JP2002100430A - Connection terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide stable electrical characteristics by stably abutting a conductive contact body on a terminal body. SOLUTION: The conductive contact body 3, connected with a flat blade-like contact part of a mating connection terminal by fitting to a rectangular pipe-like terminal connection part of the terminal body as a separate body, comprises frame parts 12 and 13 fitting to relatively front part and rear part of the terminal connection part, respectively, and plural curved flexible contact piece parts 15 and 17 which are brought into press contact with the flat blade-like contact part by connecting top plates 12a and 13a to the bottom plates 12b and 13b of the frame parts 12 and 13, respectively. On side plates 12c, 12d, 13c and 13d of the frame parts 12 and 13, projecting pieces 18-21 projecting sideward and brought into press contact with the side plates of the terminal connection part are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal provided with a separate conductive contact for connecting to a flat blade contact portion of a mating connection terminal.

[0002]

2. Description of the Related Art The present applicant has already filed Japanese Patent Application No. 2000-1165.
No. 69 filed an application for a connection terminal which comes into contact with a mating connection terminal with good spring pressure and can be easily inserted and removed. The connection terminal is composed of a terminal body connected to an electric wire at a rear portion and housed in a connector housing, and a conductive contact body separately fitted to a rectangular tubular terminal connection portion of the terminal body. . The conductive contact body is provided with a pair of flexible contact pieces that are curved and can be pressed against both surfaces of the flat blade-shaped contact portion of the mating connection terminal so as to face up and down.

[0003]

However, the above-mentioned connection terminal has an advantage that it can make good contact with the mating connection terminal and that it can be easily inserted and removed, but the conductive contact body comes into stable contact with the terminal body. May not.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a connection terminal capable of securing stable electrical characteristics by stably bringing a conductive contact body into contact with a terminal body.

[0005]

A connection terminal according to the present invention for achieving the above object has a terminal body having a rectangular tubular terminal connection portion at the front and a wire connection portion at the rear.
A conductive contact body provided as a separate body inside the terminal connection part and in contact with the flat blade-shaped contact part of the mating connection terminal, wherein the conductive contact body is formed by punching and bending a single metal plate. A first frame portion fitted to a front portion in the terminal connection portion, a second frame portion fitted to a rear portion in the terminal connection portion, and the first frame portion and the second frame. A first flexible contact piece that connects upper sides of the sections and bends downward and presses against an upper surface of the flat blade-shaped contact section, and lower sides of the first frame section and the second frame section. And a second flexible contact portion that curves upward and presses against the lower surface of the flat blade-shaped contact portion, and extends laterally on each side plate of the first and second frame portions. It is characterized in that a protruding spring piece is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiment. FIG. 1 is a longitudinal sectional view of an embodiment showing a state before connection with a flat blade contact portion 1 of a mating connection terminal, and FIG. The connection terminal according to the embodiment includes a terminal body 2 connected to an electric wire at a rear portion and housed in a housing, and a conductive contact portion which is separately fitted inside the terminal body 2 and contacts the flat blade-shaped contact portion 1. And a conductive contact body 3 to be formed.

The terminal body 2 is formed from a single thick conductive metal plate, and the conductive contact 3 is formed from a single thin conductive metal plate. The terminal body 2 has a rectangular tube-shaped terminal connection portion 4 for accommodating the conductive contact body 3 so as to be electrically connectable, and a U-shaped wire crimp extending from the terminal connection portion 4 to crimp the wire. A portion 5 is formed.

FIG. 3 is a perspective view of the conductive contact 3, and FIG. 4 is a plan view.
The terminal connection portion 4 is provided on a later-described top plate or bottom plate side. The seam 11 is shown in FIG. 2 in a state provided on the bottom plate side, and FIGS. 3 and 4 are shown in a state provided on the top plate side.

The conductor contact body 3 has a first frame portion 12 fitted to a relatively front portion of the terminal connection portion 4 and a second frame portion fitted to a relatively rear portion of the terminal connection portion 4. Part 13 and a plurality of first flexible contact pieces 15 having a plurality of slits 14 extending in the axial direction and connecting the top plates 12a, 13a of the frame bodies 12, 13 to each other, and facing in the axial direction. It has a plurality of second flexible contact pieces 17 that have a plurality of slits 16 and connect the bottom plates 12b and 13b of the frames 12 and 13 to each other. The first flexible contact portion 15 is curved downward so as to be able to press against the upper surface of the flat blade-shaped contact portion 1, and the second flexible contact portion 17 is pressed against the lower surface of the flat blade-shaped contact portion 1. Curved upward to get.

Here, one of the slits 14 is a joint 1
1 and the top plate 12 of the frame bodies 12 and 13
A gap having the same width as that of the slit 14 is provided in each of a and 13a. Also, the side plates 12c and 12d of the first frame 12 are provided with protrusions 18 and 19 having resiliency projecting laterally, respectively, and the side plates 13c and 13d of the second frame 13 are provided.
At d, projections 20 and 21 projecting to the side are provided, respectively. The outer surfaces of the protruding pieces 18 to 21 on the free end side are respectively located slightly outside the outer surfaces of the side plates 12c, 12d, 13c, and 13d. Notches 22 to 25 are formed in the upper and lower centers of the frame parts 12 and 13 and the projection pieces 18 to 21 so as to cut out the base sides of the frame parts 12 and 13 and the projection pieces 18 to 21. .

As shown in FIGS. 1 and 2, the terminal connection portion 4 of the terminal body 2 is composed of
In the middle of the top plate 31 and the bottom plate 33 in the front-rear direction,
Restricting portions 34 and 35 for restricting excessive deformation of the flexible contact portions 15 and 17 of the conductive contact body 3 protrude to the vicinity of the flexible contact portions 15 and 17 so as to approach each other. .

At a rear portion of the terminal connecting portion 4, a first holding portion 36 which projects from the top plate 31 and the bottom plate 33 so as to approach each other and holds the upper and lower surfaces of the tip side of the flat blade contact portion 1, 37
Are formed respectively. In the front part of the terminal connection part 4,
The top plate 31 and the bottom plate 33 are cut out from a part thereof and protruded so as to approach each other. I have.

The first holding portions 36 and 37 are formed in the shape of protrusions for restricting the rearward movement of the conductive contact member 3 by a predetermined amount or more, and have guide surfaces 36a for guiding the flat blade-shaped contact portion 1 on their front surfaces.
37a are provided respectively. A second holding portion 38,
Reference numeral 39 denotes a protruding piece for restricting the conductive contact body 3 from moving forward by a predetermined amount or more. Guide faces 38a and 39a for guiding the flat blade-shaped contact portion 1 are provided on the front surfaces thereof.

The second holding portions 38 and 39 are pressed after the conductive contact 3 is pushed into the terminal connection portion 4. When the conductive contact body 3 is pushed into the terminal connection part 4, the projecting pieces 18 to 21 of the conductive contact body 3 are pressed against the side plates 32 of the terminal connection part 4, respectively.

When the flat blade-shaped contact portion 1 of the mating connection terminal is inserted into the terminal connection portion 4 of the terminal main body 2, the flat blade-shaped contact portion 1 is guided by the guide surfaces 38a, 39a to the second holding portion. 38 and 39, the flexible contact pieces 15 and 17 of the conductive contact body 3 are pushed in between the flexible contact pieces 15 and 17 while being bent outward, and guided by the guide surfaces 36a and 37a to form the first holding portion. 3
Enter between 6, 37. At this time, the top plates 12a and 13a of the frame portions 12 and 13 of the conductive contact body 3 spread right and left, respectively, with the seam 11 as a boundary, and the protrusions 1 of the conductive contact body 3
8 to 20 are strongly pressed against the side plates 32 of the terminal connection portions 4 respectively.

As described above, in the embodiment, the conductive contact 3
Since the seam 11 is located on the side of the top plate 31 of the terminal connection part 4, for example, when the flat blade-shaped contact part 1 of the mating connection terminal is received between the flexible contact pieces 15, 17, the frame part 12, 1
3 can be pressed outwardly to the side plates 32 of the terminal connection portions 4 by bending the side plates 12c, 12d, 13c, and 13d outward. The electrical connection can be improved, and the heat radiation effect can be improved.

[0017]

As described above, in the connection terminal according to the present invention, by providing the resilient projections on both sides of the terminal connection body housed in the terminal body, the conductivity between the terminal body and the terminal connection body is improved. , And stable electric characteristics can be obtained, and a margin can be provided for the supplied current value.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment shown together with a mating connection terminal.

FIG. 2 is a perspective sectional view excluding a mating connection terminal.

FIG. 3 is a perspective view of a conductive contact body.

FIG. 4 is a plan view of a conductive contact body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat blade-shaped contact part of the other party connection terminal 2 Terminal body 3 Conductive contact body 4 Terminal connection part 5 Wire crimping part 11 Seam 12, 13, Frame part 12a, 13a, 31 Top plate 12b, 13b, 33 Bottom plate 12c, 12d , 13c, 13d, 32 Side plate 14, 16 Slit 15, 17 Flexible contact piece 18-21 Projection piece

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinji Yamaguchi 1-8-1, Kotake-cho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd. (72) Inventor Takayuki Higuchi 1--8, Kotake-cho, Nerima-ku, Tokyo No. 1 Ryosei Denso Co., Ltd. (72) Inventor Michiyasu Watanabe 1-8-1, Kotakecho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd. (72) Inventor Nobuhiro Kimura 10213-31 Tana, Sagamihara-shi, Kanagawa Prefecture

Claims (3)

[Claims] 1. A terminal body having a square tubular terminal connection portion at the front and a wire connection portion at the rear, a flat blade-shaped contact portion of a mating connection terminal provided separately inside the terminal connection portion. A connection terminal comprising a conductive contact body that contacts
The conductive contact body is formed by punching and bending one metal plate, and a first frame portion fitted to a front portion in the terminal connection portion.
A second frame portion fitted to a rear portion in the terminal connection portion; an upper surface of the flat blade-shaped contact portion which connects upper sides of the first frame portion and the second frame portion and bends downward; A first flexible contact piece that presses against the first frame and a lower side that connects the lower sides of the first frame and the second frame and that curves upward and presses against the lower surface of the flat blade-shaped contact; 2. A connection terminal, comprising: two flexible contact pieces; and a spring protruding piece extending laterally on each side plate of the first and second frame portions. 2. The connection terminal according to claim 1, wherein a notch is provided in a base portion of the projecting piece so as to extend in an axial direction. 3. The connection terminal according to claim 1, wherein a plurality of slits extending in an axial direction are formed in the first and second flexible contact pieces.