CN111756079A

CN111756079A - Wireless charging device and wireless charging method

Info

Publication number: CN111756079A
Application number: CN201910239291.2A
Authority: CN
Inventors: 左柏林; 李建法; 林涛; 王劲
Original assignee: Suzhou Lanpei Wireless Communication Technology Co ltd
Current assignee: Suzhou Lanpei Wireless Communication Technology Co ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-10-09

Abstract

The invention provides a wireless charging device and a wireless charging method, wherein the wireless charging device at least comprises a base, a first driving assembly, a second driving assembly and a charging coil assembly, wherein: the first driving assembly is arranged on the base and drives the charging coil assembly to move along a first direction; the second driving assembly is arranged on the base and drives the charging coil assembly to move along the second direction, and an included angle is formed between the first direction and the second direction so as to move the charging coil assembly to a preset position based on the first driving assembly and the second driving assembly. The invention realizes the position freedom of the charging coil assembly of the wireless charging device, is suitable for different portable electronic equipment, has strong universality, can freely move the transmitting end position of the wireless charging equipment within a certain range, can perfectly solve the problem of dislocation of the transmitting end coil and the receiving end coil, can improve the area of a chargeable area and improve the charging efficiency, and can further shorten the charging time through the design of the invention.

Description

Wireless charging device and wireless charging method

Technical Field

The invention belongs to the technical field of wireless charging, and particularly relates to a wireless charging device and a wireless charging method.

Background

With the development of the technology, the wireless transmission of electric energy is realized through electromagnetic induction in the prior art of wireless charging of the electronic mobile device, and the position of the coil of the transmitting terminal and the receiving terminal greatly affects the coupling of the coil based on the wireless charging of the electromagnetic induction, so that the charging efficiency is greatly affected, and the position requirement of the receiving terminal for the wireless charging is high. Therefore, the charging efficiency is greatly affected by the misalignment between the transmitting-end coil and the receiving-end coil, whereas the wireless charging coil in the existing wireless charging device is generally fixedly arranged in the wireless charging device and cannot move, a user places a device to be charged (such as a mobile phone) on the wireless charging device for wireless charging, the relative position of the wireless charging coil is fixed, the device with the receiving coil at different positions cannot be charged, and the problems of small charging area, easy deviation of the placement position and the like exist.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a wireless charging device and a wireless charging method, which are used to solve the problems that the wireless charging device in the prior art is difficult to charge devices to be charged at different positions, the chargeable area is small, the placement positions of the devices to be charged are easy to deviate, and the charging efficiency is low.

To achieve the above and other related objects, the present invention provides a wireless charging device, which at least includes a base, a first driving assembly, a second driving assembly, and a charging coil assembly, wherein: the first driving assembly is arranged on the base and drives the charging coil assembly to move along a first direction; the second driving assembly is arranged on the base and drives the charging coil assembly to move along a second direction, and an included angle is formed between the first direction and the second direction so as to move the charging coil assembly to a preset position based on the first driving assembly and the second driving assembly.

As an alternative of the present invention, the second driving assembly is disposed on the first driving assembly, and the second driving assembly is movable along the first driving assembly, wherein the first driving assembly drives the charging coil assembly to move along the first direction based on the second driving assembly.

As an alternative of the present invention, the first driving assembly includes a first guide rail, the second driving assembly includes a second guide rail, and one end of the second guide rail is disposed on the first guide rail, the second guide rail is movable along the first guide rail, the charging coil assembly is disposed on the second guide rail, and the charging coil assembly is movable along the second guide rail, wherein a direction in which the second guide rail moves along the first guide rail is the same as the first direction, and a direction in which the charging coil assembly moves along the second guide rail is the same as the second direction.

As an alternative of the present invention, the first driving assembly further includes a third rail disposed in parallel with the first rail, wherein the other end of the second rail is disposed on the third rail, the second rail is movable along the third rail, and a direction in which the second rail moves along the third rail coincides with the first direction.

As an alternative of the present invention, the wireless charging apparatus further includes a transmission device disposed on the base, wherein the transmission device drives the second driving assembly to move along the first driving assembly.

As an alternative of the present invention, the conveying apparatus includes a first direction driving motor disposed on the base and a transmission belt connected to the first direction driving motor, wherein the first direction driving motor drives the second driving assembly to move along the first driving assembly through the transmission belt.

As an alternative of the present invention, the charging coil assembly includes a carrier and a charging coil disposed on the carrier, and the wireless charging device further includes a second direction driving motor disposed on the base, wherein the second direction driving motor drives the charging coil assembly to move along the second driving assembly based on the carrier.

As an alternative of the present invention, the second direction driving motor is disposed on the carrier, the charging coil is integrated on a PCBA board and disposed on the carrier through the PCBA board, and the PCBA board is disposed above the second direction driving motor.

As an alternative of the present invention, the wireless charging device further includes a cover, the cover is disposed on the base, an accommodating space is formed between the cover and the base, and the first driving assembly, the second driving assembly, and the charging coil assembly are disposed in the accommodating space.

As an alternative of the present invention, the wireless charging device further includes a position detection component, where the position detection component is disposed on the base and is used for detecting position information of the device to be charged, which is placed on the wireless charging device.

As an alternative of the present invention, the wireless charging device further includes a control driving assembly, where the control driving assembly is disposed on the base and connected to the position detecting assembly, and is configured to receive the position information and control the first driving assembly and the second driving assembly to drive the charging coil assembly to move based on the position information, so that the charging coil assembly is aligned with the receiving coil of the device to be charged.

As an alternative of the present invention, the wireless charging device further includes a charging determination component and an equipment placement determination component, which are disposed on the base, wherein the charging determination component is configured to detect whether the charging of the to-be-charged equipment is completed, and the equipment placement determination component is connected to the charging determination component and configured to detect whether there is another to-be-charged equipment placed on the wireless charging device when the charging determination component determines that the charging of the to-be-charged equipment is completed.

The invention also provides a wireless charging method, which comprises the following steps:

providing a wireless charging device according to any one of the above aspects;

providing a device to be charged, and placing the device to be charged on the wireless charging device;

controlling movement of the charging coil assembly based on the first drive assembly and the second drive assembly to align the charging coil assembly with a receiving coil of the device to be charged; and

and charging the equipment to be charged based on the wireless charging device.

As an alternative of the present invention, the wireless charging method further includes the steps of: after the device to be charged is arranged on the wireless charging device, detecting the position information of the device to be charged arranged on the wireless charging device, and controlling the movement condition of the charging coil assembly based on the position information so as to align the charging coil assembly with the receiving coil of the device to be charged.

As an alternative of the present invention, the wireless charging method further includes the steps of: after the wireless charging device starts to charge the equipment to be charged, detecting whether the equipment to be charged is charged completely, and if the charging is not finished, continuing to charge; if the charging is finished, continuously detecting whether other equipment to be charged is placed, if so, repeating the steps of moving, aligning and charging the charging coil assembly, and if not, controlling the wireless charging device to stand by.

As an alternative of the present invention, the manner of moving the charging coil assembly is selected from at least one of driving the charging coil assembly to move in the first direction based on the first driving assembly and driving the charging coil assembly to move in the second direction based on the second driving assembly, and when the second driving assembly is disposed on the first driving assembly, the first driving assembly drives the charging coil assembly to move in the first direction based on the second driving assembly.

As an alternative of the present invention, the wireless charging method further includes the steps of: after the charging of the device to be charged is finished, the charging coil assembly is controlled to return to the initial position based on the first driving assembly and the second driving assembly.

As described above, the wireless charging device and the wireless charging method of the present invention achieve the problem of the degree of freedom of the position of the charging coil assembly of the wireless charging device, are applicable to different portable electronic devices, have strong versatility, and the position of the transmitting end of the wireless charging device can be freely moved within a certain range, thereby perfectly solving the problem of the dislocation between the transmitting end coil and the receiving end coil, increasing the area of the chargeable area, and increasing the charging efficiency.

Drawings

Fig. 1 is a perspective view of a wireless charging device according to the present invention.

Fig. 2 is a diagram illustrating internal components of the wireless charging device according to the present invention.

Fig. 3 is a perspective view illustrating internal components of the wireless charging device according to the present invention.

Fig. 4 is a schematic flow chart illustrating a wireless charging method according to the present invention.

Fig. 5 is a system diagram illustrating a process of controlling an operation of a wireless charging device according to an example of the present invention.

Fig. 6 is a schematic diagram illustrating an operation flow of a wireless charging device according to an example of the present invention.

Description of the element reference numerals

100 base

101 charging coil assembly

101a charging coil

101b carrier

102 first guide rail

103 second guide rail

104 third guide rail

105 first direction driving motor

106 driving belt

107 chargeable area

108 second direction driving motor

200 cover

201 reset key

202 indicating lamp

203 area for placing devices to be charged

300 position detection array

301 position detection processing chip

302 micro control unit

303 wireless charging chip

304 drive unit

305 coil resonant circuit

306 motor control chip

307 motor

401 Placement of devices to be charged

402 position detection component detects position information

403 MCU calculates mobile information

404 start wireless charging chip

405 motor control chip work

406 motor moves the charging coil assembly to a corresponding position

407 start wireless charging

408 charging is complete

409 continuously charging

410 whether a device to be charged is placed

411 the wireless charging device is in standby mode

S1-S4

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Please refer to fig. 1 to 6. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

As shown in fig. 1-3, the present invention provides a wireless charging device, which at least includes a base 100, a first driving assembly, a second driving assembly and a charging coil assembly 101, wherein: the first driving assembly is disposed on the base 100 and drives the charging coil assembly 101 to move along a first direction; the second driving assembly is disposed on the base 100, and drives the charging coil assembly 101 to move along a second direction, and an included angle is formed between the first direction and the second direction, so that the charging coil assembly 101 is moved to a preset position based on the first driving assembly and the second driving assembly.

Specifically, in the wireless charging device of the present invention, the charging coil assembly 101 can move, for example, can move in a plane parallel to the surface of the base 100, wherein the first driving assembly drives the charging coil assembly 101 to move in a first direction, which can be any direction in the plane in which the charging coil assembly 101 moves, and the second driving assembly drives the charging coil assembly 101 to move in a second direction, which can be any direction in the plane in which the charging coil assembly 101 moves, and further, an included angle is formed between the first direction and the second direction, so that the charging coil assembly 101 can be moved to move the charging coil assembly 101 to a desired position by the first driving assembly and the second driving assembly, that is, the preset position, here, the movement in the first direction and the second direction may be a movement back and forth in the first direction and a movement back and forth in the second direction, in an example, the first direction and the second direction are perpendicular to each other, for example, for a certain preset position, the charging coil assembly 101 may be moved to a first position by the first driving assembly, and then the charging coil assembly 101 may be moved to the preset position by the second driving assembly, of course, the second driving assembly may move the charging coil assembly 101 first and then the charging coil assembly 101 is moved by the first driving assembly, and similarly, the first driving assembly and the second driving assembly may simultaneously drive the charging coil assembly 101 to move. In an example, if the initial position of the charging coil assembly 101 coincides with the preset position, the first driving assembly and the second driving assembly both drive the charging coil assembly 101 to move by zero distance, that is, the charging coil assembly 101 does not move.

Through the scheme, the charging coil assembly 101 is movable, namely the transmitting end position of the wireless charging device can move freely within a certain range, the problem of dislocation of the transmitting end coil and the receiving end coil can be perfectly solved, the area of the chargeable area 107 can be increased, the charging efficiency is improved, the charging coil assembly is suitable for different portable electronic devices, and the universality is high.

As an example, the second driving assembly is disposed on the first driving assembly, and the second driving assembly is movable along the first driving assembly, wherein the first driving assembly drives the charging coil assembly 101 to move along the first direction based on the second driving assembly.

Specifically, in an example, the second driving assembly is further disposed on the first driving assembly, the second driving assembly is movable on the first driving assembly, for example, in a sliding manner, and then the second driving assembly drives the charging coil assembly 101 to move along the first direction, in an optional example, the direction of movement of the second driving assembly along the first driving assembly is the same as the first direction, the charging coil assembly 101 is disposed on the second driving assembly, and when the second driving assembly moves on the first driving assembly, the charging coil assembly 101 is moved along the first direction.

In addition, referring to fig. 2, in an example, the second driving assembly moves on the first driving assembly, and the charging coil assembly 101 moves on the second driving assembly, so that the charging coil can move to any position of a zone defined by the first driving assembly and the second driving assembly, that is, the chargeable area 107. According to the invention, the chargeable area 107 can be defined by the first driving assembly and the second driving assembly, namely, the area to which the charging coil assembly 101 can move, so that equipment to be charged can be charged in the area, and the effective charging area is greatly increased compared with that of a traditional wireless charging device. In one example, the chargeable area 107 may be a square area with rounded corners, as shown in fig. 2, wherein the radius R at the rounded corners is 21mm and the sides are 150 mm.

As an example, the first driving assembly includes a first guide rail 102, the second driving assembly includes a second guide rail 103, one end of the second guide rail 103 is disposed on the first guide rail 102, the second guide rail 103 is movable along the first guide rail 102, wherein the charging coil assembly 101 is disposed on the second guide rail 103, and the charging coil assembly 101 is movable along the second guide rail 103, in an example, a direction in which the second guide rail 103 moves along the first guide rail 102 is the same as the first direction, and a direction in which the charging coil assembly 101 moves along the second guide rail 103 is the same as the second direction.

Specifically, referring to fig. 2 and 3, the first driving assembly includes a first guide rail 102, the second driving assembly includes a second guide rail 103, the first guide rail 102 drives the charging coil assembly 101 to move along a first direction, the second guide rail 103 drives the charging coil assembly 101 to move along a second direction, so as to move the charging coil assembly 101 to a preset position based on the first guide rail 102 and the second guide rail 103, in an example, one end of the second guide rail 103 is sleeved on the first guide rail 102, so that the second guide rail 103 can move along the first guide rail 102, such as slide, so that the second driving assembly can move along the first driving assembly, in another optional example, the charging coil assembly 101 is disposed on the second guide rail 103, on the one hand, the second guide rail 103 can move the charging coil assembly 101 along the second direction, as in one example, the charging coil assembly 101 can move along the second guide rail 103, and the direction of the movement coincides with the second direction; on the other hand, the second guide rail 103 moves along the first guide rail 102, and then the second guide rail 103 drives the charging coil assembly 101 to move along the first guide rail 102, optionally, the direction of the second guide rail 103 moving along the first guide rail 102 is the same as the first direction.

Illustratively, the first driving assembly further comprises a third guide rail 104, the third guide rail 104 is arranged in parallel with the first guide rail 102, wherein the other end of the second guide rail 103 is arranged on the third guide rail 104, and the second guide rail 103 is movable along the third guide rail 104, in one example, the direction of movement of the second guide rail 103 along the third guide rail 104 is in accordance with the first direction.

Specifically, referring to fig. 2, the first drive assembly further includes a third rail 104, wherein, the first guide rail 102 and the third guide rail 104 are disposed on the base 100 in parallel and spaced apart, and further, the two ends of the second guide rail 103 are respectively arranged on the first guide rail 102 and the third guide rail 104, and both ends can move relative to the corresponding guide rails, wherein the distance between the first guide rail 102 and the third guide rail 104 is consistent with the length of the second guide rail 103, and the second guide rail 103 moves along the first guide rail 102 and the third guide rail 104 at the same time, the extending direction of the charging coil assembly 101 along the first guide rail 102 and the third guide rail 104 is realized, i.e., the first direction, and movement of the charging coil assembly 101 in the extending direction of the second guide rail 103, i.e., the second direction.

As an example, the wireless charging apparatus further includes a transmission device disposed on the base 100, wherein the transmission device drives the second driving assembly to move along the first driving assembly.

As an example, the conveying device includes a first direction driving motor 105 disposed on the base 100 and a transmission belt 106 connected to the first direction driving motor 105, wherein the first direction driving motor 105 drives the second driving component to move along the first driving component through the transmission belt 106, and the direction of movement of the second driving component along the first driving component is the same as the first direction.

In particular, in one example, the second driving component can be realized by the transmission device when moving along the first driving component, namely the transmission device drives and controls the second driving component to move on the first driving component, in an alternative example, the transfer device includes a first direction driving motor 105 and a driving belt 106, wherein, the first direction driving motor 105 drives the transmission belt 106 to drive the second driving component to move, in one example, the first drive assembly includes a first rail 102 and a third rail 104, the second driving assembly comprises a second guide rail 103, two ends of the second guide rail 103 are respectively sleeved on the first guide rail 102 and the third guide rail 104, so that the driving belt 106 moves the second guide rail 103 by the operation of the first direction driving motor 105.

As an example, the charging coil assembly 101 includes a carrier 101b and a charging coil 101a disposed on the carrier 101b, the wireless charging device further includes a second direction driving motor 108 disposed on the base 100, wherein the second direction driving motor 108 drives the charging coil assembly 101 to move along the second driving assembly based on the carrier 101b, and the direction of movement of the charging coil assembly 101 along the second driving assembly is the same as the second direction.

By way of example, the second direction driving motor 108 is disposed on the carrier 101b, the charging coil 101a is integrated on a PCBA board and disposed on the carrier 101b through the PCBA board, and the PCBA board is disposed above the second direction driving motor 108.

Specifically, in an example, the charging coil assembly 101 is composed of a carrier 101b and a charging coil 101a disposed on the carrier 101b, where the carrier 101b may be a plate made of an aluminum alloy material, such as a circular carrier 101b, and the charging coil is a transmitting coil that can be coupled with a receiving coil of a device to be charged, so as to implement wireless charging, in an example, the charging coil is disposed on the second driving assembly through the carrier 101b, and when the second driving assembly includes a second guide rail 103, the carrier 101b is disposed on the second guide rail 103. In an example, the charging coil 101a may be integrated on a PCB' a and further disposed on the carrier 101b, and in addition, the second direction driving motor 108 drives the charging coil assembly 101 to move along the second direction, in an example, the charging coil assembly 101 is disposed on the second driving assembly, such as on the second guide rail 103, the second direction driving motor 108 drives the charging coil assembly 101 to move along the second driving assembly, such as the second guide rail 103, in an optional example, the second direction driving motor 108 is disposed on the carrier 101b and further drives the charging coil assembly 101 to move on the second guide rail 103, in an example, the second guide rail 103 may be a slide rail, and the movement on the second guide rail 103 may be realized by a gear and spur rack engagement transmission manner, effecting movement of the charging coil assembly 101 on the second guide rail 103, in one example, the second direction drive motor 108 is disposed on the carrier 101b, under the action of the second direction driving motor 108, the carrier 101b, the charging coil 101a and the second direction driving motor 108 all move together on the second guide rail 103, in a further alternative example, a spur rack is provided on the second guide rail 103, the second direction driving motor 108 is provided at both ends of a gear engaged with the spur rack, and the second direction driving motor 108 is provided on the upper surface of the carrier, the second guide rail 103 is provided on the carrier 101b and under the gear, and further, the charging coil 101a is arranged above the second direction driving motor 108 and on the carrier 101b, so that the second direction driving motor 108 drives the charging coil 101a to move.

As an example, the wireless charging device further includes a cover 200, the cover 200 is disposed on the base 100, an accommodating space is formed between the cover 200 and the base 100, and the first driving assembly, the second driving assembly and the charging coil assembly 101 are disposed in the accommodating space.

Specifically, in an example, the wireless charging apparatus further includes a cover 200, as shown in fig. 1, wherein the cover 200 may be made of PC material, in addition, a device to be charged placing area 203 is further disposed on the cover 200, the device to be charged placing area 203 is disposed corresponding to the chargeable area 107 where the charging coil assembly 101 can move, when the device to be charged is placed in the area, wireless charging can be achieved, so as to improve charging efficiency, in addition, a reset key 201 may be further disposed on the cover 200, so as to be connected with a control assembly of the accommodating space, and the like, when the button is clicked, the charging coil assembly 101 is controlled to return to an initial position for resetting, in addition, an indicator light 202 may be further disposed on the cover 200, for example, the indicator light may be connected with the control assembly of the accommodating space, and the indication is performed when the charging of the device to be charged is completed, of course, it will be understood by those skilled in the art that other indications of procedures may also be used.

As an example, the wireless charging apparatus further includes a position detecting component, which is disposed on the base 100 and is used for detecting position information of the device to be charged placed on the wireless charging apparatus.

Specifically, in an example, the base 100 further includes a detection component, the detection component may be directly disposed on the base 100, or disposed on the base 100 through other devices, the detection component may be configured to detect position information of the device to be charged after the device to be charged is placed on the wireless charging apparatus, and may be a position of a coil received by the device to be charged, in an example, as shown in fig. 5, the detection component may include a position detection array 300, for example, the position detection array 300 may be configured by a plurality of position detection sensors, in an example, the detection component and a related position sensing part are defined on a large PCB' a, the coil is searched by moving and is fitted in a suitable position, after the device to be charged is placed on a charging platform of the wireless charging apparatus, as in the device to be charged placement area 203 of the cover 200, the position detection array 300 can detect the position of the receiving coil of the device to be charged and obtain the position information thereof, in a further example, the position detection assembly further includes a position detection processing chip 301, the position detection processing chip 301 is connected to the position detection array 300, can receive the position information obtained by the position detection array 300 and transmit the position information to other control assemblies to control the position of the charging coil assembly 101 based on the position information, in addition, the position detection processing chip 301 can process the received position information obtained by the position detection array 300, such as processing the information into a form that can be received by a subsequent control assembly, so as to transmit the processed information to the subsequent control assembly, in an example, the MCU and the position detection chip jointly determine the RX (Receive X, "X" represents cross, i.e. wireless charging receiving end) position and calculate the moving amount of the first driving component and the second driving component, the MCU drives the motor control chip to drive the motor to the target position, and the MCU drives the wireless charging chip to drive the charging module to start working.

As an example, the wireless charging device further includes a control driving assembly, which is disposed on the base 100 and connected to the position detecting assembly, and configured to receive the position information, control the first driving assembly and the second driving assembly to drive the charging coil assembly 101 to move based on the position information, so as to align the charging coil assembly 101 with a receiving coil of the device to be charged, in an example, the control driving assembly receives the position information and processes the position information to obtain movement information, and control the first driving assembly and the second driving assembly to drive the charging coil assembly 101 to move based on the movement information, so as to align the charging coil assembly 101 with the receiving coil of the device to be charged.

Specifically, in an example, the wireless charging device further includes a control driving assembly, and the control driving assembly may be directly disposed on the base 100, or may be disposed on the base 100 through another structure, where the control driving assembly may receive the position information obtained by the detecting assembly, or receive information obtained by processing position information by the position detection processing chip 301, and after receiving the information, control movement of the first driving assembly and the second driving assembly based on the information, so as to move the charging coil assembly 101 to a location corresponding to the position of the device to be charged for charging, where the control driving assembly receives the information, such as the position information, and then may process the information, and convert the information into movement information, such as convert the position information into the movement information, in one example, the location information represents a placement location of the device to be charged on the wireless charging apparatus, the movement information represents a distance that the first drive assembly and the second drive assembly need to move, i.e. the distance that the charging coil assembly 101 needs to be moved to the position corresponding to the device to be charged, in one example, the control drive assembly includes a MUC (micro control unit 302), and the micro control unit 302 receives the position information, performs calculation processing on the position information, converts the position information into the movement information, and further, in one example, the micro control unit 302 is connected to the position detection processing chip 301, in addition, in an optional example, the controlling the driving assembly to control the first driving assembly and the second driving assembly to move includes: the control driving component controls the movement of the first driving component and the second driving component through a motor based on the obtained movement information, for example, the micro control unit 302 transmits the movement information to the motor control chip 306, and then controls the motor, for example, the first direction driving motor 105 and the second direction driving motor 108, to move the motor carrying the wireless charging coil to a position corresponding to a receiving coil of the device to be charged, as shown in fig. 5.

In addition, the wireless charging device further comprises a wireless charging chip 303, after the wireless charging chip 303 is started, the device to be charged can be charged, such as charging by causing electromagnetic induction between the charging coil assembly 101 (transmitting coil) and the receiving coil of the device to be charged, in one example, the wireless charging chip 303 further controls the coil resonant circuit 305(LC resonant circuit) to realize the charging by controlling the driving unit 304 (including Driver, driving chip and MOSFETs, electronic control switch), as shown in fig. 5, wherein, the control driving component is further connected with the wireless charging chip 303, if the micro control unit 302 is connected with the wireless charging chip 303, after the position information or the movement information is obtained, the wireless charging chip 303 is started, so that the charging coil finally wirelessly charges the device to be charged. In one example, after the control driving assembly (e.g., the micro control unit 302) acquires the position information, the wireless charging chip 303 is simultaneously activated, and simultaneously the acquired position information or the processed movement information is transmitted to the motor control chip 306, so as to control the movement of the charging coil assembly 101, when the charging coil assembly 101 moves to a position corresponding to a receiving coil of a device to be charged, wireless charging can be started, so as to save charging time and improve charging efficiency, in another example, after the control driving assembly (e.g., the micro control unit 302) acquires the position information, the acquired position information or the processed movement information is transmitted to the motor control chip 306, so as to control the movement of the charging coil assembly 101, when the charging coil assembly 101 moves to a position corresponding to a receiving coil of a device to be charged, the motor control chip 306 feeds back a signal of which the position is aligned to the control driving assembly, and after obtaining an alignment feedback signal, the control driving assembly restarts the wireless charging chip 303, and then wirelessly charges the device to be charged, as shown in fig. 6.

As an example, the wireless charging device further includes a charging determination component and a device placement determination component, which are disposed on the base 100, wherein the charging determination component is configured to detect whether the device to be charged is charged completely, and the device placement determination component is connected to the charging determination component and configured to detect whether there are other devices to be charged placed on the wireless charging device when the charging determination component determines that the charging of the device to be charged is completed, as shown in fig. 6.

Specifically, still be provided with a charge judgement subassembly in the wireless charging device, in an example, the judgement subassembly that charges includes a charge judgement chip, the judgement chip that charges can detect the equipment that waits to charge is the completion of charging, if the judgement chip that charges detects that charging is incomplete, then keep continuing to carry out wireless charging, if detect to charge to complete can control wireless charging chip 303 stop work, also can be control wireless charging device system automatic switch into standby mode, and make charging coil subassembly 101 automatic re-setting, in addition, in an example, still be provided with pilot lamp 202 on the casing, when the judgement chip that charges detects the completion of charging, can control simultaneously pilot lamp 202 lights. In addition, can also be provided with a reset key 201 on the casing, can be when charging the completion, the system can get back to initial position automatically at the charging coil under the circumstances of charging the completion, under some special circumstances, can the manual work start reset key 201 when the unable normal initial state that resumes of equipment to control charging coil subassembly 101 to get back to initial position, make charging coil subassembly 101 reset through the mode of clicking reset key 201 promptly, if can be after clicking reset key 201, little the control unit 302MCU obtains reset signal, and further through motor control chip 306 control motor with charging coil subassembly 101 removes to the initial position of settlement.

In addition, in an example, still be provided with a device in the wireless charging device and place the judgement subassembly, the device is placed the judgement subassembly with charge and judge the subassembly and be connected, in an example, the device is placed and is judged the subassembly and include that a device places the judgement chip, the device is placed and is judged the chip and can be received charge the signal of judging the chip, when the judgement chip that charges detects that the equipment that waits to charge is charged and is accomplished, the device is placed the chip and is detected other equipment that wait to charge are put into when wireless charging equipment is last, if have, then further with signal transfer to position detection subassembly, carry out position detection and subsequent action of charging, if do not have other equipment that wait to charge to place, then control wireless charging device is in standby mode. In addition, in an example, the standby mode may be displayed through the indicator light 202, in an example, the charging coil of the system may automatically return to the initial position when charging is completed, and in some special cases, the reset key 201 may be manually activated when the device cannot normally return to the initial state, so as to control the charging coil assembly 101 to return to the initial position, that is, when the reset key 201 is provided, the charging coil assembly 101 may be controlled to reset by clicking the reset key 201.

In addition, as shown in fig. 4 to 6 and also shown in fig. 1 to 3, the present invention further provides a wireless charging method, including the steps of:

providing a wireless charging device according to any one of the above embodiments of the present invention;

controlling the movement of the charging coil assembly 101 based on the first and second driving assemblies to align the charging coil assembly 101 with a receiving coil of the device to be charged; and

and charging the equipment to be charged based on the wireless charging device.

Specifically, the present invention provides a wireless charging method, first, providing a wireless charging apparatus according to any one of the above embodiments of the present invention, and starting a power supply to enable the wireless charging apparatus to operate, then, providing a device to be charged, placing the device to be charged on the wireless charging apparatus, when the wireless charging apparatus detects that the device to be charged is placed, controlling the first driving assembly and the second driving assembly, and further controlling the movement of the charging coil assembly 101, in an example, the device placement determination assembly mentioned in the above embodiments may be provided in the wireless charging apparatus, and may determine whether the device to be charged is placed on the wireless charging apparatus after the wireless charging apparatus is started, and then, when the charging coil assembly 101 moves to a position aligned with a receiving coil of the device to be charged, and charging is carried out.

In the charging method of the present invention, the charging coil assembly 101 can move, for example, can move in a plane parallel to the surface of the base 100, wherein the first driving assembly drives the charging coil assembly 101 to move in a first direction, which can be any direction in the plane in which the charging coil assembly 101 moves, in addition, the second driving assembly drives the charging coil assembly 101 to move in a second direction, which can be any direction in the plane in which the charging coil assembly 101 moves, further, an included angle is set between the first direction and the second direction, so that the charging coil assembly 101 can be moved to move the charging coil assembly 101 to a required position under the action of the first driving assembly and the second driving assembly, that is, the preset position, here, the movement in the first direction and the second direction may be a movement back and forth in the first direction and a movement back and forth in the second direction, in an example, the first direction and the second direction are perpendicular to each other, for example, for a certain preset position, the charging coil assembly 101 may be moved to a first position by the first driving assembly, and then the charging coil assembly 101 may be moved to the preset position by the second driving assembly, of course, the second driving assembly may move the charging coil assembly 101 first and then the charging coil assembly 101 is moved by the first driving assembly, and similarly, the first driving assembly and the second driving assembly may simultaneously drive the charging coil assembly 101 to move. In an example, if the initial position of the charging coil assembly 101 coincides with the preset position, the first driving assembly and the second driving assembly both drive the charging coil assembly 101 to move by zero distance, that is, the charging coil assembly 101 does not move. Through the scheme, the charging coil assembly 101 is movable, namely the transmitting end position of the wireless charging device can move freely within a certain range, the problem of dislocation of the transmitting end coil and the receiving end coil can be perfectly solved, the area of the chargeable area 107 can be increased, the charging efficiency is improved, the charging coil assembly is suitable for different portable electronic devices, and the universality is high.

As an example, the charging coil assembly 101 moves in a manner selected from at least one of driving the charging coil assembly 101 to move in the first direction based on the first drive assembly and driving the charging coil assembly 101 to move in the second direction based on the second drive assembly, wherein when the second drive assembly is disposed on the first drive assembly, the first drive assembly drives the charging coil assembly 101 to move in the first direction based on the second drive assembly.

As an example, the charging coil assembly 101 includes a carrier 101b and a charging coil disposed on the carrier 101b, the wireless charging device further includes a second direction driving motor 108 disposed on the base 100, wherein the second direction driving motor 108 drives the charging coil assembly 101 to move along the second driving assembly based on the carrier 101b, and a direction of movement of the charging coil assembly 101 along the second driving assembly is the same as the second direction.

By way of example, the second direction drive motor 108 is arranged on the carrier 101b, the charging coil 101a is integrated on a PCBA board and arranged on the carrier 101b via the PCBA board, and the PCBA board is arranged above the second direction drive motor 108.

As an example, the wireless charging method further comprises the steps of: after the device to be charged is placed on the wireless charging device, detecting the position information of the device to be charged placed on the wireless charging device, and controlling the movement condition of the charging coil assembly 101 based on the position information, so that the charging coil assembly 101 is aligned with the receiving coil of the device to be charged.

Specifically, in an example, when it is detected that the device to be charged is placed on the wireless charging device, the position of the device to be charged is detected to obtain the position information of the device to be charged, in an example, the device placement determination component transmits a signal to the position detection component after detecting that the device to be charged is placed, the position detection component obtains the position information of the device to be charged, the position detection component transmits the position information to the control driving component in the wireless charging device, and the control driving component performs calculation processing on the position information, so as to control the movement of the first driving component and the second driving component, and thus, the charging coil component 101 is aligned with the receiving coil of the device to be charged.

Specifically, in an example, the base 100 includes a detection component, the detection component may be disposed on the base 100 directly, or may be disposed on the base 100 through other devices, the detection component may be configured to detect the position information of the device to be charged after the device to be charged is placed on the wireless charging apparatus, and may be the position of a coil received by the device to be charged, in an example, as shown in fig. 5, the detection component may include a position detection array 300, for example, the position detection array 300 may be configured by a plurality of position detection sensors, in an example, the detection component and a related position sensing part are defined on a large PCB' a, the coil is found and fitted in a suitable position through moving, when the device to be charged is placed on a charging platform of the wireless charging apparatus, as in the device to be charged placement area 203 of the cover 200, the position detection array 300 can detect the position of the receiving coil of the device to be charged and obtain the position information thereof, in a further example, the position detection assembly further includes a position detection processing chip 301, the position detection processing chip 301 is connected to the position detection array 300, can receive the position information obtained by the position detection array 300 and transmit the position information to other control assemblies to control the position of the charging coil assembly 101 based on the position information, in addition, the position detection processing chip 301 can process the received position information obtained by the position detection array 300, such as processing the information into a form that can be received by a subsequent control assembly, so as to transmit the processed information to the subsequent control assembly, in an example, the MCU and the position detection chip jointly determine the RX (Receive X, "X" represents cross, i.e. wireless charging receiving end) position and calculate the moving amount of the first driving component and the second driving component, the MCU drives the motor control chip to drive the motor to the target position, and the MCU drives the wireless charging chip to drive the charging module to start working.

Specifically, in an example, the wireless charging device further includes a control driving assembly, and the control driving assembly may be directly disposed on the base 100, or may be disposed on the base 100 through another structure, where the control driving assembly may receive the position information obtained by the detecting assembly, or receive information obtained by processing position information by the position detection processing chip 301, and after receiving the information, control movement of the first driving assembly and the second driving assembly based on the information, so as to move the charging coil assembly 101 to a location corresponding to the position of the device to be charged for charging, where the control driving assembly receives the information, such as the position information, and then may process the information, and convert the information into movement information, such as convert the position information into the movement information, in one example, the location information represents a placement location of the device to be charged on the wireless charging apparatus, the movement information represents a distance that the first drive assembly and the second drive assembly need to move, i.e. the distance that the charging coil assembly 101 needs to be moved to the position corresponding to the device to be charged, in one example, the control drive assembly includes a MUC (micro control unit 302), and the micro control unit 302 receives the position information, performs calculation processing on the position information, converts the position information into the movement information, and further, in one example, the micro control unit 302 is connected to the position detection processing chip 301, in addition, in an optional example, the controlling the driving assembly to control the first driving assembly and the second driving assembly to move includes: the control driving component controls the movement of the first driving component and the second driving component through a motor based on the obtained movement information, for example, the micro control unit 302 transmits the movement information to the motor control chip 306, and then controls the motor 307, for example, the first direction driving motor 105 and the second direction driving motor 108 move the motor carrying the wireless charging coil to a position corresponding to the receiving coil of the device to be charged, as shown in fig. 5.

In addition, the wireless charging device further comprises a wireless charging chip 303, wherein after the wireless charging chip 303 is started, the device to be charged can be charged, such as charging by causing electromagnetic induction between the charging coil assembly 101 (transmitting coil) and the receiving coil of the device to be charged, in one example, the wireless charging chip 303 further controls the coil resonant circuit 305(LC resonant circuit) to realize the charging by controlling the driving unit 304 (including Driver, driving chip and MOSFETs, electronic control switch), as shown in fig. 5, wherein, the control driving component is further connected with the wireless charging chip 303, if the micro control unit 302 is connected with the wireless charging chip 303, after the position information or the movement information is obtained, the wireless charging chip 303 is started, so that the charging coil finally wirelessly charges the device to be charged. In one example, after the control driving assembly (e.g., the micro control unit 302) acquires the position information, the wireless charging chip 303 is simultaneously activated, and simultaneously the acquired position information or the processed movement information is transmitted to the motor control chip 306, so as to control the movement of the charging coil assembly 101, when the charging coil assembly 101 moves to a position corresponding to a receiving coil of a device to be charged, wireless charging can be started, so as to save charging time and improve charging efficiency, in another example, after the control driving assembly (e.g., the micro control unit 302) acquires the position information, the acquired position information or the processed movement information is transmitted to the motor control chip 306, so as to control the movement of the charging coil assembly 101, when the charging coil assembly 101 moves to a position corresponding to a receiving coil of a device to be charged, the motor control chip 306 feeds back a signal of which the position is aligned to the control driving assembly, and after obtaining an alignment feedback signal, the control driving assembly restarts the wireless charging chip 303, and then wirelessly charges the device to be charged, as shown in fig. 6.

As an example, the wireless charging method further comprises the steps of: after the wireless charging device starts to charge the equipment to be charged, detecting whether the equipment to be charged is charged completely, and if the charging is not finished, continuing to charge; if the charging is finished, continuously detecting whether other equipment to be charged is placed, if so, repeating the steps of moving, aligning and charging the charging coil assembly 101, and if not, controlling the wireless charging device to stand by.

Specifically, in an example, the method further includes the step of detecting whether the charging of the device to be charged is completed, wherein in an example, the charging determination module may perform detection, and if the charging determination chip detects that the charging is not completed, the wireless charging is kept to be continuously performed, and if the charging is completed, the wireless charging chip 303 may be controlled to stop working, or the wireless charging device system may be controlled to automatically switch to a standby mode, and the charging coil assembly 101 may be automatically reset. In addition, in an example, after the charging is detected to be completed, the method further includes the step of continuously detecting whether other devices to be charged are placed on the wireless charging device, in an example, the device placement judging component can judge whether other devices to be charged are placed, if so, a signal is further transmitted to the position detecting component to perform position detection and subsequent charging actions, and if not, the wireless charging device is controlled to be in a standby mode.

Specifically, a charging judgment component is further arranged in the wireless charging device, in an example, the charging judgment component includes a charging judgment chip, the charging judgment chip can detect that charging is completed when the device to be charged is to be charged, if the charging judgment chip detects that charging is not completed, wireless charging is kept to be continuously performed, if charging is completed, the wireless charging chip 303 can be controlled to stop working, or the wireless charging device system can be controlled to automatically switch into a standby mode, and the charging coil component 101 is automatically reset, in addition, in an example, an indicator lamp 202 is further arranged on the shell, and when the charging judgment chip detects that charging is completed, the indicator lamp 202 can be simultaneously controlled to be turned on. In addition, can also be provided with a reset key 201 on the casing, can be when charging the completion, the system can get back to initial position automatically at the charging coil under the circumstances of charging the completion, under some special circumstances, can the manual work start reset key 201 when the unable normal initial state that resumes of equipment to control charging coil subassembly 101 to get back to initial position, make charging coil subassembly 101 reset through the mode of clicking reset key 201 promptly, if can be after clicking reset key 201, little the control unit 302MCU obtains reset signal, and further through motor control chip 306 control motor with charging coil subassembly 101 removes to the initial position of settlement.

To further explain the wireless charging device and the wireless charging method of the present invention, an implementation manner of the overall function of the embodiment is provided, as shown in fig. 6, first of all, a step of placing 401 a device to be charged is executed, then, a step of detecting 402 location information by a location detecting component is executed, after the location information is obtained, a step of calculating 403 movement information by an MCU is executed, then, after the MCU obtains the location information of a receiving coil (RX coil) of the device to be charged, a step of starting a wireless charging chip 404 is executed, meanwhile, after the MCU obtains the location information, a step of controlling a chip to work 405 by a motor is executed, then, a step of moving a charging coil component to a corresponding location 406 by the motor is executed, so that the motor moves a carrying coil to the corresponding location of RX, thereby executing a step of starting wireless charging 407, further, a step of verifying whether charging is completed 408 is executed, when, the step of continuing to charge 409 is executed, when charging is completed, the step of verifying whether the device to be charged 410 is placed is executed, when not, the step of putting the wireless charging device in the standby mode 411 is executed, if so, the steps of position detection and charging are repeated, and the execution process can refer to the description of the embodiment.

As an example, the wireless charging method further comprises the steps of: after the charging of the device to be charged is finished, the charging coil assembly 101 is controlled to return to the initial position based on the first driving assembly and the second driving assembly.

Specifically, in an example, after the charging of the device to be charged is finished, the method further includes a step of controlling the charging coil assembly 101 to return to the initial position based on the first driving assembly and the second driving assembly, for example, whether charging is finished is judged by a charging judgment chip of the charging judgment assembly, and after the charging is judged to be finished, a signal is transmitted to the control driving assembly, for example, to the micro control unit 302MCU, and then the motor is controlled by the motor control chip 306 to move the charging coil assembly 101 to the set initial position. Certainly, can also be when judging that charging of the judgement module that charges judges that the chip judges that charging is accomplished, give through pilot lamp 202 and charge and accomplish the signal, after the signal display again, the system can get back to initial position automatically at the charging coil under the circumstances of charging the completion, under some special circumstances, can the manual work start reset key when the unable normal initial state that resumes of equipment to control charging coil subassembly 101 to get back to initial position, in an example, the reset key has the compulsory reset function, need not press the reset key in the equipment normal use process.

In summary, the present invention provides a wireless charging device and a wireless charging method, the wireless charging device at least includes a base, a first driving assembly, a second driving assembly, and a charging coil assembly, wherein: the first driving assembly is arranged on the base and drives the charging coil assembly to move along a first direction; the second driving assembly is arranged on the base and drives the charging coil assembly to move along a second direction, and an included angle is formed between the first direction and the second direction so as to move the charging coil assembly to a preset position based on the first driving assembly and the second driving assembly. Through the scheme, the position freedom problem of the charging coil assembly of the wireless charging device is realized, the wireless charging device is suitable for different portable electronic equipment, the universality is strong, the transmitting end position of the wireless charging device can freely move in a certain range, the problem of dislocation of the transmitting end coil and the receiving end coil can be perfectly solved, the area of a chargeable area can be increased, and the charging efficiency is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A wireless charging device, characterized in that, wireless charging device includes base, first drive assembly, second drive assembly and charging coil subassembly at least, wherein: the first driving assembly is arranged on the base and drives the charging coil assembly to move along a first direction, the second driving assembly is arranged on the base and drives the charging coil assembly to move along a second direction, and an included angle is formed between the first direction and the second direction so as to move the charging coil assembly to a preset position based on the first driving assembly and the second driving assembly.

2. The wireless charging device of claim 1, wherein the second driving assembly is disposed on the first driving assembly and is movable along the first driving assembly, wherein the first driving assembly drives the charging coil assembly to move along the first direction based on the second driving assembly.

3. The wireless charging device according to claim 1 or 2, wherein the first driving assembly comprises a first guide rail, the second driving assembly comprises a second guide rail, one end of the second guide rail is disposed on the first guide rail, the second guide rail is movable along the first guide rail, the charging coil assembly is disposed on the second guide rail, and the charging coil assembly is movable along the second guide rail, wherein the direction of movement of the second guide rail along the first guide rail is the same as the first direction, and the direction of movement of the charging coil assembly along the second guide rail is the same as the second direction.

4. The wireless charging device according to claim 3, wherein the first driving assembly further comprises a third rail disposed in parallel with the first rail, wherein the other end of the second rail is disposed on the third rail, the second rail is movable along the third rail, and the direction in which the second rail moves along the third rail is the same as the first direction.

5. The wireless charging apparatus according to claim 2, further comprising a transmission device disposed on the base, wherein the transmission device drives the second driving assembly to move along the first driving assembly.

6. The wireless charging device according to claim 5, wherein the transmission device comprises a first direction driving motor disposed on the base and a transmission belt connected to the first direction driving motor, wherein the first direction driving motor drives the second driving assembly to move along the first driving assembly through the transmission belt.

7. The wireless charging device of claim 2, wherein the charging coil assembly comprises a carrier and a charging coil disposed on the carrier, the wireless charging device comprises a second direction driving motor disposed on the base, and the second direction driving motor drives the charging coil assembly to move along the second driving assembly based on the carrier.

8. The wireless charging device of claim 7, wherein the second direction driving motor is disposed on the carrier, the charging coil is integrated on a PCBA board and disposed on the carrier through the PCBA board, and the PCBA board is disposed above the second direction driving motor.

9. The wireless charging device according to claim 1 or 2, further comprising a cover disposed on the base, wherein an accommodating space is formed between the cover and the base, and the first driving assembly, the second driving assembly and the charging coil assembly are disposed in the accommodating space.

10. The wireless charging device of claim 1 or 2, further comprising a position detection component, wherein the position detection component is disposed on the base and is configured to detect position information of a device to be charged placed on the wireless charging device.

11. The wireless charging device according to claim 10, further comprising a control driving assembly disposed on the base and connected to the position detecting assembly, for receiving the position information and controlling the first driving assembly and the second driving assembly to drive the charging coil assembly to move based on the position information, so that the charging coil assembly is aligned with the receiving coil of the device to be charged.

12. The wireless charging device according to claim 10, further comprising a charging determination component and a device placement determination component disposed on the base, wherein the charging determination component is configured to detect whether charging of the device to be charged is completed, and the device placement determination component is connected to the charging determination component and configured to detect whether there are other devices to be charged placed on the wireless charging device when the charging determination component determines that charging of the device to be charged is completed.

13. A wireless charging method, characterized in that the wireless charging method comprises the following steps:

providing a wireless charging apparatus according to any one of claims 1-12;

and charging the equipment to be charged based on the wireless charging device.

14. The wireless charging method according to claim 13, further comprising the steps of: after the device to be charged is arranged on the wireless charging device, detecting the position information of the device to be charged arranged on the wireless charging device, and controlling the movement condition of the charging coil assembly based on the position information so as to align the charging coil assembly with the receiving coil of the device to be charged.

15. The wireless charging method according to claim 13, further comprising the steps of: after the wireless charging device starts to charge the equipment to be charged, detecting whether the equipment to be charged is charged completely, and if the charging is not finished, continuing to charge; if the charging is finished, continuously detecting whether other equipment to be charged is placed, if so, repeating the steps of moving, aligning and charging the charging coil assembly, and if not, controlling the wireless charging device to stand by.

16. The wireless charging method of claim 13, wherein the charging coil assembly moves in a manner selected from at least one of driving the charging coil assembly to move in the first direction based on the first driving assembly and driving the charging coil assembly to move in the second direction based on the second driving assembly, wherein the first driving assembly drives the charging coil assembly to move in the first direction based on the second driving assembly when the second driving assembly is disposed on the first driving assembly.

17. The wireless charging method according to any one of claims 13 to 16, further comprising the steps of: after the charging of the device to be charged is finished, the charging coil assembly is controlled to return to the initial position based on the first driving assembly and the second driving assembly.