JPH06325805A - Bus bar connecting device - Google Patents

Abstract

PURPOSE:To facilitate interconnecting bus bars and disconnecting them from each other by drawing up a rod, installed in each of ring-shaped contacts laid across and brought in respective slide contact with the peripheral surfaces of two bus-bar conductors in such a manner that the rod may be spring-loaded downward to be vertically movable along the inner surface of the contact, then retaining the rod with a pin and releasing the rod from the pin to be locked in a hole in one of the bus-bar conductors. CONSTITUTION:A positioning rod 38 is installed in each of ring-shaped contacts 31 laid across and brought in respective slide contact with the peripheral surfaces of the conductors 23, 24 of bus bars 1, 2 in such a manner that the rod 38 may be loaded downward to frequently appear and be vertically movable along the inner surface of the contact 31 by a spring 39. Moreover, a positioning hole 25 is formed in the conductor 23 of the bus bar 1, then a stop ring 40 for preventing the rod 38 from slipping down into the contact 31 is formed in the rod 38 at its upper part and a through hole 41 is formed in the part of the rod 38 below the upper part. When the bus bars 1, 2 are accordingly connected to and disconnected from each other, the rod 38 is drawn up against the spring 39 by pliers or the like and then a pin 42 is inserted through the hole 41 to be set in its retained condition. After the conductor 24 in this condition is inserted between the contacts 31, each of the contacts 31 is laid across the subsequently inserted conductor 23 to be brought in slide contact with the conductors 23, 24 and the pin 42 is drawn out of the rod 38 so that the rod 38 may be locked in the hole 25, or the bus bars 1, 2 are disconnected from each other through a process opposing this one. This facilitates interconnecting the bus bars 1, 2 and disconnecting them from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a busbar connecting device for connecting and facing solid insulating busbars used in switch gears and the like.

[0002]

2. Description of the Related Art A conventional busbar connecting device has a structure shown in FIG. In the figure, 1 and 2 are two solid insulating busbars which are provided in adjacent box bodies in a row box state and are arranged facing each other, 3 and 4 are conductors of both busbars 1 and 2, and 5 is one conductor 3 is a screw hole, 6 is an insertion hole formed in the other conductor 4, 7 is a guide metal member made up of disks 8 and 9 having central portions superposed, and 10 is transparently provided in the central portion of the guide metal member 7. The through holes 11 and 12 are locking pieces radially provided on the peripheral edges of the circular plates 8 and 9, and a space is formed between the locking pieces 11 and 12. . 13 is a contactor arranged in an annular tulip shape, 14 is a recess formed in the center of the inner surface of the contactor 13, and in which both locking pieces 11 and 12 are inserted, 15
Are tension springs wound around the outer surfaces of both ends of each contact 13.

Reference numeral 16 is a bolt-shaped stopper, 17 is a screw rod at one end of the stopper 16, and a spring washer 18 and a flat washer 1 are provided.
It is inserted into the through hole 10 through 9 and is screwed into the screw hole 5 to fix the guide metal piece 7 to the end face of one conductor 3, and each contact 13
The inner surface on one side is in sliding contact with the peripheral surface of the one conductor 3. Two
Reference numeral 0 denotes an insertion rod at the other end of the stopper 16, which is inserted into the insertion hole 6 of the other conductor 4 and slidably contacts the inner surface of the other contact 13 with the peripheral surface of the other conductor 4. When connecting and disconnecting both conductors 3 and 4 of both boxes, one of the boxes is moved.

[0004]

In the case of the above-mentioned conventional apparatus, since the contact 13 is fixed to the one busbar 1 by the stopper 16, the two busbars 1 and 2 are separated from each other in one box. There is a problem that the body has to be moved in the left-right direction, and in particular, when the busbar 1 of the intermediate box is removed in the row box state, it is necessary to disconnect the row box from the left end or the right edge in order. The present invention has been made in consideration of the above points, and an object of the present invention is to provide a busbar connecting device in which a busbar of an intermediate box can be easily removed even in a row box state.

[0005]

In order to solve the above-mentioned problems, the busbar connecting device of the present invention is arranged so as to face each other.
Of the solid insulation busbar of this book, an annular contactor that straddles both conductors and the inner surface is in sliding contact with the peripheral surfaces of both conductors, alignment holes formed in the peripheral surface of one conductor, and the contactor moves up and down. A positioning rod provided freely on the inner surface of the contact so that it can be retracted and retained in the positioning hole, holding means for holding the positioning rod in the upper position, and the positioning rod is attached downward by releasing the holding means. And a biasing spring.

[0006]

In the busbar connecting device of the present invention configured as described above, the annular contactor is slidably contacted on the peripheral surfaces of the two conductors of the two solid insulating busbars facing each other, and Since the positioning rod, which is vertically movable on the contactor and is retractable on the inner surface of the contactor, is locked in the positioning hole formed on the peripheral surface of the conductor by the spring urging downward. When the two buses are connected, the alignment rod is inserted into the alignment hole, the movement of the contact is prevented, and the connected state of both conductors is maintained.

Further, since the positioning rod is held at the upper position by the holding means, the contact can be moved from the connected state to the other conductor, and the busbar can be easily moved without moving another box. The bus bar of the intermediate box can be easily removed even in the row box state, and the structure is simple and inexpensive.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these figures, 21 and 22 are bus bars 1 and
The second busbar end portions 23 and 24 are conductors projecting from the busbar end portions 21 and 22, and the projecting dimension of one conductor 23 is less than half the projecting dimension of the other conductor 24. Two
Numeral 5 is a positioning hole formed at a position opposite to the peripheral surface of the tip end of one conductor 23, and numeral 26 is provided between both conductors 23 and 24.
2 is a gap for removal.

Reference numeral 27 is an annular guide metal fitting, 28 is a small locking piece radially protruding from the peripheral edge of the guide metal fitting 27, and 29 is a large locking protruding from the peripheral edge of the guide metal fitting 27 at opposite positions. Pieces 30, 30 are concave portions 32 formed in the center of the inner surface,
33 is a small contactor and a large contactor that are locked to the locking pieces 28 and 29 and are arranged in an annular tulip shape.
The axial lengths of the conductors 23 and 24 of 0 and 31 are shorter than the protruding dimension of the other conductor 24. 34 is wound around the center of the outer surface of each contact 30, 31, and is a temporary fixing spring that temporarily fixes each contact 30, 31 to each locking piece 28, 29. Reference numeral 35 denotes each contact 30, 31. It is a tension spring wound around both ends of the outer surface.

36 is an insertion hole formed in the upper part of one side of the large contactor 31, 37 is a spring hole formed in communication with the insertion hole 36, 38 is vertically movable in the insertion hole 36 and the spring hole 37, and A positioning rod 39 which is provided on the inner surface of the contactor 31 so as to be retractable and engageable with the positioning hole 25, is provided in a spring hole 37, and a spring 40 which biases the positioning rod 38 downward is provided.
Is a stop ring formed at the upper end of the alignment rod 38 for preventing the alignment rod 38 from coming out inside the contactor 31, 41 is a through hole formed in the upper portion of the alignment rod 38, and 42 is a through hole. The pin is inserted through the hole 41, and the upper end of the positioning rod 38 is pulled up against the spring 39 by a tool such as pliers as shown in FIG.
2, the positioning rod 38 is held at an upper position, and the through hole 41 and the pin 42 constitute a holding means.

When connecting the two buses 1 and 2, the annular contacts 30 and 31 are inserted into the other conductor 24 while the positioning rod 38 is held at the upper position as shown in FIG. , A row box is formed, and a gap 26 is formed between the conductors 23 and 24.
To form. Next, each of the contacts 30 and 31 is moved to the one conductor 23 side so as to straddle both conductors 23 and 24, and is brought into sliding contact with the peripheral surfaces of both conductors 23 and 24, and the pin 42 is pulled out, and an alignment hole is formed. The positioning rod 38 is locked to 25,
The movement of each contact 30, 30 is prevented.

Next, when removing either one of the connected busbars 1 and 2, the positioning rod 38 is pulled up, the pin 42 is inserted into the through hole 41, and the positioning rod 3 is inserted.
8 is held in the upper position, and each of the annular contacts 30 and 31 is moved to the other conductor 24 side, and one of the bus bars 1 and 2 is
To remove in the front-back direction.

[0013]

Since the present invention is constructed as described above, it has the following effects. In the busbar connecting device of the present invention, the annular contacts 30 and 31 are slidably brought into contact with the peripheral surfaces of the two conductors 23 and 24 of the two solid insulating busbars 1 and 2 facing each other. One conductor 2
3 into the alignment hole 25 formed on the peripheral surface of the contact 3
Since the positioning rod 38, which is vertically movable on the inner surface of the contactor 31 and is retractable on the inner surface of the contactor 31, is locked by the spring 39 that urges downwardly, when the two busbars 1 and 2 are connected, the positioning is performed. The rod 38 is inserted into the alignment hole 25, the movement of the contacts 30 and 31 is prevented, and the connection state of both conductors 23 and 24 can be maintained.

Further, the positioning rod 38 is held by the holding means.
Is held in the upper position, the contacts 30 and 31 can be moved from the connected state to the other conductor 24, and the busbars 1 and 2 can be easily moved without moving other boxes.
The bus bar of the intermediate box can be easily removed even in the row box state, and the structure is simple and inexpensive.

[Brief description of drawings]

FIG. 1 is a cutaway front view of an embodiment of the present invention.

FIG. 2 is a side view of a portion of FIG.

FIG. 3 is an exploded view of a portion of FIG.

FIG. 4 is another state diagram of a part of FIG.

FIG. 5 is a cut front view of a conventional example.

[Explanation of symbols]

 1 Busbar 2 Busbar 23 Conductor 24 Conductor 25 Positioning hole 30 Contactor 31 Contactor 38 Positioning rod 39 Spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuhiro Sakon, 47 Umezutakaunecho, Ukyo-ku, Kyoto City Nissin Electric Co., Ltd.

Claims (1)

[Claims] 1. A conductor of two solid insulating buses arranged to face each other, an annular contactor whose inner surface is in sliding contact with the peripheral surfaces of both conductors, and a periphery of one of the conductors. A positioning hole formed in the surface, a positioning rod that is vertically movable in the contactor and is retractable in the inner surface of the contactor and is locked in the positioning hole, and the positioning rod is positioned in the upper position. A busbar connecting device having a holding means for holding the positioning rod and a spring for urging the positioning rod downward by releasing the holding means.