JPH04128014U - Distribution board - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a distribution board that can facilitate wiring work. [Structure] A voltage line bar 1, a plurality of branch breakers 2 arranged in parallel along the voltage line bar 1 on at least one side of the voltage line bar 1, and a plurality of branch breakers 2 arranged in parallel along the voltage line bar 1 on at least one side of the voltage line bar 1; A neutral bar 3 and an earth bar 4 arranged parallel to the voltage line bar 1, a neutral switch 20 connected to the neutral bar 3, and an earth terminal part 21 connected to the earth bar 4 are arranged in the direction in which the branch breakers 2 are lined up. A terminal block 5 whose overall width is substantially the same as or smaller than the width of the branch breaker 2 is provided, and the terminal block 5 is installed on one of the neutral bar 3 and the earth bar 4.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a distribution board.

0002

[Conventional technology]

A conventional example (for example, Utility Model Application No. 56-120627) is shown in FIG. In other words, this conventional example is a single-phase three-wire distribution board, with voltage line bars 70 and new wires wired in parallel. Toral bar 71 and a plurality of branch breakers 74 arranged in parallel on both sides of voltage line bar 70 and are arranged in parallel in a direction orthogonal to the branch breaker 74 at the end of the neutral bar 71. A plurality of neutral switches 75 and a load terminal 73 of the branch breaker 74 and A load 80 such as a computer connected to the load terminal of the neutral switch 75 A common ground terminal portion 77 to which a ground wire 76 is connected is provided. 72 is branch blur 74 is the main breaker, 79 is the power supply, 81 is the load 80 and branch Connect the breaker 74, neutral switch 75 and common ground terminal section 77. It is a 3-core cable.

0003

[Problem that the idea aims to solve]

However, this distribution board has a branch breaker 74, a neutral switch 75, and Since the common ground terminal portions 77 are separated from each other, the outer sheath of the 3-core cable 81 is peeled off. The length of the core wires differs when peeling, which makes the peeling work complicated and increases the load 8. Wiring is complicated because it is difficult to understand the correspondence between the 0 terminal and the branch breaker 74, etc. Therefore, there was a drawback that wiring work became troublesome.

0004 Therefore, the purpose of this invention is to create a distribution board that can facilitate wiring work. It is to provide.

[0005]

[Means to solve the problem]

The distribution board of this invention includes a voltage line bar and at least one side of the voltage line bar. A plurality of branch breakers installed in parallel along the voltage line bar, and A neutral bar and a neutral bar arranged parallel to said voltage line bar on the opposite side and ground bar, and a neutral switch and earth bar connected to said neutral bar. and the ground terminals connected to the ground bar are lined up in the direction in which the branch breakers are lined up. and the overall width is approximately the same as or smaller than the width of the branch breaker. and a terminal block that is connected to the neutral bar and the ground bar. It was installed on one side.

[0006]

[Effect]

According to the configuration of this invention, a branch breaker, a neutral switch and a ground When connecting the terminal section to a load, connect multiple neutral switches and ground terminal sections. In addition to being close to each load side of the branch breaker, each branch breaker and its new The correspondence between the ground switch and ground terminal is clear, so you can easily apply the load to each. When connecting electric wires, it is possible to simplify the treatment of electric wires, making wiring easier and saving construction work. wiring can be achieved.

[0007]

【Example】

An embodiment of this invention will be explained with reference to FIGS. 1 to 7. In other words, this distribution board are voltage line bar 1, branch breaker 2, neutral bar 3, and earth bar 4. and a terminal block 5. One end of the voltage line bar 1 is connected to the load side terminal 8 of the main breaker 6 with a terminal screw. has been done. The main breaker 6 is for three phases and is located at the upper center of the base 7 of the distribution board. The upper end of the pair of voltage line bars 1 is connected to the load side terminal 8 and connected to the main breaker. It extends below 6. 9 is the power side terminal of main breaker 6, 31 is the lower box of the distribution board , 32 is a door.

[0008] A plurality of branch breakers 2 are arranged in parallel along the voltage line bar 1 on both sides of the voltage line bar 1. It is. The power supply side terminal 10 of the branch breaker 2 faces the voltage line bar 1 and connects to the connection bar 1. Connect each other with screws through 1, and connect the load side terminal 12 on the opposite side to the voltage line bar 1. have Neutral bar 3 and earth bar 4 are connected to voltage line bar 1 of branch breaker 2. It is arranged parallel to the voltage line bar 1 on the opposite side. Neutral bar 3 is base 7 It is passed through the through hole 14 of the pedestal 13 attached to the Both ends of the neutral relay bar 15 are attached to the end of the neutral bar 3 on the main breaker 6 side. are connected by screws, and the central part of the connection bar is connected to the neutral terminal 16 of the main breaker 6. They are connected by screws via 17.

[0009] The earth bar 4 is arranged on the branch breaker 2 side of the neutral bar 3, and 7, and is supported by the supporting portion 18 of the pair of earth bars 4 on the side opposite to the main breaker 6. The ends of the two are connected to each other by screws via a ground relay bar 19. Naoko Grounding is performed at an arbitrary position (not shown) of the ground bar 4. The terminal block 5 has a neutral switch 20 and a neutral switch connected to the neutral bar 3. and the ground terminal portion 21 connected to the ground bar 4 are arranged in the direction in which the branch breakers 2 are lined up. The entire width of the neutral bar is the same as the width of the branch breaker 2, and the neutral bar is It is installed on 3. The terminal block 5 of the embodiment has a through hole 22. It is installed through the neutral bar 3. The neutral switch 20 is shown in FIG. The neutral load terminal 25 and the inner end of the neutral load terminal 25 are A pivot hole 27 formed in an L-shaped bent portion is fitted into the cut pivot protrusion 26. A movable contact that is pivotably supported and has a movable contact 41 at one end that contacts and separates from the neutral bar 3 spring 29 that presses the movable contact of the child 28 and the movable contact 28 against the neutral bar 3 The intermediate portion is rotatably supported by a shaft 40, and the movable contact 28 is connected at the inner end portion 43. It has a movable contact 41 and a handle 30 that presses a piece 42 on the opposite side to open the contact. 5 shows the on state, and FIG. 6 shows the movable contact 28 being pushed out by the inner end 43 of the handle 30. This is an OFF state in which the movable contact 41 is opened by being pressed and held in this state.

0010 The earth terminal section 21 has a terminal plate 37 and a terminal screw connected to the earth bar 4. 38 and a terminal screw 39 connected to a load (not shown) at both ends. 33 is a three-core cable, and the inner ends of each wire 34 to 36 are connected to the load side of branch breaker 2. At the terminal 12, the neutral load terminal 25, and the terminal screw 39 of the ground terminal section 21. and the outer end is connected to a load (not shown) outside the distribution board.

[0011] According to this embodiment, the branch breaker 2, the neutral switch 20 and the When connecting the neutral switch 20 and the ground terminal 21 to the load, The child part 21 is close to each load side of the plurality of branch breakers 2, and The correspondence between the power 2, its neutral switch 20, and the ground terminal 21 is clear. This simplifies the handling of the wires when connecting the load wires to each Wiring becomes easier and wiring can be done with less construction work.

0012 In addition, as shown in FIGS. 2 to 4, the negative side of the branch breaker 2 is connected to the ground terminal 21 side. Since the electric wire 34 connected to the load side terminal 12 is installed, the neutral switch 20 It becomes easier to operate the handle 30. In addition, in the above embodiment, the branch breakers 2 were installed in parallel on both sides of the voltage line bar 1, but the They may be arranged in parallel on at least one side. Also, the terminal block 5 is connected to the neutral bar 3. Although it was installed, it may also be installed on the earth bar 4. Furthermore, the width of the terminal block 5 is Although the width was the same as that of the breaker 2, it may be smaller than the width of the branch breaker 2. Ma The ground terminal portion 21 and the neutral switch 20 that constitute the terminal block 5 are integrated. may also be separate.

[0013]

[Effect of the idea]

The distribution board of this invention has multiple branches for the neutral switch and ground terminal. Close to each load side of the breaker, as well as each branch breaker and its neutral source. The correspondence between the switch and the ground terminal becomes clear, so connect the load wires to each. When making connections, the treatment of electric wires can be simplified, making wiring easier and reducing construction work. It has the effect of being achievable.

[Brief explanation of drawings]

FIG. 1 is a front view of an embodiment of this invention.

FIG. 2 is a partially enlarged view thereof.

FIG. 3 is a cross-sectional view.

FIG. 4 is a partially enlarged view thereof.

FIG. 5 is a sectional view of the neutral switch in the on state.

FIG. 6 is a cross-sectional view of the OFF state.

FIG. 7 is a sectional view of a ground terminal portion.

FIG. 8 is an explanatory diagram of a conventional example.

[Explanation of symbols]

1 Voltage line bar 2 Branch breaker 3 Neutral bar 4 Earth bar 5 Terminal block 20 Neutral switch 21 Earth terminal section

Claims (1)

[Scope of utility model registration request] 1. A voltage line bar, a plurality of branch breakers arranged in parallel along the voltage line bar on at least one side of the voltage line bar, and a plurality of branch breakers arranged in parallel along the voltage line bar on at least one side of the voltage line bar; A neutral bar and a ground bar arranged parallel to the wire bar, a neutral switch connected to the neutral bar, and a ground terminal section connected to the ground bar are arranged in the direction in which the branch breakers are lined up, and the overall width is set to the branch line. A distribution board comprising a terminal block formed to have a width that is substantially the same as or smaller than a breaker, and the terminal block is installed on one of the neutral bar and the earth bar.