JP2018160992A - Distribution board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distribution board that can effectively utilize a space that had become a dead space.SOLUTION: A distribution board including power distribution devices 2 such as a branch breaker and a measurement unit and a plurality of bus bar 3 capable of connecting the power distribution devices includes a bar terminal block 32 for supporting the bus bar 3 in a state where the left and right sides of the bus bar 3 are opened.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a distribution board.

  As described in Patent Document 1, the mounting base provided in the distribution board is provided with a device mounting space in which a branch breaker can be arranged. It is also known to arrange power distribution equipment such as a measurement unit and a power supply unit in this equipment mounting space.

JP, 2006-208710, A

  By the way, if power distribution equipment other than the branch breaker is arranged in a space where the branch breaker can be attached, the space for attaching the branch breaker becomes narrow. For this reason, the problem is that the number of connectable circuits is reduced.

  The inventor of the present case tried to solve the problem by diligently examining this point. The subject of this invention is providing the distribution board which can utilize effectively the space used as the dead space conventionally.

  In order to solve the above problems, a distribution board including a distribution device such as a branch breaker and a measurement unit and a plurality of busbars to which the distribution device can be connected, having a connection portion at a longitudinal end portion of the busbar A distribution board with a bus bar terminal to which power distribution equipment can be connected.

  It is preferable that the bus bar terminal portion has a stepped shape in the width direction. Further, it is preferable that the bus bar is held by a stepped bus bar terminal block.

  It is preferable to include a mounting base to which the power distribution device connected to the bus bar is attached, and a part or all of the power distribution device connected to the longitudinal end portion of the bus bar is located on the back surface of the mounting bar.

  It is preferable that the power distribution device connected to the longitudinal end portion of the bus bar has a duct portion through which lead wires of other power distribution devices can pass.

  According to the present invention, it is possible to provide a distribution board capable of effectively utilizing a space that has conventionally been a dead space.

It is a perspective view of the electricity distribution panel in the state where the door opened. It is a disassembled perspective view of a distribution board. It is a perspective view of an internal unit. It is a front view of an inner machine. It is a bottom view of an internal unit. It is a front view of the internal unit which showed the apparatus installation space with the oblique line. It is a disassembled perspective view of an internal unit. It is the perspective view which combined the 1st unit and the bar terminal block. It is the perspective view which combined the 1st unit and the bar terminal block seen from the direction different from FIG. It is a figure showing the wiring state around the 1st unit. It is a perspective view of the 2nd unit. It is the perspective view of the 2nd unit seen from the direction different from FIG. It is a perspective view of an internal unit and a 2nd unit. It is a figure which shows the state in the middle of moving to the location which fixes a 2nd unit to an internal unit. It is a figure shown about the communication and the operation state of each unit.

  The form for implementing this invention is shown below. The distribution board 1 includes a distribution device 2 such as a branch breaker 22 and a measurement unit, and a plurality of bus bars 3 to which the distribution device 2 can be connected. Further, a bar terminal block 32 that supports the bus bar 3 in a state where the left and right sides of the bus bar 3 are opened is provided. Therefore, it is possible to effectively utilize a space that has been a dead space in the past.

  Furthermore, the distribution board 1 of this embodiment is provided with the mounting base 11 which fixes distribution devices 2, such as the branch breaker 22 and a measurement unit. In addition, the distribution board 1 includes the power distribution device 2 provided with the communication line 62 inside and outside the housing 12 and the wiring connection portion 13 to which the wiring of the other power distribution device 2 is connected as a protruding portion that protrudes at least up, down, left and right. Have. And this wiring connection part 13 is located outside the apparatus installation space of the power distribution apparatus 2 attached to the mounting base 11. FIG. For this reason, it is possible to effectively utilize a space that has been a dead space in the past. In the present embodiment, a protruding portion that protrudes in the vertical and horizontal directions will be described as the wiring connection portion 13. However, the protruding portion may be a terminal block, or may be combined with a storage portion that stores a mechanism portion or the like of the power distribution device 2. good.

  Here, the overall structure of the distribution board 1 will be described. As understood from FIGS. 1 and 2, the distribution board 1 includes a body member 14 located on the back side. A mounting base 11 to which the power distribution device 2 is attached is fixed inside the body member 14. The body member 14 is provided with a cover member 15 that is attached so as to cover a part of the handle or the like of the power distribution device 2 while being exposed. The cover member 15 is provided with a door 16 that can be opened and closed, so that the entire power distribution device 2 is not exposed.

  The power distribution device 2 such as the main breaker 21, the branch breaker 22, and the measurement unit is fixed to the mount 11, whereby the internal unit 4 as shown in FIGS. 3 to 5 is configured. The main breaker 21 connected to the commercial power source located outside the distribution board 1 is connected to the bus bar 3 via the branch lead bar 71 as understood from FIG. The bus bar 3 is connected to a power distribution device 2 such as a branch breaker 22 or a measurement unit, and supplies power to each. The branch breaker 22 and the measurement unit are plugged into the stacked bus bar 3.

  In order to support the bus bar 3 in a stacked state, a bar terminal block 32 is provided. The bar terminal block 32 is disposed so as to be in contact with a portion of the bus bar 3 that is located on the opposite side in the longitudinal direction from the portion connected to the main breaker 21 side. Since the bar terminal block 32 is configured to support the bus bar 3 with the left and right sides of the bus bar 3 open, the connection part 63 of the power distribution device 2 can be connected from the longitudinal end of the bus bar 3. It becomes.

  In the present embodiment, the end of the bus bar 3 to which the distribution device 2 is plugged in is connected to the distribution device 2 having the connection portion 63 connected from the end in the longitudinal direction and the bus bar to which the wiring of the distribution device 2 can be connected. A terminal portion 31 is provided. Since the wiring connection portion 13 is disposed above or below the bus bar terminal portion 31, the space above or below the bus bar terminal portion 31 outside the device mounting space can be used effectively. The bus bar terminal portion 31 may be such that the connecting portion 63 connected from the end in the longitudinal direction can be connected to the bus bar terminal portion 31 with a plug terminal. Note that the device mounting space in the present embodiment is a hatched portion in FIG. 6, and specifically, is a pluggable connection area to the bus bar 3 of the power distribution device 2 such as the branch breaker 22 or the measurement unit.

  The bus bar terminal portions 31 are stacked so as to be stepped along the width direction of the bus bar 2, and the bus bar terminal block 32 is similarly formed to be stepped. For this reason, it is possible to maintain the insulation distance between the connection screws connected to the bus bar terminal portion 31 of the bus bar 3. Moreover, it forms so that the connection with the connection screw of the power distribution apparatus 2 and the bus-bar 2 may be performed easily from the upper direction. Since the bus bar terminal portion 31 formed at the end in the longitudinal direction of the bus bar 3 is held on the bus bar terminal block 32, it is possible to prevent the bus bar 3 from being deformed when screw-fixed.

  As shown in FIG. 7, the mounting base 11 is provided with a slit 83 that guides the branch breaker 22 and the like in a connectable area to the bus bar 3. Moreover, the hole part 84 holding the stopper 41 which prevents the branch breaker 22 from falling off is provided. Note that the attachment hole 85 for fixing the inner unit 4 to the body member 14 is formed outside the area where the bus bar 3 can be connected.

  The L1 pole / L2 pole bars of the bus bar 3 are formed in a comb shape. A branch breaker 22 and a measurement unit are connected to the tip of the comb portion. The comb portion is inserted into a current sensor unit 91 on which a plurality of current sensors such as CT are mounted. In the present embodiment, the bus bar 3 is integrally formed with a comb shape. However, to form a comb shape, the branch bar connected to the branch breaker 22 is screwed to the bus bar 3. It may be a thing.

  In the present embodiment, a measurement unit is connected to the bus bar 3. This measuring unit is formed of a first unit 24 and a second unit 25 each of which is a power distribution device 2. The first unit 24 has a structure as can be understood from FIGS. 8 and 9. As shown in FIG. 4, the first unit 24 is connected in parallel with the branch breaker 22, and is connected to a communication unit that performs external communication and a lead wire 61 of the current sensor unit 91. The first unit 24 includes wiring connection portions 13a, 13c, and 13d to which communication lines 62 connected to other power distribution devices 2 inside and outside the housing 12 are connected. The second unit 25 also includes wiring connection portions 13b and 13e to which communication lines 62 connected to other power distribution devices 2 inside and outside the housing 12 are connected.

  As shown in FIGS. 10 and 15, the lead wire 61 of the current sensor unit 91 passes through the rear surface side of the wiring connection portion 13 a and is routed to the rear surface side of the first unit 24, and is positioned on the rear surface of the first unit 24. Connected to the wiring connection portion 13d to be connected to the wiring connection portion 13e of the second unit 25. Specifically, the wiring passes between the support portion 64 provided between the mount 11 and the wiring connection portion 13a and the wiring connection portion 13a. The first unit 24 is connected to the second unit 25, and the measurement information of the second unit 25 is transmitted to the first unit 24 via the wiring connection parts 13 b and 13 c, and is transmitted to the wiring connection part 13 a of the first unit 24. The data is transmitted to an external device via the connected communication line 62.

  Since the wiring connection portion 13a of the first unit 24 is formed with a space from the surface of the mounting base 11, it can be formed by the mounting base 11 and the wiring connection portion 13a as a wiring path and a wiring presser. Specifically, a support portion 64 is provided between the mounting base 11 and the wiring connection portion 13a, and a wiring space is provided between the support portion 64 and the wiring connection portion 13a to prevent the wiring from being pinched. The wiring route can be shifted to the wiring connection portion 13a side, and it becomes easy to secure an appropriate wiring route.

  As shown in FIGS. 8 and 9, the first unit 24 includes a plug terminal storage portion 27 that stores a plug terminal 26 that can be connected to the bus bar 3, and a wiring storage portion 28 that can store wiring. The plug terminal storage portion 27 and the wiring storage portion 28 are arranged in parallel along the bus bar 3. For this reason, the space adjacent to the plug terminal accommodating portion 27 can be used as a wiring accommodating portion, and the lead wire 61 and the like can be hidden or used as a passage. In the present embodiment, in addition to the wiring, a part of the bar terminal block 32 is formed so as to be accommodated.

  The first unit 24 includes a power distribution device 2 in which a fixing portion 29 that prevents the first unit 24 from falling off the mounting base 11 is formed outside the device mounting space of the mounting base 11. For this reason, even the power distribution device 2 extending in the vertical direction from the mount 11 can be fixed.

  The second unit 25 of the present embodiment has a structure as shown in FIGS. 11 and 12, and performs current measurement, power calculation, and the like of the main breaker 21 and the solar panel. Moreover, it can be made to act as a unit for adding other functions. Each of the first unit 24 and the second unit 25 has a structure for obtaining power from the bus bar 3. The second unit 25 is slid from the state shown in FIG. 13 to the state shown in FIG. 13 and further slid to the state shown in FIG.

  The second unit 25 is configured such that a part thereof is located on the back surface of the mounting base 11. In addition, you may comprise so that the 2nd unit 25 whole may be located in the back surface of the mounting base 11, not a part. By adopting these configurations, the branch breaker 22 can be mounted on the mounting base 11 without occupying the mounting space.

  In addition, the second unit 25 has a duct portion 65 through which the lead wire 61 of another power distribution device 2 can pass and a connection portion 63 connected to the bus bar terminal portion 31 at the longitudinal end of the bus bar 3. The device 2 is configured to be provided. For this reason, wiring such as the lead wire 61 can be hidden in the duct portion 65, and the appearance can be improved.

  The 2nd unit 25 fixed to the back is provided with wiring connection parts 13b and 13e to which communication line 62 of power distribution equipment 2 inside and outside case 12 is connected. The wiring connection portion 13 b is configured to protrude outside the device mounting space above the mounting base 11. Therefore, the communication line 62 can be easily connected to the second unit 25 without using the device mounting space of the branch breaker 22. Further, the second unit 25 is provided with a hooking portion 67 capable of hooking a wiring connected to the wiring connecting portion 13b. The hook portion 67 of this embodiment is configured by providing a notch at a position adjacent to the wiring connection portion 13b.

  FIG. 15 shows a signal input / output method of the first unit 24, the second unit 25, and the current sensor unit 91. The first unit 24 steps down the voltage from the connection portion of the plug terminal 27 to the bus bar 3 by the step-down circuits 24b and 24c, generates a measurement voltage for power calculation, and is wired to the microcomputer 91a of the current sensor unit 91 It transmits via the parts 13d and 13f.

  The second unit 25 supplies the power of the first unit 24 and the second unit 25 from the connection part 63 to the bus bar connection part 31 at the longitudinal end of the bus bar 3 from the conversion part 25d, and A driving voltage for the microcomputer 91a is supplied through the wiring connection portions 13e and 13f. The step-down circuits 25a and 25b supply the measurement voltage for power calculation of the main circuit breaker 21 and expansion circuits such as sunlight and storage batteries to the microcomputer 25c, and the main circuit breaker 21 and expansion circuits such as sunlight and storage batteries. The power is calculated from the current measured by the current sensor.

  The current sensor unit 91 performs power calculation of the branch breaker 22 in the measurement voltage and current sensor of the first unit 24, and transmits the calculation result to the second unit 25 via the wiring connection portions 13e and 13f. The second unit 25 transmits the power calculation results of the main breaker 21 and the branch breaker to the microcomputer 24a of the first unit 24 via the wiring connection portions 13b and 13c. Then, the microcomputer 24a transmits the data via the communication line 62 to the internal and external power distribution devices via the wiring connection portion 13a.

  As mentioned above, although it demonstrated centering on one embodiment, this invention is not limited to the said embodiment, It can be set as various aspects. For example, the power distribution device connected to the longitudinal end portion of the bus bar need not be the second unit, and other power distribution devices can be connected to the longitudinal end portion of the bus bar.

1 Distribution board 2 Power distribution equipment 3 Bus bar 11 Mounting base 32 Bar terminal block 61 Lead wire 63 Connection section 65 Duct section

Claims (5)

  A distribution board with a plurality of busbars that can be connected to distribution devices such as branch breakers and measurement units, and a busbar that can be connected to a distribution device that has a connection at the longitudinal end of the busbar Distribution board with bar terminal.   The distribution board according to claim 1, wherein the bus bar terminal portion is stepped in the width direction.   The distribution board according to claim 2, wherein the bus bar is held by a stepped bus bar terminal block.   The power distribution device according to claim 1, further comprising: a mounting base to which a power distribution device connected to the bus bar is attached, wherein a part or all of the power distribution device connected to a longitudinal end portion of the bus bar is located on a back surface of the mounting base. Board.   The distribution board according to claim 1 or 2, wherein the power distribution device connected to the longitudinal end of the bus bar includes a duct portion through which a lead wire of another power distribution device can pass.

Images