JPH0660919A - Terminal board - Google Patents

Abstract

PURPOSE:To facilitate the management of parts, prevent the loss of parts, and easily connect an electric wire electrically and mechanically by fitting holding sections of parts such as a screw and a washer integrally with a terminal board main body. CONSTITUTION:A screw 62 screwed into the female screw hole 52 of a terminal metal 51 provided on a terminal board main body 12 is provided on a terminal piece 61. The slide section 66 of the terminal piece 61 is fitted slidably in the direction that a hold section 65 is faced to the female screw hole 52 of the terminal metal 51 and connected to the terminal metal 51. The screw 62 is inserted into a circular crimp terminal fitted to an electric wire while the terminal piece 61 is slid downward, the screw 62 is screwed into the female screw hole 52 of the terminal metal 51, and the electric wire is fitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire, and more particularly to a terminal block suitable for connecting a metal terminal or the like provided at the tip of the electric wire.

[0002]

2. Description of the Related Art Heretofore, as a terminal block of this type, for example, a connector such as an interface for electrically connecting devices and a terminal block such as a terminal for wiring in the device are used to electrically connect electric wires with screws. A structure having a mechanical and mechanical connection is known.

In this conventional terminal block, a screw inserted into an insertion hole formed in a washer is inserted into an annular portion of a crimp terminal attached to an electric wire, and the terminal metal fitting attached to the terminal block body is provided with the screw. A structure is adopted in which the electric wire is electrically and mechanically connected by being screwed into the female screw hole, sandwiching and fixing the crimp terminal with a washer and a terminal fitting.

[0004]

However, in the terminal block having the above structure, when connecting the electric wire, the screw is removed from the terminal fitting attached to the terminal block body, and the screw is inserted into the annular portion such as the crimp terminal. However, this screw has to be tightened and connected to the terminal fitting, which causes a problem that the workability of connecting the electric wire is complicated. Furthermore, there is a problem that parts management becomes complicated and parts such as screws may be lost.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a terminal block in which management of parts is easy, loss of parts is prevented, and electric wires can be easily connected.

[0006]

A terminal block according to the present invention comprises a terminal block body, a holding portion for rotatably holding a screw, and a sliding member attached to the terminal block body so as to be slidable in the axial direction of the screw. A terminal piece provided with a portion, and a female screw hole into which the screw is screwed, the holding portion of the terminal piece is mounted in the terminal block body so as to face the sliding direction of the terminal piece, It is provided with a terminal fitting that electrically and mechanically clamps and fixes the electric wire with the holding portion by screwing the screw while slidingly moving the piece.

[0007]

In the terminal block of the present invention, the terminal screw holding the screw is rotatably held by unscrewing the screw screwed into the female screw hole from the female screw hole of the terminal fitting attached to the terminal block body. , Slide in the direction away from the terminal fitting, insert the screw in this state into the annular part such as the crimp terminal of the electric wire, and slide the terminal piece while screwing the screw into the terminal fitting and the holding part. The electric wires can be connected by electrically and mechanically tightening and fixing the electric wires. And since the terminal piece that holds the screw is slidably attached to the terminal block body,
It is possible to prevent loss of parts and easily connect electric wires.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the terminal block of the present invention will be described below with reference to the drawings.

1 to 3, 11 is a terminal block,
The terminal block 11 is formed of a rectangular parallelepiped box-shaped terminal block body 12 having an upper surface and one side surface in the longitudinal direction opened, and a cover 13 for covering the opening of the terminal block body 12.

The terminal block body 12 is made of a synthetic resin such as plastic, and the terminal mounting portions 14 and 15 having different heights are formed in a stepwise manner in two rows along the longitudinal direction. Further, the terminal mounting portions 14 and 15 are formed by a partition wall portion 16 which is provided so as to project substantially vertically in the axial direction at a predetermined interval.
17 are sectioned. In addition, these terminal chambers 17,
The upper terminal arrangement portion 14 and the lower terminal arrangement portion 15 are partitioned and formed such that the positions are alternately displaced in the longitudinal direction to form a crisscross pattern.

A mounting screw 18 is rotatably attached to one end of each of the terminal mounting portions 14 and 15 by a washer (not shown) so as to project from the lower surface of the terminal block body 12.

The cover 13 is formed stepwise along the stepped terminal disposing portions 14 and 15 so as to cover the upper surface of the terminal block body 12 and the opening on one side surface in the longitudinal direction. Then, the cover 13 is formed in each terminal chamber of the upper terminal arrangement portion 14.
Corresponding to 17, a grid portion 22 is formed so as to face and abut against the upper partition wall portion 16 so as to form an insertion port 21 into which an electric wire (not shown) is inserted. Further, the lower surface of the cover body 13 is formed with a flange portion 23 in a wall shape that is opposed to and abuts against the upper ends of the upper and lower partition wall portions 16 so as to distinguish each terminal chamber 17. In addition, each terminal chamber 17 is provided on the upper surface of the cover 13.
Screw operation holes 24 are formed at positions corresponding to the upper side of the.

The cover 13 is formed by each terminal mounting portion 1
The lower surface is brought into contact with the partition wall portion 16 so that the terminal chambers 17 of 4 and 15 are independently partitioned, and the mounting portion 25 having the tip projecting outward and projecting downward at both ends in the longitudinal direction is connected to the terminal. Base 12
The cover body 13 is attached to the terminal block body 12 by engaging with the attachment holes 26 formed in the side surfaces at both longitudinal ends.

Further, on the lower surface of the terminal block body 12, there is formed a connector connecting portion 31 projecting downward at a position corresponding to the terminal mounting portions 14 and 15. Then, at the bottom of each terminal chamber 17, two elongated through holes 32, 33 having different lengths along the longitudinal direction are formed substantially parallel to each other. Further, at the upper part of the longer through hole 32, locking projections 34 are formed on the inner surfaces of both ends in the longitudinal direction so as to project inwardly so as to face each other. Further, the lower surface of the connector connecting portion 31 is formed with a connecting concave portion 35 located between the through holes 32 and 33 and opening toward the lower surface. A partition 36 is formed between the connection recess 35 and the shorter through hole 33 so as to project downward in the shape of a wall.

On the other hand, 41 is a connector for connecting a wiring board,
The connector 41 is formed of the same material as the terminal block body 12 into a box shape having an open upper surface, and a concave engaging portion 42 into which the connector connecting portion 31 of the terminal block body 12 is inserted is formed on the upper surface. . Then, at the bottom of the engaging portion 42, the terminal block body 12
At a position corresponding to the connection concave portion 35, a terminal pin 43 having conductivity, which penetrates downward from the lower surface of the connector 41, is erected substantially vertically. At the opposite corners of the connector 41, at the positions facing the mounting screws 18 of the terminal block body 12, the mounting screws 18
A nut (not shown) to which is screwed is embedded.

As shown in FIGS. 1, 2 and 7, the terminal pin 43 has a slender plate-like upper portion, a semi-circular upper end and a thinly tapered body portion 44. 41
A pin portion 45 is formed in a taper shape in which the lower portion protruding more is narrower than the upper body portion 44 and the lower end is thin. Then, at the lower portion of the body portion 44, a claw portion 46 that projects downward in the width direction in a tapered shape and is bite-positioned and fixed in the connector 41.
Are formed.

The inner surface of the engaging portion 42 of the connector 41 is
The connector connection part of the terminal block body 12 that protrudes inward
A protrusion (not shown) that engages with and positions 31 is formed.

Further, terminal fittings 51 are mounted in the terminal chambers 17 of the terminal block body 12, respectively. As shown in FIG. 1, FIG. 2 and FIG. 5, the terminal fitting 51 has a pair of substantially square-shaped opposing side edges, each of which has a female screw hole 52 formed at a substantially central portion thereof, and which are substantially vertically downward. The receiving portion 53 is formed into a concave shape in cross section by being bent. Then, on both edges in the width direction of the bent side surface of the receiving portion 53, there are provided claw portions 54 that respectively project upward in a tapered shape and are bite-positioned and fixed to the inner surface of the terminal chamber 17 of the terminal block body 12. Has been formed.

Further, one of the bent side surfaces of the receiving portion 53 is bent toward the other side, and the tip is further bent downward to form a mounting portion 55. In addition, this mounting part
At the center of the 55, facing the female screw hole 52,
56 are formed.

At the tip of the mounting portion 55, the mounting portion 55
A connection pin portion 57 is formed so as to project more narrowly downward.

In the terminal fitting 51, the connection pin portion 57 is inserted into the shorter through hole 33 of the terminal chamber 17 of the terminal block body 12, and the receiving portion 53 covers the bottom portion of the terminal chamber 17 so that each terminal is covered. Each is installed in the chamber 17.

On the other hand, 61 is a terminal piece. As shown in FIGS. 1 to 4, the terminal piece 61 has a small-diameter base end portion 63 formed in the lower part of the head of the screw 62 at the substantial center thereof. A holding portion 65 having a substantially square shape provided with an insertion hole 64 and a sliding portion 66 bent substantially vertically downward from one edge of the holding portion 65 are formed in an L-shaped cross section. Further, on the inner peripheral edge of the insertion hole 64 of the holding portion 65, a locking claw portion 67 that projects obliquely upward inward is formed. The tip of the locking claw portion 67 has a small-diameter base end portion of the screw 62 so that the screw 62 does not fall out.
It abuts 63 and rotatably engages the screw 62. Also,
The sliding portion 66 is formed in a bifurcated shape like a split pin along the longitudinal direction, protrudes outward at the outer edge in the width direction of the lower end, and is further tapered in the direction of the arrow. A stop 68 is formed.

The terminal piece 61 has a length a in the longitudinal direction of the longer through hole of the terminal block body 12, and a distance between the opposed locking projections 34 formed on the upper portion of the longer through hole 32. Distance b, sliding part
When the length in the width direction of 66 is c and the distance between the tips of the locking portions 68 in the width direction is d, it is formed so that a ≧ d>b> c.

In the terminal piece 61, the sliding portion 66 is inserted into the longer through hole 32 of the terminal chamber 17 of the terminal block body 12 so that the holding portion 65 faces the upper surface of the receiving portion 53 of the terminal fitting 51. Inserted and screw
62 is attached so as to be slidable in the axial direction, that is, in the vertical direction.

Further, 71 is a connecting metal fitting, and this connecting metal fitting 71
As shown in FIG. 1 and FIG. 6, has a more elastic shape than a conductive rectangular metal plate and is curved in a U-shape.
Then, one end side is formed to be tapered toward the tip side so as to be narrowed to form a tapered portion 72, and both sides in the longitudinal direction are bent outward substantially perpendicularly, and the body portion 44 of the terminal pin 43 is widened. The side plate portion 73 is bent and formed so as to be sandwiched in the direction. Further, the side plate portion 73 is bent along the edge of the taper portion 72 on the distal end side so as to be elastically deformable inwardly to form a holding piece portion 74. Also, the other end side is the connection pin portion 57 of the terminal fitting 51.
In order to sandwich and fix the pin, both sides in the longitudinal direction are bent outward substantially vertically, and further bent so as to face each other, and a pin insertion portion 75 is formed in a tubular shape.

The connecting fitting 71 is used for the terminal block body 12
One end side having the side plate portion 73 is inserted into the connection concave portion 35 formed on the lower surface of the terminal block body 12, and the pin insertion portion 75 straddles the partition portion 36 of the terminal block body 12 at the lower end of the shorter through hole 33 of the terminal block body 12. They are inserted and positioned below the terminal block body 12 below the terminal chamber 17 and attached. And the pin insertion part 75
, The connection pin portion 57 of the terminal fitting 51 is inserted and electrically and mechanically connected and fixed, and the body portion 44 of the terminal pin 43 of the connector 41 is inserted between the holding piece portions 74 of the side plate portion 73. Thus, the body 44 of the terminal pin 43 is clamped and fixed to the clamp piece 74 and is electrically and mechanically connected.

Next, the operation of the above embodiment will be described with reference to the drawings.

First, the terminal block body 12 is formed of synthetic resin. Then, in each terminal chamber 17, the connection pin portion of the terminal fitting 51 is
57 is inserted into the shorter through hole 33 of the terminal chamber 17 of the terminal block body 12, and the terminal fittings 51 are attached so that the receiving portions 53 of the terminal fittings 51 cover the bottoms of the terminal chambers 17.

Next, one end side of the connecting fitting 71 having the side plate portion 73 is inserted into the connection recess 35 formed on the lower surface of the terminal block body 12, and the connecting fitting 71 straddles the partition portion 36 of the terminal block body 12. Insert the pin insertion part 75 of the above into the lower end of the shorter through hole 33 of the terminal block body 12 while inserting the connection pin part 57 of the terminal fitting 51, and from the lower surface of the terminal block body 12 to the lower part of the terminal chamber 17. Position and attach the connecting brackets 71 respectively.

Further, the locking claw portion 67 formed in the insertion hole 64 of the holding portion 65 of the terminal piece 61 in advance is engaged with the base end portion 63 of the screw 62 to rotatably engage the screw 62 with the terminal piece 61. Stop it. Then, the terminal piece 61 is attached to the receiving portion 53 of the terminal fitting 51 by the holding portion 65.
The sliding portion 66 of the terminal piece 61 is inserted into the longer through hole 32 of the terminal chamber 17 of the terminal block body 12 so as to face the upper surface of the terminal block 61, and is attached so as to be slidable in the vertical direction. Attached to the base body 12 to form the terminal base 11.

Then, the engaging portion 68 of the sliding portion 66 of the terminal piece 61 is engaged with the engaging protrusion of the case body 12 so that the screw 62 is not screwed onto the terminal metal fitting 51 and is positioned above the terminal metal fitting 51. The terminal piece 61 is slid upwardly until it is locked by the portion 34 and the upper surface of the holding portion 65 contacts the lower surface of the cover body 13.

Next, the electric wire to which an annular crimp terminal (not shown) is attached is inserted into the terminal chamber 17 through the insertion opening 21 of the cover 13 between the screw 62 and the upper surface of the terminal fitting 51, and the terminal piece 61 is moved downward. While slidingly moving, the screw 62 is inserted into an annular portion of a crimp terminal (not shown) and screwed into the female screw hole 52 of the terminal fitting 51 to attach the electric wire.

On the other hand, a connector 41 in which terminal pins 43 are erected
Is previously connected to a wiring board (not shown).

The terminal block 11 to which the electric wires are attached is connected to the terminal pin 43 of the connector 41 provided on the connecting fitting 71 attached to the terminal block body 12, and the body portion 44 of the terminal pin 43 is attached to the connecting fitting 71. It is attached to the connector 41 while being inserted into the connection recess 35 of the terminal block body 12 while being held by the holding piece part 74, and the mounting screw 18 of the terminal block body 12 is screwed to the nut of the connector 41 to electrically and mechanically. Secure the connection.

According to the above-mentioned embodiment, the female screw hole 52 is bored in the terminal fitting 51 having conductivity, which is mounted in the terminal chamber 17 defined in the terminal block body 12, and is screwed into the female screw hole 52. A terminal portion 61 having conductivity, which is provided with a holding portion 65 for rotatably holding the screw 62, is slidable in the axial direction of the screw 62. The terminal room 17
Insert and hold in the through hole 32 formed inside, unscrew the screw 62 and the terminal fitting 51, and slide the terminal piece 61 in the direction away from the terminal fitting 51 along the axial direction of the screw 62. Then insert it into the annular part of the crimp terminal from the tip of the screw 62.
61 is slid toward the terminal fitting 51, the screw 62 is tightened, and the crimp terminal attached to the wire is electrically and mechanically clamped and fixed by the terminal fitting 51 and the holding portion 65 of the terminal piece 61.

As a result, a crimp terminal or the like can be easily connected, and since the screw 62 and the holding portion 65 which is a washer are integrally attached to the terminal block body 12, it is easy to manage the component and Loss can be prevented, and electric and mechanical connection of electric wires can be easily performed.

In the above embodiment, a plurality of terminal pieces are used.
Although the 61 and the terminal fitting 51 are provided in the terminal chamber 17 respectively in the above description, the terminal base 11 having the pair of terminal pieces 61 and the terminal fitting 51 may be used.

Also, although the crimp terminal is attached to the electric wire in the description, the core wire of the electric wire may be formed in an annular shape.

Further, although the terminal block body 12 and the connector 41 are engaged and connected in the description, the terminal block body 12 and the connector 41 may be integrated.

[0040]

According to the terminal block of the present invention, the screw screwed into the female screw hole is unscrewed from the female screw hole of the terminal fitting attached to the terminal block body, and the screw is rotatably held. Slide the terminal piece in the direction away from the terminal fitting, insert the screw into the annular part such as the crimping terminal of the wire in this state, and slide the terminal piece while screwing the screw into the terminal fitting. The electric wire can be connected by electrically and mechanically tightening and fixing the electric wire with the holding portion. Since the terminal piece holding the screw is slidably attached to the terminal block body, it is possible to prevent loss of parts and easily connect the electric wires.

[Brief description of drawings]

FIG. 1 is an A- of FIG. 2 showing an embodiment of a terminal block of the present invention.
It is a sectional view of A '.

FIG. 2 is a front view of the above.

FIG. 3 is a plan view in which a part of the same is cut away.

FIG. 4 is a perspective view of the above terminal piece.

FIG. 5 is a perspective view of the above terminal fitting.

FIG. 6 is a perspective view of the same connecting fitting.

FIG. 7 is a perspective view of terminal pins of the above connector.

[Explanation of symbols]

 11 Terminal block 12 Terminal block body 51 Terminal bracket 52 Female screw hole 61 Terminal piece 62 Screw 65 Holding part 66 Sliding part

Claims (1)

[Claims] 1. A terminal block main body, a terminal portion provided with a holding portion for rotatably holding a screw and a sliding portion attached to the terminal block main body so as to be slidable in the axial direction of the screw, and the screw. It has a female screw hole to be screwed, and is mounted in the terminal block main body so as to face the holding portion of the terminal piece in the sliding direction of the terminal piece, and to screw the screw while slidingly moving the terminal piece. A terminal block, comprising: a terminal fitting that electrically and mechanically clamps and fixes the electric wire between the holding portion and the holding portion.