JPH024304A - Temperature control device in bed - Google Patents

Abstract

PURPOSE:To enable having the satisfactory sleeping by controlling a temperature in a bed with matching to a diurnal rhythm during the sleeping. CONSTITUTION:For an electric blanket 10, a heater 11 and a temperature sensor 12, which can detect the temperature in the bed, are arranged and connected to a heater control circuit 13. The heater control circuit 13 executes feedback control to the heater 11 based on the output of the temperature sensor 12 so that the temperature in the bed can be a target value to be set from an external part. The target value in the beginning of the sleeping is given from a beginning of sleeping temperature setting part 21 through timer contacts 22 and 23 and a user can set the temperature to a preferable temperature. Next, the target value during the sleeping is given from a temperature pattern storing circuit 24 and the temperature is changed based on a time which is given from a timer part 26. Further, the target value at the time of wake-up is given from a wake-up temperature setting part 27. Then, when the time of the timer part 26 goes to be a time which is set by a wake-up previous time setting part 30, a timer relay 28 switches the timer contact 23 based on a time to be set by a wake-up time setting part 29.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temperature control device for a bed that adjusts the temperature inside the bed to provide a high quality sleep environment.

[Prior Art 1] It is generally known that if the temperature in the bed is not appropriate, it takes time to fall asleep and it is difficult to get a good night's sleep. In winter, people layer their beds with comforters and blankets to keep their beds at a comfortable temperature, but this puts a heavy burden on their respiratory systems and brains. As temperature variable means for ensuring a comfortable temperature for sleeping without putting such a burden on the body, there are conventionally known temperature variable means such as foot blankets, electric blankets, electric bed blankets, and air conditioners. Most of these temperature variable means control the temperature to the extent that it remains constant, and air conditioners only provide simple control such as gradually increasing the temperature after going to sleep or starting it before waking up. The current situation is that there is no such thing.

[Problems to be Solved by the Invention] Among these temperature variable means, especially electric bed blankets, if the temperature setting is incorrect, not only will it be impossible to get a deep sleep, but
The problem is that the diurnal rhythm of body temperature is disrupted.When the circadian rhythm is disrupted, symptoms such as difficulty in getting rid of fatigue appear, such as those who work at night or are jet-lagged, and their body temperature during the day. activities may also be affected. In more extreme cases, it can cause delayed salivation phase syndrome,
It can even lead to children refusing to go to school, refusing to go to work, and even causing domestic violence.

The purpose of the present invention is to solve the above-mentioned problems, and by adjusting the temperature inside the bed according to the diurnal rhythm during sleep, it is possible to obtain good quality sleep. The present invention aims to provide a temperature control device.

[! ! Means for Solving the Problems] In order to achieve the above object, the present invention includes a temperature variable means for varying the temperature inside the bed, a temperature sensor for detecting the temperature inside the bed, and a temperature sensor that changes the temperature inside the bed, and and a control section that performs feedback control of the temperature variable means based on the output of the temperature sensor so as to correspond to the diurnal rhythm of body temperature.

[Function] According to the above configuration, the temperature in the bed is adjusted to match the diurnal rhythm of the body's body temperature during sleep, so it is possible to obtain high quality sleep and the disruption of the body's diurnal rhythm. can be prevented.

[Example 1] In the following explanation, an example will be shown in which the temperature variable means is an electric blanket, but the present invention is not limited to this, and as long as the temperature inside the bed can be varied, an air conditioner or the like can also be used. Technical ideas can be applied.

As shown in FIG. 1, the electric blanket 10 is provided with a heater 11 as a heating means and a temperature sensor 12 that can detect the temperature inside the bed. Heater 11 and temperature sensor 1
2 is connected to a heater control circuit 13, and the heater control circuit 13 performs feedback control of the heater 11 based on the output of the temperature sensor 12 so that the temperature inside the bed reaches a target value set from the outside. It looks like this.

The target value of the heater control circuit 13 is given in three stages: when falling asleep, during sleep, and when waking up.

First, a target value at the time of falling asleep is given from the falling asleep temperature setting section 21 via a pair of timer contacts 22 and 23. That is, in winter, if the temperature in the bed is low, it is too cold to fall asleep, and the time from going to bed to falling asleep becomes longer, making it difficult to fall asleep smoothly. Therefore,
The inside of the bed is heated by the heater 11, and the temperature required at this time is the temperature inside the bed before heating, the room temperature,
It varies depending on the individual's sensitivity to cold. For example, people with sensitivity to cold are sensitive to cold. Therefore, the sleep onset temperature setting section 21
The temperature can be set to the user's preference. In winter, this temperature is generally set slightly higher than the temperature during sleep.

Next, the target value during sleep is given from the temperature pattern storage circuit 24. The temperature pattern storage circuit 24 and the sleep onset temperature setting section 21 are selectively selected via the timer contact 22, and the timer contact 22 first selects the sleep onset temperature setting section 21, and then selects the sleep onset temperature setting section 21 using the delay timer 25. It can be switched. Here, since it is known that the average time from going to bed to falling asleep is about 17 minutes, the delay timer is set to 25 minutes.
starts when you fall asleep, and 20 to 30 minutes later, timer contact 2
It is set to switch between 2. By the way, the comfortable temperature in the bed during sleep is 33±1 throughout the four seasons.
It has been reported that ℃. Therefore, the temperature pattern storage circuit 24 gives a target value within this temperature range, and changes the temperature in a pattern as shown by the solid line in FIG. 2 based on the time given from the clock section 26. Here, the temperature is controlled according to the person's sleeping time.
It is in the range until 10 o'clock. This temperature change pattern is set to correspond to the human body temperature rhythm shown by the broken line in Figure 2, and by controlling the temperature in this way during sleep, the inside of the bed can be kept at a comfortable temperature. This prevents you from sweating due to being too hot, reduces body movement, and ensures quality sleep.

Here, the diurnal rhythm in Figure 12 will be explained.

Generally, when the room temperature is not controlled, the room temperature is affected by the outside temperature, so the lowest temperature is between 4 and 5 a.m., and the lowest temperature is between 4 and 5 a.m.
The diurnal rhythm of a person's body temperature, which gradually rises later, changes in a similar way to the outside temperature, reaching its lowest between 4 and 5 a.m., then rising, and reaching its highest temperature around 3 p.m.

After that, the temperature shows a pattern of gradually decreasing and then slightly decreasing at the same time as sleep; in other words, the body temperature decreases during sleep. By controlling the temperature in your bed in accordance with this diurnal rhythm of body temperature, you will be able to have a comfortable sleep.

Next, the target value at the time of waking up is given from the waking temperature setting section 27. The wake-up temperature setting section 27 is configured to select between the four other target values and the timer contact 23, and the timer contact 23 initially selects the other target value, and then selects the other target value. The timer relay 28 is switched to select the wake-up temperature setting section 27. The wake-up temperature setting section 27 sets the temperature in the bed higher than the temperature during sleep.
By raising the temperature in your bed before you wake up, you can have a shallow sleep! It leads to sleep or REM sleep. This makes you feel better awake compared to when you wake up from deep non-REM sleep. That is, the timer 28 is controlled by a pre-wake-up time setting section 30 that sets a time approximately 15 minutes before the wake-up time setting section 29 based on the time set by the wake-up time setting section 29, and the clock section 26, When the time on the clock section 26 reaches the time set in the pre-waking time setting section 30, the timer relay 28 is operated to switch the timer contact 23. As a result, it is possible to apply thermal stimulation to the body before waking up, to make the body sleep more lightly, and to feel more awake when the alarm clock wakes it up.

To summarize the above operations, the heater temperature follows the control pattern shown by the solid line in Figure 3.
The temperature is set according to your preference. Next, the temperature is set at about 33 ± 1°C 20 to 30 minutes after bedtime, when it is thought that you will fall asleep, and the temperature gradually decreases to the lowest temperature (about 32°C) around 3 to 4 am. The temperature gradually rises, starting about 15 minutes before it is time to wake up, providing a thermal stimulus to the body. Here, the dotted chain line in Figure 3 indicates the actual temperature in the bed. By setting the temperature above 6, you can smoothly enter the sleep state from going to bed until falling asleep, and during sleep, You can get comfortable, high-quality sleep, and you can get the ideal sleep where you wake up easily when you wake up.

In the above embodiment, the temperature sensor 12 is placed inside the electric blanket 10 along with the heater 11, but the temperature sensor 12 may be placed anywhere as long as it can detect the temperature inside the bed.

[Effects of the Invention] As described above, the present invention includes a temperature variable means that changes the temperature inside the bed, a temperature sensor that detects the temperature inside the bed, and a diurnal rhythm of the body temperature after a predetermined period of sleep. It is equipped with a control unit that performs feedback control of the temperature variable means based on the output of the temperature sensor to correspond to the temperature sensor, and the temperature inside the bed is adjusted to match the diurnal rhythm of the body temperature during sleep. Therefore, obtaining high-quality sleep has the advantage of preventing disruption of the diurnal rhythm of the body.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of the present invention, and FIGS. 2 and 3 are explanatory diagrams of the same operation. DESCRIPTION OF SYMBOLS 10... Electric blanket, 11... Heater, 12... Temperature sensor, 13... Heater control circuit, 21... Sleep onset temperature setting section, 22. 23... Timer contact, 24...
Temperature pattern storage circuit, 25...delay timer, 26.
... Clock section, 27... Wake-up temperature setting section, 28... Timer relay, 29... Wake-up time setting section, 30... Pre-wake-up time setting section. Agent: Patent Attorney Ishi 1) Chief, 7-year-old, 2nd, Jin, Ko, volunteer to write an amendment to the opening procedure on August 5, 1988 1, Display of the case 1988 Patent Application No. 148831 2, Name of the invention In bed Temperature control device 3, relationship with the amendment case Patent applicant address 1048 Kadoma, Kadoma City, Osaka Prefecture
3) Matsushita Electric Works Co., Ltd. Representative Toshio Miyoshi 4 Agent postal code 530 Address 1-12-17-5 Umeda, Kita-ku, Osaka City Date of amendment order 6 Number of claims increased by amendment None 7. The subject of the amendment [11 In the specification of the present application, page 2, line 1, [before respiratory organ J]
For heavy comforters, insert ``. [2] Insert the following sentence next to "You may." on page 9, line 4 of the above. ``In addition, in the above example, we mainly explained the operation in the season when the temperature is low, but in summer, it is better to set the temperature setting at the time of falling asleep and waking up lower than in the case of the above example to smoothly transition to the sleep state. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] (1) A temperature variable means that changes the temperature inside the bed, a temperature sensor that detects the temperature inside the bed, and a temperature sensor that adjusts the output of the temperature sensor to correspond to the diurnal rhythm of the body temperature after a predetermined period of sleep. 1. A temperature control device for a bed, comprising: a control section that performs feedback control of a temperature variable means based on the temperature control unit.