JP4394247B2 - Connecting terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection terminal for connecting and using an electric wire at the rear part and accommodating it in a connector housing.
[0002]
[Prior art]
As shown in FIG. 4, conventional connection terminals connected to the flat-blade contact portion 1 of the counterpart connection terminal are, for example, a rectangular tube-shaped terminal connection portion 2, a U-shaped core wire crimping portion 3, and a wire crimping portion 4. Are composed of a terminal main body 5 sequentially from the front, and a flexible contact piece 6 attached to the top plate 2 a inside the terminal connection portion 2. The bottom plate 2 b of the terminal connection portion 2 is provided with a fixed contact portion 7 that cooperates with the flexible contact piece 6 and presses against the flat blade contact portion 1.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional example, the flexible contact piece 6 and the fixed contact portion 7 are only in press contact with the flat blade-shaped contact portion 1 in a narrow range, so that the flat blade-shaped contact portion 1 is in fixed contact with the flexible contact piece 6. The contact vibration between the flexible contact piece 6 and the fixed contact portion 7 with respect to the flat blade-shaped contact portion 1 may be reduced by vibrating as indicated by a broken line around the contact portion with the portion 7.
[0004]
An object of the present invention is to provide a connection terminal that solves the above-described problems and can prevent vibration of the counterpart connection terminal.
[0005]
[Means for Solving the Problems]
Connection terminal according to the present invention for achieving the above object, provided as the body and, separately to the terminal connecting portion having a wire connecting portion behind which has a terminal connection portion to the front, flat blade of the mating connecting terminal In the connection terminal composed of the flexible contact portion that contacts the contact portion, the flat blade-like contact portion is sandwiched from both the upper and lower directions in the front and rear portions in the terminal connection portion, and the sandwiching portion that also serves as the guide surface is formed respectively. The flexible contact portion is disposed between the front and rear clamping portions .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail based on the embodiment shown in FIGS.
FIG. 1 is a longitudinal sectional view of an embodiment in a state in which a flat blade contact portion 11 of a mating connection terminal is inserted, and FIG. 2 is a sectional perspective view in a state in which the flat blade contact portion 11 is removed. Such a connection terminal is suitable for large current conduction. A terminal main body 12 is connected to the rear portion of an electric wire (not shown) and accommodated in the connector housing, and the flat blade-shaped contact portion 11 is fitted inside the terminal main body 12. Is formed from a separate rectangular tubular body 13 that is press-fitted and serves as a conductive contact portion. The terminal body 12 is processed from a thick conductive metal plate, the rectangular tube body 13 is processed from a thin conductive metal plate, and the terminal main body 12 accommodates the rectangular tube body 13 in an electrically connectable manner. 14 and a U-shaped wire crimping portion 15 that extends backward from the terminal connection portion 14 and crimps the wire.
[0007]
FIG. 3 is a perspective view of the rectangular tubular body 13, and the rectangular tubular body 13 has a top plate 21, a left side plate 22, a bottom plate 23 and a right side plate 24 having a joint. The top plate 21 and the bottom plate 23 are opposed to each other so that flexible contact pieces 25 and 26 bulging inward that can be pressed against the wider surface of the flat-blade contact portion 11, that is, the upper and lower surfaces, cooperate with each other. Is formed.
[0008]
The terminal connection portion 14 of the terminal main body 12 has a top plate 31, a left side plate 32, a bottom plate 33, and a right side plate (not shown) that form a rectangular cross section. In the middle of the top plate 31 and the bottom plate 33 in the front-rear direction, the restricting portions 34 and 35 that restrict excessive deformation of the flexible contact pieces 25 and 26 are arranged so that the flexible contact pieces 25 and 26 come close to each other. Projected to the vicinity.
[0009]
First pinching portions 36 and 37 that protrude so as to approach each other on the top plate 31 and the bottom plate 33 of the terminal connection portion 14 and pinch the upper and lower surfaces on the distal end side of the flat blade contact portion 11. And second sandwiching portions 38 and 39 that are formed by cutting out a part of the top plate 31 and the bottom plate 33, project so as to approach each other, and sandwich the upper and lower surfaces of the base side of the flat blade-like contact portion 11; Are formed respectively.
[0010]
The first clamping parts 36 and 37 are formed in a protruding shape that can also restrict the rearward movement of the rectangular tubular body 13, and guide surfaces 36 a and 37 a for guiding the flat blade contact part 11 are provided on the front surfaces thereof, respectively. It has been. The second holding portions 38 and 39 are also projecting pieces that can restrict the forward movement of the rectangular tubular body 13, and guide surfaces 38 a and 39 a that guide the flat blade-shaped contact portion 11 on the front surfaces thereof. Are provided. Note that the second holding portions 38 and 39 are pressed after the rectangular tubular body 13 is fitted to the terminal connection portion 14.
[0011]
When using this connection terminal, the electric wire is crimped to the electric wire crimping portion 15 of the terminal body 12 and accommodated in the connector housing. When the mating connection terminal accommodated in the other connector housing is inserted, the flat blade-like contact portion 11 of the mating connection terminal enters between the second clamping portions 38 and 39 while being guided by the guide surfaces 38a and 39a. The flexible contact pieces 25 and 26 are further moved forward while being bent outward, and are guided by the guide surfaces 36a and 37a to enter between the first holding portions 36 and 37.
[0012]
Thus, in the embodiment, the terminal body 12 is provided with the first holding portions 36 and 37 and the second holding portions 38 and 39 for holding the upper and lower surfaces of the flat-blade contact portion 11 of the counterpart connection terminal. The flat blade-like contact portion 11 can be prevented from vibrating around the contact portions with the flexible contact pieces 25 and 26.
[0013]
In the above-described embodiment, the connection terminal is composed of the terminal main body 12 and the rectangular tubular body 13, and the flexible contact pieces 25 and 26 are provided so as to face the rectangular tubular body 13. Even when the flexible contact piece of the shape is provided so as to face the inside of the terminal connection portion 14, the same effect as in the present embodiment can be obtained.
[0014]
【The invention's effect】
As described above, the connection terminal according to the present invention is provided with the clamping portion for clamping the flat blade contact portion of the mating connection terminal in the front and rear of the flexible contact portion, so that the mating connection terminal can be used. It is possible to prevent vibration about the flexible contact portion.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment with a mating connection terminal inserted.
FIG. 2 is a cross-sectional perspective view in a state where a mating connection terminal is removed.
FIG. 3 is a perspective view of a rectangular tubular body.
FIG. 4 is a longitudinal sectional view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Flat-blade contact part 12 of a counterpart connection terminal Terminal body 13 Square tubular body 14 Terminal connection part 15 Electric wire crimping part 25, 26 Flexible contact piece 34, 35 Restriction part 36, 37 1st clamping part 36a, 37a Guide surfaces 38, 39 Second clamping portions 38a, 39a Guide surfaces

Claims (2)

A connection terminal comprising a main body having a terminal connection portion at the front and an electric wire connection portion at the rear, and a flexible contact portion provided as a separate body in the terminal connection portion and in contact with the flat-blade contact portion of the counterpart connection terminal In the above, the flat blade-shaped contact portion is sandwiched between the front and rear portions in the terminal connection portion from both the upper and lower directions, and a sandwiching portion that also serves as a guide surface is formed, and the flexible contact portion is interposed between the front and rear sandwiching portions. A connection terminal characterized by the arrangement . The connection terminal according to claim 1 , wherein the flexible contact portion is a rectangular tube-shaped fitting tube portion, and a flexible contact piece provided on the flexible contact portion is bulged inward from the upper and lower sides .

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