JP2007114981A - Ic card with built-in oscillation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact IC card having an oscillation device for generating intensive vibration. <P>SOLUTION: The oscillation device 10 formed by a coil 11 and magnets 12 and 13 is arranged in the inside of an IC card housing 2. The coil 11 and magnets 12 and 13 are mutually located in a horizontal direction, the coil 11 is fixed on the inner face of a first surface 2a of the housing 2, and the magnets 12 and 13 are fixed on the inner face of a second surface 2b. When the coil 11 is energized, surface vibration is given to the second surface 2b from the magnets 12 and 13, and the surface vibration is given to the first surface 2a from the coil 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an IC card having a notification function, and more particularly to an IC card capable of notifying a user of an operating state of a card by vibrating a card housing.

  Patent Document 1 below discloses a non-contact IC card in which a notification element is incorporated inside and a user can know the operation state of the card by driving the notification element.

This non-contact IC card has a notification element such as a light emitting element, a sound generation element, or a vibration element incorporated therein, and these notification elements are driven according to the operation state of the card to notify the user of the operation state of the card. Is.
JP-A-9-114945

  The non-contact IC card, for example, when the notification element is operated only when the voltage value output from the rectifier circuit is equal to or higher than a predetermined value, or when communication is performed between the terminal device and the card. The notification element operates to notify the user of the operation state of the card.

  However, the vibration element described in Patent Document 1 uses a piezoelectric element that can be built in a thin card. However, the piezoelectric element can be thinned, but since the amplitude of the vibration is minute, it is difficult to give sufficient vibration for notification to the hand of the person holding the IC card.

  In addition, the piezoelectric element can convert the voltage into a change in volume. However, as shown in Patent Document 1, the plate-like piezoelectric element cannot increase the amount of change in the volume in the plane direction. Large amplitude vibrations cannot be generated.

  The present invention solves the above-mentioned conventional problems, and provides an IC card in which a vibration device is housed in a thin card-like casing and can give a large vibration to the surface of the casing. For the purpose.

The present invention provides an IC in which a transmission / reception unit that performs at least one of reception and transmission of signals, a vibration device that vibrates the housing, and a control unit that drives the vibration device are provided in a card-shaped housing. In the card
The vibration device includes a magnetic circuit having a coil and a magnet, and the vibration device gives vibration to the housing when the coil is energized.

  In the IC card of the present invention, since the vibration device housed in the card-like casing is composed of a coil and a magnet, it can give a large amplitude vibration to the casing. Can fully recognize vibrations.

  In the present invention, it is preferable that the vibration device applies a vibration parallel to the surface of the card to the housing.

  In particular, according to the present invention, the coil has a pair of current-carrying portions through which currents flowing in opposite directions flow, and a magnetic field in a reverse direction is applied to one and the other of the current-carrying portions from the magnet. It is preferable that at least one of the coils is fixed to the surface of the casing, and two different directions of force are alternately applied to the surface of the casing by bidirectional energization of the coils.

  As described above, when a force is alternately applied to the surface of the card in two directions, vibration in the surface direction of the case propagates to the surroundings, and any part of the case is held. It is possible to give a vibration of sufficient amplitude to the hand.

  For example, in the present invention, the vibration device is vibrated when at least one of reception of a signal and transmission of a signal is recognized by the control unit.

  In the IC card of the present invention, since the vibration device housed in the housing is composed of a coil and a magnet, vibration with a large amplitude can be given to the card-shaped housing. In addition, since the alternating force is applied in the direction along the surface of the card-like casing, the vibration is easily felt with a hand or the like in the entire area of the casing.

  1 is a perspective view showing an IC card according to an embodiment of the present invention, FIG. 2 is a circuit block diagram thereof, FIG. 3 is a perspective view showing a vibrating device incorporated in the IC card, and FIGS. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

  The IC card shown in FIG. 1 receives and transmits signals in a non-contact manner, and has a card-like housing 2. The housing 2 is made of synthetic resin, and has a first surface 2a and a second surface 2b that face each other. The first surface 2a and the second surface 2b include both side surfaces 2c and 2c and both ends. It has a sufficiently large area compared to the areas of the surfaces 2d and 2d.

  A control unit 3 and a battery 4 are accommodated in the housing 2. A vibration device 10 is housed in the center of the housing 2. The position of the vibration device 10 is set such that the center of gravity of the housing 2 is positioned so as to overlap the vibration device 10. As shown in FIG. 2, a power generation unit 5 that converts an electromagnetic wave applied from the outside into electric power and applies it to a control unit (IC) and an external signal are received and generated in the control unit 3. A transmission / reception unit 6 for transmitting the transmitted signal is provided. The power generation unit 5 includes a coil that converts electromagnetic waves applied from the outside into a current, a large-capacity capacitor that stores the power obtained from the coil, and a rectifier that converts the power into DC power.

  As shown in FIG. 3 and FIGS. 4A and 4B, the vibration device 10 includes a coil 11 wound in a ring shape and a pair of magnets 12 and 13 provided inside the coil 11. Has been. Since the coil 11 is wound in a ring shape, the direction of the current is opposite between the pair of energizing portions 11a and 11b facing each other at an angle of 180 degrees.

  The magnet 12 and the magnet 13 are configured independently of each other, and the magnet 12 is magnetized so as to have opposite magnetic poles such that the upper surface 12a is an S pole and the lower surface 12b is an N pole. Has been. The magnet 13 is magnetized to have opposite magnetic poles such that the upper surface 13a is an N pole and the lower surface 13b is an S pole. The surface 12a of the magnet 12 and the surface 13a of the magnet 13 are magnetic poles opposite to each other, and the lower surface 12b of the magnet 12 and the lower surface 13b of the magnet 13 are magnetic poles opposite to each other.

  As shown in FIGS. 4A and 4B, the coil 11 and the magnets 12 and 13 are arranged in a space 2 e formed inside the housing 2. The coil 11 is fixed to the inner surface of the first surface 2a of the housing 2 with an adhesive, and the magnets 12 and 13 are fixed to the inner surface of the second surface 2b of the housing 2 with an adhesive. That is, the coil 11 and the magnets 12 and 13 are fixed inside different surfaces of the housing 2 that face each other.

  The vibration device 10 is driven by applying an alternating current to the coil 11 from the control unit 3 shown in FIG.

  In this vibrating device 10, the magnetic field magnetized by one magnet 12 crosses counterclockwise in the cross section of FIG. 4 with respect to one energizing portion 11 a of the coil 11 and is magnetized by the other magnet 13. The magnetic field crosses clockwise with respect to the other energizing portion 11b of the coil 11. Therefore, as shown in FIG. 4A, when a current flows clockwise in the coil 11, a rightward force acts on both magnets 12 and 13, and a counterclockwise force is exerted on the coil 11 as a reaction force. Works. On the contrary, as shown in FIG. 4B, when a current flows in the counterclockwise direction in the coil 11, a leftward force acts on both the magnets 12 and 13, and as a reaction force, the coil 11 moves in the rightward direction. The force of acts.

  When an alternating current flows through the coil 11, alternating vibrations in the left-right direction are given from the magnets 12 and 13 to the second surface 2b of the casing 2, and the first phase of the casing 2 is supplied from the coil 11. Alternate vibrations in the left-right direction are applied to the surface 2a. That is, the vibration excited by the vibration device 10 is transmitted in the surface direction with respect to both the first surface 2a and the second surface 2b. Further, the vibration applied to the first surface 2a and the vibration applied to the second surface 2b have the same phase and frequency.

  As shown in FIG. 1, when the vibration device 10 is arranged at the center of gravity of the housing 2, the vibration propagates from the center of gravity to the first surface 2 a and the second surface 2 b so as to spread from the center of gravity to the periphery. To do. Therefore, no matter what position of the housing 2 is held by a finger, vibrations having substantially the same intensity and substantially the same amplitude can be felt by hand. In addition, the vibration is generated by electromagnetic force, and vibration is applied to both the first surface 2a and the second surface 2b. Therefore, even when the finger is touching the first surface 2a, the second Even when the surface 2b is touched, it is possible to feel vibration with a finger.

  When the IC card 1 shown in FIG. 1 is brought close to a device main body such as an entry / exit gate or various electronic devices, an electromagnetic wave applied from the device main body is converted into electric power by the power generation unit 5 and applied to the control unit 3. Further, based on the control operation of the control unit 3 activated by the power, a signal from the outside is received by the transmission / reception unit 6 and a signal is emitted from the transmission / reception unit 6. When the control unit 3 detects that a signal has been received, or when it is recognized that a signal has been transmitted, the control unit 3 energizes the coil 11 of the vibration device 10 to cause the vibration device 10 to vibrate. appear. Therefore, the user holding the IC card 1 can recognize by vibration that the signal has been received or that the signal has been transmitted.

  Moreover, the electric power given to the vibration device 10 can use the electric power converted by the electric power generation unit 5 and stored in the electric storage unit, or the electric power from the battery 4 can be used.

  Note that the IC card of the present invention may have only a reception function or only a transmission function. Further, the coil 11 is not limited to the one wound in the ring shape, and may be a quadrangle of the magnets 12 and 13 that is wound in a quadrangle. The magnets 12 and 13 may be integrated by bonding with an adhesive or the like, or may be one in which different magnetic poles are magnetized on the surface of the integrated magnet. However, if the coil 11 has a ring shape and the magnets 12 and 13 have a circular shape, the generated vibration propagates through the first surface 2a and the second surface 2b, and is uniform in the surrounding directions. Easy to propagate.

The perspective view of IC card of an embodiment of the invention, IC card circuit block diagram, A perspective view of the vibration device, (A) (B) is sectional drawing of the IV-IV line | wire of FIG. 3 which shows a vibration device according to operation | movement,

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 IC card 2 Case 3 Control part 10 Vibrating device 11a, 11b Current supply part 12, 13 Magnet

Claims (4)

In an IC card in which a transmission / reception unit that performs at least one of reception and transmission of a signal, a vibration device that vibrates the housing, and a control unit that drives the vibration device are provided in a card-shaped housing.
The vibration device includes a magnetic circuit having a coil and a magnet, and the vibration device applies vibration to a housing when the coil is energized.   The IC card according to claim 1, wherein a vibration parallel to a surface of the card is applied to the housing from the vibration device.   The coil has a pair of current-carrying parts through which currents flowing in opposite directions flow, and a magnetic field in a reverse direction is applied from the magnet to one and the other of the current-carrying parts. The IC card according to claim 2, wherein the IC card is fixed to the surface of the housing, and forces in two different directions are alternately applied to the surface of the housing by bidirectional energization of the coil.   4. The IC card according to claim 1, wherein the vibration device is vibrated when at least one of reception of a signal and transmission of a signal is recognized by the control unit. 5.

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