CN219534089U - New energy automobile wire harness with flame-retardant anti-aging effect - Google Patents

Abstract

The utility model relates to a new energy automobile wire harness with flame-retardant and ageing-resistant effects, and relates to the technical field of automobile wire harnesses, which comprises a wiring terminal and a wire harness body, wherein the wiring terminal is arranged at two ends of the wire harness body, the wire harness body comprises a plurality of wire cores, a filling layer, an insulating layer, a flame-retardant layer and a metal layer, the wire cores are arranged in the filling layer in parallel, the insulating layer is arranged at the outer side of the filling layer, the flame-retardant layer is arranged at the outer side of the insulating layer, and the metal layer is arranged at the outer side of the flame-retardant layer; the wire harness body further comprises a plurality of heat dissipation rings, the heat dissipation rings are arranged along the length direction of the wire harness body at intervals, one end of each heat dissipation ring is connected with the metal layer, and the other end of each heat dissipation ring is clamped inside the insulating layer. The utility model can obviously save the space occupied by cable routing and installation in the signal transmission process; the heat accumulation in the wire core can be reduced, so that the overall ageing resistance of the wire harness is improved, and meanwhile, the flame resistance of the wire harness is reduced.

Description

New energy automobile wire harness with flame-retardant anti-aging effect

Technical Field

The utility model relates to the technical field of automobile wire harnesses, in particular to a new energy automobile wire harness with flame-retardant and ageing-resistant effects.

Background

With the continuous improvement of social development and overall economic level, new energy automobiles become an indispensable part of our human life, and with the continuous progress of automobile technology and the continuous development of use demands, the internal circuits and electrical equipment are also continuously increased and advanced, so that we have higher requirements on the wire harness with the internal conduction function. Because the new energy automobile is different from the power source of the traditional automobile, the wire harness applicable to the new energy automobile is quite different from the traditional automobile wire harness in the requirement, and the biggest difference is that the new energy automobile wire harness works in a high-current and high-voltage environment, so that the wire harness is easy to heat, the wire harness is easy to age, spontaneous combustion of the wire harness can be caused when the heat is accumulated to a certain extent, and potential danger is brought to automobile driving. In addition, since the motor of the new energy automobile is generally installed at a front position and the battery is installed at a rear position of the automobile, the wire harness cannot be installed in the automobile as in the conventional automobile for safety requirements of the automobile, but is required to be wired outside the automobile, so that the wire harness is easily in a humid, collision or exposure environment, and further aging of the wire harness is aggravated.

At present, the publication day is 2021, 03 and 23, and the Chinese patent of the utility model with publication number of CN212782820U proposes a flame-retardant and anti-aging wire harness for power distribution control equipment, which comprises a wiring terminal and a connecting wire, wherein one end of the wiring terminal is connected with a plurality of connecting wires, each connecting wire comprises a core wire, a first insulating layer is arranged outside the core wire, a shielding layer is arranged outside the first insulating layer, a first reinforcing layer is arranged outside the shielding layer, a corrosion-resistant layer is arranged outside the first reinforcing layer, a flame-retardant layer is arranged outside the corrosion-resistant layer, and a wrapping layer is arranged outside the flame-retardant layer; the connecting wire outside is provided with the protective sheath, and the protective sheath includes third insulating layer, elastic layer, second ageing resistance layer, anti-crack layer and wearing layer, and the third insulating layer outside is provided with the elastic layer, and the elastic layer outside is provided with the second ageing resistance layer, and the second ageing resistance layer outside is provided with anti-crack layer, and anti-crack layer outside is provided with the wearing layer.

Aiming at the technical scheme, the inventor considers that the protective sleeve is arranged on the outer side of the connecting wire, the mode improves the flame retardant property and the ageing resistance of the wire harness, and meanwhile, the overall section size of the wire harness is obviously increased, and then the space occupied by wiring and installation of the wire harness is increased; the general structure of the design and layout of the wire harness for the new energy vehicle is compact, and the wiring and installation space of the wire harness are small, so that the wire harness in the scheme is not suitable for the field of new energy vehicles.

Disclosure of Invention

In order to improve the flame retardance and ageing resistance of the wire harness for the new energy vehicle and reduce the overall wiring and installation occupation space of the wire harness, the utility model provides the wire harness for the new energy vehicle, which has the flame retardance and ageing resistance effects.

The utility model provides a new energy automobile wire harness with flame-retardant and ageing-resistant effects, which adopts the following technical scheme:

the novel energy automobile wire harness with the flame-retardant and ageing-resistant effects comprises a wiring terminal and a wire harness body, wherein the wiring terminal is arranged at two ends of the wire harness body, the wire harness body comprises a plurality of wire cores, a filling layer, an insulating layer, a flame-retardant layer and a metal layer, the wire cores are arranged in the filling layer in parallel, the insulating layer is arranged on the outer side of the filling layer, the flame-retardant layer is arranged on the outer side of the insulating layer, and the metal layer is arranged on the outer side of the flame-retardant layer; the wire harness body further comprises a plurality of heat dissipation rings, the heat dissipation rings are arranged along the length direction of the wire harness at intervals, one end of each heat dissipation ring is connected with the metal layer, and the other end of each heat dissipation ring is clamped inside the insulating layer.

Optionally, the pencil body still includes the heat sink, the heat sink sets up between insulating layer and fire-retardant layer, the heat dissipation ring is kept away from the one end of metal level and is passed the heat sink joint inside the insulating layer.

Optionally, the wire harness body further comprises a heat insulation layer, wherein the inner side of the heat insulation layer is connected with the flame retardant layer, and the outer side of the heat insulation layer is in butt joint with the inner side of the metal layer.

Optionally, an antirust layer is arranged on the outer side of the metal layer.

Optionally, the metal layer is spirally arranged.

Optionally, the wire harness protection device further comprises protection covers, wherein the protection covers are movably arranged at two ends of the wire harness body.

Optionally, the wire harness body further includes a plurality of elastic blocks, and the elastic blocks are disposed outside the metal layer.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. by adopting the technical scheme, in the using process of the wire harness, the wire harness body is provided with a plurality of wire cores for transmitting signals and power supplies, and the filling layer can fix the relative positions among the wire cores; by arranging a plurality of wire cores in the wire harness body, various signal transmission can be realized in one wire harness, and the space occupied by cable routing and installation in the signal transmission process is obviously saved; when the wire harness works for a period of time under high current or high voltage, the wire core can generate heat, and the heat absorption layer can absorb heat generated by the wire core and then transmit the heat to the outer metal layer through the heat dissipation ring. Through setting up metal level and heat dissipation ring on the pencil body, can be with the heat conduction that the sinle silk in the use to the metal level of outside on, then distribute in the air. By the arrangement, the overall heat dissipation performance of the wire harness is improved, the accumulation of heat in the wire core is reduced, the overall ageing resistance of the wire harness is improved, the spontaneous combustion probability in the use process of the wire harness is also reduced, and the flame retardant property of the wire harness is improved; in addition, set up the metal level in the outside of pencil body, can improve wear resistance and the holistic ageing resistance of pencil in the pencil use.

2. When the surrounding environment of the wire harness is higher than the internal temperature of the wire harness body, the heat insulation layer can reduce the conduction of external heat to the internal heat of the wire harness, so that the overall heat rise of the wire harness is reduced, the ageing of the wire harness is further reduced, and the flame retardant property of the wire harness is improved.

3. When the working environment of the wire harness is moist, the rust-proof layer is arranged on the outer side of the metal layer, so that the rust probability of the metal layer can be reduced, the durability of the metal layer is improved, and the overall anti-aging effect of the wire harness is improved. In addition, the metal layers are spirally arranged, so that the torsion resistance of the metal layers is enhanced, the overall torsion resistance of the wire harness is further enhanced, and the service life of the wire harness is further prolonged; the elastic block is arranged on the outer side of the metal layer, so that a buffer effect can be achieved when the wire harness collides, impact vibration of the whole wire harness is reduced, the anti-aging effect of the wire harness is indirectly improved, and the service life of the wire harness is prolonged.

4. Through arranging the protecting covers at the two ends of the wire harness body, when the wire connecting terminal needs to be connected, the protecting covers are moved to one side far away from the wire connecting terminal, and after the wire connecting terminal is connected, the protecting covers are moved to the position close to the wire connecting terminal, so that the protecting covers completely cover the wire connecting terminal; the probability that the solid impurity and water droplet of binding post department got into can be reduced in this kind of setting to reduce the probability that the pencil short circuit, and then reduce the probability that the pencil spontaneous combustion because of the short circuit.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a B-B cross-sectional view of fig. 1.

Reference numerals illustrate: 1. a harness body; 11. a wire core; 12. a filling layer; 13. an insulating layer; 14. a heat absorbing layer; 15. a flame retardant layer; 16. a thermal insulation layer; 17. a metal layer; 171. an elastic block; 18. a rust-proof layer; 19. a heat dissipation ring; 191. a circular ring portion; 192. a square sheet part; 2. a connection terminal; 3. a protective cover; 31. and (3) a threaded hole.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a flame retardant material New energy automobile pencil of ageing resistance effect: it includes pencil body 1, binding post 2 and protecting cover 3, and binding post 2 sets up the both ends at pencil body 1, and protecting cover 3 activity sets up the both ends at pencil body 1. When the wire harness works, the wire harness is connected with other electrical equipment or cables through the wiring terminal 2, and the protecting cover 3 is moved to the position right above the wiring terminal 2, so that the wire harness can realize the transmission of signals and power sources.

Referring to fig. 1 to 3, a wire harness body 1 includes a plurality of wire cores 11, a filling layer 12, a heat absorbing layer 14, an insulating layer 13, a flame retardant layer 15, a heat insulating layer 16, a metal layer 17 and a heat dissipation ring 19, wherein the plurality of wire cores 11 are arranged in parallel in the filling layer 12, the wire cores 11 are used for transmitting signals and power, the filling layer 12 is used for fixing the relative positions between the wire cores 11, and the filling layer 12 in the utility model is polyvinyl chloride; the insulating layer 13 is wrapped on the outer side of the filling layer 12, and is integrally formed on the outer side of the filling layer 12 through extrusion, so that the insulating layer 13 can effectively reduce the electric leakage probability of the wire core 11, and the insulating layer 13 is made of crosslinked polyethylene; the heat absorption layer 14 is wrapped on the outer side of the insulating layer 13, and is integrally extruded on the outer side of the insulating layer 13, and the heat absorption layer 14 can absorb heat generated by the wire core 11; the flame-retardant layer 15 is wrapped on the outer side of the heat absorption layer 14 and is integrally formed on the outer side of the heat absorption layer 14 through extrusion, the probability of burning of wire harnesses can be effectively reduced by the flame-retardant layer 15, and the flame-retardant layer 15 is made of glass fiber materials; the heat insulation layer 16 is wrapped on the outer side of the flame retardant layer 15, and is integrally formed on the outer side of the flame retardant layer 15 through extrusion, the heat insulation layer 16 can reduce the conduction of heat of the external environment to the inside of the wire harness, and the heat insulation layer 16 is made of aerogel felt; the metal layer 17 is wrapped on the outer side of the heat insulation layer 16, the inner side of the metal layer 17 is abutted to the outer side of the heat insulation layer 16, the metal layer 17 can improve the wear resistance of the wire harness in the use process, and the metal layer 17 is made of carbon steel and is a metal threaded pipe, so that the torsion resistance of the wire harness can be improved; the rust-proof layer 18 is sprayed on the outer side of the metal layer 17, so that the probability of rust in the use process of the metal layer 17 can be reduced; a plurality of elastic blocks 171 are adhered to the outer wall of the metal layer 17, the elastic blocks 171 are uniformly distributed in the length direction and the circumferential direction of the metal layer 17, and the elastic blocks 171 can play a role in buffering when the wire harness collides, so that impact vibration of the whole wire harness is reduced, the anti-aging effect of the wire harness is indirectly improved, and the service life of the wire harness is prolonged. The heat dissipation ring 19 is provided with a plurality of, and equidistant coaxial setting along the length direction of the beam body 1, and the heat dissipation ring 19 outside is ring portion 191, and the inboard is along circumference integrated into one piece has a plurality of square sheet portions 192, and square sheet portion 192 all wears to establish in insulating layer 13, and with the outside butt of heat sink 14, ring portion 191 wears to establish in insulating layer 16, and with metal layer 17 butt. Threads are machined at two ends of the metal threaded pipe, a threaded hole 31 is formed in the protecting cover 3, and the protecting cover 3 is connected to two ends of the metal threaded pipe through threads.

The implementation principle of the new energy automobile wire harness with the flame-retardant and ageing-resistant effects is as follows:

when the wire harness needs to be connected into a circuit for working, the wire harness is connected with other electrical equipment or cables through the wiring terminal 2, the protecting cover 3 is moved to the position right above the wiring terminal 2 through threaded connection, and at the moment, the wire harness can realize signal and power transmission. Through arranging the protecting covers 3 at the two ends of the wire harness body 1, when the wire connecting terminal 2 needs to be connected, the protecting covers 3 are moved to one side far away from the wire connecting terminal 2 through threads, and when the wire connecting terminal 2 is connected, the protecting covers 3 are moved to the position close to the wire connecting terminal 2 through threads, so that the protecting covers 3 completely cover the wire connecting terminal; the probability that solid impurities and water drops enter at the wiring terminal 2 can be reduced through the arrangement, so that the probability of short circuit of the wiring harness is reduced, and the probability that the wiring harness is spontaneous combustion due to the short circuit is further reduced.

In the wire harness using process, the wire harness body 1 is provided with a plurality of wire cores 11 for transmitting signals and power, and the filling layer 12 can fix the relative positions among the wire cores 11; by arranging the plurality of wire cores 11 in the wire harness body 1, various signal transmission can be realized in one wire harness, and the space occupied by cable routing and installation in the signal transmission process is obviously saved; when the wire harness works for a period of time under high current or high voltage, the wire core 11 generates heat, and the heat absorbing layer 14 absorbs the heat generated by the wire core 11 and then transmits the heat to the outer metal layer 17 through the heat dissipation ring 19. By providing the metal layer 17 and the heat dissipation ring 19 on the wire harness body 1, heat generated during use of the wire core 11 can be conducted to the metal layer 17 on the outer side and then dissipated into the air. By the arrangement, the overall heat dissipation performance of the wire harness is improved, the accumulation of heat in the wire core 11 is reduced, the overall ageing resistance of the wire harness is improved, the spontaneous combustion probability in the use process of the wire harness is also reduced, and the flame retardant property of the wire harness is improved; in addition, the metal layer 17 is arranged on the outer side of the wire harness body 1, so that the wear resistance in the wire harness use process and the overall ageing resistance of the wire harness can be improved.

In the wire harness working process, when the surrounding environment is higher than the internal temperature of the wire harness body 1, the heat insulation layer 16 can reduce the conduction of external heat to the internal heat of the wire harness, reduce the rise of the whole heat of the wire harness, further reduce the ageing of the wire harness and improve the flame retardant property of the wire harness.

When the working environment of the wire harness is wet, the rust-proof layer 18 is arranged on the outer side of the metal layer 17, so that the probability of rust of the metal layer 17 can be reduced, the durability of the metal layer 17 is improved, and the overall anti-aging effect of the wire harness is improved. In addition, the metal layer 17 is spirally arranged, so that the torsion resistance of the metal layer 17 is enhanced, the overall torsion resistance of the wire harness is further enhanced, and the service life of the wire harness is further prolonged; the elastic block 171 is arranged on the outer side of the metal layer 17, so that a buffer effect can be achieved when the wire harness collides, impact vibration of the whole wire harness is reduced, the anti-aging effect of the wire harness is indirectly improved, and the service life of the wire harness is prolonged.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (7)

1. New energy automobile pencil with fire-retardant ageing resistance effect, its characterized in that: the wire harness comprises a wiring terminal (2) and a wire harness body (1), wherein the wiring terminal (2) is arranged at two ends of the wire harness body (1), the wire harness body (1) comprises a plurality of wire cores (11), a filling layer (12), an insulating layer (13), a flame-retardant layer (15) and a metal layer (17), the wire cores (11) are arranged in the filling layer (12) in parallel, the insulating layer (13) is arranged at the outer side of the filling layer (12), the flame-retardant layer (15) is arranged at the outer side of the insulating layer (13), and the metal layer (17) is arranged at the outer side of the flame-retardant layer (15); the wire harness body (1) further comprises a plurality of heat dissipation rings (19), the heat dissipation rings (19) are arranged at intervals along the length direction of the wire harness body (1), one end of each heat dissipation ring (19) is connected with the metal layer (17), and the other end of each heat dissipation ring is clamped inside the insulating layer (13).

2. The new energy automobile wire harness with flame retardant and anti-aging effects according to claim 1, wherein: the wire harness body (1) further comprises a heat absorption layer (14), the heat absorption layer (14) is arranged between the insulating layer (13) and the flame retardant layer (15), and one end, far away from the metal layer (17), of the heat dissipation ring (19) penetrates through the heat absorption layer (14) to be clamped inside the insulating layer (13).

3. The new energy automobile wire harness with flame retardant and anti-aging effects according to claim 1, wherein: the wire harness body (1) further comprises a heat insulation layer (16), wherein the inner side of the heat insulation layer (16) is connected with the flame retardant layer (15), and the outer side of the heat insulation layer (16) is in butt joint with the inner side of the metal layer (17).

4. The new energy automobile wire harness with flame retardant and anti-aging effects according to claim 1, wherein: and an antirust layer (18) is arranged on the outer side of the metal layer (17).

5. The new energy automobile wire harness with flame retardant and anti-aging effects according to claim 1, wherein: the metal layer (17) is spirally arranged.

6. The new energy automobile wire harness with flame retardant and anti-aging effects according to claim 1, wherein: the wire harness body (1) further comprises a plurality of elastic blocks (171), and the elastic blocks (171) are arranged on the outer side of the metal layer (17).

7. The new energy automobile wire harness with flame retardant and aging resistant effects according to any one of claims 1 to 6, characterized in that: the wire harness protective device is characterized by further comprising a protective cover (3), wherein the protective cover (3) is movably arranged at two ends of the wire harness body (1).