CN105789829B - Mobile terminal and its NFC antenna structure - Google Patents
Mobile terminal and its NFC antenna structure Download PDFInfo
- Publication number
- CN105789829B CN105789829B CN201610210850.3A CN201610210850A CN105789829B CN 105789829 B CN105789829 B CN 105789829B CN 201610210850 A CN201610210850 A CN 201610210850A CN 105789829 B CN105789829 B CN 105789829B
- Authority
- CN
- China
- Prior art keywords
- nfc
- ferrite
- mobile terminal
- nfc coil
- coil
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
Abstract
The present invention provides a kind of mobile terminal and its NFC antenna structures, wherein, the NFC antenna structure of the mobile terminal, including ferrite and the NFC coil being connected on the ferrite, the metal rear shell of the mobile terminal includes upper part and end portion, has single seam between upper part and end portion, and the NFC coil and ferrite are located at the inside of the metal rear shell, the NFC coil extends to the inside of the upper part without departing from the top edge singly stitched, the ferrite.
Description
Technical field
The present invention relates to the field NFC more particularly to a kind of mobile terminals and its NFC antenna with the metal back cover singly stitched
Structure.
Background technique
Current NFC near field communication technology has been widely used between electronic equipment or between electronic equipment and reader
Data exchange communication.In many equipment, since single crack structure metal back cover structure intensity is big, visual effect and customer experience
It is good, more and more applied；Single crack structure metal rear shell would generally block the radiation field of antenna simultaneously, thus bring
To the design challenge of NFC antenna.
Existing program proposes single seam lower section that NFC antenna is placed in metal rear shell at present, such as: notification number
NFC antenna is placed in the underface singly stitched by the patent of CN203466283U, the patent, and the magnetic field in NFC antenna can pass through top
Portion edge and gap forming circuit, are specifically shown in Fig. 1.But the greatest drawback of the program is that NFC antenna can part and top edge gold
Belong to overlapping, and usually top edge metal can be used as other antennas, NFC antenna part in the bottom in this way can be to other
Antenna adversely affects.
Summary of the invention
The technical problem to be solved by the present invention is to how reduce NFC antenna part adverse effect caused by other antennas.
In order to solve this technical problem, the present invention provides a kind of NFC antenna structures of mobile terminal, including ferrite
With the NFC coil being connected on the ferrite, the metal rear shell of the mobile terminal includes upper part and end portion, on
There is single seam, the NFC coil and ferrite are located at the inside of the metal rear shell, the NFC between end part and end portion
Coil extends to the inside of the upper part without departing from the top edge singly stitched, the ferrite.
Optionally, the ferrite only partially covers the NFC coil.
Optionally, the ferrite all covers the NFC coil.
Optionally, the ferritic lower edge is flushed with the lower edge singly stitched.
Optionally, the ferritic top edge extends to the top of the upper part.
Optionally, the top edge of the NFC coil is flushed with the top edge singly stitched.
The present invention provides a kind of mobile terminals, including the metal rear shell and NFC antenna structure provided by the invention.
Optionally, it is connected between the upper part and end portion by interconnecting piece, the interconnecting piece stitches the list
It sections.
Optionally, the interconnecting piece is Chong Die with the NFC coil.
Optionally, the connecting portion in the nonoverlapping position of NFC coil.
The present invention is based on mobile terminals to have single seam metal rear shell environment, by NFC antenna coiler part without departing from single seam
Top edge, while the ferrite design that extends to below upper metal improves NFC antenna performance.Due to Ferrite Material
Characteristic ignore other antennas influence for working in 700MHz or more can.
It is had the following advantages as it can be seen that the present invention is compared with existing technology:
Advantage one: the NFC antenna of the prior art is placed in single seam lower section, and NFC coil can be right beyond the part for singly sewing on edge
Other antennas have an adverse effect, but NFC coil is without departing from edge is singly sewed in the present invention, does not affect other days
Line.
Advantage two: if NFC antenna coiler part without departing from singly sew on edge performance can be poor.This is because NFC coil
It will lead to magnetic circuit increase far from top edge, upper part metals generate more leakage field, but can operative constraint after extending ferrite
Leakage field is reduced, to improve NFC antenna performance in magnetic field.
Detailed description of the invention
Fig. 1 is the schematic diagram of mobile terminal in the patent of CN203466283U in the prior art；
1-NFC antenna；2- main part；The marginal portion 3-；4- fine crack；
Fig. 2 is the arrangement schematic diagram of the NFC antenna of mobile terminal in one embodiment of the invention；
Fig. 3 and Fig. 7 to Figure 10 is the schematic diagram of mobile terminal in one embodiment of the invention respectively；
Fig. 4 and Fig. 6 is the diagrammatic cross-section of mobile terminal in one embodiment of the invention respectively；
Fig. 5 is the diagrammatic cross-section of the mobile terminal compared with the present invention；
In figure, 1- metal rear shell；The upper part 11-；12- end portion；The mono- seam of 2-；3-NFC coil；4- ferrite；5-
Interconnecting piece.
Specific embodiment
Detailed retouch is carried out to mobile terminal provided by the invention and its NFC antenna structure below with reference to Fig. 2 to Figure 10
It states, is optional embodiment of the present invention, it is believed that those skilled in the art are in the model for not changing spirit of that invention and content
In enclosing, can it be modified and be polished.
Fig. 2 to Figure 10 is please referred to, the present invention provides a kind of NFC antenna structures of mobile terminal, including ferrite 4 and company
Relationship is arranged in the NFC coil 3 being connected on the ferrite 4, certainly, this connection relationship in other words, is not necessarily referring to be completely covered,
And can be part covering, and installed by other component, the metal rear shell 1 of the mobile terminal includes upper part 11
With end portion 12, there is single seam 2 between upper part 11 and end portion 12, the NFC coil 3 and ferrite 4 are located at described
How the inside of metal rear shell 1 realizes the installation of this position, and this field has solution by oneself, and the present invention does not carry out it
Expansion narration, the NFC coil 3 stitch 2 top edge without departing from the list, and the ferrite 4 extends to the upper part 11
Inside.The position of NFC coil 3 and ferrite 4 can finely tune, but ferrite 4 must exceed 3 top edge of NFC coil, exceed
Part is the bigger the better.
Position in relation to the ferrite 4, does following elaboration:
Position in relation to ferrite 4 relative to NFC coil 3, in optional embodiment of the present invention, such as Fig. 3, Fig. 8 Fig. 9
In the embodiment of Figure 10 signal, the ferrite 4 only partially covers the NFC coil 3.In other alternative embodiments, than
As Fig. 4 to Fig. 7 respectively shown in meaning embodiment in, the ferrite 4 all covers the NFC coil.
Position in relation to ferrite 4 relative to metal rear shell 1, in optional embodiment of the present invention, such as Fig. 3, Fig. 9 and figure
10 signals, the lower edge of the ferrite 4 are flushed with the lower edge singly stitched.It is described in the preferred embodiment of the invention
The top edge of ferrite 4 extends to the top of the upper part 11.
Specifically, for compared to Fig. 3, Fig. 7 is a kind of change case of ferrite distribution, compared with Fig. 3, the iron of Fig. 7
Oxysome lower edge is completely Chong Die with NFC coil, that is, realizes and be completely covered, and the embodiment of such performance ratio Fig. 3 signal is poor.
For Fig. 3, Fig. 8 is also a kind of change case of ferrite distribution, compared with Fig. 3, the ferrite top of Fig. 8
Edge does not arrive at the top of mobile phone, and NFC coil is not completely covered yet in lower edge, and the embodiment of such performance ratio Fig. 3 signal is poor.
Position in relation to the NFC coil 3, as long as meeting top edge of the upper end not higher than single seam 2, certainly,
In the preferred embodiment of the invention, with reference to each embodiment other than Fig. 4, the top edge of the NFC coil 3 and the list stitch 2
Top edge flushes.3 top edge of NFC coil is flushed with the top edge of single seam 2, and such NFC coil 3 and upper part 11 do not generate weight
It is folded.
Based on described above, flushed at the top of 4 top edge of ferrite and mobile phone, 4 lower edge of ferrite and single seam 2 it is following
Edge flushes.Upper part 11 is used in other antennas in the general mobile phone with single crack structure rear shell, such as: GPS/WIFI/
Aux.Since the characteristic of 4 material of ferrite ignore other antennas influence for working in 700MHz or more can.
In order to embody effect of the invention, Fig. 4 and Fig. 6 are listed, Fig. 4 describes the section Distribution of Magnetic Field of Fig. 1 scheme,
It can be seen that being formed into a loop close to the magnetic field that the NFC coil 3 to crack generates around upper part 11.This scheme is notification number
The NFC scheme proposed inside the patent of CN203466283U.The NFC coil that magnetic field is generated in the program can generate other antennas
Adverse effect.Fig. 6 describes the section Distribution of Magnetic Field of Fig. 3 scheme of the invention, on the basis of Fig. 5 extend ferrite 4 to
At the top of mobile phone, leakage field caused by magnetic circuit increases can be effectively reduced, thus significantly by magnetically confined inside ferrite 4 in this way
Enhance NFC performance.
On the other side, scheme as shown in Figure 5 describes far from upper part 11 to reduce NFC coil 3 to other
The adverse effect of antenna, but the magnetic field strength that NFC coil 3 itself generates reduces.This is because magnetic circuit increases below NFC coil
Caused by big leakage field is more.
From the point of view of above-mentioned described embodiment, ferrite extension of the present invention effectively constrains magnetic field,
Reduce leakage field caused by magnetic circuit increases, to improve the communication distance of NFC system.
Based on above NFC antenna structure, the present invention also provides a kind of mobile terminals, including 1 He of metal rear shell
NFC antenna structure provided by the invention.
In optional embodiment of the present invention, Fig. 9 and Figure 10 are please referred to, between the upper part 11 and end portion 12
It is connected by interconnecting piece 5, the interconnecting piece 5 sections single seam 2.In further alternative embodiment, as shown in Figure 10,
The interconnecting piece 5 is Chong Die with the NFC coil.Or as shown in figure 9, the interconnecting piece 5 be located at do not weighed with the NFC coil 3
Folded position.
Specifically, Fig. 9 is a kind of change case of shell, and compared with Fig. 3, there are interconnecting pieces between the metal up and down of Fig. 9
5, and interconnecting piece 5 is not be overlapped with NFC coil 3, in this way under the conditions of NFC structure of the invention be equally applicable in.Figure 10 is a kind of shell
Change case, compared with Fig. 3, there are interconnecting pieces 5 between the metal up and down of Figure 10, and interconnecting piece 5 is Chong Die with NFC coil 3, in this way
Under the conditions of NFC structure of the invention be equally applicable in.
In conclusion the present invention is based on mobile terminals to have single seam metal rear shell environment, not by NFC antenna coiler part
Beyond the top edge singly stitched, while the ferrite design that extends to below upper metal improves NFC antenna performance.Due to iron oxygen
The characteristic of body material ignore other antennas influence for working in 700MHz or more can.
It is had the following advantages as it can be seen that the present invention is compared with existing technology:
Advantage one: the NFC antenna of the prior art is placed in single seam lower section, and NFC coil can be right beyond the part for singly sewing on edge
Other antennas have an adverse effect, but NFC coil is without departing from edge is singly sewed in the present invention, does not affect other days
Line.
Advantage two: if NFC antenna coiler part without departing from singly sew on edge performance can be poor.This is because NFC coil
It will lead to magnetic circuit increase far from top edge, upper part metals generate more leakage field, but can operative constraint after extending ferrite
Leakage field is reduced, to improve NFC antenna performance in magnetic field.
In addition, reaching enhancing NFC days as the arrangement for having the materials'use of similar performance of the invention with Ferrite Material
Linearly the way of energy is considered as the protection scope of this patent.
Claims (5)
1. a kind of NFC antenna structure of mobile terminal, described including ferrite and the NFC coil being connected on the ferrite
The metal rear shell of mobile terminal includes upper part and end portion, has single seam, the NFC between upper part and end portion
Coil and ferrite be located at the inside of the metal rear shell, it is characterised in that: the top edge of the NFC coil and described singly stitches
Top edge flushes, and the ferritic top edge extends to the top of the upper part, the ferritic lower edge and institute
The lower edge singly stitched is stated to flush.
2. a kind of mobile terminal, it is characterised in that: including the metal rear shell and NFC antenna structure as described in claim 1.
3. mobile terminal as claimed in claim 2, it is characterised in that: pass through connection between the upper part and end portion
Portion's connection, the interconnecting piece section single seam.
4. mobile terminal as claimed in claim 3, it is characterised in that: the interconnecting piece is Chong Die with the NFC coil.
5. mobile terminal as claimed in claim 3, it is characterised in that: the connecting portion is not in be overlapped with the NFC coil
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610210850.3A CN105789829B (en) | 2016-04-06 | 2016-04-06 | Mobile terminal and its NFC antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610210850.3A CN105789829B (en) | 2016-04-06 | 2016-04-06 | Mobile terminal and its NFC antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105789829A CN105789829A (en) | 2016-07-20 |
| CN105789829B true CN105789829B (en) | 2019-01-11 |
Family
ID=56394877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610210850.3A Active CN105789829B (en) | 2016-04-06 | 2016-04-06 | Mobile terminal and its NFC antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789829B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207380A (en) * | 2016-07-22 | 2016-12-07 | 上海安费诺永亿通讯电子有限公司 | Near field communication antenna device and electronic equipment |
| CN106571522A (en) * | 2016-10-18 | 2017-04-19 | 昆山睿翔讯通通信技术有限公司 | Antenna for mobile phones with metal back shell and mobile phone using same |
| CN106657470A (en) * | 2016-12-23 | 2017-05-10 | 广东欧珀移动通信有限公司 | Shell component of terminal, and terminal |
| CN106921033A (en) * | 2017-03-02 | 2017-07-04 | 上海德门电子科技有限公司 | Electronic equipment frame antenna structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518289A (en) * | 2011-09-09 | 2014-01-15 | 株式会社村田制作所 | Antenna device and communication terminal device |
| CN204596941U (en) * | 2015-03-30 | 2015-08-26 | 上海安费诺永亿通讯电子有限公司 | The mobile device of configuration near field antenna and metal shell |
| TW201541719A (en) * | 2014-01-17 | 2015-11-01 | Dexerials Corp | Antenna device and electronic apparatus |
| CN204947083U (en) * | 2015-07-10 | 2016-01-06 | 惠州硕贝德无线科技股份有限公司 | A kind of NFC antenna structure of metal back cover |
| CN105449340A (en) * | 2015-12-04 | 2016-03-30 | 魅族科技（中国）有限公司 | Near field communication antenna apparatus and terminal |
| CN205583124U (en) * | 2016-04-06 | 2016-09-14 | 上海安费诺永亿通讯电子有限公司 | Mobile terminal and NFC antenna structure thereof |
-
2016
- 2016-04-06 CN CN201610210850.3A patent/CN105789829B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518289A (en) * | 2011-09-09 | 2014-01-15 | 株式会社村田制作所 | Antenna device and communication terminal device |
| TW201541719A (en) * | 2014-01-17 | 2015-11-01 | Dexerials Corp | Antenna device and electronic apparatus |
| CN204596941U (en) * | 2015-03-30 | 2015-08-26 | 上海安费诺永亿通讯电子有限公司 | The mobile device of configuration near field antenna and metal shell |
| CN204947083U (en) * | 2015-07-10 | 2016-01-06 | 惠州硕贝德无线科技股份有限公司 | A kind of NFC antenna structure of metal back cover |
| CN105449340A (en) * | 2015-12-04 | 2016-03-30 | 魅族科技（中国）有限公司 | Near field communication antenna apparatus and terminal |
| CN205583124U (en) * | 2016-04-06 | 2016-09-14 | 上海安费诺永亿通讯电子有限公司 | Mobile terminal and NFC antenna structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105789829A (en) | 2016-07-20 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20160901 Address after: 201108 Minhang District South Road, No. 689, Shanghai Applicant after: Shanghai Anfeinuoyongyi Communication Electronic Co., Ltd. Applicant after: University of Electronic Science and Technology of China Address before: 201108 Minhang District South Road, No. 689, Shanghai Applicant before: Shanghai Anfeinuoyongyi Communication Electronic Co., Ltd. |
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