A cleaner

Abstract

This invention provides a cleaner, comprising a cover, an ultrasonic vibration component, and a hydroxyl radical generator. The cover is a rigid, one-piece structure with an opening, and is a continuous, intact surface except for the opening. The outer surface of the cover is entirely exposed and serves as the direct exposed surface of the cleaner. The ultrasonic vibration component is fixed to the inner surface of the cover, and the ultrasonic waves it generates are radiated outward through the cover. The hydroxyl radical generator is fixed at the opening of the cover. The ultrasonic vibration component drives the cover to vibrate and radiate ultrasonic waves outward, making the one-piece structure of the cover the source of the outward ultrasonic radiation, which improves the transmission efficiency of ultrasonic waves from the ultrasonic vibration component to the cover. Sufficient ultrasonic energy helps to decompose and peel off harmful substances attached to fruits and vegetables, and the hydroxyl radicals further neutralize them, thereby improving the cleaning ability and enhancing the removal of pesticide residues.

Description

Technical Field

[0001] This application relates to the field of cleaning and purification, and more particularly to a cleaner. Background Technology

[0002] Food safety is a major concern, and washing food thoroughly can help prevent foodborne illnesses. Meat, seafood, grains, fruits, and vegetables often need to be washed before consumption, especially fruits and vegetables, which are usually not cooked before eating, making the washing process particularly important. Currently, fruits and vegetables face food safety issues related to excessive pesticide residues. Therefore, cleaning and purification machines that remove pesticide residues and other contaminants from fruits and vegetables are becoming increasingly common in people's daily lives.

[0003] Commonly used technologies for cleaning and purifying fruits and vegetables to remove pesticide residues include ozone purification, ultrasonic cleaning, and water hydroxyl purification. However, ozone's strong oxidizing properties pose a risk of damaging the respiratory tract mucosa and corroding materials, leading manufacturers to gradually reduce its use in household fruit and vegetable cleaning machines. Ultrasonic cleaning is effective at removing large particles of dirt from the surface of fruits and vegetables but not so good at removing pesticide residues. Water hydroxyl purification, on the other hand, has the opposite effect and also has a bactericidal effect. Therefore, fruit and vegetable cleaning machines that combine these two technologies have emerged on the market.

[0004] These fruit and vegetable cleaning machines come in two main types. The first is a volumetric cleaning machine with a fruit and vegetable container. These machines are relatively large, expensive, not easily portable, and have limited applications. The second type is a small fruit and vegetable cleaner without a container. These are smaller, cheaper, more portable, and have a wider range of applications. However, the cleaning and purification capabilities of these small machines in removing pesticide residues and dirt are also limited by their size. The number, type, size, and power of functional components such as ultrasonic vibration components and water hydroxyl generators that can be installed are also limited.

[0005] For example, a fruit and vegetable cleaner disclosed in Chinese Utility Model Patent (Publication No.: CN205585897U) includes an ultrasonic transducer and an ionization generator. The ultrasonic transducer and ionization generator are housed within a housing. An insulated internal support divides the housing into an upper housing and a lower housing. The ultrasonic transducer is fixed above the internal support within the upper housing. The ultrasonic transducer transmits ultrasonic energy through a stainless steel plate, which is attached to the upper housing. During vibration, the stainless steel plate is easily obstructed by the upper housing, leading to ultrasonic energy loss. The ultrasonic transducer transmits ultrasonic waves outward through the stainless steel plate. However, the effective working surface of the stainless steel plate is small, and it is not an integral structure with the upper housing. The vibration direction is only along the vertical axis of the fruit and vegetable cleaner, resulting in the main ultrasonic radiation direction being directly above the cleaner. Fruits and vegetables around the cleaner receive insufficient ultrasonic energy. During normal use, the fruit and vegetable washer is placed in a container (sink, basin, or bucket, etc.), and most fruits and vegetables tend to surround it. The ultrasonic energy around the fruit and vegetable washer is insufficient, which can easily lead to ineffective removal of pesticide residues and poor cleaning ability of fruits and vegetables. Utility Model Content

[0006] This application provides a cleaner, placed in a liquid, comprising: The cover is a rigid, integral structure with an opening. Except for the opening, the cover is a continuous and complete surface. The outer surface of the cover is completely exposed as the direct exposed surface of the cleaner. An ultrasonic vibration component is fixed on the inner surface of the cover. The ultrasonic waves it generates are radiated outward through the outer surface of the cover and generate micro-jet impacts in the liquid. A hydroxyl radical generating component is fixed at the opening of the cover and is used to electrolyze the liquid it comes into contact with, generate hydroxyl radicals and produce microbubbles, which are diffused by microjet impact as they rise from the bottom.

[0007] During normal use, the opening of the housing of the cleaner is generally facing away from the liquid surface and towards the bottom of the liquid. The ultrasonic vibration component drives the housing to vibrate and radiate ultrasonic waves outwards. The housing, with its integrated structure, acts as the source of ultrasonic radiation. Compared to the flat, plate-like structures used in existing technologies, the housing has a larger outer surface area, increasing the area in direct contact with the liquid and improving the transmission efficiency of ultrasonic waves from the ultrasonic vibration component to the housing. The entire outer surface of the housing is exposed and can directly contact the liquid, with no other components between the outer surface and the liquid. This allows for unobstructed transmission of ultrasonic waves, greatly reducing energy loss and generating more and stronger micro-jets in the liquid, thereby increasing the intensity of ultrasonic energy received by the objects to be cleaned. Therefore, the ultrasonic vibration component does not require excessive ultrasonic power to meet the cleaning needs of the objects, thus fulfilling the requirement for miniaturization of the cleaner. Sufficient ultrasonic energy helps decompose and peel off harmful substances adhering to fruits and vegetables. Combined with the hydroxyl radical generator, which produces microbubbles, these microbubbles rise from the bottom and are impacted by stronger microjet streams, thus diffusing more thoroughly into the cleansing material. Ultrasonic waves can participate more fully in the entire process of hydroxyl radical generation, from generation to sterilization and pesticide residue degradation. The alternating positive and negative sound pressure generated during ultrasonic propagation impacts the cleansing material, and ultrasonic cavitation creates high-speed microjet streams at the solid-liquid interface, increasing agitation and diffusion, and enhancing the contact probability between hydroxyl radicals and the cleansing material. The oxidizing hydroxyl radicals can destroy harmful substances such as bacterial cell walls and double bonds of pesticide residues in the cleansing material, further neutralizing it and improving cleaning power and pesticide residue removal.

[0008] Furthermore, it also includes a liquid agitation component disposed outside the hydroxyl radical generating component, the liquid agitation component diffuses the hydroxyl radicals and microbubbles at the bottom of the liquid.

[0009] The hydroxyl radical generating component electrolyzes the liquid it comes into contact with, generating hydroxyl radicals and microbubbles. As these microbubbles rise gradually from the bottom of the cleaner to the surface, they diffuse around the cleaner under the agitation of the liquid agitation component, rather than being limited to the bottom and top of the cleaner. This agitation of the liquid facilitates the diffusion of hydroxyl radicals, allowing them to come into more thorough contact with the items to be cleaned, thereby improving the ability to remove pesticide residues and the sterilization effect. Furthermore, some items to be cleaned that are easily moved by the agitated liquid are subjected to more thorough ultrasonic waves, resulting in a more complete decomposition and removal of contaminants from their surfaces.

[0010] Furthermore, the cover includes a top surface and side surfaces, and the ultrasonic waves generated by the ultrasonic vibration component radiate outward through the top surface and side surfaces of the cover.

[0011] In existing cleaning devices with only one working surface radiating ultrasonic waves, the ultrasonic radiation is stronger in the direction facing that working surface, while the ultrasonic waves are weaker in other directions. The top and sides of the enclosure in this application can radiate ultrasonic waves outwards, ensuring strong ultrasonic radiation at the top and sides of the cleaner. This allows the items to be cleaned, distributed in all directions of the enclosure, to be more fully affected by the ultrasonic waves to decompose surface contaminants.

[0012] Furthermore, the ultrasonic vibration component is in close contact with the top surface of the cover and the vibration direction is parallel to the normal direction of the surface, and / or the ultrasonic vibration component is in close contact with at least a portion of the side surface of the cover and the vibration direction is parallel to the normal direction of the closely contacted portion.

[0013] The items to be cleaned may be distributed on the side of the cleaner and towards the liquid surface. The ultrasonic vibration component vibrates towards the top and sides of the cover, which can more effectively and comprehensively cover the items to be cleaned in all directions.

[0014] Furthermore, the ultrasonic vibration component is connected to the inner surface of the top surface of the cover, and the ultrasonic waves generated by the ultrasonic vibration component are transmitted to the top surface of the cover, and the top surface of the cover drives the side surface of the cover to radiate ultrasonic waves outward together.

[0015] The ultrasonic vibration component is placed on the inner surface of the top surface of the enclosure. The structure is simple and easy to install. The integrated structure of the enclosure can transmit the vibration to the side of the enclosure, so that the side of the enclosure can also radiate ultrasonic waves outward.

[0016] Furthermore, the top surface of the cover is a circular plane, an elliptical plane, or a regular polygonal plane, and the ultrasonic vibration component is fitted and installed at the geometric center of the inner surface of the top surface of the cover. This regular structure is beneficial to the manufacture of the cover. The ultrasonic vibration component is fitted at the geometric center of the inner surface of the top surface of the cover, which makes the top surface of the cover more uniformly stressed, which is conducive to the transmission of vibration and reduces the energy loss of ultrasonic waves.

[0017] Furthermore, the height of the cover is less than the shortest radius of the top surface of the cover; this makes the cleaner flatter, smaller, simpler, more portable and easier to use, and also more suitable for being fully submerged in liquid, away from the liquid surface, which can increase the diffusion effect.

[0018] Furthermore, the top surface of the cover is a multifaceted structure with outward protrusion formed by splicing multiple planes; the top surface of the cover is an outwardly protruding curved surface; when the cleaner is in normal use, the opening of the cover is vertically downward and fully submerged in the liquid, and the top surface of the cover faces the horizontal plane of the liquid. These two top surface structures of the cover make its top surface not parallel to the liquid surface. In this way, the vibration direction of the ultrasonic vibration component installed on the top surface of the cover includes the side orientation of the cleaner and the orientation towards the liquid surface, which can more effectively and comprehensively cover the objects to be cleaned from all directions.

[0019] Furthermore, the angle formed at the transition point between the inner surface of the side of the cover and the inner surface of the top of the cover is an obtuse angle.

[0020] Furthermore, when the cleaner is in normal use, the opening of the cover is vertically downward and submerged to the bottom of the liquid. The side of the cover is not perpendicular to the liquid surface. In this way, the vibration direction of the ultrasonic vibration component installed on the side of the cover includes both the side of the cleaner and the direction towards the liquid surface, which can more effectively and comprehensively cover the objects to be cleaned from all directions.

[0021] Furthermore, the ultrasonic vibration component is connected to the inner surface of the side of the cover. The ultrasonic waves generated by the ultrasonic vibration component are transmitted to the side of the cover, and the side of the cover causes the top surface of the cover to radiate ultrasonic waves outward together. The ultrasonic vibration component vibrates along the radial direction of the cover, causing the ultrasonic waves to radiate outward to the side of the cover, thereby increasing the intensity of ultrasonic energy that can be received at the side of the cover.

[0022] Furthermore, the ultrasonic vibration assembly has multiple transducers, which are attached to the inner surface of the side of the enclosure and arranged in a ring at equal intervals along the plane of the side normal of the enclosure. While the vibration direction of a single transducer is relatively unidirectional, arranging multiple transducers in an orderly manner on the side of the enclosure allows for a more uniform and comprehensive transmission of ultrasonic waves in all radial directions.

[0023] Furthermore, the side of the enclosure is cylindrical, and the ultrasonic vibration assembly includes a ring transducer and an amplitude transformer. The ring transducer is rigidly connected to the inner surface of the enclosure via the amplitude transformer. The ring transducer vibrates along the radial direction of the enclosure, and the ultrasonic waves are transmitted to the side of the enclosure via the amplitude transformer, thereby radiating ultrasonic waves to the surrounding area of ​​the enclosure, resulting in a wide and more uniform coverage.

[0024] Furthermore, the housing is a one-piece metal structure; only the ultrasonic vibration component in the cleaner is rigidly connected to the housing. Other components are non-rigidly connected to the housing, which reduces the obstruction during housing vibration and thus reduces the energy loss of ultrasonic waves radiated outward from the housing.

[0025] Furthermore, a water-proof plate is provided at the opening of the cover, and the opening of the cover is sealed by the water-proof plate, so that the inside of the cover forms a first cavity; the first cavity is a sealed cavity that prevents liquid from entering, the ultrasonic vibration component is installed in the sealed cavity, and the hydroxyl radical generator is installed outside the sealed cavity; one side of the water-proof plate is connected to the cover, and the other side is connected to the bottom shell, the bottom shell has an opening facing the water-proof plate, the bottom shell is fixedly connected to the water-proof plate, and forms a second cavity, the second cavity has an opening for liquid to enter and exit, and the part of the hydroxyl radical generator that is used to contact the liquid and perform the electrolysis function is located in the second cavity.

[0026] Since the cover of the enclosure needs to radiate ultrasonic waves outwards, in order to reduce the suppression of the enclosure's vibration, it is necessary to minimize any attachments on the enclosure, especially ensuring that the cover surface is as free as possible from any attachments that could suppress the radiated ultrasonic waves. Therefore, structurally connecting the water-blocking plate at the opening of the enclosure, compared to the existing method of directly connecting the structure on the transducer plane, will minimize the suppression in the direction of ultrasonic vibration. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application; Figure 3 This is an exploded view of an embodiment of this application; Figure 4 This is a schematic diagram of the installation structure of the cover and the ultrasonic vibration component in an embodiment of this application. Figure 1 ; Figure 5 This is a schematic diagram of the installation structure of the cover and the ultrasonic vibration component in an embodiment of this application. Figure 2 ; Figure 6 This is a schematic diagram of the structure of the cover in the embodiments of this application. Figure 1 ; Figure 7 This is a schematic diagram of the structure of the cover in the embodiments of this application. Figure 2 ; The reference numerals in the attached figures refer to the following: 1-cover, 2-ultrasonic vibration component, 3-hydroxyl radical generator component, 4-liquid agitation component, 5-bottom shell, 6-circuit board, 7-waterproof plate, 8-sealing ring, 11-top surface, 12-side surface, 21-piezoelectric ceramic, 21'-ring transducer, 22-amplifier. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In one embodiment, such as Figures 1 to 3As shown, this embodiment provides a cleaner, including a housing 1, an ultrasonic vibration component 2, a hydroxyl radical generator 3, and a liquid agitation component 4. The housing 1 is a rigid, integral structure with an opening. Except for the opening, the housing 1 is a continuous, intact surface, with its outer surface entirely exposed, becoming the direct exposed surface of the cleaner. The ultrasonic vibration component 2 is fixed to the inner surface of the housing 1, and the ultrasonic waves it generates are radiated outwards through the housing 1. The hydroxyl radical generator 3, fixed at the opening of the housing 1, is used to generate hydroxyl radicals and microbubbles. In this embodiment, the electrode device of the hydroxyl radical generator 3 has an electrolytic function, and hydroxyl radicals are generated through electrolysis. During normal use, the opening of the housing 1 is generally facing away from the liquid surface and towards the bottom of the liquid. The ultrasonic vibration component 2 drives the housing 1 to vibrate and radiate ultrasonic waves outwards. The housing 1, with its integrated structure, serves as the entire source of ultrasonic radiation. Compared to the flat plate structure used in existing technologies for transmitting ultrasonic waves, the housing 1 has a larger outer surface area, increasing the area in direct contact with the liquid and improving the transmission efficiency of ultrasonic waves from the ultrasonic vibration component 2 to the housing 1. The outer surface of the housing 1 is entirely exposed and can directly contact the liquid, with no other components between the outer surface and the liquid. This allows for unobstructed transmission of ultrasonic waves, significantly reducing energy loss and generating more and stronger micro-jets in the liquid, thereby increasing the intensity of ultrasonic energy received by the objects to be cleaned. The structural connection at the opening of the housing 1 provides better suppression in the ultrasonic vibration direction compared to existing direct structural connections on the transducer plane. Therefore, the ultrasonic vibration component 2 does not require excessive ultrasonic power to meet the cleaning needs of the objects, thus fulfilling the requirement for miniaturization of the cleaner. Sufficient ultrasonic energy helps decompose and peel off harmful substances adhering to fruits and vegetables. Combined with the hydroxyl radical generator component 3, which produces hydroxyl radicals and microbubbles, these microbubbles rise from the bottom and are impacted by stronger microjet streams, thus diffusing more thoroughly into the items to be cleaned. Ultrasonic waves can participate more fully in the entire process of hydroxyl radical generation, from generation to sterilization and pesticide residue degradation. The wave of alternating positive and negative sound pressure generated during propagation impacts the items to be cleaned. Ultrasonic cavitation creates high-speed microjet streams at the solid-liquid interface, increasing agitation and diffusion, and enhancing the contact probability between hydroxyl radicals and the items to be cleaned. The oxidizing hydroxyl radicals can destroy the bacterial cell walls and double bonds of pesticide residues in the items, further neutralizing them and improving cleaning power and pesticide residue removal.

[0031] The liquid agitation component 4 is located at the opening of the housing 1. When the cleaner is in operation, it is placed in a liquid (in primary applications such as household cleaning and fresh food market washing, the liquid is water), and the liquid agitation component 4 is used to agitate the liquid. The liquid agitation component 4 can be a stirrer or a water pump, such as a stirrer with an impeller or blades, or a circulating water pump. The hydroxyl radical generating component electrolyzes the liquid it contacts to generate hydroxyl radicals and microbubbles. As these radicals gradually rise from the bottom of the cleaner to the liquid surface, they diffuse around the cleaner under the agitation of the liquid agitation component, rather than being limited to the bottom and top of the cleaner. This agitation facilitates the diffusion of hydroxyl radicals, allowing for more thorough contact with the items to be cleaned, thereby improving pesticide residue removal and sterilization effects. Furthermore, items that are easily moved by the agitated liquid are more fully affected by ultrasonic waves, resulting in more thorough decomposition and removal of surface contaminants.

[0032] A water-proof plate 7 is provided at the opening of the cover 1, and the opening of the cover 1 is sealed by the water-proof plate 7, forming a first cavity inside the cover 1. The first cavity is a sealed cavity that prevents liquid from entering, preventing the functional devices (mainly electronic devices) installed inside the sealed cavity from being contaminated by liquid and causing failure or even damage, thus achieving a waterproof effect. The ultrasonic vibration component 2 is installed inside the sealed cavity, the hydroxyl radical generator component 3 is installed outside the sealed cavity, and the liquid agitation component 4 is installed outside the sealed cavity. A sealing ring 8 is provided at the connection between the opening edge of the cover 1 and the water-proof plate 7, or a sealant is applied to the connection to achieve a sealing effect. A circuit board 6 is also installed inside the sealed cavity, and the ultrasonic vibration component 2, the hydroxyl radical generator component 3, and the liquid agitation component 4 are electrically connected to the circuit board 6. Preferably, the above-mentioned electronic devices are powered by batteries, and the battery charging methods include electrical socket charging, USB charging, solar charging, and wireless charging.

[0033] The enclosure 1 is a one-piece metal structure, preferably made of stainless steel, as this rigid structure facilitates the transmission of ultrasonic waves. The enclosure 1 is rigidly connected only to the ultrasonic vibration component 2; other components are connected to the enclosure 1 using non-rigid connections, such as the water-resistant plate 7 being connected to the enclosure 1 via a sealed cavity or sealant. This reduces the obstruction during the vibration of the enclosure 1, thereby reducing the energy loss of the ultrasonic waves radiated outward from the enclosure 1.

[0034] One side of the water-proof plate 7 is connected to the cover 1, and the other side is connected to the bottom shell 5. The bottom shell 5 has an opening facing the water-proof plate 7. The bottom shell 5 is fixedly connected to the water-proof plate 7 and forms a second cavity. The second cavity has an opening for liquid to enter and exit. The part of the hydroxyl radical generating component 3 that is in contact with water and performs electrolysis (electrode device immersed in water) and the liquid stirring component 4 are located in the second cavity.

[0035] The enclosure 1 includes a top surface 11 and side surfaces 12. The generated ultrasonic waves are radiated outward through the top surface 11 and side surfaces 12 of the enclosure 1. Compared to a cleaner with only one working surface radiating ultrasonic waves, the top surface 11 and side surfaces 12 of the enclosure 1 can radiate ultrasonic waves outward, which improves the ultrasonic wave transmission efficiency with the enclosure 1 as the vibration source. It also allows the items to be cleaned, distributed in all directions of the enclosure 1, to be more fully affected by the ultrasonic waves to decompose surface contaminants.

[0036] Further integration Figure 4 As shown, the parts of the inner side of the housing 1 that connect to the ultrasonic vibration assembly 2 include the top surface 11 and the side surface 12. The transducers of the ultrasonic vibration assembly 2 that are in contact with each surface are piezoelectric ceramics 21, and the connection details of each surface are as follows: Top surface 11: The piezoelectric ceramic 21 is in close contact with the top surface 11 of the cover 1 and the vibration direction is parallel to the normal direction of the surface; Side 12: The piezoelectric ceramic 21 is in close contact with at least a portion of the side 12 of the cover 1, and the vibration direction is parallel to the normal direction of that portion.

[0037] The items to be cleaned may be located on the side of the cleaner and facing the liquid surface. The vibration direction of the piezoelectric ceramic 21 is directed towards the top surface 11 and the side surface 12 of the cover 1, which can more effectively and comprehensively cover the items to be cleaned in all directions.

[0038] The ultrasonic vibration component 2 is connected to the inner surface of the top surface 11 of the housing 1. The ultrasonic waves generated by the ultrasonic vibration component 2 are transmitted to the top surface 11 of the housing 1, and the top surface 11 of the housing 1 drives the side surface 12 of the housing 1 to radiate ultrasonic waves outward together. By setting the ultrasonic vibration component 2 on the inner surface of the top surface 11 of the housing 1, the structure is simple and the installation is convenient. The integrated structure of the housing 1 can transmit the vibration to the side surface 12 of the housing 1, so that the side surface 12 of the housing 1 can also radiate ultrasonic waves outward.

[0039] When the cleaner is in normal use, the opening of the cover 1 is vertically downward and submerged to the bottom of the liquid. The side 12 of the cover 1 is not perpendicular to the liquid surface. In this way, the vibration direction of the ultrasonic vibration component 2 installed on the side 12 of the cover 1 includes the side of the cleaner and the direction towards the liquid surface, which can more effectively and comprehensively cover the objects to be cleaned in all directions.

[0040] In one embodiment, such as Figure 5As shown, in this embodiment, the side of the enclosure 1 is cylindrical. The ultrasonic vibration assembly includes a ring transducer 21' and an amplitude transformer 22. The ring transducer 21' is rigidly connected to the inner surface of the enclosure 1 through the amplitude transformer 22. The ring transducer 21' vibrates along the radial direction of the enclosure 1, and transmits the ultrasonic waves to the side of the enclosure 1 through the amplitude transformer 22, thereby radiating ultrasonic waves to the surrounding area of ​​the enclosure 1, resulting in a wide and more uniform coverage. The amplitude transformer 22 can be an amplitude transformer rod or a flange.

[0041] In one embodiment, such as Figure 6 As shown, the angle formed at the transition point between the inner surface of the side of the cover 1 and the inner surface of the top of the cover 1 is an obtuse angle.

[0042] In one embodiment, such as Figure 7 As shown, the cover 1 is a spherical shell structure with a flat cut. The flat cut is the opening of the cover 1. The radius of the spherical shell structure passes through the center of the flat cut and is perpendicular to the plane where the flat cut is located. The distance from the center of the flat cut to the highest point of the top of the cover 1 is not greater than the radius of the spherical shell structure.

[0043] In one embodiment, the top surface of the cover is a circular plane, an elliptical plane, or a regular polygonal plane, and the ultrasonic vibration component is fitted and installed at the geometric center of the inner surface of the top surface of the cover. This kind of regular structure is beneficial to the manufacture of the cover. The ultrasonic vibration component is fitted at the geometric center of the inner surface of the top surface of the cover, so that the top surface of the cover is subjected to more uniform force, which is conducive to the transmission of vibration and reduces the energy loss of ultrasonic waves.

[0044] In one embodiment, the ultrasonic vibration assembly has multiple transducers attached to the inner surface of the side of the enclosure. The transducers are arranged in a ring at equal intervals along the plane containing the normal to the side of the enclosure. While the vibration direction of a single transducer is relatively unidirectional, arranging multiple transducers in an orderly manner on the side of the enclosure allows for a more uniform and comprehensive transmission of ultrasonic waves in all radial directions.

[0045] In one embodiment, the top surface of the cover is a multifaceted structure with outward protrusion formed by splicing multiple planes; the top surface of the cover is an outward protruding curved surface; when the cleaner is in normal use, the opening of the cover is vertically downward and fully submerged in the liquid, and the top surface of the cover faces the horizontal plane of the liquid. These two top surface structures of the cover make its top surface not parallel to the liquid surface. In this way, the vibration direction of the ultrasonic vibration component installed on the top surface of the cover includes the side orientation of the cleaner and the orientation towards the liquid surface, which can more effectively and comprehensively cover the objects to be cleaned in all directions.

[0046] In one embodiment, the height of the cover is less than the shortest radius of the top surface of the cover; this makes the cleaner flatter, smaller and simpler, more portable and easier to use, and also more suitable for being fully submerged in the liquid, away from the liquid surface, thus increasing the diffusion effect.

[0047] In one embodiment, the cover is an ellipsoidal structure with a flat cut, the minor axis of which passes through the center of the flat cut and is perpendicular to the plane in which the flat cut is located.

[0048] In one embodiment, the structure of the cover is a cylinder, a cube, or a cuboid.

[0049] In one embodiment, the cover is shaped like a frustum, and the opening of the cover is also circular with a radius greater than the radius of the top surface of the cover.

[0050] In one embodiment, the cover is generally conical or frustum-shaped, and the opening of the cover is located at the bottom of the cone or frustum.

[0051] In one embodiment, the cover is in the shape of a straight prism, including triangular prisms, quadrangular prisms, and other polyprisms.

[0052] In one embodiment, the cover is in the shape of a regular frustum, including a regular triangular frustum, a regular square frustum, etc., and the area of ​​the face where the opening of the cover is located is greater than the area of ​​the top surface of the cover.

[0053] In one embodiment, the cleaner also includes functional modules such as a Bluetooth module and a wireless charging module. To further achieve the goal of installing more functional modules (such as Bluetooth modules and wireless charging modules) in a small, portable cleaner with limited space, the space occupied by each basic functional component (ultrasonic vibration component 2, hydroxyl radical generator 3, etc.) needs to be minimized. Especially important is improving the effective use of each basic functional component while ensuring that its cleaning function is not affected. The power of the ultrasonic vibration component 2 cannot be too low, otherwise the purification effect will be poor. Therefore, the optimization range of the volume of the ultrasonic vibration component 2 is limited, making it even more necessary to fully utilize the effect of the limited volume of the ultrasonic vibration component 2.

[0054] This invention can also be used for washing other items suitable for soaking besides fruits and vegetables, such as seafood, meat, grains, eyeglasses, jewelry, and personal care products such as razors. It can also be used for pre-cleaning some tableware and kitchen utensils such as bowls and plates.

[0055] In summary, the above description is only a preferred embodiment of this application. All equivalent changes and modifications made within the scope of this application should be covered by this application.

Claims

1. A cleaner, placed in a liquid, characterized in that, include: The cover is a rigid, integral structure with an opening. Except for the opening, the cover is a continuous and complete surface. The outer surface of the cover is completely exposed as the direct exposed surface of the cleaner. An ultrasonic vibration component is fixed on the inner surface of the cover. The ultrasonic waves it generates are radiated outward through the outer surface of the cover and generate micro-jet impacts in the liquid. A hydroxyl radical generating component is fixed at the opening of the cover and is used to electrolyze the liquid it comes into contact with, generate hydroxyl radicals and produce microbubbles, which are diffused by microjet impact as they rise from the bottom.

2. The cleaner according to claim 1, characterized in that, It also includes a liquid agitation component located outside the hydroxyl radical generating component, which diffuses the hydroxyl radicals and microbubbles at the bottom of the liquid.

3. The cleaner according to claim 1 or 2, characterized in that, The enclosure includes a top surface and side surfaces, and the ultrasonic waves generated by the ultrasonic vibration component radiate outward through the top surface and side surfaces of the enclosure.

4. The cleaner according to claim 3, characterized in that, The ultrasonic vibration component is in close contact with the top surface of the cover and the vibration direction is parallel to the normal direction of the surface, and / or the ultrasonic vibration component is in close contact with at least a portion of the side surface of the cover and the vibration direction is parallel to the normal direction of the closely contacted portion.

5. The cleaner according to claim 4, characterized in that, The ultrasonic vibration component is connected to the inner surface of the top surface of the cover. The ultrasonic waves generated by the ultrasonic vibration component are transmitted to the top surface of the cover, and the top surface of the cover causes the side surface of the cover to radiate ultrasonic waves outward together.

6. The cleaner according to claim 5, characterized in that, The top surface of the cover has any of the following structures: The top surface of the cover is a circular plane, an elliptical plane, or a regular polygonal plane. The ultrasonic vibration component is fitted and installed at the geometric center of the inner surface of the top surface of the cover. The height of the cover is less than the shortest radius of the top surface of the cover. The top surface of the cover is a multifaceted structure that protrudes outward, composed of multiple planes. The top surface of the cover is an outwardly convex curved surface; The angle formed at the transition point between the inner surface of the top surface of the cover and the inner surface of the side surface of the cover is an obtuse angle.

7. The cleaner according to claim 4, characterized in that, The ultrasonic vibration component is connected to the inner surface of the side of the cover. The ultrasonic waves generated by the ultrasonic vibration component are transmitted to the side of the cover, and the side of the cover drives the top surface of the cover to radiate ultrasonic waves outward together.

8. The cleaner according to claim 7, characterized in that, The ultrasonic vibration assembly has multiple transducers, which are attached to the inner surface of the side of the cover and are arranged in a ring at equal intervals along the plane of the side normal of the cover.

9. The cleaner according to claim 7, characterized in that, The side of the cover is cylindrical, and the ultrasonic vibration assembly includes a ring transducer and an amplitude transformer. The ring transducer is rigidly connected to the inner surface of the cover through the amplitude transformer.

10. The cleaner according to claim 1 or 2, characterized in that, The cover is a one-piece metal structure; only the ultrasonic vibration component in the cleaner is rigidly connected to the cover.

11. The cleaner according to claim 1 or 2, characterized in that, A water-proof plate is provided at the opening of the cover, and the opening of the cover is sealed by the water-proof plate, so that the inside of the cover forms a first cavity; the first cavity is a sealed cavity that prevents liquid from entering, the ultrasonic vibration component is installed in the sealed cavity, and the hydroxyl radical generator is installed outside the sealed cavity; one side of the water-proof plate is connected to the cover, and the other side is connected to the bottom shell, the bottom shell has an opening facing the water-proof plate, the bottom shell is fixedly connected to the water-proof plate, and forms a second cavity, the second cavity has an opening for liquid to enter and exit, and the part of the hydroxyl radical generator that is used to contact the liquid and perform the electrolysis function is located in the second cavity.

Images