High-sealing automobile solenoid valve wire harness

Abstract

The utility model belongs to the technical field of connecting wire harnesses, and particularly relates to a high-sealing automobile solenoid valve wire harness, which comprises a plug and a plug-in mounting part, a contact copper needle is fixedly arranged in the plug, the plug-in mounting part comprises a first component, a second component and a third component which are fixed through a meshing structure, a jack for inserting the copper needle is arranged in the second component, and the plug-in mounting part is arranged in the plug. An installation groove is formed in the copper needle, an elastic sealing ring abutting against the inner wall of the inserting hole is sleeved with the installation groove, a groove is formed in one side of the circumferential face of the elastic sealing ring, a sealing ring inclined in the direction opposite to the flowing-in direction of fluid is fixedly arranged in the groove, the circumferential side of the sealing ring abuts against the inner wall of the inserting hole, and a conical groove is formed in the inner wall of the inserting hole. According to the sealing structure, multiple sealing structures cooperate to prevent impurities, so that safety and stability are ensured, injection molding and meshing are integrated in the structure, external force is resisted, durability is improved, and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of wiring harness technology, specifically a high-sealing automotive solenoid valve wiring harness. Background Technology

[0002] The automotive solenoid valve wiring harness mainly connects the automotive solenoid valve to the control system, enabling accurate transmission of electrical signals to control the opening and closing of the solenoid valve, regulate the flow and pressure of fluids inside the vehicle, and transmit electrical signals and power. It is crucial to the automotive electronic control system.

[0003] Existing automotive solenoid valve wiring harnesses mainly consist of the following components: wires, connectors, terminals, and fasteners. The working principle is that the electrical signals sent by the automotive control system are transmitted to the solenoid valve through the solenoid valve wiring harness to achieve the purpose of controlling the solenoid valve and thus realizing precise control.

[0004] Current automotive solenoid valve wiring harnesses have the following drawbacks: their waterproof performance is inadequate. During daily use, such as rain, car washes, or occasional water immersion, water can easily penetrate the wiring harness. Due to the lack of an effective waterproof barrier, once water enters, it can cause short circuits between the wires. Short circuits not only prevent the solenoid valve from working properly but may also trigger a chain reaction of failures in the automotive electrical system, seriously affecting the safety and reliability of the vehicle and potentially causing dangerous situations such as loss of vehicle control. Therefore, a highly sealed automotive solenoid valve wiring harness is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing automotive solenoid valve wiring harnesses and solve the problem of poor waterproofing performance leading to short circuits between wires, which seriously affects the safety and reliability of the vehicle and may even cause dangerous situations such as loss of vehicle control, a highly sealed automotive solenoid valve wiring harness is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A high-sealing automotive solenoid valve wiring harness of this utility model includes a plug and a insertion component. A contact copper pin is fixedly disposed inside the plug. The insertion component includes a first component, a second component, and a third component, which are fixed by an interlocking structure. The second component has an insertion hole for the insertion copper pin. The two ends of the copper pin are electrically connected to a first wire and a second wire, respectively. The second wire is electrically connected to the contact copper pin. An installation groove is provided on the copper pin. An elastic sealing ring that abuts against the inner wall of the insertion hole is fitted inside the installation groove. A groove is provided on one side of the circumferential surface of the elastic sealing ring. A sealing ring that is inclined opposite to the direction of fluid inflow is fixedly disposed in the groove. The periphery of the sealing ring abuts against the inner wall of the insertion hole.

[0007] Preferably, the inner wall of the insertion hole is provided with a tapered bevel, and the copper needle is provided with a tapered chamfer that corresponds to and abuts against the tapered bevel.

[0008] Preferably, the copper needle has an inclined groove on its periphery.

[0009] Preferably, the first component is provided with an insertion part, the second component is provided with an insertion groove that mates with the insertion part, the first component is provided with a first engagement groove, and the second component is fixedly provided with a first engagement part that mates with the first engagement groove.

[0010] Preferably, the second component has a second occlusal groove, and the third component has a second occlusal part that mates with the second occlusal groove.

[0011] Preferably, the third component has a third engagement groove, and the second component has a third engagement part that mates with the third engagement groove.

[0012] Preferably, the second component is provided with an assembly part, and the assembly part is equipped with a fixing plate for fixing the insert component. The fixing plate has an assembly hole, the shape of which matches the third engagement part. The third component is provided with an assembly groove for clamping the fixing plate.

[0013] Preferably, the second component has an annular groove on its periphery, and a sealing ring is fitted inside the annular groove.

[0014] Preferably, the second conductor is surrounded by a corrugated tube.

[0015] The beneficial effects of this utility model are:

[0016] 1. In terms of sealing performance, this utility model achieves excellent sealing and connection enhancement effects through the ingenious interaction of the elastic sealing ring and its unique sealing ring design, combined with the conical bevel of the inner wall of the socket, the conical chamfer on the copper needle, and the inclined groove around the copper needle during the injection molding process. At the sealing level, the elastic sealing ring, as the first line of defense, uses its own elasticity to tightly fit the inner wall of the socket, while the sealing ring, with its inclined structure opposite to the direction of fluid inflow, can not only effectively prevent fluid penetration when facing fluid pressure, but also convert the pressure into a force that makes the sealing ring fit more tightly with the inner wall of the socket, greatly improving the reliability of the seal. The combination of the conical bevel and the conical chamfer, and the inclined groove, during the injection molding process, utilize the flow characteristics of the injection solution to make the connection between the copper needle and the socket more tight, effectively filling any possible small gaps, forming a solid sealing defense line, comprehensively preventing moisture, dust and other impurities from entering the wiring harness, avoiding solenoid valve failure caused by short circuits and chain reactions in the automotive electrical system, and effectively ensuring the safety and stability of vehicle operation.

[0017] 2. In terms of structural stability, the first, second, and third components are connected by injection molding to form an integrated structure. The interlocking structure between the components, combined with the filling of the injection molding material, makes the connection points stable and reliable. This effectively resists external impacts such as vibration and bumps during vehicle operation, preventing components from loosening or separating, ensuring the integrity of the wiring harness structure, further guaranteeing the stability and continuity of signal transmission, reducing problems such as poor contact caused by structural changes, improving the durability and service life of the wiring harness, reducing the frequency of repair or replacement due to wiring harness damage, saving vehicle maintenance costs and time, and improving the efficiency and economy of vehicle use. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a three-dimensional structural view of the entire utility model;

[0022] Figure 4 It is an exploded perspective view of the insert component;

[0023] Figure 5 It is an exploded three-dimensional sectional view of the insert component;

[0024] Legend:

[0025] 1. Plug; 101. Contact pin; 2. Insertion component; 201. First assembly; 2011. Insertion part; 2012. First engagement groove; 202. Second assembly; 2021. Insertion groove; 2022. First engagement part; 2023. Second engagement groove; 2024. Third engagement part; 2025. Assembly part; 2026. Ring groove; 2027. Sealing ring; 203. Third assembly; 20 31. Second engagement part; 2032. Third engagement groove; 2033. Assembly groove; 204. Fixing plate; 2041. Assembly hole; 3. Insertion hole; 301. Tapered bevel; 4. Copper pin; 401. Mounting groove; 402. Elastic sealing ring; 4021. Groove; 4022. Sealing ring; 403. Tapered chamfer; 404. Inclined groove; 5. First guide wire; 6. Second guide wire; 601. Corrugated pipe. Detailed Implementation

[0026] 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 without creative effort are within the protection scope of the present utility model.

[0027] Specific implementation examples are given below.

[0028] Please see Figure 1-Figure 5 This utility model discloses a high-sealing automotive solenoid valve wiring harness, comprising a plug 1 and a insertion component 2. The plug 1 has a contact copper pin 101 fixedly disposed therein. The insertion component 2 includes a first component 201, a second component 202, and a third component 203, which are fixed together by an interlocking structure. The second component 202 has an insertion hole 3 for the insertion copper pin 4. The two ends of the copper pin 4 are electrically connected to a first wire 5 and a second wire 6, respectively. The second wire 6 is electrically connected to the contact copper pin 101. The copper pin 4 has a mounting groove 401, and an elastic sealing ring 402 that abuts against the inner wall of the insertion hole 3 is fitted inside the mounting groove 401. A groove 4021 is formed on one side of the circumferential surface of the elastic sealing ring 402. A sealing ring 4022 inclined opposite to the fluid inflow direction is fixedly disposed within the groove 4021. The periphery of the sealing ring 4022 is adjacent to the insertion hole. 3. Inner wall contact: During operation, when the wiring harness is in the working environment, various fluid media may be present. If the fluid wants to enter the gap between the socket 3 and the copper needle 4, it will first contact the sealing ring 4022. Since the sealing ring 4022 is inclined in the opposite direction to the fluid flow, the pressure generated by the fluid on the sealing ring 4022 will make it fit more tightly against the inner wall of the socket 3. At the same time, the elastic sealing ring 402 also fills the tiny gap between the socket 3 and the copper needle 4 due to its own elasticity, thereby preventing the fluid from entering and further ensuring the sealing of the wiring harness. By combining the elastic sealing ring 402 with the specially structured sealing ring 4022, fluid is effectively prevented from entering the gap between the socket 3 and the copper needle 4, improving the sealing performance of the wiring harness in harsh environments, reducing the risk of short circuits and other failures caused by moisture, dust and other factors, extending the service life of the wiring harness, and ensuring the stable operation of the automotive solenoid valve system.

[0029] Furthermore, the inner wall of the insertion hole 3 is provided with a conical bevel 301, and the copper needle 4 is provided with a conical chamfer 403 that corresponds to and abuts against the conical bevel 301. An inclined groove 404 is provided on the periphery of the copper needle 4. During operation, when the copper needle 4 is inserted into the insertion hole 3, the conical chamfer 403 of the copper needle 4 and the conical bevel 301 of the insertion hole 3 cooperate to guide each other, making it easy for the copper needle 4 to be accurately inserted into the insertion hole 3. When the first component 201 is fixedly connected to the second component 202 through injection molding, the injection molding solution enters the gap between the insertion hole 3 and the copper needle 4 and flows into the inclined groove 404. Since the inclined surface of the inclined groove 404 is opposite to the direction of the injection molding solution flow, when the injection molding solution is in the inclined groove 404, it will exert pressure on the inclined groove 404 opposite to it. On the inclined surface within 04, the conical chamfer 403 on the copper pin 4 is pushed to abut more tightly against the conical bevel 301 of the socket 3, further enhancing the sealing effect. After injection molding, the cured injection material also helps to fix the position of the copper pin 4, improving the overall structural stability. The setting of the inclined groove 404 allows the first component 201 to cleverly utilize the flow characteristics of the injection solution during the injection molding process to enhance the sealing effect and assist in fixing the copper pin 4, which helps to maintain the high sealing performance of the wiring harness, ensure the stability of the signal transmission of the automotive solenoid valve system, and at the same time improve the reliability and stability of the entire wiring harness assembly structure, reduce the possibility of failure caused by structural loosening or sealing failure, and improve the adaptability and durability of the product in the complex operating environment of the automobile.

[0030] Furthermore, the first component 201 is provided with an insertion portion 2011, the second component 202 is provided with an insertion groove 2021 that mates with the insertion portion 2011, the first component 201 is provided with a first engagement groove 2012, the second component 202 is fixedly provided with a first engagement portion 2022 that mates with the first engagement groove 2012, the second component 202 is provided with a second engagement groove 2023, and the third component 203 is provided with a second engagement portion 2023 that mates with the second engagement groove 2023. 031, the third component 203 has a third engagement groove 2032, the second component 202 has a third engagement part 2024 that mates with the third engagement groove 2032, the second component 202 has an assembly part 2025, the assembly part 2025 is equipped with a fixing plate 204 for fixing the insert component 2, the fixing plate 204 has an assembly hole 2041, the shape of the assembly hole 2041 mates with the third engagement part 2024, and the third component 203 is provided with a locking mechanism. The mounting slot 2033 of the fixing plate 204 is used for assembly. During operation, the first component 201 and the third component 203 are connected to the second component 202 through an injection mold to form the insert component 2. The insertion part 2011 of the first component 201 is connected to the insertion slot 2021 of the second component 202. Then, the first engagement part 2022 and the first engagement groove 2012 engage with each other. The second component 202 and the third component 203 are also connected through a similar engagement structure. The fixing plate 204 is fitted onto the second component 202 through the mounting hole 2041. On the three-interlocking part 2024, after the third component 203 is injection molded, the fixing plate 204 will be inserted into the assembly groove 2033 of the third component 203, thereby firmly fixing the components of the insert part 2. This interlocking structural design makes the components of the insert part 2 tightly and stably connected, improving the overall structural strength of the insert part 2, preventing the components from loosening or separating due to vibration, bumps and other factors during vehicle operation, ensuring the normal operation of the wiring harness, and also facilitating the assembly and disassembly of the wiring harness, thus improving production and maintenance efficiency.

[0031] Furthermore, the second component 202 has an annular groove 2026 on its periphery, and a sealing ring 2027 is fitted inside the annular groove 2026. During operation, when the solenoid valve wiring harness is assembled on the engine, the insert component 2 is inserted into the fixing port on the engine. Due to the compression of the inner wall of the fixing port, the sealing ring 2027 undergoes elastic deformation and fits tightly against the inner surface of the fixing port and the groove wall of the annular groove 2026. This tight fit allows the sealing ring 2027 to fill the tiny gap between the insert component 2 and the fixing port, forming a continuous and pore-free sealing interface, thereby effectively preventing external fluids, dust and other impurities from entering.

[0032] Furthermore, the second conductor 6 is surrounded by a corrugated tube 601. During operation, the corrugated tube 601 has good flexibility and extensibility. When the wiring harness is subjected to stretching, bending, or torsion forces during vehicle operation, the corrugated tube 601 can deform accordingly, protecting the internal second conductor 6 from external damage. At the same time, it can also shield external electromagnetic interference to a certain extent, effectively protecting the second conductor 6 and preventing it from being damaged by mechanical external forces, thus preventing short circuits and other problems. This improves the service life of the second conductor 6 and reduces the impact of external electromagnetic interference on signal transmission, ensuring the accuracy and stability of signal transmission in the automotive solenoid valve system.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A high-sealing automotive solenoid valve wiring harness, comprising a plug (1) and a mounting component (2), wherein a contact copper pin (101) is fixedly disposed inside the plug (1), characterized in that: The insertion component (2) includes a first component (201), a second component (202), and a third component (203), which are fixed by an interlocking structure. The second component (202) has an insertion hole (3) for a copper needle (4). The two ends of the copper needle (4) are electrically connected to a first wire (5) and a second wire (6), respectively. The second wire (6) is electrically connected to a contact copper needle (101). The copper needle (4) has an installation groove (401). An elastic sealing ring (402) that abuts against the inner wall of the insertion hole (3) is fitted in the installation groove (401). A groove (4021) is provided on one side of the circumferential surface of the elastic sealing ring (402). A sealing ring (4022) that is inclined in the opposite direction to the fluid flow direction is fixedly installed in the groove (4021). The periphery of the sealing ring (4022) abuts against the inner wall of the insertion hole (3).

2. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The inner wall of the insertion hole (3) is provided with a tapered bevel (301), and the copper needle (4) is provided with a tapered chamfer (403) that corresponds to and abuts against the tapered bevel (301).

3. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: An inclined groove (404) is provided on the periphery of the copper needle (4).

4. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The first component (201) is provided with an insertion part (2011), the second component (202) is provided with an insertion groove (2021) that cooperates with the insertion part (2011), the first component (201) is provided with a first engagement groove (2012), and the second component (202) is fixedly provided with a first engagement part (2022) that cooperates with the first engagement groove (2012).

5. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The second component (202) has a second engagement groove (2023), and the third component (203) has a second engagement part (2031) that cooperates with the second engagement groove (2023).

6. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The third component (203) has a third engagement groove (2032), and the second component (202) has a third engagement part (2024) that cooperates with the third engagement groove (2032).

7. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The second component (202) is provided with an assembly part (2025), and a fixing plate (204) for fixing the insert component (2) is assembled on the assembly part (2025). The fixing plate (204) is provided with an assembly hole (2041), and the shape of the assembly hole (2041) matches the third engagement part (2024). The third component (203) is provided with an assembly groove (2033) for clamping the fixing plate (204).

8. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The second component (202) has an annular groove (2026) on its periphery, and a sealing ring (2027) is fitted inside the annular groove (2026).

9. The high-sealing automotive solenoid valve wiring harness according to claim 1, characterized in that: The second conductor (6) is surrounded by a corrugated tube (601).

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