JP3018958U - IC card bezel assembly and IC card connector assembly - Google Patents

Abstract

(57) [Abstract] [Purpose] The shutter of the present invention is intended to prevent dust and the like from entering the inside of the electronic information processing device or the reader / writer and to effectively shield the entry and exit of electromagnetic waves from the card insertion port. And The IC card bezel assembly 2 of the present invention has a housing 4 and a shutter 5 for shielding electromagnetic waves, and the housing has an opening 3 for inserting and ejecting an IC card and a shutter. A connecting portion 6 for locking the openable and closable portion is formed in the portion, and the shutter shields the opening when the IC card is opened and ejected when the IC card is inserted, and both the housing and the shutter are made of a conductive material. Is electrically conducted. Furthermore, in order to effectively shield noise, the bezel assembly 2 is electrically connected to the circuit board 15 of the connector assembly 1 and maintained at a predetermined potential.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bezel assembly used for an IC card reader / writer mounted or connected to various electronic information processing devices, and a connector assembly including the bezel assembly for electrically connecting the IC card and the reader / writer. It is a thing. The IC card is inserted and ejected through the bezel assembly.

The bezel assembly according to the present application is effectively used in an IC card reader / writer or the like that requires noise shielding particularly with an external electronic information processing device, peripheral equipment, terminal device, or the like.

[0003]

[Prior art]

 A conventional IC card reader / writer has a slot for inserting and ejecting a card in its front panel, and a card opening has a shutter opening to prevent dust and dirt in the air from entering the slot. Part or bezel assembly. Bezel assembly The three-dimensional body constitutes a connector assembly together with a connector for electrically connecting the IC card and the reader / writer to transmit electric signals, etc., and attaches this connector assembly to the front panel of the reader / writer. Was common. The shutter is generally made of an insulating material such as synthetic resin which is easy to mold and inexpensive, and the housing, which is a component of the bezel assembly that supports the shutter openably and closably in front of the slot, is made of metal or plastic. It was common to use an insulating material such as.

On the other hand, it has been well known that a part of a chassis and a chassis of an electronic information processing device is made of metal and connected to a wiring board inside the device to prevent electrostatic damage. It is also well known that the housing of an electronic information processing device is made of metal to shield noise from external devices.

Conventionally, in an electronic device equipped with an IC card reader / writer, a part of an internal chassis and chassis is made of metal and connected to a substrate to take measures against EMI, and noise is generated between the external device and the external device. A metal housing is used for shielding, and a connector assembly is installed on the front surface of the metal housing to insert / eject the IC card and electrically connect the IC card to the reader / writer. It was

[0006]

[Problems to be solved by the device]

 However, even if a part of the chassis and chassis is made of metal and connected to the substrate and a metal housing is used, measures against EMI and shielding of harmful noise are not perfect. This is because the shutter provided at the card insertion port used an insulating material such as plastic. This is because plastic etc. have a very small effect of shielding various electromagnetic waves emitted from peripheral devices that cause noise. Therefore, there is a problem that the reader / writer malfunctions due to the intrusion of noise electromagnetic waves through the card insertion port. In addition, even if the shutter is made of metal, if the metallic shutter is not maintained at an appropriate potential, for example, the potential of the ESD / EMI contact, it is not an appropriate EMI countermeasure and the reader / writer malfunctions. Was also the cause.

In order to solve these problems, the bezel assembly and the connector assembly of the present invention prevent dust and the like from entering the inside of the electronic information processing device or the reader / writer, and as a measure against EMI, The purpose is to effectively block the entry and exit of electromagnetic waves from the slot.

[0008]

[Means for Solving the Problems]

 The present invention is used in an IC card connector assembly, and in a bezel assembly including a housing and a shutter, the housing has an opening and a connecting portion for locking the shutter in the opening so that the shutter can be opened and closed. The shutter is formed of a metal member, and the shutter is formed at the end of the shutter and electrically connected to the metal layer for blocking the electromagnetic wave at the opening and the shutter for locking the shutter to the housing at the connecting portion. The housing and the shutter are in electrical contact with each other directly or indirectly through another metal member at the connecting portion, and the shutter is opened and discharged when the IC card is inserted. Then, the bezel assembly shields the opening.

Further, the housing is formed by die-casting aluminum, and the shutter is formed of stainless steel, which is a bezel assembly. Further, the opening portion of the housing locks the upper and lower shutters, and the connecting portions for locking the upper and lower shutters are formed in the upper and lower portions of the housing, respectively. Is a bezel assembly that can be inserted.

Further, the present invention has a housing having an opening through which an IC card is inserted and discharged and formed of a metal material, and a metal layer which is locked to the housing and shields electromagnetic waves at the opening. The IC card includes a shutter and a circuit board having electric wiring electrically connected to the inserted IC card, and the housing and the shutter are electrically connected to predetermined electric wiring of the circuit board. This is an IC card connector assembly in which the shutter opens when it is inserted, and the shutter closes the opening when it is ejected to shield electromagnetic waves.

Further, the housing is a bezel assembly electrically connected to the wiring on the circuit board connected to the ESD / EMI contact of the memory card connector. Further, the opening portion of the housing locks two shutters on the upper and lower sides, and the connecting portions for locking the two shutters on the upper and lower sides are formed on the upper and lower portions of the housing, respectively. Is a connector assembly into which a connector can be inserted. Further, the IC card connector assembly is provided with an ejector for pushing out the IC card from the opening of the bezel assembly to the outside.

[0012]

[Action]

 In the bezel assembly of the present invention, both the housing and the shutter are made of a metal material, and they are electrically connected to maintain them at a predetermined potential, and the shutter also has a noise suppression function. This is to effectively shield harmful noise from entering the card insertion opening and dust from entering it, especially when the shutter is closed.

In addition, by electrically contacting at least a part of the metal surface of the housing and the shutter directly or through another metal member, the electric power between the housing and the shutter can be reduced. It is extremely easy to make a physical connection.

Further, both the housing and the shutter are electrically connected to the ESD / EMI contact of the connector for the memory card, which further completes the EMI countermeasure of the system.

[0015]

【Example】

 Although the present invention is not particularly limited to the following embodiments, one embodiment of the present invention will be described below with reference to the drawings 1 to 3. FIG. 1 shows a connector assembly 1 used in an IC card reader / writer for inserting an IC card and transmitting a power supply voltage, an input / output signal, a control signal and the like between the IC card and the reader / writer. Although FIG. 1 shows a dual type connector assembly in which two IC cards can be mounted at the same time, the present invention is also applied to a single type in which only one IC card is mounted, and particularly at the same time. It is not limited by the number of IC cards that can be installed. In the dual type connector assembly shown in this embodiment of FIG. 1, the upper and lower shutters are opened in the middle part, and the PCMCIA type III card (thickness 10.5 mm) is inserted in the lower slot. Then, the upper and lower shutters will open simultaneously, and when a Type I or Type II card (thickness 3.3mm or 5mm) is inserted above or below, the upper or lower shutter will open independently.

The bezel assembly 2 into which the IC card is inserted and ejected is arranged at the front of the connector assembly 1 as shown in FIG. The bezel assembly 2 of FIG. 1 has a housing 4, upper and lower shutters 5, a spring 7, and a shaft 8. The housing 4 has an opening 3 through which an IC card is inserted and ejected, and a connecting portion 6 that locks the shutter 5 so that the shutter 5 can be opened and closed. The shutter 5 has a locking portion 9 at its end, and a shaft hole 16 is formed in the locking portion 9. A connecting portion 6 is formed in the housing 4 by a metal shaft 8 penetrating a hole 10 provided at an upper portion and a lower portion (not shown) of the housing 4 and a hole 13 formed at a side portion of the hole 10. The shaft 8 may be formed integrally with the housing 4. The shutter 5 has a locking portion 9 formed at its end, and is locked by the shaft 8 of the housing penetrating the shaft hole 16 of the locking portion 9. Similarly, the spring 7 through which the shaft 8 penetrates is, for example, a torsion spring, and automatically returns the shutter to the closed position when the IC card is ejected. A stopper 11 is provided in the opening 3 to define the shielding position of the shutter.

In the present invention, the housing 4 is made of a metal material, and a desired noise shielding can be performed by using a nickel-plated housing made of an aluminum die-cast which is a good conductor and has good workability. it can. The shutter 5 needs a metal layer for shielding electromagnetic waves. For this reason, by using a single-layer stainless steel thin plate whose surface is not easily corroded as the metal material, stable electrical contact with the housing can be maintained for a long period of time. The shaft 8 is also made of a metallic material, and therefore the housing 4 and the shutter 5 which are also made of a metallic material are electrically connected by contacting each other at the connecting portion 6 via the metallic shaft 8. The electrical contact between the housing 4 and the shutter 5 may be made via a metal spring 7. Therefore, it is sufficient that the metal surface of the shutter 5 is exposed at least at the contact portion, and the other portion may be coated with a resin or the like. Further, the shutter may be an insulator whose surface is coated with a metal material so as to have an electromagnetic wave shielding effect.

As shown in FIG. 1, the conductive shutter 5 has a shape that shields the opening 3 of the housing 4 when an IC card is not inserted, and is positioned so as to shield the opening. , It prevents dust and dirt from entering the inside of IC card reader / writer, etc., and at the same time acts as an electromagnetic wave shield.

FIG. 2 shows a cross section taken along line XX ′ of the connector assembly 1. FIG. 2 illustrates only the components that are particularly relevant to the present invention and omits the other components. In FIG. 2, the IC card 12 is inserted only in the upper part and not in the lower part. The uninserted IC card 12 is shown in dotted lines. When the IC card 12 is inserted, the upper shutter 5 is pushed by the IC card 12 and rotates counterclockwise about the shaft 8 by about 90 degrees. FIG. 2 shows this state. In order to carry out the present invention more effectively, it is desirable that the front surface 19 of the IC card 12 is also provided with a conductive film effective as an electrostatic shield. In FIG. 2, the lower insertion port, in which the IC card 12 is not inserted, is shielded by the lower shutter 5 made of a conductor.

In FIG. 2, a screw hole 14 is formed in the housing 4 for electrically connecting the housing 4 and the circuit board 15 having an ESD / EMI pad or a ground wire. The housing 4 and the circuit board 15 are mechanically and electrically connected to each other by inserting the metal screw 18 into the hole of the circuit board 15 provided so as to face the screw hole 14 and tightening them together. The means for electrically connecting the housing 4 and the circuit board 15 is not limited to the above embodiment. The housing 4 is electrically connected to the ESD / EMI pad of the circuit board or the ground line in order to shield noise more effectively. If necessary, it may be connected to the ground wire of the circuit board. Since the housing 4, the shaft 8 and the shutter 5 are each made of a conductive material, the shutter 5 is also electrically connected to the ESD / EMI pad or the ground line, like the housing 4.

FIG. 3 is an enlarged partial view of the connecting portion 6 of the housing 4. Further, the connector assembly includes an ejector 17 for ejecting the IC card from the opening by pushing the IC card forward from the connector assembly by a pushing lever or the like after the IC card is used.

[0022]

[Effect of device]

 By configuring the shutter of the bezel assembly for IC memory cards with a conductive material and having a noise shielding effect, the countermeasures against noise malfunction of not only the IC card reader / writer but also peripheral devices have become more complete.

Further, the housing and the shutter are electrically connected to the ESD / EMI wiring of the circuit board of the connector assembly and electrically connected to the ESD / EMI contact of the connector, so that the chassis and the peripheral device chassis can be provided. It was possible to make the potential the same, and it was possible to achieve a more complete anti-noise effect.

By forming the housing by die-casting aluminum and forming the shutter by stainless steel, it is possible to form an assembly that is easy to manufacture, the surface is not easily corroded after shipping, and the conductivity is easily maintained. It was

In the dual type, by connecting the shutter of the bezel assembly with the connecting portions provided on the upper and lower portions of the housing, the shutter can be attached so that the shutter opens in a so-called double-door shape toward the inside of the opening. , When the PCMCIA type III card is inserted in the lower slot, the upper and lower shutters are opened simultaneously, and when the type I or type II card is inserted in the upper or lower, only the upper and lower shutters are opened independently. It became so. Therefore, when only one memory card was inserted, only the shutter of the insertion part was opened and the other shutter was kept closed, and it was possible to provide a more complete measure against dust and noise. By providing the ejector 17, it was possible to form a connector assembly which is easy to use with an electromagnetic shielding effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall configuration of a bezel assembly and a connector assembly incorporating the same according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX ′ in FIG.

FIG. 3 is a partially enlarged plan view of a connecting portion formed on the housing.

[Explanation of symbols]

1 ... Connector assembly 2 ... Bezel assembly
3 ・ ・ Opening 4 ・ ・ Housing 5 ・ ・ Shutter 6 ・ ・ Connecting part 7 ・ ・ Spring 8 ・ ・ Shaft 9 ・ ・ Locking part 10 ・ ・ Hole 11 ・ ・ Stopper 12 ・ ・ IC card 13 ・ ・ Hole
14 ・ ・ Screw hole 15 ・ ・ Circuit board 16 ・ ・ Shaft hole 17 ・ ・ Ejector 18 ・ ・ Metal screw 19 ・ ・ Front part of IC card

Claims (7)

[Scope of utility model registration request] 1. A bezel assembly used for an IC card connector assembly, comprising a housing and a shutter, wherein the housing has an opening portion and a connecting portion for locking the shutter so that the shutter can be opened and closed at the opening portion. The shutter is formed of a metal member, and the shutter is formed at the shutter end portion for locking the shutter to the housing at the connecting portion and the metal layer for shielding the electromagnetic wave at the opening. A shutter electrically connected to the layer, the housing and the shutter are electrically contacted directly or indirectly through another metal member at the connecting portion, Is a bezel assembly that blocks the opening when the IC card is opened and ejected. 2. The bezel assembly according to claim 1, wherein the housing is formed by aluminum die casting, and the shutter is formed by stainless steel. 3. The opening of the housing locks two shutters on the upper and lower sides, and connecting parts for locking the two shutters on the upper and lower sides are formed in an upper portion and a lower portion of the housing, respectively. The bezel assembly according to claim 1, wherein two IC cards can be inserted. 4. A housing having an opening through which an IC card is inserted and ejected and formed of a metal material, and a shutter having a metal layer which is locked to the housing and shields electromagnetic waves at the opening. A circuit board having electric wiring electrically connected to the inserted IC card, wherein the housing and the shutter are electrically connected to predetermined electric wiring of the circuit board, and the IC card is inserted. The shutter opens when
A connector assembly for an IC card in which the shutter closes the opening to shield electromagnetic waves when discharged. 5. The bezel assembly according to claim 4, wherein the housing is electrically connected to wiring on the circuit board connected to the ESD / EMI contact of the memory card connector. 6. The opening of the housing locks two upper and lower shutters, and connecting portions for locking the upper and lower two shutters are formed in an upper portion and a lower portion of the housing, respectively. The connector assembly according to claim 4, wherein a single IC card can be inserted. 7. The IC card connector assembly according to claim 4, further comprising an ejector for ejecting the IC card from the opening of the bezel assembly to the outside.