JPH01217147A - Control device for air conditioner - Google Patents

Abstract

PURPOSE:To make a uniform operating time for each of air conditioners by a method wherein an operation of a temperature adjuster for a plurality of air conditioners installed in one room is performed such that data is transmitted through a data transmitting path via a data path. CONSTITUTION:Control devices 1, 8 and 9 for an air conditioner are comprised of a temperature adjuster 3 for receiving outputs from a temperature sensor 2 for sensing an interior temperature and from a temperature setting unit 6 for setting an interior temperature to determine an operating condition of an air conditioner, a control circuit 4 for receiving an output of a signal indicating an operating condition of this temperature adjuster 3 and data outputting an operating condition signal determined by the temperature adjuster 3 and a data transmitting circuit 5 for data transmitting an output data of this control circuit 4 to another air conditioner. With this arrangement, since the temperature adjuster 3 may transmit an operation signal and a stop signal through the data transmitting circuit 5 and the data bus 7 so as to cause operating times of each of the air conditioners 1, 8 and 9 to be uniformed, each of the air conditioners 1, 8 and 9 is repeatedly operated.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a control device for an air conditioner.

BACKGROUND OF THE INVENTION Conventional individual air conditioners for buildings were controlled so that each air conditioner functioned independently. In other words, multiple air conditioners are installed in a floor room, and these air conditioners do not have a control device that functions in conjunction with other air conditioners. Issues to be Solved by the Invention In this conventional configuration, multiple individual air conditioners for buildings are often installed in one room; In this case, the room temperature control value of each air conditioner is usually set to be the same. However, in the conventional configuration, multiple air conditioners installed in one room do not interact with each other and function independently, so even if the room temperature control value is set to the same value, Due to variations in the operating temperature of the room temperature control device, there were differences in room temperature control by starting/stopping each air conditioner.

For example, in the case of cooling, if the air conditioning load is light and all the air conditioners are stopped, the room temperature will rise, but the air conditioner that detects the room temperature higher than the actual room temperature will be the first to enter the operating state. Since the room temperature will be lowered, other air conditioners will remain stopped. Then, when the room temperature drops to a certain temperature, the room temperature controller stops the operating air conditioner and the room temperature rises again. It is a harmonizing machine.

In this way, if multiple air conditioners are installed in one room and the air conditioning load is relatively light, only the same device is always operating, and the other air conditioners remain stopped. There was a problem that there was a large difference in the operating time of each air conditioner, which caused an imbalance in the lifespan of the equipment.

The present invention solves these problems, and when multiple air conditioners are installed in one room, it equalizes the operating time of each air conditioner to eliminate imbalance in equipment life. The purpose is to provide a control device for an air conditioner.

Means for Solving the Problems In order to solve this problem, the present invention provides a temperature sensor that senses indoor temperature, a temperature setting device that sets the indoor temperature, and a temperature sensor that receives the outputs of the temperature sensor and the temperature setting device. A temperature controller that determines the operating state of the air conditioner; a control circuit that receives the operating state signal output from the temperature controller and outputs the operating state signal determined by the temperature controller; This air conditioner control device is composed of a data transmission circuit that transmits output data to other air conditioners.

Function: With this configuration, the temperature controller receives the output from the temperature sensor and room temperature setting device, determines whether to start or stop, and transmits that information to other air conditioners via the control circuit and data transmission circuit. That will happen.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 6.

In FIG. 1, 1.8 and 9 are air conditioner control devices, and the air conditioner control devices 1.8 and 9 are connected to each other via a data bus 7 and a data transmission circuit 6.

The control devices 1, 8, and 9 of the air conditioner each include:
A temperature sensor 2 that detects the indoor temperature, a temperature setting device 6 that sets the indoor temperature, and a temperature controller 3 that receives the outputs of the temperature sensor 2 and the temperature setting device 6 and determines the operating state of the air conditioner. A control circuit 4 receives the output of the temperature controller 3 and the output from the data transmission circuit 6 to control various actuators of the air conditioner such as a compressor, and outputs data to the data transmission circuit 6, and a data bus. 7
and a data transmission circuit 6 that transmits and receives data according to instructions from the control circuit 4. In the above configuration, an example in which three air conditioners are installed in one room will be described. That is, in Figure 1,
Control devices 1, 8 and 9 are installed in the same room.

Here, even if each air conditioner is set to the same temperature setting value T as shown in FIG. is T4. Differences occur between each air conditioner, such as T2 and T3. Here, the operating temperature of the control device 1 is T4, the operating temperature of the control device 8 is T2, and the operating temperature of the control device 9 is T4.
The explanation will be given assuming that the operating temperature is T3.

As shown in Figure 3, the indoor temperature during trap and cooling operation is T1.
Considering the case where the air conditioner moves up and down in the vicinity of
...However, in order to equalize the operating time of each air conditioner, operation/stop signals are sent to other air conditioners via the data transmission circuit 6 and data bus 7. send. As a result, as shown in Figure 3, the hourly eclipse 1~
The air conditioner 1 operates during t2, the air conditioner 8 operates between t3 and t4, the air conditioner 9 operates between t6 and t6, and so on. will be done.

Figure 3 shows an example where the cooling load is relatively light and the capacity is sufficient with just one air conditioner, but when the cooling load becomes large, the capacity of two air conditioners is required. The case where three units are required is shown in Fig. 4, and the case where three units are required is shown in Fig. 6.

In Fig. 4, time '11-'13 is air conditioner 1, time t
From time '12 to t16, the air conditioner 8 is operated, and from time '14 to t17, the air conditioner 9 is operated, and the two units are operated repeatedly, and the three air conditioners 1 are operated. .8 and 9 perform rotation operation.

Similarly in Fig. 6, time '21 to '24 is air conditioner 1.
, from time '22 to t26, air conditioner 8, from time t23'
In 2B, the air conditioners 9, . I will do it.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, the operation of the temperature controllers of a plurality of air conditioners installed in one room is controlled via a data bus using a data transmission line. By transmitting data, the operating time of each air conditioner is equalized, so due to variations in temperature controller operation, only certain air conditioners may have longer operating times, resulting in an imbalance in product life. This has the effect that there is no need to do so.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a control device for an air conditioner according to an embodiment of the present invention, Fig. 2 is a diagram showing variations in the operating temperature of the temperature controller of the control device, and Figs. 3 to 6 are diagrams of the control device. FIG. 2 is a diagram illustrating operating and stopping states of an air conditioner according to the present invention. 2... Temperature sensor, 3... Temperature controller, 4... Control circuit, 6... Data transmission circuit, 6... Room temperature Setting device, 7...Data bus. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 7--Die diagram 2

Claims (1)

[Claims] A temperature sensor that detects indoor temperature, a temperature setter that sets the indoor temperature, a temperature controller that receives outputs from the temperature sensor and the temperature setter and determines the operating state of the air conditioner, and this temperature controller. a control circuit that receives the operating status signal output from the temperature controller and outputs the operating status signal determined by the temperature controller; and a data transmission that transmits the output data of the control circuit to another air conditioner via a data bus. An air conditioner control device consisting of a circuit.