JP4472842B2 - Distribution board mounting structure for load name on distribution board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a distribution board.
[0002]
[Prior art]
In the conventional distribution board, the load name entry plate 113 is attached to the surface of the wiring oil 116 as in the distribution board 101 shown in FIG. And when the wiring oil 116 was removed like the distribution board 101 shown in FIG.4 (b), the charging part 112 extended from the main breaker 110 to each branch breaker 111 was exposed. Some distribution boards do not have wiring oysters (not shown), but in that case, the charging unit cover is fixed to the charging unit support member with a tapping screw or the like. The exposure of live parts was prevented.
[0003]
[Problems to be solved by the invention]
For this reason, when performing the connection work at the time of construction, it is not easy to check the connection load of the branch breaker 111 as the work target because the work is performed by removing the wiring oil 116 to which the load name entry plate 113 is attached. There was a risk of incorrect connections. Also, if you want to work while looking at the load name entry board 113, you must place the removed wiring oil 116 at a position that is easy to see next to the distribution board 101. It was necessary to take extra care in addition to the wiring work, such as avoiding mishandling. Furthermore, sufficient attention should be paid to an electric shock accident in the exposed charging unit 112, and it has been troublesome to screw the exposed charging unit 112 when it is covered with the charging unit cover.
[0004]
In view of these problems, the present invention can easily confirm the connection load when connecting the electric wire to the branch breaker when installing the distribution board, and eliminates the exposure of the charged part even when the wiring oil is removed. Thus, an object of the present invention is to realize a distribution board that can prevent accidents such as electric shocks and that can easily cover an exposed charging part.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention of claim 1 is characterized in that, among the charging parts extending from the main breaker to each branch breaker, the front part of the charging part extending vertically to connect the branch breaker is connected to the branch breaker. Cover with a load name entry plate that can enter the name of the connected load, and provide a window that matches the load name entry plate on the wiring oi that covers other than the operation part of the equipment installed in the distribution board. A load name entry plate mounting structure for a distribution board that allows the load name entry plate to be exposed or seen through in a state where the load name entry plate is mounted, and a holding portion that holds both upper and lower ends of the load name entry plate The load name entry plate supporting means provided on the distribution board protrudes from the bottom of the distribution board, and the holding portion presses the load name entry plate forward, and the load name entry plate is engaged with the push piece. Prevent popping out due to pressure Configured to be formed in the pieces.
[0006]
The invention of claim 2 is the invention of claim 1, wherein the load name entry plate support means is elastically deformable, and the load name entry plate support means is deformed to lock the load name entry plate by the claw pieces. It is configured to be releasable.
[0007]
The invention of claim 3 is the invention of claim 1 or 2, wherein at least one of the holding portions provided at the upper and lower ends of the load name entry plate has two sets of push pieces and claw pieces, Only the load name entry plate is locked.
[0008]
According to a fourth aspect of the present invention, in the first to third aspects of the invention, the load name entry plate support means is also configured to be a support for the charging unit.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described below in detail with reference to the drawings. In the following, the same constituent elements in the drawings are denoted by the same reference numerals.
[0010]
A distribution board 1 according to the first embodiment shown in FIG. 1A includes a main body 2 containing a main breaker 10, a branch breaker 11 and electric materials such as electric wires, and a main body 2 that is freely hinged to the main body 2. The external appearance is constituted by a distribution board door (not shown, the same applies hereinafter) that protects the operation unit 15 of the breaker 10 and the branch breaker 11. When the distribution panel door is removed and the wiring oi 16 that protects the wiring portion such as the electric wire and the exposed conductor is attached, the operation unit 15 of the main breaker 10 and the plurality of branch breakers 11 is provided on the wiring oi 16. It is exposed from the arrangement opening 33 and can be operated, and the operation portions 15 of the plurality of branch breakers 11 are provided on the left and right sides, and a rectangular window 17 is punched and formed between them. The punched window 17 can be seen through so that the wiring load 16 and the rectangular load name entry plate 13 attached to the straight portion of the charging unit 12 form a flat surface, or a transparent resin plate is fitted. It is good to make it. By doing so, there is no possibility that rainwater, dust, or the like enters from the gap between the window 17 and the load name entry plate 13, and maintenance of the distribution board 1 becomes easy.
[0011]
FIG.1 (b) shows the front view of the distribution board 1 of the state which removed both the distribution board door and the wiring oil 16. FIG. The main breaker 10 in FIG. 1B is a circuit breaker that also serves as a leakage breaker connected to a commercial power supply. An overcurrent exceeding the rated current due to a leakage in the secondary circuit of the main breaker 10 or a short circuit accident. When it is detected, it operates to cut off the current, stops the entire power supply from the commercial power supply to the distribution board to prevent secondary disasters such as electric shock and fire, and power transmission equipment on the power supply side Protect etc.
[0012]
A plurality of branch breakers 11 provided in accordance with the rated current for the connection load are circuit breakers connected by branch wiring to the output end of the main breaker 10 at the charging unit 12. When an overcurrent exceeding the rated current is detected due to a load connection or short circuit accident, it operates to cut off the current and protects the connection load and wiring equipment of lamps, electrical equipment, etc.
[0013]
Next, the charging unit 12 is formed of a bare conductive material such as a plate-like copper connecting the main breaker 10 and the branch breaker 11, and the connecting part to the branch breaker 11 is a straight copper bar 18. It is formed. An upper load name entry plate support 25 and a lower load name entry plate support in which a load name entry plate 13 made of an insulating material holds the upper and lower ends of the load name entry plate 13 so as to cover the front surface of the copper bar 18. 27, it is mounted between the left and right branch breakers. The upper load name entry plate support 25 and the lower load name entry plate support 27 are a form of load name entry plate support means. The load name entry plate 13 is formed so that the name of the load connected to each branch breaker 11 can be entered at a position corresponding to the branch breaker 11.
[0014]
Thus, even if it is in the state where the wiring oil 16 is mounted by mounting the load name writing board 13 so as to cover the charging unit 12 and providing the wiring oil 16 with the window 17 matched to the load name writing board 13. The load name entry plate 13 is exposed from the window 17 and the operation unit 15 can be operated while confirming the load name and the like of the connection destination, so that the reliability of the maintenance inspection work of the distribution board 1 can be increased. On the other hand, even when the wiring oil 16 is removed, the connection work can be performed while confirming the load name of the connection destination, so that erroneous connections can be reduced. Moreover, since the charging part 12 is not exposed, it acts as a protective cover, can prevent accidents such as electric shock due to contact with the copper bar 18, and can improve safety. In addition, since there is no need for the removed wiring oil 16 in the wiring work, there is no need to pay attention to anything other than the wiring work, such as to prevent the wiring oil 16 from being accidentally knocked down and damaged, thereby concentrating on the wiring work. As a result, erroneous connections can be further reduced.
[0015]
Here, attachment of the load name entry plate 13 to the charging unit 12 will be described. For example, as shown in FIGS. 2 (a) and 2 (b), the load name entry plate 13 is provided with an upper load name entry plate support 25 and a lower load name entry which are load name entry means protruding from the bottom of the distribution board 1. The left and right holding portions 29 provided at the front end of the plate support 27 hold the four places on the upper, lower, left and right ends of the load name entry plate 13 so as to cover the front surface of the copper bar 18 between the left and right branch breakers of the charging portion 12. It is attached to.
[0016]
More specifically, the claw piece 31 and the plate-like pressing piece 32 are held by a holding portion 29 that is integrally formed using an elastic material. That is, the load name entry plate 13 is configured such that the lower end portion of the load name entry plate 13 is matched between the claw piece 31 and the push piece 32 of the holding portion 29 of the lower load name entry plate support 27. The lower load name entry plate support 27 is pushed and spread downward, and at the same time, the upper end portion of the load name entry plate 13 is aligned and pushed into the claw piece 31 of the holding portion 29 of the upper load name entry plate support 25. The charging unit 12 is attached by an elastic action. On the other hand, the load name entry plate 13 is detached from the charging unit 12 by pressing the knob portion 30 provided on the holding portion 29 of the upper load name entry plate support 25 or the lower load name entry plate support 27 to load the load name entry plate 13. At the same time as the release from the claw piece 31 that restricts the movement of 13 to the front, the pushing piece 32 pushes the load name entry plate 13 forward.
[0017]
In this manner, the load name entry plate 13 is attached to the charging unit 12 by pressing with the claw pieces 31 of the holding portion 29 provided at the tips of the upper load name entry plate support 25 and the lower load name entry plate support 27. Since it is performed by holding with the piece 32, the removal from the charging unit 12 is similarly easy to attach and detach, and the claw piece 31 and the knob portion 30 integrally formed with the push piece 32 are provided. Thus, it becomes possible to release the locking of the load name entry plate 13 by the claw piece 31 only by pressing the knob part 30, and the removal from the charging part 12 becomes easier, and the construction work is simplified. Can do.
[0018]
As a second embodiment, as shown in FIG. 3, the upper left load name entry plate support 25 </ b> L and the upper right load name entry plate support 25 </ b> R are integrated with a copper bar support 34 that supports the copper bar 18. In addition, the lower left load name entry plate support 27L and the lower right load name entry plate support 27R are formed integrally with the copper bar support 34, and the holding portions 29 provided at the respective ends have a nail. A piece 31 and a push piece 32 are provided. Further, a knob portion 30 is provided on the holding portion 29 of the upper right load name entry plate support 25R and the lower left load name entry plate support 27L.
[0019]
The load name entry plate 13 includes an upper left load name entry plate support 25L, an upper right load name entry plate support 25R, a lower left load name entry plate support 27L, and a lower right load name entry plate support 27R. 4 are held at the top, bottom, left, and right ends by the holding portions 29 provided at the respective tips of the charging portion 12 so as to cover the front surface of the copper bar 18 between the left and right branch breakers 11 of the charging portion 12. Here, in the present embodiment, the load name entry plate 13 is attached to and removed from the charging unit 12 in the same manner as in the first embodiment.
[0020]
Thus, the load name entry plate support means is the upper left load name entry plate support 25L, the upper right load name entry plate support 25R, the lower left load name entry plate support 27L, and the lower right load name entry plate support 27R. For example, when the knob part 30 of the upper right load name entry plate support 25R is pressed to release the claw piece 31 and the load name entry plate 13 is pushed forward by pressing the push plate 32, the upper Since the claw pieces 31 of the holding portion 29 of the left load name entry plate support 25L, the lower left load name entry plate support 27L, and the lower right load name entry plate support 27R remain fitted, the upper right of the load name entry plate 13 Only the portion is held in a raised state, and the load name entry plate 13 can be prevented from falling off. And the same effect | action is acquired even if the knob part 30 of the lower left load name entry board support 27L is pushed. In addition, the knob unit 30 includes an upper left load name entry plate support 25L, an upper right load name entry plate support 25R, a lower left load name entry plate support 27L, and a lower right load name entry plate support 27R. You may provide in at least one of the holding | maintenance parts 29 provided in the front-end | tip. The load name entry plate support means may be provided so as to hold at least one of the upper and lower ends of the load name entry plate 13. Also, the load name entry plate support means can be reversed and used with the same shape up and down.
[0021]
Since the load name entry plate support means including the upper left load name entry plate support 25L and the copper bar support 34 supporting the copper bar 18 of the charging unit 12 are integrally formed in advance, the load It is possible to save the trouble of retrofitting the name entry plate support means and reduce the work time for installing the distribution board.
[0022]
In the above embodiment, the present invention can be applied to a distribution board having a configuration in which the number of branch breakers arranged in the left and right rows is a single row or a plurality of rows such as 3, 4 rows. In addition, even on distribution boards with different numbers of breakers and arrangement directions, load name entry plate support means is provided for the charging parts configured accordingly, and the load name entry plate is attached, and the load name entry is completed. It is also possible to implement the present invention by appropriately changing the shape and configuration of each part within a range not departing from the spirit of the present invention, such as providing a plurality of windows in the wiring oil according to the shape of the board.
[0023]
【The invention's effect】
As described above in detail, according to the invention of claim 1, since it is possible to connect to the branch breaker while confirming the connection load, it is possible to prevent erroneous connection and to prevent an accident. Further, even when the wiring oil is removed, the charged part is not exposed, so that an accident such as an electric shock can be prevented and safety can be improved. Furthermore, since the load name entry plate support means for holding the upper and lower ends of the load name entry plate is provided, the load name entry plate can be easily attached and detached. Further, since no wiring odor is required in the wiring work, it can be concentrated in the wiring work if it is placed in a place where it does not interfere with the work, so that it is possible to further reduce the number of erroneous connections.
[0024]
According to the second aspect of the invention, in addition to the effect of the first aspect, the load name entry plate by the claw piece can be obtained simply by pressing the knob provided on the holding portion so that the load name entry plate support means is easily elastically deformed. The locking can be released, and the load name writing plate can be easily removed from the charging unit.
[0025]
According to the invention of claim 3, in addition to the effect of claim 1 or 2, it is possible to prevent the load name entry plate from falling off by releasing the nail pieces when the load name entry plate is removed from the charging part. There is an excellent effect.
[0026]
According to the invention of claim 4, in addition to the effects of claims 1 to 3, if the load name entry means and the support of the charging unit are integrally formed in advance, the members for installing the distribution board can be reduced, It is possible to save the trouble of retrofitting the load name entry plate support means, and to achieve the excellent effect of reducing the work time for installing the distribution board.
[Brief description of the drawings]
1A and 1B show a first embodiment of a distribution board according to the present invention, in which FIG. 1A is a front view in a state where a distribution board door is removed and wiring oil is attached, and FIG. It is a front view in the state where the wiring oy was removed.
FIGS. 2A and 2B are partial schematic views of a load name entry plate and a vertical load name entry plate support, wherein FIG. 2A is a front view and FIG. 2B is a cross-sectional view taken along line AA ′ in FIG.
FIG. 3 is a partial schematic view of a load name entry plate, upper left and upper right load name entry plate support, and lower left and lower right load name entry plate support in a second embodiment of a distribution board according to the present invention. It is a figure, (a) is a front view, (b) is BB 'arrow sectional drawing of (a), (c) is a bottom view.
4A and 4B show a conventional distribution board, in which FIG. 4A is a front view with the distribution board door removed and wiring oil attached, and FIG. 4B with the distribution board door and wiring oil removed. FIG.
[Explanation of symbols]
1 .... distribution panel 2 .... main body 10 .... main circuit breaker 11 .... branch breaker 12 .... charging section 13 .... load name writing board 15 .... operating section 16 .... wiring oi 17 ··· Windows, 18 · · Copper bar, 25 · · Upper load name entry plate support, 25L · · Upper left load name entry plate support, 25R · · Upper right load name entry plate support, 27 · · · Lower Load name entry plate support, 27L ... Lower left load name entry plate support, 27R ... Lower right load name entry plate support, 29 ... Holding part, 30 ... Knob part, 31 ... Claw piece, 32 .. Pushing piece, 33 .. Arrangement port, 34 .. Copper bar support.

Claims (4)

Among the charging parts extending from the main breaker to each branch breaker, the front of the charging part extending up and down to connect the branch breaker is a load name entry plate that can enter the name of the load connected to the branch breaker. Covering and providing a window that matches the load name entry plate to the wiring oi that covers other than the operation part of the equipment installed in the distribution board, with the wiring oi attached, exposing the load name entry plate, Or, it is a load name entry plate mounting structure of a distribution board that can be seen through,
A load name entry plate supporting means provided with a holding portion for holding both upper and lower ends of the load name entry plate is projected from the bottom of the distribution board, and the holding portion pushes the load name entry plate forward. A load name entry plate mounting structure for a distribution board, comprising: a piece and a claw piece that is locked to the load name entry plate to prevent popping out due to the pressure of the pushing piece. The load name writing plate support means according to claim 1, wherein the load name writing plate support means is elastically deformable, and the load name writing board support means can be deformed to release the locking of the load name writing board by the claw pieces. Construction. 2. At least one of the holding portions provided at both upper and lower ends of the load name writing plate has two sets of push pieces and claw pieces, and only one of the load name writing plates can be unlocked. 2. Load name entry plate mounting structure described in 2. The load name entry plate mounting structure according to any one of claims 1 to 3, wherein the load name entry plate support means is also a support for the charging unit.

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