Anti-interference three-layer heating wire

Abstract

The utility model discloses an anti -interference three -layer heating wire, from inside to outside includes terylene silk core line, first wire layer, first insulating layer, second wire layer, second insulating layer, third wire layer and third insulating layer in proper order, the first wire layer is the PTC temperature control line winding and constitutes on terylene silk core line surface, second wire layer is the big resistance heating wire winding and constitutes on first insulating layer surface, third wire layer is the small resistance heating wire winding and constitutes on second insulating layer surface, first insulating layer is NTC insulating layer, third insulating layer is PVC insulating layer, be equipped with between third wire layer and third insulating layer anti -interference layer, anti -interference layer is covered in third wire layer's surface, anti -interference layer is PE conducting layer, through adopting PE conducting layer as anti -interference layer, solves the problem of high production cost of heating wire with shielding function.

Description

Technical Field

[0001] This utility model relates to the field of heating wire technology, specifically to an anti-interference three-layer heating wire. Background Technology

[0002] Heating wires are electrical wires that generate heat by carrying electricity through built-in alloy wires, and are widely used in electric blankets, floor heating, and car heating systems. However, traditional anti-interference heating wires typically use aluminum foil or copper mesh as shielding layers, resulting in high material costs and consequently high product prices. Therefore, there is an urgent need to develop low-cost anti-interference solutions that can reduce production costs while maintaining electromagnetic shielding effectiveness. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an anti-interference three-layer heating wire, which can reduce the production cost of shielded heating wires.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An anti-interference three-layer heating wire comprises, from the inside out, a polyester core wire, a first conductor layer, a first insulation layer, a second conductor layer, a second insulation layer, a third conductor layer, and a third insulation layer. The first conductor layer is formed by winding a PTC temperature control wire around the surface of the polyester core wire. The second conductor layer is formed by winding a high-resistance heating wire around the surface of the first insulation layer. The third conductor layer is formed by winding a low-resistance heating wire around the surface of the second insulation layer. The first insulation layer is an NTC insulation layer, and the third insulation layer is a PVC insulation layer. An anti-interference layer is provided between the third conductor layer and the third insulation layer, and the anti-interference layer covers the surface of the third conductor layer. The anti-interference layer is a PE conductive layer. By using a PE conductive layer as the anti-interference layer, the problem of high production cost of shielded heating wires is solved.

[0006] As a preferred embodiment, the thickness of the PE conductive layer is 0.20-0.51 mm.

[0007] As a preferred embodiment, the PTC temperature control wire is wound in the opposite direction to the high-resistance heating wire, while the PTC temperature control wire is wound in the same direction as the low-resistance heating wire.

[0008] As a preferred embodiment, the second insulating layer is made of PA, PP or PE material.

[0009] As a preferred embodiment, the thickness of the first insulating layer is 0.20-0.51 mm; the thickness of the second insulating layer is 0.20-0.51 mm; and the thickness of the third insulating layer is 0.30-0.76 mm.

[0010] As a preferred embodiment, the wire diameter of the first conductor layer is 0.05-0.25mm; the wire diameter of the second conductor layer is 0.05-0.25mm; and the wire diameter of the third conductor layer is 0.05-0.30mm.

[0011] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by using a low-cost PE conductive layer as an anti-interference layer, the production cost of the shielded heating wire is reduced, thereby improving efficiency.

[0012] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model.

[0014] Explanation of reference numerals in the attached diagram:

[0015] 1-Polyester core wire; 2-First conductor layer; 3-First insulation layer;

[0016] 4-Second conductor layer; 5-Second insulation layer; 6-Third conductor layer;

[0017] 7-Anti-interference layer; 8-Third insulation layer. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figure 1As shown, this utility model discloses an anti-interference three-layer heating wire, which includes, from the inside out, a polyester core wire 1, a first conductor layer 2, a first insulation layer 3, a second conductor layer 4, a second insulation layer 5, a third conductor layer 6, and a third insulation layer 8. The first conductor layer 2 is formed by winding a PTC temperature control wire around the surface of the polyester core wire 1. The second conductor layer 4 is formed by winding a high-resistance heating wire around the surface of the first insulation layer 3. The third conductor layer 6 is formed by winding a low-resistance heating wire around the surface of the second insulation layer 5. The first insulation layer 3 is an NTC insulation layer, and the third insulation layer 8 is a PVC insulation layer. An anti-interference layer 7 is provided between the third conductor layer 6 and the third insulation layer 8, and the anti-interference layer 7 covers the surface of the third conductor layer 6. The anti-interference layer 7 is a PE conductive layer. By using a PE conductive layer as the anti-interference layer 7, the problem of high production cost of shielded heating wires is solved.

[0021] The thickness of the PE conductive layer is 0.20-0.51 mm.

[0022] The PTC temperature control wire is wound in the opposite direction to the high resistance heating wire, while the PTC temperature control wire is wound in the same direction as the low resistance heating wire.

[0023] The second insulating layer 5 is made of PA, PP or PE material.

[0024] The thickness of the first insulating layer 3 is 0.20-0.51 mm; the thickness of the second insulating layer 5 is 0.20-0.51 mm; and the thickness of the third insulating layer 8 is 0.30-0.76 mm.

[0025] The wire diameter of the first conductor layer 2 is 0.05-0.25mm; the wire diameter of the second conductor layer 4 is 0.05-0.25mm; and the wire diameter of the third conductor layer 6 is 0.05-0.30mm.

[0026] In summary, this utility model reduces the production cost of shielded heating wires and improves efficiency by using a low-cost PE conductive layer as the anti-interference layer 7.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An anti-interference three-layer heating wire, characterized in that: From the inside out, it includes a polyester filament core, a first conductor layer, a first insulation layer, a second conductor layer, a second insulation layer, a third conductor layer, and a third insulation layer. The first conductor layer is formed by winding a PTC temperature control wire around the surface of the polyester filament core. The second conductor layer is formed by winding a high-resistance heating wire around the surface of the first insulation layer. The third conductor layer is formed by winding a low-resistance heating wire around the surface of the second insulation layer. The first insulation layer is an NTC insulation layer, and the third insulation layer is a PVC insulation layer. An anti-interference layer is provided between the third conductor layer and the third insulation layer, and the anti-interference layer covers the surface of the third conductor layer. The anti-interference layer is a PE conductive layer.

2. The anti-interference three-layer heating wire according to claim 1, characterized in that, The thickness of the PE conductive layer is 0.20-0.51 mm.

3. The anti-interference three-layer heating wire according to claim 1, characterized in that, The PTC temperature control wire is wound in the opposite direction to the high resistance heating wire, while the PTC temperature control wire is wound in the same direction as the low resistance heating wire.

4. The anti-interference three-layer heating wire according to claim 1, characterized in that, The second insulating layer is made of PA, PP or PE material.

5. The anti-interference three-layer heating wire according to claim 1, characterized in that, The thickness of the first insulating layer is 0.20-0.51 mm; the thickness of the second insulating layer is 0.20-0.51 mm; and the thickness of the third insulating layer is 0.30-0.76 mm.

6. The anti-interference three-layer heating wire according to claim 1, characterized in that, The wire diameter of the first conductor layer is 0.05-0.25mm; the wire diameter of the second conductor layer is 0.05-0.25mm; and the wire diameter of the third conductor layer is 0.05-0.30mm.

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