JPS62143381A - Electric blanket - 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] Industrial applications The present invention relates to an electric blanket control device.

BACKGROUND ART As shown in FIG. 6, a conventional electric blanket of this type includes a blanket body 3 provided with an electric heater 1 and temperature detection means 2 for detecting the temperature of the electric heater, and a temperature of the electric heater is set. A temperature setting means 4, a preheating switch 10 that starts preheating at a high temperature setting, a timer 9, and a setting that returns the high temperature setting to the temperature preset by the lhA degree setting means at the time set by the timer 9. The electric blanket was equipped with a changing means 8 and a control means 7 that controls the energization of the electric heater based on the temperature detected by the temperature detecting means 2 and a signal from the setting changing means 8.

Problems to be Solved by the Invention In the conventional system, if there is a discrepancy between the time set on the timer and the actual bedtime, the bed temperature becomes inappropriate for falling asleep. In addition, even if the time set on the timer and the actual time you go to bed match, if the room temperature is low when you go to bed, or if your body temperature is low when you go to bed or after getting up on the way to bed. When a person goes to bed, cold air enters the bed and cold nightwear and the human body cool the bed, causing problems such as the temperature of the bed dropping and becoming unsuitable for falling asleep. In addition, due to this decrease in bed temperature, the person who goes to bed has to temporarily raise the setting scale, which causes the patient to fall asleep with the setting scale raised, resulting in hot and uncomfortable sleep. There was a problem.

Means for Solving the Problems The present invention provides a blanket main body in which an electric heater and a temperature detection means for detecting temperature are disposed, and a 1711i of the electric heater.
A to determine the degree α! a degree setting means, a person detection means for determining the presence or absence of a human body, a setting correction means for correcting the temperature setting based on signals from the temperature detection means, the temperature setting means, and the human body detection means; and the temperature detection means. The electric blanket is provided with a control means for controlling energization to the heater based on a difference between a signal from the means and a signal from the setting correction means.

Effect With this configuration, when the power is turned on, preheating is started at a high temperature setting regardless of the preset return time.When it is detected that the person is going to bed by a signal from the heating means, the setting correction means starts preheating. A correction value for a set temperature suitable for falling asleep is calculated from the heater humidity behind the bed and the rate of change in heater temperature, and the heater is energized based on the correction value. This correction operation continues for a certain period of time, and then the temperature is automatically returned to the appropriate temperature setting set by the hood setting means. Even when you wake up in the middle of bed for reasons such as going to the bathroom and go back to bed, the setting correction means continues the same correction operation at the time of falling asleep for a certain period of time, and then,
The temperature is automatically returned to the appropriate temperature setting set by the temperature setting means.

In this way, just by turning on the power and setting the t-'L temperature setting, it will self-help from preheating to correcting the appropriate temperature when entering the bed.
After that, the temperature setting changes to the appropriate temperature for sleeping, so there is no difference between the timer set time and the actual time you go to bed, unlike with a timer method. Since the temperature setting suitable for falling asleep is corrected based on the heater temperature and the rate of change of the heater temperature, you can fall asleep in a comfortable state.

In the above embodiment, the heater temperature and the rate of change in the heater temperature are used to calculate the extraction pressure temperature, but in another embodiment, if the blanket temperature is detected by the temperature detection means, the blanket temperature and the rate of change in the heater temperature are used to calculate the correction temperature. It is also possible to use the rate of change.

EXAMPLE Below, Kazuo's example of the present invention will be explained using FIGS. 1 to 3. In the present invention, as shown in FIG. 4, a setting correction means 6 for correcting the set temperature based on the signal from the human body detection means 5 which detects entering the bed and waking up based on the presence or absence of a human body; Controller 1 that controls energization
This is an electric blanket consisting of means 7. When this electric blanket is powered on, it starts preheating at a high temperature setting regardless of the preset temperature set by the temperature setting means 4, and is set when entering the bed is detected by a signal from the human body detection means 5. The correction means 6 calculates a correction value of the set temperature suitable for falling asleep based on the signal from the temperature detection means 2, and outputs the correction value to the control means 7. This correction operation is continued for a certain period of time by a timer section in the setting correcting means 6, and then automatically switches to the delivery setting set by the temperature setting means 4. In this case, is the correction value for the set temperature set? +fi
In positive means 6, refer to Figure 3 (Heater 77 □ 1 degree and the rate of change in the temperature of the heater (or the blanket temperature and the time rate of change in the blanket temperature)
There is no need for too much or too little warmth, which is determined by the combination of the above, and since the correction value is automatically changed to the appropriate temperature setting by the timer, you can fall asleep in a comfortable state without any hassle. In addition, as shown in FIG. 2, even if you get up to go to the toilet or the like in the middle of sleep and then go to bed, if the entering of bed is detected by the signal from the human body detection means 5, the setting correction means 6 will set the fixed time direction. To compensate for temperature,
Even if your body is cold, the bed stays warm (there is no need to change the setting scale like in the past, so you can fall asleep comfortably without any hassle.

As shown in FIG. 4, the human body detection means includes a storage section that stores a signal from the temperature detection means that detects the temperature of the electric blanket, a calculation section that calculates the difference between the stored temperature and the current temperature, and a calculation section that calculates the difference between the stored temperature and the current temperature. and a determination section that determines whether a human body is present or not, based on the presence or absence of a human body. In addition, as another example,
The human body detection means may be a switch button.

As shown in FIG. 5, the setting correction means 6 is operated by a signal from the human body determining means 5, and includes a first calculating means for calculating the time rate of change of the signal from the temperature detecting means 4, and a first calculating means that operates based on a signal from the human body determining means 5. a second calculation means that operates according to the signal from the radiance detection means 2 and the first calculation means 6 and calculates a correction value for the set temperature; It consists of a timer section that maintains the time.

Effect of the invention According to the electric blanket of the present invention, the following effects can be obtained.

(1) When you turn on the power, it automatically starts up at a high temperature setting, and when you go to bed, it temporarily sets a corrected temperature suitable for falling asleep, so you can fall asleep in a comfortable state.

(2) Since the corrected temperature is determined by the combination of the blanket temperature after going to bed and the time rate of change in the blanket temperature,
It's never too much, and you can always fall asleep in a comfortable state.

(3) The extraction pressure temperature setting when entering the bed is automatically switched to the appropriate temperature setting by the timer, so like the timer method,
There is no need to re-set, etc., and it is time-consuming.

(4) Even if you wake up in the middle of sleeping and go back to bed, if the human body detection means detects that you have gone to bed, the setting correction means will temporarily correct the set temperature, allowing you to fall asleep in a comfortable state.
There is no need to raise or lower the set temperature as in the past, and there is no need to worry about feeling too hot while falling asleep, which is the case when falling asleep with the set temperature raised.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an electric blanket according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of the same operation, and Fig. 3 shows the correction value of the set temperature after entering the bed. Fig. 4 is a block diagram showing the human body detection means of the electric blanket, Fig. 5 is a block diagram of the setting fm positive means, Fig. 6 7 is a block diagram of a conventional electric blanket and an operation diagram of FIG. 1... Electric heater, 2... Temperature detection means,
3...Electric blanket body, 4...Temperature setting means, 5...Human body detection means, 6...Setting correction means, 7-...IIJ Control means, 8...Setting change means, 9...Timer, 10...Preheating switch. Name of agent: Patent attorney Toshio Nakao and one other person

Claims (3)

[Claims] (1) A blanket body equipped with an electric heater and a temperature detection means for detecting temperature, a temperature setting means for setting the temperature of the electric heater, and a human body detection means for determining the presence or absence of a human body;
a setting correction means for correcting the temperature setting based on signals from the temperature detection means, the temperature setting means, and the human body detection means; and setting correction means for correcting the temperature setting based on signals from the temperature detection means and the setting correction means; and control means for controlling an electric blanket. (2) The human body detection means includes a storage unit that stores the signal of the temperature detection unit, a calculation unit that calculates the difference between the current temperature and the temperature stored in the storage unit, and a human body detection unit that uses the signal from the calculation unit to calculate the difference between the current temperature and the temperature stored in the storage unit. The electric blanket according to claim 1, comprising a determining section that determines whether the blanket is present or not. (3) The setting correction means includes a first calculating means that operates according to a signal from the human body detecting means and calculates a time change rate of the signal from the temperature detecting means, and a first calculating means that operates according to a signal from the human body detecting means and detects the temperature. and a second calculating means for calculating a correction value for the set temperature based on a signal from the first calculating means, and a timer section for continuing the correction operation performed by the second calculating means for a certain period of time. range 1
Electric blanket as described in section.