JP2566808Y2 - Surface mount 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 connector used for a communication device and the like, and more particularly, to a surface mount connector which is mounted on a printed circuit board and connected to soldered terminals on both sides of the printed circuit board and plug-in mounted. Related to the structure of the connector.

[0002]

2. Description of the Related Art Conventionally, in this type of connector, the gap between the opposed soldered terminal pieces is smaller than the thickness of the printed circuit board.

FIG. 4 is a perspective view of a conventional connector, FIG. 5 is a cross-sectional view of a conventional connector, and FIG. 6 is a cross-sectional view of a state where a printed circuit board is mounted on the connector.

[0004] The soldering terminal piece 2a of the contact 2 and the soldering terminal piece 3a of the contact 3 are arranged to face the insulator 1, and the soldering terminal piece gap dimension t between the soldering terminal pieces 2a and 3a.
Numeral 3 is smaller than the thickness t2 of the printed circuit board 4. Terminal strip connection pad 4 of printed circuit board 4
a and 4b and the terminal pieces 2a and 3a with solder are connected to a screw 5 and a nut 6 through a screw hole 1a provided in the insulator 1 and a screw hole (not shown) provided in the printed circuit board 4.
Are connected with a certain contact pressure.

[0005]

However, in the above-mentioned conventional surface mount connector, since the gap between the opposed soldered terminal pieces is smaller than the thickness of the printed circuit board, the connector is mounted on the printed circuit board. In case,
The soldered terminal pieces had to be spread out, and there was a risk that the soldered terminal pieces would be deformed during the spreading.
Due to the deformation, the contact pressure between the soldered terminal piece and the terminal connection pad is lost, the soldered terminal piece floats from the terminal connection pad, and the soldered terminal piece shifts due to a shift in the pitch dimension of the soldered terminal piece in the connector longitudinal direction. There is a risk that the misalignment between the pad for single-terminal connection and the pad may occur, resulting in poor connection.

In addition, in order to obtain an appropriate contact pressure between the soldered terminal piece and the terminal connection pad, the distance between the soldered terminal pieces must be strictly controlled, and there are many problems in connector manufacturability. I was

[0007] The present invention has been made in view of the above-mentioned conventional circumstances, and accordingly, an object of the present invention is to provide a novel surface mount connector which can solve the above-mentioned problems inherent in the prior art. To provide.

[0008]

In order to achieve the above object, a surface mount connector according to the present invention has a solder terminal piece gap dimension larger than the thickness of a printed circuit board. And an insulator for pressing the soldering terminal piece on the upper part of the soldering terminal piece to make contact with the terminal connection pad of the printed circuit board and the soldering terminal piece.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of the present invention;

FIG. 1 is a perspective view showing one embodiment of a surface mount connector according to the present invention, FIG. 2 is a cross-sectional view of a printed circuit board and a connector, and FIG. 3 is a cross-sectional view when the printed circuit board is mounted on the connector. .

Referring to FIG. 1 to FIG.
3 has a contact piece 2b, 3b at one end for contacting a contact of a mating connector, and a soldered terminal piece connected to the terminal connection pads 4a, 4b of the printed circuit board 4 by surface mounting soldering at the other end. 2a and 3a. The gap t1 between the soldered terminal pieces 2a and 3a is larger than the thickness t2 of the printed circuit board 4.

By pressing and fixing the insulator 7 for pressurization, the printed circuit board 4 and the insulator 1 with screws 5 and nuts 6,
The step 7 a provided on the pressurizing insulator 7 is a soldered terminal strip 3.
a is pushed down, and the terminal strip 3a with solder is
b and the soldered terminal pieces 2a are pressurized and arranged with a certain contact pressure with the terminal connection pads 4a. The soldering terminal strips 2a, 3a are terminal connection pads 4a, 4b, respectively.
The connection is made electrically and mechanically by manual soldering and by heating the solder paste provided on the terminal connection pads by a reflow furnace or the like.

[0013]

[Effects of the Invention] As described above, according to the present invention,
By setting the gap between the opposed soldered terminal pieces to be larger than the thickness of the printed circuit board, it is possible to mount the surface mounted connector on the printed circuit board without expanding the soldered terminal pieces. , Greatly improves workability.

According to the present invention, since the soldered terminal piece is not deformed, high soldering reliability can be obtained.

Further, according to the present invention, since the amount of pressure applied to the soldered terminal pieces and the pads for connecting the printed circuit board terminals is determined by the size of the pressurizing insulator, there is no need to control the distance between the soldered terminal pieces. The greater the effect, the greater the effect.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a printed circuit board and a connector according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the connector according to the embodiment of the present invention when the printed circuit board is mounted on the connector.

FIG. 4 is a perspective view showing an example of a conventional technique.

FIG. 5 is a sectional view of a printed circuit board and a connector in a conventional example.

FIG. 6 is a cross-sectional view when a printed circuit board in a conventional example is mounted on a connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Insulator 2, 3 ... Contact 2a, 3a ... Solder terminal piece 2b, 3b ... Contact piece 4 ... Printed circuit board 4a, 4b ... Terminal connection pad 5 ... Screw 6 ... Nut 7 ... Pressing insulator 7a ... Step Part t1, t3: Solder terminal piece gap dimension t2: Printed circuit board board thickness

Claims (1)

(57) [Scope of request for utility model registration] A contact having a contact piece fitted at one end with a mating connector and a soldered terminal piece connected to terminal connection pads arranged on both sides of a printed circuit board at the other end is provided as a first insulator. In the connector housed facing each other in pairs, the spacing between the opposed pairs of soldered terminal pieces is made larger than the thickness of the printed circuit board, and the soldered terminal pieces are placed above the soldered terminal pieces in the facing direction. have a second insulator for depressing pressure, the said pair of the second insulator co
Common to all contacts on the part facing one of the contacts
A step is provided, and the second insulator is screwed to the first insulator.
And the screw is rotated to adjust the stepped portion.
When adjusting the pressing force to press the one contact
Both of the soldered terminal pieces correspond to the corresponding terminal connection pads.
A surface mount connector characterized by being brought into contact with a pad.