JP2000115921A - Distribution board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distribution board wherein it can be known that a working current has exceeded a specified value without continuously watching the distribution board, and it can be prevented that a breaker operates and all power sources are suddenly cut off. SOLUTION: This distribution board is equipped with a breaker 20, current detection current transformers 30 which are fixed to the breaker 20, detect working currents, and output current detection signals, an operation processing means 35 which receives the current detection signals from the current detection current transformers 30, and outputs an alarm signal when a working current exceeds a specified value, and an alarm voice generating means 42 which informs excessive use of electricity with voice, according to the alarm signal from the operation processing means 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board which allows the user to easily know the power consumption.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing the appearance of a conventional distribution board. As shown in FIG. 5, a conventional distribution board includes a box-shaped distribution board body 110, in which a contract breaker 120, a main breaker 130, and a plurality of branch breakers 140 are housed. Each switch was exposed on the surface side of the. According to this switchboard, the contract breaker 120, master breaker 130, branch breaker
It was possible to operate devices such as 140. However, in the conventional distribution board as shown in FIG. 5, since the current state of the used current is unknown, when the used current exceeds a predetermined current value according to the contract with the power company, the contract breaker is used.
120, the main breaker 130, and in some cases, the branch breaker 140, etc., suddenly operated and the power was cut off. In such a case, the power of the operating personal computer or word processor will be dropped during use, and the hardware itself of the equipment itself, the software written on the floppy disk or the like, or the software being written is damaged, In some cases, the work performed over time was wasted. Also, depending on the device, if the power is cut off, it is necessary to re-set the time of a timer clock or digital clock built in the video, stereo, etc., which may be very troublesome. The problem was pointed out. The technology for solving the problem is described in Japanese Patent Information Organization (JAPI).
By using the prior art search (Patris) of O), patent applications and utility model registration applications since 1980 were searched using the following search formula.

Search formula: H02B09 / 00A As a result, 30 patent applications and 6 utility model registration applications were extracted. Among them, as a technique related to the present invention, there is a technique relating to a "distribution board" described in JP-A-9-322331. The conventional technique described in Japanese Patent Application Laid-Open No. 9-322331 makes it possible to know at a glance the power usage of a large number of branch circuits, and to open and close a breaker in a closed state, to monitor power and perform maintenance. The purpose of the present invention is to provide a convenient distribution board.

[0004]

However, the technique relating to the "distribution board" described in the above-mentioned conventional Japanese Patent Application Laid-Open No. 9-322331 makes it possible to visually check the power usage of the branch circuit. Even if you can open and close the breaker,
When the used current is likely to exceed a predetermined value, the power use status cannot be understood unless the distribution board is constantly watched. For this reason, there is a first problem that when the current used exceeds a predetermined value in a state where the user is away from the distribution board, the breaker is activated, and all the power is suddenly turned off.

In addition, the above-mentioned conventional Japanese Patent Application Laid-Open No. 9-3223
The technology related to the “distribution board” described in No. 31 is that even if the current used exceeds a predetermined value, if you are in a room where no There is a second problem that it is not possible to take appropriate measures because the use situation cannot be seen with the eyes. Furthermore, the above-described technique relating to the “distribution board” described in the above-mentioned conventional Japanese Patent Application Laid-Open No. 9-322331 discloses that, when the used current exceeds a predetermined value, each time it comes to a room with a distribution board, By visually observing the usage status, a person can determine which equipment to turn off, and then turn off the power by the corresponding branch breaker or directly turn off the power of the corresponding equipment. The third problem was that it was troublesome.

The invention according to claim 1 has been made in view of the above-mentioned first problem of the prior art, and an object of the invention is to always look at a distribution board. Even if it is possible to know that the operating current has exceeded a predetermined value, and to provide a distribution board that can prevent the breaker from operating and suddenly turning off all power. It is.

[0007] In addition, the invention according to claim 2 has been made in view of the above-mentioned second problem of the prior art, and an object thereof is to dispose a distribution board main body. It is an object of the present invention to provide a distribution board that can know that the used current has exceeded a predetermined value even in a room where it is not used. In addition to this, the invention according to claim 3 has been made in view of the third problem of the above-described conventional technology, and the object thereof is to solve the problem when the used current exceeds a predetermined value. In addition, the power supply cut-off means turns off the power supply of the equipment to be used, thereby providing a power distribution board that does not require much labor.

[0008] In addition, the invention according to claim 4 aims to provide a distribution board which allows the user to easily know that the used current has returned to a predetermined value without looking at the distribution board. It is. In addition to this, the invention according to claim 5 can return the power supply to the on state without operating the power supply of the device in the off state when the use current returns to the predetermined value. It is intended to provide a distribution board that does not cost.

In addition to the above, according to the present invention, it is possible to know the branch use current flowing through the branch breaker, and to determine which equipment is to be turned off when the use current exceeds a predetermined value. It is an object of the present invention to provide a distribution board that can make the judgment easily. Note that the same technology as the present invention could not be found by the above-described prior art search.

[0010]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. The invention according to claim 1 is
A breaker (20), a current detection current transformer (30) attached to the breaker (20) for detecting a used current and outputting a current detection signal, and a current detection from the current detection current transformer (30). An arithmetic processing means (35) for receiving a signal and outputting an alarm signal when the used current exceeds a predetermined value; and an arithmetic processing means (35)
And an alarm sound generating means (42) for notifying excessive use of electricity by voice in response to an alarm signal from the user.

Here, "the case where the used current exceeds a predetermined value" means that a predetermined value near the current value at which the contract breaker (23) or the main breaker (21) operates according to the contract with the electric power company. This means that the current value exceeds a predetermined current value. For example, when the rated current is 20 A, 30 A, 40
Of the various types A, 50A and 60A, when the rated current is set to 60A by contract with the electric power company, and the total current used by the contract breaker (23) or the main breaker (21) exceeds 60A Etc. are included.

According to the present invention, a current detection current transformer (30) detects a working current flowing through a breaker (20), and the current detection current transformer (30) outputs a current detection signal to an arithmetic processing means (35). I do. Then, upon receiving the current detection signal from the current detection current transformer (30), the arithmetic processing means (35) compares and determines the used current with a predetermined current value, and the used current exceeds the predetermined value. If an alarm occurs, an alarm signal is output. The alarm sound generating means (42) which has received the alarm signal notifies the user of excessive use of electricity by sound. For this reason, even if the distribution board (10) is not always observed, when the used current exceeds a predetermined value, it is possible to know that the user is using too much electricity by ear. As a result, the breaker (20) can be actuated, and it is possible to take measures such as turning off some of the devices using electricity before all the power is turned off. ) Can be prevented from turning off all the power. In addition, since excessive use of electricity is notified by voice, it is possible to clearly notify what the alarm is, as compared with a buzzer, a signal sound, or the like, and to quickly move to the next action.

The second aspect of the present invention is the first aspect of the present invention.
In addition to the features described, the distribution board (10) is provided with a distribution board slave unit (1) placed in a room different from the room where the body of the distribution board (10) is placed.
2), and this distribution board slave unit (12) is provided with arithmetic processing means (35)
And a use current display means (50) for displaying a use current in response to a current detection signal from the current detection current transformer (30).

According to the present invention, the distribution board slave unit (12) is arranged in a room different from the room in which the main body of the distribution board (10) is arranged, and the distribution board slave unit (12) is provided with arithmetic processing means (35). ) And alarm sound generation means
(42), and used current display means (50). Therefore, even if the user is moving to another room away from the room where the main body of the distribution board (10) is arranged, the current use current state can be observed by observing the use current display means (50). You can know.

Further, even if the operating current display means (50) of the distribution board slave unit (12) is not always observed, if the operating current exceeds a predetermined value, the alarm sound generating means (42) will sound. You can know that you are using too much electricity. Because of this, breakers
Before turning off (20), it is possible to take measures such as turning off some of the equipment that is using electricity, and suddenly the breaker (20) is activated and all power is turned off. Can be prevented.

The third aspect of the present invention is the first aspect of the present invention.
Alternatively, in addition to the features described in claim 2, an arithmetic processing means (35)
When the use current exceeds a predetermined value in response to the alarm signal from the power supply, the power supply of the power using equipment provided with the predetermined priority is switched according to the predetermined priority until the use current falls to the predetermined value. Power supply cutting means (70) for sequentially turning off the power.

Here, the "predetermined value" of "when the used current exceeds a predetermined value" or "until the used current falls to a predetermined value" is the "predetermined value of the used current". When the value is exceeded, it means the same as the "predetermined value." In addition, here, "the power using equipment provided with a predetermined priority" or "according to a predetermined predetermined priority"
The `` predetermined priority '' refers to power-consuming equipment that requires a certain amount of current to be used to a certain extent. Therefore, when power is restored, the order of power-consuming devices that can be easily restored without requiring any special labor is determined in the order of the power-consuming devices. For example,
The case where two air conditioners are used includes a case where one of the air conditioners is set as the first priority and the other is set as the second priority.

According to the present invention, the power supply cut-off means (70) is provided for a power-using device provided with a predetermined priority when the use current exceeds a predetermined value in response to an alarm signal from the arithmetic processing means (35). The power supply is sequentially turned off in accordance with a predetermined priority order until the use current falls to a predetermined value. As described above, since the used devices that have little effect even if the power is suddenly turned off are set in advance with priorities, there is no need for a person to determine the used device to be turned off. Further, the power supply is sequentially turned off according to a predetermined priority order until the use current falls to a predetermined value,
It is very convenient because there is no need for humans to turn off the equipment to be used, and there is no hassle.

According to a fourth aspect of the present invention, in addition to the features of the first, second, or third aspect, the arithmetic processing means (35) further comprises:
There is provided a return sound generating means (43) for outputting a return signal and notifying that the electricity can be used by voice based on the return signal from the arithmetic processing means (35). Here, "when the used current has returned to the predetermined value" means that the used current has decreased to such an extent that the necessary amount of current for the used device interrupted by the power supply cut-off means (70) can be secured. That means the case. For example, the rated current set by a contract with a power company is 20A, 30A, 40A, 50A.
When A and 60A are set, respective return currents are set to 10A, 21A, 32A, 42A and 52A. Then, when the use current is equal to or less than the return current for a predetermined time, a return signal is output from the arithmetic processing means (35), and the return sound generating means receiving the return signal receives the return signal.
(43) includes those formed so as to notify the user that electricity can be used by voice.

According to the present invention, when the used current returns to a predetermined value, a return signal is output from the arithmetic processing means (35). Then, based on the return signal from the arithmetic processing means (35), the return sound generating means (43) notifies that the electricity can be used by voice. As a result, even when the power of the equipment used is turned off, the power cut-off means (70) can notify the user that the used current has returned to the predetermined value, even if the user is not always looking at the distribution board (10). Can be easily known by ear.

The invention according to claim 5 is the same as the above-described claim 4.
In addition to the features described in the description, a power return means for sequentially returning the power of the power-consuming equipment provided with a predetermined priority according to a predetermined priority according to a return signal from the arithmetic processing means (35). (60).
According to the present invention, the power return means (60) is provided with the arithmetic processing means (3
In response to the return signal from 5), the power supplies of the power-consuming devices having the predetermined priorities are sequentially returned according to the predetermined predetermined priorities. Therefore, the user does not need to confirm that the used current has returned to the original state and restore the power supply of the used device according to a predetermined priority. Thus, when the operating current returns to the predetermined value or less, the user can return the device whose power is in the off state to the on state without operating the power supply for each user. Can be avoided.

According to a sixth aspect of the present invention, there is provided a breaker (20).
Is provided with a main breaker (21) and a plurality of branch breakers (22) provided corresponding to the branch circuit, and detects a branch use current flowing through the branch breaker (22) and detects a branch current. Branch current detection current transformer that outputs a signal
(31), and branch current display means (51) for receiving a branch current detection signal from the branch current detection current transformer (31) and displaying a branch use current.

According to the present invention, the branch current detection current transformer (31) detects a branch current value flowing through the branch breaker (22) and outputs a branch current detection signal. Upon receiving the branch current detection signal from the branch current detection current transformer (31), the branch current display means (51) displays the branch current. For this reason, it is possible to know how much current flows through which equipment used for each branch breaker (22) and how much electricity is being used. As a result, it is possible to easily determine the selection of the device to be used for turning off the power, and it is possible to more accurately control the current to be used.

[0024]

Embodiments of the present invention will be described below in more detail with reference to the drawings. 1 and 2 show a first embodiment of the present invention. FIG. 1 is a schematic diagram of a distribution board, and FIG. 2 is a schematic conceptual diagram of the distribution board. First, the configuration of the present embodiment will be described.

The distribution board 10 according to the present embodiment is formed halfway from home single-phase three-wire low-voltage indoor wiring to electric equipment and has a branch circuit. Is what it is. The distribution board 10 is connected to a breaker 20
And a current detection current transformer 30 attached to the breaker 20 for detecting a current used and outputting a current detection signal, and receiving a current detection signal from the current detection current transformer 30 so that the current used becomes a predetermined value. An arithmetic processing means 35 for outputting an alarm signal when the power is exceeded, and an alarm sound generating means 42 for notifying an excessive use of electricity by voice based on the alarm signal from the arithmetic processing means 35 are provided.

The breaker 20 includes a contract breaker 23 incorporated based on a contract with an electric power company incorporated in the distribution board 10, and an earth leakage prevention device connected to the secondary wiring of the contract breaker 23. And a plurality of branch breakers 22 that are connected in parallel with the wiring on the secondary side of the main breaker 21 and that are provided corresponding to the branch circuits of the main breaker 21.

The distribution board 10 according to the present embodiment includes:
A use current display means 50 for receiving a current detection signal from the current detection current transformer 30 and displaying a use current, and an arithmetic processing means 35
When the use current exceeds a predetermined value in response to the alarm signal from the power supply, the power supply of the power using equipment provided with the predetermined priority is switched according to the predetermined priority until the use current falls to the predetermined value. And a power supply cutting means 70 for sequentially turning off the power.

The arithmetic processing means 35 is formed to output a return signal when the used current returns to a predetermined value. Then, the distribution board 10 is provided with a predetermined priority by the return signal from the arithmetic processing means 35, the return voice generating means 43 for notifying that the electricity can be used by voice, and the return signal from the arithmetic processing means 35. There is provided a power return means 60 for sequentially recovering the power of the power-consuming device in accordance with a predetermined priority order.

Specifically, the distribution board 10 according to the present embodiment
Is a main body thereof, a distribution board main body 11 having a contract breaker 23, a main breaker 21, a branch breaker 22, and a current detection current transformer 30, and a room different from the room where the distribution board main body 11 is arranged. And a distribution board slave unit 12 arranged.
The distribution board slave unit 12 has an overall shape of a substantially thin rectangular shape, and includes the arithmetic processing unit 35, the used current display unit 50, the alarm sound generation unit 42, the return sound generation unit 43, and the power supply cut unit 70.
And power return means 60.

More specifically, the used current display means
Reference numeral 50 is located on the upper left side on the front side of the interior of the distribution board slave unit 12, and is formed so as to display the current used current by a two-digit digital display using a 7-segment LED. The current detection current transformers 30 are arranged at both ends on the primary side of the main breaker 21, and are formed so as to detect a combined sum current of each phase. Specifically, the low-voltage large current flowing to the temporary side of the main breaker 21 is transformed into a small current for processing by the arithmetic processing means 35.

The arithmetic processing means 35 is built in the lower left portion on the front side of the interior of the distribution board slave unit 12 and comprises a central processing unit (CPU) and a plurality of integrated circuits (ICs).
Predetermined arithmetic processing can be performed by program software incorporated in advance. The arithmetic processing means 35 is built in the distribution board slave unit 12, and on the front side thereof, although not particularly shown, a rating setting current switching knob capable of switching a rating setting current, and an alarm sound generation means. A volume control knob for adjusting the volume of the built-in speaker from the return sound generating means 43 and the built-in speaker in three steps is formed.

The alarm sound generating means 42 is connected to the distribution board slave unit 12.
A speaker is built in, and a warning signal is inputted from the arithmetic processing means 35, and the voice is synthesized by the LSI inside the speaker in accordance with a pre-installed program. It is formed so that a predetermined audio language can be output from the built-in speaker.
Similarly, the return sound generating means 43 is also located on the right side of the indoor front side of the distribution board slave unit 12, has a built-in speaker, and receives a return signal from the arithmetic processing means 35, It is formed so that a predetermined voice language can be output from a built-in speaker according to a program incorporated in advance by voice synthesis of the LSI inside the device.

The power cut means 70 and the power return means 60
Is located on the upper right side of the indoor front side of the distribution board slave unit 12,
An internal control device is provided, and upon receiving an alarm signal or a return signal from the arithmetic processing means 35, the power supply of the equipment with a predetermined priority can be sequentially turned off or on. Things. Further, the power cut means 70 and the power return means 60 are set so that the on / off state of the device to be used can be manually operated by pressing a switch on the front side of the distribution board slave unit 12. . In the present embodiment, the two devices used, the air conditioner P and the air conditioner Q, are set in priority order 1 and priority order 2, and their power supplies are operated by two operation switches arranged on the front of the distribution board slave unit 12. It is set so that it can be operated by 65.

Next, the operation state of the distribution board 10 according to the present embodiment will be described for each range of the used current. Here, the rated current is set to 20 A, 30 A according to a contract with the power company.
A, 40A, 50A and 60A are set to 60A. The priority order for turning off the power of the used equipment is set in the order of the air conditioner P and the air conditioner Q.

First, if the operating current is less than 100% of the rated current of 60 A, the contract breaker is used.
23 and the master breaker 21 do not operate. Then, only the use current display means 50 of the distribution board slave unit 12 displays the use current, and the other alarm sound generation means 42, power supply cut means 70, return sound generation means 43, and power supply return means 60 do not operate. Next, when the used current is 100% or more and less than 110% of the rated set current of 60 A, the contract breaker 23 and the master breaker 21 do not operate. Then, the used current display means 50 of the distribution board slave unit 12 displays the used current, and
The alarm sound generating means 42, which has received the alarm signal from 35, outputs a sound "Electricity is excessively used" from the built-in speaker every three minutes. On the other hand, the power cut means 70 and the power return means 60 do not operate.

Next, the current used is 60, which is the rated set current.
In the case of 110% or more and less than 120% of A, the contract breaker 23 and the main breaker 21 are set to operate when the above-mentioned current consumption continues for 60 seconds, and the breaker is turned off. On the other hand, the power cut-off means 70 is activated when the state of the used current continues for 45 seconds, and turns off the power of the used equipment in the order of the air conditioner P which is the used equipment and the air conditioner Q in accordance with a predetermined priority order. It is set to be in a state. At this time, the alarm sound generating means 42 outputs a sound saying "excessive use of electricity" every 10 seconds at the above-mentioned current condition, and a sound saying "power will be turned off soon" 40 seconds later. Then, when the power of the air conditioner P is turned off after 45 seconds, the sound of "power turned off" is output from the alarm sound generation means 42 after 50 seconds.

Next, the current used is 60, which is the rated set current.
In the case of 120% or more and less than 140% of A, the contract breaker 23 and the main breaker 21 are set to operate when the above-mentioned state of use current continues for 20 seconds, and the breaker is turned off. On the other hand, the power supply cut-off means 70 is activated when the state of the used current continues for 15 seconds, and turns off the power of the used equipment in the order of the air conditioner P which is the used equipment and the air conditioner Q in accordance with a predetermined priority order. It is set to be in a state. At that time, the alarm sound generating means 42 outputs a sound saying "excessive use of electricity" after 5 seconds in the state of the used current and a sound saying "soon to turn off the power" after 10 seconds. Then, when the power of the air conditioner P is turned off after 15 seconds, the sound of "power turned off" is output from the alarm sound generation means 42 after 20 seconds.

Next, the operating current is 60, which is the rated set current.
In the case of 140% or more of A, the contract breaker 23 and the master breaker 21 are set to operate when the above-mentioned state of the use current continues for 4 seconds, and the breaker is turned off. on the other hand,
The power supply cut-off means 70 is activated when the state of the used current continues for 2 seconds, and turns off the power of the used equipment in the order of the air conditioner P which is the used equipment and the air conditioner Q in accordance with a predetermined priority order. Is set to At this time, when the power supply of the air conditioner P is turned off after the above-mentioned state of the used current has continued for 2 seconds, the sound of "power turned off" is output from the alarm sound generation means 42 after 7 seconds.

Next, in each case described above,
Even after the air conditioner P is shut off, if the operating current is 110% or more of the rated set current of 60 A, the air conditioner set to the second priority among the devices used by the power supply cut-off means 70 within two seconds. The power supply of Q is turned off, and after 5 seconds, a voice of “power has been turned off” is output from the alarm voice generating means 42.

Next, in each case described above,
After the power supply of the air conditioner P and the air conditioner Q is turned off by the power supply cut-off means 70 and the use current is 52 A or less, which is 8 A lower than the rated set current of 60 A, for one minute, the air conditioner is returned by the power supply return means 60. Automatic return in the order of Q, air conditioner P. The current value of 52 A is set as a return current value when the rated set current is 60 A. By the way, each rated set current is 20A, 30
A, 40A and 50A each return current value is 10
A, 21A, 32A and 42A, respectively. Of course, each of these return current values is not limited to the numerical values described above, and may be set to other numerical values.

Specifically, one minute after the use current has reached the return current value or less, a return signal is output from the arithmetic processing means 35 to the power return means 60, and the power return means receiving the return signal receives the return signal.
60 automatically returns the power supply of the air conditioner Q. Then, 5 seconds after the air conditioner Q is restored, a return signal is output from the arithmetic processing means 35 to the return sound generating means 43, and the return sound generating means 43 receiving the return signal outputs the sound from the built-in speaker as "use electricity."". Further, even after the sound output from the return sound generation means 43, the operation processing means 35 which has received the current detection signal from the current detection current transformer 30 continuously monitors the used current, and the used current is still restored. If the current value is less than the current value, the arithmetic processing means 35
, A return signal is output to the power return means 60, and the power return means 60 automatically returns the power of the air conditioner P. Then, 5 seconds after the air conditioner P is restored, a return signal is output from the arithmetic processing means 35 to the return sound generating means 43, and the return sound generating means 43 receiving the return signal outputs the sound from the built-in speaker as “use electricity. ”.

Next, the operation and effect of the above embodiment will be described. In the present embodiment, the current detection current transformer 30
Thus, the current used in the main breaker 21 is detected, and a current detection signal is output to the arithmetic processing means 35. Then, the arithmetic processing means 35 receiving the current detection signal from the current detection current transformer 30 compares and determines the used current with a predetermined current value, and when the used current exceeds the predetermined value, An alarm signal is output. Alarm sound generating means receiving this alarm signal
42 indicates by voice the overuse of electricity. For this reason, even if the distribution board 10 is not always observed, when the current used exceeds a predetermined value, it is possible to know that the user is using too much electricity by ear. As a result, the breaker 20 operates,
It is possible to take measures such as turning off some of the equipment that uses electricity before all power is turned off, and suddenly the breaker 20 is activated and all power is turned off. Can be prevented. In addition, since it notifies the user of excessive use of electricity by voice, it is possible to clearly inform what kind of alarm it is by comparing it with a buzzer or signal sound, etc.
It is possible to quickly move to the next action without mistaken for a ring tone of a mobile phone or an electronic sound of an alarm clock.

In the present embodiment, the distribution board slave unit 12 is arranged in a room different from the room in which the main body of the distribution board 10 is arranged. For,
Even if the user has moved to another room away from the room where the main body of the distribution board 10 is arranged, the current state of the current used can be known by observing the current used display means 50. Also,
Since the distribution board slave unit 12 is provided with the alarm sound generation means 42, even if the used current display means 50 of the distribution board slave unit 12 is not always observed, if the used current exceeds a predetermined value, The alarm sound generation means 42 allows the user to know the excessive use of electricity by sound. For this reason, it is possible to take measures such as turning off a part of the equipment that uses electricity before the breaker 20 is turned off, and it is possible to suddenly turn off the breaker 20 and turn off all the power. Can be prevented.

In the present embodiment, the power supply cut-off means 70 is an air conditioner which is a power-consuming apparatus having a predetermined priority when the use current exceeds a predetermined value in response to an alarm signal from the arithmetic processing means 35. The power supplies of the air conditioner P and the air conditioner Q are sequentially turned off in accordance with the order of the air conditioner P and the air conditioner Q, which are predetermined predetermined priorities, until the current used falls to a predetermined value. As described above, since the air conditioner, which is a device that is less likely to be affected even if the power is suddenly turned off, is set in advance with a priority order, there is no need for a person to determine the device to be turned off. In addition, until the use current falls to a predetermined value, according to a predetermined priority order,
Since the power is turned off, there is no need for a person to turn off the power of the equipment used, which is very convenient and convenient.

In this embodiment, when the used current returns to a predetermined value, the return signal is output from the arithmetic processing means 35.
Then, based on the return signal from the arithmetic processing means 35, the return sound generating means 43 notifies the use of electricity by voice. Thus, even when the power of the device to be used is turned off, the use current can be easily returned to a predetermined value by the power cut-off means 70 by voice even if the user does not always look at the distribution board 10. You can know.

According to the present embodiment, the power return means 60
In response to the return signal from the arithmetic processing means 35, the power supplies of the air conditioner P and the air conditioner Q, which are the power-consuming devices having the predetermined priorities, are changed in order of the air conditioner Q and the air conditioner P having the predetermined predetermined priorities. According to the above. Therefore, it is not necessary for the user to confirm that the used current has returned to the original state, and to restore the power supply of the used device according to a predetermined priority. Thus, when the operating current returns to the predetermined value or less, the user can return the device whose power is in the off state to the on state without operating the power supply for each user. Can be avoided.

Next, a second embodiment will be described. 3 and 4 show a first embodiment of the present invention. FIG. 3 is a schematic diagram of a distribution board, and FIG. 4 is a schematic conceptual diagram of the distribution board. In the present embodiment, the breaker 20
However, there are a contract breaker 23, a main breaker 21, and six branch breakers 22 provided corresponding to the branch circuits. The distribution board 10 detects a branch use current flowing through the branch breaker 22 and outputs a branch current detection signal. The branch current detection current transformer 31 outputs a branch current detection signal. And a branch current display means 51 for receiving the current detection signal and displaying the branch use current. This branch current display means 51 is, specifically, on the indoor front side of the distribution board body 11,
It has six display windows 52 for displaying current use currents corresponding to branch breakers 22 such as entrances and kitchens. Each of the display windows 52 has a 7-segment L capable of displaying two digits digitally.
It is formed by ED.

The distribution board 10 according to the present embodiment
As in the first embodiment, a current detection current transformer 30 attached to the primary side wiring of the main breaker 21 to detect a used current and output a current detection signal, and a current detection current transformer 30
And a main body use current display means 53 for displaying the use current in response to the current detection signal. As shown in FIG. 3, the main-unit-use current display means 53 is a seven-segment LED capable of displaying a two-digit digital signal. It is arranged adjacent to.

Then, the current detection signal from the current detection current transformer 30 is output to the arithmetic processing means 35 and the used current display means 50 of the distribution board slave unit 12. Thereafter, the inside of the distribution board slave unit 12 is formed so as to operate according to the same procedure with the same configuration as that of the first embodiment. Note that the same components as those of the first embodiment are assigned the same component numbers, and descriptions thereof are omitted.

In this embodiment, the branch current detection current transformer 31
Detects the value of the branch current flowing through the branch breaker 22, and outputs a branch current detection signal. Then, upon receiving the branch current detection signal from the branch current detection current transformer 31,
The branch current display means 51 displays the branch use current. For this reason, which of the equipment used for each branch breaker 22
You can see how much current is flowing and how much electricity is being used. As a result, it is possible to easily determine the selection of the device to be used for turning off the power, and it is possible to more accurately control the current to be used.

More specifically, a person who hears the voice alarm of "electricity is excessively used" from the alarm voice generating means 42 of the distribution board slave unit 12 goes to the installation location of the distribution board body 11 and branches. By looking at the current display means 51, it is possible to visually confirm how much electricity is used in the equipment used for which branch breaker 22. Then, the used equipment whose power is to be turned off is determined, and the user goes directly to the place of the used equipment to turn off the power of the used equipment. This makes it possible to make various determinations according to the usage status of the room and the usage status of the equipment used, and to more accurately control the usage current.

In the above-described first and second embodiments, only the air conditioner P and the air conditioner Q are assigned priorities in advance, but this is not particularly limited. It may be set in other devices such as a microwave oven. Further, the number of used devices for which the priorities are set is not limited to two, and the priorities may be set to two or more used devices.

Further, in the first and second embodiments described above, only one distribution board slave unit 12 is formed for one distribution board body 11, but the distribution board slave unit 12 is formed. The number is not limited to this, and two or more distribution board slave units 12
May be connected to the distribution board body 11 in parallel. For example, in a three-story building, one distribution board slave unit 12 may be arranged on each floor, or one distribution board slave unit 12 may be arranged in each room. Things.

In the first and second embodiments described above, the switchboard 10 is connected to the switchboard subunit 12 from the switchboard body 11.
Are formed apart from each other. However, the present invention is not particularly limited to this, and an integrated distribution board 10 in which the distribution board slave unit 12 is incorporated in the distribution board main body 11 may be used.

[0055]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the described invention, even if you do not always look at the distribution board,
It is possible to provide a distribution board that can be informed that the used current has exceeded a predetermined value, and can prevent a breaker from operating and suddenly turning off all power.

According to the second aspect of the present invention, it is possible to provide a distribution board which can know that the current used exceeds a predetermined value even in a room where no distribution board is arranged. According to the third aspect of the present invention, when the used current exceeds a predetermined value, the power supply cut-off unit turns off the power of the used equipment, thereby providing a power distribution board with less trouble.

According to the fourth aspect of the present invention, it is possible to provide a distribution board that allows the user to easily know that the used current has returned to a predetermined value without looking at the distribution board. According to the invention as set forth in claim 5, when the used current returns to the predetermined value, the power can be returned to the on state without operating the power supply of the used device in the off state, and no trouble is required. A distribution board can be provided.

According to the sixth aspect of the present invention, it is possible to know the branch use current flowing through the branch breaker, and to determine which equipment is to be turned off when the use current exceeds a predetermined value. Can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a distribution board according to a first embodiment of the present invention.

FIG. 2 is a schematic conceptual diagram showing a distribution board according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a distribution board according to a second embodiment of the present invention.

FIG. 4 is a schematic conceptual diagram showing a distribution board according to a second embodiment of the present invention.

FIG. 5 is an external perspective view showing a conventional distribution board.

[Explanation of symbols]

10 Distribution board 11 Distribution board main unit 12 Distribution board slave unit 20 Breaker 21 Main breaker 22 Branch breaker 23 Contract breaker 30 Current detection current transformer 31 Branch current detection current transformer 35 Arithmetic processing means 36 Branch arithmetic processing means 42 Alarm sound Generating means 43 Return sound generating means 50 Current use display means 51 Branch current display means 52 Display window 53 Main unit use current display means 60 Power supply return means 65 Operation switch 70 Power cut off means 110 Distribution board main body 120 Contract breaker 130 Master breaker 140 Branch breaker

Claims (6)

[Claims] 1. A breaker, a current detection current transformer attached to the breaker for detecting a current used, and outputting a current detection signal, and a current detection signal received from the current detection current transformer reduces the current used. A power distribution unit comprising: arithmetic processing means for outputting an alarm signal when a predetermined value is exceeded; and alarm sound generating means for notifying excessive use of electricity by voice based on the alarm signal from the arithmetic processing means. Board. 2. The distribution board includes a distribution board slave unit disposed in a room different from a room in which a main body of the distribution board is arranged. The distribution board slave unit includes an arithmetic processing unit, an alarm sound generation unit, 2. The distribution board according to claim 1, further comprising: used current display means for receiving a current detection signal from the current detection current transformer and displaying a used current. 3. When the use current exceeds a predetermined value in response to an alarm signal from the arithmetic processing means, the power supply of the power using equipment provided with a predetermined priority is preset until the use current falls to the predetermined value. 3. The distribution board according to claim 1, further comprising a power supply cut-off unit for sequentially turning off the power supply in accordance with a predetermined priority order. 4. The arithmetic processing means outputs a return signal when the current used has returned to a predetermined value, and the return signal from the arithmetic processing means provides a return sound generating means for notifying that electricity can be used by voice. The distribution board according to claim 1, wherein the distribution board is provided. 5. A power supply returning means for sequentially returning power supplies of power-consuming devices having a predetermined priority according to a predetermined priority according to a return signal from the arithmetic processing means. The distribution board according to claim 4, characterized in that: 6. A circuit breaker comprising: a main circuit breaker; and a plurality of branch circuit breakers provided corresponding to the branch circuits. The circuit breaker detects a branch use current flowing through the branch circuit breaker and outputs a branch current detection signal. And a branch current detection means for receiving a branch current detection signal from the branch current detection current transformer and displaying a branch use current. 2. The distribution board according to claim 3, claim 4, or claim 5.