JPS6138483B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a controller for a floor heater having a heating element of 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 the comfort of the air-conditioned space is determined in relation to the set floor temperature and the detected room temperature change over time. It controls other heaters such as panel radiators, warm air fans, and heat pump air conditioners that heat the air-conditioned space, and changes the set floor temperature.

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. The controller has a temperature control circuit that controls the floor temperature of the floor heater, a temperature controller that selects the floor temperature, a temperature control circuit that controls the inlet temperature of the air conditioner, and a temperature controller that selects the room temperature. are doing. Therefore, when operating the floor heater and air conditioner in combination, it is necessary to operate two temperature controllers: one for selecting the floor temperature and the other for selecting the air conditioner's suction port temperature. Also, there was no guideline for a comfortable combination of temperature settings. Therefore, there has been a tendency to raise the temperature of the bed heating element too high or to raise the room temperature too high. Furthermore, since the amount of heat generated by other heaters connected to the outside is smaller than the heating load, the room temperature conditions that are generally considered to be comfortable may not be satisfied. The present invention makes it possible to control the floor temperature and room temperature with a single temperature controller without such difficult operations, and also reduces the amount of heat generated by other externally connected heaters to the heating load. Even if the room temperature that is generally considered comfortable cannot be obtained because the room temperature is small compared to the room temperature, the system automatically changes the set floor temperature to the optimal temperature to provide a comfortable living space. It is something that can be done.

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
8' and 7' are contacts corresponding to the switches 8 and 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. The same numbers as in FIG. 2 indicate the same parts as in FIG. In FIG. 3, the floor temperature control circuit that controls the heating element 9 for floor heating in the thermocircuit 6 consists of a constant voltage discharge tube 14, a pulse transformer 13, and a control circuit 12, and includes a temperature controller 4 and a floor temperature thermistor 5.
has been entered. The temperature controller 4 and the bed 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 decreases when the temperature becomes low. 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 set by the user and the partial pressure of the bed temperature thermistor 5 are applied to the constant voltage discharge tube 14, and when discharge starts (the bed temperature thermistor 5 is lower than the set temperature )
The output of the control circuit 12 operates the switch 8 that opens and closes the heating element 9 for floor heating, and the contact 8' closes to start energizing the heating element 9 for floor heating. The bed temperature control circuit operates as described above.

Next, a room temperature determination circuit within the thermo circuit 6 that controls other heaters connected to the outside includes an analog multiplexer 16 and an analog-digital converter 1.
9, a microcomputer 22.
The temperature regulator 4' is a regulator (for example, a two-circuit slide switch) that is interlocked with the temperature regulator 4.
The resistor group 21 connected to each contact point is selected to have a value that provides the relationship between the bed temperature and room temperature shown in FIG. 1, and constitutes a room temperature setting circuit.

The series circuit of the temperature regulator 4', the resistor group 21, and the divided voltage of the resistor 18 are applied to the input of the analog multiplexer 16. Also, resistor 20 and thermistor 3
The midpoint E of the series circuit of is applied to the input of the analog multiplexer. The signals input to these analog multiplexers are supplied to the microcomputer 22 via an analog-to-digital converter 19. The microcomputer 22 compares the signal from the room temperature setting circuit and resistor 18 with the signal from the room temperature thermistor, and turns on the transistor 17 to operate the switch 7 if the room temperature becomes lower than the set temperature. Therefore, the contact 7' closes and energization of other heaters connected to the outside is started.
Next, a case will be described in which the room temperature does not reach the desired temperature given by the room temperature setting circuit because the amount of heat generated by another externally connected heater is smaller than the heating load.

If the user sets the floor temperature to notch 2 shown in Fig. 1, the control device of the present invention will control the room temperature to 18°C (A).
The settings are as follows. However, the room temperature is point A, which is 15℃.
If the temperature rises only up to 100 degrees, the bed temperature needs to be brought to notch 3, that is, 33°C point B. 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 OFF point is 18℃. S ₁ , S ₂ ,
_S3 indicates the sampling timing 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 ON point and OFF point regions mentioned above and is level, so it is necessary to change the bed temperature. Therefore, the microcomputer 22
changes the bed temperature setting by driving a (+3deg) of reed relay 23 and closing contact a'.
Contacts a', a, b, c, d of reed relay 23,
It corresponds to 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. It also controls other heaters and changes the floor temperature setting to ensure a comfortable living space. Therefore, there is no need for the hassle of combining two temperature regulators to a comfortable set temperature as in the past, and there is no difficulty in selecting a set temperature that occurs because there is no standard for the set temperatures of the two temperature regulators. Furthermore, there is no need to change the set temperature of the floor temperature even if there is insufficient heat generation from other heaters connected to the outside.

[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 constructed 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 showing the relationship between time and temperature in the same device. 3...Room temperature thermistor, 4...Temperature controller, 5
...Bed temperature thermistor, 6...Thermo circuit, 7...
Switch for opening and closing other heaters, 8... Switch for opening and closing heating elements for floor heating, 12, 13, 14... Floor 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 that has an arbitrary correlation with 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 equipped with a room temperature determination circuit that changes the set temperature of the floor when the temperature is flat or downward.