JPH021105Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electric heating device such as an electric carpet.

[Conventional technology]

The conventional electric carpet illustrated in FIG.
A heater, that is, a heating wire 3, is wired in a meandering manner within the carpet body 2, on which the edge thread 1 is sewn continuously around the periphery once, and a heat-sensitive wire 4 is wired along the heating wire 3. Further, a controller 5 is attached to a part of the peripheral edge of the carpet body 2. Both ends of the heating wire 3 are connected to the heating wire 3 as redundant connecting wires 6, and these connecting wires 6
are arranged in a meandering shape closer to the controller 5 than the meandering of the heating wire 3. The surplus connection wire 6 is provided in order to cope with a connection error during manufacturing and a disconnection near the controller 5 during use, and can be pulled out from the carpet body 2 for repair. Further, the heat-sensitive wire 4 and the surplus connection wire 6 are respectively connected to terminal terminals 7 provided within the controller 5.

[Problem that the invention attempts to solve]

However, in the above-mentioned conventional structure, it is necessary to take the surplus connecting wire 6 in and out of the carpet body 2 during repair. To perform this work, first, connect the controller 5 to the carpet main body 2.
It was extremely troublesome because it was necessary to loosen the hem thread 1 after removing it from the holder, and it was also necessary to re-sew the hem thread 1. Moreover,
During manufacturing, the work of wiring the surplus connection wires 6 in a meandering manner much more densely than the heating wires 3,
This process is troublesome because it has to be carried out with consideration given to preventing local overheating, and therefore, the productivity is poor.

[Means for solving problems]

The present invention provides a wiring section for the surplus connection wires connected to the heater inside the controller or connector holder attached to the peripheral edge of the body of the heating device with a built-in heater, and thermally insulates the surplus connection wires in this wiring section. The above-mentioned conventional problems have been solved by using such technical means.

[Effect]

According to this electric heating device, when dealing with incorrect connections between the controller or connector holder and redundant connection wires during manufacturing, or disconnections near the controller during use, the controller or connector holder can be removed by removing the cover of the controller or connector holder. Alternatively, repair work can be carried out by exposing the terminal terminal and the wiring section of the surplus connection wire inside the connector receiver. Also, during manufacturing, there is no need to wire surplus connection wires inside the heating device itself, and the surplus connection wires can be wired inside the controller or connector holder.
Manufacturability of the heating device itself can be improved. Moreover, since the surplus connection wires are thermally insulated and wired closely, local overheating is prevented and wiring can be made compact.

〔Example〕

Hereinafter, an example in which the present invention is applied to an electric carpet will be described with reference to FIGS. 1 and 2.

In the figure, numeral 11 is the carpet main body, that is, the heating device main body. An edge thread 12 is sewn around the entire circumference of the main body 11. Further, a heater 13 and a heat-sensitive wire 14 are provided within the body 11 of the heating device. Note that the heater 13 shown in this embodiment uses a heating wire wired in a meandering manner, and the heat-sensitive wire 14 is wired along this wire. Further, a controller 15 is attached to a part of the periphery of the heating device main body 11, for example, at a corner.

The controller 15 is provided between the front and back surfaces of the corner of the main body 11, and a cover 16 is provided on the front side.
is removably provided. In addition, 1 in Figure 1
7 is a power cord extending from the controller 15. Inside this controller 15, a terminal terminal 18 and an extra connection wire 19 are provided.
A wiring section 20 is provided, and these are exposed when the cover 16 is removed.

The wiring section 20 is connected to the heater 13 and the heat-sensitive wire 1.
The wiring portion 20 is provided at a position closer to the terminal terminal 18 than the terminal terminal 4, and in this embodiment, the wiring portion 20 is formed by a pair of winding protrusions spaced apart from each other. These protrusions are integral with the controller 15.

The surplus connection wire 19 is connected to the heater 13, and in this embodiment, since the heater 13 is a heat generating wire, it is an integral wire with the heater 13. This surplus connection wire 19 is thermally insulated and densely wired to the wiring section 20. In other words, in the case of this embodiment, each time the winding is wrapped around a pair of winding protrusions, the heat insulating plate 21 having a pair of holes that fit into these protrusions is inserted between the two winding protrusions. The wire is inserted into the wiring portion 20 by repeating wrapping around the protrusion. In addition, surplus connection wire 1
9 and the ends of the heat-sensitive wire 4 are connected to terminal terminals 18, respectively.

In manufacturing the electric carpet having the above structure, there is no need to wire the surplus connection wire 19 connected to the heater 13 inside the heating device body 11, and the surplus connection wire 19 that has been drawn out from the carpet body 11 in advance can be removed. For wiring, thermal insulation can be achieved by simply wrapping the wire around a pair of winding protrusions forming the wiring section 20 in the controller 15, interposing a heat insulating plate 21 in each turn. This allows for extremely dense wiring. Therefore, the manufacturability of the electric carpet can be improved compared to the conventional method.

In addition, incorrect connection of surplus connection wires 19, etc. to the terminals 18 of the controller 15 during manufacturing, and errors in connection of the controller 15 during use.
In order to deal with disconnection of the extra connecting wire 19 at the side, the cover 16 of the controller 15 may be removed. In other words, the controller 15 remains attached to the heating device main body 11, and the heating device main body 11
The repair work can be carried out by exposing the terminal terminal 18 and the wiring part 20 of the surplus connecting wire 19 without requiring the troublesome work of unraveling the edge thread 12 of the terminal, and therefore the repair work can be carried out easily.

In use, even though the surplus connection wires 19 are densely wired to the wiring section 20, adjacent portions are thermally insulated via the thermal insulation board 21, so that they touch each other and locally. Overheating is prevented. Moreover, by providing this kind of thermal insulation, it is possible to wire the wires together at a higher density than before.
Extra connection lines 19 can be wired inside the controller 15 without increasing its size.

In addition, in implementing the present invention, surplus connection wire 1
As shown in FIG. 3, the wiring section 20 of No. 9 is constructed by arranging heat insulating plates 21 provided in a comb-tooth shape so as to be inserted into each other, and forming meandering wiring that communicates between adjacent heat insulating plates 21. A structure may also be adopted in which a groove 22 is formed and the excess connection wire 19 is meandered through the groove 22 at a high density.

Note that the above embodiment is an electric heating device in which the controller is directly attached to the heating device itself.
A connector receptacle is directly attached to the periphery of the heating device body, and in the case of a controller-independent electric heating device in which the controller is connected to this receptacle via a connector, terminal terminals and surplus This may be implemented by providing a wiring section for the connection line.

In addition, when implementing the present invention, unless it is contrary to the gist of the invention, the specific structure, shape, position, material, etc. of the heating device body, heater, controller or connector receiver, surplus connection wires, wiring parts, etc. Of course, the present invention can be configured and implemented in various ways without being limited to the one embodiment described above.

[Effect of idea]

According to the present invention, which has the configuration described in the above-mentioned utility model registration claims, there are practical effects such as improved manufacturability and easy repair.

[Brief explanation of the drawing]

1 and 2 show one embodiment of the present invention, FIG. 1 is a partially cutaway schematic plan view of an electric carpet, and FIG. 2 is a sectional view taken along the line - in FIG. 1. be. FIG. 3 is a plan view showing another wiring structure of the surplus connection line. FIG. 4 is a partially cutaway schematic plan view of a conventional electric carpet. 11...Heating device body, 13...Heater, 15...
...Controller, 19... Surplus connection line, 20...
Wiring section.

Claims (1)

[Scope of utility model registration request] Inside the controller or connector holder attached to the periphery of the body of the warming device with a built-in heater, there is provided a wiring section for the surplus connection wire that connects to the heater, and the surplus connection wire is thermally insulated and tightly connected to this wiring section. An electric heating device characterized by being wired.