JPS61260580A - Electric carpet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric carpet for use in floor heating.

2. Description of the Related Art Generally, in order to keep the temperature of an electric carpet constant, heater wires wired inside the main body are energized by a signal output from a control circuit in response to a detection result by a temperature detection means inside the main body. It was turned on and off by a relay element.

Problems to be Solved by the Invention In such a conventional configuration, when a relay element is used,
Since the load on the heater wire is very large, the on/off current is also very large, making the relay element large and expensive, and the life of the contacts is short. Therefore, the above problem can be solved by turning on and off the power to the heater wire using a semiconductor such as a triac element, but the heat dissipation plate for dissipating the heat generated from the slight voltage drop when the triac element is turned on is very difficult to solve. When trying to make the controller smaller, lower cost, and extend its lifespan at the same time, one had to sacrifice one of them.

The present invention is intended to solve these problems, and aims to provide an electric carpet that allows the controller to be made smaller, lower in cost, and longer in life at the same time.

Means for Solving the Problems In order to solve this problem, the present invention provides a planar carpet body, a heater wire disposed within the carpet body, and a heater wire disposed within the carpet body so as to be in close contact with the heater wire. a control circuit that controls the amount of power supplied to the heater wire according to the detection result of the temperature detection means; and a control circuit that receives a signal from the control circuit and supplies the power to the heater wire. The device has a triac element that turns on and off the current supply, and a heat sink of the triac element is thermally coupled to the aluminum sheet.

Function: With this configuration, a triac element is used to turn on and off the power to the heater wire, and by bringing the heat sink into close contact with the aluminum sheet inside the main body, this aluminum sheet evens out the uneven temperature of the main body. In addition to this, the extremely large heat dissipation plate of the triac element, which was conventionally required, is no longer necessary, and therefore the controller can be made smaller, lower in cost, and longer in life at the same time.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings.

In the figure, 1 is an aluminum sheet sandwiched between a carpet outer material 2 and a carpet lining material 3 that constitute a planar main body;
4 is a heater wire, and the heat dissipation plate 5a of the triac element 5, which turns on and off the electricity to the heater wire 4, is fixed and tightly attached to the aluminum sheet 1 protruding from the carpet outer material 2 and the carpet lining 3 by means of a metal fitting 6. has been done. In order for the triac element 5 to adhere efficiently to the aluminum sheet 1, the terminal portion 5b of the triac element 5 was homed and an escape hole 7a was provided in the printed circuit board 7. 8 is a controller case.

Although not shown in the drawings, the triac element 5 is equipped with means for detecting the temperature within the carpet body and a control circuit for controlling the amount of power supplied to the heater wire 4 according to the detection result of the temperature detecting means. The signal from the control circuit is
In response to this, the power to the heater wire 4 is turned on and off.

In the above configuration, the temperature of the aluminum sheet 1 during normal use is about 30°C to 40°C, and the triac element 5
Since the temperature of the heat dissipation plate 5a is about 70°C to 80°C, a sufficient heat dissipation effect can be obtained.

Effect of the invention.

As described above, according to the present invention, turning on the heater wire,
By bringing the heat dissipation plate of the OFF triac element into close contact with the aluminum sheet placed inside the carpet body, a large heat dissipation plate is no longer required, making the controller more compact, lower cost, and longer lasting, which was difficult with conventional technology. This makes it possible to simultaneously realize the following, thereby providing an electric carpet that is extremely useful in practice.

[Brief explanation of drawings]

The drawing is a sectional view of a controller section of an electric carpet according to an embodiment of the present invention. 1... Aluminum sheet, 2... Carpet outer material, 3.
... Carpet lining, 4... Heater wire, 5... Triac element, 5a... Heat sink, 5b... Terminal section, 7... Printed circuit board

Claims (1)

[Claims] 1. A planar carpet body, a heater wire disposed within the body, an aluminum sheet disposed within the body so as to be in close contact with the heater wire, a temperature detection means for the body, and the heater wire. It has a control circuit that controls the amount of power supplied to the heater wire according to the detection result of the temperature detection means, and a triax element that receives a signal from the control circuit and turns on and off the power supply to the heater wire. An electric carpet in which a heat sink is thermally combined with the aluminum sheet.