Silicone oil permeation prevention wire harness connector and manufacturing method thereof

Abstract

The wire harness connector comprises an electric wire and a contact terminal, the electric wire comprises a plurality of electric wire copper wires, one ends of the electric 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 electric 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; four safety barriers of the product are provided; 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] The present invention relates to the technical field of wiring harness connectors, and in particular to a wiring harness connector that is resistant to silicone oil penetration and a manufacturing method thereof. Background Art

[0002] Silicone oil is a polysiloxane with chain structure of different polymerization degree. It is obtained by hydrolysis of dimethyldichlorosilane with water to obtain the initial polycondensation ring body, and the ring body is obtained by cracking and distillation to obtain the low ring body. Then, the ring body, capping agent and catalyst are put together to obtain a mixture of various polymerization degrees. Silicone oil can be obtained by removing low boiling points by vacuum distillation. Silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity and low surface tension. In addition, it has a low viscosity-temperature coefficient, high compression resistance, and some varieties also have radiation resistance. Silicone oil also has many special properties, such as anti-oxidation, high flash point, low volatility, no corrosion to metal, non-toxicity, etc. Therefore, it is widely used in devices or equipment with high heat generation. For example, the battery pack is soaked with silicone oil for good heat dissipation. After the battery pack is soaked in silicone oil, it is conducive to the cooling and heat dissipation of the battery during operation, thereby increasing the working life of the battery and ensuring the safety of the battery during operation! Although silicone oil has many advantages, it has a fatal disadvantage, which is its strong permeability. In addition, when the product is working, it also has electromagnetic adsorption, that is, it will crawl in the direction of the current, thereby further improving its permeability. This brings new challenges to the sealing design of the device. Many existing devices have silicone oil leakage after a short period of operation. If the equipment continues to operate for a long time, the silicone oil inside may be completely penetrated. After the penetration, there will be no cooling and heat dissipation effect, which may cause the battery to instantly become high temperature. Continuous operation of the battery at high temperature is very likely to cause explosion or spontaneous combustion, resulting in fatal safety accidents.

[0003] In order to completely solve the above hidden dangers, the present invention provides a new anti-silicone oil penetration process and method, through the application of which, silicone oil penetration can be prevented so that the device or equipment can be protected by silicone oil for a long time, thereby ensuring the safety of the device or equipment during operation. Summary of the invention

[0004] In view of the above technical problems in the related art, the present invention provides a wiring harness connector that is resistant to silicone oil penetration, which can overcome the above deficiencies in the prior art.

[0005] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows: In a first aspect, the present invention provides a wiring harness connector that is resistant to silicone oil penetration; The wiring harness connector for preventing silicone oil penetration includes electric wires and contact terminals, wherein the electric wires include a plurality of copper wires, one end of each of the copper wires is correspondingly inserted into a contact terminal drill hole of the contact terminal, and the other end of each of the copper wires is connected to the connector terminal and the connector rubber core, the outer side of the contact terminal is provided with a wire sheath riveting point and a wire copper wire riveting point for riveting, the outer sleeve of the contact terminal is provided with a rubber core, the contact terminal and the rubber core hole of the rubber core are interference fit, the outer three middle terminals of the contact terminal are provided with a middle terminal sleeve heat shrink tube and a heat shrink tube to avoid short circuit, the rubber core hole is filled with sealant for preventing silicone oil from penetrating, and the rubber core is sleeved with a fourth sealing ring.

[0006] Furthermore, the outside of the electric wire is riveted and sleeved with a wire sleeve and a copper sleeve in sequence from the inside to the outside, the copper sleeve is provided with a copper sleeve limiting surface, a bolt is sleeved on the outside of the copper sleeve, a tail sealant is provided between the copper sleeve and the bolt, the bolt is provided with a bolt internal limiting surface corresponding to the copper sleeve limiting surface, the tail of the bolt is provided with a bolt tail inner ring for injecting sealant, the end of the bolt is provided with a corresponding nut, and the wire sleeve, the electric wire, the copper sleeve and the bolt are fused into one under the action of the sealant injected in the bolt tail inner ring.

[0007] Furthermore, a bolt slot is provided on the bolt, and a second sealing ring is sleeved on the bolt slot; a rubber core slot for sleeved with a third sealing ring is provided on the rubber core, and an upper shell and a lower shell connected by screws are provided on the outside of the rubber core, and an upper shell glue injection port for glue injection is provided on the side of the upper shell.

[0008] Furthermore, the upper shell and the lower shell connected by screws are provided with an outer film on the outside through mold injection.

[0009] Furthermore, the cross section of the contact terminal is a solid cross section structure that blocks the penetration and flow of silicone oil.

[0010] Furthermore, the outer ring of the wire sleeve is interference fit with the inner ring of the bolt; and a first sealing ring is provided between the bolt and the corresponding nut.

[0011] Furthermore, the copper wires in the wire are mutually squeezed, flattened, and tightly arranged under the riveting action of the wire sleeve and the copper sleeve; the wire sheath of the wire and the wire sleeve hole of the wire sleeve are mutually squeezed, flattened, and tightly arranged under the riveting action.

[0012] Furthermore, the outer film is made of plastic with good resistance to silicone oil; the rubber core is made of fluorine-based plastic with good resistance to silicone oil; the wire sleeve is made of elastic sealing material with good resistance to silicone oil; and the bolt is made of metal material or plastic material.

[0013] In a second aspect, the present invention provides a method for manufacturing a wiring harness connector that is resistant to silicone oil penetration; The manufacturing method of the wiring harness connector that prevents silicone oil penetration specifically comprises the following steps: Step S1: making the first barrier to prevent silicone oil penetration; S101: Pass the copper wire of the electric wire into the drilled hole of the contact terminal; S102: riveting the wire sheath riveting area and the wire copper wire riveting area of ​​the contact terminal by a tool to form a seamless connection; S103: Cover the three middle terminals of the contact terminal with heat shrink tubes and heat shrink tubes to prevent the middle terminals from short circuit; S104: inserting the contact terminal into the rubber core hole with interference fit; S105: After the middle terminal is covered with heat shrink tubing, glue is poured into the glue core hole; Step S2: making a second barrier to prevent silicone oil penetration; S201: Pass the wire through the wire sleeve; S202: Put the copper sleeve onto the wire sleeve; S203: The copper sleeve is riveted and pressed by a tool to form a semi-finished product with an electric wire; S204: passing the semi-finished product with the electric wire through the bolt so that the limiting surface of the copper sleeve contacts the inner limiting surface of the bolt, thus completing the assembly of the semi-finished product; S205: After the wire passes through the bolt, glue is poured into the inner circle of the bolt tail. After the glue is cured, the wire, bolt, copper sleeve and wire sleeve are completely melted into one by the glue to form a second barrier; Step S3: Making a third barrier to prevent silicone oil penetration. S301: Insert the second sealing ring into the bolt groove (1901), insert the third sealing ring into the rubber core groove, and assemble the upper shell and the lower shell together; S302: Pass the screws through the screw holes of the upper shell and lock them into the screw holes of the lower shell. After locking, the upper shell and the lower shell are assembled. S303: Glue is poured from the glue injection port of the upper shell. After the glue is cured, the wire, bolt, wire sleeve, copper sleeve, second sealing ring and third sealing ring are integrated to form a third barrier; Step S4: making a fourth barrier to prevent silicone oil penetration, placing the semi-finished product filled with glue in S303 into a plastic mold for outer film molding.

[0014] The beneficial effects of the present invention are as follows: through the close cooperation of the four key anti-silicone oil penetration technical solutions of the product of the present invention, the product forms four safety barriers; the product of the present invention is finally installed in various electrical, electronic and power equipment with a box structure and silicone oil filled in the box. Since it can prevent silicone oil from penetrating into the interior of the product, it can effectively protect various equipment, thereby greatly improving the service life and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a first-perspective exploded view of a wiring harness connector that is resistant to silicone oil penetration according to an embodiment of the present invention; Figure 2 is an exploded view from a second perspective of a wiring harness connector that is resistant to silicone oil penetration according to an embodiment of the present invention; Figure 3 is a third-perspective exploded view of a wiring harness connector that is resistant to silicone oil penetration according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a specific use state of a wiring harness connector that prevents silicone oil penetration according to an embodiment of the present invention; In the figure: 1. Wire harness product; 2. Product installation box; 201. Silicone oil receiving cavity of the box; 3. Outer membrane; 4. Upper shell; 401. Screw hole of upper shell; 402. Glue injection port of upper shell; 5. Lower shell; 501. Screw hole of lower shell; 6. Second sealing ring; 7. Screw; 8. Heat shrink tube; 9. Glue sealing of semi-finished product; 10. Contact terminal; 1001. Heat shrink tube for middle terminal; 1002. Riveting place of outer skin of wire; 1003. Drilling hole of contact terminal; 1004. Riveting place of copper wire of wire; 11. Screw Cap; 12. Third sealing ring; 13. Rubber core; 1301. Rubber core hole; 1302. Rubber core slot; 14. Fourth sealing ring; 15. Wire sleeve; 1501. Wire sleeve outer ring; 16. Copper sleeve; 1601. Copper sleeve limit surface; 17. Tail sealing glue; 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 rubber core; 24. Wire copper wire. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0018] It should be understood that, in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0019] like Figure 1-4 As shown, a wiring harness connector that prevents silicone oil penetration according to an embodiment of the present invention includes an electric wire 18 and a contact terminal 10, wherein the electric wire 18 includes a plurality of copper wires 24, one end of each of the copper wires 24 is correspondingly inserted into a contact terminal drilling hole 1003 of the contact terminal 10, and the other end of each of the copper wires 24 is connected to a connector terminal 22 and a connector rubber core 23, and a wire sheath rivet 1002 and a wire copper wire rivet 1004 for riveting are provided on the outside of the contact terminal 10, a rubber core 13 is sleeved on the outside of the contact terminal 10, and the contact terminal 10 has an interference fit with a rubber core hole 1301 of the rubber core 13, and the middle three terminals of the contact terminal 10 are provided with an intermediate terminal sleeve heat shrink tube 1001 and a heat shrink tube 8 to avoid short circuit, and a sealant for preventing silicone oil from penetrating is poured into the rubber core hole 1301, and a fourth sealing ring 14 is sleeved on the rubber core 13.

[0020] According to a wiring harness connector that is resistant to silicone oil penetration described in an embodiment of the present invention, in a specific embodiment, the outside of the electric wire 18 is riveted and sleeved with a wire sleeve 15 and a copper sleeve 16 in sequence from the inside to the outside, the copper sleeve 16 is provided with a copper sleeve limiting surface 1601, a bolt 19 is sleeved 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 pouring sealant, and the end of the bolt 19 is provided with a corresponding nut 21, and the wire sleeve 15, the electric wire 18, the copper sleeve 16 and the bolt 19 are fused into one under the action of the sealant poured in the bolt tail inner ring 1903.

[0021] According to a wiring harness connector that prevents silicone oil penetration described in an embodiment of the present invention, in a specific embodiment, a bolt slot 1901 is provided on the bolt 19, and a second sealing ring 6 is sleeved on the bolt slot 1901; a rubber core slot 1302 for sleeved with a third sealing ring 12 is provided on the rubber core 13, and an upper shell 4 and a lower shell 5 are correspondingly connected by screws 7 on the outside of the rubber core 13, and an upper shell glue injection port 402 for glue injection is provided on the side of the upper shell 4.

[0022] According to a wiring harness connector resistant to silicone oil penetration described in an embodiment of the present invention, in a specific embodiment, an outer film 3 is provided on the outside of the upper shell 4 and the lower shell 5 connected by screws 7 by mold injection.

[0023] According to a wiring harness connector that prevents silicone oil penetration according to an embodiment of the present invention, in a specific embodiment, the cross section of the contact terminal 10 is a solid cross section structure that blocks the penetration and flow of silicone oil.

[0024] According to a wiring harness connector that is resistant to silicone oil penetration described in an embodiment of the present invention, in a specific embodiment, the outer ring 1501 of the wire sleeve 15 and the inner ring 1902 of the bolt 19 are interference fit; a first sealing ring 20 is provided between the bolt 19 and the corresponding nut 21.

[0025] According to a wiring harness connector that is resistant to silicone oil penetration described in an embodiment of the present invention, in a specific embodiment, the copper wires 24 in the wire 18 are mutually squeezed, flattened, and tightly arranged under the riveting action of the wire sleeve 15 and the copper sleeve 16; the wire sheath of the wire 18 and the wire sleeve hole of the wire sleeve 15 are mutually squeezed, flattened, and tightly arranged under the riveting action.

[0026] According to a wiring harness connector that is resistant to silicone oil penetration as described in an embodiment of the present invention, in a specific embodiment, the outer membrane 3 is made of plastic with good resistance to silicone oil; the rubber core 13 is made of fluorine-based plastic with good resistance to silicone oil; the wire sleeve 15 is made of an elastic sealing material with good resistance to silicone oil; and the bolt 19 is made of metal material or plastic material.

[0027] A method for manufacturing a wiring harness connector that is resistant to silicone oil penetration according to an embodiment of the present invention specifically comprises the following steps: Step S1: making the first barrier to prevent silicone oil penetration; S101: Pass the copper wire 24 into the contact terminal drilling hole 1003; S102: Riveting the wire sheath riveting area 1002 and the wire copper wire riveting area 1004 of the contact terminal 10 by a tool to form a seamless connection; S103: The three middle terminals of the contact terminal 10 are covered with heat shrink tubes 1001 and heat shrink tubes 8 to prevent the middle terminals from short circuit; S104: inserting the contact terminal 10 into the rubber core hole 1301 with interference fit; S105: After the heat shrink tube 1001 is put on the middle terminal, glue is poured into the glue core hole 1301; Step S2: making a second barrier to prevent silicone oil penetration; S201: Pass the wire 18 through the wire sleeve 15; S202: insert the copper sleeve 16 onto the wire sleeve 15; S203: Riveting the copper sleeve 16 by a tool to form a semi-finished product with an electric wire 18; S204: passing the semi-finished product with the electric wire 18 through the bolt 19 so that the copper sleeve limiting surface 1601 contacts the inner limiting surface of the bolt 19, thus completing the assembly of the semi-finished product; S205: After the wire 18 passes through the bolt 19, glue is poured into the inner ring 1903 of the bolt tail. After the glue is cured, the wire 18, the bolt 19, the copper sleeve 16 and the wire sleeve 15 are completely melted into one body by the glue to form a second barrier; Step S3: Making a third barrier to prevent silicone oil penetration. S301: insert the second sealing ring 6 into the bolt slot 1901, insert the third sealing ring 12 into the rubber core slot 1302, and assemble the upper shell 4 and the lower shell 5 together; S302: Pass the screw 7 through the screw hole 401 of the upper shell and lock it into the screw hole 501 of the lower shell. After locking, the upper shell 4 and the lower shell 5 are assembled; S303: Glue is poured from the glue injection port 402 of the upper shell. After the glue is cured, the wire 18, the bolt 19, the wire sleeve 15, the copper sleeve 16, the second sealing ring 6 and the third sealing ring 12 are integrated to form a third barrier; Step S4: making a fourth barrier to prevent silicone oil penetration, placing the semi-finished product filled with glue in S303 into a plastic mold to form the outer film 3.

[0028] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0029] In specific use, a wiring harness connector that is resistant to silicone oil penetration according to the present invention includes a connector (including a connector rubber core 23 and a connector terminal 22), a nut 21, a first sealing ring 20, a bolt 19, an electric wire 18, a tail sealing ring 17, a copper sleeve 16, a wire sleeve 15, an outer membrane 3, a lower shell 5, a second sealing ring 6, an upper shell 4, a semi-finished product sealing ring 9, a heat shrink tube 8, a screw 7, a contact terminal 10, a nut 11, a third sealing ring 12, a rubber core 13 and a fourth sealing ring 14.

[0030] In order to achieve the anti-silicone oil penetration at the contact terminal 10 and the rubber core 13, the cross section of the contact terminal 10 is a solid structure, and liquid cannot flow through the cross section of the contact terminal 10. First, the copper wire 24 of the wire is inserted into the contact terminal drilling hole 1003. After the insertion, the contact terminal 10 is riveted by the tooling. The riveting area of ​​the contact terminal 10 has two sections, one section is the wire outer skin riveting area 1002, and the other section is the wire copper wire riveting area 1004. After the riveting is completed, a seamless connection will be formed between the wire 18 and the contact terminal 10. Then the riveted contact terminal 10 is inserted into the rubber core hole 1301. The contact terminal 10 and the rubber core hole 1301 are in a state of being passed through. Interference fit. In the case of interference fit, there will be no leakage at the rubber core hole 1301. After the contact terminal 10 is inserted into the rubber core hole 1301, in order to avoid a short circuit in the middle part of the contact terminal 10, the middle three terminals of the contact terminal 10 are designed with middle terminal sleeve heat shrink tube 1001 and heat shrink tube 8. Under the action of the middle terminal sleeve heat shrink tube 1001 and heat shrink tube 8, it is beneficial to improve the insulation of the contact terminal 10. After the middle terminal sleeve heat shrink tube 1001 is put on, glue is poured into the rubber core hole 1301. After the glue is cured, the connection between the terminal and the rubber core 13 can prevent silicone oil from penetrating, and the first barrier has been formed at this time.

[0031] In order to improve the resistance to silicone oil penetration, the material of the rubber core 13 will be made of fluorine-based plastics with good resistance to silicone oil. Then, the wire 18 is passed through the wire sleeve 15, and then the copper sleeve 16 is inserted onto the wire sleeve 15. After the sleeve is put on, the copper sleeve 16 is riveted by the tooling. After riveting, under the action of the external force of the tooling, the copper wires 24 in the wire 18 are squeezed against each other, so that the copper wires are completely flat against each other without any gaps. Similarly, the outer skin of the wire 18 and the wire sleeve hole of the wire sleeve 15 will also become completely flat against each other without any gaps. After the copper sleeve 16 is riveted, the semi-finished product with wire is passed through the bolt 19. The material of the bolt 19 is preferably metal or plastic. The copper sleeve 16 is designed with a copper sleeve limit surface 1601. After the copper sleeve limit surface 1601 contacts the internal limit 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 prevent silicone oil penetration, after the wire 18 passes through the bolt 19, glue is poured into the inner ring 1903 at the tail of the bolt. After the glue solidifies, the wire 18, the bolt 19, the copper sleeve 16 and the wire sleeve 15 will be completely melted into one by the glue, and the second barrier has been formed at this time.

[0032] After the tail of the bolt 19 is sealed with glue, the second sealing ring 6 is inserted into the bolt card slot 1901, and the third sealing ring 12 is inserted into the rubber core card slot 1302. After the upper shell 4 and the lower shell 5 are assembled together, the screw 7 is passed through the upper shell screw hole 401 and locked into the lower shell screw hole 501. After locking, the upper shell 4 and the lower shell 5 are assembled. After the assembly is completed, the second sealing ring 6 and the third sealing ring 12 are under the action of the torque force of the screw 7. Since they are also sealing materials with good elasticity and silicone oil resistance, they can ensure good sealing at the junction of the upper and lower shells with the rubber core 13 and the bolt 19. In order to further improve the resistance to silicone oil penetration, glue is poured from the glue injection port 402 of the upper shell. After the glue is cured, the wire 18, the bolt 18, the semi-finished product that has been filled with glue, the wire sleeve 15, the copper sleeve 16, the second sealing ring 6 and the third sealing ring 12 are fused into one. At this time, the third barrier has been formed.

[0033] Finally, in order to further prevent silicone oil from penetrating, the entire semi-finished product filled with glue is placed in a plastic mold for forming an outer film 3. After the outer film 3 is formed, the semi-finished product filled with glue will be completely wrapped. The outer film 3 is also made of plastic with good resistance to silicone oil. In addition to improving the resistance to silicone oil penetration, the outer film 3 also plays a good protective role. After the outer film 3 is formed, the fourth barrier has been formed.

[0034] To sum up, with the help of the above-mentioned technical scheme of the present invention, through the close cooperation of the four key anti-silicone oil penetration technical schemes of the product of the present invention, the product forms four safety barriers; the product of the present invention is finally installed in various electrical, electronic and power equipment with a box structure and silicone oil filled in the box. Since it can prevent silicone oil from penetrating into the interior of the product, it can effectively protect various equipment, so that the service life and safety of the equipment are greatly improved.

[0035] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wiring harness connector that is resistant to silicone oil penetration, characterized in that: The invention comprises an electric wire (18) and a contact terminal (10), wherein the electric wire (18) comprises a plurality of electric wire copper wires (24), one end of each of the electric wire copper wires (24) being inserted into a contact terminal drilling hole (1003) of the contact terminal (10) in a one-to-one correspondence, and the other end of each of the electric wire copper wires (24) being connected to a connector terminal (22) and a connector rubber core (23), and the outer side of the contact terminal (10) being provided with an electric wire outer skin riveting portion (1002) and an electric wire copper wire riveting portion ( 1004), the outer sleeve of the contact terminal (10) is provided with a rubber core (13), the contact terminal (10) and the rubber core hole (1301) of the rubber core (13) are interference fit, the outer sides of the three middle terminals of the contact terminal (10) are provided with a middle terminal sleeve heat shrink tube (1001) and a heat shrink tube (8) to prevent short circuit, the rubber core hole (1301) is filled with sealant for preventing silicone oil from penetrating, and the rubber core (13) is provided with a fourth sealing ring (14).

2. A wiring harness connector resistant to silicone oil penetration according to claim 1, characterized in that: The outside of the electric wire (18) is riveted and sheathed with a wire sleeve (15) and a copper sleeve (16) in sequence from the inside to the outside, the copper sleeve (16) is provided with a copper sleeve limiting surface (1601), a bolt (19) is sheathed 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 injecting sealant, and the end of the bolt (19) is provided with a corresponding nut (21), and the wire sleeve (15), the electric wire (18), the copper sleeve (16) and the bolt (19) are fused into one under the action of the sealant injected in the bolt tail inner ring (1903).

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

4. A wiring harness connector resistant to silicone oil penetration according to claim 3, characterized in that: The upper shell (4) and the lower shell (5) connected by screws (7) are externally provided with an outer membrane (3) by mold injection.

5. The wiring harness connector resistant to silicone oil penetration according to claim 1, characterized in that: The cross section of the contact terminal (10) is a solid cross section structure that blocks the penetration and flow of silicone oil.

6. The wiring harness connector resistant to silicone oil penetration according to claim 2, characterized in that: The outer ring (1501) of the wire sleeve (15) and the inner ring (1902) of the bolt (19) are interference fit; and a first sealing ring (20) is provided between the bolt (19) and the corresponding nut (21).

7. The wiring harness connector resistant to silicone oil penetration according to claim 2, characterized in that: The plurality of copper wires (24) in the electric wire (18) are mutually squeezed, flattened, and tightly arranged under the riveting action of the wire sleeve (15) and the copper sleeve (16); the wire sheath of the electric wire (18) and the wire sleeve hole of the wire sleeve (15) are mutually squeezed, flattened, and tightly arranged under the riveting action.

8. The wiring harness connector resistant to 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 rubber core (13) is made of fluorine-based plastic with good resistance to silicone oil; the wire sleeve (15) is made of elastic sealing material with good resistance to silicone oil; and the bolt (19) is made of metal material or plastic material.

9. A method for manufacturing a wiring harness connector resistant to silicone oil penetration as claimed in claim 8, characterized in that: The steps include: Step S1: making the first barrier to prevent silicone oil penetration; S101: Passing the copper wire (24) of the electric wire into the drilled hole (1003) of the contact terminal; S102: using a tool to rivet the wire sheath riveting area (1002) and the wire copper wire riveting area (1004) of the contact terminal (10) to form a seamless connection; S103: Sheathing the three middle terminals of the contact terminal (10) to prevent the middle terminal from short circuit with a heat shrink tube (1001) and a heat shrink tube (8); S104: inserting the contact terminal (10) into the rubber core hole (1301) with an interference fit; S105: After the middle terminal is covered with a heat shrink tube (1001), glue is poured into the glue core hole (1301); Step S2: making a second barrier to prevent silicone oil penetration; S201: Pass the electric wire (18) through the wire sleeve (15); S202: Insert the copper sleeve (16) onto the wire sleeve (15); S203: riveting the copper sleeve (16) by a tool to form a semi-finished product with an electric wire (18); S204: passing the semi-finished product with the electric wire (18) through the bolt (19) so that the copper sleeve limiting surface (1601) contacts the inner limiting surface of the bolt (19), thereby completing the assembly of the semi-finished product; S205: After the wire (18) passes through the bolt (19), glue is poured into the inner ring (1903) at the tail of the bolt. After the glue is cured, the wire (18), the bolt (19), the copper sleeve (16) and the wire sleeve (15) are completely fused together by the glue to form a second barrier. Step S3: Making a third barrier to prevent silicone oil penetration. S301: insert the second sealing ring (6) into the bolt groove (1901), insert the third sealing ring (12) into the rubber core groove (1302), and assemble the upper shell (4) and the lower shell (5) together; S302: Pass the screw (7) through the screw hole (401) of the upper shell and lock it into the screw hole (501) of the lower shell. After locking, the upper shell (4) and the lower shell (5) are assembled. S303: pouring glue from the glue injection port (402) of the upper shell, and after the glue solidifies, fusing the wire (18), the bolt (19), the wire sleeve (15), the copper sleeve (16), the second sealing ring (6) and the third sealing ring (12) into one body to form a third barrier; Step S4: Making the fourth barrier to prevent silicone oil penetration, placing the semi-finished product filled with glue in S303 into a plastic mold to form an outer film (3).

Images