JPH10255889A - Terminal structure of electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent plastic deformation of a female terminal if a male terminal is inserted in a twisting direction. SOLUTION: This terminal structure is formed by extending one wall surface 3a of a rectangular tubular body 3, and bending the extended part toward the inside of the rectangular body 3 to form a female terminal 1 of a plate spring shape. In order to prevent plastic deformation of the female terminal 1 due to twisting of a male terminal 2 when inserting it into a connector, a deformation preventing wall 9 which restricts the displacement amount of the female terminal is formed in parallel to a side wall 3c by cutting and raising a part of the female terminal side wall surface 3a of the rectangular tubular body 3. The deformation preventing wall 9 is disposed at a position where a distance between one of the side walls that is distant from the restricting wall 9 of both side walls 3c in the rectangular tubular body, and the deformation preventing wall 9 is smaller than the width of the male terminal 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal structure of an electric connector connected to a wire harness or the like.

[0002]

2. Description of the Related Art Terminals in conventional electrical connectors include:
For example, a structure as shown in the conceptual diagrams of FIGS. 4 and 5 (see Japanese Patent Application Laid-Open No. 6-215823 as a similar technique) is known. The terminal 20 extends one wall surface of the substantially rectangular cylindrical body 3 and bends the extended portion inside the cylindrical body to form the leaf spring-shaped female terminal 1, and the upper wall surface 3 a side facing the female terminal 1. The contact surface 7 protrudes at two places, and the male terminal 2 is pressed toward the contact surface 7 by the spring pressure of the female terminal 1 so that electrical connection is made. Further, a deformation preventing structure 8 of the female terminal 1 is formed on the back side of the female terminal 1.

[0003]

However, in this terminal structure 20, when the male terminal 1 is inserted into the insertion hole 5 in a twisted state, although the deformation preventing structure 8 is provided, it is not possible to see the figure. As shown in FIG. 6, there is a problem that the female terminal 1 is plastically deformed into a twisted state.

The present invention has been made in view of the above problems, and has as its object to provide a terminal structure of an electrical connector which does not cause plastic deformation even when a male terminal is inserted in a twisted direction.

[0005]

In order to achieve the above object, a first aspect of the present invention is to extend a wall of a rectangular cylinder and bend the extended portion inside the cylinder to form a leaf spring-shaped female. In a terminal structure of an electric connector having terminals formed therein, a deformation preventing structure for preventing a female terminal from being plastically deformed by a torsion force of a male terminal inserted into the connector is provided in the rectangular cylinder. It is a feature.

In the present invention, since the electrical connector is provided with the deformation preventing structure, the female terminal is not deformed until it is plastically deformed even if the male terminal is inserted by applying a force in a twisted direction.

According to a second aspect of the present invention, the deformation preventing structure comprises a deformation preventing wall for limiting a displacement of the female terminal due to insertion of the male terminal within a range in which plastic deformation does not occur.

In the present invention, the deformation preventing structure is constituted by the deformation preventing wall, and the amount of twist of the female terminal can be restricted by contacting the male terminal surface with the deformation preventing wall.

According to a third aspect of the present invention, the deformation preventing wall has a length that can contact along both side ends of the surface of the male terminal that contacts the female terminal.

[0010] According to the present invention, the deformation preventing wall has a length that abuts along both side surfaces of the male terminal, thereby limiting the torsion acting on the female terminal from the start to the end of the insertion of the male terminal. Becomes possible.

According to a fourth aspect of the present invention, the deformation preventing wall is formed at right angles to the female terminal side wall surface by cutting and raising a part of the female terminal side wall surface of the rectangular cylinder. .

In the present invention, the formation of the deformation preventing wall is facilitated by cutting and raising the side wall surface.

According to a fifth aspect of the present invention, the distance between the deformation preventing wall and the side wall located farthest from the deformation preventing wall among the side walls parallel to the deformation preventing wall of the rectangular cylindrical body is as follows. It is characterized by being arranged at a position smaller than the width of the male terminal.

According to the present invention, even if the male terminal is inserted in any state, the pair of deformation preventing walls can be located within the width of the male terminal.

[0015]

According to the first aspect of the invention, when the male terminal is inserted into the connector, the displacement of the female terminal is limited by the deformation preventing structure, so that abnormal plastic deformation does not occur in the female terminal. This enables good electrical connection.

The effect of claim 2 is that the deformation preventing structure is constituted by a deformation preventing wall, and the action range of the male terminal can be limited by contacting the male terminal with the deformation preventing wall.

The effect of claim 3 is that the deformation preventing wall is set to a required length so that the male terminal can be contacted along both side surfaces, so that the male terminal can be inserted in any state regardless of the state. Do not apply excessive twisting force to the terminals.

The effect of claim 4 is that the formation of the deformation preventing wall by cutting and raising the side wall surface is easy and the cost is low.

The effect of claim 5 is that the contact surface of the male terminal is
Since the pair of deformation preventing walls always face each other, no matter what state the male terminal is inserted in, the action of the male terminal is restricted, and no force causing plastic deformation acts on the female terminal.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view showing a terminal structure of an electric connector.
1 is a plan view of FIG. 1, and FIG. 3 is an end view of the male terminal insertion side of FIG.

The electric connector 10 of the present invention is
By extending the upper wall 3a and bending the extended portion inside the cylindrical body, a leaf spring-shaped female terminal 1 is formed, and its tip is further bent toward the upper wall 3a and its tip is attached to the upper wall 3a.
By contacting the inner surface, the leaf spring is formed in a shape in which the reaction force is increased. The width of the female terminal 1 is smaller than the width of the inside of the rectangular cylindrical body 3 and the width of the male terminal 2. On the other hand, a pair of contact surfaces 7 are projected from the inner surface of the lower wall 3b by press molding, and when the male terminal 2 is inserted, the male terminal 2 is placed between the female terminal 1 and the pair of contact surfaces 7. The female terminal 1 is configured to be held and electrically connected by the spring pressure of the female terminal 1.

In this configuration, as shown in FIG. 2, the present invention cuts two opposing positions indicated by 11 on the upper wall 3a and raises the cut portion inside the cylindrical body 3, thereby forming the side wall. Deformation prevention walls 9 parallel to 3C are formed in a pair on the left and right. The height of the deformation preventing wall 9 is the same as that of the male terminal 2.
Is set so that the female terminal 1 can be displaced to a range that does not cause plastic deformation in the female terminal 1. The distance between the deformation preventing walls 9 is B between the side walls 3c, as shown in FIG. The relationship between La and Lb is set so that the contact surface of male terminal 2 can be contacted along both side edges within the range of La <B and Lb <B and outside the width of female terminal 1. doing.

The operation of the electric connector 10 having this configuration is such that when the male terminal 2 is inserted into the electric connector 10, no matter what state the male terminal 2 is inserted into, the facing surface of the male terminal 2 must be deformed. Since the prevention wall 9 is located, even if the male terminal 2 is inserted by screwing, the amount of deformation of the female terminal 1 is within a range where plastic deformation does not occur due to contact with the end face of the deformation prevention wall 9. Therefore, it is possible to prevent the female terminal 1 from being plastically deformed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a terminal structure of an electric connector of the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is an end view of the male terminal insertion side of FIG. 1;

FIG. 4 is a sectional view of a terminal structure of a conventional electrical connector.

FIG. 5 is a side view of a terminal structure of a conventional electrical connector.

FIG. 6 is a diagram showing a modification of the terminal structure of the conventional electrical connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female terminal 2 Male terminal 3 Rectangular cylinder 5 Insertion hole 7 Contact surface 8 Deformation prevention structure 9 Deformation prevention wall 10, 20 Electrical connector

Claims (5)

[Claims] 1. A terminal structure of an electrical connector in which one wall surface of a rectangular cylindrical body is extended and an extended portion is bent inside the cylindrical body to form a female terminal in the form of a leaf spring. A terminal structure for an electrical connector, wherein a deformation preventing structure for preventing a plastic deformation of a female terminal by a torsional force is provided in the rectangular cylinder. 2. The electrical connector according to claim 1, wherein said deformation preventing structure comprises a deformation preventing wall for limiting an amount of displacement of the female terminal due to insertion of the male terminal within a range in which plastic deformation does not occur. Terminal structure. 3. The terminal structure for an electrical connector according to claim 2, wherein the deformation preventing wall has a length that can contact along both side ends of a surface of the male terminal that contacts the female terminal. . 4. The female terminal side wall surface of the rectangular cylindrical body is formed by cutting and raising a part of the side wall surface of the female terminal. 3. The terminal structure of the electrical connector according to 3. 5. A distance between the deformation preventing wall and a side wall located farther from the deformation preventing wall, of the side walls parallel to the deformation preventing wall of the rectangular cylinder, is equal to that of the male terminal. The terminal structure for an electrical connector according to any one of claims 2 to 4, wherein the terminal structure is provided at a position smaller than the width.