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CN-224218540-U - Flexible washable electrothermal film

CN224218540UCN 224218540 UCN224218540 UCN 224218540UCN-224218540-U

Abstract

The utility model relates to a flexible water-washing-resistant electrothermal film, which belongs to the technical field of electrothermal films and comprises a conductive heating layer, wherein a heating anti-drop structure is arranged on the conductive heating layer, the heating anti-drop structure comprises insulating buffer layers fixedly arranged on the upper surface and the lower surface of the conductive heating layer, a waterproof packaging layer is fixedly arranged on the surface of one side, far away from the conductive heating layer, of the insulating buffer layer, and an anchoring anti-drop plate is fixedly arranged inside the waterproof packaging layer. This flexible washing-resistant electrothermal film through at waterproof encapsulation in situ fixed mounting has anchor anticreep board, anchor anticreep board fixed mounting has the anchor connecting rod that runs through conductive heating layer and insulating buffer layer, adopts multilayer structure and anchor connecting rod's design for connect between each layer more closely firmly, effectively prevented to appear separating the layering condition between each layer in the washing process of many times, improved electrothermal film's overall stability and durability greatly.

Inventors

  • HUANG CHANGQING
  • WANG SHIQING

Assignees

  • 湖南德弘电热材料科技有限公司

Dates

Publication Date
20260508
Application Date
20250529

Claims (8)

  1. 1. A flexible washable electrothermal film comprises a conductive heating layer (1), and is characterized in that the conductive heating layer (1) is provided with a heating anti-drop structure; The anti-drop structure generates heat includes fixed mounting in insulating buffer layer (2) of conductive heating layer (1) upper surface and lower surface, insulating buffer layer (2) are kept away from conductive heating layer (1) one side fixed surface and are installed waterproof packaging layer (3), waterproof packaging layer (3) internally mounted has anchor anticreep board (4), anchor anticreep board (4) fixed surface installs anchor connecting rod (5), conductive heating layer (1) inside is equipped with the conductive component that generates heat.
  2. 2. The flexible washable electrothermal film of claim 1, wherein the conductive heating layer (1) is thermoplastic polyurethane, the insulating buffer layer (2) is polyimide, and the waterproof packaging layer (3) is silica gel.
  3. 3. The flexible washing-resistant electrothermal film of claim 1, wherein the number of the anchoring anti-drop plates (4) is plural, and the anchoring anti-drop plates (4) are uniformly distributed in the two waterproof packaging layers (3).
  4. 4. The flexible washing-resistant electrothermal film according to claim 1, wherein the anchoring connecting rods (5) are fixedly arranged between the surfaces of the opposite sides of the two anchoring anti-drop plates (4), and the anchoring connecting rods (5) penetrate through the conductive heating layer (1) and the insulating buffer layer (2).
  5. 5. The flexible washing-resistant electrothermal film according to claim 1, wherein the heating conductive component comprises a carbon nanotube (6) and an electric heating wire (7) fixedly arranged inside the conductive heating layer (1).
  6. 6. The flexible washing-resistant electrothermal film of claim 5, wherein the carbon nanotubes (6) are multiwall carbon nanotubes, the heating wires (7) are copper-nickel alloy heating wires, and the heating wires (7) are spiral.
  7. 7. The flexible washable electrothermal film of claim 6, wherein the conductive heating layer (1) is fixedly provided with a sleeve pipe (8), and the heating wire (7) is fixedly arranged in the sleeve pipe (8).
  8. 8. The flexible washing-resistant electrothermal film according to claim 7, wherein the sleeve pipe (8) is stainless steel wire mesh.

Description

Flexible washable electrothermal film Technical Field The utility model relates to the technical field of electrothermal films, in particular to a flexible water-resistant electrothermal film. Background The electrothermal film is a semitransparent polyester film which can generate heat after being electrified and is made from conductive special printing ink and a metal current carrying strip through processing and hot pressing between two layers of insulating polyester films. The traditional flexible electrothermal film is easy to be layered, oxidized or broken in the conducting layer after multiple times of water washing, so that heating is uneven or invalid, the electrothermal film is partially packaged by non-woven fabrics or common polymers, the waterproof performance is poor, water molecules easily permeate into the conducting layer, and the electrothermal performance is affected. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a flexible water-resistant electric heating film which has the advantage of good water-resistant property and solves the problem that the existing electric heating film is poor in heating effect after water washing. In order to achieve the aim, the utility model provides the technical scheme that the flexible water-resistant electrothermal film comprises a conductive heating layer, wherein a heating anti-drop structure is arranged on the conductive heating layer; the anti-drop structure generates heat includes fixed mounting in the insulating buffer layer of conductive heating layer upper surface and lower surface, insulating buffer layer keeps away from conductive heating layer one side fixed surface and installs waterproof encapsulation layer, waterproof encapsulation layer inside fixed mounting has the anchor anticreep board, anchor anticreep board fixed surface installs the anchor connecting rod, conductive heating layer inside is equipped with the conductive component that generates heat. Further, the conductive heating layer is thermoplastic polyurethane, the insulating buffer layer is polyimide, and the waterproof packaging layer is silica gel. Further, the number of the anchoring anti-drop plates is multiple, and the anchoring anti-drop plates are uniformly distributed inside the two waterproof packaging layers. Further, the anchor connecting rod is fixedly arranged between the surfaces of the opposite sides of the two anchor anti-falling plates, and the anchor connecting rod penetrates through the conductive heating layer and the insulating buffer layer. Further, the heating conductive component comprises a carbon nano tube and an electric heating wire which are fixedly arranged in the conductive heating layer. Further, the carbon nanotubes are multiwall carbon nanotubes, the heating wires are copper-nickel alloy heating wires, and the shape of the heating wires is spiral. Further, the inside fixed mounting of conductive heating layer has the cover net pipe, the heating wire fixed mounting is in the inside of cover net pipe. Further, the sleeve net pipe is a stainless steel wire net. Compared with the prior art, the technical scheme of the application has the following beneficial effects: 1. This flexible washing-resistant electrothermal film through at waterproof encapsulation in situ fixed mounting has anchor anticreep board, anchor anticreep board fixed mounting has the anchor connecting rod that runs through conductive heating layer and insulating buffer layer, adopts multilayer structure and anchor connecting rod's design for connect between each layer more closely firmly, effectively prevented to appear separating the layering condition between each layer in the washing process of many times, improved electrothermal film's overall stability and durability greatly. 2. The flexible washable electrothermal film is fixedly arranged in the multi-wall carbon nano tube inside the conductive heating layer and the copper-nickel alloy heating wire in a spiral shape, so that the heating efficiency is higher and the heating is more uniform. Meanwhile, the sleeve pipe of the stainless steel wire mesh is fixedly arranged in the conductive heating layer, the electric heating wire is fixedly arranged in the sleeve pipe, the sleeve pipe protects and fixes the electric heating wire, the stability and the reliability of the electric heating film are further enhanced, and the service life of the electric heating film is prolonged. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic cross-sectional view of the present utility model; fig. 3 is a schematic diagram of the structure of the mesh tube of the present utility model. In the figure, 1, a conductive heating layer, 2, an insulating buffer layer, 3, a waterproof packaging layer, 4, an anchoring anti-drop plate, 5, an anchoring connecting rod, 6, a carbon nano tube, 7, an electric heating wire, 8 and a sleeve pipe. Detail