JP4746512B2 - Distribution board - Google Patents

Description

  The present invention relates to a distribution board.

  Conventionally, there has been a distribution board A in which a plurality of branch breakers 3 are connected to a main bar 7 via screws 23 as shown in FIG. This distribution board A is provided with a substantially box-shaped board body 1 having an open front side, and a lid 2 is attached to the front side. Also, a main breaker 8 and a plurality (two in FIG. 9) of branch breakers 3 are arranged inside the panel body 1. The main breaker 8 is fixed to the mounting base 10, and each output terminal 8 c is connected to a plurality (three in FIG. 9) of main line bars 7 via the conductive members 13. Each branch breaker 3 is fixed to the mounting base 21, and each input terminal 3 b is connected to the three main bars 7 through conductive members 22 a to 22 c having different lengths. The conductive members 22 a to 22 c and the main bar 7 are connected to each other through screws 23.

  In this distribution board A, each branch breaker 3 is connected to the trunk bar 7 via the conductive members 22a to 22c, and each conductive member 22a to 22c and each trunk bar 7 are connected via the screw 23. Therefore, it is necessary to provide a screw insertion hole (not shown) for inserting the screw 23 into the main bar 7. Moreover, in order to connect each electrically-conductive member 22a-22c and each trunk bar 7, it is necessary to fasten the screw | thread 23, There existed a problem that a process increased and workability | operativity was bad.

Therefore, in order to improve workability, a distribution board in which a plurality of branch breakers are connected to a main bar by a plug-in method has been proposed (for example, see Patent Document 1). This distribution board is provided with a substantially box-shaped board body whose front side is open, and a main breaker and a plurality of branch breakers are arranged inside the board body. Further, a plurality of trunk bars are arranged inside the board body so that the width direction thereof is the depth direction of the board body, and each trunk bar is connected to each output terminal of the main breaker. Furthermore, each branch breaker is attached to a plug-in adapter having a plurality of plugs for electrically connecting between each input terminal of the branch breaker and the corresponding trunk bar on the back side. By pressing from the front side of the main body, each plug is inserted and connected to the corresponding main bar, and each input terminal of the branch breaker and the corresponding main bar are electrically connected via the plug.
Japanese Patent Laying-Open No. 2005-158420 (pages 3 to 4 and FIGS. 1 to 10)

  In the distribution board shown in Patent Document 1 described above, the trunk bar is arranged so that the width direction is the depth direction of the board body. Therefore, when the power receiving capacity is large, the width dimension of the trunk bar is large. Thus, there is a problem that the depth dimension of the board body is increased.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a distribution board with improved workability and reduced depth.

  The invention according to claim 1 is arranged on the front side of the plurality of main bars, the plurality of main bars being arranged so that the thickness direction is the depth direction of the box and extending in a direction perpendicular to the depth direction of the box. And a plurality of plug-in connecting members that are respectively connected to a plurality of input terminals of the branch breaker and electrically connect between the input terminals and the corresponding main bars. Are arranged at different heights in the depth direction of the box and on the back side of the branch breaker, and can be connected to the corresponding main bar by sliding the branch breaker along the width direction of the main bar. The receiving blade is provided on each plug-in connecting member.

  The invention of claim 2 is characterized in that a plurality of main bars are arranged side by side along the width direction of the main bars.

  The invention according to claim 3 divides the insulating breaker mounting base in which a plurality of plug-in connecting members are attached and the insertion holes through which the front end side of the tool can be inserted are provided at both end sides between the plurality of main bars. It is attached to the back side of the breaker, has a mounting surface along the width direction of the main bar on both sides with a plurality of main bars in between, and a breaker mounting base is mounted on the front side of the mounting surface The fixing member is provided, and the fixing member is provided with an abutting portion that makes contact with the tip end side of the tool inserted through the insertion hole in a state where the breaker mounting base is mounted on the mounting surface and forms a fulcrum. And

  The invention according to claim 4 is a state in which fixing means for fixing the breaker mounting base at fixed intervals along the extending direction of the main bar is provided on the mounting surface, and the breaker mounting base is fixed using the fixing means A feature is that a notch portion is provided at a portion overlapping the insertion hole of the breaker mounting base.

  According to the first aspect of the present invention, since the plurality of main bars are arranged such that the thickness direction thereof is the depth direction of the box, there is an effect that the depth dimension of the box can be reduced. If the width of the main bar increases as the power receiving capacity increases, the depth of the box increases according to the conventional example, but multiple main bars are arranged at different heights in the depth direction of the box. By doing so, there is an effect that the main bars do not come into contact with each other and an increase in the depth dimension of the box can be suppressed.

  According to the invention of claim 2, since the plurality of main bars are arranged side by side along the width direction of the main bar, the interval between the main bars in the depth direction of the box can be reduced. There is an effect that the depth dimension of can be further reduced.

  According to the third aspect of the present invention, since the abutting portion with which the tip end side of the tool abuts is provided on the fixing member, the tool is inserted into the insertion hole on one side in a state where the breaker mounting base is mounted on the mounting surface of the fixing member. When the force is applied through the tool with the tip side of the tool inserted and the tip side of the tool abutted against the abutting part, the abutting part becomes a lever for the lever and the breaker mounting base slides along the mounting surface. To do. At this time, since the plug-in connecting member also slides in accordance with the breaker mounting base, there is an effect that each receiving blade can be easily inserted and connected to the corresponding main bar. In addition, if the tool tip is inserted into the insertion hole on the other side and force is applied through the tool with the tool tip in contact with the contact part, the contact part will serve as a fulcrum for mounting the breaker The table slides in the opposite direction along the mounting surface. At this time, since the plug-in connecting member slides along with the breaker mounting base, there is an effect that the connection state between each receiving blade and the main bar can be easily released. Therefore, each receiving blade of the plug-in connection member of the plurality of branch breakers and the corresponding main bar can be easily inserted and removed with a small force, and workability can be improved.

  According to invention of Claim 4, the fixing means for fixing a breaker mounting base at a fixed space | interval along the extending direction of a main bar is provided in the mounting surface of a fixing member, and also using this fixing means With the breaker mounting base fixed, a notch is provided in the part that overlaps the insertion hole of the breaker mounting base, and the tip end side of the tool cannot be inserted unless the insertion hole is aligned with the position of the notch. By aligning the hole with the position of the notch portion, there is an effect that the breaker mounting base can be fixed to the fixing member using the fixing means in a state where the breaker mounting base is accurately positioned. Moreover, since the breaker mounting base can be easily fixed to the fixing member by aligning the insertion hole with the position of the notch, there is an effect that workability can be improved.

  This embodiment will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 4, and the front of FIG. Accordingly, the right side of FIG. 1 is the rear side.

  The distribution board A of the present embodiment is attached to the wall surface so that the vertical direction defined in FIG. 4 is aligned with the vertical direction of the construction surface (for example, a wall surface), as shown in FIG. 1 and FIG. A substantially box-shaped board main body 1 having an open side, a lid 2 attached to the front side of the board main body 1, a main breaker 8 disposed inside the board main body 1 and a plurality (two in FIG. 4). A branch breaker 3, a main breaker 8, and a plurality of (three in FIG. 4) main bars 7 that electrically connect the branch breakers 3 are provided.

  As shown in FIGS. 1 and 4, the panel body 1 is formed in a vertically long, substantially box shape with the front side opened and extending in the vertical direction. A pair of attachment members 9, 9 having a letter shape and extending in the vertical direction of the board body 1 are attached to the board body 1 via bolts 15 protruding from the bottom surface of the board body 1. Further, a lid body 2 that pivotably opens and closes the opening portion is provided at the opening portion on the front surface side (left side in FIG. 1) of the panel body 1. Here, the board body 1 and the lid body 2 constitute a box.

  As shown in FIG. 4, each mounting member 9 is provided with a plurality of screw holes 9 a at regular intervals along the vertical direction, and a substantially rectangular plate-shaped mounting base is provided above the mounting members 9, 9. 10 is attached via a screw 17. Further, two horizontally long and substantially rectangular plate-like attachment bases 11 and 11 are attached to the lower position of the attachment base 10 via screws 17 at a predetermined interval. Furthermore, a pair of fixing members 6, 6 extending in the vertical direction are attached between both the mounting bases 11, 11 so as to face each other in the vicinity of the inside of the both mounting members 9, 9.

  As shown in FIGS. 1 and 2, each fixing member 6 has a support piece 6a formed in a substantially L shape, and the tip end side of the support piece 6a is parallel to the mounting base 11 and is bent outward. And the placed mounting piece 6b. Each mounting piece 6b is provided with a plurality of screw holes 6c at regular intervals along the vertical direction as shown in FIG. 4, and an arcuate shape between the adjacent screw holes 6c, 6c. A notch 6d is provided at the outer edge of each mounting piece 6b. Here, the screw hole 6c and the screw 17 screwed into the screw hole 6c constitute fixing means for fixing the breaker mounting base 4 described later. Insulating attachment members 12, 12 formed in a horizontally long substantially rectangular plate shape are attached to both ends of the fixing members 6, 6 via screws 17, respectively. A plurality of (three in FIG. 2) step portions 12a to 12c formed so that the height gradually decreases from the right side to the left side (upper side to lower side in FIG. 2) on the rear side (right side in FIG. 2). Is provided.

  Next, the main breaker 8 will be described with reference to FIG. The main breaker 8 is formed in a vertically long rectangular parallelepiped shape, and an internal contact (not shown) is turned on / off substantially at the center on the front side to conduct between each input terminal 8b described later and a corresponding output terminal 8c. Alternatively, a knob 8a for opening is provided. A plurality (three in FIG. 4) of input terminals 8b and output terminals 8c are provided at both ends in the vertical direction with the knob 8a in between, and each input terminal 8b is connected to a primary power source (not shown). The conductive member 14 is connected to each output terminal 8c and a conductive member 13 connected to the main bar 7 described later. The main breaker 8 is fixed to the mounting base 10 via, for example, screws.

  Here, the main bar 7 will be described. Each main bar 7 is formed in an elongated rectangular plate shape as shown in FIGS. 1, 2, and 4, and the thickness direction is the depth direction of the panel body 1, and the depth direction of the panel body 1 is They are arranged at different heights. Further, the main bars 7 are arranged side by side in a state where the longitudinal direction thereof is the vertical direction and is spaced apart from each other in the left-right direction, and the respective conductive members 13 are connected via screws 16 on the upper end side. Are connected to each. Further, as shown in FIGS. 2 and 4, each main bar 7 is fixed to each stepped portion 12 a to 12 c of the mounting member 12 via screws 17 at both ends in the vertical direction.

  Thus, by disposing the main bar 7 so that the thickness direction thereof is the depth direction of the board main body 1, the depth dimension of the board main body 1 can be reduced. Further, by disposing the main bars 7 at different heights in the depth direction of the panel main body 1 and at a certain interval in the horizontal direction of the panel main body 1, the main bars 7 are arranged in the depth direction of the panel main body 1. Since the distance between the main bars 7 can be reduced, the depth dimension of the panel body 1 can be further reduced. In addition, by arranging the main bars 7 at different heights, even when the width of the main bar 7 increases as the power receiving capacity increases, the adjacent main bars 7 are arranged without contacting each other. Can be set.

  Next, the branch breaker 3 will be described. The branch breaker 3 is formed in a substantially rectangular parallelepiped shape as shown in FIGS. 1 to 4 and corresponds to each input terminal 3b to be described later by turning on / off an internal contact (not shown) at a substantially central portion on the front side. A knob 3a is provided for conducting or opening between the output terminals 3c. In addition, a plurality of (three in FIG. 4) input terminals 3b and output terminals 3c are provided on both ends in the left-right direction with the knob 3a in between, and each input terminal 3b has a plug-in connection member to be described later. 26 to 28 are connected to respective output terminals 3c with electric wires (not shown).

  As shown in FIG. 4, the branch breaker 3 is attached to a breaker mounting base 4 having a rectangular shape in plan view. The breaker mounting base 4 has an insulating mounting base 4a that is formed in an L shape in cross-sectional view and is integrally provided with protruding pieces at both ends in the left-right direction (vertical direction in FIG. 2). As shown in FIG. 4, two horizontally long insertion holes 4e are provided at both ends of each. A pair of screw insertion holes 4f and 4f are provided on both sides in the vertical direction with the insertion holes 4e and 4e in between, as shown in FIG. Furthermore, connection pieces 4b to 4d formed using a conductive material are attached to the right side (upper side in FIG. 2) of the mounting base 4a via, for example, screws. Each of the connection pieces 4b to 4d has a connection portion 4g connected to the branch breaker 3 on one end side, and the other end side on the rear surface side (right side in FIG. 2) through an insertion hole 4h provided on the mounting base 4a. It protrudes. In addition, receiving blades 5 formed in a substantially U shape in cross section are attached to the distal end sides of the connecting members 4b to 4d protruding to the rear surface side, and the distal end sides of the receiving blades 5 are spaced from each other. Is bent in a substantially letter shape so as to be slightly narrower than the thickness of the main bar 7. Each receiving blade 5 has a mounting pitch of adjacent receiving blades 5 in the left-right direction (up and down direction in FIG. 1) so that it is the same size as an mounting pitch of adjacent main bars 7 (in FIG. 1). In the left-right direction), the main bars 7 are arranged at the same height. In addition, between the adjacent connection pieces 4b and 4c and the connection pieces 4c and 4d, as shown in FIG. 3, the insulation wall 25 for ensuring a spatial distance and creepage distance is each provided. Here, the connection pieces 4b to 4d and the receiving blade 5 constitute plug-in connection members 26 to 28, respectively, and the plug-in connection members 26 to 28 and the attachment base 4a constitute the breaker attachment base 4. Yes.

  Here, a method of attaching the branch breaker 3 to the breaker mounting base 4 will be described. First, the branch breaker 3 is moved from the left direction (the lower side in FIG. 1) to adjust the position of each input terminal 3b to the position of each connection portion 4g of the corresponding connection piece 4b to 4d. Then, the breaker 3 is fixed to the mounting base 4a via the screws 19, and the screws 18 are fastened to connect the connection portions 4g corresponding to the respective input terminals 3b, whereby the attachment of the branch breaker 3 is completed.

  Further, a method for attaching and removing the breaker mounting base 4 to which the branch breaker 3 is fixed to the fixing member 6 will be described with reference to FIGS. First, when mounting, as shown in FIG. 6 (a), the breaker mounting base 4 is mounted on the mounting pieces 6b and 6b of both fixing members 6 and 6, and one end side of the breaker mounting base 4 (FIG. 6 ( The insertion holes 4e and 4e on the left side of a) are aligned with the notches 6d and 6d of the mounting piece 6b. At this time, each receiving blade 5 is positioned on the right side with respect to the corresponding main bar 7 (see FIG. 5A). Next, as shown in FIGS. 5 (a) and 5 (b), the tip 20a of the tool 20 is inserted into the insertion hole 4e on one end side (left side of FIG. 5 (a)) and the outer side (FIG. 5 (b)). When a force is applied to the tool 20 toward the left side of), the tip 20a abuts against the side surface of the support piece 6a of the fixing member 6 so that the contact portion between the tip 20a and the support piece 6a serves as a lever. Then, a leftward force is applied to the breaker mounting base 4, and the breaker mounting base 4 slides leftward along the upper surface of the mounting piece 6b. At this time, each receiving blade 5 also slides leftward in accordance with the breaker mounting base 4, so that each receiving blade 5 a is inserted and connected to the corresponding main bar 7, and corresponds to each input terminal 3 b of the branch breaker 3. The main bar 7 is electrically connected to each other. Moreover, as shown in FIG.6 (b), the four insertion holes 4e of the breaker mounting base 4 and the corresponding notch 6d each overlap. When the screw 17 is inserted into the screw insertion hole 4f of the breaker mounting base 4 and screwed into the screw hole 6c of the mounting piece 6b as shown in FIGS. 4 is fixed to both fixing members 6 and 6, and attachment is completed.

  On the contrary, when removing, after removing the screw 17, the tip 20 a of the tool 20 is inserted into the right insertion hole 4 e as shown in FIG. 5 (d), and the outside (the right side in FIG. 5 (e)). When a force is applied to the tool 20 toward the direction, a force opposite to that when the breaker mounting base 4 is attached, that is, a rightward force is applied, and the breaker mounting base 4 slides rightward along the upper surface of the mounting piece 6b. To do. At this time, each receiving blade 5 also slides to the right according to the breaker mounting base 4, so that the connection state between each receiving blade 5a and the corresponding main bar 7 is released. Here, an abutting portion serving as a fulcrum of the lever is configured from a portion of the side surface of the support piece 6 a of each fixing member 6 that abuts on the tip portion 20 a of the tool 20.

  In the distribution board A of the present embodiment, each receiving blade 5 can be easily moved to the corresponding main bar 7 simply by sliding the breaker mounting base 4 along the upper surface of the mounting piece 6b using the principle of lever. And can be easily released. Further, the tip 20a of the tool 20 cannot be inserted into the insertion hole 4e unless the insertion hole 4e of the breaker mounting base 4 is aligned with the position of the notch 6d of the mounting piece 6b. The breaker mounting base 4 can be accurately positioned by matching the position of the portion 6c, and can be easily fixed to both the fixing members 6 and 6. Accordingly, each receiving blade 5 and the corresponding main bar 7 can be easily inserted and removed, and a plurality of breaker mounting bases 4 can be easily attached, so that workability can be improved.

  In this embodiment, the example in which two branch breakers 3 are used has been described. However, the number of branch breakers 3 to be used is not limited to this embodiment, and may be one or three or more. . Further, the number of main bars 7 to be used is not limited to this embodiment, and may be appropriately designed according to the purpose of use.

  Further, in the present embodiment, as shown in FIGS. 7 and 8, the main bars 7 ′ are arranged at different heights in the depth direction of the panel main body 1 and at the same position in the left-right direction of the panel main body 1. May be.

  In this distribution board A, as shown in FIG. 7, each main bar 7 'has a smaller thickness and a larger width than the main bar 7 described in FIG. 7 in the left and right direction) and are disposed at substantially the same position in the left and right direction (up and down direction in FIG. 7). The main bar 7 'is formed to have substantially the same cross-sectional area as the main bar 7 by reducing the thickness dimension and increasing the width dimension, and a necessary size for the power receiving capacity is secured. .

  Further, as shown in FIG. 8, the mounting member 12 has a projecting portion 12a projecting on the rear side (the right side in FIG. 8), and a main bar 7 'is disposed at a substantially central position of the projecting portion 12a. A groove is provided for this purpose. Further, a plurality of (three in FIG. 8) sandwiching members 24 provided with grooves for disposing the main bar 7 ′ are provided on the rear surface side of the projecting portion 12a. It is connected through. As shown in FIG. 8, each main bar 7 'is disposed in a groove formed by the projecting portion 12a and the pinching member 24 or in a groove formed by the adjacent pinching members 24, 24, and left and right It arrange | positions in the substantially same position in a direction (up-down direction of FIG. 8). Since the three pinching members 24 are connected to the rear surface side of the projecting part 12a, the depth dimension of the panel body 1 is increased, but the width dimension of the main bar 7 'is increased and the thickness dimension is decreased. By doing so, an increase in the depth dimension of the panel main body 1 can be suppressed.

  Furthermore, each receiving blade 5 is attached to the front end side of the connection pieces 4b ′ to 4d ′ protruding to the rear surface side (right side in FIG. 8) through the insertion hole 4h provided in the mounting base 4a. Has the same height as the corresponding main bar 7 'in the front-rear direction (left-right direction in FIG. 7), and the three receiving blades 5 are arranged at substantially the same position in the left-right direction (up-down direction in FIG. 7). Yes. Therefore, by sliding the breaker mounting base 4 along the upper surface of the mounting piece 6b in the same manner as described in FIG. 5, each receiving blade 5 is inserted and connected to the corresponding main bar 7 ′, and branched. Each input terminal 3b of the breaker 3 is electrically connected to the corresponding main bar 7 '. Here, the connection pieces 4b 'to 4d' and the receiving blade 5 constitute plug-in connection members 29 to 31, respectively.

  In this distribution board A, each main bar 7 ′ is disposed at different heights in the depth direction of the panel body 1 with the thickness direction being the depth direction of the panel body 1. The dimensions can be reduced. Further, even when the power receiving capacity is increased and the width dimension of the main bar 7 'is increased, the adjacent main bars 7' can be disposed without contacting each other. Furthermore, the width dimension of the panel main body 1 can be made smaller than when the main bars 7 are arranged side by side in the left-right direction (see FIG. 1).

It is the top view which fractures | ruptures partially the power distribution board of this embodiment seen from the lower surface side. It is a top view which can be partially broken which shows the state before attaching a breaker mounting base to the electricity distribution board same as the above. (A) is the top view which fractures | ruptures partially the breaker mounting base used for a distribution board same as the above seen from the upper surface side. (B) is the top view which fractures | ruptures partially the breaker mounting base used for a distribution board same as the above seen from the lower surface side. It is a front view which shows the state which removed the cover body of the distribution board same as the above. (A)-(e) is a partially broken state figure which shows the state which attaches a breaker mounting base to a fixing member in the distribution board same as the above. (A)-(c) is the state figure which fractures | ruptures partially the state which looked at the state which attaches a breaker mounting base to a fixing member in the electricity distribution board same as the above. It is a top view which fractures | ruptures partially the other electricity distribution panel same as the above seen from the lower surface side. It is a top view which can be partially broken which shows the state before attaching a breaker mounting base to the other distribution board same as the above. (A) is a front view which shows the state which removed the cover body of the distribution board of a prior art example. (B) is sectional drawing which looked at the same from the lower surface side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel body 2 Cover body 3 Branch breaker 3b Input terminal 4 Breaker mounting base 4b Connection piece 4c Connection piece 4d Connection piece 4e Insertion hole 5 Receiving blade 6 Fixing member 6b Mounting piece (mounting surface)
6c Screw hole 6d Notch 7 Main bar 26 Plug-in connection member 27 Plug-in connection member 28 Plug-in connection member A Distribution board

Claims (4)

  A plurality of main bars disposed in such a manner that the thickness direction is a depth direction of the box and extending in a direction perpendicular to the depth direction of the box; a branch breaker disposed on the front side of the plurality of main bars; A plurality of plug-in connection members that are respectively connected to a plurality of input terminals of the branch breaker and electrically connect each of the input terminals to the corresponding main bar, wherein the plurality of main bars are in the depth direction of the box Receiving blades that are different in height from each other and disposed on the back side of the branch breaker, and are inserted and connected to the corresponding main bar by sliding the branch breaker along the width direction of the main bar. A distribution board characterized in that each of the plug-in connecting members is provided.   2. The distribution board according to claim 1, wherein the plurality of main bars are arranged side by side along the width direction of the main bars.   A plurality of plug-in connecting members are attached, and an insulating breaker mounting base is provided on the back side of the branch breaker. A fixing member that is mounted and has a mounting surface along the width direction of the main bar on both sides of the plurality of main bars, and the breaker mounting base is mounted on the front side of the mounting surface The breaker mounting base is placed on the placement surface and abuts on the tip side of the tool inserted through the insertion hole, and a contact portion that forms a fulcrum is provided on the fixing member. The distribution board according to claim 1, wherein the distribution board is one of the features.   The mounting surface is provided with fixing means for fixing the breaker mounting base at regular intervals along the extending direction of the main bar, and the breaker mounting base is fixed in a state where the breaker mounting base is fixed using the fixing means. The distribution board according to claim 3, wherein a notch portion is provided in a portion overlapping the insertion hole.

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