JPS6054567B2 - Wireless remote control air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an air conditioner that is controlled wirelessly and remotely, and when the wireless transmitter becomes unusable due to a dead battery or a malfunction, the air conditioner itself starts and stops the operation. The present invention also relates to a wireless remote control air conditioner that allows temperature setting and temperature control.

In general, most wireless transmitters are battery-operated, and the batteries tend to run out during use, and because they are so handy, they can break down if dropped.

In such a case, the receiver must be able to temporarily operate, control, and stop the receiver without relying on the transmitter until it obtains a battery for the transmitter or until the failure is repaired. Conventionally, some wireless air conditioner control devices have a room temperature sensor on the transmitter side and emit a compressor operation control signal to the air conditioner body (hereinafter referred to as the body), but in this case, the transmitter If the air conditioner becomes unusable, it has the disadvantage that the compressor operation cannot be controlled because the main unit does not have a room temperature sensor, and the air conditioner cannot be operated. In addition, the main body has a room temperature sensor,
Some models also have a room temperature control dial on the main unit, and the transmitter only sends start/stop signals, but in this case,
Even if the transmitter cannot be used, normal operation is possible by simply providing a start/stop switch on the main unit, but even if the transmitter can be used, it is still necessary to go to the main unit every time you need to change the room temperature. I had to move the climate control dial,
It was an inconvenience.

Furthermore, the main body has a room temperature sensor, the transmitter is equipped with operation/stop and temperature adjustment means, and the main body is equipped with operation buttons for the same operation/stop and temperature adjustment means as the transmitter, so that the transmitter cannot be used. There are some air conditioners that can handle the situation when it gets hot.
This has the problem of increased costs because the operation buttons are completely duplicated. The present invention solves the problems of the various methods described above, and attempts to provide a wireless remote control air conditioner that allows you to start/stop and set the temperature with a single touch on the main body side even if the transmitter becomes unusable. It is something.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an air conditioner main body, which has an air outlet 2 and a transparent panel 3 on the front surface of the main body. An indicator light 4 is placed on the front of the panel 3, and an operation switch 5, which is an operation means, and a stop switch 6, which is a stop means, are arranged on the bottom surface of the main body 1, and the corner part is used as a receiver for receiving transmitted wireless signals. It forms a window 7. In FIG. 2, 8 is a wireless transmitter, which has a battery case on the bottom, an operation panel 10 on the top, and a transmission window 11 on the front. The operation panel 10 has a temperature control dial 12, a run button 13, a stop button 14, and a temperature of 28°C during cooling and 18°C during heating.
An energy saving operation button 15 and the like for fixing the set temperature are arranged. FIG. 3 is an internal sectional view of the panel 3, in which a receiving element 16 is fixed at the back of the receiving window 7. The operation switch 5 and the stop switch 6 are bush-operated switches. FIG. 4 is a circuit block diagram of the wireless transmitter 8, in which the temperature control dial 12, operation button 13, stop button 14, energy saving operation button 15, etc. form a keyboard matrix 17, which is input to a code generation circuit 18. The output of the code generation circuit 18 is transmitted to the pulse modulation circuit 1
9, the signal is amplified by an amplifier circuit 20, and the signal is sent into the air from a transmitting element 21 in the form of light or sound. FIG. 5 is a receiving control circuit diagram of the main unit 1 of the air conditioner, and 16 is a receiving element that receives the transmitted signal.The received signal converted into an electrical signal is passed through the amplifier circuit 22 and the detection circuit 23. , are input to the code decoding circuit 24. Here, the receiving element 16, the amplifier circuit 22, the detection circuit 23, . The code decoding circuits 24 are collectively referred to as a receiving circuit 25. The temperature adjustment signal 26 output from the receiving circuit 25 is output in several pulses corresponding to the position of the temperature adjustment dial 12 of the wireless transmitter 8, and is converted into 4-beat data by a counter 27 (such as NEC's μPD452OC). converted, 4-bit latch 28 (NEC
The data is held in a PPD4O42C (PPD4O42C, etc.) made by the company. This 4-bit data is input to an analog switch 30 (such as μPD4O66C manufactured by NEC Corporation) through a converter circuit 29. Both ends of each of the temperature setting resistors 31a to 31e are short-circuited or opened by the analog switch 30, thereby forming a digital volume. 31f is a semi-fixed volume for error adjustment.

Here, the analog switch 30 is driven with a voltage (DC12V) higher than the other circuit voltage (DC5V) in order to reduce the on-resistance of this output (resistance when the switch part is short-circuited), and the converter l in the preceding stage circuit 2
9 converts the 4-bit data from the other circuit voltage (DC5V) to the drive voltage of the analog switch 30 (DC12V).
Voltage conversion is being carried out to increase the voltage. Here, a counter 27, a 4-bit latch 28, a converter circuit 29, an analog switch 30, and temperature setting resistors 31a to 31
e and the semi-fixed volume 31f form a temperature setting circuit 32. The energy saving operation signal 33 for fixing the temperature setting output from the receiving circuit 25 is output as a single pulse in response to the operation of the energy saving operation button 15 of the transmitter 8,
3C, etc.) is inverted for each single pulse.
The output of the D flip-flop 34 is input to another analog switch 36 through a converter circuit 35 which performs voltage conversion for the same reason as described above. Both ends of each of the energy saving setting resistors 37a to 37c are short-circuited and opened by the analog switch 36. During normal operation without energy-saving settings, the temperature setting resistors 31a to 31e, the semi-fixed volume 31f (hereinafter collectively referred to as digital volume 31a to 31f), and the indoor temperature detector 38 are controlled by the analog switch 36. It is shorted,
The voltage level generated here is input to a comparator 39, which compares it with the reference voltage output from each of the reference voltage generating resistors 40a to 40f, and inputs it to the operation switching circuit 41. During the energy saving setting, the temperature setting is fixed by the resistor 37c instead of the digital volume controls 31a to 31f, and the reference voltage level is set to the energy saving setting by the resistors 37a to 37b. The operation signal 42 is output as a single pulse from the receiving circuit 25 in response to the operation of the operation button 13 of the transmitter 8, and is input to the reset terminal of the counter 27 and also to the delay circuit 43. Delay circuit 43
outputs a pulse output that is sufficiently delayed with respect to the operating signal 42 and temperature control signal 26, and controls the clock terminal of the 4-bit latch 28, the operating set terminal of the NAND gate flip-flop 44, and the energy saving setting of the D flip-flop 34. Input to each terminal to be reset. The stop signal 45 is output as a single pulse from the receiving circuit 25 in response to the operation of the stop button 14 of the wireless transmitter 8, and is input to a terminal for resetting the operation of the N,AND gate flip-flop 44. The output of the NAND gate flip-flop 44 is input to the operation switching circuit 41, and the operation switching circuit 41 controls the operation of the compressor, fan, etc. (not shown) of the air conditioner main circuit 46. The operation switch 5 provided on the air conditioner body 1 is connected to the operation set terminal of the NAND gate flip-flop 44 and the terminal for setting the energy saving setting of the D flip-flop 34, and the stop switch 6 is connected to the operation reset terminal of the NAND gate flip-flop 44. I am typing. capacitor 47
and resistor 48 are for initial reset when the power is turned on. Next, the operation will be explained based on the above configuration.

Normally, if a wireless transmitter 8 is available, the transmitter 8
Place the temperature adjustment dial 12 at the position where you want to set the temperature, press the operation button 13, and when the signal is received, the reception circuit 25 first outputs a pulse of the operation signal 42, and then the temperature adjustment signal 26 corresponds to the temperature adjustment dial 12. It is output in several pulses. The counter 27 receives the operation signal 42
4-bit data is set in accordance with the number of pulses of the temperature adjustment signal 26 that will be reset next. When the data is set in the counter 27, the 4-bit latch 28 holds this data by outputting the operating signal through the delay circuit 43. Using this held data, the analog switch 30 sets the resistance values of the digital volumes 31a to 31f, and the temperature setting circuit 32 is set. Next, the output of the delay circuit 43 sets the NAND gate flip-flop 44 to "operation" and resets the D flip-flop 34 for fixing the temperature setting. It is connected to the circuit 38 through an analog switch 36, is compared with a reference voltage through a comparator 39, and is connected to the NAND gate flip-flop 44.
Together with the 6° operation '2 setting, the operation switching circuit 41 controls the operation of the air conditioner main circuit 46. Also, when the stop button 14 is pressed on the wireless transmitter 8, a pulse of the stop signal 45 is outputted when the signal is received, and the NAND gate flip-flop 4
4 is reset, and the operation switching circuit 41 stops the operation of the main body circuit 46.Next, if the transmitter 8 becomes unusable due to a dead battery or a malfunction, the air conditioner main body 1
Only the run/stop switches 5 and 6 are dependent. When the operation switch 5 is pressed, this switch output sets the NAND gate flip-flop 44 to ゜6 operation'' at the rising edge of the signal, and further sets the D flip-flop 34 to the ``゜energy saving setting''. The switch A36a and the switch C36c are short-circuited, and the switch B36b and the switch D36d are opened.As a result, the room temperature detector 38 is disconnected from the temperature setting circuit 32 by the switch D36d, and is electrically connected to the energy saving setting resistor 37c by the switch C36c. Furthermore, the reference voltage level input to the comparator 39 is also set by the switch A.
Both ends of the resistor 37a are short-circuited by the switch B36a, and both ends of the resistor 37b are not short-circuited by the switch B36b.
The reference voltage input to the comparator 39 becomes the energy saving setting voltage level. As a result, the operation switching circuit 41 performs operation control on the main body circuit 46 with the temperature setting fixed to the energy saving setting. Furthermore, when the stop switch 6 is pressed, the "° operation" of the NAND gate flip-flop 44 is reset at the rising edge of this output, and the operation switching circuit 41 stops the operation of the main circuit 46. In this way, the wireless transmitter 8
Even if it becomes unusable, the operation switch 5 on the main unit
It can be operated with just one push of a button, and energy-saving temperature settings can be made, making it easy and convenient to operate. Furthermore, since the operation is a one-bush type, even if the air conditioner main body 1 is installed at a high position, it can be operated with the tip of a stick if it is out of reach, and the main body 1 can be installed in either a high place or a low place. As mentioned above, according to the present invention, even if the wireless transmitter becomes unusable due to a dead battery or malfunction, the air conditioner itself can start, stop, and even design a predetermined temperature, allowing temperature-controlled operation. This eliminates the need to adjust the temperature every time, making it easy to operate and extremely convenient.

Furthermore, since the main unit can be configured with only a switch for starting and stopping, operation, temperature control, and stopping can be performed with a simpler structure than the transmitter's operating section, and the structure can be constructed at low cost.

[Brief explanation of drawings]

Fig. 1 is an external view of the main body of a wireless remote control air conditioner according to an embodiment of the present invention, Fig. 2 is an external view of the transmitter, Fig. 3 is a sectional view of the inside of the panel of the air conditioner main body, and Fig. 4 is the transmitter. FIG. 5 is a receiving control circuit diagram of the air conditioner main body. 1... Air conditioner body, 5... Operating means (
operation switch), 6...stop means (stop switch), 8...wireless transmitter, 12...
・Temperature control dial, 13... Operation button, 1
4... Stop button, 25... Receiving circuit, 32
...Temperature setting circuit, 34...D flip-flop, 34, 36...Temperature setting fixing means (
34...D flip-flop, 36...
Analog switch), 38... Indoor temperature detector, 41... Operation switching circuit, 42... Operating signal, 44... OR circuit (NAND gate flip-flop) .

Claims (1)

[Claims] 1. A wireless transmitter with operation/stop and temperature adjustment means, and a signal from the operation/stop/temperature adjustment means of the transmitter is received on the air conditioner body side, and the respective operation/stop/temperature adjustment means are received.
A receiving circuit that outputs a temperature adjustment signal, a temperature setting circuit that is set by the temperature adjustment signal, an air temperature detector that detects the indoor temperature, and an operation/control circuit that outputs the temperature adjustment signal.
an operation switching circuit that compares a stop signal with a signal from the room temperature detector and the temperature setting circuit to switch and control the operating state of the air conditioner; an operation and stop means provided in the air conditioner body; and an operation of the body. and temperature setting fixing means for making the output of the stopping means correspond to the operation and stop signals outputted from the receiving circuit, taking a logical sum, and fixing the temperature setting circuit at a certain value with the output of the operating means of the main body. Wireless remote control air conditioner.