CN214479849U - Wireless power receiving module, wireless charging device and wireless power receiving equipment - Google Patents

Abstract

The disclosure relates to a wireless power receiving module, a wireless charging device and a wireless power receiving device. The wireless power receiving module comprises a plurality of power receiving layers, wherein the power receiving layers are positioned on different planes; each power receiving layer is provided with a power receiving coil; a control unit electrically connected to the power receiving coil; the control section is configured to control start and stop of the power receiving coil. The wireless charging module can realize that a plurality of receiving coils acquire charging energy by arranging the receiving coils on the receiving layers on different planes, and can be suitable for high-power wireless charging.

Description

Wireless power receiving module, wireless charging device and wireless power receiving equipment

Technical Field

The present disclosure relates to the field of wireless charging, and in particular, to a wireless power receiving module, a wireless charging device, and a wireless power receiving apparatus.

Background

The wireless charging device is a device which is charged by adopting an electromagnetic induction principle, and the charging device and the device to be charged are in energy transmission through a magnetic field and are not connected through a wire, so that the wireless charging device is more convenient to use compared with the traditional charging device. Various mobile electronic devices such as mobile phones, tablets and the like have been widely used in daily life, and charging the mobile electronic devices becomes an indispensable thing in daily life. Wireless charging device need not carry the charging wire, does not have the vexation of accomodating, has become more multi-user's selection gradually.

With the more and more perfect functions of the mobile terminal, the more and more use scenes of the mobile terminal are provided, and in order to meet the use requirements of users and improve the standby time and the charging speed of the mobile terminal, a high-power charging technology is often adopted to charge the mobile terminal.

In the related art, a single coil is used as a receiving coil, so that the power which can be borne in the high-power charging technology is limited, the charging power is difficult to greatly improve, and the requirement of a user on higher-power charging cannot be met.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the present disclosure provides a wireless power receiving module, a wireless charging device, and a wireless power receiving apparatus.

According to a first aspect of the embodiments of the present disclosure, a wireless power receiving module is provided, which includes a plurality of power receiving layers, the plurality of power receiving layers being located on different planes; each power receiving layer is provided with a power receiving coil; a control unit electrically connected to the power receiving coil; the control part is configured to control start and stop of the power receiving coil.

In an embodiment, each of said power receiving layers is provided with one or more power receiving coils.

In an embodiment, the control means comprises one or more control units; the plurality of control units are configured to control different of the power receiving layers.

In one embodiment, a coil inductance of the power receiving coil close to the power receiving layer of the wireless charging module is less than or equal to a coil inductance of the power receiving coil far from the power receiving layer of the wireless charging module.

In an embodiment, the number of turns of the power receiving coil of the power receiving layer close to the wireless charging module is less than or equal to the number of turns of the power receiving coil of the power receiving layer far from the wireless charging module.

In one embodiment, the power receiving coils are insulated from each other.

In one embodiment, two adjacent power receiving layers are bonded to each other.

In one embodiment, the wireless power receiving module further comprises: a power supply part electrically connected with the control part; the temperature sensing component is arranged around the power supply component and is electrically connected with the control component; the control section is configured to control the start and stop of the power receiving coils of the different power receiving layers in accordance with the monitoring data of the temperature sensing section.

In one embodiment, the wireless power receiving module further comprises: the Bluetooth transmission element is electrically connected with the control part; the bluetooth transmission element is configured to communicate with a bluetooth transmission element of a wireless charging device.

According to a second aspect of the embodiments of the present disclosure, there is provided a wireless charging device including the wireless power receiving module of any one of the foregoing.

According to a third aspect of the embodiments of the present disclosure, there is provided a wireless power receiving apparatus including the wireless power receiving module of any one of the foregoing.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the wireless charging module can realize that a plurality of receiving coils acquire charging energy by arranging the receiving coils on the receiving layers on different planes, and can be suitable for high-power wireless charging. In addition, the power receiving coils are arranged on different planes, so that the area of the wireless charging module can be controlled, and the wireless charging module can be applied to various small electronic devices.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram illustrating a wireless power receiving module according to an exemplary embodiment.

Fig. 2 is a schematic side view of a wireless power receiving module according to an exemplary embodiment.

Fig. 3 is a schematic side view of a wireless power receiving module according to another exemplary embodiment.

FIG. 4 is a schematic diagram illustrating a configuration of a control component according to an exemplary embodiment.

Fig. 5 is a schematic structural diagram illustrating a control component according to another exemplary embodiment.

Fig. 6 is a schematic structural diagram of a wireless charging module according to another exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

With the increasing use scenes of mobile terminals, in order to meet different requirements of users, the types of mobile terminals are increasing, and the performance requirements of users on the mobile terminals are also increasing. For example, in the aspect of charging, the conventional manner of charging through a connection line requires a connection line and requires accurate connection of the connection line with a mobile terminal, which causes problems of connection line mismatch, unstable connection, port aging, and the like, and users leave the connection line during the outgoing process, resulting in certain invariance. Wireless charging then can be fine solve above problem, for the user provides certain convenience in the aspect of charging, the competitiveness of the mobile terminal who possesses wireless charging function also is bigger and bigger.

At present, users have higher requirements on the charging speed and the standby time of the mobile terminal, and more terminal equipment manufacturers begin to provide mobile terminals which can be suitable for high-power wireless charging in order to meet the requirements of the users. In order to be suitable for high-power wireless charging, the number of turns of the coil or the diameter of a coil wire can be increased, but for a single coil, the mode is still limited for improving the power of wireless charging, and the higher and higher requirements of users on wireless charging cannot be met.

To address the above technical problems, the present disclosure provides a wireless power receiving module, which can be suitable for high-power wireless charging. Fig. 1 is a schematic structural diagram illustrating a wireless power receiving module according to an exemplary embodiment. Fig. 2 is a schematic side view of a wireless power receiving module according to an exemplary embodiment. As shown in fig. 1, the wireless power receiving module of the present disclosure may include a plurality of power receiving layers 100, the power receiving layers 100 are located on different planes, and each power receiving layer 100 may further be provided with a power receiving coil. In the present disclosure, the wireless power receiving module may include two power receiving layers 100, for example, two power receiving layers, such as a first power receiving layer 101 and a second power receiving layer 102, and the first power receiving layer 101 and the second power receiving layer 102 may be parallel to each other.

In addition, in the embodiment of the present disclosure, the number of the power receiving layers 100 may be other, for example, three. Fig. 3 is a schematic side view illustrating a wireless power receiving module according to another exemplary embodiment, and as shown in fig. 3, the number of power receiving layers 100 of the present disclosure may be three, for example, a first power receiving layer 101, a second power receiving layer 102, and a third power receiving layer 103, and a power receiving coil is disposed on each power receiving layer 100.

In the embodiment of the present disclosure, the wireless powered device 500 may be an electronic device capable of being charged by a wireless charging technology, for example, may be a mobile terminal such as a mobile phone, a tablet, a portable notebook computer, or may be a wearable device such as a smart band.

For example, as shown in fig. 1, when the wireless power receiving apparatus 500 is a mobile phone, the wireless power receiving apparatus 500 may have a flat plate shape, one surface of the wireless power receiving apparatus 500 is a rear case, and the surface opposite to the rear case is a display surface of the wireless power receiving apparatus 500. Generally, in the wireless charging process, the wireless power receiving apparatus 500 is placed on the wireless charging apparatus 300 for charging, and the electromagnetic induction process occurs between the wireless charging module 301 and the wireless power receiving module of the wireless charging apparatus 300 to complete energy transfer, and usually the rear shell of the wireless power receiving apparatus 500 is in direct contact with the wireless charging apparatus 300. In the thickness direction of the wireless power receiving apparatus 500, the wireless power receiving module is disposed at a position close to the rear case of the wireless power receiving apparatus 500.

Through above-mentioned embodiment, this disclosed wireless module of charging through with the receiving coil setting in the receiving layer that is located different planes, can realize that a plurality of receiving coils acquire the charging energy, can be applicable to powerful wireless charging. In addition, the power receiving coils are arranged on different planes, so that the area of the wireless charging module can be controlled, and the wireless charging module can be applied to various small electronic devices.

In one embodiment, the first power receiving layer 101 may include one or more power receiving coils 110, and the second power receiving layer 102 may also include one or more power receiving coils 120. Schematically, as shown in fig. 2, the first power receiving layer 101 in the wireless power receiving apparatus 500 includes a first power receiving coil 110, and the second power receiving layer 102 includes a second power receiving coil 120. In the thickness direction of the wireless power receiving apparatus 500, the projection of the first power receiving coil 110 on the surface of the power receiving layer 100 and the projection of the second power receiving coil 120 on the surface of the power receiving layer 100 may be concentric circles. The outermost side of the first power receiving coil 110 is coated with an insulating material, and the outermost side of the second power receiving coil 120 is also coated with an insulating material, that is, the first power receiving coil 110 and the second power receiving coil 120 are insulated from each other, so as to avoid mutual interference. Also, since the first power receiving coil 110 and the second power receiving coil 120 are insulated from each other, the first power receiving coil 110 and the second power receiving coil 120 may be directly adhered together by an adhesive material such as a double-sided tape, so that the first power receiving coil 110 and the second power receiving coil 120 form a layered arrangement in the thickness direction of the wireless power receiving apparatus 500, for example, the first power receiving coil 110 is disposed above the second power receiving coil 120.

FIG. 4 is a schematic diagram illustrating a configuration of a control component according to an exemplary embodiment. As shown in fig. 4, the wireless power receiving module further includes a control unit 200, and the control unit 200 is electrically connected to the power receiving coil and configured to control the start and stop of the power receiving coil.

In the embodiment of the present disclosure, the power receiving coil is a coil for receiving wireless charging energy, the wireless charging energy may be simply referred to as "energy", and the energy received by the power receiving coil includes, but is not limited to, energy in the form of electromagnetic waves, microwaves, and the like, and the present disclosure is not particularly limited. In some embodiments, when the wireless power receiving apparatus 500 performs wireless charging, the wireless power receiving apparatus 500 is placed on the wireless charging apparatus, and the power receiving coil of the wireless power receiving apparatus 500 corresponds to the charging coil of the wireless charging apparatus 300, the power receiving coil receives wireless charging energy transmitted by the charging coil, and outputs the wireless charging energy to the control unit 200 in the form of electric energy. The control part 200 may include one or more control units thereon, and a plurality of control units are configured to control different power receiving layers 100. Fig. 5 is a schematic structural diagram illustrating a control component according to another exemplary embodiment. As shown in fig. 5, the control part 200 may also include two control units, i.e., a first control unit 201 and a second control unit 202. In some embodiments, the first control unit 201 may be configured to form a capability transfer and a signal transfer with the first power receiving coil 110 of the first power receiving layer 101, and the second control unit 202 may be configured to form a capability transfer and a signal transfer with the second power receiving coil 120 of the second power receiving layer 102. When the wireless power receiving module of the present disclosure is disposed in an electronic device, the wireless power receiving module may be further configured to supply the obtained energy to the load 400 of the electronic device for system operation of the electronic device.

In the wireless charging process, generally, when the wireless power receiving module and the wireless charging module 301 want to approach each other, a small current is generated in the power receiving coil and the charging coil due to electromagnetic induction, and the wireless charging process can be started through the small current, so that the wireless charging module 301 and the wireless power receiving module are linked. After the wireless charging module 301 and the wireless power receiving module are connected, the wireless charging module 301 may send its own voltage/current capability information to the wireless power receiving module through modulation, the wireless power receiving module receives the voltage/current capability information of the wireless charging module 301 and transmits the voltage/current capability information to the control component 200, and the control component 200 identifies the voltage/current capability information of the wireless charging module 301 through demodulation, so that the control component 200 obtains the voltage/current capability information of the charger. In a specific implementation process, the control component may include various components such as a chip, a receiver, a modulation circuit, a demodulation circuit, a rectification circuit, and a microcontroller, which are used to complete a wireless charging process, and this disclosure is not described in detail. The chip has functions of converting, distributing, detecting and the like of input electric energy. The microcontroller is used for demodulating and communicating a signal, wherein the signal refers to a communication signal sent by the wireless charging equipment to the wireless power receiving module. The rectifying circuit is used for converting alternating current power signals received by the receiver into direct current power signals, namely converting alternating current received by the receiver into direct current. The modulation circuit is used for modulating a signal, wherein the signal refers to a communication signal sent by the wireless power receiving module to the wireless charging module, and the modulation circuit is used for modulating the power adjusting signal and sending the power sending signal to the wireless charging module after modulation is finished.

As shown in fig. 1, the first power receiving coil 110 and the second power receiving coil 120 correspond to the charging coil of the wireless charging module 301, and the distance between the second power receiving coil 120 and the charging coil is shorter than the distance between the first power receiving coil 110 and the charging coil, during the wireless charging process, the second power receiving coil 120 has stronger coupling capability to the wireless charging capability, and compared with the first power receiving coil 110, the second power receiving coil 120 can generate a smaller current first, and the current is transmitted to the control component 200, when the control component 200 recognizes the current signal and determines that the current signal is the charging signal, the control component establishes a connection with the wireless charging module 301, that is, the wireless charging process is started, and the charging process with high power is started.

Note that in some embodiments, the second power receiving layer 102 may also have a plurality of second power receiving coils 120. Fig. 6 is a schematic structural diagram of a wireless charging module according to another exemplary embodiment. As shown in fig. 6, three second power receiving coils 120 may be disposed on the second power receiving layer 102, the three second power receiving coils 120 may be arranged in parallel in the second power receiving layer 102, and the annular regions of the three power receiving coils do not overlap each other. It should be noted that, in practical operation, the three second power receiving coils 120 may also be arranged in a triangular or arbitrary arrangement in the second power receiving layer, which is not specifically limited in this disclosure.

In the embodiment of the present disclosure, when there are a plurality of second power receiving coils 120 of the second power receiving layer 102, in the wireless charging process, the current generated by the second power receiving coil having the strongest coupling effect with the charging coil of the wireless charging module 301 is the largest and fastest, and the control unit 200 may determine the start of the wireless charging process according to the fastest generated or largest current. Therefore, the specific position of the second power receiving coil 120 on the second power receiving layer 102 may not be limited, which is beneficial for the wireless power receiving module to be adapted to various wireless charging modules 301, and is not limited to only one.

As shown in fig. 6, in the embodiment of the present disclosure, the first power receiving layer 101 may also include a plurality of first power receiving coils 110, for example, three power receiving coils. The three first power receiving coils 110 may be arranged in parallel in the first power receiving layer 101, and the annular regions of the three power receiving coils do not overlap each other. It should be noted that, in practical operation, the three first power receiving coils 110 may also be arranged in a triangular or arbitrary arrangement in the second power receiving layer, which is not specifically limited in this disclosure.

In the embodiment of the present disclosure, during the wireless charging process, the second power receiving coil 120 of the second power receiving layer 102 may first generate an induced current and then start the wireless charging process. The control unit 200 may be configured to activate the second power receiving coil 120 for energy transmission, and when the energy acquired by the control unit 200 can exceed the set energy threshold, the control unit 200 controls the first power receiving coil 110 to start energy transmission. In the wireless charging technology, in order to improve the charging power and efficiency, two schemes need to be adopted: one is that under the condition of keeping the voltage unchanged, the current of the wireless charging signal is increased, thereby improving the charging power; the other is to increase the input voltage to achieve power increase while keeping the current constant. In a specific implementation, the control unit 200 may be configured to activate the first power receiving coil 110 for receiving energy when the charging voltage reaches the voltage threshold, or the control unit 200 may be configured to activate the first power receiving coil 110 for receiving energy when the charging current reaches the current threshold according to different schemes. As shown in fig. 1 and fig. 6, the first power receiving coil 110 of the first power receiving layer 101 is disposed above the second power receiving coil 120 of the second power receiving layer 102, that is, when the wireless power receiving apparatus 500 is placed at or close to the wireless charging apparatus 300 for wireless charging, the distance between the second power receiving coil 120 of the second power receiving layer 102 and the wireless charging module 301 is smaller than the distance between the first power receiving coil 110 of the first power receiving layer 101 and the wireless charging module 301. Due to the arrangement, in the wireless charging process, the starting and the closing of the power receiving coils of different power receiving layers 100 can be flexibly adjusted according to different charging powers in the charging process, so that the interference caused by the simultaneous starting of a plurality of power receiving coils can be avoided when the requirement of high-power wireless charging is met. And, in electronic equipment's use, can use various different wireless charging devices, not all wireless charging devices can all carry out high-power charging, and this disclosed setting can make wireless power receiving module can adapt the wireless module of charging of multiple different charging power, has increased the competitiveness of product.

In the embodiment of the present disclosure, the coil inductance of the power receiving coil close to the power receiving layer of the wireless charging module is set to be less than or equal to the coil inductance of the power receiving coil far from the power receiving layer of the wireless charging module. For example, the coil inductance of the first power receiving coil 110 may be set to be larger than the coil inductance of the second power receiving coil 120. The energy that different coil inductance can obtain is different, and the power receiving coil that coil inductance is big can obtain the energy that is greater than the power receiving coil that coil inductance is less in the charging process. Such an arrangement may further optimize the adjustment of the control component 200 of the wireless charging module of the present disclosure to the activation and deactivation of different power receiving coils during the wireless charging process.

In general, the coil inductance of the power receiving coil is determined by the number of turns of the power receiving coil and the diameter of the power receiving coil wire. In the embodiment of the present disclosure, the number of turns of the power receiving coil of the power receiving layer 100 close to the wireless charging module may be set to be less than or equal to the number of turns of the power receiving coil of the power receiving layer far from the wireless charging module. For example, the number of turns of the coil of the first power receiving coil 110 may be set to be greater than that of the coil of the second power receiving coil 120. In manufacturing, generally, for the same wireless power receiving module, the power receiving coils included in the same wireless power receiving module are manufactured in the same production line, and the diameters of the coil wires are the same if the coil wires are made of the same material. In the present disclosure, the number of turns of the coil of the first power receiving coil 110 is set to be greater than the number of turns of the coil of the second power receiving coil 120, so that the coil inductance of the first power receiving coil 110 is greater than the coil inductance of the second power receiving coil 120, and such a setting is more convenient in production and manufacturing, and facilitates optimization of a production process. That is, when the power receiving coil is produced, the coil wire may be wound several times based on the number of winding turns of the second power receiving coil 120, for example, the number of winding turns may be half or one.

In the embodiment of the present disclosure, the power receiving layer 100 may also be provided in more layers, for example, three or four layers, in each of which a power receiving coil is provided. The coil inductance or the number of turns of the power receiving coil of each layer may be specifically set according to the distance from each layer of the power receiving layer to the wireless charging module 301 in the wireless charging state. For example, the coil inductance of the power receiving coil at the farthest end from the wireless charging module 301 may be set to be the largest, and the coil inductances of the power receiving coils of the remaining power receiving layers may be sequentially decreased, so that the coil inductance of the power receiving coil of the power receiving layer closest to the wireless charging module 301 is the lowest. It should be noted that the present disclosure is not limited to this, and the coil inductance of the power receiving coil of a certain power receiving layer 100 may be set to be larger than the coil inductance of the power receiving module of the power receiving layer closest to the wireless charging module 301.

In some embodiments, the number of turns of the power receiving coil at the farthest end from the wireless charging module 301 may be set to be the largest, and the number of turns of the power receiving coils of the rest power receiving layers are sequentially decreased, so that the number of turns of the power receiving coil of the power receiving layer closest to the wireless charging module 301 is the lowest. It should be noted that the present disclosure is not limited to this, and the number of turns of the coil of the power receiving coil of a certain layer of power receiving layer 100 may be set to be greater than the number of turns of the coil of the power receiving module of a layer of power receiving layer closest to the wireless charging module 301.

In the embodiment of the disclosure, the plurality of power receiving coils are arranged in an insulating manner, so that the power receiving coils can be prevented from interfering with each other, and the power receiving coils of different power receiving layers can be directly stacked on each other. Note that, in the present disclosure, different power receiving layers 100 are used to illustrate the concept that a plurality of power receiving coils are disposed in different planes, and the power receiving layer 100 is not limited to a specific structural arrangement. For example, a plurality of power receiving coils located on the same plane may form the same power receiving layer 100, and when there is one power receiving coil, the plane where the power receiving coil is located is the power receiving layer. In the present disclosure, two adjacent power receiving layers 100 are bonded to each other, that is, the power receiving coils of two adjacent power receiving layers 100 are bonded to each other. For example, the insulating material of the outermost layer of the power receiving coil may be provided as a bondable material, which makes the manufacturing process simpler and can be realized by stacking a plurality of power receiving coils.

In an embodiment of the present disclosure, the wireless power receiving module may further include: a power supply part electrically connected to the control part 200; the temperature sensing part is arranged around the power supply part and is electrically connected with the control part; the control section 200 is configured to control the start and stop of the power receiving coils of the different power receiving layers according to the monitoring data of the temperature sensing section. The temperature sensing component is arranged around the battery and used for collecting the temperature value around the battery, and the temperature value collected by the temperature sensing component can be considered as the temperature value of the heat released by the battery. The temperature value that can set up to the temperature sensing part and will gather is converted into the signal transmission to control unit 200, and the temperature value that control unit 200 obtained is greater than preset high temperature threshold value, for example when the temperature value is greater than 80 ℃, control unit 200 can be configured to and close first powered coil 110, closes the powered coil that received energy is great promptly, can avoid like this that battery temperature further risees and lead to the damage of battery itself or other components and parts because of the high temperature leads to. By turning off the power receiving coil with larger received energy, the temperature of the battery gradually decreases, and the control unit 200 obtains that the temperature value transmitted by the temperature sensing unit is lower than the low temperature threshold, for example, when the temperature is lower than 20 ℃, the control unit 200 may be configured to start the first power receiving coil 110 to continue the high power charging process. Due to the arrangement, the battery can be protected from overheating, the temperature of the battery and the temperature of the rear shell of the terminal are guaranteed not to be too high, the service life of the battery is prevented from being damaged, the temperature of the whole terminal is reduced, the charging efficiency, the charging freedom and the charging speed are guaranteed in a balanced mode, and the user experience is improved. It should be noted that the preset temperature threshold may be a value set by a user, or may be a default empirical value, and is not specifically limited in this disclosure.

In the embodiment of the present disclosure, there is also a communication process in the wireless charging process, and there is also transmission of charging information between the wireless power receiving module and the wireless charging module 301 in the charging process. Generally, the charging information and the charging energy may be provided to be transferred through the same path. However, during the high-power charging, since the charging energy is large and there is a certain interference with the charging information, the control unit 200 may be configured to control the power receiving coil of one power receiving layer to perform communication transmission of the charging information and the power receiving coils of other power receiving layers to perform transmission of the charging energy during the high-power charging. For example, the second power receiving coil 120 may be configured to perform communication transmission of charging information, and the first power receiving coil performs transmission of charging energy, so that interference between the charging information and the charging energy may be avoided, the transmission stability of the charging energy may be damaged, and the transmission quality of the charging may be reduced.

In an embodiment of the present disclosure, the wireless power receiving module further includes: the Bluetooth transmission element is electrically connected with the control part; the bluetooth transmission element is configured to communicate with a bluetooth transmission element of the wireless charging device. For example, the wireless power receiving module further includes a processor and a bluetooth transmission element, the processor is connected to the microcontroller, the processor is connected to the bluetooth transmission element, the microcontroller communicates with the bluetooth transmission element through the processor, when the wireless power receiving module and the wireless charging module 301 are wirelessly charged in a magnetic resonance charging manner, that is, a charging protocol used between the wireless power receiving module and the wireless charging module 301 is an A4WP protocol, the receiver in the wireless power receiving module is further configured to send a communication signal to the wireless charging module 301 through the bluetooth transmission element, where the communication signal includes at least one of a power adjustment signal, a fast charging verification signal, and a charging capability acquisition signal.

In some embodiments, when the wireless power receiving module and the wireless charging module 301 are charged in a magnetic induction manner, that is, a charging protocol used between the wireless power receiving module and the wireless charging module 301 is QI protocol, the receiver of the wireless power receiving module is further configured to determine, as a communication coil, a power receiving coil with a highest coupling coefficient with the charging coil in the power receiving coils, and send the communication signal to the wireless charging device in the form of an analog signal through the communication coil. It should be noted that, when the wireless power receiving module is disposed in the wireless power receiving apparatus 500, the bluetooth transmission element may be a bluetooth transmission element of the wireless power receiving apparatus 500, and it is not necessary to separately dispose a bluetooth transmission element in the wireless power receiving module.

Based on the same conception, the embodiment of the disclosure also provides a wireless charging device. The wireless charging device of the present disclosure includes the wireless power receiving module in any one of the foregoing embodiments. The wireless charging device of this disclosure can also include wireless charging module, and wireless charging module can set up two many original papers wireless charging coil, through the receiving coil looks adaptation of a plurality of wireless charging coil and a plurality of receiving layer, can accomplish powerful wireless charging, is applicable to the electronic equipment that needs high-power wireless charging.

Based on the same concept, the embodiment of the present disclosure also provides a wireless power receiving device. The wireless power receiving device of the present disclosure includes the wireless power receiving module in any one of the foregoing embodiments. The wireless powered device can be a mobile terminal such as a mobile phone, a tablet, a portable notebook computer and the like, and can also be a wearable device such as an intelligent bracelet. The wireless power receiving apparatus of the present disclosure can be applied to high-power wireless charging.

It is understood that, in order to implement the above functions, the wireless charging apparatus provided in the embodiments of the present disclosure includes a hardware structure and/or a software module for performing each function. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in combination with the exemplary elements and algorithm steps disclosed in the disclosed embodiments. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (11)

1. A wireless power receiving module, comprising:

a plurality of power receiving layers, the plurality of power receiving layers being located on different planes;

each power receiving layer is provided with a power receiving coil;

a control unit electrically connected to the power receiving coil;

the control section is configured to control start and stop of the power receiving coil.

2. The wireless power module of claim 1,

each of the power receiving layers is provided with one or more power receiving coils.

3. The wireless power module of claim 1,

the control component comprises one or more control units;

the plurality of control units are configured to control different of the power receiving layers.

4. The wireless power module of claim 1,

the coil inductance of the power receiving coil of the power receiving layer close to the wireless charging module is less than or equal to the coil inductance of the power receiving coil of the power receiving layer far away from the wireless charging module.

5. The wireless power module of claim 4,

the number of turns of the coil of the power receiving layer close to the wireless charging module is smaller than or equal to the number of turns of the coil of the power receiving layer far away from the wireless charging module.

6. The wireless power module of claim 1,

the plurality of power receiving coils are insulated from each other.

7. The wireless power module of claim 1,

two adjacent power receiving layers are bonded to each other.

8. The wireless power module of claim 1, further comprising:

a power supply part electrically connected with the control part; and

the temperature sensing component is arranged around the power supply component and is electrically connected with the control component;

the control section is configured to control the start and stop of the power receiving coils of the different power receiving layers in accordance with the monitoring data of the temperature sensing section.

9. The wireless power module of claim 1, further comprising:

the Bluetooth transmission element is electrically connected with the control part;

the bluetooth transmission element is configured to communicate with a bluetooth transmission element of a wireless charging device.

10. A wireless charging device, comprising:

the wireless power receiving module of any one of claims 1 to 9.

11. A wireless powered device, comprising:

the wireless power receiving module of any one of claims 1 to 9.

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