JP6907096B2 - Distribution board breaker mounting structure - Google Patents

Description

The present invention relates to a breaker mounting structure of a distribution board for mounting a breaker to a panel of the distribution board.

In the circuit breaker mounting structure of the distribution board according to Japanese Patent Application Laid-Open No. 2001-32709 (Patent Document 1), the panel 1 of the distribution board has a notch 3 for receiving the resin mounting component 4 having the insertion piece 6 and the knob 5. A tongue piece 11 and an L-shaped piece 12 for holding the mounting part 4 in parallel, and a hooking piece 14 for hooking the breaker 2 are provided. A hooking recess 8 for hooking 2 is formed, and a retaining portion 10 is formed at the tip of the insertion piece 6 of the mounting component 4 so as to be locked from the rear side to the protrusion 9 of the panel 1.
Further, the plug-in breaker retaining structure according to Japanese Patent Application Laid-Open No. 2004-87279 (Patent Document 2) includes a mounting plate 1 having a hooking portion 15, a plurality of conductive bars 2 to 4, and conductive bars 2 to 4. The receiving blades 12 and 13 to be plugged and connected are arranged on the front surface, and the receiving blades 12 and 13 are hooked on the hooking portion 15 and mounted on the mounting plate 1 in a state of being plugged and connected to the conductive bars 2 and 4. A plug-in breaker 5, a hanging piece 25 hanging on the side opposite to the mounting side, and a stopper portion 26 that can move back and forth between a position that protrudes and a position that does not protrude with respect to the mounting side surface of the mounting plate 1. It has a retaining member 27 that is attached to the hanging piece 25, and the stopper portion 26 is locked to the plug-in breaker 5 by moving the retaining member 27. The hanging piece 25 and the retaining member 27 are provided with an uneven engaging portion 34 that prevents the stopper portion 26 from moving from the position where the stopper portion 26 is locked to the plug-in breaker 5.

Japanese Unexamined Patent Publication No. 2001-32709 Japanese Unexamined Patent Publication No. 2004-87279

In each of the above structures, the breaker can be easily attached and detached by operating the mounting component 4 and the retaining member 27, but the main fixing force of the breaker is the locking force of the retaining portion 10 to the protrusion 9. Alternatively, it is the engaging force of the uneven engaging portion 34, and considering that the mounting space is limited, there is a limit to the improvement.
A main object of the present invention is to provide a breaker mounting structure for a distribution board in which the breaker can be easily attached and detached, a sufficient fixing force at the time of mounting is sufficiently secured, and the cost is low.

In order to achieve the above object, the invention according to claim 1 comprises a panel of a distribution board having a corner portion and a notch portion arranged at the corner portion, a breaker having a locked portion, and the engagement. A plate-shaped mounting member having a locking portion that locks to the stop portion and a groove portion that enters the notch portion is provided, and the mounting member rotates as the groove portion passes through the corner portion. The locking portion is characterized in that the locking portion approaches the locked portion and is locked by the rotation of the mounting member.
The invention according to claim 2 is characterized in that, in the above invention, the locking portion includes a pair of side portions, and the groove portion is arranged outside the side portions. ..
The invention according to claim 3 is characterized in that, in the above invention, the locking portion includes a pressing portion that comes into contact with the locked portion.
The invention according to claim 4 is characterized in that, in the above invention, the mounting member has a knob portion that is angled with respect to another portion.

The main effect of the present invention is that the breaker can be easily attached and detached, a sufficient fixing force at the time of mounting is sufficiently secured, and a low-cost breaker mounting structure for the distribution board is provided.

It is a perspective view of the breaker mounting structure which concerns on this invention. It is a top view of FIG. FIG. 2 is a cross-sectional view taken along the line BB of FIG. 2 (internal structure omitted). It is an exploded perspective view (excluding a breaker) of FIG. It is a partially separated perspective view of FIG. It is a perspective view of the mounting member of FIG.

Hereinafter, embodiments and modifications thereof according to the present invention will be described as appropriate with reference to the drawings. The present invention is not limited to the following embodiments and modifications.
The front, back, up, down, left, and right in the form and the modified example are defined for convenience of explanation, and may change depending on the installation situation and the position and posture of the movable or posture-changeable member.

FIG. 1 is a perspective view of a breaker mounting structure 1 of a distribution board according to the present invention, FIG. 2 is a top view of FIG. 1, and FIG. 3 is a BB of FIG. 2 in which an internal structure is omitted. It is a line sectional view, and FIG. 4 is an exploded perspective view of FIG. 1 excluding the breaker 16.
The breaker mounting structure 1 has a pair of plate-shaped bases 4 on which two plate-shaped panels 2 are placed side by side on the upper surface side, and a base so as to cross between the bases 4 via the left and right bases 6. A pair of front and rear bus bars 8 attached to 4 and arranged above the front and rear panels 2, and a U-shaped pedestal 10 with a side view attached to the upper part of each base 6 and the left and right ends of the bus bar 8. A bus bar 14 attached to the gantry 10 via a support plate 12 and arranged above each bus bar 8 and a mounting member 18 prepared for each breaker 16 are provided.

FIG. 5 is a perspective view of the rear panel 2 according to the circuit breaker mounting structure 1, three breakers 16 (one of which is in a separated state), and six mounting members 18. FIG. It is a perspective view of the mounting member 18.
Since the front panel 2 is the same as the rear panel 2 except for the arrangement that is line-symmetric with respect to the generatrix bar 14 in the left-right direction, the description thereof will be omitted. The same applies to the breaker 16 and the mounting member 18 mounted on the front panel 2.

The front side of the panel 2 on the rear side is the first leg portion 20 bent downward (standing portion 20a) and forward (contact portion 20b), and the rear side portion of the panel 2 is downward (standing). The second leg portion 22 is bent rearward (contact portion 22b) and the portion 22a). The panel 2 is screwed in contact with the base 4 at the contact portions 20b and 22b of the first leg portion 20 and the second leg portion 22, and the standing portions 20a of the first leg portion 20 and the second leg portion 22 are screwed together. It is separated from the base 4 by 22a.
The space between the first leg portion 20 and the second leg portion 22 on the panel 2 extends in the front-rear and left-right directions to form a mounting portion 24 on which a plurality of (six) breakers 16 can be mounted.

The upright portion 20a of the first leg portion 20 is provided with a plurality (six) of locking pieces 26 having a front view-shape protruding upward from the mounting portion 24 so as to be arranged side by side. The locking piece 26 is formed so as to be continuous with the upright portion 20a by cutting up a part of the mounting portion 24.

Further, six notches 30 are provided at the corner 25 or the peripheral portion between the upright portion 22a of the second leg portion 22 and the mounting portion 24.
Each notch 30 includes a horizontally long insertion portion 30a arranged near the rear end of the mounting portion 24, and a rail portion 30b extending from the insertion portion 30a to the corner portion 25 in a state of being shorter to the left and right than the insertion portion 30a. A series of standby portions 30c having the same width as the rail portions 30b arranged on the upright portion 22a are provided.
The length from the rear end of the rail portion 30b to the locking piece 26 in the front-rear direction is the same as the length in the front-rear direction of the breaker 16.

Each bus bar 8 includes six branch-shaped portions 32 that project upward and outward.
Further, the bus bar 14 has a total of 12 branch-shaped portions 34 that project downward and outward, six that protrude downward and forward, and six that protrude downward and backward.

Each breaker 16 is formed of a substantially rectangular parallelepiped breaker main body 40, a pair of left and right concave power supply side connection terminals 42 arranged at the front portion of the breaker main body 40, and below the breaker main body 40. A first locked piece 44 projecting forward from the breaker body 40, a pair of left and right concave load-side connection terminals 46 arranged at the rear of the breaker body 40, and a lower portion of the breaker body 40 below the first locked piece 44. It includes a second locked piece 48 as a locked portion that protrudes rearward from the breaker main body 40.

Each mounting member 18 is a metal leaf spring having a “∩” shape or an inverted concave shape when viewed from the rear, and has a symmetrical shape. A knob 50 that is bent and angled toward the bottom, a holding portion 52 that extends rearward from the center of the portion adjacent to the lower side thereof, and both left and right sides of the portion adjacent to the lower side of the knob portion 50. A side portion 54 extending downward from the surface is provided.
The upper left and right corners of the knob 50 are rounded, and the rear left and right corners of the holding portion 52 are also rounded.
The length of the holding portion 52 in the front-rear direction is the same as the length of the second locked piece 48 of the breaker 16 in the front-rear direction.
Projecting pieces 56 projecting outward are provided in the middle portion and the lower portion of each side portion 54. The distance between the inner sides of the side portions 54 is the same as the length of the second locked piece 48 in the left-right direction, and the virtual elongated surface connecting the lower surfaces of the upper projecting pieces 56 on both sides and the holding portion 52 The distance from the root portion of the lower surface of the second locked piece 48 is the same as the vertical length of the second locked piece 48. Further, the distance between the outer tips of the left and right projecting pieces 56 is shorter than the left and right lengths of the insertion portion 30a, and the width of the insertion portion 30a in the front-rear direction is slightly larger than the wall thickness of the mounting member 18.
Between the upper and lower projecting pieces 56 on each side portion 54, there is a groove portion 58 extending back and forth with a relatively short length (about the wall thickness of the mounting member 18). The vertical width of each groove 58 is slightly larger than the wall thickness of the panel 2.

The breaker 16 is attached to and detached from the mounting portion 24 of the panel 2 by an operator as follows, for example.
The operator inserts the tip ends of each side portion 54 of the upright mounting member 18 into the insertion portion 30a in the notch 30 for mounting the breaker 16 in advance (see the first and second mounting members 18 from the left in FIG. 5). ), The mounting member 18 is moved rearward with the thick portion of the mounting portion 24 of the panel 2 located on the outside of each groove portion 58 so that the left and right outer portions of the rail portion 30b are inserted into the groove portion 58. ..
The operator further moves the mounting member 18 to the rear, and continues to move the mounting member 18 from the rear end of the rail portion 30b through the corner portion 25 to the standby portion 30c (3 from the left in FIG. 5). , 4th mounting member 18). When the mounting member 18 moves from the corner portion 25 to the upper end portion of the standby portion 30c, the mounting member 18 rotates around the groove portions 58 on both sides from the standing posture, and the lying posture, that is, the gripping portion 50 is lowered backward, and the holding portion 52 Is protruding downward, and the other parts are lying down almost horizontally.

Then, first, the operator puts the first locked piece 44 of the breaker 16 into the locking piece 26 of the panel 2, and arranges the second locked piece 48 on the front side of the corresponding mounting member 18. (See breaker 16 on the left side in FIG. 5). The breaker 16 covers a portion other than the insertion portion 30a of the notch portion 30 and the rear end portion of the rail portion 30b.
Next, the operator picks the gripped portion 50 so that the groove portions 58 on both sides follow the portion arranged at the corner portion 25 of the cutout portion 30 upward so that the mounting member 18 is changed from the lying posture to the standing posture. (See breaker 16 in the center or right side in the figure). The breaker 16 is pushed by the side portion 54 of the mounting member 18 in the upright posture and the adjacent portion on the lower side of the grip portion 50, and the first locked piece 44 completely enters the locking piece 26. Further, one of the power supply side connection terminals 42 is completely inserted into the tip of one branch-shaped portion 32 in the bus bar 8, and the other power supply side is completely inserted into the tip of one branch-shaped portion 34 in the bus bar 14. The connection terminal 42 is completely inserted. Further, the left and right surfaces of the second locked piece 48 of the breaker 16 come into contact with the inside of each side portion 54 of the mounting member 18, and the upper surface of the second locked piece 48 comes into contact with the lower surface of the holding portion 52. do. Therefore, each side portion 54 and the pressing portion 52 play the role of a locking portion for locking the second locked piece 48 of the breaker 16.
In this way, the operator completes the attachment of the breaker 16 to the panel 2.

In the mounted state, the breaker 16 is prevented from moving upward via the second locked piece 48 by the upper portion of the locking piece 26 of the panel 2 and the holding portion 52 of the mounting member 18.
Further, the breaker 16 is prevented from moving in the left-right direction by the left and right portions and the side portions 54 of the locking piece 26.
Further, the breaker 16 is prevented from moving in the front-rear direction by the rear surface of the locking piece 26 and the front surface of the front surface of each side portion 54 and the front surface of the adjacent portion below the grip portion 50.
The mounting member 18 is restrained from moving in the front-rear direction and the left-right direction by fitting the second locked piece 48 between the side portions 54. Further, the mounting member 18 is moved in the vertical direction by the fitting, contact of the holding portion 52 with the second locked piece 48, or engagement of the groove portion 58 with the panel 2 (outside the rear end portion of the rail portion 30b). Movement is blocked.
The tips of the branched portions 32 and 34 are connected to the power supply side connection terminal 42.

When removing the breaker 16, the operator returns the mounting member 18 to the prone position so that the mounting member 18 is separated from the second locked piece 48 of the breaker 16, and further retracts the breaker 16 to lock the first. The piece 44 is separated from the locking piece 26 of the panel 2, and the power supply side connection terminal 42 is separated from the tips of the branched portions 32 and 34.
The operator may retract both the breaker 16 and the mounting member 18. In addition, the operator may also remove the mounting member 18 from the notch 30 of the panel 2 via the insertion portion 30a.

Such a breaker mounting structure 1 includes a panel 2 of a distribution board having a corner portion 25 and a notch portion 30 arranged so as to include the corner portion 25, a breaker 16 having a second locked piece 48, and a second. 2. Each side portion 54 and a holding portion 52 that are locked to the locked piece 48, and a plate-shaped mounting member 18 having a groove portion 58 that enters the notch portion 30, are provided, and the mounting member 18 is provided with a groove portion. The 58 rotates by passing through the corner portion 25, and each side portion 54 and the pressing portion 52 approach the second locked piece 48 and lock by rotating the mounting member 18 from the lying posture to the standing posture. .. Therefore, the operator rotates the mounting member 18 by the corners 25 in a state where the groove 58 of the mounting member 18 is engaged with the notch 30 of the panel 2, and each side portion 54 and the holding portion 52 of the breaker 16 are rotated. The breaker 16 can be easily attached to the panel simply by locking it to the second locked piece 48, and the locking of each side portion 54 and the holding portion 52 to the second locked piece 48 is simply released. The breaker 16 can be easily removed with. Engagement of the mounting member 18 for mounting such a breaker 16 with the panel 2 is low cost by forming a notch 30 in the panel 2 and forming a groove 58 in the plate-shaped mounting member 18. Can be realized with. Further, since the mounting member 18 is locked or engaged with the second locked piece 48 of the breaker 16 and the notch 30 of the panel 2 by an elastic force as a leaf spring, the fixing force at the time of mounting the breaker 16 Is fully secured.
Further, the locking portion for locking the second locked piece 48 of the breaker 16 includes a pair of side portions 54, and a groove portion 58 is arranged outside the side portions 54. Therefore, the mounting member 18 having the locking portion with respect to the breaker 16 and the groove portion 58 engaging with the notch portion 30 is formed simply and compactly.
Further, the locking portion that locks the second locked piece 48 includes a pressing portion 52 that contacts the upper surface of the second locked piece 48. Therefore, the breaker 16 can be attached more reliably.
In addition, the mounting member 18 has a knob 50 that is angled with respect to the other portion. Therefore, the operator can easily operate the mounting member 18 by holding the grip portion 50, and in particular, the mounting member has the grip portion 50 which is separated from the breaker main body 40 and is easy to hold when mounting the breaker 16. The 18 can be easily rotated until the whole is separated from the breaker 16, and the breaker 16 can be removed more easily.

The breaker mounting structure 1 has the following modification examples as appropriate.
The shape, size, material, etc. of the mounting member 18 can be changed in various ways. For example, a connecting portion connecting the lower portions of the side portions 54 may be provided so that the mounting member 18 has a square shape when viewed from the rear. Further, the knob portion 50 and other portions may be formed and combined separately, and each side portion 54 and other portions may be formed and combined separately. Further, either the knob 50 or the lower adjacent portion thereof may be omitted. Furthermore, the mounting member 18 may have a left-right asymmetric shape. Further, the pressing portion 52 may simply contact the second locked piece 48, or not only contact the second locked piece 48 but also press the second locked piece 48. You may. The length of the holding portion 52 in the front-rear direction may be shorter or longer than the length of the second locked piece 48 of the breaker 16 in the front-rear direction. Further, the groove 58 may be formed in a state where the projecting piece 56 is not arranged, may be a round groove or a dovetail groove instead of the square groove, and may be formed in a direction other than the front-rear direction when the mounting member 18 is erected. It may be formed or may be longer than the wall thickness of the mounting member 18. In addition, the mounting member 18 may be made of synthetic resin.
The bus bars 8 and 14 may be free of branching portions 32 and 34.
A concave portion is provided instead of the branched portions 32 and 34, and the power supply side connection terminal 42 is a convex portion that enters the concave portion, or a locking piece having a convex portion instead of the locking piece 26 having a square cross section. In addition to being provided, a concave portion for receiving the convex portion is provided in place of the first locked piece 44, the second locked piece 48 is provided as a concave portion for receiving the convex portion provided on the mounting member 18, and the like. The unevenness may be appropriately replaced in various locking and engaging. Further, various types of locking and engagement may be performed by convex portions having claws that engage with each other.
At least one of the power supply side connection terminal 42 and the load side connection terminal 46 may be arranged one above the other, or five or less or seven or more breakers 16 may be placed on one panel 2. Arrangement of various members and parts, such as placing one or three or more panels 2 on the base 4, making the base 4 a series or omitting it, or providing three or more types of bus bars. And the number of installations can be changed as appropriate.

1 ... breaker mounting structure, 2 ... panel, 16 ... breaker, 18 ... mounting member, 25 ... corner, 30 ... notch, 48 ... second locked piece (locked part) , 50 ... knob part, 52 ... pressing part (locking part), 54 ... side part (locking part), 58 ... groove part.

Claims (4)

A panel of a distribution board having a corner and a notch arranged at the corner,
A breaker with a locked part and
A plate-shaped mounting member having a locking portion that locks to the locked portion and a groove portion that enters the notch portion, and
Is equipped with
The mounting member rotates as the groove passes through the corner, and the mounting member rotates.
The locking portion is a breaker mounting structure of a distribution board, characterized in that the locking portion approaches the locked portion and is locked by rotation of the mounting member. The locking portion includes a pair of side portions.
The breaker mounting structure for a distribution board according to claim 1, wherein the groove portion is arranged on the outside of the side portion. The breaker mounting structure for a distribution board according to claim 1 or 2, wherein the locking portion includes a pressing portion that comes into contact with the locked portion. The breaker mounting structure for a distribution board according to any one of claims 1 to 3, wherein the mounting member has a knob portion that is angled with respect to another portion.

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