High-temperature-resistant wiring harness structure for electric vehicle

Abstract

The utility model discloses a kind of electric vehicle high-temperature-resistant wiring harness structures, including insulating filler layer and inner layer component, the inside of insulating filler layer is installed wire core, and wire core and insulating filler layer are inlayed connection, the outer side of insulating filler layer is installed in inner layer component, and inner layer component includes iron fluorine dragon layer and heat reflection layer, the inside of iron fluorine dragon layer is installed heat reflection layer.This kind of electric vehicle high-temperature-resistant wiring harness structure, compared with the existing high-temperature-resistant wiring harness structure, wiring harness of type E12REV can encounter high-temperature environment when using, need high-temperature-resistant structure, wire core is separated by insulating filler layer, prevent wire core contact short circuit, iron fluorine dragon layer endures 250 ℃ instantaneous high temperature, heat reflection layer reduces heat transfer to inside by reflecting infrared radiation, heat insulation layer is crosslinked polyethylene, can long-term withstand 125 ℃ high temperature, metal mesh skeleton is buried in heat insulation layer, provide support effect, effectively improve the high-temperature-resistant ability of wiring harness.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature resistant wiring harness technology, specifically a high-temperature resistant wiring harness structure for electric vehicles. Background Technology

[0002] Automotive wiring harnesses are the core of a vehicle's electrical network; without them, there is no automotive electrical system. A wiring harness is an assembly consisting of copper-plated contact terminals (connectors) crimped to wires and cables, then covered with a molded insulator or an outer metal shell, and bundled together to form a connected circuit. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing, and downstream application industries. Wiring harnesses have a wide range of applications, including automobiles, home appliances, computer and communication equipment, and various electronic instruments. Body wiring harnesses connect the entire vehicle body and are generally H-shaped.

[0003] With the rapid development of the automotive industry, the reliability of automotive wiring harnesses has received increasing attention. Currently, automotive wiring harnesses mainly consist of wires, connectors, insulating sleeves, and sheaths. During vehicle operation, the wiring harness needs to withstand the effects of high temperatures, making it prone to short circuits, open circuits, and other faults, which can affect the normal operation of the vehicle. Therefore, a high-temperature resistant automotive wiring harness is needed. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature resistant wiring harness structure for electric vehicles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant wiring harness structure for electric vehicles, comprising an insulating filler layer and an inner layer assembly. A wire core is installed inside the insulating filler layer, and the wire core and the insulating filler layer are interlocked. The inner layer assembly is installed outside the insulating filler layer, and the inner layer assembly includes a Teflon layer and a heat-reflective layer. The heat-reflective layer is installed inside the Teflon layer. The Teflon layer can withstand instantaneous high temperatures of 250°C, and the heat-reflective layer reduces heat transfer to the interior by reflecting infrared radiation.

[0006] Furthermore, a middle layer assembly is installed on the outside of the Teflon layer, and the middle layer assembly is bonded to the Teflon layer.

[0007] Furthermore, the middle layer component includes a heat insulation layer and a metal mesh skeleton, and the heat insulation layer is internally embedded with the metal mesh skeleton. The heat insulation layer is made of cross-linked polyethylene, which can withstand high temperatures of 125°C for a long time. The metal mesh skeleton is embedded in the heat insulation layer to provide support.

[0008] Furthermore, an outer layer component is installed on the outside of the insulation layer, and the outer layer component is bonded to the insulation layer.

[0009] Furthermore, the outer component includes a burn-resistant layer and a waterproof layer, and the waterproof layer is installed on the inner side of the burn-resistant layer. The burn-resistant layer effectively prevents damage caused by direct burning, and the waterproof layer prevents water infiltration and short circuits.

[0010] Furthermore, an optical fiber sensor is installed inside the burn-resistant layer, and an alarm is installed above the optical fiber sensor. The optical fiber sensor senses the external temperature, and if the temperature exceeds 150°C, it automatically cuts off the power to protect the cable and issues an alarm through the alarm.

[0011] Furthermore, a wear-resistant layer is installed around the burn-resistant layer, and the wear-resistant layer and the burn-resistant layer are embedded together. The wear-resistant layer has a threaded structure, which improves wear resistance while increasing the contact area with air, thus facilitating heat dissipation.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the EREV wire harness may encounter high-temperature environments during use, requiring a high-temperature resistant structure. The wire cores are separated by an insulating filling layer to prevent short circuits between the wire cores. The Teflon layer can withstand instantaneous high temperatures of 250°C. The heat-reflective layer reduces heat transfer to the interior by reflecting infrared radiation. The heat insulation layer is made of cross-linked polyethylene, which can withstand high temperatures of 125°C for a long time. The metal mesh skeleton is embedded in the heat insulation layer to provide support and effectively improve the high-temperature resistance of the wire harness. The wear-resistant layer has a threaded structure, which improves wear resistance while increasing the contact area with air for easy heat dissipation. The burn-resistant layer effectively prevents damage caused by direct burning. The fiber optic sensor is embedded in the burn-resistant layer. The fiber optic sensor senses the external temperature. If the temperature exceeds 150°C, it automatically cuts off the power to protect the cable and issues an alarm. The waterproof layer prevents water infiltration and prevents short circuits.

[0013] 1. The wire harness of this utility model, model E12REV, may encounter high-temperature environments during use, requiring a high-temperature resistant structure. The wire cores are separated by an insulating filler layer to prevent short circuits between the wire cores. The Teflon layer can withstand instantaneous high temperatures of 250°C. The heat reflective layer reduces heat transfer to the interior by reflecting infrared radiation. The heat insulation layer is made of cross-linked polyethylene, which can withstand high temperatures of 125°C for a long time. The metal mesh skeleton is embedded in the heat insulation layer to provide support and effectively improve the high-temperature resistance of the wire harness.

[0014] 2. The wear-resistant layer of this utility model has a threaded structure, which improves wear resistance and increases the contact area with air, facilitating heat dissipation. The burn-resistant layer effectively prevents damage caused by direct burning. The fiber optic sensor is embedded in the burn-resistant layer. The fiber optic sensor senses the external temperature. If the temperature exceeds 150℃, it automatically cuts off the power to protect the cable and issues an alarm. The waterproof layer prevents water from seeping in and prevents short circuits. Attached Figure Description

[0015] Figure 1This is a three-dimensional cross-sectional view of a high-temperature resistant wiring harness structure for electric vehicles according to this utility model.

[0016] Figure 2 This is a partial three-dimensional cross-sectional view of the inner layer component of a high-temperature resistant wiring harness structure for electric vehicles according to this utility model.

[0017] Figure 3 This is a three-dimensional cross-sectional view of the outer component of a high-temperature resistant wiring harness structure for electric vehicles according to this utility model.

[0018] In the diagram: 1. Insulation filler layer; 2. Wire core; 3. Inner layer assembly; 301. Teflon layer; 302. Heat reflective layer; 4. Middle layer assembly; 401. Heat insulation layer; 402. Metal mesh skeleton; 5. Outer layer assembly; 501. Burn-resistant layer; 502. Waterproof layer; 6. Fiber optic sensor; 7. Alarm; 8. Wear-resistant layer. Detailed Implementation

[0019] like Figure 1 and Figure 2 As shown, a high-temperature resistant wiring harness structure for electric vehicles includes an insulating filler layer 1 and an inner layer assembly 3. A wire core 2 is installed inside the insulating filler layer 1, and the wire core 2 is embedded in the insulating filler layer 1. The inner layer assembly 3 is installed on the outside of the insulating filler layer 1, and includes a Teflon layer 301 and a heat-reflective layer 302. The heat-reflective layer 302 is installed inside the Teflon layer 301. A middle layer assembly 4 is installed on the outside of the Teflon layer 301, and the middle layer assembly 4 is bonded to the Teflon layer 301. The middle layer assembly 4 includes a heat insulation layer 401 and a metal mesh skeleton 402. The heat layer 401 is internally embedded with a metal mesh skeleton 402. The E12REV wire harness may encounter high-temperature environments during use and requires a high-temperature resistant structure. The wire cores 2 are separated by an insulating filler layer 1 to prevent short circuits between the wire cores 2. The Teflon layer 301 can withstand instantaneous high temperatures of 250℃. The heat reflective layer 302 reduces heat transfer to the interior by reflecting infrared radiation. The heat insulation layer 401 is made of cross-linked polyethylene and can withstand high temperatures of 125℃ for a long time. The metal mesh skeleton 402 is embedded in the heat insulation layer 401 to provide support and effectively improve the high-temperature resistance of the wire harness.

[0020] like Figure 1 and Figure 3As shown, an outer layer component 5 is installed on the outside of the heat insulation layer 401, and the outer layer component 5 is bonded to the heat insulation layer 401. The outer layer component 5 includes a burn-resistant layer 501 and a waterproof layer 502, and the waterproof layer 502 is installed on the inside of the burn-resistant layer 501. A fiber optic sensor 6 is installed inside the burn-resistant layer 501, and an alarm 7 is installed above the fiber optic sensor 6. A wear-resistant layer 8 is installed on the periphery of the burn-resistant layer 501, and the wear-resistant layer 8 is embedded in the burn-resistant layer 501. The wear-resistant layer 8 has a threaded structure, which improves wear resistance and increases the contact area with air, facilitating heat dissipation. The burn-resistant layer 501 effectively prevents damage caused by direct burning. The fiber optic sensor 6 is embedded in the burn-resistant layer 501. The fiber optic sensor 6 senses the external temperature. If the temperature exceeds 150°C, it automatically cuts off the power to protect the cable and issues an alarm through the alarm 7. The waterproof layer 502 prevents moisture infiltration and short circuits.

[0021] Working Principle: When using this type of high-temperature resistant wiring harness structure for electric vehicles, firstly, the wiring harness of model E12REV may encounter high-temperature environments during use, requiring a high-temperature resistant structure. The wire cores 2 are separated by an insulating filler layer 1 to prevent short circuits between the wire cores 2. The Teflon layer 301 can withstand instantaneous high temperatures of 250℃. The heat reflective layer 302 reduces heat transfer to the interior by reflecting infrared radiation. The heat insulation layer 401 is made of cross-linked polyethylene and can withstand high temperatures of 125℃ for a long time. The metal mesh skeleton 402 is embedded in the heat insulation layer 401 to provide support and effectively improve the high-temperature resistance of the wiring harness. The wear-resistant layer 8 has a threaded structure, which improves wear resistance and increases the contact area with air, facilitating heat dissipation. The burn-resistant layer 501 effectively prevents damage caused by direct burning. The fiber optic sensor 6 is embedded in the burn-resistant layer 501. The fiber optic sensor 6 senses the external temperature. If the temperature exceeds 150℃, it automatically cuts off the power to protect the cable and issues an alarm through the alarm 7. The waterproof layer 502 prevents water infiltration and prevents short circuits.

Claims

1. A high-temperature resistant wiring harness structure for electric vehicles, comprising an insulating filler layer (1) and an inner layer component (3), characterized in that, The insulating filling layer (1) has a wire core (2) installed inside it, and the wire core (2) and the insulating filling layer (1) are connected by an embedded connection. The inner layer assembly (3) is installed on the outside of the insulating filling layer (1), and the inner layer assembly (3) includes a Teflon layer (301) and a heat reflective layer (302). The heat reflective layer (302) is installed inside the Teflon layer (301).

2. The high-temperature resistant wiring harness structure for electric vehicles according to claim 1, characterized in that, A middle layer component (4) is installed on the outside of the Teflon layer (301), and the middle layer component (4) is bonded to the Teflon layer (301).

3. The high-temperature resistant wiring harness structure for electric vehicles according to claim 2, characterized in that, The middle layer component (4) includes a heat insulation layer (401) and a metal mesh frame (402), and the metal mesh frame (402) is embedded and connected inside the heat insulation layer (401).

4. The high-temperature resistant wiring harness structure for electric vehicles according to claim 3, characterized in that, An outer layer component (5) is installed on the outside of the heat insulation layer (401), and the outer layer component (5) is bonded to the heat insulation layer (401).

5. The high-temperature resistant wiring harness structure for electric vehicles according to claim 4, characterized in that, The outer component (5) includes a burn-resistant layer (501) and a waterproof layer (502), and the waterproof layer (502) is installed on the inner side of the burn-resistant layer (501).

6. The high-temperature resistant wiring harness structure for electric vehicles according to claim 5, characterized in that, An optical fiber sensor (6) is installed inside the burn-resistant layer (501), and an alarm (7) is installed above the optical fiber sensor (6).

7. The high-temperature resistant wiring harness structure for electric vehicles according to claim 5, characterized in that, The burn-resistant layer (501) is surrounded by a wear-resistant layer (8), and the wear-resistant layer (8) and the burn-resistant layer (501) are interlocked.

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