CN112152274A - Wireless charging base and wireless charging base control method - Google Patents

Abstract

The present invention provides a wireless charging base and a wireless charging base control method. The wireless charging base includes a base, a motion mechanism, a charging module and a plurality of distance sensors. The base is used to carry a device to be charged. The motion mechanism is disposed in the base. The charging module is movably disposed on the motion mechanism. The distance sensor is used to collect contour position information of the device to be charged, and the motion mechanism moves the charging module to the bottom of the device to be charged according to the contour position information. The transmitting coil of the charging module of the above-mentioned wireless charging base can be aligned with the receiving coil of the device to be charged to ensure the charging efficiency of the wireless charging base on the device to be charged.

Description

Wireless charging base and wireless charging base control method

technical field

The invention relates to the field of wireless charging, in particular to a wireless charging base and a wireless charging base control method.

Background technique

Wireless charging technology originates from wireless power transmission technology and can be divided into two types: low-power wireless charging and high-power wireless charging. Since the energy is transmitted between the charger and the device to be charged by a magnetic field, no wires are connected between the two.

At present, most wireless chargers on the market are wireless charging bases. The wireless charging base is provided with a transmitting coil, and the device to be charged is provided with a receiving coil. When the device to be charged is wirelessly charged, the positions of the transmitter coil of the wireless charging base and the receiver coil of the device to be charged are aligned with each other to ensure smooth charging.

However, when the user places the device to be charged on the wireless charging base, it often occurs that the placement position of the structural coil of the device to be charged deviates from the coil of the wireless charging base. When this happens, the efficiency of electromagnetic energy transmission decreases due to the decrease in coupling between the transmitter coil and the receiver coil, and the transmitter coil needs to provide more energy to maintain the charging power of the receiver coil. Due to the offset placement of the device to be charged, the transmitting coil needs to transmit more energy, which causes the wireless charging base to heat up, which affects the stable operation of the system and the charging speed. When the device to be charged is placed too far away, it will cause the wireless charging base to fail to charge or to fail to trigger, resulting in failure to charge.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a technology that can ensure that the transmitting coil of the wireless charging base is aligned with the receiving coil of the device to be charged, thereby ensuring higher charging efficiency.

According to an aspect of the present disclosure, a wireless charging base is provided.

A wireless charging base includes:

The base body is used to carry the device to be charged;

a movement mechanism, arranged in the seat body;

a charging module, which is movably mounted on the motion mechanism, and the motion mechanism drives the charging module to move; and

A plurality of distance sensors are arranged on the periphery of the base body, and the plurality of distance sensors are used to collect the contour position information of the device to be charged, and the motion mechanism moves the charging module to the position according to the contour position information. below the device to be charged.

According to another aspect of the present disclosure, a wireless charging base control method is also provided.

A wireless charging base control method includes:

Collect the contour position information of the device to be charged on the base of the wireless charging base;

The charging module is moved under the device to be charged according to the contour position information.

According to the wireless charging base control method, the above-mentioned wireless charging base collects the contour position information of the device to be charged on the base body through the distance sensor, and the motion mechanism cooperates with the first motion assembly through the second motion component to move according to the position graphic information. Move the transmitter coil of the charging module to below the receiver coil of the device to be charged. Therefore, the charging module of the wireless charging base can be aligned with the receiving coil of the device to be charged, so as to ensure the charging efficiency of the wireless charging base to the device to be charged.

Description of drawings

FIG. 1 is a schematic structural diagram of a wireless charging base according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of the motion mechanism of the wireless charging base shown in FIG. 1;

3 is a schematic diagram of an electrical module according to the wireless charging base shown in FIG. 1;

4 is a flowchart of a method for controlling a wireless charging base according to an embodiment of the present disclosure;

FIG. 5 is a specific flowchart of step S2 according to the wireless charging base control method shown in FIG. 4;

FIG. 6 is a specific flowchart of step S21 in the wireless charging base control method shown in FIG. 5 .

The reference numerals are explained as follows: 10, wireless charging base; 11, base body; 111, receiving cavity; 12, motion mechanism; 121, first motion component; 1211, first screw rod; 1212, first baffle plate; 1213, 1214, the first motor; 122, the second movement assembly; 1221, the chassis; 1222, the second screw; 1223, the second baffle; 1224, the second motor; 1225, the second slider; 13 131, circuit board; 132, transmitting coil; 133, shielding layer; 14, distance sensor; 15, bracket; 16, processor.

Detailed ways

While the present invention may readily be embodied in different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification, while it is to be understood that this specification is to be regarded as the Exemplary illustrations of principles are disclosed and are not intended to limit the invention to those described herein.

Thus, a reference to a feature in this specification will be used to describe one of the features of an embodiment of the present disclosure and not to imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined together to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Thus, unless otherwise stated, the combinations described are not intended to be limiting.

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this description of the present disclosure will be thorough and complete, and will consolidate the concept of the example embodiments. It will be fully conveyed to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated descriptions will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of example embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, steps, etc. may be employed. In other instances, well-known structures, methods, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

Some of the block diagrams shown in the figures are functional entities that do not necessarily necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The preferred embodiments of the present invention will be further elaborated below with reference to the accompanying drawings of the present specification.

Referring to FIG. 1 and FIG. 2 , the present disclosure provides a wireless charging base. The wireless charging base is used to wirelessly charge the device to be charged. The devices to be charged can be electronic devices such as smart mobile terminals, mobile power sources, electric vehicles, notebook computers, drones, e-books, electronic cigarettes, smart wearable devices, sweeping robots, Bluetooth speakers, electric toothbrushes, and rechargeable wireless mice. The application charging object of the wireless charging base is not limited here, as long as the electronic device has a rechargeable battery and can realize wireless charging, the wireless charging base provided by the present disclosure can be applied. For the convenience of description, the device to be charged is described by taking a mobile phone as an example, and the wireless charging coil thereof is located at the center point of the mobile phone.

Specifically in this embodiment, please refer to FIG. 1 , the wireless charging base 10 includes a base body 11 , a motion mechanism 12 , a charging module 13 and a distance sensor 14 . The movement mechanism 12 and the charging module 13 are arranged on the base body 11 , and the movement mechanism 12 drives the charging module 13 to realize two-dimensional movement on the base body 11 . The distance sensor 14 is arranged above the base body 11 and is used to collect the contour position information of the device to be charged placed on the charging plane of the base body 11 .

The above-mentioned wireless charging base 10 collects the contour position information of the device to be charged on the base body 11 through the distance sensor 14 , the motion mechanism 12 obtains the position of the charging coil of the device to be charged according to the contour position information of the device to be charged, and cooperates with the motion mechanism 12 The movement can drive the charging coil of the charging module 13 to move below the charging coil of the device to be charged. Therefore, the charging coil of the charging module 13 can be aligned with the charging coil of the device to be charged, so as to ensure the charging efficiency of the wireless charging base for the device to be charged.

The base body 11 is used for carrying the device to be charged. An accommodating cavity 111 for accommodating the charging module 13 is opened inside the base body 11 . The shape of the receiving cavity 111 is substantially the same as the movement area of the charging module 13 . The shape of the receiving cavity 111 may be a rectangle, a circle, or the like. Specifically, in this embodiment, the shape of the receiving cavity 111 of the base body 11 is a rectangle.

The surface of the base body 11 is a charging plane, and the device to be charged is placed on the charging plane. The shape of the charging plane is not limited, and the charging plane may be a circle or a square, an irregular shape, and the like. However, the size of the charging plane is smaller than the size of the cross section of the receiving cavity 111 . In addition, for the size of the charging plane, when the device to be charged is arbitrarily placed on the charging plane, it is ensured that the charging module 13 of the device to be charged can move the charging module 13 so that the transmitting coil of the charging module 13 can move to the device to be charged. below the receiver coil.

The movement mechanism 12 is arranged in the receiving cavity 111 of the base body 11 . The motion mechanism 12 includes a first motion component 121 and a second motion component 122 , and the second motion component 122 is movably disposed on the first motion component 121 . It can be understood that the first moving component 121 may be fixedly arranged on the base body 11 , or may be movably arranged relative to the base body 11 .

The moving direction of the second moving element 122 on the first moving element 121 intersects with the moving direction of the charging module 13 on the second moving element 122 , and the included angle may be an acute angle, a right angle or an obtuse angle. Specifically, the movement direction of the second movement component 122 on the first movement component 121 and the movement direction of the charging module 13 on the second movement component 122 are perpendicular to each other. For convenience of description, it is now specified that the movement direction of the second movement component 122 on the first movement component 121 is the Y-axis direction. The moving direction of the charging module 13 on the second moving component 122 is the X-axis direction. Therefore, according to the first movement component 121 , the second movement component 122 , and the charging module 13 can move to the corresponding position according to the coordinates of the target position.

Please also refer to FIG. 2 . Specifically, in this embodiment, the first moving component 121 is fixed on the base body 11 , and the position of the first moving component 121 relative to the base body 11 does not change. The first moving component 121 includes a first screw rod 1211 and a first baffle plate 1212 . The second movement component 122 is movably disposed on the first screw rod 1211 . The first baffle 1212 is disposed on one side of the first screw rod 1211 for resisting the second moving component 122 . Both ends of the first baffle plate 1212 are distributed and fixed on the two inner side walls of the base body 11 .

Specifically, the first moving component 121 further includes a first sliding block 1213 . The second moving component 122 is connected with the first screw rod 1211 through the first sliding block. The first screw rod 1211 passes through the first sliding block. The first baffle 1212 is fixed on the upper surface of the first sliding block 1213 , and the first baffle 1212 is fixed on the lower surface of the first sliding block 1213 . If the first baffle 1212 is fixed, the first sliding block 1213 is fixed, and the first sliding block 1213 cannot rotate relative to the first screw rod 1211 , and can only move along the axial direction of the first screw rod 1211 . When the first screw 1211 rotates once, the first slider 1213 moves a pitch. By controlling the number of forward rotation and reverse rotation of the first screw 1211, the position of the first slider 1213 at the first screw 1211 is adjusted. The movement of the first slider drives the second movement component 122 to move, thereby adjusting the position of the second movement component 122 on the first screw rod 1211 .

The first motion assembly 121 also includes a first motor 1214 . The first motor 1214 is drivingly connected with the first screw rod 1211 . The first motor 1214 drives the first screw 1211 to rotate. The position of the chassis on the second screw rod is adjusted by adjusting the rotational speed and rotation time of the first motor 1214 . In other embodiments, the first motor 1214 may also be omitted, and the first lead screw 1211 may also be driven to rotate by the outside, or manually driven to rotate.

The second moving assembly 122 includes a chassis 1221 for carrying the charging module 13 , a second screw rod 1222 and a second baffle 1223 . The chassis 1221 is movably disposed on the second screw rod 1222 .

The chassis 1221 is used to carry the charging module 13 , then the chassis 1221 moves and the charging module 13 moves accordingly. In addition, the charging module 13 is placed at the center of the chassis 1221, and the center of the chassis 1221 is aligned with the center of the charging module 13, so it can be guaranteed that when the chassis 1221 moves to the target position, it means that the charging module 13 also moves to the center position.

It can be understood that, if there is a deviation between the center position of the device to be charged and the center position of the chassis 1221, when the chassis 1221 moves toward the target position, after the center position of the chassis 1221 moves to the target position, the chassis 1221 needs to be recharged. Move a certain compensation distance to compensate for the deviation between the center position of the device to be charged and the center position of the chassis 1221 to generate a large error.

The second lead screw 1222 is arranged along the Y-axis direction. The second motion assembly 122 also includes a second motor 1224 . The second motor 1224 is disposed at one end of the second screw rod 1222 . The second motor 1224 is drivingly connected to the second lead screw 1222 . The second motor 1224 drives the second screw 1222 to rotate. The position of the chassis 1221 on the second screw rod 1222 is adjusted by adjusting the rotational speed and the rotation time of the second motor 1224 . In other embodiments, the second motor 1224 may also be omitted, and the second lead screw 1222 may also be driven to rotate by the outside, or be manually driven to rotate.

The second baffle 1223 is disposed on one side of the second screw rod 1222 to resist the chassis 1221 . The rotation of the second screw rod 1222 causes the chassis 1221 to move along the axial direction of the second screw rod 1222 . Specifically, in this embodiment, the second baffle 1223 is an elongated plate. The second baffle plate 1223 of the second baffle plate 1223 is disposed on the bottom side of the second screw rod 1222 .

It can be understood that the second baffle 1223 can also be disposed on the left or right side of the second screw 1222 , as long as the second baffle 1223 can resist the chassis 1221 to prevent the chassis 1221 from rotating with the second screw 1222 . Moreover, the second baffle 1223 is located below the chassis 1221 , and the second baffle 1223 avoids interfering with the axial movement of the chassis 1221 along the second screw rod 1222 .

Specifically in this embodiment, the second moving component 122 further includes a second sliding block 1225 . The second sliding block 1225 is disposed on one side of the chassis 1221 , and the chassis 1221 is movably connected to the second screw rod 1222 through the second sliding block 1225 . The second screw 1222 passes through the second sliding block 1225 , the chassis 1221 is fixed on the upper surface of the second sliding block 1225 , and the second baffle 1223 is fixedly connected to the lower surface of the second sliding block 1225 . When the second screw rod 1222 rotates, the second slider 1225 cannot rotate relative to the second screw rod 1222 due to the resisting effect of the second baffle plate 1223 on the second slider 1225, and can only rotate along the second screw rod 1222. Axial movement. The second screw 1222 rotates once, and the second slider 1225 moves a pitch. By controlling the number of forward rotation and reverse rotation of the second screw 1222, the position of the second slider 1225 on the second screw 1222 is adjusted. The movement of the second slider 1225 drives the chassis 1221 to move, thereby adjusting the position of the charging module 13 on the chassis 1221 on the second screw rod 1222 .

It can be understood that in other embodiments, when the included angle between the movement direction of the second movement component 122 on the first movement component 121 and the movement direction of the charging module 13 on the second movement component 122 is an acute angle or an obtuse angle, then According to the trigonometric function relationship of the included angles, the rotation cycles of the first screw rod 1211 and the second screw rod 1222 need to satisfy a corresponding proportional relationship or functional relationship, which can also achieve the purpose of adjusting the position of the charging module 13 .

Alternatively, the motion mechanism 12 can also be a telescopic cylinder, a telescopic motor, a conveyor belt, or a moving trolley, on which the charging module 13 is disposed. The motion mechanism 12 can also achieve the purpose of driving the charging module 13 to move.

The charging module 13 is fixed on the chassis 1221 and moves along the axial direction of the second screw rod 1222 with the movement of the chassis 1221 . In one embodiment, the charging module 13 includes a circuit board 131 , a charging coil 132 and a shielding layer 133 .

The circuit board 131 is used for arranging various electronic components of the charging module 13 .

The charging coil 132 is disposed on the circuit board 131 . The charging coil 132 may be a transmitting coil or a receiving coil. Correspondingly, the charging coil of the device to be charged may be a receiving coil or a transmitting coil. The center of the charging coil 132 is the center of the charging module 13 . The shielding layer 133 is provided on the surface of the charging coil 132 . The shielding layer 133 can prevent radiation from affecting the charging efficiency of the charging coil 132 .

Specifically, in this embodiment, the charging coil 132 is a transmitting coil. The transmitting coil is used for transmitting electromagnetic energy, the device to be charged is provided with a receiving coil, and the charging coil 132 is used for charging the device to be charged.

In another embodiment, the charging coil 132 may also be a receiving coil, and correspondingly, the charging coil of the device to be charged is a transmitting coil. Then the device to be charged can also charge the battery of the wireless charging base. Therefore, the wireless charging base can also store electric energy through the battery, so that in case of a power failure, the wireless charging base can also charge the to-be-charging device. The functions of the charging coil 132 of the charging module 13 and the charging coil of the device to be charged are not limited here, as long as the two charging coils have a transmitting coil and a receiving coil, charging can be achieved.

It can be understood that the charging coil 132 can also move relative to the circuit board 131 , which can also achieve the purpose of adjusting the position of the charging coil 132 , and finally achieve the purpose of aligning the charging coil 132 of the charging module 13 with the charging coil of the device to be charged.

The distance sensor 14 is used to collect the contour position information of the device to be charged on the base body 11 . A plurality of distance sensors 14 are arranged on the periphery of the base body 11 . The distance sensor 14 can sense the distance relationship between the distance sensor 14 and the outer contour of the device to be charged, so that the position information of the device to be charged on the charging plane can be obtained. It can be understood that the distance sensor 14 may be an optical distance sensor, an infrared distance sensor, an ultrasonic distance sensor, or the like.

Specifically, in this embodiment, the distance sensor 14 is an ultrasonic distance sensor. The ultrasonic distance sensor sends out ultrasonic signals from each side of the device to be charged, and receives the ultrasonic signals reflected by the device to be charged. Then the ultrasonic distance sensor can send out a modulated ultrasonic signal, which will be reflected back after reaching the front of the device to be charged and received by the ultrasonic distance sensor. The time of the ultrasonic signal going back and forth in the air can reflect the distance between the measured object and the ultrasonic module. The calculation formula is, distance=(time*340m/s)/2. When the emitted ultrasonic signal is not reflected back, it means that there is no device to be charged there. Therefore, the contour position of the device to be charged can be determined according to whether there is a reflected ultrasonic signal.

For smaller devices to be charged, such as charging earphones or watches, etc. The entire device to be charged falls within the charging coupling range of the charging coil 132 of the wireless charging base. That is, the charging coupling range of the charging coil 132 of the wireless charging base is larger than the volume of the device to be charged. Then the distance sensor only needs to collect the position information of the device to be charged. According to the position information, the charging coil of the charging module is moved below the device to be charged, so that the device to be charged falls within the charging coupling range of the charging coil, which can also achieve high-efficiency charging of the device to be charged.

Specifically, in this embodiment, the device to be charged is described by taking a mobile phone as an example. The contour position information obtained by the distance sensor also includes the contour shape of the device to be charged and the length information of each side of the contour. Because the charging coil of the mobile phone is located at the center point of the mobile phone. According to the outline position information of the mobile phone, the outline shape of the mobile phone and the length information of each side of the outline shape, the position of the center point of the mobile phone of the outline shape can be calculated.

First, the contour position information of the mobile phone is collected according to the distance sensor, and the contour position information is only the position where the contour of the mobile phone is located on the charging platform. In addition, the shape of the outline of the mobile phone can be obtained by sensing whether there is a reflected ultrasonic signal on each side of the mobile phone by the distance sensor. The outline of the phone is a rectangle. On each side, the start position to the end position of the reflected ultrasonic signal is recorded, and the length of the side can be calculated. By bisecting the length of each side, the position coordinates of the center point of the mobile phone can be calculated. Moreover, if the center of the charging coil of the mobile phone is aligned with the center of the mobile phone, the calculated position coordinates of the center point of the mobile phone are the central position coordinates of the charging coil.

In addition, there are four distance sensors 14, which are respectively disposed at the four top corners of the charging plane. Moreover, the installation height of the distance sensors 14 is higher than the charging plane, and the plurality of distance sensors 14 are located on the same height plane. The height at which the distance sensor 14 is located should be satisfied. When the device to be charged is placed on the charging plane, the device to be charged is within the range of the measuring height of the distance sensor 14 .

In other embodiments, the distance sensors 14 may also be 5, 6, or the like. The plurality of distance sensors 12 can be evenly distributed on the periphery of the charging plane, and the plurality of distance sensors 12 can perform inductive measurement on each side of the device to be charged from multiple angles, so as to ensure that the distance sensors 12 can completely measure the contour of the device to be charged. Length information for each side.

Therefore, the ultrasonic distance sensors at the four corners of the charging plane of the base body 11 cooperate with each other to scan the length and position information of each side of the four-sided contour of the device to be charged.

The wireless charging base 10 also includes a plurality of turntables 15 . A plurality of turntables 15 are distributed on the periphery of the base body 11 . The distance sensor 14 is correspondingly provided on the turntable 15 . The position of the turntable 15 is correspondingly set according to the placement requirements of the distance sensor 14 . In addition, the turntable 15 can drive the distance sensor 14 to rotate, and the rotation of the distance sensor 14 can increase the scanning range of the distance sensor 14 and improve the accuracy of the contour position information of the device to be charged collected by the distance sensor 14 .

It can be understood that the turntable 15 can be omitted. In order to improve the accuracy of the contour position information of the device to be charged collected by the distance sensor 14, more distance sensors 14 may be provided. The plurality of distance sensors 14 can completely and completely scan the device to be charged, thereby ensuring the accuracy of the contour position information of the device to be charged collected by the distance sensors 14 .

Referring to FIG. 3 , the wireless charging base 10 further includes a processor 16 . The processor 16 is electrically connected to the distance sensor 14, and the processor 16 is used to move the charging coil of the charging module 13 to the lower part of the charging coil of the device to be charged according to the contour position information.

Specifically, in this embodiment, the ultrasonic distance sensors at the four corners cooperate with each other to scan the four-sided contour position information of the device to be charged. The position coordinates of the to-be-charged device can be obtained according to the four-sided contour position information of the to-be-charged device. The target position coordinates to which the charging module moves are determined according to the position coordinates of the device to be charged.

It can be understood that the processor 16 may be disposed inside the wireless charging base 10 , or may exist independently of the wireless charging base 10 .

The distance sensor 14 may be electrically connected to a built-in processor. The distance sensor 14 sends the acquired contour position information of the device to be charged to the processor 16, and the processor 16 receives the contour position information to obtain the position coordinates of the device to be charged. The target position coordinates to which the charging module 13 moves are determined according to the position coordinates of the device to be charged, and the target position coordinates are fed back to the motion mechanism 12 .

In other embodiments, the distance sensor 14 may also be electrically connected to an external processor. The distance sensor 14 collects the contour position information, the wireless charging base 10 sends the contour position information to the processor, the processor receives the contour position information, obtains the position coordinates of the device to be charged, and determines the location to which the charging module 13 moves according to the position coordinates of the device to be charged. The target position coordinates are fed back to the wireless charging base 10 .

The outline of the mobile phone is extracted from the four-sided contour position information of the mobile phone, and a rectangle formed by the four-sided contour of the device to be charged is obtained. The coordinate position information of the center point of the rectangle is the coordinates of the charging coil of the mobile phone, and the coordinates of the charging coil of the mobile phone are is the target position coordinate.

The processor 16 is also connected to the first motor 1214 and the second motor 1224 by electrical signals, respectively. The motion mechanism moves the charging coil of the charging module to the target position coordinate.

The processor 16 controls the first motor 1214 to rotate according to the X-axis coordinate of the target position coordinate, and adjusts the rotational speed and the rotation time so that the second movement component 122 moves along the first screw rod 1211 until the second movement component 122 moves to the X of the target position. Coordinate location. The processor 16 controls the second motor 1224 to rotate according to the Y-axis coordinate of the target position coordinate, and adjusts the rotational speed and the rotation time to make the chassis 1221 move along the second screw rod 1222 until the charging module 13 moves to the Y-coordinate position of the target position, so as to finally The movement of the charging module 13 to the target position coordinate is realized, that is, the lower part of the device to be charged.

Here, the order in which the processor 16 controls the rotation of the first motor 1214 and the rotation of the second motor 1224 is not limited. It can be understood that the processor 16 may first control the rotation of the first motor 1214, and then control the rotation of the second motor 1224; or, the processor 16 may first control the rotation of the second motor 1224, and then control the rotation of the first motor 1214; or, the processor 16 The first motor 1214 and the second motor 1224 can be controlled to rotate at the same time.

The processor 16 is electrically connected to the charging module 13 . After the charging module 13 is sent to the target position coordinates, the processor 16 activates the charging module 13 to turn on the charging module 13, so that the charging module 13 starts to wirelessly charge and transmit signals to start wireless charging. Therefore, it is ensured that the charging coil of the charging module is aligned with the charging coil of the device to be charged, so that the charging module charges the mobile phone to achieve maximum transmission efficiency charging.

It can be understood that, in other embodiments, the opening of the charging module 13 by the wireless charging base 10 may also be controlled by an external switch device.

In the step of determining the coordinates of the target position to which the charging module 13 moves according to the position coordinates of the device to be charged, the processor 16 further includes acquiring the position coordinates of the device to be charged multiple times; analyzing and obtaining the coordinates of the target position according to the plurality of position coordinates .

When used for the first time, the processor 16 will move the target position coordinates and record the position coordinates of the device to be charged. After multiple uses, the processor 16 records the position coordinates of the device to be charged multiple times. The processor 16 analyzes and obtains the target position coordinates according to the plurality of position coordinates. The target position coordinates represent the position where the user prefers to place the mobile phone. The processor 16 can control the motion mechanism 12 to move the charging module 13 to the position where the user prefers to place the mobile phone.

The processor 16 can obtain the coordinates of the target position by analyzing the big data algorithm. For example, when the location coordinates of the device to be charged are within a certain spatial range and the number of occurrences reaches a threshold, the location coordinates of the device to be charged may be used as the target location coordinates.

Therefore, when the user uses the wireless charging base again, the charging module 13 is located at or near the position where the user prefers to place the mobile phone. Therefore, when the mobile phone is placed on the base body 11, the motion mechanism 12 can move the charging module 13 to the target position coordinates as soon as possible in a short period of time, reducing the time for the user to wait for the charging module 13 to move in place, and improving the wireless charging base. charging efficiency.

In other embodiments, the wireless charging base further includes a display screen. The display screen is electrically connected to the charging module 13 . The display screen is used to display the position and movement track of the charging module. By observing the display screen, the user can adjust the movement of the first movement component and the second movement component of the movement mechanism correspondingly according to the positional relationship between the position of the charging module displayed on the display screen and the target position coordinates. The second movement components cooperate with each other to move the charging module to the lower part of the device to be charged. Likewise, when the charging module moves below the device to be charged, the user can turn on the charging module through an external switch device, so that the charging module can charge the device to be charged.

The above-mentioned wireless charging base, by determining the position coordinates of the charging coil of the device to be charged, moves the charging coil of the charging module to directly below the charging coil of the device to be charged, so as to realize the most efficient coupling between the transmitting coil and the receiving coil, and improve the coupling of the electromagnetic field. It can improve the efficiency of electromagnetic energy transmission, reduce the power and heat of the transmitting end, improve the receiving efficiency of the device to be charged, reduce the temperature rise of the transmitting coil and the receiving coil, and improve the stability of the wireless charging base and the charging safety of the device to be charged.

According to the contour position information measured by the distance sensor, the outer contour position of the device to be charged is measured, and then the position of the charging coil of the device to be charged is determined, which can more efficiently determine the position of the charging coil. It is avoided that the transmitting coil takes a long time to traverse the position of the receiving coil, and that the transmitting coil generates excess heat during the traversing process, which affects the stability of the wireless charging base. Moreover, by quickly locating the position of the receiving coil, the transmitting coil can reach the best charging position as quickly as possible, which can reduce the problem of occupying the channel due to the misplacement of the device to be charged and repeated sending of power request commands, which can also be avoided. Foreign object detection FOD (Foreign Object Debris) occurs, which leads to charging failure or failure to charge.

In addition, the wireless charging base of this embodiment determines the plane position of the charging coil of the device to be charged by means of physical waves, which can avoid using software algorithms to process complex feedback signals and reduce the risk of algorithm processing errors. In addition, the distance sensor does not need to communicate with the receiving device and the transmitting device, and does not need to occupy a communication channel, which saves the communication resources of the wireless charging base.

Therefore, the wireless charging base can realize wireless charging of multiple devices and indefinite positions, and can be used in desks, cars, restaurants, etc., which greatly facilitates the power supply of the device to be charged.

The present disclosure also provides a wireless charging base control method, please refer to FIG. 4 , the wireless charging base control method includes the following steps:

Step S1, collecting the contour position information of the device to be charged on the base of the wireless charging base.

In step S2, the charging module is moved below the device to be charged according to the contour position information.

The above-mentioned wireless charging base control method collects the contour position information of the device to be charged on the base body 11 . Then, according to the contour position information, the movement mechanism 12 can move the charging module to move below the device to be charged. Therefore, the charging coil of the charging module can be aligned with the charging coil of the device to be charged, so as to ensure the charging efficiency of the device to be charged by the wireless charging base.

Please refer to FIG. 5 and FIG. 6 , wherein, in step S2, the step of moving the charging module below the device to be charged according to the profile position information specifically includes:

In step S21, the position coordinates of the device to be charged are obtained according to the outline position information, and the target position coordinates to which the charging module moves are determined according to the position coordinates of the device to be charged. The contour position information further includes length information of each side of the contour of the device to be charged.

Step S22, controlling the charging module to move to the target position coordinates.

Wherein, step S21, the step of determining the coordinates of the target position to which the charging module moves according to the position coordinates of the device to be charged, specifically includes:

Step S211, obtaining the position coordinates of the device to be charged multiple times;

Step S212, analyzing and obtaining target position coordinates according to a plurality of the position coordinates.

Specifically, it can be understood that the target position coordinates can be obtained by using a big data analysis algorithm according to a plurality of the position coordinates. For example, when the location coordinates of the device to be charged are within a certain spatial range and the number of occurrences reaches a threshold, the location coordinates of the device to be charged may be used as the target location coordinates.

In step S212, the target position coordinates represent the position where the user prefers to place the device to be charged. When the user uses the wireless charging base again, the charging module is located at or near the position where the user prefers to place the device to be charged. Therefore, when the device to be charged is placed on the base body 11, the motion mechanism 12 can move the charging module to the target position coordinates as soon as possible in a short period of time, reduce the time for the user to wait for the charging module to move in place, and improve the wireless charging base. charging efficiency.

While the present disclosure has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is of description and illustration, and not of limitation. Since the invention can be embodied in many forms without departing from the spirit or spirit of the invention, it is to be understood that the above-described embodiments are not limited to any of the foregoing details, but are to be construed broadly within the spirit and scope defined by the appended claims Therefore, all changes and modifications that come within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (16)

1. A wireless charging base, comprising:

the base is used for bearing the device to be charged;

the movement mechanism is arranged in the seat body;

the charging module is movably arranged on the moving mechanism, and the moving mechanism drives the charging module to move; and

the plurality of distance sensors are arranged on the periphery of the base body and used for acquiring the contour position information of the device to be charged, and the moving mechanism enables the charging module to move to the position below the device to be charged according to the contour position information.

2. The wireless charging base according to claim 1, wherein the contour position information further includes a contour shape of the device to be charged and length information of each side of the contour.

3. The wireless charging base of claim 1, wherein the movement mechanism aligns a charging coil of the charging module with a charging coil of the device to be charged.

4. The wireless charging base of claim 1, wherein the movement mechanism comprises a first movement assembly and a second movement assembly, the second movement assembly is movably disposed on the first movement assembly, and the charging module is movably disposed on the second movement assembly.

5. The wireless charging base of claim 4, wherein the direction of movement of the second moving assembly on the first moving assembly is perpendicular to the direction of movement of the charging module on the second moving assembly.

6. The wireless charging base according to claim 4, wherein the first moving assembly comprises a first screw and a first baffle, the first screw is fixedly disposed on the base, the second moving assembly is movably disposed on the first screw, and the first baffle is disposed on one side of the first screw for blocking the second moving assembly.

7. The wireless charging base of claim 6, wherein the first moving assembly further comprises a first sliding block, the first sliding block is movably disposed on the first screw rod, the first sliding block is fixedly disposed on the first baffle, and the second moving assembly is fixedly disposed on the first sliding block.

8. The wireless charging base of claim 1, wherein the second moving assembly comprises a chassis for carrying a charging module, a second screw rod, and a second baffle, the chassis is movably disposed on the second screw rod, the second baffle is disposed on one side of the second screw rod for abutting against the chassis, and the rotation of the second screw rod causes the chassis to move along an axial direction of the second screw rod.

9. The wireless charging base of claim 8, wherein the second moving assembly further comprises a second sliding block, the second sliding block is disposed on one side of the chassis, and the chassis is movably connected to the second lead screw through the second sliding block.

10. The wireless charging base of claim 6, wherein the first motion assembly further comprises a first motor, the first motor being in driving connection with the first lead screw.

11. The wireless charging base of claim 8, wherein the second motion assembly further comprises a second motor, the second motor being in driving connection with the second lead screw.

12. The wireless charging base of claim 1, further comprising a plurality of rotating discs, wherein the distance sensor is rotatably disposed on the rotating discs, and the rotating discs rotate to drive the distance sensor to rotate.

13. The wireless charging base of claim 1, further comprising a processor electrically connected to the distance sensor, the processor configured to receive contour position information of the device to be charged and control the movement mechanism to move below the belt charging device.

14. A wireless charging base control method comprises the following steps:

collecting outline position information of a device to be charged on a base body of a wireless charging base;

and moving the charging module to the position below the device to be charged according to the contour position information.

15. The wireless charging base control method according to claim 14, wherein the contour position information further includes length information of each side of the contour of the device to be charged;

the step of moving the charging module to the position below the device to be charged according to the contour position information includes: calculating to obtain the position coordinates of a charging coil of the device to be charged according to the length information of each side edge, and determining the target position coordinates to which the charging module moves according to the position coordinates of the device to be charged;

and controlling the charging module to move to the target position coordinate.

16. The wireless charging base control method according to claim 15, wherein the step of obtaining position coordinates of the device to be charged according to the contour position information, and determining target position coordinates to which the charging module moves according to the position coordinates of the device to be charged comprises:

acquiring position coordinates of the device to be charged for multiple times;

and analyzing according to the position coordinates to obtain a target position coordinate.

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