JPH0236304Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a locking device for a wiring board connecting connector that is directly attached to a wiring board.

[Prior art]

A conventional device of this type is shown in FIG. In the figure, 1 is an electronic device, 2 is a wiring board (for example, a printed wiring board) constituting this electronic device 1, and 3 is a connector that is directly attached to this printed wiring board 2 and is connected to an external device (not shown). , 4 is a locking protrusion provided on a part of this connector 3, and 5 is a connecting terminal provided on the connector 3 for connection to the printed wiring board 2, which is in close contact with the surface of the wiring board. It is molded at the same position, and is also flush with the lower surface of the locked protrusion 4. Reference numeral 6 denotes a screw body that passes through the printed wiring board 2 and the locked protrusion 4 and fixes the connector 3 to the printed wiring board 2.

That is, in this device, terminals 5 of a connector 3 are mounted on a printed wiring board 2, and a screw body 6 is used to tighten a locking protrusion 4 provided on a part of the wiring board 2 and the connector 3. 2 and the connector 3 are locked together.

By the way, in the fastening section of this device, since the locked protrusion 4 is provided only on one side edge of the connector 3, the printed wiring board 2 can be attached only on the 4 side of the locked protrusion.
There is a risk that the wiring board 2 may not be in close contact with each other, and there is a defect that the wiring board 2 is tilted. This state is shown in FIG. As a countermeasure against this problem, the locking protrusions 4 may be provided on both side edges of the connector 3, but in this case, there is a drawback that the mounting area for electronic components is reduced. Another method is to bend the terminals 5 after attaching them to the printed wiring board 2, but since this is done after the wiring board 2 is tilted, There is a problem with cracks or damage.

[Summary of the idea]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and in addition to forming grooves on the top and bottom surfaces of the protrusion to be locked of the connector,
The present invention provides a locking device for a connector for wiring board connection, which eliminates the inclination of the wiring board after fastening by forming a wedge-shaped projection on the bottom surface, thereby facilitating the work of locking the connector.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings. FIG. 3 is an enlarged view of the main part of the locked protrusion of the connector for connecting a wiring board according to this invention. In FIG. Approximately U-shaped grooves 7a and 7b are formed, and a wedge-shaped projection 7c is formed on the bottom half (outside). Note that the other configurations are the same as those of the prior art, so explanations will be omitted.

Next, the effect will be explained. After the terminals 5 of the connector 3 are attached to the printed wiring board 2, the screw body 6 is passed through the locked protrusion 7 of the connector 3, and the connector 3 is attached to the printed wiring board 2.
However, since a wedge-shaped projection 7c is provided on the bottom surface of the locked projection 7, the printed wiring board 2 is forcibly tilted in the positive direction as shown in FIG.

In this state, when the connector 3 is fastened to the printed wiring board 2 by passing through the locked protrusion 7 with the screw body 6, the wedge-shaped protrusion 7c deforms in the tightening direction until it becomes flat. Complete with . Naturally, the grooves 7a and 7b on the top and bottom surfaces of the locked protrusion 7 are also deformed by the amount of the protrusion 7c, but as shown in FIG. 5, the structure is such that this deformation can be absorbed.

[Effect of idea]

As described above, in this invention, grooves are provided on the top and bottom surfaces of the protrusion to be locked, and a wedge-shaped projection is formed on the outside of the bottom surface to lock the connector to the wiring board. The board and the connector are brought into close contact with each other and are reliably connected, and the locking operation can be easily performed, which is an excellent effect.

[Brief explanation of the drawing]

1 and 2 are a perspective view and a front view showing a conventional locking device for a connector for connecting a wiring board, and FIG. 8 is a diagram showing a locking device for a connector for connecting a wiring board according to an embodiment of the present invention. FIG. 4 is an explanatory view showing the assembled state, and FIG. 5 is a front view of the same. In the figure, 2 is a wiring board, 3 is a connector, 7 is a locked projection, 7a and 7b are grooves, and 7c is a wedge-shaped projection. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a connector in which a protrusion to be locked formed on one side edge of the connector is brought into contact with the end of the wiring board and fixed at one point with a screw, grooves are provided on the top and bottom surfaces of the protrusion to be locked, and The outer side of the bottom surface in contact with the wiring board is formed into a wedge-shaped protrusion that slopes downward from the center of the concave groove toward the outside with respect to the lateral direction of the connector, and a screw passes through the inside of the concave groove. A locking device for a connector for wiring board connection, characterized by: