JP2530565Y2 - Electric carpet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement in an electric carpet used for heating a general household.

<Conventional Technology> As shown in FIG. 2, a conventional electric carpet has a back cloth 11 on which a heating element 12 indicated by a solid line in the figure and a heat sensitive element 13 indicated by a dashed line in the figure are wired. Under the control of a controller 17 attached to a corner of a main body 16 in which the cloth 14 is bonded with an adhesive and the outer periphery is sewn with an overlock thread 15, the heat generated by the heat generating body 12 of the carpet main body 16 is sensed by the heat sensitive body 13, Perform temperature control.

In addition, the carpet main body 16 is switched to the right side 16a or the left side 16b by a heating area changeover switch 18 mounted on the controller section of FIG.

As shown in FIG. 5, one heat sensing element 13 for sensing the heat generated by the heating element 12 or two heat sensing elements 13 as shown in FIG. Fifth
In the case shown in the figure, when a cushion, a cushion or the like having good heat insulation is placed in the A section 19, the inside of the A section 19 is kept warm and the heating element in the A section 19 is kept.
Although the temperature of 12 becomes high, the temperature is sensed by the thermal element 13 in the A section 19 and the carpet body is controlled by the controller section 17
16 turns off. This is because the temperature of the right side 16a and the left side 16b of the carpet body 16 is simultaneously controlled because there is only one heat sensitive body 13.

FIG. 6 shows that the heat sensitive body 13 is wired one by one to the right side 16a and the left side 16b of the carpet body 16 so that the right side 1
6a and left surface 16b can be controlled at different temperatures.
At this time, if a cushion, a cushion, or the like having good heat insulation properties is placed on the portion A 19, the temperature of the heating element 12 of the portion A 19 becomes high as in FIG.

However, in FIG. 6, since the two thermosensitive bodies 13 are included, the right side 16a is turned off when the thermosensitive body 13a in the A section 19 senses the temperature.
However, since the left side 16b has no heat sensitive body 13b in the A section 19, the heat generating body 12b becomes hot, and the safety circuit of the controller section 17 works and breaks down.

<Problem to be Solved by the Invention> As shown in FIG. 6, when the heating element 12 and the heat sensing element 13 are wired, when a seat, a cushion or the like having good heat insulation is placed on the A section 19, the heating element 12b on the left side 16b is removed. The temperature became high, and there was no possibility of failure because there was no heat sensitive body 13b for sensing this temperature.

<Means for solving the problems> In order to solve the conventional problems, the electric carpet of the present invention has a plurality of heating surfaces adjacent to each other, and independently controls the heating element and the heat sensitive element on each heating surface. In an electric carpet provided as possible, a heat sensitive body is wired along each of a straight portion and a bent portion of the heating body wired near the boundary of the heating surface.

<Operation> As shown in FIG. 1, wiring is performed so that the temperature of each heating element 2 at the boundary between the right surface 6a and the left surface 6b of the carpet body 6 can be sensed, so that the A section 9 has a seat cushion or cushion with good heat insulation. The right side 6a is sensed by the thermosensitive body 3a and turned off under the control of the controller unit 7.

In addition, since the left side 6b can be sensed by the thermosensitive body 3b and turned off under the control of the controller 7, the electric carpet is less likely to break down.

<Embodiment> An embodiment of the electric carpet of the present invention will be described below.

First, FIG. 2 shows a front view of the electric carpet. FIG. 3 is a sectional view of the main body 6 of the electric carpet.

The carpet has a controller section 7 in which a heating element 2 and a thermosensitive element 3 are wired on a backing cloth 1, a front cloth 4 is bonded with an adhesive, and an outer periphery is attached to one corner of a main body 6 sewn with an overlock thread 5. , The heat generated by the heat generating element 2 of the carpet body 6 is sensed by the heat sensitive element 3 to control the temperature.

At this time, the carpet body 6 is switched to the right side 6a or the left side 6b by the heating area changeover switch 18 attached to the controller section in FIG.

Conventionally, the heat-sensing body 13 that senses heat generation, as shown in FIG.
One or two wires were wired as shown in FIG. In this case, as shown in FIG.
For example, if a cushion, a cushion, or the like having good heat insulation properties is placed on the A section 19, the A section 19 is kept warm and the temperature of the heating element 12 in the A section 19 becomes high. But the heat-sensitive body 13 in the A section 19
Senses the temperature and controls the right side 16
We turned off the power of a and left side 16b and there was no problem,
As shown in FIG. 6, two thermosensitive bodies 13 are wired, whereas a single thermosensitive body up to now has the right side 16a and the left side 16a controlled at the same temperature. However, the temperature control can be performed separately for each of the right side 16a and the left side 16b.

However, as shown in FIG. 6, when the heat sensitive body 13 is wired one inside from the boundary between the right side 16a and the left side 16b of the heat generating body 12, a heat insulating material such as a tongue or a cushion which sits on the A portion 19 as described above is used. When heated, the A section 19 is kept warm and the heating element 12 in the A section 19
Temperature becomes high. However, on the right side 16a, the heat sensitive body 13a of the A section 19 senses high temperature, and the power of the right side 16a is turned off under the control of the controller section 17. However, left side 16
Regarding b, since there was no heat sensing element 13b in the A section 19 that senses high temperature, the temperature became abnormal and the safety circuit worked and the device broke down.

In the present invention, as shown in FIG. 1, each of the thermosensitive elements 3 on the right face 6a and the left face 6b is detected so that the temperature of the heating element 2 on each of the right face 6a and the left face 6b, which is the boundary between the right face 6a and the left face 6b, can be sensed. By laying it immediately besides, even if a seat cushion or cushion with good heat retention is placed in the A section 9 in the same place as in FIG. 6, the right side 6a and the left side 6b in the A section 9 have the respective heat sensitive bodies 3a, 3b is on the right
The temperature of the heating elements 2 on the left and right sides 6a and 6b is sensed, and the power of the right and left sides 6a and 6b is turned off under the control of the controller unit 7.
The electric carpet will be less likely to fail.

The above description is an example of the present invention, and the carpet body 6
Even if the switching shape of the heating area is different, the number of failures is reduced by inserting a heat sensitive element that senses the temperature of the heating element at the boundary of the switching surface.

<Effect of the Invention> Since the electric carpet of the present invention has the above-described configuration, the temperature of the heating element wired near the boundary of the heating surface can be sensed not only at the linear portion of the heating element but also at the bent portion. Therefore, even if a seat or a cushion is placed at any position near the boundary of the heating surface, a failure due to overheating of the electric carpet can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a wiring diagram in which two heat-sensitive members of the electric carpet of the present invention are wired, FIG. 2 is a front view of the electric carpet, and FIG.
FIG. 4 is a cross-sectional view of the electric carpet main body, FIG. 4 is a controller section of the electric carpet, FIG. 5 is a wiring diagram in which one heat-sensitive body of the conventional electric carpet is wired, and FIG. 6 is heat sensitivity of the conventional electric carpet. The wiring diagram in which two bodies were wired. In the figure, 2a, 2b: heating element, 3a, 3b: heat-sensitive element, 6: carpet body, 6a: right side of carpet body, 6b: left side of carpet body.

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric carpet comprising a plurality of heating surfaces adjacent to each other and comprising a heating element and a heat-sensitive element so as to be independently controllable on each heating surface, wherein a straight line of the heating element wired near a boundary between the heating surfaces. An electric carpet, wherein a thermosensitive body is wired along each of the portion and the bent portion.