JP2003203693A - Electric connector equipped with locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric connector having a locking device which is mainly good in a sort of grounding and improved in stability to fixing of a child circuit board. <P>SOLUTION: The electric connector comprises an insulating main body, plastic members for positioning a child circuit board inserted into a central slot in the insulating main body extend respectively from both opposite ends of the insulating main body, a metallic member used in reinforcing the plastic member is fixed on to each of the plastic members, an open-sided welded part in a horizontal direction extends from the metallic member in a lateral direction from the lower side part of the plastic member, an elastic ground part further extends from the welded part with a gradient on an upside, and an elastic contact is provided on the elastic ground part. The elastic ground part can realize a grounding effect by contact with the child circuit board, and proper normal force is applied to the child circuit board, whereby the positioning thereof is strengthened. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a type of electrical connector, and more particularly to an electrical connector into which a type of child circuit board can be inserted and which is provided with a locking device that provides a grounding function for the child circuit board. Is.

[0002]

2. Description of the Related Art The electrical connector of the present invention is mounted on a circuit board and by inserting a child circuit board,
Electrical connection can be made between both circuit boards. To smoothly insert the child circuit board, first incline the child circuit board at a certain angle with the electrical connector, insert the child circuit board into the insertion port with zero insertion force, and then downwardly move the conductive terminal in the insertion port. A locking device having sufficient strength and resilience should be provided on the electrical connector in order to keep the child circuit board in the conductive position while being pressed to the conductive position in which the and are conducted.

As a conventional locking device, there is a locking device formed integrally with an insulating main body by a plastic material, or a locking device which is made of a metal material and then plastic injection-molded on the insulating main body. The former has poor elasticity when engaged and is easily broken, while the latter has better engaging elasticity, but is costly.

[0004]

[Patent Document 1] Republic of China utility model registration application No. 87222
Publication No. 119

In view of the above problems, the locking device is formed by combining a metal body and a plastic body installed separately. As shown in FIG. 5, the locking device for the electrical connector is
It includes a plastic body 40 integrally formed with the insulating body for locking the child circuit board, and a metal body 41 for strengthening the plastic body, the metal body 41 further including a solder pad (not shown) on the circuit board. The welding piece 42 used to improve the welding stability of the electrical connector.
Are extended relatively horizontally. However, since the electric connector lacks an effective grounding circuit, it is difficult to eliminate the interference brought in on the sub circuit board inserted in the electric connector, and the signal transmission quality is affected.
Also, after the child circuit board is inserted into the electrical connector,
The protrusion 43 provided on the plastic body 40 and the terminal in the insertion port 44 can be combined and positioned, but when the child circuit board receives an unreasonable external force such as vibration, It is extremely difficult to position and it becomes easy to disengage from the specified position.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electrical connector having a locking device having a good grounding function and improved stability for fixing a secondary circuit board.

[0007]

In order to achieve the above object, the electrical connector of the present invention includes an insulating body,
The insulating body extends longitudinally and has a central slot.
A pair of support bases are installed at opposite ends of the insulating body, the support bases have positioning surfaces for positioning the slave circuit boards, and a lock device is provided on each support base. , These locking devices include deformable plastic and metal bodies. The metal body has a plate-shaped main body fixed to the plastic body, and extends a bent horizontal weld from the lower side of the main body, and the weld is further inclined upward. When the elastic ground portion is extended, extends beyond the positioning surface of the support base and the child circuit board is inserted, the elastic ground portion abuts the child circuit board to realize a grounding effect. It is possible to further position the child circuit board by applying a vertical force to the child circuit board, and it is possible to avoid a displacement error.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIGS. 1 and 2, an electric connector 1 of the present invention includes an insulating main body 10 extending in a longitudinal direction, and a child circuit board (see FIG. A longitudinally extending central slot 11 is provided for inserting (not shown). On both sides of the central slot 11,
A plurality of storage grooves 12 for storing a corresponding number of conductive terminals 15 are provided, and the terminals 15 are brought into contact with both side surfaces of a child circuit board (not shown) by a sandwiching contact method.

Support bases 13 are installed on both ends of the insulating main body 10, and the upper surfaces of the support bases 13 provide a positioning surface 14 for the child circuit boards when the child circuit boards are in the conductive position. can do. The lock device 20 is installed outside the support base portion, and each lock device 20 is integrally molded with the insulating main body 10 and a plastic body 21 above the support base portion 13 corresponding to the insulating main body, and the plastic body 21. It includes a metal body 22 that is fixed while interfering with the body.

The plastic body 21 is integrally extended from the insulating main body 10 in the forward direction, and the front end portion thereof is separated from the upper portion 211 and the lower portion 212 by a slot.
A locking projection 213 extends inward from the free end of 11.

Referring to FIGS. 3 and 4 together, the metal body 22 has a locking portion 220 fixed in the insulating body on the outer side of the support base, and the locking portions 220 are separated from each other in the forward direction. The plate-shaped main body portion 221 and the welded portion 222 thus extended are extended.
The plate-shaped body 221 is an upper portion 21 of the plastic body 21.
Since it is fixed to the side edge of the upper portion 211 of the plastic body 21 by the hook-shaped first locking piece 223 which is located on the outer side of the plate body 221 and the upper portion of the plastic body 21, 211 will be fixed. The main body portion 221 further corresponds to the lower portion 212 of the plastic body 21, and each of the second locking piece 224 and the third locking piece 225.
Are extended, and both of these locking pieces are
When the upper part 211 of the lower part is bent, it acts to limit excessive deformation to the lower part 212. The welding part 222 is located on the lower side of the body part 221, and comprises a connection part 2220 and a horizontal welding piece 2221 installed at the end part of the connection part, and the connection part 2220 is assembled in the lower part 212 of the plastic body 21. The welding piece 2221 is horizontally extended inward from the mounting surface of the electrical connector 1.

The grounding portion 30 has an elastic cantilevered arm structure, and the grounding portion 30 is inclined upward from the welding piece 2221 to the side edge close to the locking portion 220, and is bent at the end portion thereof. Elastic contacts 300 are formed. The contact 300 extends and extends beyond the positioning surface 14 of the support base 13. When the child circuit board (not shown) is inserted, the contact 300 abuts on the conductive circuit on the side surface of the child circuit board, and the interference brought into the child circuit board can be immediately removed. Also, contact 30
Since the vertical force that acts on the side surface of the child circuit board due to the elastic deformation of 0 is in the same direction as the vertical force that the conductive terminal 15 acts on the child circuit board, it cooperates with the lock protrusion 213 (FIG. By being able to hold (not shown), the fixing effect can be improved, and it is not separated from the predetermined position by an inappropriate external force such as vibration.

The above-described embodiment is merely a better embodiment of the present invention, and any modifications or changes in details that can be made by those who are familiar with the technology of the present invention based on the present invention are also possible. Of the claims.

[Brief description of drawings]

FIG. 1 is a perspective exploded view of an electric connector having a locking device of the present invention.

FIG. 2 is a perspective assembly view of an electric connector having a locking device of the present invention.

FIG. 3 is a perspective exploded view of a locking device of an electrical connector having the locking device of the present invention.

FIG. 4 is a perspective assembly view of a lock device of an electrical connector having the lock device of the present invention.

FIG. 5 is a perspective assembly view of a conventional electrical connector according to the present invention.

[Explanation of symbols]

1 electrical connector 10 Insulation body 11 Central slot 12 terminal storage groove 13 Support base 14 Positioning surface 15 Conductive terminal 20 Lock device 21 plastic body 22 metal body 30 Ground 40 plastic body 41 metal body 42 weld pieces 43 Projection 44 insertion port 211 upper part 212 lower part 213 Lock protrusion 220 Locking part 221 body 222 Weld 223 First locking piece 224 Second locking piece 225 Third locking piece 300 contacts 2220 connection 2221 welding pieces

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5E021 FA05 FA09 FB05 FB13 FC03                       FC19 FC25 FC29 FC31 HA07                       HB11 HC12 HC14 LA10 LA15                 5E023 AA04 AA16 BB01 BB11 BB21                       CC02 GG02 HH12 HH16

Claims (9)

[Claims] 1. A support base provided with a locking device, extending in the longitudinal direction and having a central slot, and support bases installed at opposite ends of the insulation main body, each having a positioning surface for positioning a slave circuit board. And a locking device that includes a deformable plastic body and a metal body, the plastic body extending entirely from the support base and having a locking projection at its free end. , A locking part that is assembled on the plastic body and that fixes the metal body to the plastic body, a strengthening part that strengthens the plastic body, a horizontal welding part that extends from the locking part, and an upper part that is inclined from this welding part. An elastic grounding portion extending in a direction, and a free end portion of the elastic grounding portion is stretched higher than a positioning surface of the support base portion. 2. The electrical connector with a locking device according to claim 1, wherein the plastic body is divided into an upper portion and a lower portion at an end thereof, and a middle portion is separated by a slot. 3. The locking device according to claim 2, wherein the reinforcing portion has a bent locking piece for integrally fixing the reinforcing portion and the upper portion of the plastic body. Electrical connector. 4. The reinforcing portion further has a hook-shaped portion bent downward, and the lower portion of the plastic body is excessively bent by bringing the hook-shaped portion into contact with the lower portion of the plastic body. The electrical connector with the locking device according to claim 3, wherein the locking can be restricted. 5. The electrical connector with a locking device according to claim 1, wherein the welded portion is located at a lower side portion of the reinforcing portion and horizontally extends inward. 6. A locking device having a grounding function assembled to an electric connector for inserting a child circuit board, comprising a deformable plastic body and a metal body, the plastic body having a free end. The metal body is assembled to a plastic body, a plate-shaped main body portion, and a welded portion that is positioned below the plate-shaped main body portion and is bent and extended with respect to the main body portion. And an elastic grounding portion inclined upward from the welded portion and extending upward, the elastic grounding portion having a free end bent to form a contact capable of elastically contacting the child circuit board. To do. 7. The grounding function according to claim 6, wherein the plate-shaped main body portion is provided with a bent locking piece for integrally fixing the main body portion and the plastic body. Locking device. 8. The plate-shaped main body portion further has a hook-shaped portion bent downward, and by allowing the hook-shaped portion and the plastic body to come into contact with each other, it is possible to limit excessive bending of the plastic. A locking device having a grounding function according to claim 7. 9. The locking device having a grounding function according to claim 6, wherein the metal body is further provided with a locking portion that is coupled to the plastic body while interfering with the plastic body.