High-temperature-resistant motor wire

Abstract

The utility model discloses a high-temperature-resistant motor wire which comprises a plurality of wire bodies arranged at intervals and a high-temperature-resistant layer wrapping the wire bodies. The wire body comprises three wire cores which are mutually twisted and an insulating layer, and the periphery of the three wire cores is coated with the insulating layer; the section of the high-temperature-resistant layer is in a long circle shape, meanwhile, installation hole channels allowing the wire body to penetrate through are evenly formed in the high-temperature-resistant layer, and meanwhile the inner diameter of the installation hole channels is larger than the outer diameter of the wire body. A plurality of blocking rings are evenly arranged in the mounting hole channel at intervals, and the blocking rings and the high-temperature-resistant layer are integrally formed. A heat insulation cavity is formed between every two adjacent blocking rings. FEP is adopted as the high-temperature-resistant layer, the FEP is not ignited, flame diffusion can be prevented, the high-temperature-resistant capacity is high, and meanwhile the heat insulation cavities are formed between the adjacent blocking rings, so that heat outside the high-temperature-resistant layer is prevented from influencing the wire body.

Description

Technical Field

[0001] The utility model relates to the field of cables, specifically to high-temperature resistant motor wires. Background Art

[0002] A wire harness is a group of metal wires and cables tied together to carry the connection of signals and power between devices. It is a wiring component connecting various electrical devices in an automobile circuit, consisting of an insulating sheath, a wiring terminal, a wire, and insulating wrapping materials, etc. And a motor wire harness is a wire harness used in a motor circuit. In order to prevent the wire harness from overheating, generally high-temperature resistant materials are needed to fix the wire body.

[0003] For example, the patent with the authorization announcement number CN220065217U discloses a high-temperature resistant motor wire harness, which relates to the technical field of motor wire harnesses. This high-temperature resistant motor wire harness includes a wire body and a wrapping plate body. A plurality of through holes are penetrated between the left and right sides of the wrapping plate body, and the wire body passes through the through holes. Heat dissipation holes are provided on the top and side surfaces of the wrapping plate body, and a protection plate is in contact with the front and rear sides of the wrapping plate body respectively.

[0004] When a fire occurs due to the overheating of the wire body in the above patent, the fire will burn the pull rope, and the baffle and the shielding plate will move towards each other and close the heat dissipation holes and the ventilation channels to isolate the oxygen in the wrapping plate body, thereby preventing the wire body from continuing to burn and also preventing the spread of the fire; however, the disadvantage of the above patent is that the above patent uses a rigid wrapping plate body to protect the wire body, which limits the applicable situation of the wire harness and can only be applicable to the straight connection method.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a high-temperature resistant motor wire to solve the problems put forward in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] The high-temperature resistant motor wire includes a plurality of wire bodies arranged at intervals, and further includes a high-temperature resistant layer covering the wire bodies; the wire body includes three mutually twisted wire cores and an insulating layer, and the insulating layer covers the periphery of the three wire cores; the cross-section of the high-temperature resistant layer is oblong, and at the same time, installation holes for the wire bodies to pass through are evenly opened in the high-temperature resistant layer, and the inner diameter of the installation holes is larger than the outer diameter of the wire bodies; a plurality of barrier rings are evenly spaced inside the installation holes, and the barrier rings are integrally formed with the high-temperature resistant layer; heat insulation cavities are formed between adjacent barrier rings; a shielding net is further arranged inside the high-temperature resistant layer, and the shielding net is woven by tinned copper wires.

[0009] Further, the wire core is made of oxygen-free copper core material.

[0010] Further, the insulating layer is a polyethylene layer.

[0011] Further, the high-temperature resistant layer is made of FEP plastic material.

[0012] Further, the width of the barrier ring gradually decreases from the outer circle to the inner circle.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Using FEP as the high-temperature resistant layer, this material does not ignite, can prevent the spread of fire, has strong high-temperature resistance, and at the same time, the adjacent barrier rings form a heat insulation cavity, which helps to prevent the heat outside the high-temperature resistant layer from affecting the wire body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a high-temperature resistant motor wire.

[0016] Figure 2 is a front view of a high-temperature resistant motor wire.

[0017] Figure 3 is a side view of a high-temperature resistant motor wire.

[0018] Figure 4 is a top view of a high-temperature resistant motor wire.

[0019] Figure 5 is Figure 2 a cross-sectional view taken along the line A-A in

[0020] Figure 6 is Figure 3 a cross-sectional view taken along the line B-B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0022] Please refer toFigures 1-6 , a high-temperature resistant motor wire, includes several wire bodies 1 arranged at intervals, and also includes a high-temperature resistant layer 4 covering the wire bodies 1;

[0023] The wire body 1 includes three mutually twisted wire cores 2 and an insulating layer 3. The insulating layer 3 covers the periphery of the three wire cores 2. The insulating layer 3 is a polyethylene layer, which has good insulating performance and can prevent current leakage and short circuit;

[0024] The cross-section of the high-temperature resistant layer 4 is oblong. The high-temperature resistant layer 4 is made of FEP plastic material. At the same time, an installation hole 5 for the wire body 1 to pass through is evenly opened in the high-temperature resistant layer 4. At the same time, the inner diameter of the installation hole 5 is larger than the outer diameter of the wire body 1; A number of barrier rings 6 are evenly spaced inside the installation hole 5, and the barrier rings 6 are integrally formed with the high-temperature resistant layer 4;

[0025] The space between adjacent barrier rings 6 forms a heat insulation cavity 7, which helps to prevent the heat outside the high-temperature resistant layer 4 from affecting the wire body 1;

[0026] At the same time, the width of the barrier ring 6 gradually decreases from the outer ring to the inner ring, which is also used to reduce the transfer of heat outside the high-temperature resistant layer 4 to the wire body 1 through the barrier ring 6;

[0027] FEP is copolymerized from tetrafluoroethylene and hexafluoropropylene. The FEP crystal melting point is 580°F, and the density is 2.15g / CC (grams per cubic centimeter). It is a soft plastic. This material does not ignite and can prevent the spread of fire. It has excellent weather resistance and a low coefficient of friction, and can be used from low temperature to 392°F.

[0028] The wire core 4 is made of oxygen-free copper core material. The wire core 4 made of oxygen-free copper material has excellent electrical conductivity, which is beneficial to reducing energy loss during electrical transmission.

[0029] In some implementations of this solution, a shielding net 8 is also provided inside the high-temperature resistant layer 4. The shielding net 8 is woven from tinned copper wires. The tinned copper wire woven shielding net 8 has a certain flexibility, can be bent and deformed, is beneficial to installation and wiring, and can also provide a certain degree of mechanical protection to prevent external physical damage, such as extrusion, pulling, etc., thereby extending the service life of this high-temperature resistant motor wire.

[0030] When producing the high-temperature resistant motor wire of this solution, first, the three wire cores 2 are twisted together, and at the same time, the insulating layer 3 is set on the surface of the three wire cores 2 by extrusion; at the same time, after the wire bodies 1 are evenly spaced and arranged, the shielding net 8 is woven on the surface, and finally, the wire bodies 1 and the shielding net 8 are extruded to prepare the high-temperature resistant layer 4.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. High-temperature resistant motor wire, including several wire bodies arranged at intervals, characterized in that, It also includes a high-temperature resistant layer covering the wire body; the wire body includes three mutually twisted wire cores and an insulating layer, and the insulating layer is covered around the three wire cores; the cross-section of the high-temperature resistant layer is oblong, and at the same time, an installation hole for the wire body to pass through is evenly opened in the high-temperature resistant layer, and the inner diameter of the installation hole is larger than the outer diameter of the wire body; a number of barrier rings are evenly spaced inside the installation hole, and the barrier rings are integrally formed with the high-temperature resistant layer; a heat insulation cavity is formed between adjacent barrier rings; a shielding net is also arranged inside the high-temperature resistant layer, and the shielding net is woven from tinned copper wires.

2. The high-temperature resistant motor wire according to claim 1, wherein The wire core is made of oxygen-free copper core material.

3. The high-temperature resistant motor wire according to claim 1, wherein The insulating layer is a polyethylene layer.

4. The high-temperature resistant motor wire according to claim 1, characterized in that, The high-temperature resistant layer is made of FEP plastic material.

5. The high-temperature resistant motor wire according to claim 1, characterized in that, The width of the barrier ring gradually decreases from the outer ring to the inner ring.

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