JPS6235568B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a controller for a floor heater having a heating element such as an electric heater called an electric carpet. In particular, in the present invention, the floor temperature of the floor heater is controlled to a temperature set by the user, and
It determines the comfort of the air-conditioned space based on the set floor temperature and the detected room temperature, and also controls other heaters connected to the outside.

Conventionally, as a heating system using a plurality of heaters including such an electric carpet, there is a system using a floor heater and a heat pump type air conditioner.

1 This control system consists of a temperature controller that has a temperature controller that sets the floor temperature of the floor heater, and a temperature controller that has a temperature controller that sets the air inlet temperature of the air conditioner. Therefore, when operating a floor heater and air conditioner together, it was time-consuming to operate two temperature controllers: one to set the floor temperature and the other to set the air inlet temperature of the air conditioner. .

2. Furthermore, there was no guideline for a comfortable combination of temperature settings, and the floor temperature or room temperature was often set too high, creating an uncomfortable situation.

3 Even if the combination of floor temperature and room temperature is set to be comfortable, the amount of heat generated by the air conditioner will be smaller than the heating load due to the outside temperature and the opening or closing of the door, causing the room temperature to drop and the sense of comfort to be impaired. There was a need to set the floor temperature again.

The present invention eliminates the above drawbacks, and makes it possible to control the bed temperature and room temperature with one temperature controller without having to operate two temperature controllers as described above. The floor temperature can also be temporarily set when the room temperature that is generally considered comfortable in relation to the floor temperature cannot be obtained because the heat output of other externally connected heaters (for example, air conditioners) is small compared to the heating load. This system automatically changes the environment to provide a comfortable living space. Further, the automatically changed set floor temperature can be canceled by turning off the power of the control device.

An example will be described below with reference to the drawings. FIG. 1 is a diagram showing the relationship between floor temperature and room temperature, which is generally considered comfortable. The present invention is constructed to have the characteristics shown in FIG. FIG. 2 is an overall block diagram when the control device of the present invention is used, in which 1 is a commercial frequency power supply, 2 is a power switch, and 3
Reference numeral 4 indicates a room temperature thermistor that detects the room temperature; 4 a temperature controller that the user sets to an arbitrary temperature; 5 a floor temperature thermistor that is installed near the heating element for floor heating that detects the floor temperature; and 6 the room temperature thermistor 3. , a switch 8 which is a thermo circuit with inputs of a temperature controller 4 and a floor temperature thermistor 5, and which opens and closes a heating element 9 for floor heating;
Switch 7 that opens and closes other heaters connected to the outside
control. 8', 7 are contacts corresponding to the switches 8, 7. 10 is another heater connected to the outside, and 11 is a commercial frequency power source for the other heater.

FIG. 3 is an example of a circuit that further embodies FIG. 2. In Figures 2 and 3, the thermo circuit 6
The floor temperature control circuit for controlling the heating element 9 for floor heating in the room is composed of a constant voltage discharge tube 14, a pulse transformer 13, and a control circuit 12, and a temperature controller 4 and a floor temperature thermistor 5 are inputted thereto. The temperature controller 4 and the floor temperature thermistor 5 are connected in series and connected to a power source. The bed temperature thermistor 5 is a thermistor with a negative temperature coefficient whose impedance increases as the temperature decreases. Furthermore, when a predetermined breakover voltage is applied to the constant voltage discharge tube 14, it starts discharging and sends a signal to the control circuit 12 via the pulse transformer 13. In other words, the resistance of the temperature controller 4 and the partial pressure of the bed temperature thermistor 5, which are set by use, are applied to the constant voltage discharge tube 14, and when discharge starts (the bed temperature thermistor 5 falls below the set temperature). (When the heating element 9 becomes hot) The output of the control circuit 12 operates the switch 8 that opens and closes the heating element 9 for floor heating, the contact 8' closes, and electricity starts flowing to the heating element 9 for floor heating. The bed temperature control circuit operates as described above. A room temperature determination circuit within the thermo circuit 6 that controls other heaters connected to the outside is comprised of an analog multiplexer 16, an analog-digital converter 19, and a microcomputer 22. The temperature controller 4' is a controller (for example, a two-circuit slide switch) that is interlocked with the temperature controller 4, and the resistor group 21 connected to each contact corresponds to the relationship between the bed temperature and room temperature shown in FIG. This value is selected to constitute the room temperature setting circuit. The series circuit of the temperature regulator 4' and the resistor group 21 and the voltage division of the resistor 18 are connected to the analog multiplexer 16.
applied to the input of Moreover, the midpoint E of the series circuit of the resistor 20 and thermistor 3 is applied to the input of the analog multiplexer. The signals input to these analog multiplexers are sent to the microcomputer 22 via an analog-to-digital converter 19.
is supplied to The microcomputer 22 compares the signal from the connection point between the room temperature setting circuit 21 and the resistor 18 with the signal from the room temperature thermistor, and if the room temperature becomes lower than the set temperature, the transistor 1 is switched on.
7 is turned on to operate the switch 7. Therefore, the contact point 7' closes and the other heaters connected to the outside start being energized. Next, a case will be described where the room temperature does not reach the desired temperature given by the room temperature setting circuit because the amount of heat generated by another heater connected externally is smaller than the heating load.

If the user sets the floor temperature to notch 2 shown in FIG.
The setting will be (A′). However, if the room temperature rises only to point A, that is, 15 degrees Celsius, the bed temperature should be adjusted to notch 3.
In other words, it is necessary to set point B at 33℃. FIG. 4 shows an example where the room temperature does not reach the desired temperature. First, the ON point and OFF point of the room temperature are determined from the floor temperature set by the user with the temperature controller,
The center value of the point and OFF point is 18℃. _S1 ,
S ₂ and S ₃ indicate sampling timings at which the room temperature determination circuit 22 determines the slope of the room temperature. At S ₂ points it is pointing upwards, and at S ₃ points it is horizontal. The room temperature at _{the three} points S is lower than the above-mentioned ON point and OFF point regions, is equal to the temperature at the previous sampling time, and has a horizontal slope, so it is necessary to change the bed temperature. Therefore, the microcomputer 22 can detect the a (+3deg) of the reed relay 23.
The bed temperature setting is changed by driving and closing contact a'. Then, the changed settings are stored in a data memory in the microcomputer that can read and write data. Thereafter, operation continues at the bed temperature set value indicated by the data in the memory. When the power switch 2 is turned on after being turned off once, the microcomputer 2
The program counter in 2 is reset. Thereafter, by executing a program to clear the data in the data memory, operation can be performed based on the bed temperature set by the user using the temperature controller.

The contacts a, b, c, and d of the reed relay 23 are
Corresponds to a′, b′, c′, and d′.

As described above, according to the present invention, the air conditioning state of the air-conditioned space is determined based on the set floor temperature based on the characteristics of the floor temperature and room temperature as shown in FIG. By controlling other heaters, changing the set temperature of the floor temperature, and temporarily storing the set temperature change data, a comfortable living space can be created. There is no need to worry about adjusting the temperature. There is no difficulty in selecting the set temperature that occurs because there is no guideline for the set temperatures of the two temperature controllers. There is no need to change the set temperature of the floor even if other externally connected heaters become insufficient in heat generation due to fluctuations in the heating load. By ending the operation and turning off the power switch, the floor temperature setting that corresponds to heating load fluctuations will be canceled, so when you restart the operation, the temperature set by the user will be maintained without any special operation. You can start driving.

[Brief explanation of the drawing]

Fig. 1 is a diagram explaining the characteristics of the temperature control device of the present invention, Fig. 2 is an overall block diagram of a heating system configured using the control device of the present invention, and Fig. 3 is an embodiment of the present invention. A specific circuit diagram, 4th
The figure is a diagram explaining the operation of an embodiment of the present invention. 2...Power switch, 3...Room temperature thermistor, 4
...Temperature controller, 5...Bed temperature thermistor, 6...
Thermo circuit, 7...Switch for opening/closing other heaters, 8...Switch for opening/closing heating element for floor heating, 1
2, 13, 14...bed temperature control circuit, 16, 19,
22... Room temperature determination circuit, 21... Room temperature setting circuit.

Claims (1)

[Claims] 1. A floor temperature thermistor that detects the floor temperature, a temperature controller that allows the user to set an arbitrary floor temperature, a room temperature thermistor that detects the room temperature of the air-conditioned space, and input signals from the floor temperature thermistor and temperature controller. a floor temperature control circuit that controls a switch that opens and closes a heating element for floor heating so that the floor temperature reaches the set temperature by comparing the floor temperature with the set temperature of the temperature controller; and the setting of the temperature controller. A signal from a room temperature setting circuit that sets a temperature with an arbitrary correlation to the temperature and a signal from the room temperature thermistor are input to heat the air-conditioned space so that the room temperature reaches the temperature determined by the room temperature setting circuit. In addition to controlling the switch that opens and closes the heater, the room temperature is sampled at arbitrary time intervals, and the slope and room temperature are determined. A temperature control device comprising a room temperature determination circuit that changes a set floor temperature when the temperature is flat or downward, and a data memory in which the changed set bed temperature is cleared when a power switch is turned off.