JP6330187B2 - Board equipment wiring structure - Google Patents

Description

  The present invention relates to a wiring structure for board equipment.

  In the solar connection box used in the solar power generation system, electricity generated by each solar panel is collected via a plurality of cables. Usually, each cable is connected inside the solar connection box, and is output as one large-capacity electric wire through a circuit breaker (for example, FIG. 1 of Patent Document 1).

  However, since a large-capacity electric wire has a large cable diameter, if there are legal restrictions on the cable size, etc., it will be output from the circuit breaker as a plurality of electric wires (for example, four wires). .

  The terminal part of the breaker and the electric wire are connected by crimping the crimp terminal provided at the end of the electric wire to the terminal part of the circuit breaker. A plurality of crimp terminals are crimped to one terminal part, or wiring is performed by newly providing a terminal block having terminal parts for the number of outgoing wires adjacent to the circuit breaker.

  However, when using multiple crimp terminals crimped on one terminal part, the screws used for crimping are looser than when using one crimp terminal crimped on one terminal part. There is a problem that the load is easily generated and the load on the terminal due to the load of a plurality of electric wires becomes large.

  In addition, when wiring is performed by newly providing a terminal block with terminal parts for the number of outgoing wires, it is necessary to increase the size of the solar connection box by adding the terminal block. There was a problem that the connection box could not be realized.

JP-A-7-135721

  The object of the present invention is to solve the above-mentioned problem and to increase the number of wires coming out from the terminal part of the panel equipment, without increasing the number of new terminal blocks, and the terminal part and the crimp terminal. It is to provide a technique capable of performing outgoing wiring without loosening the crimping and without increasing the burden on the terminal portion.

This invention made in order to solve the said subject is the wiring structure of the apparatus for board | boards which leads an electric wire through the lead bar from the several terminal part of the apparatus for board | substrates attached to the apparatus attachment surface of a cabinet. The lead bar includes a terminal connecting portion connected to the terminal portion and arranged in parallel with the device mounting surface, and an extending portion configured as a separate member from the terminal connecting portion. The installation portion has a substantially L-shape having a bent side that is bent in the direction opposite to the device mounting surface, and the electric wire connecting portion that connects the electric wire is perpendicular to the electric wire outgoing direction. A plurality of wires are formed side by side in the direction, and an electric wire can be led out from the connecting direction to the terminal portion.

The invention according to claim 2 is the wiring structure for board equipment according to claim 1 , wherein the extended portion is arranged so as to overlap the terminal connection portion, and the joint side is connected to the device mounting surface. It is characterized by comprising bent sides that are vertically bent in the opposite direction.

According to a third aspect of the present invention, in the wiring structure of the board equipment according to the first or second aspect , the equipment is attached to the end of the board equipment so as to cover the upper end of the terminal portion and the lead bar. A protective cover arranged in parallel with the surface is provided, and the extending portion is arranged in a space formed between the protective cover and the terminal connecting portion.

The wiring structure of a board device according to the present invention is a wiring structure of a board device that leads out an electric wire from a plurality of terminal portions of the board device attached to the equipment mounting surface of the cabinet via a lead bar. Te, the lead bar is connected to the terminal portion, a terminal connecting portion that is arranged in parallel with the device mounting surface, and a extended portion configured as a separate member from this terminal connection portion, the extension The portion has a substantially L shape having a bent side that is bent in a direction opposite to the device mounting surface, and a wire connecting portion that connects an electric wire to the bent side is perpendicular to the wire outgoing direction. A plurality of wires are arranged in parallel, and the wires can be drawn out from the connecting direction to the terminal portion. As a result, it is possible to wire a plurality of electric wires in one phase in a space-saving manner without overlapping the crimp terminals of the wires, without causing looseness in crimping between the terminal portion and the crimp terminal, and to the terminal portion. It is possible to realize an outgoing line that does not increase the burden on the customer.

Moreover, according to this invention, while being able to make the space of the orthogonal | vertical direction with respect to a terminal connection part the space which wires a some electric wire, it becomes possible to prevent the electric wires from overlapping.

  The terminal connection part and the extension part are configured as separate members, and the extension part is formed by bending the joint side arranged to overlap with the terminal connection part and the joint side in a direction perpendicular to the device mounting surface. It may be composed of bent sides. Thereby, useless material which is not used can be reduced, and material efficiency is good.

  Moreover, it is preferable to form a plurality of holes in the bent side as a wire connecting portion in parallel in the bending direction, thereby connecting a plurality of wires using a space perpendicular to the terminal connecting portion. In addition, each crimp terminal can be securely tightened.

  In addition, the end part of the board equipment is provided with a protective cover arranged in parallel with the equipment mounting surface so as to cover the upper end of the terminal part and the lead bar, and the extension part is provided between the protective cover and the terminal connection part. It is more preferable to arrange in the space formed in the. As a result, it is possible to prevent foreign matter from entering the conductive portion, hand contact, and the like.

It is a front view which shows embodiment of this invention. It is a perspective view which shows 1st Embodiment. It is sectional drawing which shows 1st Embodiment. It is sectional drawing which shows the 1st reference form . It is a perspective view which shows the 2nd reference form . It is a perspective view which shows the 3rd reference form.

Preferred embodiments of the present invention are shown below.
In FIG. 1, the cabinet 1 is a solar connection box. An input switch 2 to which a current from a solar panel (not shown) is input is attached inside the cabinet 1. From the P pole of the input switch 2, a backflow prevention diode 3 and a P pole copper bar 4 are connected. Thus, current is input via the input line 7 to the input terminal portion 6 of the output-side circuit breaker 5 attached to the output side inside the cabinet 1. Further, current is input from the N pole of the input switch 2 to the input terminal portion 6 of the output side circuit breaker 5 via the input line 7 via the N pole copper bar 8. An output terminal portion 9 is formed on the same side as the input terminal portion 6 of the output side circuit breaker 5, and an output line 10 is output from the output terminal portion 9 downward in FIG. A current is output to a power conditioner, a current collection box or the like (not shown). Moreover, in this embodiment, the input terminal part 6 and the output terminal part 9 are connected in series at the terminal part opposite to the input terminal part 6 and the output terminal part 9, and two contacts are provided in the series circuit. Corresponding to the usage environment where a large current capacity is required. In addition, in this specification, the up-down direction and the left-right direction mean directions when the output-side circuit breaker 5 is attached inside the cabinet 1 as shown in FIG.

The wiring structure of the plurality of output terminal portions 9 and the output lines 10 in the output-side circuit breaker 5 is performed via a lead bar 11 as shown in FIG. 2 as the first embodiment. The lead bar 11 is connected to the output terminal unit 9 and is arranged in parallel with the mounting surface of the output-side circuit breaker 5, and the substantially L-shaped extension that is attached to the terminal connection unit 12 as a separate member. It consists of the part 13. As shown in FIG. 3, the extending portion 13 is bent vertically so that the joint side 14 arranged to overlap the terminal connection portion 12 and the joint side 14 are directed in the direction opposite to the mounting surface of the output circuit breaker 5. The bent side 15 was formed. The bent side 15 is not limited to the one that is bent perpendicularly in the direction opposite to the mounting surface of the output-side circuit breaker 5, as long as it is bent on the opposite side to the mounting surface of the output-side circuit breaker 5. It ’s good. Further, a connecting hole 16 is formed in the bent side 15 of the extending portion 13, an electric wire connecting portion 17 is formed by fixing the crimp terminal of the output line 10 to the connecting hole 16, and the electric wire of the electric wire connecting portion 17 is connected. The surface to be connected was formed in parallel with the downward direction in FIG. A plurality of these electric wire connecting portions 17 are formed side by side in the direction perpendicular to the electric wire outgoing direction . A plurality of the connection holes 16 are formed in the bending direction of the bending side 15 according to the use environment. In the first embodiment, two connection holes 16 are formed in one phase, so that each of the two connection holes 16 has two. Two electric wire connection portions 17 are provided.

  With the above-described configuration, it is possible to wire a plurality of output wires 10 in one phase in a space-saving manner without overlapping the crimp terminals of the output wires 10, and without loosening the crimping of the crimp terminals at the wire connection portion 17. And the outgoing line which does not increase the burden to the electric wire connection part 17 is realizable. Further, by forming the surface of the electric wire connecting portion 17 to which the electric wires are connected in parallel with the downward direction of the paper of FIG. 1, the output line 10 can be output in the same direction, that is, the downward direction of the paper of FIG. Can be wired in one place, making wiring at the customer easier. On the other hand, when the P-pole and N-pole output lines 10 are branched and wired, the output line 10 may be routed in different directions, for example, by changing the mounting angle of the extended portion 13 with respect to the terminal connection portion 12. Is possible. Further, since the extended portion 13 is provided with a bent side 15 that is bent on the opposite side of the mounting surface of the output side circuit breaker 5, the output side circuit breaker 5 is connected to the terminal connection portion 12 as shown in FIG. 3. Since the space on the opposite side of the mounting surface can be used as a space for wiring the plurality of output lines 10, the input line 7 and the electric wire connecting portion 17 do not overlap, and the output lines 10 can be prevented from overlapping each other. It becomes possible. Further, by forming the plurality of connection holes 16 in the bending direction of the bent side 15, the plurality of output lines 10 can be connected to the terminal connection portion 12 using the space opposite to the mounting surface of the output side circuit breaker 5. In addition to being connectable, each crimp terminal can be securely tightened.

  Further, in order to prevent short circuit between the different poles, it is preferable to form the bent side 15 so that the electric wire connecting portions 17 of the respective phases are separated as shown in FIG. In addition, a crimp terminal can be attached to both sides of the connection hole 16 to form one wire connection portion 17.

  At the end of the output-side circuit breaker 5, as shown in FIG. 3, a protective cover 18 is provided that is arranged in parallel with the mounting surface of the output-side circuit breaker 5 so as to cover the upper end of the output terminal unit 9 and the lead bar 11. The extending portion 13 is disposed in a space formed between the protective cover 18 and the terminal connecting portion 12. As a result, it is possible to prevent foreign matter from entering the conductive portion, hand contact, and the like.

  In the first embodiment, the lead bar 11 is fixed to the space formed between the lead bar 11 and the mounting surface of the output circuit breaker 5 as shown in FIGS. The base part 20 is formed. Thereby, insulation between the lead bar 11 and the mounting surface of the output circuit breaker 5 can be achieved, and at the same time, the load on the output terminal portion 9 due to the load of the output wire 10 and the lead bar 11 is reduced. be able to.

FIG. 4 shows a first reference form . The extending portion 13 includes a joining side 14 that is disposed so as to overlap the terminal connection portion 12, a folding side 15 that is formed by bending the joining side 14 in a direction perpendicular to the mounting surface of the output-side circuit breaker 5, From the end of the side 15, a crank shape in which a parallel side 21 arranged in parallel with the mounting surface of the output-side circuit breaker 5 extends in the left-right direction can be formed. As a result, as in the first embodiment, the space opposite to the mounting surface of the output circuit breaker 5 with respect to the terminal connection portion 12 can be used as a space for wiring the plurality of output lines 10. The line 7 and the electric wire connection part 17 do not overlap, and the output lines 10 can be prevented from overlapping each other. At this time, the connection hole 16 is formed in parallel to the parallel side 21 in the extending direction, but the connection hole 16 may be formed in the bent side 15 according to the use environment. Other structures are the same as those in the first embodiment described above.

FIG. 5 shows a second reference form . In this configuration , the parallel sides 21 of the first reference embodiment described above are formed so as to extend in the outgoing line direction of the output line 10, that is, in the downward direction. At this time, although the electric wire connection part 17 shall be formed in the edge part of the terminal connection part 12, and the edge part of the parallel side 21, it can change according to a use condition. Other structures are the same as those in the first embodiment described above.

More than one time, as the output line 10 is for outgoing line to the downward direction as viewed in FIG. 1, for example, for reasons such as indoor installation when making outgoing to the left-right direction in FIG. 1, third As shown in FIG. 6 as a reference form , the outgoing line direction of the output line 10 can be changed by changing the mounting direction of the extending portion 13. In the first embodiment , the terminal connecting portion 12 and the extending portion 13 constituting the lead bar 11 are separated from each other, thereby reducing unnecessary materials that are not used and improving the material efficiency. As shown in the third reference form , the terminal connecting portion 12 and the extending portion 13 may be integrally formed.

  Further, the electric wire connecting portion 17 is formed at a position extending on the opposite side to the mounting surface of the output-side circuit breaker 5 with respect to the terminal connecting portion 12, and does not overlap the input line 7 and is formed in the protective cover 18. If it does, the shape of the extension part 13 will not be limited.

  As described above, the present invention relates to the wiring structure of the output-side circuit breaker 5 attached to the solar connection box, but can also be applied to an electrical equipment storage box containing other equipment. In addition, the wiring structure of the present invention can be applied not only to the output-side circuit breaker 5 but also to other devices having terminal portions.

DESCRIPTION OF SYMBOLS 1 Cabinet 2 Input switch 3 Backflow prevention diode 4 P pole copper bar 5 Output side circuit breaker 6 Input terminal part 7 Input line 8 N pole copper bar 9 Output terminal part 10 Output line 11 Lead bar 12 Terminal connection part 13 Extension part 14 Joining side 15 Bending side 16 Connection hole 17 Wire connection part 18 Protective cover 19 Insulator 20 Base part 21 Parallel side

Claims (3)

It is a wiring structure of a panel device that leads out an electric wire from a plurality of terminal portions of the panel device attached to the device mounting surface of the cabinet via a lead bar,
The lead bar is
A terminal connecting portion connected to the terminal portion and arranged in parallel with the device mounting surface; and an extending portion configured as a separate member from the terminal connecting portion,
The extending portion is substantially L-shaped having a bent side that is bent in the opposite direction to the device mounting surface.
A plurality of electric wire connecting portions for connecting electric wires are arranged in the bent side in a direction perpendicular to the electric wire outgoing direction, and the electric wires can be outgoing from the connecting direction to the terminal portion. Wiring structure of the equipment for the board. The extending portion is
The board side according to claim 1 , comprising: a joining side arranged to overlap the terminal connection portion; and a folding side formed by bending the joining side perpendicularly in a direction opposite to the device mounting surface . Equipment wiring structure. At the end of the panel equipment is provided with a protective cover arranged in parallel with the equipment mounting surface so as to cover the upper end of the terminal portion and the lead bar,
The wiring structure for board equipment according to claim 1, wherein the extended portion is disposed in a space formed between the protective cover and the terminal connection portion .