JPH08115759A - Terminal block - Google Patents

Abstract

PURPOSE: To provide a terminal block in which the output of one wire can be plurally branched without the wiring work of crossover. CONSTITUTION: This terminal block has a block body 100, a pair of nipping part 110 mounted on the block body 100, a pair of contact parts 130 electrically connected to each nipping part 110. The contact member 130 is formed of clip members 131, 132 forming a socket part 131a, and a terminal member 133 forming a pin part 133a. The pin part of the other terminal block having the same structure as the pin part 133a is inserted to the socket part 131a from above to form the electric contact, and the pin part 133a is inserted to the socket part of the other terminal block having the same structure as the socket part 131a to form the electric contact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block having a wire end or a terminal clamping portion, and more particularly to a terminal block which can be connected to each other.

[0002]

2. Description of the Related Art A conventional terminal block is provided with a plurality of holding portions, each of which is composed of a wire end of an electric wire or a holding screw for holding a crimp terminal,
They are insulated from each other and arranged in a box-shaped base body.

Further, when the wiring fixed by the terminal block is further connected to an electric wire from the outside, for example, as shown in FIG.
It is also possible to use the terminal blocks 810 and 820 having a connector structure as shown in (4) to make connections without performing wiring work.

As shown in FIG. 8, the terminal block 810 has a plurality of holding portions 814 for holding the wire ends of the electric wire and the like, and the holding portion 8
Pin member 81 electrically connected to each of the 14
2, a base body 811 for fixing the sandwiching portion 814 and the pin member 812, and a guide pin 813.

The terminal block 820 is connected to the terminal block 810 in the direction of the arrow in the figure, and each of the plurality of pinching portions 814 for pinching the wire ends of the electric wire and the pinching portion 814. Pin member 8 of the terminal block 810 electrically connected to the
Socket member 8 into which 12 is inserted to form electrical contact
22 and a base body 821 for fixing the sandwiching portion 814 and the socket member 822. The base body 821 is formed with a tubular guide groove 823 into which the guide pin 813 of the terminal base 810 is inserted.

[0006]

However, in the conventional terminal block, all the electric wires to be wired to the terminal block are connected and fixed to the respective clamping portions. Therefore, when trying to branch the output from a certain electric wire into multiple
In order to form an electrical connection between one sandwiching part to which the electric wire is fixed and another sandwiching part of the same terminal block as the sandwiching part or a different terminal block, a so-called crossover sandwich It is necessary to wire between the parts or to use a metal terminal plate that electrically connects the two sandwiched parts.

However, wiring work for such a crossover wire is very time-consuming and is one of the causes of wiring mistakes.

Even when a terminal block having a conventional connector structure as shown in FIG. 8 is used to connect with an electric wire from the outside, the output of one electric wire from the outside is Can only be connected to one of the wires. Therefore, even when a terminal block having a conventional connector structure is used, it is necessary to wire a crossover or the like in order to branch the output in the same manner as described above.

An object of the present invention is to provide a terminal block capable of branching the output of one electric wire into a plurality of wires without the work of wiring the connecting wire.

[0010]

SUMMARY OF THE INVENTION The above object is to provide a terminal block having one or more clamping portions for clamping wire ends or terminals of an electric wire, which is electrically connected to the clamping portions. A contact member of a first kind and a contact member of a second kind, each of which has an opening, and is formed from a member having Receiving a second type contact member of another terminal block having the same configuration as the terminal block to be inserted,
This is achieved by a terminal block that has a socket portion that makes electrical contact with the second type contact member of the other terminal block.

[0011]

In the terminal block of the present invention, one terminal block is
The other two terminal blocks can be connected.

In the terminal block of the present invention, the holding portion where the wire end of the electric wire, the crimping terminal, and the like are held, and the first-type and second-type contact members formed of a conductive member are provided. , Electrically connected. Further, the first-type contact member has a socket portion having an opening, and when connecting to another terminal block, the second type of the other terminal block is inserted from the direction in which the opening is facing. An electrical contact is made with the second type contact member of the other terminal block by receiving the type of contact member.

Therefore, in the terminal block according to the present invention, the first type contact member of the terminal block is electrically contacted with the second type contact member of the other terminal block to sandwich the terminal block. It is possible to realize electrical connection between the attachment portion and the attachment portion of the other terminal block.

Similarly, by electrically contacting the first type contact member of the other terminal block with the second type contact member of the terminal block,
It is possible to realize electrical connection between the sandwiching portion of the terminal block and the sandwiching portion of the other terminal block.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the terminal block to which the present invention is applied will be described with reference to FIGS.

The terminal block 1 of this embodiment is arranged between an upper terminal block 1T and a lower terminal block 1B, which will be described later, as shown in FIG. 4, for example. Although only one terminal block 1 of the present embodiment is shown in FIG. 4, another terminal block having the same configuration as the terminal block 1 of the present embodiment is replaced with the terminal by the configuration described below. It is possible to overlap and connect the upper and lower sides of the base 1.

Further, as shown in FIGS. 2 and 3, the terminal block 1 of this embodiment has a plurality of other terminal blocks 1 having the same structure.
And are connected in the front-back direction. It should be noted that the up / down, front / rear, and left / right directions used in the description of the embodiments are based on the notation in FIG. 1, and the upper and right directions refer to the upper and right directions toward FIG. Is the front direction of FIG.

As shown in FIG. 1, the terminal block 1 of this embodiment has a base body 100 and a base body 100 mounted on the base body 100.
It has a pair of sandwiching portions 110, and a pair of contact portions 130 electrically connected to each sandwiching portion 110 and made of a conductive member.

Each contact member 130 is composed of clip members 131 and 132 forming a socket portion 131a and a terminal member 133 forming a pin portion 133a. In the present embodiment, the socket portion 131a is attached to the base body 100 so that the opening portion faces upward and the tip portion of the pin portion 133a projects downward from the base body 100.

On the socket portion 131a, the terminal block 1
The pin portion of the other terminal block having the same configuration as the pin portion 133a of No. 1 is inserted from above the terminal block 1 so that the pinch portion 110 of the terminal block 1 and the pinch portion of the other terminal block are formed. Electrical contacts are made. Similarly, the pin portion 133a of the terminal block 1 is inserted into a socket portion of another terminal block to form an electrical contact between the sandwiching portions of these two terminal blocks.

The clip member 131 is formed, for example, by bending a metal plate-shaped member at a substantially intermediate position at a right angle, and further, by folding back the tip end side in the substantially middle of the bent portion, the reverse direction is reversed. It is configured to form a U-shaped folded portion.

In the clip member 132, for example, a metal plate member similar to the clip member 131 is bent at a substantially right angle in the middle portion thereof, and the tip end side thereof is bent at substantially the center of the bent portion. Further, it is configured to be further folded back in the same direction as the folded direction to form an inverted U-shaped folded-back portion having the same size as the folded-back portion of the clip member 131.

A portion (hereinafter referred to as a support base) 130a of the clip member 132 other than the above-mentioned inverted U-shaped folded portion.
Is slightly longer than the length of the support base 130a of the clip member 131. The support base 130 of both clip members 131 and 132 is such that the two inverted U-shaped folded-back portions face each other and form a so-called socket.
By stacking a, the socket portion 131a is formed.

By configuring the socket portion 131a in this way, the spring elasticity provided at the folded back portions of the clip members 131 and 132 causes the socket portion 131a and the other terminal block inserted thereinto. The electrical contact with the pin portion is more reliably performed.

The terminal member 133 is, for example, a metal plate member similar to the clip members 131 and 132, which is bent at an intermediate portion thereof at a right angle to form a pin portion 133a. The pin portion 133a projects from the lower side of the base body 100, and the socket portion 1 of another terminal block.
It has a sufficient length to be inserted into and contact with 31a.

The contact member 130 is a terminal member 133.
Are further stacked below the clip members 131 and 132 forming the socket portion 131a and fixed to each other. These clip members 131, 132
And a method of fixing the terminal member 133 to each other,
For example, ear pieces of a predetermined size are provided on both sides of the support base 130a of the clip member 131 located at the top of the contact member 130, and the other two members 132 and 133 are fixed by caulking the ear pieces. There is a method of fixing to the clip member 131.

Also, these members 13 superposed on each other.
The support bases 130a of 1, 132, and 133 are provided with holes for inserting the pinching screws 111 described later.

The sandwiching portion 110 is a support base portion 1 of the three members 131, 132, 133 which constitute the contact portion 130.
A holding screw 111 for holding the wire end of the electric wire, a crimping terminal, or the like, a washer 112 for preventing the slippage, and a contacting portion disposed below the contact portion 130, which is passed through a hole provided in 30a. It has a screw 113 and a nut 113 screwed together.

The base body 100 is made of an insulating plastic material,
For example, it is composed of a member having an insulating property such as glass-filled polycarbonate, and as shown in FIGS. 1 to 3, a base having a bilaterally symmetrical structure formed around the through hole 126 and a base having a symmetrical structure. A side wall 12 provided on the rear side and separating the terminal block 1 from another terminal block connected to the rear side.
And 3.

The side wall 123 has a groove 121 for holding a name plate of a predetermined size, and a cover 9 (see FIG. 4).
And a notch 123a for forming.

The base portion of the base body 100 is provided with a nut hole 125a which is fitted to the outer edge portion of the nut 113 so as to prevent rotation of the nut 113 for attaching the sandwiching portion 110 to each of the symmetrical left and right structures. Formed pinch attachment part 1
25, and contact-portion shift-preventing portions 127 and 128 that prevent the positional shift of the contact portion 130.

The contact part shift preventing part 127 is formed on the side wall 1
23 is a member that protrudes forward from a predetermined position, and engages with a part of the inverted U-shaped bent portions of the clip members 131 and 132 to prevent displacement of both clip members mainly in the upward direction. To do.

Further, the contact portion shift preventing portion 128 is
It is a groove formed in a part of the base body 100. A piece provided in parallel with the inverted U-shaped folded-back portion of the clip member 132 is bent at a substantially right angle in the downward direction, and the clip member 132 is inserted so that the bent portion is inserted into the contact portion shift preventing portion 128. By disposing the clip member 132, displacement of the clip member 132 mainly in the left-right direction is prevented.

Further, the base body 100 has a structure for allowing insertion and connection only when the two terminal blocks have the same orientation when vertically connected to another terminal block. It has a protruding plate member 124 and an insertion prevention member 122. Here, the direction means the front-back direction of the terminal block 1.

The protruding plate member 124 is provided below the base of the base body 100 in parallel with the terminal member 133, and is inserted along the base side of the side wall 123 of another terminal block to be connected at the time of connection. It The insertion preventing member 122 is provided so as to project to the upper outside of the side wall 123, and when another terminal block facing the wrong direction is inserted, the insertion preventing member 122 of the projecting plate member 124 of the other terminal block is inserted. Prevent intrusion.

The protruding plate member 124 is made of a member having the same insulating property as the base portion of the base body 100, and the length thereof is the portion of the pin portion 133a of the terminal member 133 protruding from the lower portion of the base body 100. Is set longer than the length. According to this configuration, when a plurality of terminal blocks are connected and used as shown in FIGS. 2 and 3, even if the connected terminal block group is placed on a work table or the like, the terminal member 133. Since the pin portion 133a of the above does not contact the surface of the table, it is possible to prevent a short circuit accident between the terminal members.

According to the terminal block 1 of this embodiment, the terminal blocks 1 having the same structure are stacked in the vertical direction by an arbitrary number of steps, so that the sandwiching portion 110 of each terminal block 1 can be used without using a connecting wire.
The output of the wire end or the crimping terminal of the electric wire sandwiched between can be branched into an arbitrary number.

That is, together with the upper terminal block 1T and the lower terminal block 1B, which will be described later, as shown in FIG.
By connecting the
The output of the electric wire 900, which is sandwiched by 10 and electrically connected to the sandwiching portion 110, is transmitted through the sandwiching portions 110 of the terminal blocks 1B, 1 ′, 1T to the electric wires 901, 902, 9 respectively.
It is possible to branch to 03.

Further, the projecting plate member 124 and the insertion preventing member 122 provided on the terminal block 1 allow the terminal blocks 1 to be connected to each other only in a fixed direction. That is,
Since the two terminal blocks 1 are connected so that the holding parts 110 on the same side of the two holding parts 110 on the left and right are always electrically connected, a connection error can be prevented. it can.

Next, terminal blocks 2 and 3 suitable for arranging the terminal blocks 1 of this embodiment at the front and rear ends when a plurality of terminal blocks 1 are connected in the front and rear direction will be described with reference to FIGS. 2 and 3. .

At the front and rear ends of the terminal block group formed by connecting the terminal blocks 1 of this embodiment, as shown in FIGS.
Terminal blocks 2 and 3 each having a locking portion 8 for passing a screw for fixing the terminal block group at a predetermined position of a switchboard or the like from the vertical direction are arranged.

The terminal block 3 has the same structure as that of the terminal block 1 of the present embodiment, and additionally includes the locking portion 8 on the side wall 123. The terminal block 2 includes, in addition to the configuration of the terminal block 1, a second side wall 12 including the locking portion 8 arranged on the opposite side of the side wall 123.
3b and a second projecting plate member 124a arranged below the base of the table body 100.

These terminal blocks 1, 2, which constitute the terminal block group,
3 are provided with through holes 126, respectively. The through holes 126 are threaded at both ends so as to pass through the through holes 126 of all the terminal blocks constituting the terminal block group.
The shaft screw 4 of the book is threaded. From the outside of the terminal blocks 2 and 3 arranged at both ends, the sillawa 7 and the nut 5 are attached to both ends of the shaft screw 4, respectively, and tightened to integrally form a terminal block group composed of a plurality of terminal blocks. Turn into.

According to the terminal blocks 2 and 3 of the present embodiment, the integrated terminal block group composed of a plurality of terminal blocks is provided with the locking portions 8 provided on both sides of the terminal blocks 2 and 3. It can be used to be fixed in a predetermined position such as a switchboard. further,
When a plurality of the integrated terminal block groups are superposed in the vertical direction, the locking portions 8 are used to fix the terminal block groups to each other, and the plurality of outputs in each terminal block group can be arbitrarily set. It is possible to branch to the number of.

Next, referring to FIG. 4, an upper terminal block 1T and a lower terminal block 1B suitable for being arranged at the upper end portion or the lower end portion when the terminal blocks 1 of this embodiment are vertically connected will be described. explain.

The lower terminal block 1B and the upper terminal block 1T are shown in FIG.
As shown in FIG. 3, contact portions 130B and 130, which form electrical contact with the terminal blocks to which they are connected, respectively.
The structure other than the contact portion is the same as that of the terminal block 1.

The upper terminal block 1T is suitable for disposing a plurality of stacked terminal blocks 1 on the uppermost part. The contact portion 130T has the above-described terminal member 133.
The contact member 130T further includes members 131 'and 132' having a structure excluding the folded-back portion of each of the clip members 131 and 132 described above, that is, a structure in which the socket portion 131a is not formed.

The lower terminal block 1B is suitable for disposing the plurality of stacked terminal blocks 1 at the bottom. The contact portion 130B includes the clip members 131 and 13 described above.
2 and a member 133 ′ having a structure excluding the terminal portion of the terminal member 133 described above, that is, a structure that does not form the pin portion 133a.

The members 131 ', 132' of the upper terminal block 1T,
Also, by the member 133 ′ of the lower terminal block 1B, the respective contact portions 130T and 130B are connected to the common table body 1
No. 00 contact portion shift preventing portions 127 and 128, and support base portions 130a of the respective contact portions.
Further, it is possible to attach the sandwiching portion 110 in the same state.

According to the upper terminal block 1T and the lower terminal block 1B configured as described above, for example, the sandwiching portion 1 of the lower terminal block 1B.
The electric wires sandwiched between 10 and the sandwiching portions 110 of the terminal block 1 and the upper terminal block 1T of this embodiment are electrically contacted with the contact portions 130B and 130, and the contact portions 130 and It becomes possible to make an electrical connection through electrical contact with the contact portion 130T.

Furthermore, two terminal blocks, for example, terminal block 1
The lower terminal block 1B, or the upper terminal block 1T and the lower terminal block 1B can also be used as a connector.

Next, another embodiment of the terminal block to which the present invention is applied will be described with reference to FIGS. The terminal block 1 according to the present embodiment is similar to the terminal block 1 according to the above-described embodiment except that the
Alternatively, a fuse function is added.

The terminal block with a switch to which the present invention is applied is
For example, the terminal block 1 (see FIG. 1) of the above embodiment and the socket portions 13 of the pair of contact portions 130 of the terminal block 1 are provided.
The switch piece 200 is detachably attached to the la 1a as shown in FIG. Switch piece 200
Is both socket parts 1 of the contact part 130 of the terminal block 1.
By being inserted into or pulled out of 31a, the terminal block 1
The two sandwiching portions 110 are electrically connected or not connected.

The switch piece 200 is inserted into each of the two socket portions 131a of the terminal block 1, and the U-shaped metal plate member 20 short-circuits the socket portions 131a.
1 and a U-shaped support member 202 that supports the metal plate member 201. Two ends 20 of the metal plate member 201
Each of 1a is a terminal member 133 of the terminal block 1 described above.
It has the same structure as the projecting part. Also, the support member 202
Each of the two end portions 202a of the
It has the same structure as the protruding plate member 124.

A terminal block with a fuse to which the present invention is applied is
For example, the terminal block 1 of the above embodiment, and the terminal block 1
The fuse piece 30 as shown in FIG. 6, which is detachably attached to the socket portion 131a of the contact portion 130 of FIG.
It consists of zero. The fuse piece 300 is inserted into or pulled out from the socket portion 131a of the contact portion 130 of the terminal block 1, so that the two pinching portions 11 of the terminal block 1 are inserted.
0 is electrically connected via a fuse of any standard,
Alternatively, the connection state is set.

The fuse piece 300 has a terminal portion 3 which is inserted into each of the two socket portions 131a of the terminal block 1.
The fuse 301 includes a fuse 01a and a U-shaped support member 302 that supports the fuse 301. Each of the two terminal portions 301a of the fuse 301 has the same structure as the protruding portion of the terminal member 133 of the terminal block 1 described above. Further, each of the two ends 202a of the support member 302 has the same structure as the protruding plate member 124 of the terminal block 1 described above.

According to the terminal block with a switch of this embodiment,
The connection between the pair of sandwiching portions 110 provided on the terminal block 1 can be arbitrarily made by the detaching operation of the switch piece 200. Further, according to the fuse-equipped terminal block of the present embodiment, the pair of sandwiching portions 11 provided in the terminal block 1 are provided.
The electrical connection operation of 0 can be performed in the same manner as the terminal block with a switch described above, and the fuse 301 prevents
It is possible to set the upper limit of the energizing current value between the two sandwiching portions 110.

Next, another embodiment of the terminal block 1 to which the present invention is applied will be described with reference to FIG. The terminal block 1 of the present embodiment is the same as that shown in FIG. 1 except for the directions of the pin portion 133a and the socket portion 131a of the contact portion 130.
1 has the same configuration as that of the embodiment of FIG.
Similarly to the terminal block of the above embodiment, the output of each sandwiching part 110 can be branched by connecting in the vertical direction thereof, and can also be connected in the front-back direction to form a terminal block group. .

In this embodiment, as shown in FIG. 7, the base body 1
00 and a pair of sandwiching parts 11 attached to the base body 100.
0, and a pair of contact portions 130 electrically connected to each sandwiching portion 110. In addition, in FIG. 7, the same components as those in the embodiment of FIG.
The detailed description is omitted.

The contact member 130 is a clip member 13 constituting a socket portion 131a for receiving the pin portion 133a of another terminal block 1 inserted from below.
1 and 132, and a terminal member 133 that constitutes a pin portion 133a of the terminal block 1 and is inserted into a socket portion 131a of another terminal block 1 located above the terminal block 1. The constituent members 131, 132, 133 are the constituent members 13 of the contact member 130 of the embodiment shown in FIG.
1, 132, and 133 have the same configuration.

The base body 100 of this embodiment includes a side wall 123.
Of the contact member 130, and a hole 129 for inserting a terminal member 133 of another terminal block 1 to be inserted from below is formed below the socket portion 131a of the contact member 130. .

This hole 129 also functions as the insertion preventing member 122 of the embodiment shown in FIG. That is, hole 1
The cross-sectional shape of 29 is the pin portion 133 a of the other terminal block 1 and the protruding plate member 12 in the same direction as the front-back direction of the terminal block 1.
Only 4 and 4 have such a shape and size that they can pass through.

In the terminal block 1 of the present embodiment, the pin / socket portion 131a and the clamping screw 111 have a directional relationship shown in FIG.
This is the reverse of the terminal block 1 of the embodiment. Therefore, according to the terminal block 1 of the present embodiment, it is possible to realize an installation state different from the installation state of the terminal block 1 of the embodiment of FIG.
It becomes possible to cope with more diverse installation conditions.

[0064]

According to the present invention, it is possible to provide a terminal block capable of branching the output of one electric wire into a plurality of wires without the work of wiring the connecting wire.

[0065]

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a terminal block to which the present invention is applied.

FIG. 2 is a top view of a terminal block group including the terminal blocks of the embodiment of FIG.

FIG. 3 is a side view of the terminal block group of FIG.

FIG. 4 is a front view of an example of a configuration in which another terminal block is electrically connected to the terminal block of the embodiment of FIG.

FIG. 5 is a front view of a switch piece of the terminal block with a switch according to the present invention.

FIG. 6 is a front view of a fuse piece of the terminal block with a fuse of the present invention.

FIG. 7 is a front view of another embodiment of the terminal block to which the present invention is applied.

FIG. 8 is a cross-sectional view showing the internal configuration of a conventional terminal block.

9 is a front view of another example of the configuration in which another terminal block is electrically connected to the terminal block of the embodiment of FIG.

[Explanation of symbols]

1 ... Terminal block, 1B ... Lower terminal block, 1T ... Upper terminal block, 100
... Stand body, 110 ... Clamping part, 111 ... Clamping screw, 113
... Nut, 122 ... Insertion prevention member, 123 ... Side wall, 12
4 ... Projection plate member, 125 ... Clamping attachment part, 130, 1
30B, 130T ... Contact member, 131 ... Clip member, 131a ... Socket part, 132 ... Clip member, 133 ... Terminal member, 133a ... Pin part, 200 ...
Switch piece, 300 ... Fuse piece, 900, 901, 9
02, 903 ... Electric wire.

Claims (4)

[Claims] 1. A terminal block having one or more sandwiching portions for sandwiching a wire end or a terminal of an electric wire, which is composed of a conductive member electrically connected to the sandwiching portion. A first type contact member and a second type contact member, wherein the first type contact member has an opening, and the terminal block is inserted from a direction in which the opening is open; A terminal block having a socket portion for receiving a second type contact member of another terminal block having the same structure and forming an electrical contact with the second type contact member of the other terminal block. . 2. The contact member according to claim 1, wherein the second type contact member has a pin portion projecting in a direction opposite to a direction in which the opening portion faces, and the pin portion serves as the terminal block. The second terminal block having the same structure is inserted into the socket portion of the first-type contact member of the second terminal block to form an electrical contact with the first-type contact member of the second terminal block. And the terminal block. 3. The contact piece according to claim 2, further comprising a switch piece electrically connected to each other, the switch piece having two or more pin portions having the same structure as the pin portion. There are two or more pinching parts to which members are electrically connected, and two or more pin parts of the switch piece are electrically connected to each of the two or more pinching parts. The terminal block is configured to short-circuit the two or more sandwiching parts by being inserted into the socket part of the terminal block. 4. The energizing current control means for controlling the energizing current and the pin portion electrically connected to each other through the energizing current controlling means and having the same configuration as the pin portion according to claim 2. There is further a fuse piece having the above, and there are two or more pinching portions to which the first type and second type contact members are electrically connected, and the fuse piece has two or more pin portions thereof. By inserting the two or more sandwiching portions into the two or more socket portions electrically connected to each of the two or more sandwiching portions, the two or more sandwiching portions are electrically connected via the energization current control means. Terminal block characterized by being connected.