CN111262350A - Wireless charging system - Google Patents
Wireless charging system Download PDFInfo
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- CN111262350A CN111262350A CN202010235697.6A CN202010235697A CN111262350A CN 111262350 A CN111262350 A CN 111262350A CN 202010235697 A CN202010235697 A CN 202010235697A CN 111262350 A CN111262350 A CN 111262350A
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- adsorption
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- mobile terminal
- power supply
- adsorption unit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a wireless charging system. The system comprises: the mobile terminal comprises a first charging coil arranged on the mobile terminal and a second charging coil arranged on the power supply equipment, wherein the first charging coil and the second charging coil are used for the power supply equipment to wirelessly charge the mobile terminal; the wireless charging system further comprises an electromagnetic adsorption device, wherein the electromagnetic adsorption device comprises a first adsorption unit arranged on the mobile terminal and a second adsorption unit arranged on the power supply equipment; first absorption unit and second adsorb the unit and are used for counterpointing first charging coil and second charging coil when power supply unit carries out wireless charging to mobile terminal. According to the technical scheme provided by the embodiment of the invention, the stable automatic alignment between the two charging coils in the wireless charging process is realized, convenience is provided for the use of a user, meanwhile, the magnetic attraction process is controlled by using an electromagnetic technology, and the problem of interference on equipment caused by long-time generation of magnetism is avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of equipment charging, in particular to a wireless charging system.
Background
Along with smart machine's development, the process of charging for equipment is more and more frequent, and the wireless charging mode is owing to saved the puzzlement of wiring, and the charging process is swift simple, has obtained comparatively extensive popularization on present application market, nevertheless at the in-process that carries out wireless charging, need overlap the coupling completely between two charging coils and just can have better charging effect.
Some wireless chargers applied in the prior art generally fix a device on the wireless charger through a fixing member such as a clamp, or fix the device through a nano-adhesive or a suction cup. However, these fixing methods are difficult to make the two charging coils completely aligned, and require the user to determine the placement position of the device, which causes inconvenience for the user to use, and the adsorptivity of these methods is not stable enough, and is easily affected by external force to cause the charging to be broken.
Disclosure of Invention
The embodiment of the invention provides a wireless charging system, which aims to realize relatively stable automatic alignment between two charging coils in a wireless charging process.
An embodiment of the present invention provides a wireless charging system, including: the mobile terminal comprises a first charging coil arranged on the mobile terminal and a second charging coil arranged on the power supply equipment, wherein the first charging coil and the second charging coil are used for the power supply equipment to wirelessly charge the mobile terminal;
the wireless charging system further comprises an electromagnetic adsorption device, wherein the electromagnetic adsorption device comprises a first adsorption unit arranged on the mobile terminal and a second adsorption unit arranged on the power supply equipment; first absorption unit and second adsorb the unit and are used for counterpointing first charging coil and second charging coil when power supply unit carries out wireless charging to mobile terminal.
Optionally, the first adsorption unit comprises an electromagnet, and the second adsorption unit comprises a metal piece.
Optionally, the first adsorption unit includes an electromagnet, and the second adsorption unit includes an electromagnet.
Optionally, the electromagnetic adsorption device further includes a switch unit, and the switch unit is configured to disconnect the adsorption connection between the first adsorption unit and the second adsorption unit according to a user operation.
Optionally, the switch unit comprises an inductive switch.
Optionally, the switching unit comprises a software switch.
Optionally, the switch unit comprises a mechanical switch.
Optionally, the switch unit is further configured to disconnect the adsorption connection between the first adsorption unit and the second adsorption unit for a preset time period, and recover the adsorption connection between the first adsorption unit and the second adsorption unit when the power supply device wirelessly charges the mobile terminal.
Optionally, the electromagnetic adsorption device further comprises an electric quantity detection unit arranged on the mobile terminal, the electric quantity detection unit is used for detecting the actual electric quantity of the mobile terminal, and if the actual electric quantity is higher than the preset electric quantity, the switch unit is controlled to disconnect the adsorption connection between the first adsorption unit and the second adsorption unit.
Optionally, the wireless charging system further includes a power supply device and a wire, which are disposed on the power supply device, and the power supply device is connected to the second charging coil through the wire, and is used for providing power for the second charging coil.
The embodiment of the invention provides a wireless charging system, which is characterized in that an electromagnetic adsorption device is additionally arranged, and a first adsorption unit arranged on a mobile terminal and a second adsorption unit arranged on power supply equipment in the electromagnetic adsorption device align two charging coils when the power supply equipment wirelessly charges the mobile terminal, so that the two charging coils are stably and automatically aligned in the wireless charging process, convenience is brought to the use of a user, and meanwhile, the electromagnetic technology is used, the control of the magnetic adsorption process is realized, and the problem of interference on equipment caused by long-time magnetic property is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wireless charging system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wireless charging system according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Example one
Fig. 1 is a schematic structural diagram of a wireless charging system according to a first embodiment of the present invention, as shown in fig. 1, the system includes a first charging coil 11 disposed on a mobile terminal 10 and a second charging coil 21 disposed on a power supply device 20, where the first charging coil 11 and the second charging coil 21 are used for the power supply device 20 to wirelessly charge the mobile terminal 10; the wireless charging system further comprises an electromagnetic adsorption device, wherein the electromagnetic adsorption device comprises a first adsorption unit 12 arranged on the mobile terminal 10 and a second adsorption unit 22 arranged on the power supply equipment 20; the first suction unit 12 and the second suction unit 22 are used to align the first charging coil 11 and the second charging coil 21 when the power supply device 20 wirelessly charges the mobile terminal 10.
Specifically, the first charging coil 11 is a receiving coil, the second charging coil 21 is a transmitting coil, and when the power supply device 20 wirelessly charges the mobile terminal 10, the second charging coil 21 generates a certain current in the first charging coil 11 through electromagnetic induction based on a certain frequency of alternating current, so as to wirelessly transfer electric energy from the power supply device 20 to the mobile terminal 10.
The electromagnetic adsorption device is a device for realizing the adsorption between the first charging coil 11 and the second charging coil 21 through electromagnetic magnetism, and comprises a first adsorption unit 12 and a second adsorption unit 22. Optionally, the electromagnetic adsorption device further includes a charging detection unit, where the charging detection unit may be configured to detect whether the current power supply device 20 wirelessly charges the mobile terminal 10, and when wirelessly charges, that is, when electromagnetic induction is generated between the first charging coil 11 and the second charging coil 21, control the first adsorption unit 12 and the second adsorption unit 22 to complete adsorption connection, and align the first charging coil 11 and the second charging coil 21, that is, to make the coil center points of the first charging coil 11 and the second charging coil 21 coincide. Specifically, magnetism can be generated by controlling the conduction of the electromagnetic device in the electromagnetic attraction device, so as to control the first adsorption unit 12 and the second adsorption unit 22 to complete the attraction connection.
Wherein, the first adsorption unit 12 is disposed on the mobile terminal 10. Optionally, the first adsorption unit 12 is an electromagnet or a metal member, wherein the metal member may be a metal block, a metal sheet, a metal ring, or the like made of materials such as iron, cobalt, nickel, and their alloys. When the first adsorption unit 12 is an electromagnet, it may be disposed inside the mobile terminal 10 and connected to the original internal circuit of the mobile terminal 10, or disposed outside the mobile terminal 10 and connected to the mobile terminal 10 through a data line interface, specifically, it may be a housing with the first adsorption unit 12 for being sleeved outside the mobile terminal 10 to improve the practicability and the aesthetic property of the first adsorption unit 12. When the first suction unit 12 is a metal member, it may be fixed inside or outside the mobile terminal 10 by adhesion or the like.
The second adsorption unit 22 is disposed on the power supply device 20, optionally, when the first adsorption unit 12 is an electromagnet, the second adsorption unit 22 may be a metal piece, or may be an electromagnet, and when the first adsorption unit 12 is a metal piece, the second adsorption unit 22 is an electromagnet. Optionally, when the second adsorption unit 22 is a metal member, the second adsorption unit may be fixed inside or outside the power supply device 20 in an adhesion manner, or the like, and when the second adsorption unit 22 is an electromagnet, the second adsorption unit may be disposed inside the power supply device 20 and connected to an original internal circuit of the power supply device 20.
Optionally, the first adsorption unit 12 and the second adsorption unit 22 use anti-interference devices, the first adsorption unit 12 and the first charging coil 11, and the second adsorption unit 22 and the second charging coil 21 are respectively arranged without overlapping completely, anti-interference design can be performed on a circuit where an electromagnetic device is located in the electromagnetic adsorption device, and the like, so that interference of a magnetic field generated by the electromagnetic adsorption device on the magnetic field generated in the wireless charging process is reduced.
Optionally, the first adsorption unit 12 and the second adsorption unit 22 may be one or more, and the placement positions of the first adsorption unit 12 and the second adsorption unit 22 may be designed according to the positive and negative characteristics of magnetism, or the magnetic force of an electromagnet is large or small, so that the first charging coil 11 and the second charging coil 21 are automatically aligned.
According to the technical scheme provided by the embodiment of the invention, the electromagnetic adsorption device is arranged in the wireless charging system, and the first adsorption unit 12 arranged on the mobile terminal 10 and the second adsorption unit 22 arranged on the power supply equipment 20 in the electromagnetic adsorption device align the two charging coils when the power supply equipment 20 wirelessly charges the mobile terminal 10, so that the stable automatic alignment between the two charging coils in the wireless charging process is realized, convenience is provided for the use of a user, meanwhile, the magnetic adsorption process is controlled by using the electromagnetic technology, and the problem of interference on equipment caused by long-time magnetic property is avoided.
Example two
Fig. 2 is a schematic structural diagram of a wireless charging system according to a second embodiment of the present invention. The technical solution of this embodiment is further refined on the basis of the technical solution of the above embodiment, and optionally, the electromagnetic adsorption apparatus further includes a switch unit 13, and the switch unit 13 is configured to disconnect the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 according to a user operation. Specifically, the switch unit 13 may be turned off by controlling the electromagnetic device in the electromagnetic attraction device to break the attraction connection between the first attraction unit 12 and the second attraction unit 22, that is, when the first attraction unit 12 and/or the second attraction unit 22 is an electromagnet, the electromagnet is controlled not to generate magnetism. Accordingly, the switching unit 13 may be provided to the mobile terminal 10 and/or the power supply apparatus 20 according to the types of the first adsorption unit 12 and the second adsorption unit 22. In order to facilitate understanding of the present invention, fig. 2 illustrates the first adsorption unit 12 as an electromagnet and the second adsorption unit 22 as a metal member, that is, the switch unit 13 is disposed at one end of the mobile terminal 10.
Specifically, the span of the electromagnetic force is large, and in order to realize stable alignment between the first charging coil 11 and the second charging coil 21, the magnetic force generated by the electromagnetic adsorption device is large, so that the user can conveniently pick up the mobile terminal 10 again in the process of performing wireless charging, and the inconvenience of fixing the mobile terminal 10 and the power supply device 20 together is avoided, the switch unit 13 is arranged in the electromagnetic adsorption device to disconnect the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 according to the operation of the touch switch, which indicates that the mobile terminal 10 is to be used, made by the user.
Optionally, the switch unit 13 includes an inductive switch. Specifically, the switch unit 13 may be a touch switch, an infrared switch, or the like, and may be disposed at any position on the surface of the mobile terminal 10 and/or the power supply device 20 for receiving the user sensing action. When a user is sensed to touch or approach the surface of the mobile terminal 10 or the power supply apparatus 20, the suction connection between the first suction unit 12 and the second suction unit 22 is disconnected.
Optionally, the switching unit 13 comprises a software switch. Specifically, the switch unit 13 may be a virtual switch disposed in the screen of the mobile terminal 10, and when receiving an operation such as clicking, sliding, or long pressing performed by the user in the screen of the mobile terminal 10, the suction connection between the first suction unit 12 and the second suction unit 22 may be disconnected by way of circuit control or wireless control disposed inside the mobile terminal 10.
Optionally, the switching unit 13 comprises a mechanical switch. Specifically, the switch unit 13 may be a button switch or a toggle switch or the like disposed outside the mobile terminal 10 and/or the power supply device 20, and when receiving a pressing or toggling action of a user, the switch unit disconnects the suction connection between the first suction unit 12 and the second suction unit 22.
Optionally, the switch unit 13 is further configured to restore the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 when the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is disconnected for a preset time period and when the power supply device 20 wirelessly charges the mobile terminal 10.
Specifically, after the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is disconnected, in order to facilitate the automatic alignment of the first charging coil 11 and the second charging coil 21 through the electromagnetic adsorption device again, the electromagnetic device in the electromagnetic adsorption device may be restored to the connected state after the disconnection for the preset time period, so that when the electromagnetic adsorption device detects that the power supply device 20 wirelessly charges the mobile terminal 10 again, the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is completed again. Alternatively, the preset time duration may be the time required for the user to pick up the mobile terminal 10 from the power supply device 20, so as to ensure that the wireless charging process can be performed in time.
Optionally, the electromagnetic adsorption device further includes an electric quantity detection unit disposed on the mobile terminal 10, where the electric quantity detection unit is configured to detect an actual electric quantity of the mobile terminal 10, and if the actual electric quantity is higher than a preset electric quantity, the control switch unit 13 disconnects the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22.
Specifically, when the actual power of the mobile terminal 10 is higher than the preset power, the power of the mobile terminal 10 may be considered sufficient, and at this time, in order to make it more convenient for the user to pick up the mobile terminal 10 at any time, and simultaneously, in order to reduce the interference of the magnetism between the first adsorption unit 12 and the second adsorption unit 22 on the mobile terminal 10 and the wireless charging process, the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 may be disconnected while maintaining the wireless charging state, and at the same time, the user may be prompted through an indicator lamp or a speaker disposed on the mobile terminal 10 or the power supply device 20.
Alternatively, after the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is disconnected, after the mobile terminal 10 is fully charged, if the mobile terminal 10 is not used for a long time and the power of the mobile terminal 10 is lower than the preset power and the wireless charging is performed again, the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 may be restored.
Alternatively, after the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is disconnected, if the user takes up the mobile terminal 10 once, the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 may be recovered after the user takes up the mobile terminal 10, so as to achieve automatic alignment between the first charging coil 11 and the second charging coil 21 when the user needs to perform wireless charging again.
According to the technical scheme provided by the embodiment of the invention, the switch unit 13 is arranged in the electromagnetic adsorption device, and the adsorption connection between the first adsorption unit 12 and the second adsorption unit 22 is disconnected through the switch unit 13 according to the operation of a user, so that the mobile terminal 10 can be conveniently taken up when the user needs to use the mobile terminal 10 without being influenced by the magnetic force generated by the electromagnetic adsorption device.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a wireless charging system according to a third embodiment of the present invention. The technical solution of this embodiment is further detailed on the basis of the technical solution of the above embodiment, and optionally, the wireless charging system further includes a power supply device 23 and a wire 24, which are disposed on the power supply device 20, and the power supply device 23 is connected with the second charging coil 21 through the wire 24, and is used for providing power for the second charging coil 21.
Specifically, as shown in fig. 3, power supply device 23 for supplying power to second charging coil 21 may be separately designed from second charging coil 21, and second charging coil 21 may be connected to power supply device 23 through wire 24. And then only the second charging coil 21 may be adsorbed at a corresponding position on the surface of the mobile terminal 10 to the first charging coil 11 by the second adsorption unit 22. Since the second charging coil 21 and the second suction unit 22 are generally small in size and light in weight relative to the power supply device 20, wireless charging can be performed while the user uses the mobile terminal 10 without affecting the user's holding or operation of the mobile terminal 10, without excessively increasing the weight burden of the mobile terminal 10, and the heat dissipation process of the power supply device 20 can be improved.
According to the technical scheme provided by the embodiment of the invention, the power supply device 23 for supplying power to the second charging coil 21 is separately designed from the second charging coil 21 and is connected with the second charging coil 21 through the lead 24, so that the convenience of wireless charging when a user uses the mobile terminal 10 is improved, and the stability of automatic alignment of the two charging coils is further improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A wireless charging system comprises a first charging coil arranged on a mobile terminal and a second charging coil arranged on a power supply device, wherein the first charging coil and the second charging coil are used for the power supply device to wirelessly charge the mobile terminal;
the wireless charging system is characterized by further comprising an electromagnetic adsorption device, wherein the electromagnetic adsorption device comprises a first adsorption unit arranged on the mobile terminal and a second adsorption unit arranged on the power supply equipment; the first adsorption unit and the second adsorption unit are used for aligning the first charging coil and the second charging coil when the power supply equipment wirelessly charges the mobile terminal.
2. The wireless charging system of claim 1, wherein the first adsorption unit comprises an electromagnet and the second adsorption unit comprises a metallic piece.
3. The wireless charging system of claim 1, wherein the first adsorption unit comprises an electromagnet and the second adsorption unit comprises an electromagnet.
4. The wireless charging system according to claim 1, wherein the electromagnetic adsorption device further includes a switch unit configured to disconnect the adsorption connection between the first adsorption unit and the second adsorption unit according to a user operation.
5. The wireless charging system of claim 4, wherein the switching unit comprises an inductive switch.
6. The wireless charging system of claim 4, wherein the switching unit comprises a software switch.
7. The wireless charging system of claim 4, wherein the switch unit comprises a mechanical switch.
8. The wireless charging system according to claim 4, wherein the switch unit is further configured to restore the adsorption connection between the first adsorption unit and the second adsorption unit when the adsorption connection between the first adsorption unit and the second adsorption unit is disconnected for a preset time period and the power supply device wirelessly charges the mobile terminal.
9. The wireless charging system according to claim 4, wherein the electromagnetic adsorption device further comprises an electric quantity detection unit disposed on the mobile terminal, the electric quantity detection unit is configured to detect an actual electric quantity of the mobile terminal, and if the actual electric quantity is higher than a preset electric quantity, the switch unit is controlled to disconnect the adsorption connection between the first adsorption unit and the second adsorption unit.
10. The wireless charging system according to claim 1, further comprising a power supply device and a wire, wherein the power supply device is disposed on the power supply device, and the power supply device is connected to the second charging coil through the wire and is configured to provide power to the second charging coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235697.6A CN111262350A (en) | 2020-03-30 | 2020-03-30 | Wireless charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235697.6A CN111262350A (en) | 2020-03-30 | 2020-03-30 | Wireless charging system |
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| CN111262350A true CN111262350A (en) | 2020-06-09 |
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| CN202010235697.6A Pending CN111262350A (en) | 2020-03-30 | 2020-03-30 | Wireless charging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953040A (en) * | 2021-02-08 | 2021-06-11 | Oppo广东移动通信有限公司 | Electronic equipment, control method thereof and electronic equipment system |
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- 2020-03-30 CN CN202010235697.6A patent/CN111262350A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112953040A (en) * | 2021-02-08 | 2021-06-11 | Oppo广东移动通信有限公司 | Electronic equipment, control method thereof and electronic equipment system |
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