JPH01235173A - Terminal bed - Google Patents

Abstract

PURPOSE:To make the insertion force of an electric wire zero and facilitate the insertion of the electric wire by providing a rotatable handle pressing a compressing plate at one end and compressing a locking spring to form a gap to be inserted with the conductor of the electric wire between the connection section of a terminal plate and the compressing plate when rotated in one direction. CONSTITUTION:A terminal plate 11 having a terminal 12 to be connected to an electric wire on one end and a connection section 13 to be connected to another electric wire on the other end, a locking spring 14 elastically connecting the conductor of the electric wire to the connection section 13 of the terminal plate 11, dnd a compressing plate 16 excited by the return force of the locking spring 14 to the connection section side are provided. A rotatably supported handle 21 pressing the compressing plate 16 on one end and compressing the locking spring 14 to form a gap to be inserted with the conductor of the electric wire between the connection section of the terminal plate 11 when rotated in one direction is provided. The insertion force of the conductor of the electric wire can be made zero, the insertion of the electric wire can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a terminal block used in equipment such as air conditioners.

[Prior Art] Conventionally, when connecting an 'IIL line in equipment such as an air conditioner, a terminal block using a locking spring has been used.

That is, the conductor of the electric wire is inserted into the terminal block and connected to the terminal board by the external force of the locking spring, but in this connection configuration, the locking spring is compressed directly by the electric wire, so it is difficult to connect large electric wires. Since the insertion force is required (in Italy) and the connection is made inside the device, there is a problem that there are many incomplete insertions.

[Problem to be Solved by the Invention 1 The present invention has been provided in view of the above points, and includes:
To provide a terminal block whose EI is to facilitate the insertion of electric wires by setting the electric wire insertion force to O.

[Means for Solving the Problems 1 [Function] The present invention provides a terminal board having a terminal connected to an electric wire at one end and a connecting part to which another electric wire is connected at the other end; A locking spring brings the conductor into elastic contact with the connection part of the terminal board, a compression plate is biased by the return force of the locking spring toward the connection part, and one end is compressed by being rotated in one direction. A rotatably pivoted handle that compresses the locking spring by pressing the plates together to form a gap between the connection part of the terminal plate and the compression plate into which the conductor of the electric wire is inserted, and the stirring action of the handle. The locking spring is compressed by rotating the handle in one direction and pressing the compression plate at one end of the handle, by including a case for storing each of the above-mentioned members with the other end exposed to the outside. With this, a gap is created between the locking spring and the connection part of the terminal plate, the conductor of the electric wire is inserted into this gap, and the handle is rotated back in the other direction to release the compression of the locking spring by the compression plate. , the conductor is brought into elastic contact by the restoring force of the locking spring, and electrical contact is established between the conductor and the connecting portion.

[Embodiment 1] Hereinafter, embodiments of the present invention will be described with reference to the drawings. #I
Figure J1 shows an exploded perspective view, and Figure 2 shows a perspective view. A body 1 made of an insulating material has a substantially U-shaped cross section, and a pair of conductive terminal plates 11 are provided in an internal storage section 2.
are stored and arranged. A pair of electric wire insertion holes 3 are formed in a stepped portion 4 at one end of the body 1, a concave portion 5 recessed by one step is formed on both sides of the approximately central portion, and two protrusions 6 are formed in the concave portion 5. . Also, body 1! A partition wall 7 is integrally provided on the end side to provide insulation between the terminal plates 11.

A mounting hole 8 for mounting to equipment is bored in the center of the body 1.

One end of the terminal plate 11, which is formed in a substantially U-shape, has two plate-shaped terminals 12, upper and lower, to which electric wires are connected. The other end of the terminal plate 11 has a U-shaped connection portion 1.
3 is provided, and the conductor of another electric wire is connected to this connecting portion 13. A locking spring 14 is arranged inside the connection ff1s13! t, and the locking spring 1 is released from the lower piece 11a of the terminal plate 11.
A stopper 111 for preventing removal of 4 is cut and raised. A semicircular bearing 15 is formed on a hanging piece lid that hangs downward from the upper piece 11c of the end P plate 11. A compression plate 16 is arranged inside each of the locking springs 14, and an upper piece 16a of the compression plate 16 is formed with a new curve on the locking spring 14 side.
is located above the locking spring 14, and the upward returning force of the locking spring 14 urges the upper piece 16a upward. In other words, the returning force of the locking spring 14 causes the compression plate 16 to It has a shape that is biased upward.

Next, the handle 21 that compresses the locking spring 14 via the compression plate 16 will be explained. A shaft 22 is provided protruding from both sides of a handle 21 made of an insulating material, and the pongee 22 is pivotally supported by bearings 15 of both terminal plates 11, so that the handle 21 is rotatably supported by the terminal plate 11. An operating portion 23 is formed at one end of the handle 21, and an insertion opening 23a into which the tip of a screwdriver or the like is inserted is formed in the operating portion 23.

A compression cam 24 is integrally provided on the other end side of the handle 21, and this compression cam 24 is connected to the lower piece 16 of both compression plates 16.
b, and by rotating the handle 21, the F piece 1
6I3 is pressed downward. Also, handle 2
An elastic return spring 25 is integrally formed from the central lower surface of the body 1 , and this return spring 25 comes into elastic contact with the inner wall surface of the storage section 2 of the body 1 to apply a return force to the handle 21 .

An elastic fixing piece 32 is integrally provided downward from both sides of the cover 31 that covers the body 1, and this fixing piece 32 is fitted into the concave part 5 of the body 1 and engaged with the protrusion 6 of the concave part 5. An engagement hole 33 is bored in the fixing piece 32. Further, the upper surface of the cover 31 is provided with an opening 34 in which the working portion 23 of the handle 21 is exposed to the surface, and a mounting hole 35 is also provided. Incidentally, the body 1 and the cover 31 constitute a case. As shown in FIG. 2, this terminal block is fixed, for example, in the body E of an air conditioner with screws 40 through mounting holes 35.

Next, a method for connecting electric wires to this terminal block will be explained.

First, as shown in FIG. 3(a), when the handle 21 is rotated counterclockwise around the shaft 22 by the operation section 23, the compression cam 24 of the handle 21 is moved between the compression plates 1G and 1.
The compression plate 16 is moved downward by pressing the lower pieces 16b, 16b of G into contact with each other. This downward movement of the compression plate 16 causes the locking spring 14 to be compressed. Due to this compression of the locking spring 14, a third
A gap S is created as shown at UA. This gap S is larger than the outer diameter of the conductor 36 of the electric wire 35, and this gap S
The conductor 36 of the electric wire 35 can be inserted with zero insertion force. 3(a) shows a state in which the compression plate 16 is pressed downward by the handle 21, and FIG. 3(b) shows a state in which the locking spring 14 is compressed by the compression plate 16.

After inserting the conductor 36, turn the handle 21 and the compression cam 2 clockwise as shown in Figure 4
4 is separated from the lower piece 16b of the compression plate 16, the compression is released, and the locking spring 14 is released by the return force as shown in FIG.
is restored, and the locking spring 14 urges the conductor 36 to bring it into elastic contact with the contact portion 13 of the terminal board 11. When the handle 21 is returned to its original position, the return force of the return spring 25 causes the handle 2 to return to its original position.
1 maintains the state shown in FIG. 4(a). When removing the conductor 36, it can be easily removed by raising the handle 21 to the state shown in FIG. 3(a). Note that when the handle 21 is raised, the tip of the compression cam 24 touches the lower piece 16b of the compression plate 16.
The handle 21 can be kept in an upright state by abutting against the lower piece 11a of the terminal plate 11, and therefore,
When shipping the product, raise the handle 21 and release the locking spring 14.
It may also be shipped in a compressed state. In this case, the wire insertion force is O, and the operator can easily lock and connect the wire by tilting down the handle 21 after inserting the wire. Furthermore, since the handle 21 does not directly press against the locking spring 14, but rather through the compression plate 16, the handle 21 (compression cam 24) and the locking spring 14 can be operated smoothly. Furthermore, it is very easy to connect or disconnect electric wires within equipment such as air conditioners.

[Effects of the Invention 1] As described above, the present invention provides a terminal board having a terminal connected to an electric wire at one end and a connecting part to which another electric wire is connected at the other end, and a terminal board that connects the conductor of the electric wire to a wire. A locking spring is brought into elastic contact with the connection part of the glue, a compression plate is biased by the return force of the locking spring toward the connection part, and one end of the locking plate is pressed into contact with the compression plate by being rotated in one direction. a rotatably pivoted handle which compresses a locking spring to form a gap between the connection part of the terminal plate and the compression plate into which the conductor of the electric wire is inserted; Since it is equipped with a case that is exposed to the outside and stores each of the above-mentioned members, the handle is rotated in one direction and the compression plate is pressed against one end of the handle to compress the locking spring. A gap is created between the locking spring and the connection part of the terminal plate, the conductor of the electric wire is inserted into this gap, and the handle is rotated back in the other direction to release the compression of the locking spring by the compression plate and release the locking spring. The return force of the lock spring brings the conductor into elastic contact, making it easy to establish electrical contact between the conductor and the connecting part.In this way, by rotating the handle, the lock spring is released through the compression plate. By compressing and forming a gap between the locking spring and the connection part, the insertion force of the electric wire conductor can be reduced to zero, and there is no way to directly compress the locking spring with the handle. Since the compression plate is used, the handle and locking spring can be operated smoothly.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 and #IJ4 are explanatory views of the same operation. 11 is a terminal board, 12 is a terminal, 13 is a connection part, 14 is a locking spring, 16 is a compression plate, 21 is a handle, 35 is an electric wire, 3
6 is a conductor. Agent Patent Attorney Ishi 1) Ai Shichi

Claims (1)

[Claims] (1) A terminal board with a terminal connected to an electric wire at one end and a connecting part to which another electric wire is connected at the other end, and a locking spring that brings the conductor of the electric wire into elastic contact with the connecting part of the terminal board. and a compression plate which is biased by the return force of the locking spring toward the connection side, and when rotated in one direction, one end presses against the compression plate, compressing the locking spring and releasing the terminal board. A rotatably supported handle that forms a gap in which the electric wire conductor is inserted between the connection part and the compression plate, and the other end for operating the handle are exposed to the outside and each of the above components is delivered. A terminal block comprising a case and a case.