JP2007300707A - Self-standing distribution panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-standing distribution panel in which pulling-in of a power supply wire is facilitated and the housing can be miniaturized. <P>SOLUTION: A distribution panel module 1 mounting a main breaker 2 and a plurality of branch breakers 3 is fixed to a self-standing fixed mounting rail member 4. An opening 10a for inserting a wire is formed at an upper part in the back of the housing 10 of the distribution panel module 1, a lead bar 21 connected to the primary of the main breaker 2 is extended in the depth direction while opposing the extended portion 21a to the opening 10a and connected with the power supply wire pulled in from the opening 10a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a self-supporting distribution board in which a power supply wire can be easily drawn and a housing can be miniaturized.

  A conventional self-supporting distribution board is usually one that draws in a power supply wire from the bottom of the housing (see, for example, Patent Document 1).

However, such a conventional self-supporting distribution board is generally one in which a main breaker is arranged at the upper part of the casing, and it is necessary to route the power supply wire to the upper side inside the casing. Therefore, this routing work is not only troublesome, but there is a problem that the casing must be enlarged for the space for routing.
Japanese Patent Application Laid-Open No. 2005-31267

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems and provides a self-supporting distribution board in which a power supply wire can be easily drawn and a housing can be downsized.

  The self-supporting distribution board of the present invention is a power distribution board module mounted with a main breaker and a plurality of branch breakers attached to a self-supporting mounting and fixing rail member. An opening was formed, the lead bar connected to the primary side of the main breaker was extended in the depth direction, the extended portion was faced to the opening, and the power supply cable drawn from the opening was connected This is a basic invention.

  Further, in the present invention, a notch is formed between the housing main body of the distribution board module housing and the door that opens and closes the front opening of the housing main body, and the load side wiring of the branch breaker is led out. Is preferred. Furthermore, it is preferable to provide an electric wire support bar on the outer back side of the mounting fixing rail.

  The above-described self-supporting distribution board of the present invention is formed with an opening for inserting a wire above the back of the casing of the distribution board module, and extends a lead bar connected to the primary side of the main breaker in the depth direction. Since the extension portion faces the opening and the electric wire drawn from the opening is connected, the work space can be set by opening the opening for the connection work of the power supply wire. Work can be performed from the outside of the wide casing. Further, since it is not necessary to route the power supply wire inside the housing, a space for this wiring is not required, and the housing can be miniaturized.

  In addition, if a self-supporting mounting and fixing rail member for attaching the distribution board module is provided with a back plate, openings corresponding to these openings for inserting electric wires formed on the back plate above the back of the housing are also provided. Of course, the portion is provided.

  In addition, if a notch is formed between the housing body of the distribution board module housing and the door that opens and closes the front opening of the housing body, the load-side wiring of the branch breaker is connected, Since the load-side wiring of the branch breaker facing the portion can be easily routed, it is not necessary to route the load-side wiring in the housing, so that the housing can be further downsized. Furthermore, by providing the electric wire support bar on the outer side of the back surface of the mounting and fixing rail, the power supply wires and the load side wiring exposed on the outer side of the casing can be fixed together with a binding band.

Next, a preferred embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a distribution board module on which a main breaker 2 and a plurality of branch breakers 3 are mounted. The distribution board module 1 is detachably attached to the upper part of a self-supporting mounting and fixing rail member 4 as shown in FIGS. 2, 3, 4, 7 and 8. Further, an extension distribution board module 5 having a single branch breaker 3 mounted on the distribution board module 1 as shown in FIGS. It can be detachably attached so that it can be reduced. That is, both modules 1 and 5 are formed so that the bus bars 6 and 6 arranged in the respective modules can be directly connected / separated so that the distribution board module 5 for extension can be added / reduced to the distribution board module 1. The number of branch breakers can be increased or decreased.

  In this embodiment, as shown in FIG. 11, the bus bar 6 arranged in the distribution board module 1 is extended to the outside from the bottom surface of the housing 10, and the plug receiving part made of a spring plate is provided in the extended portion 61. A plug terminal fitting 61a is attached, and a portion of the bus bar 6 arranged in the extension distribution board module 5 facing the plug terminal fitting 61a as shown in FIGS. 15, 16, and 20 is connected to the plug terminal fitting 61a. It is assumed that the plug terminal fitting 61b of the insertion blade type corresponding to can be easily connected and disconnected.

  And the opening part 10a for electric wire insertion is formed in the upper surface of the housing | casing 10 of the said distribution board module 1 as shown in FIG. 2, and the primary breaker 2 is primary as shown in FIG. 6, FIG. The lead bar 21 connected to the side is extended in the depth direction, the extension portion 21a faces the opening 10a, and the power supply wire 7 drawn from the opening 10a is connected.

  The self-supporting mounting and fixing rail member 4 for mounting the distribution board module 1 has a rail body 41 having a U-shaped back plate 41b with an outer casing 41a as shown in FIG. The back plate 41 is provided with an opening 4a corresponding to the opening 10a for inserting the electric wire formed above the back surface of the housing 10, and the power supply electric wire is provided through the opening 4a. Is drawn into the housing 10. Further, as shown in FIG. 3, the opening 4 a is closed by a wiring cover 8 having a wire insertion port 81 formed at the lower end to cover the charging portion and prevent dust from entering the housing 10. Further, the mounting and fixing rail member 4 has a plurality of wire support bars 42 arranged on the outside of the back surface of the rail body 41 at intervals in the vertical direction, and the power supply wires and the load side wiring outside the housing 10 are bound together. It is supposed that it can be fixed together in a good manner. A ground terminal bar 43 is provided on the load side of the branch breaker 3 on the outer surface of the rail body 41.

  The main breaker 2 disposed above the casing body 11 is attached to a mounting base 90 that is attached to the upper front surface of a pair of internal rails 9 and 9 that are vertically disposed on both sides of the casing body 11. The secondary side terminal portion 22 of the breaker 2 is electrically connected between the internal rails 9 and 9 via the connection bars 23 and the three bus bars 6 arranged in the vertical direction with the width surface facing the front. . Further, the front end surfaces of the inner rails 9 and 9 are provided with insertion holes 91a corresponding to plug receiving metal type plug terminal fittings 61a made of spring plates attached to the respective bus bars 6 by screwing at predetermined intervals. The disposed insulating plate 91 is screwed and attached so as to cover the bus bar 6. In addition, there exists an advantage which can make the depth dimension of the housing | casing 10 small by arrange | positioning the three bus-bars 6 with a width surface facing the front like illustration.

  Then, the plug-in adapter 31 on which the branch breaker 3 shown in FIGS. 13 and 14 is mounted on the insulating plate 91 is inserted through the insertion hole 91a through the insertion blade type plug terminal 31a protruding from the lower end surface, and the plug terminal fitting 61a. Is fitted and attached. Note that the branch breaker 3 may be one in which the plug terminal 31 a is directly projected on the back surface of the branch breaker 3 without using the plug-in adapter 31. Moreover, you may connect the branch breaker 3 and the bus-bar 6 by means, such as screwing, with a covered electric wire or a branch bar irrespective of a plug-in.

  Further, the casing 10 constituting the distribution board module 1 has a casing main body 11 having a convex cross-sectional shape protruding from the back side and an opening at the front, and an inverted box shape that allows the opening to be closed. It is assumed that the door 12 is a single door type. In addition, an outgoing line portion of the load-side electric wire of the branch breaker 3 is provided at a contact portion between the end surface of the side plate portion 121 located on the opening end side of the door 12 and the housing body 11. This outgoing line portion is provided with a series of cutout portions 121a up and down from the front end side of the side plate portion 121, and a series of urethane rubber or the like is formed at the contact portion between the end surface of the cutout portion 121a of the side plate portion 121 and the housing body 11. The elastic members 122 and 122 are attached and the load-side electric wires are held by elastic deformation of the elastic members, and the load-side electric wires can be held and dust can be prevented from entering. In addition, by setting it as this structure, it can respond to the fluctuation | variation of the number of load side electric wires.

  Further, the extended portion 61 of the bus bar 6 extended to the outside of the bottom surface of the housing 10 and the plug terminal fitting 61a attached thereto are covered with an insulating case 101 made of resin as shown in FIGS. The insulation case 101 is provided with a notch 101a in which the plug terminal fitting 61b of the insertion bar type of the bus bar 6 arranged in the distribution board module 5 for extension can be provided at a position corresponding to the plug terminal fitting 61a in the insulating case 101 to ensure insulation. Thus, the plug terminal fitting 61b can be easily connected and disconnected.

  Next, the additional distribution board module 5 shown in FIGS. 15 and 16 will be described in detail. As shown in FIGS. 17 and 18, the casing 50 constituting this is provided with an inverted box-like door 53 that can be opened and closed by a hinge portion on a mounting base 51 having a bus bar case 52 on its lower surface. The door 53 may be removable without being hinged, or the mounting base 51 may be box-shaped and the door 53 may be plate-shaped. The bus bar case 52 provided below the mounting base 51 includes a shallow bar-shaped bus bar case main body 52a for storing the short bus bar 6 shown in FIG. The bus bar case main body 52a shown in FIG. 5 is configured by a lid portion 52b integrated with an attachment base 51 that closes the upper opening of the bus bar case main body 52a, and the lid portion 52b is located on the lower surface of the attachment base 51.

  As shown in FIGS. 17 to 19, the branch breaker 3 is attached to the mounting base 51 in the housing 50, and the primary side of the breaker 3 is connected to the bus bar 6. That is, in the illustrated embodiment, the plug breaker 3 is mounted on the plug-in adapter 31 and the plug terminal 31a projecting from the lower end surface of the plug-in adapter 31 connected to the terminal portion on the primary side not shown is connected to the mounting base. The branch breaker 3 and the bus bar 6 are connected to each other by the plug terminal 31a through the insertion hole 51a that is provided through the pin 51 and sandwiched by the plug terminal fitting 6c made of a spring plate provided on the bus bar 6. Note that the plug terminal 31 a may be directly provided on the back surface of the branch breaker 3 without using the plug-in adapter 31. Moreover, you may connect the branch breaker 3 and the bus-bar 6 by means, such as screwing, with a covered electric wire or a branch bar irrespective of a plug-in.

  The bus bar case 52 has one end surface on the plug terminal fitting 61b side extending from the bus bar 6 extending from the one end surface side of the mounting base 51 to the inside of the plug terminal fitting 61a. The other end surface of the mounting base 51 is located on the other end side of the mounting base 51 so that the upper end side of the plug terminal fitting 61b has a bowl shape. It is supposed to be covered by the side.

  Further, since the lid portion 52b on the other end surface side facing the one end surface side of the bus bar case 52 is exposed from the lower side on the other end surface side of the mounting base 51, the plug terminal receiving portion 61a is provided from the upper side of the lid portion 52b. If it is provided so as to face the cut hole 54, the connection plug terminal portion 61a and the plug terminal receiving portion 61b of each bus bar 6 of the extension distribution board module 5 that are adjacent to each other can be easily connected and the connection plug Since the terminal portion 61a is not exposed, insulation can be ensured.

  Further, a side plate portion 511 is provided at the side edge of the mounting base 51 facing the load side terminal portion of the branch breaker 3 of the casing 50 constituting the expansion distribution board module 5, and the end surface of the side plate portion 511 Since the lead-in portion for the load-side electric wire of the breaker is formed between the end surface of the side plate portion 531 facing the load-side terminal portion of the inverted box-shaped door 53 provided on the mounting base 51 that comes in contact with the open / close state, it can be wired. Work is easy.

  Further, this drawing-in portion is shown in the drawing, an elastic material 532 such as urethane rubber is attached in series to the end surface of the side plate portion 511 of the mounting base 51 and the end surface of the side plate portion 531 of the door 53, and the elasticity of the elastic material. The load-side electric wire is clamped by deformation, and the load-side electric wire can be fixed and dust can be prevented from entering. In addition, although the said structure can respond to the fluctuation | variation of the number of load electric wires according to the number of terminals of the branch breaker 3, the recessed part may be formed in the end surface of the side-plate part 511, and the packing material may be mounted | worn. . In addition, when the mounting base 51 is box-shaped and the door 53 is plate-shaped, the side plate portion 511 of the mounting base 51 is positioned below the opening, and the end surface of the side plate portion 531 of the door 53 is corresponding. It will be a protruding position.

The perspective view which shows embodiment of this invention. The perspective view from the back side which removes a wiring cover and shows embodiment of this invention. The perspective view from the back side which shows embodiment of this invention. The perspective view which shows the process of expanding an expansion distribution board module. The expansion perspective view which shows the process of expanding an expansion distribution board module. The perspective view which abbreviate | omits the housing | casing for the principal part of embodiment of this invention. The perspective view from the back side which shows the principal part of embodiment of this invention abbreviate | omitting a housing | casing. The perspective view from the back side which removes a wiring cover and shows embodiment of this invention. It is a figure which shows an attachment fixed rail member, (A) is a front side perspective view, (B) is a back side perspective view. The perspective view which shows a distribution board module. The perspective view which shows the extension part of the bus-bar of a distribution board module. The perspective view shown in the state which covered the extension part of the bus-bar of a distribution board module with the insulation case. The perspective view which looked at the branch breaker mounted in the plug-in adapter from upper direction. The perspective view which looked at the branch breaker mounted in the plug-in adapter from the lower part. The perspective view which looked at the expansion distribution board module from upper direction. The perspective view which looked at the expansion distribution board module from the downward direction. The perspective view which shows an expansion distribution board module by opening a door. The perspective view which removes the branch breaker which opened the door and mounted the extension distribution panel module in the plug-in adapter. The perspective view which removes the branch breaker which opened the door and mounted the extension distribution panel module in the plug-in adapter. The perspective view which shows the bus-bar case main body of an expansion distribution board module.

Explanation of symbols

1 Distribution board module
10 housing
10a Opening for inserting wires
11 Housing body
12 doors
121a Notch 2 Master breaker
21 Lead bar
21a Extension part 3 Branch breaker 4 Mounting fixed rail member
42 Wire support bar 5 Additional distribution panel module 6 Bus bar 7 Power supply wire

Claims (3)

  A distribution board module equipped with a main breaker and a plurality of branch breakers is attached to a self-supporting mounting and fixing rail member, and an opening for inserting an electric wire is formed above the rear surface of the distribution board module housing. A self-supporting power distribution device characterized in that a lead bar connected to the primary side extends in the depth direction, the extension portion faces the opening, and a power supply wire drawn from the opening is connected. Board.   The load-side wiring of the branch breaker according to claim 1, wherein a notch portion is formed between the housing body of the housing of the distribution board module and the door that opens and closes the front opening of the housing body. Stand-alone distribution board.   The self-supporting distribution board according to claim 1 or 2, wherein an electric wire support bar is provided outside the back surface of the mounting fixed rail.

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