JPH08237821A - Branch distribution unit used for distribution board - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a branch distribution unit capable of reducing wiring work and preventing erroneous wiring. [Configuration] Each load is branched and connected to the bus that is connected to the input side trunk line via the main overcurrent breaker, and a branch overcurrent breaker is provided in each branch path. The branch overcurrent circuit breaker in the corresponding branch path is turned off, and the branch distribution unit 1 is used for a distribution board in which each branch path is cut off.
Branch overcurrent circuit breaker 2 having output side connection terminal 6 at the other end
And the input side connection terminal of the branch overcurrent circuit breaker to the first bus bar B.
1 and an output side connecting means 4 for connecting a load to the output side connecting terminal of the branch overcurrent breaker and the second bus B2. The input side connecting means and the output side connecting means are linearly arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch power distribution unit used in a distribution board, and is particularly constructed so as to reduce the labor required for wiring work and prevent erroneous wiring. The present invention relates to a branch power distribution unit used for a distribution board.

[0002]

2. Description of the Related Art FIG. 7 is a partially cutaway front view showing an example of a conventional distribution board. Conventional distribution board 6 as an example of this
In 0, the main overcurrent breaker 64 is attached to the input side trunk lines 61, 62, 63, and the three busbars 65, 66, 67 are connected via the main overcurrent breaker 64. There is. Of the three busbars 65, 66, 67, for example, a plurality of branching paths 68 are branched from busbars 65, 67 on both sides (corresponding to a first busbar B1 in the present invention described later), and each of them is formed. A branch overcurrent breaker 69 is provided in each of the branch paths 68.

On the other hand, on the end side 66a of the central busbar 66 (corresponding to a second busbar B2 in the present invention described later), a number of disconnecting devices 70 corresponding to the branch overcurrent breakers 69 are provided. is there. Each load 71 for this distribution board 60
Is a branch overcurrent breaker 69 in each branch path 68.
And the disconnecting device 70 on the central busbar 59. When each load 71 is overloaded, the branch overcurrent breaker 69 of the branch path 68 corresponding to the load 71 is automatically turned on.
It becomes FF, and the branch path 68 is cut off.

[0004]

In the conventional distribution board 60 having the above-mentioned structure, the branch overcurrent breaker 69, which is a place to connect one electric wire of the load 71, and the place to connect the other electric wire. Since it is located away from the disconnecting device 70, the wiring work is troublesome and erroneous wiring is likely to occur.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a branch power distribution unit capable of reducing the time and effort required for wiring work and preventing erroneous wiring in order to solve the above problems. It is a thing.

[0006]

In order to achieve the above-mentioned object, the present invention specifically connects each load to a bus bar connected to an input side incoming trunk line through a main overcurrent breaker. , A branch overcurrent circuit breaker is provided in each branch path, and when the load is overloaded, the branch overcurrent circuit breaker in the branch path corresponding to the load is turned off so as to break each branch path. In the branch distribution unit used for the distribution board, the branch overcurrent circuit breaker having the input side connection terminal at one end side and the output side connection terminal at the other end side, and the branch overcurrent circuit breaker Input side connecting means for connecting the input side connecting terminal to the first bus bar B1, and output side connecting means for connecting the load to the output side connecting terminal of the branch overcurrent circuit breaker and the second bus bar B2. In combination with the branch overcurrent circuit breaker, Side connecting means is characterized by comprising linearly arranged said output connector means along a line intersecting the each bus.

Further, according to a preferred structure of the present invention,
The input side connecting means, the branch overcurrent circuit breaker, and the output side connecting means that are linearly connected have a width dimension perpendicular to the connecting direction thereof being a relatively narrow width dimension W, and the input side connecting means,
It is characterized in that the branch overcurrent circuit breaker and the output side connecting means are linearly connected and arranged in an overlapping manner in a direction orthogonal to the connecting direction.

Further, according to a preferred structure of the present invention, the end side of the input side connecting means is connected to the linearly connected input side connecting means, branch overcurrent breaker, and output side connecting means. It is characterized in that an input side connecting means, a branch overcurrent breaker, and an output side connecting means which are linearly connected are arranged in the connecting direction. A branch power distribution unit.

The output side connecting means may be provided with a disconnecting mechanism for disconnecting the branch path.

Further, the input side connecting means and the output side connecting means are notched upward from the bottom, extend in a direction perpendicular to the arrangement direction, and have a width corresponding to the plate thickness of the bus bar of the bus bar. However, a slit for accommodating the bus bar may be provided.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A branch power distribution unit used in a distribution board according to the present invention will be described below in detail with reference to specific embodiments shown in the drawings. FIG. 1 is a schematic plan view showing an assembled state in which a branch distribution unit for use in a distribution board according to the present invention is attached to a distribution board, and FIG.
FIG. 2 is a schematic side view showing a state in which the branch power distribution unit is assembled as shown in FIG. 1, and FIG. 3 is a schematic A-A taken along the line AA ′ in FIG. 1 is a schematic view taken along the line BB ′ in FIG. 1, and FIG. 4 is a schematic view taken along the line BB ′ in FIG.
6 is a schematic view taken along the line CC 'in FIG. 6, showing a schematic view taken along the line CC', and FIG. 6 is a schematic view taken along the line DD 'in FIG. FIG. 7 is a view taken along the line DD ′ in FIG.

In the distribution board in which the branch distribution unit 1 according to the present invention is used, each load is branched and connected to the bus bar connected to the input side incoming trunk line via the main overcurrent breaker, and each branch path is connected. Is provided with a branch overcurrent breaker, and the branch overcurrent breaker in the branch path corresponding to the load is OF
It becomes F, and is cut off at each of the branch paths.

The branch distribution unit 1 according to the present invention is
Basically, as shown in FIGS. 1 and 2, the branch overcurrent circuit breaker 2, the input side connecting means 3, and the output side connecting means 4 are combined. The branch overcurrent circuit breaker 2 comprises a circuit breaker in the middle, an input side connection terminal 5 at one end and an output side connection terminal 6 at the other end. The input side connecting means 3 is for connecting the first bus bar B1 to the input side connecting terminal 5 of the branch overcurrent circuit breaker 2, and the output side connecting means 4 is for connecting a load to the branch overcurrent circuit breaker. 2 for connecting to the output side connection terminal 6 and the second bus bar B2. In the present invention, the branch overcurrent breaker 2, the input side connecting means 3, and the output side connecting means 4 are linearly arranged along a line intersecting each busbar.

In the present invention, the input side connecting means 3, the branch overcurrent circuit breaker 2, and the output side connecting means 4 which are linearly connected have a width dimension perpendicular to the connecting direction thereof being relatively narrow. Has become. In the present invention, the input side connecting means 3, the branch overcurrent breaker 2, and the output side connecting means 4 are linearly connected and arranged in a desired number in a superposed manner in a direction orthogonal to the connecting direction. .

Further, in the present invention, with respect to the input side connecting means 3, the branch overcurrent breaker 2, and the output side connecting means 4 which are linearly connected, the connecting direction of the end side of the input side connecting means 3 is. To the input side connecting means 3, which is linearly connected to
Another branch power distribution unit 1 including the branch overcurrent breaker 2 and the output side connecting means 4 is arranged.

The input side connecting means 3 is shown in FIG. 3 and FIG.
As shown in FIG. 3, it is composed of a base 7 and a terminal member 8 combined with the base 7. The base 7
Is a synthetic resin molded product having a substantially rectangular parallelepiped shape, and a lid 10 for sealing the main body 9 and one side surface 9a of the main body 9.
And has a slit 11 cut out upward from the bottom. The slit 11 extends in a direction perpendicular to the arrangement direction, has a width corresponding to the plate thickness of the first bus bar bus B1, and accommodates the first bus bar bus B1. On the top surface side of the base 7, shallow grooves 1 extending in the arrangement direction are provided.
2 and a pair of ribs 13 on the both side surfaces and extending in the arrangement direction. The rib 13 is for receiving the lower end of the protective cover 14 attached to the upper part of the base 7.

The terminal member 8 in the input side connecting means 3
Is composed of a terminal piece 15, a connection piece 16 and a pressure contact piece 17. The terminal piece 15 is connected to the input side connecting means 3 of the branch overcurrent circuit breaker 2, is made of a rectangular conductive metal plate, and has a width corresponding to the width of the shallow groove 12 of the base 7. Then, it is accommodated in the shallow groove 12.

The connecting piece 16 is formed by bending a rectangular conductive metal plate at a substantially right angle in the center, has a first contact portion 18 for contacting the terminal piece 15 at one end, and has a base 7 of the base 7 at the other end. Slit 1
1 has a second contact portion 19 that comes into contact with the first bus bar bus B1 housed in the first bus bar B1. The first
The contact portion 18 is provided with a screw hole 20 for screwing the terminal piece 15. In the connection piece 16, the first contact portion 18 contacts the lower surface of the terminal piece 15 housed in the shallow groove 12, and the second contact portion 19 has the slit 11.
It is assembled to the base 7 so as to come into contact with one side surface of the first bus bar busbar B1 housed inside.

On the other hand, the press-contact piece 17 is formed by bending both ends of a rectangular conductive metal plate at a right angle, is housed in the base 7, is biased in the expansion direction by the spring 21, and has one end. The side is pressed against the other side surface of the first busbar bus B1 in the slit 11, and the other end side is pressed against the side surface of the connecting piece 16.

The output side connecting means 4 is shown in FIG. 5 and FIG.
As shown in FIG. 5, a base 22, a terminal member 23 combined with the base 22, and a disconnecting mechanism 24 for disconnecting a branch path that are combined with the base 22.
Composed of and.

The base 22 is a synthetic resin molded product and is a lid body 2 for sealing the main body 25 and one side surface 25a of the main body 25.
It consists of 6. The base 22 is provided with slits 27 and 28 that are cut out upward from the bottom and extend in a direction perpendicular to the arrangement direction. Further, the base 22 is provided on the side opposite to the branch overcurrent circuit breaker 2. , The first to third electric wire connecting portions 29, 30, 3 arranged in a stepwise manner in the arrangement direction
1 and. Slit 2 on the branch overcurrent breaker 2 side
7 is for accommodating the second bus bar bus bar B2, and has a width corresponding to the plate thickness of the second bus bar bus bar B2. The slit 28 is for accommodating the bus bar BU of the ground wire and has a width corresponding to the plate thickness of the bus bar BU. One end of the bus bar BU is connected to the cabinet of the distribution board.

The first electric wire connecting portion 29 and the second electric wire connecting portion 30 are for connecting electric wires of a load, and the third electric wire connecting portion 31 is for connecting a ground wire from the load. It is for. First electric wire connecting portion 29, second
The electric wire connecting portion 30 and the third electric wire connecting portion 31 are provided with electric wire insertion holes 32 extending in the arrangement direction on the back surface, and a compartment 33 is provided at the end of each electric wire insertion hole 32. Further, the first electric wire connecting portion 29, the second electric wire connecting portion 30, and the third electric wire connecting portion 30.
On the upper surface of the electric wire connecting portion 31, a mounting hole 34 extending in the vertical direction for accommodating an electric wire removing lever 52 described later is provided.
And a check hole 35 (see FIG. 1) extending vertically for inserting the tester, and the mounting hole 34 and the lower end of the check hole 35 communicate with the compartment 33.

The terminal member 23 in the output side connecting means 4 is formed by bending a rectangular conductive metal plate at a substantially right angle in the center and bending one end in a dogleg shape to form a branch overcurrent circuit breaker 2. Forming a connecting portion 36 with the output side connecting terminal 6 of
Bend the other end at a right angle and connect the first electric wire connecting portion 29 of the base 22.
The contact portion 37 is in contact with the load electric wire connected to. This terminal member 23 projects from the side surface of the base 22 where the connecting portion 36 is adjacent to the branch overcurrent circuit breaker 2,
The contact portion 37 is attached so as to be in contact with the upper surface of the compartment 33 of the first wire connection portion 29.

The disconnecting mechanism 24 in the output side connecting means 4 comprises a connecting piece 38, a pressure contact piece 39 and a switching lever 40. The connecting piece 38 is formed by bending both ends of a rectangular conductive metal plate at right angles in directions opposite to each other, and forming a contact portion 41 at one end with which a load electric wire connected to the second electric wire connecting portion 30 comes into contact. The contact portion 41 is provided on the base 22 and is separated from the compartment 33 of the second electric wire connecting portion 30.
It is attached so that it touches the upper surface of.

The pressure contact piece 39 in the disconnecting mechanism 24.
Is a rectangular conductive metal plate bent at both ends at a right angle, is accommodated in the base 22, one end is pressed against the connecting piece 38 by the spring 42, and the other end of the bus bar B in the slit 27. It is pressed against the side.

Further, the switching lever 40 in the disconnecting mechanism 24 is a synthetic resin molded product and is a prismatic straight shaft portion 4.
3 and a pressing operation portion 44 provided on the upper end of the straight shaft portion 43. The switching lever 40 is attached to the base 22 with the pressure contact piece 3
It is attached so as to be movable in the vertical direction above 9 and the lower end of the straight shaft portion 43 is in contact with the upper surface of the press contact piece 39. When the switching lever 40 is pushed down to the broken line position, the pressure contact piece 39 is pushed down against the elasticity of the spring 42,
The press contact piece 39 is adapted to be separated from the bus bar B.

The switching lever 4 pushed down to the position of the broken line
When 0 is slid in a direction perpendicular to the arrangement direction, 0 engages with an engaging portion (not shown) and is locked at the position indicated by the broken line. When the switching lever 40 is slid to the original position, the switching lever 40 and the engaging portion are disengaged, and the switching lever 40 is returned to the position indicated by the solid line by the elasticity of the spring 42.

Further, the output side connecting means 4 is provided with a connecting piece 45 and a pressure contact piece 46 provided on the side opposite to the branch overcurrent circuit breaker 2.
It has and.

The connecting piece 45 is formed by bending one end of a rectangular conductive metal plate at a right angle, and has one end at a first contact portion 47 with which the electric wire connected to the third electric wire connecting portion 31 comes in contact, and the other end at the other end. A second contact portion 48 that comes into contact with the bus bar BU housed in the slit 28 is formed, and the base 22 has the first contact portion 47 on the upper surface of the compartment 33 of the third wire connection portion 31. And the second contact portion 48 contacts the bus bar BU in the slit 28.
It is attached so as to contact one side surface of the.

The press-contact piece 46 is formed by bending both ends of a rectangular conductive metal plate at a right angle, is housed in the base 22, and has one end on the other side surface of the bus bar BU in the slit 28 by a spring 49. Pressed.

Further, the output side connecting means 4 is provided in each compartment 33.
A connecting means 50 for connecting an electric wire is provided therein, and each connecting means 50 comprises an electric wire holding member 51 and an electric wire removing lever 52.

The wire holding member 51 has a holding portion 53 formed by bending one end of a rectangular conductive metal plate having elasticity and bending it to about 45 °.
And the other end is bent at a right angle in the same direction and is housed in the compartment 33. When the tip of the electric wire is inserted into the electric wire insertion hole 32, the holding portion 53 bends downward and the holding portion 5
Due to the spring property of No. 3, the electric wire holds the pinching portion 53 and the terminal member 23.
And the connection pieces 38 and 45.

The wire removal lever 52 is a synthetic resin molded product, the upper part of which is housed in the mounting hole 34, and the lower end of which is the holding part 53.
Is in contact with When the electric wire removal lever 52 is pushed down, the holding portion 53 bends downward so that the electric wire sandwiched between the holding portion 53 and the terminal member 36 and the connecting pieces 38, 45 can be pulled out from the insertion hole 32. There is.

[0034]

In the branch distribution unit of the present invention, the two electric wires of the load are connected to the first electric wire connecting portion 2 of the output side connecting means 4.
9 and the second electric wire connecting portion 30, and the places where the two electric wires are connected are close to each other, so that the labor required for wiring is reduced and erroneous wiring is less likely to occur.

The input side connecting means 3 and the output side connecting means 4 are notched upward from the bottom, extend in the direction perpendicular to the arrangement direction, and have a width corresponding to the thickness of the bus bar of the bus bar. When the slits for accommodating the bus bars are provided, the distance between the bus bars can be shortened, so that the lateral dimension of the distribution board can be reduced and the wiring space in the distribution board can be reduced. Can be widely taken.

[Brief description of drawings]

FIG. 1 shows an embodiment of a branching and distribution unit used in a distribution board according to the present invention, and is a schematic view showing an assembled state in which the branching and distribution unit is attached to a distribution board. FIG.

FIG. 2 is a schematic side view of the branch power distribution unit assembled as shown in FIG. 1 as viewed from one side surface side.

FIG. 3 is a schematic view taken along the line AA ′ in FIG. 1 and viewed in the direction of the arrow, taken along the line AA ′.

FIG. 4 is a schematic view taken along the line BB ′ of FIG. 1 as seen in the direction of the arrows along the line BB ′.

5 is a schematic view taken along the line CC ′ of FIG. 1 as seen in the direction of the arrows CC ′.

6 is a schematic view taken along the line DD ′ in FIG. 1 and viewed in the direction of the arrows, taken along the line DD ′.

FIG. 7 is a schematic front view showing an example of a conventional distribution board, with a part thereof cut away.

[Explanation of symbols]

 1 Branch distribution unit 2 Branch overcurrent circuit breaker 3 Input side connecting means 4 Output side connecting means 5 Input side connecting terminal 6 Output side connecting terminal 11 First busbar receiving slit 27 Second busbar receiving slit 28 Ground busbar receiving slit B1 1st busbar B2 2nd busbar BU Ground busbar

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuo Hoshijima, Inventor No. 4-133, Yasuda, Himeji City, Hyogo Prefecture Inside Kinden Himeji Branch (72) No. Kinden Osaka Branch (72) Inventor Kohei Tanabe 4-133, Yasuda, Himeji City, Hyogo Prefecture Stock Company Kinden Himeji Branch (72) Inventor Yasuhiro Yamashita 7-4-10 Higashizuka, Kurashiki City, Okayama Stock Company Company Kinden Kurashiki Sales Office

Claims (5)

[Claims] 1. A load is branched and connected to a bus bar connected to an input-side incoming trunk line via a main overcurrent breaker, and a branch overcurrent breaker is provided in each branch path. A branch distribution unit for use in a distribution board in which a branch overcurrent breaker in a branch path corresponding to the load is turned off to interrupt each branch path, and an input side connection is made at one end side. A branch overcurrent circuit breaker having a terminal and an output side connection terminal on the other end side; and an input side connection terminal of the branch overcurrent circuit breaker connected to the first bus bar B.
1 in combination with the output side connecting means for connecting the load to the output side connecting terminal of the branch overcurrent circuit breaker and the second bus bar B2. A branching and distribution unit for use in a distribution board, characterized in that a current breaker, the input side connecting means, and the output side connecting means are linearly connected and arranged along a line intersecting with each busbar. 2. The input side connecting means, the branch overcurrent circuit breaker, and the output side connecting means, which are linearly connected, have a width dimension perpendicular to the connecting direction thereof being a relatively narrow width dimension W, and an input side connecting means. 2. The distribution board according to claim 1, wherein the means, the branch overcurrent breaker, and the output-side connecting means are linearly connected and arranged in an overlapping manner in a direction orthogonal to the connecting direction. Branch power distribution unit used for. 3. The input side connecting means, the branch overcurrent breaker, and the output side connecting means, which are linearly connected, are linearly connected in the connecting direction on the end side of the input side connecting means. The branch distribution unit for use in a distribution board according to claim 1, wherein the input side connecting means, the branch overcurrent breaker, and the output side connecting means are arranged. 4. The branch distribution unit for use in a distribution board according to claim 1, wherein the output side connecting means includes a disconnecting mechanism for cutting off the branch path. 5. The input-side connecting means and the output-side connecting means are notched upward from the bottom, extend in a direction perpendicular to the arrangement direction, and have a width corresponding to the plate thickness of the bus bar of the bus bar. The branch distribution unit used in the distribution board according to claim 1, further comprising a slit that accommodates the bus bar.