JPH07255108A - Distribution board bus bar and its arrangement structure - Google Patents

Abstract

PURPOSE:To provide a distribution board bus bar and its arrangement structure wherein the spacing between the bus bars is reduced and the bus bar placement ares is thus reduced, and wherein insulation is ensured with the reduced spacing between the bus bars. CONSTITUTION:The periphery of plate- or bar-shaped bus bars 1 to be placed in a distribution board, is oddly shaped, and includes a recessed area 2 in the direction of length and a sloped area in the direction of length. The periphery 4 of the bus bars 1 is covered with an insulating cover 5. Two or more of the distribution board buns bars 6 are arranged with their position shifted both in the vertical direction and in the horizontal direction, and with their recessed areas 2 and sloped areas oriented in the same or reverse direction. The opposed surfaces 8 of the two distribution board bus bars 6, arranged with their position shifted both in the vertical direction and in the horizontal direction, are covered with an insulating cover 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board bus bar used in a distribution board to which a branch overcurrent breaker, a branch overcurrent breaker, a branch switch, a main switch, etc. are assembled and attached, and The present invention relates to an arrangement structure of a distribution board bus bar.

[0002]

2. Description of the Related Art As shown in FIG. 5, a distribution board is supplied with a direct current or a single-phase or three-phase alternating current by a main line A, which is passed through a circuit breaker B for wiring and has an elongated plate shape (square bar shape). (There are also some) to the distribution board bus bar C, and the metal branch bar D attached to the distribution board bus bar C distributes electricity to the circuit breaker E for wiring.

When two or more distribution board busbars C are arranged as shown in FIG. 5, the space between the different-polarity charged parts of the adjacent distribution board busbars C is 10 mm (space between lines exceeding 300 V) in both space and creepage. It is stipulated by the general rule of distribution boards that the creepage distance to which a voltage is applied is 20 mm or more.

[0004]

In the conventional distribution board bus bar C, since the distribution board bus bars C are arranged in parallel in the width direction on the same plane, the distribution board bus bars C are generally distributed. However, there is a problem in that the disposition area of the distribution board busbars C becomes wider in the width direction when they are arranged with a space as defined in paragraph 1.

An object of the present invention is to reduce the distance between the distribution board bus bars to reduce the layout area of the distribution board bus bars, and to ensure insulation even if the distance between the distribution board bus bars is reduced. It is to provide an arrangement structure of bus bars and distribution board bus bars.

[0006]

According to a distribution board bus bar of claim 1 of the present invention, as shown in FIG. 1, the outer peripheral shape of a plate-shaped or bar-shaped bus bar 1 arranged on the distribution board is in the longitudinal direction. It is characterized in that it has an irregular shape having a concave portion 2.

The distribution board bus bar according to claim 2 of the present invention is shown in FIG.
As shown in, the outer peripheral shape of the plate-shaped or bar-shaped bus bar 1 arranged on the distribution board is a deformed shape having a slope portion 3 in the longitudinal direction.

The distribution board bus bar according to claim 3 of the present invention is shown in FIG.
As shown in (1), the outer peripheral surface 4 of the bus bar 1 of claim 1 or 2 is covered with an insulating cover 5.

A distribution board bus bar according to claim 4 of the present invention is shown in FIG.
2, the two or more distribution board busbars 6 according to claim 1 or 2 are arranged such that the recessed portions 2 or the sloped portions 3 thereof have the same direction and the positions are shifted in the vertical direction and the horizontal direction. It is characterized by becoming.

The distribution board bus bar according to claim 5 of the present invention is shown in FIG.
2, the two or more distribution board bus bars 6 according to claim 1 or 2 are arranged such that the direction of the recessed portion 2 or the sloped portion 3 is reversed and the positions are shifted in the vertical and horizontal directions. It is characterized by becoming.

The distribution board bus bar according to claim 6 of the present invention is shown in FIG.
As shown in (2), the insulating cover 5 is covered on the mutually opposing surfaces 8 of the two distribution board bus bars 6 which are arranged so as to be displaced in the vertical and horizontal directions.

[0012]

In the distribution board busbar according to claim 1 of the present invention, since the outer peripheral shape of the busbar 1 is an irregular shape having the concave portion 2 in the longitudinal direction, two or more adjacent distribution board busbars are formed as shown in FIG. If the concave portions 2 are arranged in the same direction, even if the two distribution board busbars are arranged close to each other by the inclination of the concave portion 2, the shortest distance between the two distribution board busbars is the same as that of the conventional distribution board. It is possible to secure the same spacing as the spacing between the bus bars, and also secure insulation between the bus bars 1.

In the distribution board bus bar according to claim 2 of the present invention,
Since the outer peripheral shape of the busbar 1 is an irregular shape in which the slope portion 3 is formed in the longitudinal direction, if two or more adjacent distribution board busbars are arranged so that the concave portions 2 are in the same direction as shown in FIG.
Even if the two distribution board busbars are arranged closer to each other as much as the slope 3 is inclined, the shortest distance between the two distribution board busbars can be the same as that of the conventional distribution board busbars. The insulation between the bus bars 1 is also secured.

In the distribution board bus bar according to claim 3 of the present invention,
Since the outer peripheral surface 4 of the distribution board bus bar 1 is covered with the insulating cover 5, even if the distance between the adjacent distribution board bus bars 1 is narrower than that in the case without the insulating cover 5, the distribution board bus bar 1 The insulation between 1 is secured.

In the distribution board bus bar according to claim 4 of the present invention,
Two or more distribution board busbars 6 are provided in the concave portion 2 or the slope portion 3
Since they are arranged in the same direction and shifted in the vertical and horizontal directions, the width of the distribution board bus bar 6 is larger than that in the case where two or more adjacent distribution board bus bars 6 are arranged side by side on the same plane. Even if the arrangement in the direction is narrowed, the shortest distance between the two distribution board bus bars can be the same as the arrangement distance between the conventional distribution board bus bars, and the insulation between the bus bars 1 is also ensured.

According to the distribution board bus bar of claim 5 of the present invention,
Two or more distribution board busbars 6 are provided in the concave portion 2 or the slope portion 3
Since they are arranged with their positions reversed in the vertical and horizontal directions, two or more adjacent distribution board bus bars 6
Distribution board bus bar 6 compared to the case of lining up side by side on the same plane
Even if the width of the distribution board is narrowed, the shortest distance between both distribution board busbars can be the same as that of the conventional distribution board busbars, and insulation between busbars 1 is also ensured. It

In the distribution board bus bar according to claim 6 of the present invention,
Since the insulating covers 5 are covered on the mutually opposing surfaces 8 of the two distribution board bus bars 6 arranged adjacent to each other, the distance between the distribution board bus bars 1 adjacent to each other is smaller than that when the insulation cover 5 is not provided. Even if they are arranged narrowly, insulation between adjacent distribution board bus bars 1 is ensured.

[0018]

First Embodiment A first embodiment of a distribution board bus bar of the present invention will be described with reference to FIG. In the figure, A is a trunk line, B is a wiring breaker, and E is a wiring breaker, which are the same as those in FIG.

Reference numeral 6 in FIG. 1 denotes a distribution board bus bar, which is composed of a metal bus bar 1 and an insulating cover 5 mounted thereon.
The bus bar 1 is formed into an L-shaped rod shape by providing a recessed portion 2 in the longitudinal direction, and the receiving portions 11 are formed at both corners of the upper surface 10 lower than the upper surface 10 and along the longitudinal direction. It becomes.

The insulating cover 5 shown in FIG. 1 is formed of an insulating material (for example, resin), which is a side surface 12 of the bus bar 1.
And the bottom surface 13 on which the recessed portion 2 is formed is covered. An opening 14 is formed above the bottom surface 13 so that the bus bar 1 can be attached to and detached from the bottom surface 13, and the bus bar 1 is formed at both end edges of the opening 14. Locking part 15 that can be locked to the receiving part 11
Are formed.

The distribution board busbars 6 shown in FIG. 1 are mounted in the distribution board. In this case, the concave portions 2 of the three distribution board busbars 6 are directed downward, and the distribution board busbars 3 are also arranged. 6 are arranged vertically and laterally in a staggered pattern.

Reference numeral 16 in FIG. 1 denotes a branch bar, which is for shunting the current from the distribution board bus bar 6 to the wiring breaker E. Of these, the uppermost branch bar 16 is formed in a U shape and both end portions 17 are bent sideways,
Of these, the mounting portion 18 is screwed to the uppermost distribution board bus bar 6, and both ends 17 are screwed to the circuit breaker E for wiring. The second-stage branch bar 16 is a flat plate, and the central portion in the longitudinal direction is screwed to the second-stage distribution board bus bar 6 and both ends 17 are screwed to the circuit breaker E for wiring. The third-stage branch bar 16 is formed in an inverted U-shape, and both ends 17 are bent sideways, and the mounting portion 18 is screwed to the third-stage distribution board bus bar 6 so that both ends are bent. 17 is screwed to the circuit breaker E for wiring.

[0023]

Second Embodiment A second embodiment of the distribution board bus bar of the present invention will be described with reference to FIG. The basic configuration of the distribution board bus bar 6 is the same as that of the first embodiment in that an insulating cover 5 is attached to the bus bar 1. The difference from the first embodiment is that the recessed portion 2 of the bus bar 1 is replaced by a sloped portion. 3 is formed.

As shown in FIG. 2 (a), all three distribution board bus bars 6 have their slopes 3 directed to the lower right, and the three distribution board bus bars 6 are positioned vertically and horizontally. They are arranged in a staggered pattern. Also in this case, the U-shaped branch bar 16 is attached to the distribution board bus bar 6 at the uppermost stage, and both end portions 1
7 is screwed to the circuit breaker E for wiring, and the plate-shaped branch bar 16 is attached to the distribution board bus bar 6 of the second stage.
7 is screwed to the circuit breaker E for wiring, an inverted U-shaped branch bar 16 is attached to the distribution board bus bar 6 of the third stage, and both ends 17 thereof are screwed to the circuit breaker E for wiring.

[0025]

Third Embodiment As shown in FIG. 3, the distribution board bus bar 6 in FIG. 2 can be arranged with the slope portions 3 facing each other. Also in this case, it is desirable to attach the insulating cover 5 to the distribution board bus bar 6 as shown in FIG.

[0026]

[Embodiment 4] The distribution board bus bar 6 of the present invention can be formed in a V-shaped cross section as shown in FIG. In FIG. 4, the inner corner portion 22 and the outer corner portion 2 of the bus bar 1
3 is formed in an arc shape. The distribution board bus bar 6 is arranged in a pedestal shape with the concave portion 2 facing downward. Also in this case, it is desirable to attach the insulating cover 5 to the distribution board bus bar 6 as shown in FIG.

[0027]

Other Embodiments The shape of the bus bar 1 of the distribution board bus bar 6 of the present invention may be a shape other than that shown in the drawing. In short, the space for disposing two or three distribution board bus bars 6 adjacent to each other is not required. The shape may be narrower than that of a square plate or a square bar.

[0028]

The distribution board bus bar of the present invention has the following effects. ． In the distribution board bus bar according to claim 1, since the outer peripheral shape of the bus bar 1 is an irregular shape having the recessed portion 2 in the longitudinal direction,
Even if the distribution board busbars are arranged close to each other by the recessed portion of the recessed portion 2, the shortest distance between the two distribution board busbars can be the same as the arrangement distance of the conventional distribution board busbars. Insulation is ensured, the wiring space of the distribution board busbar is narrow, and the arrangement space in the distribution board becomes compact.

.. In the distribution board busbar according to claim 2, since the outer peripheral shape of the busbar 1 is an irregular shape in which the slope portion 3 is formed in the longitudinal direction, the distribution board busbars are arranged closer to each other as the slope portion 3 is inclined. Even so, the shortest distance between the two distribution board busbars can be the same as that of the conventional distribution board busbars, and the insulation between the busbars 1 can be ensured.
The wiring space of the distribution board bus bar is small, and the arrangement space in the distribution board is compact.

.. In the distribution board bus bar according to the third aspect, since the outer peripheral surface 4 of the distribution board bus bar 1 is covered with the insulating cover 5, the insulating property is higher than that in the case without the insulating cover 5.

.. In the distribution board busbar according to claim 4, two or more distribution board busbars 6 are arranged in the form of a platform with the recesses 2 or slopes 3 having the same orientation and being vertically or laterally displaced. Therefore, even if the space between the distribution board bus bars 6 is narrowed, the insulation between the bus bars 1 is ensured, and the wiring space of the distribution board bus bars can be narrowed. It becomes compact.

.. In the distribution board bus bar according to claim 5, two or more distribution board bus bars 6 are arranged such that the direction of the concave portion 2 or the slope portion 3 is reversed and the positions are shifted in the vertical direction and the horizontal direction. Even if the width of the electric board busbars 6 is narrowed, the insulation between the busbars 1 is ensured.
The wiring space of the distribution board bus bar is small, and the arrangement space in the distribution board is compact.

.. In the distribution board busbar according to claim 6, since the insulating covers 5 are covered on the mutually opposing surfaces 8 of the two distribution board busbars 6 arranged adjacent to each other, the insulation between the adjacent distribution board busbars 1 is prevented. Will increase.

[Brief description of drawings]

1A and 1B are views showing a first embodiment of a distribution board bus bar of the present invention, in which FIG. 1A is a perspective view and FIG. 1B is a sectional view.

2A and 2B are views showing a second embodiment of a distribution board bus bar of the present invention, in which FIG. 2A is a perspective view and FIG. 2B is a sectional view.

FIG. 3 is an end view showing a third embodiment of a distribution board bus bar of the present invention.

FIG. 4 is an end view showing a fourth embodiment of the distribution board bus bar of the present invention.

FIG. 5 is a perspective view showing an example of a conventional distribution board bus bar.

[Explanation of symbols]

 1 Busbar 2 Recessed part 3 Slope surface 4 Busbar outer peripheral surface 5 Insulation cover 6 Distribution board Busbar 8 Opposing surface

Claims (6)

[Claims] 1. A distribution board, characterized in that the outer peripheral shape of a plate-shaped or bar-shaped bus bar (1) arranged on the distribution board is formed in an irregular shape having a recess (2) in the longitudinal direction. Busbar. 2. A distribution board, characterized in that a plate-shaped or bar-shaped bus bar (1) arranged on the distribution board is formed in an irregular shape having an inclined surface portion (3) in the longitudinal direction. Busbar. 3. The bus bar (1) according to claim 1 or 2.
A distribution board bus bar, wherein the outer peripheral surface (4) is covered with an insulating cover (5). 4. The two or more distribution board bus bars (6) according to claim 1 or 2, which are provided with a recess (2) or a slope (3).
The arrangement structure of the distribution board bus bars is characterized in that they are arranged in the same direction and are displaced in the vertical and horizontal directions. 5. The two or more distribution board bus bars (6) according to claim 1 or 2, which are provided with a recess (2) or a slope (3).
The arrangement structure of the distribution board busbars is characterized by arranging them in opposite directions and shifting their positions in the vertical and horizontal directions. 6. An insulating cover (5) is covered on the mutually opposing surfaces (8) of two distribution board bus bars (6) which are arranged so as to be displaced in the vertical and horizontal directions. The arrangement structure of the distribution board bus bar according to claim 4 or claim 5.