CN210295166U

CN210295166U - IC card

Info

Publication number: CN210295166U
Application number: CN201920834207.7U
Authority: CN
Inventors: 陈彬彬
Original assignee: China Unionpay Data Services Co ltd
Current assignee: China Unionpay Data Services Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-04-10
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a IC card, IC card includes: a coil and a switch wound by a metal wire; at least one disconnected part exists in the coil, the first end of each disconnected part is connected with the first end of the corresponding switch, and the second end of each disconnected part is connected with the second end of the corresponding switch. Since in the embodiment of the present invention, there is at least one disconnection in the coil of the IC card, each disconnection is connected to a corresponding switch. Only when the card holder puts all the switches in the closed state, the coil in the IC card can be conducted, and the conducted coil serves as an antenna of the IC card, so that the function of subsequent data transmission is realized. The problem that lawbreakers can steal funds of the account of the card holder when approaching the IC card of the card holder through an intelligent terminal or a POS machine which accepts bank card services is solved. The transaction security of the IC card is improved.

Description

IC card

Technical Field

The utility model relates to an electronic circuit technical field especially relates to a IC card.

Background

With the rapid development of the payment industry and the bank card industry, a novel payment mode is continuously developed from traditional offline card swiping consumption of the bank card to mobile payment and internet payment, however, the offline card swiping consumption of the bank card is still used as a mainstream payment mode and occupies an absolute dominant position in online entity consumption.

In recent years, the bank card smoothly transits from the traditional magnetic stripe card to the chip card, namely the IC card, and transits from card swiping to card swiping, and the 'pay-as-you-go' mode is a new mode of card swiping consumption. The working principle of the IC card is as follows: the radio frequency reader-writer sends a group of electromagnetic waves with fixed frequency to the IC card, and a coil in the IC card serves as an antenna of the IC card and receives the electromagnetic waves. The IC card is internally provided with a resonance circuit, the frequency of the resonance circuit is the same as the frequency emitted by the reader-writer, so that the resonance circuit generates resonance under the excitation of electromagnetic waves, the resonance circuit is used as a power supply to provide working voltage for the chip, and the chip transmits data.

In order to meet the payment experience of the card holders, the commercial banks have opened a small-amount sign-free and secret-free function at present, that is, the payment can be completed without inputting a payment password by the card holders within a certain consumption amount. Although the payment mode provides convenience for users, lawless persons can take advantage of the payment mode. Lawbreakers steal funds from the account of the card holder in a secret-free interactive mode when approaching the IC card of the card holder through an intelligent terminal or a POS machine for accepting bank card business. So that the transaction security of the IC card is poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a IC card for solve the relatively poor problem of transaction security of IC card among the prior art.

The embodiment of the utility model provides a IC card, the IC card includes: a coil and a switch wound by a metal wire;

at least one disconnected part exists in the coil, the first end of each disconnected part is connected with the first end of the corresponding switch, and the second end of each disconnected part is connected with the second end of the corresponding switch.

Further, the switch includes: and the interdigital electrode.

Furthermore, the at least one place is disconnected with two interdigital electrodes, and the two interdigital electrodes are correspondingly arranged on two sides of the IC card.

Further, the IC card includes: a resonant circuit;

the resonance circuit comprises a capacitor, and the coil is an inductor of the resonance circuit.

Further, the IC card further includes: a chip;

the coil is also connected with the chip; the chip is located inside the coil.

Further, the IC card includes: a contactless IC card.

Further, the noncontact IC card includes: a contactless bank card.

The embodiment of the utility model provides a IC card, the IC card includes: a coil and a switch wound by a metal wire; at least one disconnected part exists in the coil, the first end of each disconnected part is connected with the first end of the corresponding switch, and the second end of each disconnected part is connected with the second end of the corresponding switch.

Since in the embodiment of the present invention, there is at least one disconnection in the coil of the IC card, each disconnection is connected to a corresponding switch. Only when the card holder puts all the switches in the closed state, the coil in the IC card can be conducted to serve as an antenna of the IC card, and then the function of subsequent data transmission is realized. The problem that lawbreakers can steal funds of the account of the card holder when approaching the IC card of the card holder through an intelligent terminal or a POS machine which accepts bank card services is solved. The transaction security of the IC card is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an IC card according to embodiment 1 of the present invention;

fig. 2 is a schematic view of an interdigital electrode provided in embodiment 2 of the present invention;

fig. 3 is a schematic view of an IC card according to embodiment 3 of the present invention;

fig. 4 is a schematic diagram of an IC card in an actual scene provided by embodiment 3 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the attached drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

fig. 1 is a schematic structural diagram of an IC card provided in an embodiment of the present invention, the IC card includes: a coil 11 and a switch 12 wound from a metal wire;

at least one break exists in the coil 11, a first end of each break is connected with a first end of the corresponding switch 12, and a second end of each break is connected with a second end of the corresponding switch 12.

The embodiment of the utility model provides an among the IC-card, not prescribing a limit to the quantity of IC-card disconnected department, when guaranteeing transaction security, in order to improve card holder's simple operation nature, can only set up a disconnection, a switch is connected at this department's open position. Two ends of the switch are respectively connected with two ends of the lead at the disconnection part. The switch of the present invention may be any switching element having an open state and a closed state. When the cardholder does not use the IC card, the switch is in the off state, and the coil is not turned on and thus cannot serve as an antenna of the IC card, and the data transmission function cannot be realized. When a cardholder needs to use the IC card, the switch needs to be adjusted from an open state to a closed state, and at the moment, the coil is conducted and can serve as an antenna of the IC card, so that a data transmission function can be realized.

In order to further ensure the safety of the transaction, a plurality of disconnection points can be arranged, and each disconnection point needs to be connected with a switch. When the card holder does not use the IC card, all the switches are in the off state, and when the card holder needs to use the IC card, all the switches need to be adjusted to the on state, and the coils can be conducted, so that the data transmission function is realized. Therefore, the problem that the IC card transaction is unsafe due to the fact that a user carelessly adjusts a certain switch to be in a closed state when the user does not use the IC card can be avoided. Thus further ensuring transaction security.

In fig. 1, only one thick solid line is used instead of the coil, and the number of turns of the coil winding in the actual scene is set according to different IC cards, for example, 12 turns, 15 turns, and the like. Fig. 1 also shows only one opening and one switch, but the present invention does not limit the number of openings and switches as long as there is a switch at each opening.

Example 2:

on the basis of the above embodiments, in the embodiment of the present invention, in order to facilitate the user to control the opening and closing of the switch, the switch includes: and the interdigital electrode.

Fig. 2 is a schematic diagram of an interdigital electrode provided in an embodiment of the present invention, core portions of the interdigital electrode are a plurality of pairs of crossing metal electrodes 01, which are not connected to each other, and a first end 02 and a second end 03 of the interdigital electrode are respectively connected to two ends of a coil disconnection portion. Since the metal electrodes in the interdigital electrodes are not in conduction with each other, the interdigital electrodes are in an off state when no conductor is connected to the metal electrodes in the interdigital electrodes. Because the skin of the human body belongs to the conductor, when the skin of the human body contacts the metal electrode, for example, when the metal electrode is pressed by a finger of a card holder, the metal electrode in the interdigital electrode is turned on, and at the moment, the interdigital electrode is in a closed state.

Therefore, adopt the utility model provides an interdigital electrode acts as the switch, when the card holder does not use the IC-card, as long as guarantee not have the conductor to be connected with the metal electrode in the interdigital electrode, just can guarantee the security of IC-card transaction. When the card holder needs to use the IC card, the card holder only needs to take out the IC card and contact the metal electrodes in the interdigital electrodes with fingers, skin of any part or any conductor. The IC card transaction security is guaranteed, and meanwhile, the card holder is simple and convenient to operate when using the IC card. Adopt the utility model provides an interdigital electrode acts as the switch, can realize the function of IC-card based on the skin perception, and the process is simple and sensitivity is high.

Because the utility model provides an among the IC-card, use the interdigital electrode as the switch, consequently this IC-card is a based on the IC-card of skin perception. When the IC card is used, if the IC card only comprises one interdigital electrode, a card holder uses a finger to press the metal electrode of the interdigital electrode, and the metal electrode of the interdigital electrode is conducted when skin is contacted, so that the IC card has a skin sensing function. If the IC card comprises a plurality of interdigital electrodes, for example, two interdigital electrodes, a cardholder needs to press the metal electrodes of the two interdigital electrodes with two fingers, the two interdigital electrodes sense skin contact and close, and at this time, the coil in the IC card is turned on to serve as an antenna of the IC card, thereby realizing the function of subsequent data transmission.

In addition, in the embodiment of the present invention, the at least one disconnection connects two interdigital electrodes, and the two interdigital electrodes are correspondingly disposed on two sides of the IC card.

Two interdigital electrodes can be connected at each disconnection, the first end of each disconnection is respectively connected with the first ends of the two corresponding interdigital electrodes, and the second ends are respectively connected with the second ends of the two corresponding interdigital electrodes. For connection, wires can be connected to the first ends and the second ends of the two interdigital electrodes respectively, and the wires are connected to the two ends of the disconnected part. And two interdigital electrodes are correspondingly arranged on two sides of the IC card. When a card holder uses the IC card, the finger only needs to touch the interdigital electrode on any side at the disconnection position where the interdigital electrode is arranged aiming at the corresponding position.

The utility model provides a benefit of IC-card still lies in, when certain interdigital electrode trouble or the damage of disconnection department, the cardholder can guarantee the normal use of IC-card through another interdigital electrode of this disconnection department. That is to say, when two interdigital electrodes are arranged at each disconnection position, one interdigital electrode serves as a main interdigital electrode, the other interdigital electrode serves as a standby interdigital electrode, and when the main interdigital electrode fails or is damaged, a card holder touches the standby interdigital electrode through a finger, and the conduction of a coil can still be ensured, so that the normal use of the IC card is ensured, and the reliability of the IC card is improved. It should be noted that, when the space structure of the IC card allows, each disconnected portion may also be connected to more than two interdigital electrodes, so that a plurality of spare interdigital electrodes exist, and the reliability of the IC card is further improved.

Example 3:

in order to ensure the normal use of the IC card, on the basis of the above embodiments, in an embodiment of the present invention, the IC card includes: a resonance circuit 13;

the resonant circuit 13 includes a capacitor, and the coil is an inductor of the resonant circuit.

The IC card includes: a chip 14;

the coil 11 is also connected with the chip 14; the chip 14 is located inside the coil 11.

As shown in fig. 3, the IC card includes a coil 11, and the coil 11 has a break 111 where it is connected to a switch. The IC card also includes a chip 14.

When the IC card is actually used, the radio frequency reader-writer sends a group of electromagnetic waves with fixed frequency to the IC card, the IC card comprises a resonance circuit, the resonance circuit comprises a capacitor, a coil serves as an inductor of the resonance circuit, the frequency of the resonance circuit is the same as the frequency sent by the reader-writer, and therefore the resonance circuit generates resonance under the excitation of the electromagnetic waves, so that the capacitor is internally provided with charges, and the capacitor can serve as a power supply to provide working voltage for the chip, so that the chip can transmit data. Normal use of the IC card is realized based on the coil, the resonance circuit 13, and the chip 14.

The utility model provides a IC-card can be non-contact IC-card, further can be non-contact bank card.

Fig. 4 is a schematic diagram of an IC card in an actual scene provided by an embodiment of the present invention, and for clarity of illustration, a broken portion is located on the right side of a metal wire coil of the IC card in fig. 4, and the broken portion is connected to an interdigital electrode. In practical application, only one place may be disconnected, and one interdigital electrode may be connected thereto, or a plurality of places may be disconnected, and one interdigital electrode may be connected thereto.

A coil is arranged in the IC card, and the first end and the second end of the interdigital electrode are connected with the two ends of the fracture of the coil. The surface of the IC card is provided with a groove for placing the metal electrode part of the interdigital electrode, and the metal electrode part of the interdigital electrode is placed in the groove. The metal electrodes of the interdigital electrodes can be directly touched by a cardholder.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An IC card, characterized in that the IC card comprises: a coil and a switch wound by a metal wire;

at least one disconnected part exists in the coil, the first end of each disconnected part is connected with the first end of the corresponding switch, and the second end of each disconnected part is connected with the second end of the corresponding switch;

the switch includes: and the interdigital electrode.

2. The IC card according to claim 1, wherein said at least one disconnection connects two interdigital electrodes, which are disposed correspondingly on both sides of said IC card.

3. The IC card according to claim 1, characterized in that the IC card further comprises: a resonant circuit;

4. The IC card according to claim 3, further comprising: a chip;

the coil is also connected with the chip; the chip is located inside the coil.

5. The IC card according to any one of claims 1 to 4, characterized in that the IC card comprises: a contactless IC card.

6. The IC card according to claim 5, wherein the noncontact IC card includes: a contactless bank card.