JPH10234141A - Connecting condition searching of a plurality of electrical apparatuses and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable easy and accurate searching regarding to which apparatus an apparatus to be searched is connected in a plurality of wired apparatuses. SOLUTION: Breakers 3-A, 3-B, outdoor apparatuses 5-A, 5-B indoor apparatuses 6a to 6e, remote controls 9-A, 9-B are connected to a power source 1, so as to be capable of power feeding by a power supply line. For the searching work of the breaker, the outdoor apparatus and the indoor apparatus which are connected to one remote control 9-A, a searching signal is transmitted from the remote control 9-A to the power supply line. The fans of the outdoor apparatus 5-A, and the indoor apparatuses 6a to 6c having received the signal flicker. By recognizing the drive of the fan, the outdoor apparatus 5-A can be searched, and the indoor apparatuses 6a to 6e which are connected to the one remote control 9-A. Current of the breaker 3-A fluctuates with flickerings. By detecting the current of the respective breakers 3-A, 3-B, it is possible it is possible to search the breaker 3-A which is connected to one remote control 9-A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a plurality of electric devices, such as an air conditioner, in which a breaker (current breaker), an outdoor unit, an indoor unit, and a remote controller are connected by a power line. The present invention relates to a method of searching for these connection states for a system that has been configured and an apparatus for using the method. That is, the present invention relates to a measure for recognizing a connection state of each device, such as recognizing which indoor unit among a plurality of indoor units, one remote controller to be searched is connected.

[0002]

2. Description of the Related Art Conventionally, for example, in an air conditioner disclosed in JP-A-6-2926, a breaker, an outdoor unit, an indoor unit, and a remote controller are connected by power supply wiring. That is, each device is connected to the power supply via the breaker so as to be able to supply power. That is, when an overcurrent occurs, each device is protected by shutting off the breaker.

In general, there are various types of breakers, not only for air conditioners, but also for lighting, and a plurality of these breakers are arranged at one location (for example, in a breaker box). For example, when performing maintenance of an indoor unit, it is necessary to perform maintenance with the breaker for the air conditioner shut off. However, it is difficult to easily recognize which of the plurality of breakers is for an air conditioner.

For this reason, conventionally, each breaker is sequentially shut off, and when an air conditioner for which maintenance is to be performed is stopped, it is recognized that the breaker cut off at that time is for an air conditioner. Is the current situation.

Similarly, in an indoor multi-system having a large number of indoor units, dividing the large number of indoor units into a plurality of groups, and having a remote controller for each group, for example, when performing maintenance on one indoor unit, Even when it is desired to recognize which of the plurality of remote controllers is connected to the indoor unit, it is difficult to recognize the remote controller. For example, when all the remote controllers are turned off, each remote controller is sequentially turned on. Such work was necessary.

[0006]

However, in the case of the above-described search operation, an operation of checking the operating state of the air conditioner after the breaker shutoff operation or the remote control operation is performed.
The operation must be repeated until the target breaker or remote controller can be found, and the operation is extremely complicated.

[0007] In addition, in the former breaker search operation, even a power supply line that does not need to be cut off is cut off. On the other hand, in the latter remote control search operation, an air conditioner that does not need to be operated is also operated.

In particular, regarding air conditioners, it is difficult to distinguish that the air conditioner is in a thermo-off state and that the breaker is turned off or the remote controller is turned off and the air conditioner is stopped. The operation may not be performed correctly. That is, if the air conditioner is turned off at the same time when the lighting breaker is turned off, the lighting breaker is erroneously recognized as an air conditioner breaker. Also, when the remote control of a group that does not require maintenance is turned on and the air conditioner that performs maintenance at the same time turns on, the remote control of the group that does not require maintenance is considered to be a remote control for the air conditioner that performs maintenance. Misunderstood.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to easily and accurately determine to which device a target device is connected with respect to a plurality of devices connected by wiring. It is intended to be searchable.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention transmits a search signal to a wiring connecting devices and transmits the search signal to a device which receives the signal via the wiring so that the device operates normally. Enabled searching for connected devices by performing different searching operations.

More specifically, the invention according to claim 1 provides a search target electric device (9), (3,20) which is one of a plurality of electric devices (3,5,6,9), (3,20). This is a method of searching for electrical devices (3, 5, 6) and (3) connected to wiring (4, 7, 8, 10) and (4) with respect to (20). During the connection state search operation, the search target electrical device (9),
The search signal is transmitted from the wiring (20) to the wirings (4, 7, 8, 10) and (4), and the electric equipment that receives the search signal through the wirings (4, 7, 8, 10) and (4)
Only (3,5,6) and (3) perform search operation different from normal operation.

According to a second aspect of the present invention, there is provided an apparatus for using the method of the first aspect. That is, the wiring (4, 7, 8, 9) is connected to one of the plurality of electrical devices (3, 5, 6, 9), (3, 20), which is one of the search target electrical devices (9), (20). A device for searching for the electric devices (3, 5, 6) and (3) connected by (10) and (4), provided in the electric devices (9) and (20) to be searched, and Transmission means (13), (20a) for transmitting a search signal to the wiring (4, 7, 8, 10), (4) at the time of the search operation, and the search target electrical equipment (9),
It is provided to electrical equipment (3, 5, 6) and (3) other than (20), and is transmitted from the transmission means (13) and (20a) and the wiring (4, 7, 8, 10) and (4) Only when receiving the search signal passed through, the electrical equipment (3,5,6),
(3) is provided with search operation means (14, 15) and (22) for performing a search operation different from the normal operation.

According to this specific matter, at the time of the search operation of the connection state, the wires (4, 7, 8, 1) are connected from the search target electrical devices (9), (20).
0) and (4) transmit a search signal. Then, this wiring (4,
Electric devices (3, 5, 6), which received the search signal via (7, 8, 10), (4),
Only (3) performs a search operation different from the normal operation. The search operation includes, for example, a flicker operation of a fan and a display operation of a remote controller when applied to an air conditioner. Thereby, the electric devices (3, 5, and 10) connected to the search target electric devices (9) and (20) by the wirings (4, 7, 8, 10), and (4)
6) and (3) can be easily searched.

According to a third aspect of the present invention, the search device is specified as a device for searching which breaker is connected to the search target electric device (9). That is, the wiring is a power supply wiring (4, 7, 8, 10) for connecting the electric devices (3, 5, 6, 9) so that power can be supplied. The electrical equipment (3,5,6) other than the electrical equipment (9)
A, 3-B) and power consuming devices (5,6) whose power consumption is variable according to the operation state. Search operation means (14, 15)
Only when the search signal is received, the power consuming device (5,
6) Make the power consumption state different from the normal power consumption state. At this time, by detecting the fluctuation state of the current flowing through each breaker (3-A, 3-B), respectively,
In this configuration, the breaker (3) connected to the power supply wiring (4, 7, 8, 10) can be searched.

According to this specific matter, the search operation means (14, 15) which has received the search signal sets the power consumption state of the power consuming device (5, 6) to a state different from the normal power consumption state, and accordingly, the booker. The fluctuation state of the current flowing through (3-A, 3-B) changes to a state different from the normal state. By detecting this fluctuation state, the power supply wiring (4, 7,
The breaker (3) connected by (8, 10) can be searched.

According to a fourth aspect of the present invention, the power consumption state of the power consuming device (5, 6) according to the third aspect is specified. That is, the search operation means (14, 15) alternately changes the operation state of the power consuming device (5, 6) between two operation states having different power consumption only when the search signal is received, Breaker connected to the power consuming equipment (5, 6)
(3) The current flowing through is flickered.

According to this specific matter, by finding the breaker (3) in which the flowing current flickers, it is connected to the electric equipment (9) to be searched by the power supply wiring (4, 7, 8, 10). The breaker (3) can be easily searched.

The invention according to claim 5 specifies a case where the connection state searching device is applied to an air conditioner. In other words, the outdoor unit (5) and the indoor unit
(6) is provided. Search operation means (14, 15), outdoor unit (5)
And at least one of the indoor unit (6), and when the search signal is received, the fan is operated to flicker.

According to this specific matter, for example, when searching for the outdoor unit (5) or the indoor unit (6) connected to the remote controller, it is possible to easily search by searching for a fan that is performing a flicker operation.

According to a sixth aspect of the present invention, a special display indicates that the device is a connected device. The display unit is provided on the electric device (9) other than the search target electric device (6). Only when the search operation means (13) receives the search signal, the display section displays the reception of the search signal.

According to this specific matter, it is possible to search for a connected device by a simple operation such as checking the display unit.

The invention according to claim 7 is a case where the invention according to claim 6 is applied to a remote controller of an air conditioner. The electric equipment is provided with a remote control (9) for switching operation of the air conditioner. The search operation means (16) is configured to display the reception of the search signal on the display unit of the remote controller only when the search signal is received.

According to this specific matter, for example, when searching for a remote controller connected to the indoor unit, the search can be performed by checking the display unit of the remote controller.

[0024]

Next, embodiments of the present invention will be described with reference to the drawings. This embodiment describes a case where the present invention is applied to an air conditioner. FIG. 1 is an air conditioner power supply line system diagram including two systems according to the present embodiment.

As shown in FIG. 1, the first and second systems
(A, B) connect the first and second breakers (3-A, 3-B) to the three-phase AC power supply (1) via the three-phase AC power supply line (2-A, 2-B).
B) are connected respectively. Each breaker (3-A, 3-B)
The first and second outdoor units (5-A, 5-B) are connected to be capable of supplying power via first and second three-phase AC power supply lines (4-A, 4-B), respectively. ing.

A first system is connected to the outdoor units (5-A, 5-B).
In (A), the first to third indoor units (6a, 6b, 6c) are
In the system (B), the fourth and fifth indoor units (6d, 6e) are first and second internal / external power supply lines each of which is a two-phase AC line.
(7-A, 7-B).

Of these indoor units (6a to 6e), the first system
In (A), the first and second indoor units (6a, 6b) are connected by the first indoor power supply line (8-A), and the second and third indoor units (6b, 6c) are connected to the first and second indoor units (6b, 6c). Two indoor power lines (8-A ') are connected. Only the first indoor unit (6a) is connected to the first outdoor unit (5-A) by the first indoor / outdoor power supply line (7-A).
That is, power is directly supplied to the first indoor unit (6a) from the first outdoor unit (5-A) via the first indoor / outdoor power supply line (7-A),
The first indoor unit (6a) is connected to the third indoor unit (6c) by the first indoor power supply line (8-A) via the first indoor unit (6a) to the second indoor unit (6b). The first indoor power line (8-A) and the second indoor unit (6
b), power is supplied via the second indoor power supply line (8-A ').

Further, the first indoor unit (6a) has first to third
A first remote controller (9-A) for group-controlling the indoor units (6a to 6c) is connected by a first remote controller power line (10-A).

On the other hand, in the second system (B), the fourth and fifth indoor units (6d, 6e) are connected to the third indoor power supply line (8-B).
Connected by Of these indoor units (6d, 6e), only the fourth indoor unit (6d) is connected to the second outdoor unit (5-B) via the second indoor / outdoor power supply line (7-B). That is, in the second system (B), the fourth indoor unit (6d) is connected to the second outdoor unit (5-B)
Power is directly supplied from the second indoor power supply line (7-B) to the fifth indoor unit (6e) and the third indoor power supply line (8-B) through the fourth indoor unit (6d). It is being supplied.

A second remote controller (9-B) is connected to the fourth indoor unit (6d) via a second remote controller power supply line (10-B).

The above is the power supply line system of the air conditioner.

Hereinafter, a feature of the present invention will be described. Each of the outdoor units (5-A, 5-B), indoor units (6a to 6e),
(9-A, 9-B) includes a search signal transmitting means and a search operation means for receiving the search signal.

The transmitting means transmits a search signal to each power supply line. The transmitting means of the outdoor units (5-A, 5-B) includes a transmitting circuit (not shown) provided in an outdoor unit (not shown). 1
1-A, 11-B). The transmitting circuits (11-A, 11-B) transmit a search signal by operating a transmitting switch provided on a control P plate of the outdoor unit, for example. The transmitting means of the indoor units (6a to 6e) includes transmitting circuits (12a to 12e) provided in an indoor unit (not shown). The transmission circuits (12a to 12e) transmit a search signal by operating a transmission switch provided on a control P plate of the indoor unit, for example. Also, the remote controller according to the present embodiment
(9-A, 9-B) can be switched to search mode,
The transmitting means of the remote control (9-A, 9-B) is a transmitting circuit (13-A, 13-B) for transmitting a search signal by operating a transmitting switch (not shown) when the remote control is switched to the search mode. . That is, each of the above devices operates the transmission switches (11-A, 11-B), (12a to 12e), (13
-A, 13-B) can transmit a search signal to the power line.

The search operation means is capable of receiving a search signal issued by another device, and upon receiving the search signal, causes each device to perform a specific search operation.
Specifically, the search operation means (14-A, 14-A) of the outdoor unit (5-A, 5-B)
-B), when the search signal is received, the outdoor fan flickers. That is, for example, the operation of driving the outdoor fan for 5 seconds and then stopping for 2 seconds is alternately repeated for a predetermined time (for example, 1 minute).
The search operation means (15a to 15e) of the indoor units (6a to 6e) flickers the indoor fan when receiving the search signal. Also in this case, for example, after driving the indoor fan for 5 seconds, 2
The operation of stopping for a second is alternately repeated for a predetermined time. Search operation means (16-A, 16-A) of remote control (9-A, 9-B)
-B), upon receiving the search signal, displays the search signal on the display panel (not shown) of the remote controller (9-A, 9-B). Specifically, for example, the character “search remote control” blinks on the display panel. In normal operation, outdoor units (5-A, 5-B) and indoor units
The flicker operation of (6a to 6e) and the reception and display of the search signal of the remote controller (9-A, 9-B) are not performed. That is, these operations are operations in which the reception of the search signal can be reliably recognized.

As described above, the search signal is transmitted and received between the devices via the power supply line. For this reason, the search signal is not transmitted to a device that is not directly connected by the power supply line.

More specifically, the search signal from the first outdoor unit (5-A) is transmitted to the first to third indoor units (6a to 6c) and the first remote controller (9-A). But not sent to other devices. Similarly, the search signal from the second outdoor unit (5-B) is transmitted to the fourth and fifth indoor units (6d, 6e) and the second remote controller.
(9-B), but not to other devices.

The search signal from the first indoor unit (6a), the second indoor unit (6b) or the third indoor unit (6c) is transmitted to the first outdoor unit (5-A) and the first remote controller (9-A). , But not to other devices. Similarly, the search signal from the fourth indoor unit (6d) or the fifth indoor unit (6e) is transmitted to the second outdoor unit (5-B) and the second indoor unit (5-B).
Transmitted to the remote control (9-B), but not transmitted to other devices.

The search signal from the first remote controller (9-A) is transmitted to the first to third indoor units (6a to 6c) and the first outdoor unit (5-A), while other devices are transmitted. Is not sent to Similarly, the search signal from the second remote controller (9-B) is transmitted to the fourth and fifth indoor units (6d, 6e) and the second outdoor unit (5-B), while other devices are transmitted. Is not sent to

As described above, the search signal is transmitted and received between devices connected to directly supply power.

In this embodiment, a current detector (not shown) for detecting a current value flowing through the breakers (3-A, 3-B) is provided.

Next, the search operation in this embodiment will be described. This search operation is an operation for recognizing which device is connected to one device by a power supply line. This operation has three forms. In other words, the search target electric device is a remote controller, and a remote control is used to search for which indoor unit, outdoor unit, or breaker is connected. The search target electric device is an indoor unit, and one indoor unit is searched. And which form of the outdoor unit, the remote controller, and the breaker are connected, and the electric device to be searched as the outdoor unit, which indoor unit, the remote controller, and the breaker are connected to one outdoor unit. This is a mode for searching for. Hereinafter, each of them will be described.

First, the operation of searching for which indoor unit, outdoor unit, or breaker is connected to one remote controller will be described. For example, the first remote control (9-A)
In order to search for a connected device, the first remote controller (9-A) is operated to switch to the search mode.
In this state, the transmission switch is turned on to transmit the search signal from the transmission circuit (13-A). This search signal is sent to the first indoor unit (6a) via the first remote control power line (10-A), to the second indoor unit (6b) via the first indoor power line (8-A), and to the second indoor unit (6b). The signal is transmitted to the third indoor unit (6c) via the power supply line (8-A ') and to the first outdoor unit (5-A) via the first indoor / outdoor power supply line (7-A).
The indoor unit (6a, 6b, 6c) and the outdoor unit (5
In -A), each fan performs a flicker operation by the operation of the search operation means (15a to 15c) and (14-A). By recognizing this, the worker can check the indoor units (6a to 6c) and the outdoor units (5-A) connected to the first remote controller (9-A). Further, at this time, the current flowing through the first breaker (3-A) is
Since the current is changed according to the flicker operation, the current is detected by the current detector for each breaker (3-A, 3-B) to determine which breaker is connected to the remote controller. It can be recognized (FIG. 2 shows a change state of the breaker current with respect to the flicker operation of the fan). That is, in the above case, the fluctuation of the current is not recognized by the second breaker (3-B), and the fluctuation of the current is recognized only by the first breaker (3-A). In such a breaker search operation, the indoor units (6a to 6c) and the outdoor units (5-A) that perform the flicker operation function as the power consuming devices according to the present invention.

Next, an operation for searching for which remote controller, outdoor unit, or breaker is connected to one indoor unit will be described. For example, when searching for a device connected to the first indoor unit (6a),
Operate the transmission switch of the indoor unit (6a) to transmit the search signal from the transmission circuit (12a). The search signal is sent to the first remote controller (9-A) via the first remote controller power line (10-A).
The signals are transmitted to the first outdoor unit (5-A) via the indoor / outdoor power supply line (7-A). The first remote controller (9-A) that has received this search signal
In the search operation, the search operation means (16-A) performs search display on the display panel. In the first outdoor unit (5-A), the search operation means
(14-A) causes the outdoor fan to flicker. The worker can recognize the remote controller (9-A) and the outdoor unit (5-A) connected to the first indoor unit (6a) by recognizing these.
Further, at this time, the current is detected by the current detector for each breaker (3-A, 3-B), so that which breaker is connected to the first indoor unit (6a) is detected. Can be recognized.

Next, an operation for searching for which remote controller, indoor unit, or breaker is connected to one outdoor unit will be described. For example, when searching for a device connected to the first outdoor unit (5-A), the transmission switch (11-A) is operated by operating the transmission switch of the first outdoor unit (5-A).
The search signal is transmitted from A). This search signal is sent to the first indoor unit (6a) via the first indoor / outdoor power supply line (7-A), to the second indoor unit (6b) via the first indoor power supply line (8-A), and to the second indoor unit (6b). The signal is transmitted to the third indoor unit (6c) via the power supply line (8-A ') and to the first remote control (9-A) via the first remote control power supply line (10-A). In the first remote controller (9-A) which has received the search signal, the search operation means (16-A) performs search display on the display panel. Further, in the first to third indoor units (6a to 6c), the indoor fan flickers by the search operation means (15a to 15c). The worker recognizes these, so that the first outdoor unit
Remote controller (9-A) connected to (5-A) and indoor unit (6a
~ 6c) can be confirmed. In this case, the breakers (3
-A, 3-B) by detecting the current with the current detector, it is possible to recognize which breaker is connected to the first outdoor unit (5-A).

As described above, according to the present embodiment, the search signal is transmitted and received between the devices using the power supply line, and the devices directly connected by the power supply line can be recognized. it can. For this reason, when performing maintenance on indoor units, operations such as shutting off each breaker in order and searching for a breaker connected to the air conditioner to be maintained, or dividing many indoor units into groups with multiple remote controllers When performing maintenance on one indoor unit in the case of controlling, there is no need to operate each remote controller in order to search for a remote controller connected to the indoor unit. Further, since it is not necessary to perform the search operation while stopping the air conditioner by operating the breaker or the remote controller, it is not possible to discriminate between the stopped state and the thermo-off state, thereby causing no erroneous recognition. Therefore,
According to the present embodiment, it is possible to search for a connected device with a simple operation, in a short time, and accurately.

In this example, one device can be searched for the connection status of all other devices. However, for example, when the configuration is such that only a breaker search operation can be performed, the indoor unit and the It is not necessary to cause both outdoor units to perform flicker operation, and only one of the outdoor units needs to perform flicker operation to fluctuate the breaker current.

Although the fan is operated to flicker to search for a breaker, the present invention is not limited to this. If the indoor unit is provided with an electric heater or an air purifier, these fans are turned on. , Off operation, alternately switching between energizing and de-energizing a crankcase heater provided in a compressor in an outdoor unit, and energizing and de-energizing half-wave rectified current to the compressor. The current of the breaker is also changed by alternately switching the circuit breaker and the circuit breaker, so that the search operation of the breaker can be performed by using the change. Further, the terminal block of the outdoor unit may be provided with individual means for consuming power, and the search operation may be performed by changing the power consumption state.

(Modification) Next, a modification of the present invention will be described. In the above-described embodiment, the case where the present invention is applied to the air-conditioning apparatus has been described. However, in this example, the case where the present invention is applied to an electric device such as a lighting fixture will be described.

FIG. 2 shows an electric device such as a lighting device according to the present embodiment.
It is a power supply line system diagram of (20).

As shown in FIG. 2, the electric equipment (20) is connected to an AC power supply (not shown) so as to be able to supply power through an AC power supply line (4) via one breaker (3-A).

The electric device (20) has a transmitting circuit (20a) which is a transmitting means of a search signal. This transmission circuit (20a)
A search signal is transmitted to the power supply line (4), and a transmission operation is performed by operating a transmission switch (not shown) provided on a control P plate in a casing of the electric device (20).

On the other hand, the breaker (3) is
In addition to those connected to (-A in the figure), breakers (3-B, 3-C) connected to other electric equipment (not shown) are arranged in one place. . Each of these breakers (3-A to 3-
C) is provided with display lamps (21a to 21c) that are turned on when power is supplied from the power supply, and changes the lighting state of the display lamps (21a to 21c) when the search signal is received. Search operation circuit as search operation means (22a to 22c)
Is provided. Specifically, when the search signal is received, the display lamps (21a to 21c) blink.

Next, the breaker search operation in this example will be described. This search operation is an operation for searching for which breaker is connected to the electric device (20) by the power supply line.

This operation is performed by operating the transmission switch provided on the electric device (20) to transmit a search signal from the transmission circuit (20a) to the power supply line (4). This search signal is transmitted to the power supply line (4) to the breaker (3-A). Upon receiving the search signal, the search operation circuit (22a) of one breaker (3-A) blinks the display lamp (21a).
The indicator lamp (21a) does not blink for other breakers (3-B, 3-C).

The worker can recognize the breaker connected to the electric equipment (20) by recognizing this. Therefore, when performing maintenance on the electric device (20), the breaker (3) whose indicator lamp (21a) is blinking is used.
By cutting off -A), work can be performed with the power supply to the electric device (20) stopped.

In the breaker search operation of the above-described embodiment, the operation of changing the current flowing through the breaker (flicker operation of the fan of the outdoor unit or the indoor unit) is required. However, according to the configuration of this example, the breaker itself is used. In this case, the search display is performed (the display lamp blinks), so that the breaker can be searched without changing the current. That is, since the current detection work as in the above-described embodiment is not required, the workability can be improved.

[0057]

As described above, according to the present invention, the following effects can be obtained. According to the first and second aspects of the present invention, the plurality of electric devices (3, 5, 6, 9), (3, 2
Wiring (4, 7, 8, 10) to connect (0)
A search signal is transmitted from (9) and (20), and only the electric devices (3, 5, 6) and (3) that have received this signal perform a search operation different from the normal operation, thereby connecting the connected device ( Search for 3,5,6), (3). Therefore, it is possible to search for the connected device with a simple operation, in a short time, and accurately,
It is possible to improve the efficiency of the work of searching for the connection state of the devices and improve the reliability.

According to the third aspect of the present invention, the power consumption state of the power consuming device (5, 6) that has received the search signal is made different from the normal power consumption state and flows through the breakers (3-A, 3-B). By changing the current, the breaker (3) connected to the search target electrical device (9) by the power supply wiring (4, 7, 8, 10) can be searched. This eliminates the need for the conventional operation of shutting off each breaker while checking the operation state of the electric device, and improves the efficiency and reliability of the search operation of the breaker connected to the search target device. Performance can be improved.

According to the fourth aspect of the present invention, a power consuming device
The current flowing through the breaker (3) is flickered by alternately changing the operating state of (5, 6) between two operating states having different power consumption. This makes it easier to search for the breaker (3).

According to the fifth aspect of the present invention, the connection state searching device is applied to an air conditioner, and the fans of the outdoor unit (5) and the indoor unit (6) that have received the search signal are operated to flicker.
This allows, for example, an outdoor unit (5) connected to a remote control
When searching for the indoor unit (6), it is possible to easily search by searching for a fan that is performing a flicker operation, and the practicality of the search operation can be improved.

According to the sixth aspect of the present invention, the display unit is provided in the electric device (9) other than the search target electric device (6), and when the search signal is received, the reception of the search signal is displayed on the display unit. I did it. This makes it possible to search for a connected device by a simple operation such as checking the display unit, and it is possible to further improve the practicality of the search operation.

The invention according to claim 7 is a case where the invention according to claim 6 is applied to a remote controller of an air conditioner, wherein the reception of the search signal is displayed on the display unit of the remote controller that has received the search signal. . Therefore, it is possible to easily check the connected remote controller by checking the display unit of the remote controller.

[Brief description of the drawings]

FIG. 1 is a system diagram of an air conditioner power supply line according to an embodiment.

FIG. 2 is a diagram showing a state of fluctuation of a breaker current according to an on / off operation of a fan.

FIG. 3 is a power supply line system diagram according to a modification.

[Explanation of symbols]

 3 Breaker 4,7,8,10 Power line 5 Outdoor unit (power consumption device) 6 Indoor unit (power consumption device) 9 Remote control 11,12,13,20a Transmission circuit (transmission means) 14,15,16,22a Operating means 20 Electric equipment

Claims (7)

[Claims] A wiring is connected to a search target electrical device (9), (20) which is one of a plurality of electrical devices (3, 5, 6, 9), (3, 20).
(4,7,8,10), electrical equipment connected by (4) (3,5,6),
(3) is a method of searching for the electronic devices to be searched (9), (20)
From the wiring (4, 7, 8, 10), (4) to transmit a search signal, and the electric equipment (3, 3) that received the search signal via the wiring (4, 7, 8, 10), (4)
A method of searching for a connection state of a plurality of electrical devices, wherein only the search operation is performed by a search operation different from the normal operation. 2. Wiring to one of the plurality of electrical devices (3, 5, 6, 9), (3, 20), the search target electrical device (9), (20)
(4,7,8,10), electrical equipment connected by (4) (3,5,6),
A device for searching (3), which is provided in the search target electrical devices (9) and (20), and performs a search signal on the wires (4, 7, 8, 10) and (4) during a connection state search operation. Transmission means (13), (20a) for transmitting the electric equipment (3, 5, 6) other than the search target electric equipment (9), (20),
Only when a search signal transmitted from the transmission means (13), (20a) and passed through the wiring (4, 7, 8, 10), (4) is received, the electric device (3) is provided. , 5,6), (3) is provided with search operation means (14,15), (22) for performing a search operation different from the normal operation. apparatus. 3. The connection state searching device for a plurality of electric devices according to claim 2, wherein the wiring is a power supply wiring (4,7,9) for connecting the respective electric devices (3,5,6,9) so as to be able to supply power. 8, 10), and the electrical equipment (3, 5, 6) other than the electrical equipment to be searched (9) has a plurality of breakers (3-A, 3-B) and power consumption depending on the operating state. The search operation means (14, 15) is provided with a variable power consuming device (5, 6). In this case, the power supply wiring (4, 7) is connected to the electrical equipment (9) to be searched by detecting the fluctuation of the current flowing through each breaker (3-A, 3-B). , 8,10)
(3) An apparatus for searching for a connection state of a plurality of electric devices, wherein (i) is searchable. 4. The connection state searching device according to claim 3, wherein the search operation means (14, 15) operates the power consuming device (5, 6) only when a search signal is received. Are alternately changed between two operating states having different power consumptions to flicker a current flowing through a breaker (3) connected to the power consuming devices (5, 6). Connection state search device. 5. The connection state searching device according to claim 2, wherein the electric device includes an outdoor unit (5) and an indoor unit (6) constituting an air conditioner, and the search operation means ( 14, 15) are provided in at least one of the outdoor unit (5) and the indoor unit (6), and perform a flicker operation of a fan when a search signal is received. apparatus. 6. The connection state searching device for a plurality of electric devices according to claim 2, wherein the electric device (9) other than the search target electric device (6) is provided with a display unit, and the search operation means (13) includes: A connection state search device for a plurality of electrical devices, wherein the display unit displays the search signal reception only when the search signal is received. 7. The connection state search device for a plurality of electric devices according to claim 6, wherein the electric device includes a remote controller (9) for switching operation of the air conditioner, and the search operation means (16) includes: , Only when a search signal is received,
A connection state search device for a plurality of electric devices, wherein a display of a search signal is displayed on a display unit of a remote controller.