Wireless charging device with inlay function

Abstract

A wireless charging device with an insertable function is designed to be inserted into a power supply socket and provide an output voltage for wirelessly charging electronic devices. The wireless charging device includes a housing, a charging module, and a wireless charging assembly. The charging module includes a power conversion circuit, a communication module, and a controller. The controller determines the required voltage of the electronic device based on a handshake signal provided by the communication module and adjusts the output voltage to meet the required voltage by controlling the power conversion circuit.

Description

Technical Field

[0001] The present invention relates to a wireless charging device, and in particular to a wireless charging device with an embedding function. Background Art

[0002] With the increasing emphasis on convenient charging for electronic devices, more and more electronic devices are using adapters to connect to mains outlets for charging. This is especially true for portable devices (such as, but not limited to, mobile phones and tablets). However, the disadvantage of using adapters to charge electronic devices is that the adapter connector often needs to match the connection port of the electronic device in order to be successfully plugged in and charged, which makes it inconvenient to use.

[0003] On the other hand, since electronic devices often require an adapter to charge, charging can be inconvenient when the adapter is unavailable or malfunctions. Furthermore, the path between the adapter and the electronic device often involves cables for transmitting power or signals. During charging, these cables are often placed haphazardly, creating a visually unsightly appearance. This is especially true if placed in a pedestrian path, creating a tripping hazard.

[0004] Furthermore, while more and more electronic devices now have Power Delivery (PD) functionality, they typically require a specific adapter for charging (meaning the adapter must also have PD functionality). Therefore, considering the above factors, there is currently no charging device that can charge electronic devices with PD functionality while also being user-friendly and aesthetically pleasing.

[0005] Therefore, how to design a wireless charging device with an embeddable function to charge electronic devices with power transmission functions while achieving the effects of ease of use and visual aesthetics is a major research topic that the creators of this case want to conduct. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a wireless charging device with an embedding function to overcome the problems of the prior art. Therefore, the wireless charging device of the present invention is used to be embedded in the power supply socket and wirelessly charge the electronic device. The wireless charging device includes a shell, a charging module and a wireless charging component. The shell is embedded in the power supply socket and includes a socket for plugging the power line. The charging module is coupled to the power line and includes a power conversion circuit, a communication module and a controller. The power conversion circuit receives an input voltage through the power line and converts the input voltage into an output voltage. The communication module is used to perform handshake communication Ch with the electronic device and provide a handshake signal. The controller couples the power conversion circuit and the communication module and receives the handshake signal. The wireless charging component includes a power coil, and the power coil is coupled to the power conversion circuit to wirelessly transmit the output voltage to the electronic device. The controller learns the required voltage of the electronic device based on the handshake signal and adjusts the output voltage to meet the required voltage by controlling the power conversion circuit.

[0007] In one embodiment, the communication module transmits data in a digital modulation manner to perform handshake communication with the electronic device.

[0008] In one embodiment, the digital modulation method is frequency shift modulation.

[0009] In one embodiment, the controller is a power delivery controller that complies with the USB power delivery specification.

[0010] In one embodiment, the communication module includes a communication antenna or a communication coil, and the communication antenna or the communication coil and the power coil are packaged into a wireless module.

[0011] In one embodiment, the wireless charging component is a receiving seat, the receiving seat is coupled to the housing, and the power coil is received on one side of the receiving seat.

[0012] In one embodiment, the shell includes a sliding member, and the accommodating seat is coupled to the sliding member; the sliding member is used to allow the accommodating seat to move outward or inward relative to the shell, and when the accommodating seat moves inward, the accommodating seat and the shell are engaged to form a closed body.

[0013] In one embodiment, the accommodating body is pivotally connected to the housing so that the accommodating body can be turned outward or retracted inward relative to the housing. When the accommodating body is retracted inward, the accommodating body and the housing are engaged to form a closed body.

[0014] In one embodiment, the wireless charging component is a supporting base, and the supporting base is coupled to the housing.

[0015] In one embodiment, the supporting base is pivotally connected to the housing so that the supporting base can be turned outward or retracted inward relative to the housing. When the supporting base is retracted inward, the supporting base and the housing are engaged to form a closed body.

[0016] In one embodiment, the wireless charging assembly includes: a charging body coupled to the charging module and accommodating a power coil; and a clamping assembly coupled to the charging body and used to clamp the electronic device.

[0017] In one embodiment, a wireless charging assembly includes: a charging body coupled to a charging module and accommodating a power coil; and an attachment coupled to the charging body and used to attach an electronic device.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a circuit block diagram of the wireless charging device with an embedding function according to the present invention;

[0020] Figure 2A This is a schematic diagram of a first embodiment of a coil packaging structure according to the present invention;

[0021] Figure 2B This is a schematic diagram of a second embodiment of a coil packaging structure according to the present invention;

[0022] Figure 2C This is a schematic diagram of a third embodiment of a coil packaging structure according to the present invention;

[0023] Figure 3A Schematic diagram of the structure of the first embodiment of the wireless charging device of the present invention;

[0024] Figure 3B 2 is a schematic structural diagram of a second embodiment of a wireless charging device according to the present invention;

[0025] Figure 4A 2 is a schematic structural diagram of a third embodiment of a wireless charging device according to the present invention;

[0026] Figure 4B 2 is a schematic structural diagram of a fourth embodiment of a wireless charging device according to the present invention;

[0027] Figure 5A is a schematic structural diagram of a fifth embodiment of a wireless charging device according to the present invention;

[0028] Figure 5B is a structural schematic diagram of a sixth embodiment of a wireless charging device according to the present invention;

[0029] Figure 6A is a structural schematic diagram of a sixth embodiment of a wireless charging device according to the present invention;

[0030] Figure 6B is a structural schematic diagram of a seventh embodiment of a wireless charging device according to the present invention;

[0031] Figure 6Cis a schematic structural diagram of an eighth embodiment of a wireless charging device according to the present invention; and

[0032] Figure 6D FIG. 4 is a structural diagram of a ninth embodiment of a wireless charging device according to the present invention.

[0033] Wherein, the reference numerals:

[0034] 1…Wireless charging device

[0035] 10…housing

[0036] 10-1…Sliding parts

[0037] 102…housing space

[0038] 104…Socket

[0039] 12…Charging module

[0040] 122…Power conversion circuit

[0041] 124…Communication module

[0042] 124-1…Transmission device

[0043] 126…Controller

[0044] 14…Wireless charging components

[0045] 14A, 14B, 14C, 14D ... accommodating seat

[0046] 14E, 14F… bearing seat

[0047] 14A-1, 14B-1…top surface

[0048] 14A-2, 14B-2...bottom

[0049] 14C-1, 14D-1…Inside surface

[0050] 14C-2, 14D-2…outer surface

[0051] 14A-3, 14B-3, 14C-3, 14D-3…accommodation space

[0052] 144…Encapsulation colloid

[0053] 146…Wireless module

[0054] 142…Power coil

[0055] 150...Charging unit

[0056] 152…Clamping assembly

[0057] 154…Attachments

[0058] 2…Electronic devices

[0059] 20…Communication module

[0060] 22…Receiving coil

[0061] 24…Controller

[0062] 26…Converter

[0063] 28…Internal load

[0064] 100...Power supply slot

[0065] L…Power Line

[0066] 200...Socket module

[0067] 202…Socket

[0068] Vin…input voltage

[0069] Vo…output voltage

[0070] Vw…working voltage

[0071] Ch…Handshake communication

[0072] Sh...Handshake signal

[0073] Sc…control signal

[0074] L1…first length

[0075] L2…Second length

[0076] A…Wall

[0077] T…Desktop DETAILED DESCRIPTION

[0078] The structural principle and working principle of the present invention are described in detail below with reference to the accompanying drawings:

[0079] See also Figure 1This is a circuit block diagram of a wireless charging device with an embedding function of the present invention. The wireless charging device 1 is used to be embedded in the power supply seat 100 and to wirelessly charge the electronic device 2. The power supply seat 100 can be a seat arranged on a vertical surface such as a wall, or a seat arranged on a horizontal surface such as a desktop, and the electronic device 2 can be a portable product (for example, but not limited to, mobile phones, tablets and other products). The wireless charging device 1 includes a shell 10, a charging module 12 and a wireless charging component 14, and the shell 10 is embedded in the power supply seat 100. The shell 10 includes a shell accommodating space 102 and a plug hole 104, and the shell accommodating space 102 accommodates the charging module 12 and the wireless charging component 14. The plug hole 104 is used to allow the power line L to penetrate and be plugged into the charging module 12, so that the charging module 12 receives the input voltage Vin provided by the power line L. The charging module 12 includes a power conversion circuit 122 , a communication module 124 , and a controller 126 . The power conversion circuit 122 receives an input voltage Vin via a power line L and converts the input voltage Vin into an output voltage Vo. The power conversion circuit 122 may be a switching converter (such as, but not limited to, a flyback converter).

[0080] The communication module 124 is used to perform handshake communication Ch with the communication module 20 of the electronic device 2 and provide a handshake signal Sh based on the content of the communication. The controller 126 couples the communication module 124 and the power conversion circuit 122, and obtains the power information and power demand of the electronic device 2 by receiving the handshake signal Sh, thereby controlling the power conversion circuit 122 to convert the input voltage Vin into the output voltage Vo through the control signal Sc. The wireless charging component 14 includes a power coil 142, and the power coil 142 is coupled to the output end of the power conversion circuit 122 and coupled to the receiving end coil 22 of the electronic device 2 to transmit the received output voltage Vo to the receiving end coil 22 of the electronic device 2 via wireless transmission to charge the electronic device 2.

[0081] Furthermore, the controller 126 of the wireless charging device 1 and the controller 24 of the electronic device 2 are power delivery (PD) controllers that comply with the USB Power Delivery (USB-PD) specification. After the wireless charging device 1 is started, the controller 126 controls the power conversion circuit 122 to convert the input voltage Vin into a default output voltage Vo. When the electronic device 2 is coupled to the wireless charging device 1 for charging, the controllers (126, 24) communicate power information to each other through the handshake communication Ch of the communication modules (124, 20), and the controller 126 learns the required voltage of the electronic device through the handshake signal Sh provided by the communication module 124. Then, the controller 126 adjusts the output voltage Vo to meet the required voltage by controlling the power conversion circuit 122. The adjustment range of the output voltage Vo is, for example, but not limited to, between 3 and 20V, but is not limited thereto. The receiving end coil 22 of the electronic device 2 receives the 20V output voltage Vo, and the controller 24 of the electronic device 2 controls the converter 26 to convert the 20V output voltage Vo into the working voltage Vw required for the operation of the internal load 28.

[0082] For example, assume that the required voltage of electronic device 2 is 20V. After the wireless charging device 1 is activated, the controller 126 controls the power conversion circuit 122 to convert the input voltage Vin into a default output voltage Vo of 5V. Then, when the electronic device 2 is coupled to the wireless charging device 1 for charging, the controllers (126, 24) communicate power information to each other through the handshake communication Ch of the communication modules (124, 20). The controller 126 learns that the electronic device requires a required voltage of 20V through the handshake signal Sh provided by the communication module 124. Then, the controller 126 controls the power conversion circuit 122 to adjust the output voltage Vo from 5V to 20V to meet the requirements of the electronic device 2.

[0083] See also Figure 2A Schematic diagram of the first embodiment of the coil packaging structure of the present invention, Figure 2B This is a schematic diagram of the second embodiment of the coil packaging structure of the present invention. Figure 2C This is a schematic diagram of the third embodiment of the coil packaging structure of the present invention, and is also shown in FIG. Figure 1. The communication module 124 includes a transmission device 124-1, and the device for sending and receiving signals can be a communication antenna or a communication coil. The communication module 124 can transmit wireless signals through a communication antenna (for example, but not limited to, a microstrip antenna) or a communication coil. Preferably, the transmission method of the communication module 124 is to perform handshake communication Ch with the electronic device in a digital modulation method. Among them, the digital modulation method can use one of amplitude shift modulation (ASK), frequency shift modulation (FSK), phase shift modulation (PSK), orthogonal amplitude modulation (QAM) and orthogonal frequency division multiplexing modulation (OFDM). In one embodiment of the present invention, frequency shift modulation (FSK) is used as the transmission of wireless signals, which is a better transmission method for the wireless charging device 1 of the present invention, which can enable the controller (126, 24) to more accurately determine whether the wireless digital signal being communicated is "0" or "1".

[0084] exist Figure 2A In the embodiment, the transmission device 124-1 can be, for example but not limited to, a communication coil. The communication coil is wound into a rectangular shape, and the power coil 142 is wound into a circular shape. The power coil 142 is disposed within the communication coil, and the power coil 142 and the communication coil are packaged together by a packaging colloid 144 (for example but not limited to resin) to form a modular wireless module 146. Figure 2B In the embodiment, the transmission device 124-1 can be, for example but not limited to, a microstrip antenna. The microstrip antenna is arranged in a rectangular shape, and the power coil 142 is wound in a circular shape. The power coil 142 is arranged outside the communication coil, and the power coil 142 and the communication coil are packaged together by a packaging gel 144 (for example but not limited to resin) to form a modular wireless module 146. Figure 2C In the embodiment, the power coil 142 may include three groups of coils 142-1 to 142-3, and the three groups of coils 142-1 to 142-3 are encapsulated together by an encapsulating colloid 144 (for example, but not limited to, resin). Figures 2A to 2C The features of the embodiments can be used in conjunction with each other and will not be described in detail here. By forming the wireless module 146 with the transmission device 124 - 1 and the power coil 142 , the manufacturing process of the wireless charging device 1 can be made more convenient.

[0085] See also Figure 3A This is a schematic diagram of the structure of the first embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1-2C. In this embodiment, the wireless charging device 1 is embedded in the power supply seat groove 100 of the wall A. The wireless charging component 14 is a receiving seat 14A, and the receiving seat 14A is fixedly connected to the shell 10. The power coil 142 is accommodated on one side of the receiving seat 14A, which can be accommodated on the top surface 14A-1 (that is, the side that is higher relative to the ground) or the bottom surface 14A-2 (that is, the side that is lower relative to the ground). Preferably, the first length L1 of the top surface 14A-1 may be shorter than the second length L2 of the bottom surface 14A-2. In this way, the electronic device 2 will not easily slip when placed in the receiving space 14A-3 of the receiving seat 14A. Among them, the receiving space 14A-3 is opened obliquely.

[0086] See also Figure 3B This is a schematic diagram of the structure of the second embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 3A . Figure 3B The implementation method and Figure 3A The difference is that the housing 10 is pivotally connected to the housing 10 and can be flipped outward or retracted inward relative to the housing 10. When the housing 14B is flipped outward, the electronic device 2 can be placed in the housing space 14B-3 of the housing 14B. When the housing 14B is retracted inward, the housing 10 and the housing 10 engage to form a closed unit. This design creates a concealed wireless charging device 1, thereby achieving the functions of dust prevention and aesthetically pleasing wall surface A.

[0087] See also Figure 4A This is a schematic diagram of the structure of the third embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 3B . Figure 4A The implementation method and Figure 3A The difference is that the accommodating space 14C-3 of the accommodating body 14C is vertically opened, and the accommodating body 14C is fixedly connected to the housing 10. The power coil 142 is also accommodated on one side of the accommodating body 14C, and can be accommodated on the inner side surface 14C-1 (i.e., the side relative to the wall A) or the outer side surface 14C-2 (i.e., the side relative to the wall A). Preferably, the first length L1 of the inner side surface 14C-1 can also be shorter than the second length L2 of the outer side surface 14C-2. In this way, the electronic device 2 is less likely to slip when placed in the accommodating space 14C-3 of the accommodating body 14C.

[0088] See also Figure 4B This is a schematic diagram of the structure of the fourth embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 4A . Figure 4B The implementation method and Figure 4AThe difference is that the housing 10 includes a sliding member 10-1, and the receiving base 14D is coupled to the sliding member 10-1. The sliding member 10-1 allows the receiving base 14D to move outward relative to the housing 10 to enable charging, or to move inward to retract. When the receiving base 14D moves outward, the electronic device 2 can be placed in the receiving space 14D-3 of the receiving base 14D. When the receiving base 14D retracts inward, the receiving base 14D and the housing 10 are engaged to form a closed body. This design forms a concealed wireless charging device 1, thereby achieving the functions of dust prevention and enhancing the aesthetics of the wall A.

[0089] See also Figure 5A is a structural diagram of a fifth embodiment of a wireless charging device according to the present invention, Figure 5B This is a schematic diagram of the structure of the sixth embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 4B . Figure 5A The implementation method and Figure 3A The difference is that the wireless charging component 14 is a supporting base 14E, and the supporting base 14E is coupled to the housing 10. The supporting base 14E is fixed to the housing 10, and the power coil 142 is accommodated in the supporting base 14E. Figure 5B The implementation method and Figure 5A The difference lies in that the support base 14F is pivotally connected to the housing 10 and can be flipped outward or retracted inward relative to the housing 10. When the support base 14F is flipped outward, the electronic device 2 can be placed on the support base 14F. When the support base 14F is retracted inward, the support base 14F and the housing 10 are interlocked to form a closed body. This design creates a concealed wireless charging device 1, thereby achieving the functions of dust prevention and aesthetically pleasing wall surface A.

[0090] See also Figure 6A This is a schematic diagram of the structure of the sixth embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 5B . The wireless charging component 14 includes a charging body 150 and a clamping component 152. The charging body 150 is coupled to the charging module 12, and the charging body 150 accommodates the power coil 142. The clamping component 152 is coupled to the charging body 150 and is used to clamp the electronic device 2. There can be at least one clamping component 152. When there is only one clamping component 152, the charging body 150 may include a clamping component (not shown) to clamp the electronic device 2 together with the clamping component 152. When there are more than two clamping components 152, more than two clamping components 152 clamp the electronic device 2 together (such as Figure 6A After the electronic device 2 is clamped by the clamping assembly 152 , the wireless charging device 1 can provide an output voltage Vo via the power coil 142 to wirelessly charge the electronic device 2 .

[0091] See also Figure 6B FIG is a structural diagram of the seventh embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with FIG. Figures 1 to 6A The wireless charging component 14 includes a charging body 150 and an attachment 154. The charging body 150 is coupled to the charging module 12 and houses the power coil 142. The attachment 154 is coupled to the charging body 150 and is used to attach the electronic device 2. Specifically, the attachment 154 can attach the electronic device 2 through magnetism, vacuum suction, or material adhesion to fix the electronic device 2. After the electronic device 2 is attached to the attachment 154, the wireless charging device 1 can provide an output voltage Vo to the electronic device 2 through the power coil 142 to wirelessly charge the electronic device 2.

[0092] See also Figure 6C This is a schematic diagram of the structure of the eighth embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with Figures 1 to 6B . Figure 6B and Figure 6C The difference is that the electronic device 2 can be an autonomous mobile electronic product (for example, but not limited to, a sweeping robot). The receiving coil 22 and the power coil 142 are also connected using the attachment 154, thereby achieving the effect of no contact and waterproof.

[0093] See also Figure 6D FIG. 9 is a schematic diagram of the structure of the ninth embodiment of the wireless charging device of the present invention, and is also referred to in conjunction with FIG. Figures 1 to 6C . The power supply socket 100 is a socket provided on the desktop T, and the socket module 200 is installed on the power supply socket 100. The socket module 200 includes a plurality of sockets 202 and a wireless charging device 1, and the top of the wireless charging device 1 is a wireless charging component 14. The power coil 142 is provided in the wireless charging component 14, and the electronic device 2 can be placed on the wireless charging component 14 for wireless charging. Among them, the wireless charging device 1 can be modular in design, so that the wireless charging device 1 can be easily exchanged with the position of the socket 202 in the socket module 200. Thereby, the effect of increasing the configuration convenience of the device can be achieved. Among them, the above-mentioned Figures 3A to 6D The embodiments can be used in combination with each other according to actual needs.

[0094] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A wireless charging device with an embedding function, used to be embedded in a power supply socket and wirelessly charge an electronic device, characterized in that: The wireless charging device includes: A housing, adapted to be embedded in the power socket, and comprising a socket for plugging a power cord; A charging module, coupled to the power line, and comprising: a power conversion circuit receiving an input voltage through the power line and converting the input voltage into an output voltage; a communication module, configured to perform a handshake communication with the electronic device and provide a handshake signal; and a controller coupled to the power conversion circuit and the communication module and receiving the handshake signal; and a wireless charging assembly comprising a power coil coupled to the power conversion circuit to wirelessly transmit the output voltage to the electronic device; In which, the communication module includes a communication antenna or a communication coil, and the communication antenna or the communication coil and the power coil are packaged into a wireless module; the controller is a power transmission controller that complies with a USB power transmission specification; after the wireless charging device is started, the controller controls the power conversion circuit to convert the input voltage into the default output voltage, and the controller uses the handshake communication of the communication module to enable each other to know the power information, and the controller learns the required voltage of the electronic device through the handshake signal provided by the communication module, and the controller controls the power conversion circuit to adjust the default output voltage to the required voltage according to the required voltage.

2. The wireless charging device according to claim 1, wherein: The communication module transmits the handshake communication with the electronic device in a digital modulation manner.

3. The wireless charging device according to claim 2, wherein: The digital modulation method is a frequency shift modulation.

4. The wireless charging device according to claim 1, wherein: The wireless charging component is a receiving seat coupled to the shell, and the power coil is received on one side of the receiving seat.

5. The wireless charging device according to claim 4, wherein: The shell includes a sliding member, and the accommodating seat is coupled to the sliding member; the sliding member is used to allow the accommodating seat to move outward or inward relative to the shell, and when the accommodating seat moves inward, the accommodating seat and the shell are embedded to form a closed body.

6. The wireless charging device according to claim 4, wherein: The accommodating seat is pivotally connected to the shell so that the accommodating seat can be turned outward or folded inward relative to the shell. When the accommodating seat is folded inward, the accommodating seat and the shell are embedded to form a closed body.

7. The wireless charging device according to claim 1, wherein: The wireless charging component is a supporting base, and the supporting base is coupled to the shell.

8. The wireless charging device according to claim 7, wherein: The supporting base is pivotally connected to the shell so that the supporting base can be turned outward or retracted inward relative to the shell. When the supporting base is retracted inward, the supporting base is engaged with the shell to form a closed body.

9. The wireless charging device according to claim 1, wherein: The wireless charging component includes: a charging body, coupled to the charging module and accommodating the power coil; and A clamping component is coupled to the charging body and is used to clamp the electronic device.

10. The wireless charging device according to claim 1, wherein: The wireless charging component includes: a charging body, coupled to the charging module and accommodating the power coil; and An attachment is coupled to the charging body and is used to attach the electronic device.

Images