JP3861918B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner including a ventilation unit that ventilates a room.

  Conventionally, an air conditioner in which an outdoor unit and an indoor unit are connected by an air supply / exhaust pipe, and one end of the air supply / exhaust pipe is connected to a suction side and a discharge side of a blower provided in the outdoor unit by a damper. Is disclosed (see JP 2003-176944 A: Patent Document 1).

  In the conventional air conditioner, at the first switching position of the damper, the supply / exhaust pipe is connected to the suction side of the blower, and the blower sucks room air through the supply / exhaust pipe and the indoor unit. Drain outside. On the other hand, at the second switching position of the damper, the air supply / exhaust pipe is connected to the blowing side of the blower, and the blower supplies outdoor air into the room through the air supply / exhaust pipe and the indoor unit. Thus, indoor air is exhausted to the outside by the air conditioner, or outdoor air is supplied to the room to perform indoor ventilation operation.

  In addition, the air conditioner receives an operation state command from an operator and transmits a signal corresponding to the command to the indoor unit, and the air conditioner operation state according to the signal from the remote controller. A control unit for controlling. When the operator commands the remote controller to perform a ventilation operation, a control unit that receives a signal from the remote controller controls the damper and the blower to perform the ventilation operation.

  However, when a power failure occurs during the ventilation operation, the conventional air conditioner may be in a stopped state even if the power failure is eliminated and cannot return to the ventilation operation before the power failure. In addition, if the battery of the remote controller is replaced during ventilation operation, the remote controller may return to the initial state, the initial state signal may be transmitted to the indoor unit, and the air conditioner may stop. .

  Recently, due to the revision of the Building Standards Law, as a general rule, installation of mechanical ventilation equipment has become mandatory for all buildings as a countermeasure against so-called sick houses.

However, as described above, the conventional air conditioner may stop the ventilation operation despite not receiving the instruction to stop the ventilation operation by the operator, as described above. There is a problem that it cannot function as a ventilation facility.
JP 2003-176944 A

  Therefore, an object of the present invention is to provide an air conditioner that can prevent the inconvenience of stopping the ventilation operation even though the operator has not received the instruction to stop the ventilation operation.

In order to solve the above problems, the air conditioner of the present invention is
A ventilation section for ventilating the room;
A first non-volatile memory for storing operation information indicating an operation state of the ventilation unit during the previous operation;
A control unit that controls the operation of the ventilation unit based on the operation information stored in the first non-volatile memory at the time of operation this time ,
A first non-volatile memory; a receiving unit that receives a command signal for instructing an operation state of the ventilation unit; and a transmission unit that transmits an operation information signal indicating the operation information stored in the first non-volatile memory. Indoor unit,
A remote controller having a transmitter for transmitting the command signal and a receiver for receiving the operation information signal stored in the first nonvolatile memory;
With
When the remote controller returns to the initial state, the remote controller transmits and receives the operation information signal described in the first nonvolatile memory and stores the same information as the operation state stored in the first nonvolatile memory of the indoor unit. In other words, there is no discrepancy in operation information between the remote controller and the indoor unit at least when power is restored .

  According to the above configuration, when the ventilation unit is in the operating state during the previous operation, the control unit stores the operation information stored in the first nonvolatile memory during the current operation and based on the operation information indicating the operation state. Thus, the operation of the ventilation unit is controlled to the operating state. For example, by controlling the ventilation section so that the operation state is the same as the operation state at the time of the previous operation, even when the ventilation operation is stopped due to a power failure, for example, the ventilation operation is resumed at the current operation after the power failure is restored be able to. Therefore, it is possible to prevent the inconvenience that the ventilation operation is stopped although the ventilation operation stop command is not received as in the prior art.

A command signal is transmitted from the transmission unit of the remote controller based on the operator input to the remote controller. The command signal is received by the receiving unit of the indoor unit, and the ventilation unit is controlled to an operation state corresponding to the command signal.

  Moreover, the driving | operation information signal which shows the driving | operation information memorize | stored in the 1st non-volatile memory of the said indoor unit is transmitted by the transmission part of the said indoor unit. This driving information signal is received by the receiving unit of the remote controller. Therefore, the remote controller can obtain the same information as the operation information stored in the first non-volatile memory of the indoor unit even when the remote controller returns to the initial state, for example, by replacing the battery. It is possible to prevent a discrepancy in driving information with the aircraft. Therefore, the command signal of the initial state is transmitted to the indoor unit from the remote controller that has returned to the initial state even though the command to stop the ventilation operation is not input to the remote controller, and the operation of the ventilation unit is stopped. Inconvenience can be prevented.

The air conditioner of one embodiment is
An outdoor unit (2) having a second non-volatile memory (23) for storing operation information of the ventilation unit (6) at the previous operation is provided.

  According to the embodiment, since the operation information of the ventilation unit at the previous operation is stored in the second nonvolatile memory of the outdoor unit, the operation of the first nonvolatile memory due to, for example, failure or replacement of the indoor unit In preparation for the loss of information, etc., the operation information of the ventilation section can be backed up.

In the air conditioner of one embodiment, the remote controller is
A third non-volatile memory for storing operation information of the ventilation unit during the previous operation;
The transmission unit transmits an operation information signal indicating operation information stored in the third non-volatile memory to the indoor unit.

  According to the embodiment, the operation information of the ventilation unit at the previous operation is stored in the third nonvolatile memory of the remote controller. An operation information signal indicating the operation information stored in the third nonvolatile memory is transmitted to the indoor unit by the transmission unit. Thereby, for example, in preparation for the disappearance of the operation information of the first or second nonvolatile memory due to replacement of electrical components or other causes, the operation information of the ventilation unit at the previous operation can be backed up.

The air conditioner of one embodiment stores an operation information signal indicating operation information at the time of the previous operation of the ventilation unit stored in the second nonvolatile memory in the first nonvolatile memory.
The air conditioner of one embodiment is
The control unit
When there is a ventilation on command signal from the remote controller, ventilation on is stored in both the first nonvolatile memory and the second nonvolatile memory, but no ventilation on signal is received from the remote controller. And when it is determined that the first non-volatile memory does not store ventilation ON and the second non-volatile memory determines that ventilation ON is stored, the first non-volatile memory While remembering the ventilation on
When it is determined that the content of the command signal is ventilation off, the ventilation on operation is performed when the first nonvolatile memory stores the ventilation on with reference to only the first nonvolatile memory.

  In the air conditioner of one embodiment, the control unit is a case where the reception unit of the indoor unit does not receive a command signal for instructing execution of ventilation of the ventilation unit during the current operation, and the first nonvolatile When the operation state of the ventilation unit at the previous operation indicated by the operation information stored in the volatile memory, the second non-volatile memory, or the third non-volatile memory is the execution of ventilation, based on the stored operation information Then, the operation of the ventilation unit is controlled so that the operation state is the same as the previous operation state.

According to the embodiment, when the reception unit does not receive a command signal for instructing the ventilation of the ventilation unit during the current operation, the first nonvolatile memory, the second nonvolatile memory, or the third nonvolatile memory. The driving information stored in is referred to. When the operation state of the ventilation unit at the previous operation indicated by the operation information stored in the first non-volatile memory, the second non-volatile memory, or the third non-volatile memory is the execution of ventilation, the stored information is stored. Based on the operation information, the operation of the ventilation unit is controlled so that the operation state is the same as the previous operation state. Therefore, for example, when the previous operation is stopped due to a power failure or the like, the ventilation operation can be resumed in the same manner as the previous operation without receiving an instruction to execute ventilation by the operator when the current operation is resumed. In addition, the said control part may control the driving | operation of the said ventilation part so that it may become the driving | running state same as at least one driving | running state among the driving | running states at the time of last driving | running | working this time.
The air conditioner of the present invention is
A ventilation section for ventilating the room;
A first non-volatile memory for storing operation information indicating an operation state of the ventilation unit during the previous operation;
A control unit for controlling the operation of the ventilation unit based on the operation information stored in the first non-volatile memory during operation this time;
With
A first non-volatile memory; a receiving unit that receives a command signal for instructing an operation state of the ventilation unit; and a transmission unit that transmits an operation information signal indicating the operation information stored in the first non-volatile memory. Indoor unit,
A remote controller having a transmitter for transmitting the command signal and a receiver for receiving the operation information signal;
With
An outdoor unit having a second non-volatile memory for storing operation information of the ventilation unit at the previous operation is provided.
The air conditioner of the present invention is
A ventilation section for ventilating the room;
A first non-volatile memory for storing operation information indicating an operation state of the ventilation unit during the previous operation;
A control unit for controlling the operation of the ventilation unit based on the operation information stored in the first non-volatile memory during operation this time;
With
A first non-volatile memory; a receiving unit that receives a command signal for instructing an operation state of the ventilation unit; and a transmission unit that transmits an operation information signal indicating the operation information stored in the first non-volatile memory. Indoor unit,
A remote controller having a transmitter for transmitting the command signal and a receiver for receiving the operation information signal;
With
The remote controller includes a non-volatile memory for storing operation information of the ventilation unit at the previous operation.
The air conditioner of one embodiment is
The remote controller transmits an operation information signal indicating an operation state at the time of the previous operation of the ventilation unit stored in the nonvolatile memory of the remote controller to the indoor unit.

  As described above, the air conditioner of the present invention includes the ventilation unit that ventilates the room, the first nonvolatile memory that stores the operation information indicating the operation state of the ventilation unit during the previous operation, and the above operation, And a control unit that controls the operation of the ventilation unit based on the operation information stored in the first non-volatile memory. Therefore, even when the ventilation operation is stopped due to a power failure, for example, during the previous operation, Since the ventilation operation can be resumed during the operation this time, it is possible to prevent the inconvenience that the ventilation operation stops after the power failure recovery as in the prior art.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

(First embodiment)
FIG. 1 is a schematic view showing an air conditioner as a first embodiment of the present invention.

  The air conditioner includes an indoor unit 1 disposed on an indoor wall surface and the like, and an outdoor unit 2 disposed outside the room. The indoor unit 1 and the outdoor unit 2 include a refrigerant pipe 5, a supply / exhaust pipe 6, and the like. The connection wiring 8 is connected.

  The indoor unit 1 includes an indoor heat exchanger (not shown) to which refrigerant is supplied from the outdoor unit 2 through the refrigerant pipe 5 and a cross flow fan that guides wind to the indoor heat exchanger. Further, an opening communicating with the air supply / exhaust pipe 6 is provided on a wind passage generated by the cross flow fan, and outdoor air is supplied into the room through the opening, and indoor air is discharged to the outside. It is formed as follows.

  The indoor unit 1 includes an infrared transmission / reception unit 13 that transmits and receives an infrared signal to and from a wireless remote controller 3 as a remote controller to be described later. Specifically, the infrared transmission / reception unit 13 receives a command signal for instructing the operation state of the air conditioner such as the operation mode, the set temperature, the set air volume, and the wind direction from the wireless remote controller 3, while the wireless remote controller 3 receives the command signal. An operation information signal indicating the operation state of the air conditioner is transmitted. Thus, the infrared transmission / reception unit 13 functions as a reception unit and a transmission unit.

  The wireless remote controller 3 includes an input unit that is instructed and inputted by a room operator such as a set temperature, a set air volume, and a wind direction. The wireless remote controller 3 includes an infrared transmission / reception unit 31 that transmits and receives an infrared signal to and from the indoor unit 1. The wireless remote control 3 transmits a command signal corresponding to an input to the input unit to the indoor unit 1. An operation information signal related to the operation information is received from the indoor unit 1. Thus, the infrared transmission / reception unit 31 functions as a reception unit and a transmission unit.

  The indoor unit 1 includes a first EEPROM (Electrically Erasable Programmable Read-Only Memory) 11 as a first nonvolatile memory that stores operation information indicating the operation state of the air conditioner during the current operation.

  The indoor unit 1 includes an information communication unit that performs information communication with the outdoor unit 2, and transmits a command signal received from the wireless remote controller 3 to the outdoor unit 2. In addition, the information communication unit transmits an operation information signal indicating the operation information of the air conditioner during the current operation (the same information as the information stored in the first EEEPEOM 11) to the outdoor unit 2, and from the outdoor unit 2, An operation information signal related to the air conditioner at the previous operation is received.

  The outdoor unit 2 includes an outdoor unit 21 and a humidification unit 22. In the outdoor unit 21, a compressor that compresses the refrigerant, an expander that adiabatically expands and decompresses the refrigerant, an outdoor heat exchanger that exchanges heat between the refrigerant and outdoor air, and a direction of the flow of the refrigerant A four-way switching valve for switching between cooling operation and heating operation is accommodated. In addition, an electrical component is accommodated in the outdoor unit 21, and the electrical component includes a power supply circuit of the air conditioner and a control unit 7 constituted by a CPU. This CPU reads a control program stored in the ROM and executes control of the air conditioner. The refrigerant pipe 5 is connected to the outdoor unit 21 and is supplied with a refrigerant having a predetermined temperature and pressure by switching control of the four-way switching valve and capacity control of the compressor.

  On the other hand, in the humidification unit 22 of the outdoor unit 2, a humidification rotor formed of a moisture adsorbing material such as zeolite, a blower in which the humidification rotor is selectively connected to the suction side, and the supply and exhaust pipe 6 are provided. A connection damper that switches between the suction side and the blowout side of the blower is housed. At the first switching position of the connection damper, the air supply / exhaust pipe 6 is connected to the suction side of the blower, and the blower sucks room air through the supply / exhaust pipe 6 and the indoor unit 1 and discharges it outside the room. . On the other hand, at the second switching position of the connection damper, the air supply / exhaust pipe 6 is connected to the blowout side of the blower, and the blower supplies the outdoor air humidified via the humidification rotor or the humidification rotor. Outdoor air that does not pass is supplied to the room through the air supply / exhaust pipe 6 and the indoor unit 1.

  Thus, the indoor air is exhausted to the outside through the indoor unit 1, the air supply / exhaust pipe 6 and the outdoor unit 2, or the outdoor air is supplied into the room to perform the indoor ventilation operation. That is, an opening formed in the ventilation path of the indoor unit, a supply / exhaust pipe 6 communicating with the opening, a blower connected to the supply / exhaust pipe 6, and a connection damper for switching connection of the supply / exhaust pipe 6 to the blower And it constitutes the ventilation part.

  Further, the outdoor unit 2 includes an information communication unit that performs information communication with the indoor unit 1, and a command signal transmitted from the wireless remote controller 3 and received by the transmission / reception unit 13 of the indoor unit 1 is transmitted to the outdoor unit 2. The information is received from the information communication unit of the indoor unit 1. In addition, the information communication unit includes a second EEPROM 23 that stores the operation information at the time of the current operation received from the indoor unit 1.

  Based on a command signal from the indoor unit 1, the control unit 7 provided in the electrical components in the outdoor unit 21 controls the capacity and starts / stops the compressor, switches the four-way switching valve, and the blower. And the switching of the connection damper is controlled. The controller 7 controls the storage and reading of the air conditioner operation information in the first EEPROM 11, the transmission and reception to the wireless remote controller 3, and the storage and reading in the second EEPROM 23.

  The ventilation operation by the air conditioner having the above configuration will be described with reference to the flowchart of FIG. This flowchart shows processing executed by the control unit 7.

  First, the air conditioner is powered on and the air conditioner is activated (step S1). It is determined whether or not the control unit 7 is activated by turning on the power and receives a command signal for turning on the ventilation operation from the wireless remote controller 3 (step S2). When it is determined that the ventilation operation ON command signal has been received from the wireless remote controller 3, information indicating the ventilation operation ON is stored in the first EEPROM 11 of the indoor unit 1 (step S3). Subsequently, information indicating the ventilation operation on is stored in the second EEPROM 23 of the outdoor unit 2 (step S4).

  Subsequently, it is determined whether the command signal from the wireless remote controller 3 has contents indicating ventilation operation on or contents indicating ventilation operation off (step S5).

  When it is determined in step S2 that the ventilation operation ON command signal has not been received from the wireless remote controller 3, the information stored in the first EEPROM 11 of the indoor unit 1 is read, and whether the ventilation operation was ON during the previous operation. It is determined whether or not (step S7). If the stored information in the first EEPROM 11 is information on the ventilation operation ON, and if it is determined that the ventilation operation was ON during the previous operation, the process proceeds to step S5.

  On the other hand, if the information stored in the first EEPROM 11 is the ventilation operation OFF information in step S7, the information stored in the second EEPROM 23 is read to determine whether the ventilation operation was on during the previous operation ( Step S10). When the storage information of the second EEPROM 23 is information on the ventilation operation ON, and it is determined that the ventilation operation is ON during the previous operation, the information indicating the ventilation operation ON is stored in the first EEPROM 11 (step S11). Subsequently, operation information indicating ventilation operation ON is transmitted to the wireless remote controller 3 (step S12). Thereafter, the process proceeds to step S5.

  On the other hand, if the information stored in the second EEPROM 23 is information on ventilation operation OFF in step 10, the process proceeds to step S5.

  In step S5, if the command signal from the wireless remote controller 3 has contents indicating ventilation operation ON, the ventilation operation is executed (step S6). That is, the connection damper of the outdoor unit 2 is switched to connect the air supply / exhaust pipe 6 to the suction side or the blowing side of the blower, and the blower is started.

  In step S5, when the command signal from the wireless remote controller 3 has contents indicating ventilation operation OFF, it is determined whether or not the stored information in the first EEPROM 11 is ventilation operation ON (step S8). When the stored information in the first EEPROM 11 indicates that the ventilation operation is on, the process proceeds to step S6 and the ventilation operation is executed.

  On the other hand, if the stored information in the first EEPROM 11 is the ventilation operation OFF in step S8, the ventilation operation is stopped (step S9).

  After step S6 and step S10, the process returns to step S2, and it is determined whether or not a command signal for turning on the ventilation unit is received from the wireless remote controller 3.

  Thus, the air conditioner of this embodiment performs a ventilation operation according to the command signal from this remote control, when the operator inputs the ventilation operation to the remote control. On the other hand, even when the input to perform the ventilation operation is not input by the operator, when the ventilation operation was performed during the previous operation, based on the operation-on storage information stored in the first EEPROM 11 or the second EEPROM 23, Ventilation operation can be resumed. Therefore, even if the ventilation operation is stopped due to a power failure, for example, even if the operator does not input the ventilation operation ON, the same ventilation operation as the previous operation before the power failure must be resumed at the current operation after the power failure is restored. Can do. Accordingly, it is possible to effectively prevent the conventional inconvenience that the ventilation operation cannot be resumed after the power failure is restored even though the ventilation operation stop command is not received, and the vehicle is stopped. Note that the operation state such as the air volume and the wind direction other than the operation state may be returned to the initial state at the time of the current operation, or stored in the first EEPROM 11 at the previous operation as in the operation state, The same operating state may be reproduced.

  Moreover, since the signal which shows the operation information memorize | stored in the said 1st EEPROM11 about the operation information of the said ventilation part is transmitted to the wireless remote control 33, even when this wireless remote control 33 returns to an initial state by battery replacement etc., for example Thus, it is possible to prevent a difference in driving information between the indoor unit 1 and the wireless remote controller 3. Therefore, the inconvenience that the command signal in the initial state is transmitted to the indoor unit 1 and the operation of the ventilation unit is stopped even though the command to stop the ventilation operation is not input from the operator to the wireless remote controller 3 is prevented. it can.

  Further, since the operation information stored in the first EEPROM 11 of the indoor unit 1 is stored in the second EEPROM 23 of the outdoor unit 2 and is backed up, even if the operation information of the first EEPROM 11 is lost due to, for example, a failure or replacement of the indoor unit 1 The ventilation operation can be continued based on the operation information stored in the second EEPROM 23.

  As described above, the air conditioner according to the present embodiment receives a ventilation operation OFF command from the operator even when a power failure, a failure of the indoor unit 1, an initialization of the wireless remote controller 3, or the like occurs. The ventilation operation can be executed and continued under the power-on state. As a result, this air conditioner can function as a ventilation fan.

(Second Embodiment)
FIG. 3 is a schematic view showing an air conditioner according to another embodiment of the present invention.

  As in the air conditioner of the first embodiment, the air conditioner of the second embodiment includes an indoor unit 1 and an outdoor unit 2, a refrigerant pipe 5, a supply / exhaust pipe 6, and connection wiring as shown in FIG. 3. 8 and connected.

  The air conditioner of the present embodiment stores the operation information at the time of the current operation in the third EEPROM 33 in addition to the first EEPROM 11 and the second EEPROM 23. Thus, even if the operation information stored in the first and second EEPROMs 11 and 23 is lost due to a failure of the indoor unit or the outdoor unit, replacement of electrical components, etc., the previous time based on the operation information stored in the third EEPROM 33 Ventilation operation similar to that during operation is possible.

  In the present embodiment, the same reference numerals as those used in the first embodiment are used for the same components as those in the first embodiment, and detailed description thereof is omitted.

  In the air conditioner of the present embodiment, the wireless remote controller 3 has a third EEPROM 33, the operation information received from the indoor unit 1 is written into the third EEPROM 33, and the operation information transmitted to the indoor unit 1 is read from the third EEPROM 33. It is like that. The wireless remote controller 3 uses the infrared transmission / reception unit 31 that transmits and receives an infrared signal to and from the indoor unit 1, in addition to the command signal corresponding to the operator's input to the input unit, and the operation information read from the third EEPROM 33. Is transmitted to the indoor unit 1. The infrared transmission / reception unit 31 receives the operation information written in the third EEPROM 33 from the indoor unit 1. The wireless remote controller 3 also includes an input unit that is input by an operator in the room, like the wireless remote controller 3 of the first embodiment.

  In addition, the infrared transmission / reception unit 13 of the indoor unit 1 sends to the third EEPROM 33 from the wireless remote controller 3 in addition to a command signal for instructing an operation state of the air conditioner such as an operation mode, a set temperature, a set air volume, and a wind direction. A driving information signal indicating the stored driving information is received. The infrared transmission / reception unit 13 of the indoor unit 1 transmits an operation information signal indicating the operation information of the air conditioner to be stored in the third EEPROM 33 to the wireless remote controller 3.

  4A and 4B are flowcharts showing processing executed in the control unit 7 of the air conditioner of the present embodiment. The ventilation operation by the air conditioner of the present embodiment will be described with reference to the flowcharts of FIGS. 4A and 4B.

  First, the power to the air conditioner is turned on, the air conditioner is activated (step S1), the control unit 7 is activated, and whether or not a command signal indicating that the ventilation operation is turned on is received from the wireless remote controller 3. Is determined (step S2). When it is determined that the ventilation operation ON command signal has been received from the wireless remote controller 3, information indicating the ventilation operation ON is stored in the first EEPROM 11 of the indoor unit 1 (step S3). Subsequently, information indicating the ventilation operation on is stored in the second EEPROM 23 of the outdoor unit 2 (step S4). Further, information indicating ventilation operation ON is transmitted to the wireless remote controller 3, and information indicating ventilation operation ON is stored in the third EEPROM 33 of the wireless remote controller (step S5).

  Subsequently, it is determined whether the command signal from the wireless remote controller 3 has contents indicating ventilation operation on or contents indicating ventilation operation off (step S6).

  When it is determined in step S2 that the ventilation operation ON command signal has not been received from the wireless remote controller 3, the information stored in the first EEPROM 11 of the indoor unit 1 is read, and whether the ventilation operation was ON during the previous operation. It is determined whether or not (step S8). If the stored information of the first EEPROM 11 is information on ventilation operation ON, and if it is determined that the ventilation operation was ON during the previous operation, the process proceeds to step S6.

  On the other hand, if the stored information in the first EEPROM 11 is information on ventilation operation OFF in step S8, the information stored in the second EEPROM 23 is read to determine whether the ventilation operation was on during the previous operation ( Step S11). The information stored in the second EEPROM 23 is information on ventilation operation ON, and if it is determined that the ventilation operation was ON during the previous operation, information indicating ventilation operation ON is stored in the first EEPROM 11 (step S12). Subsequently, operation information indicating ventilation operation ON is transmitted to the wireless remote controller 3, and information indicating ventilation operation ON is stored in the third EEPROM 33 of the wireless remote controller (step S13). Thereafter, the process proceeds to step S6.

  On the other hand, if the stored information in the second EEPROM 23 is the ventilation operation off information in the step 11, the wireless remote controller 3 is instructed to read the information stored in the third EEPROM 33 and transmit it to the indoor unit. Then, based on the information received by the indoor unit, it is determined whether the ventilation operation was on during the previous operation (step S14). If the stored information in the third EEPROM 33 is information on ventilation operation ON, and it is determined that the ventilation operation was ON during the previous operation, the first EEPROM 11 stores information indicating ventilation operation ON (step S15). Subsequently, information indicating ventilation operation ON is stored in the second EEPROM 23 of the outdoor unit 2 (step S16). Thereafter, the process proceeds to step S6.

  If it is determined in step S14 that the stored information in the third EEPROM 33 indicates that the ventilation operation is OFF and the ventilation operation is OFF during the previous operation, the process proceeds to step S6.

  In step S6, if the command signal from the wireless remote controller 3 has contents indicating ventilation operation ON, the ventilation operation is executed (step S7).

  On the other hand, if the command signal from the wireless remote controller 3 has contents indicating ventilation operation OFF in step S6, it is determined whether or not the stored information in the first EEPROM 11 is ventilation operation ON (step S9). If the stored information in the first EEPROM 11 indicates that the ventilation operation is on, the process returns to step S7 to execute the ventilation operation.

  On the other hand, if the stored information in the first EEPROM 11 is OFF in the ventilation operation in step S9, the ventilation operation is stopped (step S10).

  After step S7 and step S10, the process returns to step S2, and it is determined whether or not a command signal for turning on the ventilation unit is received from the wireless remote controller 3.

  Thus, the air conditioner of this embodiment performs a ventilation operation according to the command signal from this remote control, when the operator inputs the ventilation operation to the remote control. On the other hand, even when the operator does not input that the ventilation operation is performed, if the ventilation operation was performed during the previous operation, the operation-on storage stored in the first EEPROM 11, the second EEPROM 23, or the third EEPROM 33 is stored. Based on the information, ventilation operation can be resumed. Therefore, in the air conditioner of the present embodiment, even if the stored information of the first EEPROM 11 and the second EEPROM 23 disappears due to, for example, replacement of electrical components or abnormal operation, the same as in the previous operation regardless of the operator's input. The ventilation operation can be resumed during this operation.

  In the second embodiment, after receiving the ventilation operation ON command signal from the wireless remote controller 3, the information indicating the ventilation operation ON is transmitted to the wireless remote controller 3, and the information indicating the ventilation operation ON is stored in the third EEPROM 33. However, when the operator inputs the ventilation operation ON to the wireless remote controller 3, information indicating the ventilation operation ON may be stored in the third EEPROM 33. In this case, step S5 may be deleted.

  Further, in the first and second embodiments, when the ventilation operation ON information is stored in the second EEPROM 23 or the third EEPROM 33, this information is temporarily stored in the first EEPROM 11, and then the storage information of the first EEPROM 11 is read. However, the ventilation operation may be executed immediately after reading the ventilation operation ON information stored in the second EEPROM 23 or the third EEPROM 33.

  Further, although the first EEPROM 11 as the first nonvolatile memory is provided in the indoor unit 1, the first nonvolatile memory is not necessarily provided in the indoor unit 1, and may be provided in the outdoor unit 2 or the wireless remote controller 3. For example, the first EEPROM 11 of the indoor unit 1 may be deleted, and the second EEPROM 23 of the outdoor unit 2 or the third EEPROM 33 of the wireless remote controller 3 may function as the first EEPROM 11.

  In the first and second embodiments, ventilation refers to at least one of supplying outdoor air to the room and discharging indoor air to the outside. Further, the supply of outdoor air and the discharge of indoor air may be alternately performed based on the input conditions of the operator and other conditions.

  In the first and second embodiments, the first, second, and third EEPROMs 11, 23, and 33 store the on / off information of the ventilation operation at the previous operation, but the on / off of the ventilation operation is stored. In addition to the above information, information such as discrimination of intake or exhaust in ventilation operation, air volume, wind direction, presence / absence of humidification operation, and set temperature may be stored.

  Moreover, although the said outdoor unit 2 connected the air supply / exhaust pipe 6 to the humidification unit 22 which has a humidification rotor, you may connect the air supply / exhaust pipe 6 to the air blower unit which does not have a humidification rotor.

  The ventilating unit has one end communicating with the indoor unit and the other end opened to the outside of the room, and the indoor unit is provided in the indoor unit and discharges indoor air to the outside through the air supply / exhaust line. Or you may form with the fan which guides outdoor air indoors.

  In addition to the EEPROM, the non-volatile memory may be a magnetic recording device such as a RAM or a hard disk, and may be any memory that can maintain the storage state even when the power is turned off.

  Moreover, although the said air conditioner comprised the indoor unit 1 and the outdoor unit 2 connected by the air supply / exhaust pipe 6, the refrigerant | coolant piping 5, and the connection wiring 8, even if it forms the indoor unit 1 and the outdoor unit 2 integrally, it is. Good.

It is the schematic which shows the air conditioner as 1st Embodiment of this invention. It is the flowchart which showed the process performed by the control part of the air conditioner of 1st Embodiment. It is the schematic which shows the air conditioner as 2nd Embodiment of this invention. It is the flowchart which showed the process performed by the control part of the air conditioner of 2nd Embodiment. It is the flowchart which showed the process performed by the control part of the air conditioner of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Outdoor unit 3 Wireless remote control 6 Supply / exhaust pipe 7 Control part 11 1st EEPROM
13 Infrared transmission / reception unit of indoor unit 23 2nd EEPROM
31 Infrared transceiver for wireless remote control 33 3rd EEPROM

Claims (9)

A ventilation section (6) for ventilating the room;
A first non-volatile memory (11) for storing operation information indicating an operation state of the ventilation unit (6) during the previous operation;
A control unit (7) for controlling the operation of the ventilation unit (6) based on the operation information stored in the first non-volatile memory (11) during operation this time ;
The first non-volatile memory (11), the receiving unit (13) that receives a command signal that commands the operating state of the ventilation unit (6), and the operation information stored in the first non-volatile memory (11). An indoor unit (1) having a transmission unit (13) for transmitting an operation information signal to be indicated;
A remote controller (3) having a transmitter (31) for transmitting the command signal and a receiver (31) for receiving the driving information signal;
With
When the remote controller (3) returns to the initial state, the remote controller (3) exchanges the operation information signal described in the first non-volatile memory (11) to transmit the first non-volatile memory of the indoor unit (1). Air obtained by obtaining the same information as the operation state stored in (11) and having no discrepancy in operation information between the remote controller (11) and the indoor unit (1) at least upon recovery from a power failure Harmony machine. In the air conditioner according to claim 1,
An air conditioner comprising an outdoor unit (2) having a second nonvolatile memory (23) for storing operation information of the ventilation unit (6) at the previous operation . In the air conditioner according to claim 2,
The remote controller (3)
A third non-volatile memory (33) for storing the operation information of the ventilation unit (6) during the previous operation;
The transmission unit (31) is an air conditioner which is characterized that you transmit the driving information signal indicating the third operating information stored in the nonvolatile memory (33) to the indoor unit (1). In the air conditioner according to claim 2 ,
Characterized Rukoto operation information signals indicating the operating information of the previous operation is stored in the first nonvolatile memory (11) of the said ventilation unit stored in the second nonvolatile memory (23) (6) Air conditioner. The air conditioner according to any one of claims 2 to 4,
The control unit (7)
When there is a ventilation on command signal from the remote controller (3), the ventilation on is stored in both the first nonvolatile memory (11) and the second nonvolatile memory (23), while the remote controller (3) It is determined that the ventilation on signal is not received from the controller (3), and that the first nonvolatile memory (11) does not store the ventilation on, and the second nonvolatile memory (23) is ventilated. When it is determined that the on is stored, the first non-volatile memory (11) stores the ventilation on,
When it is determined that the content of the command signal is ventilation-off, when the first nonvolatile memory (11) stores ventilation-on with reference to only the first nonvolatile memory (11), ventilation is performed. an air conditioner characterized by Rukoto is oN operation. In the air conditioner according to claim 3,
The control unit (7) is a case where the receiving unit (13) of the indoor unit does not receive a command signal instructing execution of ventilation of the ventilation unit (6) during the current operation, and the first nonvolatile Of the ventilation unit (6) during the previous operation indicated by the operation information stored in the volatile memory (11), the second nonvolatile memory (23), or the third nonvolatile memory (33) If it is, the operation of the ventilation section (6) is controlled based on the stored operation information so that the operation state is the same as the previous operation state. A ventilation section (6) for ventilating the room;
A first non-volatile memory (11) for storing operation information indicating an operation state of the ventilation unit (6) during the previous operation;
A control unit (7) for controlling the operation of the ventilation unit (6) based on the operation information stored in the first nonvolatile memory (11) during operation this time;
With
The first non-volatile memory (11), the receiving unit (13) that receives a command signal that commands the operating state of the ventilation unit (6), and the operation information stored in the first non-volatile memory (11). An indoor unit (1) having a transmission unit (13) for transmitting an operation information signal to be shown;
A remote controller (3) having a transmitter (31) for transmitting the command signal and a receiver (31) for receiving the driving information signal;
With
An air conditioner comprising an outdoor unit (2) having a second nonvolatile memory (23) for storing operation information of the ventilation unit (6) at the previous operation. A ventilation section (6) for ventilating the room;
A first non-volatile memory (11) for storing operation information indicating an operation state of the ventilation unit (6) during the previous operation;
A control unit (7) for controlling the operation of the ventilation unit (6) based on the operation information stored in the first nonvolatile memory (11) during operation this time;
With
The first non-volatile memory (11), the receiving unit (13) that receives a command signal for instructing the operation state of the ventilation unit (6), and the operation information indicating the operation information stored in the first non-volatile memory An indoor unit (1) having a transmitter (13) for transmitting a signal;
A remote controller (3) having a transmitter (31) for transmitting the command signal and a receiver (31) for receiving the driving information signal;
With
The air conditioner characterized in that the remote controller (3) includes a non-volatile memory (33) for storing operation information of the ventilation unit (6) at the previous operation. The air conditioner according to claim 8,
The remote controller (3) transmits an operation information signal indicating an operation state at the time of the previous operation of the ventilation unit (6) stored in the nonvolatile memory (33) of the remote controller (3) to the indoor unit (1 ) Is transmitted to the air conditioner.

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