JP6715693B2 - Electrical wiring equipment - Google Patents

Description

The present invention relates to an electric wiring device.

There is known an electric wiring device in which a printed circuit board is electrically and mechanically connected to a screw type terminal block without using a lead wire and a crimp terminal (see Patent Document 1). The printed circuit board disclosed in Patent Document 1 includes a plurality of projecting pieces coated with a conductor. The plurality of protruding pieces are fixed to the screw type terminal block by using screws. In this way, the printed circuit board is electrically and mechanically connected to the screw terminal block.

JP-A-8-162735

However, in the electric wiring device disclosed in Patent Document 1, it is not possible to electrically and mechanically connect a plurality of screw type terminal blocks arranged on different planes. The present invention has been made in view of the above problems, and an object thereof is to electrically and mechanically connect a plurality of screw type terminal blocks arranged on different planes without using lead wires and crimp terminals. It is to provide an electric wiring device that can be performed.

The electric wiring device of the present invention includes a first screw type terminal block, a second screw type terminal block, a first sub wiring board, a second sub wiring board, and a main wiring board. The first screw type terminal block has one or more first screw terminals and one or more first screws. The second screw type terminal block has one or more second screw terminals and one or more second screws. The first sub wiring board is electrically and mechanically connected to the one or more first screw terminals by using the first screw. The second sub-wiring board is electrically and mechanically connected to the one or more second screw terminals by using the second screw. The main wiring board mechanically supports and electrically connects the first sub wiring board and the second sub wiring board. The first terminal surface of the one or more first screw terminals is arranged on a plane different from the second terminal surface of the one or more second screw terminals. The main wiring board has a first main surface and a second main surface facing the first main surface. The first sub wiring board and the second sub wiring board extend in a direction intersecting the first main surface and the second main surface.

In the electric wiring device of the present invention, the first screw type terminal block is electrically connected to the second screw type terminal block through the first sub wiring board, the second sub wiring board and the main wiring board. Mechanically connected. The first sub wiring board and the second sub wiring board extend in a direction intersecting the first main surface and the second main surface of the main wiring board. The first terminal surface of the first screw type terminal block is arranged on a plane different from the second terminal surface of the second screw type terminal block. According to the electric wiring device of the present invention, a plurality of screw type terminal blocks arranged on different planes can be electrically and mechanically connected without using lead wires and crimp terminals.

FIG. 3 is an exploded perspective view of the electric wiring device according to the first embodiment of the present invention. It is a top view of the electric wiring device concerning Embodiment 1 of the present invention. It is a perspective view of the electric wiring device which concerns on Embodiment 2 of this invention. It is an exploded perspective view of the electric wiring device concerning Embodiment 3 of the present invention. It is a disassembled perspective view of the electric wiring apparatus which concerns on Embodiment 4 of this invention. It is a perspective view of the electric wiring device which concerns on Embodiment 5 of this invention. It is a top view of the electric wiring device which concerns on Embodiment 6 of this invention. It is a side view of the electric wiring device concerning Embodiment 6 of the present invention.

Hereinafter, embodiments of the present invention will be described. The same components are designated by the same reference numerals, and the description thereof will not be repeated.

Embodiment 1.
The electrical wiring device 1 according to the first embodiment will be described with reference to FIGS. 1 and 2. The electric wiring device 1 according to the present embodiment includes a first screw type terminal block 10, a second screw type terminal block 20, a first sub wiring board 15, a second sub wiring board 25, and a main wiring board. 3 and 3.

The first screw type terminal block 10 has one or more first screw terminals 11 and one or more first screws 12. In the present embodiment, the first screw type terminal block 10 has three first screw terminals 11 and three first screws 12. The first screw terminal 11 may be made of a conductive material such as copper (Cu), for example. The first screw terminal 11 has a first terminal surface 14 that faces the first sub wiring board 15. The first normal line 13 is a normal line of the first terminal surface 14. The first screw 12 may be made of a conductive material. The first screw terminal 11 is provided with a hole (not shown) for receiving the first screw 12. The first screw terminal 11 may be arranged in the recess of the first resin block. The plurality of first screw terminals 11 may be electrically insulated from each other by the protrusion of the first resin block. The first screw type terminal block 10 may further include a screw 19. The screw 19 electrically and mechanically connects a wiring or a printed circuit board (not shown) to the first screw terminal 11.

The second screw-type terminal block 20 has one or more second screw terminals 21 and one or more second screws 22. In the present embodiment, the second screw type terminal block 20 has three second screw terminals 21 and three second screws 22. The second screw terminal 21 may be made of a conductive material such as copper (Cu), for example. The second screw terminal 21 has a second terminal surface 24 facing the second sub wiring board 25. The second normal 23 is the normal of the second terminal surface 24. The second terminal surface 24 of the second screw terminal 21 is arranged on a plane different from the first terminal surface 14 of the first screw terminal 11. The second terminal surface 24 of the second screw terminal 21 is not coplanar with the first terminal surface 14 of the first screw terminal 11. The second terminal surface 24 of the second screw terminal 21 is not arranged on the first terminal surface 14 of the first screw terminal 11 or on the extension plane thereof. The second terminal surface 24 may be parallel to the first terminal surface 14. The second normal line 23 may be parallel to the first normal line 13.

The second screw 22 may be made of a conductive material. The second screw terminal 21 is provided with a hole (not shown) that receives the second screw 22. The second screw terminal 21 may be arranged in the recess of the second resin block. The plurality of second screw terminals 21 may be electrically insulated from each other by the protrusion of the second resin block. The second screw type terminal block 20 may further include a screw 29. The screw 29 electrically and mechanically connects a wiring or a printed circuit board (not shown) to the second screw terminal 21.

The first sub-wiring board 15 includes a first sub-wiring (not shown) made of a thin film conductor on the surface and/or the inside of the first sub-wiring board 15. The first sub wiring board 15 may be a printed board. The first sub wiring board 15 extends in a direction (x direction) intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. Specifically, the first sub wiring board 15 may extend in a direction (x direction) orthogonal to the first main surface 3a and the second main surface 3b of the main wiring board 3. The first sub wiring board 15 may include a plurality of first legs 16. The first leg portion 16 may extend in a direction (x direction) intersecting the first main surface 3a of the main wiring board 3. Specifically, the first leg portion 16 may extend in a direction (x direction) orthogonal to the first main surface 3a of the main wiring board 3. The plurality of first legs 16 may be separated from each other by a slit. The first sub-wiring board 15 is provided with a first hole 17 for receiving the first screw 12. The first holes 17 may be provided in each of the plurality of first leg portions 16.

The first sub wiring board 15 is electrically and mechanically connected to the first screw terminal 11 by using the first screw 12. The first leg portion 16 of the first sub wiring board 15 is fixed to the first screw terminal 11 by using the first screw 12. The first leg portion 16 of the first sub wiring board 15 may be arranged in the recess of the first resin block. The first sub wiring board 15 contacts the first terminal surface 14 of the first screw terminal 11. Specifically, the first leg portion 16 of the first sub wiring board 15 is in surface contact with the first terminal surface 14 of the first screw terminal 11. A part of the first sub wiring of the first sub wiring board 15 is provided on the surface of the first sub wiring board 15 facing the first screw terminal 11 or on the first hole 17. The first sub wiring of the first sub wiring board 15 is electrically connected to the first screw terminal 11.

The second sub-wiring board 25 includes a second sub-wiring (not shown) made of a thin film conductor on the surface and/or the inside of the second sub-wiring board 25. The second sub wiring board 25 may be a printed board. The second sub wiring board 25 extends in a direction (x direction) intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. Specifically, the second sub wiring board 25 may extend in a direction (x direction) orthogonal to the first main surface 3a and the second main surface 3b of the main wiring board 3. The second sub wiring board 25 may include a plurality of second legs 26. The second leg portion 26 may extend in a direction (x direction) intersecting the second main surface 3b of the main wiring board 3. Specifically, the second leg portion 26 may extend in a direction (x direction) orthogonal to the second main surface 3b of the main wiring board 3. The plurality of second legs 26 may be separated from each other by slits. The second sub-wiring board 25 is provided with a second hole 27 that receives the second screw 22. The second holes 27 may be provided in each of the plurality of second leg portions 26.

The second sub wiring board 25 is electrically and mechanically connected to the second screw terminal 21 by using the second screw 22. The second leg portion 26 of the second sub wiring board 25 is fixed to the second screw terminal 21 by using the second screw 22. The second leg portion 26 of the second sub wiring board 25 may be arranged in the recess of the second resin block. The second sub wiring board 25 contacts the second terminal surface 24 of the second screw terminal 21. Specifically, the second leg portion 26 of the second sub wiring board 25 is in surface contact with the second terminal surface 24 of the second screw terminal 21. A part of the second sub wiring of the second sub wiring board 25 is provided on the surface of the second sub wiring board 25 facing the second screw terminal 21 or on the second hole 27. The second sub wiring of the second sub wiring board 25 is electrically connected to the second screw terminal 21.

The main wiring board 3 has a first main surface 3a and a second main surface 3b opposite to the first main surface 3a. The main wiring board 3 includes a main wiring made of a thin film conductor on the surface and/or the inside of the main wiring board 3. The main wiring board 3 may be a printed board. The main wiring board 3 mechanically supports and electrically connects the first sub wiring board 15 and the second sub wiring board 25. The first sub wiring board 15 and the second sub wiring board 25 may be mechanically supported at different positions with respect to the main wiring board 3. The main wiring of the main wiring board 3 electrically connects the first sub wiring of the first sub wiring board 15 and the second sub wiring of the second sub wiring board 25.

The first sub wiring board 15 and the second sub wiring board 25 may be joined to the main wiring board 3 by using solder. The main wiring board 3 includes connectors (first connector 3c, second connector 3d), and the main wiring board 3 uses connectors (first connector 3c, second connector 3d) to connect the first sub wiring board 15 and the first sub wiring board 15. The two sub wiring boards 25 may be mechanically supported. The first sub wiring board 15 and the second sub wiring board 25 may be inserted into the connectors (first connector 3c, second connector 3d) included in the main wiring board 3.

Specifically, the main wiring board 3 may include a first connector 3c and a second connector 3d. The first connector 3c mechanically connects the first sub wiring board 15 to the main wiring board 3. The first sub wiring board 15 may be inserted into the first connector 3c. The second connector 3d mechanically connects the second sub wiring board 25 to the main wiring board 3. The second sub wiring board 25 may be inserted into the second connector 3d. The first connector 3c and the second connector 3d may be holes penetrating between the first main surface 3a and the second main surface 3b. The end of the first sub wiring board 15 on the main wiring board 3 side may be fitted to the first connector 3c. The end of the first sub-wiring board 15 on the main wiring board 3 side may be the end on the side opposite to the first leg 16 side. The end portion of the second sub-wiring board 25 on the main wiring board 3 side may be fitted to the second connector 3d. The end of the second sub-wiring board 25 on the main wiring board 3 side may be an end on the side opposite to the second leg 26 side.

The 1st screw type terminal block 10 may be arrange|positioned at the 1st main surface 3a side. The 2nd screw type terminal block 20 may be arrange|positioned at the 2nd main surface 3b side. The first sub wiring board 15 is mechanically supported by the main wiring board 3. The first screw type terminal block 10 is mechanically supported by the main wiring board 3 via the first sub wiring board 15. The first screw type terminal block 10 hangs from the main wiring board 3 via the first sub wiring board 15. The second sub wiring board 25 is mechanically supported by the main wiring board 3. The second screw type terminal block 20 is mechanically supported by the main wiring board 3 via the second sub wiring board 25. The second screw type terminal block 20 hangs from the main wiring board 3 via the second sub wiring board 25.

The effects of the electric wiring device 1 of the present embodiment will be described.
The electric wiring device 1 according to the present embodiment includes a first screw type terminal block 10, a second screw type terminal block 20, a first sub wiring board 15, a second sub wiring board 25, and a main wiring board. 3 and 3. The first screw type terminal block 10 has one or more first screw terminals 11 and one or more first screws 12. The second screw-type terminal block 20 has one or more second screw terminals 21 and one or more second screws 22. The first sub wiring board 15 is electrically and mechanically connected to the one or more first screw terminals 11 by using the first screw 12. The second sub wiring board 25 is electrically and mechanically connected to the one or more second screw terminals 21 by using the second screw 22. The main wiring board 3 mechanically supports and electrically connects the first sub wiring board 15 and the second sub wiring board 25. The first terminal surface 14 of the one or more first screw terminals 11 is arranged on a plane different from the second terminal surface 24 of the one or more second screw terminals 21. The main wiring board 3 has a first main surface 3a and a second main surface 3b facing the first main surface 3a. The first sub wiring board 15 and the second sub wiring board 25 extend in a direction intersecting the first main surface 3a and the second main surface 3b.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the second screw via the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The terminal block 20 is electrically and mechanically connected. The first sub wiring board 15 and the second sub wiring board 25 extend in a direction intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. The first terminal surface 14 of the first screw type terminal block 10 is arranged on a plane different from the second terminal surface 24 of the second screw type terminal block 20. According to the electrical wiring device 1 of the present embodiment, a plurality of screw type terminal blocks arranged on different planes can be electrically and mechanically connected without using lead wires and crimp terminals.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the second screw via the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The terminal block 20 is electrically and mechanically connected. The main wiring board 3, the first sub wiring board 15, and the second sub wiring board 25 each have rigidity higher than that of the lead wire. The main wiring board 3 can mechanically support the first screw-type terminal block 10 via the first sub-wiring board 15. The main wiring board 3 can mechanically support the second screw type terminal block 20 via the second sub wiring board 25. The first screw type terminal block 10 and the second screw type terminal block 20 can be supported by only one supporting member supporting the main wiring board 3. On the other hand, in the comparative example in which the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 by using the lead wire and the crimp terminal, the first screw type terminal block 10 and the first screw type terminal block 10 are connected. The two screw-type terminal blocks 20 are supported by the first support member and the second support member, respectively. The electrical wiring device 1 of the present embodiment can reduce the number and size of components that support the first screw type terminal block 10 and the second screw type terminal block 20 as compared with this comparative example.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the first sub-wiring board 15 including the first sub-wiring made of a thin film conductor and the second sub-wiring made of the thin film conductor. The second sub-wiring board 25 and the main wiring board 3 including the main wiring made of a thin film conductor are electrically and mechanically connected to the second screw type terminal block 20. Compared with a comparative example in which the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 using lead wires and crimp terminals, the electric wiring device 1 of the present embodiment is The length of can be reduced. The electrical wiring device 1 of the present embodiment can reduce the inductance of the wiring (first sub wiring, second sub wiring, main wiring), and therefore the wiring (first sub wiring, second sub wiring, main wiring) It is possible to reduce electric noise that may occur in wiring.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the first sub-wiring board 15 including the first sub-wiring made of a thin film conductor and the second sub-wiring made of the thin film conductor. The second sub-wiring board 25 and the main wiring board 3 including the main wiring made of a thin film conductor are electrically and mechanically connected to the second screw type terminal block 20. The thin film conductor has a larger ratio of the surface area of the conductor to the volume of the conductor than that of the lead wire. Compared with a comparative example in which the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 using lead wires and crimp terminals, the electric wiring device 1 of the present embodiment is The heat generated in (the first sub wiring, the second sub wiring, the main wiring) can be dissipated to the outside of the electric wiring device 1 more efficiently. Furthermore, since the electric wiring device 1 of the present embodiment has higher heat dissipation than the comparative example, the volume of the wiring (first sub wiring, second sub wiring, main wiring) can be reduced. The electric wiring device 1 of the present embodiment can be made lighter than the comparative example.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the second screw via the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The terminal block 20 is electrically and mechanically connected. The main wiring board 3, the first sub wiring board 15, and the second sub wiring board 25 each have rigidity higher than that of the lead wire. Compared with a comparative example in which the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 using lead wires and crimp terminals, the electrical wiring device 1 of the present embodiment is Has improved resistance to static vibration.

In the electric wiring device 1 according to the present embodiment, the first screw type terminal block 10 includes the second screw via the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The terminal block 20 is electrically and mechanically connected. The electrical wiring device 1 of the present embodiment does not require the step of soldering the lead wire to the printed board unlike the comparative example. In the electric wiring device 1 according to the present embodiment, wiring (first sub wiring, second sub wiring, main wiring) is previously provided on the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. Since it is formed, the lead wire can be prevented from being erroneously connected to the printed circuit board and the terminal block as in the comparative example. The electrical wiring device 1 according to the present embodiment has a structure that makes it possible to improve the product yield as compared with the comparative example.

In the electric wiring device 1 of the present embodiment, the first screw type terminal block 10 is arranged on the first main surface 3a side. The 2nd screw type terminal block 20 is arrange|positioned at the 2nd main surface 3b side. The first screw type terminal block 10 and the second screw type terminal block 20 are arranged on different sides with respect to the main wiring board 3. The electrical wiring device 1 according to the present embodiment can improve the degree of freedom of arrangement of the first screw type terminal block 10 and the second screw type terminal block 20.

In the electric wiring device 1 of the present embodiment, the main wiring board 3 has a first connector 3c and a second connector 3d. The first sub wiring board 15 is inserted into the first connector 3c. The second sub wiring board 25 is inserted into the second connector 3d. According to the electrical wiring device 1 of the present embodiment, the first sub wiring board 15 and the second sub wiring board 25 can be easily and stably connected to the main wiring board 3.

Embodiment 2.
The electric wiring device 1a according to the second embodiment will be described with reference to FIG. The electric wiring device 1a of the present embodiment has the same configuration as the electric wiring device 1 of the first embodiment, but mainly differs in the following points.

The second normal 23 of the second terminal surface 24 of the second screw type terminal block 20 has a twisted position with respect to the first normal 13 of the first terminal surface 14 of the first screw type terminal block 10. It is in.

The electric wiring device 1a of the present embodiment further includes a third screw type terminal block 30 and a third sub wiring board 35. In the electric wiring device 1a of the present embodiment, the main wiring board 3 further includes a third connector 3e.

The third screw terminal block 30 has one or more third screw terminals 31 and one or more third screws 32. In the present embodiment, the third screw type terminal block 30 has three third screw terminals 31 and three third screws 32. The third screw terminal 31 may be made of a conductive material such as copper (Cu). The third screw terminal 31 has a third terminal surface 34 that faces the third sub wiring board 35. The third normal line 33 is a normal line of the third terminal surface 34.

The third terminal surface 34 of the third screw terminal 31 is arranged on a plane different from the first terminal surface 14 of the first screw terminal 11 and the second terminal surface 24 of the second screw terminal 21. The third terminal surface 34 of the third screw terminal 31 is not coplanar with the first terminal surface 14 of the first screw terminal 11 and the second terminal surface 24 of the second screw terminal 21. The third terminal surface 34 of the third screw terminal 31 is not arranged on the first terminal surface 14 of the first screw terminal 11 or an extension plane thereof. The third terminal surface 34 of the third screw terminal 31 is not arranged on the second terminal surface 24 of the second screw terminal 21 or on the extension plane thereof. The third normal 33 of the third terminal surface 34 is in a twisted position relationship with the first normal 13 of the first terminal surface 14. The third terminal surface 34 may be parallel to the second terminal surface 24. The third normal line 33 may be parallel to the second normal line 23.

The third screw 32 may be made of a conductive material. The third screw terminal 31 is provided with a hole (not shown) for receiving the third screw 32. The third screw terminal 31 may be arranged in the recess of the third resin block. The plurality of third screw terminals 31 may be electrically insulated from each other by the protrusion of the third resin block. The third screw type terminal block 30 may further include a screw 39. The screw 39 electrically and mechanically connects a wiring or a printed circuit board (not shown) to the third screw terminal 31.

The third sub-wiring board 35 includes a third sub-wiring (not shown) made of a thin film conductor on the surface and/or the inside of the third sub-wiring board 35. The third sub wiring board 35 may be a printed board. The third sub wiring board 35 extends in a direction (x direction) intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. Specifically, the third sub wiring board 35 may extend in a direction (x direction) orthogonal to the first main surface 3a and the second main surface 3b of the main wiring board 3. The third sub wiring board 35 may include a plurality of third legs 36. The third leg portion 36 may extend in a direction (z direction) along the first main surface 3a of the main wiring board 3. The plurality of third legs 36 may be separated from each other by a slit. The third sub wiring board 35 is provided with a third hole (not shown) that receives the third screw 32. The third hole may be provided in each of the plurality of third leg portions 36.

The third sub wiring board 35 is electrically and mechanically connected to the one or more third screw terminals 31 by using the third screw 32. The third leg portion 36 of the third sub wiring board 35 is fixed to the third screw terminal 31 by using the third screw 32. The third leg portion 36 of the third sub wiring board 35 may be arranged in the recess of the third resin block. The third sub-wiring board 35 contacts the third terminal surface 34 of the third screw terminal 31. Specifically, the third leg portion 36 of the third sub wiring board 35 is in surface contact with the third terminal surface 34 of the third screw terminal 31. A part of the third sub wiring of the third sub wiring board 35 is provided on the surface of the third sub wiring board 35 facing the third screw terminal 31 or on the third hole. The third sub wiring of the third sub wiring board 35 is electrically connected to the third screw terminal 31.

The main wiring board 3 mechanically supports and electrically connects the first sub wiring board 15, the second sub wiring board 25, and the third sub wiring board 35. The first sub wiring board 15, the second sub wiring board 25, and the third sub wiring board 35 may be mechanically supported at different positions with respect to the main wiring board 3. The third connector 3e mechanically connects the third sub wiring board 35 to the main wiring board 3. The third sub wiring board 35 may be inserted into the third connector 3e. The third connector 3e may be a hole penetrating between the first main surface 3a and the second main surface 3b. The third sub wiring board 35 may be fitted to the third connector 3e. Specifically, the end portion of the third sub wiring board 35 on the main wiring board 3 side may be fitted to the third connector 3e.

In the electric wiring device 1a of the present embodiment, the number of screw type terminal blocks is three, but the number of screw type terminal blocks may be four or more. The number of sub wiring boards may be increased as the number of screw type terminal blocks is increased.

The effects of the electric wiring device 1a of the present embodiment have the following effects in addition to the effects of the electric wiring device 1 of the first embodiment.

The first normal line 13 of the first terminal surface 14 of the first screw type terminal block 10 has a twisted position relative to the second normal line 23 of the second terminal surface 24 of the second screw type terminal block 20. Even so, the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 via the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. And can be mechanically connected. The electric wiring device 1a according to the present embodiment can improve the degree of freedom of arrangement of the first screw type terminal block 10 and the second screw type terminal block 20.

In the electric wiring device 1a of the present embodiment, the plurality of screw type terminal blocks (the first screw type terminal block 10, the second screw type terminal block 20, and the third screw type terminal block 30) are arranged in plural numbers. The sub wiring boards (first sub wiring board 15, second sub wiring board 25, third sub wiring board 35) and the main wiring board 3 are electrically and mechanically connected to each other. The electric wiring device 1a of the present embodiment can easily increase the number of screw type terminal blocks electrically and mechanically connected to each other to three or more.

Embodiment 3.
An electric wiring device 1b according to the third embodiment will be described with reference to FIG. The electric wiring device 1b of the present embodiment has the same configuration as the electric wiring device 1 of the first embodiment, but mainly differs in the following points.

The electrical wiring device 1b of the present embodiment further includes electronic devices (8a, 8b, 8c, 8d) mounted on at least one of the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. Prepare Specifically, the electronic devices (8a, 8b, 8c, 8d) may be mounted on each of the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The electronic devices (8a, 8b, 8c, 8d) are not particularly limited, but may be, for example, capacitors 8a, transformers 8b, chip resistors 8c, integrated circuits 8d, reactors, transistors, noise reduction circuits, or sensor circuits. Specifically, the capacitor 8a may be mounted on the first sub wiring board 15. The capacitor 8a is electrically connected to the first sub wiring of the first sub wiring board 15. The transformer 8b may be mounted on the main wiring board 3. The transformer 8b is electrically connected to the main wiring of the main wiring board 3. The chip resistor 8c and the integrated circuit 8d may be mounted on the second sub wiring board 25. The chip resistor 8c and the integrated circuit 8d are electrically connected to the second sub wiring of the second sub wiring substrate 25.

The effects of the electric wiring device 1b of the present embodiment have the following effects in addition to the effects of the electric wiring device 1 of the first embodiment. The electrical wiring device 1b of the present embodiment further includes electronic devices (8a, 8b, 8c, 8d) mounted on at least one of the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. Prepare The main wiring board 3, the first sub-wiring board 15, and the second sub-wiring board 25 each have higher rigidity than the lead wire. The electronic devices (8a, 8b, 8c, 8d) can be easily mounted on at least one of the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. The electric wiring device 1b of the present embodiment may have various electric circuit functions.

Fourth Embodiment
An electric wiring device 1c according to the fourth embodiment will be described with reference to FIG. The electric wiring device 1c of the present embodiment has the same configuration as the electric wiring device 1 of the first embodiment, but mainly differs in the following points.

In the electric wiring device 1c of the present embodiment, the main wiring board 3 includes at least one of the first reinforcing member 9a and the second reinforcing member 9b. Specifically, the main wiring board 3 may include both the first reinforcing member 9a and the second reinforcing member 9b.

The first reinforcing member 9a reinforces the mechanical connection between the first sub wiring board 15 and the main wiring board 3. The first reinforcing member 9a may be fixed to the main wiring board 3 and the first sub wiring board 15 by using a fixing means such as solder or screws. The first reinforcing member 9a may contact the first main surface 3a of the main wiring board 3 and the first sub wiring board 15. The first reinforcing member 9a may be in surface contact with the first main surface 3a of the main wiring board 3 and the first sub wiring board 15. The first reinforcing member 9a may be made of a metal material such as copper (Cu) or aluminum (Al). The first reinforcing member 9a may be an electronic device or a jumper wire.

The second reinforcing member 9b reinforces the mechanical connection between the second sub wiring board 25 and the main wiring board 3. The second reinforcing member 9b may be fixed to the main wiring board 3 and the second sub wiring board 25 by using a fixing means such as solder or screws. The second reinforcing member 9b may contact the second main surface 3b of the main wiring board 3 and the second sub wiring board 25. The second reinforcing member 9b may be in surface contact with the second main surface 3b of the main wiring board 3 and the second sub wiring board 25. The second reinforcing member 9b may be made of a metal material such as copper (Cu) or aluminum (Al), for example. The second reinforcing member 9b may be an electronic device or a jumper wire.

The effects of the electric wiring device 1c of the present embodiment have the following effects in addition to the effects of the electric wiring device 1 of the first embodiment.

In the electric wiring device 1c of the present embodiment, the main wiring board 3 includes at least one of the first reinforcing member 9a and the second reinforcing member 9b. The first reinforcing member 9a reinforces the mechanical connection between the first sub wiring board 15 and the main wiring board 3. The second reinforcing member 9b reinforces the mechanical connection between the second sub wiring board 25 and the main wiring board 3. The electric wiring device 1c of the present embodiment has further improved resistance to mechanical vibration. In the electric wiring device 1c of the present embodiment, even if the first screw-type terminal block 10 is a part of a heavy electric component such as a contactor, the main wiring board 3 and the first reinforcing member. 9a can support the first screw type terminal block 10 and the first electric component. In the electric wiring device 1c of the present embodiment, even if the second screw-type terminal block 20 is a part of a heavy electric component such as a contactor, the main wiring board 3 and the second reinforcing member. 9b can support the 2nd screw type terminal block 20 and the 2nd electric component.

Embodiment 5.
An electric wiring device 1d according to the fifth embodiment will be described with reference to FIG. The electric wiring device 1d of the present embodiment has the same configuration as the electric wiring device 1 of the first embodiment, but mainly differs in the following points.

The first leg portion 16 of the first sub wiring board 15 extends in the direction (y direction) along the first main surface 3a of the main wiring board 3 and the third main surface 4a of the first support plate 4. The second normal 23 of the second terminal surface 24 of the second screw type terminal block 20 has a twisted position with respect to the first normal 13 of the first terminal surface 14 of the first screw type terminal block 10. It is in. The second leg portion 26 extends in the direction (z direction) along the second main surface 3b of the main wiring board 3.

The electric wiring device 1d of the present embodiment further includes at least one of the first support plate 4 and the second support plate 5. Specifically, the electric wiring device 1d of the present embodiment includes both the first support plate 4 and the second support plate 5. The first support plate 4 supports the first sub wiring board 15. The second support plate 5 supports the second sub wiring board 25. The first sub wiring board 15 is supported by the main wiring board 3 and the first support plate 4. The second sub wiring board 25 is supported by the main wiring board 3 and the second support plate 5.

The first support plate 4 has a third main surface 4a facing the first main surface 3a of the main wiring board 3 and a fourth main surface 4b opposite to the third main surface 4a. The first support plate 4 may be arranged parallel to the main wiring board 3. The first support plate 4 may or may not include a wiring made of a thin film conductor on the surface and/or the inside of the first support plate 4. The wiring included in the first support plate 4 may be electrically connected to the first sub wiring of the first sub wiring board 15. The first sub wiring board 15 may be joined to the main wiring board 3 and the first support plate 4 using solder. The first support plate 4 may include a third connector 4c. The third connector 4c may be a hole penetrating between the third main surface 4a and the fourth main surface 4b.

The first sub wiring board 15 may be supported by the main wiring board 3 and the first support plate 4 by using connectors (first connector 3c, third connector 4c). The third connector 4c mechanically connects the first sub wiring board 15 to the first support plate 4. The first sub wiring board 15 may be inserted into the first connector 3c and the third connector 4c. One end of the first sub wiring board 15 may be fitted to the first connector 3c, and the opposite end of the first sub wiring board 15 may be fitted to the third connector 4c. The first leg portion 16 of the first sub wiring board 15 is located between one end portion and the opposite end portion of the first sub wiring board 15.

The second support plate 5 has a fifth main surface 5a facing the second main surface 3b of the main wiring board 3 and a sixth main surface 5b opposite to the fifth main surface 5a. The second support plate 5 may be arranged parallel to the main wiring board 3. The second support plate 5 may or may not include a wiring made of a thin film conductor on the surface and/or the inside of the second support plate 5. This wiring included in the second support plate 5 may be electrically connected to the second sub wiring of the second sub wiring board 25. The second sub wiring board 25 may be joined to the main wiring board 3 and the second support plate 5 using solder. The second support plate 5 may include a fourth connector 5c. The fourth connector 5c may be a hole penetrating between the fifth main surface 5a and the sixth main surface 5b.

The second sub wiring board 25 may be supported by the main wiring board 3 and the second support plate 5 by using connectors (second connector 3d, fourth connector 5c). The fourth connector 5c mechanically connects the second sub wiring board 25 to the second support plate 5. The second sub wiring board 25 may be inserted into the second connector 3d and the fourth connector 5c. One end of the second sub wiring board 25 may be fitted to the second connector 3d, and the other end of the second sub wiring board 25 may be fitted to the fourth connector 5c. The second leg portion 26 of the second sub wiring board 25 is located between one end portion and the opposite end portion of the second sub wiring board 25.

The effects of the electric wiring device 1d of the present embodiment have the following effects in addition to the effects of the electric wiring device 1 of the first embodiment.

The electric wiring device 1d of the present embodiment further includes at least one of the first support plate 4 and the second support plate 5. The first support plate 4 supports the first sub wiring board 15. The second support plate 5 supports the second sub wiring board 25. The electric wiring device 1d of the present embodiment has further improved resistance to mechanical vibration. According to the electric wiring device 1d of the present embodiment, even if the first screw type terminal block 10 is a part of a heavy electric component such as a contactor, the first screw type terminal block 10 and the first wiring terminal block 10 are not connected to each other. The support plate 4 can support the first screw type terminal block 10 and the first electric component. According to the electric wiring device 1d of the present embodiment, even if the second screw type terminal block 20 is a part of a heavy electric component such as a contactor, the second wiring type terminal block 20 and the second wiring terminal block 20 are not connected to each other. The support plate 5 can support the second screw type terminal block 20 and the second electric component.

The electric wiring device 1d of the present embodiment further includes at least one of the first support plate 4 and the second support plate 5 in addition to the main wiring board 3. The main wiring board 3 and at least one of the first support plate 4 and the second support plate 5 can stand on their own to support the first screw type terminal block 10 and the second screw type terminal block 20. Compared with a comparative example in which the first screw type terminal block 10 is electrically connected to the second screw type terminal block 20 using lead wires and crimp terminals, the electric wiring device 1d of the present embodiment is It is possible to reduce the number and size of components that support the one screw type terminal block 10 and the second screw type terminal block 20.

Sixth Embodiment
An electrical wiring device 1e according to the sixth embodiment will be described with reference to FIGS. 7 and 8. The electric wiring device 1e of the present embodiment has the same configuration as the electric wiring device 1 of the first embodiment, but mainly differs in the following points.

In the electric wiring device 1e of the present embodiment, the first screw type terminal block 10 is included in the first electric component 60. The first screw type terminal block 10 is a part of the first electric component 60. In the present embodiment, the first electric component 60 is a contactor. The first electric component 60 is not limited to a contactor, and may be, for example, a relay or a power module. The first screw terminals 11 adjacent to each other are arranged on one side surface of the first electric component 60 at a first distance p ₁ . The first distance p ₁ between the first screw terminals 11 adjacent to each other is defined as the distance between the centers of the first screws 12 adjacent to each other that are fastened to the first screw terminals 11 adjacent to each other.

In the electric wiring device 1e of the present embodiment, the first electric component 60 includes the third screw type terminal block 30 on the side surface on which the first screw type terminal block 10 is arranged. The third screw type terminal block 30 is a part of the first electric component 60. The first screw type terminal block 10 and the third screw type terminal block 30 are arranged on the first main surface 3 a side of the main wiring board 3. The third screw type terminal block 30 is arranged below the first screw type terminal block 10. The third screw type terminal block 30 projects toward the main wiring board 3 side more than the first screw type terminal block 10.

The third screw terminal block 30 has one or more third screw terminals 31 and one or more third screws 32. The third screw terminal 31 and the third screw 32 may have the same structure as the first screw terminal 11 and the first screw 12, respectively. The first sub wiring board 15 has a first through hole 51 larger than the third screw 32. The third screw 32 is fastened to the third screw terminal 31 through the first through hole 51. The third terminal surface 34 of the third screw terminal 31 is arranged on a plane different from the first terminal surface 14 of the first screw terminal 11. Specifically, the third terminal surface 34 of the third screw terminal 31 is arranged below the first terminal surface 14 of the first screw terminal 11 (−z direction). The third terminal surface 34 of the third screw terminal 31 may be parallel to the first terminal surface 14 of the first screw terminal 11.

The first electrical component 60 may include another threaded terminal block on the other side of the first electrical component 60 that includes one or more screw terminals 18 and one or more screws 19. The screw 19 electrically and mechanically connects a wiring or a printed circuit board (not shown) to the screw terminal 18.

The electric wiring device 1e of the present embodiment further includes a third sub wiring board 35. The third sub-wiring board 35 includes a third sub-wiring (not shown) made of a thin film conductor on the surface and/or the inside of the third sub-wiring board 35. The third sub wiring board 35 may be a printed board. The third sub wiring board 35 extends in a direction (x direction) intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. Specifically, the third sub wiring board 35 may extend in a direction (x direction) orthogonal to the first main surface 3a and the second main surface 3b of the main wiring board 3. The third sub wiring board 35 may include a plurality of third legs 36. The plurality of third legs 36 may be separated from each other by a slit. The third sub wiring board 35 is electrically and mechanically connected to the third screw terminal 31 using the third screw 32. Specifically, the third leg portion 36 of the third sub wiring board 35 is fixed to the third screw terminal 31 by using the third screw 32.

The third sub wiring board 35 is mechanically supported and electrically connected to the main wiring board 3. The main wiring board 3 may further include a third connector 3e in addition to the first connector 3c. The third connector 3e mechanically connects the third sub wiring board 35 to the main wiring board 3. The third sub wiring board 35 may be inserted into the third connector 3e. The third connector 3e may be a hole penetrating between the first main surface 3a and the second main surface 3b. The third sub wiring board 35 may be fitted to the third connector 3e. Specifically, the end portion of the third sub wiring board 35 on the main wiring board 3 side may be fitted to the third connector 3e. The end of the third sub-wiring board 35 on the main wiring board 3 side may be an end on the side opposite to the third leg 36 side.

In the electric wiring device 1e of the present embodiment, the second screw type terminal block 20 is included in the second electric component 70. The second screw type terminal block 20 is a part of the second electric component 70. In the present embodiment, the second electric component 70 is a contactor. The second electric component 70 is not limited to a contactor and may be, for example, a relay or a power module.

The second electrical component 70 has a different size than the first electrical component 60. Specifically, the second electrical component 70 may have a smaller size than the first electrical component 60. The second screw type terminal block 20 has a size different from that of the first screw type terminal block 10. In particular, the second screw terminal block 20 may have a smaller size than the first screw terminal block 10. The second screw terminals 21 adjacent to each other are arranged on one side surface of the second electric component 70 at the second distance p ₂ . The second distance p ₂ between the second screw terminals 21 adjacent to each other is defined as the distance between the centers of the second screws 22 adjacent to each other that are fastened to the second screw terminals 21 adjacent to each other. The first distance p ₁ between the plurality of first screw terminals 11 adjacent to each other is different from the second distance p ₂ between the plurality of second screw terminals 21 adjacent to each other. Specifically, the second distance p ₂ between the plurality of second screw terminals 21 adjacent to each other may be smaller than the first distance p ₁ between the plurality of first screw terminals 11 adjacent to each other. Good.

As shown in FIG. 8, the second terminal surface 24 of the second screw terminal 21 is on a plane different from the first terminal surface 14 of the first screw terminal 11 and the third terminal surface 34 of the third screw terminal 31. Will be placed. Specifically, the second terminal surface 24 of the second screw terminal 21 is located below the first terminal surface 14 of the first screw terminal 11 and the third terminal surface 34 of the third screw terminal 31 (-z direction). Will be placed.

In the electric wiring device 1e of the present embodiment, the second electric component 70 includes the fourth screw type terminal block 40 on the side surface on which the second screw type terminal block 20 is arranged. The fourth screw type terminal block 40 is a part of the second electric component 70. The second screw type terminal block 20 and the fourth screw type terminal block 40 are arranged on the first main surface 3 a side of the main wiring board 3. The fourth screw type terminal block 40 is arranged below the second screw type terminal block 20. The fourth screw type terminal block 40 projects toward the main wiring board 3 side more than the second screw type terminal block 20. The fourth screw type terminal block 40 has one or more fourth screw terminals 41 and one or more fourth screws 42. The fourth screw terminal 41 has a fourth terminal surface 44 facing the fourth sub wiring board 45. The fourth screw terminal 41 and the fourth screw 42 may have the same structures as the second screw terminal 21 and the second screw 22, respectively. The second sub wiring board 25 has a second through hole 52 larger than the fourth screw 42. The fourth screw 42 is fastened to the fourth screw terminal 41 through the second through hole 52.

As shown in FIG. 8, the fourth terminal surface 44 of the fourth screw terminal 41 is arranged on a plane different from the second terminal surface 24 of the second screw terminal 21. Specifically, the fourth terminal surface 44 of the fourth screw terminal 41 is arranged below the second terminal surface 24 of the second screw terminal 21 (−z direction). The fourth terminal surface 44 of the fourth screw terminal 41 may be parallel to the second terminal surface 24 of the second screw terminal 21. The fourth terminal surface 44 of the fourth screw terminal 41 is arranged on a plane different from the first terminal surface 14 of the first screw terminal 11 and the third terminal surface 34 of the third screw terminal 31. Specifically, the fourth terminal surface 44 of the fourth screw terminal 41 is located below the first terminal surface 14 of the first screw terminal 11 and the third terminal surface 34 of the third screw terminal 31 (-z direction). Will be placed.

The second electrical component 70 may include another threaded terminal block on the other side of the second electrical component 70 that includes one or more screw terminals 28 and one or more screws 29. The screw 29 electrically and mechanically connects a wiring (not shown) or a printed circuit board to the screw terminal 28.

The electric wiring device 1e of the present embodiment further includes a fourth sub wiring board 45. The fourth sub-wiring board 45 includes a fourth sub-wiring (not shown) made of a thin film conductor on the surface and/or the inside of the fourth sub-wiring board 45. The fourth sub wiring board 45 may be a printed board. The fourth sub wiring board 45 extends in a direction (x direction) intersecting the first main surface 3a and the second main surface 3b of the main wiring board 3. Specifically, the fourth sub wiring board 45 may extend in a direction (x direction) orthogonal to the first main surface 3a and the second main surface 3b of the main wiring board 3. The fourth sub wiring board 45 may include a plurality of fourth leg portions 46. The plurality of fourth legs 46 may be separated from each other by slits. The fourth sub wiring board 45 is electrically and mechanically connected to the fourth screw terminal 41 by using the fourth screw 42. Specifically, the fourth leg portion 46 of the fourth sub wiring board 45 is fixed to the fourth screw terminal 41 using the fourth screw 42.

The fourth sub wiring board 45 is mechanically supported and electrically connected to the main wiring board 3. The first sub wiring board 15, the second sub wiring board 25, the third sub wiring board 35, and the fourth sub wiring board 45 may be mechanically supported at different positions with respect to the main wiring board 3. The main wiring board 3 may further include a fourth connector 3f in addition to the second connector 3d. The fourth connector 3f mechanically connects the fourth sub wiring board 45 to the main wiring board 3. The fourth sub wiring board 45 may be inserted into the fourth connector 3f. The fourth connector 3f may be a hole penetrating between the first main surface 3a and the second main surface 3b. The fourth sub wiring board 45 may be fitted to the fourth connector 3f. Specifically, the end of the fourth sub wiring board 45 on the main wiring board 3 side may be fitted to the fourth connector 3f. The end of the fourth sub wiring board 45 on the main wiring board 3 side may be the end on the side opposite to the fourth leg 46 side.

The effects of the electrical wiring device 1e of the present embodiment have the following effects in addition to the effects of the electrical wiring device 1 of the first embodiment.

In the electric wiring device 1e of the present embodiment, the first screw type terminal block 10 and the second screw type terminal block 20 are arranged on the first main surface 3a side. Since the first screw type terminal block 10 and the second screw type terminal block 20 are not arranged on the second main surface 3b side of the main wiring board 3, the installation space of the electric wiring device 1e of the present embodiment can be reduced. ..

In the electric wiring device 1e of the present embodiment, the second screw type terminal block 20 has a size different from that of the first screw type terminal block 10. According to the electric wiring device 1e of the present embodiment, even if the second screw type terminal block 20 has a size different from that of the first screw type terminal block 10, the first screw type terminal block 10 is The first sub-wiring board 15, the second sub-wiring board 25, and the main wiring board 3 can be electrically and mechanically connected to the second screw type terminal block 20.

In the electric wiring device 1e of the present embodiment, the one or more first screw terminals 11 are a plurality of first screw terminals 11. In the electric wiring device 1e of the present embodiment, the one or more second screw terminals 21 are a plurality of second screw terminals 21. The first distance p ₁ between the plurality of first screw terminals 11 adjacent to each other is different from the second distance p ₂ between the plurality of second screw terminals 21 adjacent to each other. According to the electrical wiring device 1e of the present embodiment, the first distance p ₁ between the plurality of first screw terminals 11 adjacent to each other is the second distance between the plurality of second screw terminals 21 adjacent to each other. Even if it is different from p ₂ , the first screw type terminal block 10 has the second screw type terminal block through the first sub wiring board 15, the second sub wiring board 25, and the main wiring board 3. 20 may be electrically and mechanically connected.

In the electric wiring device 1e of the present embodiment, the first screw type terminal block 10 and the third screw type terminal block 30 are included in the first electric component 60. The first electric component 60 is supported by the main wiring board 3 via the first sub wiring board 15 and the third sub wiring board 35. According to the electrical wiring device 1e of the present embodiment, even if the first electrical component 60 is a heavy electrical component such as a contactor, the first electrical component 60 is firmly and reliably supported by the main wiring board 3. obtain.

In the electric wiring device 1e of the present embodiment, the second screw type terminal block 20 and the fourth screw type terminal block 40 are included in the second electric component 70. The second electric component 70 is supported by the main wiring board 3 via the second sub wiring board 25 and the fourth sub wiring board 45. According to the electric wiring device 1e of the present embodiment, even if the second electric component 70 is a heavy electric component such as a contactor, the second electric component 70 is firmly and reliably supported by the main wiring board 3. obtain.

In the electric wiring device 1e of the present embodiment, the first screw type terminal block 10 is included in the first electric component 60. The second screw type terminal block 20 is included in the second electric component 70. According to the electrical wiring device 1e of the present embodiment, the first electrical component 60 includes the second electrical component 60 via the first sub wiring substrate 15, the second sub wiring substrate 25, and the main wiring substrate 3. It may be electrically and mechanically connected to the component 70.

It should be considered that the first to sixth embodiments disclosed this time are exemplifications in all points and not restrictive. Unless there is a contradiction, at least two of the first to sixth embodiments disclosed herein may be combined. The scope of the present invention is shown not by the above description but by the scope of the claims, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.

1, 1a, 1b, 1c, 1d, 1e Electric wiring device, 3 main wiring board, 3a 1st main surface, 3b 2nd main surface, 3c 1st connector, 3d 2nd connector, 3e, 4c 3rd connector, 3f , 5c 4th connector, 4 1st support plate, 4a 3rd main surface, 4b 4th main surface, 5 2nd support plate, 5a 5th main surface, 5b 6th main surface, 8a capacitor, 8b transformer, 8c chip Resistor, 8d integrated circuit, 9a first reinforcing member, 9b second reinforcing member, 10 first screw terminal block, 11 first screw terminal, 12 first screw, 13 first normal line, 14 first terminal surface , 15 1st sub wiring board, 16 1st leg part, 17 1st hole, 18, 28 screw terminal, 19, 29, 39 screw, 20 2nd screw type terminal block, 21 2nd screw terminal, 22 2 screw, 23 2nd normal line, 24 2nd terminal surface, 25 2nd sub wiring board, 26 2nd leg part, 27 2nd hole, 30 3rd screw type terminal block, 31 3rd screw terminal, 32 3rd screw, 33 3rd normal, 34 3rd terminal surface, 35 3rd sub-wiring board, 36 3rd leg, 40 4th screw type terminal block, 41 4th screw terminal, 42 4th Screw, 44 fourth terminal surface, 45 fourth sub wiring board, 46 fourth leg portion, 51 first through hole, 52 second through hole, 60 first electrical component, 70 second electrical component.

Claims (13)

A first screw terminal block having one or more first screw terminals and one or more first screws;
A second screw terminal block having one or more second screw terminals and one or more second screws;
A first sub-wiring board electrically and mechanically connected to the one or more first screw terminals by using the one or more first screws;
A second sub-wiring board electrically and mechanically connected to the one or more second screw terminals using the one or more second screws;
A main wiring board that mechanically supports and electrically connects the first sub wiring board and the second sub wiring board ;
At least one of a first support plate and a second support plate ,
A first terminal surface of the one or more first screw terminals is arranged on a plane different from a second terminal surface of the one or more second screw terminals,
The main wiring board has a first main surface and a second main surface facing the first main surface,
The first sub-wiring board and the second sub-wiring board extends in a direction crossing the first main surface and the second major surface,
The first support plate supports the first sub wiring board,
The second support plate supports the second sub wiring board,
An electric wiring device , wherein the main wiring board and the at least one of the first support plate and the second support plate are self-supporting to support the first screw type terminal block and the second screw type terminal block . The electrical wiring device according to claim 1, wherein the first normal line of the first terminal surface has a twisted position relationship with the second normal line of the second terminal surface. The electric wiring device according to claim 1, wherein the first terminal surface is parallel to the second terminal surface. The first screw type terminal block is arranged on the first main surface side,
The electrical wiring device according to claim 1, wherein the second screw type terminal block is arranged on the second main surface side. The electric wiring device according to any one of claims 1 to 3, wherein the first screw type terminal block and the second screw type terminal block are arranged on the first main surface side. The main wiring board has a first connector and a second connector,
The first sub wiring board is inserted in the first connector,
The electric wiring device according to claim 1, wherein the second sub-wiring board is inserted in the second connector. The main wiring board includes at least one of a first reinforcing member and a second reinforcing member,
The first reinforcing member reinforces mechanical connection between the first sub wiring board and the main wiring board,
7. The electric wiring device according to claim 1, wherein the second reinforcing member reinforces mechanical connection between the second sub wiring board and the main wiring board. The electric wiring device according to claim 1, further comprising an electronic device mounted on at least one of the first sub wiring board, the second sub wiring board, and the main wiring board. .. It said second screw type terminal block, the first having a threaded terminal block with different sizes, the electric wiring apparatus according to any one of claims 1 to 8. The one or more first screw terminals are a plurality of first screw terminals,
The one or more second screw terminals are a plurality of second screw terminals,
First distances between the plurality of first screw terminals adjacent to each other is different from the second distance between the plurality of second screw terminals adjacent to each other, any of claims 1 to 9 The electric wiring device according to Item 1. The first screw type terminal block is included in the first electrical component,
The electric wiring device according to any one of claims 1 to 10 , wherein the second screw type terminal block is included in the second electric component. The electrical wiring device according to any one of claims 1 to 10 , wherein the first screw type terminal block and the second screw type terminal block are included in a first electric component. The electrical wiring device according to claim 11 or 12 , wherein the first electrical component is any one of a contactor, a relay, and a power module.

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