Hot melt adhesive film fixing heating wire structure

Abstract

The utility model provides a structure for fixing a heating wire by a hot melt adhesive film, which relates to the technical field of electric heating pads, mattresses, blankets and shawls, and comprises a base fabric, a heating wire and a surface fabric, the heating wire is circuitously arranged on the base fabric, a fixed hot melt adhesive film layer is covered on the heating wire, the fixed heating wire is arranged on the base fabric, and the surface fabric is arranged on the surface fabric. The surface cloth is fixed on the hot melt adhesive film layer in a covering manner, the surface cloth and the base cloth are hot-pressed to form a blanket body, the heating wire structure is fixed on the hot melt adhesive film, the heating wire is circuitously arranged on the base cloth, the hot melt adhesive film layer is fixed on the heating wire in a covering manner, then the surface cloth is covered on the heating wire, and the hot melt adhesive film layer is heated and melted in a hot drying manner. After cooling, the cloth and the base cloth are fixed, so that the heating wires are effectively fixed, and the arrangement of the heating wires is not limited by a heating wire pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating pads, in particular to a hot-melt adhesive film fixed heating wire structure. Background Art

[0002] Heating pads, mattresses, blankets, and shawls are generally composed of multiple fabric layers and heating wires fixed between the fabric layers, where the heating wires are important components for converting electrical energy into thermal energy. In order to form a large and uniform heating surface on the heating pad, the heating wires are usually fixed on the fabric layers by twisting them back and forth. However, the traditional method of fixing the heating wires is very troublesome, and the heating wires are prone to looping at the bends. Therefore, certain improvements must be made to the fixing structure of the heating wires.

[0003] For example, patent 201821329056.1 includes an electric heating pad pipe body and a heating wire; a plurality of heating wire pipes are arranged on the electric heating pad pipe body, and the plurality of heating wire pipes are arranged at equal intervals; the length of each heating wire pipe is equal, and a pipe opening is formed at both ends of each heating wire pipe; a spunlace non-woven fabric strip is sewn at the pipe openings at both ends of the heating wire pipe on the electric heating pad pipe body; the heating wire and each heating wire pipe are sequentially interlaced, and the heating wire forms a U-shaped bend, and the U-shaped bend is located on the spunlace non-woven fabric strip, and a non-woven fabric strip with glue is provided on the U-shaped bend of the heating wire to cover and paste the U-shaped bend of the heating wire. The utility model adopts a non-woven fabric strip with glue to cooperate with the spunlace non-woven fabric strip to paste and fix the U-shaped bend of the heating wire, which ensures the safety of the use of the heating wire and improves the efficiency of fixing the heating wire.

[0004] The fixing of the above-mentioned heating wire requires the heating wire to shuttle through the heating wire pipe and cover and fix the U-shaped bend with a non-woven fabric strip with adhesive. It is troublesome to shuttle for a longer heating wire, and the layout of the heating wire is limited by the heating wire pipe. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a hot melt adhesive film fixing heating wire structure, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hot melt adhesive film fixed heating wire structure, including a base fabric, a heating wire, and a surface fabric: the heating wire is arranged on the base fabric in a circuitous manner, and a fixed hot melt adhesive film layer is covered on the heating wire so that the fixed heating wire is on the base fabric, and the surface fabric is covered and fixed on the hot melt adhesive film layer, and the surface fabric and the base fabric are hot-pressed to form a blanket body.

[0009] Preferably, the hot melt adhesive film layer is a whole piece, which is placed on the heating wires arranged on the base fabric and completely covers the heating wires.

[0010] Preferably, the hot melt adhesive film layer is composed of a plurality of hot melt adhesive film strips, and the plurality of hot melt adhesive film strips are arranged on the heating line at intervals.

[0011] Preferably, a plurality of the hot melt adhesive film strips are arranged at intervals in the same direction.

[0012] Preferably, the plurality of hot melt adhesive film strips include a combination of a transverse spacing arrangement and a longitudinal spacing arrangement.

[0013] Preferably, a plurality of mutually independent heating wire pipes for passing the heating wire are sewn between the surface cloth and the base cloth, the heating wire is passed through the heating wire pipes, both ends of each heating wire pipe are formed with pipe openings for convenient passing and installation of the heating wire, the heating wire is passed through each heating wire pipe in sequence, the heating wire forms a U-shaped bend at the pipe openings of two adjacent heating wire pipes, and the hot-melt adhesive film strip is arranged on the U-shaped bend.

[0014] Preferably, the surface fabric and the base fabric are connected and fixed by multiple sets of sewing threads.

[0015] (III) Beneficial effects

[0016] The utility model provides a hot melt adhesive film fixing heating wire structure. It has the following beneficial effects:

[0017] The hot melt adhesive film fixes the heating wire structure, the heating wire is arranged on the base fabric in a circuitous manner, the hot melt adhesive film layer is covered on the heating wire, and then the surface fabric is covered thereon, the hot melt adhesive film layer is melted by heat through heat baking, and the rear fabric is fixed to the base fabric after cooling, thereby achieving effective fixation of the heating wire, and the arrangement of the heating wire is not limited by the limitation of the heating wire pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a first embodiment of a hot melt adhesive heating wire fixing structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the second embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of Embodiment 3 of the present utility model;

[0021] Figure 4 This is a schematic diagram of the fourth embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of Embodiment 5 of the present utility model.

[0023] In the figure: 1. base fabric; 2. heating wire; 3. surface fabric; 4. heating wire pipeline; 5. U-shaped bend; 6. hot melt adhesive film layer. DETAILED DESCRIPTION

[0024] The utility model provides a hot melt adhesive heating wire fixing structure, such as Figure 1-5 As shown, it includes a bottom 1, a heating wire 2, and a surface cloth 3: the heating wire 2 is arranged on the bottom 1 in a circuitous manner, and a hot melt adhesive layer 6 is covered and fixed on the heating wire 2 to fix the heating wire 2 on the bottom 1, and the surface cloth 3 is covered and fixed on the hot melt adhesive layer 6, and the surface cloth 3 is connected to the bottom 1 to form a blanket body.

[0025] like Figure 1 As shown, the hot melt adhesive layer 6 described in the first embodiment is a whole piece, which is placed on the heating wire 2 arranged on the bottom 1 and completely covers the heating wire 2. Since the hot melt adhesive layer 6 is a whole piece, the arrangement of the heating wire 2 is not restricted and the pattern is arranged as needed.

[0026] like Figure 2 and 3 As shown, the hot melt adhesive layer 6 is composed of a plurality of hot melt adhesive strips, and the plurality of hot melt adhesive strips are arranged on the heating wire 2 at intervals; Figure 2 Horizontal spacing setting and embodiment three Figure 3 The vertical spacing setting.

[0027] like Figure 4 As shown in the fourth embodiment, a plurality of the hot melt adhesive strips include a combination of a transverse spacing arrangement and a longitudinal spacing arrangement.

[0028] like Figure 5 As shown, in embodiment five, a plurality of mutually independent heating wire pipes 4 for the heating wire 2 to pass through are sewn between the surface cloth 3 and the bottom 1, the heating wire 2 is passed through the heating wire pipes 4, and both ends of each heating wire pipe 4 are formed with pipe openings for convenient passing and installation of the heating wire 2, the heating wire 2 is passed through each heating wire pipe 4 in sequence, and the heating wire 2 is formed with a U-shaped bend 5 at the pipe openings of two adjacent heating wire pipes 4, and the hot melt adhesive strip is arranged on the U-shaped bend 5.

[0029] The surface cloth 3 and the bottom 1 are connected and fixed by multiple sets of sewing threads.

[0030] Working principle: The implementation steps of the hot melt adhesive heating wire 2 fixing structure are as follows:

[0031] The first step is to lay out the heating wire 2 on the bottom 1. In the first embodiment, the heating wire 2 is laid out without restriction and the shape is laid out as required. In the second to fifth embodiments, the heating wire 2 is laid out in a serpentine manner.

[0032] The second step is to lay out the hot melt adhesive layer 6. In the first embodiment, the hot melt adhesive layer 6 is arranged in a whole block, and in the second embodiment, it is arranged in strips;

[0033] The third step is to cover the surface cloth 3, heat the surface cloth 3, melt the hot melt adhesive layer 6 to generate viscosity, bond the surface cloth 3 and the bottom 1, and fix the heating wire 2.

[0034] The fourth step is to sew and fix the edge of the surface cloth 3 and the bottom 1 to form a blanket body.

[0035] To sum up, the hot melt adhesive heating wire 2 has a fixed structure, the heating wire 2 is arranged on the bottom 1 in a circuitous manner, the heating wire 2 is covered with a fixed hot melt adhesive layer 6, and then covered with a surface cloth 3, and the hot melt adhesive layer 6 is melted by heat baking, and the rear cloth 3 is fixed to the bottom 1 after cooling, thereby effectively fixing the heating wire 2, and the arrangement of the heating wire 2 is not limited by the heating wire pipe 4.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot melt adhesive film fixed heating wire structure, comprising a base fabric (1), a heating wire (2), and a surface fabric (3), characterized in that: The heating wire (2) is arranged on the base fabric (1) in a circuitous manner, a hot melt adhesive film layer (6) is covered and fixed on the heating wire (2), so that the heating wire (2) is fixed on the base fabric (1), the surface fabric (3) is covered and fixed on the hot melt adhesive film layer (6), and the surface fabric (3) and the base fabric (1) are connected by hot pressing to form a blanket body.

2. The hot melt adhesive film fixing heating wire structure according to claim 1, characterized in that: The hot melt adhesive film layer (6) is a whole piece, which is placed on the heating wire (2) arranged on the base fabric (1) and completely covers the heating wire (2).

3. The hot melt adhesive film fixed heating wire structure according to claim 1, characterized in that: The hot melt adhesive film layer (6) is composed of a plurality of hot melt adhesive film strips, and the plurality of hot melt adhesive film strips are arranged on the heating wire (2) at intervals.

4. The hot melt adhesive film fixing heating wire structure according to claim 3, characterized in that: A plurality of hot melt adhesive film strips are arranged at intervals in the same direction.

5. The hot melt adhesive film fixed heating wire structure according to claim 3, characterized in that: The plurality of hot melt adhesive film strips include a combination of a transverse spacing arrangement and a longitudinal spacing arrangement.

6. The hot melt adhesive film fixing heating wire structure according to claim 3, characterized in that: A plurality of mutually independent heating wire pipes (4) through which the heating wire (2) is passed are sewn between the surface fabric (3) and the base fabric (1); the heating wire (2) is passed through the heating wire pipes (4); both ends of each heating wire pipe (4) are formed with pipe openings for convenient passing and installation of the heating wire (2); the heating wire (2) and each heating wire pipe (4) are passed through in sequence; the heating wire (2) forms a U-shaped bend (5) at the pipe openings of two adjacent heating wire pipes (4); and the hot melt adhesive film strip is arranged on the U-shaped bend (5).

7. The hot melt adhesive film fixed heating wire structure according to claim 1, characterized in that: The surface fabric (3) and the base fabric (1) are connected and fixed by multiple sets of sewing threads.

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