CN211294722U - Automobile high-voltage wire harness easy to radiate - Google Patents

Abstract

The utility model discloses an automobile high-voltage wire harness easy to radiate, which comprises a wire harness body and connectors at two ends of the wire harness body; the wire harness body comprises a wire core, an inner shielding layer, an insulating layer, an outer shielding layer and a sheath from inside to outside, wherein the inner shielding layer and the outer shielding layer are made of heat-conducting graphite flakes, and the insulating layer is made of an insulating silica gel material; the outer wall of the sheath is paved with radiating fins; the side wall of the sheath is provided with a plurality of pairs of outer wings along the axial length direction, and each pair of outer wings is symmetrical relative to the central line of the wire harness body; the outer wing comprises a wing plate fixedly connected with the side wall of the sheath and a channel arranged inside the wing plate along the length direction of the wing plate, and granular solid-liquid phase change materials are filled in the channel. The utility model discloses wrap up outside the sinle silk and have good insulation shielding nature concurrently and the insulation shielding composite bed of even high heat conductivity, set up the heat dissipation wing that increases the surface area and then give off with higher speed the heat, absorb thermal outer wing fast simultaneously on the sheath, and then make the radiating efficiency of high-pressure pencil improve greatly.

Description

Automobile high-voltage wire harness easy to radiate

Technical Field

The utility model belongs to the technical field of the pencil, concretely relates to car high pressure pencil of easy heat dissipation.

Background

The main function of car high voltage wire harness is at voltage and required installation environment safe transfer current down, and it is used for directly or indirectly connecting high voltage circuit, and in daily use, car high voltage wire harness is fixed in the car, and it can produce a large amount of heats, if can't in time dispel the heat and cause instrument damage, circuit short circuit easily, arouse dangerous accident even. Therefore, a heat dissipation structure is required to be arranged on the automobile high-voltage wire harness.

SUMMERY OF THE UTILITY MODEL

Not enough and a difficult problem to among the prior art, the utility model aims at providing an easy radiating car high pressure pencil.

The utility model discloses a following technical scheme realizes:

an automobile high-voltage wire harness easy to dissipate heat comprises a wire harness body and connectors at two ends of the wire harness body; the wire harness body comprises a wire core, an inner shielding layer, an insulating layer, an outer shielding layer and a sheath from inside to outside, wherein the inner shielding layer and the outer shielding layer are made of heat-conducting graphite flakes, and the insulating layer is made of an insulating silica gel material; the outer wall of the sheath is paved with radiating fins; the side wall of the sheath is provided with a plurality of pairs of outer wings along the axial length direction, and each pair of outer wings is symmetrical relative to the central line of the wire harness body; the outer wing comprises a wing plate fixedly connected with the side wall of the sheath and a channel arranged inside the wing plate along the length direction of the wing plate, and granular solid-liquid phase change materials are filled in the channel.

Further, a sealing cover is arranged at the opening of the channel.

Further, the sheath and the wing plate are of an integrated structure.

Further, the channel is of a lying elliptic cylindrical structure.

Further, the thickness of the inner shielding layer is larger than that of the outer shielding layer.

Compared with the prior art, the utility model discloses beneficial effect includes:

(1) the utility model discloses wrap up outside the sinle silk and have good insulation shielding nature concurrently and the insulation shielding composite bed of even high heat conductivity, set up the heat dissipation wing that increases the surface area and then give off with higher speed the heat, absorb thermal outer wing fast simultaneously on the sheath, and then make the radiating efficiency of high-pressure pencil improve greatly.

(2) The utility model discloses an insulation shielding composite bed adopts inside and outside heat conduction graphite flake to wrap up insulating silica gel inside and outside wall, and heat conduction graphite flake can level and smooth attached on any plane and crooked surface for the three combines inseparabler.

(3) The utility model discloses an inside and outside shielding layer heat conduction graphite flake has ultrahigh heat conductivility (coefficient of heat conductivity is 150 supplyes 1500W/m-K), electromagnetic shield efficiency, and can carry out heat-conduction and then realize even heat dissipation in horizontal direction and vertical direction, and it has great volume resistivity and resistant electric breakdown nature, has good heat conductivity simultaneously.

(4) The utility model discloses a combination of outer wing and sheath is constituteed and is made this part form similar flat tubular construction for it is better to inside protection effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along a-a of fig. 1.

Illustration of the drawings: 1-a wiring harness body, 101-a sheath, 102-an outer shielding layer, 103-an insulating layer, 104-an inner shielding layer, 105-a wire core, 2-a heat dissipation fin, 3-an outer wing, 301-a wing plate, 302-a sealing cover and 303-a channel.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, integrally connected; can be mechanical connection and electrical connection; may be directly connected, indirectly connected through intervening agents, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood to be specific to those skilled in the art.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, an automobile high-voltage wire harness easy to dissipate heat includes a wire harness body 1 and connectors at two ends thereof, and the crimping of the wire harness body 1 and the connectors is combined into a conventional structure of the high-voltage wire harness, which is not described herein again.

The wire harness body 1 includes, from inside to outside, a wire core 105, an inner shield layer 104, an insulating layer 103, an outer shield layer 102, and a sheath 101. In the specific implementation, in the high-voltage wire harness use process, the wire core 105 is a conductor for current transmission, a large amount of heat can be generated, the heat needs to be uniformly and rapidly dissipated, otherwise, the heat is easy to accumulate to generate high temperature, and then the conductor is damaged. The inner shielding layer 104 and the outer shielding layer 102 are made of heat conducting graphite sheets, and the heat conducting graphite sheets have ultrahigh heat conducting performance (the heat conducting coefficient is 150-1500W/m-K) and electromagnetic shielding efficiency, and can conduct heat in the horizontal direction and the vertical direction so as to realize uniform heat dissipation; the insulating layer 103 is made of an insulating silicone material, and has high volume resistivity and electric breakdown resistance, and excellent thermal conductivity. Therefore, the inner shielding layer 104, the insulating layer 103 and the outer shielding layer 102 form an insulating and shielding composite layer with good insulating and shielding properties and uniform high thermal conductivity, which is equivalent to wrapping the inner and outer walls of the insulating silica gel by the inner and outer heat-conducting graphite sheets, and the heat-conducting graphite sheets can be smoothly attached to any plane and curved surface, so that the three layers are combined more tightly.

The sheath 101 is a protection layer for the wire harness, which prevents the wire harness from being damaged by the outside, such as vibration, corrosion, etc., and after effective heat transfer through the inner shield layer 104, the insulating layer 103 and the outer shield layer 102, the heat is uniformly transferred into the sheath 101, and in order to increase the heat dissipation efficiency, the heat dissipation fins 2 are laid on the outer wall of the sheath 101 to increase the surface area, thereby accelerating the heat dissipation.

The lateral wall of sheath 101 is equipped with a plurality of pairs of outer wing 3 along its axial length direction, and every pair of outer wing 3 is symmetrical for pencil body 1 central line relatively, and outer wing 3 makes this part form similar flat tube structure with the combination constitution of sheath 101 for it is better to inside protection effect. In order to improve the heat dissipation efficiency, the outer wing 3 comprises a wing plate 301 fixedly connected with the side wall of the sheath 101 and a channel 303 arranged inside the wing plate 301 along the length direction of the wing plate, granular solid-liquid phase change materials are filled in the channel 303, the phase change materials are used for absorbing heat, so that the heat is absorbed quickly, a sealing cover 302 is arranged at an opening of the channel 303, in the specific implementation, phase change particles are not completely filled in the channel 303, and the sealing cover 302 is used for sealing after blocking the opening to enable the sealing cover to be in an integrated structure with the outer wall of the channel 303. The phase-change material adopts solid-liquid phase-change substances allowed to be used in the field, and the phase-change temperature is 30-40 ℃, which is not described in detail.

The sheath 101 and the wing plate 301 are of an integrated structure, so that on one hand, the processing is convenient, and on the other hand, the sheath 101 and the wing plate 301 are more stable.

The channel 303 is of a lying elliptic cylindrical structure, so that the solid-liquid phase change material is laid more uniformly.

Because the inner shield layer 104 is closer to the core 105, the inner shield layer 104 is thicker than the outer shield layer 102, requiring more thermal conduction to it.

The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. An automobile high-voltage wire harness easy to dissipate heat comprises a wire harness body and connectors at two ends of the wire harness body; the method is characterized in that: the wire harness body comprises a wire core, an inner shielding layer, an insulating layer, an outer shielding layer and a sheath from inside to outside, wherein the inner shielding layer and the outer shielding layer are made of heat-conducting graphite sheets, and the insulating layer is made of an insulating silica gel material; heat dissipation fins are laid on the outer wall of the sheath; the side wall of the sheath is provided with a plurality of pairs of outer wings along the axial length direction, and each pair of outer wings is symmetrical relative to the central line of the wire harness body; the outer wing comprises a wing plate fixedly connected with the side wall of the sheath and a channel arranged inside the wing plate along the length direction of the wing plate, and granular solid-liquid phase change materials are filled in the channel.

2. The automotive high-voltage wire harness easy to dissipate heat according to claim 1, characterized in that: and a sealing cover is arranged at the opening of the channel.

3. The automotive high-voltage wire harness easy to dissipate heat according to claim 1, characterized in that: the sheath and the wing plate are of an integrated structure.

4. The automotive high-voltage wire harness easy to dissipate heat according to claim 1, characterized in that: the channel is of a horizontal elliptic cylindrical structure.

5. The automotive high-voltage wire harness easy to dissipate heat according to claim 1, characterized in that: the thickness of the inner shielding layer is larger than that of the outer shielding layer.

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