Wire harness connector capable of preventing silicone oil from permeating

Abstract

The wire harness connector comprises a wire and a contact terminal, the wire comprises a plurality of wire copper wires, one ends of the wire copper wires penetrate through contact terminal drill holes of the contact terminal in a one-to-one correspondence mode, and the other ends of the wire copper wires are connected with a connector terminal and a connector rubber core. The outer side of the contact terminal is provided with a wire sheath riveting part and a wire copper wire riveting part which are used for riveting, the contact terminal is sleeved with a rubber core, the contact terminal is in interference fit with a rubber core hole of the rubber core, and the outer parts of three terminals in the middle of the contact terminal are provided with a middle terminal sleeve heat shrink tube and a heat shrink tube which are used for avoiding short circuit. A sealant for preventing silicone oil from penetrating is filled in the rubber core hole; the four safety barriers of the product provided by the utility model are adopted; when the device is installed in various electrical equipment which is provided with a box body structure and is filled with silicone oil in the box body, the silicone oil is effectively prevented from permeating into the product, so that various equipment can be protected, the service life of the equipment is greatly prolonged, and the safety of the equipment is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness connector technology, and more specifically, to a wire harness connector that prevents silicone oil penetration. Background Technology

[0002] Silicone oil is a polyorganosiloxane with varying degrees of polymerization and a chain-like structure. It is produced by hydrolyzing dimethyldichlorosilane to obtain a primary condensation cyclic polymer. This cyclic polymer is then cracked and distilled to obtain a lower-cyclic polymer. The cyclic polymer, along with a capping agent and catalyst, is then polymerized to obtain mixtures with different degrees of polymerization. Low-boiling-point substances are removed by vacuum distillation to obtain the final silicone oil. Silicone oil possesses excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, and low surface tension. Furthermore, it exhibits a low viscosity-temperature coefficient, high compressibility, and some varieties even demonstrate radiation resistance. Silicone oil also possesses many other unique properties, such as oxidation resistance, high flash point, low volatility, non-corrosiveness to metals, and non-toxicity. Therefore, it is widely used in devices and equipment that generate high heat. For example, battery packs are often soaked in silicone oil for better heat dissipation. Soaking the battery pack in silicone oil facilitates cooling and heat dissipation during battery operation, thereby extending battery life and ensuring battery safety. While silicone oil has many advantages, it has a fatal flaw: its extremely high permeability. Furthermore, during product operation, it exhibits electromagnetic attraction, meaning it tends to creep towards the direction of current, further enhancing its permeability. This presents a new challenge to the sealing design of devices. Many existing devices experience silicone oil leakage within a short period of operation. If the device operates continuously for an extended period, all the silicone oil may have completely permeated the device. Once permeated, there is no cooling or heat dissipation effect, potentially causing the battery to overheat instantly. Continuous operation at high temperatures could very likely lead to explosion or spontaneous combustion, resulting in a fatal safety accident.

[0003] To completely eliminate the aforementioned hidden dangers, this invention provides a novel process and method for preventing silicone oil penetration. Its application can prevent silicone oil penetration, allowing devices or equipment to be protected by silicone oil for a long time, thereby ensuring the safety of devices or equipment during operation. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a wire harness connector that prevents silicone oil penetration, which can overcome the above-mentioned shortcomings of the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0006] A wire harness connector that prevents silicone oil penetration;

[0007] This silicone oil-proof wire harness connector includes wires and contact terminals. The wires consist of several copper wires, one end of which is threaded through a corresponding hole in the contact terminal. The other end of each copper wire is connected to a connector terminal and a connector core. The outer side of the contact terminal has a wire sheath riveting point and a copper wire riveting point. A core is fitted over the contact terminal, and the contact terminal and the core hole are interference-fitted. The three middle terminals of the contact terminal are fitted with heat-shrink tubing to prevent short circuits. The core hole is filled with sealant to prevent silicone oil penetration, and a fourth sealing ring is fitted on the core.

[0008] Furthermore, the wire is riveted and fitted with a wire sleeve and a copper sleeve from the inside out. The copper sleeve has a copper sleeve limiting surface. A bolt is fitted on the outside of the copper sleeve. A tail sealant is provided between the copper sleeve and the bolt. The bolt has an internal bolt limiting surface corresponding to the copper sleeve limiting surface. The tail of the bolt has a bolt tail inner ring for filling with sealant. The end of the bolt has a corresponding nut. The wire sleeve, the wire, the copper sleeve and the bolt are fused together as a whole under the action of the sealant filled in the bolt tail inner ring.

[0009] Furthermore, the bolt is provided with a bolt groove, and a second sealing ring is fitted on the bolt groove; the glue core is provided with a glue core groove for fitting a third sealing ring, and the glue core is provided with an upper shell and a lower shell connected by screws, and the side of the upper shell is provided with an upper shell glue injection port for glue filling.

[0010] Furthermore, the upper and lower shells, which are connected by screws, are externally molded with an outer film.

[0011] Furthermore, the cross-section of the contact terminal is a solid cross-section structure that blocks the permeation and flow of silicone oil.

[0012] Furthermore, the outer ring of the sleeve is interference-fitted with the inner ring of the bolt; a first sealing ring is provided between the bolt and the corresponding nut.

[0013] Furthermore, the copper wires within the wire are pressed together, flattened, and tightly arranged under the riveting action of the wire sleeve and the copper sleeve; the outer sheath of the wire and the wire sleeve hole of the wire sleeve are pressed together, flattened, and tightly arranged under the riveting action.

[0014] Furthermore, the outer membrane is made of a plastic with good resistance to silicone oil; the core is made of a fluoropolymer plastic with good resistance to silicone oil; the sleeve is made of an elastic sealing material with good resistance to silicone oil; and the bolt is made of metal or plastic.

[0015] The beneficial effects of this utility model are as follows: Through the close cooperation of the four key anti-silicone oil penetration technology solutions of this utility model, the product forms four safety barriers; this utility model product is finally installed in various electrical, electronic and power equipment with a box structure and silicone oil inside the box. Because it has the ability to prevent silicone oil from penetrating into the product, it can effectively protect various equipment, thereby greatly improving the service life and safety of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view exploded view of a wire harness connector for preventing silicone oil penetration according to an embodiment of the present invention;

[0018] Figure 2 This is a second-view exploded view of a wire harness connector for preventing silicone oil penetration according to an embodiment of the present invention;

[0019] Figure 3 This is a third-view exploded view of a wire harness connector for preventing silicone oil penetration according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram illustrating the specific usage state of a wire harness connector that prevents silicone oil penetration according to an embodiment of this utility model;

[0021] In the diagram: 1. Wire harness product; 2. Product mounting enclosure; 201. Silicone oil cavity for enclosure; 3. Outer membrane; 4. Upper shell; 401. Screw hole in upper shell; 402. Glue injection port in upper shell; 5. Lower shell; 501. Screw hole in lower shell; 6. Second sealing ring; 7. Screw; 8. Heat shrink tubing; 9. Seal for semi-finished product; 10. Contact terminal; 1001. Heat shrink tubing added to intermediate terminal; 1002. Riveting joint of wire sheath; 1003. Drilling hole for contact terminal; 1004. Riveting joint of copper wire in wire; 11. Screw 12. Third sealing ring; 13. Glue core; 1301. Glue core hole; 1302. Glue core slot; 14. Fourth sealing ring; 15. Wire sleeve; 1501. Wire sleeve outer ring; 16. Copper sleeve; 1601. Copper sleeve limiting surface; 17. Tail sealant; 18. Wire; 19. Bolt; 1901. Bolt slot; 1902. Bolt inner ring; 1903. Bolt tail inner ring; 20. First sealing ring; 21. Nut; 22. Connector terminal; 23. Connector glue core; 24. Wire copper wire. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0023] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0024] like Figure 1-4 As shown, a silicone oil-proof wire harness connector according to an embodiment of the present invention includes a wire 18 and a contact terminal 10. The wire 18 includes a plurality of copper wires 24. One end of each copper wire 24 is inserted into a contact terminal hole 1003 of the contact terminal 10. The other end of each copper wire 24 is connected to a connector terminal 22 and a connector core 23. The outer side of the contact terminal 10 is provided with a wire sheath riveting point 1002 and a copper wire riveting point 1004 for riveting. A core 13 is sleeved on the outside of the contact terminal 10. The contact terminal 10 and the core hole 1301 of the core 13 are interference-fitted. The three middle terminals of the contact terminal 10 are provided with heat shrink tubing 1001 and heat shrink tubing 8 to prevent short circuits. The core hole 1301 is filled with sealant to prevent silicone oil from penetrating. A fourth sealing ring 14 is sleeved on the core 13.

[0025] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, the wire 18 is sequentially riveted and fitted with a wire sleeve 15 and a copper sleeve 16 from the inside out. The copper sleeve 16 is provided with a copper sleeve limiting surface 1601. A bolt 19 is fitted on the outside of the copper sleeve 16. A tail sealant 17 is provided between the copper sleeve 16 and the bolt 19. The bolt 19 is provided with an internal bolt limiting surface corresponding to the copper sleeve limiting surface 1601. The tail of the bolt 19 is provided with a bolt tail inner ring 1903 for filling with sealant. The end of the bolt 19 is provided with a corresponding nut 21. The wire sleeve 15, the wire 18, the copper sleeve 16, and the bolt 19 are fused together under the action of the sealant filled in the bolt tail inner ring 1903.

[0026] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, the bolt 19 is provided with a bolt groove 1901, and a second sealing ring 6 is fitted on the bolt groove 1901; the core 13 is provided with a core groove 1302 for fitting a third sealing ring 12; the core 13 is provided with an upper shell 4 and a lower shell 5 connected by screws 7; and the side of the upper shell 4 is provided with an upper shell glue injection port 402 for glue injection.

[0027] According to an embodiment of the present invention, a wire harness connector that prevents silicone oil penetration is provided, in a specific embodiment, the upper shell 4 and the lower shell 5 connected by screws 7 are provided with an outer membrane 3 by injection molding.

[0028] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, the cross-section of the contact terminal 10 is a solid cross-section structure that blocks the flow of silicone oil penetration.

[0029] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, the outer ring 1501 of the wire sleeve 15 is interference-fitted with the inner ring 1902 of the bolt 19; a first sealing ring 20 is provided between the bolt 19 and the corresponding nut 21.

[0030] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, a plurality of copper wires 24 within the wire 18 are pressed together, flattened, and tightly arranged under the riveting action of the wire sleeve 15 and the copper sleeve 16; the outer sheath of the wire 18 and the wire sleeve hole of the wire sleeve 15 are pressed together, flattened, and tightly arranged under the riveting action.

[0031] According to an embodiment of the present invention, a wire harness connector for preventing silicone oil penetration is provided. In a specific embodiment, the outer membrane 3 is made of a plastic with good silicone oil resistance; the core 13 is made of a fluoropolymer plastic with good silicone oil resistance; the sleeve 15 is made of an elastic sealing material with good silicone oil resistance; and the bolt 19 is made of metal or plastic.

[0032] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0033] In practical use, the silicone oil-proof wire harness connector according to this utility model includes a connector (including connector core 23 and connector terminal 22), nut 21, first sealing ring 20, bolt 19, wire 18, tail sealant 17, copper sleeve 16, wire sleeve 15, outer membrane 3, lower shell 5, second sealing ring 6, upper shell 4, semi-finished sealant 9, heat shrink tubing 8, screw 7, contact terminal 10, nut 11, third sealing ring 12, core 13 and fourth sealing ring 14.

[0034] To achieve silicone oil impermeability at the contact terminal 10 and the core 13, the cross-section of the contact terminal 10 is a solid structure, preventing liquid from flowing through it. First, the copper wire 24 is threaded into the contact terminal's drilled hole 1003. After threading, the contact terminal 10 is riveted using a tooling. The riveting area of ​​the contact terminal 10 has two sections: one is the wire sheath riveting area 1002, and the other is the copper wire riveting area 1004. After riveting, a seamless connection is formed between the wire 18 and the contact terminal 10. Then, the riveted contact terminal 10 is inserted into the core hole 1301, with the contact terminal 10 and the core hole 1301 forming a cross-section. With an interference fit, there will be no leakage at the core hole 1301. After the contact terminal 10 is inserted into the core hole 1301, in order to avoid the possibility of short circuit in the middle part of the contact terminal 10, the middle three terminals of the contact terminal 10 are designed with heat shrink tubing 1001 and heat shrink tubing 8. The heat shrink tubing 1001 and heat shrink tubing 8 help to improve the insulation of the contact terminal 10. After the heat shrink tubing 1001 is put on the middle terminal, glue is poured into the core hole 1301. After the glue cures, the connection between the terminal and the core 13 can prevent silicone oil from penetrating. At this time, the first barrier has been formed.

[0035] To improve resistance to silicone oil penetration, the core material 13 will be a fluoropolymer with good silicone oil resistance. Next, the wire 18 is passed through the sleeve 15, and then the copper sleeve 16 is fitted onto the sleeve 15. After fitting, the copper sleeve 16 is riveted using a tool. Under the external force of the tool, the copper wires 24 inside the wire 18 are compressed together, making them completely flat without any gaps. Similarly, the outer sheath of the wire 18 and the sleeve hole of the sleeve 15 will also become completely flat without any gaps. After the copper sleeve 16 is riveted, the semi-finished product with the wire is passed through the bolt 19. The bolt 19 is preferably made of metal or plastic. The copper sleeve 16 is designed with a copper sleeve limiting surface 1601. After the copper sleeve limiting surface 1601 contacts the inner limiting surface of the bolt 19, the assembly of the semi-finished product is completed. At this time, the outer ring 1501 of the wire sleeve and the inner ring 1902 of the bolt are interference fit. Since the wire sleeve 15 is a sealing material with good elasticity and silicone oil resistance, it can prevent silicone oil from penetrating from the inner ring 1902 of the bolt 19. In order to further improve the prevention of silicone oil penetration, after the wire 18 passes through the bolt 19, glue is injected into the inner ring 1903 at the tail of the bolt. After the glue cures, the wire 18, bolt 19, copper sleeve 16 and wire sleeve 15 will be completely fused into one piece by the glue, and a second barrier has been formed.

[0036] After sealing the end of bolt 19 with adhesive, insert the second sealing ring 6 into the bolt slot 1901 and the third sealing ring 12 into the glue core slot 1302. After fitting, assemble the upper shell 4 and the lower shell 5 together. Then, pass the screw 7 through the upper shell screw hole 401 and lock it into the lower shell screw hole 501. After locking, the upper shell 4 and the lower shell 5 are assembled. After assembly, under the torque force of the screw 7, the second sealing ring 6 and the third sealing ring 12, being equally elastic and with good silicone oil resistance, can ensure good sealing at the joint between the upper and lower shells, the glue core 13, and the bolt 19. To further improve the resistance to silicone oil penetration, glue is injected into the upper shell glue injection port 402. After the glue cures, the wire 18, bolt 18, the semi-finished product with glue injected, the wire sleeve 15, the copper sleeve 16, the second sealing ring 6, and the third sealing ring 12 are fused together, forming a third barrier.

[0037] Finally, to further enhance the prevention of silicone oil penetration, the entire semi-finished product filled with glue is placed into a plastic mold to form the outer membrane 3. After the outer membrane 3 is formed, it will completely wrap the semi-finished product filled with glue. The outer membrane 3 is also made of plastic with good silicone oil resistance. In addition to improving the resistance to silicone oil penetration, the outer membrane 3 also plays a good protective role. After the outer membrane 3 is formed, it forms the fourth barrier.

[0038] In summary, by utilizing the above-mentioned technical solutions of this utility model, and through the close cooperation of the four key anti-silicone oil penetration technologies of this utility model, the product forms four safety barriers. This utility model product is ultimately installed in various electrical, electronic, and power equipment with a box structure and silicone oil filling the box. Because it has the ability to prevent silicone oil from penetrating into the product's interior, it can effectively protect various equipment, thereby greatly improving the equipment's service life and safety.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wire harness connector resistant to silicone oil penetration, characterized in that, The device includes an electrical wire (18) and a contact terminal (10). The electrical wire (18) includes several copper wires (24). One end of each copper wire (24) is inserted into a corresponding contact terminal hole (1003) of the contact terminal (10). The other end of each copper wire (24) is connected to a connector terminal (22) and a connector core (23). The outer side of the contact terminal (10) is provided with a wire sheath riveting point (1002) and a copper wire riveting point (1002) for riveting. 1004), the contact terminal (10) is covered with a rubber core (13), the contact terminal (10) and the rubber core hole (1301) of the rubber core (13) are press-fitted, the three middle terminals of the contact terminal (10) are covered with heat shrink tubing (1001) and heat shrink tubing (8) to prevent short circuit, the rubber core hole (1301) is filled with sealant to prevent silicone oil from penetrating, and a fourth sealing ring (14) is covered on the rubber core (13).

2. The wire harness connector for preventing silicone oil penetration according to claim 1, characterized in that, The wire (18) is riveted and fitted with a wire sleeve (15) and a copper sleeve (16) from the inside out. The copper sleeve (16) is provided with a copper sleeve limiting surface (1601). A bolt (19) is fitted on the outside of the copper sleeve (16). A tail sealant (17) is provided between the copper sleeve (16) and the bolt (19). The bolt (19) is provided with a bolt internal limiting surface corresponding to the copper sleeve limiting surface (1601). The tail of the bolt (19) is provided with a bolt tail inner ring (1903) for filling with sealant. The end of the bolt (19) is provided with a corresponding nut (21). The wire sleeve (15), the wire (18), the copper sleeve (16) and the bolt (19) are fused together under the action of the sealant filled in the bolt tail inner ring (1903).

3. A wire harness connector for preventing silicone oil penetration according to claim 2, characterized in that, The bolt (19) is provided with a bolt groove (1901), and a second sealing ring (6) is fitted on the bolt groove (1901); the glue core (13) is provided with a glue core groove (1302) for fitting a third sealing ring (12), and the glue core (13) is provided with an upper shell (4) and a lower shell (5) connected by screws (7) on the outside. The side of the upper shell (4) is provided with an upper shell glue injection port (402) for glue filling.

4. A wire harness connector for preventing silicone oil penetration according to claim 3, characterized in that, The upper shell (4) and lower shell (5) connected by screws (7) have an outer film (3) formed by injection molding.

5. A wire harness connector for preventing silicone oil penetration according to claim 1, characterized in that, The contact terminal (10) has a solid cross-section structure that blocks the flow of silicone oil.

6. A wire harness connector for preventing silicone oil penetration according to claim 2, characterized in that, The outer ring (1501) of the sleeve (15) is interference-fitted with the inner ring (1902) of the bolt (19); a first sealing ring (20) is provided between the bolt (19) and the corresponding nut (21).

7. A wire harness connector for preventing silicone oil penetration according to claim 2, characterized in that, The copper wires (24) inside the wire (18) are squeezed, flattened and tightly set together under the riveting action of the wire sleeve (15) and the copper sleeve (16); the outer sheath of the wire (18) and the wire sleeve hole of the wire sleeve (15) are squeezed, flattened and tightly set together under the riveting action.

8. A wire harness connector for preventing silicone oil penetration according to claim 4, characterized in that, The outer membrane (3) is made of plastic with good resistance to silicone oil; the core (13) is made of fluoroplastic with good resistance to silicone oil; the sleeve (15) is made of elastic sealing material with good resistance to silicone oil; and the bolt (19) is made of metal or plastic material.

Images