CN209843948U - Double-coil device with wireless charging and near field communication functions - Google Patents
Double-coil device with wireless charging and near field communication functions Download PDFInfo
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- CN209843948U CN209843948U CN201921046328.1U CN201921046328U CN209843948U CN 209843948 U CN209843948 U CN 209843948U CN 201921046328 U CN201921046328 U CN 201921046328U CN 209843948 U CN209843948 U CN 209843948U
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Abstract
The utility model provides a twin coil device with wireless charging and near field communication function, include: the substrate layer is provided with a first side face and a second side face which are oppositely arranged; the wireless charging coil is used for wirelessly charging the terminal and arranged on the first side surface; the near field communication antenna is used for near field communication and arranged on the first side face; and a magnetic layer disposed on the second side surface. The utility model provides a twin coil device with wireless charging and near field communication function, the first side of substrate layer is provided with wireless charging coil and near field communication antenna simultaneously, can satisfy wireless function and the near field communication function of charging simultaneously, with two function module integration in this twin coil device of near field communication and wireless charging, occupation space has been reduced, the second side of substrate layer is equipped with the magnetic layer, can strengthen the magnetic field of near field communication antenna and wireless charging coil, guarantee both normal work.
Description
Technical Field
The utility model belongs to the technical field of the antenna, more specifically say, relate to a twin coil device with wireless charging and near field communication function.
Background
Along with the continuous development of the intelligent terminal, the functions of the intelligent terminal are more and more. Currently, most terminals have a Near Field Communication (NFC) function and a wireless charging function.
Terminals (such as mobile phones) with NFC technology can exchange data under the condition of being close to each other, are integrated and evolved from non-contact Radio Frequency Identification (RFID) and interconnection and intercommunication technology, and realize applications such as mobile payment, electronic ticketing, entrance guard, mobile identity recognition and anti-counterfeiting by integrating functions of an induction type card reader, an induction type card and point-to-point communication on a single chip and utilizing the mobile terminal. Through the NFC function, wireless connection and data sharing can be conveniently realized among a plurality of electronic devices such as mobile phones, PDAs and computers.
The mobile phone is conveniently charged through wireless charging, so that consumers are free from the constraint of wires, and a road is paved for a plurality of portable devices to be charged simultaneously. When a plurality of devices are charged, the positions of the devices with respect to the charger are not limited at all, and thus wireless terminals having a wireless charging function are increasingly introduced into the market.
However, in the existing terminal, the wireless charging function module and the near field communication function module are separately arranged, which occupies a large terminal space and is not beneficial to the internal layout of the terminal.
Disclosure of Invention
An object of the utility model is to provide a twin coil device with wireless charging and near field communication function to solve the wireless functional module that charges and the near field communication functional module that exists among the prior art and taken great terminal space's technical problem.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a dual coil device having wireless charging and near field communication functions, including:
the substrate layer is provided with a first side face and a second side face which are oppositely arranged;
the wireless charging coil is used for wirelessly charging the terminal and arranged on the first side surface;
the near field communication antenna is used for near field communication and arranged on the first side face; and
and the magnetic layer is arranged on the second side surface.
Further, the wireless charging coil and the near field communication antenna are both arranged on the first side face in a spiral shape.
Further, the wireless charging coil is arranged in a space surrounded by the near field communication antenna.
Further, wireless charging coil includes the wire winding and locates respectively two of wire winding both ends feed point that charges, its outer lane department is located to wire winding one end, wire winding other end is worn to the outer lane setting by its inner circle.
Further, the winding is a multi-strand single-sided enameled wire winding or a multi-strand double-sided enameled wire winding.
Further, the near field communication antenna is a flexible circuit board.
Furthermore, the near field communication antenna comprises an antenna wire and two antenna feed points respectively arranged at two ends of the antenna wire.
Further, the substrate layer is an ink layer or a polyimide layer.
Further, the magnetic layer is a ferrite layer.
Further, the total thickness of the double coil device is between 0.29mm and 0.35 mm.
The utility model provides a twin coil device with wireless charging and near field communication function's beneficial effect lies in: compared with the prior art, the utility model discloses twin coil device with wireless charging and near field communication function includes the substrate layer, and the first side of substrate layer is provided with wireless charging coil and near field communication antenna simultaneously, can satisfy wireless function and the near field communication function of charging simultaneously, with two function module integration in this twin coil device that charge near field communication and wireless, occupation space has been reduced, and the second side of substrate layer is equipped with the magnetic layer, can strengthen near field communication antenna and wireless charging coil's magnetic field, guarantee both normal work.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a top view of a first dual-coil device with wireless charging and near field communication functions according to an embodiment of the present invention;
fig. 2 is an exploded view of a second dual-coil device with wireless charging and near field communication functions according to an embodiment of the present invention;
fig. 3 is a front view of a dual-coil device with wireless charging and near field communication functions according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a near field communication antenna; 11-an antenna trace; 12-antenna feed point; 2-a wireless charging coil; 21-winding; 22-charging feed point; 3-a substrate layer; 4-magnetic layer.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, a dual coil device with wireless charging and near field communication functions according to the present invention will now be described. The double-coil device with the functions of wireless charging and near field communication can be used in terminal equipment such as mobile phones and tablets. In this embodiment, the dual coil device having wireless charging and near field communication functions includes a substrate layer 3, a magnetic layer 4, a wireless charging coil 2, and a near field communication antenna 1. Substrate layer 3 has relative first side and the second side that sets up, and the first side of substrate layer 3 is located to wireless charging coil 2 and near field communication antenna 1, and the second side of substrate layer 3 is located to magnetic layer 4. Wireless charging coil 2 can charge for external terminal, be provided with transmitting coil in the external equipment, wireless charging coil 2 is receiving coil, transmitting coil and receiving coil's resonant frequency is the same, still have the oscillator in the external equipment, amplifier circuit, and final stage switch circuit, can add the pulse electricity of high frequency on transmitting coil, be close to when receiving coil also exactly wireless charging coil 2, will induce the electric current, then send the battery of being connected with wireless charging coil 2 through rectification filter circuit and charge. When the near field communication antenna 1 works, an alternating current signal in the terminal is transmitted to the near field communication antenna 1 through feeding, a loop current of a closed loop is formed, and under the action of the magnetic layer 4, the alternating current signal can form a strong electromagnetic field in the direction perpendicular to the first side face, so that the near field communication antenna 1 communicates with external equipment. Optionally, the near field communication antenna 1 radiates outwards through the back cover of the terminal, and accordingly the electromagnetic field formed is also located close to the back cover.
The utility model provides a twin coil device with wireless charging and near field communication function, compared with the prior art, the utility model discloses twin coil device with wireless charging and near field communication function includes substrate layer 3, and the first side of substrate layer 3 is provided with wireless charging coil 2 and near field communication antenna 1 simultaneously, can satisfy wireless charging function and near field communication function simultaneously, with two function module integration in this twin coil device of near field communication and wireless charging, occupation space has been reduced, and the second side of substrate layer 3 is equipped with magnetic layer 4, can strengthen near field communication antenna 1 and wireless charging coil 2's magnetic field, guarantee both normal work.
Referring to fig. 1, as an embodiment of the dual coil device with wireless charging and near field communication functions provided by the present invention, the wireless charging coil 2 and the near field communication antenna 1 are spirally arranged on the first side, so as to reduce the thickness of the dual coil device and reduce the occupied space thereof as much as possible. The wireless charging coil 2 and the near field communication antenna 1 are connected with external equipment in a mode that a magnetic field is formed by the way that the coils are circularly electrified, so that the coils are both arranged in a spiral shape, and the spiral coil can be in a circular shape, an oval shape, a rectangular shape, a polygonal shape and the like.
Referring to fig. 1, as a specific implementation manner of the dual-coil device with wireless charging and near field communication functions provided by the present invention, the wireless charging coil 2 is disposed in the space enclosed by the near field communication antenna 1. Thus, the planar space occupied by the wireless charging coil 2 and the near field communication antenna 1 can be reduced, the area of the antenna can be reduced as much as possible, and the planar space can be fully utilized.
Referring to fig. 1, as a specific embodiment of the dual coil device with wireless charging and near field communication functions provided by the present invention, the wireless charging coil 2 includes a winding 21 and two charging feed points 22 respectively disposed at two ends of the winding 21, one end of the winding 21 is disposed at an outer ring thereof, and the other end of the winding 21 is disposed by penetrating its inner ring to the outer ring. Two are charged and present the adjacent setting of point 22, all locate the outer lane department of wire winding 21, make things convenient for other circuits at terminal to feed to wireless charging coil 2 through these two charging and present points 22.
Alternatively, the winding 21 is a multi-strand single-sided enameled wire winding or a multi-strand double-sided enameled wire winding, and the type of the winding 21 is not limited herein. The winding wire 21 includes a conductive core and an insulating layer wrapped around the conductive core such that the turns of the winding wire 21 are insulated from each other. The conductive inner core can be selected from copper core and other materials with better conductivity.
Please refer to fig. 1, as the utility model provides a specific implementation of double coil device with wireless charging and near field communication function, near field communication antenna 1 is flexible circuit board, is FPC promptly, is equipped with corresponding line of walking in the FPC, and one side of FPC still can set up the gum, is convenient for paste and locates on substrate layer 3, makes things convenient for the assembly in later stage.
Referring to fig. 1, as an embodiment of the dual coil device with wireless charging and near field communication functions provided by the present invention, the near field communication antenna 1 includes an antenna trace 11 and two antenna feed points 12 respectively disposed at two ends of the antenna trace 11. The two antenna feed points 12 are arranged adjacent to each other, facilitating the other circuits of the terminal to feed the near field communication antenna 1 through the two charging feed points 22.
Optionally, the near field communication antenna 1 includes multiple layers of antenna traces 11, and the antenna traces 11 of each layer are conductively connected through via holes to meet the design requirement of the antenna.
As the utility model provides a concrete implementation mode of twin coil device with wireless charging and near field communication function, substrate layer 3 is printing ink layer or polyimide layer, can play insulating effect, still provides the mounted position for wireless charging coil 2 and near field communication antenna 1.
As the utility model provides a specific implementation of double coil device with wireless charging and near field communication function, magnetic layer 4 is the ferrite layer, and more specifically, for ferrite magnetic matter flexible material layer, can reduce the influence in the magnetic field of metal material to the production of near field communication antenna 1, increases the communication of antenna and the effective distance that charges effectively. One side of the magnetic layer 4 is arranged on the base material layer 3, and the other side of the magnetic layer 4 can be attached to an antenna bracket or a battery.
As the utility model provides a concrete implementation of double coil device with wireless charging and near field communication function, double coil device's gross thickness is between 0.29mm to 0.35 mm. The whole thickness is thinner, the occupied thickness space is smaller, and the internal space of the terminal equipment can be saved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Twin coil device with wireless charging and near field communication function, its characterized in that includes:
the substrate layer is provided with a first side face and a second side face which are oppositely arranged;
the wireless charging coil is used for wirelessly charging the terminal and arranged on the first side surface;
the near field communication antenna is used for near field communication and arranged on the first side face; and
and the magnetic layer is arranged on the second side surface.
2. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 1, wherein: the wireless charging coil and the near field communication antenna are spirally arranged on the first side face.
3. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 2, wherein: the wireless charging coil is arranged in a space surrounded by the near field communication antenna.
4. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 1, wherein: the wireless charging coil comprises a winding and two charging feed points arranged at two ends of the winding respectively, one end of the winding is arranged at the outer ring of the winding, and the other end of the winding is arranged by penetrating the inner ring of the winding to the outer ring.
5. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 4, wherein: the winding is a multi-strand single-sided enameled wire winding or a multi-strand double-sided enameled wire winding.
6. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 1, wherein: the near field communication antenna is a flexible circuit board.
7. The dual-coil device with wireless charging and near-field communication functions as claimed in claim 1, wherein: the near field communication antenna comprises an antenna wire and two antenna feed points which are respectively arranged at two ends of the antenna wire.
8. The dual coil device with wireless charging and near field communication functions as claimed in any one of claims 1 to 7, wherein: the substrate layer is an ink layer or a polyimide layer.
9. The dual coil device with wireless charging and near field communication functions as claimed in any one of claims 1 to 7, wherein: the magnetic layer is a ferrite layer.
10. The dual coil device with wireless charging and near field communication functions as claimed in any one of claims 1 to 7, wherein: the total thickness of the dual coil device is between 0.29mm and 0.35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921046328.1U CN209843948U (en) | 2019-07-06 | 2019-07-06 | Double-coil device with wireless charging and near field communication functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921046328.1U CN209843948U (en) | 2019-07-06 | 2019-07-06 | Double-coil device with wireless charging and near field communication functions |
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| Publication Number | Publication Date |
|---|---|
| CN209843948U true CN209843948U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921046328.1U Active CN209843948U (en) | 2019-07-06 | 2019-07-06 | Double-coil device with wireless charging and near field communication functions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200319A (en) * | 2020-01-16 | 2020-05-26 | 维沃移动通信有限公司 | Electronic device |
| CN112672256A (en) * | 2020-12-11 | 2021-04-16 | Oppo（重庆）智能科技有限公司 | Acoustic-electric conversion device and electronic equipment |
| WO2022127465A1 (en) * | 2020-12-18 | 2022-06-23 | 京东方科技集团股份有限公司 | Display panel, method for manufacturing same, and electronic device |
-
2019
- 2019-07-06 CN CN201921046328.1U patent/CN209843948U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200319A (en) * | 2020-01-16 | 2020-05-26 | 维沃移动通信有限公司 | Electronic device |
| CN112672256A (en) * | 2020-12-11 | 2021-04-16 | Oppo（重庆）智能科技有限公司 | Acoustic-electric conversion device and electronic equipment |
| WO2022127465A1 (en) * | 2020-12-18 | 2022-06-23 | 京东方科技集团股份有限公司 | Display panel, method for manufacturing same, and electronic device |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20201103 Address after: 215300 Room 102, new generation communication technology industrial park, 5, 1689 Zizhu Road, Yushan Town, Kunshan, Suzhou, Jiangsu Patentee after: KUNSHAN YIQU INFORMATION TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: 215300 room 10, plant no.1689-5, Zizhu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshanyuanboxun Communication Technology Co.,Ltd. Patentee before: KUNSHAN YIQU INFORMATION TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |