CN106230049B - Wireless charging device and method - Google Patents
Wireless charging device and method Download PDFInfo
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Abstract
The invention relates to a wireless charging device and a method thereof. It includes: the coil driving circuit is used for driving the charging coil to work; the alignment detection circuit is used for detecting the charging parameter in the coil driving circuit, and when the charging parameter is matched with a preset reference, the alignment between the charging coil and the equipment to be charged is determined, and the charging at the current position is kept; when the charging parameter is not matched with a preset reference, triggering the rotation control circuit to start working; the rotation control circuit is used for controlling the rotation device to rotate after being triggered by the alignment detection circuit; and the rotating device is driven by the rotation control circuit to rotate and triggers the coil driving circuit to start working after the rotation is stopped. According to the specific embodiment of the invention, the position of the charging coil is automatically adjusted by detecting the charging parameter of the charging coil, so that the problem of inaccurate alignment between the wireless charging equipment and the equipment to be charged is solved, the charging efficiency is improved, the energy loss is reduced, and the charging time is shortened.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of charging, in particular to a wireless charging device and a wireless charging method.
[ background of the invention ]
With the continuous evolution and development of electronic technology, wireless charging devices are now popular in the market.
However, since the wireless charging technology is charging by induction between coils, connection between the charging apparatus and the apparatus to be charged by a wire is not required. Therefore, as for the existing wireless charging equipment, the phenomenon of misalignment is easy to occur during the use process of a user. And poor user experience can be caused by poor alignment, which can greatly reduce the charging efficiency.
Therefore, the slow charging speed becomes a great complaint point in the current wireless charging products.
[ summary of the invention ]
The invention aims to provide a wireless charging device and a method thereof, which can improve the alignment accuracy between electronic equipment and charging equipment in the charging process.
In order to solve the technical problems, the invention provides the following technical scheme:
in one aspect, the present invention provides a wireless charging device, including: the wireless transmitting component 30, the coil driving circuit 60, the alignment detection circuit 70, the rotation control circuit 80 and the rotating device 20 fixedly connected with the wireless transmitting component 30; the coil driving circuit 60 is configured to drive the wireless transmitting assembly 30 to charge the device to be charged 50; the alignment detection circuit 70 is configured to detect a charging parameter in the coil driving circuit 60, and when the charging parameter matches a preset reference, it is determined that the charging coil and the device to be charged 50 are aligned, and charging at the current position is maintained; when the charging parameter is not matched with the preset reference, the rotation control circuit 80 is triggered to start working; the rotation control circuit 80, after being triggered by the alignment detection circuit 70, is used for controlling the rotation of the rotating device 20; the rotating device 20 is used for rotating under the drive of the rotation control circuit 80; wherein, the rotation control circuit 80 or the rotating device 20 triggers the coil driving circuit 60 to start operation after the rotating device 20 stops rotating.
In some embodiments, wherein the wireless charging device further comprises: a quick charge identification circuit 80;
the fast charging identification circuit 80 is configured to determine whether the device to be charged 50 has a fast charging function, and if the device to be charged has the fast charging function, control the coil driving circuit 60 to perform charging with fast charging power, and if the device to be charged does not have the fast charging function, control the coil driving circuit 60 to perform charging with normal charging power.
In some embodiments, wherein the wireless charging device further comprises: a lower body cover 10 and an upper body cover 40 engaged with the upper body cover; the rotating device 20 is installed in the lower body cover 10.
In some embodiments, among others, the rotating device 20 comprises: a gear 21, a motor 22 and a transmission member 23; the motor 22 drives the gear 21 to rotate through the transmission piece 23; wherein the rotation control circuit 80 controls the operation of the motor 22; the transmission member 23 is fixedly connected to the wireless transmitting assembly 30.
In some embodiments, among others, the wireless transmission assembly 30 includes: a tray 31 and a charging coil 32 fixed to the tray 31; the tray 13 is fixedly connected with the rotating device 20, and the rotating device 20 drives the tray 13 to rotate; wherein the tray 31 is fixedly connected with the rotating device.
In some embodiments, the charging coil 32 comprises three charging coils arranged in an axial sequence.
In some embodiments, wherein the charging parameters include: the value of the charging current or the value of the charging voltage.
In some embodiments, the predetermined reference is a value range, or a specific value.
In some embodiments, wherein the rotating device 20 rotates only a predetermined angle at a time
In another aspect, the present invention provides a wireless charging method, including:
s101, starting a charging coil;
s102, detecting a charging parameter of a charging coil, and when the charging parameter is matched with a preset reference, determining that the charging coil is aligned with the device to be charged 50, and executing the step S103; when the charging parameter does not match the preset reference, executing step S104;
s103, keeping the current position to continue charging;
s104, rotating the charging coil by a preset angle, and performing step S101 again.
The method has the advantages that the charging parameters of the charging coil are detected, whether the charging coil is aligned with the equipment to be charged is determined by confirming whether the parameters are within the preset reference, if not, the charging coil is automatically rotated, the charging coil starts to work again after the rotation, and the charging parameters of the charging coil are detected again until the charging coil is aligned with the equipment to be charged. So, then can solve wireless battery charging outfit and wait the inaccurate problem of counterpointing between the battery charging outfit, very big improvement charge efficiency reduces energy loss, shortens charge time.
[ description of the drawings ]
Fig. 1 is a schematic circuit diagram of a wireless charging device according to a first embodiment of the invention;
fig. 2 is a schematic circuit diagram of a wireless charging device according to a third embodiment of the present invention;
fig. 3 is an exploded perspective view of a wireless charging device according to a third embodiment of the present invention;
fig. 4 is an assembled perspective view of a wireless charging device according to a third embodiment of the present invention when the alignment is not correct;
FIG. 5 is an exploded perspective view of FIG. 4;
fig. 6 is an assembled perspective view of a wireless charging device after adjustment according to a third embodiment of the present invention;
FIG. 7 is an exploded perspective view of FIG. 6;
fig. 8 is a flowchart of a wireless charging method according to a fourth embodiment of the present invention.
Reference numerals:
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a schematic circuit diagram of a wireless charging apparatus according to a first embodiment of the present invention is used for charging an electronic device. The first embodiment of the wireless charging device comprises: the wireless transmitter module 30, the coil driving circuit 60, the alignment detection circuit 70, the rotation control circuit 80, and the rotating device 20 fixedly connected to the wireless transmitter module 30.
The coil driving circuit 60 is configured to drive a charging coil to charge the device to be charged 50;
the alignment detection circuit 70 is used to detect the charging parameters in the coil driving circuit 60, such as: when the charging parameter matches a preset reference, it is determined that the charging coil and the device to be charged 50 are aligned, and the charging at the current position is maintained; when the charging parameter is not matched with the preset reference, the rotation control circuit 80 is triggered to start working; the preset reference can be a numerical interval, or a specific numerical value; specifically, for a device to be charged, which only has a common charging function, that is, a 5W electronic device, the preset reference of the charging current may be set to 0.9A, and the preset reference of the charging power supply may be set to 5V; for a mobile phone with a quick charging function, namely 10W electronic equipment, a preset reference of a charging current can be set to be 1A, and a preset reference of a charging power supply can be set to be 9V;
the rotation control circuit 80 is used for controlling the rotation device 20 to rotate after being triggered by the alignment detection circuit 70; preferably, the rotating device 20 is only driven to rotate a preset angle at a time, and preferably the preset angle is smaller, for example: 30 degrees, so that the position adjustment of the charging coil can be more accurate;
the rotating device 20 is used for rotating under the drive of the rotation control circuit 80; wherein, the rotation control circuit 80 or the rotating device 20 triggers the coil driving circuit 60 to start operation after the rotating device 20 stops rotating.
When the charging device works, a user places a device to be charged on the charging device, the coil driving circuit 60 drives the charging coil to work, and the device to be charged 50 is charged; the alignment detection circuit 70 detects the charging parameter in the coil driving circuit 60, and when the charging parameter matches a preset reference, it is determined that the charging coil and the device to be charged 50 are aligned, and the charging device is charged while keeping the current state; when the charging parameter is not matched with the preset reference, the rotation control circuit 80 is triggered to start working; after the rotation control circuit 80 is triggered, the rotation device 20 is controlled to rotate; the rotating device 20 is driven by the rotation control circuit 80 to rotate a certain angle, for example, 30 degrees, and after the rotation is stopped, the coil driving circuit 60 is triggered to start operating again. The alignment detection circuit 70 detects the charging parameter in the coil driving circuit 60 again, and if the charging parameter is not matched with the preset reference, the rotation control circuit 80 is continuously triggered to work, and the rotation device 20 drives the charging coil to rotate until the charging parameter is matched with the preset reference.
According to the first embodiment of the present invention, the alignment detection circuit 70 is used to detect the charging parameter of the charging coil, and determine whether the charging coil is aligned with the device to be charged by determining whether the parameter is within a preset reference, if not, the rotation control circuit 80 is triggered, the rotation control circuit 80 drives the rotation device 20 to rotate the charging coil by a certain angle, after the rotation, the charging coil starts to work again, and the alignment detection circuit 70 detects the charging parameter of the charging coil again until the charging coil is aligned with the device to be charged. Therefore, when a user places the device to be charged on the charging device at will, the charging device can automatically adjust the position of the internal charging coil to align with the charging device, and the highest charging efficiency is achieved. From this, can solve wireless battery charging outfit and wait the inaccurate problem of counterpointing between the battery charging outfit, very big improvement charge efficiency reduces energy loss, shortens charge time.
As shown in fig. 2, a schematic circuit diagram of a wireless charging apparatus according to a second embodiment of the present invention is used for charging an electronic device. Compared with the first embodiment, the difference between the second embodiment and the first embodiment is that the first embodiment further includes: a rapid charge identification circuit 80.
The fast charging identification circuit 80 is configured to determine whether an adapter that provides power to the wireless charging device or the device to be charged 50 has a fast charging function, that is, whether the adapter meets a QC3.0(Quick Charge standard introduced by american high-speed corporation) or a QC2.0 standard, control the coil driving circuit 60 to Charge the device to be charged 50 with fast charging power if the adapter has the fast charging function, and control the coil driving circuit 60 to Charge the device to be charged 50 with ordinary charging power if the adapter does not have the fast charging function.
Fig. 3 is an exploded perspective view of a wireless charging device according to a third embodiment of the present invention. The third embodiment includes: the wireless transmission device comprises a lower body cover 10, a rotating device 20, a wireless transmission assembly 30 and an upper body cover 40. The rotating device 20 is installed in the lower body cover 10 and is fixedly connected to the wireless transmitting component 30, and the upper body cover 40 is assembled with the lower body cover 10 in a clamping manner.
Wherein, this rotating device 20 includes: a gear 21, a motor 22, and a transmission member 23; the motor 22 drives the gear 21 to rotate through the transmission member 23. Specifically, the gear 21 is provided with a connecting member 211 at an axial position, and the edge of the gear 21 has a plurality of teeth (not shown) which are engaged with teeth (not shown) of the driving member 23. When the transmission member 23 is moved by the motor, the gear 21 starts to rotate.
The wireless transmission assembly 30 includes: a tray 31 and a charging coil 32 fixed on the tray 31. Wherein, the tray 13 is fixedly connected with the rotating device 20, and the rotating device 20 drives the tray 13 to rotate. Specifically, the tray 31 is fixedly connected to the gear 21 through the connecting member 211. When the gear 21 rotates, the tray 31 will drive the charging coil 32 to rotate together.
Preferably, the charging coil 32 includes three charging coils arranged in an axial sequence, and as shown in fig. 3, there may be a partial overlap between the coils. The three charging coils arranged in sequence are more favorable for the alignment between the charging coils and the device to be charged 50.
As shown in fig. 4 and 5, the device 50 to be charged, i.e. the mobile phone, is placed on the wireless charging device at will, the position of the wireless receiving area 51 of the mobile phone does not coincide with the position of the charging coil 32 in the wireless transmitting assembly 30 at all, at this time, the alignment detection circuit 70 detects the charging parameter of the charging coil, and determines that the charging coil is not aligned with the device to be charged, the rotation control circuit 80 is triggered, the rotation control circuit 80 drives the rotation device 20 to drive the charging coil to rotate by a certain angle, after the rotation, the charging coil starts to work again, and the alignment detection circuit 70 detects the charging parameter of the charging coil again.
As shown in fig. 6 and 7, until after a total rotation of 90 degrees, the charging coil is completely aligned with the device to be charged, i.e. the wireless receiving area 51 of the handset completely coincides with the charging coil of the wireless transmitting assembly 30. The charging efficiency is highest, the energy loss is least, and the charging time is shortest.
As shown in fig. 8, a flowchart of a wireless charging method according to a fourth embodiment of the present invention is shown. The method comprises the following steps:
s101, starting a charging coil;
s102, detecting a charging parameter of a charging coil, and when the charging parameter is matched with a preset reference, determining that the charging coil is aligned with the device to be charged 50, and executing the step S103; when the charging parameter does not match the preset reference, executing step S104;
s103, keeping the current state and continuing charging;
s104, the charging coil is rotated by a preset angle, for example, 30 degrees, and step S101 is performed again.
More details in the fourth embodiment can be referred to the first embodiment, and repeated details are not repeated.
In a fourth embodiment of the present invention, a charging parameter of the charging coil is detected, and when the charging parameter is not matched with a preset reference, the position of the charging coil is automatically adjusted until the charging parameter is matched with the preset reference, that is, the charging coil is aligned with the device to be charged. In this case, the charging efficiency of the charging device is the highest, the energy consumption is the lowest, and the charging time is the shortest.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A wireless charging device, comprising: the device comprises a wireless transmitting assembly (30), a coil driving circuit (60), an alignment detection circuit (70), a rotation control circuit (80) and a rotating device (20) fixedly connected with the wireless transmitting assembly (30);
the coil driving circuit (60) is used for driving the wireless transmitting assembly (30) to charge the equipment (50) to be charged;
the alignment detection circuit (70) is used for detecting a charging parameter in the coil driving circuit (60), and when the charging parameter is matched with a preset reference, the alignment between the charging coil of the wireless transmitting assembly (30) and the device to be charged (50) is determined, and the charging at the current position is kept; when the charging parameter is not matched with a preset reference, triggering the rotation control circuit (80) to start working; the charging parameter comprises a value of a charging current or a value of a charging voltage;
the rotation control circuit (80) is used for controlling the rotation device (20) to rotate after being triggered by the alignment detection circuit (70), and the rotation device (20) only rotates for a preset angle each time;
the rotating device (20) is used for rotating under the drive of the rotating control circuit (80); wherein, the rotation control circuit (80) or the rotating device (20) triggers the coil driving circuit (60) to start working after the rotating device (20) stops rotating.
2. The wireless charging device of claim 1, further comprising: a quick charge identification circuit (80);
the quick charging identification circuit (80) is used for determining whether the equipment (50) to be charged has a quick charging function, if so, the coil driving circuit (60) is controlled to be charged with quick charging power, and if not, the coil driving circuit (60) is controlled to be charged with ordinary charging power.
3. The wireless charging device of claim 1, further comprising: a lower body cover (10) and an upper body cover (40) which is clamped and assembled with the lower body cover; the rotating device (20) is arranged in the lower cover (10) of the body.
4. The wireless charging device of claim 1, wherein the rotating means (20) comprises: a gear (21), a motor (22) and a transmission member (23); the motor (22) drives the gear (21) to rotate through the transmission piece (23); wherein the rotation control circuit (80) controls the motor (22) to work; the transmission piece (23) is fixedly connected with the wireless transmitting component (30).
5. The wireless charging device of claim 1, wherein the wireless transmitting assembly (30) comprises: a tray (31) and a charging coil (32) fixed on the tray (31); the tray (13) is fixedly connected with the rotating device (20), and the rotating device (20) drives the tray (13) to rotate; wherein the tray (31) is fixedly connected with the rotating device.
6. The wireless charging device of claim 5, wherein the charging coil (32) comprises three charging coils arranged in an axial sequence.
7. The wireless charging device of claim 1, wherein the predetermined reference is a value range or a specific value.
8. A wireless charging method, the method comprising:
s101, starting a charging coil;
s102, detecting a charging parameter of a charging coil, and when the charging parameter is matched with a preset reference, determining that the charging coil is aligned with a device to be charged (50), and executing the step S103; when the charging parameter does not match the preset reference, executing step S104; wherein the charging parameter comprises a value of a charging current or a value of a charging voltage;
s103, keeping the current position to continue charging;
s104, rotating the charging coil by a preset angle, and performing step S101 again.
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| EP3462564A4 (en) * | 2017-04-07 | 2019-05-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless charging system, apparatus and method, and device to be charged |
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| CN107887948B (en) * | 2017-11-27 | 2020-02-14 | 江苏傲能科技有限公司 | Charging system and method based on wireless network |
| CN108494116A (en) * | 2018-04-28 | 2018-09-04 | 深圳市网科技有限公司 | A kind of wireless charger coil calibrates platform and its working method automatically |
| CN108390468A (en) * | 2018-05-02 | 2018-08-10 | 深圳市网科技有限公司 | A kind of artificial intelligence wireless charger automatically controlling charging |
| WO2020017938A1 (en) * | 2018-07-20 | 2020-01-23 | 주식회사 아모센스 | Drone station |
| CN109462286A (en) * | 2018-09-30 | 2019-03-12 | 漳州蒙发利创新科技有限公司 | A kind of wireless charger automatically correcting charge position |
| CN109719728B (en) * | 2019-01-23 | 2021-07-23 | 深圳乐动机器人有限公司 | Method and device for adjusting charging pose of robot |
| CN110061574A (en) * | 2019-04-28 | 2019-07-26 | 南京睿赫电子有限公司 | Wireless charging device and charging method |
| CN110165726B (en) * | 2019-04-28 | 2022-04-15 | 南京睿赫电子有限公司 | Wireless charging device and charging method |
| CN110048519A (en) * | 2019-04-29 | 2019-07-23 | 电子科技大学成都学院 | A kind of design promoting wireless charger Free Region |
| CN110336342A (en) * | 2019-06-05 | 2019-10-15 | 南京睿赫电子有限公司 | Wireless charging device and charging method |
| CN110365079A (en) * | 2019-07-18 | 2019-10-22 | 歌尔股份有限公司 | A kind of wireless charger and electronic product module |
| CN112590573B (en) * | 2020-12-07 | 2022-07-12 | 哈尔滨工业大学（深圳） | Control method of circuit topology structure of excitation transmitting end coil in triangulation location method |
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