WO2020010884A1 - 一种无线充电器和充电垫 - Google Patents

一种无线充电器和充电垫 Download PDF

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Publication number
WO2020010884A1
WO2020010884A1 PCT/CN2019/081637 CN2019081637W WO2020010884A1 WO 2020010884 A1 WO2020010884 A1 WO 2020010884A1 CN 2019081637 W CN2019081637 W CN 2019081637W WO 2020010884 A1 WO2020010884 A1 WO 2020010884A1
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WO
WIPO (PCT)
Prior art keywords
support plate
rigid support
rigid
charging pad
flexible
Prior art date
Application number
PCT/CN2019/081637
Other languages
English (en)
French (fr)
Inventor
朱勇发
陈晓威
邱锦
黄雪妍
丁涛
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19833800.6A priority Critical patent/EP3764506B1/en
Publication of WO2020010884A1 publication Critical patent/WO2020010884A1/zh
Priority to US17/096,025 priority patent/US20210066948A1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2804Printed windings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices

Definitions

  • the present application relates to the technical field of wireless charging, and in particular, to a wireless charger and a corresponding charging pad.
  • wireless charging technology to charge portable electronic devices.
  • using the same wireless charger can charge different types of portable electronic devices.
  • a coil is built into the charging pad of the wireless charger, and the coil generates a magnetic field after being energized, and the portable electronic device with a wireless charging function located in the magnetic field will be charged.
  • the area of such a charging pad with a built-in coil is relatively large and it is inconvenient to carry. Therefore, providing a small-sized wireless charger applied to wireless charging has become a difficult problem to be solved.
  • the present application provides a wireless charger, including a roller shaft and a charging pad.
  • the charging pad can be wound on the roller shaft. After the winding, the wireless charger has a relatively small volume, so it is convenient to carry. Accordingly, the present application also provides a charging pad applied to the wireless charger.
  • the present application provides a wireless charger. It includes a cylindrical roller shaft and a charging pad, one side of the charging pad is embedded in the roller shaft, and the charging pad can be wound on the roller shaft along the side edge.
  • the side wall of the roller shaft includes a plurality of planes and a fillet between two adjacent planes.
  • the charging pad includes a first planar coil and a first rigid support plate.
  • the first planar coil includes an adjacent first rigid portion and a first flexible portion, and the first rigid portion is located on an upper surface of the first rigid support plate. Wherein, the metal circuit located in the first flexible portion is bendable.
  • a region where the first rigid support plate is located covers a first plane of the roller shaft, and a region where the first flexible portion is located covers the roller shaft.
  • the first round When the charging pad is wound on the roller shaft, a region where the first rigid support plate is located covers a first plane of the roller shaft, and a region where the first flexible portion is located covers the roller shaft. The first round.
  • the first plane is one plane among a plurality of planes included in the sidewall of the roller shaft.
  • the side wall of the roller shaft includes a plurality of planes and there is a rounded corner between two adjacent planes
  • the side wall of the roller shaft includes a plurality of rounded corners.
  • the aforementioned first rounded corner is one of a plurality of rounded corners included in a side wall of the roller shaft.
  • the wireless charger When the charging pad is wound around the roller, the wireless charger will have a relatively small volume. Therefore, compared with the wireless charger in the prior art, the wireless charger provided in this embodiment is more portable.
  • the charging pad further includes a second rigid support plate.
  • the first planar coil further includes a second rigid portion adjacent to the first flexible portion.
  • the first flexible portion is located between the first rigid portion and the second rigid portion.
  • the second rigid portion is located on an upper surface of the second rigid support plate.
  • the second plane is a plane among a plurality of planes included in the sidewall of the roller shaft. And the second plane is adjacent to the first round, and the first round is located between the first plane and the second plane.
  • the wires on the rigid portion on the surface of the rigid support plate can be thicker than the metal lines on the flexible portion, that is, the resistance of the wires on the rigid portion is less than that of the metal lines on the flexible portion.
  • the first planar coil straddles the first rigid support plate and the second rigid support plate, which will enable the wireless charger provided in this embodiment to have a larger current, thereby providing higher charging efficiency.
  • the charging pad further includes a second planar coil and a third rigid support plate.
  • the second planar coil includes an adjacent third rigid portion and a second flexible portion, the third rigid portion is located on an upper surface of the third rigid support plate, and the metal circuit located in the second flexible portion is Bendable.
  • the region where the third rigid support plate is located in the charging pad and the region where the second rigid support plate is located are the same area.
  • the second flexible portion and the first flexible portion are located on both sides of the third rigid portion, respectively, when the charging pad is wound on the roller shaft, an area where the second flexible portion is located Covering the second round of the roller.
  • the charging pad of the wireless charger further includes a second planar coil, and the second planar coil partially overlaps the first planar coil. It should be known that the magnetic field generated by the first planar coil in the overlapping portion and the magnetic field generated by the second planar coil in the overlapping portion will be superimposed, so the area corresponding to the overlapping portion will have a larger area. The magnetic field strength, in other words, the area corresponding to the overlapping portion will have a higher charging efficiency.
  • the charging pad further includes a fourth rigid support plate.
  • the second planar coil further includes a fourth rigid portion adjacent to the second flexible portion.
  • the second flexible portion is located between the third rigid portion and the fourth rigid portion.
  • the fourth rigid portion is located on an upper surface of the fourth rigid support plate.
  • the wireless charger since the first planar coil and the second planar coil are provided at the same time, and the other parts of the second planar coil except the third rigid part are located in one of the first planar coils. Side, so the wireless charger has a larger charging area. Further, the presence of the fourth rigid support plate can reduce the resistance of the second planar coil, thereby further increasing the current passing through the second planar coil, so that the second planar coil has a higher charging efficiency. .
  • the lower surface of the third rigid support plate faces the upper surface of the second rigid support plate, and the The upper surface of the third rigid support plate faces away from the upper surface of the second rigid support plate, and the upper surface of the second rigid support plate and the upper surface of the first rigid support plate are located on the same plane.
  • the first rigid support plate and the second rigid support plate are located on the same layer.
  • the lower surface of the second rigid support plate faces the upper surface of the third rigid support plate
  • the The upper surface of the second rigid support plate faces away from the upper surface of the third rigid support plate
  • the upper surface of the third rigid support plate and the upper surface of the first rigid support plate are located on the same plane.
  • the first rigid support plate and the third rigid support plate are located on the same layer.
  • the upper surface of the fourth rigid support plate and the upper surface of the third rigid support plate are located on the same plane.
  • the upper surface of the fourth rigid support plate and the upper surface of the second rigid support plate are located on the same plane.
  • edges of other sides of the charging pad are provided with multiple magnetic fields. article.
  • the magnetic stripe is adsorbed on the roller shaft.
  • the magnetic strip on the first charging pad is adsorbed on the roller, and the magnetic strip on the Nth charging pad is adsorbed on the N-1th layer On the charging pad, where N is an integer greater than or equal to two.
  • the design of the magnetic strip is used to avoid the situation that the holder of the wireless charger is stretched due to the careless touching of the charging pad after the charging pad is curled.
  • the present application provides a charging pad.
  • the charging pad includes a first planar coil and a first rigid support plate.
  • the first planar coil includes an adjacent first rigid portion and a first flexible portion.
  • the first rigid portion is located on an upper surface of the first rigid support plate.
  • the metal line at the first flexible portion is bendable.
  • the charging pad since the first flexible portion is bendable, the charging pad is still foldable.
  • the folded charging pad has a relatively small volume, so it has good portability.
  • the charging pad further includes a second rigid support plate.
  • the first planar coil further includes a second rigid portion adjacent to the first flexible portion. It should be noted that the first flexible portion is located between the first rigid portion and the second rigid portion, and the second rigid portion is located on an upper surface of the second rigid support plate.
  • the first planar coil spans two rigid support plates, which is advantageous in that it is easy to manufacture.
  • each metal line located in the first flexible portion includes a first end portion near the first rigid portion, and A second end portion of the second rigid portion and a main body portion between the first end portion and the second end portion.
  • the first end portion is connected to a wire of the first rigid portion
  • the second end portion is connected to a wire of the second rigid portion.
  • the sum of the thickness of the lead wire located in the first rigid portion and connected to the first end portion and the thickness of the first end portion and the thickness of the first rigid support plate is greater than or equal to the body portion thickness of. Further, the sum of the thickness of the wire located in the second rigid portion and connected to the second end portion and the joint portion of the second end portion and the thickness of the second rigid support plate is also greater than or equal to The thickness of the body portion is described.
  • the sum of the thickness of the joint portion and the corresponding rigid support plate at either end of the main body portion is greater than the thickness of the main body portion, so the thickness of the charging pad does not depend on the thickness of the main body portion. Therefore, the thickness of the main body portion does not affect the overall thickness of the charging pad.
  • the width of the conductive wire located in the first rigid portion and connected to the first end portion is the same as the width of the first end portion.
  • the width of the conductive wire located in the second rigid portion and connected to the second end portion is the same as the width of the second end portion.
  • the width of the conductive line in the first rigid portion is the same as the width of the conductive line in the second rigid portion.
  • the main body portion includes a plurality of metal segments connected in series. Wherein, two adjacent metal segments are hinged.
  • the plurality of metal segments include a first metal segment, a second metal segment, and at least one metal segment located between the first metal segment and the second metal segment. One end of the first metal segment is engaged with the first end, and one end of the second metal segment is engaged with the second end.
  • the main body portion located in the first flexible portion is hinged from at least three metal segments.
  • the design makes the main body part foldable, thereby making the charging pad foldable.
  • the first end portion includes a horizontal portion, a vertical portion, and a corner located between the horizontal portion and the vertical portion .
  • the first metal segment includes a hook portion, an extension portion, and a corner located between the hook portion and the extension portion.
  • the horizontal portion of the first end portion is attached to the upper surface of the first rigid support plate and is connected to a wire in the first rigid portion.
  • the vertical portion of the first end portion is from the A corner of the first end portion extends in a direction away from an upper surface of the first rigid support plate.
  • the engaging portion of the first metal segment crosses the vertical portion of the first end portion, and the extending portion of the first metal segment is away from the first portion from a corner of the first metal segment.
  • the rigid support plate extends toward a side wall of the first flexible portion, and an extension of the first metal segment is hinged to an adjacent metal segment.
  • connection method not only achieves a solid connection method, but also helps reduce the complexity of the process.
  • a sidewall of the vertical portion of the first end portion faces an inner surface of the extension portion of the first metal segment
  • a side wall of the engaging portion of the first metal segment faces an inner surface of a horizontal plane of the first end portion.
  • the second end portion includes a horizontal portion, a vertical portion, and a portion between the horizontal portion and the vertical portion. Corner.
  • the second metal segment includes a hook portion, an extension portion, and a corner located between the hook portion and the extension portion.
  • the horizontal portion of the second end portion is attached to the upper surface of the second rigid support plate and is connected to a wire in the second rigid portion.
  • the vertical portion of the second end portion is from the The corner of the second end portion extends upward from the upper surface of the second rigid support plate.
  • the engaging portion of the second metal segment crosses the vertical portion of the second end portion, and the extending portion of the second metal segment moves away from the second metal segment from the corner of the second metal segment.
  • the rigid support plate extends in a direction of a side wall of the first flexible portion, and an extension of the second metal segment is hinged to an adjacent metal segment.
  • connection method provided in this embodiment also achieves a firm connection method, and also Conducive to reducing the complexity of the process.
  • a sidewall of the vertical portion of the second end portion faces an inner surface of the extension portion of the second metal segment
  • a side wall of the engaging portion of the second metal segment faces an inner surface of a horizontal portion of the second end portion.
  • the main body portion is a metal wire. It should be known that the metal wire is flexible.
  • the outer surface of the metal wire has an insulating layer.
  • the outer surface of the metal wire is covered with an insulating skin or coated with an insulating paint.
  • an edge of the first rigid support plate near the first flexible portion has a step.
  • the upper surface of the first rigid support plate includes a top surface and a step surface, wherein the top surface of the first rigid support plate protrudes from the step surface of the first rigid support plate.
  • the first end portion has a first horizontal portion, a first vertical portion, and a second horizontal portion, wherein the first vertical portion of the first end portion is located at the first horizontal portion of the first end portion and Between the second horizontal sections.
  • the first horizontal portion of the first end portion is attached to the top surface of the first rigid support plate and is connected to a wire located in the first rigid portion.
  • the second horizontal portion of the first end portion is attached to the stepped surface of the first rigid support plate and is connected to the first end of one of the metal lines located in the first flexible portion.
  • the first vertical portion of the first end portion is attached to the upper side wall of the first rigid support plate, and the upper side wall of the first rigid support plate is located on the top surface of the first rigid support plate and Between the step surfaces and facing the first flexible portion.
  • the design of the step structure is conducive to reducing the height of the main body portion, thereby reducing the thickness of the charging pad.
  • the thickness of the region where the top surface of the first rigid support plate is located is twice the thickness of the region where the step surface of the first rigid support plate is located.
  • the charging pad further includes a first fixing rod.
  • the first fixing rod spans a plurality of second horizontal portions of the first end portion, and along the length direction of the first fixing rod, the first fixing rod is fixed to the first rigid support plate. Step surface.
  • the first fixing rod is used for fixing the first end portion.
  • the second rigid support plate has a step near the edge of the first flexible portion, and the second The upper surface of the rigid support plate includes a top surface and a step surface, and the top surface of the second rigid support plate protrudes from the step surface of the second rigid support plate.
  • the second end portion has a third horizontal portion, a second vertical portion, and a fourth horizontal portion, and the second vertical portion of the second end portion is located at the third horizontal portion and the fourth horizontal portion of the second end portion. Between the horizontal sections.
  • the third horizontal portion of the second end portion is attached to the top surface of the second rigid support plate and is connected to a wire located in the second rigid portion.
  • the fourth horizontal portion of the second end portion is attached to the step surface of the second rigid support plate and is connected to the second end of one of the metal lines located in the first flexible portion.
  • the metal circuit includes a first end and a second end opposite to the first end.
  • the second vertical portion of the second end portion is attached to the upper side wall of the second rigid support plate.
  • An upper side wall of the second rigid support plate is located between a top surface and a step surface of the second rigid support plate, and faces the first flexible portion.
  • the design of the step structure is beneficial to reduce the height of the main body portion, thereby reducing the thickness of the charging pad.
  • the thickness of the region where the top surface of the second rigid support plate is located is twice the thickness of the region where the step surface of the second rigid support plate is located.
  • the charging pad further includes a second fixing rod.
  • the second fixing rod spans a fourth horizontal portion of the plurality of second end portions.
  • the second fixing rod is fixed to a stepped surface of the second rigid support plate along a length direction of the second fixing rod.
  • the second fixing rod is used for fixing the second end portion.
  • the charging pad further includes a second planar coil and a third rigid support plate.
  • the second planar coil includes an adjacent third rigid portion and a second flexible portion, wherein the third rigid portion is located on an upper surface of the third rigid support plate.
  • the metal circuit located in the second flexible portion is bendable.
  • the third rigid support plate and the second rigid support plate are stacked, and the second flexible portion and the first flexible portion are located on both sides of the fourth rigid portion, respectively.
  • the charging pad includes a first planar coil and a second planar coil, and there is an overlapping portion between the first planar coil and the second planar coil.
  • the first planar coil and the second planar coil can charge the electronic device at the same time, thereby improving the charging efficiency.
  • the magnetic field range generated jointly by the first and second planar coils is larger than the magnetic field range generated by the first planar coil alone, the position of the electronic device on the charging pad is more flexible.
  • the lower surface of the third rigid support plate faces the upper surface of the second rigid support plate, and the third The upper surface of the rigid support plate faces away from the upper surface of the second rigid support plate.
  • the upper surface of the second rigid support plate and the upper surface of the first rigid support plate are located on the same plane.
  • the third rigid support plate is stacked above the second rigid support plate, that is, the first rigid portion and the second rigid portion of the first planar coil are located in the same plane.
  • the third rigid support plate and the second rigid support plate are stacked, and the design can reduce the volume of the charging pad.
  • the lower surface of the second rigid support plate faces the upper surface of the third rigid support plate
  • the second The upper surface of the rigid support plate faces away from the upper surface of the third rigid support plate.
  • the upper surface of the third rigid support plate and the upper surface of the first rigid support plate are located on the same plane.
  • the second rigid support plate is stacked on the third rigid support plate, and the design can reduce the volume of the charging pad.
  • the charging pad further includes a fourth rigid support plate, and accordingly, the second planar coil further includes A fourth rigid portion adjacent to the second flexible portion, the second flexible portion is located between the third rigid portion and the fourth rigid portion.
  • the fourth rigid portion is located on an upper surface of the fourth rigid support plate, and an upper surface of the fourth rigid support plate and an upper surface of the third rigid support plate are located on a same plane.
  • the charging pad further includes a fourth rigid support plate.
  • the second planar coil further includes a second rigid coil.
  • a fourth rigid portion adjacent to the flexible portion, and the second flexible portion is located between the third rigid portion and the fourth rigid portion.
  • the fourth rigid portion is located on an upper surface of the fourth rigid support plate, and an upper surface of the fourth rigid support plate and an upper surface of the second rigid support plate are located on a same plane.
  • the present application provides another wireless charger. It includes a cylindrical roller shaft and a charging pad, one side of the charging pad is embedded in the roller shaft, and the charging pad can be wound on the roller shaft along the side edge.
  • the side wall of the roller shaft includes a plurality of planes and a fillet between two adjacent planes.
  • the charging pad includes a first planar coil, a first printed circuit board, and a first flexible circuit board.
  • the first planar coil includes adjacent first and second portions, the first portion is located on a surface or inside of the first printed circuit board, and the second portion is located on a surface or inside of the first flexible circuit board. internal.
  • a region where the first printed circuit board is located covers a first plane of the roller, and a region where the first flexible circuit board is located covers the roller.
  • the area where the printed circuit board is located in the charging pad is a rigid area
  • the area where the flexible circuit board is located is a flexible area, wherein the flexible area is bendable. Therefore, in the wireless charger provided in this embodiment, the charging pad can be wound on a roller, has a relatively small volume, and is convenient to carry.
  • the charging pad further includes a second printed circuit board.
  • the first planar coil further includes a third portion adjacent to the second portion, and the second portion is located between the first portion and the third portion, wherein the third portion A portion is located on the surface or inside of the second printed circuit board.
  • the first planar coil spans two printed circuit boards. Since the metal circuit located in the printed circuit board can be relatively thick, it has a relatively small resistance. Therefore, in this embodiment, the first planar coil can have a relatively small resistance, and thus can pass a larger current, and has a higher charging efficiency.
  • edges of other sides of the charging pad are provided with multiple magnetic stripes.
  • the magnetic stripe is adsorbed on the roller shaft.
  • the magnetic stripe on the first charging pad is adsorbed on the roller, and the magnetic strip on the Nth charging pad is adsorbed on the N-1th layer.
  • N is an integer greater than or equal to two.
  • the design of the magnetic strip is used to avoid the situation that the holder of the wireless charger is stretched due to the careless touching of the charging pad after the charging pad is curled.
  • the present application provides another charging pad.
  • the charging pad includes a first planar coil, a first printed circuit board, and a first flexible circuit board.
  • the first planar coil includes adjacent first and second portions, the first portion is located on a surface or inside of the first printed circuit board, and the second portion is located on a surface or inside of the first flexible circuit board. internal.
  • the charging pad provided in this embodiment includes a first flexible circuit board, so the charging pad is bendable.
  • the charging pad further includes a second printed circuit board.
  • the first planar coil further includes a third portion adjacent to the second portion. And the second part is located between the first part and the third part. Wherein, the third portion is located on a surface or inside of the second printed circuit board.
  • the first planar coil spans two printed circuit boards, which is advantageous in that it is easy to manufacture and has high charging efficiency.
  • the present application provides yet another wireless charger. It includes a cylindrical roller shaft and a charging pad, one side of the charging pad is embedded in the roller shaft, and the charging pad can be wound on the roller shaft along the side edge, and the roller shaft
  • the side wall of the base includes a plurality of planes and a rounded corner between two adjacent planes;
  • the charging pad includes a first planar coil, a first printed circuit board, a second printed circuit board, and a first flexible circuit board.
  • the first planar coil is located on a surface or inside of the first flexible circuit board.
  • a first portion of a flexible circuit board is laminated in the first printed circuit board, and a second portion is laminated in the second printed circuit board.
  • the first flexible circuit board is divided by the first portion and A portion other than the second portion is located between the first portion and the second portion;
  • the area where the first printed circuit board is located covers the first plane of the roller shaft, and the area where the other parts are located covers the first surface of the roller shaft.
  • the corners of the second printed circuit board cover the second plane of the roller.
  • the charging pad can be wound on the roller, so that the wireless charger will have a relatively small volume.
  • edges of other sides of the charging pad are provided with multiple magnetic stripes.
  • the magnetic stripe is adsorbed on the roller shaft.
  • the magnetic stripe on the first charging pad is adsorbed on the roller, and the magnetic strip on the Nth charging pad is adsorbed on the N-1th layer.
  • N is an integer greater than or equal to two.
  • the design of the magnetic strip is used to avoid the situation that the holder of the wireless charger is stretched due to the careless touching of the charging pad after the charging pad is curled.
  • the present application provides yet another charging pad.
  • the charging pad includes a first planar coil, a first printed circuit board, a second printed circuit board, and a first flexible circuit board.
  • the first planar coil is located on a surface or inside the first flexible circuit board.
  • a first portion of a flexible circuit board is laminated in the first printed circuit board, and a second portion is laminated in the second printed circuit board.
  • the first flexible circuit board is divided by the first portion and all A portion other than the second portion is located between the first portion and the second portion.
  • the charging pad is bendable, and the wireless charger to which the charging pad is applied can be curled and have a small volume.
  • FIG. 1A is a schematic diagram of a wireless charger provided by the present application.
  • FIG. 1B is a schematic diagram when the wireless charger shown in FIG. 1A is in a curled state.
  • FIG. 2A is a schematic diagram of another wireless charger provided by the present application.
  • FIG. 2B is a partially enlarged view of one end of the roller shaft 201 shown in FIG. 2A.
  • FIG. 3 is a schematic diagram of still another wireless charger provided by the present application.
  • FIG. 4A is a schematic diagram of a charging pad provided by the present application.
  • FIG. 4B is a schematic diagram of another charging pad provided by the present application.
  • FIG. 4C is a schematic structural diagram of a planar coil located in a charging pad provided in the present application.
  • FIG. 5A is a cross-sectional view of the charging pad shown in FIG. 4B along the CC 'direction.
  • FIG. 5B is a partially enlarged view of the component 505 shown in FIG. 5A.
  • FIG. 6A is another partially enlarged side view of the component 505 shown in FIG. 5A.
  • FIG. 6B is another partially enlarged top view of the component 505 shown in FIG. 5A.
  • FIG. 7A is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 7B is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 7C is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 8A is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 8B is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 9 is a schematic diagram of still another charging pad provided by the present application.
  • FIG. 10A is a schematic diagram of a wireless charger provided by the present application.
  • FIG. 10B is a schematic diagram of a control structure in the wireless charger shown in FIG. 10A.
  • FIG. 11A is a schematic diagram of another wireless charger provided by the present application.
  • FIG. 11B is a schematic diagram of a control structure in the wireless charger shown in FIG. 11A.
  • FIG. 12A is an application scenario diagram of the wireless charger provided by the present application.
  • FIG. 12B is another application scenario diagram of the wireless charger provided by the present application.
  • FIG. 13 is a schematic diagram of a wireless charger provided by the present application.
  • FIG. 14 is a flowchart of a wireless charging method provided by the present application.
  • the wireless charger 100 includes a roller shaft 101 and a charging pad 102, and the charging pad 102 can be wound on the roller shaft 101.
  • FIG. 1B illustrates the structure of the wireless charger after the charging pad 102 is wound on the roller shaft 101.
  • the roller shaft 101 has a narrow opening 108, and one side of the charging pad 102 is fixedly embedded in the roller shaft 101 through the opening 108.
  • the charging pad 102 can be rolled up along the side edge by layer. It is wound on this roller shaft 101.
  • the roller shaft 101 is usually made of a relatively rigid material, such as metal or plastic.
  • the roller shaft 101 is columnar (as shown in FIG. 1A, the roller shaft 101 may extend in the S direction). Further, the cross section or the end surface of the roller shaft 101 is a polygon, and there are chamfers between two adjacent sides in the polygon. In other words, the side surface of the roller shaft 101 has a plurality of planes 1021, and there is a rounded corner 1022 between two adjacent planes. As shown in FIG. 1B, when the charging pad 102 is wound on the roller shaft 101, the rigid area of the charging pad 102 is attached to the plane of the roller shaft 101, and the flexible area of the charging pad 102 is attached to This roller 101 is rounded.
  • the so-called rigid region refers to a region that cannot be bent
  • the so-called flexible region is a region that can be bent.
  • the so-called rigid area or flexible area refers to on the charging pad, it needs to be understood in conjunction with the description of the charging pad below.
  • the charging pad described in this application may be rectangular, and the rigid region may also be rectangular, and the length of the rigid region is the same as the width of the charging mat. Along the length direction of the charging pad, there are a plurality of rigid regions placed in parallel and spaced apart. It should be known that the width of the flexible region between two adjacent rigid regions depends on the width of the rounded corners corresponding to the flexible region.
  • the first layer corresponds In the partial charging pads, the width of the flexible region between each adjacent two rigid regions is the same; in the corresponding partial charging mat of the second layer, the width of the flexible region between each adjacent two rigid regions is also identical. However, the width of each flexible region in the partial charging pad corresponding to the first layer will be smaller than the width of each flexible region in the partial charging pad corresponding to the second layer.
  • a plurality of magnetic stripes 105 a are distributed on the first edge of the charging pad 102 and the second edge corresponding to the first edge in the present application.
  • the first edge and the second edge both intersect the edge of the charging pad 102 embedded in the narrow opening 108 of the roller shaft 101.
  • the first edge and the second edge are both perpendicular to the edge of the charging pad 102 embedded in the narrow opening 108 of the roller shaft 101.
  • the magnetic stripe 105a on the charging pad 102 corresponding to the innermost layer is adsorbed on the roller shaft 101 and the charging pad corresponding to the Nth layer
  • the magnetic strip 105a on 102 is adsorbed on a portion of the charging pad 102 corresponding to the N-1th layer. It should be noted that when the charging pad 102 is wound around the roller 101 in multiple layers, the innermost layer is the first layer, so it is easy to know that the Nth layer is located outside the N-1th.
  • the third edge of the charging pad 102 also has at least one magnetic strip 105b.
  • the third edge is opposite to the edge of the charging pad 102 embedded in the narrow opening 108 of the roller shaft 101.
  • the magnetic stripe 105 b of the third edge is adsorbed on the roller shaft 101.
  • the magnetic stripe 105 b of the third edge is adsorbed on the charging pad 102 of the second outer layer wound on the roller shaft 101.
  • the wireless charging power unit 106 in addition to the narrow opening 108 provided on the roller shaft 101, it may further include a wireless charging power unit 106, and the wireless charging power unit 106 includes a control circuit and a driver for wireless charging. Circuit, etc.
  • the coil 103 in the charging pad 102 is connected to the wireless charging power unit 106.
  • the roller shaft 101 also has a printed circuit board 107 inside, and the coil 103 is connected to the wireless charging power unit 106 through the printed circuit board 107.
  • the printed circuit board 107 is flexible. It should be known that when there is no printed circuit board 107 inside the roller shaft 101, the coil 103 can be connected to the wireless charging power unit 106 through a metal wire.
  • an interface 109 is provided on one end surface of the roller shaft 101.
  • the interface 109 can be docked with an interface of a cable, so as to receive current through the cable.
  • the interface 109 may be a Type-C interface or a Lightning interface.
  • the inside of the roller shaft 101 may further include a battery 110, and the battery 110 is configured to provide a current to the coil 103 in the charging pad 102.
  • FIG. 2A it shows another wireless charger 200 provided by the present application.
  • One end surface of the roller shaft 201 has a groove 211 and a USB interface 212, and the groove 211 is used to receive the USB interface 212.
  • the USB interface 212 has opposite outer and inner surfaces. When the USB interface 212 is received in the groove 211, the outer surface of the USB interface 212 is flush with the end surface of the roller shaft 201.
  • the inner surface of the USB interface 212 has a magnet 213a, and correspondingly, the bottom of the groove 211 has a magnet 213b. Among them, the magnet 213a and the magnet 213b are attracted to each other. It should be known that the USB interface 212 is fixed in the groove 211 by mutual attraction between the magnet 213a and the magnet 213b.
  • the inside of the roller shaft 201 has a wireless charging power unit 206, a wire reel 209, and a cable 210.
  • the cable 210 is wound around the cable reel 209. One end of the cable 210 is connected to the wireless charging power unit 206 after passing through the cable reel 209, and the other end is connected to the USB interface 212.
  • the wireless charger 300 further includes a power adapter 311.
  • the power adapter 311 is fixed on the roller shaft 301 by a mechanical structure such as a buckle. It should be noted that the power adapter 311 is also cylindrical, or the power adapter 311 may also extend in the S direction. Further, the first end surface of the power adapter 311 faces the first end surface of the roller shaft 301 and is in contact with the first end surface of the roller shaft 301.
  • the first end surface of the power adapter 311 has a magnet 313a.
  • the first end surface of the roller shaft 301 has a magnet 313b.
  • the magnet 313a and the magnet 313b are attracted to each other.
  • the fixing between the power adapter 311 and the roller shaft 301 is achieved by mutual attraction between the magnets 313a and 313b.
  • the second end surface of the power adapter 311 has a plug 312.
  • the plug 312 is foldable. Generally, the two legs of the plug 312 are received in a receiving portion located on the second end surface. When the plug 312 is inserted into a socket, the two legs of the plug 312 extend from the receiving portion of the second end surface. And plug into the socket. It should be noted that when the two legs of the plug 312 are folded and stored in the receiving portion, the second end surface of the power adapter 311 is flat.
  • the roller shaft 301 also has a cord reel 309 and a cable 310 inside.
  • the cable 310 is wound around the wire reel 309.
  • One end of the cable 310 is connected to the wireless charging power unit 306 after passing through the wire reel 309, and the other end is connected to the power adapter 311.
  • the power adapter 311 needs to be pulled out, the cable 310 can be wound out and extended along the wire reel 309. Therefore, the power adapter 311 can be pulled out a distance not exceeding the length of the cable 310.
  • FIGS. 4A and 4B illustrate a charging pad 402 provided in the present application.
  • the charging pad 402 includes at least one first planar coil 403 and a first rigid support plate 404a.
  • the first planar coil 403 includes adjacent first rigid portions 403a and first flexible portions 403b.
  • the first rigid portion 403a includes a plurality of wires
  • the first flexible portion 403b includes a plurality of metal lines.
  • the wires located in the first rigid portion 403a and the metal lines located in the first flexible portion 403b are connected one to one.
  • two ends of most of the wires located in the first rigid portion 403a are respectively connected to two ends of a metal line located in the first flexible portion 403b, and one or two wires are also present in the first rigid portion 403a.
  • One end of these wires is connected to one end of a metal line located in the first flexible portion 403b, and the other end is connected to a wireless charging power unit in the roller shaft.
  • the shape of the first planar coil may be a circle, an oval, or a polygon. It should be noted that the shape of other planar coils (for example, the second planar coil) mentioned in the present application may also be circular, oval, or polygonal. Optionally, the shapes of the plurality of planar coils located in the charging pad are the same.
  • the first rigid portion 403a is located on an upper surface of the first rigid support plate 404a. Further, the first rigid portion 403a is tiled on the upper surface of the first rigid support plate 404a. It should be noted that the so-called upper surface or lower surface in this application is used to distinguish different surfaces. The so-called “upper surface of the first rigid support plate 404a" here is based on the display orientation of FIG. 4A on the current page. The description of the upper surface or the lower surface will also appear in other parts of this application, please refer to the explanations here, and the other parts will not be repeated.
  • the first rigid support plate 404a may be made of resin or plastic.
  • the first rigid supporting plate 404a may be a printed circuit board.
  • the first rigid supporting portion 403a may be printed or etched on an upper surface of the first rigid supporting plate 404a.
  • the printed circuit board may be a multilayer board.
  • the metal circuit in the first flexible portion 403 b is bendable.
  • the metal circuit located in the first flexible portion 403b may be a flexible metal wire, a Litz wire, a metal hinge, or the like.
  • the metal located on the first flexible portion 403b and the wires located on the first rigid portion 403a are metal wires (such as copper wires) of the same material
  • the metal located on the first flexible portion 403b is The wiring is thinner than the wire located in the first rigid portion 403a (or the cross-sectional area of the metal wire located in the first flexible portion 403b is smaller than the cross-sectional area of the wire located in the first rigid portion 403a), so that the The metal circuit of the flexible portion 403b has a greater flexibility than a wire located in the first rigid portion 403a.
  • the width of the wire located in the first rigid portion should be as large as possible. Accordingly, the distance between two adjacent metal lines located in the first rigid portion should be as small as possible. Optionally, the distance between two adjacent wires in the first rigid portion may be greater than 0 and less than or equal to 0.5 mm.
  • the distance between two adjacent wires within the first rigid portion 403a smoothly transitions from Y to X, Y is greater than X, and X is greater than 0.
  • a distance between two adjacent wires in the first rigid portion 403a near the first flexible portion 403b is Y, and a distance away from the first flexible portion 403b is X.
  • the area where the first rigid support plate is located covers the first plane of the roller
  • the second flexible The area where the part is located covers the first round of the roller shaft.
  • the side wall of the roller shaft includes a plurality of planes, and the first plane is one of the planes. Further, since each adjacent two planes have a rounded corner, the side wall of the roller shaft has a plurality of rounded corners, and accordingly, the first rounded corner is a rounded corner of the plurality of rounded corners.
  • the so-called multiple planes usually refer to more than three, but the case of two or even one is not excluded.
  • the roller shaft has only one plane, the roller shaft also has only one rounded corner, the one plane is the first plane, and the one rounded corner is the first rounded corner.
  • the roller shaft has two planes, the roller shaft has two rounded corners.
  • the charging pad may be cut along an edge of the first rigid support plate and in a direction perpendicular to the charging pad, and a part of the obtained charging pad is an area where the first rigid support plate is located.
  • the charging pad 402 provided in the present application further includes a second rigid support plate 404c.
  • a second rigid portion 403c of the first planar coil 403 is located on an upper surface 404c of the second rigid support plate.
  • the first flexible portion 403b is located between the first rigid portion 403a and the second rigid portion 403c, and is adjacent to the first rigid portion 403a and the second rigid portion 403c, respectively.
  • the second rigid portion 403c also includes a plurality of wires, and the wires located in the second rigid portion 403c and the metal circuits in the first flexible portion 403b are one-to-one Connected.
  • first rigid portion 403a, the first flexible portion 403b, and the second rigid portion 403c are all part of the first planar coil 403. The connection relationship between them is based on the winding direction of the lines in the first planar coil 403.
  • the distance between two adjacent wires in the second rigid portion is greater than 0 and less than or equal to 0.5 mm.
  • the second rigid portion has the same or similar structure as the first rigid portion. Therefore, reference may be made to the description of the first rigid portion in this application to deepen the understanding of the second rigid portion.
  • FIG. 5A is a sectional view obtained by cutting the charging pad along CC ′ in FIG. 4B
  • FIG. 5B is a partially enlarged top view of the flexible region 505 shown in FIG. 5A.
  • each metal line located in the first flexible portion 503b includes a first end portion 5031, and A second end portion 5032 opposite to the first end portion 5031 and a main body portion 5033 located between the first end portion 5031 and the second end portion 5032.
  • the first end portion 5031 is connected to a wire located on the first rigid portion 503a
  • the second end portion 5032 is connected to a wire located on the second rigid portion 503c (not shown in FIG. 5B). ).
  • the first end portion In order to reduce the influence of the thickness of the main body portion on the overall thickness of the charging pad, optionally, after the first end portion is connected to a wire located in the first rigid portion, the first end portion The sum of the thickness of the joint portion of the lead wire and the thickness of the first rigid support plate within the first rigid portion is greater than or equal to the thickness of the main body portion. Further, after the second end portion is connected to a wire in the second rigid portion, the thickness of the second end portion and a joint portion of the wire in the second rigid portion The sum of the thickness with the thickness of the second rigid support plate is greater than or equal to the thickness of the main body portion. It is worth noting that the direction in which the thickness of each joint portion is located and the direction in which the thickness of the main body portion is located are the same as the direction in which the thickness of the first rigid support plate is located.
  • the width of the first end portion is the same as the width of the wire located in the first rigid portion.
  • the width of the second end portion is the same as the width of the lead wire located in the second rigid portion.
  • the width of the first end portion is the same as the width of the second end portion.
  • the thickness of the first end portion and the second end portion should be as thin as possible.
  • the thickness of the first end portion and the second end portion are both greater than or equal to 0.2 mm. It should be known that the direction in which the thicknesses of the first end portion and the second end portion are located is the same as the direction in which the thickness of the first rigid support plate (or the second rigid support plate) is located.
  • a distance between two adjacent first ends is greater than or equal to 0.5 mm.
  • a distance between two adjacent second ends is greater than or equal to 0.5 mm.
  • the main body portion 5033 includes a plurality of metal segments connected in series, and each adjacent two metal segments are hinged to each other at their ends.
  • the orientation of the side walls of the plurality of metal segments is the same as the orientation of the upper surface of the first rigid support plate.
  • the plurality of metal segments include a first metal segment, a second metal segment, and at least one metal segment located between the first metal segment and the second metal segment.
  • One end of the first metal segment is hinged to one end of the first end portion, and the other end of the first end portion is close to the first rigid portion.
  • One end and the other end of the first end portion are opposite to each other.
  • one end of the second metal segment is hinged to one end of the second end portion, and the other end of the second end portion is close to the second rigid portion.
  • One end and the other end of the second end portion are also opposite.
  • the third metal segment is located between the first metal segment and the second metal segment, and the other end of the first metal segment and the One end of the third metal segment is hinged, and the other end of the second metal segment is hinged with the other end of the third metal segment. That is, from the first end portion to the second end portion, the first metal segment, the second metal segment, and the third metal segment are in this order.
  • the first end portion 5031 includes a horizontal portion, a vertical portion, and a corner located between the horizontal portion and the vertical portion.
  • the first metal segment includes a hook portion, an extension portion, and a corner located between the hook portion and the extension portion.
  • the first end portion 5031 is U-shaped, and the first metal segment is U-shaped.
  • the horizontal portion of the first end portion 5031 is attached to the upper surface of the first rigid support plate 504a, and the vertical portion of the first end portion 5031 is from a corner of the first end portion 5031. It extends in a direction away from the upper surface of the first rigid support plate 504a. It should be known that the first end portion 5031 is located at an edge of the first rigid support plate 504a.
  • the engaging portion of the first metal segment crosses the vertical portion of the first end portion 5031. That is, the inner surface of the engaging portion of the first metal segment is in contact with the inner surface of the vertical portion of the first end portion 5031, wherein the inner surface of the engaging portion of the first metal segment faces away from A side wall of the first rigid supporting plate 504a facing the first flexible portion, and an inner surface of the vertical portion of the first end portion 5031 facing the first flexible supporting plate 504a. Part of the sidewall. In other words, the inner surface of the engaging portion of the first metal segment and the inner surface of the vertical portion of the first end portion 5031 are facing each other.
  • the sidewall of the vertical portion of the first end portion 5031 faces the inner surface of the extension portion of the first metal segment, and the sidewall of the engaging portion of the first metal segment faces the The inner surface of the horizontal portion of the first end portion 5031.
  • the inner surface of the horizontal portion of the first end portion 5031 faces the lower surface of the first rigid support plate 504a.
  • a sidewall of the vertical portion of the first end portion 5031 abuts at a corner of the first metal segment.
  • a side wall of the engaging portion of the first metal segment abuts on a corner of the first end portion 5031.
  • an outer surface of the engaging portion of the first metal segment is attached to a side wall of the first rigid support plate 504a facing the first flexible portion. It should be known that the first The outer surface of the engaging portion of the metal segment is opposite to the inner surface of the engaging portion of the first metal segment.
  • the length of the horizontal portion of the first end portion 5031 is greater than or equal to 1 mm .
  • a horizontal portion of the first end portion 5031 may be welded to an upper surface of the first rigid support plate 504a.
  • the horizontal portion of the first end portion 5031 may also be welded to the upper surface of the first rigid support plate 504a. , And then perform further fixing by dispensing.
  • the second end portion 5032 includes a horizontal portion, a vertical portion, and a corner located between the horizontal portion and the vertical portion.
  • the second metal segment includes a hook portion, an extension portion, and a corner located between the hook portion and the extension portion.
  • the second end portion 5032 is U-shaped, and the first metal segment is U-shaped. It should be noted that the horizontal portion of the second end portion 5032 is attached to the upper surface of the second rigid support plate 504c, and the vertical portion of the second end portion 5032 is from a corner of the second end portion 5032. Extending away from the upper surface of the second rigid support plate 504c. It should be known that the second end portion 5032 is located on the edge of the second rigid support plate 504c.
  • the hooking portion of the second metal segment crosses the vertical portion of the second end portion 5032. That is, the inner surface of the engaging portion of the second metal segment is in contact with the inner surface of the vertical portion of the second end portion 5032, wherein the inner surface of the engaging portion of the second metal segment faces away from A side wall of the second rigid supporting plate 504c facing the first flexible portion, and an inner surface of the vertical portion of the second end portion 5032 facing the first flexible portion facing the first flexible portion. Part of the sidewall. In other words, the inner surface of the engaging portion of the second metal segment and the inner surface of the vertical portion of the second end portion face each other.
  • the side wall of the vertical portion of the second end portion 5032 faces the inner surface of the extension portion of the second metal segment, and the side wall of the engaging portion of the second metal segment faces the The inner surface of the horizontal portion of the second end portion 5032.
  • the inner surface of the horizontal portion of the second end portion 5032 faces the lower surface of the second rigid support plate 504c.
  • a sidewall of the vertical portion of the second end portion 5032 abuts at a corner of the second metal segment.
  • a side wall of the engaging portion of the second metal segment abuts on a corner of the second end portion 5032.
  • an outer surface of the engaging portion of the second metal segment is attached to a side wall of the second rigid support plate 504c facing the first flexible portion. It should be known that the outer surface of the engaging portion of the second metal segment is opposite to the inner surface of the engaging portion of the second metal segment.
  • the length of the horizontal portion of the second end portion is greater than or equal to 1 mm.
  • the main body portion is a metal wire 6035.
  • the outer surface of the metal wire has an insulating layer.
  • the insulating layer may be an insulating varnish coated on the outer surface of the metal wire, or may be an insulating sheath wrapped on the outer surface of the metal wire.
  • the edge of the first rigid support plate 604a near the first flexible portion 603b has a step 607.
  • the first rigid support plate 604a The upper surface includes a top surface and a step surface.
  • the height of the stepped surface of the first rigid support plate 604a is smaller than the height of the top surface of the first rigid support plate 604a.
  • the height of the top surface of the first rigid support plate 604a is twice the height of the stepped surface of the first rigid support plate 604a.
  • the height of the stepped surface of the first rigid support plate 604a refers to the distance between the stepped surface of the first rigid support plate 604a and the lower surface of the first rigid support plate 604a.
  • the height of the top surface of the first rigid support plate 604a refers to the distance between the top surface of the first rigid support plate 604a and the lower surface of the first rigid support plate 604a. It should be noted that, in this application, the height of the top surface of the first rigid support plate 604a is also referred to as the thickness of the first rigid support plate 604a, or the area where the top surface of the first rigid support plate 604a is located. thickness of. The height of the stepped surface of the first rigid support plate 604a is also referred to as the thickness of the region where the stepped surface of the first rigid support plate 604a is located.
  • a step 607 located at the edge 604a of the first rigid support plate may be provided by a process of thinning the edge of the plate.
  • the advantage of providing a step 607 on the edge of the first rigid support plate 604a is that on the one hand, the influence of the thickness of the main body portion on the thickness of the charging pad is reduced; on the other hand, the first end portion reduces the effect on the first Extrusion of the width of a flexible portion increases the length of the metal line located on the first flexible portion, so that after the charging pad is bent, the stress on the first end is reduced, thereby making the charging pad The winding reliability is better.
  • the first end portion 6031 has a first horizontal portion, a second horizontal portion, and the first horizontal portion and the second horizontal portion Between the first vertical portion. It should be known that there is a corner between the first horizontal portion and the first vertical portion of the first end portion 6031, and there is also a distance between the first vertical portion and the second horizontal portion of the first end portion 6031. corner.
  • the first end portion 6031 is formed after being bent twice.
  • first horizontal portion of the first end portion 6031 is attached to the top surface of the first rigid support plate 604a and is connected to a wire located in the first rigid portion.
  • the second horizontal portion of the first end portion 6031 is attached to the stepped surface of the first rigid support plate 604a and is connected to the first end of a metal line located in the first flexible portion.
  • a first vertical portion of the first end portion 6031 fits on an upper side wall of the first rigid support plate 604 a facing the first flexible portion. It should be noted that the upper side wall of the first rigid support plate 604a is located between the top surface and the step surface of the first rigid support plate 604a, and faces the first flexible portion.
  • the width of the stepped surface of the first rigid supporting plate 604a (that is, a in FIG. 6A) is greater than or equal to 1.5 mm.
  • the upper side wall of the first rigid support plate 604a is a flat surface. It should be noted that the direction in which the width of the step surface is located is the same as the direction in which a straight line perpendicular to the upper side wall of the first rigid support plate 604a is located.
  • the charging pad further includes a first fixing rod 6033.
  • the first fixing rod 6033 extends across all the second horizontal portions of the first end portion 6031.
  • the first fixing rod 6033 is fixed to a stepped surface of the first rigid support plate 604a along the length direction of the first fixing rod 6033.
  • both ends of the first fixing rod 6033 are respectively fixed at different positions on the stepped surface of the first rigid support plate 604a.
  • the first fixing rod 6033 may be covered in a housing.
  • the edge of the second rigid support plate 604c near the first flexible portion has a step 609.
  • the second rigid support plate 604c The upper surface includes a top surface and a step surface.
  • the height of the stepped surface of the second rigid support plate 604c is smaller than the height of the top surface of the second rigid support plate 604c.
  • the height of the top surface of the second rigid support plate 604c is twice the height of the stepped surface of the second rigid support plate 604c.
  • the height of the stepped surface of the second rigid support plate 604c refers to the distance between the stepped surface of the second rigid support plate 604c and the lower surface of the second rigid support plate 604c.
  • the height of the top surface of the second rigid support plate 604c refers to the distance between the top surface of the second rigid support plate 604c and the lower surface of the second rigid support plate 604c. It should be noted that, in this application, the height of the top surface of the second rigid support plate 604c is also referred to as the thickness of the second rigid support plate 604c, or the area where the top surface of the second rigid support plate 604c is located thickness of. The height of the stepped surface of the second rigid support plate 604c is also referred to as the thickness of the region where the stepped surface of the second rigid support plate 604c is located.
  • the second end portion 6032 has a third horizontal portion, a fourth horizontal portion, and the third horizontal portion and the fourth horizontal portion. Between the second vertical portion. It should be known that there is a corner between the third horizontal portion and the second vertical portion of the second end portion 6032, and there is also a distance between the second vertical portion and the fourth horizontal portion of the second end portion 6032. corner.
  • the second end portion 6032 is formed after being bent twice.
  • the third horizontal portion of the second end portion 6032 is attached to the top surface of the second rigid support plate 604c and is connected to a wire located in the second rigid portion.
  • the fourth horizontal portion of the second end portion 6032 is attached to the stepped surface of the second rigid support plate 604c and is connected to the second end of a metal line located in the first flexible portion.
  • the first end of the metal line 6035 is connected to the second horizontal portion of the first end portion 6031 attached to the step surface of the first rigid support plate 604a.
  • the vertical portion of the second end portion 6032 is attached to the upper side wall of the second rigid support plate 604 c facing the first flexible portion. It should be noted that the upper side wall of the second rigid support plate 604c is located between the top surface and the step surface of the second rigid support plate 604c, and faces the first flexible portion.
  • the width of the stepped surface of the second rigid support plate 604c is greater than or equal to 1.5 mm.
  • the upper side wall of the second rigid support plate 604c is a flat surface. It should be noted that the direction in which the width of the stepped surface is located is the same as the direction in which a straight line perpendicular to the upper side wall of the second rigid support plate 604c is located.
  • the second rigid support plate 604c and the first rigid support plate 604a may be symmetrical. Therefore, the foregoing limitation on the first rigid support plate 604a is also applicable to the second rigid support plate 604c. In order to save space, it will not be repeated here.
  • the charging pad further includes a second fixing rod 6034.
  • the second fixing rod 6034 extends across all the fourth horizontal portions of the second end portion 6032.
  • the second fixing rod 6034 is fixed on the stepped surface of the second rigid support plate 604c.
  • the second fixing rod 6034 is fixed on the step surface of the second rigid support plate 604c.
  • both ends of the second fixing rod 6034 may be respectively fixed at different positions on the stepped surface of the second rigid support plate 604c.
  • the second fixing rod 6034 can be covered in the housing.
  • first fixing rod or the second fixing rod is made of a non-conductive material, such as plastic.
  • the first fixing rod (or the second fixing rod) is beneficial to enhance the flatness of the charging pad, and strengthen the connection between the first end portion (or the second end portion) and the metal circuit located at the first flexible portion. The reliability also facilitates positioning during welding.
  • first, second, third, and fourth ordinal numbers appearing before the name in this application are only used to distinguish (for example, the first end and the second end, in order to distinguish them from Different ends), they do not have any defined meaning.
  • the second end portion includes a third horizontal portion and a fourth horizontal portion. This is only used to limit the second end portion to include two horizontal portions, rather than to say that the second end portion also includes a first horizontal portion and a first horizontal portion. Two horizontal sections.
  • the third and fourth horizontal sections are named here because the first and second horizontal sections have been used elsewhere in this application. To avoid confusion, the two horizontal portions located in the second end portion are named the third horizontal portion and the fourth horizontal portion, respectively.
  • the charging pad also has a second rigid support plate and the first planar coil also has a second rigid portion
  • the area where the second rigid portion is located covers the The second plane of the roller.
  • the second plane and the first round are adjacent, and the second plane and the first plane are located on both sides of the first round.
  • the second plane is also one of a plurality of planes included in the side wall of the roller shaft.
  • the charging pad 700 further includes at least one second planar coil and a third rigid support plate 704.
  • the second planar coil includes an adjacent third rigid portion and a second flexible portion.
  • the third rigid portion includes a plurality of wires, and the second flexible portion includes a plurality of metal lines. It should be noted that the metal circuit located in the second flexible portion is bendable. Further, the second flexible portion and the first flexible portion are respectively located on two sides of the third rigid support plate 704. The third rigid portion is located on an upper surface of the third rigid support plate 704.
  • the third rigid supporting plate 704 is a printed circuit board, and the wires located in the third rigid portion may be printed or etched on the upper surface of the third rigid supporting plate 704.
  • the multilayer printed circuit board may be a multilayer board. It is worth noting that, in this embodiment, the third rigid support plate 704 and the second rigid support plate 703 are stacked. Optionally, an edge of the third rigid support plate 704 and an edge of the second rigid support plate 703 are aligned.
  • the third rigid support plate 704 and the second rigid support plate 703 may be two daughter boards stacked in the same printed circuit board.
  • the area where the second flexible portion is located covers the second rounded corner of the roller.
  • the second rounded corner and the aforementioned second plane are adjacent, and the second rounded corner and the first rounded corner are respectively located on two sides of the second plane.
  • the second round is located on a side wall of the roller shaft, and is one of a plurality of rounds included in the roller shaft.
  • the area where the third rigid support plate is located and the area where the second rigid support plate is located are the same area of the charging pad.
  • the charging pad 700 further includes a fourth rigid support plate 706.
  • the second planar coil further includes a fourth rigid portion.
  • the second flexible portion is located between the third rigid portion and the fourth rigid portion, and is adjacent to the third rigid portion and the fourth rigid portion, respectively.
  • the fourth rigid portion is located on an upper surface of the fourth rigid supporting plate 706.
  • the fourth rigid support plate 706 is a printed circuit board, and the wires located in the fourth rigid portion may be printed on the upper surface of the fourth rigid support plate 706.
  • the lower surface of the third rigid support plate 704 faces the upper surface of the second rigid support plate 703, and the upper surface of the third rigid support plate 704 faces away from An upper surface of the second rigid support plate 703. That is, the third rigid support plate 704 is placed above the second rigid support plate 703.
  • the upper surface of the second rigid support plate 703 and the upper surface of the first rigid support plate 701 are located on the same plane.
  • the upper surface of the fourth rigid support plate 706 and the upper surface of the third rigid support plate 704 are located on the same plane.
  • the upper surface of the fourth rigid support plate 706 and the upper surface of the first rigid support plate 701 are located on the same plane.
  • the lower surface of the second rigid support plate 703 faces the upper surface of the third rigid support plate 704, and the The upper surface faces away from the upper surface of the third rigid support plate 704. That is, the second rigid support plate 703 is placed above the third rigid support plate 704.
  • the upper surface of the third rigid support plate 704 and the upper surface of the first rigid support plate 701 are located on the same plane.
  • the upper surface of the fourth rigid support plate 706 and the upper surface of the third rigid support plate 704 are located on the same plane.
  • the upper surface of the fourth rigid support plate 706 and the upper surface of the second rigid support plate 703 are located on the same plane.
  • the second rigid support plate 703 is located one level above the third rigid support plate 704.
  • the second rigid support plate 703 is disposed above the third rigid support plate 704, so that the distance between the first rigid portion of the first planar coil and the receiving end is longer than the first The distance between the second rigid part of the planar coil and the receiving end, this design can solve the problem of frequency bifurcation caused by over-coupling to a certain extent, and then the charging pad can be made thinner.
  • the upper surface of the first rigid support plate 701 and the upper surface of the second rigid support plate 703 are not located on the same plane, and the layer where the second rigid support plate 703 is located is located where the first rigid support plate 701 is located. 5B, FIG. 6A, and FIG. 6B, and it is easy to understand that the metal circuit in the flexible region should be deformed.
  • the first end portion should be connected (or welded) to the top of the first rigid support plate, and the second end portion should be connected (or welded) to the bottom of the second rigid support plate.
  • the charging pad further includes a fourth rigid support plate and the second planar coil further includes a fourth rigid portion
  • the charging pad is wound on a roller, the area where the fourth rigid support plate is located covers the roller.
  • Third plane It should be known that the third plane and the second round are adjacent, and the third plane and the second plane are located on both sides of the second round, respectively.
  • the third plane is also one of a plurality of planes included in a side wall of the roller shaft.
  • the charging pad includes a first planar coil 805, a first printed circuit board 801, and a first flexible circuit board 802.
  • the first planar coil 805 includes an adjacent first portion and a second portion. Further, the first portion is etched on the surface or inside of the first printed circuit board 801, and the second portion is etched on the surface or inside of the first flexible circuit board 802.
  • the thickness of the first printed circuit board 801 and the first flexible circuit board 802 are the same.
  • an area where the first printed circuit board is located covers one plane of the roller, and an area where the first flexible circuit board is located covers one of the rollers. Rounded. It should be known that the one plane and the one round are adjacent.
  • the first planar coil 805 further includes a third portion adjacent to the second portion, and the second portion is located between the first portion and the third portion. It should be noted that the third portion is etched on the surface or inside of the second printed circuit board 803.
  • an area where the first printed circuit board is located covers one plane of the roller, and an area where the first flexible circuit board is located covers one of the rollers.
  • the corners are rounded, and the area where the second printed circuit board is located covers another plane of the roller. It should be known that the one plane and the other plane are adjacent to the one round and are located on both sides of the one round, respectively.
  • the charging pad includes a first planar coil 905, a first printed circuit board 901, a first flexible circuit board 902, and a second printed circuit board 903.
  • the first planar coil 905 is located on the surface or inside of the first flexible circuit board 902.
  • the first planar coil 905 is etched on the surface or inside of the first flexible circuit board 902.
  • a first portion of the first flexible circuit board 902 is laminated in the first printed circuit board 901, and a second portion is laminated in the second printed circuit board 903.
  • the first flexible circuit board 902 further includes other parts besides the first part and the second part, and the other parts are located between the first part and the second part.
  • the thicknesses of the first printed circuit board 901 and the second printed circuit board 903 are the same.
  • the area where the first printed circuit board is located covers a plane of the roller, and the other areas are covered with a rounded corner of the roller. And the area where the second printed circuit board is located covers another plane of the roller shaft. It should be known that the one plane and the other plane are adjacent to the one round and are located on both sides of the one round, respectively.
  • the charging pad 700 may further include a magnetic conductive sheet 708.
  • the lower surface of the rigid support plate (such as the lower surface of the first rigid support plate 701) at the lowermost layer is in contact with the upper surface of the magnetically conductive sheet 708.
  • the second rigid support plate 703 and the first rigid support plate 701 may All are rigid support plates located at the bottom. In this case, both the lower surface of the second rigid support plate 703 and the lower surface of the first rigid support plate 701 are in contact with the upper surface of the magnetically conductive sheet 708.
  • the first rigid support plate The support plate 701, the third rigid support plate 704, and the fourth rigid support plate 706 may all be the lowest rigid support plate.
  • the lower surface of the first rigid support plate 701, the lower surface of the third rigid support plate 704, and the lower surface of the fourth rigid support plate 706 are all in contact with the upper surface of the magnetically conductive sheet 708.
  • the charging pad may further include a plurality of magnetically conductive sheets.
  • the number of the plurality of magnetically conductive pieces is the same as the number of the rigid support plates located at the lowest level in the charging pad, and the plurality of magnetically conductive plates and the plurality of rigid support plates at the lowest level are one-to-one.
  • the second rigid support plate and the first rigid support plate may both be the rigidity at the lowest level.
  • Support plate In this case, the lower surface of the second rigid support plate is in contact with the upper surface of one magnetically conductive sheet, and the lower surface of the first rigid support plate is in contact with the upper surface of the other magnetically conductive sheet.
  • the edge of each magnetically conductive sheet is aligned with the edge of the corresponding rigid support plate.
  • the magnetically conductive sheet can be made of a magnetic material.
  • the magnetic material may be one or more of ferrite, amorphous, nanocrystalline or metal powder core.
  • the charging pad includes a plurality of first planar coils (1103a and 1103b) isolated from each other, and each first planar coil includes a first rigid portion, a second A rigid portion and a first flexible portion between the first rigid portion and the second rigid portion.
  • each first rigid portion is supported by a first rigid support plate
  • each second rigid portion is supported by a second rigid support plate.
  • the wireless charger when the charging pad provided in this embodiment is applied to a wireless charger, the wireless charger includes multiple control circuits (such as control circuit A and control circuit B).
  • each control circuit is configured to control one or more of the first planar coils. It should be known that, by turning on and off a control circuit, the corresponding first plane coil can be controlled to be charged or stopped from being charged.
  • a plurality of the first planar coils and a plurality of the control circuits are one-to-one. That is, each control circuit is used to control one of the first planar coils.
  • the charging pad when the charging pad includes a plurality of first planar coils isolated from each other, the charging pad can charge multiple terminal devices at the same time.
  • the charging mat may further include a plurality of second planar coils (such as Planar coils 1203c and 1203d). It should be known that the number of the second planar coils is less than or equal to the number of the first planar coils.
  • the second planar coil includes a third rigid portion, a fourth rigid portion, and a second flexible portion located between the third rigid portion and the fourth rigid portion. The third rigid portion is supported by a third rigid support plate, and the fourth rigid portion is supported by the fourth rigid support plate.
  • the third rigid support plate and the second rigid support plate are stacked.
  • the third rigid support plate is edge aligned with the second rigid support plate.
  • the projection of the third rigid portion on the upper surface of the second rigid support plate and the second rigid portion at least partially overlap.
  • the wireless charger includes multiple control circuits (such as control circuit A and control circuit B).
  • each control circuit may control at least one of the first planar coil or at least one of the second planar coil, and may also control at least one of the first planar coil and at least one of the second planar coil.
  • the control circuit 1 controls both the first planar coil 1203a and the second planar coil 1203c; the control circuit 2 controls both the first planar coil 1203b and the second planar coil 1203d.
  • the wireless charger can charge only one device to be charged or two or more devices.
  • the device to be charged is charged.
  • the application also provides a charging method for a wireless charger. It is worth noting that the wireless charger is the wireless charger described in the foregoing embodiment. Further, as shown in FIG. 13, the wireless charger 1300 further includes a display component 1037. The display part 1037 is used to display the power amount information of the charged device.
  • the charging method includes the following steps.
  • the wireless charger identifies the identity information of the device to be charged.
  • the method further includes: the wireless charger detects whether there is a device to be charged on the charging pad.
  • the wireless charger when there is a device to be charged on the charging pad of the wireless charger, the wireless charger also establishes a communication connection with the device to be charged, obtains configuration information of the device to be charged through the connection, and determines the configuration information based on the configuration information. Identity information of the device to be charged.
  • the identity information of the device to be charged is used to uniquely identify the device to be charged.
  • the wireless charger and the device to be charged may adopt a short-distance communication method, such as in-band communication, Bluetooth communication, or wireless network (WIFI).
  • a short-distance communication method such as in-band communication, Bluetooth communication, or wireless network (WIFI).
  • the wireless charger determines the type of the device to be charged according to the identity information of the device to be charged, and charges the device to be charged according to the type of the device to be charged.
  • multiple devices to be charged that belong to the same category can receive the same charging voltage, or charging current, or charging power.
  • the category of the device to be charged may include a mobile phone, a watch, or a headset.
  • the method may further include: receiving, by the wireless charger, the power information of the device to be charged in real time and displaying it.
  • the method may further include: displaying the category of the device to be charged.
  • the power information of the device to be charged is sent by the device to be charged to the wireless charger.
  • the wireless charger also includes different types of lights (such as breathing lights).
  • the number of each type of lamp is one.
  • Each type of lamp corresponds to one type of device to be charged, and each type of lamp to be charged corresponds to one type of lamp.
  • Step S2 is specifically: the wireless charger determines the type of the device to be charged according to the identity of the device to be charged, lights up a corresponding type of lamp according to the type of the device to be charged, and charges the device to be charged.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本申请提供了一种用于无线充电器内的充电垫,该充电垫是可卷曲的。具体的,该充电垫包括刚性区和柔性区,且该刚性区和该柔性区的结构是不相同的。该刚性区内具有刚性支撑板,该柔性区内的金属线路采用金属铰链的结构或者是采用可折弯的金属导线。此处,本申请还提供了应用该充电垫的无线充电器。

Description

一种无线充电器和充电垫 技术领域
本申请涉及无线充电技术领域,尤其涉及一种在无线充电器和对应的充电垫。
背景技术
使用接触式电能传输技术为便携式电子设备进行充电时,常见的,不同类型的便携式电子设备会配置不同类型的电源适配器和电源线这就意味着多种便携式电子设备的持有者外出时可能需要携带多种的电源适配器和数据线,这种情形导致该便携式电子设备的便携性较差。
近几年,采用无线充电技术对便携式电子设备进行充电开始普及。相比于接触式电能传输技术来说,在无线充电技术中,使用同一个无线充电器可以实现对不同类型的便携式电子设备进行充电。其中,无线充电器的充电垫中内置有线圈,该线圈在通电后会产生磁场,位于该磁场内具有无线充电功能的便携式电子设备将会被充电。但是,这种内置有线圈的充电垫的面积比较大,携带起来很不方便。因此,提供一种应用于无线充电且体积小的无线充电器成为一个需要解决的难题。
发明内容
本申请提供一种无线充电器,包括辊轴和充电垫,该充电垫能够卷绕在该辊轴上,且在卷绕后,该无线充电器具有比较小的体积,因此便于携带。相应的,本申请还提供了一种应用于该无线充电器的充电垫。
第一方面,本申请提供一种无线充电器。它包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上。
所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角。
所述充电垫包括第一平面线圈和第一刚性支撑板。所述第一平面线圈包括相邻的第一刚性部分和第一柔性部分,所述第一刚性部分位于所述第一刚性支撑板的上表面。其中,位于所述第一柔性部分内的金属线路是可折弯的。
在所述充电垫卷绕在所述辊轴上时,所述第一刚性支撑板所在的区域覆盖所述辊轴的第一平面,所述第一柔性部分所在的区域覆盖所述辊轴的第一倒圆角。
需要说明的是,所述第一平面为所述辊轴的侧壁包括的多个平面内的一个平面。
由于所述辊轴的侧壁包括多个平面,且相邻两个平面之间具有一个倒圆角,因此,该辊轴的侧壁包括多个倒圆角。前述的第一倒圆角为该辊轴的侧壁包括的多个倒圆角中的一个。
值得注意的是,该第一倒圆角和该第一平面是相邻的。
在充电垫卷绕在该辊轴上时,该无线充电器会具有比较小的体积,因此相对于现有技术中的无线充电器来说,本实施例提供的无线充电器更加便于携带。
结合第一方面,在第一种可能的实现方式中,该充电垫还包括第二刚性支撑板。相应的,所述第一平面线圈还包括与所述第一柔性部分相邻的第二刚性部分,所述第一柔性部分位于所述第一刚性部分和所述第二刚性部分之间,所述第二刚性部分位于所述第二刚性 支撑板的上表面。在所述充电垫卷绕在所述辊轴上时,所述第二刚性支撑板所在的区域覆盖所述辊轴的第二平面。
应当知道的是,该第二平面为所述辊轴的侧壁包括的多个平面内的一个平面。且所述第二平面与所述第一倒圆角相邻,并且该第一倒圆角位于该第一平面和该第二平面之间。
由于刚性支撑板是不可弯折的,因此位于刚性支撑板表面的刚性部分的导线可以比位于柔性部分的金属线路粗,也即位于刚性部分的导线的电阻小于位于柔性部分的金属线路的电阻。在本实施例中,该第一平面线圈跨越了第一刚性支撑板和第二刚性支撑板,这将使得本实施例提供的无线充电器具有较大的电流,进而能够提供更高的充电效率。
结合第一方面的第一种实现方式,在第二种可能的实现方式中,所述充电垫还包括第二平面线圈和第三刚性支撑板。所述第二平面线圈包括相邻的第三刚性部分和第二柔性部分,所述第三刚性部分位于所述第三刚性支撑板的上表面,位于所述第二柔性部分内的金属线路是可折弯的。
所述第三刚性支撑板和所述第二刚性支撑板层叠放置,则所述充电垫内所述第三刚性支撑板所在的区域和所述第二刚性支撑板所在的区域是同一个区域。
所述第二柔性部分和所述第一柔性部分分别位于所述第三刚性部分的两侧,则在所述充电垫卷绕在所述辊轴上时,所述第二柔性部分所在的区域覆盖所述辊轴的第二倒圆角。
在本实施例中,该无线充电器的充电垫还包括第二平面线圈,且该第二平面线圈与该第一平面线圈有部分交叠。应当知道的是,该第一平面线圈在该交叠部分产生的磁场和该第二平面线圈在该交叠部分产生的磁场将会叠加,因此该交叠部分对应的区域将会具有较大的磁场强度,换句话说,该交叠部分对应的区域将会具有较高的充电效率。
结合第一方面的第二种实现方式,在第三种可能的实现方式中,所述充电垫还包括第四刚性支撑板。相应的,所述第二平面线圈还包括与所述第二柔性部分相邻的第四刚性部分,所述第二柔性部分位于所述第三刚性部分和所述第四刚性部分之间,所述第四刚性部分位于所述第四刚性支撑板的上表面。在所述充电垫卷绕在所述辊轴上时,所述第四刚性支撑板所在的区域覆盖所述辊轴的第三平面。
在本实施例提供的无线充电器中,由于同时具有第一平面线圈和第二平面线圈,且该第二平面线圈内除了第三刚性部分之外的其他部分均位于该第一平面线圈的一侧,因此该无线充电器具有更大的充电区域。进一步地,该第四刚性支撑板的存在,可以减小该第二平面线圈的电阻,进而能够增大该第二平面线圈内通过的电流,从而使得该第二平面线圈具有较高的充电效率。
结合第一方面的第二种或第三种实现方式,在第四种可能的实现方式中,所述第三刚性支撑板的下表面朝向所述第二刚性支撑板的上表面,且所述第三刚性支撑板的上表面背离所述第二刚性支撑板的上表面,所述第二刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。在本实施例中,第一刚性支撑板和第二刚性支撑板位于同一层。
结合第一方面的第二种或第三种实现方式,在第五种可能的实现方式中,所述第二刚性支撑板的下表面朝向所述第三刚性支撑板的上表面,且所述第二刚性支撑板的上表面背离所述第三刚性支撑板的上表面,所述第三刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。在本实施例中,第一刚性支撑板和第三刚性支撑板位于同一层。
结合第一方面的第四种或第五种实现方式,在第六种可能的实现方式中,所述第四刚性支撑板的上表面和所述第三刚性支撑板的上表面位于同一平面。或者,所述第四刚性支撑板的上表面和所述第二刚性支撑板的上表面位于同一平面。
结合第一方面或第一方面的第一种至第六种实现方式中任一种实现方式,在第七种可能的实现方式下,所述充电垫的其他侧边的边缘设置有多个磁条。在所述充电垫在所述辊轴上卷绕一层或不满一层时,所述磁条吸附在所述辊轴上。在所述充电垫在所述辊轴上卷绕多于一层时,第一层充电垫上的磁条吸附在所述辊轴上,第N层充电垫上的磁条吸附在第N-1层充电垫上,其中,N为大于或等于2的整数。
该磁条的设计用于避免在该充电垫被卷曲后,由于该无线充电器的持有者不小心的碰触而伸展的情况。
第二方面,本申请提供一种充电垫。该充电垫包括第一平面线圈和第一刚性支撑板。所述第一平面线圈包括相邻的第一刚性部分和第一柔性部分。所述第一刚性部分位于所述第一刚性支撑板的上表面。位于所述第一柔性部分的金属线路是可折弯的。
在本申请提供的充电垫中,由于该第一柔性部分是可折弯的,因此该充电垫还是可折叠的。折叠后的充电垫由于具有比较小的体积,所以具有良好的便携性。
结合第二方面,在第一种可能的实现方式中,该充电垫还包括第二刚性支撑板。相应的,所述第一平面线圈还包括与所述第一柔性部分相邻的第二刚性部分。需要说明的是,所述第一柔性部分位于所述第一刚性部分和所述第二刚性部分之间,且所述第二刚性部分位于所述第二刚性支撑板的上表面。在本实施例中,该第一平面线圈跨越两个刚性支撑板,其优点在于便于制作。
结合第二方面的第一种实现方式,在第二种可能的实现方式中,位于所述第一柔性部分的每一金属线路包括靠近所述第一刚性部分的第一端部、靠近所述第二刚性部分的第二端部以及位于所述第一端部和所述第二端部之间的主体部。其中,所述第一端部与所述第一刚性部分的一根导线连接,所述第二端部与所述第二刚性部分的一根导线连接。
位于所述第一刚性部分内且与所述第一端部连接的导线和所述第一端部的接头部的厚度与所述第一刚性支撑板的厚度之和大于或等于所述主体部的厚度。进一步地,位于所述第二刚性部分内且与该第二端部连接的导线和所述第二端部的接头部的厚度与所述第二刚性支撑板的厚度之和也大于或等于所述主体部的厚度。
在本实施例中,位于该主体部两端中任一端的接头部和对应的刚性支撑板的厚度之和大于该主体部的厚度,所以该充电垫的厚度不是取决于该主体部的厚度,因此该主体部的厚度不会影响该充电垫的整体厚度。
可选的,位于该第一刚性部分内且与该第一端部相连接的导线的宽度与该第一端部的宽度相同。
可选的,位于该第二刚性部分内且与该第二端部相连接的导线的宽度与该第二端部的宽度相同。
可选的,位于该第一刚性部分内的导线的宽度与位于该第二刚性部分内的导线的宽度相同。
结合第二方面的第二种实现方式,在第三种可能的实现方式中,该主体部包括串接的 多个金属段。其中,相邻两个金属段相铰接。所述多个金属段包括第一金属段、第二金属段和位于所述第一金属段与所述第二金属段之间的至少一个金属段。其中,所述第一金属段的一端与所述第一端部相勾合,所述第二金属段的一端与所述第二端部相勾合。
在本实施例中,位于所述第一柔性部分内的主体部由至少三个金属段铰接而成。该设计使得该主体部具有可折弯性,进而使得该充电垫具有可折弯性。
结合第二方面的第三种实现方式,在第四种可能的实现方式中,所述第一端部包括水平部、竖直部以及位于所述水平部和所述竖直部之间的拐角。所述第一金属段包括勾合部、延伸部以及位于所述勾合部与所述延伸部之间的拐角。
所述第一端部的水平部贴合在所述第一刚性支撑板的上表面并与所述第一刚性部分内的一根导线连接,所述第一端部的竖直部自所述第一端部的拐角起向远离所述第一刚性支撑板的上表面的方向延伸。
所述第一金属段的勾合部与所述第一端部的竖直部交叉勾合,所述第一金属段的延伸部自所述第一金属段的拐角起向远离所述第一刚性支撑板朝向所述第一柔性部分的侧壁的方向延伸,且所述第一金属段的延伸部与相邻的金属段相铰接。
该第一金属段和该第一端部通过交叉勾合实现连接,相对于焊接来说,本实施例提供的连接方式在实现牢固的连接方式的同时,也有利于降低工艺的复杂度。
结合第二方面的第四种实现方式,在第五种可能的实现方式中,所述第一端部的竖直部的侧壁朝向所述第一金属段的延伸部的内表面,且所述第一金属段的勾合部的侧壁朝向所述第一端部的水平面的内表面。
结合第二方面的第三至第五种实现方式,在第六种可能的实现方式中,所述第二端部包括水平部、竖直部以及位于所述水平部与所述竖直部之间的拐角。所述第二金属段包括勾合部、延伸部以及位于所述勾合部和所述延伸部之间的拐角。
所述第二端部的水平部贴合在所述第二刚性支撑板的上表面并与所述第二刚性部分内的一根导线连接,所述第二端部的竖直部自所述第二端部的拐角起向远离所述第二刚性支撑板的上表面延伸。
所述第二金属段的勾合部与所述第二端部的竖直部交叉勾合,所述第二金属段的延伸部自所述第二金属段的拐角起向远离所述第二刚性支撑板朝向所述第一柔性部分的侧壁的方向延伸,且所述第二金属段的延伸部与相邻的金属段相铰接。
类似地,在本实施例中,该第二金属段和该第二端部通过交叉勾合实现连接,相对于焊接来说,本实施例提供的连接方式在实现牢固的连接方式的同时,也有利于降低工艺的复杂度。
结合第二方面的第六种实现方式,在第七种可能的实现方式中,所述第二端部的竖直部的侧壁朝向所述第二金属段的延伸部的内表面,且所述第二金属段的勾合部的侧壁朝向所述第二端部的水平部的内表面。
结合第二方面的第二种实现方式,在第八种可能的实现方式中,该主体部为一根金属导线。应当知道的是,该金属导线是柔性的。
可选的,该金属导线的外表具有绝缘层。具体的,该金属导线的外表包裹有绝缘皮或者涂覆有绝缘漆。
结合第二方面的第八种实现方式,在第九种可能的实现方式中,所述第一刚性支撑板靠近所述第一柔性部分的边缘具有一个台阶。相应的,所述第一刚性支撑板的上表面包括顶面和台阶面,其中,所述第一刚性支撑板的顶面凸出于所述第一刚性支撑板的台阶面。
所述第一端部具有第一水平部、第一竖直部和第二水平部,其中,所述第一端部的第一竖直部位于所述第一端部的第一水平部和第二水平部之间。
所述第一端部的第一水平部贴合在所述第一刚性支撑板的顶面并与位于所述第一刚性部分的一根导线连接。所述第一端部的第二水平部贴合在所述第一刚性支撑板的台阶面并与位于所述第一柔性部分内的一根所述金属线路的第一端连接。
所述第一端部的第一竖直部贴合在所述第一刚性支撑板的上侧壁,所述第一刚性支撑板的上侧壁位于所述第一刚性支撑板的顶面和台阶面之间,且朝向所述第一柔性部分。
该台阶结构的设计有利于降低该主体部的高度,进而降低该充电垫的厚度。
可选的,该第一刚性支撑板的顶面所在区域的厚度为该第一刚性支撑板的台阶面所在区域的厚度的两倍。
结合第二方面的第九种实现方式,在第十种可能的实现方式中,该充电垫还包括第一固定杆。该第一固定杆横跨多个所述第一端部的第二水平部,且沿所述第一固定杆的长度方向,所述第一固定杆被固定在所述第一刚性支撑板的台阶面。该第一固定杆用于固定该第一端部。
结合第二方面的第九种或第十种实现方式,在第十一种可能的实现方式中,所述第二刚性支撑板靠近所述第一柔性部分的边缘具有一个台阶,所述第二刚性支撑板的上表面包括顶面和台阶面,所述第二刚性支撑板的顶面凸出于所述第二刚性支撑板的台阶面。
所述第二端部具有第三水平部、第二竖直部和第四水平部,所述第二端部的第二竖直部位于所述第二端部的第三水平部和第四水平部之间。
所述第二端部的第三水平部贴合在所述第二刚性支撑板的顶面并与位于所述第二刚性部分的一根导线连接。所述第二端部的第四水平部贴合在所述第二刚性支撑板的台阶面并与位于所述第一柔性部分内的一个所述金属线路的第二端连接。其中,所述金属线路包括第一端和与所述第一端相对的第二端。所述第二端部的第二竖直部贴合在所述第二刚性支撑板的上侧壁。所述第二刚性支撑板的上侧壁位于所述第二刚性支撑板的顶面和台阶面之间,且朝向所述第一柔性部分。
类似地,该台阶结构的设计有利于降低该主体部的高度,进而降低该充电垫的厚度。
可选的,所述第二刚性支撑板的顶面所在区域的厚度为所述第二刚性支撑板的台阶面所在区域的厚度的两倍。
结合第二方面的第十一种实现方式,在第十二种可能的实现方式中,该充电垫还包括第二固定杆。所述第二固定杆横跨多个所述第二端部的第四水平部。沿所述第二固定杆的长度方向,所述第二固定杆被固定在所述第二刚性支撑板的台阶面。该第二固定杆用于固定该第二端部。
结合第二方面的第一种至第十二种实现方式,在第十三种可能的实现方式中,该充电垫还包括第二平面线圈和第三刚性支撑板。所述第二平面线圈包括相邻的第三刚性部分和第二柔性部分,其中,所述第三刚性部分位于所述第三刚性支撑板的上表面。位于所述第 二柔性部分内的金属线路是可折弯的。所述第三刚性支撑板和所述第二刚性支撑板层叠放置,且所述第二柔性部分和所述第一柔性部分分别位于所述第四刚性部分的两侧。
在本实施例中,该充电垫包括第一平面线圈和第二平面线圈,且该第一平面线圈和该第二平面线圈存在交叠部分。在待充电的电子设备位于该交叠部分时,则该第一平面线圈和该第二平面线圈可以同时对该电子设备进行充电,从而能够提高充电效率。进一步地,由于该第一平面线圈和该第二平面线圈共同产生的磁场范围大于该第一平面线圈单独产生的磁场范围,所以,该电子设备放置在该充电垫上的位置更加灵活。
结合第二方面的第十三种实现方式,在第十四种可能的实现方式中,所述第三刚性支撑板的下表面朝向所述第二刚性支撑板的上表面,且所述第三刚性支撑板的上表面背离所述第二刚性支撑板的上表面。其中,所述第二刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。
在本实施例中,该第三刚性支撑板层叠该第二刚性支撑板的上方,也即该第一平面线圈的第一刚性部分和第二刚性部分位于同一平面内。该第三刚性支撑板和该第二刚性支撑板层叠放置,该设计能减小充电垫的体积。
结合第二方面的第十三种实现方式,在第十五种可能的实现方式中,所述第二刚性支撑板的下表面朝向所述第三刚性支撑板的上表面,且所述第二刚性支撑板的上表面背离所述第三刚性支撑板的上表面。所述第三刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。
在本实施例中,该第二刚性支撑板层叠设置在该第三刚性支撑板的上方,该设计能减小充电垫的体积。
结合第二方面的第十四种或第十五种实现方式,在第十六种可能的实现方式中,该充电垫还包括第四刚性支撑板,相应的,所述第二平面线圈还包括与所述第二柔性部分相邻的第四刚性部分,所述第二柔性部分位于所述第三刚性部分和所述第四刚性部分之间。所述第四刚性部分位于所述第四刚性支撑板的上表面,所述第四刚性支撑板的上表面和所述第三刚性支撑板的上表面位于同一平面。
结合第二方面的第十六种实现方式,在第十七种可能的实现方式中,该充电垫还包括第四刚性支撑板,相应的,所述第二平面线圈还包括与所述第二柔性部分相邻的第四刚性部分,所述第二柔性部分位于所述第三刚性部分和所述第四刚性部分之间。所述第四刚性部分位于所述第四刚性支撑板的上表面,所述第四刚性支撑板的上表面和所述第二刚性支撑板的上表面位于同一平面。
第三方面,本申请提供了另一种无线充电器。它包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上。所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角。
所述充电垫包括第一平面线圈、第一印刷电路板和第一柔性电路板。所述第一平面线圈包括相邻的第一部分和第二部分,所述第一部分位于所述第一印刷电路板的表面或内部,所述第二部分位于所述第一柔性电路板的表面或内部。
在所述充电垫卷绕在所述辊轴上时,所述第一印刷电路板所在的区域覆盖所述辊轴的第一平面,所述第一柔性电路板所在的区域覆盖所述辊轴的第一倒圆角。
已知的是,充电垫内印刷电路板所在的区域是刚性区域,柔性电路板所在的区域是柔性区域,其中,柔性区域是可折弯的。因此,在本实施例提供的无线充电器中,充电垫能够卷绕在辊轴上,具有比较小的体积,且便于携带。
结合第三方面,在第一种可能的实现方式下,所述充电垫还包括第二印刷电路板。相应的,所述第一平面线圈还包括与所述第二部分相邻的第三部分,且所述第二部分位于所述第一部分和所述第三部分之间,其中,所述第三部分位于所述第二印刷电路板的表面或内部。在所述充电垫卷绕在所述辊轴上时,所述第二印刷电路板所在的区域覆盖所述辊轴的第二平面。
容易知道的是,在本实施例中,第一平面线圈跨越了两个印刷电路板,由于位于印刷电路板内的金属线路可以比较粗,具有比较小的电阻。所以本实施例中,该第一平面线圈可以具有比较小的电阻,进而能够通过较大的电流,具有较高的充电效率。
结合第三方面或第三方面的第一种实现方式,在第二种可能的实现方式下,所述充电垫的其他侧边的边缘设置有多个磁条。在所述充电垫在所述辊轴上卷绕一层或不满一层时,所述磁条吸附在所述辊轴上。在所述充电垫在所述辊轴上卷绕多于一层时,第一层充电垫上的磁条吸附在所述辊轴上,第N层充电垫上的磁条吸附在第N-1层充电垫上,其中,N为大于或等于2的整数。
该磁条的设计用于避免在该充电垫被卷曲后,由于该无线充电器的持有者不小心的碰触而伸展的情况。
第四方面,本申请提供了另一种充电垫。该充电垫包括第一平面线圈、第一印刷电路板和第一柔性电路板。所述第一平面线圈包括相邻的第一部分和第二部分,所述第一部分位于所述第一印刷电路板的表面或内部,所述第二部分位于所述第一柔性电路板的表面或内部。本实施例提供的充电垫包括第一柔性电路板,所以该充电垫是可折弯的。
结合第四方面,在第一种可能的实现方式中,该充电垫还包括第二印刷电路板,相应的,所述第一平面线圈还包括与所述第二部分相邻的第三部分,且所述第二部分位于所述第一部分和所述第三部分之间。其中,所述第三部分位于所述第二印刷电路板的表面或内部。在本实施例中,该第一平面线圈跨越两个印刷电路板,其优点在于便于制作且具有较高的充电效率。
第五方面,本申请提供了再一种无线充电器。它包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上,所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角;
所述充电垫包括第一平面线圈、第一印刷电路板、第二印刷电路板和第一柔性电路板,所述第一平面线圈位于所述第一柔性电路板的表面或内部,所述第一柔性电路板的第一部分被层压在所述第一印刷电路板内,第二部分被层压在所述第二印刷电路板内,所述第一柔性电路板内除所述第一部分和所述第二部分之外的其他部分位于所述第一部分和所述第二部分之间;
在所述充电垫卷绕在所述辊轴上时,所述第一印刷电路板所在的区域覆盖所述辊轴的第一平面,所述其他部分所在的区域覆盖所述辊轴的第一倒圆角,所述第二印刷电路板所在的区域覆盖所述辊轴的第二平面。
在本实施例中,由于该其他部分所在的区域是柔性可卷曲的,因此该充电垫能够卷绕在该辊轴上,使得该无线充电器会具有比较小的体积。
结合第五方面,在第一种可能的实现方式下,所述充电垫的其他侧边的边缘设置有多个磁条。在所述充电垫在所述辊轴上卷绕一层或不满一层时,所述磁条吸附在所述辊轴上。在所述充电垫在所述辊轴上卷绕多于一层时,第一层充电垫上的磁条吸附在所述辊轴上,第N层充电垫上的磁条吸附在第N-1层充电垫上,其中,N为大于或等于2的整数。
该磁条的设计用于避免在该充电垫被卷曲后,由于该无线充电器的持有者不小心的碰触而伸展的情况。
第六方面,本申请提供了再一种充电垫。该充电垫包括第一平面线圈、第一印刷电路板、第二印刷电路板和第一柔性电路板,所述第一平面线圈位于所述第一柔性电路板的表面或内部,所述第一柔性电路板的第一部分被层压在所述第一印刷电路板内,第二部分被层压在所述第二印刷电路板内,所述第一柔性电路板内除所述第一部分和所述第二部分之外的其他部分位于所述第一部分和所述第二部分之间。
在本实施例中,由于该其他部分所在的区域是柔性可卷曲的,因此该充电垫是可折弯的,进而应用该充电垫的无线充电器是能够卷曲且具有较小体积的。
附图说明
图1A为本申请提供的一种无线充电器的示意图。
图1B为图1A所示无线充电器处于卷曲状态时的示意图。
图2A为本申请提供的另一种无线充电器的示意图。
图2B为图2A所示辊轴201的一端的局部放大图。
图3为本申请提供的再一种无线充电器的示意图。
图4A为本申请提供的一种充电垫的示意图。
图4B为本申请提供的另一种充电垫的示意图。
图4C为本申请提供的位于充电垫内的平面线圈的结构示意图。
图5A为图4B所示充电垫沿CC’方向的剖视图。
图5B为图5A所示部件505的一种局部放大图。
图6A为图5A所示部件505的另一种局部放大的侧视图。
图6B为图5A所示部件505的另一种局部放大的俯视图。
图7A为本申请提供的再一种充电垫的示意图。
图7B为本申请提供的再一种充电垫的示意图。
图7C为本申请提供的再一种充电垫的示意图。
图8A为本申请提供的再一种充电垫的示意图。
图8B为本申请提供的再一种充电垫的示意图。
图9为本申请提供的再一种充电垫的示意图。
图10A为本申请提供的一种无线充电器的示意图。
图10B为图10A所示无线充电器内的控制结构的示意图。
图11A为本申请提供的另一种无线充电器的示意图。
图11B为图11A所示无线充电器内的控制结构的示意图。
图12A为本申请提供的无线充电器的一种应用场景图。
图12B为本申请提供的无线充电器的另一种应用场景图。
图13为本申请提供的一种无线充电器的示意图。
图14为本申请提供的无线充电方法的流程图。
具体实施方式
本申请提供一种无线充电器。如图1A所示,该无线充电器100包括辊轴101和充电垫102,该充电垫102能够卷绕在该辊轴101上。图1B示出了充电垫102在辊轴101上卷绕后的该无线充电器的结构。
该辊轴101上有一狭长的开口108,该充电垫102的一个侧边通过该开口108被固定地嵌在辊轴101的内部,则该充电垫102可以沿着该侧边一层层地卷绕在该辊轴101上。
该辊轴101通常采用刚性较强的材料制成,比如金属或塑料等。
在本申请中,该辊轴101呈柱状(如附图1A所示,辊轴101可以沿S方向延伸)。进一步地,该辊轴101的截面或端面为多边形,且该多边形内的相邻两个边之间具有倒角。换句话说,该辊轴101的侧表面具有多个平面1021,相邻两个平面之间是一个倒圆角1022。如图1B所示,在该充电垫102卷绕在该辊轴101上时,该充电垫102的刚性区贴合在该辊轴101的平面上,且该充电垫102的柔性区贴合在该辊轴101的倒圆角上。需要说明的是,所谓的刚性区是指不可弯折的区域,所谓的柔性区是可弯折的区域。对于此处所谓的刚性区或柔性区到底是指该充电垫上的什么区域,需要结合下文中对该充电垫的描述进行理解。
本申请所述的充电垫可以为矩形,该刚性区也可以为矩形,且该刚性区的长度与该充电垫的宽度相同。沿着该充电垫的长度方向,具有多个平行且间隔放置的刚性区。应当知道的是,相邻两个刚性区之间的柔性区的宽度取决于该柔性区对应的倒圆角的宽度。假设该辊轴中每相邻两个平面之间的倒圆角是相同的,该充电垫的厚度是确定的,且该充电垫在该辊轴上卷绕两层,则在第一层对应的部分充电垫中,每相邻两个刚性区之间的柔性区的宽度是相同的;在第二层对应的部分充电垫中,每相邻两个刚性区之间的柔性区的宽度也是相同的。但是,位于第一层对应的部分充电垫内的每一柔性区的宽度将小于位于第二层对应的部分充电垫内的每一柔性区的宽度。
可选的,如图1A所示,本申请所述的充电垫102的第一边缘和对该第一边缘对应的第二边缘均分布有多个磁条105a。其中,该第一边缘和该第二边缘均与该充电垫102嵌入该辊轴101的狭长开口108内的边缘相交。可选的,该第一边缘和该第二边缘均垂直于该充电垫102嵌入该辊轴101的狭长开口108内的边缘。在该充电垫102卷绕在辊轴101上时,该磁条105a用于将该充电垫102固定在该辊轴101上。在该充电垫102在该辊轴101上只卷绕一层或不满一层时,则该磁条105a吸附在该辊轴101上。在该充电垫102在该辊轴101上卷绕多层时,则位于最内层对应的部分充电垫102上的磁条105a吸附在该辊轴101上,位于第N层对应的部分充电垫102上的磁条105a吸附在位于第N-1层对应的部分充电垫102上。需要说明的是,在该充电垫102在该辊轴101上卷绕多层时,则最内层为第一层,因此容易知道,第N层位于该第N-1的外侧。
可选的,该充电垫102的第三边缘也具有至少一个磁条105b。该第三边缘与该充电垫102嵌入该辊轴101的狭长开口108内的边缘是相对的。在该充电垫102在该辊轴101上只卷绕一层或不满一层时,则该第三边缘的磁条105b吸附在该辊轴101上。在该充电垫102在该辊轴101上卷绕多层时,则该第三边缘的磁条105b吸附在卷绕在该辊轴101上的次外层的充电垫102上。
需要说明的是,请参阅附图1A,辊轴101上除了开设有狭长的开口108之外,还可以包括无线充电功率单元106,无线充电功率单元106内包含有用于无线充电的控制电路和驱动电路等。相应的,充电垫102内的线圈103与无线充电功率单元106相连接。
可选的,如图1A所示,辊轴101的内部还具有印刷电路板107,则线圈103通过该印刷电路板107与无线充电功率单元106连接。可选的,印刷电路板107为柔性的。应当知道的是,在辊轴101的内部没有印刷电路板107时,则线圈103可以通过金属导线与无线充电功率单元106连接。
作为本申请的一个实施例,如图1A所示,辊轴101的一个端面上开设有接口109。接口109可以与线缆的接口对接,从而通过该线缆接收电流。可选的,接口109可以为C型(Type-C)接口或快速(Lightning)接口等。
进一步地,辊轴101的内部还可以包含电池110,电池110用于向充电垫102内的线圈103提供电流。
作为本申请的另一个实施例,如图2A所示,它示出了本申请提供的另一种无线充电器200。辊轴201的一个端面具有凹槽211和USB接口212,该凹槽211用来容纳该USB接口212。该USB接口212具有相对于的外表面和内表面,在该USB接口212被容纳在该凹槽211内时,该USB接口212的外表面与该辊轴201的端面齐平。
可选的,如图2B所示,该USB接口212的内表面上具有磁体213a,相应的,凹槽211的槽底具有磁体213b。其中,磁体213a和磁体213b是相互吸引的。应当知道的是,通过磁体213a和磁体213b之间的相互吸引,该USB接口212被固定在该凹槽211内。
在本实施例中,如图2A所示,辊轴201的内部具有无线充电功率单元206、卷线器209和线缆210。线缆210缠绕在卷线器209上,线缆210的一端经过卷线器209后与无线充电功率单元206相连,另一端与USB接口212相连。
作为本申请的再一个实施例,如图3所示,该无线充电器300还包括电源适配器311。电源适配器311通过卡扣等机械结构固定在辊轴301上。需要说明的是,电源适配器311也呈柱状,或者说,电源适配器311也可以沿S方向延伸。进一步地,电源适配器311的第一端面朝向辊轴301的第一端面且与辊轴301的第一端面接触。
可选的,电源适配器311的第一端面上具有磁体313a,相应的,辊轴301的第一端面具有磁体313b,其中,磁体313a和磁体313b是相互吸引的。在该实现方式中,电源适配器311和辊轴301之间的固定是通过磁体313a和磁体313b之间的相互吸引实现的。
进一步地,如图3所示,电源适配器311的第二端面具有插头312。插头312是可折叠的。通常,插头312的两个脚被收容在位于所述第二端面上的收容部内,在插头312插于插座时,该插头312的两个脚从所述第二端面的收容部中伸展出来,并插入插座内。需要说明的是,在插头312的两个脚被折叠且收纳于收容部时,电源适配器311的第二端面 呈平面。
在无线充电器300还包括电源适配器311时,如图3所示,辊轴301的内部还具有卷线器309和线缆310。线缆310缠绕在卷线器309上,线缆310的一端经过卷线器309后与无线充电功率单元306相连,另一端与电源适配器311相连。在电源适配器311需要扯出时,线缆310可以沿卷线器309绕出并伸展。因此,电源适配器311可以扯出不超过线缆310长度的距离。
请参阅附图4A和4B,它示出了本申请提供的一种充电垫402。具体的,如图4A所示,充电垫402包括至少一个第一平面线圈403和第一刚性支撑板404a。该第一平面线圈403包括相邻的第一刚性部分403a和第一柔性部分403b。
应当知道的是,该第一刚性部分403a包括多根导线,该第一柔性部分403b包括多根金属线路。需要说明的是,位于该第一刚性部分403a内的导线和位于该第一柔性部分403b内的金属线路是一对一的连接的。其中,位于该第一刚性部分403a内的大部分导线的两端分别与位于该第一柔性部分403b内的金属线路的两端连接,该第一刚性部分403a内还存在一根或两根导线,这些导线的一端与位于该第一柔性部分403b内的一根金属线路的一端连接,另一端引出与辊轴内的无线充电功率单元连接。
可选的,该第一平面线圈的形状可以为圆形、椭圆形或多边形等。需要说明的是,本申请中提及的其他平面线圈(例如第二平面线圈)的形状也可以为圆形、椭圆形或多边形等。可选的,位于该充电垫内的多个平面线圈的形状是相同的。
作为本申请的一个实施例,如图4A所示,所述第一刚性部分403a位于所述第一刚性支撑板404a的上表面。进一步地,该第一刚性部分403a平铺在该第一刚性支撑板404a的上表面。应当注意的是,本申请中所谓的上表面或下表面是用于区分不同的表面。此处所谓的“该第一刚性支撑板404a的上表面”依据的是附图4A在当前页面上的显示方位。在本申请的其他部分也会出现上表面或下表面的描述,均请参考此处的解释,其他部分不再赘述。
需要说明的是,所述第一刚性支撑板404a可以采用树脂或塑料制成。可选的,所述第一刚性支撑板404a可以为印刷电路板,这种情况下,该第一刚性部分403a可以被印刷或被刻蚀在该第一刚性支撑板404a的上表面。应当知道的是,该印刷电路板可以是多层板。
值得注意的是,在本申请中,如图4A所示,该第一柔性部分403b内的金属线路是可折弯的。具体的,位于该第一柔性部分403b的金属线路可以为柔性的金属线、利兹(Litz)线或金属铰链等。可选的,在位于该第一柔性部分403b的金属线路和位于该第一刚性部分403a的导线均为同种材质的金属线(比如铜线)时,则位于该第一柔性部分403b的金属线路比位于该第一刚性部分403a的导线细(或者说,位于该第一柔性部分403b的金属线路的截面面积小于位于该第一刚性部分403a的导线的截面面积),从而使得位于该第一柔性部分403b的金属线路具有优于位于该第一刚性部分403a的导线的柔性。
需要说明的是,为了减小该第一平面线圈的电阻,位于该第一刚性部分的导线的宽度应当尽可能的大。相应的,位于该第一刚性部分且相邻的两根金属线路之间的距离应当尽可能的小。可选的,位于该第一刚性部分且相邻的两根导线之间的距离可以大于0且小于或等于0.5毫米。
为了提升该第一平面线圈在无线充电时的偏位检验效果,如图4C所示,位于该第一刚性部分403a内且相邻的两根导线之间的距离从Y平滑地过渡到X,Y大于X,且X大于0。其中,位于该第一刚性部分403a内且相邻的两根导线在靠近该第一柔性部分403b处的间距为Y,在远离该第一柔性部分403b处的间距为X。
需要说明的是,在前述实施例提供的充电垫卷绕在无线充电器的辊轴上时,该第一刚性支撑板所在的区域覆盖在所述辊轴的第一平面上,该第二柔性部分所在的区域覆盖在所述辊轴的第一倒圆角上。
应当知道的是,该辊轴的侧壁包括多个平面,该第一平面是该多个平面中的一个平面。进一步地,由于每相邻两个平面之间具有一个倒圆角,因此该辊轴的侧壁具有多个倒圆角,相应的,该第一倒圆角为该多个倒圆角中的一个。值得注意的是,所谓的多个平面通常是指三个以上,但是不排除两个甚至一个的情况。在该辊轴只有一个平面的时候,则该辊轴也只有一个倒圆角,则该一个平面即为该第一平面,且该一个倒圆角即为该第一倒圆角。在该辊轴具有两个平面的时候,则该辊轴具有两个倒圆角。
此处对“该第一刚性支撑板所在的区域”进行解释。本申请中提及的“该第一刚性支撑板所在的区域”是指所述充电垫内所述第一刚性支撑板所在的区域。具体的,可以沿着该第一刚性支撑板的边缘且沿垂直于该充电垫的方向对该充电垫进行切割,则得到的该充电垫的一部分即为该第一刚性支撑板所在的区域。
本申请其他部分还提及到“该第二柔性部分所在的区域”、“该第一印刷电路板所在的区域”或“该第二印刷电路板所在的区域”等,均可参见此处的解释进行理解,相应部分将不再赘述。
进一步地,如图4B所示,本申请提供的充电垫402还包括第二刚性支撑板404c。该第一平面线圈403的第二刚性部分403c位于该第二刚性支撑板的上表面404c。其中,该第一柔性部分403b位于该第一刚性部分403a和该第二刚性部分403c之间,且分别与该第一刚性部分403a和该第二刚性部分403c相邻。值得注意的是,如图4C所示,该第二刚性部分403c也包括多根导线,且位于该第二刚性部分403c内的导线和位于该第一柔性部分403b内的金属线路是一对一的连接的。需要说明的是,所述第一刚性部分403a、所述第一柔性部分403b和所述第二刚性部分403c均为所述第一平面线圈403的一部分。它们之间的连接关系依据的是所述第一平面线圈403内线路的盘绕走向。
可选的,位于该第二刚性部分内且相邻的两根导线之间的距离大于0且小于或等于0.5毫米。
值得关注的是,该第二刚性部分具有和该第一刚性部分相同或相似的结构。因此,可以参考本申请中对该第一刚性部分的描述去加深对该第二刚性部分理解。
请参阅图5A和5B,需要说明的是,图5A是图4B中沿着CC’切割该充电垫得到的剖面图,图5B为图5A所示柔性区505的局部放大的俯视图。如图5A和图5B所示,在所述充电垫502还包括所述第二刚性部分503c的情况下,位于所述第一柔性部分503b的每一根金属线路包括第一端部5031、与该第一端部5031相对的第二端部5032和位于该第一端部5031和该第二端部5032之间的主体部5033。所述第一端部5031与位于所述第一刚性部分503a的一根导线连接,所述第二端部5032与位于所述第二刚性部分503c的一根导线连接 (图5B中未示出)。
为了减小该主体部的厚度对该充电垫总体厚度的影响,可选的,在所述第一端部与位于所述第一刚性部分内的一根导线连接之后,所述第一端部和位于所述第一刚性部分内的所述导线的接头部的厚度和该第一刚性支撑板的厚度之和大于或等于该主体部的厚度。进一步地,在所述第二端部与位于所述第二刚性部分内的一根导线连接之后,所述第二端部和位于所述第二刚性部分内的所述导线的接头部的厚度和该第二刚性支撑板的厚度之和大于或等于该主体部的厚度。值得注意的是,每一接头部的厚度所在的方向和该主体部的厚度所在的方向均与该第一刚性支撑板的厚度所在的方向相同。
可选的,所述第一端部的宽度与位于所述第一刚性部分内的所述导线的宽度相同。进一步地,所述第二端部的宽度与位于所述第二刚性部分内的所述导线的宽度相同。
可选的,所述第一端部的宽度与所述第二端部的宽度相同。
为了满足通流以及弯折可靠性的要求,所述第一端部和所述第二端部的厚度应当尽量的薄。可选的,该第一端部和该第二端部的厚度均大于或等于0.2毫米。应当知道的是,所述第一端部和所述第二端部的厚度所在的方向与所述第一刚性支撑板(或所述第二刚性支撑板)的厚度所在的方向相同。
为了避免相邻两个该第一端部之间的间距较小而导致在焊接时发生短路。可选的,相邻两个所述第一端部之间的距离大于或等于0.5毫米。
为了避免相邻两个该第二端部之间的间距较小而导致在焊接时发生短路。可选的,相邻两个所述第二端部之间的距离大于或等于0.5毫米。
作为本申请的一个实施例,如图5B所示,所述主体部5033包括依次串接的多个金属段,其中,每相邻两个金属段相互靠近的端部相铰接。可选的,该多个金属段的侧壁的朝向与该第一刚性支撑板的上表面的朝向是相同的。该多个金属段包括第一金属段、第二金属段和位于该第一金属段与该第二金属段之间的至少一个金属段。其中,该第一金属段的一端与所述第一端部的一端相铰接,所述第一端部的另一端靠近所述第一刚性部分。所述第一端部的一端和另一端是相对的。类似地,所述第二金属段的一端与所述第二端部的一端相铰接,所述第二端部的另一端靠近所述第二刚性部分。所述第二端部的一端和另一端也是相对的。
假设所述多个金属段的数量为三个,则位于所述第一金属段和所述第二金属段之间的为第三金属段,则所述第一金属段的另一端与所述第三金属段的一端相铰接,所述第二金属段的另一端与所述第三金属段的另一端相铰接。也即,从所述第一端部到所述第二端部,依次是所述第一金属段、所述第二金属段和所述第三金属段。
作为本实施例的一种实现方式,如图5B所示,该第一端部5031包括水平部、竖直部以及位于所述水平部和所述竖直部之间的拐角。所述第一金属段包括勾合部、延伸部以及位于所述勾合部与所述延伸部之间的拐角。可选的,该第一端部5031呈┓形,且该第一金属段呈┗形。需要说明的是,该第一端部5031的水平部贴合在所述第一刚性支撑板504a的上表面,所述第一端部5031的竖直部自所述第一端部5031的拐角起向远离所述第一刚性支撑板504a的上表面的方向延伸。应当知道的是,该第一端部5031位于该第一刚性支撑板504a的边缘。
所述第一金属段的勾合部与所述第一端部5031的竖直部交叉勾合。也即,所述第一金属段的勾合部的内表面与所述第一端部5031的竖直部的内表面相接触,其中,所述第一金属段的勾合部的内表面背离所述第一刚性支撑板504a的朝向所述第一柔性部分的侧壁,所述第一端部5031的竖直部的内表面朝向所述第一刚性支撑板504a的朝向所述第一柔性部分的侧壁。或者说,所述第一金属段的勾合部的内表面与所述第一端部5031的竖直部的内表面是面对面的。需要注意的是,所述第一端部5031的竖直部的侧壁朝向所述第一金属段的延伸部的内表面,且所述第一金属段的勾合部的侧壁朝向所述第一端部5031的水平部的内表面。其中,所述第一端部5031的水平部的内表面朝向所述第一刚性支撑板504a的下表面。
进一步地,所述第一端部5031的竖直部的侧壁抵接在所述第一金属段的拐角处。或者,所述第一金属段的勾合部的侧壁抵接在所述第一端部5031的拐角处。
可选的,所述第一金属段的勾合部的外表面贴合在所述第一刚性支撑板504a的朝向所述第一柔性部分的侧壁上,应当知道的是,所述第一金属段的勾合部的外表面与所述第一金属段的勾合部的内表面是相对的。
可选的,为了保证该第一端部5031的水平部与该第一刚性支撑板504a的上表面之间连接的可靠性,所述第一端部5031的水平部的长度大于或等于1毫米。该第一端部5031的水平部可以焊接在该第一刚性支撑板504a的上表面。为了确保该第一端部5031的水平部被固定在该第一刚性支撑板504a的上表面,还可以先将该第一端部5031的水平部焊接在该第一刚性支撑板504a的上表面,然后在通过点胶的方式进行进一步的固定。
作为本实施例的另一种实现方式,如图5B所示,该第二端部5032包括水平部、竖直部以及位于所述水平部和所述竖直部之间的拐角。所述第二金属段包括勾合部、延伸部以及位于所述勾合部与所述延伸部之间的拐角。
可选的,该第二端部5032呈┏形,且该第一金属段呈┛形。需要说明的是,该第二端部5032的水平部贴合在所述第二刚性支撑板504c的上表面,所述第二端部5032的竖直部自所述第二端部5032的拐角起向远离所述第二刚性支撑板504c的上表面的方向延伸。应当知道的是,该第二端部5032位于该第二刚性支撑板504c的边缘。
所述第二金属段的勾合部与所述第二端部5032的竖直部交叉勾合。也即,所述第二金属段的勾合部的内表面与所述第二端部5032的竖直部的内表面相接触,其中,所述第二金属段的勾合部的内表面背离所述第二刚性支撑板504c的朝向所述第一柔性部分的侧壁,所述第二端部5032的竖直部的内表面朝向所述第二刚性支撑板504c的朝向所述第一柔性部分的侧壁。或者说,所述第二金属段的勾合部的内表面与所述第二端部的竖直部的内表面是面对面的。需要注意的是,所述第二端部5032的竖直部的侧壁朝向所述第二金属段的延伸部的内表面,且所述第二金属段的勾合部的侧壁朝向所述第二端部5032的水平部的内表面。其中,所述第二端部5032的水平部的内表面朝向所述第二刚性支撑板504c的下表面。
进一步地,所述第二端部5032的竖直部的侧壁抵接在所述第二金属段的拐角处。或者,所述第二金属段的勾合部的侧壁抵接在所述第二端部5032的拐角处。
可选的,所述第二金属段的勾合部的外表面贴合在所述第二刚性支撑板504c的朝向所述第一柔性部分的侧壁上。应当知道的是,所述第二金属段的勾合部的外表面与所述第二 金属段的勾合部的内表面是相对的。
可选的,所述第二端部的水平部的长度大于或等于1毫米。
作为本申请的再一个实施例,如图6A和6B所示,所述主体部为一根金属导线6035。可选的,该金属导线的外表面具有绝缘层。该绝缘层可以是涂覆在该金属导线外表面的绝缘漆,也可以是包裹在该金属导线外表面的绝缘皮。
作为本实施例的一种实现方式,如图6A所示,该第一刚性支撑板604a靠近所述第一柔性部分603b的边缘具有一个台阶607,相应的,所述第一刚性支撑板604a的上表面包括顶面和台阶面。其中,该第一刚性支撑板604a的台阶面的高度小于该第一刚性支撑板604a的顶面的高度。可选的,该第一刚性支撑板604a的顶面的高度是该第一刚性支撑板604a的台阶面的高度的二倍。该第一刚性支撑板604a的台阶面的高度是指该第一刚性支撑板604a的台阶面与该第一刚性支撑板604a的下表面之间的距离。该第一刚性支撑板604a的顶面的高度是指该第一刚性支撑板604a的顶面与该第一刚性支撑板604a的下表面之间的距离。需要说明的是,在本申请中,该第一刚性支撑板604a的顶面的高度又被称为是该第一刚性支撑板604a的厚度,或该第一刚性支撑板604a的顶面所在区域的厚度。该第一刚性支撑板604a的台阶面的高度又被称为是该第一刚性支撑板604a的台阶面所在区域的厚度。
可选的,可以通过板边铣薄的工艺设置位于该第一刚性支撑板边缘604a的台阶607。在该第一刚性支撑板604a的边缘设置台阶607的好处在于:一方面,降低该主体部的厚度对该充电垫的厚度的影响;另一方面,减小了该第一端部对于该第一柔性部分的宽度挤压,增加了位于该第一柔性部分的金属线路的长度,从而在该充电垫被弯折后,该第一端头所承受的应力被减小,进而使得该充电垫的卷绕可靠性更好。
需要说明的是,对应于位于该第一刚性支撑板604a的边缘的台阶607,该第一端部6031具有第一水平部、第二水平部和位于该第一水平部和该第二水平部之间的第一竖直部。应当知道的是,该第一端部6031的第一水平部和第一竖直部之间具有一个拐角,该第一端部6031的第一竖直部和第二水平部之间也具有一个拐角。可选的,该第一端部6031是经过两次弯折形成的。
进一步地,该第一端部6031的第一水平部贴合在该第一刚性支撑板604a的顶面并与位于该第一刚性部分的一根导线连接。该第一端部6031的第二水平部贴合在该第一刚性支撑板604a的台阶面并与位于该第一柔性部分内的一根金属线路的第一端连接。该第一端部6031的第一竖直部贴合在该第一刚性支撑板604a的朝向该第一柔性部分的上侧壁。需要说明的是,该第一刚性支撑板604a的上侧壁位于该第一刚性支撑板604a的顶面和台阶面之间,且朝向该第一柔性部分。
可选的,所述第一刚性支撑板604a的台阶面的宽度(即图6A中的a)大于或等于1.5毫米。在本申请中,可选的,该第一刚性支撑板604a的上侧壁为一个平面。需要说明的是,该台阶面的宽度所在的方向与垂直于该第一刚性支撑板604a的上侧壁的直线所在的方向是相同的。
可选的,如图6B所示,该充电垫还包括第一固定杆6033。该第一固定杆6033横跨所有的该第一端部6031的第二水平部。沿该第一固定杆6033的长度方向,该第一固定杆6033 被固定在该第一刚性支撑板604a的台阶面。可选的,该第一固定杆6033的两端分别被固定在该第一刚性支撑板604a的台阶面的不同位置。可选的,该第一固定杆6033可以被罩在壳体内。
作为本实施例的另一种实现方式,如图6A所示,该第二刚性支撑板604c靠近所述第一柔性部分的边缘具有一个台阶609,相应的,所述第二刚性支撑板604c的上表面包括顶面和台阶面。其中,该第二刚性支撑板604c的台阶面的高度小于该第二刚性支撑板604c的顶面的高度。可选的,该第二刚性支撑板604c的顶面的高度是该第二刚性支撑板604c的台阶面的高度的二倍。该第二刚性支撑板604c的台阶面的高度是指该第二刚性支撑板604c的台阶面与该第二刚性支撑板604c的下表面之间的距离。该第二刚性支撑板604c的顶面的高度是指该第二刚性支撑板604c的顶面与该第二刚性支撑板604c的下表面之间的距离。需要说明的是,在本申请中,该第二刚性支撑板604c的顶面的高度又被称为是该第二刚性支撑板604c的厚度,或该第二刚性支撑板604c的顶面所在区域的厚度。该第二刚性支撑板604c的台阶面的高度又被称为是该第二刚性支撑板604c的台阶面所在区域的厚度。
需要说明的是,对应于位于该第二刚性支撑板604c的边缘的台阶609,该第二端部6032具有第三水平部、第四水平部与位于该第三水平部和该第四水平部之间的第二竖直部。应当知道的是,该第二端部6032的第三水平部和第二竖直部之间具有一个拐角,该第二端部6032的第二竖直部和第四水平部之间也具有一个拐角。可选的,该第二端部6032是经过两次弯折形成的。
进一步地,该第二端部6032的第三水平部贴合在该第二刚性支撑板604c的顶面并与位于该第二刚性部分的一根导线连接。该第二端部6032的第四水平部贴合在该第二刚性支撑板604c的台阶面并与位于该第一柔性部分内的一根金属线路的第二端连接。应当知道的是,该金属线路6035的第一端与贴合在该第一刚性支撑板604a的台阶面的该第一端部6031的第二水平部连接。该第二端部6032的竖直部贴合在该第二刚性支撑板604c的朝向该第一柔性部分的上侧壁。需要说明的是,该第二刚性支撑板604c的上侧壁位于该第二刚性支撑板604c的顶面和台阶面之间,且朝向该第一柔性部分。
可选的,所述第二刚性支撑板604c的台阶面的宽度大于或等于1.5毫米。在本申请中,可选的,该第二刚性支撑板604c的上侧壁为一个平面。需要说明的是,该台阶面的宽度所在的方向与垂直于该第二刚性支撑板604c的上侧壁的直线所在的方向是相同的。
该第二刚性支撑板604c和该第一刚性支撑板604a可以对称的。因此,前述关于该第一刚性支撑板604a的限定同样适用于该第二刚性支撑板604c,为了节约篇幅,此处不再赘述。
可选的,该充电垫还包括第二固定杆6034。该第二固定杆6034横跨所有的该第二端部6032的第四水平部。沿该第二固定杆6034的长度方向,该第二固定杆6034被固定在该第二刚性支撑板604c的台阶面。可选的,该第二固定杆6034被固定在该第二刚性支撑板604c的台阶面上。具体的,该第二固定杆6034的两端可以分别被固定在该第二刚性支撑板604c的台阶面的不同位置。可选的,该第二固定杆6034可以被罩在壳体内。
值得注意的是,该第一固定杆或该第二固定杆采用的是非导电材料,比如塑料。该第 一固定杆(或该第二固定杆)有利于增强该充电垫的平整度,加强位于该第一端部(或第二端部)和位于该第一柔性部分的金属线路之间连接的可靠性,也有利于焊接时的定位。
需要说明的是,本申请中出现的位于名字前的第一、第二、第三以及第四等序数词,仅用于区分(比如第一端部和第二端部,是为了区分它们是不同的端部),它们本身没有任何限定的意思。比如所述第二端部包括第三水平部和第四水平部,这个仅用来限定该第二端部包括两个水平部,而不是说该第二端部还包括第一水平部和第二水平部。此处之所以命名为第三水平部和第四水平部,是因为第一和第二水平部在本申请的其他地方用过了。为了避免混淆,因此文中将位于第二端部内的两个水平部分别命名为第三水平部和第四水平部。
在该充电垫还具有第二刚性支撑板以及该第一平面线圈还具有第二刚性部分的情况下,若该充电垫卷绕在该辊轴上,则该第二刚性部分所在的区域覆盖该辊轴的第二平面。需要说明的是,该第二平面和该第一倒圆角是相邻的,且该第二平面和该第一平面分别位于该第一倒圆角的两侧。自然,该第二平面也是该辊轴侧壁包括的多个平面中的其中一个。
在前述关于充电垫的实施例的基础上,本申请还提供了如下的实施例。具体的,如图7A、7B和7C所示,该充电垫700还包括至少一个第二平面线圈和第三刚性支撑板704。其中,该第二平面线圈包括相邻的第三刚性部分和第二柔性部分。其中,该第三刚性部分包括多根导线,该第二柔性部分包括多根金属线路。需要说明的是,位于该第二柔性部分的金属线路是可折弯的。进一步地,该第二柔性部分和该第一柔性部分分别位于该第三刚性支撑板704的两侧。该第三刚性部分位于该第三刚性支撑板704的上表面。可选的,该第三刚性支撑板704为印刷电路板,则位于该第三刚性部分的导线可以被印刷或被刻蚀在该第三刚性支撑板704的上表面。该多层印刷电路板可以为多层板。值得注意的是,在本实施例中,该第三刚性支撑板704和该第二刚性支撑板703层叠放置。可选的,该第三刚性支撑板704的边缘和该第二刚性支撑板703的边缘是对齐的。
需要说明的是,该第三刚性支撑板704和该第二刚性支撑板703可以为层叠在同一印刷电路板内的两个子板。
在本实施例所述的充电垫卷绕在辊轴上时,该第二柔性部分所在的区域覆盖所述辊轴的第二倒圆角上。需要说明的是,该第二倒圆角和前述的第二平面是相邻的,且该第二倒圆角和该第一倒圆角分别位于该第二平面的两侧。应当知道的是,第二倒圆角位于该辊轴的侧壁,是该辊轴包括的多个倒圆角中的一个。
值得注意的是,在本实施例所述的充电垫中,该第三刚性支撑板所在的区域和该第二刚性支撑板所在的区域是该充电垫的同一个区域。
进一步地,如图7A、7B和7C所示,该充电垫700还包括第四刚性支撑板706,相应的,该第二平面线圈还包括第四刚性部分。其中,该第二柔性部分位于该第三刚性部分和该第四刚性部分之间,且分别与该第三刚性部分和该第四刚性部分相邻。该第四刚性部分位于该第四刚性支撑板706的上表面。可选的,该第四刚性支撑板706为印刷电路板,则位于该第四刚性部分的导线可以被印刷在该第四刚性支撑板706的上表面。
作为本实施例的一种实现方式,如图7A所示,该第三刚性支撑板704的下表面朝向该第二刚性支撑板703的上表面,且该第三刚性支撑板704的上表面背离该第二刚性支撑板 703的上表面。也即,该第三刚性支撑板704放置在该第二刚性支撑板703的上方。可选的,该第二刚性支撑板703的上表面和该第一刚性支撑板701的上表面位于同一平面。
进一步地,该第四刚性支撑板706的上表面和该第三刚性支撑板704的上表面位于同一平面。或者,第四刚性支撑板706的上表面和该第一刚性支撑板701的上表面位于同一平面。
作为本实施例的另一种实现方式,如图7B和7C所示,该第二刚性支撑板703的下表面朝向该第三刚性支撑板704的上表面,且该第二刚性支撑板703的上表面背离该第三刚性支撑板704的上表面。也即,该第二刚性支撑板703放置在该第三刚性支撑板704的上方。可选的,该第三刚性支撑板704的上表面和该第一刚性支撑板701的上表面位于同一平面。
进一步地,如图7C所示,该第四刚性支撑板706的上表面和该第三刚性支撑板704的上表面位于同一平面。或者,如图7B所示,该第四刚性支撑板706的上表面和该第二刚性支撑板703的上表面位于同一平面。
在该第三刚性支撑板704的上表面和该第一刚性支撑板701的上表面位于同一平面时,容易知道,该第一刚性支撑板701和该第三刚性支撑板704位于同一层,该第二刚性支撑板703位于该第三刚性支撑板704的上一层。在该充电垫比较薄时,则该第一平面线圈跟待充电的终端设备之间的距离比较小。这种情况下,容易出现无线充电的发射端和接收端过耦合,进而出现频率分叉的问题。本实施例中,将该第二刚性支撑板703设置在该第三刚性支撑板704的上方,会使该第一平面线圈的第一刚性部分与该接收端之间的距离远于该第一平面线圈的第二刚性部分与该接收端之间的距离,这种设计能够在一定程度上解决过耦合而导致的频率分叉的问题,进而能够将该充电垫进一步做薄。
进一步地,因为该第一刚性支撑板701的上表面和该第二刚性支撑板703的上表面不位于同一平面,且该第二刚性支撑板703所在的层位于该第一刚性支撑板701所在的层的上方,所以柔性区域的金属线路适用图5B、图6A、图6B所示结构,并且容易明白的,应该做一些变形。第一端部应当与该第一刚性支撑板的顶部连接(或焊接),而该第二端部应当与该第二刚性支撑板的底部连接(或焊接)。
在该充电垫还包括第四刚性支撑板以及该第二平面线圈还包括第四刚性部分时,若该充电垫卷绕在辊轴上,则该第四刚性支撑板所在的区域覆盖该辊轴的第三平面。应当知道的是,该第三平面和该第二倒圆角相邻,且该第三平面和该第二平面分别位于该第二倒圆角的两侧。该第三平面也为该辊轴的侧壁包括的多个平面中的一个。
本申请还提供了另一种充电垫,如图8A所示,该充电垫包括第一平面线圈805、第一印刷电路板801和第一柔性电路板802。所述第一平面线圈805包括相邻的第一部分和第二部分。进一步地,该第一部分被刻蚀在该第一印刷电路板801的表面或内部,且该第二部分被刻蚀在该第一柔性电路板802的表面或内部。
可选的,该第一印刷电路板801和该第一柔性电路板802的厚度相同。
在本实施例所述的充电垫卷绕在辊轴上时,则该第一印刷电路板所在的区域覆盖该辊轴的一个平面,该第一柔性电路板所在的区域覆盖该辊轴的一个倒圆角。应当知道的是,该一个平面和该一个倒圆角是相邻的。
进一步地,如图8B所示,所述第一平面线圈805还包括与所述第二部分相邻的第三部分,且该第二部分位于该第一部分和该第三部分之间。需要说明的是,该第三部分被刻蚀在该第二印刷电路板803的表面或内部。
在本实施例所述的充电垫卷绕在辊轴上时,则该第一印刷电路板所在的区域覆盖该辊轴的一个平面,该第一柔性电路板所在的区域覆盖该辊轴的一个倒圆角,且该第二印刷电路板所在的区域覆盖该辊轴的另一个平面。应当知道的是,该一个平面和该另一个平面均与该一个倒圆角相邻,且分别位于该一个倒圆角的两侧。
本申请还提供了另一种充电垫,如图9所示,该充电垫包括第一平面线圈905、第一印刷电路板901、第一柔性电路板902和第二印刷电路板903。其中,该第一平面线圈905位于该第一柔性电路板902的表面或内部。可选的,该第一平面线圈905是被刻蚀在该第一柔性电路板902的表面或内部的。进一步地,该第一柔性电路板902的第一部分被层压在该第一印刷电路板901内,第二部分被层压在该第二印刷电路板903内。需要说明的是,该第一柔性电路板902还包括除该第一部分和该第二部分之外的其他部分,该其他部分位于该第一部分和该第二部分之间。
可选的,该第一印刷电路板901和该第二印刷电路板903的厚度是相同的。
在本实施例所述的充电垫卷绕在辊轴上时,则该第一印刷电路板所在的区域覆盖该辊轴的一个平面,该其他所在的区域覆盖该辊轴的一个倒圆角,且该第二印刷电路板所在的区域覆盖该辊轴的另一个平面。应当知道的是,该一个平面和该另一个平面均与该一个倒圆角相邻,且分别位于该一个倒圆角的两侧。
作为本申请的再一个实施例,如图7A所示,该充电垫700还可以包括一张导磁片708。如图7A所示,位于最下层的刚性支撑板的下表面(比如该第一刚性支撑板701的下表面)与该导磁片708的上表面相接触。在该第二刚性支撑板703的上表面和该第一刚性支撑板701的上表面位于同一平面时(请参阅图7A),则该第二刚性支撑板703和该第一刚性支撑板701可以均为位于最下层的刚性支撑板。这种情况下,该第二刚性支撑板703的下表面和该第一刚性支撑板701的下表面均与该导磁片708的上表面相接触。在该第一刚性支撑板701的上表面、该第三刚性支撑板704的上表面和该第四刚性支撑板706的上表面均位于同一平面时(请参阅图7C),则该第一刚性支撑板701、该第三刚性支撑板704和该第四刚性支撑板706可以均为最下层的刚性支撑板。这种情况下,该第一刚性支撑板701的下表面、该第三刚性支撑板704的下表面和该第四刚性支撑板706的下表面均与该导磁片708的上表面相接触。
可选的,该充电垫还可以包括多张导磁片。该多张导磁片的数量和该充电垫内位于最下层的刚性支撑板的数量相同,且该多张导磁片和位于最下层的多个刚性支撑板是一对一的。具体的,在该第二刚性支撑板的上表面和该第一刚性支撑板的上表面位于同一平面时,则该第二刚性支撑板和该第一刚性支撑板可以均为位于最下层的刚性支撑板。这种情况下,该第二刚性支撑板的下表面与一个导磁片的上表面相接触,该第一刚性支撑板的下表面与另一个导磁片的上表面相接触。可选的,每一导磁片的边缘与对应刚性支撑板的边缘是对齐的。
需要说明的是,前述导磁片可以使用磁材料制成。该磁材料可以为铁氧体、非晶、纳 米晶或金属粉芯等中的一种或多种。
作为本申请的再一个实施例,如图10A所示,该充电垫包括多个相互隔离的第一平面线圈(1103a和1103b),且每一第一平面线圈均包括第一刚性部分、第二刚性部分以及位于该第一刚性部分和该第二刚性部分之间的第一柔性部分。对应的,每个第一刚性部分均被一个第一刚性支撑板所支撑,每个第二刚性部分均被一个第二刚性支撑板所支撑。如图10B所示,在本实施例提供的充电垫应用在无线充电器中时,该无线充电器会包括多个控制电路(比如控制电路A和控制电路B)。
可选的,每一控制电路用于控制一个或多个该第一平面线圈。应当知道的是,通过一个该控制电路的导通和关断,可以控制对应的该第一平面线圈被充电或停止被充电。可选的,如图10B所示,多个该第一平面线圈和多个该控制电路是一对一的。也即,每一控制电路用于控制一个该第一平面线圈。
应当知道的是,在充电垫包括多个相互隔离的第一平面线圈时,该充电垫可以同时对多个终端设备进行充电。
如图11A所示,在该充电垫包括多个相互隔离的第一平面线圈(比如第一平面线圈1203a和1203b)的基础上,该充电垫还可以包括多个第二平面线圈(比如第二平面线圈1203c和1203d)。应当知道的是,该第二平面线圈的数量小于或等于该第一平面线圈的数量。如前所述,该第二平面线圈包括第三刚性部分、第四刚性部分以及位于该第三刚性部分和该第四刚性部分之间的第二柔性部分。其中,该第三刚性部分被第三刚性支撑板所支撑,该第四刚性部分被该第四刚性支撑板所支撑。值得注意的是,该第三刚性支撑板与该第二刚性支撑板是层叠放置的。可选的,该第三刚性支撑板与该第二刚性支撑板是边缘对齐的。进一步可选的,该第三刚性部分在该第二刚性支撑板的上表面的投影与该第二刚性部分是至少部分重叠的。如图11B所示,在本实施例提供的充电垫应用在无线充电器中时,该无线充电器会包括多个控制电路(比如控制电路A和控制电路B)。
可选的,每一控制电路可以控制至少一个该第一平面线圈,或至少一个该第二平面线圈,还可以既控制至少一个该第一平面线圈又控制至少一个该第二平面线圈。如图11B所示,控制电路1既控制第一平面线圈1203a又控制第二平面线圈1203c;控制电路2既控制第一平面线圈1203b又控制第二平面线圈1203d.
容易知道的是,如图12A和12B所示,本实施例提供的充电垫应用在无线充电器中时,该无线充电器既可以只对一个待充电设备进行充电,也可以为两个以上的待充电设备进行充电。
应当知道的是,本申请提供的多种充电垫可以应用于本申请提供的无线充电器中。
本申请还提供了一种无线充电器的充电方法。值得注意的是,该无线充电器为前述实施例所述的无线充电器。进一步地,如图13所示,该无线充电器1300还包括显示部件1037。显示部件1037用于显示被充电设备的电量信息。
具体的,如图14所示,该充电方法包括下述步骤。
S1、在该无线充电器的充电垫上有待充电设备时,该无线充电器识别该待充电设备的身份信息。
在步骤S1之前,该方法还包括:该无线充电器检测该充电垫上是否有待充电设备。
具体的,在该无线充电器的充电垫上有待充电设备时,该无线充电器还会与该待充电设备建立通信连接,并通过该连接获取该待充电设备的配置信息,以及根据该配置信息确定该待充电设备的身份信息。
应当知道的是,该待充电设备的身份信息用于唯一地标识该待充电设备。
需要说明的是,该无线充电器和该待充电设备之间可以采用近距离通信方式,比如频内(In-Band)通信、蓝牙通信或无线网络(WIFI)等。
S2、该无线充电器根据该待充电设备的身份信息判断该待充电设备的类别,并根据该待充电设备的类别对该待充电设备进行充电。
其中,属于同一类别的多个待充电设备可以接受相同的充电电压,或充电电流,或充电功率。该待充电设备的类别可以包括手机、手表或耳机等。
可选的,在步骤S2之后,该方法还可以包括:该无线充电器实时接收该待充电设备的电量信息并显示。
可选的,在判断该待充电设备的类别之后,该方法还可以包括:显示该待充电设备的类别。
应当知道的是,该待充电设备的电量信息是由该待充电设备发送给该无线充电器的。
进一步地,该无线充电器还包括不同类型的灯(比如呼吸灯)。可选的,每种类型的灯的数量为一个。其中,每种类型的灯对应一个类别的待充电设备,且每个类别的待充电设备对应一种类型的灯。则步骤S2具体为:该无线充电器根据该待充电设备的身份标识判断该待充电设备的类别,并根据该待充电设备的类别点亮对应类型的灯,以及对该待充电设备进行充电。
应当知道的是,前述实施例仅为本发明的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应该以权利要求的保护范围为准。

Claims (27)

  1. 一种无线充电器,其特征在于,包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上,所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角;
    所述充电垫包括第一平面线圈和第一刚性支撑板,所述第一平面线圈包括相邻的第一刚性部分和第一柔性部分,所述第一刚性部分位于所述第一刚性支撑板的上表面,位于所述第一柔性部分内的金属线路是可折弯的;
    在所述充电垫卷绕在所述辊轴上时,所述第一刚性支撑板所在的区域覆盖所述辊轴的第一平面,所述第一柔性部分所在的区域覆盖所述辊轴的第一倒圆角。
  2. 根据权利要求1所述的无线充电器,其特征在于,所述充电垫还包括第二刚性支撑板,相应的,所述第一平面线圈还包括与所述第一柔性部分相邻的第二刚性部分,所述第一柔性部分位于所述第一刚性部分和所述第二刚性部分之间,所述第二刚性部分位于所述第二刚性支撑板的上表面;
    在所述充电垫卷绕在所述辊轴上时,所述第二刚性支撑板所在的区域覆盖所述辊轴的第二平面。
  3. 根据权利要求2所述的无线充电器,其特征在于,所述充电垫还包括第二平面线圈和第三刚性支撑板,所述第二平面线圈包括相邻的第三刚性部分和第二柔性部分,所述第三刚性部分位于所述第三刚性支撑板的上表面,位于所述第二柔性部分内的金属线路是可折弯的;
    所述第三刚性支撑板和所述第二刚性支撑板层叠放置,则所述充电垫内所述第三刚性支撑板所在的区域和所述第二刚性支撑板所在的区域是同一个区域;
    所述第二柔性部分和所述第一柔性部分分别位于所述第三刚性部分的两侧,则在所述充电垫卷绕在所述辊轴上时,所述第二柔性部分所在的区域覆盖所述辊轴的第二倒圆角。
  4. 根据权利要求3所述的无线充电器,其特征在于,所述充电垫还包括第四刚性支撑板,相应的,所述第二平面线圈还包括与所述第二柔性部分相邻的第四刚性部分,所述第二柔性部分位于所述第三刚性部分和所述第四刚性部分之间,所述第四刚性部分位于所述第四刚性支撑板的上表面;
    在所述充电垫卷绕在所述辊轴上时,所述第四刚性支撑板所在的区域覆盖所述辊轴的第三平面。
  5. 一种充电垫,其特征在于,包括第一平面线圈和第一刚性支撑板,所述第一平面线圈包括相邻的第一刚性部分和第一柔性部分,所述第一刚性部分位于所述第一刚性支撑板的上表面,位于所述第一柔性部分内的金属线路是可折弯的。
  6. 根据权利要求5所述的充电垫,其特征在于,还包括第二刚性支撑板,相应的,所述第一平面线圈还包括与所述第一柔性部分相邻的第二刚性部分,所述第一柔性部分位于所述第一刚性部分和所述第二刚性部分之间,所述第二刚性部分位于所述第二刚性支撑板的上表面。
  7. 根据权利要求6所述的充电垫,其特征在于,位于所述第一柔性部分内的每一金属线路包括靠近所述第一刚性部分的第一端部、靠近所述第二刚性部分的第二端部以及位于 所述第一端部和所述第二端部之间的主体部,所述第一端部与所述第一刚性部分的一根导线连接,所述第二端部与所述第二刚性部分的一根导线连接;
    位于所述第一刚性部分内的一根导线和所述第一端部的接头部的厚度与所述第一刚性支撑板的厚度之和大于或等于所述主体部的厚度,位于所述第二刚性部分内的一根导线和所述第二端部的接头部的厚度与所述第二刚性支撑板的厚度之和也大于或等于所述主体部的厚度。
  8. 根据权利要求7所述的充电垫,其特征在于,所述主体部包括串接的多个金属段,相邻两个金属段相铰接,所述多个金属段包括第一金属段、第二金属段和位于所述第一金属段与所述第二金属段之间的至少一个金属段,其中,所述第一金属段的一端与所述第一端部相勾合,所述第二金属段的一端与所述第二端部相勾合。
  9. 根据权利要求8所述的充电垫,其特征在于,所述第一端部包括水平部、竖直部以及位于所述水平部和所述竖直部之间的拐角,所述第一金属段包括勾合部、延伸部以及位于所述勾合部与所述延伸部之间的拐角;
    所述第一端部的水平部贴合在所述第一刚性支撑板的上表面并与所述第一刚性部分内的一根导线连接,所述第一端部的竖直部自所述第一端部的拐角起向远离所述第一刚性支撑板的上表面的方向延伸;
    所述第一金属段的勾合部与所述第一端部的竖直部交叉勾合,所述第一金属段的延伸部自所述第一金属段的拐角起向远离所述第一刚性支撑板朝向所述第一柔性部分的侧壁的方向延伸,且所述第一金属段的延伸部与相邻的金属段相铰接。
  10. 根据权利要求9所述的充电垫,其特征在于,所述第一端部的竖直部的侧壁朝向所述第一金属段的延伸部的内表面,且所述第一金属段的勾合部的侧壁朝向所述第一端部的水平面的内表面。
  11. 根据权利要求8至10任一项所述的充电垫,其特征在于,所述第二端部包括水平部、竖直部以及位于所述水平部与所述竖直部之间的拐角,所述第二金属段包括勾合部、延伸部以及位于所述勾合部和所述延伸部之间的拐角;
    所述第二端部的水平部贴合在所述第二刚性支撑板的上表面并与所述第二刚性部分内的一根导线连接,所述第二端部的竖直部自所述第二端部的拐角起向远离所述第二刚性支撑板的上表面延伸;
    所述第二金属段的勾合部与所述第二端部的竖直部交叉勾合,所述第二金属段的延伸部自所述第二金属段的拐角起向远离所述第二刚性支撑板朝向所述第一柔性部分的侧壁的方向延伸,且所述第二金属段的延伸部与相邻的金属段相铰接。
  12. 根据权利要求11所述的充电垫,其特征在于,所述第二端部的竖直部的侧壁朝向所述第二金属段的延伸部的内表面,且所述第二金属段的勾合部的侧壁朝向所述第二端部的水平部的内表面。
  13. 根据权利要求7所述的充电垫,其特征在于,所述主体部为一根金属导线。
  14. 根据权利要求13所述的充电垫,其特征在于,所述第一刚性支撑板靠近所述第一柔性部分的边缘具有一个台阶,所述第一刚性支撑板的上表面包括顶面和台阶面,所述第一刚性支撑板的顶面凸出于所述第一刚性支撑板的台阶面;
    所述第一端部具有第一水平部、第一竖直部和第二水平部,所述第一端部的第一竖直部位于所述第一端部的第一水平部和第二水平部之间;
    所述第一端部的第一水平部贴合在所述第一刚性支撑板的顶面并与位于所述第一刚性部分的一根导线连接,所述第一端部的第二水平部贴合在所述第一刚性支撑板的台阶面并与位于所述第一柔性部分内的一根所述金属线路的第一端连接,
    所述第一端部的第一竖直部贴合在所述第一刚性支撑板的上侧壁,所述第一刚性支撑板的上侧壁位于所述第一刚性支撑板的顶面和台阶面之间,且朝向所述第一柔性部分。
  15. 根据权利要求14所述的充电垫,其特征在于,还包括第一固定杆,所述第一固定杆横跨多个所述第一端部的第二水平部,沿所述第一固定杆的长度方向,所述第一固定杆被固定在所述第一刚性支撑板的台阶面。
  16. 根据权利要求13至15任一项所述的充电垫,其特征在于,所述第二刚性支撑板靠近所述第一柔性部分的边缘具有一个台阶,所述第二刚性支撑板的上表面包括顶面和台阶面,所述第二刚性支撑板的顶面凸出于所述第二刚性支撑板的台阶面;
    所述第二端部具有第三水平部、第二竖直部和第四水平部,所述第二端部的第二竖直部位于所述第二端部的第三水平部和第四水平部之间;
    所述第二端部的第三水平部贴合在所述第二刚性支撑板的顶面并与位于所述第二刚性部分的一根导线连接,所述第二端部的第四水平部贴合在所述第二刚性支撑板的台阶面并与位于所述第一柔性部分内的一个所述金属线路的第二端连接,其中,所述金属线路包括第一端和与所述第一端相对的第二端;所述第二端部的第二竖直部贴合在所述第二刚性支撑板的上侧壁,所述第二刚性支撑板的上侧壁位于所述第二刚性支撑板的顶面和台阶面之间,且朝向所述第一柔性部分。
  17. 根据权利要求16所述的充电垫,其特征在于,还包括第二固定杆,所述第二固定杆横跨多个所述第二端部的第四水平部,沿所述第二固定杆的长度方向,所述第二固定杆被固定在所述第二刚性支撑板的台阶面。
  18. 根据权利要求6至17任一项所述的充电垫,其特征在于,还包括第二平面线圈和第三刚性支撑板,所述第二平面线圈包括相邻的第三刚性部分和第二柔性部分,所述第三刚性部分位于所述第三刚性支撑板的上表面,位于所述第二柔性部分内的金属线路是可折弯的,所述第三刚性支撑板和所述第二刚性支撑板层叠放置,且所述第二柔性部分和所述第一柔性部分分别位于所述第三刚性部分的两侧。
  19. 根据权利要求18所述的充电垫,其特征在于,所述第三刚性支撑板的下表面朝向所述第二刚性支撑板的上表面,且所述第三刚性支撑板的上表面背离所述第二刚性支撑板的上表面,所述第二刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。
  20. 根据权利要求18所述的充电垫,其特征在于,所述第二刚性支撑板的下表面朝向所述第三刚性支撑板的上表面,且所述第二刚性支撑板的上表面背离所述第三刚性支撑板的上表面,所述第三刚性支撑板的上表面和所述第一刚性支撑板的上表面位于同一平面。
  21. 根据权利要求19或20所述的充电垫,其特征在于,还包括第四刚性支撑板,相应的,所述第二平面线圈还包括与所述第二柔性部分相邻的第四刚性部分,所述第二柔性部分位于所述第三刚性部分和所述第四刚性部分之间,所述第四刚性部分位于所述第四刚 性支撑板的上表面,所述第四刚性支撑板的上表面和所述第三刚性支撑板的上表面位于同一平面,或者,所述第四刚性支撑板的上表面和所述第二刚性支撑板的上表面位于同一平面。
  22. 一种无线充电器,其特征在于,包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上,所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角;
    所述充电垫包括第一平面线圈、第一印刷电路板和第一柔性电路板,所述第一平面线圈包括相邻的第一部分和第二部分,所述第一部分位于所述第一印刷电路板的表面或内部,所述第二部分位于所述第一柔性电路板的表面或内部;
    在所述充电垫卷绕在所述辊轴上时,所述第一印刷电路板所在的区域覆盖所述辊轴的第一平面,所述第一柔性电路板所在的区域覆盖所述辊轴的第一倒圆角。
  23. 根据权利要求22所述的无线充电器,其特征在于,所述充电垫还包括第二印刷电路板,相应的,所述第一平面线圈还包括与所述第二部分相邻的第三部分,且所述第二部分位于所述第一部分和所述第三部分之间,其中,所述第三部分位于所述第二印刷电路板的表面或内部;
    在所述充电垫卷绕在所述辊轴上时,所述第二印刷电路板所在的区域覆盖所述辊轴的第二平面。
  24. 一种充电垫,其特征在于,包括第一平面线圈、第一印刷电路板和第一柔性电路板,所述第一平面线圈包括相邻的第一部分和第二部分,所述第一部分位于所述第一印刷电路板的表面或内部,所述第二部分位于所述第一柔性电路板的表面或内部。
  25. 根据权利要求24所述的充电垫,其特征在于,还包括第二印刷电路板,相应的,所述第一平面线圈还包括与所述第二部分相邻的第三部分,且所述第二部分位于所述第一部分和所述第三部分之间;其中,所述第三部分位于所述第二印刷电路板的表面或内部。
  26. 一种无线充电器,其特征在于,包括呈柱状的辊轴和充电垫,所述充电垫的一个侧边嵌在所述辊轴内,所述充电垫能够沿所述侧边卷绕在所述辊轴上,所述辊轴的侧壁包括多个平面和位于相邻两个平面之间的倒圆角;
    所述充电垫包括第一平面线圈、第一印刷电路板、第二印刷电路板和第一柔性电路板,所述第一平面线圈位于所述第一柔性电路板的表面或内部,所述第一柔性电路板的第一部分被层压在所述第一印刷电路板内,第二部分被层压在所述第二印刷电路板内,所述第一柔性电路板内除所述第一部分和所述第二部分之外的其他部分位于所述第一部分和所述第二部分之间;
    在所述充电垫卷绕在所述辊轴上时,所述第一印刷电路板所在的区域覆盖所述辊轴的第一平面,所述其他部分所在的区域覆盖所述辊轴的第一倒圆角,所述第二印刷电路板所在的区域覆盖所述辊轴的第二平面。
  27. 一种充电垫,其特征在于,包括第一平面线圈、第一印刷电路板、第三印刷电路板和第一柔性电路板,所述第一平面线圈位于所述第一柔性电路板的表面或内部,所述第一柔性电路板的第一部分被层压在所述第一印刷电路板内,第二部分被层压在所述第二印刷电路板内,所述第二柔性电路板内除所述第一部分和所述第二部分之外的其他部分位于所述第一部分和所述第二部分之间。
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