CN111049207A - Wireless charging device - Google Patents
Wireless charging device Download PDFInfo
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- CN111049207A CN111049207A CN201910252802.4A CN201910252802A CN111049207A CN 111049207 A CN111049207 A CN 111049207A CN 201910252802 A CN201910252802 A CN 201910252802A CN 111049207 A CN111049207 A CN 111049207A
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- charging
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- transmitting end
- charging device
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Abstract
The invention discloses a wireless charging device, which comprises a transmitting end iron core and a transmitting end coil, wherein the transmitting end iron core is provided with a bottom plate and two vertical plates to form an ㄩ shape, a charging space is formed in the transmitting end iron core, and one or more wireless power receiving devices can be placed in the transmitting end iron core; each wireless power receiving device comprises a receiving end coil and a receiving end iron core plate, wherein the receiving end iron core plate is vertical to the vertical plate of the transmitting end iron core; when current flows through the transmitting end coil, an electromagnetic field is generated in the charging space and passes through each receiving end iron core plate through the vertical plate of the transmitting end iron core to form an electromagnetic field loop, so that each receiving end coil can induce the electromagnetic field to generate charging power.
Description
This application is a divisional application of the original application (application date 2015, 8/24/201510522457.3, entitled wireless charging device and charging method thereof).
Technical Field
The present invention relates to a wireless charging device and a charging method thereof, and more particularly, to a wireless charging device and a charging method thereof for charging a plurality of power receiving terminals.
Background
Fig. 1 shows a schematic diagram of a conventional wireless charging device, which includes a power transmitting terminal 10 and a power receiving terminal 20, where the power transmitting terminal 10 has a transmitting terminal coil 11 and a transmitting terminal iron core plate 12, and the power receiving terminal 20 also has a receiving terminal coil 21 and a receiving terminal iron core plate 22, the power transmitting terminal 10 and the power receiving terminal 20 are close to each other in parallel, when the transmitting terminal coil 11 is powered on, an electromagnetic field is generated and transmitted to the receiving terminal iron core plate 22 through the transmitting terminal iron core plate 12, and the electromagnetic field generates induced power through the receiving terminal coil 21, so as to achieve the purpose of wireless charging.
However, the conventional wireless charging devices are all charged one-to-one, and the devices of the power receiving terminal 20 are all laid on the charging platform of the power transmitting terminal 10 for wireless charging, and if more than one power receiving terminal 20 device needs wireless charging, the original power receiving terminal 20 device can only be replaced by another power receiving terminal 20 device after the charging is completed, which is quite inconvenient and takes much waiting time. The reason for this is that the electromagnetic field of the charging platform of the known power transmission terminal 10 is transmitted upward (as shown by the arrow in the figure), and the iron core plate in the lying power receiving terminal 20 absorbs the electromagnetic field, so that the electromagnetic field cannot be transmitted outward any more, unless the charging platform of the power transmission terminal 10 is large, a plurality of lying power receiving terminal 20 devices cannot be accommodated, but the space is large, and the commercialization possibility is not high.
Disclosure of Invention
Therefore, it is necessary to develop a method for wirelessly charging a plurality of power receiving end devices and a device for allowing a plurality of power receiving end devices to stand, lie or tilt, so as to wirelessly charge a plurality of power receiving end devices simultaneously and reduce the space occupied by the charging platform.
To achieve the above object, the present invention provides a wireless charging device using an electromagnetic field to transmit a charging power, comprising:
a transmitting end having:
a first transmitting end coil surrounding a charging space;
the iron core vertical plate is arranged on the periphery of the first transmission end coil and surrounds the charging space to enhance the electromagnetic field energy in the charging space;
a wireless power receiving device includes:
a receiving end coil; and
a receiving end iron core plate corresponding to the receiving end coil;
when current flows through the first transmitting end coil, the electromagnetic field is generated in the charging space, so that the receiving end coils all induce the electromagnetic field to generate the charging power.
The wireless charging device further comprises a plurality of wireless power receiving devices, each of which comprises:
a receiving end coil; and
a receiving end iron core plate corresponding to the receiving end coil;
the wireless power receiving devices can be arranged in the charging space at the same time, and when current flows through the first transmitting end coil, the electromagnetic field is generated in the charging space, so that the wireless power receiving devices all induce the electromagnetic field to generate the charging power.
The above-mentioned wireless charging device further comprises a charging seat made of non-metallic material, wherein the charging seat has an opening corresponding to the charging space, and the iron core vertical plate is disposed on a sidewall of the charging seat.
In the above-mentioned wireless charging device, the charging base further includes a plurality of sliding slots corresponding to the wireless power receiving devices for limiting the placing directions of the wireless power receiving devices, and the sliding slots are made of non-metal material.
In the above wireless charging device, the charging base further includes a bottom portion not parallel to the sidewall portion, and the bottom portion and the sidewall portion form the charging space.
In the above wireless charging device, the first transmitting end coil has a first winding shaft, the first winding passes through the charging space, and the iron core vertical plate has a closed structure surrounding the first winding shaft.
In the above wireless charging device, the transmitting end further has a second transmitting end coil of a second bobbin, which has a flat structure and is disposed at one side of the charging space.
In the above wireless charging device, the first and second bobbins are parallel to each other.
In the above wireless charging device, the transmitting terminal further includes an iron core base plate facing the second transmitting terminal coil.
In the above wireless charging device, the second transmitting end coil is closer to the charging space than the core plate.
The invention aims at the prior art and has the advantages that the space occupied by the wireless charging device is greatly reduced, a plurality of wireless power receiving devices can be wirelessly charged, and the plurality of power receiving devices can stand, stand horizontally, lie horizontally or stand obliquely.
Drawings
Fig. 1 is a charging diagram of a conventional wireless charging device.
Fig. 2 is a schematic diagram of a wireless charging device according to a preferred embodiment of the present invention.
Fig. 3 is a perspective view of fig. 2.
Fig. 4 is a perspective view of a wireless charging device according to a first embodiment of the invention.
Fig. 5 is a perspective view of a wireless charging device according to a second embodiment of the invention.
Fig. 6 is a perspective view of a wireless charging device according to a third embodiment of the invention.
Fig. 7 is a perspective view of a wireless charging device according to a fourth embodiment of the invention.
Fig. 8 is a schematic view of another preferred embodiment of the wireless charging device of the present invention.
Fig. 9 is a schematic view of a wireless charging device according to another embodiment of the present invention.
Fig. 10 is a schematic diagram of an inverted wireless charging device of fig. 9 according to still another embodiment.
Wherein, the reference numbers:
100 wireless charging device
110 transport end core
111 base plate
112 vertical plate
113 charging space
200 wireless power receiving device
210 receiving end iron core plate
211 long side
212 short side
220 receiving end coil
300 charging seat
310 bottom
311 short board
312 card slot
320 side wall part
321 chute
322 baffle plate
323 accommodating groove
324 inclined baffle
325 groove channel
400 wireless charging device
410 inner layer transmission end iron core
411 bottom plate
412 vertical plate
420 outer layer transmission end iron core
421 bottom plate
422 vertical plate
430 transmission end coil
500 wireless charging device
510 transport end core
511 backplane
512 vertical plate
520 first transmission terminal coil
530 second transmitting end coil
Detailed Description
The wireless charging device 100 of the present invention is capable of wirelessly charging a plurality of wireless power receiving devices 200 at the same time, and the wireless power receiving devices 200 may be portable devices such as smart phones and tablet computers, or wearable devices such as smart watches, bluetooth headsets, or video glasses. The wireless power receiving devices 200 each include a receiving-end core plate 210 and a receiving-end coil 220, and are substantially flat and thin rectangular. Fig. 2 is a schematic view of a wireless charging device 100 according to a preferred embodiment of the present invention, and fig. 3 is a perspective view of fig. 2. The wireless charging device 100 includes a transmitting end iron core 110 and a transmitting end coil 120, the transmitting end iron core 110 has a bottom plate 111 connected with two vertical plates 112 to form an ㄩ shape, a charging space 113 is formed between the two vertical plates 112, and a plurality of wireless power receiving devices 200 can be placed in the charging space 113 to be charged simultaneously. The present invention has various embodiments for arranging and placing the wireless power receiving device 200, which will be described in detail later.
As shown in fig. 2, the principle and method of the wireless charging device 100 of the present invention for charging a plurality of wireless power receiving devices 200 simultaneously uses the ㄩ -shaped transmitting end core 110 of the wireless charging device 100 to place the receiving end core plate 210 and the receiving end coil 220 in the charging space 113 between the two vertical plates 112, and the receiving end core plate 210 is perpendicular to the two vertical plates 112. Therefore, when the current flows through the transmitting end coil 120, an electromagnetic field is generated in the charging space 113, and passes through each receiving end iron core plate 210 through the two vertical plates 112 to form an electromagnetic field loop, as shown by the flow of the dotted arrow in fig. 2, and each receiving end coil 220 induces the electromagnetic field to generate the charging power. Therefore, when a plurality of wireless power receiving devices 200 are arranged in the charging space 113 between the two vertical plates 112, each receiving-end core plate 210 can independently generate an electromagnetic field loop with the transmitting-end core 110, so that the wireless power receiving devices can be charged simultaneously, and the wireless power receiving devices 200 can be charged no matter how far away from the bottom plate 111 within the range between the two vertical plates 112.
As shown in fig. 2 and 3, the wireless power receiving device 200 is transversely erected between the two vertical plates 112 and is perpendicular to the bottom plate 111, but in other embodiments of the present invention, the wireless power receiving device 200 can be erected between the two vertical plates 112, and of course, can be horizontally (parallel) laid on the bottom plate 111, or obliquely (not parallel or perpendicular to the bottom plate) laid between the two vertical plates 112 (not shown), as long as the receiving-end iron core plate 210 of the wireless power receiving device 200 is perpendicular to the two vertical plates 112. In one embodiment of the present invention, the transmitting end coil 120 (not shown) can be wound into a set of concentric spiral planar coils, and disposed on the inner surface of either side of the bottom plate 111 and/or the two vertical plates 112. The wireless charging device 100 of the present invention can wirelessly charge up to 50 wireless power receiving devices 200 at the same time through experiments, depending on how many wireless power receiving devices 200 can be wirelessly charged by configuring the transmitting end coil 120 of the present invention.
In order to place a plurality of wireless power receiving devices 200 to perform charging simultaneously and reduce the volume of the wireless charging device 100 as much as possible, fig. 4 is a schematic perspective view of a wireless charging device 100 according to a first embodiment of the present invention, and the wireless charging device 100 further includes a charging base 300 made of a non-metallic material, wherein the charging base 300 has an ㄩ shape with three open ends and includes a bottom 310 and two side walls 320, the charging space 113 is formed inside the charging base, and the bottom plate 111 and the two vertical plates 112 of the transmitting end iron core 110 are respectively disposed inside the bottom 310 and the two side walls 320 of the charging base 300.
In this embodiment, a plurality of sliding grooves 321 are formed on the inner surface of the two side wall portions 320, and extend from the top to the bottom 310, so that the side edges of the wireless power receiving devices 200 can be placed into the charging space 113 along the sliding grooves 321, the wireless power receiving devices 200 are erected in the charging space 113, and the wireless power receiving devices 200 are perpendicular to the two vertical plates 112 of the iron core 110 without a transmitting end. Since the conventional smart phone is rectangular and thin, and has a long side 211 and a short side 212, in this embodiment, the long side 211 is perpendicular to the bottom plate 111 of the transmitting end core 110, and the short side 212 is parallel to the bottom plate 111 of the transmitting end core 110, i.e. the short side 212 faces downward and is placed in the charging stand 300.
Referring to fig. 5 and 2 together, fig. 5 is a perspective view illustrating a wireless charging device according to a second embodiment of the present invention, and fig. 2 is a side sectional view illustrating fig. 5, in this embodiment, the charging base 300 is shaped like ㄩ with three open ends, a plurality of parallel short plates 311 are disposed on an inner surface of a bottom 310 of the charging base 300 to form a plurality of slots 312, such that when the wireless power receiving devices 200 are placed in the charging space 113, one edge of the wireless power receiving device 200 is placed in the slot 312, such that the wireless power receiving devices 200 can be arranged in the charging base 300 in a standing manner, and the wireless power receiving device 200 is perpendicular to two vertical plates 112 (not shown) of the transmitting end iron core 110. In the present embodiment, the short side 212 is perpendicular to the bottom plate 111 of the transmitting end core 110, and the long side 211 is parallel to the bottom plate 111 of the transmitting end core 110, in other words, the long side 211 faces downward and is placed in the charging stand 300.
Referring to fig. 6 and 2, fig. 6 is a perspective view illustrating a wireless charging device according to a third embodiment of the present invention, and fig. 2 can be regarded as a top cross-sectional view illustrating fig. 6, in this embodiment, the charging base 300 is shaped like a box with an opening at one side, wherein the bottom plate 111 (dotted line) of the transmitting end iron core 110 is disposed at the opposite side of the opening, the two vertical plates 112 (dotted line) are disposed on the two side walls 320, in this embodiment, a plurality of parallel partition plates 322 are disposed inside the two side walls 320, a plurality of accommodating grooves 323 are formed, a wireless power receiving device 200 can be placed in each accommodating groove 323, and the wireless power receiving devices 200 are arranged in the charging space 113 in a manner parallel to the bottom plate 111.
Referring to fig. 7, fig. 7 is a perspective view illustrating a wireless charging device according to a fourth embodiment of the present invention, in which the charging base 300 is in a box shape with an opening at one side, wherein the bottom plate 111 of the transmitting end iron core 110 is disposed at the bottom 310 of the charging base 300, and the two vertical plates 112 are disposed on the two sidewall portions 320. In the embodiment, a plurality of parallel inclined baffles 324 are disposed on the inner side surfaces of the two side wall portions 320, and a plurality of inclined grooves 325 extending from the side openings to the opposite sides are formed, so that when the wireless power receiving devices 200 are disposed in the charging space 113, the wireless power receiving devices 200 are arranged in the charging space in an inclined manner that is not parallel to or perpendicular to the bottom plate 111, but the receiving-end iron core plates 210 of the wireless power receiving devices 200 are still perpendicular to the two vertical plates 112.
Referring to fig. 8, fig. 8 is a schematic view of another preferred embodiment of the wireless charging device according to the present invention. In the embodiment, the wireless charging device 400 has a plurality of transmitting end cores, the transmitting end cores include at least an inner transmitting end core 410 and an outer transmitting end core 420, wherein each of the inner transmitting end core 410 and the outer transmitting end core 420 has a bottom plate 411, 421 and two vertical plates 412, 422, and the inner transmitting end core 410 is stacked in the charging space 113 of the outer transmitting end core 420. In the embodiment of fig. 8, two layers of the transmitting end cores are stacked, wherein the bottom plate 411 and the two vertical plates 412 of the inner layer transmitting end core 410 are parallel to the bottom plate 421 and the two vertical plates 422 of the outer layer transmitting end core 420. However, in other embodiments, the bottom plate and the two vertical plates of the inner layer of the transmitting end core may be non-parallel to the bottom plate and the two vertical plates of the outer layer of the transmitting end core, and the number of stacked transmitting end cores and the manner of stacking the inner and outer layer of the transmitting end cores are not limited to the illustrated embodiments of the present invention.
In the embodiment of fig. 8, the two vertical plates 412 of the inner transmitting iron core 410 are shorter than the two vertical plates 422 of the outer transmitting iron core 420, and the top ends of the two vertical plates 422 of the outer transmitting iron core 420 are bent inward into an L shape, so that the two vertical plates 422 of the outer transmitting iron core 420 can be close to the wireless power receiving devices 200. In addition, in the present embodiment, the wireless charging device 400 has a plurality of transmitting end coils 430, and each transmitting end coil 430 corresponds to a transmitting end core 410, 420. The embodiment of fig. 8 of the present invention can be used in the charging seat of fig. 4 to fig. 7, which is not described again.
Referring to fig. 9, fig. 9 is a schematic view of a wireless charging device according to another preferred embodiment of the present invention. In the embodiment, the wireless charging device 500 includes a transmitting end core 510 and a first transmitting end coil 520, wherein the transmitting end core 510 has a bottom plate 511 and at least one vertical plate 512 surrounding the side edge of the bottom plate 511, so that the transmitting end core 510 is in a cylindrical shape with one end open, and a charging space 113 is formed therein, as shown in fig. 9, the vertical plate 512 is in a rectangular cylindrical shape, while in other embodiments (not shown), the transmitting end core may be in a circular cylindrical shape with one end open, an oval cylindrical shape, or other polygonal cylindrical shapes.
In the embodiment, the first transmitting end coil 520 surrounds the inner surface of the vertical plate 512, so that when a current flows through the first transmitting end coil 520, an electromagnetic field is generated in the charging space 113 inside the vertical plate 512, and when the wireless power receiving devices 200 are placed in the charging space 113, each receiving end coil induces the electromagnetic field to generate a charging power. In the present embodiment, the wireless power receiving devices 200 can be placed in the charging space 113 in any way, because as long as the wireless power receiving device 200 is in the charging space surrounded by the first transmitting end coil 520 and the transmitting end core 510, the wireless power receiving device 200 can induce an electromagnetic field to generate charging power.
In this embodiment, the wireless charging device 500 further includes a second transmitting end coil 530 disposed on the bottom plate 511, the second transmitting end coil 530 is wound into a set of concentric spiral planar coils disposed on the inner surface of the bottom plate 511, so that when a current flows through the second transmitting end coil 530, an electromagnetic field is generated in the charging space 113, and thus the electromagnetic field energy in the charging space 113 can be enhanced by adding the electromagnetic field generated by the first transmitting end coil 520, and when the wireless power receiving devices 200 are placed in the charging space 113, the receiving end coils can induce the electromagnetic field with enhanced energy to generate charging power, thereby increasing the charging speed of the wireless power receiving devices 200.
Please refer to fig. 10, which is a schematic view of an inverted embodiment of the wireless charging device of fig. 9, wherein a bottom plate 511 of the transmitting end core 510 is a rectangular core plate, the inner side surface of a vertical plate 512 is also wound with the first transmitting end coil 520, and the second transmitting end coil 530 is wound on the outer side surface of the bottom plate 511, so that the bottom plate 511 and the vertical plate 512 of the transmitting end core 510 both have coil windings, thereby enhancing the electromagnetic field energy in the charging space 113.
In the embodiment of fig. 9 and 10, the wireless charging device 500 can be disposed in a charging base (not shown), the charging base is made of non-metal material and is matched with the shape of the transmitting end iron core 510, the charging base can be in a rectangular cylinder shape, a circular cylinder shape, an oval cylinder shape, a polygonal cylinder shape, or the like with one end open, the bottom plate 511 of the transmitting end iron core 510 is disposed at the bottom of the charging base, and the vertical plate 512 of the transmitting end iron core 510 is disposed at the side wall of the charging base. Similarly, the charging space in the charging base can be provided with a plurality of sliding slots 321 as shown in fig. 4, a plurality of parallel short plates 311 as shown in fig. 5, or a plurality of partition plates 322 or inclined baffle plates 324 as shown in fig. 6 and 7, so that the wireless power receiving devices 200 can be arranged in the charging base in a neat manner, such as horizontally standing, horizontally lying or inclined arrangement.
In summary, the present invention provides a wireless charging device and a charging method thereof, which can wirelessly charge a plurality of wireless power receiving devices simultaneously, and greatly reduce the space occupied by the wireless charging device, and have many effects and advantages that cannot be achieved by the known wireless charging device.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications shall fall within the scope of the appended claims.
Claims (10)
1. A wireless charging device for transferring a charging power by using an electromagnetic field, the wireless charging device comprising:
a transmitting end having:
a first transmitting end coil surrounding a charging space;
the iron core vertical plate is arranged on the periphery of the first transmission end coil and surrounds the charging space to enhance the electromagnetic field energy in the charging space;
a wireless power receiving device includes:
a receiving end coil; and
a receiving end iron core plate corresponding to the receiving end coil;
when current flows through the first transmitting end coil, the electromagnetic field is generated in the charging space, so that the receiving end coils all induce the electromagnetic field to generate the charging power.
2. The wireless charging device of claim 1, further comprising a plurality of wireless power receiving devices each having:
a receiving end coil; and
a receiving end iron core plate corresponding to the receiving end coil;
the wireless power receiving devices can be arranged in the charging space at the same time, and when current flows through the first transmitting end coil, the electromagnetic field is generated in the charging space, so that the wireless power receiving devices all induce the electromagnetic field to generate the charging power.
3. The wireless charging device of claim 2, further comprising a charging base made of non-metallic material, wherein the charging base has an opening corresponding to the charging space, and the vertical iron core plate is disposed on a sidewall of the charging base.
4. The wireless charging device of claim 3, wherein the charging dock further comprises a plurality of sliding slots corresponding to the wireless power receiving devices for limiting the orientation of the wireless power receiving devices, and the sliding slots are made of non-metal material.
5. The wireless charging device of claim 4, wherein the charging dock further comprises a bottom portion not parallel to the sidewall portion, and the bottom portion and the sidewall portion form the charging space.
6. The wireless charging device as claimed in claim 1, wherein the first transmitting end coil has a first winding axis, the first winding axis passes through the charging space, and the core standing plate has a closed structure surrounding the first winding axis.
7. The wireless charging device of claim 6, wherein the transmitting end further comprises a second transmitting end coil of a second bobbin having a flat structure disposed at one side of the charging space.
8. The wireless charging device of claim 7, wherein the first and second bobbins are parallel to each other.
9. The wireless charging device of claim 7, wherein the transmitter further comprises a core substrate for the second transmitter coil.
10. The wireless charging device of claim 9, wherein the second transmitting end coil is closer to the charging space than the core plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015103490007 | 2015-06-23 | ||
| CN201510349000 | 2015-06-23 | ||
| CN201510522457.3A CN106300495B (en) | 2015-06-23 | 2015-08-24 | Wireless charging device and its charging method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522457.3A Division CN106300495B (en) | 2015-06-23 | 2015-08-24 | Wireless charging device and its charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111049207A true CN111049207A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910252802.4A Pending CN111049207A (en) | 2015-06-23 | 2015-08-24 | Wireless charging device |
| CN201510522457.3A Active CN106300495B (en) | 2015-06-23 | 2015-08-24 | Wireless charging device and its charging method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510522457.3A Active CN106300495B (en) | 2015-06-23 | 2015-08-24 | Wireless charging device and its charging method |
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| CN (2) | CN111049207A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109246514B (en) * | 2018-09-30 | 2020-05-08 | 歌尔科技有限公司 | Wireless loudspeaker and earphone |
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| JP2001190029A (en) * | 1999-12-28 | 2001-07-10 | Matsushita Electric Ind Co Ltd | Charger |
| CN1647342A (en) * | 2002-04-08 | 2005-07-27 | 阿尔卑斯电气株式会社 | Charging apparatus |
| CN101147308A (en) * | 2006-10-24 | 2008-03-19 | 翰林Postech株式会社 | Non-contact charger available of wireless data and power transmission, charging battery-pack and mobile divice using non-contact charger |
| CN103368215A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Wireless charging device based on magnetic induction |
| KR20140115839A (en) * | 2013-03-22 | 2014-10-01 | 삼성전기주식회사 | Cordless charging apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06225482A (en) * | 1993-01-26 | 1994-08-12 | Matsushita Electric Works Ltd | Power feeding apparatus |
| GB0210886D0 (en) * | 2002-05-13 | 2002-06-19 | Zap Wireless Technologies Ltd | Improvements relating to contact-less power transfer |
| US9312924B2 (en) * | 2009-02-10 | 2016-04-12 | Qualcomm Incorporated | Systems and methods relating to multi-dimensional wireless charging |
| CN204905941U (en) * | 2015-08-24 | 2015-12-23 | 台湾东电化股份有限公司 | Radio charger |
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2015
- 2015-08-24 CN CN201910252802.4A patent/CN111049207A/en active Pending
- 2015-08-24 CN CN201510522457.3A patent/CN106300495B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001190029A (en) * | 1999-12-28 | 2001-07-10 | Matsushita Electric Ind Co Ltd | Charger |
| CN1647342A (en) * | 2002-04-08 | 2005-07-27 | 阿尔卑斯电气株式会社 | Charging apparatus |
| CN101147308A (en) * | 2006-10-24 | 2008-03-19 | 翰林Postech株式会社 | Non-contact charger available of wireless data and power transmission, charging battery-pack and mobile divice using non-contact charger |
| CN103368215A (en) * | 2012-03-31 | 2013-10-23 | 深圳光启创新技术有限公司 | Wireless charging device based on magnetic induction |
| KR20140115839A (en) * | 2013-03-22 | 2014-10-01 | 삼성전기주식회사 | Cordless charging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106300495A (en) | 2017-01-04 |
| CN106300495B (en) | 2019-04-05 |
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Application publication date: 20200421 |