JP2845118B2 - Connector mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector mounting structure 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 Conventionally, various types of electronic components are mounted on printed circuit boards incorporated in various electronic devices.
Of the electronic components, a connector for making an electrical connection to the outside is generally mounted on an end of a printed circuit board due to its characteristics. Hereinafter, a mounting structure of 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 to which the connector 1 is mounted is fed to the heating furnace riffs <br/> row device by a conveyor, conveying the heating furnace in the conveyor
While the lead 3 is soldered to the terminal.

[0004]

However, in the conventional connector mounting structure described above, the connector 1 is mounted with its rear portion protruding from the printed circuit board 4, so that the mounting state is unstable, and the connector 1 is soldered while being conveyed by a conveyor. Is completed , the connector 1 is displaced and the lead 3 falls off the terminal of the circuit pattern, or the arrow N1
As shown in the figure, there is a problem that the printed circuit board 4 is easily dropped.

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 is applied in two directions, that is, a direction in which the connector 1 is kneaded, and the lead 3 is easily separated from the terminal.

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

[0007]

Means for Solving the Problems] The present invention To this end, co
Connector terminals to printed circuit board circuit pattern terminals.
Connector for heating and soldering in the heating furnace of the flow device
This is a mounting structure for a connector, in which notches are formed at both ends of the printed circuit board, leaving both wings, and a connector in the thickness direction of the connector.
Projecting parts on both sides of the connector body above the center of the connector body, and from the front of the connector body to the front.
Projecting the lead extending, inserting the connector body into the notch, with mounting the protrusion wings portion, the lead
To the terminal of the circuit pattern formed at the edge of the notch
It is designed to be exposed to the outside and mounted .

[0008]

[Action] Oite to the above configuration, the connector to the printed circuit board
Mounted and sent to the heating furnace of the reflow device by the conveyor
The soldering is performed while transporting the inside of this heating furnace by a conveyor.
However, in this case, the protrusion is in the thickness direction of the connector.
Since it is projected above the center, the connector is
A stable mounting state can be maintained. Also pudding connector
The leads and terminals are exposed to the outside while mounted on the
To heat the area near the lead sufficiently and quickly.
Can be securely grounded to the terminal and soldered.

[0009]

【Example】

(Embodiment 1) Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a connector and a printed circuit board according to a first embodiment of the present invention before mounting, and FIG. 2 is a perspective view after the 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.
Are provided on both sides of the tongue. 1
Reference numeral 5 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). 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, FIG. 4 is a sectional view of the same side, and FIG. 5 is a sectional view of the same front.

In the mounted state, the rear portion of the connector 11 does not protrude from the printed circuit board 16 and the protrusion 14
Above the center NA in the thickness direction of the connector 11
Projecting on both sides of the connector body 12
The center of gravity G of the connector 11 is the upper surface a of the printed circuit board 16
Lower position to maintain a stable mounting state
You. Further, the center of gravity G of the connector 11 is closer to the lead 13 than the protruding portion 14, and a rotational moment due to its own weight acts on the connector 11 in the direction of arrow N 3, that is, in the direction of pressing the lead 13 against the terminal 20.
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 and the terminals 20 are soldered . in this case,
The center of gravity G of the connector 11 is higher than the upper surface of the printed circuit board 16.
Because it is in the low position, the mounting condition is stable and
The rotational moment due to the weight of the
That is, it acts in the direction of pressing the lead 13 against the terminal 20.
The printed circuit board 1 on which the connector 11 is mounted.
6 to the heating furnace of the reflow device by the conveyor, and
Perform soldering while transporting inside the heating furnace by conveyor
The lead 13 does not fall off from the terminal 20 during the
Lead 13 can be securely grounded to terminal 20 and soldered.
You. In this case, the lead 13 is located in front of the connector body 12.
Since it extends forward from the surface and is exposed to the outside, the lead
13 is heated quickly and sufficiently in the heating furnace to ensure
Soldered. In addition, the displacement of the connector 11 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 can be soldered without falling off from the terminal 20 with the lead 13 securely grounded to the terminal 20.

Embodiment 2 FIG. 6 is a perspective view of a connector according to a second embodiment of the present invention, and FIG. 7 is a side view of the connector mounted on a printed circuit board. The projecting portion 14a of the second embodiment differs from the first embodiment in that it is a pin. In the connector of the second embodiment, the same operation and effect as in the first embodiment can be obtained, for example, the rotational moment due to the 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 a third embodiment of the present invention, in which a projection 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 a fourth embodiment of the present invention before a printed circuit board is mounted. Terminals 20 and circuit patterns 19 are also formed on both wing portions 18 of the printed circuit board 16. The connector body 12
The lead 13 is also provided on the side wall of the. 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 terminals 2 of the both wings 18 are inserted.
The lead 13 on the side wall is placed on the reference numeral 0. That is, in the fourth embodiment, the reed 13 also serves as a protruding portion to be mounted on the wing portions 18.
The total number of leads 13 and terminals 20 can be increased.

(Embodiment 5) FIG. 10 is a perspective view of a connector and a printed circuit board according to a fifth embodiment of the present invention before being mounted, and FIG. 11 is a side view of the connector mounted on a printed circuit board. In this device, a V-groove 22 is formed as a separating means at the joint between the wing portions 18 and the printed board 16. A plate-like projection 23 is provided on the side wall of the connector body 12.
Is protruding.

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 soldered to the terminal 20. When the soldering is completed, the both wings 18 are connected to the V-grooves 22 as shown by the chain line in FIG.
To be separated and removed. 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. Note that the both wings 18 are connected to the printed circuit board 1.
The separating means for separating and removing from the groove 6 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.

[0019]

As described above, according to the mounting structure of the connector of the present invention, when the connector is mounted on the printed circuit board , the protruding portion is more than the center in the thickness direction of the connector.
The connector's center of gravity is above the printed circuit board
Is in the low position, so the printed
When transporting the board on a conveyor for soldering,
Can maintain a stable mounting state. The lead is connected
Since it extends forward from the main body and is exposed to the outside,
In the heating furnace, heat the vicinity of the lead quickly and sufficiently.
To ensure that all leads are soldered to the terminals.
Wear. In addition, the center of the connector and the printed circuit board in the thickness direction can be matched as much as possible, so that when inserting the pins of the external connector into the connector, the connector is not kneaded and the lead does not separate from the terminal, and furthermore, the whole And many other excellent effects can be obtained.

[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 of the connector according to the first embodiment of the present invention after a printed circuit board is mounted.

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.

FIG. 4 is a side 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 front sectional view showing a state in which 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 in which the connector according to the second embodiment of the present invention is mounted on a printed circuit board.

FIG. 8 is a cross-sectional view showing a state where a protrusion of a connector according to a 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.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Connector 12 Connector main body 13 Lead 14, 14a, 23 Projection part 16 Printed circuit board 17 Notch part 18 Wing part

Claims (1)

(57) [Claims] A terminal of a connector is connected to a circuit pattern of a printed circuit board.
Soldering to the terminals of the solder in the heating furnace of the reflow device
A notch portion at both ends of the printed circuit board, and a connector body above the center in the thickness direction of the connector.
And projecting parts on both sides of the connector body.
Projecting a lead extending from the front to the front , this connector
A main body is inserted into the notch, the protrusion is placed on the wings , and the lead is formed at an edge of the notch.
A mounting structure for a connector, wherein the mounting structure is such that it is mounted on a terminal of a circuit pattern exposed to the outside .