WO2018150727A1

WO2018150727A1 - Lead wire terminal block and electric apparatus connection socket provided with same

Info

Publication number: WO2018150727A1
Application number: PCT/JP2017/045957
Authority: WO
Inventors: 謹斎町田; 浜田　佳伸; 菅原　聡
Original assignee: 富士電機機器制御株式会社
Priority date: 2017-02-16
Filing date: 2017-12-21
Publication date: 2018-08-23
Also published as: CN109075468B; JP6579282B2; EP3439113A4; JPWO2018150727A1; EP3439113A1; EP3439113B1; CN109075468A

Abstract

The present invention is provided with: lead wire inserting holes L1-L12 that are formed in terminal surfaces (8A-8C) of a case (2); and a plurality of lead wire connecting sections (H1-H12), which are disposed on the case side, and which electrically connect, to contact points, core wires (35, 36) of lead wires inserted through the lead wire inserting holes. The lead wire inserting holes are arrayed in a zigzag manner.

Description

Lead wire terminal block and electrical equipment connection socket including the same

The present invention relates to a lead wire terminal block to which a large number of lead wires are connected and an electric equipment connection socket having the lead wire terminal block.

As an electrical equipment connection socket, for example, an apparatus disclosed in Patent Document 1 is known.
The electrical device connection socket of Patent Document 1 is a device that connects electrical devices such as relays and timers to an external circuit via lead wires, and is provided with an electrical device terminal block and a lead wire terminal block.
The terminal block of the electrical equipment has a terminal surface formed on the surface of the case, a plug-in terminal insertion hole is formed in the terminal surface, and a connection part that connects to the plug-in terminal inserted from the plug-in terminal insertion hole is arranged inside the case. ing.
The lead wire terminal block has a multi-level terminal surface formed on the surface of the case, and lead wire insertion holes are formed on the terminal surface of each step, and connected to the core wire of the lead wire inserted from the lead wire insertion hole The part is arranged inside the case.
A relay conductive plate that electrically connects the connection portion of the electric equipment terminal block and the connection portion of the lead wire terminal block is disposed inside the case.

By the way, for example, an electrical device connection socket to which a relay with a 4-pole contact is mounted has a large number of plug-in terminals protruding (14 plug-in terminals with a 4-pole contact relay). The number of plug-in terminal insertion holes and connection portions provided in the terminal block) increases, and the lead wire terminal block also needs to have lead wire insertion holes and connection portions corresponding to the number of relay terminal portions.
And the lead wire insertion hole of the lead wire terminal block is usually a hole for inserting a signal lead wire and a hole for inserting a distribution lead wire (for different polarity contacts of the same socket, for crossover wiring). Two lead wire insertion holes are formed in each set.

JP 2002-298934 A

As described above, the lead wire terminal block of the electrical equipment connection socket to which the multi-pole contact relay (for example, the 4-pole contact relay) is mounted is connected in a state where a large number of lead wires such as signal wires and distribution wires are densely packed. Therefore, the display of symbols and characters displayed on the mark tube attached to the end side of the lead wire cannot be easily confirmed.
Accordingly, the present invention provides a lead wire terminal block that can easily check the display of an arc tube attached to the end side of each lead wire even when a large number of lead wires are connected, and an electric device including the lead wire terminal block It aims to provide a connection socket.

In order to achieve the above object, a lead wire terminal block according to one aspect of the present invention includes a lead wire insertion hole formed in the terminal surface of the case, and a lead disposed on the case side and inserted from the lead wire insertion hole. A plurality of lead wire connecting portions for electrically connecting the core wires of the wires to the contacts, and the plurality of lead wire insertion holes are arranged in a staggered shape.
In particular, the plurality of lead wire insertion holes are formed on two reference lines extending parallel to each other along the terminal surface, and two lead wire insertion holes formed on one of the two reference lines. The lead wire insertion holes formed on the other of the reference lines are arranged in a staggered pattern so as not to coincide with each other in a direction perpendicular to the reference line.

Moreover, the electrical equipment connection socket provided with the lead wire terminal block according to an aspect of the present invention includes the electrical equipment terminal block provided with the electrical equipment connection portion that electrically connects electrical equipment such as a relay and a timer, and A lead wire terminal block, and an electrical equipment connecting portion and a relay conductive member that electrically connects the lead wire connecting portion are provided.

According to the lead wire terminal block and the electrical equipment connection socket including the lead wire terminal block according to the present invention, even if a large number of lead wires are connected, the display of the mark tube attached to the end side of each lead wire can be easily confirmed. can do.

It is a perspective view which shows the surface side of the electric equipment connection socket of 1st Embodiment which concerns on this invention. It is a perspective view which shows the side surface and back surface side of the electric equipment connection socket of 1st Embodiment which concern on this invention. It is a top view of the electric equipment connection socket of a 1st embodiment concerning the present invention. It is a figure which shows the inside of the electric equipment connection socket of 1st Embodiment which concerns on this invention. It is a perspective view which shows the lead connection part arrange | positioned inside the electric equipment connection socket of 1st Embodiment which concerns on this invention. It is a perspective view which shows the electrically-conductive metal fitting which comprises the lead connection part shown in FIG. It is a perspective view which shows the spring member which comprises the lead connection part shown in FIG. The opening position of the lead wire insertion hole and tool insertion hole with respect to a lead wire connection part is shown. (A) is a figure which shows the several lead wire insertion hole arrange | positioned by the staggered shape which concerns on this invention, (b) is a figure of the conventional apparatus which has arrange | positioned the several lead wire insertion hole in the straight line form.

Next, a first embodiment of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.
The first embodiment described below exemplifies an apparatus and method for embodying the technical idea of the present invention, and the technical idea of the present invention is the material, shape, and structure of component parts. The arrangement is not specified below. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.

FIG. 1 is a perspective view showing a front surface side of an electrical device connection socket (hereinafter referred to as a socket) 1 of a first embodiment formed in a rectangular parallelepiped shape, and FIG. 2 shows a side surface and a back surface side of the socket 1. A perspective view and FIG. 3 are plan views of the socket 1. 1 to 3 and other figures, the longitudinal direction of the socket is referred to as the long direction, and the direction orthogonal to the long direction is referred to as the short direction.
The socket 1 includes a case 2 and a base 3 made of synthetic resin.
The base 3 is provided with

rail mounting portions

4a and 4b. The

rail mounting portions

4a and 4b are members for detachably mounting the socket 1 on rails arranged on a switchboard or the like (not shown).

A first lead wire terminal block 5 is formed at one end of the socket 1 in the longitudinal direction, a second lead wire terminal block 6 is formed at the other end of the socket 1 in the longitudinal direction, and the first lead wire terminal block 5 and the second lead wire are formed. A relay terminal block 7 is formed on the bottom surface of the recess formed between the terminal blocks 6.
The first lead wire terminal block 5 includes a plurality of first to

third terminal surfaces

8A, 8B, and 8C having different heights on the surface of the case 2.
In this embodiment, a lead wire insertion hole formed on the terminal surface of the case, and a lead wire connecting portion that is disposed on the case side and electrically connects the core wire of the lead wire inserted from the lead wire insertion hole to the contact point. , And a plurality of lead wire insertion holes are arranged in a staggered pattern.

As shown in FIGS. 1 and 3, the first to fourth four sets of lead wire insertion holes are formed in the lowest first terminal surface 8A among the first to

third terminal surfaces

8A, 8B, 8C. L1 to L4 are formed side by side in the short direction. The first to fourth lead wire insertion holes L1 to L4 are located on the first terminal surface 8A at positions closer to the second terminal surface 8B than the first to fourth lead wire insertion holes L1 to L4. Are formed side by side in the short direction.
The first lead wire insertion hole L <b> 1 includes two holes, a signal line insertion hole 10 and a distribution wiring insertion hole 11. Similarly, each of the second to fourth lead wire insertion holes L2 to L4 is composed of two holes, a signal line insertion hole 10 and a distribution wiring insertion hole 11. In this embodiment, the insertion hole 10 is a signal line insertion hole and the insertion hole 11 is a distribution line insertion hole. However, the insertion hole 10 is a distribution line insertion hole and the insertion hole 11 is a signal line insertion hole. May be.

As shown in FIG. 3, the first to fourth signal line insertion holes 10 of the first to fourth lead wire insertion holes L1 to L4 are equally spaced on the first reference line K1 extending in the short direction. The first to fourth distribution wire insertion holes 11 of the first to fourth lead wire insertion holes are parallel to the first reference line K1 in the long direction and extend in the short direction. It is formed at equal intervals on the second reference line K2.
The first to fourth distribution line insertion holes 11 on the second reference line K2 are located at positions shifted in the short direction from the first to fourth signal line insertion holes 10 on the first reference line K1. Is formed. As a result, the first to fourth distribution wire insertion holes 10 and the first to fourth distribution wire insertion holes 11 constituting the first to fourth lead wire insertion holes L1 to L4 are staggered in the short direction. It is arranged and formed.

Further, the tool insertion hole 9 is separated from the first to fourth distribution line insertion holes 10 and the first to fourth distribution line insertion holes 11 in the long direction and at a position coincident with the short direction. It is arranged in a staggered pattern and is formed at eight positions.
The second terminal surface 8B and the third terminal surface 8C are also formed in the same structure as the first terminal surface 8A described above.
That is, four sets of fifth to eighth lead wire insertion holes L5 to L8 are formed side by side in the short direction on the second terminal surface 8B, and from the fifth to eighth lead wire insertion holes L5 to L8. A plurality of tool insertion holes 9 corresponding to the fifth to eighth lead wire insertion holes L5 to L8 are formed side by side in the short direction at a position close to the third terminal surface 8C.

The fifth to eighth four sets of lead wire insertion holes L5 to L8 formed on the second terminal surface 8B are also composed of two holes, a signal line insertion hole 10 and a distribution wiring insertion hole 11, respectively. The zigzag shape is arranged in the short direction.
The tool insertion holes 9 corresponding to the fifth to eighth lead wire insertion holes L5 to L8 are elongated in the longitudinal direction with respect to the fifth to eighth distribution wiring insertions 10 and the eighth to eighth distribution wiring insertion holes 11. Are arranged in a staggered manner in the short direction at positions corresponding to the short direction and are formed at eight positions.

Further, the 9th to 12th lead wire insertion holes L9 to L12 are formed side by side in the short direction on the third terminal surface 8C, and from the 9th to 12th lead wire insertion holes L9 to L12. A plurality of tool insertion holes 9 corresponding to the ninth to twelfth lead wire insertion holes L9 to L12 are formed side by side in the short direction at a position close to the relay terminal block 7.
The ninth to twelfth four lead wire insertion holes L9 to L12 formed in the second terminal surface 8B are also composed of two holes, a signal line insertion hole 10 and a distribution wiring insertion hole 11, respectively. The zigzag shape is arranged in the short direction.

The tool insertion holes 9 corresponding to the ninth to twelfth lead wire insertion holes L9 to L12 are in the longitudinal direction with respect to the ninth to twelfth distribution line insertion holes 10 and the ninth to twelfth distribution line insertion holes 11. Are arranged in a staggered manner in the short direction at positions corresponding to the short direction and are formed at eight positions.
The second lead wire terminal block 6 formed at the other end in the longitudinal direction of the socket 1 has a 13th lead wire insertion hole L13 and a 14th lead wire insertion hole L14 formed in the terminal surface 6a, Tool insertion holes 9 are formed side by side in the short direction at positions closer to the relay terminal block 7 than the 13th and 14th lead wire insertion holes L13 and L14.

The 13th lead wire insertion hole L13 and the 14th lead wire insertion hole L14 are similar to the first lead wire insertion hole L1 of the first terminal surface 8A, for example, the signal line insertion hole 10 and the distribution wiring insertion hole. It consists of 11 two holes.
Further, the tool insertion hole 9 is also separated in the longitudinal direction from the signal line insertion hole 10 and the distribution line insertion hole 11 of the 13th lead wire insertion hole L13 and the 14th lead wire insertion hole L14, and in the short direction. It is formed at a coincident position.
Further, between the first lead wire terminal block 5 and the second lead wire terminal block 6, an electric device terminal block for electrically connecting electric devices such as a relay and a timer is formed. In this embodiment, the relay terminal block 7 is formed as an electric equipment terminal block, and this relay terminal block 7 has 14 plug-in terminal insertion holes 15 formed in the terminal surface 7a.

Next, FIG. 4 shows the internal structure of the socket 1 with the case 2 removed. The lead wire connecting portion of the present embodiment includes a conductive metal member provided with a contact and a spring member that urges the core wire of the lead wire to the conductive metal member.
On the base 3, the first to twelfth lead wire connecting portions H1 to H12 constituting the first lead wire terminal block 5, the thirteenth lead wire connecting portion H13 constituting the second lead wire terminal block 6, and The 14th lead wire connecting portion H14, 14 plug-in terminal connecting portions 16 constituting the relay terminal block 7, the 1st to 14th lead wire connecting portions H1 to H14, and 14 plug-in terminal connecting portions. A plurality of relay

conductive plates

18a, 18b, 18c that electrically connect 16 are arranged.

As shown in FIG. 5, the first lead wire connecting portion H <b> 1 includes a conductive metal fitting 21 that is fixed to the base 3 and a spring member 22 that is integrally attached to the conductive metal fitting 21.
As shown in FIG. 6, the conductive metal fitting 21 is a member formed by bending a metal flat plate into a substantially cylindrical shape, and includes a spring member surface contact portion 23, a relay plate connection portion 24, and a pair of spring member locking pieces. 25, a first extending portion 26, a first fixed contact 27 that is a first contact, a second extending portion 28, a second fixed contact 29 that is a second contact, and a spring support piece 30. I have.
That is, the relay plate connecting portion 24 extends from the lower portion of the flat spring member surface contact portion 23, and the spring support piece 30 extends from the upper portion of the spring member surface contact portion 23.

The first extending portion 26 extends from one side edge of the spring member surface contact portion 23 at a right angle, and the second extending portion 28 extends from the other side edge of the spring member surface contact portion 23. It is bent at a right angle so as to be parallel to the first extension portion 26 and extends longer than the first extension portion 26.
A pair of spring member locking pieces 25 bent in a direction approaching each other are formed at the lower part of the first extending portion 26 and the second extending portion 28 on the spring member surface contact portion 23 side.
A first fixed contact 27 is formed at the tip of the first extension 26 by being bent so as to be parallel to the spring member surface contact portion 23, and the first fixed contact at the tip of the second extension 28. The second fixed contact 29 is formed by being bent so as to be parallel to the contact 27.

As shown in FIG. 7, the spring member 22 is a member formed by bending a conductive metal plate. The spring member 22 is formed in a flat plate-shaped conductive metal fitting surface contact portion 31 and a lower portion of the conductive metal fitting surface contact portion 31. The conductive metal fitting locking recess 32 and a first elastic portion 33 and a second elastic portion 34 that extend from the top of the conductive metal surface contact portion 31 in a band shape and are bent in substantially the same direction are provided.
The first elastic portion 33 includes an overhang portion 33a protruding to the one surface 31a side of the conductive metal surface contact portion 31, a bent portion 33b bent from the overhang portion 33a at an inner angle of less than 90 °, and the bent portion. And a first movable contact 33c extending linearly from 33b.
The second elastic portion 34 includes a linear extension portion 34a that extends in a straight line from the top of the conductive metal surface contact portion 31, and a bent portion that is bent at an inner angle of less than 90 ° from the linear extension portion 34a. 34b and a second movable contact 34c extending linearly from the bent portion 34b.

In order to integrally attach the spring member 22 to the conductive fitting 21, the conductive fitting surface contact portion 31 of the spring member 22 is inserted into the cylindrical space of the conductive fitting 21, and the conductive fitting surface contact portion 31 is connected to the conductive fitting 21. In a state of surface contact with the spring member surface contact portion 23, the pair of spring member locking pieces 25 of the conductive metal member 21 are locked in the conductive metal member locking recesses of the spring member 22 while being elastically deformed. The spring member 22 that is integrally attached to the conductive metal fitting 21 has the tip of the first movable contact 33c of the first elastic portion 33 in contact with the first fixed contact 27 as the first movable contact 33d. The tip of the second movable contact 34c comes into contact with the second fixed contact 29 as the second movable contact 34d.
The other second to fourteenth lead wire connecting portions H2 to H14 also have the same structure as the first lead wire connecting portion H1.

8 is formed on the first terminal surface 8A of the case 2 with respect to the first to fourth lead wire connecting portions H1 to H4 arranged in the socket 1 constituting the first lead wire terminal block 5. FIG. The opening positions of the first to fourth lead wire insertion holes L1 to L4 and the tool insertion hole 9 are shown.
The signal wire insertion hole 10 of the first lead wire insertion hole L1 opens near the first movable contact 33d of the first lead wire connection portion H1, and the distribution wiring insertion hole 11 of the first lead wire insertion hole L1. Is opened near the second movable contact 34d of the first lead wire connection portion H1, and one of the two tool insertion holes 9 is opened at the base end side of the first movable contact 33c, and two tools The other of the insertion holes 9 is opened on the proximal end side of the second movable contact 34c.

The opening positions of the second to fourth lead wire insertion holes L2 to L4 and the tool insertion hole 9 with respect to the second to fourth lead wire connection portions H1 are also 1 to the first lead wire connection portion H1 described above. The second lead wire insertion hole L1 and the tool insertion hole 9 have the same opening positions.
Although not shown, the second terminal surface 8B and the third terminal surface 8C of the case 2 with respect to the fifth to twelfth lead wire connecting portions H5 to H12 constituting the first lead wire terminal block 5 are provided. The opening positions of the formed fifth to twelfth lead wire insertion holes L5 to L12 and the tool insertion hole 9 are also first to fourth to the first to fourth lead wire connection portions H1 to H4 shown in FIG. The fourth lead wire insertion holes L1 to L4 and the tool insertion hole 9 have the same opening positions.

In the first lead wire terminal block 5 configured as described above, in order to connect signal lines to the first to twelfth lead wire connecting portions H1 to H12, a case opened on the proximal end side of the first movable contact 33c The first movable contact 33d of the first movable contact 33c is brought into a non-contact state with respect to the first fixed contact 27 by inserting a tool from the second tool insertion hole 9 and elastically deforming the first elastic portion 33, and the signal line After the signal line is inserted from the insertion hole 10, the signal line between the first movable contact 33 d and the first fixed contact 27 of the first movable contact 33 c that has been elastically restored by releasing the elastic deformation of the first elastic portion 33. The core wire is pinched and connected.

When connecting the distribution lines to the first to twelfth lead wire connecting portions H1 to H12, the tool is inserted from the tool insertion hole 9 of the case 2 opened on the base end side of the second movable contact 34c. The second movable contact 34d is brought into a non-contact state with respect to the second fixed contact 29 by inserting and elastically deforming the second elastic portion 34, and the second elastic portion 34 is inserted after the distribution wiring is inserted from the distribution wiring insertion hole 11. By releasing the elastic deformation of the second movable contact 34c, the second movable contact 34d of the second movable contact 34c and the second fixed contact 29 are elastically restored, and the core wire of the distribution line is sandwiched and connected.
Note that the lead wire terminal block according to the present invention corresponds to the first lead wire terminal block 5, the electrical equipment terminal block according to the present invention corresponds to the relay terminal block 7, and the two reference lines according to the present invention are This corresponds to the first reference line K1 and the second reference line K2.

FIG. 9A is a simplified view of the first terminal surface 8A when the signal line 35 and the distribution line 36 are connected to the first to fourth lead wire connecting portions H1 to H4 of the first lead wire terminal block 5. It is the figure shown in.
Four signal line insertion holes 10 are formed at equal intervals on the first reference line K1, and four distribution line insertion holes 11 are formed at equal intervals on the second reference line K1. Since the signal line insertion holes 10 and the distribution line insertion holes 11 are formed in a staggered shape, the distance between the adjacent signal line insertion holes 10 and the distribution line insertion holes 11 is set to D1. Can do.

On the other hand, FIG. 9B shows a lead terminal block in which a plurality of signal line insertion holes S1 and distribution line insertion holes S2 are formed on a straight line on a reference line K3 as in the prior art. The distance D2 between the signal line insertion hole S1 and the distribution line insertion hole S2 is smaller than the distance D1 between the adjacent signal line insertion hole 10 and distribution line insertion hole 11 shown in FIG.
Here, on the end side of the signal line 35 and the distribution line 36, in many cases, a mark tube displaying symbols and characters is attached to identify the type of each line, and adjacent signals as shown in FIG. When the distance D1 is between the line insertion hole 10 and the distribution line insertion hole 11, the signal line 35 and the distribution line 36 to which the mark tube is attached are connected in a dense state. It cannot be easily confirmed.

On the other hand, in the first embodiment shown in FIG. 9A, a plurality of signal line insertion holes 10 and distribution wiring insertion holes 11 are arranged in a staggered shape, and the adjacent signal line insertion holes 10 and distribution wiring insertion holes 11 are arranged. Is sufficiently secured (distance D1), even if the mark tubes are attached to all of the signal lines 35 and the distribution lines 36 connected to the first lead wire terminal block 5, the signal lines 35 and Since the distribution lines 36 are not connected in a dense state, it is possible to easily confirm the symbol and display of the mark tube.
Further, not only when the signal line 35 and the distribution line 36 are connected to the first to fourth lead wire connecting portions H1 to H4, but the fifth to twelfth lead wire connections constituting the first lead wire terminal block 5 are connected. The same effect can be obtained when the signal line 35 and the distribution line 36 are connected to the portions H5 to H12.

Further, when the signal line 35 and the distribution line 36 are connected to the lead wire connecting portions H1 to H12 or pulled out, the signal line 35 and the distribution line 36 are inserted from the signal insertion hole 10 and the tool insertion hole 9 provided near the distribution line insertion hole 11. The first and second

movable contacts

33d, 34d are separated from the first and second

fixed contacts

27, 29 by elastically deforming the spring member 22 with a tool and temporarily releasing the bias of the spring member 22. It can be.
When connecting the signal line 35 and the distribution line 36 to the lead wire connecting portions H1 to H12, after inserting the signal line 35 and the distribution line 36 from the signal line insertion hole 10 and the distribution line insertion hole 11, the spring member 22 is attached. By returning to elasticity, the core of the signal line 35 is held by the first movable contact 33d and the first fixed contact 27, and the core of the distribution line is connected by the second movable contact 34d and the second fixed contact 29. be able to. Thus, the connection work of the signal line 35 and the distribution line 36 can be easily performed.

In addition, each lead wire connecting portion H1 to H12 has the first fixed contact 27 and the first movable contact 33d for connecting the signal wire 35 and the distribution wiring 36 by integrally attaching the spring member 22 to the conductive metal fitting 21. Since the second fixed contact 29 and the second movable contact 34d to be connected are provided, the number of parts can be reduced and the device cost can be reduced.

As described above, the lead wire terminal block and the electrical equipment connection socket including the lead wire terminal block according to the present invention display the arc tube attached to the end side of each lead wire even if a large number of lead wires are connected. It can be easily confirmed.

DESCRIPTION OF SYMBOLS 1 Socket 2 Case 3

Base

4a, 4b Rail attachment part 5 1st lead wire terminal block 6 2nd lead wire terminal block 6a Terminal surface 7 Relay terminal block 7a Terminal surface 8A 1st terminal surface 8B 2nd terminal surface 8C 2nd 3 terminal surface 9 tool insertion hole 10 signal line insertion hole 11 distribution wiring insertion hole 15 plug-in terminal insertion hole 16 plug-in

terminal connection portion

18a, 18b, 18c relay conductive plate 21 conductive bracket 22 spring member 23 spring member surface contact portion 24 relay plate connecting portion 25 spring member locking piece 26 first extending portion 27 first fixed contact 28 second extending portion 29 second fixed contact 30 spring support piece 31 conductive metal fitting surface contact portion 32 conductive metal fitting concave portion 33 First elastic portion

33a Overhang portion

33b Bending portion 33c First movable contactor 33d First movable contact 34 Second elastic portion 34a Linear extension portion 34b Bending portion 34c Second movable contact Child 34d second movable contact 35 signal line 36 minutes wirings H1-H14 1 th to 14 th lead wire connection portions K1 first reference line K2 second reference line L1-L14 1 th to 14 th lead insertion hole

Claims

Lead wire insertion holes formed on the terminal surface of the case;
A plurality of lead wire connecting portions arranged on the case side and electrically connecting the core wire of the lead wire inserted from the lead wire insertion hole to the contact;
The lead wire terminal block, wherein the plurality of lead wire insertion holes are arranged in a zigzag shape.
The plurality of lead wire insertion holes are formed on two reference lines extending in parallel with each other along the terminal surface,
A staggered shape so that the lead wire insertion hole formed on one of the two reference lines does not coincide with the lead wire insertion hole formed on the other of the two reference lines in a direction perpendicular to the reference line. The lead wire terminal block according to claim 1, wherein the lead wire terminal block is arranged in an array.
3. The plurality of lead wire connecting portions include a conductive metal fitting provided with the contact and a spring member that urges a core wire of the lead wire to the conductive metal fitting. Lead wire terminal block as described in 1.
A plurality of tool insertion holes respectively corresponding to the plurality of lead wire insertion holes are formed on the terminal surface of the case,
4. The lead wire terminal block according to claim 3, wherein the spring member is deformed with a tool inserted from the tool insertion hole to temporarily release the bias of the spring member.
The lead wire connecting portion includes a first contact and a second contact that are displaced from each other,
5. The adjacent one of the plurality of lead wire insertion holes arranged in a staggered shape is opposed to the first contact, and the other is opposed to the second contact. The lead wire terminal block according to any one of the above.
An electrical equipment terminal block having an electrical equipment connection section for electrically connecting electrical equipment such as a relay and a timer, and a lead wire terminal block according to any one of claims 1 to 5,
An electrical equipment connection socket, comprising: a relay conductive member that electrically connects the electrical equipment connection section and the lead wire connection section.