JPS6222371B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor heating system that heats a room by installing a plurality of heater units on the floor.

A conventional floor heating system of this kind is constructed as shown in FIG. Reference numerals 1 to 8 are heater units, each of which has a built-in heating element (not shown). Among them, one representative unit has a built-in temperature sensor 9. 10 is a cord port, 12 is a power line and a sensor line, and a controller 13 that controls temperature.
is tangent to. The heating wires built into heater units 1 to 8 are connected in parallel (not shown) and connected to a power line. Also, 14
is a room temperature sensor, connected to the controller 13 with a lead wire 15, and can be installed at any height in the room. FIG. 2 is a circuit diagram of the conventional example already mentioned, which has a function of setting the temperature of the floor heater (hereinafter abbreviated as bed temperature) in accordance with the room temperature RT. The operation will be explained below. In the figure, 16 is a direct current circuit, and 17 is a temperature setting circuit, which inverts and amplifies the voltage V _R at the midpoint of the bridge circuit including the room temperature thermistor 18. The room temperature thermistor 18 exhibits negative temperature characteristics as shown in FIG. Therefore, if room temperature RT increases, room temperature thermistor 1
If the partial pressure V _R due to 8 increases and the room temperature RT decreases,
There is a completely direct proportional relationship in which V _R becomes smaller. This V _R is the reference voltage V _R of the inverting amplifier 19
It is inverted and amplified with respect to _EF . If the output of the inverting amplifier 19 is V _F , the relationship between V _R and V _F is as shown in a of FIG. 4. Further, by changing V _REF using the variable resistor 20, a curve such as b or c, which is a sliding curve of the curve a, can be obtained. Furthermore, the Zener diode 20 limits the maximum value of _VF . From the above, room temperature RT and temperature setting circuit 17
The relationship between the output voltage VR and the output voltage V _R is as shown in FIG. Next, 21 is a bed temperature detection circuit, which is a bed temperature thermistor 2.
It consists of a series circuit of 2 and a resistor. The temperature characteristics of the bed temperature thermistor 22 are similar to those of the room temperature thermistor 18, and are shown in FIG. 3. If the output voltage of the bed temperature detection circuit 21 is V _T , when the bed temperature is low, V _T has a low value, and when the bed temperature is high, V _T has a high value. 23 is a temperature control circuit, which includes a comparator 24 for comparing the voltages of V _F and V _T , and a DC relay coil 2 according to the output thereof.
The transistor 26 drives the transistor 5. When the output V _F of the temperature setting circuit is higher than the output V _T of the temperature detection circuit, the output of the comparator 24 becomes HIGH, the transistor 26 is energized, the relay contact 27 is turned on, and the heating element 28 is energized. Conversely, if V _F is lower than V _T , the output of comparator 24 will be LOW, transistor 26 will be deenergized, and heating element 28 will not be energized. To summarize the above, when the room temperature RT is low, V _R becomes a low voltage, and as mentioned above, in this case, the output V _F of the temperature setting means 17 becomes a high voltage, and the output V _T of the temperature detection circuit 21 becomes a high voltage. Heating element 2 until it becomes higher than V _F
8 is energized and the bed temperature FT is controlled to be high. Point a in FIG. 6 shows this situation. Conversely, when the room temperature RT is high, V _R becomes a high voltage,
V _F becomes a low voltage, and the bed temperature FT is controlled low. Point e in FIG. 6 corresponds to this.

As mentioned above, floor heating systems with a configuration in which the operating temperature of the floor heater is controlled according to the room temperature mainly use radiant heat in rooms where people sit on chairs, such as Western-style rooms and between wooden boards. As a result, warmth is obtained, and the relationship shown in Figure 6 holds true. To give an example of the data, in Figure 6, point a is room temperature 10°C and bed temperature 42°C, point f is room temperature 15°C and bed temperature 35°C, and point e is room temperature 20°C and bed temperature 28°C. By controlling the relationship between room temperature and floor temperature, a certain level of comfort can be achieved in the aforementioned Western-style rooms. However, in rooms where people sit on the floor (tatami), such as Japanese-style rooms that are common in Japan, inconveniences arise. When you sit on the floor and get warm mainly by conduction heat, you will feel a little hot when the floor temperature exceeds the human body temperature, and if it exceeds 40℃, you will feel very hot, and if it continues, you will feel uncomfortable. You will feel it. Therefore, when using a conventional floor heating system in a room where people sit and live, such as the Japanese-style rooms mentioned above, the floor temperature rises too much, especially when the room temperature is low, and comfortable heating cannot be expected. . In addition, if the floor temperature is set to a temperature that is comfortable for the human body, the energization rate of the heating element will decrease, and the ability to raise the room temperature will decrease, and the temperature of the room will not rise much and the temperature of the heating element that is in contact with the floor will decrease. Only one part of the body feels warm and the rest feels cold, which is still uncomfortable.

The present invention improves these conventional drawbacks, and allows the user to easily set the heating unit in the sitting area to the user's preferred temperature, even in a room where the user lives while sitting. The purpose of the heater unit is to provide a floor heating system that automatically sets the temperature according to the room temperature, heating the room itself, and providing comfortable warmth for the user. be.

In order to achieve this object, the present invention includes a first temperature setting means that includes a plurality of heater units and is configured to manually set the temperature, and a second temperature setting device that is configured to automatically set the temperature according to the room temperature. At least one of the heater units is configured to operate at a temperature according to the output of the first temperature setting means, and the other heater units are configured to operate at the second temperature setting means. A control means is provided.

With this configuration, the heater unit operated by the first temperature setting means can be operated at an operating temperature that suits the user's preference by manual temperature setting by the user; Since the heater unit operated by the first temperature setting means can be operated at an operating temperature corresponding to the room temperature, a user sitting on the heater unit operated by the first temperature setting means can operate the heater unit at an operating temperature corresponding to the room temperature, regardless of the room temperature. In addition to being able to comfortably heat the room according to one's own preferences, the heater unit operated by the second temperature setting means can receive radiant heating that feels comfortable depending on the room temperature. The entire room can be heated accordingly.

Furthermore, in order to achieve the above-mentioned object more effectively and with greater ease of use, the present invention provides a designating means that can designate either the first or second temperature setting means corresponding to each heater unit. It was established.

With this configuration, the user can arbitrarily specify the heater unit on which he or she should sit using the specifying means, and manually set the operating temperature of that heater unit.

Hereinafter, one embodiment of the present invention will be described using the drawing of FIG. In FIG. 7, the same circuits as those in FIG. 2 are given the same numbers. In this example,
An example will be described in which there are eight heater units.
Each heater unit also has a built-in heating element and temperature sensor. Reference numeral 29 denotes a temperature setting circuit that can be manually set as desired, and its specific configuration is as shown in FIG.
It is divided by a resistor and a variable resistor 29-3, and 2
Output is taken out from the voltage dividing point 9-4. The output can be changed by changing the resistance value of the variable resistor 29-4. 17 is an automatic temperature setting circuit whose temperature setting output changes according to the room temperature;
The same operations as those described using the figures and FIGS. 3 to 5 are performed. Reference numeral 30 designates a designation circuit for specifying whether each heater unit is to be operated at a manually set temperature or an automatic set temperature that is set according to the room temperature, and its specific configuration is shown in FIG. The designated circuit is composed of eight blocks corresponding to eight heater units. 30-1, 3 in the figure
0-8 are each one block, 3
0-2 to 30-7 are omitted. 30-
The operation of the designated circuit will be explained using block 1 as an example. 30-9 is the positive side of the DC current, 30-
10 is connected to the ground side of the DC power supply. 3
0-11 is a designated switch, and if the contact on the 30-A side is ON as shown in the diagram, the temperature of the heater panel corresponding to this block will be automatically set according to the room temperature. ni, again, 30-
When the contact on the B side is ON, the following circuit configuration is configured so that the temperature can be set manually. Switch 30-11 has contact on 30-A side
When ON, the transistor 30-11 is energized and the relay coils 30-13, 30-1
4, 30-15 is driven. Conversely, when the contact of the switch 30-11 is on the 30-B side, the transistor 30-11 is deenergized and the relay coils 30-13, 30-14, 30-15
is not driven.

Next, returning to FIG. 7, 31 receives the output of the instruction circuit 30 and controls the outputs of the manual temperature setting circuit 17 and the automatic temperature setting circuit 29 from temperature control circuits 23-1 to 23 for controlling each heater unit. This is a control circuit that supplies signals up to -8 according to specifications, and its specific configuration is shown in FIG. 31-1 to 3 in the diagram
Each relay contact from 1 to 8 is connected to 3 shown in Figure 9.
It corresponds to the relay coils of each block from 0-1 to 30-8. The operation will be explained using the contact point 31-1 as an example. At 30-1 in FIG. 9, relay coil 30-13 is being driven, thereby causing relay contacts 31-1-A in FIG. 10 to close and 31-1-B to open. Therefore, the 10th
The output of the automatic temperature setting circuit 17 is supplied as the output 31-9 in the figure. When the switch 30-11 in Fig. 9 is turned on to the 30-B side, the relay coil 30-13 is not driven, the contact of 31-1-A is open, and the contact of 31-1-B is closed. Therefore, the output of the manual temperature setting circuit is supplied to 31-9. Hereinafter, corresponding to each block of designated circuits 30-2 to 30-8 in FIG. 9, blocks 31-10 to 31-1
6 is supplied with either the output of the automatic temperature setting circuit 17 or the output of the manual temperature setting circuit 29 in the same manner. Next, returning to FIG. 7, the temperature detection circuit 32 will be explained. The specific configuration of the temperature detection circuit 32 is shown in FIG. In the figure, 32-1 to 32
Thermistors up to -8 are temperature sensors built into each heater unit. 32-9, 32
A DC power supply is connected between -10 and the voltage is divided by a thermistor and a resistor, and the resulting partial voltage is taken out as a temperature signal for each heater panel. This temperature signal is
The voltage is input via relay contacts 32-11 to 32-18 to a circuit 32-19 that outputs the average value of the input voltage. Relay contacts 32-11 to 32-18 are connected to blocks 30-1 to 30-1 of the designated circuit in FIG.
30-8, and in the case of 30-1, if the relay coil 30-14 is driven, the first
Relay contact 32-11 in Figure 1 will close. Therefore, the temperature signal of the heater unit for which automatic temperature setting based on the room temperature is designated by the designation circuit 30 is inputted to the circuit 32-19 for calculating the average voltage, and the average value thereof is obtained. In addition, relay contacts 32-21 to 32-27 also correspond to blocks 30-1 to 30-8 of the designated circuit in FIG.
is driven, relay contact 32 in FIG.
-20-A is closed and 32-20-B is opened, and 32-20-B is the output of the temperature detection circuit.
28, the average value signal is obtained. On the contrary, the seventh
If the illustrated relay coil 30-15 is not driven, the relay contacts 32-20-A are open;
32-20-B is closed and output 32-28 has
A temperature signal corresponding to the thermistor 32-1 is output. In this way, the outputs 32-28 to 32-28 of the temperature detection circuit 32 correspond to each block of the designated circuit in FIG.
32-35, for heater units that manually set the temperature, a temperature signal obtained from each thermistor built into the corresponding heater unit is output, and the temperature is automatically set according to the other room temperature. The average value of the temperature signals obtained from the individual thermistors built into the corresponding heater unit is output to the heater unit. Next, return to Figure 7, 23-1 to 23-8
2 is a temperature control circuit corresponding to each heater unit, and its specific configuration is similar to the circuit shown at 23 in FIG. 2, and its operation is as described above. 23-1
For example, in the designated circuit 30, the block 30-
1, when manual temperature setting is specified, the output of the manual temperature setting circuit 29 is selected and output from 31-9 as the output of the control circuit 31. Further, the temperature detection circuit outputs a temperature signal obtained from a thermistor built into the corresponding heater unit to 32-28. In response to these two signals, the temperature control circuit 23-1 turns on and off the relay contact 33-1, thereby controlling the energization of the heating element 34-1 to the operating temperature set by the manual setting circuit. It will be controlled so that or,
In the designation circuit 30, if automatic temperature setting, which sets the temperature according to the room temperature, is designated in block 30-1, automatic temperature setting circuit 17 is specified in block 31-9.
The output will be output. Also, from the temperature detection circuit,
The average value of temperature signals obtained from thermistors built into heater units designated for automatic temperature setting is output at 32-28. In response to these two signals, the temperature control circuit 23-1 connects the relay contact 33
-1 by turning ON and OFF the heating element 34-
1 is controlled so that the operating temperature is set by a temperature setting circuit that automatically sets the temperature according to the room temperature.

In this way, by setting the operating temperature of each heater unit by providing the automatic temperature setting circuit 17 that sets the temperature according to the room temperature and the manual temperature setting circuit 29 that allows you to manually set the temperature, the user can set the operating temperature according to his/her preference. In addition to being able to warm up by sitting on the heater unit that is operating at a certain temperature, the operating temperature of the other heater units is determined according to the temperature of the room, making it possible to automatically heat the room comfortably. Further, a designation circuit 30 for specifying manual temperature setting or automatic temperature setting for each heater unit, and a control circuit 31 for supplying one of two types of temperature setting signals to the temperature control circuits 23-1 to 23-8 are provided. This allows the user to designate any heater unit to heat the room at a desired operating temperature at a desired location, and also to heat the room using other heater units.

As described above, according to the floor heating device of the present invention, the heater unit that operates by manual temperature setting can be operated at an operating temperature that suits the user's preference by manually setting the temperature by the user, and ,
A heater unit that operates with automatic temperature settings can be operated at an operating temperature that corresponds to the room temperature, so a user sitting in a heater unit with manual temperature settings can adjust the temperature to suit his or her preferences regardless of the room temperature. In addition to being able to take in comfortable heat, the heater unit that operates with automatic temperature settings allows you to receive radiant heating that feels comfortable depending on the room temperature, and can also heat the entire room depending on the room temperature. . Furthermore, by making it possible to specify either manual temperature setting or automatic temperature setting for each individual heater unit, the user can adjust the temperature setting according to the usage conditions such as when things are placed in the room. Depending on the user's preferences, the user can arbitrarily designate the heater unit he/she should sit on and manually set the operating temperature of that heater unit to the desired temperature.

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram showing a conventional floor heating system.
Fig. 2 is a control circuit diagram of a conventional floor heating system, Fig. 3 is a temperature characteristic diagram of a thermistor, and Fig. 4 is a diagram showing the relationship between input and output of an automatic temperature setting circuit whose set temperature changes depending on the room temperature. Figure 5 is a diagram showing the relationship between room temperature and output voltage in the automatic temperature setting circuit as in Figure 4, Figure 6 is a diagram showing the relationship between room temperature and floor temperature in a conventional floor heating system, and Figure 7 is A control circuit diagram of a floor heating device according to an embodiment of the present invention, FIG. 8 is a circuit diagram showing a specific configuration of the manual temperature setting circuit in FIG. 7, and FIG. 9 is a specific configuration of the specified circuit in FIG. 7. 10 is a circuit diagram showing a specific configuration of the control circuit in FIG. 7, and FIG. 11 is a circuit diagram showing a specific configuration of the temperature detection circuit in FIG. 7. 17...Second temperature setting means, 23-1 to 23
-8, 31, 33-1 to 33-8... control means,
30...Designation means.

Claims (1)

[Scope of Claims] 1. A floor heater consisting of a plurality of heater units configured to be installed on the floor, a first temperature setting device configured to manually set the temperature, and a first temperature setting device configured to automatically set the temperature according to the room temperature. The second temperature setting means and at least one of the heater units operate at a temperature corresponding to the output of the first temperature setting means, and the other heater units operate at a temperature corresponding to the output of the first temperature setting means.
and a control means configured to operate with the temperature setting means. 2. The floor heating apparatus according to claim 1, wherein the control means includes a designation means that can designate either the first temperature setting means or the second temperature setting means in correspondence with each heater unit. .