JPH0632278B2 - Method for winding heating wire of heater for electric heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a flat plate-shaped heater, such as an electric rice cooker and an electric pot, for manufacturing various heaters for electric heaters. Relates to a heating wire winding method for a heater for an electric heater, which can easily, reliably, and efficiently wind a heating wire around a heat-resistant insulating plate.

[Prior Art] Conventionally, in various electric heaters such as an electric rice cooker and an electric pot, a flat plate-shaped electric heater is built in a heating portion, and the flat plate-shaped electric heater is shown in FIG. As shown in
Two heat-resistant insulating plates 1, 1'are arranged in a plane, and heating wires 2, 3 are wound around the two heat-resistant insulating plates 1, 1'in series. The heat-resistant insulating plates 1 and 1'are sandwiched between heat-resistant insulating plates and covered with a metal plate exterior body 4.

[Problems to be Solved by the Invention] In the conventional heater for an electric heater as described above, as shown in FIG.
Holes 5 and 5'through which the heating wire is wound are drilled at one end of each of them, and the winding end portion of the heating wire 3 of one heat-resistant insulating plate 1 is passed through the hole 5 and the inner opening 6 is covered with 1 ~
After winding twice, the other heat-resistant insulating plate is similarly wound around the hole 5'and the opening 6'inside thereof, and the heating wire 3 is wound around the heat-resistant insulating plate 1 '. In this way, it is necessary to repeatedly pass the heating wire 3 in the middle of winding through the holes 5 and 5 '.
Since the heating wire 3 passing through 5'is still quite long, the work is very troublesome, and it may not be possible to efficiently perform the winding work of the heating wire. However, there are problems that the product itself is twisted and its strength is impaired, or it may be cut.

The present invention arranges two heat-resistant insulating plates in a plane, and when heating wires are wound in series from one side to the other side,
After winding the winding end of the heating wire wound around one heat-resistant insulating plate a plurality of times from the outside over the pair of cuts formed at the end, a pair formed at the end of the other heat-resistant insulating plate After wrapping multiple times from the outside over the notched part of
An object of the present invention is to obtain a heating wire winding method for a heater for an electric heater, in which a heating wire can be wound around the heat-resistant insulating plate to simplify the heating wire winding work and promote work efficiency.

[Means for Solving the Problems] In order to achieve the above object, in the heating wire winding method for a heater for an electric heater according to the present invention, two heat-resistant insulating plates are arranged in a plane, and one of them is extended to the other. In the manufacturing process of a flat plate-shaped heater formed by winding a heating wire in series, the winding end of the heating wire wound on one heat-resistant insulating plate is extended from the outside over a pair of cuts formed at the end. After being wound a plurality of times, it is further wound a plurality of times from the outside over a pair of notches formed at the end of the other heat resistant insulating plate, and then a heating wire is wound around the heat resistant insulating plate. .

[Operation] In the manufacturing process of the heater for an electric heater according to the present invention, the winding terminal end of the heating wire 104 wound around one heat-resistant insulating plate 102 is a pair formed at the end of the heat-resistant insulating plate 102. It is simply, easily and surely fixed only by the operation of winding the cut portions 106, 106 from the outside a plurality of times. The heating wire 104 fixed in this manner is further connected to the other heat-resistant insulating plate 102 '.
Similarly, the heating wire 104 is fixed to the heat-resistant insulating plate 102 by simply winding it a plurality of times from the outside over the pair of notches 106 'and 106' formed at the ends of the heating wire 104. Two heat-resistant insulating plates that are wound around ′ and arranged in a plane
A planar heater is constructed by winding a heating wire 104 and the like around 02, 102 'in series.

[Examples] The method according to the present invention will be described with reference to the drawings showing an example of a heater for an electric heater.

In FIGS. 1 and 2, 101 is a flat plate-shaped heater, and this heater 101 is composed of two heat-resistant insulating plates 102, 102 '.
Are arranged in a plane, the main heating wire 103 and the auxiliary heating wire 104 are wound in series between them, and both surfaces of the heat-resistant insulating plates 102, 102 'arranged in a plane are formed by metal plates with the heat-resistant insulating plates sandwiched therebetween. It is configured to be integrally held by the outer casing 105 that is formed. The main heating wire 103 is in the shape of a flat belt, and the auxiliary heating wire 104 is in the shape of a thin wire. The main heating wire 103 and the auxiliary heating wire 104 are wound so as to be lined up on both sides and only on one side. . The main heating wire 103 is for heating and the auxiliary heating wire 104 is for keeping heat after heating, for example.

By the way, the auxiliary heating wire 104 is connected to the heat-resistant insulating plate 10 on one side.
The winding end portion is inserted from the outside over the pair of cut portions 106 and 106, and is wound and fixed about 1 to 2 times, and the same is applied to the pair of cut portions 106 ′ and 106 ′ provided on the other heat-resistant insulating plate 102. Insert from the outside and wrap around 1 to 2 times to fix.
The auxiliary heating wire 104 is wound around the heat resistant insulating plate 102 'to form a heater.

In this way, the auxiliary heating wire 104 wound in series around the two heat-resistant insulating plates 102, 102 'has the winding end portion of one heat-resistant insulating plate 102 and the winding start portion of the other heat-resistant insulating plate 102'.
From the outside, a pair of notches 106, 106 and 106 ′,
It can be fixed easily and surely only by inserting it over 106 'and winding it a plurality of times. Therefore, the auxiliary heating wire 104
Perhaps the work is greatly simplified compared to the conventional method of passing the auxiliary heating wire 104 through the hole, the auxiliary heating wire 104 is not twisted and the auxiliary heating wire is not twisted.
There is no risk of damaging the strength of 104 or breaking it.

[Advantages of the Invention] Since the present invention is the method as described above, the following advantages can be obtained.

In a manufacturing process of a flat plate-shaped heater 101 in which two heat resistant insulating plates 102, 102 'are arranged in a plane and a heating wire 104 is wound in series from one side to the other side, the heat resistant insulating plate 102 is wound around one of the heat resistant insulating plates 102. After the winding end of the heating wire 104 is wound a plurality of times from the outer side over the pair of cut portions 106, 106 formed at the ends, a pair of cut portions formed at the end of the other heat-resistant insulating plate 102 '. Since the heat-resistant insulating plate 102 'is wound with the heating wire 104 after being wound a plurality of times from the outside over 106', 106 ', the heating wire 104 is wound in series from one heat-resistant insulating plate 102, 102' to the other. It is not necessary to pass through each hole to fix the winding end and winding start part of the product, and it is only necessary to insert it from the outside over the pair of cut parts and wind it multiple times, and that work can be done easily and quickly. Perhaps it is possible to cause excessive twisting of the heating wire Or impair degrees, etc. there is no risk of broken heating wire, and significantly improve the heater manufacturing process, an effect that can be further promoted and the work efficiency.

[Brief description of drawings]

The drawings are for explaining the heating wire winding method according to the present invention. FIG. 1 is an overall plan view showing a partially broken heater heater, and FIG. 2 is an enlarged plan view of a portion thereof. FIG. 3 is a plan view showing a part of a conventional heater for an electric heater in a cutaway manner. 101 ... flat plate heater, 102, 102 '... one and the other heat-resistant insulating plate, 103 ... main heating wire, 104 ... auxiliary heating wire, 106, 106 and 106', 106 '... pair of notches

Claims (1)

[Claims] 1. In a manufacturing process of a flat plate-shaped heater in which two heat-resistant insulating plates are arranged in a plane and a heating wire is wound in series from one to the other, the heat-resistant insulating plate is wound on one of the heat-resistant insulating plates. After winding the winding end of the heating wire from the outside over the pair of notches formed at the ends, further from the outside over the pair of notches formed at the end of the other heat-resistant insulating plate. A heating wire winding method for a heater for an electric heater, which comprises winding a plurality of times and then winding a heating wire around the heat-resistant insulating plate.