JP2008182853A - Distribution panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel in which the length of a short direction of an attaching member is shortened. <P>SOLUTION: The distribution panel is constituted so that a trunk switch 2, three elongated conductive bars 5a-5c formed of a conductive material and connected to the secondary side of the trunk switch 2, and a plurality of branched switches 3 provided side by side in the longitudinal direction of the conductive bars 5a-5c and electrically connected to the corresponding conductive bars 5a-5c are accommodated in a panel main body 1. The right branched switches 3 on the right of the conductive bars 5a-5c are disposed so that their longitudinal directions match the upper right direction, and the left branched switches on the left of the conductive bars 5a-5c are disposed so that their longitudinal directions match the upper left direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a distribution board.

Conventionally, a distribution board has been known in which electrical devices such as a main switch and a branch switch are arranged on the front surface of a substantially flat mounting member that is mounted in a direction in which the rear surface faces the wall surface. 1 is disclosed. This distribution board is a vertical distribution board in which the attachment member is attached to the wall surface so that the longitudinal direction (hereinafter referred to as the vertical direction) of the attachment member substantially coincides with the substantially vertical direction. A trunk switch is arranged in the main body. Below the main switch, three strip-shaped conductive bars arranged in parallel in the thickness direction of the mounting member are arranged so that the longitudinal direction thereof substantially coincides with the vertical direction. A plurality of branch switches are arranged in parallel in the longitudinal direction of the conductive bar on both sides in the short direction. The branch switch is a plug-in system that plugs into and connects to a conductive bar and is plugged and connected from both sides in the short direction of the conductive bar so that the longitudinal direction thereof substantially coincides with the short direction of the mounting member. .
JP-A-11-341618

  By the way, in recent years, things other than distribution boards such as shelves and lockers are also placed along the wall surface. For this reason, it is necessary to reduce the ratio of the wall surface of the distribution board in the horizontal direction, and there is a demand for a distribution board with a shorter horizontal length as much as possible even if the vertical length is somewhat larger. It is becoming.

  However, in the above-described conventional example, the branch switch is arranged so that the longitudinal direction of the branch switch substantially coincides with the short direction of the mounting member. Therefore, the length of the mounting member in the short direction is the branch switch. There is a problem that the length in the short direction of the mounting member cannot be shortened.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a distribution board that can shorten the length of the mounting member in the short direction.

  In order to achieve the above object, a first aspect of the present invention provides a plate-like mounting member having a vertical and horizontal length that is mounted in a direction in which the rear surface faces the wall surface, and one end in the longitudinal direction of the mounting member on the front surface of the mounting member. And a plurality of branches arranged in parallel along the longitudinal direction of the mounting member and disposed on the other end side in the longitudinal direction of the mounting member relative to the main switch at the front surface of the mounting member A distribution board comprising a switch, wherein the branch switch is arranged such that its longitudinal direction does not coincide with either the short direction or the long direction of the mounting member.

  The invention according to claim 2 is the invention according to claim 1, wherein the branch switch includes a load connection portion to which an electric wire routed from an external load is connected at one end in the longitudinal direction, and the load connection portion is branched and opened. The mounting member is disposed so as to be located on the outer side with respect to the central axis in the shorter direction of the mounting member than the other end portion in the longitudinal direction of the vessel.

  According to a third aspect of the present invention, in the first aspect of the present invention, the front surface of the mounting member is connected to the secondary terminal of the main switch and has a plurality of conductive members arranged in parallel along the thickness direction of the mounting member. The bar is arranged along the longitudinal direction of the mounting member, and the branch switch has a plug connection portion having a pair of blade receivers inserted and connected from the short direction of the corresponding conductive bar at one end portion in the longitudinal direction. A plurality of plug-in connection portions are provided to be shifted from each other along the short side direction and the long side direction of the branch switch.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the front surface of the mounting member is connected to the secondary side terminal of the main switch and has a plurality of conductive members arranged in parallel along the thickness direction of the mounting member. The bar is arranged along the longitudinal direction of the mounting member, and the branch switch has a plug connection portion having a pair of blade receivers inserted and connected from the short direction of the corresponding conductive bar at one end portion in the longitudinal direction. The conductive bar has a plurality of substantially triangular insertion pieces in the short direction that have one side substantially perpendicular to the longitudinal direction of the branch switch and are inserted and connected to the blade receiver of the insertion connection portion. It is formed integrally with at least one side edge.

  According to the invention of claim 1, since the branch switch is arranged so that its longitudinal direction does not coincide with either the short direction or the long direction of the mounting member, the branch switch in the short direction of the mounting member is provided. The occupied space can be narrowed, and therefore the length of the mounting member in the short direction can be shortened.

  According to the second aspect of the present invention, since the branch switch is arranged so that the load connecting portion is located outside the other end portion in the longitudinal direction of the branch switch with respect to the central axis in the short direction of the mounting member. And the bending diameter of the electric wire at the time of routing the electric wire connected to a load connection part can be made small, Therefore The length in the transversal direction of an attachment member can be shortened.

  According to the invention of claim 3, since the plurality of insertion connecting portions are provided at one end in the longitudinal direction of the branch switch so as to be shifted from each other along the short direction and the longitudinal direction of the branch switch. Even when they are inclined, the contact area of each plug connection portion with the conductive bar can be made substantially equal, and the contact reliability of the plug connection portion can be improved.

  According to the invention of claim 4, a plurality of substantially triangular insertion pieces having one side substantially perpendicular to the longitudinal direction of the branch switch and inserted and connected to the blade receiver of the insertion connection portion are connected to the conductive bar. Since it is integrally formed on at least one side edge in the short direction, even when the branch switch is placed at an angle, the contact area of each plug connection with the conductive bar can be made approximately equal. The contact reliability of the part can be improved.

  Hereinafter, each embodiment of a distribution board according to the present invention will be described with reference to the drawings. In the following description, unless otherwise specified, the top, bottom, left, and right in FIG. 1A are defined as the top, bottom, left, and right directions, the front side of the page is the front direction, and the back side of the page is the back direction.

(Embodiment 1)
Hereinafter, Embodiment 1 of a distribution board according to the present invention will be described with reference to the drawings. In the present embodiment, as shown in FIG. 1 (a), a main body switch 2 and a conductive material are elongated in a substantially box-like board body 1 whose back is attached to a wall surface (not shown). The three conductive bars 5a to 5c that are formed and connected to the secondary side of the main switch 2 are arranged in parallel along the longitudinal direction of the conductive bars 5a to 5c, and are electrically connected to the corresponding conductive bars 5a to 5c. A plurality of branch switches 3 to be connected are housed.

  The branch switch 3 is a so-called plug-in circuit breaker, and has a substantially rectangular parallelepiped switch body 30 and one end in the longitudinal direction of the switch body 30 as shown in FIG. And a cover 4 which is a plug-in connection portion attached to the switch body. A handle 31 is provided on the upper surface of the switch body 30. The inside of the cover 4 is divided into three rooms along the vertical direction in FIG. 1B by two partition walls (not shown), and a cut groove 40 is formed in the side wall facing each room. A blade receiving portion 41 comprising a pair of blade receivers is housed in each of the upper compartment and the central compartment. Thus, by inserting the conductive bars 5a to 5c into the groove 40 of the cover 4, the conductive bars 5a to 5c are sandwiched between the blade receiving portions 41, and the conductive bars 5a to 5c and the branch switch 3 are electrically connected. Connected.

  Moreover, the load connection part 32 which consists of a known quick connection terminal comprised by the terminal plate and the lock spring is provided in the other edge part in the longitudinal direction of the switch main body 30, although it is not shown in figure, electric wire insertion An electric wire (not shown) inserted into the switch body 30 through a hole (not shown) is held and electrically connected between the terminal plate and the lock spring, and the electric wire is prevented from being pulled out. (Locked).

  As shown in FIG. 1B, the panel body 1 has an open front surface and an outer lid 10 attached to the front surface via a hinge 10a so as to be opened and closed. Further, as shown in FIG. 1 (a), a main board 11 made of a substantially rectangular iron plate with a main switch 2 attached to the front face and a plurality of branch switches on the front face are provided inside the panel body 1. And a branching substrate 12 made of a substantially rectangular iron plate to which 3 is attached, and the substrates 11 and 12 together constitute a mounting member having different vertical and horizontal lengths. A pair of long attachment pieces 13 for attaching the main board 11 and the branch board 12 are provided along the left and right sides of the bottom face of the board body 1 inside the board body 1. The mounting piece 13 has holes (not shown) for inserting bolts 14 standing from the four corners of the bottom surface of the panel body 1 at both ends in the longitudinal direction, and the bolts 14 are inserted into the holes. Then, the mounting piece 13 is fixed by screwing the nut 15 into the bolt 14. The attachment piece 13 is provided with a plurality of screw insertion holes 13a along the longitudinal direction thereof. Thus, the main board 11 and the branch board 12 are placed on the front surfaces of the pair of mounting pieces 13, and screw insertion holes are formed in the four corners and left and right side edges of the boards 11 and 12 in the vertical direction. The substrates 11 and 12 are fixed to the mounting piece 13 by overlapping the screw insertion holes 13 a of the mounting pieces 13 and screwing them with the mounting screws 7.

  One end of three connection bars 6a to 6c formed in a substantially L shape from a conductive material is screwed to the secondary side connection terminal 2a of the main switch 2 and the three connection bars 6a to 6a. Among the 6c, the connecting bars 6a and 6b on both sides are for the voltage electrode, and the central connecting bar 6c is for the neutral electrode. Further, the connecting bars 6a and 6b on both sides are bent in the vicinity of the connecting part to the main switch 2, the outer connecting bar 6a is on the front side with respect to the central connecting bar 6c, and the inner connecting bar 6b is the central connecting bar. It arrange | positions at the rear surface side with respect to the bar 6c, and each connection bar 6a-6c is each arrange | positioned at intervals in the transversal direction and the thickness direction.

  As shown in FIG. 1 (a), at the portion of the branching substrate 12 corresponding to the other ends of the connecting bars 6a to 6c, three step portions (see FIG. 1) supporting the other ends of the connecting bars 6a to 6c. (Not shown) is provided with an upper receiving base 16 provided with an interval in the vertical direction, and is fixed by a mounting screw 7. The other ends of the connecting bars 6a to 6c and the one ends of the conductive bars 5a to 5c are coupled to each other. is doing. Moreover, the lower receiving member 17 which supports the other end part of conductive bar 5a-5c is being fixed to the site | part of the branch board | substrate 12 corresponding to the other end part of conductive bar 5a-5c.

  As described above, the conductive bars 5a to 5c are arranged side by side in the thickness direction in the order of the conductive bar 5a for the voltage electrode, the conductive bar 5c for the neutral electrode, and the conductive bar 5b for the voltage electrode from the front side. The branch board 12 runs along the longitudinal direction of the board body 10 in the center of the short side direction of the branch board 12, and the branch switch 3 is provided on the left and right sides of the conductive bars 5a to 5c, respectively, in the longitudinal direction of the conductive bars 5a to 5c. Are arranged side by side. Thus, by inserting the conductive bars 5a to 5c into the cut grooves 41 of the cover 4 of the branch switch 3 from the side in the short direction of the conductive bars 5a to 5c, the blade receiving portions 41 of the cover 4 are respectively Connected to the conductive bars 5a and 5c, the branch switch 3 is connected to a single-phase three-wire power line composed of the conductive bars 5a to 5c.

  In addition, a locking portion 12b for fixing the branch switch 3 is provided at a portion where the other end of the branch switch 3 in the longitudinal direction contacts with the branch substrate 12. Is connected to the conductive bars 5a to 5c, and the engaging portion 12b is engaged with a recess (not shown) provided on the other side surface in the longitudinal direction of the branch switch 3 to open and close the branch. The vessel 3 is detachably attached to the branching substrate 12.

  Here, the branch switch 3 of the present embodiment is arranged so that the longitudinal direction of the branch switch 3 does not substantially coincide with the short direction and the longitudinal direction of the panel body 1 when plugged into the conductive bars 5a to 5c. There is a feature in the point. In other words, in the present embodiment, as shown in FIG. 1A, the branch switches 3 on the right side of the conductive bars 5a to 5c are arranged so that the longitudinal directions thereof substantially coincide with the upper right direction. The branch switches on the left side of 5c are arranged so that the longitudinal direction thereof substantially coincides with the upper left direction.

  By arranging the branch switch 3 as described above, the branch switch 3 is arranged in the left-right direction as compared with the case where the longitudinal direction of the branch switch 3 is substantially coincident with the left-right direction as in the prior art. The occupied space can be reduced, and therefore the length of the panel body 1 in the left-right direction can be shortened. Moreover, since the area which the adjacent branch switch 3 contacts can be made small, the heat dissipation of the branch switch 3 can be improved, and therefore the malfunction of the branch switch 3 due to heat buildup is prevented. can do.

  By the way, when connecting a pair of electric wires 8 routed from an external load (not shown) to the load connection portion 32 of the branch switch 3, for example, the branch switch 3 substantially coincides with the left-right direction as in the prior art. When arranged in such a manner, as shown in FIG. 2B, the pair of electric wires 8 routed from an external load must be bent at a substantially right angle and connected to the load connection portion 32. For this reason, in order to bend the electric wire 8 at a substantially right angle, a space in the left-right direction is required, and as a result, the length of the panel body 1 in the left-right direction must be increased. On the other hand, when the branch switch 3 according to this embodiment is arranged, as shown in FIG. 2A, when connecting a pair of electric wires 8 routed from an external load to the load connecting portion 32. Further, since it is only necessary to bend the electric wire 8 gently, the space in the left-right direction necessary for bending the electric wire 8 can be reduced, and as a result, the length of the panel body 1 in the left-right direction can be shortened. As shown in FIGS. 2A and 2B, the dimension between the right mounting piece 13 and the right long side of the panel body 1 is the same as that of both the present embodiment and the conventional example. However, in this embodiment, since the straight line part from the load connection part 32 of the branch switch 3 to the bent part of the electric wire 8 has a long margin as compared with the conventional example, the straight line part is shortened. It goes without saying that the space in the left-right direction of the panel body 1 can be reduced.

  The arrangement of the branch switch 3 is not necessarily limited to the above-described one. For example, as shown in FIG. 3A, the branch switch 3 on the right side of the conductive bars 5a to 5c is set to the right in the longitudinal direction. The branch switches 3 on the left side of the conductive bars 5a to 5c may be arranged so that the longitudinal direction thereof substantially coincides with the lower left direction. Moreover, as shown in FIG.3 (b), you may make it arrange | position the branch switch 3 only to either the left or right side (illustration left side) of conductive bar 5a-5c. Further, as shown in FIG. 3 (c), the branch switches 3 on the right side of the conductive bars 5a to 5c are arranged so that the longitudinal direction thereof substantially coincides with the upper right direction, and the left branch of the conductive bars 5a to 5c. You may arrange | position the switch 3 so that a longitudinal direction may correspond with the lower left direction substantially, respectively.

(Embodiment 2)
Hereinafter, a second embodiment of a distribution board according to the present invention will be described with reference to the drawings. However, since the basic configuration of this embodiment is the same as that of the first embodiment, portions common to those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 4A, the cover 4 according to the present embodiment includes a first cover 4a and a second cover 4b obtained by dividing the cover 4 into two at the approximate center in the short direction of the branch switch 3. . As shown in FIG. 4C, each of the first cover 4a and the second cover 4b is divided into three rooms along the vertical direction in FIG. 4C by two partition walls. A groove 40 is formed in the facing side wall, and a blade receiving portion 41 comprising a pair of blade receiving portions is accommodated in the upper compartment in the first cover 4a and the central compartment in the second cover 4b, respectively. Yes. That is, in the branch switch 3 of the present embodiment, the blade receiving portions 41 are arranged so as to be shifted from each other in the short direction of the branch switch 3.

  Here, the first cover 4a and the second cover 4b are provided so as to be shifted from each other by a predetermined length along the longitudinal direction of the branch switch 3, as shown in FIG. The second cover 4b protrudes from the first cover 4a. Therefore, as shown in FIG. 4 (c), the blade receiving portions 41 provided at one end of each connection terminal plate are also shifted from each other in the longitudinal direction of the branch switch 3, and the blade receiving portion of the second cover 4b. 41 is arranged so as to protrude from the blade receiving portion 41 of the first cover 4a.

  As described above, the cover 4 of the branch switch 3 includes the first cover 4 a and the second cover 4 b, and the covers 4 a and 4 b are connected to each other by a predetermined length along the longitudinal direction of the branch switch 3. When the branch switch 3 is inclined and connected to the conductive bars 5a to 5c by plugging and connecting to the conductive bars 5a to 5c, the contact area between the blade receiving portions 41 and the conductive bars 5a to 5c is substantially reduced. The contact reliability between the blade receiving portions 41 of the covers 4a and 4b and the conductive bars 5a to 5c can be improved. Moreover, since the contact area of each blade receiving portion 41 and the conductive bars 5a to 5c can be increased as compared with the first embodiment, the loss during operation of the branch switch 3 due to insufficient contact area can be reduced. Can do.

  The form of the first cover 4a and the second cover 4b is not necessarily limited to the above-described one. For example, if the branch switch 3 is arranged as shown in FIG. It is desirable that the cover 4a is provided so as to protrude from the second cover 4b.

(Embodiment 3)
Hereinafter, Embodiment 3 of the distribution board according to the present invention will be described with reference to the drawings. However, since the basic configuration of this embodiment is the same as that of the first embodiment, portions common to those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. This embodiment is characterized by the conductive bars 5a to 5c. As shown in FIG. 5, a plurality of substantially triangular insertion pieces 50 are integrally formed on the left and right side edges of the conductive bars 5a to 5c, respectively. 5a-5c has a saw shape as a whole.

  The insertion piece 50 has one side substantially perpendicular to the longitudinal direction of the branch switch 3, that is, the insertion direction of the branch switch 3. Therefore, compared with the case where the branch switch 3 is inserted and connected to the strip-like conductive bars 5a to 5c as in the prior art, the contact area between the insertion piece 50 and each blade receiving portion 41 can be increased. Therefore, the loss at the time of operation | movement of the branch switch 3 by the shortage of a contact area can be reduced.

  By the way, when connecting the branch switch 3 in which the blade receiving portion 41 is provided to be shifted from each other in the short direction of the branch switch 3 in each phase, to the conventional strip-like conductive bars 5a to 5c. However, if the conductive bars 5a to 5c of this embodiment are employed, the contact areas of the blade receivers 41 and the conductive bars 5a to 5c are made substantially equal. The contact reliability between the blade receiving portion 41 of the cover 4 and the conductive bars 5a to 5c can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the electricity distribution panel of Embodiment 1 of this invention, (a) is a front view in the state which removed the outer cover, (b) is the AA 'line sectional arrow view in the state which attached the outer cover. It is. It is a figure which shows the case where a power line is attached to a branch switch same as the above, (a) is a front view in the state which removed the outer cover of this embodiment, (b) is a front view in the state which removed the conventional outer cover It is. It is a figure which shows the example of arrangement | positioning of another branch switch same as the above, (a) is a front view at the time of arrange | positioning in substantially C shape, (b) is the case at the time of arrange | positioning only in the one side in the transversal direction of an electroconductive bar. It is a front view, (c) is a front view at the time of arrange | positioning in the substantially straight form on the both sides in the transversal direction of an electroconductive bar. It is a figure which shows the distribution board of Embodiment 2 of this invention, (a) is a front view in the state which removed the outer cover, (b) is a partially expanded view of a branch switch, (c) is a branch opening / closing. It is a side view of the cover of a vessel. It is a front view in the state where the outer lid which shows the electricity distribution panel of Embodiment 3 of the present invention was removed.

Explanation of symbols

11 Main board (mounting member)
12 Branching board (mounting member)
2 Main switch 3 Branch switch

Claims (4)

  A plate-like mounting member having a vertical and horizontal length that is mounted in a direction in which the back surface faces the wall surface, a main switch disposed on one end side in the longitudinal direction of the mounting member on the front surface of the mounting member, and the front surface of the mounting member A distribution board comprising a plurality of branch switches arranged on the other end side in the longitudinal direction of the mounting member relative to the main switch and arranged in parallel along the longitudinal direction of the mounting member. The distribution board is characterized in that the container is arranged such that its longitudinal direction does not coincide with either the short direction or the longitudinal direction of the mounting member.   The branch switch is provided with a load connecting portion to which an electric wire routed from an external load is connected at one end in the longitudinal direction, and the load connecting portion is attached to the mounting member more than the other end in the longitudinal direction of the branch switch. The distribution board according to claim 1, wherein the distribution board is disposed on the mounting member so as to be located on the outer side with respect to the central axis in the short direction.   A plurality of conductive bars, one end of which is connected to the secondary terminal of the main switch and arranged in parallel along the thickness direction of the mounting member, are disposed along the longitudinal direction of the mounting member on the front surface of the mounting member. The branch switch is provided with a plurality of plug connection portions at one end in the longitudinal direction having a pair of blade receivers plugged and connected from the short direction of the corresponding conductive bar. The distribution board according to claim 1, wherein the distribution board is provided so as to be shifted from each other along a short direction and a long direction.   A plurality of conductive bars, one end of which is connected to the secondary terminal of the main switch and arranged in parallel along the thickness direction of the mounting member, are disposed along the longitudinal direction of the mounting member on the front surface of the mounting member. The branch switch is provided with a plurality of plug connection portions at one end in the longitudinal direction having a pair of blade receivers inserted and connected from the short direction of the corresponding conductive bar. A plurality of substantially triangular insertion pieces that have one side substantially perpendicular to the direction and that are inserted and connected to the blade receiver of the insertion connection portion are integrally formed on at least one side edge in the lateral direction. The distribution board according to claim 1, wherein

Images