CN210742992U

CN210742992U - Metal chip card capable of double-sided radio frequency communication

Info

Publication number: CN210742992U
Application number: CN201922193096.9U
Authority: CN
Inventors: 刘大凯
Original assignee: Dongguan Xiecheng Zhiyuan Smart Card Technology Co Ltd
Current assignee: Dongguan Xiecheng Zhiyuan Smart Card Technology Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-06-12
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a metal chip card capable of double-sided radio frequency communication, which comprises a metal card body, wherein the metal card body is formed by laminating two metal plates, and a first main control chip and a second main control chip are respectively arranged on the upper and lower metal plates, the utility model provides a metal chip card capable of double-sided radio frequency communication, which realizes double-sided radio frequency communication by arranging the upper and lower metal plates, and respectively arranging a first main control chip and a second main control chip on the upper and lower metal plates, and simultaneously arranging coils on the upper and lower metal plates respectively, thereby realizing double-sided independent power supply and signal receiving; the utility model is further provided with a metal mesh shielding layer in the bonding layer; further avoiding signal interference between the first main control chip and the second main control chip; the utility model is further provided with a power module in the middle of the metal card body, and the power module is respectively connected with a main control chip I and a main control chip II through power supply wires; and active power supply is realized.

Description

Metal chip card capable of double-sided radio frequency communication

Technical Field

The utility model relates to a metal chip card technical field specifically is a but metal chip card of two-sided radio frequency communication.

Background

IC cards are english acronyms of integrated circuit cards, and are also called smart cards, microchip cards, and the like in some countries. A special integrated circuit chip is embedded in a PVC (or ABS and the like) plastic substrate conforming to the ISO7816 standard and packaged into a card form similar to a magnetic card in appearance, namely an IC card is manufactured. Of course, the button can be packaged into special shapes such as buttons, keys, ornaments and the like.

The IC card was originally proposed by japanese. In 12 months in 1969, a method for producing a safe and reliable credit card was proposed in mourning in Japan and was patented in 1970, when called an ID card. In 1974, loran morrey in france invented and patented plastic cards with integrated circuit chips, which were earlier IC cards. In 1976, the first IC card in the world was developed by the company boolean (Bull) france. In 1984, PTT of france used IC cards for telephone cards, which were unexpectedly successful because of their good security and reliability. Subsequently, a series of international standards and specifications are made for the international standard organization and the joint technical committee of the international electrotechnical commission, and the research and development of the IC card are greatly promoted;

at present, a metal chip card appears along with the development of science and technology, however, the metal chip card is limited by metal materials at present, and double-sided radio frequency communication cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but metal chip card of two-sided radio frequency communication to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a metal chip card capable of realizing double-sided radio frequency communication comprises a metal card body, wherein the metal card body is formed by laminating two metal plates, a first main control chip and a second main control chip are respectively arranged on the upper side metal plate and the lower side metal plate, coils are respectively arranged on the upper side metal plate and the lower side metal plate, and the coils are arranged along the edges of the metal plates; the two coils are correspondingly connected with the first main control chip and the second main control chip respectively.

When the double-sided radio frequency communication device works, the metal plates on the upper side and the lower side are respectively provided with the first main control chip and the second main control chip to realize double-sided radio frequency communication, and meanwhile, the metal plates on the upper side and the lower side are respectively provided with the coils to realize double-sided independent power supply and signal receiving.

As a further aspect of the present invention: the first main control chip and the second main control chip are arranged in a staggered mode, and signal interference between the first main control chip and the second main control chip is avoided.

As a further aspect of the present invention: the first main control chip comprises a first CPU, a first NFC module and a first memory unit; the second main control chip comprises a second CPU, a second NFC module and a second memory unit; the first main control chip and the second main control chip are in bidirectional wireless communication connection through the first NFC module and the second NFC module.

As a further aspect of the present invention: the metal plates are bonded together through the bonding layer; two metal sheets are connected through the viscose, and the two metal sheet outsides are provided with the metal frame, improve the wholeness.

As a further aspect of the present invention: a metal mesh shielding layer is arranged in the bonding layer; and further avoiding signal interference between the first main control chip and the second main control chip.

As a further aspect of the present invention: the middle of the metal card body is provided with a power supply module, and the power supply module is connected with the first main control chip and the second main control chip through power supply wires respectively.

Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:

the utility model provides a but metal chip card of two-sided radio frequency communication, the utility model discloses a both sides metal sheet about setting up sets up main control chip one and main control chip two on the upper and lower both sides metal sheet respectively, realizes two-sided radio frequency communication, is provided with the coil on the upper and lower both sides metal sheet respectively simultaneously, realizes two-sided independent power supply and received signal.

The utility model is further provided with a metal mesh shielding layer in the bonding layer; and further avoiding signal interference between the first main control chip and the second main control chip.

The utility model is further provided with a power module in the middle of the metal card body, and the power module is respectively connected with a main control chip I and a main control chip II through power supply wires; and active power supply is realized.

Drawings

Fig. 1 is a schematic structural diagram of a metal chip card capable of two-sided radio frequency communication.

FIG. 2 is a cross-sectional view of a metal chip card capable of two-sided RF communication.

FIG. 3 is a block diagram of a control system of a metal chip card capable of two-sided RF communication.

In the figure: 1. a metal card body; 101. a metal plate; 102. an adhesive layer; 103. a metal mesh shielding layer; 2. a coil; 3. a first main control chip; 4. a second main control chip; 5. a power supply module; 6. A power supply lead; 7. a first NFC module; 8. a first CPU; 9. a first memory unit; 10. a second CPU; 11. a second NFC module; 12. and a second memory unit.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a metal chip card capable of two-sided radio frequency communication includes a metal card body 1, wherein the metal card body 1 is formed by two metal plates 101, a first main control chip 3 and a second main control chip 4 are respectively disposed on the upper and lower metal plates 101, a coil 2 is respectively disposed on the upper and lower metal plates 101, and the coil 2 is disposed along the edge of the metal plate 101; the two coils 2 are correspondingly connected with a first main control chip 3 and a second main control chip 4 respectively; the first main control chip 3 and the second main control chip 4 are arranged in a staggered mode, so that signal interference between the first main control chip 3 and the second main control chip 4 is avoided; the first main control chip 3 comprises a first CPU 8, a first NFC module 7 and a first memory unit 9; the second main control chip 4 comprises a second CPU 10, a second NFC module 11 and a second memory unit 12; the first main control chip 3 and the second main control chip 4 are in bidirectional wireless communication connection through the first NFC module 7 and the second NFC module 11; the metal plates 101 are bonded through the bonding layer 102; two metal sheets 101 pass through the viscose and connect, and two metal sheet 101 outsides are provided with the metal frame, improve the wholeness.

A metal mesh shielding layer 103 is arranged in the bonding layer 102; further avoiding signal interference between the first main control chip 3 and the second main control chip 4; the middle of the metal card body 1 is provided with a power module 5, and the power module 5 is respectively connected with a first main control chip 3 and a second main control chip 4 through power supply wires 6.

The utility model discloses a theory of operation is: when the double-sided radio frequency communication device works, the upper metal plate 101 and the lower metal plate 101 are respectively provided with the first main control chip 3 and the second main control chip 4, double-sided radio frequency communication is achieved, and meanwhile, the upper metal plate 101 and the lower metal plate 101 are respectively provided with the coils 2, so that double-sided independent power supply and signal receiving are achieved.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A metal chip card capable of realizing double-sided radio frequency communication comprises a metal card body (1) and is characterized in that the metal card body (1) is formed by laminating two metal plates (101), a first main control chip (3) and a second main control chip (4) are respectively arranged on the metal plates (101) on the upper side and the lower side, coils (2) are respectively arranged on the metal plates (101) on the upper side and the lower side, and the coils (2) are arranged along the edges of the metal plates (101); the two coils (2) are respectively and correspondingly connected with the first main control chip (3) and the second main control chip (4).

2. The metal chip card capable of double-sided radio frequency communication according to claim 1, wherein the first main control chip (3) and the second main control chip (4) are arranged in a staggered manner.

3. The metal chip card capable of double-sided radio frequency communication according to claim 2, wherein the first master control chip (3) comprises a first CPU (8), a first NFC module (7) and a first memory unit (9); the second main control chip (4) comprises a second CPU (10), a second NFC module (11) and a second memory unit (12).

4. The metal chip card capable of double-sided radio frequency communication according to any one of claims 1 to 3, wherein the metal plates (101) are bonded together by an adhesive layer (102); the two metal plates (101) are connected through viscose glue, and metal frames are arranged on the outer sides of the two metal plates (101).

5. The metal chip card capable of double-sided radio frequency communication according to claim 4, wherein a metal mesh shielding layer (103) is arranged in the adhesive layer (102).

6. The metal chip card capable of double-sided radio frequency communication according to claim 4, wherein a power module (5) is arranged in the middle of the metal card body (1), and the power module (5) is respectively connected with the first main control chip (3) and the second main control chip (4) through a power supply wire (6).