JPH0511387U - Sheet for sheet heating element and sheet heating element - Google Patents

Abstract

(57) [Abstract] [Purpose] A sheet for a sheet heating element that stabilizes the resistance value of a conductive substance having a self-temperature control function at any given temperature and the self-temperature control function, and a sheet using the sheet. A planar heating element having a stable self-temperature control function is provided. [Structure] A sheet (1) for a sheet heating element, which is formed by laminating a polyester nonwoven fabric (4) on one side of a polyester film (3) and a polypropylene film (2) on the other side, and this sheet for a sheet heating element. (1) A planar heating element having a structure in which an electrode (5) and a conductive substance (6) are arranged between two nonwoven fabric sides.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  INDUSTRIAL APPLICABILITY The present invention is applicable to floor heating, etc. The present invention relates to a sheet for sheet heating element, which is a non-conductive covering sheet.

[0002]

[Prior art]

  Conventionally, an organic compound that can be in a molten state or a solid state due to a temperature change , Two sheets of electrically conductive material consisting of carbon powder with self-temperature control It is used as a sheet heating element by being sandwiched by the non-conductive cover sheet of.

[0003]

[Problems to be solved by the device]

  In these sheet heating elements, the non-conductive covering sheet used has its insulating property. Polyester is used as the material to emphasize it, and various commercial standard products are generally used. Is also sold.

[0004]   However, the electrically conductive substance, which is a heating element and has a self-temperature regulating effect, is water-soluble. Because it has an organic compound that shows When Rum is used as an exterior covering sheet, the organic compound absorbs water, The resistance value of the electrically conductive substance having the self-temperature regulating effect is lowered at any given temperature. It had a great adverse effect on the temperature regulation and self-temperature control function.

[0005]   The present invention solves the above-mentioned drawbacks and allows the use of any conductive material having a self-temperature control function. The surface condition that stabilizes the resistance value and the self-temperature control function at various temperatures. Sheet for heating element, and sheet heating element using this sheet with stable self-temperature control function The purpose is to provide.

[0006]

[Means for Solving the Problems]

  In order to achieve the above object, the sheet for sheet heating element according to the present invention is made of a polyester. Polyester non-woven fabric (4) on one side of telfilm (3) and polypropylene on the other side Laminate the film (2).   The sheet heating element is a sheet for sheet heating element (1) described above, and an electrode ( 5) and a conductive substance (6). That is the structure.

[0007]

[Work]

  Since the present invention has such a structure, it is a water-impermeable polypropylene. Water from the outside does not penetrate into the conductive material due to the film, and It stabilizes the resistance value at any given temperature and the self-temperature regulation function. is there.

[0008]

【Example】

  Hereinafter, details of the present invention will be described based on the embodiments shown in the drawings.   FIG. 1 shows a cross section of the sheet (1) for sheet heating elements, the first layer of which is polyester. Tellur non-woven fabric (4), second layer is polyester film (3), third layer is about 40μ thick The polypropylene film (2) is laminated.

[0009]   FIG. 2 shows a sheet heating element using the sheet for sheet heating element (1). The electrode (5) and the electrically conductive substance (6) are provided between the two sheets (1) for sheet heating elements. ) Is arranged.

[0010]

[Effect of device]

  As is apparent from the above, the sheet for sheet heating element and sheet heating element according to the present invention According to the authors, the resistance value of a conductive substance at a certain temperature is stabilized and its self Since the temperature control function is fully exerted and a stable planar heating element can be obtained, is there. .

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example.

FIG. 2 is a cross-sectional view showing an example.

[Explanation of symbols]

1 Sheet for sheet heating element 2 Polypropylene film 3 polyester film 4 Polyester non-woven fabric 5 electrodes 6 Conductive substances

Claims (2)

[Scope of utility model registration request] 1. A sheet (1) for a sheet heating element, which is obtained by laminating a polyester nonwoven fabric (4) on one side of a polyester film (3) and a polypropylene film (2) on the other side. 2. An electrode (5) and an electrically conductive substance (6) between the two non-woven fabric sides of the sheet (1) for a sheet heating element according to claim 1.
A sheet-shaped heating element.