JPS60220590A - Electric carpet - 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] Fields of application of industry-I The present invention relates to a method of controlling an electric blanket.

Structure of the conventional example and its problems As shown in FIG. The temperature of the blanket body 1 is kept constant by detecting it with the detection line 3 and controlling the amount of electricity supplied to the electric heater 2 by the controller 4 based on the detection result and the set temperature preset by the user. However, if the user's clothing or other blankets between the blanket body 1 and the user are different, the amount of heat radiated from the human body will also change accordingly. Thread,
If the set temperature is the same, thick clothes will make you feel hot and thin clothes will make you feel cold and uncomfortable, and in order to solve this problem, you will have to change the settings each time, making it inconvenient to use. was.

OBJECTIVES OF THE INVENTION The present invention aims to solve these conventional problems and aims to increase comfort during sleep by 11'10' and improve usability.

Structure of the Invention To achieve this object, the present invention provides a blanket provided with an electric heater, a heat flow detection means for detecting heat flow in the blanket,
A control device is provided for controlling the amount of electricity supplied to the electric heater based on the output of the heat flow detection means.

According to this configuration, by controlling the amount of electricity applied to the electric heater according to the heat flow of the blanket, heat is radiated from the human body even if the clothing conditions or the distance between the user and the blanket on the blanket body are different. It has the effect of being able to maintain a constant value.

Description of Embodiment 1 An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In FIG. 2, a blanket body 1, an electric heater 2, a controller 4,
A heat flow sensor 5 as a heat flow detection means is provided in the blanket body 1.

FIG. 3 is a block diagram of the control device 6 in the controller 4. As shown in FIG.

A setting section 7 where the user makes desired settings, and a comparator 8 that compares the set value of the setting section 7 with the output from the heat flow sensor 5.
, an electric heat control circuit 9 that controls the amount of current supplied to the electric heater 2 based on the results of the comparator 8.

When the amount of clothing is changed in the above configuration, if control is performed to keep the heat flow constant, the relationship between the amount of clothing and the amount of heat radiated from the human body is as shown by the solid line a in Figure 4, even if the amount of clothing is changed. The amount of heat radiated from the human body remains constant and the sensation of warmth does not change. The broken line shows an example when the temperature of a conventional blanket is kept constant. In this case, as the amount of clothing increases, the amount of heat radiated from the human body decreases. It becomes uncomfortable. In order to solve this problem, it is necessary to change the settings in advance according to the amount of clothing worn before going to bed, but this setting is difficult and troublesome for general users, making it very inconvenient to use.

Therefore, this embodiment is very easy to use, as it can be used comfortably without changing the set values even if the clothing conditions change.

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

Since the heat flow detection means detects the heat flow of the blanket and controls the amount of current applied to the electric heater based on the detected heat flow, the amount of heat radiated from the human body can be controlled even if the clothing conditions or other blankets between the user and the blanket are different. Since it is possible to keep the value constant, it can be used comfortably without changing the set value once set, making it extremely easy to use.

[Brief explanation of the drawing]

Figure 1 is a block diagram of a conventional electric blanket, Figure 2 is a diagram of an electric blanket according to an embodiment of Kihatsu IJ, Figure 3 is a block diagram of the control device in the same electric blanket, and Figure 4 is a block diagram of the same electric blanket. and fi7 clothing when used in a conventional electric blanket 4. FIG. 3 is a characteristic comparison diagram showing the relationship between -,l and MS L-j,' emitted from the human body. 1...Blanket body, 2...Electric heater,
5... Heat flow sensor as heat flow detection means, 6.
·····Control device. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure No. 4 Illustration fee −

Claims (2)

[Claims] (1) A blanket equipped with an electric heater, a heat flow detection means for detecting the heat flow of the blanket described in 0 [I, and a control device that controls the amount of electricity supplied to the electric heat heater described in 111 based on the output of the heat flow detection means described in 11r1. An electric blanket with (2) The electric blanket according to claim 1, wherein the control device controls the amount of current applied to the electric heater to make the heat flow of the blanket, which is detected by the A flow detection means, constant over time.