JP3062140U - Structure of electrical connection element - Google Patents

Abstract

(57) [Summary] The present invention relates to a structure of an electric connection element, and more specifically, to obtain a structure of an electric connection element including a terminal fitting used for a terminal block. An electric connection element is divided into at least two pieces, and mechanically and electrically connected with the end faces of the pieces facing each other and in contact with each other. In this electrical connection element, the shape of each piece is simplified, and it is only necessary to connect and assemble as desired, so that not only the manufacturing but also the working cost can be reduced.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the structure of an electric connection element, and more particularly to the structure of an electric connection element including a terminal fitting used for a terminal block.

[0002]

[Problems to be solved by conventional techniques and devices]

 2. Description of the Related Art Conventionally, various types of terminal blocks have been proposed as electrical components for orderly connecting a number of complicated electrical wirings, and are provided for the convenience of consumers.

By the way, in this type of terminal block, a terminal fitting as an electrical connection element is disposed and fixed to the terminal base body, and an electric wiring is attached to the terminal fitting by appropriate means such as screwing or soldering. Although a desired electrical connection is made, the structure of the terminal block itself tends to become more and more complicated in order to cope with electric devices and various electric circuits. Since the terminal fittings provided on such a terminal block also have various shapes, not only is the work of assembling the terminal block into the terminal block main body complicated, but also the manufacturing and operation costs are increased. Issues were pointed out.

[0004]

[Means for Solving the Problems]

 In view of this, the present invention employs a configuration in which the electrical connection element is formed by dividing it into at least two pieces, and mechanically and electrically connected in an abutting state with the end faces of these pieces facing each other. By doing so, the aim is to reduce manufacturing and working costs. In this case, specifically, the two piece members are formed by a tab piece and a key-shaped terminal piece in which a plate made of a copper alloy is formed in a U-shape, and are provided on opposite end faces of the tab piece and the terminal piece. A configuration is adopted in which the tab pieces and the terminal pieces are mechanically and electrically connected by opening the small holes and expanding the small holes with their end faces facing each other and in contact with each other. can do.

[0005]

[Embodiment of the invention]

 The electrical connection element according to the present invention is mechanically and electrically connected in a state in which the end faces of the pieces formed by dividing into plural pieces are opposed to each other and are in contact with each other, so that the shape of each piece is simplified. In addition to this, not only the manufacturing but also the working cost can be reduced because the connection can be made appropriately as required and assembled.

[0006]

【Example】

 Next, a preferred embodiment of the electrical connection element according to the present invention will be described in detail with reference to the accompanying drawings, taking as an example a terminal assembly. It should be noted that the present invention is not limited to this embodiment, but can be appropriately applied to the general configuration of the electrical connection element, and various improvements and modifications may be made without departing from the spirit of the present invention. It goes without saying that it can be done.

In FIG. 1, a terminal assembly 10 as an electrical connection element according to the present invention is formed by separately forming a tab piece 12 and a terminal piece 14 and separately forming these tab pieces 12 and a terminal. It is configured by mechanically and electrically connecting the end faces of the pieces 14 while facing each other.

[0010] That is, as shown in FIG. 2, the tab piece 12 is formed by bending a thin plate made of phosphor bronze having a thickness of about 0.5 mm into a U-shape, for example. A small hole 16 having a diameter of about 3 mm is formed in the bottom portion 12a of the above. In this case, it is preferable that the opposite end portions of the upright pieces 12b, 12b of the tab piece 12 are tapered so as to be tapered.

On the other hand, as shown in FIG. 3, the terminal piece 14 is formed by bending a thin plate made of, for example, brass having a thickness of about 0.8 mm into a key shape and forming an upper side portion thereof. A hole 18 having a slightly larger diameter (about 5 mm in diameter) than the small hole 16 of the tab piece 12 is opened in 14a.

Next, the bottom 12 a of the tab piece 12 formed in this way and the upper side 14 a of the terminal piece 14 are brought into contact with each other and overlapped, and the small holes 16 and the holes 18 are aligned with each other. The small hole 16 of the tab piece 12 is expanded downward by a rolling process, and this expanded portion is extended to the inner peripheral surface of the hole 18 of the terminal piece 14 so that the tab piece 12 and the terminal piece 14 Are connected mechanically and electrically. In this case, the hole 20 formed in the assembled terminal 10 by burring is used as a set screw insertion hole.

The assembled terminal 10 configured as described above is inserted into a predetermined portion of the terminal block main body, and is fixed to the terminal block main body via a set screw inserted through the hole 20, and then the complex terminal 10 is complicated. It is used for connecting electrical wiring. Further, in this assembled terminal, the tab piece and the terminal piece which are separately formed may be mechanically and electrically connected as required by burring or the like, so that the manufacturing cost can be reduced.

[0012]

[Effect of the invention]

 As described above, the electrical connection element according to the present invention is divided into a plurality of parts even if the structure of an electric device or a terminal block as an electrical connection means for supporting various electric circuits becomes complicated. It is configured by mechanically and electrically connecting the end faces of the formed one-piece members so that the end faces thereof are opposed to each other, so that the shape of each one-piece member can be simplified and assembled as required. Not only manufacturing but also working costs can be reduced, and the practical effect is extremely large.

[Brief description of the drawings]

FIG. 1 is an assembled terminal as a preferred embodiment of an electric connection element according to the present invention, wherein a is a front view, and b is an explanatory cross-sectional view taken along line XX of a.

FIG. 2 is a view showing a tab piece in the assembled terminal shown in FIG.
Is a front view and b is a longitudinal sectional view.

FIGS. 3A and 3B are terminal pieces of the assembled terminal shown in FIG. 1, wherein a is a front view and b is a longitudinal sectional view.

[Explanation of symbols]

 10 set terminals, 12 tab pieces, 14 terminal pieces, 16 small holes, 18 holes, 20 holes (set screw insertion holes),

Claims (2)

[Utility model registration claims] 1. An electric connection element comprising at least two piece members, characterized in that these piece members are mechanically and electrically connected in a state where their end faces face each other and are in contact with each other. The structure of the electrical connection element. 2. The two piece members are a tab piece and a key-shaped terminal piece formed of a U-shaped plate made of a copper alloy, and small holes are respectively formed in opposing end faces of the tab piece and the terminal piece. 2. The structure of an electrical connection element according to claim 1, wherein the small holes are mechanically and electrically connected by expanding the small holes in a state where the small holes are opened and the end faces thereof are opposed to each other and brought into contact. .