JPH07114142B2 - electric blanket - Google Patents

Description

FIELD OF THE INVENTION This invention relates to electric blankets.

2. Description of the Related Art As shown in FIG. 8, a conventional electric blanket of this type has a blanket body 8 in which an electric heater 1 and a temperature detecting means 5 for detecting the temperature of the electric heater 1 are arranged, and an electric blanket of the electric heater 1. The temperature setting means 6 for setting the temperature and the control means 7 for controlling the energization of the electric heater 1 by the temperature detected by the temperature detecting means 5 and the signal from the temperature setting means 6 are provided. In addition to the above configuration, as shown in FIG. 9, a skin temperature detecting unit 8 for detecting the skin temperature of the human body and a skin temperature setting unit 9 for setting a set value of the skin temperature are further provided in the above configuration. Some have been added (for example, JP-A-60-101895). According to the former configuration, when the user sets the temperature by the temperature setting unit 6, the control unit 7 controls the energization of the electric heater 1 so that the temperature is set to the set temperature. Further, in the latter case, when the skin temperature is set, the skin temperature detecting means 8 in contact with the human body detects the skin temperature, and the energization of the electric heater is controlled so that the skin temperature reaches the set value.

Problems to be Solved by the Invention However, the above-mentioned method has the following problems. In other words, in the former, when setting the temperature, the recommended value was clearly stated, but the height, weight, and
Due to the individual characteristics of the user such as age and sex, there is an individual difference in the optimum temperature, so that there is a problem in that each user has to individually seek the optimum temperature by trial and error. Also, in the latter case, it is necessary to set a preset value for the skin temperature in advance.

Therefore, an object of the present invention is to solve such a conventional problem, and to automatically determine the amount of electricity supplied to the electric heater for keeping the inside of the bed at an appropriate temperature based on the amount of metabolism of the user and to supply electricity.

Means for Solving the Problems To achieve this object, the present invention provides a blanket body provided with an electric heater, an input unit for inputting the weight of the user, and a metabolism of the user by a signal from the input unit. A metabolic rate computing means having a computing section for computing the amount, and a control means for controlling energization to the electric heater by a signal from the metabolic rate computing means are provided.

Action In the above-mentioned configuration, the electric blanket of the present invention automatically determines the amount of electricity supplied to the electric heater for keeping the inside of the bed at an appropriate temperature when the metabolic amount is calculated from the weight input by the user, and the amount is passed. Has the effect of.

EXAMPLES Examples of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a block diagram of an electric blanket according to the first embodiment of the present invention. In the figure, 1 is an electric heater, and 2 is a blanket body in which the electric heater 1 is disposed. Reference numeral 3 is a metabolic rate computing means for computing the metabolic rate of the user, which is composed of a computing section 3b for computing the metabolic rate of the user based on a signal from the input section 3a for inputting the weight of the user. Reference numeral 4 is a control means for controlling the energization of the electric heater 1 by a signal from the metabolic rate calculation means 3.

In the above configuration, when the weight of the user is input through the input unit 3a, the metabolic rate is calculated by the calculation unit 3b. As the arithmetic expression in this case, for example, the following expression may be referred to.

M = 2.334W ^0.78 GaIvao (1948) Here, M is a metabolic rate (kcal / h) and W is a body weight (kg). The value obtained by subtracting the amount of heat released by respiration from this value is the net metabolic rate. The amount of electricity supplied to the electric heater 1 is calculated by the control means 4 based on the relationship shown in FIG.

In the present embodiment, the metabolic rate was calculated from the body weight, but the metabolic rate may be calculated based on the height / age, sex, etc. in addition to the body weight.

By the above-mentioned action, the amount of electricity supplied to the electric heater, that is, the amount of heating by the electric blanket is determined according to the amount of metabolism of the user, and the electricity supply is controlled. Therefore, each user must individually find the appropriate temperature by trial and error. There is no such thing, and you can enjoy a comfortable sleep.

Next, the control means in the second embodiment of the present invention will be explained based on FIG. 3 and FIG. In FIG. 3, the difference from the embodiment is that the control means 4 uses the sleep stage determination part 4a for determining the sleep stage, the signal from the metabolic rate computing means 3 and the signal from the sleep stage determination part 4a to generate an electric heater. It is composed of a first control unit 4b for controlling energization to the.

During sleep, the metabolic rate is said to change depending on the sleep stage (eg, Sapiro et al. (1984)). Therefore,
In the above configuration, when the sleep stage determination unit 4a determines the sleep stage, the first setting calculation unit 4b corrects the metabolic rate as shown in FIG. 4 according to the sleep stage at that time, and the relationship shown in FIG. The energization amount is calculated based on Therefore, it is possible to perform detailed energization control according to the sleep stage.

The control means in the third embodiment of the present invention will be described with reference to FIGS. 5 and 6. 5 is different from the above embodiment in that the control means 4 has a room temperature detecting section 4c for detecting room temperature, a signal from the metabolic rate calculating means 3 and a room temperature detecting section.
The 2nd which controls energization to the electric heater by the signal from 4c
And the control unit 4d.

In the above structure, when the room temperature detecting unit 4c detects the room temperature, the second control unit 4d calculates the energization amount according to the room temperature at that time according to the relationship shown in FIG. Therefore, it is possible to perform fine energization control according to the room temperature.

As described above, according to the electric blanket of the present invention, the energization amount to the electric heater, that is, the heating amount by the electric blanket is determined according to the metabolism amount of the user, and the energization is controlled. You don't have to find your suitable temperature by trial and error, and you can enjoy a comfortable sleep.

[Brief description of drawings]

FIG. 1 is a block diagram of an electric blanket in one embodiment of the present invention, FIG. 2 is a diagram showing a relationship between an energization amount and a metabolic amount, and FIG. 3 is a block of a control means in the second embodiment of the present invention. 4 and 5 are diagrams showing the relationship between metabolic rate and sleep stage, and FIG.
FIG. 6 is a block diagram of the control means in the third embodiment of the present invention, and FIG. 6 is a diagram showing the relationship between the amount of electricity passed, the amount of metabolism and room temperature,
7 and 8 are block diagrams of conventional electric blankets. 1 ... Electric heater, 2 ... Blanket body, 3 ... Metabolism calculation means, 3a ... Input section, 3b ... Calculation section, 4 ... Control means,
4a ... Sleep stage determination unit, 4b ... First setting calculation unit, 4c ...
... room temperature detection means, 4d ... second setting calculation section, 5 ... temperature detection means, 6 ... temperature setting means, 7 ... control means, 8 ...
… Skin temperature detecting means, 9 …… Skin temperature setting means, 10 …… Control means.

Claims (3)

[Claims] 1. A metabolic rate computing means having a blanket body provided with an electric heater, an input section for inputting a user's weight, and a computing section for computing a user's metabolic rate based on a signal from the input section. An electric blanket comprising: and a control unit that controls energization of the electric heater according to a signal from the metabolic rate calculation unit. 2. A first control unit for controlling energization to an electric heater by a sleep stage determination unit for determining a sleep stage and a signal from the metabolic rate computing unit and a signal from the sleep stage determination unit. The electric blanket according to claim 1, which comprises: 3. The control means comprises a room temperature detecting section for detecting room temperature, and a second control section for controlling energization of an electric heater by a signal from the metabolic rate calculating means and a signal from the room temperature detecting section. The electric blanket according to claim 1.