CN104993216A - NFC antenna structure for metal back cover mobile phone - Google Patents
NFC antenna structure for metal back cover mobile phone Download PDFInfo
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- CN104993216A CN104993216A CN201510422616.2A CN201510422616A CN104993216A CN 104993216 A CN104993216 A CN 104993216A CN 201510422616 A CN201510422616 A CN 201510422616A CN 104993216 A CN104993216 A CN 104993216A
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Abstract
The invention relates to an NFC antenna structure for a metal back cover mobile phone. An NFC antenna with a coil form is arranged in a metal back cover of a mobile phone. The metal back cover of the mobile phone is provided with a concave groove used for blocking a vertex of the metal back cover of the mobile phone and a hole used for arranging a camera. The NFC antenna communicates with an external reader-writer antenna via the concave groove and the hole based on magnetic field coupling. The NFC antenna comprises an NFC coil and a ferrite magnetic sheet. The concave groove starts at one side of the metal back cover of the mobile phone and ends at the opposite side of the metal back cover of the mobile phone. The concave groove comprises two transverse grooves and two vertical grooves. The NFC antenna employs the opening for arranging the camera in the metal back cover of the mobile phone for radiation and the metal back cover of the mobile phone is provided with the concave groove, so that the vortex of the metal back cover is prevented from causing magnetic field interference to the NFC antenna and the excellent electrical performance of the NFC antenna and the reader-writer can be guaranteed during work.
Description
Technical field
The present invention relates to a kind of NFC antenna structure being applicable to mobile phone mobile payment, belong to antenna technical field.
Background technology
At present, the development trend of mobile phone is towards slimming, multifunction development.Because the thickness of mobile phone is constantly thinning, its mechanical strength reduces greatly, and manufacturer and user worry under external force, and the back plastic cover of mobile phone can be held and be can't stand external force and deform, and destroys profile attractive in appearance, even can affect the normal work of mobile phone.Therefore, as the substitute of mobile phone back plastic cover, mechanical strength is better, vision and the higher metal back cover of tactile experience just become first-selected.
The thickness of mobile phone is while constantly thinning, and communication function is but being on the increase, and except 2G, 3G, 4G communication function, the function such as bluetooth, WIFI, GPS is also progressively added on mobile phone.Nearly 2 years, the NFC (Near Field Communication, near field communication technology) for mobile-phone payment function had also progressively been loaded on mobile phone.NFC technology is by non-contact radio-frequency identification and the Technology Integration that interconnects, and the NFC antenna being loaded in mobile terminal inside utilizes magnetic Field Coupling to communicate with the read write line being loaded with coil.
But, if mobile phone employs totally enclosed metal back cover, metal back cover can have an impact to the normal work of NFC antenna, the communication distance of mobile-phone payment function is made not reach standard-required, therefore be necessary to design a solution, reduce mobile phone metal back cover to the impact of NFC antenna, mobile phone mobile payment function is normally used.
Summary of the invention
The object of this invention is to provide a kind of NFC antenna structure being applicable to the function admirable of all-metal back of the body lid mobile phone.
Object of the present invention is achieved through the following technical solutions:
For the NFC antenna structure of metal back cover mobile phone, feature is: the NFC antenna being provided with coil form in mobile phone metal back cover inside, mobile phone metal back cover has spill fluting and perforate, described NFC antenna is slotted by spill and is utilized magnetic Field Coupling to realize communicating between perforate with external reader antenna.
Further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described NFC antenna comprises NFC coil and ferrimagnetism sheet, and NFC coil and ferrimagnetism sheet are attached at one.
Further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, the element coiling that described NFC coil configures around tapping, NFC coil around middle body size be greater than the size of element, ferrimagnetism sheet core arranges the opening being greater than element outline, and element is through opening.
Further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described NFC coil is the plane annular wire coil that on FPC base material, ecto-entad successively coiling is formed, and described NFC coil is rectangle, square, circle or oval.
Further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, the one side of described FPC base material attaches the ferrimagnetism sheet identical with its profile, and the two is overlapping.
Further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described perforate is rectangle, square, circle or oval, and tapping not only may be used for configuring camera, also can configure other mobile phone component.
Again further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described spill fluting originates in a limit of mobile phone metal back cover, end at a relative limit of mobile phone metal back cover, spill fluting is vertically slotted by two transversal slottings and two and is formed, two vertical flutings originate in the end points being positioned at mobile phone metal back cover mid portion of two transversal slottings respectively, end at the edge of perforate, the first transversal slotting, the second transversal slotting and first are vertically slotted, second vertically to slot formation one spill.
Again further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described two transversal slottings are the curve shape of horizontal linear shape, oblique line shape or horizontal direction.
Again further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, the second transversal slotting of the latter half of described spill fluting ends at a relative limit of mobile phone metal back cover, or ends at other adjacent limit of mobile phone metal back cover.
Again further, the above-mentioned NFC antenna structure for metal back cover mobile phone, wherein, described two curve shapes of vertically slotting in vertical straight wire shaped, oblique line shape or vertical direction.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
The present invention designs uniqueness, NFC antenna utilizes the opening arranging camera in mobile phone metal back cover to carry out radiation, mobile phone metal back cover is arranged spill fluting simultaneously, effectively reduce metal back cover eddy current produces magnetic field interference to NFC antenna, thus ensure, when working between NFC antenna and read write line, there is good electric property.It is simple for structure, attractive in appearance, can be widely used in having on the mobile phone of metal back cover, ensures the normal work of mobile phone mobile payment function.Being rated as the good technology with novelty, creativeness, practicality, is the new design of a practicality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: position relationship schematic diagram between the parts of decomposition texture of the present invention;
Fig. 2: a kind of schematic front view of spill notching construction in mobile phone metal back cover of the present invention;
The schematic rear view of Fig. 3: Fig. 2 mobile phone metal back cover;
Fig. 4: the schematic front view of another kind of notching construction in mobile phone metal back cover of the present invention;
Fig. 5: the schematic front view of circular arc spill notching construction in mobile phone metal back cover of the present invention;
Fig. 6: the schematic front view of del spill notching construction in mobile phone metal back cover of the present invention;
Fig. 7: the schematic front view of inverted trapezoidal spill notching construction in mobile phone metal back cover of the present invention;
Embodiment
As shown in Figures 1 to 3, for the NFC antenna structure of metal back cover mobile phone, comprise mobile phone metal back cover 1, camera 2, NFC antenna 3 and cell phone mainboard 4, the NFC antenna 3 of coil form is provided with in mobile phone metal back cover inside, mobile phone metal back cover has the spill fluting 5 for blocking eddy current in mobile phone metal back cover and the perforate 6 for configuring camera 2, spill fluting 5 blocks the eddy current in mobile phone metal back cover, thus reduce metal back cover to the interference of NFC antenna 3, NFC antenna 3 is by spill fluting 5 and utilize magnetic Field Coupling to realize communicating between perforate 6 with external reader antenna, realize mobile-phone payment function.
Wherein, NFC antenna 3 comprises NFC coil 31 and ferrimagnetism sheet 32, NFC coil 31 is attached at one with ferrimagnetism sheet 32.NFC coil 31 around camera 2 coiling at perforate 6 place, NFC coil 31 around middle body size be greater than the size of camera 2, ferrimagnetism sheet 32 core arranges the opening slightly larger than camera 2 outline, makes camera 2 pass this opening.NFC coil 31 is the plane annular wire coil that on FPC base material, ecto-entad successively coiling is formed; NFC coil 31 is rectangle, square, circle or oval; The one side of FPC base material attaches the ferrimagnetism sheet 32 identical with its profile, and the two is overlapping.
Spill fluting 5 originates in a limit of mobile phone metal back cover 1, end at a relative limit of mobile phone metal back cover 1, spill fluting 5 is by two transversal slottings (the first transversal slotting 51, second transversal slotting 52) and two (the first vertical flutings 53 of vertically slotting, second vertically slots 54) form, transversal slotting is horizontal direction, vertical fluting is vertical direction, first vertical fluting 53 originates in the end points being positioned at mobile phone metal back cover mid portion of the first transversal slotting 51, second vertical fluting 54 originates in the end points being positioned at mobile phone metal back cover mid portion of the second transversal slotting 52, end at the edge of perforate 6, first transversal slotting 51, second transversal slotting 52 and first vertically slots 53, second vertical fluting 54 forms spills.
First transversal slotting 51 and the curve shape of the second transversal slotting 52 in horizontal linear shape, oblique line shape or horizontal direction, the first transversal slotting 51 also can be connected to form a level with the second transversal slotting 52 and to slot entirety.Second transversal slotting 52 of the latter half of spill fluting 5 ends at a relative limit of mobile phone metal back cover, or ends at other adjacent limit of mobile phone metal back cover.
First vertical fluting 53 and the curve shape of the second vertical fluting 54 in vertical straight wire shaped, oblique line shape or vertical direction.
Perforate 6 is rectangle, square, circle or oval, and tapping not only may be used for configuring camera 2, also may be used for configuring other mobile phone component.
During embody rule, the alternating current in NFC coil 31 can produce magnetic field, and this magnetic field realizes communicating with the read write line outside mobile phone by opening 6.The magnetic field produced by NFC coil 31 can produce eddy current in mobile phone metal back cover 1, and this eddy current can weaken the magnetic field produced by NFC coil 31, therefore can shorten communication distance; And the effect of spill fluting 5 blocks the eddy current produced in mobile phone metal back cover, thus reduce the generation of disturbing magnetic field, thus ensure the normal operating distance of NFC antenna 3.
As Fig. 4, design needs according to mobile phone ID, camera 2 may be designed to be located at the top of the first transversal slotting 51 and the second transversal slotting 52.Normally work to realize NFC antenna, first vertically fluting 53 and second vertically fluting 54 can be designed to the top being positioned at the first transversal slotting 51 and the second transversal slotting 52, then first vertically fluting 53, second vertically fluting 54 and the first transversal slotting 51, second transversal slotting 52 form convex and to slot shape.
As Fig. 5, two vertical flutings of spill fluting 5 can be curved shape, first vertical fluting 53 and the second vertical fluting 54 are circular arc, circular arc first vertically fluting 53 and second vertically fluting 54 and the common spills formed of the first transversal slotting 51, second transversal slotting 52 slot 5 effect be block the eddy current produced in mobile phone metal back cover, thus reduce the generation of disturbing magnetic field, thus ensure that the normal operating distance of NFC antenna 3.
As Fig. 6, two vertical flutings of spill fluting 5 can be tilted shape, formation del is slotted, del first vertically fluting 53, second vertically fluting 54 and the common spill formed of the first transversal slotting 51, second transversal slotting 52 slot 5 effect be block the eddy current produced in mobile phone metal back cover, thus reduce the generation of disturbing magnetic field, thus ensure that the normal operating distance of NFC antenna 3.
As Fig. 7, two vertical flutings of spill fluting 5 can be tilted shape, formation inverted trapezoidal is slotted, inverted trapezoidal first vertically fluting 53, second vertically fluting 54 and the common spill formed of the first transversal slotting 51, second transversal slotting 52 slot 5 effect be block the eddy current produced in mobile phone metal back cover, thus reduce the generation of disturbing magnetic field, thus ensure that the normal operating distance of NFC antenna 3.
In addition, it should be noted that, also spill can be slotted 5 two vertically fluting be combined into other shape, for blocking the eddy current that mobile phone metal back cover produces, reducing disturbing magnetic field, promoting the communication distance of NFC antenna 3.
For reducing the interference of mobile phone metal back cover 1 pair of NFC antenna 3, mobile phone metal back cover arranges spill fluting, spill fluting stops eddy current in mobile phone metal back cover on the impact of NFC antenna effectively, thus ensure the communication distance between NFC antenna 3 and read write line, guarantee the normal work of mobile phone mobile payment function.
NFC antenna 3 is arranged between mobile phone metal shell on the back and mainboard, for reducing cell phone mainboard to the interference of NFC antenna, in NFC antenna on the side of mainboard, attaching the ferrimagnetism sheet 32 identical with NFC antenna outline and supporting the use.
NFC antenna 3 is adopted the wire coil coiling of the low-resistivities such as argent, copper, aluminium to form by multiturn.The multiturn wire coil of NFC antenna can rectangular coiling or circle, oval coiling.The coil base material FPC of NFC antenna and the core of ferrimagnetism sheet arrange the opening slightly larger than camera outer profile size, make camera 2 pass this opening, and make camera be in NFC antenna wire coil central part.NFC antenna can be attached on the base material around camera, also can attach to inside mobile phone metal back cover and use.
Mobile phone metal shell on the back arranges spill fluting 5, and one end of this spill fluting 5 originates in a limit of mobile phone metal shell on the back, ends at another limit that mobile phone metal shell is relative.Form the two-end-point of two transversal slottings originating in spill fluting of vertically slotting of this spill fluting, end at the edge of opening being positioned at mobile phone metal shell on the back that camera is set.
NFC antenna 3 and spill around camera slot 5 with the use of structure, the communication distance of NFC antenna can be increased, thus meet the compatibility test requirement of NFC all standard agreements test request and each operator.
In sum, the present invention designs uniqueness, novel structure, NFC antenna utilizes the opening arranging camera in mobile phone metal back cover to carry out radiation, simultaneously owing to mobile phone metal back cover being arranged spill fluting, effectively reduce metal back cover eddy current produces magnetic field interference to NFC antenna, thus ensure, when working between NFC antenna and read write line, there is good electric property.It is simple for structure, attractive in appearance, can be widely used in having on the mobile phone of metal back cover, meets mobile payment function requirement.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. for the NFC antenna structure of metal back cover mobile phone, it is characterized in that: the NFC antenna being provided with coil form in mobile phone metal back cover inside, mobile phone metal back cover has spill fluting and perforate, described NFC antenna is slotted by spill and is utilized magnetic Field Coupling to realize communicating between perforate with external reader antenna.
2. the NFC antenna structure for metal back cover mobile phone according to claim 1, is characterized in that: described NFC antenna comprises NFC coil and ferrimagnetism sheet, and NFC coil and ferrimagnetism sheet are attached at one.
3. the NFC antenna structure for metal back cover mobile phone according to claim 2, it is characterized in that: the element coiling that described NFC coil configures around tapping, NFC coil around middle body size be greater than the size of described element, ferrimagnetism sheet core is provided with the opening being greater than described element outline, and described element is through opening.
4. the NFC antenna structure for metal back cover mobile phone according to claim 2, it is characterized in that: described NFC coil is the plane annular wire coil that on FPC base material, ecto-entad successively coiling is formed, and described NFC coil is rectangle, square, circle or oval.
5. the NFC antenna structure for metal back cover mobile phone according to claim 4, is characterized in that: the one side of described FPC base material attaches the ferrimagnetism sheet identical with its profile, and the two is overlapping.
6. the NFC antenna structure for metal back cover mobile phone according to claim 1, is characterized in that: described perforate is rectangle, square, circle or oval.
7. the NFC antenna structure for metal back cover mobile phone according to claim 1, it is characterized in that: described spill fluting originates in a limit of mobile phone metal back cover, end at a relative limit of mobile phone metal back cover, spill fluting is vertically slotted by two transversal slottings and two and is formed, two vertical flutings originate in the end points being positioned at mobile phone metal back cover mid portion of two transversal slottings respectively, end at the edge of perforate, the first transversal slotting, the second transversal slotting and first are vertically slotted, second vertically to slot formation one spill.
8. the NFC antenna structure for metal back cover mobile phone according to claim 7, is characterized in that: described two transversal slottings are the curve shape of horizontal linear shape, oblique line shape or horizontal direction.
9. the NFC antenna structure for metal back cover mobile phone according to claim 7, it is characterized in that: the second transversal slotting of the latter half of described spill fluting ends at a relative limit of mobile phone metal back cover, or ends at other adjacent limit of mobile phone metal back cover.
10. the NFC antenna structure for metal back cover mobile phone according to claim 7, is characterized in that: described two curve shapes of vertically slotting in vertical straight wire shaped, oblique line shape or vertical direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510422616.2A CN104993216A (en) | 2015-07-17 | 2015-07-17 | NFC antenna structure for metal back cover mobile phone |
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| CN201510422616.2A CN104993216A (en) | 2015-07-17 | 2015-07-17 | NFC antenna structure for metal back cover mobile phone |
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| CN201510422616.2A Pending CN104993216A (en) | 2015-07-17 | 2015-07-17 | NFC antenna structure for metal back cover mobile phone |
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| CN105245652A (en) * | 2015-10-27 | 2016-01-13 | 广东欧珀移动通信有限公司 | Mobile terminal |
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| CN107196060A (en) * | 2017-05-04 | 2017-09-22 | 上海德门电子科技有限公司 | The NFC structures without antenna based on shell after metal |
| CN106953161B (en) * | 2017-05-04 | 2023-10-27 | 义乌中国小商品城大数据有限公司 | Non-contact radio frequency card payment device applied to mobile terminal |
| US10854958B2 (en) | 2017-08-30 | 2020-12-01 | Samsung Electronics Co., Ltd. | Electronic device including grip sensor and antenna |
| US10559873B2 (en) | 2017-08-30 | 2020-02-11 | Samsung Electronics Co., Ltd. | Electronic device including grip sensor and antenna |
| WO2019045461A1 (en) * | 2017-08-30 | 2019-03-07 | Samsung Electronics Co., Ltd. | Electronic device including grip sensor and antenna |
| CN108024038B (en) * | 2017-11-29 | 2020-01-17 | Oppo广东移动通信有限公司 | Terminal equipment and camera assembly thereof |
| CN108024038A (en) * | 2017-11-29 | 2018-05-11 | 广东欧珀移动通信有限公司 | Terminal device and its CCD camera assembly |
| WO2021174419A1 (en) * | 2020-03-03 | 2021-09-10 | 安徽精卓光显技术有限责任公司 | Decorative plate and electronic device |
| CN113708054A (en) * | 2020-05-20 | 2021-11-26 | 华为技术有限公司 | Electronic device |
| WO2023108541A1 (en) * | 2021-12-16 | 2023-06-22 | 京东方科技集团股份有限公司 | Display apparatus and electronic device |
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Application publication date: 20151021 |
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