JP3436063B2 - Terminal device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is arranged in a distribution board to electrically connect a conductive bar of a neutral wire to a load and to electrically connect a conductive bar of a ground wire to a load. Regarding terminal device.

[0002]

2. Description of the Related Art Generally, in a single-phase, three-wire type distribution board, the conductive bars of the voltage electrodes are connected to branch switches of 1P type respectively, and each branch switch is connected to each load via a wire conductor. In addition to connecting the voltage pole, the neutral pole conductive bars are inserted from the side of the multiple neutral wire opening / closing switches arranged side by side, and each neutral wire opening / closing switch is connected to each load via the wire conductor to neutral. The poles are connected.

In the neutral wire opening / closing switch, the conductive bar of the neutral pole is inserted through a bar insertion hole formed on the bottom surface side of the body, and a terminal screw is screwed on a terminal plate arranged on the upper surface side of the body. The electric wire conductor from the load is connected to connect the terminal screw and the neutral pole conductive bar to the conducting or non-conducting state by turning on / off the handle rotatably arranged on the upper surface side of the body. .

The conductive bar of the neutral pole is loosely inserted in the bar insertion hole, and when the handle of the neutral wire opening / closing switch is off, the movable contact driven by the handle does not come into contact with the neutral bar opening / closing switch, which facilitates the insertion work. When the handle of the neutral wire opening / closing switch is turned on, the neutral wire opening / closing switch is positioned by being pressed by the movable contactor driven by the handle.

[0005]

When connecting the conductive bar of the neutral pole and the electric wire conductor from the load to the above-mentioned neutral wire opening / closing switch, the neutral wire opening / closing switch is arranged side by side and the Since the wire conductor is connected to the terminal plate by screwing the terminal screw, the terminal screw must be tightened with a tool while inserting the wire conductor between the terminal screw and the terminal plate. There is a problem that the switch becomes an obstacle and the work of connecting the electric wire conductors is troublesome.

Further, in this neutral wire opening / closing switch, the conductive bar of the neutral pole is loosely inserted in the bar insertion hole, and only when the movable contact driven by the handle is pressed when the handle is in the ON operation state. Since the positioning is performed, there is a problem that not only the conductive bar of the neutral pole but also the neutral wire opening / closing switch itself has to be fixed in order to prevent the handle from moving even when the handle is off.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to easily connect electric wire conductors even when they are arranged side by side and to easily position them with respect to the conductive bar. It is to provide a terminal device.

[0008]

In order to solve the above-mentioned problems, a terminal device according to a first aspect of the present invention has a body having an electric wire insertion hole for inserting an electric wire conductor and a bar insertion hole for inserting a conductive bar. , A terminal plate disposed in the body and in contact with the electric wire conductor inserted through the electric wire insertion hole, a locking spring for urging the electric wire conductor in the direction of the terminal plate, and electrically connected to the terminal plate. A terminal device including a bar connecting portion for sandwiching the conductive bar inserted through the bar insertion hole in the thickness direction,
-Use multiple insertion holes for the conductive bar in the extension direction.
It is formed on the side of the body so that it can be installed side by side, and bar connection
Part is formed integrally with the terminal board and contacts the back surface of the conductive bar.
Contact piece and a substantially U-shape that sandwiches the contact piece and the conductive bar.
Inserting a conductive bar into the contact piece
Form the hanging end surface on one side of the
Expands with the end face on one side of the conductive bar insertion direction in the material
It has a configuration in which a rising piece that is formed into a shape is formed .

According to a second aspect of the present invention, in the terminal device according to the first aspect of the present invention, the lock spring is bent from the outside while the electric wire conductor is in contact with the terminal plate by the spring force of the lock spring. It is configured to have members.

According to a third aspect of the present invention, in the terminal device according to the first or second aspect of the present invention, the upper body has an electric wire insertion hole.
And has a bar insertion hole that is connected to the base end of this upper section.
It is formed into a substantially L shape with the lower part, and the wire insertion hole is in the upper part.
Formed at the base end of the part and near the position where it is connected to the lower part
There is.

[0011]

[0012]

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 1 is an exploded perspective view of a terminal device according to the present embodiment, FIG. 2 is a side view with a second case removed, FIG. 3 is an explanatory view for connecting electric wire conductors, and FIG. FIG. 4 is an explanatory view, FIG. 5 is an explanatory view of connecting the conductive bar to the contact piece and the sandwiching member, and FIG. 6 is a perspective view of the grounding wire connected to the distribution board.

As shown in FIGS. 1 and 2, this terminal device has a body 1 having a wire insertion hole 6 for inserting a wire conductor 5 (see FIG. 3) and a bar insertion hole 8 for inserting a conductive bar 7.
A terminal plate 2 which is disposed inside the body 1 and comes into contact with the electric wire conductor 5 inserted through the electric wire insertion hole 6, and a locking spring 3 which biases the electric wire conductor 5 in the direction of the terminal plate 2. Conductive bar electrically connected to terminal board 2 and inserted through bar insertion hole 8
The bar connecting portion 4 for sandwiching 7 in the thickness direction and the bar spring 4 rotatably supported in the body 1 and the electric wire conductor 5 in contact with the terminal plate 2 by the spring force of the locking spring 3. And an unlocking member (14) for bending (3).

As shown in FIG. 1, the body 1 is constructed by combining first and second cases 9 and 10 in which the respective parts are laterally fitted, and as shown in FIG. Part 1a
Also, the lower step portion 1b is formed in a substantially L shape. At the base end of the upper step 1a of the body 1 and in the vicinity of the continuous position with the lower step 1b,
The wire insertion hole 6 is formed, and the wire conductor 5 from the load is
Can be inserted into the wire insertion hole 6 from the vicinity of the upper surface of the lower step portion 1b, which facilitates the wiring work of the wire conductor 5.
A bar insertion hole 8 for inserting the conductive bar 7 is formed in the lower part 1b of the body 1, and the conductive bar 7 is inserted from the side surface of the body 1.
A plurality of (body 1) can be arranged side by side in the extending direction of the conductive bar 7.

The terminal plate 2 is formed by bending a conductive material, and is connected to the electric wire connecting portion 11 with which the electric wire conductor 5 inserted through the electric wire inserting hole 6 contacts, and the electric wire connecting portion 11. It has a contact piece 12 with which the back surface of the conductive bar 7 inserted through the bar insertion hole 8 contacts, and the wire connection part 11 is at the back side of the wire insertion hole 6 of the body 1, and the contact piece 12 is the body 1. It is housed in the body 1 so that it is near the bar insertion hole 8 of. The electric wire connecting portion 11 is formed in a substantially U-shape, and by arranging the tip end side of the locking spring 3 so as to face one opposite side, the electric wire conductor 5 inserted from the electric wire insertion hole 6 can be connected to the locking spring 3. It can be connected by spring force. The contact piece 12 has an end face 12a, which is one side in the insertion direction of the conductive bar 7, hung down and cut, and as shown in FIGS.
At the same time, one side of the insertion direction of the conductive bar 7 is formed in a divergent shape, and when the conductive bar 7 is inserted into the bar insertion hole 8, the conductive bar 7 is smoothly inserted between the contact piece 12 and the sandwiching member 13. Therefore, the work of inserting the conductive bar 7 is facilitated.

The locking spring 3 is made of an elastic material, and has an electric wire conductor inserted through the electric wire insertion hole 6 on one side.
A locking piece 3a for locking 5 is provided, and a pressing piece 3b for urging the electric wire conductor 5 inserted through the electric wire insertion hole 6 toward the terminal plate 2 is provided on the other side. The locking spring 3 is a known technique.

As described above, the bar connecting portion 4 is formed integrally with the conductive terminal plate 2 and the contact piece 12 that contacts the back surface of the conductive bar 7, and is formed in a substantially U-shape with an elastic material. Between the contact piece 12 and the holding member 13 that holds the conductive bar 7, and between the terminal plate 2 that connects the electric wire conductor 5 with the locking spring 3 and the holding member 13 that holds the conductive bar 7. The contact piece 12 connected with the contact plate 12 can be bent and formed from a single conductive material, and the holding member 13 can be formed of a material having elasticity different from that of the terminal plate 2.
The material can be removed efficiently, and the elastic force of the holding member 13 can be increased.

Further, as shown in FIGS. 1 and 5, the sandwiching member 13 has a rising piece 13a formed on the end surface which is one side in the insertion direction of the conductive bar 7, and the end surface of the contact piece 12 described above. 12a
At the same time, one side of the insertion direction of the conductive bar 7 is formed in a divergent shape, and when the conductive bar 7 is inserted into the bar insertion hole 8, the conductive bar 7 is smoothly inserted between the contact piece 12 and the sandwiching member 13. Therefore, the work of inserting the conductive bar 7 is facilitated.

The release member 14 is a shaft portion 9 formed on the body 1.
Fit a and 10a into the bearing holes 15 and 15, and attach the second case 1
By contacting the elastic piece 16 with the protrusion 10b formed on the 0,
It is rotatably supported in the body 1 in a state where the counterclockwise power in FIG. 2 is accumulated. The releasing member 14 includes a handle portion 17 which is rotated clockwise against the force of the elastic piece 16 and a locking piece 3a of the locking spring 3 which is bent when the handle portion 17 is rotated clockwise. Unlocking part 18 and wire insertion hole
The wire conductor 5 inserted from 6 is pressed by the tip of the conductor 5
And a display piece 19 for rotating 17 in a clockwise direction.

By rotating the unlocking member 14 in the clockwise direction against the force of the elastic piece 16, the releasing piece 18 presses the locking piece 3a of the locking spring 3 as shown in FIG. Lock spring 3
This makes it easier to pull out the wire conductor 5 connected between the locking spring 3 and the terminal plate 2. Also,
As shown in FIG. 3, the tip of the electric wire conductor 5 inserted through the electric wire insertion hole 6 presses the display piece 19 to rotate the handle portion 17, whereby the completion of connection of the electric wire conductor 5 can be displayed. .

A distribution board using this terminal device A will be described with reference to FIG. In this distribution board, a board 21 is attached between frames 20 arranged on both sides (only one side is shown in FIG. 6) of a bottom plate (not shown), and a fixing member 2 is attached to the board 21.
1P type branch switches 23, 23, ... are attached via 2, 22, ..., and a conductive bar (not shown) of a voltage electrode is electrically connected to these branch switches 23, 23 ,. Connection, and branch switch 2
3, 23, ... Output terminals 23a, 23a ,.
7 is attached to the board 21, and the terminal devices A, A, ... Of the present invention are attached to the conductive bar 7, and a load (not shown) is provided through each branch switch 23, 23. ) Is connected to the voltage pole of the electric circuit, and the neutral pole is connected to each load from the neutral pole bar provided in the distribution board, and for grounding from the load depending on the need of the load. The wire conductors 5 are connected by the terminal devices A, A, ... Of the present invention. According to this distribution board, the terminal device A of the present invention,
A, ... Are used to connect the wire conductor 5 for grounding from the load, but can also be used to connect the neutral pole to the load.

As described above, since the electric wire conductor 5 for grounding from the load (not shown) can be connected as it is by inserting it into the electric wire insertion hole 6 with a fingertip, like a conventional neutral wire opening / closing switch, It is not necessary to tighten the terminal screw with a tool while fitting the wire conductor 5 between the screw and the terminal plate, and the work of connecting the wire conductor 5 becomes easy. Also,
In this terminal device A, the conductive bar 7 is inserted through the bar insertion hole 8
Since the conductive bar 7 is inserted in 1 and sandwiched in the thickness direction by the bar connecting portion 4, the positioning with respect to the conductive bar 7 can be easily performed. That is, once the conductive bar 7 is fixed, the terminal device A itself is also fixed.
In FIG. 6, reference numeral 24 is a ground wire for grounding the conductive bar 7 itself.

The shape of the locking spring is not limited to the one pressing in the direction of the terminal plate as in the present embodiment, but may be a locking spring that pulls in the direction of the terminal plate.

[0025]

[0026]

The terminal device according to the first aspect of the invention has a body having an electric wire insertion hole for inserting an electric wire conductor and a bar insertion hole for inserting a conductive bar, and an electric wire insertion hole arranged in the inside of the electric body. The terminal plate with which the inserted wire conductor contacts, the locking spring that biases the wire conductor in the direction of this terminal plate, and the conductive bar that is electrically connected to the terminal plate and inserted through the bar insertion hole in the thickness direction. A terminal device with a bar connecting part that holds
The bar insertion hole allows the body to
Since it is formed on the side surface side of the body so that a plurality of them can be installed side by side , the connection work can be performed simply by inserting the electric wire conductor from the load through the electric wire insertion hole, and the electric wires can be arranged side by side. The electric wire conductor can be easily connected, and the conductive bar can be sandwiched to easily position the conductive bar. Also,
The bar connecting portion is integrally formed with the terminal plate to connect the conductive bar.
Insert the contact piece that contacts the back side and the contact piece and the conductive bar.
Since it has a substantially U-shaped holding member,
The terminal board that connects the wire conductor to the locking spring and the conductive bar
The contact piece that connects the clamp to the holding member
Can be bent from the material and can be clamped
The member should be made of a material with elasticity different from that of the terminal board.
It is also possible to efficiently remove the material of the terminal board.
In addition, the elastic force of the holding member can be increased. Furthermore, contact pieces
Form an end face that hangs on one side of the conductive bar insertion direction
At the same time, the end surface of the holding member on one side of the conductive bar insertion direction
Together with this, it forms a rising piece that is formed in a divergent shape.
Therefore, when inserting the conductive bar into the bar insertion hole,
Can be smoothly inserted between the contact piece and the sandwiching member.
Therefore, the work of inserting the conductive bar becomes easy.

According to a second aspect of the present invention, the terminal device is provided with an unlocking member for flexing the lock spring from the outside in a state where the electric wire conductor is brought into contact with the terminal plate by the spring force of the lock spring. Therefore, when the unlocking member is operated, the locking spring is slid, and in addition to the effect of the first aspect, the work of pulling out the electric wire conductor is facilitated.

In the terminal device according to claim 3, the body is an electric wire.
An upper step part with an insertion hole and a base end of this upper step part
Is formed in a substantially L shape by the lower part having a bar insertion hole.
The wire insertion hole is located at the base end of the upper part and the connection position with the lower part.
Since it is formed in the vicinity, the wire conductor from the load can be
It can be inserted into the wire insertion hole from near the upper surface of the part,
In addition to the effect of claim 1 or claim 2,
The turning work becomes easy.

[0029]

[0030]

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a side view showing the above-mentioned second case removed.

FIG. 3 is an explanatory diagram for connecting the electric wire conductors of the above.

FIG. 4 is an explanatory view of pulling out the electric wire conductor of the above.

FIG. 5 is an explanatory diagram for connecting the conductive bars of the above.

FIG. 6 is a perspective view in which the same as above is incorporated in a distribution board.

[Explanation of symbols]

1 body 2 terminal board 3 lock spring 4 bar connection 5 wire conductor 6 Wire insertion hole 7 Conductive bar 8 bar insertion hole

─────────────────────────────────────────────────── --- Continuation of the front page (56) Reference JP-A-9-134634 (JP, A) JP-A-4-215267 (JP, A) JP-A-5-275121 (JP, A) JP-A-51- 38684 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 4/48

Claims (3)

(57) [Claims] 1. A body having an electric wire insertion hole for inserting an electric wire conductor and a bar insertion hole for inserting a conductive bar, and a terminal disposed in the electric body and in contact with the electric wire conductor inserted through the electric wire insertion hole. comprising a plate, and a locking spring for biasing the wire conductor to the terminal plate direction, and a bar connecting portion for clamping in electrically connected to an insertion from the bar insertion hole is conductive bar in the thickness direction to the terminal plate, the In the terminal device described above, the bar insertion hole faces the body in the extending direction of the conductive bar.
Formed on the side of the body so that multiple units can be installed side by side.
And the bar connecting portion is integrally formed with the terminal plate to guide the
The contact piece that comes into contact with the back surface of the electric bar and the contact piece and the conductive bar.
An end surface that is configured to have a substantially U-shaped holding member that sandwiches the
And the conductive bar insertion direction in the holding member.
One side is formed with a flared shape together with the end face.
A terminal device formed by forming an upper piece . 2. The unlocking member for flexing the lock spring from the outside in a state where the electric wire conductor is brought into contact with the terminal plate by the spring force of the lock spring, is provided in the body. Terminal device. 3. The upper part of the body having an electric wire insertion hole.
And has a bar insertion hole that is connected to the base end of this upper section.
It is formed into a substantially L shape with the lower part, and the wire insertion hole is in the upper part.
The terminal device according to claim 1 or 2, wherein the terminal device is formed at a base end of the portion and in the vicinity of a position where the lower portion is connected .