Disinfection box charging circuit and disinfection box

Abstract

The utility model discloses a disinfection box charging circuit and a disinfection box, and relates to the technical field of disinfection boxes. The disinfection box comprises a switch box magnetic structure, and the disinfection box charging circuit comprises a first power input end, a Hall switch circuit, a wireless charging circuit and a control circuit. Wherein the Hall switch circuit is matched with the magnetic structure of the switch box for use, so that the state of the disinfection box can be detected, and a corresponding switch signal is output. The control circuit determines the current state of the disinfection box according to the switching signal. And when the disinfection box is in an open state, the wireless charging circuit is controlled to work. At the moment, the wireless charging circuit converts the direct-current power supply into a wireless charging signal to supply power to charging equipment. And when in the closed state, the wireless charging circuit is controlled to stop working. The wireless charging disinfection box has a wireless charging function, can automatically charge equipment to be disinfected in a wireless manner when the disinfection box is closed, is not limited by a charging contact, and provides greater flexibility and convenience for a user to place the equipment to be disinfected.

Description

Technical Field

[0001] This utility model relates to the field of disinfection box technology, and in particular to a disinfection box charging circuit and a disinfection box. Background Technology

[0002] With increasing public awareness of health and growing demands for hygiene, disinfection boxes are being used more and more widely in daily life. Especially in the field of personal care, frequently used oral hygiene devices such as toothbrushes require proper disinfection after each use to maintain their cleanliness and prevent bacterial growth that could affect health.

[0003] Many disinfection boxes on the market currently offer charging functionality while disinfecting cleaning devices such as electric toothbrushes. However, most use wired charging, which not only limits the placement of cleaning devices inside the box but also, due to the fixed design of the charging contacts, can lead to inconsistent distances or obstruction between the device and the UV lamp, thus affecting the uniformity of the disinfection effect. Utility Model Content

[0004] The main purpose of this invention is to provide a charging circuit for a disinfection box, which aims to solve the problem that the existing disinfection boxes use wired charging, which restricts the placement of cleaning equipment and thus affects the uniformity of disinfection effect.

[0005] To achieve the above objectives, the present invention proposes a charging circuit for a disinfection box, wherein the disinfection box includes a switch box magnetic structure, and the charging circuit for the disinfection box includes:

[0006] The first power input terminal is used to input DC power.

[0007] A Hall effect switch circuit is provided, wherein the power supply terminal of the Hall effect switch circuit is connected to the first power input terminal. The Hall effect switch circuit is used to detect the action of the magnetic structure of the switch box and output a corresponding switch signal. The switch signal is used to indicate whether the disinfection box is in an open or closed state.

[0008] A wireless charging circuit, wherein the power supply terminal of the wireless charging circuit is connected to the first power input terminal, and the output terminal of the wireless charging circuit is used to wirelessly connect to the charging signal receiving terminal of the charging device; the wireless charging circuit is used to convert the DC power supply into a wireless charging signal output to power the charging device.

[0009] The control circuit has its power supply terminal connected to the first power input terminal, its first signal input terminal connected to the signal output terminal of the Hall switch circuit, and its first signal output terminal connected to the signal input terminal of the wireless charging circuit.

[0010] The control circuit is used to control the operation of the wireless charging circuit according to the switch signal.

[0011] In one embodiment, the second signal input terminal of the control circuit is connected to the signal feedback terminal of the wireless charging circuit. The control circuit is also used to control the operation of the wireless charging circuit according to the current feedback signal of the wireless charging circuit; the feedback signal is used to indicate the current magnitude of the wireless charging circuit.

[0012] In one embodiment, the wireless charging circuit includes an operational amplifier, a first switching transistor, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a first inductor;

[0013] The controlled terminal of the first switching transistor is connected to the first signal output terminal of the control circuit. The first terminal of the first switching transistor, one terminal of the first capacitor, and one terminal of the first inductor are connected to each other. The other terminals of the first capacitor and the first inductor are connected to the first power supply terminal of the wireless charging circuit. The second terminal of the first switching transistor and one terminal of the first resistor are connected to the first input terminal of the operational amplifier. The other terminal of the first resistor is grounded. The second input terminal of the operational amplifier, one terminal of the second resistor, and one terminal of the third resistor are connected to one terminal of the second capacitor. The other terminal of the second resistor is grounded. The other terminal of the third resistor, the other terminal of the second capacitor, and the output terminal of the operational amplifier are connected to the second signal input terminal of the control circuit.

[0014] In one embodiment, the wireless charging circuit further includes a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a third capacitor, and a fourth capacitor;

[0015] One end of the fourth resistor is connected to the first signal output terminal of the control circuit. The other end of the fourth resistor and one end of the fifth resistor are connected to the controlled terminal of the first switching transistor. One end of the sixth resistor, the second terminal of the first switching transistor, and one end of the first resistor are connected. The other end of the sixth resistor and one end of the third capacitor are connected to the first input terminal of the operational amplifier. One end of the fourth capacitor and the positive power supply terminal of the operational amplifier are connected to the second power supply terminal of the wireless charging circuit. One end of the seventh resistor is connected to the output terminal of the operational amplifier. The other end of the seventh resistor is connected to the second signal input terminal of the control circuit. The other ends of the fourth capacitor, the third capacitor, and the fifth resistor are grounded.

[0016] This utility model also proposes a disinfection box, including a switch box magnetic structure and a disinfection box charging circuit as described above.

[0017] In one embodiment, the disinfection box further includes:

[0018] Lighting fixtures, used to generate the light source needed for disinfection;

[0019] A boost converter circuit, wherein the power input terminal of the boost converter circuit is connected to the first power input terminal, the output terminal of the boost converter circuit is connected to the lamp, and the signal input terminal of the boost converter circuit is connected to the second signal output terminal of the control circuit;

[0020] The boost converter circuit is used to convert the DC power supply into AC drive power output to drive the lamp.

[0021] The control circuit is also used to control the operation of the boost converter circuit according to the switching signal.

[0022] In one embodiment, the boost converter circuit includes a second switching transistor, a second inductor, a multivibrator, and a transformer;

[0023] The controlled terminal of the second switching transistor is connected to the second signal output terminal of the control circuit. The first terminal of the second switching transistor is grounded. The second terminal of the second switching transistor is connected to one end of the second inductor. The second end of the second inductor is connected to the input terminal of the multivibrator. The output terminal of the multivibrator is connected to the input terminal of the transformer. The output terminal of the transformer is connected to the lamp. The power supply terminal of the multivibrator is connected to the power input terminal of the boost converter circuit.

[0024] In one embodiment, the multivibrator includes an eighth resistor, a ninth resistor, a fifth capacitor, a first transistor, and a second transistor;

[0025] The emitter of the first transistor and the emitter of the second transistor are connected to the other end of the second inductor. The base of the first transistor and one end of the ninth resistor are connected to the first primary terminal of the transformer. The base of the second transistor and one end of the eighth resistor are connected to the fifth primary terminal of the transformer. The other end of the ninth resistor, the other end of the eighth resistor, and the power supply terminal of the multivibrator are connected to the third primary terminal of the transformer. The collector of the first transistor and one end of the fifth capacitor are connected to the second primary terminal of the transformer. The collector of the second transistor and the other end of the fifth capacitor are connected to the fourth primary terminal of the transformer.

[0026] In one embodiment, the disinfection box further includes:

[0027] A voltage regulator circuit is provided, wherein the input terminal of the voltage regulator circuit is connected to the power input terminal, and the output terminal of the voltage regulator circuit is connected to the power supply terminal of the Hall switch circuit, the power supply terminal of the wireless charging circuit, and the power supply terminal of the control circuit, respectively; the voltage regulator circuit is used to regulate the DC power input from the first power input terminal and output it.

[0028] In one embodiment, the disinfection box further includes:

[0029] An indicator light circuit is provided, which is connected to the third signal output terminal of the control circuit. The indicator light circuit is used to control the lighting state of the indicator light according to the indicator light control signal output by the control circuit.

[0030] This utility model provides a disinfection box charging circuit. The disinfection box includes a switch box magnetic structure, and the charging circuit includes a first power input terminal, a Hall effect switch circuit, a wireless charging circuit, and a control circuit. DC power is input through the first power input terminal. The Hall effect switch circuit works in conjunction with the switch box magnetic structure to detect whether the disinfection box is open or closed and outputs a corresponding switch signal. This switch signal is then transmitted to the control circuit, which determines the current state of the disinfection box based on the switch signal. When the disinfection box is open, the wireless charging circuit is activated. At this time, the wireless charging circuit converts the DC power into a wireless charging signal and transmits this signal to the charging device. The charging device receives the wireless charging signal through its own charging signal receiver and converts it into charging power for charging. When the disinfection box is closed, the wireless charging circuit stops working. The disinfection box provided by this utility model achieves both disinfection and charging functions, improving the compatibility of the disinfection box. It also features wireless charging, automatically wirelessly charging the device to be disinfected when the disinfection box is closed. Compared with the prior art, this utility model is not limited by the fixed design of the charging contact point, which provides users with greater flexibility and convenience in placing the equipment to be disinfected, and can improve the uniformity of disinfection. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a structure of an embodiment of the charging circuit for the disinfection box provided by this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of an embodiment of the disinfection box provided by this utility model.

[0034] Explanation of icon numbers:

[0035]

[0036]

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment 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.

[0040] Furthermore, the use of terms such as "first" and "second" in this utility model 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 by this utility model.

[0041] Many disinfection boxes on the market currently offer charging functionality while disinfecting cleaning devices such as electric toothbrushes. However, most use wired charging, which not only limits the placement of cleaning devices inside the box but also, due to the fixed design of the charging contacts, can lead to inconsistent distances or obstruction between the device and the UV lamp, thus affecting the uniformity and thoroughness of the disinfection effect.

[0042] This utility model proposes a charging circuit for a disinfection box.

[0043] Please see Figure 1In one embodiment of this utility model, the disinfection box includes a switch box magnetic structure, and the disinfection box charging circuit includes:

[0044] The first power input terminal is used to input DC power.

[0045] Hall switch circuit 01, the power supply terminal of Hall switch circuit 01 is connected to the first power input terminal. Hall switch circuit 01 is used to detect the action of the magnetic structure of the switch box and output the corresponding switch signal; the switch signal is used to indicate whether the disinfection box is in the open or closed state.

[0046] The wireless charging circuit 02 has its power supply terminal connected to the first power input terminal, and its output terminal used to wirelessly connect to the charging signal receiving terminal of the charging device. The wireless charging circuit 02 is used to convert DC power into a wireless charging signal output to power the charging device.

[0047] Control circuit 03, the power supply terminal of control circuit 03 is connected to the first power input terminal, the first signal input terminal of control circuit 03 is connected to the signal output terminal of Hall switch circuit 01, and the first signal output terminal of control circuit 03 is connected to the signal input terminal of wireless charging circuit 02.

[0048] Control circuit 03 is used to control the operation of wireless charging circuit 02 according to the switch signal.

[0049] It should be noted that the charging device is also the device to be sterilized, and can be any device requiring sterilization, such as an electric toothbrush, water flosser, razor, or children's toy, with a charging signal receiver; there are no restrictions here. In the magnetic structure of the switch box, a magnet is mounted on a moving part of the switch box, such as a lid or door. When the lid is closed or opened, the position of the magnet relative to the Hall switch circuit 01 changes, causing the Hall switch circuit to detect the change in the magnetic field and output different switching signals accordingly.

[0050] Please see Figure 2In this embodiment, the Hall switch circuit 01 may include a Hall chip U3, capacitor C13, capacitor C12, and resistor R13. When the disinfection box is opened / closed, the magnetic structure of the switch box changes the strength of the surrounding magnetic field. The Hall chip U3 can sense this change in magnetic field and output a corresponding switching signal. The wireless charging circuit 02 may include components such as a switching transistor, capacitors, and inductors. The capacitors and inductors can form an LC oscillation circuit to emit a wireless oscillation signal of a specific frequency. The control circuit 03 may include a control chip U1, which may be an MCU chip or an FPGA chip. By rapidly opening and closing the switching transistor, a high-frequency alternating current can be generated in the LC oscillation circuit, thereby generating a corresponding magnetic field. The conduction frequency of the switching transistor directly affects the energy output of the LC oscillation circuit. By adjusting the switching frequency of the switching transistor, the control circuit 03 can precisely control the output power level to adapt to the charging needs of different charging devices.

[0051] In this embodiment, DC power is input through the first power input terminal. The Hall effect switch circuit 01, in conjunction with the magnetic structure, can detect whether the disinfection box is open or closed. For example, when the disinfection box is closed, the Hall effect switch circuit 01 detects a magnetic field strength greater than a preset magnetic field strength and outputs a high-level signal; when the disinfection box is open, the Hall effect switch circuit 01 detects a magnetic field strength less than or equal to the preset magnetic field strength and outputs a low-level signal. The control circuit 03 can determine the current state of the disinfection box based on the switch signal. When the disinfection box is open, the wireless charging circuit 02 is activated. At this time, the wireless charging circuit 02 converts the DC power into a wireless charging signal and transmits this signal to the charging device. The charging device receives the wireless charging signal through its own charging signal receiver and converts it into charging power for charging. When the disinfection box is closed, the wireless charging circuit 02 stops operating. Compared with the prior art, the disinfection box provided in this embodiment can achieve both disinfection and charging functions, improving the compatibility of the disinfection box. It also has a wireless charging function, automatically wirelessly charging the device to be disinfected when the disinfection box is closed, providing users with greater flexibility and convenience when placing the device. In this way, when the equipment to be disinfected is charged, it is no longer limited to the fixed position of the charging contact point. This avoids the problem of inconsistent distance or obstruction between the equipment to be disinfected and the ultraviolet lamp caused by the fixed design of the charging contact point, providing users with greater flexibility and convenience in placing the equipment to be disinfected, and improving the uniformity of disinfection.

[0052] In this invention, DC power is input through the first power input terminal. The Hall effect switch circuit 01, in conjunction with the magnetic structure, detects whether the disinfection box is open or closed and outputs a corresponding switch signal. This switch signal is then transmitted to the control circuit 03, which determines the current state of the disinfection box based on the switch signal. When the disinfection box is open, the wireless charging circuit 02 is activated. At this time, the wireless charging circuit 02 converts the DC power into a wireless charging signal and transmits this signal to the charging device. The charging device receives the wireless charging signal through its own charging signal receiver and converts it into charging power for charging. When the disinfection box is closed, the wireless charging circuit 02 stops operating. Compared with existing technologies, the disinfection box provided in this embodiment can achieve both disinfection and charging functions, improving the compatibility of the disinfection box. Furthermore, it has a wireless charging function, automatically wirelessly charging the device to be disinfected when the disinfection box is closed, providing users with greater flexibility and convenience when placing the device.

[0053] Please see Figure 1 In one embodiment of this utility model, the second signal input terminal of the control circuit 03 is connected to the signal feedback terminal of the wireless charging circuit 02. The control circuit 03 is also used to control the operation of the wireless charging circuit 02 according to the current feedback signal of the wireless charging circuit 02. The feedback signal is used to indicate the current magnitude of the wireless charging circuit 02.

[0054] In one embodiment of this utility model, the wireless charging circuit 02 includes an operational amplifier OP, a first switching transistor Q1, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, and a first inductor L1.

[0055] The controlled terminal of the first switch Q1 is connected to the first signal output terminal of the control circuit 03. The first terminal of the first switch Q1 and one terminal of the first capacitor C1 are connected to one terminal of the first inductor L1. The other terminal of the first capacitor C1 and the other terminal of the first inductor L1 are connected to the first power supply terminal of the wireless charging circuit 02. The second terminal of the first switch Q1 and one terminal of the first resistor R1 are connected to the first input terminal of the operational amplifier OP. The other terminal of the first resistor R1 is grounded. The second input terminal of the operational amplifier OP, one terminal of the second resistor R2, and one terminal of the third resistor R3 are connected to one terminal of the second capacitor C2. The other terminal of the second resistor R2 is grounded. The other terminal of the third resistor R3, the other terminal of the second capacitor C2, and the output terminal of the operational amplifier OP are connected to the second signal input terminal of the control circuit 03.

[0056] In this embodiment, the first capacitor C1 and the first inductor L1 form an LC oscillation circuit. The control circuit 03 can output a first PWM signal to control the conduction frequency of the first switching transistor Q1, thereby controlling the transmission of the wireless charging signal of the wireless charging circuit 02. At this time, a current of corresponding intensity will flow through the first switching transistor Q1. The non-inverting input terminal of the operational amplifier OP can sample the current magnitude of the wireless charging circuit 02, which corresponds to the transmission intensity of the wireless charging signal. This sampled voltage is amplified by the operational amplifier OP and fed back to the second signal input terminal of the control circuit 03. The setting of the third resistor R3 and the second capacitor C2 can adjust the amplification gain. The control circuit 03 can receive this current feedback signal and, when the current feedback signal is greater than a preset value, reduce the duty cycle of the output first PWM signal or stop outputting the first PWM signal. Thus, the wireless charging circuit 02 in this embodiment has an overcurrent protection function, making it safer. The first switching transistor Q1 can be an NMOS transistor, which has a fast switching speed and can efficiently control the transmission of the wireless charging signal.

[0057] Please see Figure 1 In one embodiment of the present invention, the wireless charging circuit 02 further includes a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a third capacitor C3, and a fourth capacitor C4.

[0058] One end of the fourth resistor R4 is connected to the first signal output terminal of the control circuit 03. The other end of the fourth resistor R4 and one end of the fifth resistor R5 are connected to the controlled terminal of the first switch Q1. One end of the sixth resistor R6 and the second terminal of the first switch Q1 are connected to one end of the first resistor R1. The other end of the sixth resistor R6 and one end of the third capacitor C3 are connected to the first input terminal of the operational amplifier OP. One end of the fourth capacitor C4 and the positive power supply terminal of the operational amplifier OP are connected to the second power supply terminal of the wireless charging circuit 02. One end of the seventh resistor R7 is connected to the output terminal of the operational amplifier OP. The other end of the seventh resistor R7 is connected to the second signal input terminal of the control circuit 03. The other ends of the fourth capacitor C4, the third capacitor C3, and the fifth resistor R5 are grounded.

[0059] In this embodiment, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, and the seventh resistor R7 can be used for current limiting, and the third capacitor C3 and the fourth capacitor C4 can be used for filtering, which can enhance the stability of the circuit.

[0060] This utility model also proposes a disinfection box, which includes a switch box magnetic structure and a disinfection box charging circuit. The specific structure of the disinfection box charging circuit is as described in the above embodiments. Since this disinfection box 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 described in detail here.

[0061] Please see Figure 2 In one embodiment of this utility model, the disinfection box further includes:

[0062] Lighting fixtures (not shown in the figure) are used to generate the light source required for disinfection;

[0063] The boost converter circuit 04 has its power input terminal connected to the first power input terminal, its output terminal connected to the lamp, and its signal input terminal connected to the second signal output terminal of the control circuit 03.

[0064] The boost converter circuit 04 is used to convert DC power into AC drive power output to drive the lamps.

[0065] The control circuit 03 is also used to control the operation of the boost converter circuit 04 according to the switching signal.

[0066] In this embodiment, when the control circuit 03 determines that the disinfection box is in the open state based on the switch signal, it controls the boost converter circuit 04 to stop working. When the disinfection box is in the closed state, it controls the boost converter circuit 04 to start working. The control circuit 03 can control the working time of the boost converter circuit 04, for example, 10 minutes, and control the boost converter circuit 04 to stop working after the preset disinfection time is completed. When the disinfection box is in the open state, the boost converter circuit 04 is immediately controlled to stop working, and the preset disinfection time can be recalculated. Thus, this embodiment can prevent the lamp from emitting ultraviolet light or other light sources that could affect the user's health when the disinfection box is open.

[0067] Please see Figure 2 In one embodiment of this utility model, the boost converter circuit 04 includes a second switch Q2, a second inductor L2, a multivibrator AM, and a transformer TR;

[0068] The controlled terminal of the second switch Q2 is connected to the second signal output terminal of the control circuit 03. The first terminal of the second switch Q2 is grounded. The second terminal of the second switch Q2 is connected to one end of the second inductor L2. The second terminal of the second inductor L2 is connected to the input terminal of the multivibrator AM. The output terminal of the multivibrator AM is connected to the input terminal of the transformer TR. The output terminal of the transformer TR is connected to the lamp. The power supply terminal of the multivibrator AM is connected to the power input terminal of the boost converter circuit 04.

[0069] In this embodiment, the lamp can be a UV lamp. The control circuit 03 can send a second PWM signal to the controlled terminal of the second switching transistor Q2, causing the current to enter the multivibrator AM in the form of high-frequency pulses. This controls the multivibrator AM to generate a high-frequency voltage signal, which is then boosted by the transformer TR, ultimately outputting a high-frequency, high-voltage UV drive signal to the UV lamp to drive it to emit ultraviolet light for disinfection. In this embodiment, the boost converter circuit 04 can also include capacitors C6 and C7, and resistors R10 and R11 to improve circuit stability.

[0070] Please see Figure 2 In one embodiment of this utility model, the multivibrator AM includes an eighth resistor R8, a ninth resistor R9, a fifth capacitor C5, a first transistor Q3, and a second transistor Q4.

[0071] The emitter of the first transistor Q3 and the emitter of the second transistor Q4 are connected to the other end of the second inductor L2. The base of the first transistor Q3 and one end of the ninth resistor R9 are connected to the first primary terminal of the transformer TR. The base of the second transistor Q4 and one end of the eighth resistor R8 are connected to the fifth primary terminal of the transformer TR. The other ends of the ninth resistor R9, the other ends of the eighth resistor R8, and the power supply terminal of the multivibrator AM are connected to the third primary terminal of the transformer TR. The collector of the first transistor Q3 and one end of the fifth capacitor C5 are connected to the second primary terminal of the transformer TR. The collector of the second transistor Q4 and the other end of the fifth capacitor C5 are connected to the fourth primary terminal of the transformer TR.

[0072] In this embodiment, when the multivibrator AM is working, one transistor is in the on state and the other transistor is in the off state. The fifth capacitor C5 charges and discharges to generate a high-frequency voltage signal. The eighth resistor R8 and the ninth resistor R9 can be used for current limiting. Thus, this embodiment can convert DC power supply into AC drive power output.

[0073] Please see Figure 2 In one embodiment of this utility model, the disinfection box further includes:

[0074] The voltage regulator circuit 05 has its input terminal connected to the power input terminal, and its output terminal connected to the power supply terminals of the Hall switch circuit 01, the wireless charging circuit 02, and the control circuit 03, respectively. The voltage regulator circuit 05 is used to regulate the DC power input from the first power input terminal and then output it.

[0075] In this embodiment, the voltage regulator circuit 05 may include a voltage regulator chip U2 and capacitors C9 to C11. The voltage regulator chip U2 can maintain a stable output voltage even when the input voltage fluctuates. Even if the DC power supply voltage input from the USB interface changes, the voltage regulator chip U2 can ensure that the voltage output to subsequent circuits remains within a stable range, thus guaranteeing the safe operation of the wireless charging process.

[0076] Please see Figure 2 In one embodiment of this utility model, the disinfection box further includes:

[0077] Indicator circuit 06 is connected to the third signal output terminal of control circuit 03. Indicator circuit 06 is used to control the lighting state of the indicator light according to the indicator light control signal output by control circuit 03.

[0078] In this embodiment, the indicator light circuit 06 may include a resistor R14 and a light-emitting diode DL. The light-emitting diode DL can emit different colors of light to indicate the status of the disinfection box. For example, green light indicates that the disinfection box is in the closed state, disinfecting and charging the cleaning equipment, while red light indicates that the disinfection box is in the open state, stopping disinfection and charging.

[0079] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sterilization case charging circuit, characterized by, The disinfection box includes a switch box magnetic structure, and the disinfection box charging circuit includes: The first power input terminal is used to input DC power. A Hall effect switch circuit is provided, wherein the power supply terminal of the Hall effect switch circuit is connected to the first power input terminal. The Hall effect switch circuit is used to detect the action of the magnetic structure of the switch box and output a corresponding switch signal. The switch signal is used to indicate whether the disinfection box is in an open or closed state. A wireless charging circuit, wherein the power supply terminal of the wireless charging circuit is connected to the first power input terminal, and the output terminal of the wireless charging circuit is used to wirelessly connect to the charging signal receiving terminal of the charging device; the wireless charging circuit is used to convert the DC power supply into a wireless charging signal output to power the charging device. The control circuit has its power supply terminal connected to the first power input terminal, its first signal input terminal connected to the signal output terminal of the Hall switch circuit, and its first signal output terminal connected to the signal input terminal of the wireless charging circuit. The control circuit is used to control the operation of the wireless charging circuit according to the switch signal.

2. The sterilization caddy charging circuit of claim 1, wherein, The second signal input terminal of the control circuit is connected to the signal feedback terminal of the wireless charging circuit. The control circuit is also used to control the operation of the wireless charging circuit according to the current feedback signal of the wireless charging circuit; the feedback signal is used to indicate the current magnitude of the wireless charging circuit.

3. The sterilization caddy charging circuit of claim 2, wherein, The wireless charging circuit includes an operational amplifier, a first switching transistor, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a first inductor; The controlled terminal of the first switching transistor is connected to the first signal output terminal of the control circuit. The first terminal of the first switching transistor, one terminal of the first capacitor, and one terminal of the first inductor are connected to each other. The other terminals of the first capacitor and the first inductor are connected to the first power supply terminal of the wireless charging circuit. The second terminal of the first switching transistor and one terminal of the first resistor are connected to the first input terminal of the operational amplifier. The other terminal of the first resistor is grounded. The second input terminal of the operational amplifier, one terminal of the second resistor, and one terminal of the third resistor are connected to one terminal of the second capacitor. The other terminal of the second resistor is grounded. The other terminal of the third resistor, the other terminal of the second capacitor, and the output terminal of the operational amplifier are connected to the second signal input terminal of the control circuit.

4. The sterilization caddy charging circuit of claim 3, wherein, The wireless charging circuit also includes a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a third capacitor, and a fourth capacitor; One end of the fourth resistor is connected to the first signal output terminal of the control circuit. The other end of the fourth resistor and one end of the fifth resistor are connected to the controlled terminal of the first switching transistor. One end of the sixth resistor, the second terminal of the first switching transistor, and one end of the first resistor are connected. The other end of the sixth resistor and one end of the third capacitor are connected to the first input terminal of the operational amplifier. One end of the fourth capacitor and the positive power supply terminal of the operational amplifier are connected to the second power supply terminal of the wireless charging circuit. One end of the seventh resistor is connected to the output terminal of the operational amplifier. The other end of the seventh resistor is connected to the second signal input terminal of the control circuit. The other ends of the fourth capacitor, the third capacitor, and the fifth resistor are grounded.

5. A sterilization cassette characterized by, The disinfection box includes a switch box magnetic structure and a disinfection box charging circuit as described in any one of claims 1 to 4.

6. The sterilization box of claim 5, wherein, The disinfection box also includes: Lighting fixtures, used to generate the light source needed for disinfection; A boost converter circuit, wherein the power input terminal of the boost converter circuit is connected to the first power input terminal, the output terminal of the boost converter circuit is connected to the lamp, and the signal input terminal of the boost converter circuit is connected to the second signal output terminal of the control circuit; The boost converter circuit is used to convert the DC power supply into AC drive power output to drive the lamp. The control circuit is also used to control the operation of the boost converter circuit according to the switching signal.

7. The sterilization box of claim 6, wherein, The boost converter circuit includes a second switching transistor, a second inductor, a multivibrator, and a transformer; The controlled terminal of the second switching transistor is connected to the second signal output terminal of the control circuit. The first terminal of the second switching transistor is grounded. The second terminal of the second switching transistor is connected to one end of the second inductor. The second end of the second inductor is connected to the input terminal of the multivibrator. The output terminal of the multivibrator is connected to the input terminal of the transformer. The output terminal of the transformer is connected to the lamp. The power supply terminal of the multivibrator is connected to the power input terminal of the boost converter circuit.

8. The sterilization box of claim 7, wherein, The multivibrator includes an eighth resistor, a ninth resistor, a fifth capacitor, a first transistor, and a second transistor; The emitter of the first transistor and the emitter of the second transistor are connected to the other end of the second inductor. The base of the first transistor and one end of the ninth resistor are connected to the first primary terminal of the transformer. The base of the second transistor and one end of the eighth resistor are connected to the fifth primary terminal of the transformer. The other end of the ninth resistor, the other end of the eighth resistor, and the power supply terminal of the multivibrator are connected to the third primary terminal of the transformer. The collector of the first transistor and one end of the fifth capacitor are connected to the second primary terminal of the transformer. The collector of the second transistor and the other end of the fifth capacitor are connected to the fourth primary terminal of the transformer.

9. The disinfection box as described in claim 5, characterized in that, Also includes: A voltage regulator circuit is provided, wherein the input terminal of the voltage regulator circuit is connected to the power input terminal, and the output terminal of the voltage regulator circuit is connected to the power supply terminal of the Hall switch circuit, the power supply terminal of the wireless charging circuit, and the power supply terminal of the control circuit, respectively; the voltage regulator circuit is used to regulate the DC power input from the first power input terminal and output it.

10. The sterilization box of claim 5, wherein, Also includes: An indicator light circuit is provided, which is connected to the third signal output terminal of the control circuit. The indicator light circuit is used to control the lighting state of the indicator light according to the indicator light control signal output by the control circuit.

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