JPH0339394B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a control device for an electric blanket comprising a plurality of electric heaters.

BACKGROUND ART As shown in FIG. 4, a conventional electric blanket of this type includes a blanket body 3 provided with a plurality of electric heaters 1 and a temperature detection means 2 for detecting the temperature of the electric heaters 1; a temperature setting means 4 for setting a temperature of 1; a heater switching means 7 for switching the heater to be energized according to the user's preference; 4 and a control means 8 for controlling energization to the electric heater based on the difference in signals from the temperature detection means 2.

Problems to be Solved by the Invention However, with the above configuration, when sleeping in a cold room, the temperature of the entire bedding and blanket is low and you feel cold when you go to bed. When the heat is warmed up, it is necessary to switch the heaters by energizing only the specific heaters to be warmed and stopping the energization of unnecessary heaters, which is very time consuming and has the problem that it is easy to forget to switch the heaters.

Furthermore, if you go to bed with only a specific part of the heater energized when you go to bed, and the room temperature has dropped significantly since you went to bed, you may feel cold because the temperature of the entire blanket will drop in conjunction with the room temperature.

The present invention solves such conventional problems,
The purpose is to detect the room temperature and switch the heater depending on the room temperature.

Means for Solving the Problems In order to solve the above problems, the electric blanket of the present invention includes a blanket body provided with a plurality of electric heaters and a temperature detection means for detecting the temperature of the electric heaters; A temperature setting means for setting the temperature of the heater, a room temperature detection means for detecting the room temperature at which you sleep, and a heater that automatically switches energization to the electric heater based on a signal from the temperature detection means and a signal from the room temperature detection means. An electric blanket comprising: a switching means; and a control means for controlling energization to the heater based on a difference between the temperature detecting means and the temperature setting means in the electric heater that is energized in response to a signal from the heater switching means. .

Effects According to the present invention, with the above-described configuration, the heaters to be energized are automatically switched depending on the room temperature, and when the room temperature is high, only a specific heater is energized, and when the room temperature is low, more heaters are energized. Therefore, you can sleep in comfortable conditions even when the room temperature fluctuates greatly and even throughout the year.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings FIGS. 1 to 3.

In FIGS. 1 and 2, a plurality of electric heaters 1 and temperature detection means 2 for directly or indirectly detecting the temperature of the electric heaters 1 are disposed on the blanket body 3. A temperature setting means 4 that sets the temperature, a room temperature detection means 6 that detects the room temperature at which you sleep, and when the temperature of the blanket reaches a certain temperature or more according to a signal from the temperature detection means 2, electricity is turned on by a signal from the room temperature detection means 6. heater switching means 7 which determines which heater to use and switches the heater; and heater switching means 7 which determines which heater to use and switches the heater; This is an electric blanket composed of a control means 8 for controlling energization to the electric blanket.

In the above configuration, the operation of an embodiment of the present invention will be explained using FIG. 3. For example, as shown in FIG.
C. In the case of an electric blanket divided into four parts with a peripheral part 1D,
First, when the power is turned on, all heaters start energizing, and the blanket temperature is determined by the signal from temperature detection means 2.
When the temperature reaches T1℃ (the temperature at which you do not feel cold when entering the bed), the heater to be energized is determined based on the signal from the room temperature detection means 6, and the heater switching means 7 automatically determines which heater to energize.
Heater switching is performed by .

In this case, the room temperature is R1℃ or above...peripheral heater R1~R2℃...periphery + feet heater R2~R3℃...periphery + feet + abdomen heater R3℃ or less...all heaters are energized, and the room temperature is Since the heater switches as the temperature drops, it can be used even when the temperature fluctuates wildly throughout the day, even when it gets cold in the morning.The heater switches automatically throughout the year, so there is no need to manually switch the heater as before. You can sleep in a comfortable state without having to do this, which saves you time and effort.

Effects of the Invention As described above, the electric blanket of the present invention provides the following effects.

(1) When the power is turned on, all heaters automatically start energizing, and when the blanket temperature reaches a certain temperature, the heater to be energized is determined based on the room temperature, and the heaters are automatically switched. There is no need to go out of your way to switch the heater when the temperature warms up, saving you time and effort.

(2) When you go to bed, the entire blanket is warm and comfortable so you can fall asleep.

(3) Since the heater is switched depending on the room temperature,
To maintain a comfortable bed temperature at all times even when the room temperature fluctuates sharply during the day, especially when the room temperature drops in the morning, so that one can sleep comfortably and there is no need to switch heaters, which saves time and effort.

(4) Also, since the heater can be switched depending on the room temperature throughout the year, you can sleep comfortably, and there is no need to switch the heater, which saves time and effort.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electric blanket according to one embodiment of the present invention, FIG. 2 is an external view of the same, FIG. 3 is a diagram showing the same operation, and FIG. 4 is a block diagram showing a conventional example. 1... Electric heater, 2... Temperature detection means, 3...
... electric blanket body, 4 ... temperature setting means, 6 ... room temperature detection means, 7 ... heater switching means, 8 ... control means.

Claims (1)

[Claims] 1. A blanket body equipped with a plurality of electric heaters and a temperature detection means for detecting the temperature of the heaters, a temperature setting means for setting the temperature of the electric heater, and a room temperature detection means for detecting the temperature of the room in which you sleep. , a heater switching means for switching to energize a specific heater from the plurality of electric heaters in response to a signal from the temperature sensing means and a signal from the room temperature sensing means; and an electric heater that is energized by the heater switching means. An electric blanket comprising: a control means for controlling energization to the electric heater based on a difference between a signal from the temperature detection means and a signal from the temperature setting means.