CN108695948B - Wireless charging device based on NFC technology - Google Patents
Wireless charging device based on NFC technology Download PDFInfo
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- CN108695948B CN108695948B CN201810715153.2A CN201810715153A CN108695948B CN 108695948 B CN108695948 B CN 108695948B CN 201810715153 A CN201810715153 A CN 201810715153A CN 108695948 B CN108695948 B CN 108695948B
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- heat dissipation
- switch
- wireless
- nfc
- transmitting
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- 238000005516 engineering process Methods 0.000 title claims abstract description 8
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging device based on an NFC technology, which comprises a wireless transmitting mechanism, a wireless receiving mechanism and an NFC signal processing mechanism, wherein the wireless transmitting mechanism is used for transmitting a wireless signal to a wireless receiving mechanism; the wireless transmitting mechanism comprises a current control module and a transmitting coil which are connected in series; the wireless receiving structure comprises a shell, a plurality of brackets are longitudinally arranged in the shell, each bracket comprises a plurality of hydraulic cylinders, the hydraulic cylinders are connected with the brackets, receiving coils are mounted on the brackets, the hydraulic cylinders at corresponding positions on adjacent brackets are connected end to end, the adjacent receiving coils are connected in series or in parallel through a first switch, a second switch and a third switch, and electric energy is transmitted between the transmitting coil and the receiving coil through electromagnetic waves; the NFC signal processing mechanism comprises an NFC signal transmission module used for transmitting control signals, and a charging control module used for sending control instructions to the first switch, the second switch, the third switch and the hydraulic cylinder. The invention can improve the defects of the prior art and improve the universality of the wireless charging device.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging device based on an NFC technology.
Background
The wireless charging utilizes the electromagnetic induction principle to transmit electric energy through the change of an electromagnetic field. The induction coil can produce charging current after receiving the electromagnetic wave, and current wireless charging device all designs to a certain specific product, and the commonality is poor.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a wireless charging device based on the NFC technology, which can overcome the defects of the prior art and improve the universality of the wireless charging device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows.
A wireless charging device based on NFC technology comprises,
the NFC antenna comprises a wireless transmitting mechanism, a wireless receiving mechanism and an NFC signal processing mechanism;
the wireless transmitting mechanism comprises a current control module and a transmitting coil which are connected in series;
the wireless receiving structure comprises a shell, a plurality of brackets are transversely arranged in the shell, each bracket comprises a plurality of hydraulic cylinders, the hydraulic cylinders are connected with the brackets, receiving coils are mounted on the brackets, the hydraulic cylinders at corresponding positions on adjacent brackets are connected end to end, the adjacent receiving coils are connected in series or in parallel through a first switch, a second switch and a third switch, and electric energy is transmitted between the transmitting coil and the receiving coil through electromagnetic waves;
the NFC signal processing mechanism comprises a NFC antenna and a NFC antenna,
an NFC signal transmission module for transmitting control signals,
and the charging control module is used for sending control instructions to the first switch, the second switch, the third switch and the hydraulic cylinder.
Preferably, a heat dissipation top plate is fixed to the top of the supporting plate, a groove is formed in the heat dissipation top plate, a receiving coil is arranged in the groove through a heat conduction silica gel layer, a sliding rail is fixed to the bottom of the supporting plate, a heat dissipation bottom plate is connected to the sliding rail in a sliding mode, the heat dissipation top plate is in contact with the heat dissipation bottom plate at the bottom of the supporting plate above the heat dissipation top plate, a first heat dissipation hole and a second heat dissipation hole are formed in the heat dissipation top plate and the heat dissipation bottom plate respectively, a fan is arranged at the.
Preferably, the top of the heat-conducting silica gel layer is fixed with a first fin, the bottom of the heat-radiating bottom plate is fixed with a second fin, the first fin is in sliding insertion connection with the second fin, the second heat-radiating hole penetrates through the heat-radiating bottom plate, and an opening at the bottom end of the second heat-radiating hole is located between the second fins.
Preferably, a corrugated pipe is connected between the heat dissipation bottom plate and the supporting plate, and heat conduction grease is filled in the corrugated pipe.
Preferably, the first heat dissipation holes are spirally arranged around the heat-conducting silica gel layer, the openings at the tops of the first heat dissipation holes are located on the top surface of the heat dissipation top plate, flow guide holes are formed in the supporting plate, and the openings at the bottoms of the first heat dissipation holes are communicated with the flow guide holes.
Preferably, the outer end of the third heat dissipation hole is provided with a U-shaped bent portion, and a filter screen is fixed to the outer end of the U-shaped bent portion.
Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: according to the invention, the plurality of receiving coils are arranged, and series-parallel connection of different receiving coils is realized through on-off matching of the switch, so that flexible adjustment of charging current and charging voltage can be realized, and the universality of the wireless charging device is improved. Because the position of receiving coil can change, lead to traditional heat radiation structure can't carry out abundant heat dissipation to receiving coil. In view of this, through setting up the heat conduction silica gel layer for dispel the heat to receiving coil, the radiating bottom plate contacts with heat conduction silica gel layer, utilizes second radiating hole to carry out the heat dissipation processing to heat conduction silica gel layer, and heat conduction grease is used for dispelling the heat in receiving coil's below. The first heat dissipation holes are used for heat dissipation treatment on the side faces of the heat conduction silicon rubber layer, and the airflow flowing efficiency of the first heat dissipation holes can be improved by the aid of the flow guide holes. The U-shaped bending part with the filter screen can reduce external dust entering the charging device, and keeps the inside of the charging device clean.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present invention.
Fig. 2 is a circuit diagram of adjacent take-up coil connections in one embodiment of the invention.
Fig. 3 is a structural view of a receiving coil mounting portion in an embodiment of the present invention.
FIG. 4 is a schematic view of a third louver according to an embodiment of the present invention.
In the figure: 1. a current control module; 2. a transmitting coil; 3. a housing; 4. a bracket; 5. a hydraulic cylinder; 6. a support plate; 7. a receiving coil; 8. a first switch; 9. a second switch; 10. a third switch; 11. a heat dissipation top plate; 12. a groove; 13. a heat conductive silica gel layer; 14. a slide rail; 15. a heat dissipation base plate; 16. a first heat dissipation hole; 17. a second heat dissipation hole; 18. a fan; 19. a third heat dissipation hole; 20. a first fin; 21. a second fin; 22. a bellows; 23. a flow guide hole; 24. a U-shaped bent portion; 25. filtering with a screen; 26. an NFC signal transmission module; 27. a charging control module; 28. a heat conductive metal rod.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Referring to fig. 1-4, one embodiment of the present invention includes,
a wireless charging device based on NFC technology comprises,
the NFC antenna comprises a wireless transmitting mechanism, a wireless receiving mechanism and an NFC signal processing mechanism;
the wireless transmitting mechanism comprises a current control module 1 and a transmitting coil 2 which are connected in series;
the wireless receiving structure comprises a shell 3, a plurality of brackets 4 are transversely arranged in the shell 3, each bracket 4 comprises a plurality of hydraulic cylinders 5, each hydraulic cylinder 5 is connected with a corresponding bracket 6, each bracket 6 is provided with a receiving coil 7, the hydraulic cylinders 5 at corresponding positions on adjacent brackets 4 are connected end to end, the adjacent receiving coils 7 are connected in series or in parallel through a first switch 8, a second switch 9 and a third switch 10, and electric energy is transmitted between the transmitting coil 2 and the receiving coils 7 through electromagnetic waves;
the NFC signal processing mechanism comprises a NFC antenna and a NFC antenna,
an NFC signal transmission module 26 for transmitting a control signal,
and the charging control module 27 is used for sending control commands to the first switch 8, the second switch 9, the third switch 10 and the hydraulic cylinder 5.
The heat dissipation device is characterized in that a heat dissipation top plate 11 is fixed to the top of the supporting plate 6, a groove 12 is formed in the heat dissipation top plate 11, the groove 12 is internally provided with a receiving coil 7 through a heat conduction silica gel layer 13, a sliding rail 14 is fixed to the bottom of the supporting plate 6, a heat dissipation bottom plate 15 is connected to the sliding rail 14 in a sliding mode, the heat dissipation top plate 11 is in contact with the heat dissipation bottom plate 15 at the bottom of the supporting plate 6 above the heat dissipation top plate 11, a first heat dissipation hole 16 and a second heat dissipation hole 17 are respectively formed in the heat dissipation top plate 11 and the heat dissipation bottom plate 15. The heat-conducting silica gel layer 13 is fixed with first fin 20 at the top, and the radiating bottom plate 15 is fixed with second fin 21 at the bottom, and first fin 20 and second fin 21 slip grafting, second louvre 17 run through radiating bottom plate 15, and the opening of second louvre 17 bottom is located between second fin 21. A corrugated pipe 22 is connected between the heat dissipation bottom plate 15 and the supporting plate 6, and the corrugated pipe 22 is filled with heat conduction grease. The first heat dissipation holes 16 are spirally arranged around the heat-conducting silica gel layer 13, the openings at the tops of the first heat dissipation holes 16 are located on the top surface of the heat dissipation top plate 11, the support plate 6 is internally provided with flow guide holes 23, and the openings at the bottoms of the first heat dissipation holes 16 are communicated with the flow guide holes 23. The outer end of the third heat dissipation hole 19 is provided with a U-shaped bent portion 24, and the outer end of the U-shaped bent portion 24 is fixed with a filter screen 25.
In addition, a heat conducting metal rod 28 is fixed at the top end of the second heat dissipation hole 17, and the heat conducting metal rod 28 is inserted into the heat conducting grease. The whole heat dissipation device is designed into a whole by taking the heat-conducting silica gel layer 13 as the center, and can adapt to the up-and-down displacement of the receiving coil 7, so that the good heat dissipation of the receiving coil 7 is realized.
According to the invention, the NFC signal transmission module 26 is used for transmitting charging state signals of the charging transmitting terminal and the charging receiving terminal, and the charging control module 27 is used for sending corresponding control instructions to the first switch 8, the second switch 9, the third switch 10 and the hydraulic cylinder 5 according to the charging state.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A wireless charging device based on NFC technique which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the NFC antenna comprises a wireless transmitting mechanism, a wireless receiving mechanism and an NFC signal processing mechanism;
the wireless transmitting mechanism comprises a current control module (1) and a transmitting coil (2) which are connected in series;
the wireless receiving structure comprises a shell (3), a plurality of brackets (4) are transversely arranged in the shell (3), each bracket (4) comprises a plurality of hydraulic cylinders (5), each hydraulic cylinder (5) is connected with a supporting plate (6), receiving coils (7) are installed on the supporting plates (6), the hydraulic cylinders (5) at corresponding positions on adjacent brackets (4) are connected end to end, the adjacent receiving coils (7) are connected in series or in parallel through a first switch (8), a second switch (9) and a third switch (10), and electric energy is transmitted between a transmitting coil (2) and the receiving coils (7) through electromagnetic waves;
the NFC signal processing mechanism comprises a NFC antenna and a NFC antenna,
an NFC signal transmission module (26) for transmitting a control signal,
the charging control module (27) is used for sending control commands to the first switch (8), the second switch (9), the third switch (10) and the hydraulic cylinder (5);
a heat dissipation top plate (11) is fixed to the top of the supporting plate (6), a groove (12) is formed in the heat dissipation top plate (11), a receiving coil (7) is arranged in the groove (12) through a heat conduction silica gel layer (13), a sliding rail (14) is fixed to the bottom of the supporting plate (6), a heat dissipation bottom plate (15) is connected to the sliding rail (14) in a sliding mode, the heat dissipation top plate (11) is in contact with the heat dissipation bottom plate (15) at the bottom of the supporting plate (6) above the heat dissipation top plate (11), a first heat dissipation hole (16) and a second heat dissipation hole (17) are formed in the heat dissipation top plate (11) and the heat dissipation bottom plate (15) respectively, a fan (18) is arranged at the bottom of;
a first fin (20) is fixed at the top of the heat conduction silica gel layer (13), a second fin (21) is fixed at the bottom of the heat dissipation bottom plate (15), the first fin (20) is inserted with the second fin (21) in a sliding manner, the second heat dissipation hole (17) penetrates through the heat dissipation bottom plate (15), and an opening at the bottom end of the second heat dissipation hole (17) is positioned between the second fins (21);
a corrugated pipe (22) is connected between the heat dissipation bottom plate (15) and the supporting plate (6), and heat conduction grease is filled in the corrugated pipe (22);
the first heat dissipation holes (16) are spirally arranged around the heat conduction silica gel layer (13), openings at the tops of the first heat dissipation holes (16) are located on the top surface of the heat dissipation top plate (11), flow guide holes (23) are formed in the supporting plate (6), and the openings at the bottoms of the first heat dissipation holes (16) are communicated with the flow guide holes (23).
2. The NFC-technology-based wireless charging apparatus according to claim 1, wherein: the outer side end of the third heat dissipation hole (19) is provided with a U-shaped bent part (24), and a filter screen (25) is fixed at the outer side end of the U-shaped bent part (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715153.2A CN108695948B (en) | 2018-07-03 | 2018-07-03 | Wireless charging device based on NFC technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715153.2A CN108695948B (en) | 2018-07-03 | 2018-07-03 | Wireless charging device based on NFC technology |
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| Publication Number | Publication Date |
|---|---|
| CN108695948A CN108695948A (en) | 2018-10-23 |
| CN108695948B true CN108695948B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715153.2A Active CN108695948B (en) | 2018-07-03 | 2018-07-03 | Wireless charging device based on NFC technology |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462013B (en) * | 2018-11-14 | 2021-03-30 | 吉林吉大通信设计院股份有限公司 | Device based on electronic equipment backshell radiation NFC signal |
| CN113068417B (en) * | 2019-10-28 | 2023-08-22 | 华为技术有限公司 | Wireless charging receiving end, electronic equipment and transmitting end |
| CN114030381B (en) * | 2021-11-09 | 2023-12-05 | 重庆前卫无线电能传输研究院有限公司 | High-power wireless energy transmission system of heavy-load AGV trolley and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984348A (en) * | 2012-10-31 | 2013-03-20 | 中兴通讯股份有限公司 | Terminal and switch method thereof |
| CN103117813A (en) * | 2012-10-18 | 2013-05-22 | 中兴通讯股份有限公司 | User terminal and method controlling switching of near field communication (NFC) unit and wireless charging unit |
| CN107994684A (en) * | 2016-10-26 | 2018-05-04 | 中国科学院苏州纳米技术与纳米仿生研究所 | Wireless charging receiving coil circuit |
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2018
- 2018-07-03 CN CN201810715153.2A patent/CN108695948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117813A (en) * | 2012-10-18 | 2013-05-22 | 中兴通讯股份有限公司 | User terminal and method controlling switching of near field communication (NFC) unit and wireless charging unit |
| CN102984348A (en) * | 2012-10-31 | 2013-03-20 | 中兴通讯股份有限公司 | Terminal and switch method thereof |
| CN107994684A (en) * | 2016-10-26 | 2018-05-04 | 中国科学院苏州纳米技术与纳米仿生研究所 | Wireless charging receiving coil circuit |
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Effective date of registration: 20200910 Address after: 3 / F, building A2, block a, Fangxing science and Technology Park, No. 13, Baonan Road, Longgang street, Longgang District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN WEIERLISI TECHNOLOGY Co.,Ltd. Address before: 125001 unit 1, 2-24 building, Lianyang Road, Lianshan, Huludao, Liaoning, China No. 501 Applicant before: HULUDAO ZHIDUODUO TECHNOLOGY Co.,Ltd. |
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