JPH0718890Y2 - Bathroom heating system in the bathroom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a heating device formed of a reinforced resin molding material for use in a bathroom washroom.

(Prior Art) Conventionally, a plastic product formed of a reinforced resin molding material in which a fibrous reinforcing material is mixed with a thermosetting resin, for example, for heating a washing place in a bathroom is disclosed in Japanese Utility Model Publication No. 63-45615. As described above, the planar heating layer is embedded inside the insulator made of the reinforced resin molding material to form the planar heating element, and the thermosetting resin of the reinforced resin molding material is uncured. In this state, the applicant has proposed that the material is embedded in a reinforced resin molding material via a fibrous layer.

Further, a relatively inexpensive sheet heating element in which a sheet heating layer made of a conductive material is covered with a film insulating layer such as vinyl chloride is also known.

(Problems to be solved by the invention) However, the former heating element is molded by forming a reinforced resin molding material into a plate shape, interposing a heating layer between the molding materials, and heating and pressing a mold. Therefore, there is a drawback that the resistance rate is greatly changed due to the variation of the impregnation of the plate-shaped molding material in the mold, so that the defective rate is high and the cost is high.

Further, in the latter heating element, when it is provided on the laminated surface of the reinforced resin molding material, the resistance value is largely changed by the uncured thermosetting resin penetrating the film-shaped insulating layer, and the uncured resin is also uncured. There are drawbacks that air bubbles are trapped when sticking to the laminated surface of the reinforced resin molding material, the heat is not diffused by the air bubbles, and the heating element is partially burnt because it becomes too high, or the thermostat works and the whole thing does not heat up. It was
Furthermore, the adhesive strength between the laminated surface of the reinforced resin molding material and the film-shaped insulating layer is low, and there is a defect that the film-shaped insulating layer is peeled off from the interface when electricity is applied.

The present invention has been made in view of the above problems, and maintains a stable and uniform heating temperature even when air bubbles are trapped, and has a bonding strength to withstand repeated temperature increases and decreases, and is an inexpensive bathroom heating system in a bathroom. Is provided.

(Means for Solving the Problems) The present invention is directed to a planar heating layer, film-shaped insulating layers covering the upper and lower surfaces of the planar heating layer and their surroundings, and these heating layers and film-shaped insulating layers. A base material adhered to one surface of the planar heating element constituted by, and a plate-shaped or film-shaped good heat conductor that surrounds the heating element mounted on the base material and bonded to the other surface. And a fibrous layer adhered to the surface of the good conductor of heat, and an electric heating board composed of these heating element, base material, good conductor of heat and fibrous layer, the fibrous layer being a reinforced resin molding material. It is characterized in that it is impregnated with the uncured resin and is bonded to the back surface of the washing area.

(Function) A sheet-like heating element is formed by covering the upper and lower surfaces of the sheet-like heating layer and the periphery thereof with a film-like insulating layer such as vinyl chloride. Then, one surface of the planar heating element is placed on the base material and bonded, and then the other surface is covered to form a film-like or plate-like good conductor of heat, and further, a fibrous layer is formed on the surface of the good conductor of heat. Adhere in order to form an electric heating board. Next, an electric heating board is bonded to the back surface of the washing place formed by laminating the reinforced resin molding material by impregnating the fibrous layer with the uncured reinforced resin molding material.

As a result, heat is conducted and diffused through the film-like or plate-like good conductor of heat to prevent partial temperature rise, and the good conductor of heat is bonded to the reinforced resin molding material through the fibrous layer. A constant adhesive strength can be obtained.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sheet heating element 1 according to the present invention. In this sheet heating element 1, a sheet heating layer 2 is a film-like insulating layer 3 made of vinyl chloride, and both upper and lower surfaces thereof are provided. And the surrounding area. The planar heating layer 2 is formed by mixing a thermosetting resin such as unsaturated polyester resin, phenol resin, or epoxy resin with conductive fibers such as stainless fibers, aluminum fibers, and carbon fibers. It should be noted that electrodes such as copper plates to which conductors are connected are attached to opposite ends of the planar heat generating layer 2 (not shown).

In addition, the sheet heating element 1 blocks the uncured resin of the reinforced resin molding material, and one surface of the sheet heating element 1 is placed on a base material 4, for example, a water resistant veneer as a reinforcing material and a heat insulating material. It is glued together. As the base material 4, other than that, use synthetic wood obtained by impregnating a glass fiber bundle with a foam-curing resin liquid such as a polyurethane resin liquid or a polyester resin liquid, and foam-curing the resin liquid in a mold to form the wood. You can also

On the other hand, the other surface to which heat is to be transferred by the sheet heating element 1 is covered with an aluminum foil 5 as a good heat conductor by a hot melt adhesive, and the surface of the aluminum foil 5 is covered with a fibrous layer. The glass cloth 6 is adhered so that a part of it penetrates. As the fibrous layer, woven or non-woven fabric such as natural fiber or synthetic fiber can be used, and it is preferable that the fibrous layer has electric insulation and heat resistance. In this way, the sheet heating element 1 is bonded onto the base material 4, and the aluminum foil 5 and the glass cloth 6 are further bonded in this order to cover the heating element 1 to form the electric heating board 7.

In this embodiment, as shown in FIGS. 1 and 3, the aluminum foil 5 is configured so as to cover the periphery of the sheet heating element 1 and adhere to it. There is no particular problem even if the size is such that a part of it is exposed.

FIG. 2 shows a bathtub 10 with a washing place provided with the electric heating board 7 described above.
Washing basin 11 and bathtub 12 are integrally molded by a reinforced resin molding material in which fibrous reinforcing material is mixed with thermosetting resin, and the surfaces of these washing basin 11 and bathtub 12 are made of thermosetting resin. A surface layer is formed, and an electric heating board 7 is embedded on the back surface of the washing area 11.

Next, the procedure of providing the electric heating board 7 on the back surface of the washing area 11 will be described. After forming a surface layer 21 by applying a thermosetting resin to a mold of a bathtub with a washing area (not shown) and curing it, the surface layer 21 is formed on the surface layer 21. Laminate the glass mat with polyester resin liquid,
The intermediate layer 22 is formed by curing while defoaming.
The intermediate layer 22 may be laminated multiple times. Then
A polyester resin liquid is applied to a portion of the intermediate layer 22 corresponding to the washing area 11, the previously prepared electric heating board 7 is placed with its base material 4 on the upper side, and is cured by a load block (not shown). . After that, the reinforcing frame 23 is attached on the base material 4 of the electric heating board 7, and a glass mat is laminated and defoamed on the outer side of the glass mat with a polyester resin and cured. After curing, the mold is removed to form a bathtub 10 with a washing place in which the electric heating board 7 is embedded in the washing place 11.

Although aluminum foil is used as an example in this embodiment, it may be in the shape of a plate, and a material having good heat conductivity other than aluminum can be used.

Also, the bathroom is shown as an integrally formed washbasin and bathtub, but it can be installed in a bathroom washroom where the washroom and bathtub are separated, such as a bathtub stand with a washroom.

(Effects of the Invention) As described above, according to the present invention, by covering the film-shaped insulating layer that covers the planar heat-generating layer with a good heat conductor formed in a film shape or a plate shape, the good conductor is made into a resin liquid. It is possible to prevent the abnormal heat generation by simultaneously conducting and diffusing the heat. In addition, by bonding to the reinforced resin molding material through the fibrous layer bonded to this good conductor of heat, it is possible to obtain sufficient bonding strength even when the temperature is raised and lowered.

[Brief description of drawings]

The drawings illustrate an embodiment of a heating device for a bathroom in the present invention. Fig. 1 is a sectional view of an electric heating board constituting the heating device of the present invention, and Fig. 2 is an electric heating board embedded in a bathtub with a washing room. FIG. 3 is a partial enlarged view of FIG. DESCRIPTION OF SYMBOLS 1 ... Planar heating element, 2 ... Film-like insulating layer 3 ... Planar heating layer, 4 ... Base material 5 ... Good heat conductor, 6 ... Fibrous layer 7 ... Electric heating board, 10 ... Bathtub with washroom 11 …… washroom, 12 …… tub

Claims (1)

[Scope of utility model registration request] 1. A planar heating layer, a film-shaped insulating layer covering the upper and lower surfaces of the planar heating layer and its periphery, and a planar heating element composed of these heating layer and film-shaped insulating layer. A base material adhered to one surface, a plate-like or film-like good conductor of heat that surrounds the heating element that is placed on the base material and that is adhered to the other surface, and the surface of the good heat conductor The heating layer, the base material, the good conductor of heat, and the electric heating board composed of the fibrous layer, which are composed of the fibrous layer bonded to the fibrous layer, are impregnated with the uncured resin of the reinforced resin molding material. A heating system for the bathroom in the bathroom, which is joined to the back of the bathroom.