JP5962445B2 - Distribution board - Google Patents

Description

  Embodiments described herein relate generally to a distribution board.

  There is a power calculation unit provided in a house and connected to a distribution board installed in the house via a wiring. The power calculation unit acquires a current value of a current flowing through the branch circuit transmitted from each of the plurality of branch breakers of the distribution board via the wiring. Then, the power calculation unit calculates the power consumption of the electronic devices in each room belonging to each branch breaker from the acquired current value, and transmits the calculated power consumption to the access point. When receiving each power consumption amount, the access point transmits each received power consumption amount to the management server via the network. When receiving each power consumption, the management server transmits each received power consumption to the user's terminal. Thereby, the user can grasp | ascertain the power consumption of the electronic device of each room corresponding to each branch breaker.

  However, in the above distribution board and power calculation unit, wiring is used when connecting the distribution board and the power calculation unit.

Home IT system, [October 25, 2012 search], Internet (URL: http://www.toshiba.co.jp/env/jp/communication/2009/exh/pdf/ecopro2009/ecopro0909.pdf)

  The problem to be solved by the present invention is to provide a distribution board that is small in size and can be reduced in cost.

  The distribution board according to the embodiment stops the power supply to the circuit and detects the current value flowing through the circuit when the current flowing through the circuit board and the circuit board on which the signal lines are formed exceed a predetermined value. A breaker that sends the detected current value to the signal line, and a current detection value that is connected to the signal line and sent from the breaker via the signal line, and calculates the power consumption of the circuit based on the received current detection value And a communication unit connected to the power calculation unit and transmitting information related to the power consumption calculated by the power calculation unit to a predetermined device.

  According to the distribution board of the embodiment, it can be expected that the size is small and the cost is suppressed.

FIG. 1 is a diagram illustrating a configuration example of a power management system to which a distribution board according to an embodiment is applied. FIG. 2 is a perspective view showing the distribution board according to the embodiment. FIG. 3 is a diagram for explaining an electrical connection relationship inside the distribution board 1. FIG. 4 is a cross-sectional view of a surface including a power calculation unit, a communication unit, and a conductive bar.

  A distribution board according to an embodiment described below includes a substrate on which signal lines are formed. When the current flowing through the circuit exceeds a predetermined value, the distribution board according to the embodiment stops power supply to the circuit, detects the current value flowing through the circuit, and uses the detected current detection value as a signal line. A breaker for sending out is provided. The distribution board according to the embodiment is connected to the signal line, receives the current detection value sent from the breaker via the signal line, and calculates the power consumption of the circuit based on the received current detection value It comprises. The distribution board according to the embodiment includes a communication unit that is connected to the power calculation unit and transmits information related to the power consumption calculated by the power calculation unit to a predetermined device.

  The distribution board according to the embodiment described below further includes a power supply device that supplies power to the power calculation unit and the communication unit.

  Moreover, in embodiment described below, electric power is supplied from a power supply by connecting a breaker to the conductive bar connected to the power supply. In the embodiment, at least one of the power calculation unit and the communication unit includes an engaging portion that can be engaged with the conductive bar, and includes a terminal that is connected to the signal line.

  In the embodiment described below, the substrate has a first long side and a second long side facing each other, a power calculation unit is provided on the first long side, and the second long side is on the second long side. A communication unit is provided.

  In the embodiment described below, the assumed installation surface is a vertical surface, the power calculation unit is provided above the installation surface, and the communication unit is provided below.

  In the embodiments described below, the transmission unit can be replaced with a communication unit of a different transmission method.

  Hereinafter, a distribution board according to an embodiment will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a power management system 100 to which a distribution board 1 according to the embodiment is applied.

  As illustrated in FIG. 1, the power management system 100 includes one or more user terminals 6, a management server 7, and a home network system 10. A user terminal 6, a management server 7, and a gateway device 4 described later of the home network system 10 are connected via a network 8. The network 8 is the Internet or an intranet.

  The home network system 10 is provided, for example, in a user's home or store, and includes a distribution board 1, an access point 3, a gateway device 4, a user terminal 5, and the like. In this system, the information related to the power consumption measured by the distribution board 1 can be notified to the management server 7. In addition, in the management server 7, information related to the power consumption that has undergone necessary processing is presented to the user terminal 5 and the user terminal 6 via the network 8.

  The distribution board 1 is provided on a wall of a user's home or in a store room. The distribution board 1 has a plurality of branch breakers 15 to be described later. Each of the plurality of branch breakers 15 cuts off the supply of power to the circuit when the current flowing through the circuit belonging to the branch breaker 15 exceeds a predetermined value. The circuit includes a load device, and the supply of power to the load device is stopped when the power supply to the circuit is interrupted. Examples of load devices include refrigerators, televisions, air conditioners, cooking heaters, heating appliances, home appliances such as washing machines, and the like.

  Each branch breaker 15 includes a current detector (not shown) that detects a current flowing to a corresponding circuit (load device). The distribution board 1 calculates the power consumption, which is the power consumed by the load device corresponding to each branch breaker 15 to which each circuit belongs, from the current flowing through each circuit at a predetermined time interval, and calculates the calculated power consumption. The amount is transmitted to the access point 3. The transmission to the access point 3 uses information communication technology such as wired LAN in addition to short-range wireless communication technology such as Bluetooth (registered trademark).

  The access point 3 communicates with the communication adapter 1 using a short-range wireless technology such as Bluetooth or a home LAN (Local Area Network). The access point 3 is connected to the gateway device 4. When the power consumption amount is transmitted from the distribution board 1, the access point 3 receives the transmitted power consumption amount and transmits information related to the received power consumption amount to the gateway device 4. The access point 3 and the gateway device 4 may be integrated.

  For example, when the information related to the power consumption is transmitted from the access point 3, the gateway device 4 receives the information related to the transmitted power consumption. The gateway device 4 transmits all or part of the received information related to the power consumption amount to the management server 7 via the network 8.

  The user terminal 5 is a terminal that allows a user to browse information related to power consumption or information obtained by processing the information. Therefore, the user terminal 5 is an electronic device having at least a display function. Examples of user terminals are electronic devices including input devices and display devices such as personal computers, mobile phones, and power monitors. The user terminal 5 is connected to the gateway device 4 via a wireless or wired LAN. The user terminal 5 can display the power consumption of the load device in each room corresponding to the branch breaker 15 of the distribution board 1 such as the user's own house. Thereby, the user can grasp | ascertain the power consumption etc. of the load apparatus of each room corresponding to each branch breaker 15. FIG. Further, the user terminal 5 may further include a transmission device that transmits an instruction input from its own input device to the gateway device 4.

  The user terminal 6 is a terminal that allows the user to browse information related to power consumption or information obtained by processing the information. The user terminal 6 is an electronic device having at least a display function, such as a mobile phone such as a smartphone, a PDA (Personal Data Assistance), and a notebook computer. When receiving the information related to the power consumption transmitted from the management server 7, the user terminal 6 displays the power consumption of the load device corresponding to the branch breaker 15 of FIG. Thereby, the user can grasp | ascertain the power consumption etc. of the load apparatus corresponding to the branch breaker 15. FIG.

  When the management server 7 receives information on the power consumption from the gateway device 4 via the Internet 8, the management server 7 performs information processing necessary for terminal display. The power consumption display information is appropriately transmitted to the user terminal 6 and displayed on the user terminal 6. Thereby, the user can browse the power consumption amount in the home.

  As described above, in the power management system 100, the user terminal 6 is notified of information related to the power consumption of the load device corresponding to each branch breaker, and can be browsed by the user.

  Next, the configuration of the distribution board 1 according to the embodiment will be described. FIG. 2 is a perspective view showing an open state of the distribution board 1 according to the embodiment. As shown in FIG. 2, the distribution board 1 can be opened and closed on the front side of the cover 12, a base 12 having a rear surface for installation on a wall or the like, a frame-like cover 13 attached to the front side of the base 12. And a door 14 attached thereto. A limiter (not shown) whose primary side is connected to the power supply line is attached to the inside of the distribution board 1. Further, inside the distribution board 1, a main earth leakage breaker (not shown) connected to the primary side is attached to the secondary side of the limiter. A plurality of branch breakers 15 connected to the secondary side of the main earth leakage breaker are attached to the inside of the distribution board 1. A later-described PC (Printed Circuits) board 20 extending in the left-right direction of the distribution board 1 is installed inside the distribution board 1, and a cover 16 shown in FIG. 2 is attached to the PC board 20.

  Further, as shown in FIG. 2, on the inner side of the distribution board 1 of the present embodiment, a wall that is a vertical surface is used as an installation surface, and the installation rear surface provided on the base 12 of the distribution board 1 is used as the installation surface. The first unit 17 is provided on the upper side of the PC board 20 when installed, and the second unit 18 is provided on the lower side.

  FIG. 3 is a diagram for explaining an example of the electrical connection relationship inside the distribution board 1. With reference to FIG. 3, an example of the electrical connection relationship between the plurality of branch breakers 15 and the first unit 17 and the electrical connection relationship between the first unit 17 and the second unit 18 will be described. To do.

  As shown in FIG. 3, the first unit 17 includes a power supply device 17a and a power calculation unit 17b. The second unit 18 includes a communication unit 18a. The power supply device 17a is connected to, for example, a power supply line (not shown) branched from the system power supply, and supplies power obtained from the power supply line to the power calculation unit 17b and the communication unit 18a. As a result, the power calculation unit 17b and the communication unit 18a that have received power supply are operable.

  In FIG. 3, the power supply device 17a, the power calculation unit 17b, and the communication unit 18a provided in the first and second units 17 and 18 are indicated by broken lines. As shown in FIG. 3, a hole 17c is formed in the housing of the first communication unit 17, and the power calculation unit 17b is connected to seven connection lines 30a to 30g inserted through the hole 17c. Yes. Each of the connection lines 30a to 30g is directly connected to the seven signal lines of the PC board 20 via the connector 31a. Each of the seven signal lines is connected to each of the seven branch breakers 15 attached to the upper side of the PC board 20 with the distribution board 1 installed on the wall via a connector 15a.

  Furthermore, as shown in FIG. 3, the power calculation unit 17b is connected to seven connection lines 30h to 30n inserted through the holes 17c. Each of the connection lines 30h to 30n is connected to each of the seven signal lines of the PC board 20 via the connector 31b. Each of the seven signal lines is connected to each of the seven branch breakers 15 attached to the lower side of the PC board 20 with the distribution board 1 installed on the wall via a connector 15b.

  That is, as shown in FIG. 3, the PC board 20 has a long side on the connector 15a side and a long side on the connector 15b side that face each other, and a power calculation unit 17b is provided on the long side on the connector 15a side. A communication unit 18a is provided on the long side on the 15b side.

  Therefore, the power calculation unit 17 b is connected to each of the 14 branch breakers 15 via each of the 14 signal lines of the PC board 20. Therefore, the power calculation unit 17b can receive the amount of current flowing through each branch circuit detected by each branch breaker 15 at predetermined time intervals and transmitted from each branch breaker 15. That is, the power calculation unit 17b can receive information on the amount of current from each of the 14 branch breakers 15.

  Then, each time the power calculation unit 17b receives the current amounts of all the 14 branch breakers 15, the power calculation unit 17b calculates each load device corresponding to each branch breaker 15 to which each branch circuit belongs from the current and supply voltage flowing through each branch circuit. Calculate the power consumption. Here, as the supply voltage, the voltage of the power input to the distribution board 1 may be directly measured and used, or a preset voltage value may be used. For example, the voltage value can be directly measured by measuring a voltage value generated in a plurality of bus bars described later using a known method. For example, the voltage of each circuit can be set in advance using a dip switch or the like, and the set voltage value can be used. The power consumption obtained by the calculation is stored in the power calculation unit 17b as necessary. Then, the power calculation unit 17b sends information related to the calculated power consumption amount to the connection lines 35 and 36 upon receipt of the request or every time a certain period elapses. Note that the information related to the power consumption can be adopted as appropriate, for example, instantaneous power or integrated power.

  As shown in FIG. 3, the connection lines 35 and 36 are connected to a connector 37. The connector 37 is connected to the connector 38 via the wiring of the PC board 20. Connection lines 39 and 40 are connected to the connector 38. Here, a hole 50 is formed in the housing of the second unit 18, and the communication unit 18 a is connected to connection lines 39 and 40 inserted through the hole 50. Therefore, the communication unit 18a can receive information related to the power consumption amount of each load device corresponding to each branch breaker 15 transmitted from the power calculation unit 17b. In addition, according to the above-mentioned connector connection, more reliable signal transmission can be realized, but the connection method is not limited to the connector, and other methods such as contacts can be used.

  The communication unit 18a transmits the received information related to the power consumption of each load device to the access point 3 using a short-range wireless technology such as Bluetooth. Here, the communication unit 18a is not limited to a unit that performs wireless communication, and a unit that performs wired communication with the access point 3 can also be employed. Further, the communication unit 18a can be replaced with another type of unit having a different communication method. For example, when the communication unit 18a is a unit that performs short-range wireless communication such as Bluetooth, the communication unit 18a can be replaced with a unit that performs wired communication with the access point 3 through a wired LAN or the like. Therefore, according to the present embodiment, the communication unit 18a can be exchanged for a communication method unit in which the communication state is good according to the communication state and the like.

  Here, the distribution board 1 is a single-phase three-wire system, and if necessary, three plate-like conductive bars N, L1, and L2 as conductors also called bus bars connected to the secondary side of the main earth leakage breaker are used. Prepared. These conductive bars N, L1, L2 are arranged between the branch breakers 15 arranged in two rows. Each branch breaker 15 is connected to the conductive bar N of the neutral electrode and the conductive bar L1 of one voltage electrode, or connected to the conductive bar N of the neutral electrode and the conductive bar L2 of the other voltage electrode. As a result, each branch breaker 15 is used as 100V. Each branch breaker 15 is used as 200 V by being connected to the conductive bar L1 and the conductive bar L2 of both voltage electrodes.

  In the present embodiment, the power calculation unit 17b is attached to the conductive bars N, L1, and L2 by engaging with the conductive bars N, L1, and L2 described above. In the present embodiment, the communication unit 18a is also attached to the conductive bar by engaging with the conductive bars N, L1, and L2 described above. Such mounting will be described with reference to FIG. FIG. 4 is a cross-sectional view of a surface including the power calculation unit 17b and the communication unit 18a, and the conductive bars N, L1, and L2. As shown in FIG. 4, an engagement portion 60 that can be engaged with the conductive bars N, L1, and L2 is formed in the casing of the power calculation unit 17b. Then, as shown in FIG. 4, the engaging portion 60 and the conductive bars N, L1, and L2 are engaged, so that the power calculation unit 17b is attached to the conductive bars N, L1, and L2 described above. . As shown in FIG. 4, an engagement portion 61 that can be engaged with the conductive bars N, L1, and L2 is formed in the housing of the communication unit 18a. And as shown in FIG. 4, the communication unit 18a is mounted | worn with respect to the conductive bar N, L1, L2 mentioned above because the engaging part 61 and the conductive bar N, L1, L2 engage. Further, as described above, the power calculation unit 17b includes terminals connected to the signal lines of the PC board 20, that is, connectors 31a and 31b. Further, the communication unit 18 a includes a terminal connected to the signal line of the PC board 20, that is, a connector 38. It should be noted that at least one of the power calculation unit 17b and the transmission unit 18a is provided with an engagement portion that can be engaged with the conductive bar and a terminal that is connected to a signal line formed on the PC board 20. It can also be configured.

  As described above, the distribution board 1 according to the embodiment includes the PC board 20 on which signal lines are formed. The distribution board 1 according to the embodiment stops the power supply to the circuit when the current flowing through the circuit exceeds a predetermined value, detects the current value flowing through the circuit, and outputs the detected current detection value to the signal line. Branch breaker 15a is provided. The distribution board 1 according to the embodiment is connected to the signal line, receives the current detection value sent from the branch breaker 15a via the signal line, and calculates the power consumption of the circuit based on the received current detection value. A power calculation unit 17b is provided. The distribution board 1 according to the embodiment includes a communication unit 18 a that is connected to the power calculation unit 17 b and transmits information related to the power consumption calculated by the power calculation unit 17 b to the access point 3. Therefore, according to the distribution board 1 according to the embodiment, the power calculation unit 17b can receive the current detection value from the branch breaker 15 via the PC board 20 without using the wiring. Therefore, according to the distribution board 1 which concerns on embodiment, it is small and can suppress the cost of wiring. In addition, although demonstrated using PC board as an example of a board | substrate provided with a signal wire, it is not restricted to what printed the conductor pattern etc. on the board like a PC board, Conductor etc. were provided on the board. There may be.

  The distribution board 1 according to the embodiment further includes a power supply device 17a that supplies power to the power calculation unit 17b and the communication unit 18a.

  In the embodiment, the branch breaker 15 is connected to the conductive bars N, L1, and L2 connected to the power source, and thus power is supplied from the power source. In the embodiment, at least one of the power calculation unit 17b and the communication unit 18a includes the engagement portion 60 and the engagement portion 61 that can be engaged with the conductive bars N, L1, and L2, and the signal line of the PC board 20 And terminals such as connectors. By engaging the engaging portion 60 or the engaging portion 61 with the conductive bars N, L1, and L2, the power calculation unit 17b and the communication unit 18a can be mounted. Therefore, the power calculation unit 17b and the communication unit 18a can be attached without newly providing new parts to be attached. Therefore, according to the distribution board 1 which concerns on embodiment, cost can be suppressed further.

  Further, in the distribution board 1 according to the embodiment, the PC board 20 has a long side on the connector 15a side and a long side on the connector 15b side that face each other, and a power calculation unit 17b is provided on the long side on the connector 15a side. The communication unit 18a is provided on the long side of the connector 15b.

  Moreover, in the distribution board 1 which concerns on embodiment, the installation surface assumed is a vertical surface, the electric power calculation unit 17b is provided above the installation surface, and the communication unit 18a is provided below. Thereby, the distance between the access point 3 located on the lower side and the transmission unit 18a becomes closer, and more stable communication can be performed.

  Moreover, in the distribution board 1 which concerns on embodiment, the transmission unit 18a is exchangeable for the communication unit of a different transmission system. Therefore, according to the present embodiment, the communication unit 18a can be exchanged for a communication method unit in which the communication state is good according to the communication state and the like.

  In the distribution board 1 according to the embodiment, a connector for connecting the newly added branch breaker 15 to the PC board 20 is provided on the PC board 20, and the branch breaker 15 is newly added as necessary. Can also be added.

  Moreover, when the distribution board 1 according to the embodiment is attached to an indoor wall, the transmission unit 18a can be provided on the upper side. As a result, the transmission unit 18a is positioned at a higher position. Therefore, when there is an obstacle between the transmission unit 18a and the access point 3, the transmission unit 18a suppresses the influence of the obstacle. Thus, wireless communication with the access point 3 can be performed.

  As described above, according to the embodiment, it is possible to reduce the size and cost.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

1 Distribution board 15 Branch breaker 17b Power calculation unit 18a Communication unit 20 PC board

Claims (7)

A base with a rear surface for installation;
A substrate on which signal lines to be installed inside the base are formed;
Current detection means installed inside the base for detecting a current value flowing in a circuit corresponding to the branch breaker and sending the detected current detection value to the signal line;
Installed on the inner side of the base and mounted on a conductive bar to which the branch breaker is mounted so as to face an opening of a frame-like cover attached to the front side of the base, and is installed in parallel with the branch breaker A communication unit that transmits information related to the power consumption of the circuit corresponding to the branch breaker calculated based on the current detection value sent by the current detection unit to a predetermined device via a network;
A distribution board characterized by comprising: 2. The distribution board according to claim 1, wherein the communication unit transmits information necessary for terminal display related to power consumption of a circuit corresponding to the branch breaker to a predetermined device via a network. . The distribution board according to claim 1 or 2, wherein the information related to the power consumption is stored and sent to a predetermined device via a network upon receipt of a request or when a predetermined period has elapsed. . A power calculation unit installed inside the base;
The distribution board according to claim 1, further comprising a power supply device that supplies power to the power calculation unit and the communication unit.   5. The power distribution unit according to claim 4, wherein at least one of the power calculation unit and the communication unit includes an engagement unit that can be engaged with a conductive bar, and includes a terminal connected to the signal line. Board. The substrate includes a first long side and a second long side facing each other, the power calculation unit is provided on the first long side, and the communication unit is provided on the second long side. The distribution board according to claim 4 or 5, wherein The distribution board according to any one of claims 4 to 6, wherein the power calculation unit is provided on the upper side of the rear surface for installation, and the communication unit is provided on the lower side.

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