CN205911423U - Prefix type NFC antenna - Google Patents
Prefix type NFC antenna Download PDFInfo
- Publication number
- CN205911423U CN205911423U CN201620929425.5U CN201620929425U CN205911423U CN 205911423 U CN205911423 U CN 205911423U CN 201620929425 U CN201620929425 U CN 201620929425U CN 205911423 U CN205911423 U CN 205911423U
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- China
- Prior art keywords
- nfc antenna
- screen
- slotted eye
- prefix type
- coil
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 229910000859 α-Fe Inorganic materials 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 30
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- 238000009826 distribution Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Telephone Set Structure (AREA)
Abstract
The utility model provides a prefix type NFC antenna, include: a screen metal sheet, screen metal sheet top is provided with a touch -sensitive screen, and the below is provided with a coil, be provided with an open slot on the screen metal sheet, this open slot includes a slotted hole and a gap, gap one end extends to screen metal sheet edge and opening, the other end and slotted hole intercommunication, the marginal front outline of part of slotted hole is located the edge outside of coil. The utility model provides a prefix type NFC antenna utilizes the open slot to realize that the reversal of the electric current flow direction makes it the same with the coil body direction on the screen metal sheet to the effect of enhancement is reached the NFC antenna. And because the utility model discloses antenna setting is in the below of touch -sensitive screen, so the fluting can not destroy the integrality of metal casing on the screen metal sheet, has guaranteed the pleasing to the eye of whole product. Compared with the prior art, the utility model has the advantages of simple structure, antenna performance superiority.
Description
Technical field
This utility model belong to antenna and in particular to be a kind of prefix type nfc antenna, be mainly used in mobile phone, computer etc.
Terminal unit.
Background technology
Near-field communication (near field communication, nfc)), also known as wireless near field communication, it is a kind of short distance
From high frequency wireless communication technology it is allowed to carry out between electronic equipment contactless Point-to-Point Data Transmission (in ten centimetres) hand over
Change data.It is widely used in mobile device, consumer electronics product, pc and smart control Tool Room and carries out near radio
Communication, can very easily realize mobile-phone payment and file transmission, exchange information, access with can allowing consumer's simple, intuitive
Content and service, are favored by numerous clients deeply.
With the fast development of the mobile devices such as smart mobile phone, increasing smart mobile phone employs near-field communication technology
Antenna (nfc antenna).But for the mobile phone of metal back cover, if nfc antenna is directly installed on inside metal shell, gold
Belong to and not only can produce the vortex being completely reversed with antenna current on back cover, and metal back cover can shield antenna completely, therefore
Aerial signal can be made cannot to be detected in the outside of metal back cover.
For this reason, patent cn102405556b propose a through hole and one are opened on metal back cover from through hole to metal
The gap at back cover edge.The vortex being completely reversed producing on this gap metal back cover is so that this vortex becomes and antenna current
The effective vortex having positive effect to antenna in the same direction.This by cracked gap cause in the same direction effectively vortex overcome above-mentioned
Metal back cover is to the shielding action of nfc antenna so that nfc antenna can be detected in the outside of metal back cover.Although passing through
The method in opened hole and gap solves the shielding action to nfc antenna for the metal back cover, but the through hole opened and gap are still
Have impact on the integrity of metal back cover, this destruction to metal back cover integrity undoubtedly have impact on the aesthetic feeling of metal fuselage equipment
And intensity.
Utility model content
For this reason, the purpose of this utility model is to provide a kind of structure simple, the prefix type nfc antenna of superior performance.
The purpose of this utility model is achieved through the following technical solutions.
A kind of prefix type nfc antenna, comprising:
One screen metallic plate, is provided with a touch screen above described screen metallic plate, lower section is provided with a coil；
It is provided with an open slot, this open slot includes a slotted eye and a gap, described gap one on described screen metallic plate
End extends to screen metal-sheet edges and opening, and the other end is connected with slotted eye；
The part edge upright projection of described slotted eye is located at outside the edge of coil.
Preferably, described slotted eye is rectangle, circle, ellipse or other arbitrary shapes.
Preferably, between 5～10mm, width is between 1～2mm for described gap length.
Preferably, the length in described gap is 5mm, and width is 1mm.
Preferably, described slotted eye is the rectangle of 42mm*3mm.
This utility model additionally provides a kind of prefix type nfc antenna, comprising:
One screen metallic plate, is provided with a touch screen above described screen metallic plate, lower section is disposed with from top to bottom
One coil, a ferrite, a metal center；
It is provided with an open slot, this open slot includes a slotted eye and a gap, described gap one on described screen metallic plate
End extends to screen metal-sheet edges and opening, and the other end is connected with slotted eye；
Described slotted eye upright projection is on coil, and the marginal portion of slotted eye is located at outside coil edge；
Described ferrite is corresponding to be located at immediately below coil, and coil projection on the ferrite is overlapped with ferrite.
Preferably, described slotted eye is rectangle, circle, ellipse or other arbitrary shapes.
Preferably, between 5～10mm, width is between 1～2mm for described gap length.
Preferably, the length in described gap is 5mm, and width is 1mm.
Preferably, described slotted eye is the rectangle of 42mm*3mm.
The prefix type nfc antenna that this utility model provides, is arranged on the lower section of touch screen, and it is by side under a touch screen
Open up open slot on screen metallic plate, nfc antenna is installed below open slot, achieved on screen metallic plate using open slot
Current direction reversion makes it identical with coil body direction, thus nfc antenna is reached with the effect of reinforcement.And due to this practicality
New antenna is arranged on the lower section of touch screen, therefore on screen metallic plate fluting will not destroy metal shell integrity it is ensured that
Whole product attractive in appearance.Compared with prior art, this utility model has the advantages that structure is simple, excellent antenna performance.
Brief description
Fig. 1 is the perspective view of this utility model prefix type nfc antenna；
Fig. 2 is the perspective structure schematic diagram of this utility model prefix type nfc antenna；
Fig. 3 is antenna schematic diagram on the screen metallic plate of this utility model prefix type nfc antenna；
Fig. 4 is the nfc antenna impedance characteristic schematic diagram under this utility model original state；
Fig. 5 is the CURRENT DISTRIBUTION contrast schematic diagram at the mainboard with ferrite sealing coat for this utility model；
Fig. 6 is this utility model without the CURRENT DISTRIBUTION contrast schematic diagram at the mainboard of ferrite sealing coat；
Fig. 7 is the CURRENT DISTRIBUTION contrast schematic diagram of this utility model coil；
Fig. 8 is the CURRENT DISTRIBUTION schematic diagram at this utility model screen；
Fig. 9 is astomous CURRENT DISTRIBUTION schematic diagram at this utility model screen；
Figure 10 is h field of the present utility model shape figure；
Figure 11 is front panel of the present utility model is all-metal h field shape figure；
Figure 12 is the h field shape figure going metallic plate of the present utility model.
Identifier in figure illustrates: touch screen 10, screen metallic plate 20, open slot 21, slotted eye 211, gap 212, metal center
30th, ferrite 40, coil 50.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Refer to shown in Fig. 1～Fig. 3, Fig. 1 is the perspective view of this utility model prefix type nfc antenna；Fig. 2 is
The perspective structure schematic diagram of this utility model prefix type nfc antenna；Fig. 3 is the screen gold of this utility model prefix type nfc antenna
Belong to antenna schematic diagram on plate.This utility model provides a kind of prefix type nfc antenna, and this nfc antenna is mostly installed at display screen
Lower section.
Illustrate, the prefix type nfc antenna described in the present embodiment includes a screen metal taking smart mobile phone as a example
Plate 20, the top of described screen metallic plate 20 is the touch screen 10 of mobile phone, and lower section is disposed with coil 50, ferrite 40 and gold
Belong to center 30.
One open slot 21 is provided with screen metallic plate 20, this open slot 21 includes a slotted eye 211 and a seam
Gap 212, the one end in described gap 212 extends to the edge of screen metallic plate 20 and is formed with opening, the other end then with slotted eye 211
Connection (see Fig. 3).
Wherein slotted eye 211 can be rectangle, circle, ellipse or other arbitrary shapes.In the present embodiment, slotted eye 211 is
The rectangle of 42mm*3mm；And gap length is 5mm, width is 1mm.Open slot 21 is preferably the shape of falling t, and it mainly passes through to screen
Curtain metallic plate 20 carries out the shape of falling t cutting and is formed, and according to different shapes, open slot 21 can also cut into different shapes.
Coil 50 is nfc aerial coil, is rectangle in the present embodiment, its corresponding underface being located at slotted eye 211, and slotted eye
211 upright projection is on coil 50, and the marginal portion of slotted eye 211 corresponds to and is located at outside coil 50 edge.
The corresponding underface being located at coil 50 of ferrite 40, and projection on ferrite 40 for the coil 50 and ferrite 40 weight
Close.
Metal center 30 is located at the lower section of ferrite 40, because the presence of metal center 30 is it is therefore desirable to ferrite 40, makes
The vortex producing at metal at coil 50 in a metal frame 30 can be isolated with ferrite 40.
But for the terminal units such as some computers, it does not need metal center, can take in this case
Disappear ferrite part.In this case prefix type nfc antenna only needs to include a screen metallic plate 20, screen metallic plate
20 top is the touch screen 10 of mobile phone, and lower section is provided with coil 50.
As for the open slot 21 of setting on screen metallic plate 20, and the shape of open slot 21, size etc. all with mobile phone
Identical, will not be described here.
As shown in figure 4, Fig. 4 is the nfc antenna impedance characteristic schematic diagram under this utility model original state.This is hindered herein
Anti- distribution carries out the tuning process of simultaneously electric capacity serial capacitors so that 13.56mhz resonance is to the resistance region needing.
Fig. 5 is the CURRENT DISTRIBUTION contrast schematic diagram at the mainboard with ferrite sealing coat for this utility model；Fig. 6 is this practicality
CURRENT DISTRIBUTION contrast schematic diagram at the new mainboard without ferrite sealing coat.As can be seen from Figure, in a metal at frame
Current distributions, from contrast, follow-up near-field coupling is away from seeing that the vortex in the case of no ferrite is substantially distributed in coil
Routing region, and become with the electric current of coil reversely to lead to the electric current being superimposed to be attenuated, lead to hydraulic performance decline, divide from there being ferrite
The metal center current conditions of cloth are seen hence it is evident that CURRENT DISTRIBUTION and intensity all have significant decline, such as increase ferrite area and thickness
Degree weakens for vortex certain benefit.
Fig. 7 is the CURRENT DISTRIBUTION contrast schematic diagram of this utility model coil；Fig. 8 is that the electric current at this utility model screen divides
Cloth schematic diagram；Fig. 9 is astomous CURRENT DISTRIBUTION schematic diagram at this utility model screen.As can be seen from Figure, if do not adopted
The type of falling t retention metal backing assumes the clockwise CURRENT DISTRIBUTION in place, leads to nfc performance can not eject completely.It can be seen that
At section, current direction has carried out reversion thus identical with coil body direction, reaches the effect of reinforcement.The retention of this programme
The size of metal can be adjusted, on the premise of not affecting screen intensity, due to not being appearance member, for size etc. with outward
See part and compare more alternatives.Simultaneously as embodiment back does not have metal center can cancel ferrite part.
Figure 10 is h field of the present utility model shape figure；Figure 11 is front panel of the present utility model is all-metal h field shape figure；
Figure 12 is the h field shape figure going metallic plate of the present utility model.In terms of the shape figure of field, the magnetic field intensity of this programme is golden with respect to removing
Belong to plate and metallic plate is not slotted and had clear improvement.
In sum, this utility model achieves on the premise of guaranteeing nfc antenna communication function and sets with the fusion of screen
Meter, is desirably integrated into the screen end of terminal unit, realizes preposition, effectively prevent and be arranged on equipment metal back cover, can destroy and set
Standby integrity issues, forward antenna of the present utility model is installed can make equipment be applied as gathering end in a device.
It should be noted that for different use environments, forward antenna of the present utility model can apply to mobile phone, pen
Remember the different terminal unit such as this computer, display, panel computer, and whether adopt metal center according in equipment, and select
Select the need of adopting ferrite；If there is no corresponding metal center in equipment, can be without selection ferrite；If there are
Metal center then needs corresponding selection ferrite.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Any modification, equivalent and improvement made within the spirit of utility model and principle etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of prefix type nfc antenna is it is characterised in that include:
One screen metallic plate (20), is provided with a touch screen (10) above described screen metallic plate (20), lower section is provided with a line
Circle (50)；
One open slot (21) is provided with described screen metallic plate (20), this open slot (21) includes a slotted eye (211) and a seam
Gap (212), described gap (212) one end extends to screen metallic plate (20) edge and opening, and the other end is with slotted eye (211) even
Logical；
The part edge upright projection of described slotted eye (211) is located at outside the edge of coil (50).
2. prefix type nfc antenna as claimed in claim 1 is it is characterised in that described slotted eye (211) is rectangle, circle, ellipse
Shape or other arbitrary shapes.
3. prefix type nfc antenna as claimed in claim 2 is it is characterised in that described gap (212) length is between 5～10mm
Between, width is between 1～2mm.
4. prefix type nfc antenna as claimed in claim 3 it is characterised in that described gap (212) length be 5mm, width
For 1mm.
5. prefix type nfc antenna as claimed in claim 4 is it is characterised in that described slotted eye (211) is the square of 42mm*3mm
Shape.
6. a kind of prefix type nfc antenna is it is characterised in that include:
One screen metallic plate (20), is provided with a touch screen (10) above described screen metallic plate (20), lower section from top to bottom according to
Secondary it is provided with a coil (50), a ferrite (40), a metal center (30)；
One open slot (21) is provided with described screen metallic plate (20), this open slot (21) includes a slotted eye (211) and a seam
Gap (212), described gap (212) one end extends to screen metallic plate (20) edge and opening, and the other end is with slotted eye (211) even
Logical；
Described slotted eye (211) upright projection is on coil (50), and the marginal portion of slotted eye (211) is located at outside coil (50) edge
Side；
Described ferrite (40) is corresponding to be located at immediately below coil (50), and projection on ferrite (40) for the coil (50) and ferrum oxygen
Body (40) overlaps.
7. prefix type nfc antenna as claimed in claim 6 is it is characterised in that described slotted eye (211) is rectangle, circle, ellipse
Shape or other arbitrary shapes.
8. prefix type nfc antenna as claimed in claim 7 is it is characterised in that described gap (212) length is between 5～10mm
Between, width is between 1～2mm.
9. prefix type nfc antenna as claimed in claim 8 it is characterised in that described gap (212) length be 5mm, width
For 1mm.
10. prefix type nfc antenna as claimed in claim 9 is it is characterised in that described slotted eye (211) is the square of 42mm*3mm
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620929425.5U CN205911423U (en) | 2016-08-24 | 2016-08-24 | Prefix type NFC antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620929425.5U CN205911423U (en) | 2016-08-24 | 2016-08-24 | Prefix type NFC antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205911423U true CN205911423U (en) | 2017-01-25 |
Family
ID=57801662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620929425.5U Expired - Fee Related CN205911423U (en) | 2016-08-24 | 2016-08-24 | Prefix type NFC antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205911423U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685489A (en) * | 2017-02-28 | 2017-05-17 | 努比亚技术有限公司 | Communication terminal and near-field communication antenna module |
| CN107863602A (en) * | 2017-10-10 | 2018-03-30 | 深圳市信维通信股份有限公司 | A kind of all-metal wrist-watch antenna system |
| CN108695599A (en) * | 2017-04-06 | 2018-10-23 | 比亚迪股份有限公司 | Antenna module and mobile terminal |
| WO2020233281A1 (en) * | 2019-05-17 | 2020-11-26 | 杭州海康威视数字技术股份有限公司 | Device supporting card swiping |
| WO2021057052A1 (en) * | 2019-09-25 | 2021-04-01 | 中兴通讯股份有限公司 | Electronic assembly and terminal device |
-
2016
- 2016-08-24 CN CN201620929425.5U patent/CN205911423U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685489A (en) * | 2017-02-28 | 2017-05-17 | 努比亚技术有限公司 | Communication terminal and near-field communication antenna module |
| CN108695599A (en) * | 2017-04-06 | 2018-10-23 | 比亚迪股份有限公司 | Antenna module and mobile terminal |
| CN107863602A (en) * | 2017-10-10 | 2018-03-30 | 深圳市信维通信股份有限公司 | A kind of all-metal wrist-watch antenna system |
| WO2020233281A1 (en) * | 2019-05-17 | 2020-11-26 | 杭州海康威视数字技术股份有限公司 | Device supporting card swiping |
| US11868838B2 (en) | 2019-05-17 | 2024-01-09 | Hangzhou Hikvision Digital Technology Co., Ltd. | Device supporting card-swiping |
| WO2021057052A1 (en) * | 2019-09-25 | 2021-04-01 | 中兴通讯股份有限公司 | Electronic assembly and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 |