JP2507136Y2 - Electrical connector structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector structure having a double lock.

[0002]

2. Description of the Related Art A conventional electrical connector structure of this type is disclosed in Japanese Patent Application Laid-Open No. 1-213973.

In this disclosed technique, the protrusion of the elastic arm protruding into the passage of the housing is fitted into the recess of the terminal (electrical contact terminal) housed in the passage to prevent the elastic arm from being displaced outward. Therefore, a fixing member is provided.

[0004]

However, in the conventional example, since the terminal is locked at one place and not the double lock, the terminal is locked when the fixing member is disengaged. There is a problem in that the terminal becomes unstable and the terminal cannot be reliably locked to the housing.

The present invention solves the above-mentioned problems and enables double locking of the electrical contact terminals to the connector body, and moreover secures these locking. An object of the present invention is to provide an electric connector structure capable of improving the pull-out strength of the electric contact terminal.

[0006]

In order to achieve the above object, the present invention provides a connector body having a terminal insertion hole portion and a bent piece insertion groove portion continuous with the terminal insertion hole portion. A groove portion that is perpendicular to the terminal insertion hole portion is formed on the side surface of the terminal insertion hole portion, and the terminal insertion hole portion is opened on the bottom surface of the groove portion, and a bent piece is formed on the side surface of the groove portion. The insertion groove is opened, and the lance is provided in the terminal insertion hole.
Insert the contact part of the electrical contact terminal into the terminal insertion hole,
The bent piece projecting from the contact portion is inserted into the bent piece insertion groove portion, the lance portion is engaged with the lance of the electric contact terminal, and the bent piece is projected into the groove portion. ,
The bent piece is bent, and a side edge portion of the bent piece is locked to a side surface portion of the groove-shaped portion.

[0007]

With this structure, the first locking for locking the lance of the electric contact terminal on the lance of the socket body and the second locking for locking the side edge of the bent piece on the side surface of the groove. Double locking with locking can be performed, the pull-out strength of the electrical contact terminal can be improved, and the pull-out prevention can be ensured. Moreover, the bent piece is projected into the groove-shaped portion, the bent piece is bent, and the side edge portion of the bent piece is locked to the side surface portion of the groove-shaped portion. The mechanical strength for is very high.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a vertical sectional view of an electric connector structure according to the present invention. This electrical connector structure comprises a male connector 1 and a female connector 2.

The male connector 1 is provided with a block-shaped connector main body 3 made of an insulating material, and a plurality of terminal insertion hole portions 4 are formed on the front side of the connector main body 3 in a predetermined horizontal direction in FIG. The terminals 6 are provided at intervals, and an opening 6 is opened in the end surface 5 of the terminal insertion hole 4. Further, in FIG. 3, a slit-shaped bent piece insertion groove portion 7 that faces upward is formed at a corner portion on the upper left side of the terminal insertion hole portion 4. A groove portion 8 is formed on the side surface of the connector body 3 along a direction perpendicular to the terminal insertion hole portion 4, and the terminal insertion hole portion 4 is opened on the bottom surface 8a of the groove portion 8. ,
The bent piece insertion groove portion 7 is opened on the side surface 8b of the groove portion 8.

The bottom surface 8a of the groove portion 8 between the adjacent terminal insertion hole portions 4 is formed as an abutting surface portion 9 to which a bent piece of an electric contact terminal described later comes into contact.

A lance portion 10 is provided on a surface portion 4b of the terminal insertion hole portion 4 which faces the surface portion 4a on which the bent piece insertion groove portion 7 is formed.

Reference numeral 12 is an electric contact terminal. As shown in FIG. 6, the electric contact terminal 12 includes a contact portion 14 and a connecting portion 15 connected to the rear portion of the contact portion 14, and the contact portion 14 has a configuration in which two contact pieces 13 are combined. A bent piece 14a is erected on the upper left side of the contact portion 14, and a lance 14b formed by cutting and raising is provided on the lower surface of the contact portion 14.

The connecting portion 15 is a crimping piece 1 which is erected in a U shape.
6 and a core wire crimping portion 19 having a U-shaped upstanding crimping piece 18.

Then, the core wire 21 of the electric wire 20 is crimped with the crimping piece 18 of the core wire crimping portion 19 and the covering portion 22 of the electric wire 20 is crimped with the crimping piece 16 of the covering crimping portion 17 to connect the electric contact terminal 12 to the electric wire 20. I am doing it.

Then, the contact portion 14 of the electric contact terminal 12 is inserted into the terminal insertion hole portion 4, the bending piece 14a is inserted into the slit-shaped bending piece insertion groove portion 7, and the end face 14c of the contact portion 14 is inserted into the terminal. When pressed against the end surface 4c of the hole portion 4, the lance portion 10 engages with the lance 14b of the electric contact terminal 12, and the bent piece 14a projects into the groove portion 8.

The projecting bent piece 14a is bent and brought into contact with the contact surface portion 9 so that the side edge portion of the bent piece 14a is formed into the groove portion 8.
The electric wire 20 is connected to the male-side connector 1 by being locked to the side surface portion 8c.

The female connector 2 is provided with a connector body 28 made of an insulating material, and a fitting portion 29 is provided on the connector body 28. A terminal mounting portion 31 of a bottom surface portion 30 of the fitting portion 29 is provided. The terminal 32 is attached to the terminal 32, and the terminal 32 projects into the fitting portion 29. This terminal 32 has an electric wire 3
3 is connected.

Therefore, the fitting portion 29 of the female connector 2
When the male connector 1 is inserted and fitted into the
The terminal 32 is inserted into the contact portion 14 of the terminal 32, and the terminal 32 comes into contact with the contact piece 13 to establish conduction.

According to the above-described embodiment, in the male connector 1, the first locking for locking the lance 14b of the electrical contact terminal 12 with the lance portion 10 of the socket body 3 and the bending piece 1 are provided.
Double locking with the second locking that locks the side edge portion of 4a to the side surface portion of the groove-shaped portion 8 is possible, the pull-out strength of the electrical contact terminal 12 is improved, and pull-out prevention is ensured. be able to.

[0021]

As described above, according to the present invention, the connector body is formed with the terminal insertion hole portion and the bent piece insertion groove portion connected to the terminal insertion hole portion, and the terminal is provided on the side surface portion of the connector body. By forming a groove-shaped part that makes a right angle to the insertion hole,
While opening the terminal insertion hole on the bottom of this groove,
A bent piece insertion groove is opened on the side surface of the groove, a lance is provided in the terminal insertion hole, and the contact portion of the electric contact terminal is inserted into the terminal insertion hole and protruded from the contact. The bent piece is inserted into the bent piece insertion groove portion, the lance portion is engaged with the lance of the electric contact terminal, and the bent piece is projected into the groove-shaped portion, Fold it,
Since the side edge of the bent piece is locked to the side surface of the groove, the first locking for locking the lance of the electric contact terminal on the lance of the socket body and the side of the bent piece. Double locking with the second locking that locks the edge part to the side surface part of the groove-like part is possible,
It is possible to improve the pull-out strength of the electrical contact terminal and ensure the pull-out prevention. Moreover, the bent piece is projected into the groove portion, the bent piece is bent, and the side edge portion of the bent piece is locked to the side surface portion of the groove portion. The mechanical strength for is very high.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an electric connector structure according to the present invention.

FIG. 2 is a cross-sectional view showing the electric connector structure before connection.

FIG. 3 is a perspective view in which a male side connector of the electric connector structure is partially omitted.

FIG. 4 is an exploded view of the male connector.

FIG. 5 is a perspective view in which a connector body of the male connector is partially omitted.

FIG. 6 is an explanatory diagram of an electric contact terminal before connecting electric wires.

FIG. 7 is a side view of the electric contact terminal.

FIG. 8 is a perspective view of the electric contact terminal.

[Explanation of symbols]

 3 Connector body 4 Terminal insertion hole 7 Bent piece insertion groove 8 Groove 10 Lance part 12 Electrical contact terminal 14 Contact part 14a Bent piece 14b Lance

Claims (1)

(57) [Scope of utility model registration request] 1. A connector body is provided with a terminal insertion hole portion and a bent piece insertion groove portion connected to the terminal insertion hole portion, and a groove formed on a side surface portion of the connector body at a right angle to the terminal insertion hole portion. A grooved portion is formed, a terminal insertion hole portion is opened on the bottom surface of the groove portion, a bending piece insertion groove portion is opened on a side surface of the groove portion, and a lance portion is provided on the terminal insertion hole portion, The contact portion of the electric contact terminal is inserted into the terminal insertion hole portion, the bent piece protruding from the contact portion is inserted into the bent piece insertion groove portion, and the lance portion is engaged with the lance of the electric contact terminal. And the bent pieces are projected into the grooved portion, the bent piece is bent, and the side edge portion of the bent piece is locked to the side surface portion of the grooved portion. Characteristic electrical connector structure.