JP2001283987A - Connector for ic card having switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an SIM connector having a switch thin-shape, and to reduce its manufacturing cost. SOLUTION: In a portable telephone, which is composed of a switch part 12 which detects an insertion of an IC card 14 in the SIM connector 10, having a switch including a molded base 24 under which an IC card contact terminal 18, is laid by insertion molding, and a cover 26 which guides the IC card 14, a contacting piece of a fixation side of the switch part 12 is formed as a circuit pattern of a printed circuit board on a molding base 24, and only a contact piece 30 of a movable side of the switch part 12 is constituted in the SIM connector. Moreover, a synthetic resin part 46 of the contact piece 30 of the movable side is molded, simultaneously with the molding base 24 by preparing a dummy coordinating part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card connector (hereinafter, referred to as a SIM connector) suitable for a cellular phone or the like, and more particularly, to a configuration of a connector switch for detecting whether or not an IC card is inserted and a molding method thereof. About.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view of a portion of a conventional SIM connector 100 with a switch, and FIG. 7 is a conventional switch portion disposed in the SIM connector 100 with a switch to detect whether a SIM card 101 is inserted. 102 is enlarged in cross section. The SIM card 101 inserted into the guide cover 103 is indicated by a two-dot chain line. 105
Is a contact with the SIM card 101, and the molding base 106
Embedded by insert molding. 107 is an IC
A connection terminal with an external circuit provided for extracting a signal from the card is provided, and 108 is a switch terminal.

The conventional switch section 102 is a movable piece 11 composed of a fixed piece 109 and a free end 110 which is cantilevered at one end and can be elastically displaced as an electrical contact.
1 and 2 are made of two metal sheets having good electric conductivity. Contact 113 provided on projection 112 of movable piece 111
Means that the SIM card 101 is free end 110 of the movable piece 111
The switch unit 102 is closed by engaging with the synthetic resin part 114 provided in the above and pushing the movable piece 111.

[0004]

As described above, in the conventional switch section 102, since the two metal pieces of the fixed piece 109 and the movable piece 111 are used while being superposed in the thickness direction, the switch section 102 is not provided. Inevitably, the thickness S is inevitably increased compared to products without
The thinning of the M connector 100 is hindered, which is a problem for products that are supposed to be light and thin.

Further, a synthetic resin portion 114 provided on the movable piece 111 in order to avoid direct contact with the SIM card 101.
In this method, the movable piece 111 is insert-molded in the synthetic resin part 114 by a separate process, or the movable piece 111 is fixed to the molded product of the synthetic resin part 114 by press fitting. For this reason, it is unavoidable that the production cost required for the separate process greatly affects the product price.

Therefore, an object of the present invention is to provide a switch-equipped SI
The manufacturing cost can be reduced by reducing the thickness of the M connector and simplifying the process.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a switch-equipped IC having a contact for contacting an IC card to form a circuit, and having a switch for detecting whether or not the IC card is inserted. In the card connector, the fixed terminal of the switch is disposed on a printed circuit board on which the connector is mounted, and a member for supporting the movable terminal of the switch so as to contact the fixed terminal in accordance with the insertion of the IC card is provided. It is characterized by.

In the method for manufacturing a connector, a contact is provided so as to form a circuit by contacting the IC card inserted into the connector, and a fixed terminal of a switch for detecting whether or not the IC card is inserted is attached to the connector. A member for supporting the movable terminal of the switch so as to come into contact with the fixed terminal in accordance with the insertion of the IC card, and a portion of the member and the movable terminal contacting the IC card. Is simultaneously molded with a resin.

Further, in the above method, the connecting portion of the movable terminal which comes into contact with the IC card is provided with a connecting portion between the movable terminal and the movable terminal supporting member, and is integrally molded with resin, and then the connecting portion is cut off. You may.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a SIM connector with a switch according to an embodiment of the present invention. FIG. 1 shows an SI with a switch according to the present invention.
FIG. 2 is an exploded perspective view of the M connector 10, and FIG. FIG. 3 is a partially enlarged plan view of the switch section 12, and FIG. 4 is a cross-sectional view taken along line 4-4 in FIG.

The SIM connector 10 with a switch is an IC
It is composed of a contact 18 forming a circuit with the card 14, a molded base 24 in which signal extraction terminals 20 and switch terminals 22 of the IC card are respectively arranged at designated positions, and a cover 26 serving as an IC card insertion guide. Further, the fixed contact piece 28 of the switch section 12 is formed on the printed circuit board surface 29 together with other circuit patterns by an appropriate means such as etching. The fixed-side contact piece 28 partially exposes the conductor surface to ensure that the switching function works. In FIG. 4, the fixed contact piece 28 is exaggerated, but is the same as the printed circuit board surface 29.

On the other hand, the switch section 1 is
Only the two movable contact pieces 30 are supported in a cantilever shape with one end as the fixed end 32 by insert molding. The movable contact piece 30 is an elastic piece made of a good conductive metal sheet. The fixed end 32 is a single continuous plate material. The center contact arm 42 is separated from the operation arm 44.

Further, the double-row operation arm 44 is elastically displaced integrally by the pushing movement of the synthetic resin portion 46 mounted on the tip. As described above, the double-row operation arm 44 and the central contact arm 42 are tentatively independent of each other, but the acting force acting on each of them is transmitted to each other via the continuous portion 38 on the fixed end 32 side. . Therefore, the double-row operation arm 44 and the center contact arm 42 can each independently be elastically displaced, but the displacements affect each other.

Further, the synthetic resin portion 46 has a slope 48 in the direction of the fixed end 32. In the process of inserting the IC card 14 in the direction of arrow A in FIG. By sliding, the synthetic resin portion 46 is pushed downward (in the direction of arrow B in the figure), and the double-row operation arm 44 is bent downward by elastic deformation. This deformation is transmitted to the central contact arm 42 via the continuous portion 38 on the fixed end 32 side. The central contact arm 42 is displaced following the elastic deformation of the double-row operation arm 44, and the contact 50 is formed by bending the free end 34 and projecting.
Is pressed against the fixed contact piece 28 of the switch section 12 mounted on the printed circuit board surface 29 to close the circuit.

At this time, elastic deformation is forcibly applied to the double-row operation arm 44 by the IC card 14. On the other hand, after the central contact arm 42 is displaced until the contact 50 comes into contact with the fixed contact piece 28, the acting force due to the further elastic deformation of the double row operating arm 44 is reduced to the continuous portion of the fixed end 32, and The arm 42 is elastically deformed, and an appropriate pressing force is applied to the contact 50.

As described above, since the pattern surface 29 of the printed circuit board is used as the fixed contact piece 28 constituting the contact on one side of the switch section 12, the structure becomes extremely simple and the thickness D can be reduced. become.

Hereinafter, a SIM with a switch according to the present invention will be described.
A method for manufacturing the synthetic resin portion 46 formed on the movable contact piece 30 of the switch portion 12 in the connector 10 will be described. Normally, the signal extraction terminal 20 and the switch terminal 22 of the IC card are formed in a molding base 24 by insert molding. In the SIM connector with switch 10 according to the present invention, the synthetic resin portion 46 of the movable contact piece 30 is molded at the time of the insert molding, so that molding in a separate step is not required, and the working efficiency is improved.

That is, the synthetic resin portion 46 of the movable side contact piece 30 has a connecting portion 52 as shown by a shadow in FIG.
It can be easily molded by being bridged between the synthetic resin portion 46 and the molding base 24 at the time of molding.
2 can be easily cut off by a separating process after molding. Therefore, the trace of the cutting process left on the product can be used as an index for identifying that the manufacturing method is related to the present invention.

[0019]

As is apparent from the above description, according to the SIM connector with a switch according to the present invention, the fixed side contact piece of the switch for identifying the presence or absence of insertion of the IC is formed on a molded printed circuit board as a part of a printed circuit. Therefore, the thickness of the connector with switch can be reduced. In addition, since the synthetic resin portion of the movable contact piece is molded at the same time as the molding base, the number of steps can be reduced, and the manufacturing efficiency can be improved and the price can be reduced. The present invention is not limited to mobile phones, but can be widely used for electronic devices using IC cards. Further, the base may not be a molded base. Further, the fixed contact piece does not need to use the pattern of the printed circuit board.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a switch-equipped SIM connector according to the present invention.

FIG. 2 is a perspective view showing an assembled state of FIG. 1;

FIG. 3 is a partially enlarged plan view of a switch section in an embodiment of the SIM connector with a switch according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is a plan view for explaining a method of manufacturing a switch section in one embodiment of the SIM connector with a switch according to the present invention.

FIG. 6 is a perspective view of a conventional SIM connector portion with a switch.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 SIM connector with switch 12 Switch part 14 IC card 24 Molding base 28 Fixed contact piece 29 Pattern surface 30 Movable contact piece 42 Central contact arm 44 Double row operation arm 46 Synthetic resin part 52 Connecting part

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H01R 43/00 H01R 23/68 301J F term (reference) 2C005 MA15 MA18 MA19 MB10 NA02 TA03 TA04 TA06 5B058 CA02 CA13 KA24 5E021 FA05 FA11 FB02 FB18 FC32 FC38 FC40 KA09 MA19 5E023 AA04 AA16 AA21 AA24 AA29 BB01 BB19 BB22 CC23 CC26 DD25 EE10 GG14 HH03 HH27 HH28 5E051 BA08 BB01 BB05

Claims (3)

[Claims] An IC card connector with a switch, comprising: a contact for contacting the IC card to form a circuit; and a switch for detecting whether or not the IC card is inserted.
A switch, wherein a fixed terminal of the switch is disposed on a printed circuit board on which a connector is mounted, and a member for supporting a movable terminal of the switch so as to contact the fixed terminal in response to insertion of an IC card is provided. Connector for attached IC card. 2. A method according to claim 1, further comprising: providing a contact so as to form a circuit by contacting the IC card inserted into the connector;
The fixed terminal of the switch that detects the presence or absence of card insertion is arranged as a pattern on the printed circuit board on which the connector is mounted,
Providing a member for supporting the movable terminal of the switch so as to come into contact with the fixed terminal in accordance with the insertion of the IC card, and simultaneously molding the member and the portion of the movable terminal contacting the IC card with resin. Features IC with switch
Manufacturing method of card connector. 3. The connecting part of the movable terminal, which is in contact with the IC card, is provided with a connecting part between the movable terminal and the movable terminal supporting member, and is integrally molded with resin, and then the connecting part is cut off. Item 3. A method for manufacturing a connector for an IC card with a switch according to Item 2.