Wireless charging module, wireless charging device and wireless charging control method

Abstract

The application discloses a wireless charging module, a wireless charging device and a wireless charging control method, and belongs to the technical field of wireless charging. The wireless charging module comprises a first supporting piece, a second supporting piece which is arranged opposite to the first supporting piece, a detection assembly which is arranged on one side of the second supporting piece facing the first supporting piece and is used for detecting charging signals in a preset distance range in real time, and a charging coil assembly which is arranged on one side of the first supporting piece facing the detection assembly and has a power greater than that of the detection assembly. A controller is electrically connected with the detection assembly and the charging coil assembly respectively, and is used for controlling the start and stop of the charging coil assembly according to the charging signals. The application can have lower energy consumption and power loss, so that the cost of wireless charging can be lower.

Description

Technical Field

[0001] This invention relates to the field of wireless charging technology, and in particular to a wireless charging module, a wireless charging device, and a wireless charging control method. Background Technology

[0002] Wireless charging technology is widely used in charging electronic products, and wireless chargers are common charging devices in daily life. Wireless chargers utilize the principle of electromagnetic induction, generating current through electromagnetic induction between the primary and secondary coils, thereby enabling the transfer of energy within a spatial range.

[0003] In the prior art, a wireless charger includes a housing, a circuit board, and a wireless charging module located inside the housing. The wireless charging module is electrically connected to the circuit board and includes a charging coil. The outer surface of the housing has a charging pad facing the charging coil. When an electronic device to be charged is placed on the charging pad, the charging coil wirelessly charges the electronic device.

[0004] However, in existing wireless chargers, the charging coil needs to be constantly energized in order to enable immediate charging when an electronic device is placed on the charging pad. This results in the charging coil consuming energy even when the wireless charger is not in use, leading to higher power loss and increased cost of wireless charging. Summary of the Invention

[0005] The purpose of this invention is to provide a wireless charging module, a wireless charging device, and a wireless charging control method, which have low energy consumption and power loss, thereby reducing the cost of wireless charging.

[0006] Based on the above concept, the technical solution adopted by this invention is as follows:

[0007] Wireless charging module, including:

[0008] First support component;

[0009] The second support member is disposed opposite to the first support member;

[0010] A detection component is disposed on the side of the second support member facing the first support member, and the detection component is used to detect charging signals within a preset distance range in real time;

[0011] A charging coil assembly is disposed on the side of the first support member facing the detection assembly, and the power of the charging coil assembly is greater than the power of the detection assembly;

[0012] The controller is electrically connected to the detection component and the charging coil component respectively, and the controller is used to control the start and stop of the charging coil component according to the charging signal.

[0013] Optionally, the detection component includes at least two detection coils, each of which is electrically connected to the controller.

[0014] Optionally, at least two detection coils include a first detection coil and a second detection coil, wherein the winding direction of the first detection coil from the inside out is opposite to that of the second detection coil from the inside out, and the winding direction is along the edge of the detection assembly pointing towards the center, and a plurality of first turns of the first detection coil and a plurality of second turns of the second detection coil are arranged alternately.

[0015] Optionally, the first intersection area of ​​the first detection coil and the second detection coil has a spacer, and the spacer is located between the first detection coil and the second detection coil in the thickness direction of the wireless charging module.

[0016] Optionally, the second support member has at least two first mounting slots, each corresponding to one of the at least two detection coils, and the detection coils are embedded in their corresponding first mounting slots.

[0017] Optionally, the charging coil assembly includes at least two charging coils, each of which is electrically connected to the controller.

[0018] Optionally, at least two charging coils include a first charging coil and a second charging coil, wherein the winding direction of the first charging coil from the inside out is opposite to that of the second charging coil from the inside out, and the first charging coil is wound in a direction pointing towards the center along the edge of the charging coil assembly, and a plurality of third turns of the first charging coil and a plurality of fourth turns of the second charging coil are arranged alternately.

[0019] Optionally, the first charging coil and the second charging coil are symmetrically distributed about the central axis of the charging coil assembly.

[0020] Optionally, the first support member has at least two second mounting slots, each corresponding to at least two charging coils, and the charging coils are embedded in their corresponding second mounting slots.

[0021] Optionally, it further includes an insulating component, the insulating component comprising a pressure-sensitive adhesive layer and an insulating adhesive layer stacked together, the first support member and the second support member being bonded together by the pressure-sensitive adhesive layer, the insulating adhesive layer being located on the side of the pressure-sensitive adhesive layer facing the first support member, and the insulating adhesive layer comprising a plurality of insulating adhesives spaced apart along the length direction of the first support member.

[0022] Optionally, the detection component is used to detect charging signals within a preset distance range in real time, which includes the detection component receiving electromagnetic waves within the preset distance range in real time via magnetic resonance, wherein the preset distance is 10 centimeters.

[0023] Wireless charging devices, including the wireless charging module mentioned above.

[0024] The wireless charging control method, applied to the aforementioned wireless charging module, includes the following steps:

[0025] S1. The detection component detects in real time whether there is a charging signal within a preset distance range. If yes, proceed to step S2; otherwise, proceed to step S5.

[0026] S2. The detection component generates a charging command based on the charging signal, sends the charging command to the controller, and executes step S3.

[0027] S3. The controller controls the charging coil assembly to start according to the charging command and executes step S4;

[0028] S4. The detection component periodically detects whether there is a charging signal within a preset distance range. If yes, it continues to detect; if no, it executes step S5.

[0029] S5. The detection component sends an idle command to the controller and executes step S6;

[0030] S6. The controller controls the charging coil assembly to shut down.

[0031] The beneficial effects of this invention are:

[0032] The wireless charging module, wireless charging device, and wireless charging control method provided by this invention include a detection component on the side surface of the second support member facing the first support member. The detection component can detect the charging signal within a preset distance range in real time, allowing the controller to control the start and stop of the charging coil component based on the charging signal. This enables the charging coil component to turn on when an electronic device is present within the preset distance range and turn off when no electronic device is present. Since the power of the detection component is less than the power of the charging coil component, the wireless charging module can have lower energy consumption and power loss when unloaded, thereby reducing the cost of wireless charging.

[0033] Furthermore, with the cooperation of the detection components, controller, and charging coil components, the electronic products to be charged do not need to be in contact with the wireless charging module. Wireless charging can be started as long as there is a certain distance between them. This allows wireless charging to break free from the constraints of charging location to a certain extent, making wireless charging more convenient and intelligent. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the wireless charging module provided in an embodiment of the present invention;

[0035] Figure 2 This is a front view of the wireless charging module provided in an embodiment of the present invention;

[0036] Figure 3 This is an exploded view of the wireless charging module provided in an embodiment of the present invention. Figure 1 ;

[0037] Figure 4 This is an exploded view of the wireless charging module provided in an embodiment of the present invention. Figure 2 ;

[0038] Figure 5 This is a cross-sectional schematic diagram of the wireless charging module provided in an embodiment of the present invention;

[0039] Figure 6 This is the present invention. Figure 5 The enlarged view at point A is shown below;

[0040] Figure 7 This is a schematic diagram of the structure of the first support member provided in an embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the structure of the charging coil assembly provided in an embodiment of the present invention;

[0042] Figure 9 This is an assembly diagram of the first support member and the charging coil assembly provided in an embodiment of the present invention;

[0043] Figure 10 This is a schematic diagram of the structure of the second support member provided in an embodiment of the present invention;

[0044] Figure 11 This is a schematic diagram of the structure of the detection component provided in an embodiment of the present invention;

[0045] Figure 12 This is an assembly diagram of the second support component and the detection component provided in an embodiment of the present invention;

[0046] Figure 13 This is a schematic diagram of the structure of some wireless charging modules provided in the embodiments of the present invention;

[0047] Figure 14 This is a flowchart of the wireless charging control method provided in an embodiment of the present invention.

[0048] In the picture:

[0049] 1. First support member; 11. Second mounting slot; 111. Third sub-slot; 112. Fourth sub-slot; 2. Second support member; 21. First mounting slot; 211. First sub-slot; 212. Second sub-slot; 3. Detection assembly; 31. Detection coil; 311. First detection coil; 3111. First turn; 312. Second detection coil; 3121. Second turn; 30. First cross area; 4. Charging coil assembly; 41. Charging coil; 411. First charging coil; 4111. Third turn; 412. Second charging coil; 4121. Fourth turn; 40. Second cross area; 5. Insulation assembly; 51. Pressure-sensitive adhesive layer; 52. Insulating adhesive layer; 521. Insulating adhesive; 53. Separator layer; 531. Separator; 10. Lead wire. Detailed Implementation

[0050] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0051] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0054] Example 1

[0055] This embodiment provides a wireless charging module that has low energy consumption and power loss, thereby reducing the cost of wireless charging.

[0056] like Figures 1 to 3 As shown, the wireless charging module includes a first support 1, a second support 2, a detection component 3, a charging coil component 4, and a controller.

[0057] In this embodiment, the first support member 1 and the second support member 2 are arranged opposite to each other. Both the first support member 1 and the second support member 2 are plate-shaped, and are arranged parallel to each other and connected. In this embodiment, both the first support member 1 and the second support member 2 are rectangular plates.

[0058] The detection component 3 is disposed between the first support member 1 and the second support member 2. Specifically, the detection component 3 is disposed on the side of the second support member 2 facing the first support member 1, and the detection component 3 is used to detect charging signals within a preset distance range in real time. In this embodiment, the detection component 3 can be used to detect whether a charging signal exists within the preset distance range, and the charging signal is a signal emitted by the device to be charged. The charging coil assembly 4 is disposed between the first support member 1 and the detection component 3, that is, the charging coil assembly 4 is disposed on the side of the first support member 1 facing the detection component 3, and the power of the charging coil assembly 4 is greater than the power of the detection component 3.

[0059] The controller is electrically connected to the detection component 3 and the charging coil component 4, respectively. The controller is used to acquire the charging signal detected by the detection component 3 and control the starting and stopping of the charging coil component 4 according to the charging signal. The specific structure and working principle of the controller in this embodiment are the same as those in the prior art. It is only necessary to implement the above functions, such as the chips in the prior art. This embodiment does not limit this.

[0060] During use, the wireless charging module provided in this embodiment operates with the charging coil assembly 4 in a closed state. The detection assembly 3 continuously monitors the presence of a charging signal within a preset distance range. When a charging signal is detected within this range, a charging command is generated. The detection assembly 3 can actively send a charging command to the controller, or the controller can actively acquire the charging command generated by the detection assembly 3. The controller then activates the charging coil assembly 4 based on the charging command to charge the electronic device. During charging, the detection assembly 3 continues to monitor the charging signal within the preset distance range. When charging is complete and the user moves the electronic device to a distance exceeding the preset distance range from the detection assembly 3, the detection assembly 3 can no longer detect the charging signal. In this case, the detection assembly 3 can send an idle command to the controller. The controller then activates the charging coil assembly 4 based on the idle command, while the detection assembly 3 continues to monitor the presence of a charging signal within the preset distance range. In some embodiments, the detection assembly 3's real-time detection of the charging signal within the preset distance range includes receiving electromagnetic waves emitted by the electronic device being charged within the preset distance range via magnetic resonance. In some embodiments, the preset distance is 10 centimeters.

[0061] The wireless charging module provided in this embodiment has a detection component 3 on the side surface of the second support member 2 facing the first support member 1. The detection component 3 can detect the charging signal within a preset distance range in real time, so that the controller can control the start and stop of the charging coil assembly 4 according to the charging signal. This allows the charging coil assembly 4 to be turned on when there is an electronic device within the preset distance range and turned off when there is no electronic device within the preset distance range. Since the power of the detection component 3 is less than the power of the charging coil assembly 4, the wireless charging module can have lower energy consumption and power loss when unloaded, thereby reducing the cost of wireless charging.

[0062] Furthermore, with the cooperation of the detection component 3, the controller, and the charging coil component 4, the electronic product to be charged does not need to be in contact with the wireless charging module. Wireless charging can be started as long as there is a certain distance between them. This allows wireless charging to break free from the constraints of charging location to a certain extent, making wireless charging more convenient and intelligent.

[0063] Optionally, such as Figure 4 As shown, the detection component 3 includes at least two detection coils 31, each of which is electrically connected to the controller. In this embodiment, the detection component 3 includes two detection coils 31. Therefore, the detection component 3 in this embodiment has a multi-coil structure to meet the requirements of magnetic resonance imaging. Please refer to... Figure 11 The detection component 3 is an axisymmetric structure with the X-axis as the axis of symmetry and an axisymmetric structure with the Y-axis as the axis of symmetry.

[0064] Furthermore, such as Figure 11 As shown, at least two detection coils 31 include a first detection coil 311 and a second detection coil 312. The winding direction of the first detection coil 311 from the inside out is opposite to the winding direction of the second detection coil 312 from the inside out. Figure 11 In this embodiment, the first detection coil 311 is wound clockwise from the inside out, and the second detection coil 312 is wound counterclockwise from the inside out. Specifically, "from the inside out" refers to the inner coil to the outer coil. Furthermore, the first detection coil 311 includes multiple first turns 3111, where a turn can be understood as a coil segment, and one coil turn is one turn. The second detection coil 312 includes multiple second turns 3121, arranged along the edge of the detection component 3 towards the center. The multiple first turns 3111 of the first detection coil 311 and the multiple second turns 3121 of the second detection coil 312 are arranged alternately to achieve a better magnetic resonance effect.

[0065] In this embodiment, the first detection coil 311 and the second detection coil 312 have multiple first intersection regions 30, in Figure 11 In the wireless charging module, the first detection coil 311 has two first turns 3111, the second detection coil 312 has two second turns 3121, and the first detection coil 3111 and the second detection coil 312 have three first intersection areas 30. Each first intersection area 30 of the first detection coil 311 and the second detection coil 312 has a spacer. In the thickness direction of the wireless charging module, the spacer is located between the first detection coil 311 and the second detection coil 312 to separate the first detection coil 311 and the second detection coil 312, prevent the temperature at the first intersection area 30 from being too high, and also prevent the first detection coil 311 and the second detection coil 312 from being short-circuited.

[0066] Optionally, such as Figure 10 and Figure 12 As shown, the second support member 2 has at least two first mounting slots 21, each corresponding to at least two detection coils 31. The detection coils 31 are embedded in their corresponding first mounting slots 21. The first mounting slots 21 limit the movement of the detection coils 31 and facilitate heat dissipation, improving their heat dissipation efficiency. In some embodiments, the first mounting slots 21 may include a first sub-slot 211 and a second sub-slot 212. The first sub-slot 211 accommodates the first detection coil 311, and the second sub-slot 212 accommodates the second detection coil 312. The arrangement of the first sub-slots 211 and the second sub-slot 212 is the same as the arrangement of the first detection coil 311 and the second detection coil 312, and will not be described in detail here. It should be noted that at the intersection of the first detection coil 311 and the second detection coil 312, the first sub-slot 211 and the second sub-slot 212 are connected.

[0067] In this embodiment, the spacer is fixed to the second support member 2, specifically to the groove wall of the first mounting groove 21, so as to transfer heat to the second support member 21.

[0068] Optionally, such as Figure 4 As shown, the charging coil assembly 4 includes at least two charging coils 41, each of which is electrically connected to the controller. In this embodiment, the charging coil assembly 4 includes two charging coils 41. Therefore, the charging coil assembly 4 in this embodiment has a multi-coil structure to meet high-power charging requirements. Please refer to... Figure 8 The charging coil assembly 4 is an axisymmetric structure with the X-axis as its axis of symmetry and also an axisymmetric structure with the Y-axis as its axis of symmetry. In this embodiment, at least two charging coils 41 have the same number of turns, and the number of turns of the charging coil assembly 4 is greater than the number of turns of the detection assembly 3, and as... Figure 6 As shown, the wire used in the charging coil 41 is thicker than the wire used in the detection coil 31, which makes the charging coil assembly 4 have higher charging power, while the power of the detection assembly 3 is less than the power of the charging coil assembly 4.

[0069] Furthermore, such as Figure 8 As shown, at least two charging coils 41 include a first charging coil 411 and a second charging coil 412. The winding direction of the first charging coil 411 from the inside out is opposite to the winding direction of the second charging coil 412 from the inside out. Figure 8 In this configuration, the first charging coil 411 is wound clockwise from the inside out, while the second charging coil 412 is wound counterclockwise from the inside out. Furthermore, the first charging coil 411 includes multiple third turns 4111 (a turn can be understood as a coil segment, with one loop of coil constituting one turn), and the second charging coil 412 includes multiple fourth turns 4121, arranged alternately along the edge of the charging coil assembly 4 towards the center.

[0070] Optionally, the first charging coil 411 and the second charging coil 412 have a plurality of second intersection regions 40, in Figure 8In the wireless charging module, the first charging coil 411 has two third turns 4111, the second charging coil 412 has two fourth turns 4121, and the first charging coil 4111 and the second charging coil 412 have five second cross regions 40. Each second cross region 40 of the first charging coil 411 and the second charging coil 412 has a spacer. In the thickness direction of the wireless charging module, the spacer is located between the first charging coil 411 and the second charging coil 412 to separate the first charging coil 411 and the second charging coil 412, prevent the temperature at the second cross region 40 from being too high, and also prevent the first charging coil 411 and the second charging coil 412 from being short-circuited.

[0071] In this embodiment, the first charging coil 411 and the second charging coil 412 are symmetrically distributed about the central axis through which the charging coil assembly 4 passes through the multiple second intersection regions 40. That is, the first charging coil 411 and the second charging coil 412 are symmetrically distributed about the central axis through which the charging coil assembly 4 passes through the multiple second intersection regions 40. Figure 8 The Y-axis (i.e., the longitudinal central axis) shown is symmetrically distributed. The Y-axis passes through multiple second intersection regions 40, and the first charging coil 411 and the second charging coil 412 are both non-axially symmetrical structures. It should be noted that the detection coil 31 and the charging coil 41 in this embodiment each have leads, which lead out of the wireless charging module.

[0072] For example, see Figure 7 and Figure 9 The first support member 1 has at least two second mounting slots 11, each corresponding to at least two charging coils 41. Each charging coil 41 is embedded in its corresponding second mounting slot 11. The second mounting slots 11 limit the position of the charging coil 41 and facilitate heat dissipation, thereby improving the heat dissipation efficiency of the charging coil 41. In some embodiments, such as Figure 7 As shown, the second mounting slot 11 may include a third sub-slot 111 and a fourth sub-slot 112. The third sub-slot 111 is used to accommodate the first charging coil 411, and the fourth sub-slot 112 is used to accommodate the second charging coil 412. The arrangement of the third sub-slot 111 and the fourth sub-slot 11 is the same as the arrangement of the first charging coil 411 and the second charging coil 412, and will not be described in detail here. It should be noted that at the intersection of the first charging coil 411 and the second charging coil 412, the third sub-slot 111 and the fourth sub-slot 11 are connected.

[0073] Optionally, such as Figure 3 or Figure 4As shown, the insulating component 5 includes a pressure-sensitive adhesive layer 51 and an insulating adhesive layer 52 stacked together. The first support member 1 and the second support member 2 are bonded together by the pressure-sensitive adhesive layer 51. The insulating adhesive layer 52 is located on the side of the pressure-sensitive adhesive layer 51 facing the first support member 1, and is used for detecting the insulation between the component 3 and the charging coil component 4. Figure 13 As shown, the insulating adhesive layer 52 includes a plurality of insulating adhesive bodies 521 spaced apart along the length of the first support member 1, so that the first support member 1 and the second support member 2 can be bonded together by pressure-sensitive adhesive between adjacent insulating adhesive bodies 521. Since the detection coil 31 is located in the first mounting groove 21 and the charging coil 41 is located in the second mounting groove 11, the pressure-sensitive adhesive layer 51 can directly contact the surface of the first support member 1 facing the second support member 2 and the surface of the second support member 2 facing the first support member 1, thereby firmly bonding the first support member 1 and the second support member 2.

[0074] Furthermore, the insulating component 5 also includes an adhesive layer 53, which is disposed on the side of the second support member 2 facing the first support member 1. Specifically, the adhesive layer 53 is located between the second support member 2 and the pressure-sensitive adhesive layer 51, and is used to detect the insulation between the component 3 and the charging coil component 4, thereby improving the reliability of the insulation. For example, the adhesive layer 53 includes a plurality of adhesive bodies 531 spaced apart along the length direction of the second support member 2 to expose a portion of the pressure-sensitive adhesive layer 5.

[0075] It should be noted that the wireless charging module also includes other modules to cooperate with the above structure to realize the wireless charging function. For details, please refer to the prior art. This embodiment does not limit it.

[0076] Example 2

[0077] This embodiment provides a wireless charging device, which includes the wireless charging module described in Embodiment 1. The wireless charging device provided in this embodiment features low power consumption and high ease of use.

[0078] Wireless charging devices may also include other structures, such as support shells, heat dissipation modules, etc., as can be found in the prior art, and this embodiment does not limit them.

[0079] Example 3

[0080] This embodiment provides a wireless charging control method, applied to the wireless charging module described in Embodiment 1, such as... Figure 14 As shown, it includes the following steps:

[0081] S1. The detection component 3 detects in real time whether there is a charging signal within a preset distance range. If yes, then proceed to step S2; otherwise, proceed to step S5.

[0082] In step S1, the preset distance can be 10 centimeters, meaning that the electronic device being charged does not need to be in close contact with the wireless charging module to be charged. The charging signal can be the electromagnetic waves emitted by the electronic device being charged.

[0083] S2. The detection component 3 generates a charging command based on the charging signal, sends the charging command to the controller, and executes step S3.

[0084] After receiving electromagnetic waves emitted by the electronic device within a preset distance range, the detection component 3 generates a charging command based on the electromagnetic waves and sends the charging command to the controller. In this case, the detection component 3 includes not only a detection module but also a generation module and a sending module. In this embodiment, the controller can automatically obtain the charging command.

[0085] S3. The controller starts the charging coil assembly 4 according to the charging command and executes step S4.

[0086] When the controller receives a charging command, it indicates that there is an electronic device that needs to be charged. Therefore, it controls the charging coil assembly 4 to start wirelessly charging the electronic device.

[0087] S4. The detection component 3 periodically detects whether there is a charging signal within a preset distance range. If yes, it continues to detect; otherwise, it executes step S5.

[0088] During the charging process of the electronic device, in order to determine when the electronic device finishes charging, the detection component 3 needs to periodically detect whether there is a charging signal within a preset distance range. If a charging signal is present, the detection can continue without sending any instructions to the controller. If no charging signal is present, it indicates that charging has ended, and step S5 is executed. It should be noted that the detection period of the detection component 3 can be set according to actual needs, such as 2 seconds, 5 seconds, 1 minute, etc., and this embodiment does not limit this. By periodically detecting, on the one hand, it can prevent the charging coil component 4 from remaining in the start-up state when unloaded, and on the other hand, it can reduce the energy consumption of the detection component 3, which is beneficial to energy saving.

[0089] S5. The detection component 3 sends an idle command to the controller and executes step S6.

[0090] When the detection component 3 does not have a charging signal within a preset distance range, it generates an idle command and sends it to the controller.

[0091] S6, The controller shuts down the charging coil assembly 4.

[0092] When the controller receives an no-load command, it controls the charging coil assembly 4 to shut down. Afterwards, the control assembly continues to control the detection assembly 3 to continuously detect whether a charging signal exists within a preset distance range, thus continuing to execute step S1.

[0093] In the wireless charging control method provided in this embodiment, the detection component 3 can detect the charging signal within a preset distance range in real time, so that the controller can control the start and stop of the charging coil component 4 according to the charging signal. This allows the charging coil component 4 to be turned on when there is an electronic device within the preset distance range and turned off when there is no electronic device within the preset distance range. Since the power of the detection component 3 is less than the power of the charging coil component 4, the wireless charging module can have lower energy consumption and power loss when unloaded, thereby reducing the cost of wireless charging.

[0094] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wireless charging module, characterized in that, include: First support component (1); The second support member (2) is disposed opposite to the first support member (1); The detection component (3) is located on the side of the second support member (2) facing the first support member (1), and the detection component (3) receives the charging signal within a preset distance range in real time through magnetic resonance. The charging signal is the electromagnetic wave emitted by the electronic device to be charged. A charging coil assembly (4) is disposed on the side of the first support member (1) facing the detection assembly (3), and the power of the charging coil assembly (4) is greater than the power of the detection assembly (3); The controller is electrically connected to the detection component (3) and the charging coil component (4) respectively. The controller is used to control the start and stop of the charging coil component (4) according to the charging signal. When the charging coil component (4) is in the off state, the detection component (3) detects in real time whether the charging signal exists within the preset distance range. When the charging signal is detected within the preset distance range, the controller controls the charging coil component (4) to start. The detection component (3) includes at least two detection coils (31), each of which is electrically connected to the controller; At least two detection coils (31) include a first detection coil (311) and a second detection coil (312). The winding direction of the first detection coil (311) from the inside out is opposite to that of the second detection coil (312) from the inside out, and the winding direction is along the edge of the detection assembly (3) pointing towards the center. A plurality of first turns (3111) of the first detection coil (311) and a plurality of second turns (3121) of the second detection coil (312) are arranged alternately.

2. The wireless charging module according to claim 1, characterized in that, The first intersection area of ​​the first detection coil (311) and the second detection coil (312) has a spacer, and the spacer is located between the first detection coil (311) and the second detection coil (312) in the thickness direction of the wireless charging module.

3. The wireless charging module according to any one of claims 1 and 2, characterized in that, The second support member (2) has at least two first mounting slots (21), and the at least two first mounting slots (21) correspond one-to-one with at least two of the detection coils (31), and the detection coils (31) are embedded in the corresponding first mounting slots (21).

4. The wireless charging module according to any one of claims 1 and 2, characterized in that, The charging coil assembly (4) includes at least two charging coils (41), each of which is electrically connected to the controller.

5. The wireless charging module according to claim 4, characterized in that, At least two charging coils (41) include a first charging coil (411) and a second charging coil (412). The winding direction of the first charging coil (411) from the inside out is opposite to that of the second charging coil (412) from the inside out, and the winding direction is along the edge of the charging coil assembly (4) pointing towards the center. A plurality of third turns (4111) of the first charging coil (411) and a plurality of fourth turns (4121) of the second charging coil (412) are arranged alternately.

6. The wireless charging module according to claim 5, characterized in that, The first charging coil (411) and the second charging coil (412) are symmetrically distributed about the central axis of the charging coil assembly (4).

7. The wireless charging module according to claim 4, characterized in that, The first support member (1) has at least two second mounting slots (11), each of which corresponds to at least two charging coils (41), and the charging coils (41) are embedded in the corresponding second mounting slots (11).

8. The wireless charging module according to claim 1, characterized in that, It also includes an insulating component (5), which includes a pressure-sensitive adhesive layer (51) and an insulating adhesive layer (52) stacked together. The first support member (1) and the second support member (2) are bonded together by the pressure-sensitive adhesive layer (51). The insulating adhesive layer (52) is located on the side of the pressure-sensitive adhesive layer (51) facing the first support member (1), and the insulating adhesive layer (52) includes a plurality of insulating adhesives (521) spaced apart along the length direction of the first support member (1).

9. The wireless charging module according to claim 8, characterized in that, The preset distance is 10 centimeters.

10. A wireless charging device, characterized in that, Includes the wireless charging module as described in any one of claims 1-9.

11. A wireless charging control method, applied to the wireless charging module according to any one of claims 1-9, characterized in that, Includes the following steps: S1. The detection component (3) detects in real time whether there is a charging signal within a preset distance range. If yes, then step S2 is executed; otherwise, step S5 is executed. S2. The detection component (3) generates a charging command based on the charging signal, sends the charging command to the controller, and executes step S3. S3. The controller controls the charging coil assembly (4) to start according to the charging command and executes step S4; S4. The detection component (3) periodically detects whether there is a charging signal within a preset distance range. If yes, it continues to detect; if no, it executes step S5. S5. The detection component (3) sends an idle command to the controller and executes step S6; S6. The controller controls the charging coil assembly (4) to shut down.

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