CN106410400A - Communication device with metal shell and NFC structure thereof - Google Patents
Communication device with metal shell and NFC structure thereof Download PDFInfo
- Publication number
- CN106410400A CN106410400A CN201610908110.7A CN201610908110A CN106410400A CN 106410400 A CN106410400 A CN 106410400A CN 201610908110 A CN201610908110 A CN 201610908110A CN 106410400 A CN106410400 A CN 106410400A
- Authority
- CN
- China
- Prior art keywords
- metal
- nfc
- frame
- metal shell
- back body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 93
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 93
- 238000004891 communication Methods 0.000 title claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 239000012212 insulator Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 abstract description 9
- 229920003023 plastic Polymers 0.000 abstract description 9
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Near-Field Transmission Systems (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention provides a communication device with a metal shell and an NFC structure thereof. The communication device is composed of a metal shell and a plurality of inductance elements. The metal shell of the communication device consists of a top metal frame, a side metal frame and a metal shell body. A plastic region is formed between the top metal frame and the metal shell body; and two breaking points are arranged on the top metal frame. On the one hand, the inductance elements can be connected to the breaking points of the top metal frame to form a closed loop; and on the other hand, because of the low-pass and high-resistance characteristics, the mutual influence between the NFC and a radio frequency antenna is avoided. The communication device has the following advantages: no NFC antenna and ferrite are needed, so that the space is saved and the cost is lowered; the design is simple without any slotting processing, so that the product appearance is not damaged; because of the series inductance units in the loop, the mutual influence between the NFC and the radio frequency antenna is avoided; and radiation is realized by using the metal shell, so that the magnetic field is uniform and the performance is excellent.
Description
Technical field
The present invention relates to NFC antenna, in particular it relates to a kind of be applied to the near-field communication device with metal shell construction
NFC structure and this communication apparatus, particularly to a kind of no FPC (flexible PCB, Flexible based on metal back cover
Printed Circuit) antenna NFC structure.
Background technology
Undoubtedly, in recent years NFC (Near Field Communication) near-field communication technology in electronic product
Application more and more extensive.
Conditional electronic product carries the mode of NFC antenna, is that antenna is attached to plastic shell.This carrying mode work
Skill requires simply, and because plastic housing will not be disturbed to the electromagnetic radiation of NFC antenna or shields, NFC performance is often
Relatively more excellent.
But it is as the outward appearance to electronic product for the people, structural requirement more and more higher, thickness requirement more and more thinner etc., tradition
Cabinet electronic product, due to its plastics outward appearance, mechanical strength, experience etc., can not meet all of user
Demand.Then, metal shell structure electronic product arises at the historic moment.At present almost all of middle and high end electronic product is all to adopt
All-metal or part metals casing appearance.But electromagnetic wave cannot be radiated through metal shell, this also leads to traditional NFC
Antenna is difficult to be coupled with external world's communication apparatus, and communication performance substantially reduces.So solving that there is metal shell structure
Under electronic product, NFC design problem is instantly extremely urgent thing.
Content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of communication apparatus with metal shell and its
NFC structure.
A kind of NFC structure being provided according to the present invention, including metal shell, insulator, inductance element, NFC radio circuit
Module；
Described metal shell includes metal-back body, top metal frame；Metal-back body connects top by insulator
Metal edge frame；
NFC RF circuit module, inductance element, top metal frame connect, and form circuit loop.
Preferably, top metal frame has at one or many places breakpoint, forms multistage framework；
It is connected with one section or multistage framework in described circuit loop.
Preferably, the two ends of breakpoint are all connected into described circuit loop, wherein, are connected with inductance element between the two ends of breakpoint
Or NFC RF circuit module；Or, two ends Zhong Jin one end of breakpoint is connected into described circuit loop.
Preferably, NFC RF circuit module is arranged on metal-back body or insulator.
Preferably, described metal shell includes side metal edge frame；
Side metal edge frame is connected between metal-back body and top metal frame；
The quantity of side metal edge frame is one or more；
Side metal edge frame is connected in described circuit loop.
Preferably, it is connected a side metal between the two ends of metal-back body top margin and the two ends of top metal frame respectively
Frame.
Preferably, side metal edge frame, top metal frame, metal-back body top margin are fitted and connected the difference of insulator respectively
Edge.
Preferably, described circuit loop forms antenna, circuit loop enclosed region formation radiation areas.
Preferably, the surface of metal-back body is complete.
A kind of communication apparatus with metal shell being provided according to the present invention, including above-mentioned NFC structure.
Compared with prior art, the present invention has following beneficial effect：
1, without FPC antenna and ferrite, save space, cost-effective；
2, without slot treatment, design is simple, does not destroy product appearance；
3, there is series inductance in loop, reciprocal influence between NFC and radio-frequency antenna can be avoided；
4, directly utilize metal-back to radiate, field homogeneity, superior performance.
Brief description
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of NFC structure in first embodiment of the invention.
Fig. 2 is the CURRENT DISTRIBUTION schematic diagram of NFC structure in first embodiment of the invention.
Fig. 3, Fig. 4, Fig. 5 are 3 kinds of different arrangement structural representations of NFC structure in second embodiment of the invention.
Fig. 6 is the structural representation of NFC structure in third embodiment of the invention.
Fig. 7, Fig. 8 are 2 kinds of different arrangement structural representations of NFC structure in fourth embodiment of the invention.
In figure：
1 is metal shell, and 11 is metal-back body, and 12 is side metal edge frame, and 13 is top metal frame；
2 is inductance element, the first inductance 21, the second inductance 22, the 3rd inductance 23；
3 is plastic cement region；
4 is NFC RF circuit module.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These broadly fall into the present invention
Protection domain.
A kind of NFC structure being provided according to the present invention, including metal shell, insulator, inductance element, NFC radio circuit
Module；Described metal shell includes metal-back body, top metal frame；Metal-back body connects top metal by insulator
Frame；NFC RF circuit module, inductance element, top metal frame connect, and form circuit loop.Top metal frame has
At one or many places breakpoint, forms multistage framework；It is connected with one section or multistage framework in described circuit loop.The two ends of breakpoint are equal
It is connected into described circuit loop, wherein, between the two ends of breakpoint, be connected with inductance element or NFC RF circuit module；Or, break
Two ends Zhong Jin one end of point is connected into described circuit loop.
NFC RF circuit module is arranged on metal-back body or insulator.Described metal shell includes side metal edges
Frame；Side metal edge frame is connected between metal-back body and top metal frame；The quantity of side metal edge frame is one or more；
Side metal edge frame is connected in described circuit loop.Divide between the two ends of metal-back body top margin and the two ends of top metal frame
Lian Jie not a side metal edge frame.Side metal edge frame, top metal frame, metal-back body top margin are fitted and connected insulator respectively
Different edges.Described circuit loop forms antenna, circuit loop enclosed region formation radiation areas.The surface of metal-back body
Completely.
Thus the present invention is capable of NFC function, without FPC antenna and ferrite, save space, cost-effective；Need not
Slot treatment, design is simple, does not destroy product appearance；There is series inductance in loop, phase between NFC and radio-frequency antenna can be avoided
Mutual impact；Metal-back is directly utilized to radiate, field homogeneity, superior performance.
Below the preference of the present invention is specifically described.
Embodiment 1.
As shown in figure 1, the NFC structure of metal shell that the present invention provides, include metal shell 1, inductance element 2 and exhausted
Edge body；Metal shell 1 includes metal-back body 11, side metal edge frame 12 and top metal frame 13.Top metal frame 13
It is plastic cement region 3 between metal-back body 11.Insulator is made using plastic material, forms isolating metal shell body 11 and top
The plastic cement region of end metal edge frame 13.Inductance element 2 adopts high Q value inductance.The surface of metal-back body is complete, does not slot.
Inductance element 2 includes the first inductance 21, the second inductance 22, the 3rd inductance 23.Have individual at two on top metal frame
Breakpoint, is divided into and is designated as the first breakpoint, the second breakpoint.First breakpoint two ends connect respectively one end of first inductance 21, second
One end of inductance 22；The other end of the first inductance 21, the other end of the second inductance 22 are connected with NFC RF circuit module 4；Second
One the 3rd inductance 23 of series connection between section point two ends.First inductance 21, the second inductance 22 and the 3rd inductance 23 1 aspect are permissible
It is connected at top metal frame breakpoint so that metal-back body 11, side metal edge frame 12 and top metal frame 13 are formed
Closed circuit loop, as antenna；On the other hand it is connected in circuit loop and the high characteristic of low-resistance can be led to by inductance, it is to avoid
Reciprocal influence between NFC and radio-frequency antenna.
As shown in Fig. 2 during work, NFC RF circuit module sends ac current signal and (with counter clockwise current flow trend is
Example), through the first inductance 21, on the left of circuit loop, then arrive metal-back body, due to the Kelvin effect principle of electric current, electric current
Signal can be concentrated and pass on the right side of loop near the edge in plastic cement region 3 through metal-back body, more successively through the 3rd inductance
23rd, the second inductance 22 returns to NFC RF circuit module 4.
Modified in inductance element connected mode or position in the present embodiment, the change case of the present invention can be obtained.
Embodiment 2.
As shown in Fig. 3, Fig. 5, one end that the 3rd inductance 23 is connected to top metal frame 13 disconnects, and is connected to metal-back
Body 11, or as shown in figure 4, one end that the first inductance 21 is connected to top metal frame 13 disconnects, it is connected to metal-back
Body 11, it is possible to obtain three kinds have different circuit, the NFC structure of the present invention of different radiation areas.This serial NFC structure is suitable for
Communication apparatus under the conditions of can not meeting as Fig. 1 in inductance element link position or mode.
Embodiment 3.
As shown in fig. 6, NFC structure is not having condition to utilize both sides metal edge frame 12 and the situation of metal-back body 11 radiation
Under, can directly by the part between the first breakpoint of top metal frame 13 and the second breakpoint be connected after inductance element 2 with NFC
Radio circuit connects.Radiation areas under the present embodiment by top metal frame 13, inductance element 2 and connect top metal side
Cabling composition between frame 13 and inductance element 2, inductance element 2 and NFC radio circuit.
Embodiment 4.
As shown in Figure 7, Figure 8, equally, in the case of the top metal frame 13 only one of which breakpoint of communication apparatus, still
The NFC structure of two kinds of present invention can be formed.
Embodiment 2, embodiment 3, embodiment 4 can be understood as the change case of embodiment 1.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or change, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combine.
Claims (10)
1. a kind of NFC structure is it is characterised in that include metal shell, insulator, inductance element, NFC RF circuit module；
Described metal shell includes metal-back body, top metal frame；Metal-back body connects top metal by insulator
Frame；
NFC RF circuit module, inductance element, top metal frame connect, and form circuit loop.
2. NFC structure according to claim 1 is it is characterised in that top metal frame has at one or many places breakpoint, shape
Become multistage framework；
It is connected with one section or multistage framework in described circuit loop.
3. NFC structure according to claim 1 is it is characterised in that the two ends of breakpoint are all connected into described circuit loop, its
In, it is connected with inductance element or NFC RF circuit module between the two ends of breakpoint；Or, two ends Zhong Jin one end of breakpoint is even
Enter described circuit loop.
4. NFC structure according to claim 1 it is characterised in that NFC RF circuit module be arranged on metal-back body or
On person's insulator.
5. NFC structure according to claim 1 is it is characterised in that described metal shell includes side metal edge frame；
Side metal edge frame is connected between metal-back body and top metal frame；
The quantity of side metal edge frame is one or more；
Side metal edge frame is connected in described circuit loop.
6. NFC structure according to claim 5 is it is characterised in that the two ends of metal-back body top margin and top metal side
A side metal edge frame is connected respectively between the two ends of frame.
7. NFC structure according to claim 5 it is characterised in that side metal edge frame, top metal frame, metal-back this
Body top margin is fitted and connected the different edges of insulator respectively.
8. it is characterised in that described circuit loop forms antenna, circuit loop is enclosed NFC structure according to claim 1
Region formation radiation areas.
9. NFC structure according to claim 1 is it is characterised in that the surface of metal-back body is complete.
10. a kind of communication apparatus with metal shell is it is characterised in that include any one of claim 1 to 9
NFC structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908110.7A CN106410400B (en) | 2016-10-18 | 2016-10-18 | Communication equipment with metal shell and NFC structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908110.7A CN106410400B (en) | 2016-10-18 | 2016-10-18 | Communication equipment with metal shell and NFC structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106410400A true CN106410400A (en) | 2017-02-15 |
| CN106410400B CN106410400B (en) | 2023-09-26 |
Family
ID=58011933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610908110.7A Active CN106410400B (en) | 2016-10-18 | 2016-10-18 | Communication equipment with metal shell and NFC structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106410400B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921033A (en) * | 2017-03-02 | 2017-07-04 | 上海德门电子科技有限公司 | Electronic equipment frame antenna structure |
| CN108288753A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN108288754A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| GB2559621A (en) * | 2017-02-14 | 2018-08-15 | Kiroco Ltd | Wearable device, system and method |
| CN112583959A (en) * | 2019-09-30 | 2021-03-30 | 华为技术有限公司 | Radio frequency cable and electronic equipment |
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| EP2988368A1 (en) * | 2014-08-21 | 2016-02-24 | Samsung Electronics Co., Ltd. | Antenna apparatus and electronic device having the same |
| CN105514624A (en) * | 2015-12-23 | 2016-04-20 | 广东欧珀移动通信有限公司 | Mobile terminal antenna system and mobile terminal |
| CN105633556A (en) * | 2016-03-07 | 2016-06-01 | 上海安费诺永亿通讯电子有限公司 | Near field communication (NFC) device and mobile terminal based on same |
| CN105826679A (en) * | 2016-05-12 | 2016-08-03 | 惠州硕贝德无线科技股份有限公司 | Near-field antenna apparatus for three-segment type metal rear cover |
-
2016
- 2016-10-18 CN CN201610908110.7A patent/CN106410400B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117483A1 (en) * | 2014-08-21 | 2015-08-13 | 中兴通讯股份有限公司 | Antenna system |
| EP2988368A1 (en) * | 2014-08-21 | 2016-02-24 | Samsung Electronics Co., Ltd. | Antenna apparatus and electronic device having the same |
| CN104577334A (en) * | 2015-02-11 | 2015-04-29 | 小米科技有限责任公司 | Antenna module and mobile terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2559621A (en) * | 2017-02-14 | 2018-08-15 | Kiroco Ltd | Wearable device, system and method |
| CN106921033A (en) * | 2017-03-02 | 2017-07-04 | 上海德门电子科技有限公司 | Electronic equipment frame antenna structure |
| CN108288753A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN108288754A (en) * | 2017-10-27 | 2018-07-17 | 珠海市魅族科技有限公司 | Antenna module and terminal device |
| CN112583959A (en) * | 2019-09-30 | 2021-03-30 | 华为技术有限公司 | Radio frequency cable and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106410400B (en) | 2023-09-26 |
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