JP2002289282A - IC card connector - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The front and back of an IC card can be selected at low cost by using the same connector. SOLUTION: A soldering end of a terminal 3 constituting an IC card connector 1 is Z-shaped when viewed from the terminal width direction, a means for providing a soldering surface on the front and back of the connector, Different projections 11, 1
2 means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for fitting an IC card to an electronic device, and more particularly to an IC card connector capable of arbitrarily selecting the front and back of the IC card on a printed circuit board constituting the electronic device. Regarding the structure.

[0002]

2. Description of the Related Art At present, various IC cards are used for authentication such as bank settlement and system security and for data storage, and electronic devices using these are increasing.

[0003] Generally, an IC card has a contact point on either the front or the back. For example, an ISO card used for authentication is used.
The 7846-2 IC card is called a bank card, and is configured such that the contact point is turned up in the actual use state for settlement at a bank or the like.

[0004] On the other hand, in a broadcasting service, it is called a CA card, and when it is used for decryption, it is configured so that a contact point is located down. In addition, some IC cards are mounted on portable devices and used for storing music and image data.

As such IC cards have become widespread, devices in which the above-mentioned various cards are mounted together in one device have appeared. However, in order to avoid confusion of use by users, each device has been described. It is common to align the surfaces of the cards.

Generally, such an IC card connector is provided with a terminal for soldering to a printed board, which is integrated with a contact point with the IC card, as shown in Japanese Patent Application Laid-Open No. Conduct and fix. Therefore, the front and back of the IC card are defined by the mounting direction of the printed circuit board on which the IC card connector is mounted.

Therefore, in a conventional device, when a plurality of cards having different front and back sides are used for the same device, at least two printed circuit boards having the same connector are prepared.
One printed circuit board was inverted and used by mounting it on equipment, or an IC card connector with a special structure that had two sets of terminals facing each other and could be inserted on either top or bottom was used. .

[0008]

As described above, in order to use a plurality of cards having different terminal surfaces in the vertical direction in the same device, the printed circuit board is divided and the upper and lower sides are switched by the mounting method of the printed circuit board. It is necessary to use a connector having a special structure in which terminals are mounted on the front and back surfaces, and as a result, there is a problem that assembling costs and unit costs increase and manufacturing costs increase.

Accordingly, an object of the present invention is to provide an IC card connector that can be mounted on the same printed circuit board and that can be arbitrarily selected from front and back sides of the IC card by a simple structure using a general pair of terminals. That is.

[0010]

According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, according to the first aspect of the present invention, the terminal is formed by a means for forming a Z-shaped cross section of the terminal to be soldered to the printed board when viewed from the width direction of the terminal. This connector has a solderable terminal surface that faces the circuit pattern of the printed circuit board on both the front and back surfaces of the connector.

According to the second aspect of the present invention, the mounting direction of the IC connector that can be mounted in both directions can be selected by the shape of the positioning hole formed in the printed circuit board.
It consists of means for providing projections with different cross-sectional shapes on the front and back.

According to the third aspect of the present invention, the mounting direction of the IC connector that can be mounted in both directions can be selected by the position of the positioning hole formed in the printed circuit board.
It consists of means for providing protrusions at different positions on the front and back.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an IC card connector according to a preferred embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view of an IC card connector according to a first embodiment of the present invention. FIG. 2 is an enlarged side view of the terminal portion shown in FIG. 1 when the IC card connector of FIG. 1 is attached to a printed circuit board. FIG. 3 is an enlarged side view of the side where the terminal portion of FIG. 1 is attached to the printed circuit board when the IC card connector of FIG.

In FIG. 1, an IC card connector 1 comprises a housing 2 made of plastic or the like and terminals 3 attached to and fixed to the housing. The IC card connector 1 has a spring-like contact 5 provided at one end of a terminal 3 indicated by a broken line in FIG.

The IC card 4 is inserted into the IC card connector 3 in the direction of the arrow, and the contact portion 5 of the terminal 3 and the contact 6 of the IC card come into contact to obtain electrical continuity. The IC card connector 1 is shown in FIG.
Is fixed by the solder 10 as shown in FIG.

In FIG. 2, a soldering portion 8 of the terminal 3 is soldered to a circuit pattern 9 of a printed circuit board 7.
In the example of FIG. 2, the contact 6 of the IC card 4 is inserted so as to be located on the lower side as shown in FIG. On the other hand, by mounting the IC card connector 1 upside down on the printed circuit board 7, the contact portion of the IC card 4 can be used with the contact portion facing upward. In this case, the soldering portion 11 of the terminal 3 is soldered to the circuit pattern 9 of the printed circuit board 7 as shown in FIG.

(Embodiment 2) FIG. 4 is a three-dimensional view of an IC card connector according to a second embodiment of the present invention, and FIG.
FIG. 4 is a plan view of the C card connector 1 as viewed from below in FIG.
FIG. 6 is a plan view of the IC card connector 1 as viewed from above in FIG.

In FIG. 4, the IC card connector 1 has convexes 12A, 12A on the upper and lower surfaces of the housing 2, respectively.
B, 13A, and 13B are provided, and are positioned and fixed in holes provided in the printed circuit board.

When the IC card connector 1 is mounted in the direction of the example shown in FIG. 4, the printed circuit board has a cross section shown in FIG. 5 provided on the lower surface of the IC card connector 1 shown in FIG. By providing holes corresponding to the protrusions 13A and 13B, the IC card connector can be mounted in the direction of FIG.

On the other hand, when mounting the IC card connector 1 upside down from the example shown in FIG. 4, the printed circuit board is provided on the upper surface of the IC card connector 1 shown in FIG.
By providing holes corresponding to the protrusions 12A and 12B having the cross section shown in FIG. 4, the IC card connector 1 can be mounted without any doubt in the direction opposite to that of FIG.

(Embodiment 3) FIG. 7 is a three-dimensional view of an IC card connector 1 according to a third embodiment of the present invention, FIG. 8 is a plan view of the IC card connector 1 as viewed from below in FIG. 7 is a plan view of the IC card connector 1 as viewed from above in FIG.

In FIG. 7, the IC card connector 1 has protrusions 14A and 14A on the upper and lower surfaces of the housing, respectively.
B, 15A, and 15B are provided, and are positioned and fixed in holes provided in the printed circuit board.

When the IC card connector 1 is mounted in the direction of the example shown in FIG.
By providing holes corresponding to the protrusions 15A and 15B provided at the position shown in FIG. 8 provided on the lower surface of the card connector, the IC card connector 1 can be surely mounted in the direction of FIG.

On the other hand, when mounting the IC card connector 1 upside down from the example shown in FIG. 7, the printed board is provided with a convex at the position shown in FIG. 9 provided on the upper surface of the IC card connector in FIG. By providing holes at the positions corresponding to 14A and 14B, the IC card connector 1 can be mounted without any doubt in the direction opposite to that of FIG.

[0026]

As described above, according to the present invention, the insertion direction of the IC card can be arbitrarily selected at a low cost with a simple structure. Also, the front and back sides of the connector can be mounted on the printed circuit board without fail.

[Brief description of the drawings]

FIG. 1 is a perspective view of an IC card connector according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a soldered portion of a terminal.

FIG. 3 is an enlarged sectional view of a soldered portion of a terminal.

FIG. 4 is a three-dimensional view of an IC card connector according to a second embodiment of the present invention.

FIG. 5 is a bottom view of an IC card connector according to a second embodiment of the present invention.

FIG. 6 is a top view of an IC card connector according to a second embodiment of the present invention.

FIG. 7 is a perspective view of an IC card connector according to a third embodiment of the present invention.

FIG. 8 is a bottom view of the IC card connector according to the third embodiment of the present invention.

FIG. 9 is a top view of an IC card connector according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 IC card connector 2 Housing 3 Terminal 4 IC card 5 Terminal contact 6 IC card contact 7 Printed circuit board 8 Soldering part 9 Circuit pattern 10 Solder 11 Soldering part 12A, 12B Convex part 13A, 13B Convex part 14A, 14B Convex part 15A , 15B convex part

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H01R 23/68 301J F-term (Reference) 2C005 MA33 MB08 NA03 TA21 5B058 CA13 KA24 YA20 5E023 AA16 AA21 BB14 BB22 CC23 CC26 DD17 FF01 GG07 HH01 HH28 5E077 BB26 BB31 CC23 CC27 DD01 EE02 GG04 JJ05 JJ11

Claims (3)

[Claims] 1. A housing made of plastic or metal having an opening corresponding to an IC card, and inserted into and fixed to the housing, and one end of the housing forms a spring-like contact. The other end outside the housing forms a flat surface on the same surface as the bottom surface of the housing, and is soldered to the circuit pattern of the printed circuit board on which the connector is mounted. In an IC card connector including a terminal portion that performs electrical conduction, an end of the terminal portion on the printed circuit board side is formed in a Z-shaped cross section when viewed from the width direction of the terminal.
An IC card connector characterized in that two parts forming an upper side and a lower side are formed as ends which can be soldered to a printed circuit board. 2. The IC card connector according to claim 1, wherein positioning protrusions are provided on the bottom and top surfaces of the housing, and the positioning protrusions have different cross-sectional shapes between the bottom surface and the top surface. . 3. The IC card connector according to claim 1, wherein positioning protrusions are provided on the bottom surface and the top surface of the housing, and the positions of the positioning protrusions are asymmetrically different between the left and right and the bottom surface. Characteristic IC card connector.