JP2550665Y2 - Surface mount type connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface mount type connector.

[0002]

2. Description of the Related Art A conventional surface mount type connector is formed in a laterally inverted U-shape, and fixed at both ends by bending at right angles to form a soldering portion at both ends of a connector body. Generally, they are straddled, and the soldered portion is fixed to the printed circuit board by soldering. However, according to this connector, when the fixing bracket is not correctly straddled to the connector body, when the connector is placed on the printed circuit board, the soldered portion of the fixing bracket rises from the conductive portion of the printed circuit board. In some cases, the soldering by the reflow soldering method may not be performed reliably or at all, and as a result, the soldering of the contact and the conductive portion of the printed circuit board may not be performed, or even if the soldering is performed. There has been a problem that the contact and the conductive portion may be soldered by vibration or other impact. Therefore, as a solution to this, as shown in FIG. 5, a soldering portion a is formed by bending at both ends at right angles, and a screw hole b is formed at an intermediate portion thereof. There has been proposed a configuration in which a fixing metal c is straddled on both ends of a connector body e having a through hole d by using the formed plate-shaped fixing metal c.

[0003] After mounting on a printed circuit board f, a screw h is screwed into a screw hole b of a fixture c through a hole g of the printed circuit board f and a through hole d of the connector body e. f, and the soldering portion a of the fixing metal c is brought into close contact with the conductive portion i of the printed circuit board f, so that the soldering of the fixing metal c to the conductive portion i is ensured.

[0004]

The connector shown in FIG. 5 has a structure in which the printed circuit board or the connector is vibrated before the fixing metal c is soldered to the printed circuit board f after being fastened to the printed circuit board f using the screw h. Or, when an impact is applied, the screw h may be loosened due to vibration or impact, and at the worst, the screw h may fall off. There has been a problem that soldering between the j and the conductive portion i of the printed circuit board f cannot be performed, or even if the soldering can be performed, the soldering may be removed due to vibration, impact, or the like. An object of the present invention is to solve such a conventional problem.

[0005]

According to the present invention, there is provided a surface mount type connector provided with a fixture for fixing a connector body to a printed board by soldering the board to the printed board. The connector body has a through hole in a fixing portion to the printed circuit board, and the fixing bracket is formed in a laterally inverted U shape, and a soldering portion formed by bending both ends at right angles. And a plate-like piece having a pair of parallel branch pieces in the middle of which a locking projection for locking to the edge of the hole of the printed circuit board is formed on the outside. The pair of branch pieces are inserted into the through holes of the connector body, and the locking projections are projected from the through holes.

[0006]

In the above construction of the present invention, since the fixing bracket has a pair of parallel branch pieces in the middle portion, on the outside of which a locking projection for locking to the edge of the hole of the printed circuit board is formed, the connector is used. It is mounted on a printed circuit board, and the pair of parallel branch pieces are fitted into holes of the printed circuit board, and the pair of locking projections of the branch piece are locked to the edge of the hole. Thus, even when vibration or the like is applied to the printed circuit board or the connector, the soldering portion of the fixture and the conductive portion of the printed circuit board are not separated from each other, so that the soldering is reliably performed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the figure, reference numeral 1 denotes a connector main body made of an electrically insulating material, and 2 denotes a fixing bracket. Female contacts 3 are arranged and mounted in two rows on the connector body 1, and through-holes 4, 4 are provided at both ends, which are fixing portions to the printed circuit board by the fixing bracket 2. The fixing bracket 2 is formed in a laterally inverted U-shape, and has soldering portions 5 and 5 formed at right and left ends thereof by bending at right angles.
It is a plate-like piece having a pair of branch pieces 6, 6 extending in the direction of the soldering portion 5 by being bent at a right angle. And a locking projection 7 that locks the lock. When the fixing metal fitting 2 is inserted into the through hole 4 of the connector body 1 and fitted to the fixing portion and straddled, the fixing protrusions 7 of the branching pieces 6 and 6 are penetrated. It has a configuration in which it projects from the hole 4 and the lower surfaces of the soldering portions 5 and 5 are substantially flush with the lower surface of the fixing portion of the connector body 1.

When the connector of the above embodiment having the above configuration is mounted on a printed circuit board 8 and the pair of branch pieces 6, 6 of the fixture 2 are inserted into the through holes 9 of the printed board 8, The locking projections 7, 7 are locked to the edge of the through hole 9, and the connector is temporarily fixed to the printed circuit board 8 by the elastic force of the pair of branch pieces 6, 6. In this state, the pair of soldering portions 5 of the fixture 2 come into contact with the conductive portions 10, 10 of the printed circuit board 8 to which solder has been previously attached, and are soldered by heating. According to the reflow soldering method, at this time, the terminal portions 3a of the female contacts 3 are also soldered to the conductive portions 10a of the printed circuit board 8 to which solder has been previously attached. In FIG. 1, reference numeral 11 denotes a projection that fits into the through hole 12 of the printed circuit board 8 and positions the connector main body at a predetermined position.

[0009]

[Effects of the Invention] The present invention is configured as described above. Therefore, even if vibration or impact is applied to the printed circuit board or the connector body before the fixing metal is soldered to the conductive portion of the printed circuit board, the fixing metal is used. The soldering part of the connector contacts the conductive part of the printed circuit board and can be reliably soldered, and the soldering between the contact and the conductive part of the printed circuit board does not come off even if force is applied to the connector body. Have.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment shown in FIG.

FIG. 3 is a side view of the embodiment shown in FIG. 1;

FIG. 4 is a perspective view of a fixture used in the embodiment shown in FIG. 1;

5A and 5B are a front view and a bottom view of a main part of a conventional surface mount type connector.

[Description of Signs] 1 Connector body 2 Fixing bracket 3 Female contact 4 Through hole 5 Solder part 6 Branch piece 7 Locking convex part 8 Printed circuit board 9 Through hole 11 Conductive part

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 3-60768 (JP, U) Japanese Utility Model 1-70273 (JP, U) Japanese Utility Model 3-33972 (JP, U) Japanese Utility Model 4- 133384 (JP, U) Japanese Utility Model 5-23429 (JP, U) Japanese Utility Model 1-165574 (JP, U) Japanese Utility Model 5-69883 (JP, U) Japanese Utility Model 4-55775 (JP, U) Japanese Utility Model Hei 4-38672 (JP, U) Japanese Utility Model Showa 63-9773 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A surface mount type connector comprising a fixing member for fixing a connector body to a printed circuit board by soldering to the printed circuit board.
The fixing part to the printed circuit board has a through hole, the fixing bracket is formed in a laterally inverted U-shape, and has a soldering part formed by bending at a right angle at both ends thereof, An intermediate portion thereof is a plate-like piece having a pair of parallel branch pieces formed on the outside with a locking projection for locking the hole edge of the printed circuit board, and the fixing bracket is attached to the fixing portion of the connector body. A surface mount type connector, wherein the connector is fitted and straddled, the pair of branch pieces are inserted into the through holes of the connector body, and the locking projections are projected from the through holes.