JP6399430B2 - Distributor panel mounting member, distribution panel internal unit, distribution panel - Google Patents

Description

  The present invention relates to a mounting member for a distribution board internal unit, a distribution board internal unit, and a distribution board, and more particularly, to a distribution board interior that communicates with a device outside a distribution board cabinet. The present invention relates to a mounting member, a distribution board internal unit, and a distribution board.

  Conventionally, there has been a distribution board in which a communication unit that performs communication with a power meter having a communication function is housed in a storage box (see, for example, Patent Document 1).

JP 2014-14237 A

  In the distribution board described in Patent Document 1, the communication unit is housed inside the storage box, but when the back side of the communication unit is blocked, the communication unit (distribution board internal unit) generates it. There was a problem that it was difficult for the heat to escape.

  The present invention has been made in view of the above problems, and provides a mounting member for a distribution board internal unit, a distribution panel internal unit, and a distribution panel that can easily release heat generated in the distribution panel internal unit. Objective.

The mounting member of the present invention communicates with a fixed portion fixed to an inner wall of a box-shaped distribution board cabinet and a device housed in the distribution board cabinet and outside the distribution board cabinet. An attachment part to which the inner device for distribution board is attached and a projecting portion projecting in the same direction from both sides of the fixed part are provided. The mounting portion is provided with a space between the projecting portions on the rear side of the distribution board inner unit, and the distribution panel with the rear surface of the distribution panel inner unit facing the space. panel for the instrument is Ru is configured to be mounted. The space between the projecting portions is a storage space for wiring connected to the distribution board internal unit attached to the attachment portion .

  An internal device for a distribution board according to the present invention is an internal device for a distribution board having a communication function that is attached to the cabinet for the distribution board using any of the mounting members described above. A second inner unit is provided. The first inner unit is attached to the attachment member. The second internal unit has a second connector that is detachably connected to a first connector provided at a rear portion of the first internal unit. The second internal unit is attached to the attachment member together with the first internal unit in a state of being attached to the first internal unit by connecting the second connector to the first connector.

  The distribution board according to the present invention includes any one of the above-described mounting members, the distribution board internal unit attached to the attachment member, and the distribution board internal unit attached to the attachment member. And a cabinet for electrical panel.

  By using the mounting member of the present invention, the distribution panel inner unit that communicates with the equipment outside the distribution panel cabinet is provided with a space behind the distribution panel inner unit. It can be attached to the cabinet 10 for distribution board, and the heat generated by the internal device for distribution board can be easily released.

  According to the inner device for a distribution board of the present invention, since it is attached to the cabinet for the distribution board using the mounting member, heat generated in the inner device for the distribution board can be easily released.

  According to the distribution board of the present invention, since the distribution board inner unit is attached to the distribution board cabinet using the mounting member described above, it is possible to easily release the heat generated in the distribution board inner unit.

It is a perspective view of the state before attaching the internal unit for distribution boards to the attachment member of this embodiment. It is a front view of the state where the outer cover and inner cover of the distribution board of this embodiment were removed. It is a front view of the state where the outer lid of the distribution board of this embodiment was removed. It is an external appearance perspective view of the electricity distribution panel of this embodiment. It is a front view of the state where the inner lid of the distribution board of this embodiment was removed. It is explanatory drawing which shows the attachment structure of the branch breaker of this embodiment, an electric current measuring device, and an electroconductive bar. 7A is a front view of the first communication adapter of this embodiment, FIG. 7B is a side view of the first communication adapter of this embodiment, FIG. 7C is a rear view of the first communication adapter of this embodiment, and FIG. 7D is this embodiment. It is a bottom view of the 1st communication adapter of a form. FIG. 8A is a front view of the third communication adapter of the present embodiment, and FIG. 8B is a side view of the third communication adapter of the present embodiment. It is a perspective view of the state where the internal unit for distribution boards was attached to the attachment member of this embodiment.

  Embodiments of a mounting member for a distribution board inner device, a distribution board inner device, and a distribution board will be described below with reference to the drawings. However, the configuration described below is only an example of the present invention, and the present invention is not limited to the following embodiment, and the technical idea according to the present invention is not deviated from this embodiment. Various changes can be made in accordance with the design or the like as long as they are not.

  In addition, although illustrated below about the case where the distribution board 1 of this embodiment is used in a detached house, it is not restricted to this example. That is, the distribution board 1 of this embodiment is provided in a consumer (facility), and may be used, for example, in each dwelling unit, office, store, or the like of an apartment house. In the following description, the top, bottom, left, and right (up, down, left, and right in FIG. 2) when the distribution board 1 is attached to the wall will be referred to as up, down, left, and right, and the direction orthogonal to the wall (paper surface in FIG. 2) will be described as the front and back direction. It is not intended to limit the direction in which the distribution board 1 is attached.

  As shown in FIG. 2, the distribution board 1 of the present embodiment includes a distribution board cabinet 10, a first communication adapter 7, a second communication adapter 8, a third communication adapter 9, and an attachment member 200. It has. Moreover, the distribution board 1 of this embodiment is further provided with the main breaker 2, the some branch breaker 3, and the measurement unit 6 as an internal device for distribution boards.

  As shown in FIGS. 2 to 5, the distribution board cabinet 10 includes a cabinet body 11, an outer lid 15, and an inner lid 16. As shown in FIG. 2, the cabinet body 11 is formed in a box shape having an open front surface. The cabinet body 11 is used by being attached to a wall of a house. As shown in FIGS. 2 and 6, the main body breaker 2, the plurality of branch breakers 3, the conductive bars 41, 42, 43, the current measuring device 5, the measuring unit 6, and the first communication adapter 7 are provided inside the cabinet body 11. And a space for housing the second communication adapter 8 and the third communication adapter 9.

  Further, the cabinet body 11 has a window hole 12 penetrating in the front-rear direction, and wiring can be drawn from the back of the wall into the cabinet body 11 through the window hole 12.

  As shown in FIGS. 3 and 4, the inner lid 16 is made of, for example, a synthetic resin and is formed in a rectangular frame shape with substantially the entire rear surface opened, and covers the front end portion of the side wall of the cabinet body 11. And attached to the cabinet body 11. A rectangular window hole 161 is formed on the front surface of the inner lid 16. A plurality of lid plates 162 to 165 are detachably attached to the inner lid 16 so as to close the window holes 161. The four lid plates 162 to 165 are set to have the vertical dimension substantially the same as the opening dimension of the window hole 161 in the vertical direction, and are attached to the inner lid 16 so as to be aligned in the horizontal direction. Thus, by attaching the inner lid 16 in which the window hole 161 is closed with the lid plates 162 to 165 to the front side of the cabinet body 11, the opening 14 of the cabinet body 11 is covered with the inner lid 16. . That is, the inner lid 16 and the lid plates 162 to 165 attached to the inner lid 16 constitute a lid that covers the opening 14 on the front surface of the cabinet body 11. Note that the inner lid 16 and at least one of the lid plates 162 to 165 may be integrally formed.

  The lid plate 162 located at the left end in FIG. 3 is attached to the inner lid 16 so as to cover the front surfaces of the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9. The cover plate 162 is provided with through holes 1621 and 1622 for exposing a part of the first communication adapter 7. In this embodiment, the display unit 771 is exposed from the upper through hole 1621, and the lower side is exposed. The operation button 781 is exposed from the through hole 1622.

  The lid plate 163 located second from the left end in FIG. 3 is attached to the inner lid 16 so as to cover a storage space in which a primary interconnection breaker (not shown) is attached inside the cabinet body 11.

  A lid plate 164 located third from the left end in FIG. 3 is attached to the inner lid 16 so as to cover the front surface of the main breaker 2. Through the hole 1641 of the cover plate 164, the handle of the main breaker 2 is exposed to the front side.

  The lid plate 165 located at the right end in FIG. 3 is attached to the inner lid 16 so as to cover the front surfaces of the plurality of branch breakers 3. The plurality of branch breakers 3 are arranged in two upper and lower rows in the storage space on the right side of the cabinet body 11. The cover plate 165 is provided with a window hole 1651 that exposes the handle of the branch breaker 3 arranged on the upper side, and a window hole 1652 that exposes the handle of the branch breaker 3 and the secondary interconnection breaker 100 arranged on the lower side. Yes.

  As shown in FIG. 4, the outer lid 15 is made of, for example, a synthetic resin, and is attached to the cabinet body 11 so as to cover the front surface of the inner lid 16 so as to be freely opened and closed. That is, the opening 14 of the cabinet body 11 is covered with the outer lid 16 so as to be freely opened and closed. The outer lid 15 is attached to the cabinet body 11 so as to be openable and closable via a hinge mechanism provided at the upper part of the cabinet body 11.

  The main breaker 2 includes a primary side terminal 21 and a secondary side terminal (not shown). A single-phase three-wire lead-in line (not shown) of a system power supply (commercial power supply) is electrically connected to the primary side terminal 21. Conductive bars 41, 42, and 43 as shown in FIG. 6 are electrically connected to the secondary terminal. The conductive bars 41, 42, and 43 are each formed in a long plate shape that is long in the left-right direction by a conductive member, and are attached to the front surface of the mounting base 44. In the distribution board 1 of this embodiment, since a single-phase three-wire system is assumed as a distribution system, the conductive bar 41 is a first voltage pole (L1 phase) conductive bar, and the conductive bar 42 is a second voltage pole (L2). The conductive bar 43 and the conductive bar 43 are used as neutral (N-phase) conductive bars. A conductive bar 41 of the first voltage electrode and a conductive bar 42 of the second voltage electrode are attached to the front surface of the mounting base 44 side by side. The conductive bars 41 and 42 are attached to the attachment base 44 so that the longitudinal direction thereof is parallel to the left-right direction. A column (not shown) that protrudes forward is provided at the center of the mounting base 44 in the vertical direction, and the neutral electrode conductive bar 43 is provided on the front side of the column in parallel with the conductive bars 41 and 42. Is placed. The mounting base 44 to which these three conductive bars 41, 42, 43 are attached is arranged on the right side of the main breaker 2 so that the longitudinal direction of each conductive bar 41, 42, 43 is parallel to the left-right direction. And fixed to the cabinet body 11.

  Each branch breaker 3 is divided into an upper side and a lower side of the neutral conductive bar 43 inside the cabinet body 11. In the example of FIG. 2, eleven branch breakers 3 are arranged on the upper side of the neutral electrode conductive bar 43 in the left-right direction, and the eleven branch breakers 3 are arranged on the lower side of the neutral electrode conductive bar 43. They are arranged in the left-right direction. Each branch breaker 3 includes a primary side terminal (not shown) and a secondary side terminal (not shown). The branch breaker 3 is available for 100V and 200V. The primary side terminal of the branch breaker 3 for 100V is electrically connected to one of the conductive bar 41 of the first voltage electrode and the conductive bar 42 of the second voltage electrode and the conductive bar 43 of the neutral electrode, respectively. Is done. The primary side terminals included in the 200V branch breaker 3 are electrically connected to the conductive bar 41 of the first voltage electrode and the conductive bar 42 of the second voltage electrode, respectively. A corresponding electric circuit (not shown) is electrically connected to the secondary side terminal of each branch breaker 3. The electric circuit connected to the secondary side terminal of each branch breaker 3 includes, for example, a lighting device, an air conditioner, a television receiver, a hot water supply device, a wiring device such as an outlet or a wall switch as a load. Connected as above.

  As shown in FIG. 6, the conductive bar 41 of the first voltage electrode has a plurality of connection terminals 411 that protrude upward and downward at positions corresponding to the plurality of branch breakers 3. The conductive bar 42 of the second voltage electrode has a plurality of connection terminals 421 that protrude upward and downward at positions corresponding to the plurality of branch breakers 3. Each branch breaker 3 has an insertion port 31 into which the conductive bar 41, the connection terminal 411, and the connection terminal 421 are respectively inserted. Three insertion ports 31 are provided in each branch breaker 3 so as to correspond to each of the conductive bar 41 and the connection terminals 411 and 421. The primary side terminals are provided so as to be exposed in two of the three insertion ports 31. In the branch breaker 3 for 100V, the primary side terminals are respectively provided in the insertion ports 31 at both ends in the front-rear direction, and in the branch breaker 3 for 200V, the difference between the insertion port 31 in the middle of the front-rear direction and the rear side. A primary terminal is provided at each of the inlets 31.

  In the distribution board 1 of the present embodiment, as shown in FIG. 6, on the upper side of the conductive bar 43 of the neutral electrode, the neutral electrode, the second voltage electrode, the first voltage electrode from the front side in the front-rear direction (the side opposite to the wall). The conductive bar 43 and the connection terminals 411 and 421 are arranged so as to be arranged in order of one voltage electrode. In addition, below the conductive bar 43 of the neutral electrode, the conductive bar 43 and the connection terminal are arranged in order of the neutral electrode, the first voltage electrode, and the second voltage electrode from the front side in the front-rear direction (the side opposite to the wall). 411 and 421 are arranged.

  The branch breaker 3 for 100 V includes primary side terminals at the front side insertion port 31 and the rear side insertion port 31 among the three insertion ports 31. When the branch breaker 3 for 100V is mounted on the upper side of the conductive bar 43, the primary side terminal of the branch breaker 3 is electrically connected to the conductive bar 41 of the first voltage electrode and the conductive bar 43 of the neutral electrode. The When the branch breaker 3 for 100V is attached to the lower side of the conductive bar 43, the primary terminal of the branch breaker 3 is electrically connected to the conductive bar 42 of the second voltage electrode and the conductive bar 43 of the neutral electrode. Is done. The branch breaker 3 for 200V has primary terminals in the two insertion ports 31 other than the front side, and this branch breaker 3 can be attached to either the upper side or the lower side of the conductive bar 43. The first voltage electrode conductive bar 41 and the second voltage electrode conductive bar 42 are electrically connected.

  The current measuring instrument 5 is configured to individually measure a current (hereinafter referred to as “load current”) flowing in a load (electric circuit) connected to each of the plurality of branch breakers 3. As shown in FIG. 6, the current measuring instrument 5 includes a substrate 51, a plurality of coils 52, a plurality of measurement units (semiconductor devices) 55, and a calculation unit 56.

  The board | substrate 51 is a printed circuit board of the multilayer structure long in the left-right direction. The substrate 51 is provided with a plurality of first holes 53 penetrating in the thickness direction so as to be arranged at regular intervals in the left-right direction (longitudinal direction of the substrate 51). The substrate 51 is provided with a plurality of second holes 54 penetrating in the thickness direction so as to be arranged at regular intervals in the left-right direction. Each of the plurality of second holes 54 is provided on the rear side of the corresponding first hole 53 so as to be aligned with the corresponding first hole 53 in the front-rear direction. The first hole 53 and the second hole 54 are formed in a shape through which any of the connection terminals 411 and 421 can penetrate. The substrate 51 is attached to the mounting base 4 with one of the connection terminals 411 and 421 penetrating through the first hole 53 and the other of the connection terminals 411 and 421 penetrating through the second hole 54. .

  Coils 52 are formed around the plurality of second holes 54 in the substrate 51. Each coil 52 is an air-core coil that does not use a core (coreless), and is a Rogowski coil that generates an output corresponding to a load current passing through the second hole 54 (load current flowing through the connection terminals 411 and 421). is there. In the present embodiment, the hole (second hole 54) in which the coil 52 is formed is a circular hole. However, the hole may be provided so as to penetrate the substrate 51. It may be a U-shaped hole opened to the side edge. In the current measuring instrument 5 of the present embodiment, the coil 52 is formed around the second hole 54, but the coil 52 may be formed around the first hole 53. Moreover, although the current measuring device 5 of the present embodiment includes the Rogowski coil for current measurement, the current may be measured by a method other than the Rogowski coil. For example, the current may be measured using a GMR (Giant Magneto Resistive Effect) sensor or a Hall element.

  The substrate 51 is provided with one coil 52 corresponding to each of the plurality of branch breakers 3, and two adjacent coils 52 are taken as one set, one for each set of coils 52. A measuring unit 55 is provided. The input end of each measurement unit 55 and the output end of the corresponding two coils 52 are electrically connected via a circuit wiring 57 made of a thin film conductor formed on the surface of the substrate 51.

  Although not shown, each measurement unit 55 includes an amplifier circuit, an A / D conversion circuit, an integration circuit, and a signal processing circuit. Each measurement unit 55 alternately acquires analog signals output from the corresponding two coils 52 in a time division manner.

  The amplifier circuit includes an amplifier that amplifies the analog signal output from the coil 52. The A / D conversion circuit is configured to convert an analog signal output from the amplifier circuit into a digital signal. The integration circuit is configured to integrate the digital signal output from the A / D conversion circuit.

  Here, the analog signal output from the coil 52 is a value obtained by differentiating the load current flowing through the connection terminals 411 and 421. For this reason, the integrating circuit integrates the digital signal output from the A / D conversion circuit to generate a digital signal indicating the load current flowing through the connection terminals 411 and 421. In the measurement unit 55 of the present embodiment, an integration circuit is configured by a digital filter.

  The signal processing circuit is configured to generate load current data flowing through the connection terminals 411 and 421 by processing a digital signal output from the integration circuit. The signal processing circuit is configured to output load current data as a current signal to the calculation unit 56.

  Although not shown, the calculation unit 56 includes an A / D conversion circuit and a signal processing circuit. The A / D conversion circuit is configured to convert the voltage signal output from the measurement unit 6 into a digital voltage signal. The signal processing circuit calculates the instantaneous power for each of the plurality of electric paths based on the digital voltage signal output from the A / D conversion circuit and the current signal output from each measuring unit 55, and the instantaneous power Is configured to generate data. The signal processing circuit is configured to output instantaneous power data to the first communication adapter 7 as a power signal.

  The measurement unit 6 is electrically connected to the current measuring instrument 5. The measuring unit 6 has a function of measuring a line voltage from an electric circuit connected to the secondary side of the main breaker 2 and outputting line voltage data to the current measuring instrument 5 as a voltage signal. The measurement unit 6 can be connected to a current transformer for measuring current at measurement points other than the electric circuit connected to the branch breaker 3 (for example, measurement points on the secondary side of the main breaker 2). In this case, the measurement unit 6 is configured to calculate the instantaneous power using the current value measured using the current transformer and the line voltage, and to output the instantaneous power data to the first communication adapter 7. .

  The measurement unit 6 is connected to the secondary terminal of any branch breaker 3 and obtains operating power via the branch breaker 3. The measurement unit 6 is electrically connected to the first communication adapter 7 and the third communication adapter 9, and operates from the built-in power supply circuit (not shown) to the first communication adapter 7 and the third communication adapter 9. It also has a function of supplying necessary power. Note that the measurement unit 6 may be configured such that the operating power is directly supplied from the conductive bars 41, 42, and 43 (that is, the secondary side of the main breaker 2).

  By the way, in the distribution board 1 of this embodiment, as shown in FIG. 2, in addition to the plurality of branch breakers 3, the secondary interconnection breaker 100 is electrically connected to the conductive bars 41, 42, and 43. . The secondary interconnection breaker 100 is a breaker having 3P3E (the number of poles is 3 and the number of elements is 3), and the size in the left-right direction is as large as a plurality (three) of the branch breakers 3. Secondary interconnection breaker 100 is electrically connected to a distributed power source (not shown) that does not allow reverse power flow to the power system. Examples of this type of distributed power source include a fuel cell (not shown), a gas power generation device (not shown), and a power storage device.

  Similar to the branch breaker 3, the secondary interconnection breaker 100 includes a primary side terminal (not shown) and a secondary side terminal 101. Conductive bars 41, 42, 43 are electrically connected to the primary side terminal, and a distributed power source is electrically connected to the secondary side terminal 101. That is, the secondary interconnection breaker 100 is electrically connected between the secondary side of the main breaker 2 and the distributed power supply. For this reason, the secondary interconnection breaker 100 disconnects (disconnects) the distributed power source from the power system, for example, when the power supply from the system power source stops or when an abnormality occurs in the system power source or the distributed power source. To work. In addition, it is arbitrary whether the electricity distribution panel 1 of this embodiment is provided with the secondary interconnection breaker 100. FIG.

  Moreover, the distribution board 1 of this embodiment has a space in which a primary interconnection breaker (not shown) is attached on the left side of the main breaker 2 in the cabinet body 11. In the cabinet main body 11 of this embodiment, as shown in FIG. 2, the support stand 13 is attached to this space. The primary interconnection breaker is attached to the support base 13.

  The primary interconnection breaker is 3P3E (number of poles 3, number of elements 3), and the dimension in the left-right direction is a size corresponding to a plurality of (three) branch breakers 3. The primary interconnection breaker is electrically connected to a distributed power source (not shown) that allows reverse power flow to the power system. Examples of this type of distributed power source include a solar power generation device.

  The primary interconnection breaker includes a primary side terminal (not shown) and a secondary side terminal (not shown). A primary side terminal 21 of the main breaker 2 is electrically connected to the primary side terminal. A distributed power supply is electrically connected to the secondary terminal. That is, the primary interconnection breaker is electrically connected between the primary side of the main breaker 2 and the distributed power source. For this reason, the primary grid breaker should disconnect (disconnect) the distributed power source from the power system when, for example, the power supply from the system power source is stopped or when an abnormality occurs in the system power source or the distributed power source. Operate. In addition, it is arbitrary whether the electricity distribution panel 1 of this embodiment is provided with a primary interconnection breaker.

  Next, the 1st communication adapter 7, the 2nd communication adapter 8, and the 3rd communication adapter 9 which are the internal devices for the distribution boards which communicate with the apparatus outside the distribution board cabinet 10 are demonstrated.

  The first communication adapter 7 has a function of communicating with a controller (not shown) that manages the supply and demand of energy at a consumer (a detached house in the present embodiment). The controller is, for example, a controller for HEMS (Home Energy Management System), and is configured to monitor or control a device (not shown) corresponding to HEMS. The device corresponding to HEMS should just be a management object required in order to grasp | ascertain the supply and demand of energy. Examples of such devices include appliances that use energy such as lighting equipment and air conditioners, and electric vehicles such as lighting devices, solar power generation devices, devices that create energy such as fuel cells, power storage devices, and electric vehicles. Including devices that store energy. In addition, the apparatus corresponding to HEMS is not limited to said apparatus. Further, the first communication adapter 7 may have the function of the second external device 400. In this case, the 1st communication adapter 7 which has a controller function manages the supply-and-demand of energy in a consumer, and monitors or controls the apparatus corresponding to HEMS.

  The communication method between the first communication adapter 7 and the controller is, for example, a specific low-power radio station in the 920 MHz band (a radio station that does not require a license), ZigBee (registered trademark), Bluetooth (registered trademark), or other radio wave medium. Wireless communication may be used. In addition, the communication method between the first communication adapter 7 and the controller may be wired communication such as a wired LAN (Local Area Network). In addition, as a communication protocol in communication between the first communication adapter 7 and the controller, for example, a communication protocol such as Ethernet (registered trademark) or ECHONET (registered trademark) Lite may be used.

  The first communication adapter 7 receives instantaneous power measurement data transmitted from the current measuring instrument 5 and the measurement unit 6. Based on the instantaneous power measurement data received from the current measuring instrument 5 and the measurement unit 6, the first communication adapter 7 integrates the amount of instantaneous power over a predetermined time at each measurement location, and the obtained power amount Is sent to the controller. The controller is configured to monitor or control the device using the measurement data of the electric energy received from the first communication adapter 7. For this reason, the controller can monitor or control the load device connected to each electric circuit based on the calculation result of the electric energy for each of the plurality of electric circuits.

  As shown in FIGS. 7A to 7D, the first communication adapter 7 includes a rectangular parallelepiped case 70 made of a synthetic resin molded product.

  In the case 70, a concave portion 71 opened on the upper side and the rear side is provided at a corner portion formed by the upper surface and the rear surface. The bottom surface of the recess 71 is provided with a first connector (not shown) to which a second connector (not shown) provided at the lower part of the second communication adapter 8 is detachably connected. When the lower part of the second communication adapter 8 is fitted into the recess 71 and the first connector of the first communication adapter 7 and the second connector of the second communication adapter 8 are connected, the first communication adapter 7 and the second communication adapter 8 Are electrically and mechanically connected.

  Further, in the case 70, a corner 72 formed by the lower surface and the rear surface is provided with a recessed portion 72 that is open to the lower side and the rear side. The bottom surface of the recess 72 is provided with a first connector 73 to which a second connector 93 (see FIG. 8A) provided on the upper portion of the third communication adapter 9 is detachably connected. When the upper part of the third communication adapter 9 is fitted into the recess 72 and the first connector 73 of the first communication adapter 7 and the second connector 93 of the third communication adapter 9 are connected, the first communication adapter 7 and the third communication adapter are connected. 9 is electrically and mechanically connected.

  7C shows only the first connector 73 to which the second connector 93 of the third communication adapter 9 is connected, and the first connector to which the second connector of the second communication adapter 8 is connected is the first connector. Since it has the same configuration as the connector 73, the illustration is omitted. Moreover, since the 2nd connector with which the 2nd communication adapter 8 is provided has the structure similar to the 2nd connector 93 with which the 3rd communication adapter 9 is provided, illustration is abbreviate | omitted.

  On the left and right side surfaces of the case 70, a horizontal groove 741 opened to the rear side and a vertical groove 742 extending upward from the front side of the horizontal groove 741 are provided at the same position in the vertical direction. On the rear side of the vertical groove 742, a rail-shaped protrusion 75 that protrudes outward in the left-right direction is provided. An inclined surface 751 is provided below the protrusion 75 so as to increase the width of the vertical groove 742 as it approaches the lower side.

  A boss 76 that holds the fixing screw 761 in a rotatable state is provided integrally with the case 70 on the right side surface of the case 70.

  On the front surface of the case 70, a display unit 771 composed of a 7-segment display for displaying the operation state and setting contents, and a plurality of display units (for example, four in this embodiment) for displaying operation using light emitting diodes as a light source, for example. The light emitting display portion 772 is provided. In addition, operation buttons 781 and 782 for performing various operations are provided on the front surface of the case 70.

  On the front side of the lower portion of the case 70, receptacle connectors 791 and 792 are provided with the cable connection direction facing downward. A plug connector (not shown) connected to a cable (not shown) from the measurement unit 6 is detachably connected to the receptacle connector 791. A plug connector (not shown) connected to a cable (not shown) for supplying operating power from the measurement unit 6 to the third communication adapter 9 is detachably connected to the receptacle connector 792. The receptacle connector 792 is for temporarily holding a plug connector of a cable wired from the measurement unit 6 to the third communication adapter 9 when the distribution board 1 does not include the third communication adapter 9. 1 The communication adapter 7 is not electrically connected to the internal circuit. In addition, the first communication adapter 7 of the present embodiment communicates with the controller by a wireless communication method, but may perform wired communication such as a wired LAN (Local Area Network) with the controller. When the first communication adapter 7 performs wired communication with the controller, a connector (not shown) for connecting a communication cable for wired communication to the lower surface of the prismatic protrusion 793 on the left side of the receptacle connector 792. )).

  The second communication adapter 8 has a function of communicating with a power meter (not shown). The power meter is a so-called smart meter that measures the amount of power used by consumers and enables remote meter reading by communicating with a concentrator (not shown) connected to the distribution line. Is configured to do. In addition, the power meter can transmit a measured value (amount of power used), request information, and the like to the second communication adapter 8 by communicating with the second communication adapter 8. The request information is a request for suppressing consumption of power transmitted from a server operated by a power supply company or the like to a consumer. The communication method between the second communication adapter 8 and the power meter may be, for example, wireless communication such as a specific low power wireless station (radio station that does not require a license) in the 920 MHz band, wired LAN, power line carrier communication, etc. Wired communication may be used.

  The second communication adapter 8 is preferably configured to transmit the measured value received from the power meter to the first communication adapter 7. In this case, the controller that communicates with the first communication adapter 7 may be configured to monitor or control the device based on the measurement value. In this configuration, the controller can monitor or control the device based on the measured value transmitted from the power meter.

  As shown in FIGS. 1, 2, and 9, the second communication adapter 8 includes a case 80 made of a synthetic resin molded product. A projecting portion (not shown) that is fitted into the concave portion 71 of the case 70 from the rear side is provided at the lower portion of the case 80. A plug connector (not shown) that is detachably connected to a receptacle connector provided in the recess 71 is provided on the front surface of the protruding portion. When the case 70 is placed on the case 80 so that the protruding portion of the case 80 is fitted into the recess 71 of the case 70, the case 70 side receptacle connector and the case 80 side plug connector are connected to each other. Thereby, the 1st communication adapter 7 and the 2nd communication adapter 8 are connected electrically and mechanically. In the present embodiment, the first communication adapter 7 and the second communication adapter 8 are connected by a board-to-board connection with a part of each of the first communication adapter 7 and the second communication adapter 8 overlapping in the front-rear direction.

  Further, a lateral groove 811 opened to the rear side and a longitudinal groove 812 extending upward from the front side of the lateral groove 811 are provided on the left and right side surfaces of the case 80 at the same position in the vertical direction. On the rear side of the vertical groove 812, a rail-shaped protrusion 82 that protrudes outward in the left-right direction is provided. An inclined surface 821 is provided at the lower portion of the protrusion 82 so as to increase the width of the vertical groove 812 as approaching the lower side.

  The third communication adapter 9 communicates with at least one of a solar power generation device (not shown), a power storage device (not shown), and a power conversion device (not shown) electrically connected to the electric vehicle. It has a function to do. In addition to power conversion for performing unidirectional charging from the distribution board 1 side to the electric vehicle, the power conversion device performs bidirectional power conversion for both charging and discharging of the storage battery of the electric vehicle. The structure used may be sufficient. The third communication adapter 9 has a communication function with at least one of a gas meter (not shown) and a water meter (not shown). A gas meter or a water meter outputs a pulse signal every time the usage amount increases by a certain amount. The third communication adapter 9 receives a pulse signal from a gas meter or a water meter, and converts it into a usage amount of gas or tap water using a predetermined conversion value (conversion rate) of the usage amount per pulse. .

  The communication system between the third communication adapter 9 and the solar power generation device, the power storage device, and the power conversion device is, for example, wired communication such as RS-485. Note that the third communication adapter 9 may be capable of communicating with, for example, a hot water storage type hot water supply device using heat pump technology. The communication method between the third communication adapter 9 and the gas meter or water meter is wired communication. However, the communication method between the third communication adapter 9, the gas meter, and the water meter is not limited to wired communication, and may be wireless communication.

  As shown in FIGS. 8A and 8B, the third communication adapter 9 includes a case 90 made of a synthetic resin molded product. A terminal block 91 having a quick connection structure to which a core wire of an electric wire is connected is provided at a lower portion of the case 90. On the upper part of the case 90, a protruding portion 92 that is fitted into the concave portion 72 of the case 70 from the rear side is provided. A second connector 93 that is detachably connected to a first connector 73 provided in the recess 72 is provided on the front surface of the protruding portion 92. When the case 70 is put on the case 90 so that the protruding portion 92 of the case 90 is fitted into the recess 72 of the case 70, the first connector 73 on the case 70 side and the second connector 93 on the case 90 side are connected to each other. The Thereby, the 1st communication adapter 7 and the 3rd communication adapter 9 are connected electrically and mechanically. In this embodiment, the 1st communication adapter 7 and the 3rd communication adapter 9 are connected by the board-to-board (board to board) connection in the state in which each part overlapped in the front-back direction.

  On the left and right side surfaces of the case 90, a horizontal groove 941 opened to the rear side and a vertical groove 942 extending upward from the front side of the horizontal groove 941 are provided at the same position in the vertical direction. On the rear side of the vertical groove 942, a rail-like protrusion 95 that protrudes outward in the left-right direction is provided. An inclined surface 951 is provided below the protrusion 95 so as to increase the width of the vertical groove 942 as approaching the lower side.

  A receptacle connector 96 is provided on the front surface of the case 90. A plug connector (not shown) connected to a cable (not shown) for supplying operating power from the measurement unit 6 to the third communication adapter 9 is detachably connected to the receptacle connector 96.

  In addition, a plurality of (for example, four in this embodiment) light emitting display portions 97 are attached to the upper portion of the front surface of the case 90 side by side in the horizontal direction. The plurality of light emitting display units 97 are used, for example, to display communication states with corresponding devices using light emitting diodes as light sources. These light emitting display portions 97 are disposed on the right side of the front surface of the case 90 except for the region below the projecting portion 793 and the region below the projecting portion 793. Therefore, when the first communication adapter 7 performs wired communication with the controller, even if the connector to which the communication cable is connected is provided on the lower surface of the protruding portion 793, the communication cable connected to the connector emits light. It becomes difficult to apply to the front side of the display unit 97. Therefore, when visually recognizing the display by the light emitting display unit 97, the communication cable connected to the connector provided in the protruding portion 793 is not easily obstructed, and the display of the light emitting display unit 97 can be easily confirmed. In addition, on the lower left of the front surface of the case 90, for example, a light-emitting display unit 98 for energization display is provided.

  In the present embodiment, the internal device for the distribution board that communicates with devices outside the distribution board 1 is the three communication adapters of the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9. Although it is configured, it is sufficient that at least the first communication adapter 7 is provided. It is optional whether the second communication adapter 8 and the third communication adapter 9 are provided as an internal unit for a distribution board having a communication function with the outside, and may be used by connecting to the first communication adapter 7 as necessary. . Moreover, although the 1st communication adapter 7, the 2nd communication adapter 8, and the 3rd communication adapter 9 are formed in the different body, the function of the 2nd communication adapter 8 or the 3rd communication adapter 9 is added to the 1st communication adapter 7. You may give it.

  The first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 as described above are attached to the cabinet body 11 using an attachment member 200 as shown in FIGS. 1, 5, and 9.

  The mounting member 200 is made of a synthetic resin molded product, and includes a fixing portion 201 fixed to the cabinet body 11, and mounting portions 204 to which the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 are respectively attached. 205, 206.

  The fixing portion 201 is formed to have a rectangular plate shape elongated in the vertical direction when the attachment member 200 is attached to the cabinet body 11 when viewed from the front. The fixing portion 201 is provided with through holes 210 for passing the screws 220 at two locations, upper and lower. The fixing portion 201 (that is, the attachment member 200) is fixed to the cabinet body 11 by screwing the screw 220 passed through the through hole 210 into the screw portion hole provided in the bottom wall of the cabinet body 11. . Further, the fixed portion 201 is provided with a mountain-shaped protruding portion 211 that protrudes forward from the central portion in the left-right direction.

  From the left and right side edges (left and right long side portions) of the fixed portion 201, walls 202 are provided that protrude forward. Each wall 202 is formed in a trapezoidal shape such that the rear side and the front side are parallel to each other, and the length of the front side is longer than that of the rear side. Here, a space between the left and right walls 202 and the protruding portion 211 is a wiring storage space 212. Note that a wiring may be wound around the protruding portion 211. In this case, the wiring can be easily stored in the storage space 212. Moreover, the protrusion part 211 may be provided in several places as shown in FIG.1 and FIG.5, and may be provided in one place.

  From the leading edge of each wall 202, a flange 203 is provided that protrudes outward in the left-right direction (opposite the opposite wall 202). In each of the left and right flange portions 203, an attachment portion 204 for attaching the first communication adapter 7, an attachment portion 205 for attaching the second communication adapter 8, and an attachment portion 206 for attaching the third communication adapter 9. And are provided.

  The attachment portion 204 is formed with a groove 2041 into which a protrusion 75 provided on the side surface of the first communication adapter 7 is inserted from above.

  The attachment portion 205 is formed with a groove 2051 into which the protrusion 82 provided on the side surface of the second communication adapter 8 is inserted from above.

  The mounting portion 206 is formed with a groove 2061 into which a protrusion 95 provided on the side surface of the third communication adapter 9 is inserted from above.

  Further, the right flange 203 is provided with a protrusion 207 so as to protrude outward from the outer edge of the flange 203. The protruding portion 207 is provided at a position corresponding to the boss 76 of the first communication adapter 7, and the protruding portion 207 is provided with a screw portion 208 to which a fixing screw 761 held by the boss 76 is screwed. .

  Here, a method of attaching the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 to the attachment member 200 will be described.

  First, by fitting the lower part of the second communication adapter 8 into the recess 71 of the first communication adapter 7 from the rear side and connecting the connectors of the first communication adapter 7 and the second communication adapter 8 together, the second communication adapter 8 is It is attached to the first communication adapter 7. In addition, by fitting the upper part of the third communication adapter 9 into the recess 72 of the first communication adapter 7 from the rear side and connecting the connectors of the first communication adapter 7 and the third communication adapter 9 together, the third communication adapter 9 is It is attached to the first communication adapter 7.

  In this way, the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 are attached while the second communication adapter 8 and the third communication adapter 9 are attached to the first communication adapter 7. A method of attaching to the member 200 will be described.

  The first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 that are integrally connected are brought close to the flange portion 203 of the attachment member 200 from the front side, the attachment portion 204 is placed in the lateral groove 741, and the attachment portion 205 is attached. The attaching portions 206 are inserted into the horizontal grooves 941 in the horizontal grooves 811, respectively. Here, in a state where the back surfaces of the cases 70, 80, 90 are moved to a position where they contact the front surface of the flange portion 203, the mounting portions 204, 205, 206 correspond to the corresponding first communication adapter 7, second communication adapter. 8. The third communication adapter 9 is not held, and this position is the first position. In this first position, the protrusion 75 has moved to a position where it can be inserted into the groove 2041, the protrusion 82 has moved to a position where it can be inserted into the groove 2051, and the protrusion 95 has moved to a position where it can be inserted into the groove 2061. . Then, when the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 that are integrally connected are slid downward from the first position, the protrusion 75 enters the groove 2041 of the attachment portion 204. Is inserted. Further, the protrusion 82 is inserted into the groove 2051 of the attachment portion 205, and the protrusion 95 is inserted into the groove 2061 of the attachment portion 206. As a result, the attachment portions 204, 205, and 206 hold the corresponding first communication adapter 7, second communication adapter 8, and third communication adapter 9, and this position is referred to as a second position. Here, an inclined surface 751 is formed at the lower corner of the projection 75, an inclined surface 821 is formed at the lower corner of the projection 82, and an inclined surface 951 is formed at the lower corner of the projection 95. ing. Therefore, when the protrusion 75 is inserted into the groove 2041 from the upper side, the inclined surface 751 hits the end surface of the groove 2041 so that the back surface of the case 70 is pressed against the flange portion 203 side. It becomes difficult to make a gap. Similarly, when the projection 82 is inserted into the groove 2051 from the upper side, the inclined surface 821 hits the end surface of the groove 2051 so that the back surface of the case 80 is pressed against the flange portion 203 side. It becomes difficult to create a gap between them. Further, when the protrusion 95 is inserted into the groove 2061 from above, the inclined surface 951 hits the end surface of the groove 2061, so that the back surface of the case 90 is pressed against the flange portion 203 side, and between the case 90 and the flange portion 203. It becomes difficult to make a gap. Therefore, when the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 are attached to the attachment member 200, it is difficult to form a gap between the cases 70, 80, 90 and the flange portion 203. The rattling of the cases 70, 80, 90 is reduced.

  When the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 that are integrally connected are slid from the first position to the second position, the fixing held by the boss 76 The screw 761 moves to a position where it can be screwed into the screw portion 208 of the protruding portion 207. In this state, when the fixing screw 761 is screwed into the screw portion 208, sliding movement of the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 that are integrally connected is restricted. Therefore, the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9 are held in a state where they are attached to the attachment member 200.

  By the way, when the protrusion part 207 is not provided to the position where the front-end | tip of the fixing screw 761 hits in the state where the 1st communication adapter 7 exists in the 1st position, the 1st communication adapter 7 is in the middle of moving to the 2nd position. There is a possibility that the tip of the fixing screw 761 is caught on the edge of the protrusion 207. On the other hand, in the present embodiment, when the first communication adapter 7 slides between the first position and the second position, the fixing screw 761 held by the boss 76 moves over the entire range. A projecting portion 207 is provided across. Therefore, when the first communication adapter 7 is slid from the first position to the second position, the tip of the fixing screw 761 is not easily caught by the edge of the protruding portion 207, and the first communication adapter 7 is moved to the second position. Can slide smoothly.

  As described above, the attachment member 200 of this embodiment includes the fixed portion 201 and the attachment portions 204, 205, and 206. The fixing part 201 is fixed to the inner wall of the box-shaped distribution board cabinet 10. In the mounting portions 204, 205, and 206, a distribution board internal unit that is housed in the distribution board cabinet 10 and communicates with a device outside the distribution board cabinet 10 (in this embodiment, for example, the first communication). An adapter 7, a second communication adapter 8, and a third communication adapter 9) are attached. The mounting portions 204, 205, and 206 are configured such that the distribution panel inner unit is mounted in a state where a space is provided on the rear side of the distribution panel inner unit. By using such a mounting member 200, a space for the distribution board internal unit that communicates with devices outside the distribution board cabinet 10 is provided on the rear side of the distribution board internal unit. It can be attached to the distribution board cabinet 10 in a state. Therefore, it is possible to easily release the heat generated by the distribution board internal unit. The mounting member 200 according to the present embodiment is provided with three distribution board internal units (first communication adapter 7, second communication adapter 8, and third communication adapter 9). It is only necessary that the distribution board internal unit is attached to the attachment member 200.

  In the attachment member 200 of the present embodiment, the attachment member 200 includes walls 202 that protrude in the same direction from both sides of the fixed portion 201 formed in a rectangular plate shape, and the attachment portions 204, 205, 206 may be provided. And the space between each wall 202 is good also as a storage space of the wiring connected to the internal unit for distribution boards attached to the attaching parts 204,205,206. As described above, since the space provided for releasing the heat generated in the internal device for the distribution board is also used as the storage space for the wiring, the distribution cabinet can be reduced in size as a whole.

  Further, the distribution board cabinet 10 of the present embodiment includes a box-shaped cabinet body 11 having an open front surface and a cabinet body 11 in a state in which a part of the distribution board internal unit is exposed from the through holes 1621 and 1622. Provided with a lid (inner lid 16) that covers the opening 14 on the front surface. The mounting portions 204, 205, 206 are configured such that the distribution board inner device is attached to the mounting portions 204, 205, 206 in a state where the front surface of the distribution board inner device is close to the rear surface of the lid. The Since the front surface of the internal device for the distribution board attached to the attachment portions 204, 205, 206 is disposed close to the rear surface of the lid, the portion of the internal device for the distribution board exposed from the through holes 1621, 1622 of the lid In this embodiment, the visibility and operability of the display unit 771 and the operation button 781 are improved.

  In the mounting member 200 of the present embodiment, the mounting portions 204, 205, and 206 are internal parts for a distribution board (in this embodiment, for example, the first communication adapter 7, the second communication adapter 8, and the third communication adapter 9). Some may be retained. A position where a part of the inner device for the distribution board is not held by the mounting portions 204, 205, 206 is referred to as a first position. A position at which a part of the inner device for the distribution board is held by the mounting portions 204, 205, and 206 is referred to as a second position. Then, the mounting portions 204, 205, and 206 may be configured such that the distribution panel inner unit is mounted by sliding the distribution panel inner unit from the first position to the second position. As a result, the distribution board inner device is attached to the mounting member 200 by sliding the distribution board inner device from the first position to the second position. The board internal unit can be attached to the mounting member 200.

  In addition, in the mounting member 200 of the present embodiment, a restricting portion that restricts the sliding movement of the distribution board inner device in a state in which the distribution board inner device is slid to the second position (in the present embodiment, the first 1 may be provided with a screw portion 208) into which a fixing screw 761 held by the communication adapter 7 is screwed. By restricting the sliding movement of the distribution board inner unit by the restriction unit, the state where the distribution board inner unit is attached to the attachment member 200 can be maintained.

Moreover, the internal device for distribution boards of this embodiment is an internal device for distribution boards provided with the communication function attached to the cabinet 10 for distribution boards using the attachment member 200 of this embodiment. An internal unit and a second internal unit are provided. The first inner unit (first communication adapter 7) is attached to the attachment member 200. The second internal unit (the second communication adapter 8 and the third communication adapter 9) is attached to and detached from the first connector (for example, the first connector 73) provided at the rear portion of the first internal unit (the first communication adapter 7). It has the 2nd connector (for example, 2nd connector 93) connected freely. The second internal unit is attached to the attachment member 200 together with the first internal unit in a state where the second internal unit is attached to the first internal unit by connecting the second connector to the first connector. By attaching the first internal unit to the attachment member 200, the second internal unit attached to the first internal unit can be attached to the attachment member 200 together with the first internal unit. Since the internal device for distribution boards is attached to the cabinet 10 for distribution boards using the attachment member 200 of this embodiment, the heat generated by the internal device for distribution boards can be easily released. In addition, in this embodiment, it is 2 units | sets with respect to a 1st internal unit. Moreover, the distribution board of this embodiment is the attachment member 200 of this embodiment, and the internal device for distribution boards attached to the attachment member 200 ( A first communication adapter 7, a second communication adapter 8, a third communication adapter 9) and a distribution board cabinet 10 are provided. This cabinet 10 for distribution boards accommodates the internal device for distribution boards attached to the attachment member 200. FIG. Since the internal device for distribution boards is attached to the cabinet 10 for distribution boards using the attachment member 200 of this embodiment, the heat generated by the internal device for distribution boards can be easily released.

  In addition, in the distribution board 1 of this embodiment, the 3rd communication adapter 9 is equipped with both the communication function with a solar power generation device, an electrical storage apparatus, and a power converter device, and a communication function with a gas meter and a water meter. However, you may be comprised with two adapters which have each communication function separately.

1 Distribution board 7 1st communication adapter (distribution panel internal unit, first internal unit)
8 Second communication adapter (distribution panel internal unit, second internal unit)
9 Third communication adapter (inner panel for distribution board, second inner unit)
10 Cabinet for distribution board 11 Cabinet body 14 Opening 16 Inner lid (lid)
70, 80, 90 Case 73 First connector 75, 82, 95 Protrusion 76 Boss 93 Second connector 162, 163, 164, 165 Cover plate (lid)
200 mounting member 201 fixing portion 202 wall 203 flange portion 204, 205, 206 mounting portion 207 projecting portion 208 screw portion (regulating portion)
741,811,941 Horizontal groove 742,812,942 Vertical groove 761 Fixing screw 1621,1622 Through-hole 2041,2051,2052 Groove

Claims (7)

A fixed part fixed to the inner wall of a box-shaped distribution board cabinet;
A mounting portion to which a distribution panel inner unit is mounted, which is housed in the distribution panel cabinet and communicates with devices outside the distribution panel cabinet;
A projecting portion projecting in the same direction from both sides of the fixed part,
The mounting portion is provided on the distal end side of each protruding portion,
The mounting portion is provided with a space between the projecting portions on the rear side of the distribution board inner unit, and the distribution panel with the rear surface of the distribution panel inner unit facing the space. It is configured so that the internal unit for the panel can be attached ,
A mounting member for a distribution board inner device, wherein the space between the protruding portions serves as a storage space for wiring connected to the distribution board inner device attached to the mounting portion. . The protruding portions that protrude from both sides of the fixed part are walls that protrude in the same direction from both sides of the fixed part formed in a rectangular plate shape, respectively.
Mounting member distribution board for the device according to claim 1, wherein the mounting portion on the distal end side of each of the walls are al provided.   A box-shaped cabinet main body having an open front surface, and the distribution board cabinet having a lid that covers an opening on the front surface of the cabinet main body in a state in which a part of the internal device for the distribution panel is exposed from a through hole. The mounting portion is configured such that the distribution panel inner device is attached to the mounting portion in a state where the front surface of the distribution panel inner device is brought close to the rear surface of the lid. The attachment member of the internal unit for distribution boards in any one of Claim 1 or 2. The mounting part holds a part of the inner device for the distribution board,
From a first position where a part of the distribution board inner unit is not held by the mounting part to a second position where a part of the distribution panel inner unit is held by the mounting part The said attaching part was comprised so that the said inner device for distribution boards might be attached by sliding the said inner device for distribution boards, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. A mounting member for an internal device for a distribution board.   5. The component according to claim 4, further comprising a restricting portion that restricts sliding movement of the distribution board inner device in a state in which the distribution board inner device is slid to the second position. Mounting member for internal unit for electrical panel. An internal device for a distribution board having a communication function attached to the cabinet for distribution board using the attachment member according to any one of claims 1 to 5,
A first inner device attached to the attachment member;
A second connector that is detachably connected to a first connector provided at a rear portion of the first inner unit, and the first inner unit is connected to the first connector by connecting the second connector to the first connector; A distribution board internal unit comprising: a second internal unit attached to the mounting member together with the first internal unit in an attached state.   A portion for housing the mounting member according to any one of claims 1 to 5, the inner device for the distribution board attached to the attachment member, and the inner device for the distribution board attached to the attachment member. A distribution board characterized by comprising a cabinet for electrical boards.

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