Wireless charging seat of sterilization device of kitchen waste food processor

Abstract

The utility model discloses a wireless charging seat of a sterilization device of a kitchen waste food processor. The wireless charging seat comprises a shell, a main circuit board, a plug assembly and a coil, the main circuit board, the plug assembly and the coil are all arranged in the shell; one end of the plug is connected with the input end of the main circuit board through an electric wire, and the other end of the plug is used for being inserted into a socket hole; the coil is laid and attached to the inner side of the top of the shell and connected with the output end of the main circuit board. The main circuit board is used for converting an input power supply into an output power supply for wireless charging of the coil; the top of the shell protrudes outwards to form a clamping groove-shaped boss, the clamping direction of a clamping groove is parallel to the top of the shell, a handle of the sterilization device can be clamped with the clamping groove, and a coil in the shell corresponds to a receiving coil in the sterilization device for wireless charging. When the sterilization device is not used, the placement position of the sterilization device can be fixed; and the sterilization device which is not used can be wirelessly charged, so that the sterilization device can be charged while being discharged.

Description

Technical Field

[0001] This utility model relates to the field of charging base technology, and in particular to a wireless charging base for a food waste processor sterilization device. Background Technology

[0002] Currently, China has begun to pay attention to the classification and treatment of kitchen waste. Existing food waste disposers used in kitchen sinks can easily breed bacteria and viruses after pulverizing kitchen waste. Therefore, a sterilization device that acts as a lid and can be placed on the inlet of the food waste disposer is needed.

[0003] Existing sterilization devices operate independently, either with their own internal batteries for self-powered operation or requiring external power during operation. Self-powered devices require charging after a period of use, and the conventional charging method is plug-in charging, which involves connecting to a socket and power cord for wired charging. This method is not very convenient and cannot be used for charging anytime, anywhere. External power supply has a low safety factor because it provides power during use and is therefore less stable. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a wireless charging base for a food waste processor sterilization device, thereby solving the technical problem that existing technologies do not offer sufficient charging convenience and cannot achieve charging anytime, anywhere.

[0005] This utility model provides a wireless charging base for a food waste processor sterilization device, comprising: a housing, a main circuit board, a plug assembly, and a coil;

[0006] The main circuit board, plug assembly, and coil are all housed within the housing. The plug assembly extends from the bottom of the housing, with one end connected to the input terminal of the main circuit board via a wire, and the other end inserted into a socket hole. The coil is laid flat and fitted inside the top of the housing, connecting to the output terminal of the main circuit board. The main circuit board converts the input power into output power for wireless charging of the coil. The top of the housing protrudes outward to form a boss, which is shaped like a slot. The engagement direction of the slot is parallel to the top of the housing, allowing the handle of the sterilization device to engage with the slot. The coil inside the housing wirelessly charges the receiving coil inside the sterilization device.

[0007] Furthermore, the plug assembly is a retractable plug or a foldable plug, which extends or folds into the housing.

[0008] Furthermore, the coil is made of multiple metal wires wound together in a manner that extends axially with the same diameter.

[0009] Furthermore, the main circuit board includes: a power control circuit and a wireless inductive transmission control circuit, wherein the power control circuit includes: eleven resistors, a thermistor, seven capacitors, three diodes, a rectifier bridge, two core inductors, a transformer, and a power control chip.

[0010] The two plugs are connected to the two AC input terminals of the rectifier bridge, respectively; the positive output terminal of the rectifier bridge is connected to one end of the thermistor and the positive terminal of the first capacitor, respectively; the other end of the thermistor is connected to the positive terminal of the second capacitor, one end of the eleventh resistor, one end of the fourth capacitor, one end of the second resistor, and one leg of the primary coil of the transformer, respectively; the negative output terminal of the rectifier bridge is connected to the negative terminal of the first capacitor and one end of the first inductor, respectively; the other end of the eleventh resistor is connected to one end of the tenth resistor; the other end of the tenth resistor is connected to one end of the seventh resistor; the other end of the fourth capacitor is connected to the other end of the second resistor and one end of the first resistor, respectively; the other end of the first resistor is connected to the negative terminal of the first diode;

[0011] The VDD terminal of the power control chip is connected to the other end of the seventh resistor, one end of the seventh capacitor, the positive terminal of the third capacitor, and one end of the third resistor, respectively; the FB terminal of the power control chip is connected to one end of the fourth resistor and one end of the fifth resistor, respectively; the CS terminal of the power control chip is connected to one end of the sixth resistor; the two DRAIN terminals of the power control chip are connected in parallel and then connected to the positive terminal of the first diode and the other end of the primary coil of the transformer, respectively; the other end of the third resistor is connected to the negative terminal of the second diode; the positive terminal of the second diode is connected to one end of the second core inductor and the other end of the fifth resistor, respectively.

[0012] One leg of the transformer's secondary coil is connected to one end of the fifth capacitor and the positive terminal of the third diode, respectively; the other end of the fifth capacitor is connected to one end of the eighth resistor; the other end of the eighth resistor is connected to the negative terminal of the third diode, the positive terminal of the sixth capacitor, and one end of the ninth resistor, respectively, and is connected to the input terminal of the wireless induction transmission control circuit; the output terminal of the wireless induction transmission control circuit is connected to the coil.

[0013] The other end of the first core inductor, the other end of the second core inductor, the negative terminal of the second capacitor, the negative terminal of the third capacitor, the other end of the seventh capacitor, the other end of the fourth resistor, the other end of the sixth resistor, the NC terminal of the power control chip, the GND terminal of the power control chip, the other pin of the transformer secondary coil, the negative terminal of the sixth capacitor, and the other end of the ninth resistor are all grounded.

[0014] Furthermore, the wireless inductive transmission control circuit includes: two resistors, two capacitors, an inductor, and a wireless inductive transmission chip; the output terminal of the power control circuit is connected to one end of the twelfth resistor, one end of the eighth capacitor, one end of the ninth capacitor, one end of the inductor, the VDD terminal of the wireless inductive transmission chip, and the N / F terminal of the wireless inductive transmission chip, respectively; the other end of the twelfth resistor is connected to one end of the thirteenth resistor and one R terminal of the wireless inductive transmission chip, respectively; the other end of the thirteenth resistor is connected to the other R terminal of the wireless inductive transmission chip, respectively; the other end of the eighth capacitor is connected to the other end of the inductor and the Vin terminal of the wireless inductive transmission chip, respectively; the other end of the ninth capacitor is grounded.

[0015] Furthermore, the power control chip is model number OB2513.

[0016] Furthermore, the model number of the wireless inductive transmitter chip is XKT-518.

[0017] The beneficial effects of this utility model are:

[0018] This utility model can be directly plugged into a socket. On the one hand, it engages with the handle of the sterilization device through a slot, which can fix the placement of the sterilization device when it is not in use, without taking up space. On the other hand, it can also wirelessly charge the sterilization device when it is not in use, so that it can be placed and charged at any time.

[0019] This invention achieves a non-contact power supply method, avoiding the inconvenience of charging cables and placement; at the same time, it can identify whether the sterilization device is charging or fully charged by the electromagnetic induction current generated between the two, avoiding battery safety hazards and charging anxiety.

[0020] This invention modifies the winding shape of the coil, allowing it to be directly applied to the structure of existing charging docks and sterilization devices, thus enabling wireless inductive power supply based on a smaller contact structure.

[0021] This invention uses a telescopic or foldable plug, which can further reduce the size of the charger.

[0022] This invention uses feedback signals to detect current, which is fast and reflects the working status of the charging dock in real time. By identifying the current, it controls the charging dock to enter a low-power, working or abnormal protection state, making the charging dock safer and more energy-efficient. Attached Figure Description

[0023] The features and advantages of this utility model will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as limiting the utility model in any way. In the drawings:

[0024] Figure 1This is one of the exploded views of a specific embodiment of this utility model;

[0025] Figure 2 This is the second exploded view of a specific embodiment of this utility model;

[0026] Figure 3 This is a side sectional view of a specific embodiment of the present utility model;

[0027] Figure 4 This is a side sectional view of the coil according to a specific embodiment of the present invention;

[0028] Figure 5 This is a circuit diagram of the power control circuit according to a specific embodiment of the present utility model;

[0029] Figure 6 This is a circuit diagram of a wireless inductive transmission control circuit according to a specific embodiment of the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The present invention will be further illustrated below with reference to specific embodiments. Those skilled in the art should understand that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Modifications to the present invention in various equivalent forms all fall within the scope defined by the appended claims.

[0032] like Figure 1-4 As shown, this utility model provides a wireless charging base for a food waste processor sterilization device, including: a housing, a main circuit board 2, a plug assembly 3, and a coil 4;

[0033] The shell is semi-elliptical, with one end curved and the other end right-angled. The shell is divided into a cover 11 and a body 12. The cover 11 is the top of the shell, and the bottom of the body 12 is the bottom of the shell. A groove 112 is provided on the inner side of the cover 11 for the coil 4 to be inserted. The top surface of the cover 11 protrudes outward to form a boss 111. The boss 111 is a U-shaped slot. The engagement direction of the boss 111 is parallel to the cover. The handle of the sterilization device can be engaged with the U-shaped slot. After engagement, the coil 4 inside the shell corresponds to the receiving coil inside the sterilization device in spatial position, enabling wireless charging. Two slots 121 are provided axially at the curved end of the bottom of the body for the plug to extend from inside the shell.

[0034] The plug assembly 3 is placed in the cavity at the arc end of the housing. The plug can extend out of the housing from the slot 121 at the bottom of the housing body 12. The plug assembly 3 is preferably foldable or telescopic. The plug can be folded or retracted into the housing, thereby reducing the overall volume of the charging dock.

[0035] Coil 4 is made of multiple metal wires that extend axially in a coaxial manner with equal diameter. Coil 4 is fixed in a groove on the inner side of the shell cover 11.

[0036] The main circuit board is placed in the cavity on the side of the housing away from the curved end;

[0037] The main circuit board includes: a power control circuit and a wireless inductive transmission control circuit, wherein, for example... Figure 5 As shown, the power control circuit includes: eleven resistors, a thermistor B1, seven capacitors, three diodes, a rectifier bridge BD1, two core inductors, a transformer T, and a power control chip U1.

[0038] The two plugs are connected to the two AC input terminals of rectifier bridge BD1 respectively; the positive output terminal of rectifier bridge BD1 is connected to one end of thermistor B1 and the positive terminal of capacitor C1 respectively; the other end of thermistor B1 is connected to the positive terminal of capacitor C2, one end of resistor R11, one end of capacitor C4, one end of resistor R2, and one leg of the primary coil of transformer T respectively; the negative output terminal of rectifier bridge BD1 is connected to the negative terminal of capacitor C1 and one end of core inductor L1 respectively; the other end of resistor R11 is connected to one end of resistor R10; the other end of resistor R10 is connected to one end of resistor R7; the other end of capacitor C4 is connected to the other end of resistor R2 and one end of resistor R1 respectively; the other end of resistor R1 is connected to the negative terminal of diode D1;

[0039] The VDD terminal of power control chip U1 is connected to the other end of resistor R7, one end of capacitor C7, the positive terminal of capacitor C3, and one end of resistor R3, respectively; the FB terminal of power control chip U1 is connected to one end of resistor R4 and one end of resistor R5, respectively; the CS terminal of power control chip U1 is connected to one end of resistor R6; the two DRAIN terminals of power control chip U1 are connected in parallel and then connected to the positive terminal of diode D1 and the other end of the primary coil of transformer T, respectively; the other end of resistor R3 is connected to the negative terminal of diode D2; the positive terminal of diode D2 is connected to one end of inductor L2 and the other end of resistor R5, respectively.

[0040] One leg of the secondary coil of transformer T is connected to one end of capacitor C5 and the positive terminal of diode D3; the other end of capacitor C5 is connected to one end of resistor R8; the other end of resistor R8 is connected to the negative terminal of diode D3, the positive terminal of capacitor C6, and one end of resistor R9, and is connected to the input terminal of the wireless induction transmission control circuit; the output terminal of the wireless induction transmission control circuit is connected to the coil.

[0041] The other end of the core inductor L1, the other end of the core inductor L2, the negative terminal of capacitor C2, the negative terminal of capacitor C3, the other end of capacitor C7, the other end of resistor R4, the other end of resistor R6, the NC terminal of power control chip U1, the GND terminal of power control chip U1, the other pin of the secondary coil of transformer T, the negative terminal of capacitor C6, and the other end of resistor R9 are all grounded.

[0042] like Figure 6 As shown, the wireless inductive transmission control circuit includes: two resistors, two capacitors, inductor L3, and wireless inductive transmission chip U2; the output terminal of the power control circuit is connected to one end of resistor R12, one end of capacitor C8, one end of capacitor C9, one end of inductor L3, the VDD terminal of wireless inductive transmission chip U2, and the N / F terminal of wireless inductive transmission chip U2, respectively; the other end of resistor R12 is connected to one end of resistor R13 and one R terminal of wireless inductive transmission chip U2, respectively; the other end of resistor R13 is connected to the other R terminal of wireless inductive transmission chip U2, respectively; the other end of capacitor C8 is connected to the other end of inductor L3 and the Vin terminal of wireless inductive transmission chip U2, respectively; the other end of capacitor C9 is grounded.

[0043] As a priority, the power control chip model is OB2513 and the wireless induction transmitter chip model is XKT-518.

[0044] To use, pry the charging dock's plug out of the casing and insert it into the socket with the U-shaped slot opening facing upwards. When the sterilization device is not in use and needs to be fixed in place, insert the handle of the sterilization device into the U-shaped slot through the opening. Once locked in place, the sterilization device is securely positioned. At this point, because the coil inside the charging dock and the coil in the sterilization device are aligned in space, the charging process for the sterilization device is initiated based on the principle of wireless proximity charging. Simultaneously, the current feedback signal identifies the remaining power of the sterilization device and controls the charging status—whether it's low power consumption, normal charging, or abnormal protection—based on the remaining power level.

[0045] It should be noted that the plug assembly and its folding and telescopic structure in this utility model are implementable by those skilled in the art and are not particularly unique. Those skilled in the art can also implement wireless charging functionality based on the circuitry on the main circuit board provided in this utility model, combined with the basic principles of wireless charging; there is no possibility that it cannot be implemented. The food waste processor sterilization device described in this utility model is an existing device, and there is no possibility that its structure is unknown.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A wireless charging base for a food waste processor sterilization device, characterized in that, include: Housing, main circuit board, plug assembly, and coil; The main circuit board, plug assembly, and coil are all housed within the housing. The plug assembly extends from the bottom of the housing, with one end connected to the input terminal of the main circuit board via a wire, and the other end inserted into a socket hole. The coil is laid flat and fitted inside the top of the housing, connecting to the output terminal of the main circuit board. The main circuit board converts the input power into output power for wireless charging of the coil. The top of the housing protrudes outward to form a boss, which is shaped like a slot. The engagement direction of the slot is parallel to the top of the housing, allowing the handle of the sterilization device to engage with the slot. The coil inside the housing wirelessly charges the receiving coil inside the sterilization device.

2. The wireless charging base for the food waste processor sterilization device as described in claim 1, characterized in that, The plug assembly is a retractable plug or a foldable plug, which can be extended or folded into the housing.

3. The wireless charging base for the food waste processor sterilization device as described in claim 1, characterized in that, The coil is made of multiple metal wires wound together in a coaxial, equal-diameter, axially extending manner.

4. The wireless charging base for the food waste processor sterilization device as described in claim 1, characterized in that, The main circuit board includes a power control circuit and a wireless inductive transmission control circuit. The power control circuit includes eleven resistors, a thermistor, seven capacitors, three diodes, a rectifier bridge, two core inductors, a transformer, and a power control chip. The two plugs are connected to the two AC input terminals of the rectifier bridge, respectively; the positive output terminal of the rectifier bridge is connected to one end of the thermistor and the positive terminal of the first capacitor, respectively; the other end of the thermistor is connected to the positive terminal of the second capacitor, one end of the eleventh resistor, one end of the fourth capacitor, one end of the second resistor, and one leg of the primary coil of the transformer, respectively; the negative output terminal of the rectifier bridge is connected to the negative terminal of the first capacitor and one end of the first inductor, respectively; the other end of the eleventh resistor is connected to one end of the tenth resistor; the other end of the tenth resistor is connected to one end of the seventh resistor; the other end of the fourth capacitor is connected to the other end of the second resistor and one end of the first resistor, respectively; the other end of the first resistor is connected to the negative terminal of the first diode; The VDD terminal of the power control chip is connected to the other end of the seventh resistor, one end of the seventh capacitor, the positive terminal of the third capacitor, and one end of the third resistor, respectively; the FB terminal of the power control chip is connected to one end of the fourth resistor and one end of the fifth resistor, respectively; the CS terminal of the power control chip is connected to one end of the sixth resistor; the two DRAIN terminals of the power control chip are connected in parallel and then connected to the positive terminal of the first diode and the other end of the primary coil of the transformer, respectively; the other end of the third resistor is connected to the negative terminal of the second diode; the positive terminal of the second diode is connected to one end of the second core inductor and the other end of the fifth resistor, respectively. One leg of the transformer's secondary coil is connected to one end of the fifth capacitor and the positive terminal of the third diode, respectively; the other end of the fifth capacitor is connected to one end of the eighth resistor; the other end of the eighth resistor is connected to the negative terminal of the third diode, the positive terminal of the sixth capacitor, and one end of the ninth resistor, respectively, and is connected to the input terminal of the wireless induction transmission control circuit; the output terminal of the wireless induction transmission control circuit is connected to the coil. The other end of the first core inductor, the other end of the second core inductor, the negative terminal of the second capacitor, the negative terminal of the third capacitor, the other end of the seventh capacitor, the other end of the fourth resistor, the other end of the sixth resistor, the NC terminal of the power control chip, the GND terminal of the power control chip, the other pin of the transformer secondary coil, the negative terminal of the sixth capacitor, and the other end of the ninth resistor are all grounded.

5. The wireless charging base for the food waste processor sterilization device as described in claim 4, characterized in that, The wireless inductive transmission control circuit includes: two resistors, two capacitors, an inductor, and a wireless inductive transmission chip; the output terminal of the power control circuit is connected to one end of the twelfth resistor, one end of the eighth capacitor, one end of the ninth capacitor, one end of the inductor, the VDD terminal of the wireless inductive transmission chip, and the N / F terminal of the wireless inductive transmission chip; the other end of the twelfth resistor is connected to one end of the thirteenth resistor and one R terminal of the wireless inductive transmission chip; the other end of the thirteenth resistor is connected to the other R terminal of the wireless inductive transmission chip; the other end of the eighth capacitor is connected to the other end of the inductor and the Vin terminal of the wireless inductive transmission chip; the other end of the ninth capacitor is grounded.

6. The wireless charging base for the food waste processor sterilization device as described in claim 4, characterized in that, The power control chip is model number OB2513.

7. The wireless charging base for the food waste processor sterilization device as described in claim 5, characterized in that, The model number of the wireless induction transmitter chip is XKT-518.

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