A multi-layer composite high-temperature-resistant anti-interference wire harness

Abstract

The utility model relates to the field of wiring harness, concretely relates to a multilayer composite high temperature resistant anti -interference wiring harness, including wiring harness main part, the outside of wiring harness main part is wrapped with protection shell, the inside of protection shell evenly circumference is provided with a plurality of expanding agent, the outside of expanding agent is provided with the protection film located the outside of protection shell, the outside of protection shell equidistance is provided with the shake shell corresponding with expanding agent, be provided with the resistance strip in the shake shell. The utility model wiring harness main part has good high temperature resistance, and the outside is provided with expanding agent, and the inside of the expanding agent contains heat -insulating material, can even expand and effectively block heat conduction under high temperature, further promote integral heat -resistant capacity, cooperate the design through the shake shell and the resistance strip, make expanding agent even act on the outside of wiring harness when heat expansion, form dynamic fixed effect, prevent the displacement of wiring harness because of high temperature deformation or vibration, strengthen the structural stability.

Description

Technical Field

[0001] This utility model relates to the field of wire harnesses, specifically to a multi-layer composite high-temperature resistant and anti-interference wire harness. Background Technology

[0002] A Chinese patent proposes an anti-interference wire harness (application number: CN202421201588.2), comprising aluminum foil tape, and further comprising: a double-sided conductive tape fixedly sleeved on the outside of the aluminum foil tape, an outer protective sleeve fixedly sleeved on the outside of the double-sided conductive tape, and a magnetic core movably sleeved on the outside of the outer protective sleeve. An anti-interference protective sleeve is movably installed on the outside of the magnetic core. The wire harness is wrapped with aluminum foil tape for anti-interference, then wrapped with double-sided conductive tape for insulation, and then protected by the outer protective sleeve. This provides anti-interference protection, making the wire harness less susceptible to electromagnetic influence, thereby improving the stability of the wire harness. Furthermore, the magnetic core's extremely high impedance and low permeability (less than several hundred) provide magnetic guidance, and the anti-interference protective sleeve protects the magnetic core. The low permeability of the magnetic core enhances the efficiency of wire harness transmission.

[0003] These existing wire harnesses typically use a single material or a simple covering structure, which are prone to aging and deformation in high-temperature environments, leading to unstable signal transmission. At the same time, they lack effective electromagnetic shielding measures, making them susceptible to external electromagnetic interference and affecting the normal operation of the equipment. Most wire harness protection structures are statically fixed and cannot dynamically adapt to changes in ambient temperature. Especially in the event of sudden high temperatures, the lack of effective buffering and fixing mechanisms can easily cause problems such as wire harness displacement and breakage, thereby reducing their service life and safety.

[0004] Therefore, a wire harness structure with good high-temperature resistance, anti-interference ability, and the ability to self-adaptively fix under high-temperature conditions is needed to meet the usage requirements under complex working conditions. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a multi-layer composite high-temperature resistant and anti-interference wire harness.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a multi-layer composite high-temperature resistant and anti-interference wire harness, including a wire harness body, the wire harness body is wrapped with a protective shell, the protective shell has a plurality of expanding agents evenly arranged in a circular pattern inside, the expanding agents are surrounded by a protective film located outside the protective shell, the protective shell is surrounded by equidistant shaking shells corresponding to the expanding agents, the shaking shells are provided with abutment strips inside, and the shaking shells are provided with protrusions outside.

[0008] Optionally, the wire harness body includes a wire core, a shielding layer, and a protective layer, wherein the shielding layer wraps around the wire core and the protective layer wraps around the shielding layer.

[0009] Optionally, the protective shell is made of high-temperature resistant and flame-retardant material, and a control groove is formed on the outside of the protective shell. The control groove is located on both sides of the expanding agent, and an insertion groove is connected between the control groove and the expanding agent.

[0010] Optionally, the expanding agent includes an expanding structure, a heat-insulating material is uniformly disposed within the expanding agent, the expanding agent contains an expanding catalyst in the region near the insertion groove, and the protective film ruptures when expanded by the expanding agent.

[0011] Optionally, the shaking shell is annular in shape, and the shaking shell is elastically connected to the protective shell. An abutment strip is provided inside the shaking shell, and the shaking shell is fixedly connected to the abutment strip. The outside of the shaking shell is fixedly connected to the protrusion block.

[0012] Optionally, the abutment strips are located in the control groove, and an abutment block is fixedly connected to one side of each abutment strip, the abutment block penetrating the insertion groove.

[0013] The beneficial effects achieved by this utility model are as follows:

[0014] The main body of this utility model has good high temperature resistance. At the same time, an expansion agent is set on its exterior. The expansion agent contains heat insulation material, which can expand evenly at high temperature and effectively block heat conduction, further improving the overall heat resistance. Through the cooperative design of the shaking shell and the contact strip, the expansion agent can act evenly on the exterior of the wire harness when heated and expanded, forming a dynamic fixing effect, preventing the wire harness from shifting due to high temperature deformation or vibration, and enhancing structural stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the shaking shell;

[0017] Figure 3 This is a structural cross-sectional view of the main body of the wire harness;

[0018] Figure 4 yes Figure 3 A magnified schematic diagram of part A in the middle.

[0019] In the diagram, 1 is the main body of the wire harness; 101 is the wire core; 102 is the shielding layer; 103 is the protective layer; 2 is the protective shell; 201 is the control groove; 202 is the insertion groove; 3 is the expansion agent; 4 is the protective shell; 5 is the shaking shell; 6 is the contact strip; 601 is the contact block; and 7 is the protrusion. Detailed Implementation

[0020] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings. Example 1

[0021] like Figure 1-4 As shown, this utility model provides a multi-layer composite high-temperature resistant and anti-interference wire harness, including a wire harness body 1, a protective shell 4 wrapped around the wire harness body 1, a plurality of expanding agents 3 uniformly arranged circumferentially inside the protective shell 4, a protective film located outside the protective shell 4 outside the expanding agents 3, and swaying shells 5 corresponding to the expanding agents 3 arranged at equal intervals outside the protective shell 4, an abutment strip 6 arranged inside the swaying shell 5, and a protrusion 7 arranged outside the swaying shell 5.

[0022] The main body 1 of this utility model has good high temperature resistance. At the same time, an expansion agent 3 is set on its exterior. The expansion agent 3 contains heat insulation material, which can expand evenly at high temperature and effectively block heat conduction, further improving the overall heat resistance. Through the cooperative design of the shaking shell 5 and the contact strip 6, the expansion agent 3 can act evenly on the exterior of the wire harness when heated and expanded, forming a dynamic fixing effect, preventing the wire harness from shifting due to high temperature deformation or vibration, and enhancing structural stability. Example 2

[0023] like Figure 1 and Figure 3-4 As shown, the main body 1 of the wire harness includes a wire core 101, a shielding layer 102 and a protective layer 103. The shielding layer 102 wraps around the wire core 101, and the protective layer 103 wraps around the shielding layer 102.

[0024] Specifically, the wire core 101 is made of multi-strand copper alloy, silver-plated or tin-plated copper wire, which has good conductivity and flexibility. The shielding layer 102 is made of high-density metal braided mesh, which effectively shields electromagnetic interference. The protective layer 103 is made of high-temperature resistant material to ensure that the wire harness can still work stably in high-temperature environments.

[0025] In this embodiment, the protective shell 4 is made of high temperature resistant and flame retardant material. A control groove 201 is opened on the outside of the protective shell 4. The control groove 201 is located on both sides of the expanding agent 3. An insertion groove 202 is connected between the control groove 201 and the expanding agent 3.

[0026] Specifically, the insertion slot 202 is designed to match the expanding agent 3 to ensure that the expanding agent 3 can be subjected to uniform force when it expands at high temperature.

[0027] In this embodiment, the expanding agent 3 includes an expanding structure inside, and heat insulation material is uniformly disposed inside the expanding agent 3. The expanding agent 3 contains an expanding catalyst in the area near the insertion groove 202, and the protective film will rupture when it is expanded by the expanding agent 3.

[0028] Specifically, the expansion agent 3 will come into contact with the expansion catalyst when it is squeezed and react rapidly, thereby expanding its volume and filling the space outside the protective shell 4, and playing a connecting and fixing role after expansion. Example 3

[0029] like Figure 1-2 As shown, the shaking shell 5 is in the shape of a ring. The shaking shell 5 and the protective shell 4 are elastically connected. The shaking shell 5 is provided with an abutment strip 6 inside. The shaking shell 5 and the abutment strip 6 are fixedly connected. The outside of the shaking shell 5 is fixedly connected with the protrusion 7.

[0030] Specifically, through the set elastic connection, the shaking shell 5 can move freely within a certain range. The set protrusion 7 can be used to fix it relative to the protective shell 4, preventing the shaking shell 5 from moving excessively when not needed, and ensuring the overall stability of the wire harness.

[0031] In this embodiment, the abutment strips 6 are located in the control groove 201, and an abutment block 601 is fixedly connected to one side of the abutment strip 6, with the abutment block 601 penetrating the insertion groove 202.

[0032] In use, the movement of the contact block 601 in the insertion groove 202 allows it to contact the expanding agent 3, thereby controlling the expansion of the expanding agent 3.

[0033] In summary, this application not only provides the main body 1 with good high temperature resistance and anti-interference performance, but also provides a protective shell 4 on the outside of the main body 1. By using the cooperation of the shaking shell 5 and the contact strip 6, the expansion agent 3 is ensured to expand evenly at high temperature, which facilitates the fixation of the main body 1. The heat insulation material set in the expansion agent 3 effectively prevents heat conduction and plays an auxiliary heat insulation role.

[0034] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A multi-layer composite high-temperature resistant and anti-interference wire harness, characterized in that: The device includes a wire harness body (1), which is wrapped with a protective shell (4). Multiple expanding agents (3) are evenly arranged around the inside of the protective shell (4). A protective film is provided outside the expanding agent (3) located outside the protective shell (4). Shaking shells (5) corresponding to the expanding agents (3) are arranged at equal intervals outside the protective shell (4). An abutment strip (6) is provided inside the shaking shell (5). A protruding block (7) is provided outside the shaking shell (5).

2. The multi-layer composite high-temperature resistant and anti-interference wire harness according to claim 1, characterized in that: The main body (1) of the wire harness includes a wire core (101), a shielding layer (102) and a protective layer (103). The shielding layer (102) wraps the wire core (101), and the protective layer (103) wraps the shielding layer (102).

3. The multi-layer composite high-temperature resistant and anti-interference wire harness according to claim 1, characterized in that: The protective shell (4) is made of high temperature resistant and flame retardant material. A control groove (201) is opened on the outside of the protective shell (4). The control groove (201) is located on both sides of the expanding agent (3). An insertion groove (202) is connected between the control groove (201) and the expanding agent (3).

4. The multi-layer composite high-temperature resistant and anti-interference wire harness according to claim 1, characterized in that: The expanding agent (3) includes an expanding structure inside, and heat insulation material is uniformly disposed inside the expanding agent (3). The expanding agent (3) contains an expanding catalyst in the area near the insertion groove (202). The protective film will rupture when it is expanded by the expanding agent (3).

5. The multi-layer composite high-temperature resistant and anti-interference wire harness according to claim 1, characterized in that: The shaking shell (5) is in the shape of a ring. The shaking shell (5) and the protective shell (4) are elastically connected. The shaking shell (5) is provided with an abutment strip (6) inside. The shaking shell (5) and the abutment strip (6) are fixedly connected. The outside of the shaking shell (5) is fixedly connected to the protrusion (7).

6. The multi-layer composite high-temperature resistant and anti-interference wire harness according to claim 3, characterized in that: The abutment strips (6) are located in the control groove (201), and an abutment block (601) is fixedly connected to one side of the abutment strip (6), and the abutment block (601) passes through the insertion groove (202).

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