JP3115154B2 - Bed equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus for adjusting the temperature and humidity in a bed to provide a comfortable sleeping environment.

[0002]

2. Description of the Related Art Generally, the temperature in a bed is controlled by increasing or decreasing bedding such as a futon or a blanket, adjusting the temperature of an electric blanket,
They had to adjust the set temperature of the wall-mounted air conditioner in the bedroom. In addition, humidity control of the bed is performed by drying the bedding on the day or using a futon dryer, and in each case, manual operation is required.

[0003]

When air conditioning is performed by a wall-mounted air conditioner, the temperature distribution and airflow distribution at each location in the bedroom vary, so that it is not necessarily comfortable for a person sleeping on a bed. It did not say that it provided the perfect air conditioning. In addition, although the electric blanket comes into direct contact with the human body, since the change in body temperature due to sleep is not grasped, it has been frequently observed that excessive heating causes sweating to disturb sleep.

[0004] Further, if the humidity control in the bed is neglected, the humidity becomes high and the sleeping comfort is deteriorated. In particular, the bedclothes of bedridden patients have difficulty in hygiene management and have an unpleasant odor, which may adversely affect the mental aspects of patients and caregivers.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a bed apparatus capable of obtaining an environment having a temperature and humidity suitable for a sleeper.

[0006]

Means for Solving the Problems To solve the above problems, a first means of the present invention is a temperature / humidity changing means having a heating means and a blower for changing the temperature and humidity of a bed, A plurality of temperature sensors and humidity sensors for detecting temperature and humidity; and a control unit for performing feedback control of the temperature and humidity changing unit based on outputs of the temperature sensors and the humidity sensors, wherein the control unit detects a temperature detected by the temperature sensor.
Temperature and the rate of temperature rise per hour
The temperature and humidity control is performed by turning off the power .

According to a second aspect of the present invention, in the above-mentioned first aspect, the control section determines that the humidity detected by the humidity sensor is a predetermined value.
If it detects that the humidity is higher than that
Judgment is performed to control the temperature and humidity .

[0008]

[0009]

According to the first means, by measuring the humidity in addition to the temperature by each temperature sensor and the humidity sensor, the state of the bed during sleep including the sweating state can be grasped, and the optimum temperature and humidity environment can be controlled. You can provide comfortable sleep. Further, the inside of the bed can be dried by blowing air to improve the sleeping comfort.

[0010]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a bedding 1 of a bed apparatus is provided with an air passage 3 as an air passage having an outlet 2 to a bed 1a. A blower unit 10 including a heater 4 as a heating means and a blower 5 is connected to the blower passage 3.
Is provided with a suction filter 6, which can change the humidity by sucking the air in the bedroom and blowing out cold or warm air to the bed 1a.

A plurality of temperature sensors 7 and a plurality of humidity sensors 8 are provided on the bed 1a. The heater 4, the temperature sensor 7, the humidity sensor 8, and the hot air blower 5 are electrically connected to a control circuit 9. The control circuit 9 controls the temperature sensor 7 and the humidity so that the temperature and the humidity of the bed 1a become target values. The heater 4 and the blower 5 are feedback-controlled in accordance with the output of the sensor 8.

A temperature sensor 7 and a humidity sensor 8 for detecting the temperature and humidity of the bed 1a are arranged in a line as shown in FIG. It is preferable that the temperature sensor 7 and the humidity sensor 8 are disposed near the back of a human body. The reason is that when the relationship between the temperature distribution in the bed and the skin temperature was examined, it was possible to detect the temperature with the least variation in the skin temperature closest to the skin temperature, which is considered to be due to the large pressurized area by the body. .

When the temperature of the temperature sensor 7 exceeds 30.degree.
When there is an increase of 0.5 ° C. or more per minute, the control circuit 9 determines that the vehicle is in the bed. When it is determined that the vehicle is not occupied, preheating or precooling is performed, and when it is determined that the vehicle is occupied, temperature and humidity control is performed based on input information of the temperature sensor 7 and the humidity sensor 8.

An experiment was performed in which the subject entered the bed 1a in an awake state while being awake, and while the skin temperature of each part was measured, the subjects were asked to report on the sense of warmth, coolness, sweating, and comfort. The temperature correlated well with the thermal sensation of the bed 1a. As for the humidity, when the humidity in the back became 65% RH or more, a report of sweating was found. Further, by arranging the humidity sensor 8 in the same place as the temperature sensor 7, the humidity can be detected while detecting the position of the human body with the temperature sensor 7, so that the influence of the humidity in the bedroom can be prevented, and the humidity change according to the sweating state can be prevented. Can be detected. As the temperature sensor 7, a small thermistor is used, and as the humidity sensor 8, an electric resistance type sensor in which a thin film or fine powder of a semiconductor polymer is vapor-deposited on a ceramic substrate, or expansion and contraction due to humidity change of a nylon ribbon is used. Use a sensor that has been used.

First, at the time of preheating the bed 1a, a target value is input and set in the control circuit 9, so that the output of the temperature sensor 7 of the bed 1a is fed back to operate the blower unit 10 to reach the target temperature. . By inputting the expected bed entry time with the timer, the preheating can be activated from just before the target value reaching time, and the preheating can be performed efficiently.

In the summer of Japan, the temperature is high and the humidity is high, so it is often difficult to sleep. In such a case, the air blow unit 10 is operated while cooling the bedroom. As a result, the cool air is sucked in from the suction filter 6 and blown out from the blow-out hole 2, so that the temperature in the bed 1a can be reduced and dehumidification can be performed, so that an environment where it is easy to sleep can be provided.

When the humidity of the bed 1a exceeds 70% RH,
It feels damp and feels cold when it is cold and cannot sleep comfortably. Therefore, when the humidity sensor 8 detects that the humidity exceeds 70% RH, the blower 5 of the blowing unit 10 is operated to lower the humidity of the bed 1a until the humidity becomes 50% RH.

Further, when platinum and palladium are supported on the surface of the heater 4 of the warm air unit 5 as a catalyst for deodorizing a noble metal, hydrogen sulfide, mercaptan, ammonia, etc., which are considered to be unpleasant odors in the air, are decomposed. Can be deodorized. With this deodorizing catalyst, the unpleasant odor in the bedroom is removed inside the blower unit 10, and the deodorized air is blown to the bed 1a, so that the bed 1a can be kept comfortable. Since the blower unit 10 operates at a high frequency such as pre-cooling, pre-heating, or when the bed is wet, it can respond to humidity and odors in detail.

When a deodorizing catalyst is used, it is necessary to humidify it. However, as shown in FIG. 3, the air sucked from the bedroom is passed through an air passage 3 filled with an adsorbent 11 such as activated carbon. For example, deodorization by adsorption can be performed simultaneously with the operation of the blower 5, and a suction hole (not shown) for actively sucking the air in the bed 1a is provided, and the air in the bed 1a sucked through the suction hole is deodorized. May be configured. The catalyst is added to the heater 4 and the adsorbent 1
1 may be provided.

FIG. 4 shows another embodiment of the present invention, and the blowing unit 1 of the bed apparatus shown in the above embodiment.
The fragrance 12 may be further provided in the air supply path 3 of the zero. It is well known that the fragrance of the fragrance 12 stabilizes the mind, and in particular, bitter orange and linden are said to be scents that calm down emotions and induce sleep. Therefore, if the fragrance 12 having the scent component is packed in a passage such as a tube, the bedding 1 is filled with fragrance when the blower 5 is operated, so that an environment in which the user can easily sleep can be provided. Also,
The fragrance can stabilize the mental state and mask unpleasant odors such as body odor. The same effect was observed when a dried herb was attached to a part of the air duct 3 as a scent component.

[0022]

As described above, according to the present invention, a temperature / humidity changing means for changing the temperature and humidity in a bed with a heating section and a blower, and a plurality of means for detecting the temperature and humidity in the bed. By constructing a bed device including a temperature sensor and a humidity sensor, and a control unit that performs feedback control of the temperature and humidity changing unit based on the output of the sensor, it is possible to provide a climate in a bed that matches the progress of sleep. In addition, by using a blower, the humidity in the bed can always be kept low, and by installing an adsorbent for deodorization in the air passage through which the air in the bed is sucked, or by adding a deodorizing catalyst to the heating section. In addition, it is possible to remove an unpleasant odor of the bed and to provide a comfortable environment in the bed by adding a fragrance with the fragrance.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a bed apparatus according to one embodiment of the present invention.

FIG. 2 is a schematic plan view of the bed device.

FIG. 3 is a schematic diagram of a blowing unit of the bed device.

FIG. 4 is a schematic view of a blower unit according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bedding 1a Bedding 2 Blow-off hole 3 Blow path (air passage) 4 Heater (heating means) 5 Blower 7 Temperature sensor 8 Humidity sensor 9 Control circuit 10 Blow unit 11 Adsorbent 12 Air freshener

──────────────────────────────────────────────────続 き Continuation of the front page (72) Nobuyuki Yoshiike, Inventor 1006 Oaza Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-56-97416 (JP, A) JP-A-3-3 186213 (JP, A) Patent 2924218 (JP, B2) Patent 2596233 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47C 21/04

Claims (2)

(57) [Claims] A temperature / humidity changing means having a heating means and a blower for changing the temperature and humidity of the bed; a plurality of temperature sensors and a humidity sensor for detecting the temperature and humidity of the bed; A control unit for performing feedback control of the temperature and humidity changing unit based on the output of the sensor,
Temperature and humidity based on the rate of temperature rise
Bed apparatus for performing control. 2. The control unit according to claim 1 , wherein the detected humidity of the humidity sensor is a predetermined value.
If it detects that the humidity is higher than that
The bed apparatus according to claim 1, wherein the temperature and humidity control is performed based on the judgment .