JPS63239793A - Bed warmer - 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 Industrial Application The present invention relates to a heating device for sleeping such as an electric blanket.

Conventional technology The general way to use an electric blanket is to first turn on the power by setting the knob scale to "strong" and pre-energize it for about an hour, then turn it down to the desired usage scale as soon as you go to bed. is considered a good way to use it.

When using an electric blanket, such operations are always necessary, but sometimes there are problems such as forgetting to go to sleep with the pre-energization setting set to "strong" and waking up in the middle of the night due to the heat. .

In order to eliminate such problems, an electric blanket has been developed, as shown in FIG. 4, which, when the power switch is turned on, uses a timer circuit to set the temperature at high A for a certain period of time, and then automatically returns to the temperature set by the knob.

Problems to be Solved by the Invention However, with such an electric blanket, time A is fixed, so for example, when going to bed at time B, the timer circuit is still operating and the high setting remains, so the timer circuit operates. must be released, and when going to bed at time C,
Because the knob automatically resets the temperature to the set temperature, my cold body absorbed heat and the temperature dropped, making me feel lukewarm.

The present invention overcomes the above-mentioned problems and relates to a heating device for sleeping that allows comfortable heating at all times.

Means for Solving the Problems In view of the above-mentioned problems, the present invention detects when a human body enters the bed and automatically returns from the bullet set temperature to the knob set temperature, which operates using the heat generated by the human body entering the bed. It is equipped with a thermostat to

In operation, by forming an EUI, the present invention utilizes the heat of the human body to operate the thermostat, and uses its detection output to automatically return the temperature from the high temperature setting to the knob setting temperature.

EXAMPLE Hereinafter, one embodiment of the present invention will be explained in detail based on the drawings. Fig. 1 is a plan view of an electric blanket in an embodiment of the sleeping heating device of the present invention, and shows the wires connected to the blanket body 1. A thermos cloth 7) 4 for detecting human body temperature is wired to the chest area of such a blanket body 1, which has a heater wire 2 and a cord opening case 3 at the end of the heater wire 2, and the wire is connected to the cord opening case 3. It is electrically connected to the controller 5.

FIG. 2 shows the structure of a thermostand 4 that is wired to the chest area of the blanket body 1 and detects the body temperature of the human body. The blanket body 1 has a bag-like structure, and a thermostat 4 is installed in the bag.
This is the wiring. The thermostat 4 has contacts 6 that become conductive when a predetermined temperature is reached, and lead wires 7 for electrically connecting them.

FIG. 3 is a block diagram of the same circuit, in which 7 is a power source, and in series with the power source 7 are a power switch 8, a heater 2, and a main control element 9. Also, in parallel with the power supply 7, a control circuit DC power supply circuit 10, a temperature detection circuit 11. Temperature control circuit 1
2 and a bed entry detection circuit 13 that detects the entry of a human body into the bed using heat, and the temperature is automatically switched from the bullet set temperature to the knob set temperature based on the detection output.

In the above configuration, the variable resistor 14 and the short-circuiting transistor 15 in the control block diagram shown in FIG. When a person goes to bed, the thermostat 4 wired to the chest area of the blanket body 1 is activated by the heat of the human body
is heated and turns on. This thermostat 4
The bed entry detection circuit 13 that detects whether the temperature is on operates and the transistor 15 that short-circuits the variable resistor 14 is turned on, and the temperature is automatically returned to the temperature set in advance as a comfortable mouth temperature.

In addition to the effects of the invention, the sleeping warming device of the present invention provides the following effects. In other words, in Electric Town, the correct way to use sleeping heating devices such as blankets is generally to pre-energize them on the "strong" scale, and it feels like they are insufficient without preheating. In contrast, the present invention is configured to automatically return from the "strong" set temperature to the set temperature using the bed entry detector, which eliminates the trouble of forgetting preheating and resetting the knob after the preheating. This solves problems such as dryness, dryness, and low-temperature burns.

[Brief explanation of the drawing]

FIG. 1 is a groove diagram of an electric blanket according to an embodiment of the present invention. FIG. 2 is a partial side sectional view of the chest area of the blanket body, FIG. 3 is a block diagram of the opening control circuit, and FIG. 4 is a temperature characteristic diagram of a conventional electric blanket. 1...Blanket body, 2...Heater%4.
...Thermostat %5 ... Controller, 8 ... Power switch, 9 ... Main control element, 11 ... Temperature detection circuit, 12. ...
...Temperature control circuit, 13...Bed entry detection circuit, 1
4...Transistor for variable paper Fcu, 1s... Name of agent: Patent attorney Toshio Nakao and one other person? −
Ichiichita Figure 4 Value Kame Blind Interval (Ser)

Claims (2)

[Claims] (1) A heater wire provided on the main body, a setting means for setting the temperature of the main body, a control device for controlling power supply to the heater so that the temperature of the main body becomes a set value, A strong setting means for setting a strong temperature regardless of the setting value of the setting means and a thermostat for detecting the temperature of the main body are provided, and the main body temperature is automatically returned from the strong setting temperature to the set temperature by a detection signal from the thermostat. A warming device for sleeping, comprising a return means for controlling power supply to a heater. (2) The heating device for sleeping according to claim 1, wherein the thermostat is provided at the shoulder portion of the blanket body.