JP2909619B2 - Electric carpet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric carpet used for heating in ordinary households.

[0002]

2. Description of the Related Art A conventional electric carpet includes a heater wire, a temperature detection line for detecting a temperature of the heater wire, temperature setting means for setting a voltage corresponding to a control temperature of the heater wire, and a temperature control switch. A structure including a timer that counts a certain time by turning on is a generally known structure. By the function of the timer, energization can be automatically started at a desired time. Operates at the set temperature on the temperature control scale when the timer function is set.

(For example, JP-A-2-270281, JP-A-60-138338, JP-A-64-21
885 and JP-A-63-273740).

[0004]

A heater wire, a temperature detection line for detecting the temperature of the heater wire, temperature setting means for setting a voltage corresponding to a control temperature of the heater wire, and a temperature control switch being turned on. A conventional electric carpet having a timer for counting a certain time automatically starts energization at a preset time when the timer is energized, but changes a preset temperature or stops energization. Has a problem that the operation is troublesome, such as requiring an artificial operation.

[0005]

In order to solve the above-mentioned problems, a heater body including a heater wire and a temperature sensor arranged along the heater wire, a pressure sensor for detecting the presence or absence of a person, and the pressure sensor And a temperature control circuit for controlling the temperature of the heater body based on a signal from the controller, and an electric carpet including a controller having a timer for operating the heater body at a desired time. When the warming is not detected within a certain time, a function to automatically switch the set temperature to the set temperature at the low scale is provided.

[0006]

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS By providing a timer, a pressure sensor for detecting the presence or absence of a person, and a temperature control circuit linked to the timer, the time from the start of energization by the timer function is measured, and the pressure sensor starts energization. If the heating is not detected within a certain period of time, the set temperature is automatically switched to the energization at the set temperature on the low scale.

[0008]

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIG. 1 is a perspective view of an electric carpet showing a configuration of one embodiment of the present invention.

Reference numeral 1 denotes a heater body. The heater body 1 has a pressure sensor 2 for detecting whether or not heating is performed between a heater wire 6 arranged in a meandering shape and a temperature sensor 7 such as a signal line. Is provided.

Reference numeral 3 denotes a controller. The controller 3 detects a signal from a temperature sensor 7 such as a signal line, and controls a power supply to the heater main body 1 in accordance with a set temperature. A function to measure the time from the start of energization by the timer 4, a function to automatically switch the set temperature to the set temperature at the lower scale, and a function to forcibly stop energization. It is composed of

Means for starting energization at a desired time, a pressure sensor 2 serving as a warming detection means for detecting whether or not the heater body 1 is warming up, and a temperature adjusting means 5 for determining a control temperature of the heater body 1 And a means for measuring the time from the start of energization by the function of the timer 4, a temperature control circuit 8 serving as a means for switching the control temperature to the control temperature at the low scale, and for stopping the energization.

Next, the operation of the above configuration will be described.

First, a power switch (not shown) is turned on.
The energization start time is set by the function of the timer 4 provided in the controller 3.

When the power supply start time comes, power supply to the heater sensor 6 such as a heater wire 6 and a signal wire, which are arranged in a meandering manner in the heater main body 1, is performed at a set temperature set by the temperature control means 5 for a certain period of time.

When a person starts heating within this time, the pressure sensor 2 provided in the heater main body 1 detects the heating and the function of measuring the time from the start of energization is stopped and normal control is performed.

On the other hand, when the pressure sensor 2 does not detect warming, a function of automatically switching the set temperature to the set temperature at the lower scale is received from the function of measuring time, regardless of the set temperature in the temperature adjusting means 5. Control is performed at the set temperature at the lower scale.

In this case, the measurement of the energization time is continued, and after a certain time has elapsed, if the heating is not detected, the energization to the heater body 1 is forcibly stopped.

Whether or not a person is warming up is always checked by a signal sent from the pressure sensor 2, and when it is detected that warming has not been performed for a certain time, the power supply is automatically stopped.

When the warming is detected again, the power supply to the heater main body 1 is started again at the temperature set by the temperature adjusting means 5.

[0022]

As described above, according to the present invention, by providing a timer, a pressure sensor for detecting the presence or absence of a person, and a temperature control circuit linked to the timer, heating is started after the energization is started by the timer function. If the time to start is long, perform energy saving operation at the set temperature on the low scale,
The timer function automatically stops even if you forget to turn on the power, so that it is not necessary to change the preset temperature or to perform any manual operation to stop the power supply. A useful electric carpet could be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electric carpet showing one embodiment of the present invention.

FIG. 2 is an electric carpet showing one embodiment of the present invention.
It is a principal part figure of P part shown in FIG.

FIG. 3 is a flowchart of an electric carpet showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heater part 2 Pressure sensor 3 Controller 4 Timer 5 Temperature control means 6 Heater wire 7 Temperature sensor 8 Temperature control circuit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-318090 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24D 13/02

Claims (1)

(57) [Claims] 1. A heater body (1) comprising a heater wire (6) and a temperature sensor (7) arranged along the heater wire (6), and a pressure sensor (2) for detecting the presence or absence of a person. Heater body based on the signal from this pressure sensor (2)
(1) An electric carpet comprising a temperature control circuit (8) for controlling the temperature and a controller (3) having a timer (4) for operating the heater body (1) at a desired time. An electric carpet, characterized in that the circuit (8) has a function of automatically switching a set temperature to a set temperature at a low scale when the pressure sensor (2) does not detect warming within a predetermined time from the start of energization.