JPS63254690A - Bed warmer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heating device for sleeping, such as an electric blanket, which allows a comfortable sleep.

BACKGROUND OF THE INVENTION Conventional electric blankets, etc., have an AC power source 1, a power switch 42, a rectifier circuit 3, and the like as shown in Figure @9. A main body 5 including an air heater 51 and a temperature detection means 52; a temperature detection means 52;
The control circuit 4 controls the electric heater 51 by comparing the detected temperature with the temperature set by the temperature setting means 6.

Moreover, as shown in FIG. 10, the temperature characteristics within the bed vary slightly throughout, but basically, after reaching saturation, a constant temperature state continues. In addition, FIG. 11 is a temperature characteristic diagram inside the bed when used as a preheating means (not shown) to rapidly warm up cold bedding before going to bed.
In the temperature range where the child 1 has finished and settled down, it is the same as in FIG.

Problems that ``Hatsu 1! 1'' aims to solve In such conventional methods, the temperature inside the bed at the time of going to bed and the temperature inside the bed during sleep and during sleep are constant and the same, so the user can My body was cold when I was in bed, and even if it was just the right amount of warmth, I would feel hot when I was sleeping soundly, equivalent to an increase in my temperature.

For this reason, the present invention was developed in response to such problems. The purpose of the present invention is to provide a heating device for sleeping that has a simple configuration and allows a comfortable sleep.

Means for Solving the Problems In order to solve the problems described above, a main body is provided with an electric heater and a temperature detection means for detecting the temperature, and a first body for setting the temperature of the mJ electric baboon. This device is equipped with a temperature setting means, a sleep-starting switch set to lower the temperature set by the first temperature setting means, and a second temperature setting means from evening/timer to υ. Or, it is equipped with a third temperature setting means that increases the temperature when the sleep switch is turned on, and after the time set by the timer has elapsed ("i"
The entire feature is that the temperature does not drop to the temperature set by the temperature setting means.

The reason for the lack of explanation is that when you go to bed in a warmer that has been heated to a certain temperature, is there a sleep-starting switch that triggers your sleep pulse? When turned on, the temperature inside the bed is lowered after a preset time has elapsed, allowing you to get a comfortable night's sleep without feeling uncomfortable after falling asleep.

EXAMPLE An example of the present invention is shown in FIGS. 1, 2, 3, and 4.
This will be explained using figures. In Figure 1, 1 is an AC power supply;
2il-j:rL power switch 3 is a rectifier circuit, 4 is a control circuit with a resistor of 41.45, a comparator 42, and a contin +j43
, an l-transistor 44, and a builisk 46. 5 is the main body, which is connected to an electric heater 51 and a temperature detection means 52; the electric heater 51 is connected to the anode of the buoy risk 46; Each can be connected to the terminal. 6 is a first temperature setting means with a resistance of 61.64,
The thermistor 62, the temperature adjustment variable resistor 63, and the connection point between the thermistor 62 and the temperature adjustment variable resistor 63 are connected to the negative input terminal of the comparator 42, and the configuration up to this point is the same as the conventional one. .

7 is the second temperature setting means; resistors 71, 73, 74;
It consists of a transistor 72, a timer 75, and a sleep switch 76, and a resistor 71 is connected in series with the resistor 64 of the first temperature setting means 6, and is configured to be controlled by turning on and off the transistor 72. It is something.

In the above configuration, the temperature detecting means 52 has a negative impedance characteristic (thread count) such that the impedance is large when the temperature is low, and the impedance is small when the temperature is high. Also thermistor (ambient temperature sensor) 6
2, the impedance has a negative coefficient with respect to the ambient temperature (room temperature).

FIG. 2 is a temperature characteristic diagram within the bed according to the above configuration.

FIG. 3 is a temperature characteristic diagram in the bed when the second temperature setting means is configured in a control circuit (not shown) having a preheating means.

FIG. 4 is an operation timing chart of the first output of the timer 75. It goes to a high level when the power switch is turned on, remains high even when the sleep trigger 6 is turned on, and reverses to a low level after a predetermined period of time. Let's do it.

Next, the operation of the sleeping warming device of this embodiment configured as described above will be described below. When the power switch 2 is turned on, the DC voltage that has been rectified and smoothed by the rectifier circuit 3 is passed through the resistor 6.
1 and the series resistor 62, the temperature adjustment variable resistor 63, and the resistor 64 in series to form a voltage dividing system, and comparator 42.
is applied to the negative input terminal of At this time timer 75
The first output of is at a high level, transistor 72 is on, and resistor 71 is shorted. Further, a DC voltage is applied to the positive input terminal of the comparator 42 via the resistor 41, and the electric charge is stored in the contin +j43.

On the other hand, the temperature detecting means 52 has a low temperature and a large impedance immediately after the power is turned on, so the collector current of the transistor 44 does not change. Therefore, a pulse is generated at the output terminal of the comparator 42 to turn on the buoy risk 46, and the electric heater is turned on. 51 is made conductive. Thereafter, the temperature of the electric heater 1 gradually increases until it reaches a temperature proportional to a predetermined temperature set by the temperature adjusting variable resistor 63, and the temperature detecting means 52
When the impedance of the transistor 44 decreases below a predetermined level, the collector current of the transistor 44 increases and
3 gradually decreases until the comparator 42 inverts its output pulse, turning the buoy risk 46 off. Thereafter, while repeating such operations, the temperature is controlled at the temperature set by the user using the temperature adjusting variable resistor 63, and the temperature is maintained at a substantially constant level.

Now, I went to bed in this state 4, and then I felt sleepy, so at time t1 in Fig. 3, the sleep onset switch was turned off.
Turn on 6. Then, from that point on, the timer 75 starts counting and runs for a preset time (t2-tl).
has passed. At time t2 shown in FIG. 4, the first output of the timer 75 is inverted to a low level, turning off the transistor 72, and the resistor 71 is connected to the temperature adjusting variable resistor 63 and the resistor 64 of the first temperature setting means 6. In order to increase the voltage at the negative input terminal of the comparator 42 and turn off the buoy risk 46, the temperature gradually decreases from time t2 as shown in FIGS. 2 and 3 and becomes proportional to the resistance of the resistor 71. The temperature remains constant. It goes without saying that the lowering b' cleanliness width and +', t2-t1) time can be changed arbitrarily by setting constants of the resistor 71 and the timer.

Next, an embodiment of the pond of the present invention will be described.

FIG. 5 shows a circuit in which a third temperature setting means 8 is added by N degrees to the contents of FIG. 1. 81 and 83 are resistors, 82 is a transistor, the collector of the transistor 82 and the transistor are connected to both ends of the resistor 64 of the first temperature setting means 6, and the base is connected to the transistor 72 of the timer 75 via the resistor 81.
The first output terminal a is connected to a second output terminal A, which is different from the first output terminal a.

This is a custom-made diagram of the temperature inside the bed with the configuration shown in Figure 5 of the 6th FiiJ Book, and Figure 7 shows the temperature when a control circuit (not shown) with a preheating means is added to the configuration of Figure 5 of the FNJ Book. The custom-made diagram, Figure 8, is an operation timing chart of the output terminal of the timer 75 shown in Figure 2.Unlike the operation of the first output terminal a, the low level is maintained when the power switch is turned on, and the high level is maintained when the sleep-in switch 76 is turned on. A predetermined time (t2-tl
), it performs an operation of inverting to a low level. A timer with such complicated timing can be easily constructed by combining logic circuits.

This third temperature setting means is a timer 7 as shown in FIG.
The output terminal in Figure 2 of 5 is normally at a low level and the transistor 8
2 is off. When the sleep-starting switch 76 is turned on, the level goes high and turns on the transistor 82, so that the resistor 64 is short-circuited at time t1.

The temperature gradually rises by an amount proportional to the resistance value of the resistor 64, and at time t2, the transistor 82 is turned off, so the resistance value of the resistor 64 increases.
is applied, and the temperature remains constant at the temperature set by the second temperature setting means.

Effects of the Invention As described above, according to the sleeping heating device of the wooden embodiment, the user only needs to turn on the switch when going to sleep, and after falling asleep and sleeping soundly, the temperature inside the bed is slightly lowered, so that it can be heated during the night. It is very beneficial because it allows you to have a comfortable sleep without feeling uncomfortable such as dry throat, night sweats, or waking up.

[Brief explanation of drawings]

Fig. 1 is a circuit diagram showing an embodiment of the sleeping heating device of the present invention, Fig. 2 is a temperature characteristic diagram in the bed according to the 6i111 shown in Fig. 1, and Fig. 3 is a diagram showing the structure of Fig. 1. Fig. 4 shows the behavior of the first output of the timer, and Fig. 5 shows a circuit showing another embodiment of the heating device for sleeping according to the present invention. Figure 6 is a diagram of temperature characteristics in the bed with the configuration shown in Figure 6, Figure 7 is a diagram of temperature characteristics in the bed when a preheating means is added to the configuration shown in Figure 5, and Figure 8 is the temperature characteristic diagram in the bed with the configuration shown in Figure 5. Fig. 9 is a conventional circuit diagram, Fig. 10 is a temperature characteristic diagram in the bed with the configuration shown in Fig. 9, and Fig. 11 is a bed when preheating means is added to the configuration shown in Fig. 9. It is an internal temperature characteristic diagram. 1... AC power supply, 2... Power switch, 3... Rectifier circuit, 4... Control circuit,
5... Body, 6... First temperature setting means, 7... Second temperature setting means, 8...
-Third temperature setting means, 75... Timer, 7
6...Sleep switch. Dou \mu) (g)'s busy schedule
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Claims (2)

[Claims] (1) A main body provided with an electric heater and a temperature detection means for detecting the temperature, a first temperature setting means for setting the temperature of the electric heater, and a temperature setting means for setting the temperature of the electric heater; This heating device for sleeping includes a second temperature setting means consisting of a sleep onset switch and a timer set to lower the temperature. (2) A third temperature setting means is provided which raises the temperature when the sleep-starting switch is turned on, and after the time set by the timer has passed, the temperature reaches the temperature set by the second temperature setting means. Warming equipment for sleeping as described.