CN2371683Y - Terminal for electric connector - Google Patents

Abstract

The utility model relates to a terminal for an electric connector, a connecting part is arranged at the front end of the terminal, a connecting pin part is arranged at the tail end of the terminal, and the connecting pin part is inserted in a connecting hole of a printed circuit board. The utility model is characterized in that the inserting pin is bended and forms a bending part, when the utility model is inserted in the connecting hole, the bending part is positioned in the connecting hole, and the bending part is of a right angle bending shape or an arc-shaped bending shape. The utility model has easy manufacture, can reduce the clearance between the connecting foot part and the connecting hole, can increase the contact area between the connecting pin and soldering tin, has good function of adsorbing the soldering tin, and ensures a good electric connection.

Description

Connector terminals

The utility model relates to a kind of electric connector, particularly a kind of connector terminals that is connected with circuit board.

The pin that electric connector is connected with circuit board is the pin portion and the location plug-in unit (board lock) of connector terminals lower end.

See also Fig. 1, it is the schematic diagram of known connector terminals and the scolding tin contact condition on the circuit board, terminal 11 front ends are provided with connecting portion (figure does not show), tail end is a pin portion 112, electric connector passes the connecting hole 121 of circuit board 12 with the pin portion 112 of terminal, be stained with scolding tin 13 and form electrical connection through the tin stove,, form certain electrical connection so scolding tin 13 can be full of connecting hole 121 because the scolding tin in the tin stove is a lot of.

For improving working (machining) efficiency, the dealer also adopts soft heat (reflow) operating type at present, see also Fig. 2,3, connecting hole 121 places in circuit board, stamp a circle paste scolding tin 13 earlier, when circuit board during through 245 ℃ ambient temperature, paste scolding tin 13 promptly dissolves, and be connected with terminal 11 pin portions 112, but this kind operating type can be because pin portion 112 be too big and form the bad connection phenomenon with connecting hole 121 gaps, because the sheet metal thickness a of terminal only is 0.2 to 0.25mm, and the aperture of connecting hole is about 0.8mm, and gap between the two is very big, easily produces the bad connection phenomenon.

For addressing the above problem, see also Fig. 5, the dealer is with pin portion 112 bendings of terminal, make long and the wide 0.6mm that all is about, pin portion still can insert in the connecting hole of 0.8mm like this, and because of having increased the contact area with scolding tin 13, and the gap between the connecting hole also reduces a lot of, so connection is gone up better naturally, but has increased the trouble in the terminal manufacturing relatively.

The purpose of this utility model is to provide a kind of connector terminals that is easy to adsorb scolding tin, forms bending by pin with the pin length direction, make and the connecting hole of circuit board between the gap reduce, make terminal have the effect of preferable absorption scolding tin.

For the utility model that achieves the above object is taked following measure:

Connector terminals of the present utility model, its front end is provided with connecting portion, and tail end is provided with pin portion, and pin portion inserts the connecting hole of printed circuit board (PCB), to reach and being electrically connected of printed circuit board (PCB);

It is characterized in that pin portion is bent to form bend, when inserting connecting hole, crooked position is in connecting hole.

Described connector terminals is characterized in that, the rectangular bending of described bend.

Described connector terminals is characterized in that, the described bend shape that is convexly curved.

Because the pin and the connecting hole gap of connector of the present utility model reduce,, can obtain certain electrical connection effect so be connected with terminal easily during the melts soldering tin of connecting hole periphery.

Conjunction with figs. and preferred embodiment are described in detail as follows:

The accompanying drawing simple declaration:

Fig. 1: the schematic rear view of the connection status of first kind of known connector terminals.

Fig. 2: first kind of known connector terminals inserted the top view of the circuit board that is printed on paste scolding tin.

Fig. 3: first kind of known connector terminals inserted the rearview of the circuit board that is printed on paste scolding tin.

Fig. 4: first kind of known connector terminals insertion is printed on the schematic diagram of the circuit board of paste scolding tin through bonding state behind the high temperature.

Fig. 5: second kind of known connector terminals inserted the top view of the circuit board that is printed on paste scolding tin.

Fig. 6: the end view of the utility model electric connector terminal embodiment.

Fig. 7: the rearview of the utility model electric connector terminal embodiment.

Fig. 8: the utility model connector terminals embodiment insertion is printed on the circuit board of paste scolding tin through looking schematic diagram on the bonding state behind the high temperature.

The schematic rear view of Fig. 9: Fig. 8.

Figure 10: the utility model second embodiment inserts the rearview of circuit board.

Figure 11: the front view of the utility model the 3rd embodiment.

See also Fig. 6,7, the front end of the terminal 2 of present embodiment is provided with connecting portion 21 as being electrically connected the position, and tail end is provided with pin portion 22, inserts the connecting hole of printed circuit board (PCB), connects with molten tin again; Wherein, the pin portion 22 of terminal is bent to form bend 221, and bend 221 is bending at right angles.

See also Fig. 8,9, when the pin of above-mentioned terminal 2 inserts the connecting hole 121 of circuit board 12, bend 221 is positioned at connecting hole 121, with the contact area of increase with scolding tin, reduce the gap with connecting hole 121, so the time, be easy to be connected when being imprinted on scolding tin 13 fusings of connecting hole periphery with bend 221 through 245 ℃ of ambient temperatures, can make the pin portion of terminal that the effect of preferable absorption scolding tin is arranged like this, guarantee to be electrically connected with circuit board.

See also Figure 10, it is second embodiment of the present utility model, 321 one-tenth bowings of bend that the pin portion of terminal 3 32 is set.

See also Figure 11, it is the 3rd embodiment of the present utility model, location plug-in unit 4 for electric connector, it is bent to form a bend 411 with pin 41 pin length equally, not only pin both sides 412 and jack driving fit when so inserting jack, and fore-and-aft direction also reduces with the connecting hole gap by bend 411 increases areas, and so molten tin also has splendid adsorption effect tin effect when connecting.

Compared with prior art, the utlity model has following effect:

By above explanation as can be known the pin portion of bonder terminal of the present utility model form a bend by bending, make easy, and reduce greatly by the gap of this bend and connecting hole, and can increase contact area between pin and scolding tin, reach the effect of preferable absorption scolding tin.

The above only is preferred embodiment of the present utility model, and various variations and modification that person skilled in the art scholar does according to the utility model should be included in the protection range of the present utility model.

Claims (3)

1, a kind of connector terminals, its front end is provided with connecting portion, and tail end is provided with pin portion, and pin portion inserts the connecting hole of printed circuit board (PCB), to reach and being electrically connected of printed circuit board (PCB);

It is characterized in that pin portion is bent to form bend, when inserting connecting hole, crooked position is in connecting hole.

2, connector terminals according to claim 1 is characterized in that, the rectangular bending of described bend.

3, connector terminals according to claim 1 is characterized in that, the described bend shape that is convexly curved.

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