JPS61140089A - Warmer for sleeping - 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] Industrial applications The present invention relates to a heating device for sleeping such as an electric blanket.

Conventional technology Although the housing environment has improved in recent years, the temperature in the bedroom is low and the temperature difference between going to bed and waking up is large, especially in cold areas, where the temperature difference is large compared to general areas, making it difficult to avoid the cold in the morning. do not have. For this reason, heating equipment for sleeping has become a necessity, and electric blankets and the like have come to be widely used as general heating equipment.

FIG. 5 is a block diagram of a conventional electric blanket;
is a blanket body, 2 is a thermal heater wire wired to the blanket body 1, and a is a controller incorporating a control circuit and a power supply circuit for controlling power supply to the thermal heater 4#I2;
4 is a temperature control knob attached to the controller 3.

Problems to be Solved by the Invention FIG. 6 shows the temperature of the blanket body in the cross section shown in the middle of FIG. FIG. The temperature of the blanket body changes as shown in the figure depending on the room temperature. This means that the thermal heater ls2 has an average blanket body temperature □
This is because it does not detect the temperature, but only the heater temperature, and in this case, when the room temperature drops, the temperature of the blanket itself will drop, especially between the heaters.

Further, FIG. 7 is a diagram showing the use state of the electric blanket in the conventional example, where 5 is a comforter, 6//'i mattress, and 7 is a human body. Figure 8 is a diagram showing the temperature of the blanket body at cross section AA' in Figure 5 when sleeping or taking warmth as shown in Figure 7, and the temperature of the blanket body is shown in the diagram according to the room temperature. It changes like that.

That is, the temperature of the blanket body during practical use is more influenced by the heat generated by the human body 7 than by the heat-sensitive heater wire 2, and there is no distribution according to the wiring pitch. As shown in FIG. 8, the decrease in the temperature of the blanket itself as the room temperature decreases is most noticeable at the feet because of the distribution of heat dissipation from the human body. As a result, a decrease in skin temperature in the lower part of the human body is observed, which is extremely uncomfortable. In addition, in order to prevent this, when the power supply to the thermal heater Is2 is controlled to increase as the room temperature decreases, the temperature of the blanket body changes from a (room temperature 10"C) to b (room temperature 0°C) in FIG. This prevents the temperature at your feet from dropping, but on the other hand, the temperature at your chest increases, making your chest tight and uncomfortable.

Further, as shown in FIG. 5, since the controller a has a separate structure from the main body 1, there is also the problem that it is difficult for a person taking a warm temperature to operate the temperature control knob 4, etc. while sleeping. If the controller 3 with a built-in control device is installed in a part of the main body where it can be easily operated, the controller a will become entangled inside the bed, causing the internal temperature of the control device to become high and causing abnormal operations such as self-triggering of the thyristor. There was a high possibility that it would cause Therefore, in the conventional technology, the controller 3 and the main body 1 have to be constructed separately, which is inconvenient to use. The present invention therefore solves these problems.

Problems and means to solve them
1. The technical means of the present invention to solve the above problems is to wire the heat-sensitive heater wires so that the heat generation density is different between the chest side and the feet side of the main body, and to install a control device on the chest side end of the blanket main body. A room temperature sensor is placed inside the blanket, and the set value of the blanket is changed depending on the direction of the room temperature sensor.

Function: With this configuration, the temperature of the blanket body fluctuates in response to changes in room temperature, so the temperature inside the bed is always kept substantially constant and uniform, making it possible to sleep comfortably.

Furthermore, even in a configuration in which the control device is integrated into a part of the main body, the room temperature detector inside the control device prevents the control device from becoming too high and ensures normal operation at all times, improving usability.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4.

FIG. 1 is a configuration diagram of an electric blanket in one embodiment of the sleeping warming device of the present invention. Components with the same numbers as those in FIG. 5 are the same, so although the explanation will be omitted, the thermal heater M2 has denser wiring on the foot side. 8#i This is a room temperature detector that detects the room temperature and sends its output to controller a.

FIG. 2 is a control block diagram in the above embodiment.

Components with the same numbers as those in FIG. 1 are the same, and therefore their description will be omitted. 9 is the aforementioned thermal heater! 10 is a volume resistor whose resistance value changes in conjunction with the temperature control knob 3, and a 12-digit voltage comparator 11 receives the ON-OFF signal. is a power supply circuit that turns on and off the power supply.

In the above configuration, the voltage comparator 11 compares a signal from the temperature sensitive layer 9 that detects the temperature of the main body 1 with a composite signal of the room temperature detector 8 and the volume resistor 10,
An ON/OFF signal is sent to the power supply circuit 12. In other words,
By appropriately selecting the temperature characteristics of the room temperature detector 8, the set temperature of the main body 1 can be increased as the room temperature decreases.

Figure 3 shows the state of BB' in Figure 1 when it is inserted between the comforter and the mattress at the most horizontal position of the main body in the above embodiment and the electricity is controlled.
It is a figure which showed the blanket main body temperature of a cross section. As the set temperature of the main body 1 increases as the room temperature decreases, the power supply state to the thermosensitive heater wire 2 changes, forming a temperature distribution as shown in the figure. This is because the heater wires are pinched more closely at the feet than at the chest, so the increase in heat generation when the power supply increases is particularly large at the feet.

Furthermore, FIG. 4 is a diagram showing the temperature of the blanket body when the electric blanket in the above embodiment is used. room temperature is 1
As described above, as the temperature decreases from 0°C to O'C, the power supplied to the thermosensitive heater wire 2 increases, but the amount of heat generated increases especially at the feet, where heat radiation from the human body decreases when the room temperature drops, so overtemperature at the chest area increases. It is possible to prevent the temperature of the blanket body at the feet from decreasing without causing an increase in temperature, and to form an almost uniform temperature distribution, although it is slightly higher at the chest and lower at the feet. This has the effect that you can always sleep comfortably even when the room temperature changes.

Further, in the above configuration, when the controller 3 is caught inside the bed, the room temperature detector 9 acts to lower the set temperature of the blanket, and the temperature inside the controller is so high that the self-triggering of the thyristor causes an abnormal operation such as -. temperature does not rise. In other words, with the above configuration, the controller and the main body can be integrated without any safety problems, and the usability is improved.

In addition, in the above example, the configuration of an electric blanket was explained.
Similar effects can be obtained with electric bed blankets, bed pads, etc.
Furthermore, the same effect can be obtained by using a two-wire structure in which the heater wire and the detection wire are separated, rather than the so-called one-wire structure used with the heat-sensitive heater wire 2 as in the embodiment, and the present invention is not limited to the above-mentioned embodiment. .

Effects of the Invention As described above, the sleeping warming device of the present invention provides the following effects.

(1) The controller and main body can be integrated without compromising safety, and the user can operate the scale from inside the bed, improving usability.

(2) 'i! ! Oi'T K”*I、、＠＄!
ゝ15''15-1. The temperature waves in the bed can always be made substantially constant and uniform, so that a comfortable sleep can be achieved at all times.

(3) When the room temperature rises, the set temperature is automatically lowered to save energy.

(4) In order to achieve the object of the present invention, it is also possible to have a configuration in which multiple heater wires are wired individually to the chest side and to the feet side, and the power supply is controlled individually to each wire. However, in the present invention, the purpose can be achieved at a very low cost.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of an electric blanket according to an embodiment of the present invention;
The figure is a control block diagram in the above embodiment, Figure 3 is a diagram showing the temperature distribution in the above embodiment when not in practical use, Figure 4 is a diagram showing the temperature distribution in the above embodiment in practical use, and Figure 5 is a diagram showing the temperature distribution in the above embodiment when it is not in practical use. 6 is a diagram showing the configuration of a conventional electric blanket, FIG. 6 is a diagram showing the temperature distribution in the above conventional example when it is not in practical use, FIG. 7 is a diagram showing the usage state of the above conventional example, and FIG. 8 is a diagram showing the above conventional example. FIG. 9 is a diagram showing the temperature distribution during practical use in another conventional example. 1...Blanket body, 2...Thermal heater wire,
3... Controller, 4... Temperature control knob, 5... Comforter, 6... Mattress, 7... Human body, 8... ...Room temperature detector, 9.
...Temperature sensitive layer, 1o...Volume resistance, 1
1... Voltage comparator, 12... Power supply circuit. Name of agent: Patent attorney Toshio Nakao and 1 other person3.
... Go > 40-2 4... Haruka Doki Ane Tsuma Yasu 2nd figure 3rd ri! J Mao Mouth Figure 4 Y # L Figure 5 Figure 6 Round part Y Figure 8 Yu Part Yu No. 92 Round part Gen

Claims (2)

[Claims] (1) A main body, a heat-sensitive heater wire that has a heat-generating wire and a detection wire via a temperature-sensitive layer, and is wired so that the heat generation density is different between the chest side and the feet side of the main body, and a heat-sensitive heater wire that is connected to the chest side end of the main body a control device that controls power supply to the thermosensitive heater wire so that the temperature of the main body is approximately at a set value; and a room temperature detector that detects room temperature; A heating device for sleeping that fluctuates the value and has this room temperature detector located inside the control device. (2) Sleeping according to claim 1, wherein the thermal heater wire has a uniform heat generation density in the length direction and is wired as one wire so that the wiring pitch is different on the chest side and the foot side of the main body. Warming equipment.