Wireless charging transmitting device and toilet bowl

Abstract

The application relates to the technical field of wireless charging, and discloses a wireless charging transmitting device and a toilet bowl, which comprise a control panel, a coil control circuit, a transmitting coil and an annular permanent magnet array; the control panel is connected with the transmitting coil; the coil control circuit is connected with an external power supply; the bottom surface of the control panel is provided with the coil control circuit, and the front surface of the control panel is provided with the transmitting coil; the annular permanent magnet array is annularly arranged at the outermost side of the transmitting coil; since the wireless charging transmitting device is provided with the annular permanent magnet array, the annular permanent magnet array is annularly arranged at the outermost side of the transmitting coil and used for automatic adsorption and alignment with a magnetic ring of a charging device, compared with the prior art which depends on structure limiting and manual alignment, the wireless charging transmitting device finally realizes the effect that the user does not need to manually align the coil, the coil can be accurately coupled to avoid energy loss, and the rear end redundant space of a cover plate of the toilet bowl can be effectively utilized for installation.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and more particularly to a wireless charging transmitter and a toilet. Background Technology

[0002] In the process of large-scale application of wireless charging technology, the precise positioning of the charging coil has become a core bottleneck restricting performance and compatibility. Current mainstream solutions mainly rely on two methods to achieve coil matching: structural constraints or manual alignment by the user, but both have significant technical limitations.

[0003] When using a structural limiting design, the charger needs to use physical structures such as fixing grooves and clips to limit the placement of the device to ensure coil alignment. While this method simplifies operation, it severely reduces device compatibility—different brands and models of wireless charging devices have different sizes and coil positions, and the fixed limiting structure cannot adapt to diverse products, resulting in some devices failing to charge properly or only achieving low power output, making it difficult to meet the needs of scenarios where multiple devices share a charger.

[0004] While relying on manual coil alignment by the user avoids compatibility issues related to structural limitations, it faces the challenge of unstable coupling efficiency. Because users cannot accurately determine the coil position, manual placement easily leads to coil misalignment, causing a decrease in the coupling coefficient between the two coils and a significant reduction in power transmission efficiency. When the misalignment exceeds a critical value, the charging power is far below the industry-standard peak of 15W, not only prolonging charging time but also potentially causing device overheating due to increased energy loss, affecting charging safety and user experience. Utility Model Content

[0005] The purpose of this application is to provide a wireless charging transmitter and a toilet, which aims to solve the technical problem of energy loss caused by manually aligning the coil.

[0006] To achieve the above objectives, this application proposes a wireless charging transmitter, which includes: a control board, a coil control circuit, a transmitting coil, and a ring permanent magnet array.

[0007] The control board is connected to the transmitting coil; the coil control circuit is connected to an external power supply; the coil control circuit is placed on the bottom surface of the control board, and the transmitting coil is placed on the front surface of the control board; the annular permanent magnet array is placed around the outermost edge of the transmitting coil.

[0008] The control board is used to carry the coil control circuit, the transmitting coil, and the ring permanent magnet array;

[0009] The coil control circuit is used to convert the DC power from the external power source into a rapidly changing AC current to drive the transmitting coil.

[0010] The ring-shaped permanent magnet array is used for automatic adsorption and alignment with the magnetic ring of the charging device.

[0011] The transmitting coil is used to form a changing magnetic field in a preset space above itself after receiving the alternating current, and to couple with the charging coil of the charging device for wireless charging.

[0012] In one embodiment, the annular permanent magnet array includes: a plurality of arc-shaped magnets;

[0013] The control panel is a circular panel;

[0014] Each of the aforementioned arc-shaped magnets is continuously distributed around the outermost edge of the transmitting coil and the edge of the control board; however, no arc-shaped magnets are provided at the connection point between the transmitting coil and the coil control circuit.

[0015] In one embodiment, the coil control circuit includes: a motherboard, a single-coil control module, and a drive module;

[0016] The motherboard is connected to the external power supply and the single-coil control module respectively; the single-coil control module is also connected to the drive module;

[0017] The motherboard is used to output DC signals to the single-coil control module;

[0018] The single-coil control module is used to clamp the DC current into a target DC current and send it to the drive module;

[0019] The drive module is used to convert the target DC current into a rapidly changing AC current to drive the transmitting coil.

[0020] In one embodiment, the single-coil control module includes: a first MOSFET, a second MOSFET, a first resistor, and a second resistor;

[0021] The gate of the first MOSFET is connected to the second terminal of the first resistor and the first terminal of the second resistor, the drain of the first MOSFET is connected to the sixth terminal of the motherboard, and the source of the first MOSFET is connected to the first terminal of the first resistor and the source of the second MOSFET.

[0022] The drain of the second MOSFET is connected to the driving module;

[0023] The second end of the second resistor is connected to the first end of the motherboard.

[0024] In one embodiment, the driving module includes: a third MOSFET, a fourth MOSFET, a first capacitor, a second capacitor, a third resistor, a fourth resistor, a first breakdown diode, and a second breakdown diode;

[0025] The gate of the third MOS transistor is connected to the gate of the fourth MOS transistor, the second terminal of the third resistor, and the first terminal of the fourth resistor; the source of the third MOS transistor is connected to the source of the fourth MOS transistor and ground; the drain of the third MOS transistor is connected to the second terminal of the first capacitor.

[0026] The drain of the fourth MOS transistor is connected to the first terminal of the second capacitor, and the source of the fourth MOS transistor is grounded.

[0027] The first end of the third resistor is connected to an external functional polymer capacitor; the second end of the fourth resistor is grounded.

[0028] The first terminal of the first capacitor is connected to the cathode of the first breakdown diode and the first terminal of the transmitting coil; the second terminal of the second capacitor is connected to the cathode of the second breakdown diode and the second terminal of the transmitting coil.

[0029] The anode of the first breakdown diode is connected to the anode of the second breakdown diode.

[0030] In one embodiment, the coil control circuit further includes a detection module;

[0031] The detection module is connected to the single-coil control module, the drive module, the transmitting coil, and the motherboard;

[0032] The detection module is used to perform overcurrent detection on the AC current passing through the transmitting coil;

[0033] The detection module includes: a first chip, a second chip, a fifth to a twelfth resistor, and a third to a fifth capacitor;

[0034] The first and third terminals of the first chip are connected to the first terminals of the fourth and fifth capacitors, the second terminal of the first chip is connected to the first terminal of the fifth resistor, the fourth terminal of the first chip is connected to the first terminal of the sixth resistor, the fifth and sixth terminals of the first chip are connected to the first terminal of the third capacitor and the first and second terminals of the second chip, and the seventh and eighth terminals of the first chip are connected to the second terminal of the transmitting coil and the third and fourth terminals of the second chip.

[0035] The fifth terminal of the second chip is connected to the seventh and eighth terminals of the second chip, the first terminal of the seventh resistor, the second terminal of the ninth resistor, the second terminal of the fourth capacitor, and the second terminal of the fifth capacitor. The sixth terminal of the second chip is connected to the first terminal of the eighth resistor, and the seventh and eighth terminals of the second chip are connected to the second terminal of the ninth resistor.

[0036] The second terminals of the fifth and sixth resistors are grounded; the second terminal of the third capacitor is connected to the first terminal of the transmitting coil; the first terminal of the seventh resistor is connected to the sixth and seventh terminals of the motherboard; the second terminal of the eighth resistor is connected to the fourth terminal of the motherboard; the first terminal of the ninth resistor is connected to the second terminal of the motherboard.

[0037] The first terminals of the fourth and fifth capacitors are connected to the second terminal of the tenth resistor and the first terminal of the eleventh resistor; the first terminal of the tenth resistor is connected to the first terminal of the twelfth resistor and ground; the second terminal of the eleventh resistor is used to detect changes in the input current; the second terminal of the twelfth resistor is connected to the fifteenth terminal of the motherboard.

[0038] In one embodiment, the coil control circuit further includes: a communication module;

[0039] The communication module is connected to the external foreign object detection module, the transmitting coil, and the motherboard;

[0040] The communication module is used to convert the alternating current passing through the transmitting coil into a detection signal and transmit it to the external foreign object detection module;

[0041] The communication module includes: thirteenth to seventeenth resistors, third to fifth breakdown diodes, and sixth to eighth capacitors;

[0042] The first end of the thirteenth resistor is connected to the first end of the transmitting coil and the anode of the third breakdown diode; the second end of the thirteenth resistor is connected to the cathode of the fourth breakdown diode, the external foreign object detection module, and the anode of the fifth breakdown diode; the anode of the fourth breakdown diode is grounded; the cathode of the fifth breakdown diode is connected to the tenth end of the motherboard.

[0043] The cathode of the third breakdown diode is connected to the first terminal of the fourteenth resistor and the first terminal of the sixteenth resistor; the second terminal of the fourteenth resistor is connected to the first terminal of the fifteenth resistor and the first terminal of the sixth capacitor; the second terminal of the sixteenth resistor is connected to the first terminal of the seventh capacitor, the first terminal of the seventeenth resistor and the first terminal of the eighth capacitor; the second terminal of the seventh capacitor is connected to the second terminal of the seventeenth resistor and ground; the second terminal of the fifteenth resistor and the second terminal of the sixth capacitor are grounded; the second terminal of the eighth capacitor is connected to the thirteenth terminal of the motherboard.

[0044] In one embodiment, the coil control circuit further includes a coil temperature response module;

[0045] The coil temperature feedback module is connected to the fourteenth terminal of the main board;

[0046] The coil temperature feedback module is used to reflect the real-time temperature of the transmitting coil using a thermistor after receiving the temperature command from the motherboard.

[0047] The coil temperature response module includes an eighteenth resistor and a nineteenth resistor.

[0048] The first end of the eighteenth resistor and the first end of the nineteenth resistor are connected to the fourteenth terminal of the motherboard, and the second end of the eighteenth resistor and the second end of the nineteenth resistor are grounded.

[0049] In addition, to achieve the above objectives, this application also proposes a toilet that includes the wireless charging transmitter described above.

[0050] In one embodiment, the wireless charging transmitter is installed in the redundant space at the rear end of the toilet seat cover.

[0051] This application proposes a wireless charging transmitter and a toilet. The wireless charging transmitter includes: a control board, a coil control circuit, a transmitting coil, and a ring-shaped permanent magnet array; the control board is connected to the transmitting coil; the coil control circuit is connected to an external power source; the coil control circuit is placed on the bottom surface of the control board, and the transmitting coil is placed on the front surface of the control board; the ring-shaped permanent magnet array is placed around the outermost part of the transmitting coil; the control board is used to support the coil control circuit, the transmitting coil, and the ring-shaped permanent magnet array; the coil control circuit is used to convert the direct current from the external power source into a rapidly changing alternating current to drive the transmitting coil; the ring-shaped permanent magnet array is used to automatically attract and align with the magnetic ring of the charging device; the transmitting coil is used to form a changing magnetic field in a preset space above itself after receiving the alternating current, and couples with the charging coil of the charging device for wireless charging. Because the wireless charging transmitter of this application incorporates a ring-shaped permanent magnet array, which surrounds the outermost part of the transmitting coil and automatically aligns with the magnetic ring of the charging device, compared to existing solutions requiring manual coil alignment by the user, automatic alignment of the transmitting coil and the charging coil of the charging device can be achieved without manual operation, solving the problem of deviation that easily occurs during manual coil alignment. Furthermore, because the coil control circuit in the device can convert the DC power from the external power supply into a rapidly changing AC current to drive the transmitting coil, the transmitting coil can generate a changing magnetic field within a preset space above it after receiving the AC current. The automatic alignment achieved by the ring-shaped permanent magnet array ensures precise coupling between the transmitting coil and the charging coil of the charging device, avoiding manual alignment. The reduced coil coupling power transmission efficiency caused by alignment deviation solves the energy loss problem caused by manual coil alignment. Simultaneously, the control board can accommodate the coil control circuit, transmitting coil, and ring permanent magnet array, with the coil control circuit placed on the bottom and the transmitting coil on the front. This results in an integrated and compact device structure that can fit into the redundant space at the rear of the toilet seat, solving the problem of existing wireless charging devices struggling to utilize this space. Compared to existing technologies that rely on structural constraints (reducing compatibility) and manual alignment (energy loss), this ultimately achieves the effect of ensuring precise coil coupling without requiring manual coil alignment to avoid energy loss, while effectively utilizing the redundant space at the rear of the toilet seat for installation. Attached Figure Description

[0052] Figure 1 A schematic diagram of the modules of the first embodiment of the wireless charging transmitter proposed in this application;

[0053] Figure 2 This is a diagram of the permanent magnet array of the second embodiment of the wireless charging transmitter proposed in this application;

[0054] Figure 3This is a circuit connection diagram of the second embodiment of the wireless charging transmitter proposed in this application;

[0055] Figure 4 This is a physical drawing of an embodiment of the toilet proposed in this application.

[0056] Explanation of icon numbers:

[0057] 100 control board 260 Coil temperature response module 200 Coil control circuit Q1~Q4 First to fourth MOSFETs 300 transmitting coil C1~C16 Capacitors 1 through 16 400 Ring permanent magnet array U1~U2 First to second chips 210 motherboard R1~R20 The first to twentieth resistors 220 Single coil control module D1~D5 First to fifth breakdown diodes 230 driver module CN1 Connecting wire 240 Detection module 250 Communication module Detailed Implementation

[0058] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0060] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0061] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0062] Reference Figure 1 , Figure 1 This is a schematic diagram of the modules of the first embodiment of the wireless charging transmitter proposed in this application. Based on Figure 1 The first embodiment of the wireless charging transmitter of this application is presented.

[0063] The wireless charging transmitter includes: a control board 100, a coil control circuit 200, a transmitting coil 300, and a ring-shaped permanent magnet array 400; the control board 100 is connected to the transmitting coil 300; the coil control circuit 200 is connected to an external power source; the coil control circuit 200 is placed on the bottom surface of the control board 100, and the transmitting coil 300 is placed on the front surface of the control board 100; the ring-shaped permanent magnet array 400 is placed around the outermost edge of the transmitting coil 300.

[0064] It should be understood that the control board 100 serves as the base platform for supporting other components, and the coil control circuit 200 is placed on the bottom surface of the control board 100. This layout can make full use of space while avoiding interference between the coil control circuit 200 and other components.

[0065] It should be noted that the transmitting coil 300 is placed on the front of the control board 100, which facilitates electrical connection with the control board 100 and helps the transmitting coil 300 to form an effective changing magnetic field within the preset space.

[0066] It should be understood that the ring-shaped permanent magnet array 400 is placed around the outermost part of the transmitting coil 300. This ring-shaped layout can fully utilize its function of automatically adsorbing and aligning with the magnetic ring of the charging device.

[0067] The control board 100 is used to carry the coil control circuit 200, the transmitting coil 300, and the annular permanent magnet array 400.

[0068] It should be noted that the control board 100 plays a core supporting and management role in the entire wireless charging transmitter. It not only provides physical support for the coil control circuit 200, the transmitting coil 300, and the ring permanent magnet array 400, ensuring the stable installation of each component, but also coordinates the operation between the components.

[0069] The coil control circuit 200 is used to convert the direct current from the external power source into a rapidly changing alternating current to drive the transmitting coil 300.

[0070] It should be understood that the main task of the coil control circuit 200 is to convert the direct current input from the external power source into a rapidly changing alternating current. This is because the transmitting coil 300 requires alternating current to generate a changing magnetic field, while the external power source typically provides direct current, which cannot directly meet the operating requirements of the transmitting coil 300. Through the conversion by the coil control circuit 200, the transmitting coil 300 can obtain a suitable driving current, thereby forming a changing magnetic field in the preset space above it, providing the necessary conditions for wireless charging.

[0071] It should be noted that the preset space refers to the space within 8 to 10 mm above the transmitting coil 300, where a rapidly changing magnetic field is formed.

[0072] The ring-shaped permanent magnet array 400 is used for automatic adsorption and alignment with the magnetic ring of the charging device.

[0073] It should be noted that the main function of the ring permanent magnet array 400 is to automatically align with the magnetic ring of the charging device. During wireless charging, the relative position and angle between the charging device and the transmitting device affect the charging efficiency and effect. The ring permanent magnet array 400, through its own magnetism, can generate an attractive force with the magnetic ring on the charging device, causing the charging device to automatically attach to the appropriate position on the transmitting device and maintain alignment. This ensures good coupling between the transmitting coil 300 and the charging coil of the charging device, improving the efficiency and stability of wireless charging.

[0074] The transmitting coil 300 is used to form a changing magnetic field in a preset space above itself after receiving the alternating current, and to couple with the charging coil of the charging device for wireless charging.

[0075] It should be understood that after receiving the rapidly changing alternating current provided by the coil control circuit 200, the transmitting coil 300 will generate a changing magnetic field in a preset space above it according to the principle of electromagnetic induction. This changing magnetic field can penetrate non-magnetic media such as air. When the charging coil of the charging device is within this magnetic field range, an induced electromotive force will be generated in the charging coil, thereby generating an induced current, realizing the wireless transmission of electrical energy and charging the charging device.

[0076] This embodiment proposes a wireless charging transmitter. The wireless charging transmitter includes: a control board 100, a coil control circuit 200, a transmitting coil 300, and a ring permanent magnet array 400; the control board 100 is connected to the transmitting coil 300; the coil control circuit 200 is connected to an external power source; the coil control circuit 200 is placed on the bottom surface of the control board 100, and the transmitting coil 300 is placed on the front surface of the control board 100; the ring permanent magnet array 400 is placed around the outermost part of the transmitting coil 300; the control board 100 is used to support the coil control circuit 200, the transmitting coil 300, and the ring permanent magnet array 400; the coil control circuit 200 is used to convert the direct current from the external power source into a rapidly changing alternating current to drive the transmitting coil 300; the ring permanent magnet array 400 is used to automatically attract and align with the magnetic ring of the charging device; the transmitting coil 300 is used to form a changing magnetic field in a preset space above itself after receiving the alternating current, and couples with the charging coil of the charging device for wireless charging. Because the wireless charging transmitter of this application incorporates a ring-shaped permanent magnet array 400, which surrounds the outermost edge of the transmitting coil 300 and is used for automatic magnetic adsorption and alignment with the magnetic ring of the charging device, compared to existing solutions that require manual coil alignment by the user, automatic alignment of the transmitting coil 300 with the charging coil of the charging device can be achieved without manual operation, solving the problem of deviation that easily occurs during manual coil alignment. Furthermore, because the coil control circuit 200 in the device can convert the DC power from the external power source into a rapidly changing AC current to drive the transmitting coil 300, the transmitting coil 300 can form a variable current within a preset space above itself after receiving the AC current. The magnetic field is transformed, and the automatic alignment achieved by the ring permanent magnet array 400 ensures precise coupling between the transmitting coil 300 and the charging coil of the charging device, avoiding the decrease in coil coupling power transmission efficiency caused by manual alignment deviation, thus solving the energy efficiency loss problem caused by manual coil alignment; at the same time, the control board 100 can carry the coil control circuit 200, the transmitting coil 300 and the ring permanent magnet array 400, and the coil control circuit 200 is placed on the bottom surface of the control board 100 and the transmitting coil 300 is placed on the front surface of the control board 100, making the entire device structure integrated and compact; ultimately, it achieves precise coil coupling without the need for manual coil alignment by the user to avoid energy efficiency loss.

[0077] Reference Figure 2 and Figure 3 , Figure 2 This is a circuit connection diagram for a second embodiment of the wireless charging transmitter proposed in this application. Figure 3 This is a circuit connection diagram for a second embodiment of the wireless charging transmitter proposed in this application. Based on the first embodiment of the wireless charging transmitter described above, a second embodiment of the wireless charging transmitter of this application is proposed.

[0078] The annular permanent magnet array 400 includes: multiple arc-shaped magnets; the control board 100 is a circular plate; each of the arc-shaped magnets is continuously distributed around the outermost side of the transmitting coil 300 and the edge of the control board 100; and no arc-shaped magnets are provided at the connection between the transmitting coil 300 and the coil control circuit 200.

[0079] It should be noted that multiple arc-shaped permanent magnets of the same size form a circular array with an inner diameter of 50mm and an outer diameter of 55mm. Furthermore, due to the addition of the circular permanent magnet array 400, it automatically attaches and aligns with the magnetic ring of the charging device (positioning accuracy ±0.5mm), resulting in a coupling efficiency of ≥85% between the transmitting coil 300 and the device's charging coil, stably achieving a maximum charging power of 15W, representing an energy efficiency improvement of approximately 25% compared to non-magnetic charging.

[0080] The coil control circuit 200 includes: a main board 210, a single coil control module 220, and a drive module 230; the main board 210 is connected to the external power supply and the single coil control module 220 respectively; the single coil control module 220 is also connected to the drive module 230.

[0081] It should be understood that the motherboard 210 is model IP5568. The motherboard 210 connects to an external power supply, serving as the interface between the entire circuit and the external power source, responsible for receiving electrical energy from the external power supply. It also connects to the single-coil control module 220, transmitting the processed electrical signals to it, thus performing signal transmission and preliminary power processing. The single-coil control module 220 connects to the driver module 230. It receives signals from the motherboard 210, further processes the signals, and then transmits the processed electrical signals to the driver module 230, providing it with suitable input signals to achieve subsequent current conversion functions.

[0082] The motherboard 210 is used to output DC signals to the single-coil control module 220.

[0083] It should be noted that the motherboard 210, acting as a bridge between the coil control circuit 200 and the external power supply, first receives the DC power input from the external power source. During this process, the motherboard 210 may perform some basic processing on the input DC power, such as voltage regulation and filtering, to ensure stable power quality and reduce the impact of power fluctuations on subsequent circuits. The motherboard 210 then outputs the processed DC signal to the single-coil control module 220. This DC signal contains the basic power information required for the operation of subsequent circuits, providing the foundation for the normal operation of the single-coil control module 220.

[0084] The single-coil control module 220 is used to clamp the DC current into a target DC current and send it to the drive module 230.

[0085] It should be understood that after receiving the DC signal from the motherboard 210, the single-coil control module 220 clamps the DC signal. The clamping process adjusts the input DC signal to a specific voltage range, i.e., the target DC signal. Through clamping, the DC voltage input to the drive module 230 is ensured to be stable and meets the operating requirements of the drive module 230, preventing damage or disruption to its normal operation due to excessively high or low voltage. The single-coil control module 220 then transmits the clamped target DC signal to the drive module 230, providing it with suitable input power so that the drive module 230 can perform subsequent current conversion operations.

[0086] The drive module 230 is used to convert the target DC current into a rapidly changing AC current to drive the transmitting coil 300.

[0087] It should be noted that the drive module 230 is the key module in the coil control circuit 200 that realizes the final conversion of electrical energy. It receives the target DC power from the single-coil control module 220 and, using its own circuit structure and electronic components (such as switching transistors, capacitors, and inductors), converts the target DC power into a rapidly changing AC current through rapid switching actions and the oscillation characteristics of the circuit. The generated rapidly changing AC current is delivered to the transmitting coil 300, causing the transmitting coil 300 to generate a changing magnetic field, thereby realizing the energy transmission function of wireless charging. The performance of the drive module 230 directly affects the quality and stability of the AC current, and thus affects the efficiency and effect of wireless charging.

[0088] It should be understood that the first to eighteenth pins of the motherboard 210 are respectively: AUXDRV1 pin, UPGATE2 pin, DNGATE2 pin, UPGATE1 pin, DNGATE1 pin, VSYS pin, VSYS pin, VBUS pin, VIN pin, VCC pin, the eleventh and twelfth pins are interconnected through the fourteenth capacitor C14, the VDD pin, the NTC2 pin, the IGND pin, and the sixteenth to eighteenth pins are all grounded.

[0089] It should be noted that capacitors C9 to C13 are connected in parallel to form the input and output nodes of the circuit, with one end connected to the sixth terminal of the main board 210 and the other end grounded; connecting wire CN1 connects to the sixth terminal of the main board 210 and the twentieth resistor R20; one end of capacitor C15 is connected to the thirteenth terminal of the main board 210 and the other end grounded; one end of capacitor C16 is connected to the tenth terminal of the main board 210 and the other end grounded.

[0090] The single-coil control module 220 includes: a first MOSFET Q1, a second MOSFET Q2, a first resistor R1, and a second resistor R2.

[0091] It should be noted that the gate of the first MOSFET Q1 is connected to the second terminal of the first resistor R1 and the first terminal of the second resistor R2; the drain of the first MOSFET Q1 is connected to the sixth terminal of the motherboard 210; the source of the first MOSFET Q1 is connected to the first terminal of the first resistor R1 and the source of the second MOSFET Q2; the drain of the second MOSFET Q2 is connected to the driving module 230; and the second terminal of the second resistor R2 is connected to the first terminal of the motherboard 210.

[0092] The driving module 230 includes: a third MOSFET Q3, a fourth MOSFET Q4, a first capacitor C1, a second capacitor C2, a third resistor R3, a fourth resistor R4, a first breakdown diode D1, and a second breakdown diode D2.

[0093] It should be understood that the gate of the third MOSFET Q3 is connected to the gate of the fourth MOSFET Q4, the second terminal of the third resistor R3, and the first terminal of the fourth resistor R4; the source of the third MOSFET Q3 is connected to the source of the fourth MOSFET Q4 and ground; the drain of the third MOSFET Q3 is connected to the second terminal of the first capacitor C1; the drain of the fourth MOSFET Q4 is connected to the first terminal of the second capacitor C2; the source of the fourth MOSFET Q4 is grounded; the first terminal of the third resistor R3 is connected to an external functional polymer capacitor; the second terminal of the fourth resistor R4 is grounded; the first terminal of the first capacitor C1 is connected to the cathode of the first breakdown diode D1 and the first terminal of the transmitting coil 300; the second terminal of the second capacitor C2 is connected to the cathode of the second breakdown diode D2 and the second terminal of the transmitting coil 300; the anode of the first breakdown diode D1 is connected to the anode of the second breakdown diode D2.

[0094] The coil control circuit 200 further includes a detection module 240; the detection module 240 is connected to the single coil control module 220, the drive module 230, the transmitting coil 300 and the main board 210; the detection module 240 is used to perform overcurrent detection on the AC current passing through the transmitting coil 300.

[0095] It should be noted that the detection module 240 monitors the AC current passing through the transmitting coil 300 in real time. Since the magnitude of the AC current through the transmitting coil 300 varies with factors such as the state of the charging device and the charging power during normal operation, continuous monitoring is necessary to ensure the current remains within a safe range. The detection module 240 has a pre-set overcurrent threshold, which is determined based on factors such as the rated current of the transmitting coil 300, the circuit's withstand capability, and safety standards. When the monitored AC current value exceeds this threshold, an overcurrent condition is identified. Once an overcurrent is detected, the detection module 240 quickly feeds back the overcurrent signal to the single-coil control module 220, the drive module 230, and the mainboard 210. The single-coil control module 220 can adjust the clamping voltage according to the feedback signal to limit the electrical energy input to the drive module 230; the drive module 230 can take corresponding measures, such as reducing the switching frequency and reducing the output current, to reduce the current in the transmitting coil 300; the main board 210 can also perform overall coordination and control according to the feedback information, such as cutting off the external power input, thereby protecting the entire coil control circuit 200 and the transmitting coil 300 from overcurrent damage.

[0096] The detection module 240 includes: a first chip U1, a second chip U2, a fifth resistor R5 to a twelfth resistor R12, and a third capacitor C3 to a fifth capacitor C5.

[0097] It should be understood that the first chip U1 and the second chip U2 are model number RUH30D20H. The first and third terminals of the first chip U1 are connected to the first terminals of the fourth capacitor C4 and the fifth capacitor C5. The second terminal of the first chip U1 is connected to the first terminal of the fifth resistor R5. The fourth terminal of the first chip U1 is connected to the first terminal of the sixth resistor R6. The fifth and sixth terminals of the first chip U1 are connected to the first terminal of the third capacitor C3 and the first and second terminals of the second chip U2. The seventh and eighth terminals of the first chip U1 are connected to the second terminal of the transmitting coil 300 and the third and fourth terminals of the second chip U2. The fifth terminal of the second chip U2 is connected to the seventh and eighth terminals of the second chip U2, the first terminal of the seventh resistor R7, the second terminal of the ninth resistor R9, the second terminal of the fourth capacitor C4, and the second terminal of the fifth capacitor C5. The sixth terminal of the second chip U2 is connected to the first terminal of the eighth resistor R8; the seventh and eighth terminals of the second chip U2 are connected to the second terminal of the ninth resistor R9; the second terminals of the fifth resistor R5 and the sixth resistor R6 are grounded; the second terminal of the third capacitor C3 is connected to the first terminal of the transmitting coil 300; the first terminal of the seventh resistor R7 is connected to the sixth and seventh terminals of the motherboard 210; the second terminal of the eighth resistor R8 is connected to the fourth terminal of the motherboard 210; the first terminal of the ninth resistor R9 is connected to the second terminal of the motherboard 210; the first terminals of the fourth capacitor C4 and the fifth capacitor C5 are connected to the second terminal of the tenth resistor R10 and the first terminal of the eleventh resistor R11; the first terminal of the tenth resistor R10 is connected to the first terminal of the twelfth resistor R12 and grounded; the second terminal of the eleventh resistor R11 is used to detect changes in input current; the second terminal of the twelfth resistor R12 is connected to the fifteenth terminal of the motherboard 210.

[0098] The coil control circuit 200 further includes a communication module 250; the communication module 250 is connected to the external foreign object detection module 240, the transmitting coil 300 and the main board 210; the communication module 250 is used to convert the alternating current passing through the transmitting coil 300 into a detection signal and transmit it to the external foreign object detection module 240.

[0099] It should be understood that the communication module 250 can convert the alternating current passing through the transmitting coil 300 into a detection signal. Since alternating current has specific characteristics such as frequency, amplitude, and waveform, the communication module 250 extracts and processes these characteristics through internal signal processing circuits, such as sampling circuits, filtering circuits, and modulation circuits, converting them into digital or analog signals suitable for transmission. For example, the sampling circuit can sample the alternating current at certain time intervals to obtain the current value at different times; the filtering circuit can remove noise and interference from the sampled signal, improving signal quality; the modulation circuit can modulate the filtered signal onto a specific carrier wave to reduce signal attenuation and distortion during transmission. The converted detection signal needs to match the input requirements of the external foreign object detection module 240. The communication module 250 will further adjust and optimize the detection signal according to the interface standard and signal format of the external foreign object detection module 240 to ensure that the external foreign object detection module 240 can accurately receive and identify these signals.

[0100] The communication module 250 includes: thirteenth resistors R13 to seventeenth resistors R17, third breakdown diodes D3 to fifth breakdown diodes D5, and sixth capacitors C6 to eighth capacitors C8.

[0101] It should be understood that the first end of the thirteenth resistor R13 is connected to the first end of the transmitting coil 300 and the anode of the third breakdown diode D3; the second end of the thirteenth resistor R13 is connected to the cathode of the fourth breakdown diode D4, the external foreign object detection module 240, and the anode of the fifth breakdown diode D5; the anode of the fourth breakdown diode D4 is grounded; the cathode of the fifth breakdown diode D5 is connected to the tenth end of the motherboard 210; and the cathode of the third breakdown diode D3 is connected to the first end of the fourteenth resistor R14 and the sixteenth resistor R The first terminal of the fourteenth resistor R14 is connected to the first terminal of the fifteenth resistor R15 and the first terminal of the sixth capacitor C6; the second terminal of the sixteenth resistor R16 is connected to the first terminal of the seventh capacitor C7, the first terminal of the seventeenth resistor R17 and the first terminal of the eighth capacitor C8; the second terminal of the seventh capacitor C7 is connected to the second terminal of the seventeenth resistor R17 and ground; the second terminal of the fifteenth resistor R15 and the second terminal of the sixth capacitor C6 are grounded; the second terminal of the eighth capacitor C8 is connected to the thirteenth terminal of the motherboard 210.

[0102] The coil control circuit 200 further includes a coil temperature response module 260; the coil temperature response module 260 is connected to the fourteenth terminal of the motherboard 210; the coil temperature response module 260 is used to reflect the real-time temperature of the transmitting coil 300 using a thermistor after receiving the temperature command from the motherboard 210.

[0103] It should be noted that the coil temperature response module 260 can receive temperature commands sent by the motherboard 210 through its fourteenth pin. These commands may include start / stop signals for temperature detection, or parameter settings such as frequency and accuracy. The module adjusts its operating mode according to the received commands to accurately reflect the temperature of the transmitting coil 300. The thermistor is the core component of the coil temperature response module 260, and its resistance changes significantly with temperature. The module places the thermistor and transmitting coil 300 in appropriate positions so that the thermistor can accurately sense temperature changes in the transmitting coil 300. When the transmitting coil 300 operates, it generates heat, causing the ambient temperature to rise, and the thermistor's resistance changes accordingly. The module measures the thermistor's resistance and uses a pre-set resistance-temperature correspondence to convert the resistance into a temperature value, thus reflecting the real-time temperature of the transmitting coil 300. The coil temperature response module 260 feeds back the measured real-time temperature information of the transmitting coil 300 to the motherboard 210. The feedback method can be a digital signal or an analog signal, depending on the interface design and communication protocol of the motherboard 210. After receiving the temperature information, the motherboard 210 can make judgments and processes based on the preset temperature threshold.

[0104] The coil temperature response module 260 includes an eighteenth resistor R18 and a nineteenth resistor R19.

[0105] It should be understood that the nineteenth resistor R19 is a thermistor. The first end of the eighteenth resistor R18 and the first end of the nineteenth resistor R19 are connected to the fourteenth terminal of the motherboard 210, and the second end of the eighteenth resistor R18 and the second end of the nineteenth resistor R19 are grounded.

[0106] In this embodiment, DC power from an external power source enters the motherboard 210. After preliminary processing, the motherboard 210 outputs a DC signal to the single-coil control module 220. The single-coil control module 220 clamps the DC power into a target DC power and transmits it to the drive module 230. The drive module 230 uses an NMOS full-bridge drive circuit to convert the target DC power into a rapidly changing AC current, driving the transmitting coil 300 to generate a changing magnetic field. During the operation of the transmitting coil 300, the detection module 240 monitors the AC current passing through the transmitting coil 300 in real time. If the detected AC current exceeds a preset overcurrent threshold, the detection module 240 immediately feeds back the overcurrent signal to the single-coil control module 220, the drive module 230, and the motherboard 210. The single-coil control module 220, the drive module 230, and the motherboard 210 take corresponding protective measures based on the feedback signal, such as adjusting the clamping voltage, reducing the output current, or cutting off the power supply, to protect the circuit and equipment safety. If the AC current is normal, the detection module 240 continues to monitor in real time to ensure that the entire wireless charging process is stable and safe.

[0107] The DC power from the external power supply enters the mainboard 210. After preliminary processing, the mainboard 210 outputs a control signal to the single-coil control module 220. The single-coil control module 220 clamps the DC power into the target DC power and transmits it to the drive module 230. The drive module 230 converts the target DC power into a rapidly changing AC current, driving the transmitting coil 300 to generate a changing magnetic field. The communication module 250 collects the AC current passing through the transmitting coil 300 in real time and converts it into a detection signal. The communication module 250 transmits the detection signal to the external foreign object detection module 240. Based on the received detection signal, the external foreign object detection module 240 detects whether there are foreign objects around the transmitting coil 300. If a foreign object is detected, the external foreign object detection module 240 feeds the foreign object information back to the mainboard 210 through the communication module 250. Based on the received foreign object information, the mainboard 210 takes corresponding protective measures, such as stopping wireless charging or issuing an alarm, to ensure the safe operation of the wireless charging system. At the same time, the detection module 240 continues to monitor the AC current in real time to ensure the stability and safety of the circuit.

[0108] The external DC power supply enters the motherboard 210. After preliminary processing, the motherboard 210 outputs a control signal to the single-coil control module 220 and simultaneously sends a temperature command to the coil temperature feedback module 260 to initiate temperature detection. The single-coil control module 220 clamps the DC power into a target DC power and transmits it to the drive module 230. The drive module 230 converts the target DC power into a rapidly changing AC current, driving the transmitting coil 300 to generate a changing magnetic field. The transmitting coil 300 generates heat during operation, and the thermistor senses the temperature change, its resistance changing accordingly. The coil temperature feedback module 260 collects the thermistor's resistance value, converts it into a digital signal through a signal acquisition and conversion circuit, and calculates the real-time temperature value of the transmitting coil 300. The coil temperature feedback module 260 feeds back the real-time temperature information to the motherboard 210. The motherboard 210 compares the received temperature information with a preset temperature threshold. If the temperature exceeds the threshold, the motherboard 210 can take corresponding protective measures, such as reducing the charging power, stopping wireless charging, or issuing an alarm, to prevent the transmitting coil 300 from being damaged due to overheating and to ensure the safe operation of the wireless charging system. Meanwhile, the detection module 240 continues to monitor the AC current in real time, and the communication module 250 maintains communication with the external foreign object detection module 240 to ensure the stability and safety of the entire system.

[0109] Furthermore, this application also proposes a toilet seat that includes the wireless charging transmitter described above. (See reference...) Figure 4 , Figure 4 This is a physical drawing of an embodiment of the toilet proposed in this application.

[0110] Since the toilet adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0111] The wireless charging transmitter is installed in the redundant space at the rear end of the toilet seat cover.

[0112] It should be understood that, Figure 4 The image shows a phone being wirelessly charged by bringing it close to the charging area (the charging icon on the toilet seat) and placing it behind the wireless charging transmitter at the back of the toilet seat. The toilet is made entirely of ceramic. The back of the toilet seat typically has some spare space that can accommodate various wireless charging devices smaller than 300mm x 200mm. This space is often underutilized in traditional toilet designs. Installing the wireless charging transmitter here cleverly utilizes this unused space, avoiding the additional use of valuable floor or wall space around the toilet, making the bathroom layout more compact and rational. For example, in some small bathrooms, space is very limited, and every inch needs careful planning. Installing the wireless charging transmitter in the spare space behind the toilet seat will not affect other functional areas of the bathroom, improving the overall space utilization.

[0113] It should be noted that the installation of the wireless charging transmitter will not affect the basic functions of the toilet, such as flushing and waste disposal. Its installation location is carefully designed to avoid interfering with the internal water flow channels and mechanical structure of the toilet, ensuring its normal and stable operation. For example, during installation, the internal structure and spatial layout of the toilet are carefully considered to prevent the wireless charging transmitter from colliding with or interfering with critical components, thus ensuring that all functions of the toilet remain unaffected.

[0114] It should be understood that, as mentioned above, this facilitates charging of smart devices and enhances ease of use. Furthermore, the wireless charging transmitter also features intelligent sensing capabilities, automatically starting charging when the device is placed in the charging area and automatically stopping charging when the device is removed, further improving user comfort. For example, when using the bathroom at night, users don't need to turn on the lights to find a charging port; they can simply bring their smart device close to the wireless charging transmitter for automatic charging, providing a more convenient and comfortable user experience.

[0115] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0116] The above are only some embodiments of this application and do not limit the scope of implementation of this application. Any equivalent structural or procedural transformations made based on the content of this application specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the protection scope of this application.

Claims

1. A wireless charging transmitting device, characterized in that, The wireless charging transmitting device comprises: a control board, a coil control circuit, a transmitting coil and an annular permanent magnet array; The control board is connected to the transmitting coil; the coil control circuit is connected to an external power supply; the coil control circuit is arranged on the bottom surface of the control board, and the transmitting coil is arranged on the front surface of the control board; the annular permanent magnet array is arranged around the outermost side of the transmitting coil; The control board is configured to carry the coil control circuit, the transmitting coil and the annular permanent magnet array; The coil control circuit is configured to convert direct current of the external power supply into rapidly changing alternating current to drive the transmitting coil; The annular permanent magnet array is configured to automatically perform adsorption alignment with a magnetic ring of charging equipment; The transmitting coil is configured to form a changing magnetic field in a preset space above itself after receiving the alternating current, and couple with a charging coil of the charging equipment to perform wireless charging.

2. The wireless charging launch device of claim 1, wherein, The annular permanent magnet array comprises: a plurality of arc-shaped magnets; The control board is a circular plate; Each of the arc-shaped magnets is continuously distributed around the outermost side of the transmitting coil and the edge of the control board; and no arc-shaped magnet is arranged at the connection between the transmitting coil and the coil control circuit.

3. The wireless charging launch device of claim 1, wherein, The coil control circuit comprises: a main board, a single-coil control module and a driving module; The main board is connected to the external power supply and the single-coil control module respectively; the single-coil control module is further connected to the driving module; The main board is configured to output a direct current electrical signal to the single-coil control module; The single-coil control module is configured to clamp the direct current into target direct current and output the target direct current to the driving module; The driving module is configured to convert the target direct current into rapidly changing alternating current to drive the transmitting coil.

4. The wireless charging launch device of claim 3, wherein, The single-coil control module comprises: a first MOS transistor, a second MOS transistor, a first resistor and a second resistor; A gate of the first MOS transistor is connected to a second end of the first resistor and a first end of the second resistor, a drain of the first MOS transistor is connected to a sixth end of the main board, and a source of the first MOS transistor is connected to a first end of the first resistor and a source of the second MOS transistor; A drain of the second MOS transistor is connected to the driving module; A second end of the second resistor is connected to a first end of the main board.

5. The wireless charging launch device of claim 3, wherein, The driving module comprises: a third MOS transistor, a fourth MOS transistor, a first capacitor, a second capacitor, a third resistor, a fourth resistor, a first breakdown diode and a second breakdown diode; A gate of the third MOS transistor is connected to a gate of the fourth MOS transistor, a second end of the third resistor and a first end of the fourth resistor, a source of the third MOS transistor is connected to a source of the fourth MOS transistor and grounded; a drain of the third MOS transistor is connected to a second end of the first capacitor; A drain of the fourth MOS transistor is connected to a first end of the second capacitor, and a source of the fourth MOS transistor is grounded; A first end of the third resistor is connected to an external functional polymer capacitor; a second end of the fourth resistor is grounded; The first terminal of the first capacitor is connected to the cathode of the first breakdown diode and the first terminal of the transmitting coil; the second terminal of the second capacitor is connected to the cathode of the second breakdown diode and the second terminal of the transmitting coil. The anode of the first breakdown diode is connected to the anode of the second breakdown diode.

6. The wireless charging launch device of claim 3, wherein, The coil control circuit further includes: a detection module; The detection module is connected to the single-coil control module, the drive module, the transmitting coil, and the motherboard; The detection module is used to perform overcurrent detection on the AC current passing through the transmitting coil; The detection module includes: a first chip, a second chip, a fifth to a twelfth resistor, and a third to a fifth capacitor; The first and third terminals of the first chip are connected to the first terminals of the fourth and fifth capacitors, the second terminal of the first chip is connected to the first terminal of the fifth resistor, the fourth terminal of the first chip is connected to the first terminal of the sixth resistor, the fifth and sixth terminals of the first chip are connected to the first terminal of the third capacitor and the first and second terminals of the second chip, and the seventh and eighth terminals of the first chip are connected to the second terminal of the transmitting coil and the third and fourth terminals of the second chip. The fifth terminal of the second chip is connected to the seventh and eighth terminals of the second chip, the first terminal of the seventh resistor, the second terminal of the ninth resistor, the second terminal of the fourth capacitor, and the second terminal of the fifth capacitor. The sixth terminal of the second chip is connected to the first terminal of the eighth resistor, and the seventh and eighth terminals of the second chip are connected to the second terminal of the ninth resistor. The second terminals of the fifth and sixth resistors are grounded; the second terminal of the third capacitor is connected to the first terminal of the transmitting coil; the first terminal of the seventh resistor is connected to the sixth and seventh terminals of the motherboard; the second terminal of the eighth resistor is connected to the fourth terminal of the motherboard; the first terminal of the ninth resistor is connected to the second terminal of the motherboard. The first terminals of the fourth and fifth capacitors are connected to the second terminal of the tenth resistor and the first terminal of the eleventh resistor; the first terminal of the tenth resistor is connected to the first terminal of the twelfth resistor and ground; the second terminal of the eleventh resistor is used to detect changes in the input current; the second terminal of the twelfth resistor is connected to the fifteenth terminal of the motherboard.

7. The wireless charging transmitter as described in claim 3, characterized in that, The coil control circuit further includes: a communication module; The communication module is connected to the external foreign object detection module, the transmitting coil, and the motherboard; The communication module is used to convert the alternating current passing through the transmitting coil into a detection signal and transmit it to the external foreign object detection module; The communication module includes: thirteenth to seventeenth resistors, third to fifth breakdown diodes, and sixth to eighth capacitors; The first end of the thirteenth resistor is connected to the first end of the transmitting coil and the anode of the third breakdown diode; the second end of the thirteenth resistor is connected to the cathode of the fourth breakdown diode, the external foreign object detection module, and the anode of the fifth breakdown diode; the anode of the fourth breakdown diode is grounded; the cathode of the fifth breakdown diode is connected to the tenth end of the motherboard. The cathode of the third breakdown diode is connected to the first terminal of the fourteenth resistor and the first terminal of the sixteenth resistor; the second terminal of the fourteenth resistor is connected to the first terminal of the fifteenth resistor and the first terminal of the sixth capacitor; the second terminal of the sixteenth resistor is connected to the first terminal of the seventh capacitor, the first terminal of the seventeenth resistor and the first terminal of the eighth capacitor; the second terminal of the seventh capacitor is connected to the second terminal of the seventeenth resistor and ground; the second terminal of the fifteenth resistor and the second terminal of the sixth capacitor are grounded; the second terminal of the eighth capacitor is connected to the thirteenth terminal of the motherboard.

8. The wireless charging transmitter as described in claim 3, characterized in that, The coil control circuit also includes: a coil temperature response module; The coil temperature feedback module is connected to the fourteenth terminal of the main board; The coil temperature feedback module is used to reflect the real-time temperature of the transmitting coil using a thermistor after receiving the temperature command from the motherboard. The coil temperature response module includes an eighteenth resistor and a nineteenth resistor. The first end of the eighteenth resistor and the first end of the nineteenth resistor are connected to the fourteenth terminal of the motherboard, and the second end of the eighteenth resistor and the second end of the nineteenth resistor are grounded.

9. A toilet bowl characterized by The toilet includes a wireless charging transmitter as described in any one of claims 1 to 8.

10. The toilet bowl as claimed in claim 9, wherein The wireless charging transmitter is installed in the redundant space at the rear end of the toilet seat cover.

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