CN203858659U - Double interface card - Google Patents
Double interface card Download PDFInfo
- Publication number
- CN203858659U CN203858659U CN201420275930.3U CN201420275930U CN203858659U CN 203858659 U CN203858659 U CN 203858659U CN 201420275930 U CN201420275930 U CN 201420275930U CN 203858659 U CN203858659 U CN 203858659U
- Authority
- CN
- China
- Prior art keywords
- double
- interface card
- inductive coil
- chip
- copper sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- 230000001939 inductive effect Effects 0.000 claims description 50
- 238000005538 encapsulation Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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- Credit Cards Or The Like (AREA)
Abstract
The utility model relates to the field of intelligent cards, especially to a double interface card. The double interface card comprises a chip and an induction coil. 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. The anode of the chip is welded to the first copper sheet, and the cathode of the chip is welded the second copper sheet. Thus, the two ends of the chip are respectively in electric connection with the anode and the cathode of the chip. The making efficiency of the double interface card is effectively improved, and making cost of the double interface card is reduced.
Description
Technical field
The utility model relates to field of intelligent cards, relates 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, realizes energy supply and data transmission by RF-wise.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 city one-card, one card for multiple uses, 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.
Utility model content
The utility model provides a kind of double-interface card, to reduce the cost of manufacture of double-interface card.
The utility model 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, 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 with the both positive and negative polarity of described chip respectively.
In the double-interface card that the utility model provides 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, can efficiently be connected inductive coil and chip by the first copper sheet 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.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a part of the present utility model, does not form restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the cross-sectional schematic of a kind of reversible khaki of providing in the utility model embodiment;
Fig. 2 is the schematic diagram of a kind of double-interface card chips of providing in the utility model embodiment.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is carried out more in detail and complete explanation.Be understandable that, specific embodiment described herein is only for explaining the utility model, but not to restriction of the present utility model.It also should be noted that, for convenience of description, in accompanying drawing, only show the part relevant to the utility model 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 utility model embodiment, and Fig. 2 is the schematic diagram of a kind of double-interface card chips of providing in the utility model embodiment.The schematic diagram of the first surface that the chip shown in Fig. 1 is the chip that provides in the utility model embodiment, the schematic diagram of second that the chip shown in Fig. 2 is the chip that provides in the utility model embodiment are provided.
As depicted in figs. 1 and 2, the double-interface card that the utility model embodiment 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 with the both positive and negative polarity of described chip 11 respectively.Concrete, the first end 121 of described inductive coil 12 is electrically connected with the positive wire 111 of described chip 11, and the second end 122 of described inductive coil 12 is electrically connected with 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 inductive coil in the middle of double-interface card sheet are milled out, choose lead-in wire from groove milling position again, and will go between neatly forward on one side, wherein, wire length is taking 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 utility model embodiment 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 utility model embodiment 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 utility model 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 the double-interface card that the utility model provides is 15.60MHz～16.20MHz, the static resonance frequency that is double-interface card in the utility model 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 utility model embodiment, the number of turn of inductive coil 12 is at least 5.The double-interface card that the utility model embodiment 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 utility model can not exceed 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, in the time dwindling the area of double-interface card, the number of turn of described inductive coil 12 needs corresponding raising.
Described inductive coil 12 is made up 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 not less than 15MHz for 0.3 millimeter makes the non-contacting static resonance frequency that the utility model provides.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 utility model embodiment, 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, makes the both positive and negative polarity of chip 11 and the electrical connection of the two ends of inductive coil 12.The double-interface card providing in the utility model embodiment, fabrication efficiency is high and fabrication cost is lower.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and to those skilled in the art, the utility model can have various changes and variation.All any amendments of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model 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 with 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 made up 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 |
|---|---|---|---|
| CN201420275930.3U CN203858659U (en) | 2014-05-27 | 2014-05-27 | Double interface card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420275930.3U CN203858659U (en) | 2014-05-27 | 2014-05-27 | Double interface card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858659U true CN203858659U (en) | 2014-10-01 |
Family
ID=51608502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420275930.3U Expired - Lifetime CN203858659U (en) | 2014-05-27 | 2014-05-27 | Double interface card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984977A (en) * | 2014-05-27 | 2014-08-13 | 江苏远洋数据股份有限公司 | Double-interface card |
-
2014
- 2014-05-27 CN CN201420275930.3U patent/CN203858659U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984977A (en) * | 2014-05-27 | 2014-08-13 | 江苏远洋数据股份有限公司 | Double-interface card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
|
| CX01 | Expiry of patent term |