WO2006059645A1

WO2006059645A1 - Air conditioner

Info

Publication number: WO2006059645A1
Application number: PCT/JP2005/021989
Authority: WO
Inventors: Akinori Nakai; Seiji Oka; Hidekazu Kudou; Takashi Tokui
Original assignee: Daikin Industries, Ltd.
Priority date: 2004-11-30
Filing date: 2005-11-30
Publication date: 2006-06-08
Also published as: EP1826499B1; KR20070084633A; AU2005310611A1; JP3861918B2; JP2006183991A; AU2005310611B2; KR100896118B1; ES2441355T3; EP1826499A4; EP1826499A1; US20070277541A1

Abstract

When an infrared transmission/reception section (13) of an indoor unit (1) receives from a wireless remote controller (3)a command signal for turning on ventilation operation, a first EEPROM (11) of the indoor unit (1) and a second EEPROM (23) of an outdoor unit (2) store information on the turning on of the ventilation operation. A blower in a humidifier unit (22) is activated, and a switching damper connected to an air supply/discharge tube (6) is switched to discharge indoor air to the outdoor or to suck outdoor air into the indoor. When the ventilation operation is stopped once by power supply failure, the ventilation operation is resumed, after the power is recovered from the failure, based on the information of the turning on of the ventilation store in the first EEPROM (11). This prevents inconvenience of ventilation operation being stopped despite that fact that no command by an operator to stop the ventilation operation is received.

Description

Air conditioner

Technical field

[0001] The present invention relates to an air conditioner, and more particularly to an air conditioner including a ventilation unit for ventilating a room.

Background art

Conventionally, an outdoor unit and an indoor unit are connected by a supply / exhaust pipe, and one end of the supply / exhaust pipe is connected to a suction side and a discharge side of a blower provided in the outdoor unit so as to be switchable by a damper. An air conditioner is disclosed (Japanese Patent Laid-Open No. 2003-176944).

[0003] In the conventional air conditioner, at the first switching position of the damper, the supply / exhaust pipe is connected to a suction side of the blower, and the blower is connected to the indoor air via the supply / exhaust pipe and the indoor unit. Inhale and discharge outside. On the other hand, at the second switching position of the damper, the air supply / exhaust pipe is connected to the blowout side of the blower, and the blower supplies outdoor air to the room through the supply / exhaust pipe and the indoor unit. In this way, indoor air is exhausted to the outside by the air conditioner or outdoor air is supplied to the room to perform indoor ventilation operation.

[0004] Further, the air conditioner receives an operation state command from an operator, transmits a signal corresponding to the command to the indoor unit, and the air conditioner according to the signal from the remote controller. And a control unit for controlling the operating state. When the operator commands ventilation operation to the remote controller, the control unit that receives the signal of the remote controller force also controls the damper and blower to perform ventilation operation.

[0005] However, when a power failure occurs during ventilation operation, the conventional air conditioner is in a stopped state even if the power failure is resolved and cannot return to the ventilation operation before the power failure. There is a case. 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 sent to the indoor unit, and the air conditioner may stop. . [0006] Due to recent revisions to the Building Standards Law, in order to prevent so-called sick houses, in principle, all buildings must be equipped with mechanical ventilation equipment.

However, since the conventional air conditioner receives a command to stop the ventilation operation from the operator as described above, the ventilation operation may be stopped.ヽ There are problems that can not function as mechanical ventilation equipment stipulated by the Building Standard Law.

Disclosure of the invention

Problems to be solved by the invention

[0008] Therefore, an object of the present invention is to provide an air conditioner that can prevent the inconvenience that the ventilation operation stops even though the operator has not received the ventilation operation stop command.

Means for solving the problem

[0009] In order to solve the above problems, an air conditioner of the present invention includes:

A ventilation section for ventilating the room;

A first non-volatile memory for storing operation information indicating the 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 during the current operation;

It is characterized by comprising.

[0010] According to the above configuration, when the ventilation unit is in an operating state during the previous operation, the control unit stores the operation information stored in the first nonvolatile memory during the current operation. Based on the operation information shown, the operation of the ventilation section 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 if the ventilation operation is stopped due to a power failure, for example, the ventilation operation is performed during the current operation after the power failure is restored. You can resume. Therefore, it is possible to prevent the inconvenience that the ventilation operation is stopped regardless of the force even though the ventilation operation stop command is not received as in the prior art.

[0011] An air conditioner according to an embodiment includes:

The first non-volatile memory and a command signal for commanding the operation state of the ventilation unit are received. An indoor unit having a reception unit and a transmission unit that transmits an operation information signal indicating the operation information stored in the first nonvolatile memory;

A remote controller having a transmitter for transmitting the command signal and a receiver for receiving the operation information signal;

Is provided.

[0012] According to the embodiment, based on the operator's input to the remote controller, the transmission unit force command signal of the remote controller is transmitted. The command signal is received by the receiving unit of the indoor unit, and the ventilation unit is controlled to the operation state corresponding to the command signal.

[0013] In addition, an operation information signal indicating operation information stored in the first nonvolatile memory of the indoor unit is transmitted by the transmission unit of the 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 due to, for example, battery replacement. It is possible to prevent a discrepancy in driving information between indoor units. Therefore, even though the ventilation controller stop command has not been input to the remote controller, the remote controller power that has returned to the initial state is also sent to the indoor unit, and the operation of the ventilation section is stopped. The inconvenience of doing can be prevented.

[0014] An air conditioner according to an embodiment includes:

An outdoor unit having a second non-volatile memory for storing the operation information of the ventilation unit during the previous operation is provided.

[0015] 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 first non-volatility due to, for example, failure or replacement of the indoor unit The operating information of the ventilation section can be backed up in preparation for the loss of the operating information in the memory.

[0016] In an air conditioner of an embodiment, the remote controller is

A third non-volatile memory for storing the operation information of the ventilation unit at the time of the previous operation, wherein the transmission unit indicates an operation information indicating the operation information stored in the third non-volatile memory; Send the number to the indoor unit.

[0017] 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. Thus, for example, the operation information of the ventilation section during the previous operation can be knocked up in preparation for the loss of the operation information of the first or second nonvolatile memory due to the replacement of electrical components or other causes.

[0018] An air conditioner according to an embodiment is the case where the control unit does not receive a command signal instructing execution of ventilation of the ventilation unit during the current operation, and the reception unit of the indoor unit receives the command signal. When the operation state of the ventilation unit at the previous operation indicated by the operation information stored in the first nonvolatile memory, the second nonvolatile memory, or the third nonvolatile memory is the execution of ventilation, this 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.

[0019] 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 The operation information stored in the nonvolatile memory 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 section 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 perform ventilation when the operator resumes the current operation. Note that the control unit may control the operation of the ventilation unit so that, during the current operation, the operation state is the same as at least a part of the operation state during the previous operation.

The invention's effect

[0020] As described above, the air conditioner of the present invention includes a ventilation unit that ventilates the room, a first nonvolatile memory that stores operation information indicating the operation state of the ventilation unit during the previous operation, and the current operation. A control unit that controls the operation of the ventilation unit based on the operation information stored in the first non-volatile memory. Even if the engine stops, the ventilation operation can be resumed during the current operation after the recovery from the power failure, so that the conventional inconvenience of the ventilation operation stopping after the power failure recovery can be prevented.

Brief Description of Drawings

[0021] The present invention will be more fully understood from the following detailed description and the accompanying drawing power. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. In the drawing,

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

FIG. 2 is a flowchart showing processing executed by a control unit of the air conditioner of the first embodiment.

FIG. 3 is a schematic view showing an air conditioner as a second embodiment of the present invention.

FIG. 4A is a flowchart showing processing executed by the control unit of the air conditioner of the second embodiment.

FIG. 4B is a flowchart showing processing executed by the control unit of the air conditioner of the second embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION

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

[0023] (First embodiment)

FIG. 1 is a schematic diagram showing an air conditioner as a first embodiment of the present invention.

[0024] This air conditioner includes an indoor unit 1 arranged on an indoor wall surface and the like, and an outdoor unit 2 arranged outside the room. The indoor unit 1 and the outdoor unit 2 include the refrigerant pipe 5 and the supply / exhaust air. Connected by pipe 6 and connection wiring 8.

[0025] 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 ^. Have In addition, an opening communicating with the air supply / exhaust pipe 6 is provided on the air passage generated by the cross flow fan, and outdoor air is supplied into the room through the opening, and the indoor air is discharged outside the room. It is formed to do.

[0026] The indoor unit 1 includes a wireless remote controller 3 as a remote controller, which will be described later. And an infrared transmission / reception unit 13 for transmitting and receiving infrared signals between the two. Specifically, the infrared transmitter / receiver 13 receives a command signal for instructing the operating state of the air conditioner such as an operation mode, a set temperature, a set air volume, and a wind direction from the wireless remote controller 3, while the wireless remote controller 3 3, the 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.

[0027] 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. In addition, 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, and transmits a command signal corresponding to an input to the input unit to the indoor unit 1. An operation information signal relating to 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.

[0028] In addition, the indoor unit 1 includes a first EEPROM (Electrically Erasable Programmable Read-Only Memory) 11 as a first non-volatile memory for storing operation information indicating the operation state of the air conditioner during the current operation. Be prepared.

The indoor unit 1 has 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. Yes. 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 EE PEOM 11) to the outdoor unit 2 and from the outdoor unit 2 The operation information signal related to the air conditioner during the previous operation is received.

[0030] The outdoor unit 2 includes an outdoor unit 21 and a humidifying 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. Also, electrical components are accommodated in the outdoor unit 21, and the electrical components include a power supply circuit of the air conditioner and a control unit 7 composed of a CPU. This CPU reads the control program stored in the ROM and executes control of the air conditioner. The refrigerant pipe 5 is connected to the outdoor unit 21 to control switching of the four-way switching valve and compressor capacity control. As a result, a refrigerant having a predetermined temperature and pressure is supplied.

[0031] On the other hand, in the humidification unit 22 of the outdoor unit 2, a humidification rotor formed of a moisture adsorbent such as zeolite, and a blower in which the humidification rotor is selectively connected to the suction and suction sides, A connection damper for switching and connecting the air supply / exhaust pipe 6 to the suction side and the blowout side of the blower is accommodated. At the first switching position of the connection damper, the 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 to the outside. Discharge. On the other hand, at the second switching position of the connection damper, the air supply / exhaust pipe 6 is connected to the blower side of the blower, and the blower is humidified via the humidification rotor, or the humidification opening. Outdoor air that does not pass through the heater is supplied to the room through the air supply / exhaust pipe 6 and the indoor unit 1.

[0032] In this way, 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 to the room to perform the indoor ventilation operation. Yes. That is, the opening formed in the ventilation path of the indoor unit, the air supply / exhaust pipe 6 communicating with the opening, the blower connected to the air supply / exhaust pipe 6, and the connection of the air supply / exhaust pipe 6 to the blower A connection damper that can be switched forms the ventilation section.

[0033] Furthermore, the outdoor unit 2 includes an information communication unit that performs information communication with the indoor unit 1, and transmits a command signal transmitted from the wireless remote controller 3 and received by the transmission / reception unit 13 of the indoor unit 1. The information communication department power of this indoor unit 1 is also received. Further, the information communication unit includes a second EEPROM 23 for storing the operation information at the time of the current operation received from the indoor unit 1.

[0034] Based on a command signal from the indoor unit 1, the control unit 7 provided in the electrical components in the outdoor unit 21 performs capacity control and start / stop of the compressor, and switching of the four-way switching valve. The capacity and start / stop of the blower and the switching of the connection damper are controlled. The control unit 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

[0035] The ventilation operation by the air conditioner having the above configuration will be described with reference to the flowchart of FIG. To do. This flowchart shows the processing executed by the control unit 7.

[0036] First, the air conditioner is turned on and the air conditioner is activated (step Sl). When the power is turned on, the control unit 7 is activated, and it is determined whether or not it has received a command signal indicating that the ventilation operation is turned on 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 that the ventilation operation is on is stored in the second EEPROM 23 of the outdoor unit 2 (step S4).

[0037] 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).

[0038] In the above step S2, if a command to turn on ventilation operation is received from the wireless remote controller 3, and it is determined that it is not, the information stored in the first EEPROM 11 of the indoor unit 1 is read and the previous time Judgment is made on whether or not the ventilation operation is on during operation (step S7). If the stored information in the first EEPROM 11 is information on ventilation operation ON, and if it is determined that the ventilation operation is ON during the previous operation, the process proceeds to step S5.

[0039] 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 out, and the power for which the ventilation operation was on during the previous operation is read. It is determined whether or not (step S10). The information stored in the second EEPROM 23 is the ventilation operation ON information, and if it is determined that the ventilation operation was ON during the previous operation, the information indicating the ventilation operation ON is stored in the first EEPROM 11 (step Sl 1). Subsequently, operation information indicating that the ventilation operation is ON is transmitted to the wireless remote controller 3 (step S12). Thereafter, the process proceeds to step S5.

[0040] On the other hand, if the stored information in the second EEPROM 23 is the ventilation operation off information in step 10, the process proceeds to step S5.

[0041] In step S5, if the command signal from the wireless remote controller 3 indicates the 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 blowout side of the blower and to start the blower.

[0042] In step S5, the command signal force from the wireless remote control 3 indicates that the ventilation operation is turned off. If it is the content, it is determined whether or not the stored information in the first EEPROM 11 indicates that the ventilation operation is on (step S8). If 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.

[0043] On the other hand, if the stored information in the first EEPROM 11 is OFF in the step S8, the ventilation operation is stopped (step S9).

[0044] After step S6 and step S10, the process returns to step S2, and it is determined whether or not the ventilation unit ON command signal is received from the wireless remote controller 3.

[0045] As described above, when the air conditioner of the present embodiment is set to the input power S remote controller for performing the ventilation operation by the operator, the air conditioner performs the ventilation operation in accordance with the command signal of the remote control force. On the other hand, even if the operator does not input the ventilation operation, if the ventilation operation was performed during the previous operation, the operation-on stored information stored in the first EEPROM 11 or the second EEPROM 23 is used. Ventilation operation can be resumed. Therefore, for example, even if the ventilation operation is stopped due to a power failure, even if the operator does not input ON of the ventilation operation, the same ventilation operation as the previous operation before the power failure is resumed at the current operation after the power failure is restored. be able to. Therefore, 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. The operating conditions such as air volume and direction other than the operating state may be returned to the initial state during the current operation, or stored in the first EEPROM 11 during the previous operation as in the operating state, and the previous operation during the current operation. Reproduce the same operating condition.

[0046] Also, since the signal indicating the operation information stored in the first EEPROM 11 is transmitted to the wireless remote controller 33 with respect to the operation information of the ventilation section, the wireless remote controller 33 can be used, for example, for battery replacement or the like. Thus, even when the initial state is restored, it is possible to prevent a discrepancy in driving information between the indoor unit 1 and the wireless remote controller 3. Therefore, although the operator's power wireless remote control 3 is not input with the ventilation operation stop command, the initial command signal is transmitted to the indoor unit 1 and the operation of the ventilation section stops. Can be prevented.

[0047] Further, the operation information stored in the first EEPROM 11 of the indoor unit 1 is stored in the second EE of the outdoor unit 2. Since it is stored in PROM23 and backed up, for example, even if the operation information of the first EEPROM 11 is lost due to failure or replacement of the indoor unit 1, the ventilation operation is continued based on the operation information stored in the second EEPROM 23. can do.

[0048] As described above, the air conditioner of the present embodiment turns off the ventilation operation by the operator even when a power failure, a failure of the indoor unit 1, an initialization of the wireless remote control 3, or the like occurs. Until the command is received, the ventilation operation can be continued with the power on. As a result, this air conditioner can function as a ventilation fan.

[0049] (Second Embodiment)

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

[0050] 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 and a supply / exhaust pipe 6 as shown in FIG. And connection wiring 8 are connected.

[0051] 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. As a result, 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 or replacement of electrical components, etc., based on the operation information stored in the third EEPROM 33, This makes it possible to perform the ventilation operation similar to the previous operation.

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.

[0053] In the air conditioner of the present embodiment, the wireless remote controller 3 has the third EEPROM 33, and the operation information received from the indoor unit 1 is written into the third EEPROM 33, and is transmitted from the third EE PROM 33 to the indoor unit 1. The operation information to be read is read out. The wireless remote controller 3 is read from the third EEPROM OM33 in addition to the command signal according to the input of the operator to the input unit by the infrared transmission / reception unit 31 that exchanges infrared signals with the indoor unit 1. Driving information is sent to indoor unit 1. In addition, the infrared transmission / reception unit 31 receives operation information to be written in the third EEPROM 33 from the indoor unit 1. In addition, the wireless remote controller 3 includes an input unit that is input by an operator in the room, similarly to the wireless remote controller 3 of the first embodiment. [0054] Further, the infrared transmission / reception unit 13 of the indoor unit 1 receives from the wireless remote controller 3 in addition to an instruction 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. Then, an operation information signal indicating the operation information stored in the third EEPROM 33 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.

[0055] FIGS. 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 this embodiment will be described with reference to the flowcharts of FIGS. 4A and 4B.

[0056] First, the air conditioner is turned on to activate the air conditioner (step S1), and the control unit 7 is activated to receive a command signal for turning on the ventilation operation from the wireless remote controller 3. It is determined whether or not it is correct (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 that the ventilation operation is on is stored in the second EEPROM 23 of the outdoor unit 2 (step S4). Further, information indicating that the ventilation operation is ON is transmitted to the wireless remote controller 3, and information indicating that the ventilation operation is 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).

[0058] In step S2, when the ventilation operation ON command signal is received from the wireless remote controller 3 and it is determined that it is not, the information stored in the first EEPROM 11 of the indoor unit 1 is read, and the previous time Judgment is made as to whether or not the ventilation operation was on during operation (step S8). If it is determined that the stored information in the first EEPROM 11 is the ventilation operation ON information and the ventilation operation is ON during the previous operation, the process proceeds to step S6.

[0059] On the other hand, if the information stored in the first EEPROM 11 is the ventilation operation off information in step S8, the information stored in the second EEPROM 23 is read out, and the ventilation operation was turned on during the previous operation. Determine whether or not (Step Sl l). The information stored in the second EEPROM 23 is the ventilation operation ON information, and the ventilation operation is ON during the previous operation. If it is determined that it is, the information indicating the 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.

[0060] On the other hand, if the stored information in the second EEPROM 23 is the ventilation operation off information in step 11 !, the wireless remote controller 3 is instructed to read the information stored in the third EEPROM 33. Based on the information received by the indoor unit, it is determined whether or not the ventilation operation was on during the previous operation (step S14). If the stored information in the third EEPROM 33 is the ventilation operation ON information, and it is determined that the ventilation operation was ON during the previous operation, the information indicating the ventilation operation ON is stored in the first EEPROM 11 (step S15). Subsequently, information indicating that the ventilation operation is 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 is ventilation operation OFF and the ventilation operation is OFF during the previous operation, the process proceeds to step S6.

[0062] If the command signal from the wireless remote controller 3 indicates that the ventilation operation is ON in step S6, the ventilation operation is executed (step S7).

[0063] On the other hand, if the content of the command signal from the wireless remote controller 3 indicates that the ventilation operation is OFF in step S6, it is determined whether or not the stored information in the first EEPROM 11 indicates that the ventilation operation is 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.

[0064] On the other hand, if the stored information in the first EEPROM 11 is OFF in the step S9, the ventilation operation is stopped (step S10).

[0065] After Step S7 and Step S10, the process returns to Step S2, and it is determined whether or not the ventilation unit ON command signal has been received from the wireless remote controller 3.

[0066] As described above, when the air conditioner of the present embodiment is set to the input power S remote controller for performing the ventilation operation by the operator, the air conditioner performs the ventilation operation according to the command signal of the remote control force. On the other hand, even if the operator does not input to perform ventilation operation, If ventilation operation is sometimes performed, ventilation operation can be resumed based on the operation-on stored information stored in the 1st EEPROM1, 2nd EEPROM23, or 3rd EEPROM33. Therefore, in the air conditioner of the present embodiment, even if the information stored in the first EEPROM 11 and the second EEPROM 23 is lost due to, for example, replacement of electrical parts or abnormal operation, the time of the previous operation is not affected by the operator's input. A similar ventilation operation can be resumed during this operation.

[0067] In the second embodiment, after receiving the ventilation operation ON command signal from the wireless remote controller 3, information indicating the ventilation operation ON is transmitted to the wireless remote controller 3, and the ventilation operation ON is turned on to the third EE PROM 33. The information indicating that the ventilation operation is ON may be stored in the third EEPROM 33 when the operator inputs the ventilation operation ON to the wireless remote controller 3 (step S5). In this case, step S5 may be deleted.

[0068] 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 stored in the first EEPROM 11, and then the first EEPROM 11 is stored. The ventilation operation was executed by reading out the stored information. However, the ventilation operation ON information stored in the 2nd EEPROM23 or 3rd EEPROM33 may be read out and the ventilation operation may be executed immediately! /.

[0069] Although the first EEPROM 11 as the first nonvolatile memory is provided in the indoor unit 1, the first non-volatile memory is not necessarily provided in the indoor unit 1, and is provided in the outdoor unit 2 or the wireless remote controller 3. Also good. For example, the first EEPROM 11 of the indoor unit 1 may be deleted, and the second EE PROM 23 of the outdoor unit 2 or the third EEPROM 33 of the wireless remote controller 3 may function as the first EEPROM 11.

[0070] In the first and second embodiments, ventilation means at least one of supply of outdoor air to the room and discharge of indoor air to the outdoors. Further, the supply of outdoor air and the discharge of indoor air may be alternately performed based on the operator's input conditions and other conditions.

[0071] 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. In addition to on / off information, information such as distinction between intake and exhaust in ventilation operation, air volume, wind direction, presence / absence of humidification operation, and set temperature may be stored. [0072] Further, in the outdoor unit 2, the supply / exhaust pipe 6 may be connected to a blower unit that does not have a force humidification rotor.

[0073] Further, the ventilation unit has an air supply / exhaust pipe having one end communicating with the indoor unit and the other end opened to the outdoor, and the indoor air is provided to the indoor unit via the air supply / exhaust pipe. It may be formed by a fan that exhausts or guides outdoor air into the room.

[0074] In addition to the EEPROM, the non-volatile memory may be a magnetic recording device such as a RAM or a hard disk. The only requirement is that the non-volatile memory be a memory that can maintain the memory state even when the power is turned off. Good.

[0075] The air conditioner is configured by connecting the indoor unit 1 and the outdoor unit 2 with the air supply / exhaust pipe 6, the refrigerant pipe 5 and the communication wiring 8, but the indoor unit 1 and the outdoor unit 2 are integrated. It may be formed.

[0076] While the embodiments of the present invention have been described above, it is obvious that various modifications may be made. All such modifications as would be obvious to one of ordinary skill in the art should not be considered as a departure from the spirit and scope of the present invention, but are intended to be included within the scope of the following claims. is there.

Claims

The scope of the claims

[1] Ventilator (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;

During the current 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)

An air conditioner comprising:

[2] In the air conditioner according to claim 1,

The first non-volatile memory (11), the receiving unit (13) for receiving 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 operation information signal;

An air conditioner comprising:

[3] In the air conditioner according to claim 2,

An air conditioner comprising an outdoor unit (2) having a second non-volatile memory (23) for storing operation information of the ventilation unit (6) during a previous operation.

[4] In the air conditioner according to claim 2,

The remote controller (3)

A third non-volatile memory (33) is provided to store the operation information of the ventilation section (6) during the previous operation.

The air conditioner, wherein the transmission unit (31) transmits an operation information signal indicating the operation information stored in the third nonvolatile memory (33) to the indoor unit (1).

[5] The air conditioner according to claim 1,

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. The operating state of the ventilation unit (6) during the previous operation indicated by the operation information stored in the non-volatile memory (11), the second non-volatile memory (23) or the third non-volatile memory (33) is the ventilation If it is an execution of In this case, the air conditioner controls the operation of the ventilation section (6) so as to be in the same operation state as the previous operation state based on the stored operation information.