High-temperature-resistant flame-retardant wire harness

Abstract

The utility model discloses a wire harness with high temperature resistance and flame retardation performance, comprising a wire harness housing, one end of the wire harness housing is provided with a wiring terminal, and the other end of the wire harness housing is connected with a cable harness through a bending sheath; the cable bundle comprises an outermost outer protective layer, a red copper mesh interlayer is arranged in the outer protective layer, a plurality of second protective layers are arranged in the red copper mesh interlayer, signal transmission cores are arranged in the second protective layers, and a filling layer is arranged between the second protective layers and the red copper mesh interlayer. According to the high-temperature-resistant flame-retardant wire harness, protection can be enhanced step by step in a progressive mode through a multi-layer isolation structure, the effects of insulation, electromagnetic shielding, heat insulation and flame retardance are provided for the signal transmission core, and the stability and safety of electric signal transmission in a high-temperature environment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wire harnesses, specifically to wire harnesses with high temperature resistance and flame retardant properties. Background Technology

[0002] A wire harness is a type of cable, invented to provide signal and power transmission for a group of load sources. Therefore, wire harnesses are an indispensable signal transmission device in electronic systems such as automobiles, airplanes, and high-speed trains. Someone once made a vivid analogy: a microcomputer is like the human brain, a sensor is like a sensory organ, an actuator is like a kinetic organ, and a wire harness is like the nerves and blood vessels, which shows its importance. As human society develops towards automation and intelligence, the demand for wire harnesses is constantly expanding, and the functional requirements for wire harnesses are also getting higher and higher.

[0003] Due to the importance of wire harnesses, various wire harnesses with specific functions and suitable for different scenarios are constantly being invented. For example, Chinese patent application number CN202322662039.7 describes a flexible aluminum alloy wire harness for electric bicycles, belonging to the field of aluminum alloy wire harness technology. This flexible aluminum alloy wire harness for electric bicycles includes a first wire harness layer, a second wire harness layer inside the first wire harness layer, a transverse wire harness sleeve inside the second wire harness layer, and multiple aluminum alloy wire cores transversely arranged inside the transverse wire harness sleeve. Support components are provided at both ends of the first wire harness layer, and the support components include transverse connecting blocks. The transverse connecting blocks are located near one end of the first wire harness layer and are fixedly connected to the first wire harness layer. The above patent is a type of wire harness applied to electric bicycles. However, the above-mentioned cables have poor high-temperature resistance and flame retardant properties, making them unsuitable for high-temperature working environments. Utility Model Content

[0004] The purpose of this invention is to provide a wire harness with high temperature resistance and flame retardant properties, so as to solve the problem of poor high temperature resistance and flame retardant properties of existing wire harnesses mentioned in the background art.

[0005] The technical solution of this utility model is as follows: a high-temperature resistant and flame-retardant wire harness, including a wire harness housing, one end of which is equipped with a terminal block, and the other end of which is connected to a cable harness through a bent sheath;

[0006] The cable bundle includes an outermost sheath, inside which is a copper mesh interlayer, inside which are multiple second protective layers, inside which is a signal transmission core, and between the second protective layers and the copper mesh interlayer is a filler layer.

[0007] Preferably, the wire harness housing and the bending sheath are integrally formed, and the bending sheath is fixedly and sealed together with the wire harness.

[0008] Preferably, the copper mesh interlayer is adhesively bonded to the outer protective layer, and the copper mesh interlayer is adhesively bonded to the filler layer.

[0009] Preferably, the filling layer contains multiple stranded wires, and the stranded wires are made of insulating rubber tape.

[0010] Preferably, the filling layer is made of aerogel material.

[0011] Preferably, the second protective layer includes an anti-slip layer adhesively bonded to the filling layer, an aerogel felt layer is disposed between the anti-slip layer and the insulating layer, and the insulating layer is connected to the signal transmission core disposed in the receiving groove through an adhesive layer.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0013] This type of high-temperature resistant and flame-retardant wire harness can provide insulation, electromagnetic shielding, heat insulation, and flame retardancy for the signal transmission core through a multi-layered isolation structure and progressively enhanced protection, ensuring the stability and safety of electrical signal transmission in high-temperature environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the cable harness of this utility model;

[0017] Figure 3 This is a cross-sectional view of the second protective layer of this utility model.

[0018] The components are: 1. Wire harness housing; 2. Terminal block; 3. Bending sheath; 4. Cable bundle; 401. Outer sheath; 402. Copper mesh interlayer; 403. Filler layer; 404. Stranded wire; 405. Second protective layer; 406. Signal transmission core; 4051. Anti-slip layer; 4052. Aerogel felt layer; 4053. Insulation layer; 4054. Adhesive layer; 4055. Receiving groove. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figures 1-2 A high-temperature resistant and flame-retardant wire harness includes a wire harness housing 1, one end of which is equipped with a terminal block 2, and the other end of the wire harness housing 1 is connected to a cable harness 4 through a bent sheath 3.

[0021] The cable bundle 4 includes an outermost outer sheath 401, an inner copper mesh interlayer 402, an inner copper mesh interlayer 402, an inner copper mesh interlayer 402, an inner multiple second protective layers 405, an inner signal transmission core 406, and a filler layer 403 between the second protective layers 405 and the copper mesh interlayer 402.

[0022] See Figure 1 The wire harness housing 1 and the bending sleeve 3 are integrally formed. The bending sleeve 3 and the cable harness 4 are fixedly and sealed together. This design makes it convenient for the bending sleeve 3 to provide bending protection for the cable harness 4 when the insertion angle needs to be adjusted, so as to avoid damage caused by frequent bending of the cable harness 4 ends.

[0023] See Figure 2 The copper mesh interlayer 402 is glued to the outer sheath 401, and the copper mesh interlayer 402 is glued to the filler layer 403. This arrangement makes it easy to take advantage of the good heat dissipation effect of the copper mesh interlayer 402. When the outer sheath 401 is ignited, the excellent heat dissipation effect of the copper mesh interlayer 402 can prevent the flame outside the outer sheath 401 from igniting the internal structure. At the same time, with the cooperation of the filler layer 403, it provides flame-retardant and heat-insulating protection for the cable bundle 4. In addition, the copper sleeve also has an electromagnetic shielding function to prevent external electromagnetic signals from interfering with the signal transmission of the internal signal transmission core 406.

[0024] See Figure 1 The filling layer 403 has multiple stranded wires 404 inside. The stranded wires 404 are made of insulating rubber tape. This arrangement can form a grid through the stranded wires 404, which improves the stability of the internal structure of the cable bundle 4.

[0025] See Figure 2 The filling layer 403 is made of aerogel material, which has good heat insulation and flame retardant effects, as well as good buffering effect, and can provide good protection for the signal transmission core 406.

[0026] See Figure 3The second protective layer 405 includes an anti-slip layer 4051 that is adhesively bonded to the filling layer 403. An aerogel felt layer 4052 is provided between the anti-slip layer 4051 and the insulation layer 4053. The insulation layer 4053 is connected to the signal transmission core 406 disposed in the receiving groove 4055 through the adhesive layer 4054. This arrangement facilitates the formation of secondary protection through the insulation layer 4053 and the aerogel felt layer 4052, improving the flame retardant, heat insulation and insulation effect of the wire harness, protecting the signal transmission core 406 in the receiving groove 4055 and ensuring transmission quality.

[0027] Working principle: When using this device, the user holds the cable harness housing 1, plugs the terminal block 2 into the external electronic device, and uses the bending sleeve 3 to provide bending protection for the cable harness 4. The signal transmission core 406 inside the bending sleeve 3 transmits electrical signals. During this process, the outer sheath 401 provides external anti-friction and anti-compression protection for the cable harness 4. The copper mesh interlayer 402 provides electromagnetic shielding for the signal transmission core 406, preventing external electromagnetic signals from interfering with the signal transmission of the internal signal transmission core 406. When the outer sheath 401 is ignited, the excellent heat dissipation effect of the copper mesh interlayer 402 can prevent the flame outside the outer sheath 401 from igniting the internal structure. At the same time, with the cooperation of the filling layer 403, it provides flame-retardant and heat-insulating protection for the cable harness 4.

[0028] In this specification, the terms "connection," "installation," "fixing," and "setting" are interpreted broadly. For example, "connection" can mean a fixed connection or an indirect connection via an intermediate component without affecting the relationship between components and the technical effect. It can also mean an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances. In this utility model, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this utility model and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the position of each component and the matching relationship between them, this utility model usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions and matching relationships also apply to other components / other pairs of components.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant and flame-retardant wire harness, characterized in that: Includes a wire harness housing (1), one end of which is equipped with a terminal block (2), and the other end of which is connected to a cable harness (4) via a bent sheath (3); The cable bundle (4) includes an outermost outer sheath (401), inside which is a copper mesh interlayer (402), inside which are multiple second protective layers (405), inside which are signal transmission cores (406), and between the second protective layers (405) and the copper mesh interlayer (402) is a filler layer (403).

2. The high-temperature resistant and flame-retardant wire harness according to claim 1, characterized in that: The wire harness housing (1) and the bending sheath (3) are integrally formed, and the bending sheath (3) and the cable harness (4) are fixedly and sealed together.

3. The high-temperature resistant and flame-retardant wire harness according to claim 1, characterized in that: The copper mesh interlayer (402) is bonded to the outer protective layer (401), and the copper mesh interlayer (402) is bonded to the filling layer (403).

4. The high-temperature resistant and flame-retardant wire harness according to claim 1, characterized in that: The filling layer (403) is provided with multiple stranded wires (404), and the stranded wires (404) are made of insulating rubber tape.

5. The high-temperature resistant and flame-retardant wire harness according to claim 1, characterized in that: The filling layer (403) is made of aerogel material.

6. The high-temperature resistant and flame-retardant wire harness according to claim 1, characterized in that: The second protective layer (405) includes an anti-slip layer (4051) that is adhesively bonded to the filling layer (403). An aerogel felt layer (4052) is disposed between the anti-slip layer (4051) and the insulating layer (4053). The insulating layer (4053) is connected to the signal transmission core (406) disposed in the receiving groove (4055) through an adhesive layer (4054).

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