JPS6229703B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to forced air bedding in which air is blown onto the mat from a blower body containing a heater and is blown out from the surface of the mat.

Generally, during the winter season, even if you put your body into bed on a cold night, your own body temperature will not warm the bedclothes, making it difficult to fall asleep. Therefore, heating appliances such as electric blankets and electric hot springs are used as needed, but these heating appliances have a small heat capacity and therefore have the disadvantage that the initial temperature rises slowly.

The present invention was made in view of the above points, and an object of the present invention is to provide bedding that is suitable as a heating device with a large heat capacity and at the same time allows a comfortable sleep.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a blower body, and 2 a mat capable of forced ventilation, which is connected to the blower body 1 via a flexible connecting hose 3. A controller 4 includes a built-in circuit for controlling the operation of the blower body 1, and is connected to the blower body through a cable 5.
The blower main body 1 includes a blower 6 as shown in FIG.
A heater 7 installed in this air passage, and power source drive circuits 8 and 9 for these air blowers and the heater are built in. The entire mat 2 is covered with a breathable fabric 10, and inside it is a base 11 at the bottom,
A bag 12 whose lower surface is made of non-breathable cloth and whose upper surface is made of breathable cloth is stored in the upper part of this base body, and the inside of this bag is made of a breathable foam and a large number of bags are formed on the upper surface. Matsutto 13 with unevenness formed
is stored.

Therefore, the air from the blower 6 is sent into the concavo-convex mat 13 via the connecting hose 3, flows through the concave portions while being dispersed, and is blown out from the top surface of the bag 10. At this time, when the heater 7 is energized, For example, the wind becomes warm air and is sent to the uneven mat 13. 14 is a sensor installed inside the uneven mat 13 to detect the air temperature inside the mat, and 15 is an air temperature sensor installed near the outlet of the connecting hose 3. These two sensors are connected to the heater drive circuit 9 and the blower drive. It is connected to the input side of the control circuit 16 of the circuit 8 . The control circuit 16 has a circuit configuration as shown in FIG. 4, and 17 is a microcomputer (for example, TMS-2370), and a resistor 18, a mat sensor 14, and a resistor 19 are connected to terminals _J4 and _J8 as voltage analog signals. Inputs are input from each circuit of the air temperature sensor 15, and the stable ratio DC power supply 20, and the analog signal as this input is A/D converted and sent to terminals _R12 and _R13.
A control signal is sent from the air blower drive circuit 8 to the heater drive circuit 9. 21 is a Zener diode, which is connected in series with resistor 22 and extracts a voltage (-5V) from V _REF . Reference numeral 23 denotes an oscillation circuit which performs time counting by frequency division in order to control the heater energization time and the blower drive time. 24 is the warm-up switch,
25 is a cool breeze switch. In addition, 26 and 27 are the microcomputer 17 and the blower drive circuit 8,
This is a photocoupler connected to the heater drive circuit 9.

The operation in the above configuration will be explained. When the heating switch 24 is closed, the heater 7 is first energized,
After a delay of several seconds, the blower 6 enters the operating state. This delay time is counted by frequency division of the oscillation circuit 23. At the same time, Matsuto sensor 14 and wind temperature sensor 1
The input signal from 5 is scanned at regular intervals,
The wind temperature remains constant regardless of the outside temperature (for example, 65
Warm air is fed into the mat 2 at a certain air volume (for example, about 0.5 m ³ /min) until the internal temperature of the mat reaches a constant temperature (for example, 40 °C). At this time, microcomputer 1
7 receives the signal from the air temperature sensor 15 and connects the terminal
An output signal is output from R ₁₃ to operate the heater drive circuit 9, and the energization rate to the heater 7 is increased or decreased so that the air blowing temperature reaches the set value of 65°C. When the temperature inside the mat reaches 40℃, the first step is completed and the second step is completed.
Move to step. In this second step, energization of the heater 7, operation of the blower 6, and stopping thereof are repeated for a certain period of time, for example, every 20 minutes. The air volume at this time is lower than the air volume at the beginning of operation, about 0.4 m ³ /min, and the air temperature is 0 to 10 degrees C higher than the preset internal temperature of the pine. The mat temperature is controlled to the set temperature. Then, after the 20 minutes have elapsed, the power supply to the heater 7 is stopped, and then, after a certain period of time (5 seconds), the blower 6 is stopped. Then, 20 minutes after this stop, electricity is started to be applied to the heater 7, and after a certain period of time, the blower 6 starts operating to supply warm air at a predetermined temperature into the mat. In this way, in the heating mode, the repeated operation of running for 20 minutes and stopping for 20 minutes continues until the heating switch 24 is opened. Note that by operating only the blower 6, cool air can be sent to the pine 2, so it is particularly suitable for use in the summer.

In this way, in the present invention, the heater and the blower are operated continuously until the mat temperature reaches a predetermined temperature, and after reaching the predetermined temperature, they are turned on and off at regular intervals. Immediately after, the mat temperature immediately rises to the specified temperature,
Moreover, the hot air is blown out to envelop the body, providing a comfortable heating effect, and furthermore, the warm air is blown out intermittently from the mat to provide a comfortable sleep effect. It is. During sleep, cold air does not blow out from the mat, and when the hot air supply is stopped,
Since the heater shuts down before the blower, problems such as heat buildup inside the blower are eliminated.

As described above, according to the present invention, it is possible to provide the user with a comfortable sleep effect and to maintain the safety of the device especially as a heater during sleep.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a bedding showing an embodiment of the present invention, Fig. 2 is a cutaway perspective view of the essential parts, Fig. 3 is a diagram of the same principle, Fig. 4 is a circuit diagram of the same, and Fig. 5 is a diagram of the same principle. is the same flowchart. 1...Blower body, 2...Matsuto, 6...Blower, 7...Heater.

Claims (1)

[Claims] 1 A blower body with a built-in heater and blower,
The heater and the blower are continuously operated until the temperature of the mat reaches a predetermined temperature from the initial temperature, and after the mat reaches the predetermined temperature. The heater repeatedly starts and stops over a certain period of time, and when the heater starts running, the heater is energized before the blower, and when it stops, the heater is energized before the blower stops. Forced air bedding characterized by: