JP2010022087A - Distribution board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board facilitating replacement and extension of a primary transmission breaker. <P>SOLUTION: Laminated primary transmission plug-in bus line bars 5 (51, 52, 53) branched from the primary transmission terminal board 2 connected to the primary terminal 11 of a main breaker 1 are arranged along the side face in the longitudinal direction of the main breaker 1, allowing a plug-in type primary transmission breaker 4b to be connected to the primary transmission plug-in bus line bars 5 (51, 52, 53). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a distribution board provided with a primary feed breaker.

As a distribution board provided with a primary feed breaker, the primary feed breaker was connected by an electric wire from the connection point of the connection bar between the main breaker and the incoming terminal block. However, wiring was troublesome when adding a primary feed breaker.
Catalog issued by Nitto Kogyo Co., Ltd. Nitto standard distribution panel / control panel catalog '97 -'98BAN P32

  The present invention solves the conventional problems as described above, and provides a distribution board in which a primary feed breaker and a primary feed breaker can be easily replaced and expanded.

  The distribution board of the present invention is branched from the primary feed terminal block connected to the primary terminal of the main breaker, and the stacked primary feed plug-in bus bars are arranged along the longitudinal side surface of the main breaker. The basic invention is characterized in that a plug-in type primary feed breaker is connected to the primary feed plug-in bus bar.

  In the present invention, a transition bar that is pulled out in the vertical direction of the primary feed plug-in bus bar is attached to the lower part of the primary feed terminal block connected to the primary side terminal of the main breaker, and the tip of the transition bar is attached It is preferable to connect a primary feed plug-in bus bar stacked on the connection end portion as a connection end portion configured in a step shape having a different height for each pole.

  Moreover, it is preferable that each of the crossing bars is mounted on the primary feed terminal block from the vertical direction. Furthermore, it is preferable that the end portions of the stacked primary feed plug-in bus bars are fitted and supported in L-shaped lateral grooves formed at the inner corners of the support member bent in an L shape.

  The distribution board according to the present invention has a structure in which the stacked primary feed plug-in bus bars are arranged along the longitudinal side surface of the main breaker, so that a plurality of plug-ins are connected to the primary feed plug-in bus bar. If the primary feed breaker is connected, the primary feed breaker will be located on the side of the main breaker, so the plug-in type primary feed breaker is the length of the plug-in bus bar in the longitudinal direction of the primary feed. Since the plug-in type primary feed breaker can be installed with a single touch, the expansion work is easy.

  Also, a transition bar that is pulled out in the vertical direction of the primary feed plug-in bus bar is attached to the lower part of the primary feed terminal block connected to the primary side terminal of the main breaker, and the tip of the transition bar is attached to each pole. If the primary feed plug-in bus bar that is stacked on the connection end is connected as a connection end configured in steps with different heights, the primary feed terminal block can be reduced in size and distributed. The board can be downsized. And, by connecting the primary feed plug-in bus bar stacked on the connection end as a connection end configured in a stepped shape with a different height for each pole at the tip of the crossing bar The score is also reduced.

  Also, if each cross bar is attached to the primary feed terminal block from each vertical direction, the insulation distance between the different poles can be taken accurately, so that the insulation treatment can be minimized. . Furthermore, when the end of the laminated primary feed plug-in bus bar is fitted and supported in an L-shaped lateral groove formed in an inner corner of a support member bent in an L shape, the primary feed plug When inserting the terminal part of the plug-in type primary feed breaker into the in-bus bar, the back end in the width direction of the bus bar hits the bottom of the horizontal groove, so that the force applied at the time of insertion can be accurately received and supported. There is no inconvenience such as poor insertion of the terminal portion of the primary feed breaker due to deformation of the member.

Next, a preferred embodiment of the present invention will be described with reference to the drawings.
[First Embodiment]
First, the first embodiment shown in FIGS. 1 to 8 will be described.
1 and 2 are a front view and a perspective view showing a main part of a distribution board according to the present invention. In these drawings, reference numeral 1 denotes a three-pole (L1, N, L2) main circuit breaker, and a primary feed terminal block 2 also serving as a wire lead-in terminal block is connected to a primary side terminal 11 of the main circuit breaker 1. In addition, a main bar 3 is connected to the secondary terminal 12 of the main breaker 1 via a cross bar 121, and a side of the main bar 3 has a large number of secondary lamps and electric power. A branch breaker 4a is juxtaposed.

  Reference numeral 5 denotes a three-pole primary feed plug-in bus bar arranged along the side surface in the longitudinal direction of the main breaker 1 and stacked at an insulating distance above and below, and the three-pole primary feed plug-in bus bar 5 ( 51, 52, 53) are connected to the three-pole terminal plates 21, 22, 23 of the primary feed terminal block 2 via the three-pole jumper bar 6 (61, 62, 63) branched from the primary feed terminal block 2. Has been.

  A plurality of plug-in type primary feed breakers 4 b are connected to the primary feed plug-in bus bar 5. Then, since the primary feed breaker 4b is disposed on the side of the main breaker 1, the number of plug-in type primary feeds corresponding to the length in the longitudinal direction of the primary feed plug-in bus bar 5 is provided. The breaker 4b can be added. Further, since the terminal portion of the primary feed breaker 4b is inserted into and connected to the primary feed plug-in bus bar 5, the connection work is performed with a single touch, so that replacement and expansion are easy.

  The primary feed terminal block 2 that also serves as the wire lead-in terminal block is provided with the above-described three-pole terminal plates 21, 22, and 23 on the upper surface of the terminal block main body 20 made of an insulating material. , 22, 23 are formed on terminal portions 21 a, 22 a, 23 a that connect the longitudinal ends of the main breaker 1 to the primary side terminal 11, and the power source side terminal portion that connects the power line 7 that has the base end drawn from the outside. 21b, 22b, and 23b. Thus, since the power line 7 is not connected to the primary side terminal 11 of the main breaker 1 together with the primary side terminal portion of the primary feed terminal block 2, two crimp terminals can be connected.

  The connecting bars 61, 62, 63 branched from the primary feed terminal block 2 and connected to the primary feed plug-in bus bars 51, 52, 53 are respectively connected to the bottom of the primary feed terminal block 2. 62 and 63 are respectively mounted on the primary feed terminal block from the vertical direction. Referring to FIG. 6, the transition bar 61 is attached to the primary feed terminal block 2 from the lower side, the transition bar 62 is attached from the back side, and the transition bar 63 is attached from the side surface side.

  The connecting bars 61, 62, 63 are connected to the center of each terminal board 21, 22, 23 by shifting the longitudinal front and rear positions of the connecting portions 61a, 62a, 63a. Thus, the transition bars 61, 62, 63 are pulled out and attached to the lower part of the primary feed terminal block 2 in the vertical direction of the primary feed plug-in bus bars 51, 52, 53. The size can be reduced, and the distribution board can also be reduced in size. Further, since each of the crossing bars 61, 62, 63 is attached to the primary feed terminal block 2 from the vertical direction, the insulation distance between the different poles can be accurately taken. The leading ends of the crossing bars 61, 62, 63 have the same length and are formed into step-like connection end portions 61b, 62b, 63b having different heights for each pole, and are stacked and stacked for primary feeding plug-in buses. The bars 51, 52, and 53 are connected.

  The primary feed terminal block 2 has receiving step portions 81, 82 for supporting stepped connection end portions 61a, 62a, 63a having different heights at the tips of the connecting bars 61, 62, 63 attached to the lower portion. The stepped terminal block 8 having 83 in a step shape is integrally provided.

  The stepped terminal block 8 is the same as the longitudinal direction of the primary feed plug-in bus bars 51, 52, 53 connected to the connecting ends 61a, 62a, 63a at the ends of the crossing bars 61, 62, 63. The receiving step portions 81, 82, 83 are formed linearly in the direction. Between the receiving step portions 81 and 82 and the receiving step portions 82 and 83, holes 92 and 93 for inserting the primary feed plug-in bus bars 52 and 53 located in the middle and lower steps are provided. Assuming that a hole 99 is provided on the side surface on the terminal block 2 side of the upper surface of the stepped portions 81, 82, 83, the connecting end portions of the plug-in bus bars 51, 52, 53 for primary feeding and the crossing bars 61, 62, 63 It is assumed that the corresponding poles 61b, 62b, and 63b can be connected to each other.

  Further, the stacked primary feed plug-in bus bars 51, 52, and 53 are fitted and supported in an L-shaped lateral groove portion 9a formed at an inner corner of the support member 9 whose ends are bent in an L shape. As a result, when the terminal portion of the plug-in type primary feed breaker 4b is inserted into the primary feed plug-in bus bar 5, the rear end in the width direction of the bus bar 5 hits the bottom of the lateral groove portion 9a, so that it is added at the time of insertion. The force can be accurately received, and there is no inconvenience such as poor insertion of the terminal portion of the primary feed breaker 4b due to deformation of the support member. In addition, the rib 9b which a part of bus-bar 5 contact | abuts is provided in the up-and-down wall surface of the horizontal groove part 9a, The distortion of the bus-bar 5 is absorbed and it can be fitted and supported.

[Second Embodiment]
Next, a second embodiment shown in FIGS. 10 to 12 will be described.
Since this embodiment is different from the first embodiment only in the primary feed terminal block, the different primary feed terminal block will be described.
In FIG. 10, reference numeral 1 denotes a three-pole main breaker, and a primary feed terminal block 2 is connected to a primary side terminal 11 of the main breaker 1. The secondary breaker terminal 12 of the main breaker 1 is connected to a bus bar connected to a number of branch breakers for secondary and electric power (not shown).

  A plurality of plug-in type primary feed breakers (not shown) are arranged on a three-pole primary feed plug-in bus bar 5 which is arranged along the longitudinal side surface of the main breaker 1 and stacked with an insulation distance above and below. Is connected. Then. Since this primary feed breaker is arranged on the side of the main breaker 1, the number of plug-in type primary feed breakers that can be installed in the length of the longitudinal direction of the primary feed plug-in bus bar 3 is increased. Is something that can be done.

  The primary feed terminal block 2 is formed with terminal portions 21 a, 22 a, and 23 a that project to the front side on the upper surface of a terminal block case 20 made of an insulating material and are connected to the primary side terminal 11 of the main breaker 1. The pole crossing bar 6 (61, 62, 63) is stored in the terminal block case 20 while ensuring insulation, and the length of the tip is the same, and the stepped connection ends having different heights for each pole. 61a, 62a, 63a are configured to be connected to the stacked primary feed plug-in bus bars 51, 52, 53.

  The primary feed terminal block 2 is provided with receiving step portions 81, 82, 83 for supporting stepped connection end portions 61b, 62b, 63b having different heights at the tips of the crossover bars 61, 62, 63 in a stepped shape. Are provided integrally with the stepped terminal block 8. And it shall connect with the connection end part 51a, 52a, 53a bent at the front-end | tip of the plug-in bus bar 51, 52, 53 for primary sending connected to the connection end part 61b, 62b, 63b.

  In this embodiment, the power line drawn from the outside is connected to the primary side terminal 11 of the main breaker 1 together with the primary feed terminal block 2.

The front view which shows 1st Embodiment. The perspective view which shows 1st Embodiment. The front view which shows the principal part of 1st Embodiment. The perspective view which shows the principal part of 1st Embodiment. The perspective view which shows the primary feed terminal block used for 1st Embodiment from upper direction. The perspective view shown from the upper side in the state which separated the bar | burr across the primary feed terminal block used for 1st Embodiment. The perspective view which shows the primary sending terminal block used for 1st Embodiment from the downward direction. The perspective view shown from the lower part in the state which separated the bar | burr across the primary feed terminal block used for 1st Embodiment. The perspective view which shows an example of the supporting member used for 1st Embodiment. The perspective view which shows 2nd Embodiment. The perspective view which shows the primary feed terminal block used for 2nd Embodiment. The perspective view which shows the primary sending terminal block used for 2nd Embodiment from the back side.

Explanation of symbols

1 Main breaker
11 Primary side terminal 2 Primary feed terminal block
4b Primary feed breaker 5 Primary feed plug-in bus bar
51 Plug-in busbar for primary feed
52 Plug-in busbar for primary feed
53 Plug-in busbar for primary feed

Claims (4)

A primary feed plug-in bus bar branched from the primary feed terminal block connected to the primary terminal of the main breaker and arranged along the side surface in the longitudinal direction of the main breaker, and the primary feed plug-in bus bar A distribution board characterized by a plug-in type primary feed breaker connected to the bar. At the bottom of the primary feed terminal block connected to the primary terminal of the main breaker, a transition bar that pulls out the plug-in bus bar for the primary feed is attached in the vertical direction, and the tip of the transition bar has a different height for each pole. The distribution board according to claim 1, wherein a primary feed plug-in bus bar stacked on the connection end is connected as a connection end configured in a stepped shape. The distribution board according to claim 2, wherein each of the crossing bars is mounted on the primary feed terminal block from the vertical direction. The distribution board according to claim 1, wherein the end of the laminated primary feed plug-in bus bar is fitted and supported in an L-shaped lateral groove formed in an inner corner of a support member bent in an L-shape. .

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