Electric toothbrush disinfection device

Abstract

The invention discloses an electric toothbrush disinfection device, and relates to the technical field of disinfection. The electric toothbrush disinfection device comprises a charging base which is used for charging an electric toothbrush under the condition that the charging base is electrically connected with the electric toothbrush; a plurality of ultraviolet lamps are arranged on the inner side of the protective cover; the main control module is arranged in the charging base; the human body induction module is arranged in the charging base, and the human body induction module is used for detecting whether a to-be-detected target exists in a preset range or not and outputting a corresponding human body detection signal; wherein the main control module is used for controlling the working states of the plurality of ultraviolet lamps according to a human body detection signal under the condition that the protective cover is electrically connected with the charging base; when the human body detection signal correspondingly indicates that the to-be-detected target exists in the preset range, the ultraviolet lamps are controlled to stop working; and when the human body detection signal corresponds to that the to-be-detected target does not exist in the preset range, controlling the plurality of ultraviolet lamps to work normally. The invention aims to improve the disinfection safety of the electric toothbrush.

Description

Technical Field

[0001] This invention relates to the field of disinfection technology, and in particular to an electric toothbrush disinfection device. Background Technology

[0002] As tools that come into direct contact with the mouth, toothbrush heads are prone to harboring bacteria and microorganisms. Although toothpaste contains antibacterial ingredients, toothbrushes often become damp after use and may be stored in warm, humid environments like bathrooms, conditions highly conducive to bacterial growth. Therefore, even between brushing sessions, bacteria can multiply significantly on the toothbrush head. For this reason, regular disinfection of toothbrushes is crucial.

[0003] Ultraviolet (UV) lamp disinfection is an effective method of sterilization. UV light, especially the UVC band, can damage the DNA or RNA structure of microorganisms such as bacteria and viruses, thus effectively killing or inactivating them. Therefore, using UV lamps to disinfect toothbrush heads can significantly reduce the number of pathogens on the brush head, lowering the risk of disease transmission through toothbrushes.

[0004] However, shielding the human body from excessive UVC radiation can cause skin erythema, dryness, aging, and even increase the risk of skin cancer. Furthermore, direct eye contact or exposure to UVC light sources can cause serious eye damage. Therefore, existing electric toothbrush sterilization devices have safety inadequacies. Summary of the Invention

[0005] The main objective of this invention is to provide an electric toothbrush sterilization device, which aims to improve the safety of electric toothbrush sterilization.

[0006] To achieve the above objectives, the present invention provides an electric toothbrush sterilization device, the electric toothbrush sterilization device comprising:

[0007] A charging base for charging the electric toothbrush when electrically connected to it;

[0008] A protective cover, the inside of which is provided with multiple ultraviolet lamps;

[0009] The main control module is disposed in the charging base;

[0010] A human body sensing module is disposed in the charging base. The human body sensing module is used to detect whether there is a target to be tested within a preset range and output a corresponding human body detection signal.

[0011] The main control module is used to control the working status of multiple ultraviolet lamps according to the human body detection signal when the protective cover is electrically connected to the charging base; to control the multiple ultraviolet lamps to stop working when the human body detection signal corresponds to the presence of a target to be tested within a preset range; and to control the multiple ultraviolet lamps to work normally when the human body detection signal corresponds to the absence of a target to be tested within the preset range.

[0012] In one embodiment, the charging base further includes a connection detection module disposed in the charging base; the output terminal of the connection detection module is electrically connected to the main control module; the connection detection module is used to output a corresponding connection detection signal when the electric toothbrush and / or the protective cover is electrically connected to the charging base.

[0013] In one embodiment, the connection detection module includes:

[0014] A first voltage detection circuit is configured to detect the electrical connection status between the charging base and the electric toothbrush and output a first voltage detection signal.

[0015] The second voltage detection circuit has its input terminal electrically connected to the second power supply terminal of the charging base, and its output terminal electrically connected to the main control module. The second voltage detection circuit is used to detect the electrical connection status between the charging base and the protective cover, and outputs a second voltage detection signal.

[0016] In one embodiment, the first voltage detection circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a first operational amplifier, a first capacitor, and a second capacitor; the second voltage detection circuit includes a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second operational amplifier, a third capacitor, and a fourth capacitor.

[0017] Wherein, the first end of the first resistor is electrically connected to the first power supply terminal; the second end of the first resistor is electrically connected to the first end of the second resistor and the first end of the third resistor; the second end of the second resistor is grounded; the second end of the third resistor is electrically connected to the first end of the first capacitor and the non-inverting input terminal of the first operational amplifier; the second end of the first capacitor is grounded; the inverting input terminal of the first operational amplifier is electrically connected to the output terminal of the first operational amplifier and the first end of the fourth resistor; the second end of the fourth resistor is electrically connected to the first end of the second capacitor and the main control module; the second end of the second capacitor is grounded; the first end of the fifth resistor is electrically connected to the second unit terminal; the second end of the fifth resistor is electrically connected to the first end of the sixth resistor and the first end of the seventh resistor; the second end of the sixth resistor is grounded; the second end of the seventh resistor is electrically connected to the first end of the third capacitor and the non-inverting input terminal of the second operational amplifier; the second end of the third capacitor is grounded; the inverting input terminal of the second operational amplifier is electrically connected to the output terminal of the second operational amplifier and the first end of the eighth resistor; the second end of the eighth resistor is electrically connected to the first end of the fourth capacitor and the main control module; the second end of the fourth capacitor is grounded.

[0018] In one embodiment, the main control module is configured such that if the fluctuation state of the second voltage detection signal reaches a first preset fluctuation state within a preset time period, it confirms that the charging base and the protective cover are in a normal connection state; if the fluctuation state of the second voltage detection signal does not reach the first preset fluctuation state within a preset time period, it confirms that the charging base and the protective cover are in an abnormal connection state.

[0019] In one embodiment, the protective cover is made of a material that does not allow ultraviolet light to pass through.

[0020] In one embodiment, the electric toothbrush sterilization device further includes a clock circuit, the output of which is electrically connected to the main control module; the clock circuit is used to output a clock signal.

[0021] The main control module is also used to control the operation of multiple ultraviolet lamps according to the clock signal and the preset duration.

[0022] In one embodiment, the electric toothbrush sterilization device further includes a temperature detection circuit, which is disposed on one side of the clock circuit; the output terminal of the temperature detection circuit is electrically connected to the main control module; the temperature detection circuit is used to detect the ambient temperature of the clock circuit and output a temperature detection signal.

[0023] The main control module is also used to confirm the deviation of the clock signal based on the temperature detection signal.

[0024] In one embodiment, the electric toothbrush sterilization device includes a prompting circuit, the input terminal of which is electrically connected to the main control module; the prompting circuit is used to output a corresponding prompting signal according to the prompting control signal output by the main control module.

[0025] This invention provides an electric toothbrush disinfection device that effectively improves the safety of electric toothbrush disinfection. The device includes a charging base, a protective cover, a main control module, and a human body sensor module. The charging base, when electrically connected to the electric toothbrush and the protective cover, provides power to both. Multiple ultraviolet (UV) lamps are installed inside the protective cover to disinfect the electric toothbrush while they are operating simultaneously. It's important to note that the UV lamps do not immediately stop working after power is cut off; instead, they gradually dim. Therefore, the human body sensor module detects the presence of a target within a preset range. When the detection signal indicates the presence of a target, the multiple UV lamps stop operating; when the detection signal indicates the absence of a target, the lamps resume normal operation. This method effectively prevents users from removing the protective cover while the UV lamps are still operating, thus avoiding potential harm from the UV lamps and significantly improving the safety of UV disinfection of electric toothbrushes. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the electric toothbrush disinfection device of the present invention;

[0028] Figure 2 This is a schematic diagram of a module of an embodiment of the electric toothbrush disinfection device of the present invention;

[0029] Figure 3 This is a circuit diagram of an embodiment of the electric toothbrush sterilization device of the present invention.

[0030] Explanation of icon numbers:

[0031] 10. Charging base; 20. Protective cover; 30. Main control module; 40. Human body sensing module; 50. Connection detection module; 51. First voltage detection circuit; 52. Second voltage detection circuit; R1-R8, first resistor-eighth resistor; C1-C4, first capacitor-fourth capacitor.

[0032] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention 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 indication will also change accordingly.

[0035] Furthermore, the use of terms such as "first" and "second" in this invention 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 with "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 invention.

[0036] As tools that come into direct contact with the mouth, toothbrush heads are prone to harboring bacteria and microorganisms. Although toothpaste contains antibacterial ingredients, toothbrushes often become damp after use and may be stored in warm, humid environments like bathrooms, conditions highly conducive to bacterial growth. Therefore, even between brushing sessions, bacteria can multiply significantly on the toothbrush head. For this reason, regular disinfection of toothbrushes is crucial.

[0037] Ultraviolet (UV) lamp disinfection is an effective method of sterilization. UV light, especially the UVC band, can damage the DNA or RNA structure of microorganisms such as bacteria and viruses, thus effectively killing or inactivating them. Therefore, using UV lamps to disinfect toothbrush heads can significantly reduce the number of pathogens on the brush head, lowering the risk of disease transmission through toothbrushes.

[0038] However, shielding the human body from excessive UVC radiation can cause skin erythema, dryness, aging, and even increase the risk of skin cancer. Furthermore, direct eye contact or exposure to UVC light sources can cause serious eye damage. Therefore, existing electric toothbrush sterilization devices have safety inadequacies.

[0039] To solve the above problems, refer to Figure 1 This invention proposes an electric toothbrush sterilization device, which includes:

[0040] A charging base 10 is used to charge the electric toothbrush when it is electrically connected to the electric toothbrush.

[0041] Protective cover 20, the inner side of which is provided with multiple ultraviolet lamps;

[0042] Main control module 30, wherein the main control module 30 is disposed in the charging base 10;

[0043] Human body sensing module 40 is disposed in the charging base 10. The human body sensing module 40 is used to detect whether there is a target to be tested within a preset range and output a corresponding human body detection signal.

[0044] The main control module 30 is used to control the working status of multiple ultraviolet lamps according to the human body detection signal when the protective cover 20 is electrically connected to the charging base 10; to control the multiple ultraviolet lamps to stop working when the human body detection signal corresponds to the presence of a target to be tested within a preset range; and to control the multiple ultraviolet lamps to work normally when the human body detection signal corresponds to the absence of a target to be tested within the preset range.

[0045] In this embodiment, the charging base 10 is provided with corresponding power input and power output terminals. The power input terminal is used to connect to an external power source, such as AC power or a storage battery; the power output terminal is used to connect to the power supply terminals of the electric toothbrush and the protective cover 20, respectively. It is understood that the input voltage of the power input terminal is not the same as the charging voltage of the electric toothbrush and the supply voltage of the protective cover 20, and the charging voltage of the electric toothbrush is also not the same as the supply voltage of the protective cover 20. Therefore, the charging base 10 is provided with a corresponding voltage conversion circuit to convert the first voltage input at the power input terminal into a second voltage and a third voltage, respectively, and output them to the power output terminal, thereby enabling separate power supply to the electric toothbrush and the protective cover 20.

[0046] In this embodiment, the protective cover 20 is made of an opaque ultraviolet light material, and the space it can accommodate after being connected to the charging base 10 is sufficient to hold the electric toothbrush. The opaque ultraviolet light material can be made of materials such as polycarbonate or acrylic resin. It is important to understand that the most critical part of the electric toothbrush requiring disinfection is the brush head, especially the bristles and the connection between the brush head and the handle, where toothpaste, food residue, and bacteria from the mouth can easily remain. Therefore, most of the multiple ultraviolet lamps in the protective cover 20 need to be positioned on the brush head area corresponding to the electric toothbrush after it is connected to the charging base 10, to achieve targeted disinfection of the electric toothbrush. Furthermore, the power circuits for the multiple ultraviolet lamps in the protective cover 20 need to be connected to the power supply terminal of the protective cover 20 so that the protective cover 20 supplies power to the multiple ultraviolet lamps when electrically connected to the charging base 10.

[0047] In this embodiment, the main control module 30 can be implemented using a main controller, such as a DSP (Digital Signal Processor), MCU (Microcontroller Unit), FPGA (Field Programmable Gate Array), or SOC (System On Chip).

[0048] In this embodiment, the human body sensing module 40 can be implemented using an infrared detection module, an ultrasonic sensor, or the like. The human body sensing module is located in the charging base 10 and is used to detect the presence of a target within a preset range and output a corresponding human body detection signal. It is important to note that the human body sensing module 40 is not always operational; it only operates when the charging base 10 is electrically connected to both the electric toothbrush and the protective cover 20. This is because ultraviolet lamps, especially mercury vapor lamps, do not immediately cool back to a liquid or solid state after power is cut off; the gas inside the lamp will continue to emit some residual light until it is completely cooled. Therefore, the human body sensing module 40 needs to detect the preset range to ensure that the ultraviolet lamp on the protective cover 20 is off when the user removes it. The main control module 30 first confirms whether the charging base 10 is electrically connected to the electric toothbrush, and then, if the charging base 10 is electrically connected to the electric toothbrush, confirms whether the protective cover 20 is electrically connected to the charging base 10. The charging base 10 supplies power to the protective cover 20 only when the protective cover 20 is electrically connected to the charging base 10, thereby enabling the multiple ultraviolet lamps to operate. Furthermore, the control module only activates the human body sensing module 40 when the protective cover 20 is electrically connected to the charging base 10 to avoid energy waste.

[0049] When the charging base 10 is electrically connected to the electric toothbrush and the protective cover 20, it provides power to both. Multiple ultraviolet (UV) lamps are installed inside the protective cover 20 to disinfect the electric toothbrush while multiple UV lamps are operating. It is important to note that the UV lamps do not immediately stop working after power is cut off, but gradually dim. Therefore, the human body sensing module 40 detects the presence of a target within a preset range. When the human body detection signal corresponds to the presence of a target within the preset range, the multiple UV lamps are controlled to stop working; when the human body detection signal corresponds to the absence of a target within the preset range, the multiple UV lamps are controlled to operate normally. This method effectively prevents users from removing the protective cover 20 while the UV lamps are still operating inside, thus avoiding potential harm to the human body from the UV lamps and effectively improving the safety of disinfecting the electric toothbrush with UV lamps.

[0050] refer to Figure 2 In one embodiment of the present invention, the charging base 10 further includes a connection detection module 50, which is disposed in the charging base 10; the output terminal of the connection detection module 50 is electrically connected to the main control module 30; the connection detection module 50 is used to output a corresponding connection detection signal when the electric toothbrush and / or the protective cover 20 are electrically connected to the charging base 10.

[0051] In this embodiment, the control module needs to confirm the connection status of the electric toothbrush and / or the protective cover 20 with the charging base 10, and then control whether the charging base 10 needs to supply power to the protective cover 20 or whether the working state of the human body sensing module 40 needs to be switched. The output terminal of the connection detection module 50 is electrically connected to the main control circuit, so that when the connection detection module 50 detects that the electric toothbrush and / or the protective cover 20 is electrically connected to the charging base 10, it outputs a corresponding connection detection signal to the control module. The connection detection module 50 can be implemented using a hardware trigger circuit, voltage detection circuit, current detection circuit, etc.

[0052] Optionally, the connection detection module 50 includes:

[0053] A first voltage detection circuit 51 is configured to detect the electrical connection status between the charging base 10 and the electric toothbrush, and output a first voltage detection signal.

[0054] The second voltage detection circuit 52 has its input terminal electrically connected to the second power supply terminal of the charging base 10, and its output terminal electrically connected to the main control module 30. The second voltage detection circuit 52 is used to detect the electrical connection status between the charging base 10 and the protective cover 20, and outputs a second voltage detection signal.

[0055] In this embodiment, the connection detection module 50 is implemented using a voltage detection circuit. An electrical connection is established between the electric toothbrush and the charging base 10 via metal contacts. The voltage detection circuit can detect voltage changes in the charging circuit, thereby confirming whether an electrical connection has been established between the electric toothbrush and the charging base 10. Specifically, the first voltage detection circuit 51 detects the electrical connection status between the charging base 10 and the electric toothbrush, and the second voltage detection circuit 52 detects the electrical connection status between the charging base 10 and the protective cover 20. The main control module 30, by receiving the first voltage detection signal, can confirm the electrical connection status between the charging base 10 and the electric toothbrush, and then control the charging base 10 to supply power to the protective cover 20. By receiving the second voltage detection signal, it can confirm the electrical connection status between the charging base 10 and the protective cover 20.

[0056] Optionally, refer to Figure 3 The first voltage detection circuit 51 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first operational amplifier, a first capacitor C1, and a second capacitor C2; the second voltage detection circuit 52 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second operational amplifier, a third capacitor C3, and a fourth capacitor C4.

[0057] Wherein, the first end of the first resistor R1 is electrically connected to the first power supply terminal; the second end of the first resistor R1 is electrically connected to the first end of the second resistor R2 and the first end of the third resistor R3; the second end of the second resistor R2 is grounded; the second end of the third resistor R3 is electrically connected to the first end of the first capacitor C1 and the non-inverting input terminal of the first operational amplifier; the second end of the first capacitor C1 is grounded; the inverting input terminal of the first operational amplifier is electrically connected to the output terminal of the first operational amplifier and the first end of the fourth resistor R4; the second end of the fourth resistor R4 is electrically connected to the first end of the second capacitor C2 and the main control module 30; the second end of the second capacitor C2 is grounded. Ground; the first end of the fifth resistor R5 is electrically connected to the second unit terminal, and the second end of the fifth resistor R5 is electrically connected to the first end of the sixth resistor R6 and the first end of the seventh resistor R7; the second end of the sixth resistor R6 is grounded; the second end of the seventh resistor R7 is electrically connected to the first end of the third capacitor C3 and the non-inverting input terminal of the second operational amplifier; the second end of the third capacitor C3 is grounded; the inverting input terminal of the second operational amplifier is electrically connected to the output terminal of the second operational amplifier and the first end of the eighth resistor R8; the second end of the eighth resistor R8 is electrically connected to the first end of the fourth capacitor C4 and the main control module 30; the second end of the fourth capacitor C4 is grounded.

[0058] In this embodiment, the first voltage sampling circuit is taken as an example. The voltage signal is divided by the first resistor R1 and then connected in parallel with the third resistor R3 to adjust the magnitude of the input signal to adapt to the input range of the operational amplifier. The adjusted input signal enters the non-inverting input terminal of the first operational amplifier through the third resistor R3. The first operational amplifier is a non-inverting operational amplifier, and its output voltage is in phase and equal to the input voltage. Therefore, the output voltage of the operational amplifier is in phase and equal to the input voltage. The output voltage is output to the main control module 30 after passing through the second filter. The function of the second capacitor C2 is to filter out high-frequency noise and ensure the sampling accuracy of the main control module 30. The fourth resistor R4 and the second capacitor C2 form an RC low-pass filter, which can further filter out high-frequency noise and improve signal quality. The fourth resistor R4 and the second capacitor C2 also form an RC time constant, which determines the cutoff frequency of the filter. The lower the cutoff frequency, the better the filtering effect, but the response speed will also be slower. The values ​​of the fourth resistor R4 and the second capacitor C2 can be adjusted according to actual needs to achieve the best filtering effect and response speed. The second resistor R2 and the first capacitor C1 form an RC filter to suppress power supply noise. Power supply noise can affect the performance of the operational amplifier, so it needs to be suppressed. The values ​​of the second resistor R2 and the first capacitor C1 can also be adjusted according to actual needs to achieve the best filtering effect and response speed.

[0059] In one embodiment of the present invention, the main control module 30 is configured such that if the fluctuation state of the second voltage detection signal reaches a first preset fluctuation state within a preset time period, it confirms that the charging base 10 and the protective cover 20 are in a normal connection state; if the fluctuation state of the second voltage detection signal does not reach the first preset fluctuation state within a preset time period, it confirms that the charging base 10 and the protective cover 20 are in an abnormal connection state.

[0060] In this embodiment, the first preset fluctuation represents the boundary condition for whether there is an electrical connection between the charging base 10 and the protective cover 20. Therefore, the main control module 30 can confirm the connection status between the charging base 10 and the protective cover 20 by confirming the fluctuation state of the second voltage detection signal within a preset time period. For example, if the voltage corresponding to the second voltage detection signal read by the main control module 30 within the preset time period exceeds 3V, it is considered that the protective cover 20 has been correctly placed on the charging base 10; if it is lower than this value, it indicates that no effective electrical connection has been established between the protective cover 20 and the charging base 10.

[0061] In one embodiment of the present invention, the electric toothbrush sterilization device further includes a clock circuit, the output terminal of which is electrically connected to the main control module 30; the clock circuit is used to output a clock signal.

[0062] The main control module 30 is also used to control the operation of multiple ultraviolet lamps according to the clock signal and the preset duration.

[0063] In this embodiment, it is understood that the multiple ultraviolet lamps in the protective cover 20 are not continuously operating, but rather stop working after the disinfection of the electric toothbrush is completed. Therefore, the electric toothbrush disinfection device also includes a clock circuit to control the multiple ultraviolet lamps in the protective cover 20 to stop working after a preset disinfection time, ensuring that the electric toothbrush is thoroughly disinfected and preventing the continuous operation of the multiple ultraviolet lamps in the protective cover 20. However, the crystal resonator used inside the clock circuit typically relies on the physical properties of specific materials to generate a stable clock signal. However, the physical properties of these materials change with temperature; for example, the resonant frequency of a quartz crystal increases or decreases with temperature. Therefore, the clock signal output by the clock circuit will fluctuate accordingly with temperature.

[0064] Optionally, the electric toothbrush sterilization device further includes a temperature detection circuit, which is located on one side of the clock circuit; the output terminal of the temperature detection circuit is electrically connected to the main control module 30; the temperature detection circuit is used to detect the ambient temperature of the clock circuit and output a temperature detection signal.

[0065] The main control module 30 is also used to confirm the deviation of the clock signal based on the temperature detection signal.

[0066] In this embodiment, it is understood that the clock deviation of the clock circuit can be determined by confirming the change in ambient temperature corresponding to the crystal resonator used inside the clock circuit. The output terminal of the temperature detection circuit is electrically connected to the main control module 30, thereby outputting a corresponding temperature detection signal to the main control module 30. The main control module 30 can determine the clock signal deviation based on the temperature and deviation coefficient corresponding to the temperature detection signal, according to a preset deviation coefficient for the crystal oscillator in the clock circuit at different temperatures.

[0067] Optionally, the clock circuit is disposed in the charging base 10; the main control module 30 is further configured to:

[0068] When the ambient temperature acquisition interval of the clock circuit reaches the preset acquisition period, the ambient temperature of the clock circuit is acquired.

[0069] If the total duration of the cumulative ambient temperature acquisition interval does not meet the preset calibration period, the deviation of the clock signal output by the clock circuit under each ambient temperature acquisition interval reaching the preset acquisition period is accumulated to obtain the cumulative deviation of the clock signal output by the clock circuit.

[0070] If the total duration of the cumulative ambient temperature acquisition interval reaches the preset acquisition cycle and meets the preset calibration cycle, the cumulative deviation is confirmed as the total deviation of the clock signal output by the clock circuit within the calibration cycle.

[0071] The actual clock value output by the clock circuit is calibrated based on the total deviation.

[0072] In this embodiment, it is understood that the ambient temperature is not constantly being acquired. Instead, a preset sampling period is set. The main control module 30 will only acquire the ambient temperature detection signal from the temperature detection circuit and confirm the current ambient temperature when the ambient temperature acquisition interval reaches the preset sampling period. It is important to note that the preset sampling period also corresponds to the clock deviation. For example, a preset sampling period of 1 second means that the ambient temperature is acquired when the ambient temperature acquisition interval reaches 1 second, and also means that the clock deviation of the confirmed clock circuit at this time is the deviation amount of that 1 second. It is important to note that the timing of the ambient temperature acquisition interval is implemented by a hardware timer in the control module.

[0073] In this embodiment, after confirming the clock deviation of the clock circuit, clock calibration is not performed immediately. For example, if the preset sampling period is 1 second, the control device will not calibrate the clock circuit every second. Frequent calibration processes would consume the processing resources and time of the main control module 30, potentially causing the calibration process to fail to respond to other important tasks or interruptions in a timely manner, thus affecting the real-time performance and overall performance of the system. Furthermore, each calibration operation consumes additional energy and accelerates circuit aging. Therefore, this embodiment sets a preset calibration period to accumulate the clock deviation corresponding to each preset sampling period when the total duration of the accumulated preset sampling periods does not meet the preset calibration period requirement, thereby obtaining the accumulated deviation. When the total duration of the accumulated preset sampling periods meets the preset calibration period requirement, the accumulated deviation is confirmed as the total deviation within the preset calibration period. For example, if the preset calibration period is 1 hour, it means that the clock deviation corresponding to each preset sampling period needs to be accumulated 3600 times to obtain the accumulated deviation, which is then confirmed as the total deviation within the preset calibration period. The main control module 30 performs clock calibration on the clock circuit based on the total deviation.

[0074] In one embodiment of the present invention, the electric toothbrush sterilization device includes a prompting circuit, the input terminal of which is electrically connected to the main control module 30; the prompting circuit is used to output a corresponding prompting signal according to the prompting control signal output by the main control module 30.

[0075] In this embodiment, a prompting circuit is set up, and its input terminal is electrically connected to the main control module 30. This allows the system to receive prompting control signals from the main control module 30 and output corresponding prompting signals to inform the user of the current operating status of the electric toothbrush sterilizer. The prompting circuit can be implemented using an LED prompting circuit or a voice prompting circuit.

[0076] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An electric toothbrush sterilizing device, characterized by, The electric toothbrush disinfection device comprises: a charging base for charging the electric toothbrush when electrically connected with the electric toothbrush; a protective cover with multiple ultraviolet lamps inside; a main control module arranged in the charging base; a human body sensing module arranged in the charging base, the human body sensing module being used for detecting whether a target to be detected exists within a preset range and outputting a corresponding human body detection signal; wherein, the main control module is used for controlling the working state of the multiple ultraviolet lamps according to the human body detection signal when the protective cover is electrically connected with the charging base; the multiple ultraviolet lamps are controlled to stop working when the human body detection signal corresponds to the target to be detected existing within the preset range; and the multiple ultraviolet lamps are controlled to normally work when the human body detection signal corresponds to the target to be detected not existing within the preset range.

2. The electric toothbrush sterilizing device of claim 1, wherein The charging base further comprises a connection detection module arranged in the charging base; an output end of the connection detection module is electrically connected with the main control module; and the connection detection module is used for outputting a corresponding connection detection signal when the electric toothbrush and / or the protective cover is electrically connected with the charging base.

3. The electric toothbrush sterilizing apparatus as claimed in claim 2, wherein The connection detection module comprises: a first voltage detection circuit, an input end of the first voltage detection circuit being electrically connected with a first power supply end of the charging base, and an output end of the first voltage detection circuit being electrically connected with the main control module; the first voltage detection circuit being used for detecting the electrical connection state between the charging base and the electric toothbrush and outputting a first voltage detection signal; a second voltage detection circuit, an input end of the second voltage detection circuit being electrically connected with a second power supply end of the charging base, and an output end of the second voltage detection circuit being electrically connected with the main control module; the second voltage detection circuit being used for detecting the electrical connection state between the charging base and the protective cover and outputting a second voltage detection signal.

4. The electric toothbrush sterilizing apparatus as claimed in claim 3, wherein The first voltage detection circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first operational amplifier, a first capacitor and a second capacitor; and the second voltage detection circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a second operational amplifier, a third capacitor and a fourth capacitor. The first end of the first resistor is electrically connected with the first power supply end, and the second end of the first resistor is electrically connected with the first end of the second resistor and the first end of the third resistor; the second end of the second resistor is grounded; the second end of the third resistor is electrically connected with the first end of the first capacitor and the positive input end of the first operational amplifier; the second end of the first capacitor is grounded; the inverting input end of the first operational amplifier is electrically connected with the output end of the first operational amplifier and the first end of the fourth resistor; the second end of the fourth resistor is electrically connected with the first end of the second capacitor and the master control module; the second end of the second capacitor is grounded; the first end of the fifth resistor is electrically connected with the second unit end, and the second end of the fifth resistor is electrically connected with the first end of the sixth resistor and the first end of the seventh resistor; the second end of the sixth resistor is grounded; the second end of the seventh resistor is electrically connected with the first end of the third capacitor and the positive input end of the second operational amplifier; the second end of the third capacitor is grounded; the inverting input end of the second operational amplifier is electrically connected with the output end of the second operational amplifier and the first end of the eighth resistor; the second end of the eighth resistor is electrically connected with the first end of the fourth capacitor and the master control module; and the second end of the fourth capacitor is grounded.

5. The electric toothbrush sterilizing apparatus as claimed in claim 3, wherein The master control module is configured to confirm that the charging base and the protective cover are in a normal connection state when the fluctuation state of the second voltage detection signal reaches a first preset fluctuation state within a preset time length. The master control module is configured to confirm that the charging base and the protective cover are in an abnormal connection state when the fluctuation state of the second voltage detection signal does not reach the first preset fluctuation state within the preset time length.

6. The electric toothbrush sterilizing apparatus as claimed in claim 1, wherein The protective cover is made of ultraviolet light-proof material.

7. The electric toothbrush sterilizing apparatus as claimed in claim 1, wherein The electric toothbrush sterilization device further comprises a clock circuit, an output end of the clock circuit is electrically connected with the master control module; the clock circuit is used for outputting a clock signal. The master control module is further configured to control the plurality of ultraviolet lamps to work according to the clock signal and a preset time length.

8. The electric toothbrush sterilizing apparatus as claimed in claim 7, wherein the sterilizing unit comprises a UV lamp. The electric toothbrush sterilization device further comprises a temperature detection circuit, the temperature detection circuit is arranged on one side of the clock circuit; an output end of the temperature detection circuit is electrically connected with the master control module; the temperature detection circuit is used for detecting the ambient temperature of the clock circuit and outputting a temperature detection signal. The master control module is further configured to confirm the deviation amount of the clock signal according to the temperature detection signal.

9. The electric toothbrush sterilizing apparatus as claimed in claim 1, wherein The electric toothbrush sterilization device comprises a prompt circuit, an input end of the prompt circuit is electrically connected with the master control module; the prompt circuit is used for outputting a corresponding prompt signal according to a prompt control signal output by the master control module.

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