CN104752808B - Nfc antenna component - Google Patents
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- CN104752808B CN104752808B CN201310754154.5A CN201310754154A CN104752808B CN 104752808 B CN104752808 B CN 104752808B CN 201310754154 A CN201310754154 A CN 201310754154A CN 104752808 B CN104752808 B CN 104752808B
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Abstract
The invention discloses a kind of NFC antenna component, including：Metallic plate, formed with the pilot hole for penetrating the metallic plate on the metallic plate；Installation sheet, the installation sheet are located in the pilot hole；Insulating washer, the insulating washer are located in the pilot hole and are coated on the periphery of the installation sheet；And NFC antenna, the NFC antenna are located on the installation sheet；Wherein, the installation sheet is provided with the first groove radially extended, and the metallic plate is provided with the second groove of the side edge extension along the pilot hole to the metallic plate.NFC antenna component according to embodiments of the present invention, by setting the first groove and the second groove respectively on installation sheet and metallic plate, reduce the formation of vortex, and the magnetic line of force can be coupled on the metallic plate equivalent to passive amplifier, the magnetic line of force is set to pass through from pilot hole while increasing magnetic flux, the performance of NFC antenna is improved, while meets the design concept for reducing NFC antenna assembly volume, it is cost-saved.
Description
Technical field
The present invention relates to antenna technical field, more particularly, to a kind of NFC antenna component.
Background technology
NFC antenna structure on existing metal shell has that eddy-current loss is serious, volume is larger and communication distance is short etc. and asked
Topic, is further improved.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem to a certain extent.
Therefore, it is an object of the present invention to propose a kind of NFC antenna component with higher communication distance.
NFC antenna component according to embodiments of the present invention includes：Metallic plate, formed with penetrating the gold on the metallic plate
Belong to the pilot hole of plate；Installation sheet, the installation sheet are located in the pilot hole；Insulating washer, the insulating washer are located at described
Pilot hole is interior and is coated on the periphery of the installation sheet；And NFC antenna, the NFC antenna are located on the installation sheet；Its
In, the installation sheet is provided with the first groove for radially extending, and the metallic plate is provided with along the pilot hole to described
Second groove of the side edge extension of metallic plate.
NFC antenna component according to embodiments of the present invention, by setting the first groove on installation sheet, sets on a metal plate
The second groove is put, the formation of vortex can be reduced, and the magnetic line of force is coupled on the metallic plate equivalent to passive amplifier, is increased
Enable the magnetic line of force from pilot hole by increasing communication distance, the performance of NFC antenna component is carried while magnetic flux
Height, while meet the current design concept for increasingly tending to reduce NFC antenna assembly volume, it is cost-saved；In addition, insulating washer
Design metallic plate is insulated with installation sheet, use is safer.
In addition, NFC antenna component according to embodiments of the present invention can also have technical characteristic additional as follows：
According to one embodiment of present invention, the installation sheet is provided with mounting hole, and first groove is formed as and institute
State groove of the periphery of mounting hole and the installation sheet along conducting.
According to one embodiment of present invention, the inner edge of the insulating washer abuts the periphery edge of the installation sheet.
According to one embodiment of present invention, first groove is formed as being located at the installation sheet bottom and vertically side
To the elongate slots of extension, the lower end of first groove extends to the lower edge of the installation sheet, the upper end of first groove
Turned on the mounting hole.
According to one embodiment of present invention, second groove is formed as the rectilinear direction extension along first groove
Elongate slots, the lower end of second groove turns on the pilot hole, and the upper end of second groove extends upwardly to described
The upper edge of metallic plate.
According to one embodiment of present invention, the NFC antenna includes：Aerial coil, the aerial coil and the peace
Load is connected；Aerial coil gum layer, the aerial coil gum layer be located between the aerial coil and the installation sheet with
The aerial coil is connected with the installation sheet；Ferrite coating, the ferrite coating are located on the aerial coil；With
Ferrite coating gum layer, the ferrite coating gum layer are located between the ferrite coating and the aerial coil to incite somebody to action
The ferrite coating is connected with the aerial coil.
According to one embodiment of the invention, the center of the aerial coil has winding bore, the winding bore and the peace
The mounting hole on load is overlapping.
According to one embodiment of present invention, the NFC antenna also includes：Thin metal layer, the thin metal layer are located at institute
State between aerial coil gum layer and the installation sheet；With thin metal layer gum layer, the thin metal layer gum layer is located at described
So that the thin metal layer to be connected with the installation sheet between thin metal layer and the installation sheet.
According to one embodiment of present invention, the thin metal layer is provided with through hole and along the through hole to the metal
Threeth groove of the periphery of thin layer along extension.
According to one embodiment of present invention, the winding bore at the aerial coil center and the mounting hole and described
Through hole is overlapping.
According to one embodiment of present invention, the threeway flute profile turns into vertically extending elongate slots.
According to one embodiment of present invention, the 3rd groove is located at the top of the thin metal layer, the threeway
The lower end of groove turns on the through hole, and the upper end of the 3rd groove extends upwardly to the upper edge of the thin metal layer.
According to one embodiment of present invention, rectilinear direction extension of the 3rd groove along first groove.
According to one embodiment of present invention, the thickness of the thin metal layer is 10-100um.
According to one embodiment of present invention, the area of the thin metal layer is more than the area of the pilot hole, the gold
The outer peripheral edge of category thin layer is arranged on the metallic plate and is connected with metallic plate insulation.
According to one embodiment of present invention, length of the outer peripheral edge of the thin metal layer beyond the edge of the pilot hole
For 2-15mm.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of NFC antenna component according to an embodiment of the invention；
Fig. 2 is the structural representation of the metallic plate of NFC antenna component according to an embodiment of the invention；
Fig. 3 is the structural representation for not installing NFC antenna of NFC antenna component according to an embodiment of the invention；
Fig. 4 is the structural representation of the NFC antenna of NFC antenna component according to an embodiment of the invention；
Fig. 5 is the structural representation of the ferrite coating of NFC antenna component according to an embodiment of the invention；
Fig. 6 is the structural representation of the aerial coil of NFC antenna component according to an embodiment of the invention；
Fig. 7 is the installation profile of NFC antenna component according to an embodiment of the invention；
Fig. 8 is the structural representation of NFC antenna component in accordance with another embodiment of the present invention；
Fig. 9 is the installation profile of NFC antenna component in accordance with another embodiment of the present invention；
Figure 10 is the structural representation of the NFC antenna of NFC antenna component in accordance with another embodiment of the present invention；
Figure 11 is the structural representation of the thin metal layer of NFC antenna component in accordance with another embodiment of the present invention.
Reference：
NFC antenna component 100（100’）；
Installation sheet 10；Mounting hole 11；First groove 12；
Metallic plate 20；Pilot hole 21；Second groove 22；
Insulating washer 30；
NFC antenna 40（40’）；Ferrite coating 41；Ferrite coating gum layer 42；Aerial coil 43；Winding bore 431；
Aerial coil gum layer 44；Thin metal layer 45；Through hole 451；3rd groove 452；Thin metal layer gum layer 46.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.In the description of the invention, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
NFC antenna component 100 according to embodiments of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1 to 11, NFC antenna component 100 according to embodiments of the present invention includes metallic plate 20, installation sheet
10th, insulating washer 30 and NFC antenna 40.Specifically, the pilot hole 21 formed with insertion metallic plate 20 on metallic plate 20, peace
Load 10 is located in pilot hole 21, and NFC antenna 40 is located on installation sheet 10.Insulating washer 30 is located in pilot hole 21 and is coated on
The periphery of installation sheet 10.Wherein, installation sheet 10 is provided with the first groove 12 radially extended, and metallic plate 20 is provided with along dress
The second groove 22 that distribution 21 extends to the side edge of metallic plate 20.
NFC antenna component 100 according to embodiments of the present invention, by setting the first groove 12 on installation sheet 10, in gold
Second groove 22 is set on category plate 20, the formation of vortex can be reduced, and the magnetic line of force is coupled to equivalent to passive amplifier
On metallic plate 20, enable the magnetic line of force from pilot hole 21 by increasing communication distance, NFC antenna while increasing magnetic flux
40 performance is improved, while meets the current design concept for increasingly tending to reduce the volume of NFC antenna component 100, can be saved
Cost；In addition, the design of insulating washer 30 enables metallic plate 20 to be insulated with installation sheet 10, use is safer.
Specifically, NFC antenna component 100 according to embodiments of the present invention opens up on metallic plate 20 first in assembling
The groove 22 of pilot hole 21 and second, the first groove 12 is opened up in installation sheet 10, then installation sheet 10 is arranged on metallic plate 20
In pilot hole 21, while insulating washer 30 is arranged in pilot hole 21, insulating washer 30 is coated the periphery of installation sheet 10, with
Piece 10 is fixedly mounted, finally NFC antenna 40 is fixed on installation sheet 10.Wherein, the size of insulating washer 30 is equal to installation sheet
The size in the gap between 10 and the pilot hole 21 of metallic plate 20, so that insulating washer 30 can seal in gap completely, to peace
Load 10 plays good fixation.The attachment of NFC antenna 40 and installation sheet 10 can have a variety of, such as be bonded phase
Even.
The structure of installation sheet 10 and pilot hole 21 is not particularly limited, alternatively, according to one embodiment of present invention, peace
Load 10 is provided with mounting hole 11, and the first groove 12 is formed as and groove of the periphery of mounting hole 11 and installation sheet 10 along conducting.
Further, the inner edge of insulating washer 30 abuts the periphery edge of installation sheet 10.As shown in Fig. 2 the pilot hole on metallic plate 20
21 are formed generally as rectangle, the insulating washer 30 of rectangle be connected to the inner edge of pilot hole 21 and the periphery of installation sheet 10 along it
Between, installation sheet 10 is fixed in pilot hole 21.One end of the first groove 12 on installation sheet 10 turns on mounting hole 11, another
End is connected on insulating washer 30.
Wherein, installation sheet 10 can be sheet metal, when NFC antenna component 100 according to embodiments of the present invention is applied to mobile phone
When upper, metallic plate 20 is then mobile phone battery cover metallic plate, and NFC antenna 40 is mounted on mobile phone battery cover metallic plate, specific mounting position
At camera for mobile phone battery cover metallic plate, installation sheet 10 is camera metallic plate.Camera be arranged on pilot hole in, and with master
Plate weld is together.One end of first groove is connected on camera.Wherein, the shape of mounting hole can have a variety of, with taking the photograph
As the physical fit of head.For example, the shape of mounting hole is formed as circle（As shown in Figure 3）Or rectangle etc..
The structure of first groove 12 and the second groove 22 is not done with position it is specifically limited, alternatively, the one of the present invention
In a little embodiments, the first groove 12 is formed as being located at the bottom of installation sheet 10 and vertically extending elongate slots, the
The lower end of one groove 12 extends to the lower edge of installation sheet 10, and upper end and the mounting hole 11 of the first groove 12 turn on.Further,
Second groove 22 is formed as the elongate slots along the rectilinear direction extension of the first groove 12, lower end and the pilot hole 21 of the second groove 22
Conducting, the upper end of the second groove 22 extends upwardly to the upper edge of metallic plate 20.Thus, the first groove 12 and the second groove 22
In different positions so that the less antenna in space can have larger communication distance, meet and currently increasingly reduce NFC antenna
The design concept of 40 volumes, it is cost-saved.And second groove 22 be located along the same line with the first groove 12, further reduce
The formation of vortex, improve the performance of NFC antenna 40.
According to one embodiment of present invention, NFC antenna 40 includes aerial coil 43, aerial coil gum layer 44, iron oxygen
Body coating 41 and ferrite coating gum layer 42.Specifically, aerial coil 43 is connected with installation sheet 10, aerial coil gum layer
44 are located between aerial coil 43 and installation sheet 10 so that aerial coil 43 to be connected with installation sheet 10.Ferrite coating 41 is located at day
On line coil 43, ferrite coating gum layer 42 is located between ferrite coating 41 and aerial coil 43 with by ferrite coating 41
It is connected with aerial coil 43.I.e. NFC antenna 40 is formed as laminated construction, is followed successively by ferrite coating 41, ferrite from top to bottom
Coating gum layer 42, aerial coil 43 and aerial coil gum layer 44.Wherein, aerial coil gum layer 44 and the phase of installation sheet 10
Even.
Further, in the specific embodiment of the present invention, the center of aerial coil 43 has winding bore 431,
Winding bore 431 is overlapping with the mounting hole 11 on installation sheet 10.That is coiling hole position 431 is on mounting hole 11, the chi of winding bore 431
The very little size more than or equal to mounting hole 11, winding bore 431 are preferably center superposition with mounting hole 11.
Wherein, aerial coil 43 can be FPC antenna, the profile of aerial coil 43 can have it is a variety of, it is preferably square or
It is circular.Wherein, a specific example of square antenna coil 43 is：The maximum appearance and size of aerial coil 43 be 24.5 ×
17mm, winding turns are 6 circles, and line width 0.3mm, line spacing is 0.1mm, and coiling copper thickness is 35um.Ferrite coating 41 is most
Big appearance and size is 24.5 × 17mm.A diameter of 9mm of the mounting hole 11 of installation sheet 10, the width of the first groove 12 is 1mm.My god
A diameter of 9mm of the winding bore 431 of line coil 43, the width of the 3rd groove 452 is 1mm.The chi of the pilot hole 21 of metallic plate 20
Very little is 28mmx23mm, and the width of the second groove 22 is 1mm.
The performance of the NFC antenna component 100 for being provided with camera with above-mentioned size characteristic is tested below, this
When installation sheet 10 be camera metallic plate, metallic plate 20 is rear shell metallic plate.Wherein, tested based on Class1, specially camera
On metallic plate with the first groove+mobile phone battery cover metallic plate with the second groove.Type 2 is contrast experiment, is specially imaged
There is the second groove on nothing the first groove+mobile phone battery cover metallic plate on head metallic plate.Experiment is with the card reader pattern of Circuit Matching
Under communication distance conduct evaluation criterion, experimental result is as shown in table 1.
Table 1
From table 1 it follows that compared with contrast experiment 2, the performance of Class1 is best.Opened on camera metallic plate
First groove can either obstruct the formation of vortex, while the magnetic line of force can be coupled to the mobile phone battery cover gold equivalent to passive amplifier
Belong on plate, add magnetic flux so that magnetic power passes through from pilot hole and mounting hole, improves the property of NFC antenna component 100
Can, while meet the current design concept for increasingly tending to reduce the volume of NFC antenna component 100, save cost.
As shown in Figure 8 and Figure 9, in another embodiment of the present invention, NFC antenna 40 ' also includes the He of thin metal layer 45
Thin metal layer gum layer 46.Thin metal layer 45 is located between aerial coil gum layer 44 and installation sheet 10, thin metal layer gum layer
46 are located between thin metal layer 45 and installation sheet 10 so that thin metal layer 45 to be connected with installation sheet 10.That is NFC days of laminated construction
Line 40 ' is from top to bottom followed successively by as ferrite coating 41, ferrite coating gum layer 42, aerial coil 43 and aerial coil gum
Layer 44, thin metal layer 45 and thin metal layer gum layer 46, thin metal layer gum layer 46 are connected with installation sheet 10.
Wherein, rolling processing can be carried out to NFC antenna 40 ', each layer is closely fitted in one during attachment
Rise, so that the performance parameter of single NFC antenna 40 ' can reach consistent, and can reduces whole NFC antenna 40 ' and installation sheet 10
Fitting tightness degree it is inconsistent caused by the performance difference of NFC antenna 40 ' and surrounding changes of magnetic field difference, carried so as to reach
The high stability of NFC antenna 40 ', improve production yield and reduce the purpose of cost.
As shown in figure 8, the area of thin metal layer 45 can be slightly larger than the area of installation sheet 10 and less than the area of pilot hole 21.
And when the space of pilot hole 21 is larger, thin metal layer 45 is big than installation sheet 10.For example, according to one of present invention implementation
Example, the area of thin metal layer 45 are more than the area of pilot hole 21, the outer peripheral edge of thin metal layer 45 be arranged on metallic plate 20 and with
The insulation of metallic plate 20 is connected.Specifically, length of the outer peripheral edge of thin metal layer 45 beyond the edge of pilot hole 21 is 2-15mm.
That is pilot hole 21 is completely covered thin metal layer 45, and exceed pilot hole 21 by the side of neighbouring pilot hole 21 of metallic plate 20
The part of edge covers.The outer peripheral edge of thin metal layer 45 on width or length direction beyond pilot hole 21 edge away from
Can be from for 2-15mm, the i.e. size of area coverage of the thin metal layer 45 on metallic plate 20 in length and width directions
2-15mm。
Further, thin metal layer 45 can have same or similar composition, the thickness of thin metal layer 45 with installation sheet 10
Degree can be 10-100um.As a result, when NFC antenna 40 ' increases thin metal layer 45, the integral thickness of NFC antenna 40 ' compared with
It is thin, meet the current design concept and design direction for increasingly tending to sheet.
As shown in figure 11, thin metal layer 45 is provided with through hole 451 and prolonged along through hole 451 to the periphery of thin metal layer 45 edge
The 3rd groove 452 stretched, thin metal layer 45 are formed as the rectangle with the shape adaptation of installation sheet 10.Specifically, aerial coil 43
The winding bore 431 at center is overlapping with mounting hole 11 and through hole 451.Winding bore 431, through hole 451 and mounting hole 11 from top to bottom according to
Secondary distribution, the area of winding bore 431 can be more than or equal to the area of mounting hole 11 and through hole 451.Wherein, winding bore 431, installation
Hole 11 and the assembly method that through hole 451 is preferably center superposition.
Further, the 3rd groove 452 is formed as vertically extending elongate slots.3rd groove 452 may be provided in gold
Belong to the top of thin layer 45, lower end and the through hole 451 of the 3rd groove 452 turn on, and the upper end of the 3rd groove 452 extends upwardly to metal
The upper edge of thin layer 45.Preferably, according to one embodiment of present invention, straight line side of the 3rd groove 452 along the first groove 12
To extension.
Thus, vortex can be reduced to be formed so that magnetic power is gone through from winding bore 431, through hole 451 and mounting hole 11
And can increases changes of magnetic field amount, while the magnetic line of force is coupled on bigger thin metal layer 45 and metallic plate 20, thin metal layer 45
Passive amplification can be played with metallic plate 20.By on the diverse location of metallic plate 20, installation sheet 10 and thin metal layer 45
Open up groove so that the less NFC antenna 40 ' in space can increase communication distance, and meeting currently increasingly tends to reduce NFC antenna
The design concept of 40 ' volumes, has saved cost.
When NFC antenna component 100 ' according to embodiments of the present invention is applied on mobile phone, metallic plate 20 is then rear shell metal
Plate, NFC antenna 40 ' are mounted on rear shell metallic plate, specific mounting position for mobile phone battery cover metallic plate camera at, wherein,
Camera is arranged in pilot hole, and is welded together with mainboard.The structural relation of mobile phone battery cover metallic plate and camera is,
Pilot hole is opened up on mobile phone battery cover metallic plate and connects the second groove of pilot hole and mobile phone battery cover metallic plate outer edge, is being assembled
The camera smaller than the size of pilot hole is placed in hole, insulating washer 30 is used between pilot hole and camera（It can be plastic parts）
Fixed, camera is welded on mainboard.Wherein, camera metallic plate can be used for fixing and welding.It can be opened on camera metallic plate
If the first groove, NFC antenna 40 ' is mounted on camera metallic plate, specifically, the first groove and gold on camera metallic plate
Belong to the 3rd groove 452 on thin layer 45 point-blank, and position differs 180 °, mutually insulated between the two.
43 preferable profile of aerial coil is square or circular, wherein, a concrete case of square antenna coil 43
For：The maximum appearance and size of aerial coil 43 is 24.5 × 17mm, and winding turns enclose for 6, line width 0.3mm, and line spacing is
0.1mm, coiling copper thickness are 35um.The maximum appearance and size of ferrite coating 41 is 24.5 × 17mm.Aerial coil thin metal layer
45 maximum appearance and size is 26.6 × 19mm, a diameter of 9mm of the mounting hole 11 of installation sheet 10.Aerial coil winding bore 431
A diameter of 9mm.The size of the pilot hole 21 of metallic plate 20 is 28mmx23mm, and the width of each groove is 1mm.Now, it is golden
The area of category thin layer 45 is bigger than the area of aerial coil 43 and does not cover on metallic plate 20.
Aerial coil is in another concrete case of square antenna coil 43：The area of thin metal layer 43 compares aerial coil
43 area is big and covers on metallic plate 20.Specifically, the appearance and size of thin metal layer 45 is 38x33mm, through hole 451 it is straight
Footpath is 9mm, and the width of the 3rd groove 452 is 1mm, and the size of miscellaneous part is identical with the size in a upper concrete case.
Below still by with above two size characteristic the NFC antenna component 100 ' of camera is installed exemplified by tried
Test, devise Class1 and 2 two main experiments, in Class1, there is the first groove on camera metallic plate, on thin metal layer 45
With the 3rd groove 452, the area of thin metal layer 45 is bigger than the area coverage of aerial coil 43, but than on mobile phone battery cover metallic plate
Pilot hole it is small；In type 2, the area of thin metal layer 45 is bigger than the area of aerial coil 43 and pilot hole 21, i.e. metal foil
Layer 45 is covered on mobile phone battery cover metallic plate.Type 3 is contrast experiment, and camera metallic plate leads to no on thin metal layer 45
Groove, the second groove is only opened up on mobile phone battery cover metallic plate.Experiment is with the communication distance under the card reader pattern of Circuit Matching
It is as shown in table 2 as evaluation criterion, experimental result.
Table 2
From Table 2, it can be seen that the communication distance in type 2 is bigger than the communication distance in Class1, i.e., when thin metal layer 45
It when covering mobile phone battery cover metallic plate, can increase the communication distance of NFC antenna component 100 '.Further, inventor is also to gold
Belong to the size of area coverage and the relation of communication distance of the thin layer 45 on mobile phone battery cover metallic plate to be tested, study
Go out, in the case where the length direction and width of area coverage are 2-15mm, with the increase of area coverage, communicate away from
From bigger.Wherein, especially with area coverage in 2-10mm excursion, the intensity of variation of communication distance is more apparent.
In addition, by the contrast of Class1 and type 3 or type 2 and type 3, the communication in Class1 or type 2
Distance is greater than type 3.The first groove is opened up on camera metallic plate, vortex has both been obstructed and has been formed, while by the magnetic line of force
It is coupled on the thin metal layer 45 equivalent to passive amplifier, and is further coupled on mobile phone battery cover metallic plate, adds magnetic
Flux so that magnetic power is from pilot hole and mounting hole by so as to improve the performance of NFC antenna component 100 '.Accord with simultaneously
Increasingly tend to reduce the design concept of the volume of NFC antenna component 100 ' before being fated, save cost.
NFC antenna component 100 according to embodiments of the present invention（100’）Other form and operation it is general for this area
All it is known for logical technical staff, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (14)
- A kind of 1. NFC antenna component, it is characterised in that including：Metallic plate, formed with the pilot hole for penetrating the metallic plate on the metallic plate；Installation sheet, the installation sheet are located in the pilot hole；Insulating washer, the insulating washer are located in the pilot hole and are coated on the periphery of the installation sheet；AndNFC antenna, the NFC antenna are located on the installation sheet；Wherein, the installation sheet is provided with the first groove radially extended, and the metallic plate is provided with along the pilot hole The second groove extended to the side edge of the metallic plate,The NFC antenna is from top to bottom to be followed successively by ferrite coating, ferrite coating gum layer, aerial coil, aerial coil The stepped construction of gum layer, thin metal layer and thin metal layer gum layer, the thin metal layer gum layer are connected with the installation sheet.
- 2. NFC antenna component according to claim 1, it is characterised in that the installation sheet is provided with mounting hole, and described One groove is formed as and groove of the periphery of the mounting hole and the installation sheet along conducting.
- 3. NFC antenna component according to claim 2, it is characterised in that described in the inner edge of the insulating washer abuts The periphery edge of installation sheet.
- 4. NFC antenna component according to claim 2, it is characterised in that first groove is formed as being located at the peace The bottom of load and vertically extending elongate slots, the lower end of first groove extend to the following of the installation sheet Edge, the upper end of first groove turn on the mounting hole.
- 5. NFC antenna component according to claim 4, it is characterised in that second groove is formed as along described first The elongate slots of the rectilinear direction extension of groove, the lower end of second groove turn on the pilot hole, second groove Upper end extends upwardly to the upper edge of the metallic plate.
- 6. NFC antenna component according to claim 1, it is characterised in that the center of the aerial coil has winding bore, The winding bore is overlapping with the mounting hole on the installation sheet.
- 7. NFC antenna component according to claim 1, it is characterised in that the thin metal layer is provided with through hole and edge Threeth groove of the through hole to the periphery of the thin metal layer along extension.
- 8. NFC antenna component according to claim 7, it is characterised in that the winding bore at the aerial coil center It is overlapping with the mounting hole and the through hole.
- 9. NFC antenna component according to claim 7, it is characterised in that the threeway flute profile turns into along the vertical direction The elongate slots of extension.
- 10. NFC antenna component according to claim 7, it is characterised in that the 3rd groove is located at the thin metal layer Top, the lower end of the 3rd groove turns on the through hole, and the upper end of the 3rd groove extends upwardly to the metal The upper edge of thin layer.
- 11. NFC antenna component according to claim 10, it is characterised in that the 3rd groove is along first groove Rectilinear direction extension.
- 12. the NFC antenna component according to any one of claim 1-11, it is characterised in that the thickness of the thin metal layer Spend for 10-100um.
- 13. the NFC antenna component according to any one of claim 1-11, it is characterised in that the face of the thin metal layer Product is more than the area of the pilot hole, and the outer peripheral edge of the thin metal layer is on the metallic plate and exhausted with the metallic plate Edge is connected.
- 14. NFC antenna component according to claim 13, it is characterised in that the outer peripheral edge of the thin metal layer exceeds institute The length for stating the edge of pilot hole is 2-15mm.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754154.5A CN104752808B (en) | 2013-12-31 | 2013-12-31 | Nfc antenna component |
| JP2016543581A JP6335312B2 (en) | 2013-12-31 | 2014-12-25 | Near field communication (NFC) antenna assembly |
| EP14877349.2A EP3090469B1 (en) | 2013-12-31 | 2014-12-25 | Nfc antenna assembly |
| PCT/CN2014/095022 WO2015101213A1 (en) | 2013-12-31 | 2014-12-25 | Nfc antenna assembly |
| KR1020167020323A KR101826459B1 (en) | 2013-12-31 | 2014-12-25 | Nfc antenna assembly |
| US15/165,940 US9941572B2 (en) | 2013-12-31 | 2016-05-26 | NFC antenna assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754154.5A CN104752808B (en) | 2013-12-31 | 2013-12-31 | Nfc antenna component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104752808A CN104752808A (en) | 2015-07-01 |
| CN104752808B true CN104752808B (en) | 2017-12-08 |
Family
ID=53592130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310754154.5A Active CN104752808B (en) | 2013-12-31 | 2013-12-31 | Nfc antenna component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170077754A1 (en) * | 2015-09-15 | 2017-03-16 | Qualcomm Incorporated | Near field communication and wireless power transfer dual mode antennas for metal backed devices |
| CN107871928B (en) * | 2016-09-26 | 2024-07-30 | 上海德门电子科技有限公司 | NFC communication antenna and NFC communication equipment |
| CN109037945B (en) * | 2017-06-08 | 2021-04-16 | 速码波科技股份有限公司 | Metal shell structure |
| CN112566440A (en) * | 2019-09-25 | 2021-03-26 | 中兴通讯股份有限公司 | Electronic component and terminal equipment |
| CN112531326B (en) * | 2020-12-18 | 2023-05-26 | 维沃移动通信有限公司 | Electronic equipment |
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| US20110227799A1 (en) * | 2010-03-17 | 2011-09-22 | Panasonic Corporation | Antenna and portable terminal using the same |
| CN202651354U (en) * | 2012-01-13 | 2013-01-02 | 上海安费诺永亿通讯电子有限公司 | Antenna structure |
| CN103219579A (en) * | 2013-04-11 | 2013-07-24 | 上海安费诺永亿通讯电子有限公司 | Novel near field communication (NFC) antenna structure |
| WO2013115147A1 (en) * | 2012-02-01 | 2013-08-08 | 株式会社村田製作所 | Antenna apparatus and communication terminal apparatus |
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| US20110227799A1 (en) * | 2010-03-17 | 2011-09-22 | Panasonic Corporation | Antenna and portable terminal using the same |
| CN202651354U (en) * | 2012-01-13 | 2013-01-02 | 上海安费诺永亿通讯电子有限公司 | Antenna structure |
| WO2013115147A1 (en) * | 2012-02-01 | 2013-08-08 | 株式会社村田製作所 | Antenna apparatus and communication terminal apparatus |
| CN103219579A (en) * | 2013-04-11 | 2013-07-24 | 上海安费诺永亿通讯电子有限公司 | Novel near field communication (NFC) antenna structure |
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