Engine fuel injector wiring harness

Abstract

The utility model discloses an engine oil sprayer wire harness, including wire harness body, plug, socket, anti -unscrewing structure, elastic column, spring, limit block, limit recess, sealing assembly and sealing groove, one end of wire harness body has the plug of integral forming, the outside installation of plug has the socket, the both sides of plug are equipped with anti -unscrewing structure, the anti -unscrewing structure includes elastic column, spring and limit block, the elastic column installs in plug side wall, the spring is covered and is equipped in elastic column, the limit block installs in elastic column end, one end of socket is provided with the opening of the plug adaptation, the inner wall of socket is provided with the limit recess of the limit block adaptation and corresponding, the outside of plug is covered with two sealing assemblies, the inner wall of socket is provided with two sealing grooves of the sealing assembly adaptation and corresponding, the utility model can be closely connected through the anti -unscrewing structure of plug and socket, prevent the situation of short circuit or contact badly.

Description

Technical Field

[0001] This utility model relates to the technical field of engine injectors, and in particular to the technical field of engine injector wiring harnesses. Background Technology

[0002] The engine injector wiring harness is an important component that connects the injectors and the engine. Its main function is to transmit electrical signals and control commands to ensure the normal operation of the injectors.

[0003] However, existing engine injector wiring harnesses do not have good anti-friction properties, cannot withstand high temperatures, are prone to aging, and cannot be arranged in an orderly manner, thus failing to meet people's usage needs.

[0004] To address the problems mentioned above, for example, application number CN201820857700.6 discloses an engine injector wiring harness, including a protective shell, a connecting sleeve, and an oil-resistant material. A locking plate is installed on the left side of the protective shell, and a rubber pad is provided inside the locking plate. A branch sleeve is fixed above the connecting sleeve, and the connecting sleeve is located on the right side of the locking plate. The protective shell, rubber pad, and locking plate are fixed together by threads. The inner surface of the locking plate is in close contact with the outer surface of the rubber pad, and the inner surface of the rubber pad is in close contact with the outer surface of the protective shell. The locking plate fixes the protective shell through the rubber pad, ensuring that the wiring harness will not be scattered, making it easy to find during wiring harness inspection or maintenance. The insulating rubber can ensure that the wiring harness will not leak, short-circuit, or disconnect during operation, thereby extending the service life of the protective shell and ensuring the normal power supply of the engine injector.

[0005] Although the aforementioned patent can ensure that the wiring harness will not leak, short-circuit or lose power during operation, the structure has poor oil resistance and waterproof performance. In addition, the engine will vibrate during operation, resulting in the engine injector wiring harness not having the effect of shock absorption and energy absorption.

[0006] To address the problems mentioned above, for example, application number CN202020875534.X discloses an engine injector wiring harness, including a wire assembly composed of several wires. One end of each wire is connected to a connector, and the end of the wire away from the connector is connected to a terminal. A splitter is provided on one side inside the terminal, and several wires pass through the splitter. The terminal and the connector are connected by a corrugated tube. This injector wiring harness of the present invention has good oil and water resistance and heat dissipation effects, thereby extending the service life of the injector wiring harness and improving the safety of use. By combining desiccant, heat-conducting material, and waterproof material, the wires can be kept dry for a long time. At the same time, the heat-conducting material can effectively conduct the heat generated by the wires. Since the waterproof material can prevent water intrusion, it can avoid short circuits in the wiring harness caused by moisture, thus improving the safety of the wiring harness.

[0007] However, the aforementioned patents still have the following drawbacks:

[0008] While the aforementioned patents provide the wiring harness with excellent oil and water resistance and heat dissipation, engine vibrations may cause the plugs to loosen, allowing oil and moisture to enter and cause short circuits or poor contact. Summary of the Invention

[0009] The purpose of this invention is to solve the problems in the prior art by proposing an engine injector wiring harness that can achieve a tight connection between the plug and the socket through an anti-loosening structure, thus preventing short circuits or poor contact.

[0010] To achieve the above objectives, this utility model proposes an engine injector wiring harness, including a wiring harness body, a plug, a socket, an anti-loosening structure, an elastic post, a spring, a limiting block, a limiting groove, a sealing component, and a sealing groove. One end of the wiring harness body is integrally formed with a plug, and a socket is installed on the outside of the plug. Anti-loosening structures are provided on both sides of the plug. Each anti-loosening structure includes an elastic post, a spring, and a limiting block. The elastic post is installed on the side wall of the plug, the spring is sleeved on the elastic post, and the limiting block is installed at the end of the elastic post. One end of the socket has an opening adapted to the plug, and the inner wall of the socket has a limiting groove adapted to and corresponding to the limiting block. Two sealing components are sleeved on the outside of the plug, and two sealing grooves adapted to and corresponding to the sealing components are formed on the inner wall of the socket.

[0011] Preferably, the sealing component is a high-temperature resistant sealing ring, which forms an interference fit with the sealing groove on the inner wall of the socket.

[0012] Preferably, the outer surface of the wire harness body is provided with an insulating layer.

[0013] Preferably, the outer surface of the insulating layer is provided with a protective layer, which is a high-temperature resistant protective sleeve.

[0014] Preferably, the outer surface of the high-temperature resistant protective sleeve is embedded with multiple heat dissipation fins, which are evenly distributed at equal intervals along the length of the high-temperature resistant protective sleeve.

[0015] Preferably, the outer surface of the plug is provided with anti-slip texture.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model, by setting an anti-loosening structure, when the plug is pushed in along the opening direction of the socket, the limiting block is squeezed inward by the inner wall of the socket, causing the spring to drive the elastic column to deform elastically. When the plug is fully inserted, the spring elastically resets and drives the limiting block to embed into the limiting groove of the inner wall of the socket, so that the limiting block and the limiting groove form a mechanical lock, preventing the plug from axially withdrawing, thereby playing an anti-loosening role. At the same time, the high temperature resistant sealing ring on the outside of the plug and the sealing groove on the inner wall of the socket form an interference fit, thereby filling the gap between the plug and the socket, preventing oil and moisture from entering the plug, thereby extending the service life of the wire harness body;

[0018] 2. With the combined effect of the insulating layer and the high-temperature resistant protective sleeve, the insulating layer can insulate the conductor from the surrounding environment or adjacent conductors, and the high-temperature resistant protective sleeve can provide heat insulation for the wire harness body. At the same time, multiple heat dissipation fins are embedded in the outside of the high-temperature resistant protective sleeve, thereby increasing the heat dissipation effect of the wire harness body. Attached Figure Description

[0019] Figure 1 This is a front view of the engine injector wiring harness of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the engine injector wiring harness of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-section of the engine injector wiring harness of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the socket of the engine injector wiring harness of this utility model;

[0023] In the diagram: 1-Wire harness body, 2-Plug, 3-Socket, 4-Anti-loosening structure, 41-Elastic post, 42-Spring, 43-Limiting block, 5-Limiting groove, 6-Sealing component, 7-Sealing groove, 8-Insulation layer, 9-Protective layer, 10-Heat dissipation fins, 11-Anti-slip texture. Detailed Implementation

[0024] See Figures 1 to 4This utility model relates to an engine injector wiring harness, comprising a wiring harness body 1, a plug 2, a socket 3, an anti-loosening structure 4, an elastic post 41, a spring 42, a limiting block 43, a limiting groove 5, a sealing assembly 6, and a sealing groove 7. The wiring harness body 1 has a plug 2 integrally formed at one end, and a socket 3 is installed on the outside of the plug 2. Anti-loosening structures 4 are provided on both sides of the plug 2. Each anti-loosening structure 4 includes an elastic post 41, a spring 42, and a limiting block 43. The elastic post 41 is installed on the side wall of the plug 2, the spring 42 is sleeved on the elastic post 41, and the limiting block 43 is installed at the end of the elastic post 41. One end of the socket 3 has a fitting for the plug 2. The socket 3 has an opening, and the inner wall of the socket 3 has a limiting groove 5 that is adapted to and corresponds to the limiting block 43. The plug 2 is fitted with two sealing components 6 on the outside, and the inner wall of the socket 3 has two sealing grooves 7 that are adapted to and correspond to the sealing components 6. When the plug 2 is pushed in along the opening direction of the socket 3, the limiting block 43 is squeezed inward by the inner wall of the socket 3, so that the spring 42 drives the elastic column 41 to deform elastically. When the plug 2 is fully inserted, the spring 42 elastically resets and drives the limiting block 43 to embed into the limiting groove 5 on the inner wall of the socket 3, so that the limiting block 43 and the limiting groove 5 form a mechanical lock, preventing the plug 2 from axially withdrawing, thereby playing a role in preventing loosening.

[0025] See Figure 2 The sealing component 6 is a high-temperature resistant sealing ring. The high-temperature resistant sealing ring forms an interference fit with the sealing groove 7 on the inner wall of the socket 3. By forming an interference fit between the high-temperature resistant sealing ring and the sealing groove 7 on the inner wall of the socket 3, the gap between the plug 2 and the socket 3 is filled, thus preventing oil and moisture from entering the plug 2.

[0026] See Figure 3 The outer surface of the wire harness body 1 is provided with an insulating layer 8, which can insulate the conductor from the surrounding environment or adjacent conductors.

[0027] See Figure 3 The outer surface of the insulation layer 8 is provided with a protective layer 9, which is a high-temperature resistant protective sleeve that can provide heat insulation for the wire harness body 1.

[0028] See Figure 2 The outer surface of the high-temperature resistant protective sleeve is embedded with a plurality of heat dissipation fins 10. The heat dissipation fins 10 are evenly distributed at equal intervals along the length of the high-temperature resistant protective sleeve, and the heat dissipation fins 10 can accelerate the heat dissipation effect of the wire harness body 1.

[0029] See Figure 2 The outer surface of the plug 2 is provided with anti-slip texture 11, which can increase the friction between the plug 2 and the socket 3, thereby further increasing the anti-loosening performance of the plug 2.

[0030] The working process of this utility model:

[0031] During operation, when the plug 2 is pushed into the socket 3 along its opening direction, the limiting block 43 is compressed inward by the inner wall of the socket 3, causing the spring 42 to drive the elastic column 41 to deform elastically. After the plug 2 is fully inserted, the spring 42 elastically returns to its original position, causing the limiting block 43 to embed into the limiting groove 5 on the inner wall of the socket 3. This creates a mechanical lock between the limiting block 43 and the limiting groove 5, preventing the plug 2 from axially exiting and thus preventing loosening. At the same time, the high-temperature resistant sealing ring on the outside of the plug 2 forms an interference fit with the sealing groove 7 on the inner wall of the socket 3, thereby filling the gap between the plug 2 and the socket 3 and preventing oil and moisture from entering the plug 2, thus extending the service life of the wiring harness body 1.

[0032] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An engine fuel injector wiring harness, characterized in that: The assembly includes a wire harness body (1), a plug (2), a socket (3), an anti-loosening structure (4), an elastic post (41), a spring (42), a limiting block (43), a limiting groove (5), a sealing component (6), and a sealing groove (7); one end of the wire harness body (1) is integrally formed with a plug (2), the plug (2) is externally mounted with a socket (3), and the plug (2) is provided with anti-loosening structures (4) on both sides. The anti-loosening structure (4) includes an elastic post (41), a spring (42), and a limiting block (43). The elastic post (41) is installed on the side wall of the plug (2), the spring (42) is sleeved on the elastic post (41), the limiting block (43) is installed at the end of the elastic post (41), one end of the socket (3) is provided with an opening adapted to the plug (2), and the inner wall of the socket (3) is provided with a limiting groove (5) adapted to and corresponding to the limiting block (43); two sealing components (6) are sleeved on the outside of the plug (2), and two sealing grooves (7) adapted to and corresponding to the sealing components (6) are provided on the inner wall of the socket (3).

2. The engine injector wiring harness as described in claim 1, characterized in that: The sealing component (6) is a high-temperature resistant sealing ring, which forms an interference fit with the sealing groove (7) on the inner wall of the socket (3).

3. The engine injector wiring harness as described in claim 1, characterized in that: The outer surface of the wire harness body (1) is provided with an insulating layer (8).

4. The engine injector wiring harness as described in claim 3, characterized in that: The outer surface of the insulating layer (8) is provided with a protective layer (9), which is a high-temperature resistant protective sleeve.

5. The engine injector wiring harness as described in claim 4, characterized in that: The outer surface of the high-temperature resistant protective sleeve is embedded with multiple heat dissipation fins (10), and the heat dissipation fins (10) are evenly distributed at equal intervals along the length direction of the high-temperature resistant protective sleeve.

6. The engine injector wiring harness as described in claim 1, characterized in that: The outer surface of the plug (2) is provided with anti-slip texture (11).

Images