JPS63194155A - Temperature controller for air-conditioner - Google Patents

Abstract

PURPOSE:To reduce a temperature difference within a room and improve a comfortable property as well as the efficiency of cooling and heating operations, by a method wherein the transmitter of a remote controller and the main body of an air-conditioner are provided with first and second temperature sensors for detecting indoor temperature and the rotating speed of an indoor fan motor is controlled based on a difference between detected indoor temperatures. CONSTITUTION:Indoor temperatures T1, T2 located around the transmitter 5 of a remote controller and an indoor machine 6 are detected by first and second temperature sensors 7, 14. An infrared ray signal 11, corresponding to the indoor temperature T1, is transmitted to the infrared ray receiving circuit 12 of the indoor machine 6 while a temperature data pick-up circuit 13 outputs a temperature data to a temperature difference operating circuit 16 based on the receiving signal of the infrared ray receiving circuit 12. The temperature data, corresponding to the indoor temperature T2 detected by the second temperature sensor 14, is inputted into the temperature difference operating circuit 16. The temperature difference operating circuit 16 operates a temperature difference while a motor control circuit 19 controls the rotating speed of an indoor fan motor 17 through a motor driving circuit 20 based on the output of the operation. According to this method, mixing of indoor air may be promoted, the difference of indoor temperatures may be eliminated and a temperature within a room may be controlled so as to be a set temperature.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioner that is remotely controlled by a remote control transmitter and in which the operation of a compressor motor is controlled based on a comparison output between a detected indoor temperature and a set temperature. The present invention relates to a temperature control device.

[Prior Art] Conventionally, this type of temperature control device is equipped with a temperature sensor (1) for detecting indoor temperature on either the remote control transmitter or the air conditioner main body, as shown in FIG. Sensor (
A comparator (3) compares the indoor temperature detected in step 1) with the set temperature set in the indoor temperature setting section (2), and controls the operation of the compressor motor (4) based on the comparison output. Or, in conjunction with this control, the operation of the indoor fan motor was controlled to control the indoor temperature. There has never been a system that controls the indoor temperature by taking into account the difference between the indoor temperature around the remote control transmitter and the indoor temperature around the air conditioner itself.

[Problems to be Solved by the Invention] As described above, the conventional temperature control device does not take into account the temperature difference between the indoor temperature around the remote control transmitter and the indoor temperature around the air conditioner body, Since the operation of the compressor motor (4) was controlled based on the comparative output of the set temperature,
There were the following problems.

When a temperature sensor (1) is installed on the remote control transmitter.

To control the temperature around the remote control transmitter to the set temperature (e.g. 25°C) during cooling operation, turn on the compressor motor (4) until the temperature around the air conditioner body falls below the set temperature (e.g. 23°C). The compressor motor (4) has to be operated more than necessary, resulting in poor operating efficiency and a temperature difference within the room, which impairs the comfort of the living space. In addition, if the temperature sensor (1) is installed in the air conditioner, even if the temperature around the air conditioner reaches the set temperature (for example, 25°C) during cooling operation, the temperature around the remote control transmitter where the occupant is There was a problem in that the temperature did not fall to the set temperature (for example, 27° C.), and that temperature air was generated inside the room, impairing the comfort of the living space.

A similar problem occurred during heating operation.

The present invention was made in view of the above-mentioned problems.

The object of the present invention is to obtain a temperature control device for an air conditioner that can simultaneously improve the efficiency of heating and cooling operation and improve the comfort of a living space.6 [Means for Solving the Problems] Temperature control device according to the present invention In an air conditioner that is remotely controlled by a remote control transmitter and in which the operation of a compressor motor is controlled based on a comparison output of a detected indoor temperature and a set temperature, the control device is configured to detect an indoor temperature around the remote control transmitter. a second temperature sensor that detects the indoor temperature around the air conditioner main body; It includes a temperature difference calculation circuit that calculates the temperature difference between the indoor temperatures detected by the second temperature sensor, and a rotation speed control circuit that controls the rotation speed of the indoor fan motor based on the output of the temperature difference calculation circuit. It is characterized by:

[Operation] The indoor temperatures around the remote control transmitter and around the air conditioner main body are detected by first and second temperature sensors, respectively. The temperature difference between the indoor temperatures detected by the first and second temperature sensors is calculated by the temperature difference calculation circuit.
The rotation speed of the indoor fan motor is controlled based on the output of the temperature difference calculation circuit to reduce the indoor temperature difference between the area around the remote control transmitter and the area around the air conditioner body. That is, as the temperature difference increases, the rotational speed of the indoor fan motor is increased to promote stirring of the indoor air, thereby reducing the indoor temperature difference. In this way, the operation of the compressor motor is controlled based on the comparison output between the detected indoor temperature and the set temperature while reducing the temperature difference within the room.

[Example] Figures 1 and 2 show an example of the present invention.
In these figures, (5) is the remote control transmitter, (6)
is an indoor unit as the main body of the air conditioner. The remote control transmitter (5) has a first one for detecting the surrounding room temperature.
A temperature sensor (7), a temperature detection circuit (8) that converts the indoor temperature detected by this first temperature sensor (7) into corresponding temperature data and outputs it, and output data of this temperature detection circuit (8). an infrared code generation oscillation circuit (9) that generates and outputs a corresponding infrared code based on the above, and transmits a corresponding infrared light signal (11) based on the output of the infrared code generation oscillation circuit (9). Infrared light emitting element (10)
and is provided. The indoor unit (6) includes an infrared receiving circuit (1) that receives an infrared light signal (11) transmitted from the infrared light emitting element (10) of the remote control transmitter (5).
2), and a temperature data extraction circuit (13) that extracts temperature data based on the received signal of the infrared receiving circuit (12).
and a second temperature sensor (
14), a temperature detection circuit (15) that converts the indoor temperature detected by the second temperature sensor (14) into corresponding temperature data and outputs it, the temperature data extraction circuit (13), and the temperature detection circuit (14). a temperature difference calculation circuit (16) that calculates a temperature difference based on the temperature data output by the temperature difference calculation circuit (15); and a rotation controller that controls the rotation speed of the indoor fan motor (17) based on the output of the temperature difference calculation circuit (16). Speed control circuit (18
) is provided. The rotational speed control circuit (18)
are the motor control circuit (19) and the motor drive circuit (20)
It is configured such that the larger the temperature difference calculated by the temperature difference calculation circuit (16), the faster the rotation speed of the indoor fan motor (17).

The second temperature sensor (14) also serves as the temperature sensor (1) in FIG. 4 showing a conventional example.
) is compared with a set temperature, and the operation of the compressor motor (4) of the outdoor unit (21) shown in FIG. 2 is controlled based on the comparison output.

In Figure 2, (22) is a wind direction control plate that can be rotated within a predetermined range around a rotation axis (23), (24) is a wall that separates indoors and outdoors, (25) is the ground, (26) is represents the floor.

Next, the operation of the above embodiment will be explained.

(a) Indoor temperature around the remote control transmitter (5) and indoor unit (6) T1. T2 are the first and second temperature sensors (
7) Detected by (14).

(b) Indoor temperature T1 detected by the first temperature sensor (7)
is sent to the infrared light emitting element (1o) via the temperature detection circuit (8) and the infrared code generation oscillation circuit (9).

An infrared light signal (11) corresponding to the indoor temperature T1 is transmitted from this infrared light emitting element (10) to an infrared receiving circuit (12) of the indoor unit (6).

(c) The temperature data extraction circuit (13) outputs temperature data corresponding to the room temperature T1 to the temperature difference calculation circuit (16) based on the received signal of the infrared receiving circuit (12).

On the other hand, temperature data corresponding to the indoor temperature T2 detected by the second temperature sensor (14) is input to the temperature difference calculation circuit (16) via the temperature detection circuit (15).

(d) The temperature difference calculation circuit (16) calculates the temperature difference ΔT (=lT
□-T21) is calculated. The motor control circuit (19) is
Based on the calculation output of the temperature difference calculation circuit (16), the rotation speed of the indoor fan motor (17) is controlled via the motor drive circuit (20). For example, indoor fan motor (17)
is controlled according to the magnitude of the temperature difference ΔT as shown in the table below.

In other words, when the temperature difference T is small "0 to 1 degree", the rotation speed is slowed down to create a "weak wind", and when ΔT is "1 to 3 degrees",
As the temperature rises to 3 degrees or higher, the rotation speed is gradually increased to "medium wind" and "strong wind" to promote agitation of the indoor air and increase the indoor temperature around the remote control transmitter (5) and indoor unit (6). It acts in the direction of eliminating the difference.

As described above, the device of this embodiment compares the indoor temperature detected by the second temperature sensor (14) with the set temperature while reducing the indoor temperature difference, and controls the compressor motor (4) based on the comparison output. ) to control the indoor temperature to the set temperature.

In the above embodiment, the temperature sensor for detecting the indoor temperature for controlling the operation of the compressor motor is also used as the second temperature sensor of the indoor unit, but the present invention is not limited to this, and the remote control transmission The first temperature sensor may also be used as the first temperature sensor of the device. It may be provided separately from the second temperature sensor.

[Effects of the Invention] As described above, the temperature control device for an air conditioner according to the present invention includes first and second temperature sensors for indoor temperature detection provided in the remote control transmitter and the air conditioner body, respectively. ．． Second
The system is configured to control the rotation speed of the indoor fan mode sleeve based on the temperature difference in the room temperature detected by the temperature sensor, thereby reducing the temperature difference between the room temperature around the remote control transmitter and the room temperature around the air conditioner body. did. Therefore, the indoor temperature can be controlled to the set temperature by controlling the operation of the compressor motor while reducing the temperature difference in the room. Therefore, the temperature difference in the room can be reduced, improving the comfort of the living space, and since the compressor motor will not be operated more than necessary, the efficiency of heating and cooling operation can be improved. .

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the temperature control device for an air conditioner according to the present invention, Fig. 2 is a schematic diagram of the arrangement of a remote control transmitter and the air conditioner, and Fig. 3 is an electric circuit diagram showing a conventional example. It is. (4)...Compressor motor, (5)...Remote control transmitter, (6)...Indoor unit (air conditioner body), (7)...
...first temperature sensor, (14)...second temperature sensor,
(16)... Temperature difference calculation circuit, (17)... Indoor fan motor, (18)... Rotation speed control circuit. Figure 3

Claims (1)

[Claims] (1) In an air conditioner that is remotely controlled by a remote control transmitter and in which the operation of a compressor motor is controlled based on a comparison output of a detected indoor temperature and a set temperature, a first air conditioner that detects the indoor temperature around the remote control transmitter; a temperature sensor, a second temperature sensor that detects the indoor temperature around the air conditioner main body, a temperature difference calculation circuit that calculates the temperature difference between the indoor temperatures detected by the first and second temperature sensors; 1. A temperature control device for an air conditioner, comprising: a rotation speed control circuit that controls the rotation speed of an indoor fan motor based on the output of the difference calculation circuit.