Multifunctional ultrasonic cleaner

Abstract

The multifunctional ultrasonic cleaner comprises a shell, a cover, a cleaning cylinder and a circuit module, the cover is provided with a sliding window, the size of an opening of the sliding window can be adjusted in a sliding mode, and the problem that a traditional cleaner cannot vertically clean long-strip-shaped objects such as toothbrushes is solved. The circuit module adopts a double-PCB strong and weak current separation design, and integrates a control key, a display screen, a UV lamp, an ultrasonic transducer and the like. And the magnet on the fixing frame is matched with the Hall sensor in the cover to form UV lamp opening physical interlocking. A charging port, a thermistor and an overload protection circuit are integrated on the first PCB, and intelligent temperature control and circuit protection are achieved. A detachable cleaning basket is arranged in the cleaning barrel, an ultrasonic transducer is mounted at the bottom, and an anti-slip damping gasket is arranged at the bottom of the shell. The multifunctional cleaning and disinfecting device has the functions of cleaning, UV disinfection and intelligent timing, is compact and portable in structure, is suitable for fine cleaning and disinfection of articles in multiple scenes such as families and medical treatment, solves the contradiction between the size and compatibility of traditional equipment, and improves the use safety and convenience.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic cleaning equipment technology, specifically to a multifunctional ultrasonic cleaner that integrates temperature control, UV disinfection and intelligent timing functions, and is especially suitable for the fine cleaning and disinfection of tableware, jewelry, electronic components, beauty tools and other items. Background Technology

[0002] In daily life, ultrasonic cleaners are widely used for cleaning items such as tableware, jewelry, dental braces, and electronic components. Traditional cleaners, designed to accommodate large or long items (such as toothbrushes, glasses, and razors), often require a larger overall size, which significantly reduces portability and occupies too much storage space. Small-volume cleaners, limited by their opening size, can only clean small, short items (such as dentures), failing to meet the cleaning needs of diverse items. For example, the denture cleaner disclosed in Chinese utility model patent CN2021228272695 has a closed cap design that limits the opening, only suitable for small items. Long, narrow items (such as toothbrush heads typically >15cm in length) cannot be placed vertically into the cleaning tube, and tilting them may result in incomplete cleaning or liquid spillage.

[0003] Most existing ultrasonic cleaners only offer a single cleaning function, lacking disinfection modules or intelligent controls, and their structural designs are not optimized for different shapes of items. For example, the fixed lid of existing cleaners cannot adjust the opening size, requiring users to fully open the lid to load and unload items. For long, narrow items, this is not only inconvenient but may also prevent the item from being placed due to the limited opening size, further restricting its use. Therefore, a multi-functional ultrasonic cleaner is proposed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional ultrasonic cleaner. This invention solves the above-mentioned problems by innovating the structure of a sliding window on the lid: the sliding window can slide along the lid guide rail to adjust the size of the opening, so that long and narrow items such as toothbrushes and glasses can be inserted vertically into the cleaning tube through the opening. This allows for the cleaning of long and narrow items in a small space without increasing the overall volume, while maintaining the portability and ease of storage of the device.

[0005] This invention provides a multifunctional ultrasonic cleaner, comprising a housing, a cover, a cleaning cylinder, and a circuit module. The cleaning cylinder is installed inside the housing, and the cover is rotatably connected to the housing. The cover has a sliding window that can be slidably mounted on the cover. The circuit module includes a PCB board, a control module, a battery, and an ultrasonic transducer. The PCB board is electrically connected to the control module, the battery, and the ultrasonic transducer. The adjustable opening of the sliding window allows long, narrow items (such as toothbrushes or eyeglass temples) to be vertically inserted into the cleaning cylinder without increasing the overall size, thus resolving the "size-compatibility" contradiction of traditional fixed openings.

[0006] Further describing the aforementioned solution, the PCB board includes a first PCB board and a second PCB board electrically connected. The housing includes an upper housing and a lower housing. The first PCB board and the battery are installed in the lower housing. The cleaning cylinder is installed in the upper housing via a sealing ring and a fixing bracket. The second PCB board is installed inside the cover and integrates control buttons and a display screen. The first PCB board carries high-voltage modules, such as the battery interface and the ultrasonic transducer drive circuit, and is located away from the user's operating area. The second PCB board integrates low-voltage modules, such as button input and display screen output, and is located close to the user interface for easy interaction. Separation of high-voltage and low-voltage circuits reduces signal interference. The integration of control buttons and the display screen into the cover allows users to operate without bending over, conforming to ergonomic design.

[0007] Further describing the aforementioned solution, a magnet is installed on the mounting bracket, and a Hall sensor corresponding to the magnet's position is installed on the cover. The Hall sensor is electrically connected to the second PCB board. A UV lamp is installed at the bottom of the second PCB board. The UV lamp is only activated when the Hall sensor detects the magnet. The Hall sensor detects the magnetic field strength. When the cover is fully closed, the distance between the sensor and the magnet (magnetic induction intensity ≥300mT) is <5mm, and a high-level signal is output, enabling the UV lamp circuit to conduct. Binding the UV lamp's activation permission to the cover's closed state forms a "physical interlock," preventing direct ultraviolet radiation from reaching the human body and completely eliminating the radiation risk caused by accidental activation of the UV lamp. This complies with the GB 7247.1-2012 safety standard and meets the Class 1M laser product protection requirements.

[0008] Further describing the aforementioned solution, the first PCB board is equipped with a charging port and integrates a charging circuit, a thermistor, and an overload protection circuit. The charging port (e.g., Type-C) connects to a charging management chip to achieve constant current and constant voltage charging, and the battery level is monitored in real time via ADC sampling. An NTC thermistor (accuracy ±1℃) is attached to the bottom of the cleaning drum to collect the water temperature in real time. When the temperature is ≥85℃, the MCU triggers a shutdown protection. A resettable fuse (overload current 3.5A±0.5A) is connected in series in the main circuit. It automatically disconnects when the current is abnormal (e.g., transducer jamming) and resumes conduction after the fault is cleared.

[0009] Further describing the aforementioned solution, a cleaning basket is installed inside the cleaning drum, and an ultrasonic transducer is installed at the bottom of the cleaning drum. The cleaning basket can be independently removed for easy removal of items.

[0010] Further description of the aforementioned solution: the control module is installed in the center of the cover. One side of the control module is a fixed transparent sheet, and the other side is an arc-shaped sliding window. The sliding window is also equipped with a handle to facilitate opening the sliding window and the pipe wall.

[0011] Further description of the aforementioned solution: the bottom of the housing is equipped with anti-slip and shock-absorbing washers to absorb ultrasonic vibration energy, reduce noise, and minimize slippage.

[0012] Further description of the aforementioned solution: the control buttons include a power button, a UV button, and a time button; the power button is used to control the ultrasonic wave to turn on / off; the UV button is used to control the UV lamp to turn on / off; and the time button is used to set the ultrasonic wave working time.

[0013] Compared to existing technologies, this invention achieves adjustable opening width through a sliding window structure on the lid, allowing for vertical cleaning of long, narrow items like toothbrushes without increasing the overall size, thus solving the space limitations of traditional lids with no opening. It integrates a UV disinfection module and uses a Hall sensor for safe start-up when the lid is closed, avoiding the risk of direct UV radiation. It also features intelligent temperature control, overload protection, and time memory functions, automatically shutting down when the water temperature exceeds 85℃ or the voltage drops below 10V. The dual PCB board layout with separate strong and weak current circuits reduces interference, and the transducer at the bottom of the cleaning drum, combined with a detachable cleaning basket, improves cleaning efficiency. Anti-slip pads at the bottom enhance stability. The overall design is compact and portable, with an ergonomic user interface, integrating cleaning, disinfection, and intelligent control functions, expanding its application to various scenarios such as home and medical settings. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0015] Figure 1 , 2 This is an overall schematic diagram of an embodiment of the present utility model;

[0016] Figure 3 , 4 An exploded view diagram provided for an embodiment of this utility model;

[0017] Figure 5 A schematic diagram of the lid is provided for an embodiment of this utility model;

[0018] Figure 6 An overall sectional view provided for an embodiment of this utility model.

[0019] The following are the labeling elements in the figure:

[0020] 1. Lower housing; 11. Gasket; 12. Battery; 13. First PCB board; 14. Charging port; 2. Upper housing; 21. Fixing bracket; 22. Magnet; 23. Sealing ring; 3. Cover; 31. Transparent sheet; 32. Sliding window; 33. Control module; 331. Second PCB board; 332. Control button; 333. UV lamp; 334. Sealing cover; 335. Hall sensor; 336. Display screen; 4. Cleaning cylinder; 41. Cleaning basket; 42. Ultrasonic transducer.

[0021] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0022] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Please see Figures 1-6 As shown, the multifunctional ultrasonic cleaner provided by this utility model has a compact circular structure, consisting of a shell, a cover 3, a cleaning cylinder 4, and a circuit module. The components work together precisely to achieve cleaning, disinfection, and intelligent control functions. The shell adopts a split design, including an upper shell 2 and a lower shell 1, which are fixed together by screws or clips, facilitating the installation and maintenance of internal components. An annular anti-slip and shock-absorbing washer 11 is attached to the bottom of the lower shell 1. This washer 11 can be made of 2mm thick silicone material with densely distributed 0.5mm diameter protrusions on its surface, effectively absorbing the vibration energy of the ultrasonic transducer 42 during operation, while providing a friction coefficient ≥0.6, ensuring stable placement of the equipment on a smooth surface.

[0025] The cleaning cylinder 4 is installed inside the upper housing 2 via a fixing bracket 21, such as Figure 6As shown, a magnet 22 is also installed on the mounting bracket 21, and the magnet 22 corresponds to the Hall sensor 335 inside the cover 3. The cleaning cylinder 4 is fixed to the mounting bracket 21 by screws through a sealing ring 23. The sealing ring 23 is made of fluororubber and has a temperature resistance range of -20℃ to 120℃ to prevent leakage of cleaning fluid. An ultrasonic transducer 42 is fixed to the center of the bottom of the cleaning cylinder 4 with epoxy resin. In this embodiment, the transducer has a size of Φ40mm×5mm, a working frequency of 42KHz±2KHz, and an output power of 50W. It can generate high-frequency vibration with an amplitude of 40μm, which, together with the detachable cleaning basket 41 inside the cleaning cylinder 4, achieves fine cleaning. The cleaning basket 41 is made of 304 stainless steel with a mesh size of 2mm and a handle at the bottom for easy removal of small items such as jewelry and beauty tools.

[0026] The lid 3 is connected to the upper housing 2 via a rotating shaft, allowing it to open and close around the shaft. The innovative design of the lid 3 lies in its top sliding window 32 structure: a long, arc-shaped guide rail is provided on the upper surface of the lid 3, and the sliding window 32 is an arc-shaped transparent acrylic plate. Users can easily push the sliding window 32 along the guide rail by holding the L-shaped handle on the left side of the sliding window 32, achieving stepless adjustment of the opening width. For example, when cleaning a toothbrush longer than 15cm, the user can open the sliding window 32 to 5cm, allowing the toothbrush to vertically pass through the opening and enter the cleaning cylinder 4, with the brush head submerged below the liquid surface and the handle protruding above the lid 3. This avoids the liquid spillage problem caused by the traditional fixed opening requiring full opening or tilting. On the other side of the lid 3 is a fixed transparent sheet 31, which, together with the sliding window 32, forms a top observation window, allowing the user to directly observe the cleaning process inside the cleaning cylinder 4.

[0027] The circuit module adopts a strong and weak current separation design, including a first PCB board and a second PCB board 331. The first PCB board is installed inside the lower housing 1 and integrates charging management, temperature monitoring, and overload protection functions: the Type-C charging port 14 connects to the charging chip to achieve constant current and constant voltage charging of the battery 12. During charging, the display screen 336 on the cover 3 dynamically displays the power level. An NTC thermistor is attached to the bottom outer side of the cleaning cylinder 4 through thermally conductive silicone to collect water temperature data in real time. When the temperature is ≥85℃, the main control chip triggers a shutdown protection, and the display screen 336 flashes "Hi" three times. A self-resetting fuse is connected in series in the main circuit.

[0028] The second PCB board 331 is installed in the center inside the cover 3. It adopts an FR-4 circuit board and integrates control buttons 332, display screen 336 and UV disinfection module. A sealing cover plate 334 is also provided below the second PCB board 331 to seal the circuit. The control button 332 is a three-button silicone button, including a power button, a UV button, and a time button: Press and hold the power button for 1.5 seconds to turn the device on / off. When the device is on, the display screen 336 shows "ON" for 0.5 seconds. A short press toggles the ultrasonic start / stop. The initial default working time is 180 seconds, and subsequent starts retrieve the previously set time from the memory. A short press of the UV button turns on the UV lamp 333, with a default working time of 5 minutes. This function can only be triggered when the cover 3 is fully closed and the Hall sensor 335 detects a magnetic field strength of ≥300mT in the magnet 22, to prevent direct ultraviolet radiation to the human body when the cover is open, in accordance with relevant safety standards. A short press of the time button cycles through the ultrasonic working time, such as 90S→180S→360S→480S. After selecting, lifting the finger for 2 seconds automatically starts the countdown, and the system automatically stops after the countdown ends.

[0029] The UV disinfection module consists of six UV-C LED beads with a wavelength of 254nm and a power of 5W, arranged in a ring array at the bottom of the second PCB board 331, with an irradiation angle of 120°. A Hall sensor 335 is installed inside the cover 3. When the cover 3 is fully closed, the distance between the sensor and the magnet 22 of the mounting bracket 21 is less than 5mm. Upon detecting a magnetic field signal, the sensor outputs a high level to the second PCB board 331, enabling the UV lamp 333 circuit to conduct. If the cover is opened or not fully closed during operation, the magnetic field strength drops sharply to less than 100mT, and the UV lamp 333 immediately extinguishes, forming a "physical interlock" safety mechanism.

[0030] The display screen 336 uses a 0.96-inch OLED screen to display the working status, remaining time, battery level, and abnormal prompts in real time: During normal operation, it displays "ON" and an ultrasonic countdown timer; when the UV lamp 333 is on, it displays a "UV" icon. When the battery voltage is below 10V, the display screen 336 flashes "Lo" three times and refuses to activate any functions, prompting the user to charge. In case of overload, it flashes "too" three times, indicating a main circuit malfunction. During charging, the display screen 336 dynamically updates the battery level, and the charging interface is isolated from the main circuit to ensure that the ultrasonic lamp or UV lamp 333 cannot be activated during charging, avoiding the risk of electric shock.

[0031] In actual operation, users can select the cleaning mode according to different needs: When cleaning tableware, open the sliding window 32 and vertically place long items such as chopsticks and toothbrushes into the cleaning basket 41, pour in warm water at 30-50℃, close the sliding window 32, and then press and hold the power button to turn on the machine. Select the 360S working mode using the time button, and press the power button to start the ultrasonic cleaning. If simultaneous disinfection is required, press the UV button with the lid closed; the UV lamp 333 and ultrasonic cleaning will work simultaneously. After cleaning, remove the cleaning basket 41 and let it drain. For small pieces of jewelry, they can be placed directly into the cleaning basket 41 without opening the sliding window 32. After closing the lid 3, start the ultrasonic and UV disinfection functions to achieve a dual effect of cleaning and sterilization.

[0032] This invention overcomes the limitations of traditional ultrasonic cleaners in terms of compatibility with long items and disinfection safety through innovative designs such as the sliding window 32 opening adjustment, Hall sensor 335 safety interlock, and strong / weak current separation on dual PCB boards. Its compact and portable structure and ergonomic user interface allow users to complete all operations via buttons on the lid 3 without bending over. Furthermore, intelligent temperature control, overload protection, and time memory functions further enhance the reliability and ease of use of the device, making it widely applicable in various scenarios such as homes, medical facilities, and offices, meeting the diverse needs of users for refined cleaning and disinfection.

[0033] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the foregoing claims.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0035] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A multifunctional ultrasonic cleaner, characterized in that: The device includes a housing, a cover (3), a cleaning cylinder (4), and a circuit module. The cleaning cylinder (4) is installed inside the housing. The cover (3) is rotatably connected to the housing, and the cover (3) is provided with a sliding window (32). The sliding window (32) is slidably installed on the cover (3). The circuit module includes a PCB board, a control module (33), a battery (12), and an ultrasonic transducer (42). The PCB board is electrically connected to the control module (33), the battery (12), and the ultrasonic transducer (42).

2. The multifunctional ultrasonic cleaner according to claim 1, characterized in that: The PCB board includes a first PCB board (13) and a second PCB board (331) that are electrically connected. The housing includes an upper housing (2) and a lower housing (1). The first PCB board (13) and the battery (12) are installed in the lower housing (1). The cleaning cylinder (4) is installed in the upper housing (2) through a sealing ring (23) and a fixing bracket (21). The second PCB board (331) is installed in the cover (3). The second PCB board (331) integrates control buttons (332) and a display screen (336).

3. A multifunctional ultrasonic cleaner according to claim 2, characterized in that: A magnet (22) is installed on the fixing frame (21), and a Hall sensor (335) corresponding to the position of the magnet (22) is installed on the cover (3). The Hall sensor (335) is electrically connected to the second PCB board (331). A UV lamp (333) is installed at the bottom of the second PCB board (331). The UV lamp (333) is turned on only when the Hall sensor (335) senses the magnet (22).

4. A multifunctional ultrasonic cleaner according to claim 2, characterized in that: The first PCB board (13) is equipped with a charging port (14) and integrates a charging circuit, a thermistor, and an overload protection circuit.

5. A multifunctional ultrasonic cleaner according to claim 1, characterized in that: The cleaning drum (4) is also equipped with a cleaning basket (41), and the ultrasonic transducer (42) is installed at the bottom of the cleaning drum (4).

6. A multifunctional ultrasonic cleaner according to claim 1, characterized in that: The control module (33) is installed in the center of the cover (3). One side of the control module (33) is a fixed transparent sheet (31), and the other side is an arc-shaped sliding window (32). The sliding window (32) is also provided with a handle.

7. A multifunctional ultrasonic cleaner according to claim 1, characterized in that: The bottom of the housing is provided with anti-slip and shock-absorbing gaskets (11).

8. A multifunctional ultrasonic cleaner according to claim 2, characterized in that: The control buttons (332) include a power button, a UV button, and a time button; the power button is used to control the ultrasonic wave to turn on / off; the UV button is used to control the UV lamp to turn on / off; and the time button is used to set the ultrasonic wave working time.

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