High-heat-resistance electromagnetic wire

Abstract

The high heat-resistant electromagnetic wire comprises a copper wire core, the outer surface of the copper wire core is sequentially sleeved with a heat-resistant layer and a protective sleeve from inside to outside in the radial direction, and the inner side wall and the outer side wall of the heat-resistant layer are each provided with a plurality of grooves distributed in the axial direction. According to the utility model, the outer surface of the copper wire core is provided with the heat-resistant layer which is made of an organic silicon material, so that the cable has good heat-resistant performance and can well isolate heat; according to the electromagnetic wire, the grooves distributed in the axial direction are formed in the inner side wall and the outer side wall of the heat-resistant layer, so that a certain gap exists in the electromagnetic wire, and when the electromagnetic wire expands due to high temperature, the gap can play a buffering role, and cracks caused by expansion of the outer layer of the electromagnetic wire are avoided; and the outer part of the copper wire core can be effectively insulated through the protective sleeve which is arranged on the outer surface of the heat-resistant layer and is made of a polytetrafluoroethylene material.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic wire, concretely is a kind of high heat-resistant electromagnetic wire. BACKGROUND

[0002] Electromagnetic wire, also known as winding wire, is insulated wire used to manufacture coils or windings in electrical products. The outer surface of electromagnetic wire is usually provided with multiple outer claddings to improve the heat resistance, insulation and other properties of electromagnetic wire.

[0003] However, the existing electromagnetic wire expands to different degrees due to heating when it is used, although the expansion degree of each component is very small, but under the bearing of multiple components, the outermost outer cladding will bear the greatest force, so that the outermost outer cladding is prone to cracks. Therefore, a high heat-resistant electromagnetic wire is proposed. SUMMARY

[0004] The utility model discloses a high heat-resistant electromagnetic wire to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high heat-resistant electromagnetic wire, including copper wire core, the outer surface of copper wire core is successively sleeved with heat-resistant layer and protective sleeve along radial direction from inside to outside, multiple recesses distributed along the axial direction are formed on the inner and outer side walls of heat-resistant layer, multiple recesses on the inner and outer side walls of heat-resistant layer are annular array distribution.

[0006] As a further preferred embodiment of the present technical solution, the protective sleeve is made of polytetrafluoroethylene material.

[0007] As a further preferred embodiment of the present technical solution, the heat-resistant layer is made of organic silicon material.

[0008] As a further preferred embodiment of the present technical solution, a first wrapping layer is arranged between the copper wire core and the heat-resistant layer, and a second wrapping layer is arranged between the heat-resistant layer and the protective sleeve.

[0009] As a further preferred embodiment of the present technical solution, multiple steel wires are arranged inside the protective sleeve.

[0010] As a further preferred embodiment of the present technical solution, the multiple steel wires are annular array distribution.

[0011] As a further preferred embodiment of the present technical solution, an insulating paint layer is arranged on the outer surface of the protective sleeve.

[0012] The utility model provides a kind of high heat-resistant electromagnetic wire, with the following beneficial effects:

[0013] The utility model discloses a copper line core outer surface is provided with the heat -resistant layer made of organic silicon material, and it has good high heat -resistant performance, can good heat insulation, the recess that is set up along the axial distribution on the inner and outer side wall of heat -resistant layer can make the inside of the electromagnetic wire exist certain gap, when the electromagnetic wire expands under high temperature, the gap can play the buffering effect, avoid the outer layer of electromagnetic wire and appear the crack because of expansion, the protective sleeve made of polytetrafluoroethylene material is set up on the outer surface of heat -resistant layer, can effectively insulate the outside of copper line core. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the schematic diagram of the whole structure of the utility model;

[0015] Fig. 2 It is the internal structure schematic diagram of the utility model;

[0016] Fig. 3 It is the structure schematic diagram of heat -resistant layer in the utility model;

[0017] Fig. 4 It is the front view of heat -resistant layer in the utility model;

[0018] In the drawing: 1, copper line core;2, insulating paint layer;3, primary wrapping layer;4, heat -resistant layer;5, secondary wrapping layer;6, protective sleeve;7, steel wire;8, recess. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0020] The utility model provides technical scheme: Figs. 1 to 4 As shown in the figure, in the embodiment, a kind of high heat -resistant electromagnetic wire, including copper line core 1, the outer surface of copper line core 1 is sequentially sleeved with heat -resistant layer 4 and protective sleeve 6 along radial direction from inside to outside, protective sleeve 6 adopts polytetrafluoroethylene material, and the dielectric constant of polytetrafluoroethylene is relatively small, can effectively insulate the outside of copper line core 1, heat -resistant layer 4 is made of organic silicon material, and organic silicon material has good high heat -resistant performance, can good heat insulation, the inner and outer side wall of heat -resistant layer 4 is all set with the recess 8 of multiple along axial distribution, and the recess 8 on the inner and outer side wall of heat -resistant layer 4 is all annular array distribution.

[0021] Among them, copper line core 1 and heat -resistant layer 4 are provided with primary wrapping layer 3, and heat -resistant layer 4 and protective sleeve 6 are provided with secondary wrapping layer 5.

[0022] The primary wrapping layer 3 and the secondary wrapping layer 5 can improve the structural strength of the electromagnetic wire, and prevent the heat -resistant layer 4 and the protective sleeve 6 from deforming randomly.

[0023] The inside of the protective sleeve 6 is provided with a plurality of steel wires 7 arranged in a ring array.

[0024] The steel wires 7 can improve the tensile resistance of the electromagnetic wire and avoid deformation of the electromagnetic wire during pulling.

[0025] The outer surface of the protective sleeve 6 is provided with an insulating paint layer 2.

[0026] The utility model provides a kind of high heat-resistant electromagnetic wire, specific working principle as follows:

[0027] The heat-resistant layer 4 made of organic silicon material arranged on the outer surface of the copper wire core 1 has good high heat resistance, can well insulate heat, and the plurality of grooves 8 distributed along the axial direction on the inner and outer side walls of the heat-resistant layer 4 can make the electromagnetic wire have certain gap, when the electromagnetic wire is expanded by high temperature, the gap can play a buffering effect, avoid the outer layer of the electromagnetic wire to appear crack due to expansion, the protective sleeve 6 made of polytetrafluoroethylene material arranged on the outer surface of the heat-resistant layer 4 can effectively insulate the outside of the copper wire core 1, the first wrapping layer 3 arranged between the copper wire core 1 and the heat-resistant layer 4, and the second wrapping layer 5 arranged between the heat-resistant layer 4 and the protective sleeve 6 can improve the structural strength of the overall structure of the electromagnetic wire, and the inside of the protective sleeve 6 is provided with a plurality of steel wires 7 to improve the tensile resistance of the electromagnetic wire and avoid deformation of the electromagnetic wire during pulling.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A highly heat-resistant electromagnetic wire comprising a copper core (1), characterized by: The outer surface of the copper wire core (1) is sequentially sleeved with a heat-resistant layer (4) and a protective sleeve (6) along the radial direction from inside to outside, the inner and outer side walls of the heat-resistant layer (4) are both provided with a plurality of grooves (8) distributed along the axial direction, and the plurality of grooves (8) on the inner and outer side walls of the heat-resistant layer (4) are both arranged in a ring array.

2. The high heat-resistant electromagnetic wire according to claim 1, characterized by: The protective sleeve (6) is made of polytetrafluoroethylene material.

3. The high heat-resistant electromagnetic wire according to claim 1, characterized by: The heat-resistant layer (4) is made of organic silicon material.

4. The high heat-resistant electromagnetic wire according to claim 1, characterized by: A first wrapping layer (3) is arranged between the copper wire core (1) and the heat-resistant layer (4), and a second wrapping layer (5) is arranged between the heat-resistant layer (4) and the protective sleeve (6).

5. The high heat-resistant electromagnetic wire according to claim 1, wherein: A plurality of steel wires (7) are arranged in the protective sleeve (6).

6. The high heat-resistant electromagnetic wire according to claim 5, wherein: The plurality of steel wires (7) are arranged in a ring array.

7. The high heat-resistant electromagnetic wire according to claim 1, wherein: An insulating paint layer (2) is arranged on the outer surface of the protective sleeve (6).

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