CN110429386A - Smart machine - Google Patents
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- CN110429386A CN110429386A CN201910812735.7A CN201910812735A CN110429386A CN 110429386 A CN110429386 A CN 110429386A CN 201910812735 A CN201910812735 A CN 201910812735A CN 110429386 A CN110429386 A CN 110429386A
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Classifications
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- 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
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- Support Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Aerials (AREA)
Abstract
Present disclose provides a kind of smart machines.Smart machine includes: cyclic annular and closed metal frame and antenna modules.Antenna modules are set in metal frame.Antenna modules include: pcb board, function coil, resonance coil and the capacitor set on two ends of resonance coil.Pcb board is equipped with functional chip.Function coil includes two feeding points, is electrically connected with functional chip.Resonance coil is set between function coil and metal frame, is used for and function coil resonant inducing.Resonance coil can effectively weaken or offset metal frame because of the magnetic field caused by reverse current, to guarantee that antenna modules work normally in the smart machine.In addition, antenna modules also simplify the setting of the antenna modules not using the metal frame as radiator, and do not influence that other antennas are arranged.
Description
Technical field
This disclosure relates to technical field of intelligent equipment more particularly to a kind of smart machine.
Background technique
With the development of communication technologies, NFC (Near Field Communication, near-field communication) and WPC
Antennas such as (Wireless Power Consortium, wireless charging alliances) are widely used in the smart machines such as wrist-watch, bracelet.With
Demand of the people to smart machine appearance looks elegant, smart machine include exquisite beautiful metal frame or shell more.But due to
The volume of smart machine minimizes, and antenna closes on metal frame setting mostly, this makes metal frame be easy to produce the electricity reversed with antenna
Stream, and weaken magnetic field caused by antenna, influence the performance of antenna.Based on this, how to overcome or weaken metal frame to antenna
Influence is particularly important.
Summary of the invention
Present disclose provides a kind of improved smart machines.
An aspect of this disclosure provides a kind of smart machine, and the smart machine includes:
Cyclic annular and closed metal frame；And
Antenna modules are set in the metal frame；
The antenna modules include: pcb board, are equipped with functional chip；
Function coil, including two feeding points, are electrically connected with the functional chip；
Resonance coil and capacitor set on two ends of resonance coil, the resonance coil are set to the functional line
Between circle and the metal frame, it is used for and the function coil resonant inducing.
Optionally, the resonance coil is cyclic structure or helicoidal structure, and the resonance coil is surrounded on the function
Side of the coil towards the metal frame.
Optionally, the resonance coil is one of square ring structure, circular annular form structure, triangle cyclic structure；
Or
The resonance coil is one of square spiral shape structure, round spiral structure, triangle helicoidal structure.
Optionally, the resonance coil is helicoidal structure, and the number of turns of the resonance coil is an at least circle.
Optionally, the number of the resonance coil is at least two, and the resonance frequency of at least two resonance coils
It is different.
Optionally, the number of the resonance coil is at least two, at least one described resonance coil is set to the function
Between coil and the metal frame, at least one described resonance coil is set to one that the function coil deviates from the metal frame
Side.
Optionally, the resonance frequency of the resonance coil and the working frequency of the function coil are identical or different.
Optionally, the function coil is NFC coil, and the resonance frequency of the resonance coil includes 13-16MHz.
Optionally, the function coil is WPC coil, and the resonance frequency of the resonance coil includes 110-205KHz.
Optionally, the capacitor is set to the pcb board, and the end of the resonance coil is connected by connector and the capacitor
It connects.
Optionally, the antenna modules further include: magnetosphere is set between the pcb board and the function coil.
The smart machine that the embodiment of the present disclosure provides at least has the advantages that
The smart machine that the embodiment of the present disclosure provides, by being set to resonance coil between function coil and metal frame, and
Two ends of resonance coil are equipped with capacitor, in function coil working, to make resonance coil and function coil resonant inducing, and
Generate with the electric current of the function coil same direction, effectively to weaken or offset metal frame because of the magnetic field caused by reverse current, into
And guarantees antenna modules and work normally.In addition, antenna modules are not using metal frame as radiator, this not only makes resonance coil
Effectively weaken or offset influence of the metal frame to antenna modules, also simplifies the structure setting of antenna modules, and do not influence gold
Belong to frame and is set as other antennas.
Detailed description of the invention
Fig. 1 show the partial structure sectional view of smart machine shown according to an exemplary embodiment；
It includes at the smart machine surface 15mm of metal frame that Fig. 2, which show distance shown according to an exemplary embodiment,
NFC antenna magnetic-field component distribution map；
It includes at the smart machine surface 15mm of metal frame that Fig. 3, which show distance shown according to an exemplary embodiment not,
NFC antenna magnetic-field component distribution map；
Fig. 4 show the partial structure sectional view of disclosure smart machine shown according to an exemplary embodiment；
Fig. 5 show the partial structure sectional view of disclosure smart machine shown according to an exemplary embodiment；
Fig. 6 show a kind of smart machine table shown according to an exemplary embodiment provided apart from the embodiment of the present disclosure
NFC antenna magnetic-field component distribution map at the 15mm of face.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
Unless otherwise defined, the technical term or scientific term that the disclosure uses, which are should be in disclosure fields, has general skill
The ordinary meaning that the personage of energy is understood." first " " second " and class used in present disclosure specification and claims
As word be not offered as any sequence, quantity or importance, and be used only to distinguish different component parts.Equally, " one
It is a " or the similar word such as " one " do not indicate that quantity limits yet, but indicate that there are at least one.Unless otherwise noted, " packet
Including " element or object that either the similar word such as "comprising" means to appear in front of " comprising " or "comprising" cover and appear in
The element or object of " comprising " or "comprising" presented hereinafter and its equivalent, it is not excluded that other elements or object." even
Connect " either the similar word such as " connected " be not limited to physics or mechanical connection, and may include electrical company
It connects, it is either direct or indirect.
In present disclosure specification and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.It is also understood that term used herein
"and/or" refers to and includes that one or more associated any or all of project listed may combine.
Fig. 1 show the partial structure sectional view of smart machine 100 shown according to an exemplary embodiment.With reference to Fig. 1,
The smart machine 100 includes metal frame 110 and the function coil 120 in metal frame 110.When function coil 120 is with suitable
When conterclockwise current flowing, metal frame 110 generates anticlockwise reverse current.It is fixed according to right-handed helix based on this
Then it is found that magnetic direction caused by magnetic direction caused by function coil 120 and metal frame 110 is on the contrary, this makes metal frame
Magnetic field caused by field weakening caused by 110 or cancel function coil 120, influences the working performance of antenna.
Fig. 2 show the smart machine surface 15mm that distance shown according to an exemplary embodiment includes metal frame 110
The NFC antenna magnetic-field component distribution map at place.It does not include metal frame that Fig. 3, which show distance shown according to an exemplary embodiment,
NFC antenna magnetic-field component distribution map at the 15mm of smart machine surface.The smart machine of Fig. 2 can be smart machine shown in FIG. 1,
Metal frame 110 is square box, and the side length of metal frame 110 is 40mm, and the number of turns of NFC coil (function coil 120) is 4, NFC coil
The distance between 110 inside of outside and metal frame is 2mm.The difference of smart machine and smart machine in Fig. 1 is only in Fig. 3
There is no metal frame.In conjunction with referring to figs. 2 and 3, the smart machine 100 in Fig. 2 including metal frame 110 is not than including metal in Fig. 3
The NFC antenna magnetic-field component of the smart machine 100 of frame 110 reduces about 25%, it is seen then that metal frame 110 significantly affects smart machine
100 antenna performance.
In some embodiments, smart machine includes annular and closed metal frame and antenna modules.Antenna modules include setting
In the function coil in metal frame, function coil is electrically connected with metal frame, so that metal frame becomes a part of antenna modules.By
It is electrically connected in function coil with metal frame, this influence such as GPS (Global Positioning System, global positioning system),
The antenna for communicating such as bluetooth, WiFi (Wireless Fidelity, Wireless Fidelity) is using metal frame as the radiation of antenna
Body.Moreover, maximum only half metal frame can just be converted into a part of antenna modules, do not utilized by antenna modules that
Part metals frame can also generate the reverse current with electric current in function coil, this cannot effectively weaken or offset metal frame to antenna
Influence.
To solve the above-mentioned problems, some embodiments provide a kind of smart machines for the disclosure, comprising: cyclic annular and closed
Metal frame and the antenna modules in metal frame.Wherein, antenna modules include: pcb board, function coil, resonance coil and
Capacitor.Pcb board is equipped with functional chip.Function coil includes two feeding points, is electrically connected with functional chip.Capacitor is set to resonance
Two ends of coil, resonance coil are set between function coil and metal frame, are used for and function coil resonant inducing.The disclosure
The smart machine that embodiment provides, by being set to resonance coil between function coil and metal frame, and two of resonance coil
End is equipped with capacitor, in function coil working, to make resonance coil and function coil resonant inducing, and generates and function coil
The identical electric current in direction effectively to weaken or offset metal frame because of the magnetic field caused by reverse current, and then guarantees antenna modules
It works normally.In addition, antenna modules are not using the metal frame as radiator, this not only makes resonance coil effectively weaken or support
Disappear influence of the metal frame to antenna modules, also simplifies the structure setting of antenna modules, and metal frame is not influenced to be set as it
His antenna.
The smart machine that the disclosure provides includes but is not limited to: mobile phone, tablet computer, iPad, digital broadcast terminal, message
Transceiver, game console, Medical Devices, body-building equipment, personal digital assistant, intelligent wearable device, other intelligent families
Occupy product etc..Wherein, intelligent wearable device includes but is not limited to wrist-watch, bracelet, finger ring etc..
Fig. 4 show the partial structure sectional view of disclosure smart machine 200 shown according to an exemplary embodiment.Figure
5 show the partial structure sectional view of disclosure smart machine 200 shown according to an exemplary embodiment.In conjunction with reference Fig. 4
And Fig. 5, smart machine 200 include: cyclic annular and closed metal frame 210 and the antenna modules 220 in metal frame 210.
Wherein, antenna modules 220 include pcb board 221 (Printed Circuit Board, printed circuit board), it is function coil 222, humorous
Shake coil 223, capacitor 224.
Metal frame 210 can be the rules such as circular annular form structure, square ring structure (referring to Fig. 4) or triangle cyclic structure
Or irregular structure, the disclosure are not especially limited this.In one embodiment, the shell of smart machine 200 can be complete
For metal material, metal frame 210 is a part of shell.In another embodiment, metal frame 210 can be with other materials such as
The shell of plastics composition smart machine 200.It should be noted that metal frame 210 is closed ring-type based on the considerations of to appearance
Structure, namely it is not provided with opening.
Pcb board 221 can may be rigid circuit board for flexible circuit board, and the disclosure is not especially limited this.PCB
Plate 221 is equipped with functional chip, and functional chip is connect by specific match circuit with two feeding points 225 of function coil 222,
With the work of control function coil 222.Pcb board 221 can be connect by fixing pieces such as screws with the inner wall of metal frame 210, with solid
Due in metal frame 210.It is electrically connected it should be noted that may be present between pcb board 221 and metal frame 210, to play ground connection effect
Fruit, but electrical connection is not present between metal frame 210 and function coil 222 and resonance coil 223.In one embodiment,
When metal frame 210 is square ring structure, pcb board 221 can be fixedly connected with the four corners of metal frame 210.
Function coil 222 can be NFC coil or WPC coil.The working frequency of NFC coil is 13.56MHz, can be supported
Read-write mode and card mold intend operating mode.For example, read-write mode includes reading bus card remaining sum and supplementing with money to it.Card mold intends Working mould
Formula includes using as bus card, bank card, credit card, Payment Card, gate inhibition's key, airport boarding verifying equipment etc..WPC coil
Working frequency be 110-205KHz.In one embodiment, function coil 222 is helicoidal structure, the circle of function coil 222
Number is multiturn, such as can be 2 circles, 3 circles, 4 circles, 5 circles, 6 circles etc..
With continued reference to Fig. 4, capacitor 224 can be set to two ends of resonance coil 223.Resonance coil 223 is set to functional line
Between circle 222 and metal frame 210, it is used for and 222 resonant inducing of function coil.Illustratively, when function coil 222 works,
Circulate clockwise electric current in function coil 222, function coil 222 and 223 resonant inducing of resonance coil, resonance coil
Circulate clockwise electric current in 223, and circulate anticlockwise electric current in metal frame 210.The magnetic that resonance coil 223 generates
With metal frame 210 generate magnetic direction on the contrary, with weaken or offset metal frame 210 generate reverse interference magnetic field, this
Under the premise of the smart machine has aesthetic appearance, it ensure that antenna modules 220 can work normally.In addition, antenna modules 220
Not using the metal frame 210 as radiator, this not only makes resonance coil 223 effectively weaken or offset 210 pairs of days of metal frame
The influence of line mould group 220, also simplifies the structure setting of antenna modules 220, and does not influence the metal frame 210 other days are arranged
Line.
In one embodiment, capacitor 224 can be directly welded in the end of resonance coil 223.Illustratively, resonance line
Two ends of circle 223 are respectively equipped with pad, and capacitor 224 can be welded on pad.In another embodiment, capacitor 224
Set on pcb board 221, resonance coil 223 is connect by connector with capacitor 224.Wherein, connector can be elastic slice.Elastic slice can
It is connect with the pad that two ends with resonance coil 223 are equipped with, and is connect with the capacitor 224 on pcb board 221.Some implementations
In example, resonance coil 223 and function coil 222 can be set in flexible substrate, by making capacitor 224 be set to pcb board 221, and be led to
It crosses elastic slice and resonance coil 223 is led into capacitor 224, facilitate setting capacitor 224, and be easy to make capacitor 224 and resonance coil 223
End connection.
It should be noted that the working frequency of function coil 222, the resonance frequency cooperated with resonance coil 223 and capacitor 224
Rate is close, for example resonance coil 223 and the resonance frequency of the cooperation of capacitor 224 are the 90%- of the working frequency of function coil 222
When 110%, resonance coil 223 and capacitor 224 and function coil 222 just can resonant inducings.
In one embodiment, resonance coil 223 and function coil 222 are set on substrate flexible.Resonance coil 223
The ipsilateral or resonance coil 223 and function coil 222 that substrate can be set to function coil 222 are set on the two sides of substrate.The disclosure
This is not especially limited, setting can be easy.
In one embodiment, with continued reference to Fig. 5, antenna modules 220 further include: magnetosphere 226, be set to pcb board 221 with
Between function coil 222 and between pcb board 221 and resonance coil 223.Wherein, magnetosphere 226 can be Ferrite Material.
In some embodiments, the inductance of function coil 222 and resonance coil 223 can be increased by the way that magnetosphere 226 is arranged, enhance day
The antenna performance of line mould group.
Fig. 6 show disclosure NFC days at the 15mm of smart machine surface shown according to an exemplary embodiment
Line magnetic-field component distribution map.Fig. 6 can be the distribution map of the antenna magnetic field component of smart machine 200 shown in Fig. 4, wherein function
Energy coil 222 can be NFC coil, and NFC coil may include three circles, and resonance coil 223 may include a circle, metal frame 210
Side length be 40mm, metal frame 210 to the distance between resonance coil 223 is 2mm.Fig. 2 and Fig. 6 are compared, set in Fig. 6
There is the NFC antenna of smart machine in NFC antenna magnetic-field component ratio Fig. 2 of the smart machine 200 of resonance coil 223 and capacitor 224
Magnetic-field component is big, it is seen that the reverse interference magnetic field of the generation of metal frame 210 can be effectively offset by the way that resonance coil 223 is arranged, and
And also enhance the antenna magnetic field of the smart machine of embodiment of the present disclosure offer.
It should be noted that the resonance frequency of resonance coil 223 is obtained by the following formula: Its
In, C0For the capacitance of capacitor 224, L is the inductance of resonance coil 223.In one embodiment, when function coil 222 is NFC
When coil, in order to enhance the performance of NFC coil, the resonance frequency of resonance coil 223 should be preferred near 13.56MHz, so that
A kind of effect of similar resonance is generated between resonance coil 223 and function coil 222, and is had and the NFC coil same direction
Electric current.In some embodiments, it is formed into a loop due to function coil 222 by specific match circuit and functional chip, internal resistance
Larger, resonance coil 223 and capacitor 224 form primary Ioops, and internal resistance is smaller, this makes caused by (circle) resonance coil 223
Current strength is higher than current strength caused by (circle) function coil 222, therefore magnetic field strength caused by resonance coil 223
It is bigger, it can effectively offset and interfere magnetic field caused by metal frame 210, can also increase the magnetic field strength of antenna modules 220, make day
Line mould group 220 has better antenna performance.
Explanation is needed further exist for, in Fig. 6, it is 13.56MHz that the resonance frequency of resonance coil 223, which is not stringent,
If being strictly 13.56MHz, the Distribution of Magnetic Field intensity in Fig. 6 will be apparent from enhancing.In practical application, can be by resonance
The resonance frequency of coil 223 adjusts near 13.56MHz, such as 15.5MHz, so that the smart machine has the bandwidth of double frequency,
And then antenna modules 220 is enable to cover the frequency band of entire 13-16MHz, increase the bandwidth of function antenna with this, extension is read
It writes with different operating frequency bus card, and then promotes user experience.
In one embodiment, with continued reference to Fig. 4, resonance coil 223 is cyclic structure or helicoidal structure, resonance coil
223 are surrounded on side of the function coil 222 towards metal frame 210.In some embodiments, the structure of the resonance coil 223 is simple,
It is easy to obtain, conducive to the manufacturing of the antenna modules 220.Moreover, the resonance coil 223 around function coil 222 can have
Effect weakens or offsets the interference magnetic field that 210 any portion of metal frame generates.In some embodiments, resonance coil 223 and functional line
The structure of circle 222 is similar, to facilitate the wiring of resonance coil 223 Yu function coil 222, is additionally favorable for the beauty of the smart machine,
But also keep any portion of resonance coil 223 equal with any portion of spacing of function coil 222, resonance coil can be made
Effectively resonant inducing between 223 and function coil 222.In other embodiments, the knot of resonance coil 223 and metal frame 210
Structure is similar, to facilitate the wiring of resonance coil 223, is additionally favorable for the beauty of the smart machine, and be conducive to effectively weaken or support
Disappear and interferes magnetic field caused by metal frame 210.
The disclosure provides following several examples about the structure of resonance coil 223:
Illustratively, when resonance coil 223 is cyclic structure, resonance coil 223 is square ring structure, circular annular form knot
One of structure, triangle cyclic structure.It is understood that the resonance coil 223 of cyclic structure includes an at least circle.Work as needs
When enhancing the magnetic field strength of resonance coil 223, multiple resonance coils 223 can be set.
Illustratively, when resonance coil 223 is helicoidal structure, resonance coil 223 is square spiral shape structure, round spiral shell
Revolve one of shape structure, triangle helicoidal structure.It is understood that the number of turns of the resonance coil 223 of helicoidal structure is
An at least circle.
In addition, resonance coil 223 can not also make this specifically for other rules or irregular structure, the embodiment of the present disclosure
It limits.
In one embodiment, resonance coil 223 is helicoidal structure, and the number of turns of resonance coil 223 is at least one.One
In a little embodiments, under the premise of space allows, the resonance coil 223 with multiturn can be used.The antenna of function coil 222
Performance enhances with the increase of 223 the number of turns of resonance coil.Based on formulaIt is found that resonance coil 223
The number of turns when increasing required capacitor 224 will reduce accordingly, such as when the number of turns of resonance coil 223 becomes N circle from 1 circle
When, the value of required capacitor 224 will become original 1/N.
In one embodiment, the number of resonance coil 223 is at least two, and at least two resonance coils 223 is humorous
Vibration frequency is different.In some embodiments, the different resonance coil 223 of at least two frequencies makes antenna modules 220 have multifrequency, with
More broadband is covered, increases flexibility and the practicability of the smart machine 200, and then be suitable for multiple application scenarios.It needs
Bright, at least two resonance coils 223 can be set to side of the functional line circle 222 towards metal frame 210, and at least two is humorous
The coil 223 that shakes is set between metal frame 210 and function coil 222.
In one embodiment, the number of resonance coil 223 is at least two, at least one resonance coil 223 is set to function
Can be between coil 222 and metal frame 210, at least one resonance coil 223 is set to one that function coil 222 deviates from metal frame 210
Side.In some embodiments, the resonance coil 223 between function coil 222 and metal frame 210 can weaken or offset metal frame
Reverse interference magnetic field caused by 210, set on function coil 222 away from 210 side of metal frame resonance coil 223 can enhance with
The interaction of function coil 222 increases the magnetic field strength of function coil 222.In one embodiment, resonance coil 222 is single turn
When, the inside that function coil 222 deviates from metal frame 210 can also be set to.
In one embodiment, the resonance frequency of resonance coil 223 is identical as the working frequency of function coil 222 or not
Together.In some embodiments, when the resonance frequency of resonance coil 223 is identical as the working frequency of function coil 222, resonance coil
223 are worked with 222 resonant inducing of function coil, resonance coil 223 with identical frequency, and then enhance the work of antenna modules 220
Signal strength.In some embodiments, when the working frequency of the resonance frequency of resonance coil 223 and function coil 222 is not identical,
Antenna modules 220 can be worked with two frequencies of resonance coil 223 and function coil 222, this has the antenna modules 220
Double frequency or multifrequency, and then the smart machine 200 is made to cover more wide band bandwidth, increase the flexibility of the smart machine 200 with
Practicability.
In one embodiment, function coil 222 is NFC coil, and the resonance frequency of resonance coil 223 includes 13-
16MHz, such as can be 13MHz, 13.56MHz, 14MHz, 14.5MHz, 15MHz, 15.5MHz, 16MHz etc..Some embodiments
In, in order to increase the read-write mode of NFC coil, by adjusting capacitor 224, the resonance frequency of resonance coil 223 can be made
13.56MHz, conducive to the read-write mode experience of enhancing NFC.In other embodiments, intend work to increase the card mold of NFC coil
Mode can make the resonance frequency 15.5MHz of resonance coil 223 by adjusting capacitor 224, and it is double that this has the smart machine
The bandwidth of frequency experiences the read-write of working frequency close to the bus card of 16MHz conducive to enhancing NFC coil.
In one embodiment, function coil 222 is WPC coil, and the resonance frequency of resonance coil 223 includes 110-
205KHz, such as can be 110KHz, 130KHz, 150KHz, 165KHz, 180KHz, 190KHz, 200KHz, 205KHz etc..One
In a little embodiments, this is conducive to that antenna modules 220 is enable to carry out wireless charging in wider frequency domain.
In some embodiments, above-mentioned antenna modules 220 can also be used to not include in the smart machine of metal frame 210, to increase
Strong frequency bandwidth and magnetic field strength.
In some embodiments, smart machine includes: metal frame, the resonance coil of single turn, pcb board.Wherein, it is set on pcb board
Functional chip.Metal frame is as primary antenna, and two feeding points on metal frame are electrically connected with functional chip, and two feeding points
Between non-180 ° of straight lines.Resonance coil is set in metal frame, and two ends of resonance coil are connected with capacitor.In functional chip
When controlling metal frame work, resonance coil and metal frame resonance, resonance coil generate the same direction current with metal frame.The intelligence is set
It is standby to have the disadvantages that
The connection of metal frame and functional chip limits metal frame as other antenna (GPS, bluetooth and WiFi) radiators
Feasibility.Metal frame generates effective current less than the part of 1/2 perimeter, this cannot make resonance coil generate stronger electric current,
Influence the antenna performance of the smart machine.In addition, functional chip has certain requirement, such as NFC core to the inductance of metal frame
Piece requires the inductance of antenna in 300nH or more, and the inductance for being less than the metal frame of half-turn is difficult to meet this requirement.
The smart machine 200 that some embodiments of the disclosure provide has following difference and effect compared to above-mentioned smart machine
Fruit:
(1) primary antenna in the embodiment of the present disclosure is function coil 222, rather than metal frame 210, can easily be controlled
Inductance value, to meet the requirement to minimum inductance value.
(2) by being equipped with a resonance coil 223 between function coil 222 and metal frame 210 in the embodiment of the present disclosure, and
It is equipped with capacitor 224 in two ends of resonance coil 223, which can generate resonance sense with function coil 222
It answers, and generates the electric current of the same direction, this not only increases antenna performance, can also weaken or to offset 210 pairs of days of metal frame linear
The influence of energy.
(3) in the embodiment of the present disclosure, resonance coil 223 can produce 360 ° of whole loop current, and have stronger electric current strong
Degree, antenna performance are better than the antenna performance of above-mentioned smart machine.
(4) it is not electrically connected between resonance coil 223 and metal frame 210 in the embodiment of the present disclosure, structure is simple, conveniently sets
Count antenna modules, strong applicability.
(5) not using metal frame 210 as primary antenna in the embodiment of the present disclosure, metal frame 210 is not influenced to be set as it
The applicability of his antenna radiator, the smart machine 200 that the embodiment of the present disclosure provides is stronger.
(6) resonance coil 223 and function coil 222 can be made to produce by designing different capacitors 224 in the embodiment of the present disclosure
The raw antenna modules 220 with double frequency or multifrequency.Such as when function coil 222 is NFC coil, the working frequency of NFC coil
For 13.56MHz, by making the resonance frequency 15.5MHz of resonance coil 223, being conducive to the smart machine 200 has good reading
WriteMode and card mold intend operating mode.
(7) the function coil 222 in the embodiment of the present disclosure can be NFC coil, can also be WPC coil.Above-mentioned intelligence is set
It is standby to be only applicable to NFC antenna function.
The above-mentioned each embodiment of the disclosure can complement one another in the case where not generating conflict.
The foregoing is merely the preferred embodiments of the disclosure, not to limit the disclosure, all essences in the disclosure
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of disclosure protection.
Claims (11)
1. a kind of smart machine, which is characterized in that the smart machine includes:
Cyclic annular and closed metal frame；And
Antenna modules are set in the metal frame；
The antenna modules include: pcb board, are equipped with functional chip；
Function coil, including two feeding points, are electrically connected with the functional chip；
Resonance coil and capacitor set on two ends of resonance coil, the resonance coil be set to the function coil with
Between the metal frame, it is used for and the function coil resonant inducing.
2. smart machine according to claim 1, which is characterized in that the resonance coil is cyclic structure or helical form knot
Structure, the resonance coil are surrounded on the side of the function coil towards the metal frame.
3. smart machine according to claim 2, which is characterized in that the resonance coil is square ring structure, circle
One of cyclic structure, triangle cyclic structure；Or
The resonance coil is one of square spiral shape structure, round spiral structure, triangle helicoidal structure.
4. smart machine according to claim 2, which is characterized in that the resonance coil is helicoidal structure, described humorous
The number of turns of vibration coil is an at least circle.
5. smart machine according to claim 2, which is characterized in that the number of the resonance coil is at least two, and
The resonance frequency of at least two resonance coils is different.
6. smart machine according to claim 1, which is characterized in that the number of the resonance coil is at least two, until
A few resonance coil is set between the function coil and the metal frame, at least one described resonance coil is set to institute
State the side that function coil deviates from the metal frame.
7. smart machine according to claim 1, which is characterized in that the resonance frequency of the resonance coil and the function
The working frequency of coil is identical or different.
8. smart machine according to claim 1, which is characterized in that the function coil is NFC coil, the resonance line
The resonance frequency of circle includes 13-16MHz.
9. smart machine according to claim 1, which is characterized in that the function coil is WPC coil, the resonance line
The resonance frequency of circle includes 110-205KHz.
10. -9 described in any item smart machines according to claim 1, which is characterized in that the capacitor is set to the pcb board,
The end of the resonance coil passes through connector and the capacitance connection.
11. -9 described in any item smart machines according to claim 1, which is characterized in that the antenna modules further include: magnetic
Layer is set between the pcb board and the function coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812735.7A CN110429386A (en) | 2019-08-30 | 2019-08-30 | Smart machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812735.7A CN110429386A (en) | 2019-08-30 | 2019-08-30 | Smart machine |
Publications (1)
| Publication Number | Publication Date |
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| CN110429386A true CN110429386A (en) | 2019-11-08 |
Family
ID=68416798
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910812735.7A Withdrawn CN110429386A (en) | 2019-08-30 | 2019-08-30 | Smart machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021212975A1 (en) * | 2020-04-24 | 2021-10-28 | Oppo广东移动通信有限公司 | Antenna apparatus and electronic device |
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Application publication date: 20191108 |