JPS597191B2 - Electrical connector latching mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a latch mechanism for preventing disconnection when a connector is mated and connected.

FIG. 1 shows an external view of a latch mechanism of a conventional electrical connector.

Reference numeral 12 indicates a male pin housing, which includes a metal pin 11.

The pins 11 are electrically connected to the printed wiring board 14 by means such as soldering. The purpose of this connector is to electrically connect the printed circuit board 14 and another printed circuit board 16. For this purpose, the male pin 11 is inserted into a housing IT containing a female socket contact (not shown) connected to the printed circuit board 16 by soldering or the like.

At this time, in order to prevent the male and female connectors from separating, the latch 13
is used. FIG. 2 shows a state in which the latch 13 is closed and the connector is connected.

FIG. 3 shows the state in which the latch is open and the connector is open. Such conventional techniques have the following drawbacks. 1. When the latch 13 is opened, the arms of the latch spread outward, which takes up space and is not suitable for high-density mounting.

2. Since the latch is attached to the side of the printed circuit board 14, it is difficult to operate when the printed circuit board 14 is used as a fixed side and the printed circuit board 16 is used as a movable side.

3. Since the latch 13 protrudes from the fixed printed board 14, it is easy to break.

4. Since there is no connector release mechanism, it is necessary to pull the printed board 16 to the right when releasing the connector, and it is not easy to apply this pulling force manually, especially when there are a large number of pins.

The object of the present invention is to solve all the above-mentioned drawbacks, to be suitable for high-density mounting, to have no protruding part from the fixed printed board 14, and to have a latch mechanism on the movable printed board 16 side.
It is an object of the present invention to provide a latch mechanism for an electrical connector, which also has a connector release mechanism.

FIG. 4 shows an external view of the latch mechanism according to the present invention.

22 indicates the housing of the male side pin 21, and the metal pin 2
1.

The pins 21 are electrically connected to the printed wiring board 24 by means such as soldering. The purpose of this connector is to electrically connect the printed circuit board 24 to another printed circuit board 26.
For this purpose, the male pin 21 is inserted into a housing 27 containing a female socket contact (not shown) that is electrically connected to the printed circuit board 26 by means such as soldering. At this time, a latch 23 is used to prevent the female connector from coming off.

In FIGS. 5 and 6, locking holes 30 are provided on both end surfaces of the fixed connector 22 attached to the fixed printed board.
A pair of latches 23 are each rotatably supported by a fulcrum 25 on the movable printed board 26.

The latch 23 has a handle pull and a U-shaped tip 33 integrated between the fulcrum 25, and the U-shaped tip 33 is inserted into the locking hole 30 provided in the fixed connector. and the insertion surface 32 of the fixed side connector.
It has a detachment protrusion 29 that comes into contact with.

FIG. 5 shows the latch 23 closed and the connector engaged. The locking protrusion 28 of the latch 23 is connected to the housing 2.
The connectors are engaged with the two locking holes 30, and the mutual engagement between the connectors is maintained. FIG. 6 shows the latch 23 open and the connector released. By pushing the handle of the latch 23 inward, the tip of the locking protrusion 28 of the latch is pushed out of the locking hole 30 and the connector is disengaged.

At the same time, the latch release projection 29 presses against the wall 32 of the male housing, and the connector is released from the latch without applying any extra tension to the printed circuit board 26. Since the structure is as described above, the present invention has the following effects.

1 When the latch is released, the latch arm narrows inward, which saves space and is suitable for high-density mounting.

Since the two latches are attached to the printed circuit board 26 side, operation is easy when the printed circuit board 24 is used as a fixed side and the printed circuit board 26 is used as a movable side.

Since the three latches 23 are attached to the movable printed board 26, there is no protrusion on the fixed printed board 24, and there is little risk of the connector breaking.

Since it has a four-connector release mechanism, there is no need to pull the printed board 26 to the right when releasing the connector, and the connector can be easily released.

In particular, even in the case of a large number of pins (approximately 50 pins or more), the lever of the latch is used, so release is easy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional connector with a latch mechanism, FIGS. 2 and 3 are top views thereof, FIG. 4 is an external view of a connector with a latch mechanism of the present invention, and FIGS. 5 and 6. is its top view. 22...Fixed side connector, 23...Latch, 24...Fixed side printed board, 25...
...Fully point, 26...Movable side printed board, 27
...Movable side connector, 28...Lock protrusion, 29...Detachment protrusion, 30...
・Lock hole, 31...Handle, 32...
- Connector insertion surface, 33... U-shaped tip.

Claims (1)

[Claims] 1 A latch mechanism that locks the movable connector so that it does not come off after the movable connector is mated and connected to the fixed connector, and has a locking protrusion on the movable connector and a detachment mechanism that abuts the insertion surface of the fixed connector. A latch is formed by integrating a protruding tip and a handle, and is supported by the movable connector by a fulcrum between the tip and the handle, and the locking protrusion and the locking protrusion are provided on both sides of the fixed connector. A latch mechanism for an electrical connector, characterized in that it is provided with means for engaging.