JP2011036036A - Distribution panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel having improved workability without deteriorating external appearance. <P>SOLUTION: The distribution panel A includes: a case body 1 in which an opening 1b is provided on a surface and a trunk breaker 3 and a plurality of branch breakers 4 are housed in the inside; and a pair of two intermediate doors 2, 2 which are supported by a frame 1a around the opening 1b on the surface of the case body 1 and openably block the opening 1b. The case body 1 includes a U-shaped wiring groove 1d formed continuously from the frame 1a to an upper surface 1c. Further, the distribution panel A includes a blind member 5 detachably attached to the case body 1 so as to block a portion where the wiring groove 1d is formed on the frame 1a, and a wire-guiding portion of the distribution panel A is hidden by the blind member 5, thereby suppressing deterioration in external appearance. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a distribution board.

  Conventionally, there has been provided a distribution board in which a main breaker and a plurality of branch breakers are housed in a casing as an internal unit (see, for example, Patent Document 1). In this distribution board, wiring holes are provided on the upper side surface or the lower side surface of the casing, and electric wires from the load side are inserted into the casing through the wiring holes and connected to the respective breakers.

Japanese Patent Laying-Open No. 2003-164021 (paragraph [0018] and FIG. 2)

  In recent years, the number of branch circuits (branch breakers) housed in one distribution board tends to increase, and accordingly, the number of electric wires connected to each branch circuit also tends to increase. Therefore, in the distribution board shown in the above-mentioned Patent Document 1, the number of electric wires passing through the wiring holes increases, so that it takes time for the wiring work.

  The present invention has been made in view of the above problems, and an object thereof is to provide a distribution board with improved workability without deteriorating the appearance.

  According to the first aspect of the present invention, an opening is provided in the front surface, and a case main body in which a breaker is accommodated, and a frame portion around the opening on the front surface of the case main body so that the opening can be freely opened and closed. The case body is provided with a U-shaped wiring groove formed continuously from the frame portion to the side surface portion, so that the formation portion of the wiring groove is closed at the frame portion. A blindfold member that is detachably attached to the case body is provided.

  According to the second aspect of the present invention, an opening is provided in the front surface, and a case main body in which a breaker is accommodated, and a frame portion around the opening on the front surface of the case main body so that the opening can be freely opened and closed. The case body is provided with a U-shaped wiring groove continuously formed from the frame portion to the side surface portion, and the open end side of the wiring groove formed on the side surface portion is provided on the case body. An electric wire holding member that is detachably attached to the side surface portion so as to be closed is provided.

  The invention of claim 3 is characterized in that a plurality of fixing means for fixing the electric wire holding member are provided on the side surface portion in the front-rear direction.

  According to the first aspect of the present invention, when inserting into the distribution board, it is only necessary to insert the electric wire into the wiring groove from the front side, so that the trouble of inserting the electric wire into the wiring hole can be saved as compared with the conventional example. As a result, the workability can be improved. In addition, by concealing the part of the line that enters the distribution board with a blindfold member, deterioration of the appearance can be suppressed, and furthermore, since the open end of the wiring groove is fixed with the blindfold member, the force from the electric wire is applied to the edge portion In addition, there is an effect that the wiring groove can be prevented from being deformed over time.

  According to the invention of claim 2, when inserting into the distribution board, it is only necessary to insert the electric wire into the wiring groove from the front side, so that the trouble of inserting the electric wire into the wiring hole can be saved as compared with the conventional example. As a result, the workability can be improved. In addition, since the electric wire can be held by the electric wire holding member, it is possible to prevent the electric wire from being applied to the breaker and the electric wire from coming off, and the open end of the wiring groove is fixed by the electric wire holding member. Therefore, it is possible to prevent the wiring groove from being deformed over time due to the force applied to the edge portion.

  According to invention of Claim 3, since the attachment position of an electric wire holding member can be changed, there exists an effect that an electric wire can be hold | maintained reliably irrespective of the wire diameter and the number of wires.

The distribution board of Embodiment 1 is shown, (a) is a front view, (b) is a top view. The state which removed the inner door from the same is shown, (a) is a front view, (b) is a top view. The state which removed the inner door and the blindfold member from the same as the above is shown, (a) is a front view, (b) is a top view. (A)-(d) is a state figure which shows the state which integrated the electric wire into the same as the above. It is a principal part detail drawing same as the above. The state which removed the inner door from the distribution board of Embodiment 2 is shown, (a) is a front view, (b) is a top view. (A), (b) is a state figure which shows the state which integrated the electric wire into the same as the above. (A), (b) is a principal part detailed drawing same as the above. The other example same as the above is shown, (a) is a front view with the inner door removed, and (b) is a top view. (A), (b) is principal part detail drawing of the other example same as the above.

  Hereinafter, embodiments of a distribution board according to the present invention will be described with reference to the drawings. The distribution board according to the present invention is used as, for example, a non-residential distribution board installed in a building or factory, and a main breaker or a plurality of branch breakers housed therein are turned on as necessary. / Turned off. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 1A, and the front of FIG. Accordingly, the upper side of FIG. 1B is the rear surface.

(Embodiment 1)
FIG. 1A is a front view of a distribution board A according to the present embodiment. The distribution board A includes a case main body 1 provided with a vertically long rectangular opening 1b on the front surface, and the inside of the case main body 1. A main breaker 3 and a plurality of branch breakers 4 housed in the case body, and a pair of two which are pivotally supported at both ends in the left-right direction of the case body 1 so as to be openable and closable and cover the front side of the main breaker 3 and the branch breaker 4 Doors (door bodies) 2, 2, a blindfold member 5 to be described later, and an outer door, which is not shown in the figure, but is disposed so as to be openable and closable in a frame portion 1 a to be described later. In addition, the well-known thing is employ | adopted about the main breaker 3 and the branch breaker 4, and it abbreviate | omits about detailed description.

  The case body 1 has a vertically long rectangular box shape as shown in FIGS. 2 (a) and 3 (a), and a cross-sectional shape is formed in a crank shape around the opening 1b on the front surface. A frame (see FIG. 5) 1a is provided over the entire circumference. Further, the case body 1 has a substantially U-shaped wiring groove 1d (FIGS. 1B, 2B, and 3) formed continuously from the upper side surface (side surface) 1c to the frame 1a. (See (b)) is provided in communication with the opening 1b. That is, in the distribution board A of this embodiment, it is possible to enter the case body 1 simply by inserting the electric wire 18 from the front side into the wiring groove 1d.

  Further, as shown in FIGS. 2A and 3A, a plurality of vertically long fixed bases 6 (four in the present embodiment) are arranged on the back surface 1e of the case body 1 in the left-right direction. One set of two sets constitutes one fixed base. A support base 8 for mounting the main breaker 3 is screwed to the upper position of the fixing bases 6 and 6 arranged on the right side of the back surface portion 1e, and the branch breaker 4 is positioned below the support base 8. Mounting bases 9 and 9 for mounting are fixed in the vertical direction with screws. A plurality of branch breakers 4 are attached to each mounting base 9, and as a result, the plurality of branch breakers 4 are arranged side by side in the vertical direction (see FIG. 2 (a) and FIG. 3 (a)). .

  On the other hand, a support base 10 for mounting the three-pole terminal block 11 is screwed to the upper position of the fixing bases 6 and 6 arranged on the left side of the back surface portion 1e. The mounting bases 9, 9 for mounting the branch breaker 4 are screwed in a line in the vertical direction. A plurality of branch breakers 4 are attached to each mounting base 9, and as a result, the plurality of branch breakers 4 are arranged in the vertical direction.

  In addition, one end side of a metal connection bar 12 having a different length from each other is electrically connected to the secondary terminal of the three poles of the main breaker 3, and the other end side of each connection bar 12 is A plate-like conductive bar 13 extending in the vertical direction is electrically connected. Each conductive bar 13 is disposed at a different height position in the front-rear direction (direction perpendicular to the paper surface in FIG. 2A), and in a state where each branch breaker 4 is attached to the attachment base 9, Three plug-in adapters (not shown) provided on the side surface of each branch breaker 4 and the corresponding conductive bar 13 are electrically connected to each other.

  On the other hand, one end side of a metal connection bar 14 having a different length from each other is electrically connected to the three-pole secondary terminal of the terminal block 11, and the other end side of each connection bar 14 is Plate-like conductive bars 15 extending in the vertical direction are electrically connected. Each conductive bar 15 is disposed at a different height position in the front-rear direction (direction perpendicular to the paper surface in FIG. 2A), and in a state where each branch breaker 4 is attached to the attachment base 9, Three plug-in adapters (not shown) provided on the side surface of each branch breaker 4 and the corresponding conductive bar 15 are electrically connected to each other.

  And in the distribution board A of this embodiment, as shown to Fig.2 (a) and FIG.3 (a), all the branch breakers 4 orient | assigned the secondary side (load side) terminal to the center side. Arranged in a state. Here, the secondary side terminal of the main breaker 3 is connected to the primary side terminal of the terminal block 11 via, for example, an electric wire (not shown), or an electric wire from the load side (not shown). Are connected directly.

  As shown in FIG. 1A, the left and right dimensions of each middle door 2 are set to be approximately half of the left and right dimensions of the opening 1 b of the case body 1, and the middle doors 2 and 2 constitute a so-called sound door. ing. The right inner door 2 is pivotally supported by a shaft portion 7 (see FIG. 2A) at the right end of the case body 1 so as to be freely opened and closed, and a portion corresponding to the main breaker 3 is provided with a main breaker 3. An operation window 2 a that exposes the functional surface is provided, and an operation window 2 b that exposes the functional surface of each branch breaker 4 is provided at a portion corresponding to each branch breaker 4. Therefore, in the distribution board A of the present embodiment, the main breaker 3 and the branch breaker 4 can be turned on / off even when the middle door 2 is closed.

  The left inner door 2 is pivotally supported by a shaft 7 (see FIG. 2A) at the left end of the case body 1 so that it can be opened and closed. An operation window 2b that exposes the functional surface of the branch breaker 4 is provided.

  Here, in the distribution board A of the present embodiment, the wiring groove 1d and the opening 1b are provided in the case body 1 so as to communicate with each other as described above. Since the electric wire 18 can be inserted into the wiring breaker, the wiring work is facilitated. However, as shown in FIGS. 4A and 4B, the incoming portions of the electric wires 18 connected to the branch breakers 4 can be seen from the front. The appearance will be damaged. Therefore, in the present embodiment, the blindfold member 5 is attached to the case main body 1 so as to block the formation site of the wiring groove 1d in the frame portion 1a for the purpose of suppressing deterioration of the appearance.

  As shown in FIG. 5, the blindfold member 5 is formed in a crank shape so as to follow the shape of the frame portion 1a, and its length dimension (left-right dimension) is slightly longer than the notch dimension of the frame portion 1a. Is set to The blindfold member 5 is screwed to the upper side surface portion 1 c using a fixing screw 16, and is screwed to the frame portion 1 a using a fixing screw 17, and is attached to the case body 1. As a result, in a state where the blindfold member 5 is attached to the case main body 1, as shown in FIGS. 4 (c) and 4 (d), the incoming line portion of the electric wire 18 can be concealed, and deterioration in appearance can be suppressed. it can. The blindfold member 5 is detachable from the case body 1 and is attached to the case body 1 after all the electric wires 18 are collectively inserted into the wiring groove 1d.

  Thus, according to the present embodiment, when entering the distribution board A, it is only necessary to insert the electric wire 18 into the wiring groove 1d from the front side, so that it is troublesome to insert the electric wire into the wiring hole as compared with the conventional example. As a result, workability can be improved. Further, by concealing the part of the line that enters the distribution board A by the blind member 5, it is possible to suppress the deterioration of the appearance, and the left and right edges of the wiring groove 1 d are connected by the blind member 5. It is possible to increase the strength of 1c, and as a result, it is possible to prevent the wiring groove 1d from being deformed over time due to the force from the electric wire 18 being applied to the edge portion.

  Further, when the branch breaker 4 is arranged so that the secondary terminal is on the center side as in the distribution board A of the present embodiment, the work space for connecting the electric wires 18 from the load side is widened. Since it can be removed, it is easy to put in a hand, and as a result, workability is further improved. In addition, when the branch breaker 4 is arranged so that the secondary side terminal of the branch breaker 4 is on the outside, it is necessary to distribute the electric wires 18 from the load side to the left and right. It can be omitted, and workability is further improved.

(Embodiment 2)
FIG. 6A is a front view of the distribution board A according to the present embodiment. In the first embodiment, the blindfold member 5 for closing the formation site of the wiring groove 1d in the frame portion 1a is provided. Then, the electric wire holding member 19 for holding the electric wire 18 inserted in the wiring groove 1d is provided. In addition, about another structure, it is the same as that of Embodiment 1, the same code | symbol is attached | subjected to the same component and description is abbreviate | omitted.

  The distribution board A of the present embodiment holds the case main body 1, the main breaker 3 and the plurality of branch breakers 4, an inner door and an outer door (both not shown), the blindfold member 5, and the electric wires 18. In the case body 1, a substantially U-shaped wiring groove 1 d (FIG. 6 (FIG. 6 (FIG. 6A) formed continuously from the upper side surface portion 1 c to the frame portion 1 a in the same manner as in the first embodiment. b) and FIG. 7B) are provided in communication with the opening 1b. The blindfold member 5 may not be provided.

  As shown in FIGS. 8A and 8B, the electric wire holding member 19 has a horizontally long rectangular plate shape, and has screw insertion holes (not shown) through which fixing screws 20 are inserted at both ends in the longitudinal direction. ) Is provided. On the other hand, screw holes 1f into which the fixing screws 20 are respectively screwed are provided at a plurality of locations along the front-rear direction (vertical direction in FIG. 8B) at both left and right edges of the wiring groove 1d in the upper side surface portion 1c. ing. That is, in this embodiment, the attachment position to the upper side surface part 1c of the electric wire holding member 19 can be changed by changing the screw hole 1f to be used. Here, the fixing means is constituted by the screw hole 1f.

  Then, as shown in FIG. 7A, after the electric wires 18 from the load side are inserted into the wiring grooves 1d, they are connected to the corresponding branch breakers 4, respectively, and the electric wire holding member 19 is connected to a predetermined portion of the upper side surface portion 1c. When attached to the position, the electric wire 18 is held by the electric wire holding member 19 and the wiring work is completed. At this time, since the electric wire 18 is sandwiched between the electric wire holding member 19 and the rear end edge of the wiring groove 1d (see FIG. 7B), a force from the electric wire 18 is applied to each branch breaker 4. Can be prevented.

  Thus, according to the present embodiment, when entering the distribution board A, it is only necessary to insert the electric wire 18 into the wiring groove 1d from the front side, so that it is troublesome to insert the electric wire into the wiring hole as compared with the conventional example. As a result, workability can be improved. Further, since the electric wire 18 can be held by the electric wire holding member 19, it is possible to prevent the electric wire 18 from being detached due to the force from the electric wire 18 being applied to the branch breaker 4, and further, the electric wire is held between the left and right side edges of the wiring groove 1d. Since it is connected by the member 19, the strength of the upper side surface portion 1c can be increased, and as a result, it is possible to prevent the wiring groove 1d from being deformed over time due to the force from the electric wire 18 being applied to the end edge portion. Furthermore, since the attachment position of the electric wire holding member 19 can be changed, the electric wire 18 can be reliably held regardless of the wire diameter or the number of the electric wires 18.

  In this embodiment, the screw hole 1f is used as the fixing means. However, the fixing means is not limited to this embodiment, and any other means can be used as long as the mounting position of the wire holding member 19 can be changed. There may be.

  Next, FIGS. 9 and 10 show another example of the distribution board A of the present embodiment. In the distribution board A shown in FIGS. 7 and 8 described above, the wire holding member 19 and the wiring groove 1d are shown. The electric wire 18 is held by sandwiching the electric wire 18 with the rear end edge, but in this example, the binding band 22 is attached to the U-shaped electric wire holding fitting 21 fixed to the peripheral edge of the wiring groove 1d. The electric wire 18 is hold | maintained by fixing the electric wire 18 using. Other configurations are the same as those in the above example, and the same components are denoted by the same reference numerals and description thereof is omitted.

  The distribution board A of this example includes a case main body 1, a main breaker 3 and a plurality of branch breakers 4, an inner door and an outer door (both not shown), an electric wire holding bracket 21 for holding an electric wire 18, It has.

  The wire holding fitting 21 is substantially U-shaped as shown in FIGS. 9A and 9B, and is arranged so that each side portion is along three sides excluding the front side of the wiring groove 1d. ing. Moreover, as shown in FIG. 10A and FIG. 10B, a plurality of through holes 21a are respectively provided in each side portion of the electric wire holding fitting 21, and are inserted into any of the through holes 21a. The electric wire 18 is fixed to the electric wire holding fixture 21 through the binding band 22. As a result, the force from the electric wire 18 can be prevented from being applied to each branch breaker 4 as in the above example.

  Thus, according to this example, since the electric wire 18 can be held by the electric wire holding fixture 21 and the binding band 22, it is possible to prevent the electric wire 18 from coming off due to the force from the electric wire 18 being applied to the branch breaker 4.

DESCRIPTION OF SYMBOLS 1 Case main body 1a Frame part 1b Opening part 1c Upper side part (side part)
1d Wiring groove 2 Middle door (door body)
3 Core breaker (breaker)
4 branch breaker (breaker)
5 Blindfold member A Distribution board

Claims (3)

  A case main body provided with an opening on the front surface and in which a breaker is housed, and a door body supported by a frame around the opening on the front surface of the case main body so as to close the opening freely. The case main body is provided with a U-shaped wiring groove continuously formed from the frame portion to the side surface portion, and the case main body is closed so as to close the wiring groove forming portion in the frame portion. A distribution board comprising a blindfold member that is detachably attached.   A case main body provided with an opening on the front surface and in which a breaker is housed, and a door body supported by a frame around the opening on the front surface of the case main body so as to close the opening freely. The case body is provided with a U-shaped wiring groove formed continuously from the frame portion to the side surface portion so as to close the open end side of the wiring groove formed in the side surface portion. A distribution board comprising an electric wire holding member that is detachably attached to the side surface portion.   The distribution board according to claim 2, wherein a plurality of fixing means for fixing the electric wire holding member are provided on the side surface portion along the front-rear direction.

Images