JPS63226892A - 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. Hereinafter, a heating device for sleeping that performs such preliminary energization will be described with reference to FIGS. 6 and 7.

In FIG. 6, 1 is the blanket main body, 2 is a heater wire wired to the blanket main body 1, a is a controller with a built-in control device and power supply circuit for controlling the power supply to the heater wire 2, and 4 is the controller 3. This is a temperature control knob attached to the.

Figure 7 shows the temperature characteristics when using an electric blanket.The knob scale is set to "strong" at point a shown in the figure, and the knob is turned on at point 5 after the electricity has been turned on for about an hour, at the same time as entering the bed. The temperature diagram shows the state in which the scale has been reset to the desired position.

Problems to be Solved by the Invention However, with the above configuration, it is necessary to set the scale from the desired position to the desired position every time strong preheating is performed, and then readjust it from the desired position to the desired position once preheating is complete. there were.

However, since electric blankets always require these operations, people often forget to use them and fall asleep in the heat of the day, waking up in the middle of the night because of the heat.

The present invention solves these problems and provides a blanket that has a simple structure and automatically returns to a desired eye level from a strongly preheated state.

Means for Solving the Problems The present invention solves the problems of the prior art, and includes a displacement sensor that detects the entry of a human body into the bed using vibration so that the knob automatically returns to the position of the scale when the human body enters the bed. It is equipped with a sensor.

Function: The above-mentioned configuration eliminates the need for an operation for returning from preheating, making it possible to create a heating device that is safe and has good operability.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4.

Figures 1 and 2 show a configuration in which an in-bed detector is inserted into the cord opening in an embodiment of the sleeping warming device of the present invention, and shows a mold of the heater 2 wired to the blanket fabric 1. 7 and a displacement sensor 8 for detecting bed entry is incorporated into the blanket body side through a cord opening case 5 so that the displacement sensor 8 and the terminal 9 of the molded portion 7 of the heater 2 are electrically connected to the connector body 6. . In this embodiment, as shown in FIG. 2, the metal ball 10 moves inside the displacement sensor 8 to turn on and off electrically. This situation is shown in FIG. 3, where a indicates the on state and blc indicates the off state.

FIG. 4 shows the applied circuit configuration of this embodiment. In the diagram, 11 is a power supply, and a power switch 12 is connected in series to the power supply 11.
There are a heater 2 and a main control element 13.

In addition, a DC power supply circuit 14 for a control circuit is connected in parallel to the power supply 11.
There is a temperature detection circuit 15, a temperature control circuit 16, and a displacement sensor 8 that detects when a human body enters the bed, and the detection output of the displacement sensor 8 automatically switches from the strong preheating mode to the knob set temperature.

In the above configuration, when the power is turned on, the variable resistor 17 and the shorting transistor 18 in the control block diagram shown in FIG. 4 are turned on, automatically setting the "strong" scale and increasing the temperature. It is something. At that point, the temperature control knob 4 of the controller 3 is set to a desired knob position that makes the user feel comfortable while sleeping. In this way, preliminary energization is started in a state equivalent to automatically setting the "strong" scale at the same time as the power is turned on, and after that, the displacement when entering the bed is detected by the displacement sensor 8, and the variable resistor 17 is short-circuited. This opens the transistor 18 that had been in use and automatically returns the temperature to the desired temperature set by the temperature control knob 4.

This configuration eliminates the hassle of forgetting to preheat, repeatedly setting the "strong" scale for preheating, and setting the desired scale after preheating, and the risk of low-temperature burns caused by forgetting to turn off preheat. effective.

In the above embodiment, an example was shown in which the displacement sensor was incorporated into the main body cord opening, but the same effect can be obtained by incorporating the displacement sensor into either the connector body or the main body. As for the sensor for detecting vibration, this embodiment shows an example using a metal ball, but in addition, a contact 20 is provided on a spring plate 19 as shown in FIG. 5a, and a pendulum 21 is attached to one side of the contact 20. A similar effect can be obtained with a device in which the contacts 20 are turned on and off by the vibration, or with a sensor shown in FIG. 5, in which mercury 23 is placed in a glass tube 22 and the on/off state is detected by the conduction.

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, it is generally said that the correct way to use heating equipment for sleeping such as blankets is to pre-energize them with a "high" setting, and I feel that pre-heating them is not enough. It is something.

In contrast, the present invention is configured to automatically return from the bullet set temperature to the knob set temperature using a displacement sensor, so there is no need to worry about changing the preheat setting or resetting the knob scale after preheating. This eliminates the problem of going to bed in a preheated state and becoming hot and uncomfortable.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the main body cord opening of a sleeping warming device according to an embodiment of the present invention, Fig. 2 is a plane cross-sectional view of the main body cord drawer portion, and Fig. 3 is a state diagram of the same displacement sensor. Fig. 4 is a block diagram of the control circuit, Fig. 5 (a), Φ) is a plan view of the displacement sensor of the embodiment in the same place, Fig. 6 (a) is a block diagram of the conventional electric town blanket, Fig. 6 Figure ('b) is a perspective view of the same essential part, and Figure 7 is a temperature characteristic diagram when manually preheating is performed in a conventional example and the temperature is lowered to a desired scale after one hour. 1...Blanket body, 2...Heater, 3.
... Controller, 4 ... Temperature adjustment knob, 5 ... Cord opening case, 6 ... Connector body, 7 ... Mold part, 8・・・・・・
...Displacement sensor, 9...Terminal, 10. River...
Metal pole, 11. River...Power supply, 12. Mountain...Power switch, 13... Main control element, 14...
DC power supply circuit, 16...Temperature detection circuit, 16.
...Temperature control circuit, 17...Variable resistor, 18...Transistor, 19...
Spring plate, 20... Contact, 21... Pencil, 22... Glass tube, 23... Mercury. Name of agent: Patent attorney Satoshi Nakao, male and 1 other person Rinke 10-Kin 1. f-le Fig. 2 6 - Connector body Fig. 3, l b cU Fig. 4 2 - Heater 181'l & Fig. 5 (Q) Mountain list\-111i (b No. 7) 01 2 34E6711 Energized vF failure

Claims (2)

[Claims] (1) A main body, a heater wire provided on the main body, a first control device that controls power supply to the heater so that the temperature of the main body becomes a set value, and a displacement sensor that detects vibration, A heating device for sleeping, comprising a second control device that controls power supply to the heater so that the temperature of the main body is automatically returned from the strong setting temperature to the knob setting temperature based on the detection signal of the displacement sensor. (2) The sleeping heating device according to claim 1, wherein the displacement sensor is housed in the cord opening of the blanket main body.