JP2018018685A - Plug-in terminal block and distribution board with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plug-in terminal block capable of reducing an occupancy space in a housing by extracted wiring when a new distribution board or the like is added and a distribution board having the same.SOLUTION: A plug-in terminal block 1 includes: a plug terminal connected to a bus bar provided in a distribution board; and a wire connection terminal 4 to which electric wire is connected. The wire connection terminal 4 is capable of pulling the electric wire in a direction perpendicular to the bus bar. Further, it is preferable that the wire connection terminal 4 is provided at an end portion on the opposite side of the plug terminal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a plug-in terminal block and a distribution board provided with the plug-in terminal block.

  As shown in FIG. 6, the main breaker 11 provided in the distribution board 10 is connected to three bus bars 12 that are stacked in the depth direction (front-rear direction) of the paper, and sandwich the bus bars 3 therebetween. A plurality of branch breakers 13 are connected to both sides. Here, when it is necessary to newly add a distribution board, a branch breaker or the like, a feed terminal 20 is provided on the side of the bus bar 12 as shown in FIG. It is assumed that the wiring is performed on the same. However, when such a feed terminal 20 is provided, in addition to the installation space for the feed terminal 20 itself, a wiring space for the electric wire 14 drawn from the feed terminal 20 is also required.

  Therefore, when adding a distribution board, etc., part of the branch breaker is removed, and a plug-in type terminal block with a plug terminal at the tip and a wire connection terminal for drawing out the electric wire to the load side (patented) A method can be considered in which the literature 1) is installed to eliminate the installation space for the feed terminal. However, when the terminal block described in Patent Document 1 is used, it is necessary to draw out the electric wires from the side of the plug-in terminal block main body. Similarly, it has been a problem that the wiring space occupies the inside of the housing.

JP 11-215620 A

  An object of the present invention is to solve the above-described conventional problems, and to newly increase a distribution board or the like, a plug-in terminal block and a plug-in that can reduce the occupied space in the housing by the drawn-out wiring It is to provide a distribution board with a terminal block.

  The plug-in terminal block of the present invention made to solve the above problems is a plug-in provided with a plug terminal connected to a bus bar provided in a distribution board and a wire connection terminal to which an electric wire is connected. In the terminal block, the electric wire connection terminal is characterized in that the electric wire can be pulled out in a direction perpendicular to the bus bar.

  According to a second aspect of the present invention, in the plug-in terminal block according to the first aspect, the wire connection terminal is provided at an end portion on the opposite side to the plug terminal.

  A third aspect of the present invention is the plug-in terminal block according to the first or second aspect, wherein a plurality of the electric wire connection terminals are provided, and the electric wire connection terminals are arranged in parallel to the longitudinal direction of the bus bar. It is what.

  The invention according to claim 4 is the plug-in terminal block according to any one of claims 1 to 3, wherein the left-right width of the plug-in terminal block main body is an integer of the left-right width of the branch breaker provided in the distribution board It is characterized by being doubled.

  According to a fifth aspect of the present invention, a distribution board includes the plug-in terminal block according to any one of the first to fourth aspects.

  The plug-in terminal block according to the present invention includes a plug terminal and an electric wire connection terminal, and the electric wire connection terminal can draw out the electric wire in a direction perpendicular to the bus bar. As a result, it is not necessary to secure the installation space for the feed terminal as in the conventional case, and further, the electric wire can be drawn out in a direction perpendicular to the bus bar, so that the conventional electric wire is parallel to the bus bar and the plug-in terminal. Wiring space generated by pulling out from the side of the base body is also unnecessary. Therefore, when newly adding a distribution board or the like, it is possible to reduce the occupied space in the housing by the drawn wires.

It is a perspective view which shows the plug-in terminal block of this invention. It is the perspective view which looked at the plug-in terminal block of the present invention from a different angle. It is a front view which shows the existing distribution board and the additional distribution board. It is a figure which shows the back surface structure of the existing distribution board. It is a figure which shows the arrangement pattern of an electric wire connection terminal. It is a front view which shows the conventional distribution board.

Preferred embodiments of the present invention are shown below. In addition, in this specification, up and down, left and right, and front and rear refer to the directions shown in FIG.
1 and 2 are perspective views showing the plug-in terminal block 1 of the present invention, and FIG. 3 shows a distribution board 10a provided with the plug-in terminal block 1 and a newly added distribution board 10b. FIG. In FIG. 3, reference numeral 11 denotes a main breaker, 12 denotes three bus bars stacked in the front-rear direction connected to the main breaker 11, and 13 denotes a plurality of branch breakers connected to the bus bar 12.

  The plug-in terminal block 1 shown in FIGS. 1 and 2 has a plurality of plugs respectively connected to the bus bar 12 in FIG. 3 at one end of a plug-in terminal main body 2 formed in a vertically elongated rectangular parallelepiped shape. A terminal 3 is provided for each phase, and a plurality of wire connection terminals 4 to which the wires 14 in FIG. Further, in the present embodiment, each wire connection terminal 4 is provided at the end opposite to the plug terminal 3, but it may be positioned closer to the center of the plug-in terminal block body 2. In addition, although the electric wire connection terminal 4 can connect the electric wire 14 by screwing, you may connect the electric wire 14 without using screws, such as a quick connection terminal. With the above configuration, the plug terminal 3 is on the power supply side, and the wire connection terminal 4 is on the load side. Further, the plug-in terminal block main body 2 of the plug-in terminal block 1 may be formed in a rectangular parallelepiped shape or a cube shape elongated in the left-right direction.

  The plug terminal 3 and the wire connection terminal 4 are electrically connected inside the plug-in terminal block body 2, and the voltage between the N-phase of the bus bar 12 and the L1 phase and the N-phase of the bus bar 12 are connected between both terminals. A voltage between the L2 phases and a voltage between the L1 and L2 phases are applied, respectively. In addition, it is preferable to use a stranded wire or the like for the connection between both terminals, and by using such a member having excellent flexibility, it is possible to absorb slight errors such as height and width generated in the bus bar 12. It will be possible. Moreover, in order to make it easy to visually recognize the relationship between both terminals, it is more preferable to provide a display of each phase (N phase, L1 phase, L2 phase) of the bus bar 12 on the power connection terminal 4.

  As shown in FIG. 2, three groove portions 5 extending in the left-right direction are formed on the side surface of the plug-in terminal block body 2 on the plug terminal side, and when the plug-in terminal block 1 is installed, these groove portions 5 serve as the bus bar 12. Will be fitted. Here, the plug terminals 3 are arranged in the respective grooves 5 so as to be vertically aligned in the front-rear direction, but may be arranged on a diagonal line on the side surface of the plug terminal. Note that a plurality of plug terminals 3 for each phase may be provided in order to withstand a high current capacity, or may have a wide shape.

  Here, as shown in FIG. 1, the three wire connection terminals 4 are arranged side by side in the left-right direction, which is the width direction of the plug-in terminal block body 2, whereby the wire 14 is connected from each wire connection terminal 4 to the bus bar. 12 can be pulled out vertically. Therefore, when the distribution board 10b is newly added as shown in FIG. 3, a part of the branch breakers 13 is removed and the plug-in terminal block 1 of the present invention is incorporated at this location. From the power connection terminal 4, the electric wire 14 is drawn out in a direction perpendicular to the bus bar 12, that is, downward. For this reason, it is not necessary to secure the installation space for the feed terminal as in the prior art, and further, since the electric wire 14 can be pulled out below the plug-in terminal block body 2, the conventional electric wire is parallel to the bus bar 12. The wiring space generated by pulling out from the side of the plug-in terminal block body is also unnecessary. Therefore, when the distribution board 10b or the like is newly added, the space occupied in the housing by the electric wires 14 drawn from the plug-in terminal block 1 can be reduced.

  Further, a plurality of wiring holes 15 are formed on the back side of the existing distribution board 10a to allow the electric wires 14 extending from the branch breaker 13 to be inserted as shown in FIG. Therefore, by making the outgoing line direction of the electric wire 14 from the plug-in terminal block 1 the same as the outgoing line direction from the branch breaker 13 as in the present invention, this wiring hole 15 is utilized when the distribution board 10b is added. Thus, wiring to each load can be performed, and wiring space can be reduced.

  Further, as shown in FIG. 4, a mounting base 16 for mounting the branch breaker 13 is provided on the back side of the distribution board 10a. A plurality of fixing holes 17 are formed in the mounting base 16, and the branch breaker 13 is fixed by engaging a fixing portion (not shown) provided in the branch breaker 13 with the fixing hole 17. Yes. Here, as shown in FIG. 1, the plug-in terminal block 1 is provided with a fixing portion 6 that can be engaged with the fixing hole 17, and the plug-in terminal block 1 is attached by a structure similar to the fixing structure of the branch breaker 13. It is preferable that the base 16 can be fixed.

  Moreover, in this embodiment, the left-right width of the plug-in terminal block main body 2 is set to an integral multiple of the left-right width of the branch breaker 13 provided in the distribution board 10a. As a result, the number of branch breakers 13 to be replaced with the plug-in terminal block 1 when the distribution board 10b is added is minimized, and the space in the distribution board 10a is not wasted. Furthermore, the length in the vertical direction of the plug-in terminal block body 2, that is, the length in the direction perpendicular to the longitudinal direction of the bus bar 12 may be substantially the same as the length in the vertical direction of the branch breaker 13. The load side end face with the plug-in terminal block 1 can be arranged on the same straight line. Thereby, the plug-in terminal block 1 can be wired in an orderly manner according to the wiring of the branch breaker 13.

  Further, in the present embodiment, as shown in FIG. 5A, three wire connection terminals 4 are arranged in parallel with the longitudinal direction of the bus bar 12 so that the heights of these wire connection terminals 4 are substantially the same. In addition, each wire connection terminal 4 is arranged obliquely (FIG. 5 (b)), inverted V shape (FIG. 5 (c)) or V shape (FIG. 5 (d)). ). Moreover, the left-right width of the plug-in terminal block body 2 may be substantially the same as the left-right width of the branch breaker 13, and the three wire connection terminals 4 may be arranged in the upper, middle, and lower stages so as to be stepped in the vertical direction. .

  In the present embodiment, a wire is used by connecting both terminals in the plug-in terminal block main body 2, but a plate-like conductor may also be adopted. In this case, it is preferable that the height of the central plug terminal 3 is substantially the same as the height of the terminal seat of the wire connection terminal 4 and the distance from the other plug terminals 3 is substantially the same. As a result, it is possible to connect to the central plug terminal 3 using a straight conductor, and to connect to the other plug terminals 3 before and after using a conductor bent in a crank shape, thereby reducing the manufacturing cost. can do.

  Further, the plug-in terminal block 1 of the present invention may be provided with a measuring device such as a CT or a seismic sensor.

DESCRIPTION OF SYMBOLS 1 Plug-in terminal block 2 Plug-in terminal block main body 3 Plug terminal 4 Electric wire connection terminal 5 Groove part 6 Fixed part 10 Distribution board 11 Main breaker 12 Busbar bar 13 Branch breaker 14 Electric wire 15 Wiring hole 16 Mounting base 17 Fixed hole 20 Feeding terminal

Claims (5)

A plug terminal connected to a bus bar provided in the distribution board;
A plug-in terminal block having a wire connection terminal to which an electric wire is connected,
The plug-in terminal block, wherein the electric wire connection terminal allows the electric wire to be pulled out in a direction perpendicular to the bus bar.   The plug-in terminal block according to claim 1, wherein the wire connection terminal is provided at an end opposite to the plug terminal.   The plug-in terminal block according to claim 1 or 2, wherein a plurality of the electric wire connection terminals are provided, and the electric wire connection terminals are arranged in parallel with a longitudinal direction of the bus bar.   The plug-in terminal block according to any one of claims 1 to 3, wherein a left-right width of the plug-in terminal block main body is an integral multiple of a left-right width of a branch breaker provided in the distribution board.   A distribution board comprising the plug-in terminal block according to claim 1.

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