JPS59200319A - Temperature controller - Google Patents

Abstract

PURPOSE:To simplify an air heating/cooling switch operation by incorporating an air heating/cooling changeover switch into a temperature setting switch. CONSTITUTION:A microcomputer 1 delivers control signals to transistors 8 and 11 on the basis of a temperature set by a temperature setting switch 16 of sliding type, etc. and the room temperature obtained from a thermistor 3. Then relay contacts 6 and 9 are turned on and off via relay coils 7 and 10. Thus a motor-driven compressor is operated to control an air heating or cooling temperature. In this case, one of the output ports of the switch 16 is selected to select the heating and cooling modes. This selected output port is connected to an input port I5 of the computer 1 to be used as the switch 16. The set values C1-C6 of the switch 16 show the temperature setting areas of a cooling operation mode; while H1-H6 show the temperature setting areas of a heating operation mode.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a temperature control device used in an air conditioner or the like.

A conventional temperature control device for an air conditioner will be described with reference to the drawings.

In Fig. 1, on the input side of a microcomputer (hereinafter referred to as microcomputer) 1, there is a cooling/heating switch 2 that selects cooling or heating, and A that converts the low resistance change of a thermistor 3 that detects room temperature into a digital signal. The /D converter 4 is connected to a temperature setting switch 5 that encodes and outputs the set temperature, and also connects a transistor 8 that drives a relay coil 7 of a relay contact 6 that controls electromagnetic four directions (not shown) in a 0N10FF manner. A transistor 11 that drives a relay coil 10 of a relay contact 9 that controls the compressor on a 0N10FF basis was connected to an output port of the microcomputer 1. 12 is a resistor, 13
and 14 are protection diodes, and 15 is a DC power supply. T1 to TI2 are still the set temperatures of the temperature setting switch 5, I,
X2I. I and I8 are the input ports of the microcomputer 1.

The operation of the temperature control device configured as described above will be described below.

First, during cooling, the cooling/heating changeover switch 2 is OFF, so the transistor 8 is OFF, and the relay coil 7 and relay contact 6 are OFF.

Therefore, the electromagnetic four-way valve of the cooling cycle is OFF, and the cooling cycle is activated.

Here, if the room temperature is higher than the set value of the temperature setting switch 5, the microcomputer 1 outputs an output to the transistor 11, turns on the relay coil 1o, turns on the relay contact 9, and operates the electric compressor to perform cooling operation. . This state is shown by the entry of time chart 1 in FIG.

Also, during heating, the cooling/heating selector switch 2 is set to ON, so the microcomputer 1's power is 11 H11, and the microcomputer 1 turns on the transistor 8, turns on the relay coil 7, and closes the relay contact 6. Turn on. This turns on the solenoid four-way valve and switches to the heating cycle.

If the room temperature is lower than the set value of the temperature setting switch 5, the microcomputer 1 outputs an output to the transistor 11, turns on the relay contact 9, turns on the electric compressor, and enters heating operation.

This state is shown in area B of FIG.

The human area in Figure 2 is the case where the temperature setting switch 5 is set to +7, and the binary code data corresponding to the set temperature T7 is input to the microcomputer 1. 11 Enter H++. Similarly, region B is a case where the set temperature is -, and "H" is input to the input and output terminals of the microcomputer 1.

FIG. 3 is a schematic diagram of a conventional cooling/heating changeover switch and a temperature setting switch.

However, in the above configuration, since the cooling/heating changeover switch 2 and the temperature setting switch 5 are independent, the temperature setting switch 6 is in the optimum temperature range for cooling (26°C to 28°C).
C) and the optimum heating temperature range (18°C to 22°C). Therefore, when switching between cooling and heating,
In addition to selecting the cooling/heating changeover switch 2, it is necessary to change the setting of the temperature setting switch 5, which requires two operations.

In addition, since the temperature setting switch 5 has both the optimum temperature range for cooling and the optimum temperature range for heating, it is possible to forget to operate the temperature setting switch 5 even though the changeover switch has been switched from heating to cooling. If the temperature remained in the optimum temperature range, the room temperature would be the optimum temperature for cooling, but if the operation had been performed correctly, the air conditioner would run and become too cold even though the indoor temperature is at a point where no cooling should be performed. In addition, if you forget to operate the cooling/heating selector switch 2 and set the cooling mode to 11, no matter how much you set the temperature setting switch 5 to the optimum heating temperature or set it to a high temperature, the heating operation will not work at all. If this is not done, the user may think it is a malfunction.

As mentioned above, this device had various problems. ○ Purpose of the Invention In view of the above-mentioned drawbacks, the present invention aims to eliminate the complexity of operation and unnecessary operation due to malfunction. .

Structure of the Invention The present invention has a configuration in which a cooling/heating changeover switch and a temperature setting switch are integrated, and this switch is provided with an optimum setting range for cooling operation and an optimum setting area for heating operation.

With this configuration, the air conditioner operates in the cooling mode in the cooling operation optimum setting range, and in the heating mode in the heating operation optimum setting range.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 and 5.

FIG. 4 is a circuit diagram of the temperature control device. The difference from the conventional example shown in FIG. 16. Note that the set values 01 to C6 of the temperature setting switch 6 are the temperature setting range for the cooling operation mode, and H1 to H6 are the temperature setting range for the heating operation mode. Moreover, the same numbers are given to the same members.

The operation of the temperature control device configured as above will be explained below.

When the setting value of the temperature setting switch 16 is selected as 05, "H+1" is input to the input ports I and I4 of the microcomputer 1, which becomes the temperature setting date. Since baljL+1, the cooling mode is set.

Next, when the room temperature is higher than the set value C5, a micro-machine (not shown) is turned on to perform cooling operation. Further, when the room temperature reaches the set value C6, the transistor 11 is turned off, the relay contact 9 is opened, and the electric compressor is stopped.

As described above, operation corresponding to the set value of the temperature setting switch 16 is performed. This state is shown in area a of the time chart in FIG.

In addition, when the temperature setting switch 16 is selected to H3, BH11 is input to the input port 2 of the microcomputer 1 and becomes the temperature setting data, and the input capo) I is "'"
H'' input, the heating mode is entered and the room temperature is controlled to correspond to the set value H3. This state is shown in region b of the time chart in FIG.

Note that FIG. 6 (A2) is a schematic diagram of the temperature setting switch of the present invention, and FIG. 6(B) is another embodiment.

Effects of the Invention As described above, the present invention incorporates and integrates the function of a cooling/heating changeover switch into a temperature setting switch, so that temperature setting and selection of cooling operation or heating operation can be performed simultaneously with a single operation. The user does not have to be conscious of switching, and the operation becomes easier. In addition, it eliminates excessive cooling during cooling operation and eliminates overheating during heating operation, thereby eliminating wasted energy due to malfunctions and providing comfortable air conditioning. Since only one switch is required, the practical effects are significant, such as a smaller size and cost reduction.

[Brief explanation of drawings]

Figure 1 is a circuit diagram of a conventional temperature control device, Figure 2 is a time chart of the same, Figure 3 (A) is a schematic diagram of the temperature setting switch, Figure (B) is a schematic diagram of the cooling/heating changeover switch, FIG. 4 is a circuit diagram of a temperature control device showing one embodiment of the present invention;
The figure is the same time chart, FIG. 6 (a) is a schematic diagram of the same temperature setting switch, and the same figure (b) is a schematic diagram of the temperature setting switch of the same other embodiment. 1...Microcomputer, 3
...Thermistor, ■+ + Work 2 + Work 4 + Work 5...Input port, 16...Temperature control switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 11 6 Figure 3/ Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] A temperature control device that has a sliding or rotating temperature setting switch with a cooling operation range that operates in cooling mode and a heating operation area that operates in heating mode.