JP2578618B2 - Control device for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a control device for an air conditioner in which an operation unit and a control unit are wired-connected, which enables control from a wireless remote controller. An apparatus is provided.

(B) Conventional technology In general, a conventional example of such a device is disclosed in
No. 6342 and Japanese Utility Model Laid-Open No. 60-121349. The device described in this publication opens and closes a contact piece based on a signal from a dedicated remote controller, and controls power supply to a device via the contact piece. By using such a device, a device for which wireless control is not set can be remotely controlled by a wireless remote controller.

(C) Problems to be Solved by the Invention Such a conventional device requires a dedicated remote controller. For this reason, the number of remote controllers unnecessarily increases.
In general, the number of remote controllers for television, video, audio, home automation, etc. tends to increase in today's homes. Increasing the number was not a good thing. Attempts have been made to provide a single remote controller with the functions of a plurality of remote controllers, but there has been a problem that the operation becomes complicated.

In view of such a problem, the present invention provides an air conditioner control device that enables remote control without increasing the number of remote controllers.

(D) Means for Solving the Problems The present invention has an operation unit and a main control unit connected to the operation unit by wire, and controls the operation of the air conditioner based on the operation of the operation unit. In the control device of the machine, the receiving unit for receiving the wireless signal, the data indicated by the wireless signal and the data stored in advance in the second storage unit via the receiving unit are compared, and these two data match And a sub-controller that sometimes outputs an operation signal to the control unit.

(E) Function In the air conditioner configured as described above, if the specific signal of the existing remote controller is stored in the second storage unit, the operation of the air conditioner can be controlled using the remote controller. Things.

(F) Example Hereinafter, an example of the present invention will be described with reference to the drawings. Second
The figure is a schematic view of an air conditioner using an embodiment of the present invention, wherein 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger,
Is a capillary tube, 5 is an indoor heat exchanger, and 6 is an accumulator. These components are sequentially connected in an annular manner by a refrigerant pipe to constitute a refrigeration cycle. When the four-way valve 2 is in the state of the solid line shown in the figure, the refrigerant discharged from the compressor 1 flows as indicated by the solid line arrow, the refrigerant is condensed in the outdoor heat exchanger 3, and the refrigerant is condensed in the indoor heat exchanger 5. The refrigerant evaporates to cool the room. When the four-way valve 2 is in the state of the dotted line shown in the figure, the refrigerant discharged from the compressor 1 flows as indicated by the dotted line arrow, the refrigerant is condensed in the indoor heat exchanger 5, and the outdoor heat exchanger 3 The refrigerant evaporates to heat the room.

Reference numerals 7 and 8 denote an outdoor blower and an indoor blower, which blow air to the outdoor heat exchanger 3 and the indoor heat exchanger 5, respectively.

FIG. 1 is a main part control circuit diagram used in the refrigeration cycle shown in FIG. 2, and is configured as follows. Reference numeral 9 denotes a push-type switch, which outputs a signal for switching operation start / stop of the air conditioner each time the switch is pressed. Reference numeral 10 denotes a changeover switch for switching between a cooling mode C, a heating mode H, a cooling / heating mode automatic switching C / H, and a blowing mode F. The changeover switch 10 uses a gray code output switch. Reference numeral 11 denotes a room temperature setting device for determining a desired set temperature. This setting device 11 consists of gray code output switches, and each code has 18
To 28 set temperatures correspond to each other.

12 is a microprocessor (microcomputer). The pressing and setting states of the switch 9, the changeover switch 10, and the room temperature setter 11 are determined by inputting signals output from the output ports R ₁ , R ₃ of the microcomputer 12 to input ports K ₁ , K ₂ , K ₄ , K ₈ , J ₁ , by scanning with J ₂ enter the microcomputer 12, and to correspond to a particular address stores.

Reference numeral 13 denotes a temperature detector whose internal resistance value changes according to the temperature and is provided at a position where the temperature of the conditioned room can be detected. The temperature detector 13 is connected to the input port A ₃ one end of the microcomputer (analog input terminal), connects the other end to the constant-voltage power supply V _SS. The microcomputer 12 inputs the current corresponding to the temperature of the conditioning chamber from the input port A ₃ in each period of the program, stores the data value based on the current A / D (analog / digital) conversion to. At this time, the data value is input a plurality of times, the average value is stored as the temperature value of the conditioned room, and the temperature is controlled based on the stored value.

14 to 20 are light-emitting elements for room temperature display at 15 ° C. and 1
The light emitting element provided at the position corresponding to the scale of 7 ° C., 19 ° C., 21 ° C., 23 ° C., 25 ° C., and 27 ° C. and corresponding to the scale closest to the temperature value of the conditioned room is turned on.

Reference numeral 21 denotes a light emitting element for displaying "prevention of cold air", which is turned on when the temperature of the indoor heat exchanger 5 shown in FIG. This temperature is calculated using a microcomputer similar to the method for inputting the temperature value of the conditioned room for the temperature detector 22.
Is input from the input port A ₄ of 12.

Reference numerals 23, 24, and 25 denote light emitting elements for displaying "cooling / heating mode automatic switching", "cooling mode", and "heating mode", respectively, and are provided near these display characters. These light emitting devices
23, 24 and 25 are lit according to the set value of the changeover switch 10.
When the changeover switch 10 is set to the "blowing mode F", the light emitting element 24 for displaying the "cooling mode" is turned on.

The light emitting element 14 to 21 and the light emitting element 23 or 25 is carried out lights with dynamic lighting using an output port R ₀ to R ₃ and the display port O ₀ to O ₆ of the microcomputer 12. still,
26 to 29 are inverter circuits.

Reference numerals 30 to 33 denote relays for controlling the energization of the compressor 1, the indoor blower 8, the outdoor blower 7, and the four-way valve 2 shown in FIG. One end of each of the relays 30 to 33 is connected to an output port of the microcomputer 12 through an inverter circuit 34 to 37.
It is connected to R ₈ , R ₁₂ , R ₁₀ , and R ₉ , and the other end is connected to a constant voltage circuit of DC 24 [V].

Reference numeral 38 denotes an oscillation circuit, which includes a crystal oscillator, a resistor, and a capacitor, and supplies a reference clock of the microcomputer 12 to the input ports OCS1 and OCS2.

Note that the constant voltage circuit that outputs the constant voltages V _SS , DC 24, V _ASS , and V _REF can use a normal power supply circuit, and a description thereof will be omitted. V _ASS and V _REF are the upper limit voltage and the lower limit voltage of the A / D conversion operation of the microcomputer 12. Further, a terminal INLT is a power reset terminal, and inputs a signal for performing a reset process of the microcomputer 12 when the power is turned on. This signal only needs to be output when the output of the power supply circuit exceeds a certain voltage value when the power is turned on.

Reference numeral 39 denotes a housing housing the wireless signal receiving unit 40 and the sub control unit 41, and is configured as follows. Receiver 40
Encodes a signal from a wireless remote controller 42 (for example, any remote controller for television, video, audio, etc., if specified by the Association of Home Appliances) and outputs it to the sub-control unit 41. 42,43
Are indicators whose lighting is controlled by the sub-control unit 41, and represent a power supply display and an operation display. Although the power of the unit 39 is obtained from the main body side of the air conditioner via the connector 44, a dry battery or a separate power supply circuit may be provided inside the unit 39. Reference numerals 45 and 46 denote photocouplers, respectively, which are connected to the microcomputer 12 via a connector 47 (HA terminal). The photocoupler 45 short-circuits the terminals “1” and “2” of the connector 47 according to the output from the sub control unit 41. That is, the state becomes the same as when the switch 9 is pressed, and the operation start / stop signal is output to the microcomputer 12. The photocoupler 46 outputs a signal to the sub control unit 41 when a voltage is applied between the terminals “3” and “4” of the connector 47. That is, this signal indicates the operating state of the air conditioner, and the control unit 41 turns on the display 43 according to this signal. 48 is a data setting switch.

Figure 3 is a functional diagram illustrating the functions when using the microcomputer control unit 41 shown in FIG. 1, 49 denotes an input control section of the data code, a voltage is applied to the terminal I ₀ when, that is, when the data setting switch 48 is closed to store the data code to be input from the terminal I ₁ to the second storage unit 50, a data code to be input from the terminal I ₁ when the switch 48 is open the you are 1 is stored in the storage unit 51. Reference numeral 52 denotes a determination unit which is provided when the data code stored in the first storage unit 51 matches the data code stored in the second storage unit 50 (actually, the data code is input twice within a predetermined time). and both times when matched) to output one pulse from the terminal P _1. 53 is a signal input unit, receives the output of the photocoupler 46 from the terminal I _2, the output unit 54 in response to the output holds the lighting of the indicator 43.

FIG. 4 is an operation explanatory diagram showing main operations of the sub control unit 41 shown in FIG. First it is determined whether there is an input of the wireless signal in step S _1, when there is a signal input determines whether or open data setting switch 48 at step S ₂ is closed. Step when switch 48 is closed
At S ₃ is stored in the second storage unit converts the wireless signal into data. Step when switch 48 is open
Stored in the first storage unit converts the wireless signal to the data at S _4. Step after storing data in step S ₄
At S _5, the data stored in the first storage unit and the data stored in the second storage unit determines whether match. Step when a match of the data in step S _6, S ₇ When these data coincide, it is judged whether performed twice within a predetermined time (about 3 seconds), the data matching is performed twice It advances to S _8. In step S ₈ outputs one pulse from the terminal P _1. Thus, the same operation as when the switch 9 is pressed is obtained.

Note that the operation of the microcomputer 12 shown in FIG. 1 can use the operation of a normal air conditioner, and a description thereof will be omitted.

The specific operation of the air conditioner configured as described above will be described below. First, since it is necessary to set data in the second storage unit, the data setting switch 48 is closed, and a specific signal is output from the remote controller 42 to the reception unit 40. For example, it outputs a designation signal of a channel (for example, 5 channels) not used for broadcasting by a television remote controller, a VTR video / television switching signal, and the like, and stores the data of this specific signal in the second storage unit.

If an operation unit including the switches 9 and 10 and the setting device 11 is used, the operation control of the air conditioner can be normally performed. Next, the user operates the remote controller 42 (remote control for the television) to send the “5 channel designation signal” within 3 seconds.
Output, the sub-control unit 41 confirms this operation and operates /
A stop signal is output to start or stop the operation of the air conditioner. Thus, the operation of the air conditioner can be controlled even by using the existing remote controller.

(G) Effects of the Invention The present invention relates to a control device for an air conditioner having an operation unit and a main control unit connected to the operation unit by wire, and controlling the operation of the air conditioner based on the operation of the operation unit. A receiving unit for receiving a wireless signal, and comparing the data indicated by the wireless signal with data stored in advance in the second storage unit via the receiving unit. A sub-control unit for outputting an operation signal is provided, so that the operation of the air conditioner can be controlled using an existing remote controller storing data in the second storage unit in addition to the operation of the operation unit. is there. Therefore, the remote control of the air conditioner can be easily performed using the existing wireless remote controller.

[Brief description of the drawings]

1 is a main part control circuit diagram used in the refrigeration cycle shown in FIG. 2, FIG. 2 is a refrigeration cycle diagram of an air conditioner using an embodiment of the present invention, and FIG. FIG. 4 is a functional explanatory diagram of the control unit, and FIG. 4 is an operation explanatory diagram showing main operations of the sub-control unit shown in FIG. 12: microcomputer, 40: receiving unit, 41: sub-control unit.

Claims (2)

(57) [Claims] A control device for an air conditioner, comprising: an operation unit; and a main control unit connected to the operation unit by wire, and controlling operation of the air conditioner based on operation of the operation unit.
A receiving unit for receiving a wireless signal; comparing data indicated by the wireless signal with data stored in advance in a second storage unit via the receiving unit; A control device for an air conditioner, comprising: a sub-control unit that outputs a signal. 2. The control device for an air conditioner according to claim 1, wherein the receiving unit and the sub-control unit are provided separately from a main body of the air conditioner in a single housing.