JP5786515B2 - Connector and method for assembling the connector - Google Patents

Description

  The present invention relates to a connector for the purpose of ease of assembly and cost reduction in an electronic device such as a portable telephone, a portable music player, and a digital camera, and a method for assembling the connector.

Generally, electric power is supplied to a battery of this type of electronic device via a connector. This connector has a plurality of electrodes and has a plurality of contacts corresponding to each of the electronic device main body side.
A plurality of contacts of such a battery connector are assembled in advance in one housing and configured as one connector (Patent Document 1 and Patent Document 2).

The connector 12 shown in Patent Document 1 and Patent Document 2 will be described with reference to FIGS.
In these 6, the connector 12 is assembled by a plurality of, specifically, three contacts 13 having their holding portions 20 press-fitted into the respective contact holding grooves 19 of the connector housing 23. The connection portions 22 of these contacts 13 are fixed to the respective printed wiring portions 14 of the printed board 10 with solder 15. When the connector 12 is fixed, the main body side housing 11 is fixed on the printed circuit board 10. Then, since the contact portion 18 of the contact 13 protrudes toward the battery storage portion 17 of the main body side housing 11, when the battery 16 is stored in the battery storage portion 17, the electrode of the battery 16 is connected to the contact portion 18 of each contact 13. Connected to.

JP 2005-129374 A JP 2008-218035 A

In the connector 12 shown in Patent Document 1 and Patent Document 2, a plurality of contacts 13 are integrally incorporated in a mold constituting a connector-dedicated housing 23. Therefore, if the positioning protrusions 21 attached to the connector-dedicated housing 23 are inserted into the positioning holes of the printed circuit board 10, all the contacts 13 can be attached to the printed wiring portion 14 relatively accurately.
However, since the contact 13 is incorporated into the connector-dedicated housing 23, a mold that constitutes the connector-dedicated housing 23 is indispensable, and it takes time and cost to manufacture the connector-dedicated housing 23. A process of assembling the contacts 13 in the dedicated housing 23 and a process of manually soldering the connection portions 22 of the respective contacts 13 to the printed wiring portion 14 using the solder 15 are limited. .

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide a connector and a method for assembling the connector for the purpose of ease of assembly and cost reduction.

The connector according to the present invention has a connection piece that connects to a printed circuit board at one end of a contact, and a contact piece that contacts an electronic device at the other end of the contact. They are connected via a thin gap absorbing bending piece formed integrally therewith. However, it does not have a dedicated housing for the connector.
A narrow, oval shift-absorbing bending piece having a cut groove on the outer side and a gap on the inner side is formed on the rear vertical surface of the contact.
Further, the contact piece is bent at a right angle behind the lower end portion of the rear vertical surface of the contact to form a connection piece, and the self-standing piece is formed by bending a right angle forward of the lower end portion of the contact rear vertical surface. The connection piece and the self-supporting piece can be self-supporting.

The method for assembling the connector according to the present invention comprises:
A first step of connecting a connection piece formed at one end of a contact in a connector to a printed circuit board;
A second step of fitting the main body side housing to the connector connected in the first step;
A third step of positioning the body-side housing fitted in the second step by deforming and positioning the narrow displacement absorbing bending piece integrally formed by connecting the contact and the connecting piece;
And a step of fixing the main body side housing positioned in the third step to the printed circuit board.

  In the first step, the contact flat part integrated with the contact is adsorbed and moved to a predetermined position on the printed circuit board, and the contact piece formed by bending right behind the lower end of the rear vertical surface of the contact, and the contact The connector is self-supporting with a self-standing piece formed by bending at a right angle in front of the lower end of the rear vertical surface, and the connection piece is connected to the printed circuit board.

According to the invention of claim 1, in the connector having a connection piece connected to the printed circuit board at one end of the contact, and a contact piece contacting the electronic device at the other end of the contact,
Since the contact and the connecting piece are coupled with each other by interposing a thin deviation absorbing bending piece integrally formed between them, the contact side of the connector is positioned even after the connecting piece is connected to the printed circuit board in advance. It can be adjusted and attached to the correct position, and a narrow and oval deviation absorbing bending piece with a slit on the outside and a gap on the inside is formed on the rear vertical surface of the contact. It can be manufactured by simple press working.

According to invention of Claim 2 ,
A first step of connecting a connection piece formed at one end of a contact in a connector to a printed circuit board;
A second step of fitting the main body side housing to the connector connected in the first step;
A third step of positioning the body-side housing fitted in the second step by deforming and positioning the narrow displacement absorbing bending piece integrally formed by connecting the contact and the connecting piece;
Since the main body housing positioned in the third process is fixed to the printed circuit board, there is no process for assembling the connector-dedicated housing, and the assembly process by the automatic assembly machine can be performed easily and accurately, reducing costs. Can be achieved.

According to the third aspect of the present invention, in the first step, the suction flat portion integrated with the contact is sucked and moved to a predetermined position of the printed circuit board, and folded at a right angle behind the lower end portion of the rear vertical surface of the contact. Because the connection piece is connected to the printed circuit board by making the connector self-supporting with the connection piece formed by bending and the self-standing piece formed by bending at a right angle in front of the lower end of the rear vertical surface of the contact, Connector assembly is accurate and reliable.

1 is a perspective view showing an embodiment of a connector 24 according to the present invention. FIG. It is the perspective view seen from the bottom face of the main body side housing 25 fitted with the connector 24 of FIG. It is the expansion perspective view seen from the bottom face of the main body side housing 25 in FIG. It is sectional drawing which fitted the main body side housing 25 to the connector 24 by this invention. It is sectional drawing of the conventional connector 12. FIG. It is a disassembled perspective view of the conventional connector and the assembly method of this connector.

The present invention provides a connector having a connection piece connected to a printed circuit board at one end of a contact and a contact piece contacting an electronic device at the other end of the contact.
The contact and the connecting piece are connected to each other with a narrow deviation absorbing bending piece integrally formed therebetween.
In this connector, a narrow and oval shift-absorbing bending piece is formed on the vertical surface of the rear part of the contact, with the outer side being a cut groove and the inner side being a gap. In addition, the contact piece is bent at a right angle behind the lower end of the rear vertical surface of the contact to form a connection piece. The connection piece and the self-supporting piece can be used independently.

To connect to a printed circuit board using the connector according to the present invention,
A first step of connecting a connection piece formed at one end of a contact in a connector to a printed circuit board;
A second step of fitting the main body side housing to the connector connected in the first step;
A third step of positioning the body-side housing fitted in the second step by deforming and positioning the narrow displacement absorbing bending piece integrally formed by connecting the contact and the connecting piece;
And a step of fixing the main body side housing positioned in the third step to the printed circuit board.

  In the first step, the contact flat part integrated with the contact is adsorbed and moved to a predetermined position on the printed circuit board, and the contact piece formed by bending right behind the lower end of the rear vertical surface of the contact, and the contact The connector is self-supported with a self-standing piece formed by bending at a right angle in front of the lower end of the rear vertical surface, and the connection piece is connected to the printed board.

A first embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a perspective view of a connector 24 according to the present invention, and a contact 26 of the connector 24 extends substantially horizontally forward from a rear vertical surface 26a composed of a substantially vertical rear surface and an upper end of the rear vertical surface 26a. The suction flat portion 27, a curved elastic piece 28 extending downwardly from the front end of the suction flat portion 27 in a U shape, a contact piece 29 extending laterally U-shaped forward from the curved elastic piece 28, and the rear vertical A connecting piece 30 extending horizontally rearward from the lower end of the surface 26a, left and right free-standing pieces 31 extending substantially horizontally forward from the lower end of the rear vertical surface 26a, and extending forward from both sides of the rear vertical surface 26a. And left and right holding pieces 32.
The connector 24 according to the present invention does not have a dedicated housing and shares a main body side housing 25 described later.

On the rear vertical surface 26a of the contact 26, a deviation absorbing bent piece 33 is formed by punching it into a downward U-shape. The deviation absorbing bending piece 33 has a narrow width with an outer periphery cut into a U-shaped cut groove 34 and a central portion cut into an oval shape, and has one end at the lower end of the rear vertical surface 26a. The other end is continuous to the connection piece 30 and functions as an oval shift absorbing member.
The connection piece 30 is formed in a U shape by forming a notch 36 at the center, thereby preventing rotation during reflow when the connection piece 30 is fixed to the printed wiring portion 14 with the solder 15.
The left and right self-supporting pieces 31 are formed on the same plane as the connection piece 30 so as to be self-supporting when the connector 24 is automatically soldered to the printed circuit board 10. In addition, the self-supporting piece 31 forms a clearance gap 37 in a continuous portion at the lower end portion of the rear vertical surface 26a so as to allow the connection piece 30 to escape when adjusting the displacement.
The suction flat portion 27 is configured to be as flat and wide as possible in order to be sucked by air suction and moved to a predetermined position during automatic soldering.

FIG. 2 shows a main body-side housing 25 for soldering the connector 24 to the printed circuit board 10, adjusting the position by fitting from above, and fixing the connector 24 to the printed circuit board 10 with mounting screws 47 or the like. Shared with 24 housings.
The main body side housing 25 is surrounded by the side wall portion 40 and the rear wall portion 41 so that, for example, the three connectors 24 soldered to the printed board 10 in advance are fitted side by side, and the bottom portion and the front portion are opened. Three contact accommodating recesses 39 are formed, and an L-shaped press-fit groove 44 is formed in a connecting portion between the side wall 40 and the rear wall 41 of the contact accommodating recess 39.

As shown in the enlarged view of FIG. 3, the contact receiving recess 39 and the press-fit groove 44 have tapered portions so that they can be smoothly guided even when there is a slight misalignment when they are fitted to the connector 24. 48 is formed. In addition, the press-fitting groove portion 44 has a wider insertion side groove width to facilitate insertion of the connector 24, and is narrowed inside so as to be securely fixed after insertion.
Fixing portions 42 having screw holes 43 for fixing to the printed circuit board 10 are integrally formed at both ends of the contact accommodating recess 39. A connecting piece relief cutout 45 is formed at the bottom of the rear wall portion 41 between the bottom of the fixing portion 42 and the connecting piece 30 extends. The bottom of the side wall 40 is the bottom of the fixing portion 42. A self-supporting one-side relief notch 46 is formed so that the clearance gap 37 can be accommodated therebetween.

A process of assembling the connector 24 and the main body side housing 25 configured as described above to the printed circuit board 10 will be described.
1st process: The connector 24 is formed in the shape as shown in FIG. 1 by a press punching, a bending process, etc. previously.
Second step: The suction flat surface portion 27 of the connector 24 is sucked by suction of air by an automatic assembly machine and set at the connection position of the printed circuit board 10. At this time, the connector 24 has a connection piece 30 bent rearward placed on a predetermined position of the printed wiring portion 14, and the connection piece 30 and two free-standing pieces 31 bent forward are formed on the same surface. Therefore, it stands up on the printed circuit board 10 in an attached state.

Third step: The connecting piece 30 is fixed to the printed wiring portion 14 with the solder 15 in a state where the plurality of connectors 24 are set at predetermined positions on the printed circuit board 10.
Fourth step: The main body side housing 25 is fitted over the plurality of connectors 24. When the main body housing 25 is fitted, since the tapered portion 48 is formed at the opening end of the contact receiving recess 39 and the press-fit groove 44, the holding piece 32 is placed in the press-fit groove 44, the suction flat portion 27 and the curved elastic portion 27. The piece 28 is smoothly guided to the contact receiving recess 39. When the main body side housing 25 is fitted from above the plurality of connectors 24, the connection piece 30 protrudes from the bottom of the connection piece relief notch 45. Further, the self-supporting piece 31 is positioned under the self-supporting piece escape notch 46.

Fifth step: The main body side housing 25 is fixed to a predetermined position of the printed circuit board 10 by inserting a mounting screw 47 into the screw hole 43. At this time, if it is assumed that a displacement has occurred at the time of attaching the connection pieces 30 to which the plurality of connectors 24 are fixed in advance to the printed circuit board 10, the main body side housing 25 is fixed as it is. There is a possibility that a deviation occurs and the electrode 38 of the battery 16 is not contacted.
Therefore, when the main body side housing 25 is attached to the printed circuit board 10, the main body side housing 25 is twisted while the plurality of connectors 24 are fitted, and position adjustment such as front and rear movement and left and right movement is performed. Even if the connection pieces 30 of the plurality of connectors 24 are fixedly attached to the printed circuit board 10, the displacement absorbing bending piece 33 is formed in a narrow oval shape, so that it is twisted, moved back and forth, and moved left and right. Depending on circumstances, the contact portion excluding the connection piece 30 of the connector 24 is also deformed in the vertical direction and moves following the attachment position of the main body side housing 25. The clearance gap 37 at the lower end of the contact 26 of the connector 24 prevents the contact between the connecting piece 30 and the lower end of the contact 26 due to the movement of the contact, thereby increasing the adjustment width.
The body-side housing 25 whose position has been adjusted so that there is no displacement in the contact piece 29 is fixedly attached to the printed circuit board 10.

  In the above-described embodiment, the battery connector is used. However, the present invention is not limited to this, and the connector can be used for connecting the connector directly to the printed circuit board 10 and connecting to the electronic device.

DESCRIPTION OF SYMBOLS 10 ... Printed circuit board, 11 ... Main body side housing, 12 ... Connector, 13 ... Contact, 14 ... Printed wiring part, 15 ... Solder, 16 ... Battery, 17 ... Battery accommodating part, 18 ... Contact part, 19 ... Contact holding groove, DESCRIPTION OF SYMBOLS 20 ... Holding part, 21 ... Positioning protrusion, 22 ... Connection part, 23 ... Connector housing, 24 ... Connector, 25 ... Main body side housing, 26 ... Contact, 26a ... Rear vertical surface, 27 ... Suction plane part, 28 ... Curved elastic piece 29 ... Contact piece 30 ... Connecting piece 31 ... Self-standing piece 32 ... Holding piece 33 ... Bending piece for absorbing displacement 34 ... Groove groove 35 ... Void, 36 ... Notch portion 37 ... Escape Gap, 38 ... Electrode, 39 ... Contact accommodating recess, 40 ... Side wall portion, 41 ... Rear wall portion, 42 ... Fixing portion, 43 ... Screw hole, 44 ... Press-fit groove portion, 45 ... Connection piece relief notch, 46 ... Self-standing piece Under notch, 47 ... mounting screws, 48 ... tapered portion.

Claims (3)

In a connector having a connection piece that connects to a printed circuit board at one end of the contact, and a contact piece that contacts an electronic device at the other end of the contact,
The contact and the connecting piece are connected to each other with a narrow gap absorbing bending piece formed integrally between them,
A connector characterized in that a narrow and oval deviation absorbing bending piece having a cut groove on the outer side and a gap on the inner side is formed on the rear vertical surface of the contact . A first step of connecting a connection piece formed at one end of a contact in a connector to a printed circuit board;
A second step of fitting the main body side housing to the connector connected in the first step;
A third step of positioning the body-side housing fitted in the second step by deforming and positioning the narrow displacement absorbing bending piece integrally formed by connecting the contact and the connecting piece;
A method for assembling a connector, comprising: a step of fixing the body-side housing positioned in the third step to a printed circuit board. In the first step, the contact flat part integrated with the contact is adsorbed and moved to a predetermined position on the printed circuit board, and the contact piece formed by bending right behind the lower end of the rear vertical surface of the contact, and the contact 3. The connector according to claim 2, wherein the connector is self-supported with a self-standing piece formed by bending at a right angle in front of the lower end portion of the rear vertical surface, and the connecting piece is connected to the printed circuit board. Assembly method.

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