JPH0342094Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a snow melting hot pine suitable for sidewalks, entrances, etc.

[Prior Art] Conventionally, this type of device is as follows.

B. This type of electric heating mat is conventionally made by kneading a conductive material into a rubber compound, forming a sheet of the rubber compound, and embedding electrode plates at both ends to form a heating element. (Hereinafter referred to as heating element A) B. Also, a sheet heating element is formed by impregnating and adhering a conductive material to a coarsely woven cotton canvas fabric, and arranging several electrode plates designed as necessary to form a heating element. My body was warm. (Hereinafter referred to as heating element B) The heating elements A and B are also manufactured by being covered and sealed with a rubber sheet.

[Problems to be solved by the invention] The conventional techniques described above had the following problems.

In other words, in the heating element A, the arrangement, directionality, and dispersion of the molecules of the conductive material in the rubber compound sheet are uneven, so not only can the designed performance not be expected, but the heat distribution is uneven. Invite sex.

On the other hand, in the heating element B, the conductive material impregnated and bonded to the cotton fibers is adsorbed to the covering rubber during vulcanization and adhesion, and it is also difficult to expect the performance as designed.

The heating elements A and B described above have non-uniform heat distribution and cannot provide the performance as designed, leading to a large loss of electric power and a large expense burden on the user side.

The present application has been made in view of the problems of the prior art, and its purpose is to provide a solution that can solve the above-mentioned problems.

[Means for Solving the Problem] In order to achieve the above object, the present invention is as follows.

In other words, the present invention involves impregnating polyester spun yarn with a conductive material, drying it, and then
A sheet heating element 2 serving as a heating source is made by weaving fixed filamentous heating elements 2A with polyester threads 2B at equal intervals, and joining both ends to + and - polar wires 2C and 2D; It consists of a mat part 3 configured in the shape of a rubber sheet which covers and seals the thread-like heating element 2A from above and below in a state where it is sandwiched and sealed, and an inclined surface 3C is formed around the upper surface of the mat part 3, and the above-mentioned An uneven surface 3D is carved on the upper surface of the mat part 3,
This is a hot mat in which long semi-cylindrical grooves 3E are carved at equal intervals on the lower surface of the mat portion 3.

[Effect] Explain along with the effects.

[Example of idea] Examples will be described with reference to the drawings.

1 is the hotpot of the main proposal.

2 is a planar heating element that serves as a heat generation source, and thread-shaped heating elements 2A made by impregnating, drying, and fixing a conductive material to polyester spun yarn are arranged at regular intervals (for example, at a pitch of 10 m/m).
It is made by weaving it with polyester thread 2B and joining its ends to + and - polar lines 2C and 2D.

2C1 and 2D1 are lead wires connected to these polar wires.

In addition, as this planar heating element 2, (Toray Co., Ltd., Tretherm~ trademark) is used.

Reference numeral 3 denotes a mat portion formed in the shape of a rubber sheet, which covers and seals the thread-like heating element 2A while sandwiching it from above and below.

In this case, the lead wires 2C1 and 2D1 are naturally drawn out from the mat portion.

The mat portion 3 is connected to the filamentous heating element 2A.
It consists of an upper surface rubber 3A and a lower surface rubber 3B, with the upper surface rubber 3A made of a rubber compound with good heat retention properties, and the bottom surface rubber 3B made of a rubber compound with good heat insulation properties.

3C is an inclined surface formed around the upper surface of the mat portion 3.

This slope 3C is designed to prevent the feet of pedestrians from getting caught on the outer periphery of the pine, and to make it easier for the water melted on the pine to drain to the outside. be.

3D is an uneven surface that is formed to prevent slips and to make it easier to remove ice and snow that adheres to the back side of footwear.This uneven surface is designed to be aesthetically pleasing, creating a sculptural composition with natural beauty, and making it colorful. It is configured.

Reference numeral 3E denotes long semi-cylindrical grooves carved at equal intervals on the back surface of the mat portion 3, and the space within the grooves 3E functions as an air pocket to prevent heat transfer to the ground.

In this case, the mat section 3 is designed to be made of a compound with excellent physical properties, electrical insulation, weather resistance, heat resistance, permeation resistance, etc., and the shape and processing surface are designed to have heat dissipation properties depending on the purpose of use. Special treatments such as heat insulation, non-slip properties, drainage properties, stiffness, color properties, mirror roughness, etc. have been applied to create a flexible, wide-area sheet that can be used to easily and conveniently use electrical energy anywhere.
This makes it possible to use it comprehensively and effectively as a heating element.

The filament itself of the filamentous heating element 2A has high tensile strength and is flexible and stretchable, so it has excellent secondary processability over a wide range, and is ready for commercialization.
Once this happens, it functions as a tension member and can dramatically increase the breaking strength of the product.

Because the filamentous heating element 2A is strongly bonded to the polyester yarn 2B single filament, there is no detachment or transfer of the conductive material during secondary processing such as covering with a rubber compound sheet, sealing, and vulcanization adhesion, resulting in stable operation. A highly accurate product can be obtained.

The above-mentioned planar heating element 2 is designed and woven in such a way that the rubber compound flows through the weave and becomes integrated from the weave when adhering to the rubber compound, so it is treated with a special primer etc. for adhesion. Complete coverage, sealing, and adhesion are possible without the need for coating, making it extremely economical.

Since the coating polymerization of the filamentous heating element 2A is strong and stable, it is possible to input high voltage power compared to conventional planar heating elements.

[Effects of the invention] Since the present invention is configured as described above, it produces the following effects.

The characteristics of the rubber compound that covers the hot mat of the present invention are as described above, but the characteristics of the front and back surfaces are designed depending on the purpose of use.

B. When used as a snow melting mat for sidewalks.

The rubber compound used for the top rubber has good heat retention properties, making it highly effective in melting snow that continues to fall.

In addition, since the shape has an uneven surface 3D carved on the surface, it is easy to prevent slipping when walking on the hot mat and to easily remove ice and snow adhering to the back side of the footwear.

Furthermore, we took aesthetics into consideration and created a colorful sculptural uneven surface with natural beauty, allowing pedestrians to walk safely and enjoyably.

In addition, a rubber compound with excellent heat insulation properties is used for the bottom rubber, and the grooves 3E, which are semi-cylindrical in shape, are carved at equal intervals.
The space of this groove 3E acts as an air pocket and prevents heat transfer to the ground.

Further, this semi-cylindrical groove 3E is distorted by the weight of the pedestrian and has cushioning properties, and has a soft walking sensitivity.

When a diagonal force is applied, a stress is created that causes the corner of the semi-cylinder to catch on the landing surface.
The position of the mat does not shift.

(b) When used as a snow melting mat for driveways and parking lots.

First, the above-mentioned hot mat has a high load-resistant design structure, and the dimensions are 2000m/m in width and 5000m/m in length.
It is a good idea to lay them in multiples of the length and breadth as necessary, and drive stakes in the corners to prevent them from shifting.

C Although the above explanation was given as a sheet for melting snow, it can also be used as a sheet for various industrial heating and insulation purposes.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view, Fig. 2 is an enlarged cross-sectional view of the main part taken along the line A-A, Fig. 3 is a perspective view of the planar heating element, and Fig. 4 is an enlarged cross-sectional view of the main part taken along the line B-B. It is. 1...Hot mat, 2... Planar heating element, 3... Mat part.

Claims (1)

[Claims for Utility Model Registration] 1. A filamentous heating element 2A made by impregnating, drying, and fixing a conductive material into a spun polyester yarn is woven with a polyester yarn 2B at equal intervals, and both ends thereof are connected to + and - polar lines 2C, A planar heating element 2 that serves as a heat generation source is made by joining 2D, and a mat section 3 configured in a rubber sheet shape that covers and seals the filamentous heating element 2A while sandwiching it from above and below. An inclined surface 3C is formed around the upper surface of the mat section 3, an uneven surface 3D is carved on the upper surface of the mat section 3, and an uneven surface 3D is carved at equal intervals on the lower surface of the mat section 3. A hot mat characterized by having a long semi-cylindrical groove 3E carved therein. 2. The hot mat according to claim 1, wherein the filamentous heating elements 2A are equally spaced at a pitch of about 10 m/m. 3 The mat portion 3 is composed of an upper rubber 3A and a lower rubber 3B around the filamentous heating element 2A,
3. The hot mat according to claim 1, wherein said upper surface rubber 3A is made of a rubber compound with good heat retention properties, and said bottom surface rubber 3B is made of a rubber compound with good heat insulation properties.