CN103984977A - Double-interface card - Google Patents
Double-interface card Download PDFInfo
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- CN103984977A CN103984977A CN201410228228.6A CN201410228228A CN103984977A CN 103984977 A CN103984977 A CN 103984977A CN 201410228228 A CN201410228228 A CN 201410228228A CN 103984977 A CN103984977 A CN 103984977A
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- double
- interface card
- inductive coil
- chip
- copper sheet
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Abstract
The invention relates to the field of smart cards, in particular to a double-interface card. The double-interface card comprises a chip and an induction coil, wherein the induction coil comprises a first end and a second end, the first end of the induction coil is welded to a first copper sheet, and the second end of the induction coil is welded to a second copper sheet. A positive wire of the chip is welded to the first copper sheet, a negative wire of the chip is welded to the second copper sheet, and the two ends of the induction coil are electrically connected with the positive electrode and the negative electrode of the chip respectively. The double-interface card effectively improves the making efficiency of the double-interface card and lowers the making cost of the double-interface card.
Description
Technical field
The present invention relates to field of intelligent cards, relate in particular to a kind of double-interface card.
Background technology
Double-interface card based on single-chip, integrate the smart card of contact interface and non-contact interface, these two kinds of interfaces are shared same microprocessor, operating system and storer.Double-interface card sheet comprises a microprocessor chip and an inductive coil being connected with microprocessor, and the electromagnetic field being produced by read write line provides energy, by RF-wise, realizes energy supply and data transmission.Owing to providing contact interface and non-contact interface on a card simultaneously, double-interface card set the advantage of contact and double-interface card, there is applicability widely, can meet the demand of, one card for multiple uses for city one-card, almost can be used in all occasions.
The make efficiency of existing double-interface card is low, and in manufacturing process, rejection rate is higher, makes existing double-interface card have higher cost.
Summary of the invention
The invention provides a kind of double-interface card, to reduce the cost of manufacture of double-interface card.
The invention provides a kind of double-interface card, comprise chip and inductive coil, wherein, described inductive coil comprises first end and the second end, and the first end of described inductive coil is welded on the first copper sheet, and the second end of described inductive coil is welded on the second copper sheet;
The positive wire of described chip is welded on described the first copper sheet, and the cathode conductor of described chip is welded on described the second copper sheet, and the two ends of described inductive coil are electrically connected to the both positive and negative polarity of described chip respectively.
In double-interface card provided by the invention the first end of inductive coil and the second end be welded in respectively on the first copper sheet and the second copper sheet on, by the first copper sheet, can efficiently be connected inductive coil and chip with the second copper sheet, before connecting the both positive and negative polarity of inductive coil two ends and chip, the rejection rate of having avoided the manual wire of choosing inductive coil two ends to cause is high and speed is slow, improve the make efficiency of double-interface card, effectively reduced the cost of manufacture of double-interface card.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, does not form limitation of the invention.In the accompanying drawings:
Fig. 1 is the cross-sectional schematic of a kind of reversible khaki of providing in the embodiment of the present invention;
Fig. 2 is the schematic diagram of a kind of double-interface card chips of providing in the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is carried out more in detail and complete explanation.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not full content.It should be noted that, in instructions and claims, be used for representing that all numerical parameters of size (as long and wide) are approximate value.
Fig. 1 is the cross-sectional schematic of a kind of double-interface card of providing in the embodiment of the present invention, and Fig. 2 is the schematic diagram of a kind of double-interface card chips of providing in the embodiment of the present invention.The schematic diagram of the first surface that the chip shown in Fig. 1 is the chip that provides in the embodiment of the present invention, the schematic diagram of second that the chip shown in Fig. 2 is the chip that provides in the embodiment of the present invention are provided.
As depicted in figs. 1 and 2, the double-interface card that the embodiment of the present invention provides comprises chip 11 and inductive coil 12, wherein, described inductive coil 12 comprises first end 121 and the second end 122, and the first end 121 of described inductive coil 12 is welded on the first copper sheet 13, the second end 122 of described inductive coil 12 is welded on the second copper sheet 14; The positive wire 111 of described chip 11 is welded on described the first copper sheet 13, and the cathode conductor 112 of described chip 11 is welded on described the second copper sheet 14, and the two ends of described inductive coil 12 are electrically connected to the both positive and negative polarity of described chip 11 respectively.Concrete, the first end 121 of described inductive coil 12 is electrically connected to the positive wire 111 of described chip 11, and the second end 122 of described inductive coil 12 is electrically connected to the cathode conductor 112 of described chip 11.
While making existing double-interface card, before connecting inductive coil and chip, must manual choose the two ends of inductive coil, the specific requirement of manual take-up is as follows: first with slotter, two lead risers that are embedded in the middle inductive coil of double-interface card sheet are milled out, from groove milling position, choose lead-in wire again, and will go between neatly forward on one side, wherein, wire length be take 1.5-2.0cm as qualified; Take-up is complete, and card is put successively, and the direction of every card is consistent, and every card separates with the scraps of paper.Therefore, in existing double-interface card manufacturing process, before connecting inductive coil and chip, need manual take-up, make the make efficiency of existing double-interface card low; In addition, in manual take-up process, product fraction defective is high, makes the fabrication cost of existing double-interface card higher.In the double-interface card that the embodiment of the present invention provides, inductive coil 12 and chip 11 are by the first copper sheet 13 and 14 connections of the second copper sheet, before connecting inductive coil 12 and chip 11, the rejection rate of having avoided the manual wire of choosing inductive coil 12 two ends to cause is high and speed is slow, improve the make efficiency of double-interface card, effectively reduced the cost of manufacture of double-interface card.
As shown in Figure 2, the first copper sheet 13 described in the double-interface card that the embodiment of the present invention provides and described the second copper sheet 14 are all arranged on described chip.Concrete, shown in the first copper sheet 13 be arranged at positive wire 111 sides of described chip, described the second copper sheet 14 is arranged at cathode conductor 112 sides of described chip.
Described double-interface card also comprises encapsulation card (not shown), and described encapsulation card is rectangle.The length range of described encapsulation card is: 85.47-85.72 millimeter; The width range of described encapsulation card is: 53.92-54.03 millimeter.
The specification of the encapsulation card of the double-interface card that the present embodiment provides is consistent with the specification that encapsulates card in existing double-interface card, can dwindle the area of double-interface card to keep the portability of double-interface card, the encapsulation card of the double-interface card that the present embodiment provides can be existing double-interface card encapsulation card.Therefore, can adopt in the double-interface card providing in equipment making the present invention of existing making encapsulation card and encapsulate card, effectively avoid the increase of double-interface card cost of manufacture.
The static resonance frequency range of double-interface card provided by the invention is 15.60MHz～16.20MHz, the static resonance frequency that is double-interface card in the present invention is consistent with the frequency range of the card reader of existing double-interface card, makes inductance in LC series resonant circuit to produce resonance with the electromagnetic wave receiving from card reader.The induction electromotive force producing due to inductive coil 12 provides power supply for double-interface card, and the area of the electromotive force value of inductive coil 12 and the number of turn of inductive coil 12 and inductive coil 12 is proportional.
Described in the two interfaces that provide in the embodiment of the present invention, the number of turn of inductive coil 12 is at least 5.The double-interface card that the embodiment of the present invention provides comprises two chips and two inductive coils, when the number of turn of described inductive coil 12 is 5 circle left and right, make the area of double-interface card in the present invention can not surpass the area of existing double-interface card, thereby save space, reduce double-interface card size, keep the portability of double-interface card; In addition, along with the area of inductive coil 12 reduces, the area of the encapsulation card of double-interface card can reduce, effectively to reduce production material cost.It should be noted that, can improve by dwindling the area of double-interface card the portability of double-interface card.In order to keep induction electromotive force, when dwindling the area of double-interface card, the number of turn of described inductive coil 12 needs corresponding raising.
Described inductive coil 12 is comprised of insulated copper wire, and wherein, described insulated copper wire comprises copper wire, and the diameter of described copper wire is 0.1 millimeter.Insulated copper wire evenly and hermetically wraps up one deck insulating material and forms in copper wire periphery, can prevent electric conductor and the extraneous accidents such as causing electric leakage, short circuit and electric shock that contacts, wherein insulating material can be PVC (Polyvinylchloride, Polyvinyl chloride polymer), resin, plastics and silicon rubber etc.
The spacing of two adjacent rings inductive coil is 0.3 millimeter, and in described inductive coil 12, the spacing between two adjacent rings inductive coil is 0.3 millimeter.The spacing of two adjacent rings inductive coil is larger, and the static resonance frequency of double-interface card is larger, and the spacing of two adjacent rings inductive coil is that 0.3 millimeter makes non-contacting static resonance frequency provided by the invention be not less than 15MHz.The frequency of the card reader of existing double-interface card is 13.56～18MHz, and the data in the double-interface card providing in the present embodiment can be provided existing double-interface card card reader.
Described in the double-interface card providing in the embodiment of the present invention, chip 11 is for recording accounts information, described chip 11 comprises microprocessor, storer, logical block and Transmit Receive Unit, wherein, described logical block comprises LC series resonant circuit and the first electric capacity, described Transmit Receive Unit receives the electromagnetic wave that card reader sends, described LC series resonant circuit and described electromagnetic wave produce resonance, are described the first capacitor charging, and described the first electric capacity provides voltage as power supply for described chip.
The positive wire 111 of the double-interface card chips 11 that the present embodiment provides and cathode conductor 112 are welded in respectively on the first copper sheet 13 and the second copper sheet 14, and the first end 121 of inductive coil 12 is welded on the first copper sheet 13, the second end 122 of inductive coil 12 is welded on the second copper sheet 14, and the both positive and negative polarity of chip 11 and the two ends of inductive coil 12 are electrically connected to.The double-interface card providing in the embodiment of the present invention, fabrication efficiency is high and fabrication cost is lower.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and to those skilled in the art, the present invention can have various changes and variation.All any modifications of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included within spirit of the present invention and principle.
Claims (10)
1. a double-interface card, is characterized in that, comprising: chip and inductive coil, wherein, described inductive coil comprises first end and the second end, and the first end of described inductive coil is welded on the first copper sheet, and the second end of described inductive coil is welded on the second copper sheet;
The positive wire of described chip is welded on described the first copper sheet, and the cathode conductor of described chip is welded on described the second copper sheet, and the two ends of described inductive coil are electrically connected to the both positive and negative polarity of described chip respectively.
2. double-interface card according to claim 1, is characterized in that, the number of turn of described inductive coil is at least 5.
3. double-interface card according to claim 1, is characterized in that, described double-interface card also comprises encapsulation card, and described encapsulation card is rectangle.
4. double-interface card according to claim 3, is characterized in that, the length range of described encapsulation card is: 85.47-85.72 millimeter; The width range of described encapsulation card is: 53.92-54.03 millimeter.
5. double-interface card according to claim 1, its feature is, the spacing of two adjacent rings inductive coil is 0.3 millimeter.
6. double-interface card according to claim 1, is characterized in that, described inductive coil is comprised of insulated copper wire, and wherein, described insulated copper wire comprises copper wire, and the diameter of described copper wire is 0.1 millimeter.
7. double-interface card according to claim 3, is characterized in that, described the first copper sheet and described the second copper sheet are all arranged on described chip.
8. double-interface card according to claim 1, is characterized in that, the positive wire of described chip and the cathode conductor of described chip are copper wire, and the diameter of described copper wire is 0.1 millimeter.
9. double-interface card according to claim 1, is characterized in that, the static resonance frequency range of described double-interface card is 13.56～16.20MHz.
10. double-interface card according to claim 1, it is characterized in that, described chip comprises microprocessor, storer, logical block and Transmit Receive Unit, wherein, described logical block comprises LC series resonant circuit and the first electric capacity, described Transmit Receive Unit receives the electromagnetic wave that card reader sends, described LC series resonant circuit and described electromagnetic wave produce resonance, for described the first capacitor charging, described the first electric capacity provides voltage for described microprocessor, described storer and described logical block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228228.6A CN103984977A (en) | 2014-05-27 | 2014-05-27 | Double-interface card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228228.6A CN103984977A (en) | 2014-05-27 | 2014-05-27 | Double-interface card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103984977A true CN103984977A (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410228228.6A Pending CN103984977A (en) | 2014-05-27 | 2014-05-27 | Double-interface card |
Country Status (1)
| Country | Link |
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| CN (1) | CN103984977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030832A (en) * | 2017-04-25 | 2017-08-11 | 临沂优优木业股份有限公司 | A kind of timber product and its manufacturing process |
Citations (6)
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|---|---|---|---|---|
| CN1213449A (en) * | 1996-01-17 | 1999-04-07 | 格姆普拉斯有限公司 | Contactless electronic module for card of label |
| CN1369854A (en) * | 2001-01-31 | 2002-09-18 | 佳能株式会社 | Semiconductor device and its mfg. method and electronic camera installation |
| CN101420070A (en) * | 2008-11-20 | 2009-04-29 | 北京握奇数据系统有限公司 | Connection method for antenna and intelligent card and double interface smart card |
| EP2341472A1 (en) * | 2009-12-22 | 2011-07-06 | Gemalto SA | Method for manufacturing by transfer of an electronic device comprising a communication interface |
| CN202306617U (en) * | 2011-10-19 | 2012-07-04 | 盛华金卡智能科技（深圳）有限公司 | Synthesized card with conducting strips |
| CN203858659U (en) * | 2014-05-27 | 2014-10-01 | 江苏远洋数据股份有限公司 | Double interface card |
-
2014
- 2014-05-27 CN CN201410228228.6A patent/CN103984977A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213449A (en) * | 1996-01-17 | 1999-04-07 | 格姆普拉斯有限公司 | Contactless electronic module for card of label |
| CN1369854A (en) * | 2001-01-31 | 2002-09-18 | 佳能株式会社 | Semiconductor device and its mfg. method and electronic camera installation |
| CN101420070A (en) * | 2008-11-20 | 2009-04-29 | 北京握奇数据系统有限公司 | Connection method for antenna and intelligent card and double interface smart card |
| EP2341472A1 (en) * | 2009-12-22 | 2011-07-06 | Gemalto SA | Method for manufacturing by transfer of an electronic device comprising a communication interface |
| CN202306617U (en) * | 2011-10-19 | 2012-07-04 | 盛华金卡智能科技（深圳）有限公司 | Synthesized card with conducting strips |
| CN203858659U (en) * | 2014-05-27 | 2014-10-01 | 江苏远洋数据股份有限公司 | Double interface card |
Non-Patent Citations (1)
| Title |
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| 张亮: "《现代移动通信技术与应用》", 31 January 2014, 清华大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030832A (en) * | 2017-04-25 | 2017-08-11 | 临沂优优木业股份有限公司 | A kind of timber product and its manufacturing process |
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Application publication date: 20140813 |