JPH07105262B2 - electric blanket - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a control device for an electric blanket.

2. Description of the Related Art A conventional electric blanket of this kind has a blanket body 3 in which an electric heater 1 and a temperature detecting means 2 for detecting the temperature of the electric heater are arranged as shown in FIG. 4, and the temperature of the electric heater is set. Temperature setting means 4 for turning on and a switch 9 for starting preheating,
An electric blanket having a timer 10 for setting a preheating time, and a control means 8 for controlling energization of an electric heater by a signal from the timer 10 and a temperature detected by the temperature detection means 2 and a signal from the temperature setting means 4. there were. With this configuration, the switch 9 is turned on, the preheating time is set by the timer 10, and the temperature is automatically returned to the proper temperature setting. (For example, the actual Kosho 48
-8176 publication. ) Problems to be Solved by the Invention In the method using the timer as described above, it is necessary to turn on the preheating switch and set the timer, which is very troublesome. Also, if you go to bed earlier than the time when the timer is set, you will not always go to bed at the time when the timer is set, and the high temperature setting remains, so you have to turn off the timer. When the person fell asleep without turning off the timer, the blanket temperature was too high and it was hot and uncomfortable.

The present invention solves such a problem, and an object thereof is to automatically switch from preheating to temperature setting during sleep and to improve comfort.

Means for Solving the Problems In order to solve the above problems, an electric blanket of the present invention includes an electric heater and a blanket main body provided with temperature detecting means for detecting the temperature of the electric heater, and the electric heater. A temperature setting means for setting a first set temperature, an entrance judgment means for detecting and judging that a person has entered the bed, and a first entrance before the entrance of the person is detected by the entrance judgment means. Regardless of the set temperature, the second set temperature higher than the set temperature is set, and when the entry of the person is detected by the entry determination means, the temperature of the electric heater is set to the first set temperature and the first set temperature. When the temperature of the electric heater is higher or higher than the predetermined value, the second set temperature is continued when the temperature is lower than a predetermined value between the second set temperature and the second set temperature. Change the setting to the first set temperature with And a control unit that controls energization to the electric heater based on the difference between the signal of the temperature detection unit and the signal of the setting change unit.

Action According to the present invention having the above-described configuration, the electric blanket is energized at a high temperature set temperature during preheating after power is turned on. If the bed entry determination means determines that a person has entered the bed after reaching a certain temperature in the bed, the high temperature setting during preheating indicates that the bed occupant has set a sleep time preset by the temperature setting means. It is possible to automatically switch to an appropriate temperature setting of your choice, after which the energization of the electric blanket is controlled at that set temperature.

Even if it is determined by the bed entry determination means that a person has entered the bed, if the temperature in the bed at that time is low, power is turned on with the high temperature setting during preheating and the bed reaches a certain temperature (comfort zone). The high temperature setting during preheating automatically switches to the preset optimum temperature setting during sleep.

Example An example of the present invention will be described below with reference to FIGS. 1 to 3. In the present invention, in FIG. 1, an electric heater 1 and a temperature detecting means 2 for detecting the temperature of the electric heater 1 are provided in a blanket body 3, and a user can select a desired temperature of the electric heater 1 (an appropriate temperature). Temperature setting means 4 for setting the setting T2),
An entrance determination means 5 for detecting and judging that a person has entered the bed,
Signal from the bed entry determination means 5 and the temperature detection means 2
The optimum temperature setting (T2) set by the temperature setting means 4 and the high temperature setting (Tmax) used at the time of preheating,
Setting change means 6 and setting change means 6 that are switched by a signal of a predetermined set temperature (T1) of the electric heater 1 which is a value between the high temperature setting (Tmax) and the optimum temperature setting (T2) and the entrance determination temperature 5. And a control means 7 for controlling the energization of the electric heater 1 according to a signal from the temperature detection means 2.

The operation of the present invention will be described with reference to the flowchart of FIG. 2 and FIG. When energization is started with this electric blanket, a high temperature setting (Tmax) is set irrespective of the optimum temperature setting (T2) set by the occupant in advance by the temperature setting means 4 when sleeping.
To start preheating. When a person enters the floor, the entrance determination means 5 detects the entry of the bed. If the temperature of the electric heater wire at this time is equal to or higher than a predetermined set temperature (T1), the high temperature setting (Tma) during preheating is set.
(x) is automatically switched to the desired temperature (suitable temperature setting T2) of the electric heater 1 set by the user.

Also, the temperature inside the bed when entering the bed is low (heater wire temperature is
In case of (T1 or less) (Case2), the heater wire temperature reaches a predetermined set temperature (T1) and the bed is kept in the comfortable temperature range. High temperature setting (Tma
x) Automatically switches to the proper temperature setting (T2). Thereafter, the energizing amount is controlled by the control means at this set temperature. The alternate long and short dash line in Fig. 3 shows the change in the temperature of the electric heater 1 when the temperature is switched to the proper temperature setting (T1) in Case 2, but the rise is slow and it is not comfortable. Will occur. For this reason, you do not have to manually reset the setting scale, and you do not forget to switch to the proper temperature setting and fall asleep. I can sleep in a good state.

Effects of the Invention According to the electric blanket of the present invention, the following effects can be obtained (1) When the power is turned on, the device is automatically started up at a high temperature setting, and when a person enters the bed, the temperature is automatically switched to an appropriate temperature setting for sleep. No need to manually reset the setting scale, and you will not fall asleep because you forget to switch to the proper temperature setting, and you will not be awake in the middle of sleep because it is hot, so you can feel safe and comfortable. I can sleep in.

(2) When the person enters the bed when the temperature inside the bed is low, the high temperature setting is turned on until the temperature inside the bed reaches the comfortable range. You can get a very comfortable feeling with less time to get up and feel discomfort.

[Brief description of drawings]

FIG. 1 is a block diagram of an electric blanket according to an embodiment of the present invention, FIG. 2 is a flow chart of the electric blanket, FIG. 3 is an operation diagram of the electric blanket, and FIG. 4 is a block diagram of a conventional example. . 1 ... Electric heater, 2 ... Temperature detecting means, 3 ... Electric blanket body, 4 ... Temperature setting means, 5 ... Entrance determination means, 6
...... Setting change means, 7 …… control means.

Claims (1)

[Claims] 1. A blanket body provided with an electric heater and temperature detecting means for detecting the temperature of the electric heater, temperature setting means for setting a first set temperature of the electric heater, and a person has entered the bed. And a second set temperature higher than the first set temperature regardless of the first set temperature before the person entering the bed is detected by the bed entry determination means, When the entry of a person is detected by the entry determination means, the temperature of the electric heater is lower than a predetermined value between the first set temperature and the second set temperature. In this case, the second set temperature is continued, and when the temperature of the electric heater is higher than or higher than the predetermined value, or when the temperature of the electric heater is higher than the predetermined value, the setting change unit changes the setting to the first set temperature, and the temperature. Signal of detection means and the setting change means Electric blankets and control means for controlling the energization of the electric heater by the difference between signals.