CN216133690U - Wire harness with high temperature resistance for electric vehicle - Google Patents
Wire harness with high temperature resistance for electric vehicle Download PDFInfo
- Publication number
- CN216133690U CN216133690U CN202122135617.2U CN202122135617U CN216133690U CN 216133690 U CN216133690 U CN 216133690U CN 202122135617 U CN202122135617 U CN 202122135617U CN 216133690 U CN216133690 U CN 216133690U
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- Prior art keywords
- wire harness
- insulating layer
- electric vehicle
- resistant layer
- layer
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 9
- 239000004945 silicone rubber Substances 0.000 claims description 9
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 6
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a high-temperature-resistant wire harness for an electric vehicle, which relates to the technical field of cables and comprises a wire harness body and a connecting terminal arranged at the end part of the wire harness body, wherein the wire harness body comprises a plurality of wire cores and a plurality of functional layers arranged on the peripheries of the wire cores, the functional layers outwards along the radial direction of the wire harness body are sequentially provided with an insulating layer, a heat-insulating layer, a high-temperature-resistant layer and a corrosion-resistant layer, the insulating layer, the heat-insulating layer, the high-temperature-resistant layer and the corrosion-resistant layer are sequentially compounded together, an insulating strip is filled between the wire cores and the insulating layer, a metal net is buried in the high-temperature-resistant layer, and the corrosion-resistant layer is made of carbon fibers. So set up, each functional layer plays certain guard action to the core for the electric motor car pencil has characteristics such as high temperature resistant, corrosion-resistant, and life is longer, can also reduce the incident because of electric motor car pencil high temperature leads to.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a wire harness with high temperature resistance for an electric vehicle.
Background
The electric vehicle, as a vehicle with very common use, has gone into thousands of households, and uses a storage battery as an energy source to convert electric energy into mechanical energy for movement through a controller, a motor and other components.
The wire harness of the electric vehicle is one of main parts of the electric vehicle, is often exposed in the air and subjected to wind, rain and sunshine exposure, and thus higher requirements on high temperature resistance and corrosion resistance of the wire harness of the electric vehicle are provided. After long-time use, the wiring harness of the electric vehicle is often easily corroded by acidic substances in air or rainwater or easily influenced by external high temperature to cause fire, and safety problems such as spontaneous combustion of the electric vehicle occur sometimes, and the wiring harness is gradually valued by manufacturers and consumers.
Therefore, how to improve the high temperature resistance and the corrosion resistance of the electric vehicle wire harness and reduce the occurrence probability of electric vehicle safety accidents becomes an important technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wire harness with high temperature resistance for an electric vehicle, so as to improve the high temperature resistance and the corrosion resistance of the wire harness for the electric vehicle and reduce the occurrence probability of safety accidents of the electric vehicle. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a high-temperature-resistant wire harness for an electric vehicle, which comprises a wire harness body and a connecting terminal arranged at the end part of the wire harness body, wherein the wire harness body comprises a plurality of wire cores and a plurality of functional layers arranged at the periphery of the wire cores, the functional layers are sequentially an insulating layer, a heat-insulating layer, a high-temperature-resistant layer and a corrosion-resistant layer along the radial direction of the wire harness body, the insulating layer, the heat-insulating layer, the high-temperature-resistant layer and the corrosion-resistant layer are sequentially compounded together, an insulating strip is filled between the wire cores and the insulating layer, a metal net is buried in the high-temperature-resistant layer, and the corrosion-resistant layer is made of carbon fibers.
Preferably, connecting terminal includes the conducting strip and sets up perpendicularly the electrically conductive section of thick bamboo of conducting strip one side, be located on the conducting strip the projection position department of electrically conductive section of thick bamboo is equipped with the through-hole, the tip winding of sinle silk is fixed on the outer wall of electrically conductive section of thick bamboo, the through-hole with all be used for supplying outside terminal to penetrate in the electrically conductive section of thick bamboo.
Preferably, the insulating layer and the insulating strip are made of polyethylene.
Preferably, the heat insulation layer is made of glass fiber cotton.
Preferably, the material of the high temperature resistant layer is methyl vinyl silicone rubber.
Preferably, a fixed coil is arranged at the edge position of the conducting strip, and the end part of the wire harness body is penetrated by the fixed coil and is connected with the conducting cylinder.
Preferably, the outer wall of the conductive cylinder is provided with a groove extending along the circumferential direction, and the end part of the wire core is wound in the groove.
According to the technical scheme provided by the utility model, the wire harness body of the wire harness with high temperature resistance for the electric vehicle comprises a wire core and a plurality of functional layers arranged on the periphery of the wire core, wherein an insulating layer is arranged on the periphery of the wire core, a heat insulation layer is arranged on the periphery of the insulating layer, a high temperature resistant layer is sleeved outside the heat insulation layer, and a corrosion resistant layer is arranged outside the high temperature resistant layer. An insulating strip is arranged between the wire core and the insulating layer, a metal net is embedded in the high-temperature-resistant layer, and the corrosion-resistant layer is made of carbon fiber. Insulating layer and insulating strip play fine insulating action, and the insulating layer can the heat in the separation environment, reduce the transmission of environment heat to sinle silk, and high temperature resistant layer makes for electric motor car pencil can tolerate higher temperature, and corrosion-resistant layer can prevent acid material etc. to corrode the sinle silk, and each functional layer all plays the effect of protection sinle silk. So set up, the electric motor car pencil in this scheme has better performance, can be high temperature resistant, plays better guard action to the core, and life is longer, can also reduce the emergence probability of the incident that the electric motor car leads to because of the pencil high temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a wire harness for an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure of a wire harness body in the embodiment of the utility model;
FIG. 3 is a top view of a connection terminal in an embodiment of the utility model;
fig. 4 is a front view of a connection terminal in an embodiment of the present invention.
In the figure:
1-wire harness body, 11-wire core, 12-insulating layer, 13-heat-insulating layer, 14-high temperature-resistant layer, 15-corrosion-resistant layer, 16-insulating strip, 2-connecting terminal, 21-conducting strip, 22-conducting tube, 23-solid coil and 24-groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
An object of the present embodiment is to provide a wire harness for an electric vehicle having high temperature resistance, which solves the problems that the high temperature resistance and the corrosion resistance of the wire harness for the electric vehicle are poor, and the electric vehicle is prone to safety accidents caused by the wire harness.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.
Referring to fig. 1 to 4, in the present embodiment, a wire harness for an electric vehicle having high temperature resistance includes a wire harness body 1 and a connection terminal 2 disposed at an end of the wire harness body 1. The wire harness body 1 comprises a wire core 11 and a plurality of functional layers arranged on the periphery of the wire core 11, each functional layer comprises an insulating layer 12, a heat-insulating layer 13, a high-temperature-resistant layer 14 and a corrosion-resistant layer 15, the insulating layer 12 is arranged on the periphery of the wire core 11, the heat-insulating layer 13 is arranged on the periphery of the insulating layer 12, the high-temperature-resistant layer 14 is sleeved on the outer portion of the heat-insulating layer 13, and the corrosion-resistant layer 15 is arranged on the outer portion of the high-temperature-resistant layer 14. The insulating layer 12, the thermal insulating layer 13, the high temperature resistant layer 14 and the corrosion resistant layer 15 are compositely connected by means of adhesive or hot melt adhesion. An insulating strip 16 is filled between the wire core 11 and the insulating layer 12, a metal net is embedded in the high-temperature resistant layer 14, and the corrosion resistant layer 15 is made of carbon fiber.
The insulating layer 12 and the insulating strips 16 play a good insulating role, and the insulating strips 16 can improve the strength of the wire harness for the electric vehicle and also improve the insulating property of the wire harness; the heat insulation layer 13 can obstruct heat in the environment and reduce the transmission of the environment heat to the wire core 11; the high temperature resistant layer 14 enables the wire harness for the electric vehicle to be resistant to higher temperature, the metal mesh embedded in the high temperature resistant layer 14 can be but is not limited to a copper mesh, the metal mesh not only improves the strength of the wire harness for the electric vehicle, but also balances the heat in the high temperature resistant layer 14, and the safety problems that the wire harness of the electric vehicle is damaged or the electric vehicle is spontaneously combusted due to overheating of some local positions are avoided; the corrosion-resistant layer 15 can prevent acidic substances and the like from corroding the wire core 11, and the carbon fiber has the characteristics of corrosion resistance, high temperature resistance, wear resistance and high strength and modulus in the direction of the limiting shaft.
So set up, each functional layer all plays the effect of protection sinle silk 11 for electric motor car pencil in this embodiment has better performance, can be high temperature resistant, corrosion-resistant, and life is longer, can also reduce the incident's that the electric motor car leads to because of the pencil emergence probability.
Further, the insulating layer 12 and the insulating strip 16 are made of polyethylene. The polyethylene has small meson loss, high resistivity, high breakdown field strength, good weather resistance and good manufacturability, and is the best electric insulating material at present. The medium-density and high-density polyethylene has high strength and hardness, low water permeability and is mainly used as a cable sheath.
Further, the material of the thermal insulation layer 13 is glass fiber cotton. The glass fiber cotton has the characteristics of low heat conductivity coefficient, good sound absorption effect, long fiber, high tensile property and the like, and is widely applied as a heat insulation material. The glass fiber wool has countless fine gas pores, and the fibers are irregularly arranged, so that the glass fiber wool becomes an excellent heat insulation material due to the low heat conductivity coefficient of air.
Further, the material of the high temperature resistant layer 14 is methyl vinyl silicone rubber. The methyl vinyl silicone rubber is vinyl silicone rubber for short, is prepared by copolymerizing dimethyl siloxane and a small amount of vinyl siloxane, and has excellent high temperature resistance, heat resistance, aging resistance and compression deformation resistance. The metal net can be arranged in a mould in the preparation process of the methyl vinyl silicone rubber, and then the methyl vinyl silicone rubber is molded; or after the methyl vinyl silicone rubber is molded, a plurality of metal wires are embedded into the methyl vinyl silicone rubber, and a metal mesh is formed by the plurality of metal wires.
In a preferred embodiment of the present invention, please refer to fig. 3 and 4, the connection terminal 2 includes a conductive plate 21 and a conductive cylinder 22, the conductive cylinder 22 is vertically disposed on one side surface of the conductive plate 21, a through hole is disposed on the conductive plate 21 at a projection position of the conductive cylinder 22, that is, a through hole is disposed at a position on the conductive plate 21 connected to a port of the conductive cylinder 22, an end of the wire core 11 is wound and fixed on an outer wall of the conductive cylinder 22, and the through hole and the conductive cylinder 22 are both used for an external terminal to penetrate. In a particular embodiment, the conductive cylinder 22 has a circular cross-sectional shape with a height of 2mm to 10 mm. The external terminals are terminals that need to be connected to the wire harness body 1 in the electric vehicle, for example, terminals on a power supply.
So set up, sinle silk 11 winding is fixed on electrically conductive section of thick bamboo 22, and electrically conductive section of thick bamboo 22 and conducting strip 21 are the conductor, and the terminal that will connect when using for the electric motor car stretches into through-hole and electrically conductive section of thick bamboo 22 in, and the reuse nut is fixed conducting strip 21 and electrically conductive section of thick bamboo 22 on the terminal and can be realized connecting.
In a preferred embodiment of the present invention, a fixed coil 23 is provided at an edge position of the conductive sheet 21, and an end of the wire harness body 1 is penetrated by the fixed coil 23 and connected to the conductive tube 22. The diameter of the fixed coil 23 is slightly larger than that of the wire harness body 1, and the central axis of the fixed coil 23 is parallel to the plane of the conducting strip 21.
So set up, solid coil 23 can avoid sinle silk 11 tip to break because of buckling or dragging, can also avoid sinle silk 11 tip to break away from being connected because of dragging between with electrically conductive section of thick bamboo 22.
Further, a groove 24 extending along the circumferential direction is formed in the outer wall of the conductive cylinder 22, and the end portion of the wire core 11 is wound in the groove 24. So set up, in recess 24 was arranged in to sinle silk 11, the contact was better between sinle silk 11 and the electrically conductive section of thick bamboo 22, and the winding of being convenient for is connected, prevents that sinle silk 11 from keeping away from the one end of conducting strip 21 from electrically conductive section of thick bamboo 22 and droing.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the utility model comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. A wire harness for an electric vehicle having high temperature resistance, characterized by comprising a wire harness body (1) and a connection terminal (2) provided at an end of the wire harness body (1), the wire harness body (1) comprises a plurality of wire cores (11) and a plurality of functional layers arranged on the periphery of the wire cores (11), wherein the functional layers which are outward along the radial direction of the wire harness body (1) are an insulating layer (12), a heat-insulating layer (13), a high-temperature-resistant layer (14) and a corrosion-resistant layer (15) in sequence, and the insulating layer (12), the heat-insulating layer (13), the high-temperature resistant layer (14) and the corrosion-resistant layer (15) are sequentially compounded together, an insulating strip (16) is filled between the wire core (11) and the insulating layer (12), a metal net is embedded in the high-temperature-resistant layer (14), and the corrosion-resistant layer (15) is made of carbon fibers.
2. The wire harness for the electric vehicle according to claim 1, wherein the connection terminal (2) comprises a conductive sheet (21) and a conductive barrel (22) vertically arranged on one side of the conductive sheet (21), a through hole is arranged on the conductive sheet (21) at a projection position of the conductive barrel (22), the end of the wire core (11) is wound and fixed on the outer wall of the conductive barrel (22), and the through hole and the conductive barrel (22) are used for an external terminal to penetrate.
3. The wire harness for electric vehicle according to claim 1, wherein the insulating layer (12) and the insulating strip (16) are made of polyethylene.
4. The wire harness for an electric vehicle according to claim 1, wherein the heat insulating layer (13) is made of glass fiber wool.
5. The wire harness for an electric vehicle according to claim 1, wherein the material of the high temperature resistant layer (14) is a methyl vinyl silicone rubber.
6. The wire harness for an electric vehicle according to claim 2, wherein a fixing coil (23) is provided at an edge position of the conductive sheet (21), and an end of the wire harness body (1) is penetrated by the fixing coil (23) and connected to the conductive tube (22).
7. The wire harness for an electric vehicle according to claim 2, wherein a groove (24) extending in a circumferential direction is provided on an outer wall of the conductive tube (22), and an end portion of the wire core (11) is wound around and disposed in the groove (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135617.2U CN216133690U (en) | 2021-09-06 | 2021-09-06 | Wire harness with high temperature resistance for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122135617.2U CN216133690U (en) | 2021-09-06 | 2021-09-06 | Wire harness with high temperature resistance for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133690U true CN216133690U (en) | 2022-03-25 |
Family
ID=80772652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122135617.2U Expired - Fee Related CN216133690U (en) | 2021-09-06 | 2021-09-06 | Wire harness with high temperature resistance for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133690U (en) |
-
2021
- 2021-09-06 CN CN202122135617.2U patent/CN216133690U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220325 |