CN213213120U - Wireless charger and corresponding charging system - Google Patents
Wireless charger and corresponding charging system Download PDFInfo
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- CN213213120U CN213213120U CN202021257088.2U CN202021257088U CN213213120U CN 213213120 U CN213213120 U CN 213213120U CN 202021257088 U CN202021257088 U CN 202021257088U CN 213213120 U CN213213120 U CN 213213120U
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- wireless charger
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- magnetic attraction
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Abstract
The utility model provides a wireless charger and charging system who corresponds, wireless charger is used for carrying out wireless charging to electronic equipment, electronic equipment includes receiving coil and first magnetism and inhales the piece, wireless charger includes: the transmitting coil is used for generating electromagnetic induction with the receiving coil so as to wirelessly charge the electronic equipment; a second magnetic attraction member; the detection module detects the magnetic poles of the surrounding magnetic field of the receiving coil and sends a first detection signal to the control module; and the control module receives the first detection signal, controls the second magnetic attraction piece to be opened according to the first detection signal, and sets the magnetic pole of the second magnetic attraction piece to be opposite to the detected magnetic pole, so that the second magnetic attraction piece and the first magnetic attraction piece attract each other through magnetism, and the transmitting coil and the receiving coil are aligned accurately.
Description
Technical Field
The utility model relates to a wireless field of charging especially relates to a wireless charger and corresponding charging system suitable for electronic equipment.
Background
When the wireless charger is charged with electronic equipment such as a mobile phone, the magnetic attraction positioning is usually performed by arranging magnets around a transmitting coil of the wireless charger and a receiving coil of the electronic equipment, but the existing wireless charger can only be charged with the electronic equipment with a magnetic pole opposite to that of the magnet of the transmitting coil of the wireless charger, for example, when the magnetic pole of the magnet of the transmitting coil of the wireless charger is an N pole, the wireless charger can only charge the electronic equipment with an S pole, and when the electronic equipment with an N pole is placed in the wireless charger, the electronic equipment cannot be aligned accurately due to magnetic repulsion, so that the normal charging cannot be performed.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, it is desirable to provide a wireless charger and a charging system thereof, wherein the wireless charger can set its magnetic pole according to the magnetic pole of the electronic device.
The utility model provides a wireless charger for carry out wireless charging to electronic equipment, electronic equipment includes receiving coil and first magnetism and inhales piece, wireless charger includes:
the transmitting coil is used for generating electromagnetic induction with the receiving coil so as to wirelessly charge the electronic equipment;
the second magnetic part generates magnetism when the second magnetic part is opened, and the magnetism of the second magnetic part disappears when the second magnetic part is closed;
the detection module detects the magnetic pole of the first magnetic attraction piece and sends a first detection signal to the control module when the electronic equipment is placed on the wireless charger; and
the control module receives the first detection signal, controls the second magnetic attraction piece to be opened according to the first detection signal, and sets the magnetic pole of the second magnetic attraction piece to be opposite to the magnetic pole of the first magnetic attraction piece, so that the second magnetic attraction piece and the first magnetic attraction piece attract each other through magnetism, and the transmitting coil and the receiving coil are aligned accurately.
Preferably, the control module includes a magnetic pole switching unit and a switch unit, the magnetic pole switching unit changes the magnetic pole of the second magnetic member by changing the direction of the current flowing through the second magnetic member, and the switch unit controls the second magnetic member to be turned on or off by controlling the second magnetic member to be turned on or off.
Preferably, when the detection module detects that there is no magnetism around the receiving coil, the detection module sends a second detection signal to the control module, and the control module receives the second detection signal and controls the second magnetic attraction piece to close according to the second detection signal.
Preferably, the second magnetic attraction piece is arranged around the transmitting coil.
Preferably, a containing groove is formed in the middle of the second magnetic part, and the transmitting coil is contained in the containing groove.
Preferably, the control module is further configured to determine whether the transmitting coil and the receiving coil are aligned accurately, and when the control module determines that the transmitting coil and the receiving coil are aligned accurately, the control module controls the second magnetic attraction piece to close.
Preferably, the control module is further configured to obtain a charging parameter of the electronic device through the transmitting coil after controlling the second magnetic attraction piece to be turned on for a preset time, and when the charging parameter conforms to a preset parameter value, the control module determines that the transmitting coil and the receiving coil are aligned accurately.
Preferably, the charging parameter includes at least one of a charging current, a charging voltage, a charging power, or a combination of a plurality of items.
Preferably, the wireless charger further includes a pressure sensor, the detection module detects a pressure value applied to the position of the transmitting coil of the wireless charger by the electronic device through the pressure sensor, and when the pressure value detected by the detection module meets a preset pressure value, the control module judges that the transmitting coil is accurately aligned with the receiving coil.
A charging system comprises electronic equipment and the wireless charger used for charging the electronic equipment.
The utility model provides a wireless charger and charging system who corresponds passes through detection module detects the magnetic pole in magnetic field around the electronic equipment, and will the magnetic pole setting of piece is inhaled to the second magnetism is opposite with the magnetic pole that detects, makes no matter the magnetic pole of piece is inhaled to first magnetism is the N utmost point or the S utmost point, the second magnetism inhale the piece all can with first magnetism is inhaled the piece and is inhaled through magnetism mutually, and then makes transmitting coil with receiving coil is accurate counterpointing, thereby ensures electronic equipment charges normally.
Drawings
Fig. 1 is a functional block diagram of a charging system according to a preferred embodiment of the present invention.
Fig. 2 is an exploded perspective view of a wireless charger according to a preferred embodiment of the present invention.
Fig. 3 is a cross-sectional view of the wireless charger device shown in fig. 2.
Description of the main elements
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
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.
Referring to fig. 1, a preferred embodiment of the present invention provides a charging system 3, where the charging system 3 includes an electronic device 1 and a wireless charger 2, and when the electronic device 1 is placed in the wireless charger 2, the wireless charger 2 can wirelessly charge the electronic device 1, and the electronic device 1 can be a mobile phone, a tablet, a game console, and the like. In the preferred embodiment, a mobile phone is taken as an example for description.
The electronic device 1 includes a receiving coil 11 and a first magnetic attraction member 12. The receiving coil 11 is used for generating electromagnetic induction with the wireless charger 2. The first magnetic attraction member 12 is configured to magnetically attract the wireless charger 2, and in the preferred embodiment, the first magnetic attraction member 12 includes a magnet or an electromagnet.
The wireless charger 2 comprises a transmitting coil 21, a second magnetic attraction piece 22, a detection module 23 and a control module 24.
The transmitting coil 21 is configured to generate electromagnetic induction with the receiving coil 11 to wirelessly charge the electronic device 1.
The second magnetic attraction piece 22 is used for being attracted to the first magnetic attraction piece 12 through magnetism, when the second magnetic attraction piece 22 is opened, the second magnetic attraction piece 22 generates magnetism, and when the second magnetic attraction piece 22 is closed, the magnetism of the second magnetic attraction piece 22 disappears. In the preferred embodiment, the second magnetic element 22 includes an electromagnet.
When the electronic device 1 is placed in the wireless charger 2, the detecting module 23 detects the magnetic poles of the magnetic field around the receiving coil 11, and the detecting module 23 sends a first detection signal to the control module 24. The magnetic pole is an N pole or an S pole. The first detection signal includes the detected magnetic pole information.
When the detecting module 23 detects that there is no magnetism around the receiving coil 11, the detecting module 23 sends a second detection signal to the control module 24.
Specifically, the circumference of the receiving coil 11 may be defined as a distance from the receiving coil 11 within a preset range, when the magnetic field strength within the preset range is greater than a preset magnetic field strength value, it is determined that magnetism exists around the receiving coil 11, which indicates that the first magnetic attraction piece 12 is disposed in the electronic device 1 placed on the wireless charger 2, and when the magnetic field strength within the preset range is less than or equal to the preset magnetic field strength value, it is determined that magnetism does not exist around the receiving coil 11, which indicates that the first magnetic attraction piece 12 is not disposed in the electronic device 1 placed on the wireless charger 2.
In the preferred embodiment, the detecting module 23 can be a hall element.
The control module 24 receives the first detection signal, controls the second magnetic attraction member 22 to be opened according to the first detection signal, and sets the magnetic pole of the second magnetic attraction member 22 to be opposite to the detected magnetic pole, for example, when the detected magnetic pole is an N pole, the magnetic pole of the second magnetic attraction member 22 is set to be an S pole, and when the detected magnetic pole is an S pole, the magnetic pole of the second magnetic attraction member 22 is set to be an N pole, so that the second magnetic attraction member 22 can attract the first magnetic attraction member 12 through magnetism regardless of whether the magnetic pole of the first magnetic attraction member 12 is the N pole or the S pole, and the transmitting coil 21 and the receiving coil 11 are aligned accurately, thereby ensuring that the wireless charger 2 and the electronic device 1 can be charged normally.
The control module 24 further receives the second detection signal, and controls the second magnetic attraction member 22 to close according to the second detection signal.
In the preferred embodiment, the control module 24 includes a magnetic pole switching unit 241 and a switch unit 242, the magnetic pole switching unit 241 is used for setting the magnetic pole of the second magnetic attraction piece 22, and specifically, the magnetic pole switching unit 241 can change the direction of the current passing through the second magnetic attraction piece 22 to change the magnetic pole of the second magnetic attraction piece 22. The switch unit 242 is configured to control the second magnetic attraction member 22 to be turned on and off, and specifically, the switch unit 242 may control the second magnetic attraction member 22 to be turned on and off by controlling the second magnetic attraction member 22 to be powered on or powered off.
It is understood that the default state of the second magnetic attraction member 22 can be off, and when the detection module 23 detects that there is no magnetism around the receiving coil 11, no action is performed.
It can be understood that the control module 24 is further configured to determine whether the transmitting coil 21 and the receiving coil 11 are aligned correctly, and when the control module 24 determines that the transmitting coil 21 and the receiving coil 11 are aligned correctly, the control module 24 controls the second magnetic attraction element 22 to close. Therefore, the phenomenon that the electronic equipment 1 is inconvenient to take down from the wireless charger 2 by a user due to overlarge magnetic force between the wireless charger 2 and the electronic equipment 1 can be avoided.
In the first preferred embodiment, after the control module 24 controls the second magnetic attraction element 22 to be turned on for a preset time, the detection module 23 obtains the charging parameter of the electronic device 1, and when the charging parameter meets a preset parameter value, the control module 24 determines that the transmitting coil 21 and the receiving coil 11 are aligned correctly. It is understood that the predetermined time may be a short time, for example, 5 seconds, so as to prevent the magnetic force of the second magnetic attraction member 22 from interfering with the transmitting coil 21 and the receiving coil 11 and affecting the charging effect.
The charging parameter comprises at least one of charging current, charging voltage and charging power or a combination of a plurality of charging parameters.
In a second preferred embodiment, the wireless charger 2 further includes a pressure sensor (not shown), the detecting module 23 detects a pressure value applied to the transmitting coil 21 of the wireless charger by the electronic device through the pressure sensor, and when the pressure value detected by the detecting module 23 meets a preset pressure value, the control module 24 determines that the transmitting coil 21 and the receiving coil 11 are aligned correctly. It is understood that the pressure sensor may be disposed at an intermediate position of the wireless charger 2.
Referring to fig. 2 and fig. 3, the wireless charger 2 further includes a first housing 25, a second housing 26 and a circuit board 28, the second housing 26 covers the first housing 25, and an accommodating cavity 27 is formed between the first housing and the second housing, and the transmitting coil 21, the second magnetic element 22 and the circuit board 28 are accommodated in the accommodating cavity 27. The detection module 23 and the control module 24 are disposed on the circuit board 28.
In the preferred embodiment, the second magnetic element 22 is disposed around the transmitting coil 21. Specifically, the second magnetic element 22 is substantially a circular plate, a receiving slot 221 is formed in a middle position of the second magnetic element, and the transmitting coil 21 is received in the receiving slot 221.
It is understood that the second magnetic attraction member 22 may be disposed on the second housing 26 of the wireless charger 2 or other positions, and it is understood that the second magnetic attraction member 22 may also have other shapes, such as a square shape, an oval shape, etc.
The utility model provides a wireless charger 2 and charging system 3 that corresponds pass through detection module 23 detects the magnetic pole in magnetic field around electronic equipment 1, and will the magnetic pole that the piece was inhaled to the second magnetism sets up to the magnetic pole that detects is opposite, makes no matter the magnetic pole that piece 12 was inhaled to first magnetism is the N utmost point or the S utmost point, second magnetism inhale piece 22 all can with piece 12 is inhaled through magnetism looks to first magnetism, and then makes transmitting coil 21 with receiving coil 11 accurate counterpoints, thereby ensures electronic equipment 1 charges normally.
In addition, other changes may be made by those skilled in the art without departing from the spirit of the invention, and it is intended that all such changes be considered within the scope of the invention.
Claims (10)
1. The utility model provides a wireless charger for carry out wireless charging to electronic equipment, electronic equipment includes receiving coil and first magnetism and inhales piece, its characterized in that: the wireless charger includes:
the transmitting coil is used for generating electromagnetic induction with the receiving coil so as to wirelessly charge the electronic equipment;
the second magnetic part generates magnetism when the second magnetic part is opened, and the magnetism of the second magnetic part disappears when the second magnetic part is closed;
the detection module detects the magnetic pole of the first magnetic attraction piece and sends a first detection signal to the control module when the electronic equipment is placed on the wireless charger; and
the control module receives the first detection signal, controls the second magnetic attraction piece to be opened according to the first detection signal, and sets the magnetic pole of the second magnetic attraction piece to be opposite to the magnetic pole of the first magnetic attraction piece, so that the second magnetic attraction piece and the first magnetic attraction piece attract each other through magnetism, and the transmitting coil and the receiving coil are aligned accurately.
2. The wireless charger of claim 1, wherein: the control module comprises a magnetic pole conversion unit and a switch unit, the magnetic pole conversion unit changes the magnetic pole of the second magnetic part by changing the direction of current flowing through the second magnetic part, and the switch unit controls the second magnetic part to be switched on or switched off by controlling the second magnetic part to be switched on or switched off.
3. The wireless charger of claim 1, wherein: the detection module sends a second detection signal to the control module, and the control module is further used for receiving the second detection signal and controlling the second magnetic attraction piece to be closed according to the second detection signal.
4. The wireless charger of claim 1, wherein: the second magnetic attraction piece is arranged around the transmitting coil.
5. The wireless charger of claim 4, wherein: an accommodating groove is formed in the middle of the second magnetic piece, and the transmitting coil is accommodated in the accommodating groove.
6. The wireless charger of claim 1, wherein: the control module is further used for judging whether the transmitting coil and the receiving coil are accurately aligned, and when the control module judges that the transmitting coil and the receiving coil are accurately aligned, the control module controls the second magnetic attraction piece to be closed.
7. The wireless charger of claim 6, wherein: the control module is further used for acquiring the charging parameters of the electronic equipment through the detection module after the second magnetic suction piece is controlled to be started for a preset time, and when the charging parameters accord with preset parameter values, the control module judges that the transmitting coil and the receiving coil are accurately aligned.
8. The wireless charger of claim 7, wherein: the charging parameter comprises at least one of charging current, charging voltage and charging power or a combination of a plurality of charging parameters.
9. The wireless charger of claim 8, wherein: the wireless charger further comprises a pressure sensor, the detection module detects a pressure value applied to the position of the transmitting coil of the wireless charger by the electronic equipment through the pressure sensor, and when the pressure value detected by the detection module accords with a preset pressure value, the control module judges that the transmitting coil and the receiving coil are accurately aligned.
10. A charging system comprising an electronic device and a wireless charger for charging the electronic device, wherein the wireless charger is according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257088.2U CN213213120U (en) | 2020-06-30 | 2020-06-30 | Wireless charger and corresponding charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021257088.2U CN213213120U (en) | 2020-06-30 | 2020-06-30 | Wireless charger and corresponding charging system |
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| Publication Number | Publication Date |
|---|---|
| CN213213120U true CN213213120U (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021257088.2U Active CN213213120U (en) | 2020-06-30 | 2020-06-30 | Wireless charger and corresponding charging system |
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| CN (1) | CN213213120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226871A1 (en) * | 2022-05-25 | 2023-11-30 | 维沃移动通信有限公司 | Wireless charger and charging method |
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2020
- 2020-06-30 CN CN202021257088.2U patent/CN213213120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023226871A1 (en) * | 2022-05-25 | 2023-11-30 | 维沃移动通信有限公司 | Wireless charger and charging method |
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