JPH0619296U - Heater panel for electric heater - Google Patents

Abstract

(57) [Abstract] [Purpose] Eliminates the need to manually wind long heating wires around a heat-resistant insulating plate as in the past, and punches thin stainless steel plates for easy and quick planar heat generation. Perhaps the plate can be mass-produced, but the sheet heating plate is press-fitted into the soft heat-resistant insulating plate and fixed by a simple pressing operation. [Structure] A thin layer of stainless steel plate is punched out, and at a symmetrical position, a meandering flat belt-shaped heating element 2 consisting of a series of similar shapes is formed.
The sheet-like heat generating plate 1 integrally molded so that 3 is arranged in a plane is formed. The sheet heating plate 1 is a relatively soft heat-resistant insulating plate 6.
A heat-resistant insulating plate 7 is attached to the surface side of the planar heat generating plate 1 while being pressed into the inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flat plate-shaped heater panel for electric heaters provided in electric kettles for boiling water, electric rice cookers and the like.

[0002]

[Prior art]

 Conventionally, in various electric heaters such as electric kettles for electric kettles or electric rice cookers, a flat plate-shaped heater plate is built in the heating part, and the flat plate-shaped heater plate is composed of two heat-resistant insulation plates. The plates are arranged two-dimensionally, the heating wire is wound around one of the two heat-resistant insulating plates, and then hung on the other heat-resistant insulating plate and wound in series on it. The heat-resistant insulating plate had a structure in which both sides were sandwiched between heat-resistant insulating plates and further covered with a metal plate exterior body.

[0003]

[Problems to be solved by the device]

 By the way, in the conventional heater panel for electric heaters as described above, the heating wire wound around one heat-resistant insulating plate is wound at the winding end portion of one heat-resistant insulating plate and the winding start portion of the other heat-resistant insulating plate. After passing through the stop hole, it is fixed by winding it once or twice, and similarly through the stop hole of the other heat-resistant insulation plate, and then the heating wire is wound around the other heat-resistant insulation plate. However, it is very troublesome to manually pass the heating wire through the stop hole in this way because the heating wire passing through the stop hole is quite long, and the winding of the heating wire is difficult. Although the work could not be performed efficiently, there was a problem that the heating wire itself was twisted in the process of passing through the stop hole, resulting in loss of strength and the risk of cutting.

The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to change a long heating wire into a heat-resistant insulating plate manually by hand as in the conventional case. The inefficient winding work of winding was completely abolished, and it was possible or possible to mass-produce planar heating plates simply and quickly by simply punching and forming thin-layer stainless steel plates. The surface heating plate is pressed into place in the heat-resistant insulating plate that is relatively soft by a simple press-fitting operation without using any fixing member. It is intended to provide a heater panel for an electric heater, which is inexpensive and has a high degree of safety, by applying a heat-resistant insulating plate to the.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a heater panel for an electric heater according to the present invention is formed by punching a thin stainless steel plate, and flattening a meandering heating element consisting of a series of similar shapes at left-right symmetrical positions. In this way, a sheet-like heat generating plate integrally molded is formed by plastic molding.The sheet-like heat generating plate is press-fitted into a relatively soft heat-resistant insulating plate, and a heat-resistant insulating plate is placed on the surface of the sheet-like heat generating plate. It is the one that is attached.

[0006]

[Action]

 Now, prepare a thin stainless steel plate. Next, the stainless steel plate is punched using a press machine. By doing so, a sheet heating plate made of one stainless steel plate integrally molded so that a series of meandering flat belt-shaped heating elements arranged in a plane at a symmetrical position is formed.

Therefore, if the plastically formed sheet-shaped heat generating plate is placed on the heat-resistant insulating plate which is made relatively soft and then pressed, the sheet-shaped heat-generating plate becomes a soft heat-resistant insulating plate. It is easily press-fitted inside and installed in place without shifting left or right. Therefore, the sheet heating plate can be press-fitted into a predetermined position on the surface of the heat-resistant insulating plate without using any fixing member or adhesive.

As described above, when the planar heat generating plate is press-fitted onto the surface of the heat-resistant insulating plate, another heat-resistant insulating plate may be attached to the surface side of the planar heat-generating plate to form a thin layer with a high degree of safety. A high-quality heater panel for electric heaters can be obtained easily and quickly.

[0009]

【Example】

 Examples will be described with reference to the drawings. In FIG. 1 to FIG. 3, reference numeral 1 denotes a planar heating plate formed by punching and forming a 0.185 mm-thick stainless steel plate using a press machine or the like. Is molded into the following shape. That is, the meandering flat belt-shaped heating elements 2 and 3 made up of a series of similar shapes are integrally molded in a horizontally symmetrical position so as to be arranged in a plane, and the planar heating plate 1 is entirely in a vertically long rectangular shape. Has been formed. Then, lead plates 4 and 5 having the same shape on the left and right sides and wider than the widths of the heating elements 2 and 3 are integrally formed at left and right symmetrical positions at the ends of the heating elements 2 and 3 having a meandering flat strip shape. It is provided. Reference numeral 6 is a heat-resistant insulating plate for setting the planar heat generating plate 1 at a predetermined position without using any fixing member. The heat-resistant insulating plate 6 is left by pressing the planar heat generating plate 1. It is made relatively soft so that it can be press-fitted into the heat-resistant insulating plate 6 at a predetermined position without shifting to the right. Therefore, with the above-mentioned configuration, it is possible to simply and accurately install the heat-resistant insulating plate 6 simply by press fitting means without using any fixing member or adhesive. An unillustrated contact piece for electric current is welded to the pair of left and right lead wires 4 and 5. Reference numeral 7 is a heat-resistant insulating plate which is adhered with a stapler or the like so as to cover the surface side of the planar heat-generating plate 1 press-fitted into the soft heat-resistant insulating plate 6.

[0010]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. A thin layer of stainless steel plate was punched out, and a sheet-shaped heat generating plate made of stainless steel plate was integrally formed so that a series of meandering flat belt-shaped heating elements in a symmetrical pattern at the left-right symmetry were integrally formed. Therefore, it is possible to mass-produce more easily and cheaply by only pressing work, eliminating the conventional winding work of manually hooking the heating wire into the locking groove of the heat-resistant insulating plate and locking it. Perhaps, it is possible to provide a uniform heater panel for labor saving, and since the same meandering flat belt-shaped heating element is installed in the symmetrical position, it is easy to increase and equalize the heat generation amount. Not only can this be achieved, but since the sheet heating plate can be press-fitted into the soft heat-resistant insulating plate by a simple pressing operation, all manufacturing of the heater panel can be performed efficiently by mechanical work. Outside, surface-like It can be firmly attached to a predetermined position of the heat insulation plate without the use of a hot plate what fixing member or an adhesive such as the like, the mounting means is simple.

[Brief description of drawings]

FIG. 1 is a front view of a heater panel for an electric heater according to the present invention.

FIG. 2 is a front view showing a planar heat generating plate positioned inside a soft heat-resistant insulating plate.

3 is a cross-sectional side view taken along the line AA of FIG.

[Explanation of symbols]

 1 planar heating plate 2, 3 heating element 6 soft heat-resistant insulating plate 7 heat-resistant insulating plate

Claims (1)

[Scope of utility model registration request] 1. A thin stainless steel plate is punched out to form a sheet-like heating plate integrally formed so that meandering heating elements made up of a series of similar shapes are arranged in a plane at left and right symmetrical positions, A heater panel for an electric heater, characterized in that the sheet-shaped heat generating plate is press-fitted into a relatively soft heat-resistant insulating plate, and a heat-resistant insulating plate is attached to the surface of the sheet-shaped heat generating plate.