JP3090244B2 - Contact type 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 contact type connector which can be used, for example, for connection between a portable device and a charger.

[0002]

2. Description of the Related Art In a portable device such as a portable telephone, for example, a charging terminal is provided so as to be exposed on a case, and charging is performed by bringing the charging terminal into contact with a contact type connector provided in the charger. A connection structure is adopted. By adopting this connection structure, the connection to the charged state is completed only by mounting the portable device at a predetermined position of the charger, so that the handling is simple and convenient. The present invention proposes a structure of a contact type connector provided on the charger side when such a connection structure is employed.

FIG. 8 shows a structure of a conventional contact type connector. In the figure, reference numeral 10 denotes a printed circuit board. For example, electric components constituting a charger are mounted on the printed circuit board 10 to constitute a charger. The contact type connector 20 is attached to an end of the printed circuit board 10. The conventional contact type connector 20 includes an insulating body 21, a conductive terminal 22 embedded in the insulating body 21, a contact surface 23 provided on the conductive terminal 22, and a tapered hole 24 exposing the contact surface 23. You.

[0004] The portable device 100
Is provided with a contact pin 102 elastically protruded and biased by a spring 101, and the contact pin 102 is brought into contact with the contact surface 23 of the contact type connector 20 to establish a connection between the charger and the portable device 100. Do.

[0005]

In the conventional contact type connector 20, the conductive terminal 22 is bent into an L-shape and its end is inserted into a hole formed in the printed circuit board 10, and in this state, an automatic soldering device is used. The conductive terminals 22 are soldered to the printed circuit board 10 by passing over the solder bath, and the insulating body 21 is fixed. When the printed circuit board 10 is moved over the solder tank by an automatic soldering apparatus to perform soldering, the flux (additive contained in the solder) generated from the molten solder in the solder tank is scattered and the outer surface 25 of the insulating body 21 is scattered. This causes inconveniences such as deterioration of appearance and adhesion to the contact surface 23, which may cause a poor contact accident.

Further, since the insulating body 21 and the printed circuit board 10 are integrated, when the printed circuit board 10 is mounted and fixed on a chassis (not shown) of a device such as a charging device, the outer surface 25 of the insulating body 21 is not fixed. It is difficult to attach the outer surface of the case 26 flush with the outer surface. In particular, assuming that the insulating body 21 is attached while being retracted from the outer surface of the case 26, the contact pin 1 on the portable device 100 side
02 may not reach the contact surface 23 and may be assembled in a state where contact is impossible. In addition, since the contact pressure given from the portable device 100 is transmitted to the connection portion of the printed circuit board 10 through the conductive terminal 22, an accident such as the removal of the conductive pattern at the connection portion between the conductive terminal 22 and the printed circuit board 10 occurs. Inconvenience occurs.

For this reason, as shown in FIG.
Lead wire 2 between conductive terminal 22 and printed circuit board 10
7 may be connected. However, there is an inconvenience that an automatic soldering device cannot be used to directly solder the lead wire 27 to the printed circuit board 10. That is, since the insulating body 21 moves freely by the lead wire 27, it is dangerous to pass the insulating body 21 over the solder bath in that state. Therefore, the lead wire 27 must be manually soldered after other components are soldered by an automatic soldering apparatus, so that there is a disadvantage that workability is deteriorated.

In order to solve this inconvenience, a connector is further inserted between the lead wire 27 and the printed circuit board 10, and for example, a socket portion of the connector is soldered to the printed circuit board 10 by an automatic soldering device, and the socket portion is attached to the socket portion. Lead wire 27
The structure may be such that the plug portion connected to the connector is inserted and connected. However, an extra connector for connecting the lead wire 27 to the printed circuit board 10 is required, resulting in a disadvantage that the cost is increased.

[0009]

The present invention is characterized in that it has a two-piece structure of an external connector directly attached to a case and an internal connector attached to a printed circuit board side. The external connector is configured by arranging a contact surface of a conductive terminal on the front side of the insulated terminal plate and projecting a conductive pin portion on the back side of the insulated terminal plate.

The internal connector includes a bifurcated contact that comes into contact with a conductive pin portion protruding from the external connector, and a terminal for attachment to a printed circuit board formed to protrude from the bifurcated contact.

[0011]

According to the connector of the two-piece structure of the present invention, if the external connector is mounted on the case side and the internal connector is mounted on the printed circuit board side, the conductive pins protruding from the back side of the external connector can be connected to the internal connector. , The external connector and the internal connector can be connected. Since the internal connector has no portion exposed to the outside of the case, soldering to the printed circuit board can use an automatic soldering device. Further, since the external connector is directly mounted on the case in advance, the mounting position can be accurately defined. Therefore, an accident that the contact surface of the portable device cannot be contacted due to the position of the contact surface being too deep does not occur. Further, even if the mounting position of the printed board slightly changes due to the processing accuracy of the chassis or the like, the change in this position can be absorbed by the allowable width of the contact position between the external connector and the internal connector. Therefore, the printed circuit board can be mounted irrespective of the position of the contact surface, and an effect that assembly can be easily performed can be obtained.

[0012]

FIG. 1 shows an embodiment of the present invention. 10 in the figure
Denotes a printed board, 30 denotes an external connector, and 40 denotes an internal connector attached to the printed board 10. External connector 3
0 denotes a tapered hole 32 on the surface side of the flat insulating plate 31.
Is formed, and the conductive terminal 33 is press-fitted into the hole 32 to be supported. The conductive terminal 33 includes a contact surface 33 </ b> A exposed to the hole 32 and a conductive pin portion 33 </ b> B protruding from the back side of the insulating plate 31.
In this example, the conductive terminal 33 is formed of a flange portion 3 for forming the contact surface 33A by cutting a copper round bar, for example.
3C and the case where the conductive pin portion 33B is formed.

As shown in FIG. 2, for example, seven holes 32 are formed in the insulating plate 31, and each of the holes 32 supports a conductive terminal 33. A protruding piece 34 is formed on the peripheral edge of the insulating plate 31, and this protruding piece 34 is connected to the case 11 indicated by a dotted line.
It is attached to 1. A protruding guide 35 is formed on the lead-out surface side of the conductive pin portion 33B in the insertion / removal direction of the internal connector 40 with the conductive pin portion 33B interposed therebetween, as shown in FIG. The notch 43 is engaged to guide the insertion of the internal connector 40,
The final position of insertion of the internal connector 40 is defined.

In this example, the internal connector 40 is formed by stamping a conductive plate into a fork as shown in FIG. 4 to form a bifurcated contact 41. The bifurcated contact 41 is formed into a flat insulating plate 42 shown in FIG. And a plurality of cut portions 43 formed in the above. For this purpose, a concave groove 44 is formed on both sides of the cut portion 43 of the insulating plate 42, and this concave groove 44 is formed.
The bifurcated contact 41 is housed. On the opposite side of the extension direction of the forked contact 41, a terminal 41A for attachment to a printed circuit board is formed so as to protrude, and the terminal for attachment 41A is arranged so as to protrude from a side of the insulating plate 42. Incidentally, reference numeral 42A shown in FIG. 5 denotes a projection formed integrally with the insulating plate 42.
The mounting terminals 41A are inserted into mounting holes formed in the printed circuit board 10 by inserting the projections 42A into the mounting holes formed in the printed circuit board 10, and the mounting terminals 41A are connected to the respective circuits of the printed circuit board 10 by an automatic soldering apparatus in a state where the internal connectors 40 are self-standing on the printed circuit board 10. The internal connector 40 is attached to the printed circuit board 10 by soldering to the pattern.

In the above-described embodiment, an example is shown in which the conductive pin 33 used for the external connector 30 is formed by cutting. However, for example, as shown in FIGS. And one formed by bending. With the structure shown in FIG. 6, the effect of reducing material costs can be obtained. Also, the contact 41 for the internal connector is not limited to a structure in which a conductive plate is punched in a fork shape, and may be configured by, for example, bending a plate spring into a forked shape as shown in FIGS. 7A and 7B.

[0016]

As described above, according to the present invention, the external connector 30 and the internal connector 40 have a two-piece structure, one external connector 30 is attached to the case 11 side, and the other connector, that is, the internal connector 40 is connected. The printed circuit board 10 can be electrically connected to the contact surface 33A provided on the case 11 only by attaching the external connector 30 and the internal connector 40 to the printed circuit board 10 side. The bifurcated contact 41 that contacts the conductive pin portion 33B during this connection,
As shown in FIG. 1, the coupling position between the external connector 30 and the internal connector 40 can be shifted by the distance L. This distance L indicates the allowable width in which the external connector 30 and the internal connector 40 can be connected. By having the allowable width L, even if the position of the printed circuit board 10 slightly deviates from the normal position, if the amount of the deviation is within the allowable width L, the positional deviation is absorbed and the printed circuit board 10 is externally moved. It can be connected to the connector 30.

According to the contact type connector of the present invention, an automatic soldering apparatus can be used when the internal connector 40 is mounted on the printed circuit board 10. Therefore, manufacturing can be easily performed. In addition, since the external connector 30 is detached during automatic soldering, there is no possibility that the external appearance will be stained by the automatic soldering process. Further, according to the present invention, since the external connector 30 is attached to the case 11, the force received from the portable device is received by the case 11.
Therefore, no external force is applied to the mounting terminal 41A of the internal connector 40. As a result, the internal connector 40
The circuit pattern portion to which the mounting terminal 41A is soldered does not peel off and becomes defective, and in this regard, the reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention.

FIG. 2 is an exemplary front view for explaining the structure of the external connector shown in FIG. 1;

FIG. 3 is a rear view of FIG. 2;

FIG. 4 is a plan view showing an example of a forked contact used in the internal connector shown in FIG. 1;

FIG. 5 is a partially cutaway plan view for explaining an example of the structure of the internal connector shown in FIG. 1;

FIG. 6 is a perspective view showing another example of the conductive terminal used for the external contact shown in FIG. 1;

FIG. 7 is a plan view showing another embodiment of the forked contact used for the internal contact shown in FIG. 1;

FIG. 8 is a cross-sectional view for explaining a conventional technique.

FIG. 9 is a sectional view showing another example of the conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Printed circuit board 11 Case 30 External connector 31 Insulating plate 32 Hole 33 Conductive terminal 33A Contact surface 33B Conductive pin part 34 Protrusion piece 35 Protrusion guide 40 Internal connector 41 Forked contact 41A Mounting terminal 42 Insulating plate 43 Cut part 44 Groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 13/04 H01R 13/11 H01R 12/22

Claims (4)

(57) [Claims] (1) A case is inserted into the case at a substantially right angle to the one plate portion.
The lint board is held and the case and printed circuit board
A contact type connector that can be attached ,
A flat insulated terminal that is attached to the plate part in parallel with it.
The plate has a contact surface on one side and the contact surface on the other side.
Electrically integrated conductive pins protrude into the case
External connector and a bifurcated contact.
The fork of the tact faces the insulating terminal plate and the conductive pin
Part is inserted into the bifurcated part as described above,
Extends from the contact and mounts on the printed circuit board
And an internal connector having terminals for the contact type. 2. A contact type connector according to claim 1, wherein said contact surface is arranged at a position slightly depressed relative to a surface of said insulated terminal plate so as to ensure contact with a mating contact. Type connector. Wherein the internal connector according to claim 1 or 2 wherein has a cut in the insulating plate, the contact-type connector constructed by mounting a bifurcated contacts in this cut portion. 4. The external connector according to claim 3 , wherein
Conductive pin contact connector engages the notch provided inside connector has a structure in which a protruding guide for restricting the direction of the cut in the insulating terminal board and one body on the protruding surface of.