JPH1050425A - Connector mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector mounting method, wherein a connector for conducting electrical connection with the exterior can be mounted on an end part of a printed circuit board with its center of gravity well balanced and furthermore can be made compact. SOLUTION: A cut-out part 17 being formed leaving two wing parts 18 on an end part of a printed circuit board 16, further protruding parts 14 being protrusively provided on opposite side parts of a connector 11, this connector 11 is inserted into the cut-out part 17, and the protruding parts 14 are laid on the two wing parts 18 respectively. Balance for the center of gravity of the connector 11 becomes stable with the connector 11 mounted on the printed circuit board 16. Further, leads 13 are free from separation from terminals 20 due to a wrench given to the connector 11, and furthermore the whole structure can be made thinner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounting method for mounting a connector for making an electrical connection to the outside at an end of a printed circuit board.

[0002]

2. Description of the Related Art Various types of electronic components are mounted on a printed circuit board incorporated in various electronic devices. Of the electronic components, a connector for making an electrical connection to the outside is provided.
Due to its nature, it is generally mounted on the edge of a printed circuit board.
Hereinafter, a method for mounting a conventional connector will be described.

FIG. 12 is a side view showing a mounting structure of a conventional connector. In the connector 1, a lead 3 extends forward from a front surface of a connector main body 2 made of a synthetic resin molded body. A circuit pattern is formed on the upper surface of the printed circuit board 4, and the connector 1 is mounted on the printed circuit board 4 with the lead 3 grounded to a terminal at the end of the circuit pattern. In this case, as shown in the figure, the connector 1 is often mounted with its rear portion protruding from the printed circuit board 4. The printed circuit board 4 on which the connector 1 is mounted is sent to a heating furnace of a reflow device, and the leads 3 and terminals are soldered.

[0004]

However, in the above-described conventional connector mounting structure, the connector 1 is mounted with its rear portion protruding from the printed circuit board 4, so that the mounting state is unstable. By then,
There has been a problem that the connector 3 is displaced and the lead 3 falls off from the terminal of the circuit pattern, or falls easily from the printed board 4 as indicated by an arrow N1.

In addition, it is difficult to reduce the size and size of the connector 1 because the overall thickness W is large, and the center of the connector 1 in the thickness direction and the center of the printed circuit board 4 in the thickness direction are shifted by a distance D. An arrow N is applied to the connector 1 due to a force F when the connector pins are inserted from behind the connector 1.
There is a problem that a rotational moment in two directions, that is, a direction in which the connector 1 is kneaded is applied, and the lead 3 is easily separated from the terminal.

Accordingly, an object of the present invention is to provide a connector mounting method capable of solving the above-mentioned conventional problems.

[0007]

According to a method of mounting a connector of the present invention, a connector is inserted into a notch formed by leaving both wings at an end of a printed circuit board, and protrusions provided on both sides of the connector. And a plurality of leads extending from the front surface of the connector are mounted on electrodes of a circuit pattern formed along the edge of the notch, and the leads are fixed to the electrodes. It is.

With this configuration, the connector can be mounted on the printed circuit board with good balance of the center of gravity.

[0009]

According to a first aspect of the present invention, there is provided a method for mounting a connector, wherein the connector is inserted into a notch formed by leaving both wings at an end of a printed circuit board, and the connector is projected from both sides of the connector. And the plurality of leads extending from the front surface of the connector are placed on the electrodes of the circuit pattern formed along the edges of the notches, and the leads are fixed to the electrodes. It was done.

With this configuration, the connector can be mounted on the printed circuit board with a good balance of the center of gravity.

According to a second aspect of the present invention, in addition to the first aspect, after the lead is fixed to the electrode, the two wings are separated from the printed circuit board. is there.

With this configuration, the connector can be made to protrude from the end of the printed circuit board, and a mounting structure suitable for a card module such as a memory card or a card computer can be obtained.

(Embodiment 1) FIG. 1 is a perspective view of a connector according to Embodiment 1 of the present invention before a printed circuit board is mounted thereon, and FIG.
Is a perspective view after mounting. The connector 11 comprises a connector main body 12 made of a synthetic resin molded body, and a number of leads 13 extending forward from the front surface thereof, and tongue-like projections 14 are provided on both sides of the connector main body 12. It is protruding. Reference numeral 15 denotes an opening formed on the back surface of the connector main body 12, through which an external connector pin is inserted.

A notch 17 is formed at the rear end of the printed circuit board 16.
Are formed, and the wing portions 18 remain on both sides. A circuit pattern 19 is formed on the upper surface of the printed board 16, and terminals 20 are provided along the edge of the cutout 17.

The connector 11 is inserted into the cutout 17 in the direction of the arrow, and the projection 14 is mounted on the wings 18 so as to be mounted on the printed circuit board 16 (see FIG. 2). FIG. 3 is a side view showing a state in which the connector according to the first embodiment of the present invention is mounted on a printed circuit board, and FIGS. 4 and 5 are sectional views of the same.

In the mounted state, the rear portion of the connector 11 does not protrude from the printed circuit board 16, and the center of gravity G of the connector 11 is closer to the lead 13 than the protrusion 14. Since the rotational moment due to its own weight acts in the direction in which the mounted lead 13 is pressed against the terminal 20, the lead 13 is connected to the terminal 2.
It can be mounted with a good balance of center of gravity by firmly touching the ground to zero.
Further, the overall thickness W can be reduced, and the center of the connector 11 in the thickness direction of the printed circuit board 16 substantially coincides with the printed wiring board 16. I never leave 20.

The printed circuit board 16 on which the connector 11 is mounted is sent to the heating furnace of the reflow device, and the leads 13 are fixed by soldering to the terminals 20, but the mounting state of the connector 11 is stable. And especially connectors 11
(See FIG. 5), the position of the connector 13 in the lateral direction (the width direction of the lead 13) is regulated by the contact of both side surfaces of the connector body 12 with the inner surfaces of the wing portions 18 (see FIG. 5). The lead 13 is connected to the terminal 2 without falling off.
It can be fixed while securely grounding to zero.

(Embodiment 2) FIG. 6 is a perspective view of a connector according to Embodiment 2 of the present invention, and FIG. 7 is a side view of the connector mounted on a printed circuit board. Embodiment 2
Is different from the first embodiment in that it is a pin. In this case, the same operation and effect as in the first embodiment can be obtained, for example, the rotation moment due to the own weight of the connector 11 acts in the direction of the arrow N3.

(Embodiment 3) FIG. 8 is a partial cross-sectional view of a connector according to Embodiment 3 of the present invention, in which a protruding portion is mounted on a wing. A concave portion 21 is formed on the upper surface of the wing portion 18, and the projecting portion 14 a is fitted into the concave portion 21 to prevent the connector 11 from being displaced.

(Embodiment 4) FIG. 9 is a perspective view of a connector according to Embodiment 4 of the present invention before a printed circuit board is mounted. The printed circuit board 16 also has terminals 2 on its both wings 18.
0 and a circuit pattern 19 are formed. A lead 13 is also provided on the side wall of the connector body 12. Of course, the lead 13 is also provided on the front surface of the connector main body 12. The connector 11 is inserted into the notch 17 and the two wings 1
The lead 13 on the side wall is mounted on the terminal 20 of No. 8. That is, in the fourth embodiment, the reed 13 is
In this configuration, the total number of the leads 13 and the terminals 20 can be increased.

(Embodiment 5) FIG. 10 is a perspective view of a connector according to a fifth embodiment of the present invention before a printed circuit board is mounted thereon, and FIG. 11 is a side view of the connector mounted on the printed circuit board. This is made up of both wings 18 and printed circuit board 16.
A V-groove 22 as a separating means is formed at the joint of (1). A plate-like projection 23 is provided on the side wall of the connector body 12.

The connector 11 is inserted into the cutout 17, and the projection 23 is placed on the wings 18. Then, the printed circuit board 1
6 is sent to the heating furnace of the reflow device, and the lead 13 is fixed to the terminal 20 by soldering. When the soldering is completed, the both wings 18 are cut off from the V-shaped groove 22 and separated and removed as shown by a chain line in FIG. According to the fifth embodiment, a structure in which the connector main body 12 protrudes from the end of the printed circuit board 16 is possible, and for example, a mounting structure suitable for a card module such as a memory card or a card computer can be obtained. The separating means for separating and removing the wing portions 18 from the printed circuit board 16 is not limited to the fifth embodiment. For example, a perforation may be formed instead of the V groove 22. As is clear from the above embodiments, the present invention allows various design changes.

[0023]

As described above, according to the connector mounting method of the present invention, the balance of the center of gravity of the connector is stabilized in a state where the connector is mounted on the printed circuit board, and the connector falls from the printed circuit board or the lead of the connector can be obtained. Is not separated from the terminal of the circuit pattern, and by aligning the connector and the center of the thickness of the printed circuit board as much as possible, when inserting the pin of the external connector into the connector, the connector is kneaded and the lead separates from the terminal Without this, many excellent effects are obtained, such as the overall thickness can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector according to a first embodiment of the present invention before a printed circuit board is mounted.

FIG. 2 is a perspective view after mounting the connector and the printed circuit board according to the first embodiment of the present invention;

FIG. 3 is a side view showing a state where the connector according to the first embodiment of the present invention is mounted on a printed circuit board;

FIG. 4 is a sectional view showing a state where the connector according to the first embodiment of the present invention is mounted on a printed circuit board;

FIG. 5 is a sectional view showing a state where the connector according to the first embodiment of the present invention is mounted on a printed circuit board;

FIG. 6 is a perspective view of a connector according to a second embodiment of the present invention.

FIG. 7 is a side view showing a state where the connector according to the second embodiment of the present invention is mounted on a printed circuit board;

FIG. 8 is a partial cross-sectional view showing a state where the protrusion of the connector according to the third embodiment of the present invention is mounted on a wing.

FIG. 9 is a perspective view of a connector and a printed circuit board according to a fourth embodiment of the present invention before being mounted.

FIG. 10 is a perspective view of a connector according to a fifth embodiment of the present invention before a printed circuit board is mounted.

FIG. 11 is a side view showing a state in which the connector according to the fifth embodiment of the present invention is mounted on a printed circuit board.

FIG. 12 is a side view showing a mounting structure of a conventional connector.

[Description of Signs] 11 Connector 12 Connector Body 13 Lead 14, 14a, 23 Projection 16 Printed Circuit Board 17 Notch 18 Wing

Claims (2)

[Claims] 1. A connector is inserted into a notch formed by leaving both wings at an end of a printed circuit board, and projections protruding from both sides of the connector are mounted on the two wings, and a front surface of the connector is provided. A method of mounting a connector, comprising: mounting a plurality of extending leads on an electrode of a circuit pattern formed along an edge of the notch; and fixing the leads to the electrodes. 2. The method for mounting a connector according to claim 1, wherein said wing portions are separated from a printed circuit board after said lead is fixed to said electrode.