CN112531917B - Wireless charging receiving device and electronic equipment - Google Patents
Wireless charging receiving device and electronic equipment Download PDFInfo
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- CN112531917B CN112531917B CN202011320851.6A CN202011320851A CN112531917B CN 112531917 B CN112531917 B CN 112531917B CN 202011320851 A CN202011320851 A CN 202011320851A CN 112531917 B CN112531917 B CN 112531917B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
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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
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a wireless charging receiving device and electronic equipment. The receiving device comprises a plurality of receiving coils with different sizes and further comprises: the device comprises a foreign matter detection module, a driving module and a control module; the foreign matter detection module is used for detecting foreign matter shielding information of the receiving end face of the wireless charging receiving device; and the control module is used for calculating the residual effective chargeable area according to the detection result of the foreign matter detection module, switching the receiving coil with the corresponding size, and controlling the driving module to drive the receiving coil to move to the range of the residual receivable magnetic field so as to avoid the foreign matters. This application is through setting up a plurality of receiving coil of unidimensional not to and foreign matter detection module, control module and drive module, when detecting that there is the foreign matter in the receiving terminal surface, can switch the receiving coil of suitable size, and drive receiving coil through drive module and remove to the surplus can receive the magnetic field within range, thereby dodge the foreign matter, guarantee wireless charging's efficiency, thereby can shorten charge time, improve user experience.
Description
Technical Field
The present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging receiving apparatus and an electronic device.
Background
The current Wireless charging technology is developing vigorously, and the Qi Wireless charging standard is applied most widely in the consumer electronics industry, and Qi is a Wireless charging standard released by the Wireless charging alliance (Wireless Power Consortium), which is the first global organization for promoting Wireless charging technology, and has two major characteristics of convenience and universality, and is widely applied to the design of mobile phones, bracelets, virtual reality wearable devices and the like.
However, in the use of wireless charging, foreign matters cannot be mixed between the wireless charging transmitting terminal and the wireless charging receiving terminal: if magnetic-isolating foreign matters are mixed, the electromagnetic field between the transmitting end and the receiving end can be greatly isolated, the efficiency of transmitting energy is greatly reduced, the electric energy receiving efficiency of the wireless charging receiving end is seriously influenced, the charging time is prolonged, and even the normal charging cannot be realized.
Disclosure of Invention
In view of the problem that the charging efficiency is damaged due to the fact that foreign matters are mixed in the wireless charging transmitting terminal and the wireless charging receiving terminal in the prior art, the wireless charging receiving device and the electronic equipment are provided so as to overcome the problem.
In order to achieve the purpose, the following technical scheme is adopted in the application:
according to an aspect of the present application, there is provided a wireless charging receiving apparatus, the receiving apparatus including a plurality of receiving coils of different sizes, further including: the device comprises a foreign matter detection module, a driving module and a control module;
the foreign matter detection module is used for detecting foreign matter shielding information of the receiving end face of the wireless charging receiving device;
and the control module is used for calculating the residual effective chargeable area according to the detection result of the foreign matter detection module, switching the receiving coil with the corresponding size according to the residual effective chargeable area, and controlling the driving module to drive the receiving coil to move to the residual receivable magnetic field range so as to avoid the foreign matters.
Optionally, the foreign object detection module is specifically configured to detect magnetic flux everywhere on the receiving end face of the wireless charge receiving device;
and the control module is specifically used for determining the position and the area of a shielding magnetic field of the foreign matters by comparing the magnetic fluxes at all positions of the receiving end face, and calculating to obtain the residual effective chargeable area according to the receivable total magnetic field area.
Optionally, the control module is specifically configured to select a largest available receiving coil according to a remaining effective chargeable area and a size of the plurality of receiving coils, so that the largest available receiving coil is wirelessly charged.
Optionally, the foreign object detection module includes: a hall flux sensor.
Optionally, the receiving coil is circular or square in shape.
Optionally, the driving module includes a motor driving module and a motor module connected to each other, and the motor module can drive the receiving coil to move and/or rotate in the receiving end surface.
Optionally, an electric machine module comprising: two stepping motors with different driving directions and a gear transmission mechanism; alternatively, the motor module includes: a servo motor.
Optionally, the apparatus further comprises: and the voltage stabilizing and boosting module is connected with the receiving coil and used for boosting the induced electromotive force generated by the receiving coil and then supplying the boosted induced electromotive force to the battery for charging.
Optionally, the apparatus further comprises: the alarm module is used for giving an alarm when the foreign matter detection module detects the foreign matter;
and the control module is used for switching the receiving coils with corresponding sizes after the alarm module sends out the alarm for preset time, and controlling the driving module to drive the receiving coils to move to the range of the residual receivable magnetic field so as to avoid foreign matters.
According to another aspect of the present application, there is provided an electronic device provided with the wireless charge receiving apparatus as defined in any one of the above.
To sum up, the beneficial effect of this application is:
this application is provided with a plurality of receiving coil of unidimensional not to and foreign matter detection module, control module and drive module, when detecting that there is the foreign matter in the receiving terminal surface, can switch the receiving coil of suitable size, and drive receiving coil through drive module and remove to the surplus receivable magnetic field within range, thereby dodge the foreign matter, guarantee wireless charging's efficiency, thereby can shorten charge time, improve user experience.
Drawings
Fig. 1 is a schematic diagram illustrating a configuration of a wireless charge receiving apparatus system according to an embodiment of the present application;
fig. 2 is a schematic physical structure diagram of a wireless charge receiving device according to an embodiment of the present application;
fig. 3 is a schematic view illustrating a configuration of a wireless charging receiving apparatus system according to another embodiment of the present application;
in the figure, the wireless charging receiving device 100, the foreign object detection module 110, the housing 101, the circuit board 102, the lithium ion battery 103, the control module 120, the driving module 130, the X-axis motor 131, the Y-axis motor 132, the card slot 133, the receiving coil 140, the voltage stabilizing and boosting module 150, and the alarm module 160.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and operate, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Qi is a "Wireless charging" standard proposed by the Wireless charging alliance (Wireless Power Consortium), which is the first global organization for promoting Wireless charging technology, and has two major characteristics of convenience and universality.
The technical idea of the application is as follows: the problem that the receiving end face of the wireless charging receiving device is shielded by foreign matters is solved, a plurality of receiving coils with different sizes are arranged, the foreign matter detection module, the control module and the driving module are used for switching the receiving coils with proper sizes when the receiving end face is detected to have the foreign matters, the receiving coils are used for being matched with magnetic field areas after shielding, the driving module is used for driving the receiving coils to move to the range of the residual receivable magnetic field, the foreign matters are avoided, the wireless charging efficiency is guaranteed, the charging time can be shortened, and the user experience is improved.
Fig. 1 is a schematic diagram of a system configuration of a wireless charging receiving apparatus according to an embodiment of the present application, and fig. 2 is a schematic diagram of a physical structure of a wireless charging receiving apparatus according to an embodiment of the present application, and as shown in fig. 1 and fig. 2, the wireless charging receiving apparatus 100 includes a plurality of receiving coils 140 with different sizes, and further includes: a foreign object detection module 110, a driving module 130, and a control module 120.
The foreign object detection module 110 is configured to detect the foreign object shielding information on the receiving end surface of the wireless charging receiving device 100, and is configured to start the function of the receiving device of the embodiment of processing the shielding of the foreign object. The foreign object detection module 110 is not limited to detecting the presence and size of a foreign object by magnetic flux or light detection.
The control module 120 is configured to calculate a remaining effective chargeable area according to a detection result of the foreign object detection module 110, switch the receiving coil 140 with a corresponding size according to the remaining effective chargeable area, and control the driving module 130 to drive the receiving coil 140 to move to a range of the remaining receivable magnetic field, so as to avoid the foreign object.
Therefore, the wireless charging receiving device 100 of the present application can detect foreign objects existing on the receiving end face, can switch the receiving coils 140 of different sizes according to the remaining effective chargeable area, and can avoid the foreign objects by controlling the movement of the receiving coils 140, move to the position where the maximum magnetic flux can be received and fix, so as to receive electromagnetic signals to the maximum extent and achieve the maximum energy conversion efficiency.
In an embodiment of the present application, the control module 120 is specifically configured to select the receiver coil 140 that is maximally available in the remaining effective chargeable area according to the remaining effective chargeable area and the size of the plurality of receiver coils 140, so as to wirelessly charge the largest available receiver coil 140. The remaining effective chargeable area refers to a portion obtained by subtracting the foreign object shielding area from the total magnetic field area that can be received by the receiving end, and when the remaining effective chargeable area is used, the requirement that the receiving coil 140 is completely covered by the magnetic field needs to be met. Therefore, the position of the foreign matter significantly affects the size of the remaining effective chargeable area, when the foreign matter with the same size is positioned at the edge of the receiving end face, the remaining effective chargeable area is larger, and when the foreign matter with the same size is positioned at the middle of the receiving end face, the remaining effective chargeable area is smaller. Therefore, the position and the area of the foreign matter are detected, and the largest available receiving coil 140 is selected according to the remaining effective chargeable area, so that the charging efficiency is guaranteed.
In the present embodiment, the foreign object detection module 110 is specifically configured to detect magnetic flux at each receiving end face of the wireless charge receiving apparatus 100. For example, the foreign object detection module 110 may include: a hall flux sensor. The hall magnetic flux sensor is a magnetic field sensor manufactured according to the hall effect, and as shown in fig. 2, the present application detects magnetic flux at each of the receiving end surfaces by providing a plurality of hall magnetic flux sensors on the casing 101 of the device.
The control module 120 is specifically configured to determine a position and an area where the foreign object blocks the magnetic field by comparing magnetic fluxes at various positions of the receiving end face, and calculate to obtain a remaining effective chargeable area according to a total receivable magnetic field area.
In the present embodiment, the receiving coil 140 has a circular or square shape. When the receiving coil 140 is circular, the control module 120 determines the size of the largest receiving coil 140 through the largest circular area that the remaining effective chargeable area can accommodate; when the receiver coil 140 is square, the control module 120 may also select the size of the largest receiver coil 140 by determining the largest square area that the remaining effective chargeable area can accommodate by an angular rotation of the receiver coil 140.
In an embodiment of the present application, the driving module 130 includes a motor driving module and a motor module connected to each other, and the motor module can drive the receiving coil 140 to move and/or rotate in the receiving end surface, so as to enable the receiving coil 140 to avoid the foreign object in multiple directions and/or angles in the receiving end surface. If the receiving coil 140 is circular, only the driving module 130 for driving the receiving coil 140 to move is needed; if the receiving coil 140 is square, the driving module 130 for driving the receiving coil 140 to rotate may be further provided, so that when the remaining effective chargeable area is limited, the magnetic flux is maximally expanded, and the charging efficiency is ensured.
In one embodiment of the present application, an electric machine module, comprises: two stepping motors with different driving directions and a gear transmission mechanism. In the embodiment shown in fig. 2, the two stepping motors are an X-axis motor 131 and a Y-axis motor 132, respectively, and the X-axis motor 131 and the Y-axis motor 132 may drag the slot 133 to move through gear transmission, thereby dragging the receiving coil 140 to move. Alternatively, in other embodiments of the present application, the electric machine module may also include: the servo motor, for example, a small-sized steering gear, moves the position of the receiving coil 140 to avoid foreign objects.
Referring to fig. 2, the working principle of the wireless charging receiving device of the present application is as follows:
the foreign object detection module 110 is mounted to the housing 101 of the wireless charge receiving apparatus 100, and the circuit board 102, the driving module 130, the receiving coil 140 of different sizes, and the like are mounted below the receiving apparatus housing 101. The foreign object detection module 110 may detect magnetic fluxes received at various positions of the receiving device casing 101, feed back signals to a control module 120 (such as a microprocessor) of the circuit board 102, and calculate and compare magnetic flux signals by the control module 120 to obtain a foreign object blocking position and area; according to the remaining effective chargeable area, the adaptive maximum diameter receiving coil 140 is selected, and the calculated PWM (Pulse Width Modulation) waveform is output to the driving module 130, so as to drive the X-axis motor 131 and the Y-axis motor 132 to drive the selected receiving coil 140 to move, avoid the position area blocked by the foreign object, move to the position capable of receiving the maximum magnetic flux and fix, so as to receive the electromagnetic signal to the maximum extent, achieve the maximum energy conversion efficiency, and charge the lithium ion battery 103.
Fig. 3 is a schematic structural diagram of a wireless charge receiving apparatus system according to another embodiment of the present application, in this embodiment, the wireless charge receiving apparatus further includes: and the voltage stabilizing and boosting module 150 is connected with the receiving coil 140, boosts the induced electromotive force generated by the receiving coil 140 and supplies the boosted electromotive force to the battery for charging.
Further, as shown in fig. 3, the wireless charge receiving apparatus further includes: and the alarm module 160, the alarm module 160 is used for giving an alarm when the foreign object detection module 110 detects a foreign object. The alarm module 160 may alarm at a first time, and if someone is near the charger, the foreign matter may be removed.
The control module 120 is configured to switch the receiving coil 140 with the corresponding size after the alarm module 160 sends out the alarm for a preset time, and control the driving module 130 to drive the receiving coil 140 to move to the remaining receivable magnetic field range, so as to avoid the foreign object. Therefore, even if no one receives the alarm to process the foreign matters, the receiving device can realize the charging of the electronic equipment by switching and moving the receiving coil 140, and the embarrassment that the user cannot obtain the charging after connecting the charger is avoided.
The application also discloses an electronic device which is provided with the wireless charging receiving device. Therefore, when foreign matters exist on the receiving end face, the charging effect of all or part of power can be still kept, and the use experience of a user is improved. The electronic equipment can be various equipment capable of supplementing electric energy through wireless charging, such as a mobile phone, a bracelet, a watch and the like.
While the foregoing is directed to embodiments of the present invention, other modifications and variations of the present invention may be devised by those skilled in the art in light of the above teachings. It should be understood by those skilled in the art that the foregoing detailed description is for the purpose of better explaining the present invention, and the scope of the present invention should be determined by the scope of the appended claims.
Claims (10)
1. A wireless charging receiving device, characterized in that, this receiving device includes a plurality of receiving coils of different sizes, still includes: the device comprises a foreign matter detection module, a driving module and a control module;
the foreign matter detection module is used for detecting foreign matter shielding information of the receiving end face of the wireless charging receiving device;
the control module is used for calculating the residual effective chargeable area according to the detection result of the foreign matter detection module, switching the receiving coil with the corresponding size according to the residual effective chargeable area, and controlling the driving module to drive the receiving coil to move to the range of the residual receivable magnetic field so as to avoid the foreign matter.
2. The wireless charge receiving device according to claim 1, wherein the foreign object detection module is specifically configured to detect magnetic flux at each of the receiving end faces of the wireless charge receiving device;
the control module is specifically used for determining the position and the area of a foreign matter shielding magnetic field by comparing magnetic fluxes at all positions of the receiving end face, and calculating and obtaining the remaining effective chargeable area according to the area of all the receivable magnetic fields.
3. The wireless charging receiving device according to claim 1, wherein the control module is specifically configured to select a largest available receiving coil according to a remaining effective chargeable area and a size of the plurality of receiving coils, so as to perform wireless charging with the largest available receiving coil.
4. The wireless charge receiving device of claim 1, wherein the foreign object detection module comprises: a hall flux sensor.
5. The wireless charge receiving device of claim 1, wherein the receiving coil is circular or square in shape.
6. The wireless charging receiving device according to claim 1, wherein the driving module comprises a motor driving module and a motor module which are connected with each other, and the motor module can drive the receiving coil to move and/or rotate in the receiving end face.
7. The wireless charge receiving device of claim 6, wherein the motor module comprises: the stepping motors are arranged in two different driving directions, and the gear transmission mechanism is arranged on the stepping motor; alternatively, the motor module includes: a servo motor.
8. The wireless charge receiving device of claim 1, further comprising: and the voltage stabilizing and boosting module is connected with the receiving coil and used for boosting the induced electromotive force generated by the receiving coil and then providing the boosted induced electromotive force for charging a battery.
9. The wireless charge receiving device of claim 1, further comprising: the alarm module is used for giving an alarm when the foreign matter detection module detects the foreign matter;
and the control module is used for switching the receiving coil with the corresponding size after the alarm module sends out the alarm for preset time, and controlling the driving module to drive the receiving coil to move to the range of the residual receivable magnetic field so as to avoid the foreign matters.
10. An electronic device, characterized in that the electronic device is provided with a wireless charge receiving arrangement according to any of claims 1 to 9.
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| CN202011320851.6A CN112531917B (en) | 2020-11-23 | 2020-11-23 | Wireless charging receiving device and electronic equipment |
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| CN202011320851.6A CN112531917B (en) | 2020-11-23 | 2020-11-23 | Wireless charging receiving device and electronic equipment |
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| CN112531917A CN112531917A (en) | 2021-03-19 |
| CN112531917B true CN112531917B (en) | 2022-12-09 |
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| CN113858983A (en) * | 2021-09-15 | 2021-12-31 | 合肥有感科技有限责任公司 | Wireless charging system |
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Effective date of registration: 20221220 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261031 east of Dongming Road, north of Yuqing East Street, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronics office building) Patentee before: GoerTek Optical Technology Co.,Ltd. |