JPH1186945A - Male connecting terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a satisfactory connection even in a position slightly shifted from a female connecting terminal by providing a tapered substantially conical part advancing into the inside of the contact pieces of the female connecting terminal and making contact with the inner surfaces to perform an electric connection on a male connecting terminal. SOLUTION: The center line of the substantially conical part 11 of a male connecting terminal 1 is often slightly shifted from the center lines of the flexible contact pieces 13 of a male connecting terminal 2 in connection. In such a case, the semi-spherical part 11a of the male connecting terminal, 11 makes contact with the circumferential wall of the hole 14b of the female connecting terminal 2, advances into the hole 14b while sliding, and makes contact with the guide parts 13b of the flexible contact pieces 13. The substantially conical part 11 is advanced to a prescribed position on the inside of the flexible contact pieces 13 while guided by the guide parts 13b, and pressed onto the pressure contact parts 13c. Since the free end parts 13a of the flexible contact pieces 13 make contact with the regulating part 14a of a regulating member 14 at that time, the outward movement of the flexible contact piece 13 is regulated, and the substantially conical part 11 makes contact with the flexible contact pieces 13 with a sufficient contact pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a male connection terminal fixed to a rear portion of a wire or a flat cable and housed in a connector housing.

[0002]

2. Description of the Related Art Conventionally, a pair of mutually connectable male and female connection terminals are housed and used in a pair of mutually connectable connector housings. When the terminals are connected, the connection terminals are fitted to each other to make an electrical connection.

[0003]

In recent years, as the number of connection terminals accommodated in a connector housing has increased, the connection terminals have been reduced in size, and a large number of connection terminals have been accommodated in the connector housing at a high density. More. For this reason, the intervals between the connection terminals are likely to be uneven, and it is difficult to easily and surely connect all the connection terminals when connecting the connector housings.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a male connection terminal which can be connected even from a position slightly shifted from a female connection terminal on the other side.

[0005]

To achieve the above object, a male connection terminal according to the present invention is a male connection terminal connected to a mating female connection terminal, wherein the male connection terminal is a contact piece of the female connection terminal. It is characterized by having a tapered substantially conical portion that enters inside of each other and makes electrical connection by contacting their inner surfaces.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. FIG. 1 is a perspective view of an embodiment of a male connection terminal 1 and a female connection terminal 2 that can be connected to each other, and the female connection terminal 2 is partially cut away. The male connection terminal 1 has a tapered substantially conical portion 1 that is press-fitted into the female connection terminal 2 on the other side.
The tip of the substantially conical portion 11 is a hemispherical portion 11a. At the base of the substantially conical portion 11, a tongue-shaped fixing portion 12 for fixing a conductor of a flat cable (not shown) extends in a substantially perpendicular direction. Such a male connection terminal 1 is formed by punching out a single conductive metal plate into a predetermined shape and then bending the same into a predetermined shape.

On the other hand, the female connection terminal 2 includes, for example, three flexible contact pieces 13 which are in pressure contact with the outer peripheral surface of the substantially conical portion 11 of the male connection terminal 1, and surrounds these flexible contact pieces 13. A fitting portion 15 for fitting the regulating member 14, core wire crimping pieces 16a and 16b for crimping a core wire of an electric wire (not shown), and coating crimping pieces 17a and 17b for crimping the coating of the electric wire are sequentially provided from the front end. I have. The free end 13a of the flexible contact piece 13 is bent outward and diagonally, and the entire flexible contact piece 13 is narrowed inward. Accordingly, the flexible section 13 has a guide portion 13b for guiding the hemispherical portion 11a of the male connection terminal 1.
And a press-contact portion 1 press-contacting the substantially conical portion 11 of the male connection terminal 1.
3c are formed.

The restricting member 14 is formed in a cylindrical shape from a metal or a synthetic resin material.
Regulator 14 that regulates the movement of 3a outward by a predetermined amount or more.
a and a hole 14 through which the substantially conical portion 11 of the male connection terminal 1 is inserted.
b, and a recess 14d that determines the position of the regulating member 14 in the axial direction. The inner diameter of the restricting portion 14a is such that when the substantially conical portion 11 of the male connection terminal 1 enters the predetermined position, the contact portion 1
In order to provide a sufficient contact pressure with the free end portion 3c, the free end portion 13a is sized to restrict outward movement. The inner diameter of the hole 14 b is such that the peripheral wall thereof has a hemispherical surface portion 11 a of the male connection terminal 1 and a guide portion 13 b of the flexible contact piece 13.
And the size is large enough to insert the substantially conical portion 11 of the male connection terminal 1. The recess 14d is formed so as to be located between the adjacent flexible contact pieces 13.

When the male connection terminal 1 is used, a flat cable conductor is bonded to the fixing portion 12 by welding or the like. When the female connection terminal 2 is used, the core wire of the electric wire is crimped to the core wire crimping pieces 16a and 16b, and the wire coating is crimped to the coating crimping pieces 17a and 17b. A plurality of male connection terminals 1 and a plurality of female connection terminals 2 are provided in a pair of connector housings (not shown) that can be connected to each other.
Respectively.

In the process of connecting the connector housings to each other, the center line of the substantially conical portion 11 of the male connection terminal 1 and the center line of the flexible contact pieces 13 of the female connection terminal 2 are shown in the partial sectional view of FIG. In some cases, they substantially coincide with each other, as shown in FIG. 3, or in some cases, they slightly deviate within a tolerance range as shown in FIG.

In the former case, there is no problem, but in the latter case, the hemispherical portion 11a of the male connection terminal 1 first contacts the peripheral wall of the hole 14b of the female connection terminal 2 and slides on the peripheral wall. The flexible contact piece 1 enters the hole 14b, and as shown in FIG.
3 is brought into contact with the guide portion 13b. When the connector housings are finally connected to each other, the substantially conical portion 11 enters a predetermined position inside the flexible contact pieces 13 while being guided by the guide portions 13b of the flexible contact pieces 13 as shown in FIG. ,
It presses against these press contact parts 13c. At this time, the free end portion 13a of the movable contact piece 13 abuts on the restricting portion 14a of the restricting member 14, so that the movable contact piece 13 is restricted from moving outward. Contact with sufficient contact pressure.

As described above, in the embodiment, since the tapered substantially conical portions 11 that enter the insides of the flexible contact pieces 13 of the female connection terminal 2 and press against the inner surfaces thereof are provided, the substantially conical portions 1 are provided.
1 can be connected to the female connection terminal 2 even from a slightly shifted position. Further, by providing the semi-spherical portion 11a at the tip of the substantially conical portion 11, the effect can be further enhanced.

Although the fixing portion 12 of the male connection terminal 1 is shaped like a piece that can be fixed to a conductor of a flat cable, the fixing portion 12 may have a shape that can fix an electric wire.

[0014]

As described above, the male connection terminal according to the present invention is provided with the tapered substantially conical portion which enters inside the contact pieces of the female connection terminal and presses against the inner surfaces thereof. Connection can be made even from a position slightly shifted from the female connection terminal.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment.

FIG. 2 is a cross-sectional view of a main part in a state where center lines of both connection terminals coincide with each other.

FIG. 3 is a cross-sectional view of a main part in a state where center lines of both connection terminals are slightly shifted.

FIG. 4 is a cross-sectional view of a main part in a state where both connection terminals are initially in contact with each other.

FIG. 5 is a sectional view of a main part in a state where both connection terminals are finally connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Male connection terminal 2 Female connection terminal 11 Substantially conical part 11a Semi-spherical part 12 Fixed part 13 Flexible contact piece

Continued on the front page (72) Inventor Yoshikatsu Hasegawa Ryosei Denso Co., Ltd., 1-8-1, Kotake-cho, Nerima-ku, Tokyo

Claims (3)

[Claims] 1. A male connection terminal connected to a mating female connection terminal, wherein said male connection terminal is tapered to enter inside the contact pieces of said female connection terminal and to make electrical contact by contacting their inner surfaces. A male connection terminal having a substantially conical portion. 2. The male connection terminal according to claim 1, wherein a semi-spherical portion is provided at a tip of said substantially conical portion. 3. The male connection terminal according to claim 1, further comprising a portion extending in a direction substantially perpendicular to the base of the substantially conical portion and fixing a conductor of the flat cable.