JP2000067959A - Connector for printed board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for printed circuit board of right angle type, whereby a housing is lifted when a cable side connector is to be coupled or in any other similar case so as to preclude generation of any trouble such as poor performance of contacting. SOLUTION: A connector is structured so that a projection 23 capable of being engaged with a base board 10 is formed near an opening 18 provided beside a housing 11 which accommodates a socket to be fitted on a pin 12 having a right-angle L-shape. In particular, the projection is formed in a single piece with the bottom surface of the housing. The projection is protruded approx. in the same direction as the dip part 12a of the pin, wherein the forefront is formed in taper and hooked where an engage pawl 23b for slipoff prevention is provided, and passage of the engage pawl through a mounting hole 25 provided in the base board and engagement of the pawl with the opening edge of the hole are established through expansion and contraction of the relationship between the dip part and projection caused by an elastic deformation of the pin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a right angle type printed circuit board connector.

[0002]

2. Description of the Related Art There has been known a right angle type board connector having a pin contact bent and formed in a right-angled L-shape. Conventionally, as shown in FIG. 1, this type of board connector is formed by soldering a dip portion 3a of a pin 3 inserted into a through hole 2 of the board 1 so that the pin 3 and the copper foil 4 of the board 1 are soldered. Are electrically connected and the housing 5 is fixed to the substrate 1 (see Japanese Utility Model Publication No. 7-35340).

[0003]

However, in such a configuration in which the housing 5 is fixed to the substrate 1 via the pins 3, careless operation is required when the connector 8 on the cable 7 is connected. When an excessive upward force acts on the housing 5, the dip portion 3a of the pin 3 is displaced in the pulling-out direction as the opening 5a side of the housing 5 is lifted as shown by the imaginary line in FIG. Inconveniences such as falling off of the connector occur.

[0004] The present invention has been devised to solve such problems of the prior art, and its main objects are as follows.
An object of the present invention is to provide a board connector configured so that a housing such as a contact failure is not caused by lifting a housing when a cable-side connector is connected.

[0005]

In order to achieve such an object, in the present invention, the configuration of the board connector is defined as follows.
In the vicinity of an opening provided on the side of the housing to receive a socket that fits into a right-angled L-shaped pin,
Protrusions that can be engaged with the board are provided, thereby restricting the lifting of the housing at the opening side, which occurs when the cable side connector is connected. In particular, it is preferable that the projection is formed integrally with the bottom surface of the housing. According to this, the number of parts can be reduced and the manufacturing cost can be reduced.

In addition, the projection is projected in substantially the same direction as the dip portion of the pin, and has a hook-like shape having a tapered tip end and a retaining locking claw. The expansion and contraction between the dip portion and the projection due to the deformation preferably allows the retaining locking claw to pass through the mounting hole provided in the substrate and engage the locking latch claw with the opening edge of the mounting hole. According to this, the projection can be fitted to the mounting hole of the board, the dip part of the pin can be aligned with the through hole of the board, and then simply pushed in and fixed to the board, and the mounting operation can be done without complicating the configuration Can be simplified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 2 shows a situation in which a right-angle board connector constructed according to the present invention is mounted on a board. As shown in FIGS. 3 to 7, the board connector includes a housing 11 integrally formed of a synthetic resin material and a right angle L implanted in the housing 11.
A plurality (three in this case) of pins 12 are formed in a letter shape.

The housing 11 has a box shape with a bottom formed by an upper wall portion 13, a lower wall portion 14, left and right side wall portions 15, 16 and a bottom wall portion 17, and has a socket (not shown) fitted with the pin 12. An opening 18 is provided on the side to receive the insertion portion of the cable-side connector. This opening 18
The partition wall 19 is provided independently for each pin 12.

On the opening 18 side of the upper surface of the upper wall portion 13, there is formed a detachment preventing claw 20 which engages with the cable side connector to prevent the cable side connector from being detached from the main connector. On the other hand, on both left and right sides of the lower wall portion 14, the lower wall portion 14 is provided.
A pair of legs 21 is provided so as to protrude from the lower surface of the substrate 1, and the lower surface of the legs 21 comes into contact with the surface of the substrate 1.

The pin 12 is bent at a right angle after penetrating the bottom wall portion 17 from the connection portion 12b with the socket of the cable side connector, and the dip portion 12a projects downward. A pair of protruding pieces 22 are formed on the left and right sides of the rear side of the bottom wall 17 so as to project rearward from the bottom wall 17.

A hook-like projection 2 for fixing the housing 11 to the substrate 10 is provided on the lower surface of the lower wall 14 on the side of the opening 18.
3 protrudes in a direction orthogonal to the lower wall portion 14. The projection 23 is formed in a U-shaped cross section having ribs 23a on both sides, and the dip portion 12a of the pin 12 is formed.
A stopper locking claw 23b is provided on the side opposite to, and a tapered surface 23c is formed on the tip side thereof.

On the other hand, as shown in FIG.
A through hole 24 into which the dip portion 12a of the pin 12 and the projection 23 are inserted, and a mounting hole 25 are respectively provided in the thickness direction. The through-hole 24 and the mounting hole 25 come out of the mounting hole 25 when the dip portion 12a of the pin 12 is inserted into the through-hole 24, and the locking claw 23b of the projection 23 is hooked on the opening edge of the mounting hole 25 on the through-hole 24 side. They are provided at predetermined intervals so as to be stopped (see FIG. 7). The mounting hole 25 itself is formed to have a size that allows the protrusion 23 to be inserted with a margin in the front, rear, left, and right directions.

The board connector thus constructed is provided with a pin 1 in the through hole 24 and the mounting hole 25 on the board 10 side.
The two dip portions 12a and the projections 23 are fixed to the substrate 10 by pressing them against the substrate 10 in an aligned state.

At this time, the through holes 24 of the mounting holes 25
Surface 23c of the projection 23 abutting the side opening edge
The pushing force is changed to a force in a direction substantially perpendicular to the pushing force, and the pin 12 is mainly elastically deformed in response to the external force, so that the space between the projection 23 and the dip portion 12a of the pin 12 is expanded. Thereby, the passage of the locking pawl 23b through the mounting hole 25 is permitted. And retaining locking claw 2
When the pin 3b comes out of the mounting hole 25, the elastic deformation of the pin 12 is restored, and the locking pawl 23b engages with the opening edge of the mounting hole 25.

The dip portion 12a of the pin 12 inserted into the through hole 24 is soldered from the back side of the substrate 10 and is electrically connected to the copper foil 26 of the substrate 10.

[0017]

As described above, according to the present invention, it is possible to prevent lifting of the opening side of the housing which occurs when the cable side connector is connected, to avoid poor contact, and to improve reliability. can get. Furthermore, it is effective in avoiding complicated operation for mounting on a substrate and suppressing an increase in manufacturing cost due to a complicated configuration.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a conventional board connector.

FIG. 2 is a perspective view of the board connector according to the present invention as viewed from the bottom side.

FIG. 3 is a front view of the board connector shown in FIG. 2;

4 is a rear view of the board connector shown in FIG. 2;

FIG. 5 is a top view of the board connector shown in FIG. 2;

FIG. 6 is a cross-sectional view of the board connector cut along the line VI-VI shown in FIG. 3;

FIG. 7 is a vertical cross-sectional view of the board connector cut along the line VII-VII shown in FIG. 3;

[Explanation of symbols]

 1, 10 Substrate 2, 24 Through hole 3, 12 pin 5, 11 Housing 18 Opening 23 Projection 23b Locking claw 23c Tapered surface

Claims (3)

[Claims] 1. A right angle type printed circuit board connector comprising: a right angle L-shaped pin contact; and a housing having an opening on a side for receiving a socket contact fitted with the pin contact. A printed circuit board connector, wherein a projection engageable with the board is provided near the opening of the housing. 2. The printed circuit board connector according to claim 1, wherein the protrusion is formed integrally with a bottom surface of the housing. 3. The pin contact is projected in substantially the same direction as the dip portion of the pin contact, and is formed in a hook-like shape having a tapered distal end and provided with a retaining locking claw. Due to the expansion and contraction between the dip portion and the protrusion due to the elastic deformation of the retaining hole, the retaining locking claw passes through the mounting hole provided in the substrate and engages with the opening edge of the mounting hole. The printed circuit board connector according to claim 1 or 2, wherein