JP4091607B2 - connector - Google Patents

Description

  The present invention relates to a connector used on a printed wiring board.

  Conventionally, the connector 1 mounted and used on this type of printed wiring board includes a surface mount type (SMT) and an insertion mount type (THT), and a surface mount type is an example. As shown in FIG. 1, a socket body 11 and an outer frame 12 are provided. More specifically, the socket body 11 is made of an insulator, and has a connecting rod (not shown) that extends in the front-rear direction and opens at the front end surface thereof. The terminal 111 is exposed rearward along the rear end face along the wall surface in the connecting rod. The outer frame 12 is a hollow body having a front opening and a rear opening, and the socket body 11 is fitted so that the front end face is exposed to the front opening and the rear end face is exposed to the rear opening, and A solder terminal 123 is provided near the bottom edge. These solder terminals 123 are intended to be welded and fixed to a printed wiring board, and the surface-mount type terminals, as shown in the drawing, from the left and right bottom edges of the outer frame to the left and right, respectively. Although not shown in the figure, the insertion mounting type has a portion that can be brought into contact with the printed wiring board surface in a face-to-face manner, and extends downward from both the left and right bottom edges of the outer frame. In addition, elastic pieces 122 are provided on the left and right side surfaces and the upper surface of the outer frame 12, and the socket body 11 is pressed and positioned inside the outer frame 12 by them.

  However, the connector 1 is only positioned by pressing the socket body 11 with the elastic piece 122, and the outer frame 12 and the socket body 11 are not firmly fixed. When the plug is repeatedly inserted and removed, the socket body 11 receives a force for pushing and pulling it out of the outer frame 12, and the elastic piece 122 is elastically fatigued, so that the entire service life of the connector 1 is likely to be shortened quickly. . Furthermore, if it is a surface mount type, when the connector 1 is welded to the printed wiring board, it cannot be said that the total distance of the peripheral portion of the solder terminal 123 that becomes a connection boundary with the solder for welding is long. The fixing strength by soldering between the connector 1 and the printed wiring board is not sufficient.

  In view of the above-described drawbacks, a first object of the present invention is to provide a connector capable of reliably positioning a socket body inside an outer frame and improving the service life of the entire connector.

  Furthermore, a second object of the present invention is to provide a connector in which the socket body can be reliably positioned inside the outer frame and the fixing strength with the printed wiring board is increased.

In order to achieve the first object, the present invention comprises an insulator, and a connection rod extending in the front-rear direction and opened in the front end surface is formed therein, and a plurality of terminals for electrical connection Is a hollow body having a socket body that is exposed to the rear through the rear end face along the wall surface in the connecting rod, and a front opening and a rear opening, and the front end face is in the front opening, An outer frame in which the socket body is fitted such that an end surface is exposed to the rear opening, and a solder terminal to be welded to the printed wiring board by solder is provided near the bottom edge of the socket body. In the connector mounted on the printed circuit board and used, the outer frame is further provided with a retaining claw, and the retaining claw extends from near the rear end of the outer frame to extend the rear end surface of the socket body. and stopped by pressing the lower surface of the outer frame Is recessed from bottom to top in contact with the lower surface of the socket body, said recess with pawls sandwiching fixing the socket body is formed, to provide a connector which is characterized in that.

  In order to achieve the second object, according to the present invention, in the connector having the above structure, there are at least two terminals for soldering, and printed wiring from the left and right bottom edges of the outer frame to the left and right respectively. There is provided a connector having a portion that can be brought into contact with the substrate surface in a face-to-face manner, the portion being at least bifurcated and mounted on a surface-mount type printed wiring board to be welded.

  According to such a structure, since the retaining claw extends from near the rear end of the outer frame and holds the rear end surface of the socket body, the socket body is inserted when a plug of another electronic device is inserted. Without being pushed out of the outer frame, it can be firmly positioned inside.

  According to such a structure, at the time of surface mounting, the solder terminal is branched at least into two branches, so when mounted on a printed wiring board and welded, it becomes a connection boundary with the solder for welding. Since the total distance of the peripheral portion of the terminal becomes longer, the fixing strength with the printed wiring board is increased.

  The above object and other objects, features, and advantages of the present invention will become apparent from the following detailed description of embodiments with reference to the drawings.

  FIG. 2 is a perspective view obliquely viewed from the front of the first embodiment of the connector according to the present invention, which is a surface mount type. FIG. 3 is a perspective view obliquely viewed from the back side of the embodiment. FIG. 4 is a rear view when mounted on the printed wiring board of the embodiment. FIG. 5 is a bottom view of the embodiment. FIG. 6 is a perspective view of the connector according to the second embodiment of the present invention, which is an insertion mounting type, viewed obliquely from the back side. FIG. 7 is a side view when mounted on the printed wiring board of the embodiment.

  The connector according to the present invention is basically of a socket body 3 and an outer frame as shown in FIGS. 2, 3 and 6, regardless of whether it is a surface mount type or an insert mount type. 4 is provided.

  The socket body 3 is made of an insulator, and has a connecting rod 32 formed in the interior thereof, extending in the front-rear direction and opening in the front end surface 31, and a plurality of terminals 36 for electrical connection are provided in the connecting rod 32. It is exposed to the rear through the rear end face 34 after being along the wall surface. The outer frame 4 is a hollow body having a front opening 42 and a rear opening 43. The socket body 3 is exposed so that the front end face 31 is exposed to the front opening 42 and the rear end face 34 is exposed to the rear opening 43. The solder terminals (45 and 45 in FIGS. 2 and 3 and 46 and 46 in FIG. 6) are provided near the bottom edge.

  The outer frame 4 is further provided with retaining claws 44, 44 that extend from near the rear end of the outer frame 4 and press the rear end surface 34 of the socket body 3. Yes. Preferably, the pawls 44, 44 extend from near the rear end of the upper surface 41 of the outer frame 4 as shown. The reason for extending from the vicinity of the rear end of the upper surface 41 is to enable easy processing in the manufacturing process.

  Then, the surface mount type connector according to the first embodiment of the connector according to the present invention will be described. Such a connector is mounted on a surface-mount type printed wiring board 2 as shown in FIG. 4 and is welded. In the basic structure, the solder terminals 45 and 45 have at least two terminals. Each of which has a portion 452 (see FIGS. 2 and 3) that can contact the printed wiring board 2 face-to-face from the vicinity of the left and right bottom edges of the outer frame 4 to the left and right. Branches to 4521 and 4522.

  Furthermore, as shown in FIG. 5, the substantially central portion of the lower surface 415 of the outer frame 4 has a shape that is recessed from the bottom to the top and contacts the lower surface of the socket body 3 and that the left and right unevenness is aligned along the front-rear direction. A linear depression 416 extending in the manner described above is formed. The recess 416 clamps and fixes the socket body 3 together with the retaining claws 44 and 44.

  For the connector of the second embodiment of the connector according to the present invention, the connector is applied to the printed wiring board 5 by the insertion mounting method as shown in FIG. There are at least two terminals 46, 46, which extend downward from near the left and right bottom edges of the outer frame 4 and are inserted into the perforations 51 in the printed circuit board 5 of the insertion mounting type and welded. Except for the difference, the configuration is the same as that of the first embodiment, and a detailed description thereof will be omitted.

  4 and 7, the socket body 3 itself has positioning protrusions 38 extending downward from a plurality of lower surfaces. When the connectors of the first and second embodiments of the present invention are mounted on the printed wiring boards 2 and 5, respectively, the positioning protrusions 38 correspond to the positioning protrusions 38 of the printed wiring boards 2 and 5 first. What is necessary is just to insert and position in the piercing | open_holes 21 and 51 which are open in the.

  As mentioned above, although demonstrated based on embodiment, this invention is not limited to the said embodiment. For example, according to the present invention, when the elastic piece 414 as in the illustrated conventional example is provided, the socket body 3 can be clamped and fixed together with the recess 416 and the retaining claws 44 and 44, and a more excellent effect can be obtained. Play. In the above description, the solder terminals 45 and 45 are branched into two forks 4521 and 4522. However, branching into two or more forks is more preferable because the fixing strength to the printed wiring board is further increased. That is, various modifications and changes can be made without departing from the features and objects of the present invention.

  The connector according to the present invention is mounted and applied to both a surface-mount type printed wiring board and an insertion-mount type printed wiring board. The socket body can be reliably positioned inside the outer frame, and the service life of the entire connector can be improved.

The perspective view of the connector of a prior art example. The perspective view seen diagonally from the front of what was made into the surface mounting type | mold of 1st Embodiment of the connector concerning this invention. The perspective view seen diagonally from the direction of the back of a 1st embodiment of a connector concerning the present invention. The rear view at the time of mounting on the printed wiring board of 1st Embodiment of the connector concerning this invention. The bottom view of 1st Embodiment of the connector concerning this invention. The perspective view seen diagonally from the direction of the back of what was made into the insertion mounting type of 2nd Embodiment of the connector concerning this invention. The side view at the time of mounting in the printed wiring board of embodiment of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Printed circuit board, 21 ... Perforation, 3 ... Socket body, 31 ... Front end surface, 32 ... Connection rod, 34 ... Rear end surface, 36 ... Terminal for electrical connection, 38 ... Positioning protrusion, 4 ... Outer frame, 41 ... Upper surface of outer frame, 414 ... elastic piece, 415 ... lower surface of outer frame, 416 ... recess, 42 ... front opening, 43 ... rear opening, 44 ... retaining claw, 45 ... terminal for solder, 452 ... printed circuit board surface Portions that can be contacted face-to-face, 4521, 4522, bifurcated, 46, terminals for solder, 5 ... printed wiring board, 51 ... perforations.

Claims (5)

A connection rod made of an insulator and extending in the front-rear direction inside thereof and having an opening at the front end surface thereof is formed, and a plurality of terminals for electrical connection follow the wall surface in the connection rod and then pass through the rear end surface Socket body exposed rearward,
A hollow body having a front opening and a rear opening, wherein the socket body is fitted so that the front end face is exposed to the front opening and the rear end face is exposed to the rear opening, and near the bottom edge thereof. An outer frame provided with solder terminals welded to the printed wiring board with solder ;
The outer frame is further provided with a stop claw, which extends from near the rear end of the outer frame and presses and holds the rear end surface of the socket body .
On the lower surface of the outer frame, there is formed a recess that is recessed from below to contact the lower surface of the socket body and clamps and fixes the socket body together with the retaining claws.
A connector characterized by that.   2. The connector according to claim 1, wherein the recess has a linear shape extending in a shape in which left and right irregularities are arranged along the front-rear direction at a substantially central portion of the lower surface of the outer frame.   There are at least two terminals for soldering, and each has a portion that can contact the printed wiring board surface in a face-to-face direction from near the left and right bottom edges of the outer frame. The connector according to claim 1, wherein the connector is mounted on a surface-mount type printed wiring board and welded.   There are at least two terminals for soldering, each extending downward from near the left and right bottom edges of the outer frame and inserted into a hole in a printed wiring board of an insertion mounting type and welded. The connector according to claim 1 or 2.   The connector according to claim 1, wherein the retaining pawl extends from near the rear end of the upper surface of the outer frame.

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