JPS6011042A - Air conditioner - Google Patents

Abstract

PURPOSE:To permit to effect the optimum air-conditioning by a method wherein first and second temperature sensitive elements are switched automatically based on a given condition in the air conditioner controlled by a remote controller transmitting an optical signal. CONSTITUTION:In case direct sun beams strike the first temperature sensitive element 1 of the remote controller or a heat source is placed near the remote controller, the receiving unit 11 of main body of the air-conditioning machine receives it and the data of temperature values from the first temperature sensitive element 1, inputted into a switching circuit 21, show an abnormal high temperature. Accordingly, the temperature values data become very higher than the same data from the second temperature sensitive element 17 and the switching circuit 21 decides that the remote controller is under an abnormal temperature condition when the difference of the temperature values becomes higher than a predetermined value whereby the output of the circuit 21 is switched to the temperature data from the second temperature sensitive element 17. Thereafter, when an user separates the remote controller from the abnormal temperature values data, transmitted from the first temperature sensitive element 1, become normal values, the switching circuit 21 recognizes them and returns the output thereof to the temperature values data from the first temperature sensitive element 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an air conditioner, and particularly to one controlled by a remote controller that transmits optical signals to the air conditioner itself.

(B) Prior Art Generally, an air conditioner has a remote controller equipped with a transmitting section that transmits an optical signal, and an air conditioner body equipped with a receiving section that receives the optical signal from the remote controller and controls the operation. In this case, the remote controller is equipped with a first temperature-sensing element that senses the ambient temperature, and the air conditioner body is equipped with a first temperature-sensing element that senses the temperature of the air to be conditioned. One of the temperature sensing elements is selected and the air conditioner is controlled based on temperature value data from this temperature sensing element. When control is performed based on the temperature value data of the first temperature sensing element, the temperature in the vicinity of the user can be sensed, but malfunctions may occur depending on the installation location of the remote controller. For example, when the remote controller is placed on a table, our laboratory detects the optimal temperature, but as time passes and the sun sets, the first temperature sensing element is exposed to direct sunlight, resulting in an abnormally high temperature value. was there. Therefore, it was necessary to constantly change the position of the remote controller or manually switch the temperature sensing element to the second temperature sensing element on the main body of the air conditioner. When this second temperature sensing element is used, there is a problem that the temperature in the vicinity of the user cannot be sensed, and only air conditioning with poor followability can be performed.

(c) Purpose of the Invention In view of the above problems, the air conditioner of the present invention automatically switches the first and second temperature sensing elements based on certain conditions to achieve optimal air conditioning. It is something.

B) Structure of the Invention The present invention provides an air conditioner having a remote controller equipped with a transmitter that transmits a signal, and an air conditioner main body equipped with a receiver that receives the signal from the remote controller and controls the operation. In the remote controller,
2 includes a first temperature sensing element that senses the ambient temperature and a transmission circuit that transmits temperature value data based on this temperature sensing element from a transmitter at a predetermined cycle, and the air conditioner main body detects the temperature of the air to be conditioned. a switching circuit that automatically selects a second temperature sensing element by comparing and calculating temperature value data based on the second temperature sensing element and temperature value data based on the first temperature sensing element input from the light receiving section; It is equipped with an operation control circuit that controls the operation based on the output data selected by this switching circuit, and allows optimal air conditioning to be achieved by selectively using the first and second temperature sensing elements. be.

(E) Embodiment Hereinafter, embodiments of the present invention will be explained based on FIG. 1 and FIG. 2. FIG. 1 temperature sensing element, which is connected to the power supply in series with the resistor (2). (3)
is an A/D (analog/digital) converter, and the first
The potential change at the connection point between the temperature sensing element (1) and the resistor (2) is input. (This is part of the 4th generation operation keys, and is used to start operation, set room temperature or humidity, and set timer time. (5) is the transmitter circuit 1, and part (4) of the operation keys
convert the parallel signal based on the base signal and the temperature value data from the A/D converter (3) into a serial signal and output it,
After a predetermined driving operation by the operation key part (4), a serial signal based on temperature value data is output at a predetermined period (approximately every 3 minutes). (6) is a transmitter that transmits an optical signal based on the signal from the transmitter circuit (5), and includes an infrared light emitting element (8), a switching transistor (9)
, aQ.

Figure 2 shows the electrical circuit diagram of the air conditioner main body, (11)
is a receiving unit that receives an optical signal from the remote controller, and is composed of an infrared light receiving element (1), a resistor (a), and a capacitor (14).
(16) is an amplifier (a converter that converts serial data from lω into parallel data), (17) is a second temperature sensing element, and is located near the air inlet of the main body of the air conditioner. The second temperature sensing element is installed in the air conditioner to sense the temperature of the conditioned air.Alternatively, the second temperature sensing element may be separated from the air conditioner main body using a lead wire and installed in any position.Q8 is the second temperature sensing element. 2 resistors connected in series with the temperature sensing element, σl is the A/D (analog/digital) converter, (
b) is a microprocessor, and consists of a switching circuit CH11 and an operation control circuit (221).This switching circuit c!1) receives temperature values from the first and second temperature sensing elements (1) and (17). The temperature value data given to the operation control circuit (2) is switched based on the data. In other words, ■ 1 is the case where there is no temperature value data of the first temperature sensing element (1) from the remote controller and the switching circuit c11) cannot input the temperature value data of the first #1 temperature element (1) for a predetermined time (approximately 12 minutes). Second
The temperature value data of the temperature sensing element (1?) is output to the operation control circuit (2), and when the temperature value data from the first temperature sensing element (1) is input, the temperature value of the first temperature sensing element (1) is output. Data is output to the operation control circuit (2nd side).

■If the temperature value data from the first temperature sensing element (1) is input and the following condition continues three times in a row, the second temperature sensing element (1)
Temperature value data from lη is output to the operation control circuit (2). (From the start of al operation until the compressor stops once (to avoid malfunction at startup) When the temperature value data from (1) deviates from the temperature value data from the second temperature sensing element by more than a predetermined value (±6 degrees).
It is determined that there is an abnormal condition such as the temperature sensing element (1) being exposed to direct sunlight. ) (C) When the temperature value data from the first temperature sensing element (1) indicates the upper limit value (35 degrees) or the lower limit value (5 degrees) (it is determined that there is an abnormality in the power supply voltage of the remote controller). If the conditions of (a), (b), and (cl) are no longer satisfied, the data is switched to the temperature value data of the first temperature sensing element (1).

The operation control circuit (2) controls the compressor (C), indoor fan (C), and outdoor fan (C) based on the temperature value data from the switching circuit Q1) to perform air conditioning operation. .

In addition, (E) is an operation switch provided on the air conditioner body, which includes an AC power supply switch, a cooling/heating operation selector switch, a filter sign reset switch, and the like.

When operating the air conditioner configured in this way, operate the operation key part (4) of the remote controller to send the temperature setting value etc. from the transmitter part (6) to the receiver α1) of the air conditioner main body. After sending the message to , press the operation key to start air conditioning operation. After this, even if the remote controller is placed on a table, the transmitting circuit (5) of the remote controller operates and the first temperature sensing element (
The temperature value data of 1) is serially transmitted from the transmitter (6). This serial data is sent to receiving section 0 of the air conditioner main unit.
After 1) is input, this serial data is converted into parallel temperature value data by converter α6). Switching circuit CI) between the temperature value data obtained by the first temperature sensing element (1) and the temperature value data obtained by the second temperature sensing element aη provided in the air conditioner body.
Enter. At this time, the first and second temperature sensing elements (1), (17
) is compared with the conditions (1) and (2) described above, and one of the temperature value data is output to the operating circuit (2).

Based on this temperature value data, the operating circuit (23 is the compressor (
c), an outdoor fan (goods), and an indoor fan (c) to perform air conditioning operation.

During such operation, for example, the first
When the temperature sensing element (1) is exposed to direct sunlight or a heat source is placed near the remote controller, the receiving section α1) of the air conditioner body receives the signal, and the switching circuit c! 1
) The temperature value data from the first temperature sensing element (1) indicates an abnormally high temperature.

Therefore, when this temperature value data becomes extremely higher than the temperature value data from the second temperature sensing element aD and this temperature value difference exceeds a predetermined value, the switching circuit (21) determines that the remote controller is under abnormal temperature conditions. and sends the output to the second temperature sensing element α
Switch to temperature value data from 7).

Therefore, normal air conditioning operation can be performed.

After this, when the user removes the remote controller from the abnormal temperature condition, the temperature value data sent from the first temperature sensing element (1) becomes a normal value, the switching circuit (2I) recognizes this and outputs it. This is to return the temperature value data from the first temperature sensing element (1).

Also, the location of the remote controller is incorrect (the transmitter
If the optical signal from 6) does not reach the receiving section 01) of the air conditioner body, the switching circuit (21) automatically transfers the temperature value data from the second temperature sensing element a7) to the operating circuit (company). This is what is output to.

In this way, the first temperature sensing element (1) of the remote controller
When there is an abnormality in the temperature value data from the second temperature sensing element (1'7), the operation is automatically switched to the temperature value data from the second temperature sensing element (1'7).

In the above embodiment, the conditions for switching the temperature value data from the first temperature sensing element (1) or the temperature value data from the second temperature sensing element (17) are limited to the above conditions. The present invention is not limited to this, and changes such as adding humidity conditions using a humidity sensor may be made.

(F) Effects of the Invention The present invention provides an air conditioner having a remote controller equipped with a transmitting section that transmits a signal, and an air conditioner main body equipped with a receiving section that receives the signal from the remote controller and controls the operation. In the remote controller, the remote controller includes a first temperature sensing element that senses the ambient temperature, and a transmission circuit that transmits temperature value data based on the temperature sensing element from a transmitter at a predetermined cycle, and the air conditioner main body is A second temperature sensing element that senses the temperature of the conditioned air is automatically selected by comparing and calculating the temperature value data based on this temperature sensing element and the temperature value data based on the first temperature sensing element inputted from the receiving section. Equipped with a switching circuit and an operation control circuit that controls operation based on the output data from this switching circuit, the temperature value of the second temperature sensing element is automatically changed even if the remote controller is placed down abnormally. It is possible to maintain normal operation by switching to operation based on data. In addition, since the first and second temperature-sensing elements switch automatically, there is no need to manually switch the temperature-sensing elements or move the remote controller. This can automatically prevent abnormal operation of the harmonizing device.

[Brief explanation of the drawing]

FIG. 1 is an electric circuit diagram of a remote controller according to an embodiment of the present invention, and FIG. 2 is an electric circuit diagram of an air conditioner body according to an embodiment of the present invention. (1)...first temperature sensing element, (5)...transmission circuit,
(6)...Sending section, (11)...Receiving section, α
η...Second temperature sensing element, Ql)...Switching circuit, (2
)...Operation control circuit. Figure 1

Claims (1)

[Claims] (1) In an air conditioner having a remote controller equipped with a transmitter that transmits a signal, and an air conditioner main body equipped with a receiver that receives the signal from the remote controller and controls operation, the remote controller The air conditioner body is equipped with a first temperature sensing element that senses the ambient temperature, and a transmission circuit that transmits temperature value data based on the temperature sensing element from a transmitter at a predetermined period, and the air conditioner main body is configured to detect the temperature of the conditioned air. a switching circuit that automatically selects a second temperature sensing element by comparing and calculating temperature value data based on the second temperature sensing element and temperature value data based on the first temperature sensing element inputted from the receiving section; An air conditioner comprising: an operation control circuit that controls operation based on output data selected by the switching circuit.