rotation plane; 34. Nut internal thread; 35. Outer membrane anti-skid ribs; 36. Anti-fool groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0026] like Figure 1-6 As shown, according to the utility model, a waterproof and silicone oil-proof wiring harness is disclosed, characterized in that: it includes a rubber core 2, a sealing ring 1 is arranged on one side of the rubber core 2, a plurality of fool-proof grooves 36 are opened on the side of the outer ring of the head of the rubber core 2, a plurality of terminals 3 are installed in the rubber core 2, and the rear end of each terminal 3 is connected to a wire 8, an inner film 6 is arranged on the outer side of the rubber core 2, an outer film 15 is arranged on the outer side of the inner film 6, a nut 5 is arranged on one end of the outer side of the outer film 15, a heat shrink tube 7 is arranged on the outer side between each terminal 3 and each wire 8, glue 4 is arranged on the outer side of the terminal 3, a metal sleeve 9 is arranged on the other end of the outer side of the inner film 6, an installation panel 11 is arranged in the middle of the metal sleeve 9, the lower surface of the installation panel 11 is connected to the metal sleeve 9 through a fluorine rubber sealing ring 10, and the upper surface of the installation panel 11 is fixed with the metal sleeve 9 through a nut 12, the wire 8 is connected to a signal terminal 13, and the signal terminal 13 is matched with a signal rubber core 14;

[0027] In one embodiment of the utility model, the outer side of the rubber core 2 is provided with a plurality of rubber core anti-rotation grooves 16, the other side of the outer surface of the rubber core 2 is provided with a plurality of ring rubber core inner film glue filling grooves 17, the inside of the rubber core 2 is provided with a plurality of rubber core jacks 18 matching the terminals 3, and the inside of the rubber core 2 is provided with a rubber core glue pouring groove 19 matching the glue 4;

[0028] In one embodiment of the utility model, the middle of each terminal 3 is provided with a terminal clamping point 20, the tail of each terminal 3 is provided with a terminal riveted copper wire 21, the tail of each terminal 3 is provided with a terminal riveted iron sheet 22, the bottom of each terminal 3 is provided with a terminal threading hole 23, and the outer circle of each terminal threading hole 23 is provided with a terminal plane 24;

[0029] In one embodiment of the utility model, the outer ring of the nut 5 is provided with a plurality of nut anti-slip ribs (25) 25, the outer side of the inner membrane 6 is provided with a plurality of inner membrane grooves 26, and the electric wire 8 includes an inner wire copper wire 27 and a core wire outer skin 28 outside the wire copper wire 27;

[0030] In one embodiment of the utility model, a plurality of mounting grooves 29 are provided at one end of the metal sleeve 9, a metal sleeve groove 30 is provided in the middle of the metal sleeve 9, a metal sleeve sealing ring groove 31 matching the fluororubber sealing ring 10 is provided in the middle of the metal sleeve 9, a metal sleeve external thread 32 is provided on the outer surface of the other end of the metal sleeve 9, a nut internal thread 34 matching the metal sleeve external thread 32 is provided on the inner side of the nut 12, a metal sleeve anti-rotation plane is provided in the middle of the metal sleeve 9, a mounting panel anti-rotation plane 33 is provided at the opening of the mounting panel 11, and a plurality of outer membrane anti-slip ribs 35 are provided on the outer surface of the outer membrane 15.

[0031] In order to achieve better waterproof and silicone oil resistance, the terminal of the present application adopts a solid structure, and its cross-section is solid without any gaps, which can ensure good airtightness. According to its assembly process, first the outer skin of the core wire is peeled off to expose the copper wire, and the copper wire is inserted into the threading hole of the corresponding terminal. After being inserted, it is riveted by the tooling. After riveting, the copper wire of the wire is tightly wrapped by the riveted copper wire of the terminal. Under the action of the tooling force, the copper wire of the wire and the riveted copper wire of the terminal produce contact and good tension. Similarly, the outer skin of the core wire is also tightly wrapped by the riveted wire skin of the terminal. After wrapping, the tension between the wire and the terminal is further increased, thereby further improving the product quality. After riveting, the wire and the terminal are connected. After the connection is completed, the terminal with the wire is inserted into the rubber core jack. In order to further reduce the assembly gap between the terminal and the rubber core and improve the stability of the terminal after assembly, a terminal card point is designed on the terminal. The card point and the terminal jack are interference fit. The interference fit will achieve zero gap and the terminal has a certain holding force. When the terminal has holding force, its relative position in the rubber core jack will be more stable. In addition, in order to prevent short circuit between the terminals, a heat shrink tube is covered on the outside of the terminal. After the terminal and the rubber core are assembled, glue is used to fill the rubber core's glue filling groove with glue. The glue filling position will exceed the terminal plane. After exceeding the terminal plane, even if a large air pressure blows in from the copper wire inside the wire core, the air pressure will not penetrate out due to a layer of glue on the terminal plane; the cross-section of the terminal in this application is a solid structure, and the air pressure will not penetrate to the front of the rubber core jack, thereby achieving the purpose of waterproofing and silicone oil resistance. In order to further enhance the waterproofness and silicone oil resistance of the entire product, after filling the glue, it is placed in the injection mold for molding; in order to achieve better results, molding is divided into inner film molding and outer film molding. After the inner film is molded, the inner film plastic will wrap the metal sleeve, rubber core, core wire, terminal and glue. In order to ensure the wrapping between the inner film and the rubber core The rubber core is designed with a rubber core inner film filling groove. When the inner film is formed, the rubber core inner film filling groove will be completely filled with inner film plastic. After filling, the inner film and the rubber core will become tighter. In the same way, the metal sleeve is also designed with installation grooves and metal sleeve grooves. After the inner film is formed, the metal sleeve will also be filled with inner film plastic. After filling, the metal sleeve and the inner film will become tighter. After the inner film is formed, the outer film is formed. The outer film forming will completely wrap the inner film and further wrap the metal sleeve. In order to improve the wrapping between the inner film and the outer film, a number of grooves are designed on the inner film. After the outer film is formed, the several groove planes on the inner film will be completely filled with outer film plastic. After filling, the inner film and the outer film will become tighter. The wires, terminals, glue, rubber core, core copper wire and terminal riveting parts are double wrapped by the inner film and the outer film, forming an isolation layer from the outside world. Under the effect of the isolation layer, the devices protected inside are not easily oxidized, and it is not easy for water, silicone oil and other liquids to enter the interior, thereby greatly improving the waterproof and silicone oil resistance of the entire device.

[0032] The device of the present application is a through-the-wall installation. To ensure the consistency of direction after installation, the opening on the installation panel is provided with an anti-rotation plane, and the metal sleeve is also provided with an anti-rotation plane. This anti-rotation plane can ensure that the product does not slip during installation. Before installation, the entire product is passed through the installation panel hole, and then the fluorine sealing ring is put into the metal sleeve sealing ring groove. After the fluorine rubber sealing ring is installed, it is fastened with the inner thread of the nut and the outer thread of the metal. Under the continued tightening of the nut, the fluorine rubber sealing ring will achieve better sealing performance through the expansion and elongation of the material itself.

[0033] After the outer film is formed, the sealing ring is installed on the rubber core. When the product is inserted into the other end, the nut of the device is tightened with the nut on the other end. In order to improve operability and feel, the outer ring of the nut is designed with several anti-slip ribs. The anti-slip ribs can increase friction, making it easy to install with bare hands. As the nut and the screw on the other end continue to be tightened, the sealing ring also provides good sealing through the expansion and extensibility of the material itself.

[0034] In order to enable the device to achieve automated production, a rubber core anti-rotation groove is designed on the rubber core. This anti-rotation groove can help the automatic feeding equipment distinguish the direction to ensure the consistency of direction during automated production and feeding; an anti-fool groove is designed on the rubber core, so that no errors will occur during blind insertion, reducing damage to the rubber core during use.

[0035] The other end of the product is not limited to connecting to any specification of signal plug or signal socket. This application only provides a design reference. It consists of a signal rubber core and a signal terminal.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof and silicone oil-proof wiring harness, characterized in that: The invention comprises a rubber core (2), a sealing ring (1) is arranged on one side of the rubber core (2), a plurality of foolproof grooves (36) are provided on the side of the outer ring of the head of the rubber core (2), a plurality of terminals (3) are installed in the rubber core (2), a rear end of each of the terminals (3) is connected to a wire (8), an inner film (6) is arranged on the outer side of the rubber core (2), an outer film (15) is arranged on the outer side of the inner film (6), a nut (5) is arranged on one end of the outer side of the outer film (15), and a screw cap (5) is arranged on the outer side between each of the terminals (3) and each of the wires (8). A heat shrink tube (7) is arranged, glue (4) is arranged on the outside of the terminal (3), a metal sleeve (9) is arranged on the other end of the outside of the inner membrane (6), a mounting panel (11) is arranged in the middle of the metal sleeve (9), the lower surface of the mounting panel (11) is connected to the metal sleeve (9) via a fluororubber sealing ring (10), the upper surface of the mounting panel (11) is fixed with the metal sleeve (9) via a nut (12), the electric wire (8) is connected to a signal terminal (13), and the signal terminal (13) is matched with a signal glue core (14).

2. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: The outer side of the rubber core (2) is provided with a plurality of rubber core anti-rotation grooves (16), the other side of the outer surface of the rubber core (2) is provided with a plurality of ring rubber core inner film glue filling grooves (17), the inside of the rubber core (2) is provided with a plurality of rubber core plug holes (18) matching the terminals (3), and the inside of the rubber core (2) is provided with a rubber core glue pouring groove (19) matching the glue (4).

3. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: The middle of each terminal (3) is provided with a terminal clamping point (20), the tail of each terminal (3) is provided with a terminal riveted copper wire portion (21), the tail of each terminal (3) is provided with a terminal riveted iron sheet portion (22), a terminal threading hole (23) is provided through the bottom of each terminal (3), and a terminal plane (24) is provided around the outer ring of each terminal threading hole (23).

4. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: The outer ring of the nut (5) is provided with a plurality of nut anti-slip ribs (25).

5. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: A plurality of inner membrane grooves (26) are formed on the outer side of the inner membrane (6).

6. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: The electric wire (8) comprises an internal electric wire copper wire (27) and a core wire sheath (28) outside the electric wire copper wire (27).

7. A waterproof and silicone oil resistant wiring harness according to claim 1, characterized in that: A plurality of mounting grooves (29) are formed at one end of the metal sleeve (9), a metal sleeve groove (30) is formed in the middle of the metal sleeve (9), a metal sleeve sealing ring groove (31) matching the fluororubber sealing ring (10) is formed in the middle of the metal sleeve (9), a metal sleeve external thread (32) is formed on the outer surface of the other end of the metal sleeve (9), a nut internal thread (34) matching the metal sleeve external thread (32) is formed on the inner side of the nut (12), and a metal sleeve anti-rotation plane is formed in the middle of the metal sleeve (9).

8. The waterproof and silicone oil-proof wiring harness according to claim 1, characterized in that: The installation panel (11) is provided with an installation panel anti-rotation plane (33) at the opening, and the outer surface of the outer membrane (15) is provided with a plurality of outer membrane anti-slip ribs (35).

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