Ultrasonic cleaner

Abstract

To provide an ultrasonic cleaner that can be suitably used for dental products such as dental prostheses and orthodontic appliances.SOLUTION: An ultrasonic cleaner according to an embodiment disclosed herein comprises: a container unit that opens in an upward direction and includes an accommodation space accommodating an object to be cleaned; and a cover unit that is coupled to the upper portion of the container unit and seals the accommodation space, wherein the object to be cleaned accommodated in the container unit is sterilized by sterilization light and cleaned by ultrasonic vibrations.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an ultrasonic cleaner, and more particularly, to an ultrasonic cleaner that can be suitably used for dental supplies such as dental prostheses and dental orthodontic appliances.

Background Art

[0002] For cleaning various objects, various types of cleaning devices have been developed and used for household and / or industrial purposes. Recently, cleaners specialized for cleaning dental supplies such as dental prostheses and dental orthodontic appliances have been developed, and users of dental supplies can easily manage the hygiene of the dental supplies.

[0003] In order to clean and sterilize the surface of dental supplies, a method of irradiating light of a specific wavelength (for example, ultraviolet light) and applying ultrasonic vibration is applied. In addition, there is a user's requirement that the cleaner must be miniaturized into a form that is easy to carry in order to clean dental supplies at various positions.

[0004] On the other hand, conventional cleaners have been difficult for users to carry due to their size. In addition, conventional cleaners have a problem in that the connection between components is not strong, there is a risk of separation between components, and it is difficult to maintain a state in which each component is aligned.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In order to solve the above problems, the disclosed embodiments of the present invention provide a portable ultrasonic cleaner that can effectively sterilize and clean a cleaning object.

[0007] Furthermore, the embodiments disclosed in the present invention provide an ultrasonic cleaner with improved ease of assembly, which allows the relative positions between components to be maintained at a constant level.

[0008] Furthermore, the disclosed embodiments of the present invention provide an ultrasonic cleaner in which the first and second light units operate in conjunction, and the third light unit and a status indicator light operate in conjunction, allowing for easy confirmation of the status (sterilization state, charging state).

[0009] The technical problems of the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0010] To solve the above problems, the ultrasonic cleaner according to the disclosed embodiment of the present invention includes a container unit that is open to the top and contains a storage space for accommodating an object to be cleaned, and a cover unit that is bonded to the top of the container unit and seals the storage space, wherein the object to be cleaned contained in the container unit is sterilized by germicidal light and cleaned by ultrasonic vibration.

[0011] Furthermore, the container unit includes an outer container unit which includes a side portion that forms an outer peripheral surface and a bottom portion which forms a bottom surface at one end of the side portion, and an inner container unit which has a shape corresponding to the outer container unit and is arranged to be housed inside the outer container unit, and the outer container unit and the inner container unit are made of different materials.

[0012] Furthermore, the container unit may include an ultrasonic vibration module for ultrasonically cleaning the surface of an object to be cleaned by vibrating a medium filled in the containment space, and the ultrasonic vibration module may include a vibrating plate which is at least partially contained in the medium and directly vibrates the medium, a first substrate which controls the vibrating plate and supplies power to the vibrating plate, and a substrate holder for fixing the first substrate in the container unit.

[0013] Furthermore, the substrate holder may include a ring portion formed in a ring shape to correspond to the inner circumferential surface of the side portion of the outer container unit of the container unit, and a first projection on the substrate holder side that protrudes downward from one side of the ring portion by a predetermined first projection height and is housed in a part of the upper bottom surface of the outer container unit of the container unit.

[0014] Furthermore, the first protrusion on the substrate holder side includes a plurality of first protrusion units on the substrate holder side, and each of the plurality of first protrusion units on the substrate holder side is formed at a constant first angular interval with respect to the radial center of the substrate holder.

[0015] Furthermore, the width of each of the multiple first protruding units on the substrate holder side is formed in a tapered shape that gradually decreases as it protrudes downward from the ring portion side.

[0016] Furthermore, the substrate holder may further include a second protrusion on the substrate holder side that protrudes upward from the other side of the ring portion by a predetermined second protrusion height and is aligned with a part of the inner circumferential surface of the side surface of the outer container unit of the container unit.

[0017] Furthermore, the second protrusion on the substrate holder side may include at least one second protrusion unit on the first type substrate holder side that forms a ring structure and includes a groove for accommodating the second protrusion on the substrate holder side, and at least one second protrusion unit on the second type substrate holder side that forms an uneven structure in the vertical direction and includes a slit for accommodating the second protrusion on the substrate holder side.

[0018] Furthermore, the container unit may further include a ring-shaped container-cover coupling portion that is fixed in position by the substrate holder, and the container-cover coupling portion may include an outer container mounting portion that protrudes from the container-cover coupling portion body by a predetermined thickness and has an outer diameter corresponding to the outer diameter of the outer container unit, a first protruding unit on the container-cover coupling portion side that is formed at the lower part of the outer container mounting portion and is extended horizontally to have a shape corresponding to the second protruding portion housing groove on the substrate holder side of the substrate holder and is formed to protrude by a constant thickness in the radial direction, and a second protruding unit on the container-cover coupling portion side that is extended vertically to have a shape corresponding to the second protruding portion housing slit on the substrate holder side of the substrate holder and is formed to protrude by a constant thickness in the radial direction.

[0019] Furthermore, the second projection housing groove on the substrate holder side of the substrate holder is aligned with a housing groove on the outer container unit side, which is formed as a radial recess to a predetermined depth on the inner circumferential surface of the outer container unit, and the first projection unit on the container-cover coupling side is housed in the second projection housing groove on the substrate holder side and the housing groove on the outer container unit side, thereby restricting its vertical movement, and the second projection housing slit on the substrate holder side of the substrate holder is aligned with a housing slit on the outer container unit side, which is formed as a radial recess to a predetermined depth on the inner circumferential surface of the outer container unit, and the second projection unit on the container-cover coupling side is housed in the second projection housing slit on the substrate holder side and the housing slit on the outer container unit side, thereby restricting its rotation in one direction.

[0020] Furthermore, the container-cover coupling portion may further include a cover coupling portion which includes a spiral-shaped cover guide projection formed on the upper part of the outer container mounting portion and which protrudes radially to a predetermined thickness from the outer peripheral surface of the container-cover coupling portion body.

[0021] In addition, each of the cover guide protrusions is formed to protrude at equal intervals within a range of 30° to 90° with respect to the radial center of the container-cover coupling part body. The cover unit is formed to protrude inward from its inner peripheral surface by a predetermined thickness, and includes cover protrusions formed in the same number and shape as the cover guide protrusions. The cover unit can rotate in one direction so as to correspond to the angular range in which the cover guide protrusions are formed, thereby opening or closing the accommodation space.

[0022] In addition, the inner container unit can include a light transmission part that has a predetermined transmission radius and opens at the center part, or is formed of a light transmissive material.

[0023] In addition, the container unit includes a sterilization module that irradiates light within a certain wavelength range onto the object to be cleaned accommodated in the accommodation space. The sterilization module includes a first light unit that transmits first light in a first wavelength range into the inner container unit through the light transmission part, a second light unit that is formed on one side of the first light unit and transmits second light in a second wavelength range different from the first wavelength range into the inner container unit through the light transmission part, and a third light unit that is formed on one side of the first light unit and transmits third light in a third wavelength range different from the first wavelength range and the second wavelength range into the inner container unit through the light transmission part.

[0024] In addition, the first wavelength range is a wavelength range in the ultraviolet region, the first light is the sterilization light, and the second wavelength range and the third wavelength range may be wavelength ranges in the visible light region.

[0025] In addition, the second light unit is interlocked with the first light unit, and the second light unit can operate together with the operation of the first light unit.

[0026] Further, a pair of the second optical units are disposed opposite to each other with the first optical unit as the center, a pair of the third optical units are disposed opposite to each other with the first optical unit as the center, and the third optical units are spaced apart from the second optical units.

[0027] Further, the second optical units and the third optical units are alternately arranged along an angular direction with the first optical unit as the center.

[0028] Further, the container unit further includes a charging terminal that receives an external power source to charge a power supply unit built inside the outer container unit, and a side unit formed on one side of the charging terminal and including a status indicator lamp that indicates the status of the power supply unit. The status indicator lamp is interlocked with the third optical unit, and the status indicator lamp can operate together by the operation of the third optical unit.

Advantages of the Invention

[0029] According to the proposed embodiment, there is an advantage that the object to be cleaned can be sterilized and cleaned using the ultrasonic cleaner according to the present invention, which is portable without visiting the place where the ultrasonic cleaning device is provided, via the ultrasonic cleaner according to the disclosed embodiment of the present invention.

[0030] Further, the ultrasonic cleaner according to the disclosed embodiment of the present invention has an advantage that the object to be cleaned can be maintained in a hygienic state by the surface vibration of the object to be cleaned due to ultrasonic vibration and the sterilization of the object to be cleaned by irradiation with sterilizing light.

[0031] Further, the ultrasonic cleaner according to the disclosed embodiment of the present invention can position the first substrate, the container-cover coupling portion, and the outer container unit in an aligned state via the substrate holder, so that the assemblability between the components of the ultrasonic cleaner is improved, and there is an advantage that stable coupling and operation are possible.

[0032] Furthermore, the ultrasonic cleaner according to the disclosed embodiment of the present invention has the advantage that the components can be fixed in place in an aligned state, as the first protruding unit and the second protruding unit on the container-cover joint side, formed at the container-cover joint, are housed in the outer container unit and the substrate holder, respectively, and their vertical movement and unidirectional rotation are restricted.

[0033] Furthermore, the ultrasonic cleaner according to the disclosed embodiment of the present invention has the advantage that the cover guide protrusions are formed to protrude at equal intervals within a certain angular range, and the storage space is opened or closed by rotating the cover unit to correspond to that angular range, so that the storage space can be easily opened or closed by rotating the cover unit within 90°.

[0034] Furthermore, the ultrasonic cleaner according to the disclosed embodiment of the present invention has the advantage of easily indicating the operating status of the ultrasonic cleaner to the user by indicating whether or not the first light unit is operating via a second light unit that is linked to the first light unit that irradiates germicidal light.

[0035] Furthermore, the ultrasonic cleaner according to the disclosed embodiment of the present invention has the advantage of easily indicating the power status of the ultrasonic cleaner to the user by displaying the charging status of the power supply unit on both the top and side via a status indicator light linked to the third light unit. [Brief explanation of the drawing]

[0036] [Figure 1] This is a perspective view of an ultrasonic cleaner according to an embodiment of the disclosed invention. [Figure 2] This is an exploded perspective view of an ultrasonic cleaner according to an embodiment disclosed in the present invention. [Figure 3] This is a front view of an ultrasonic cleaner according to an embodiment disclosed in the present invention. [Figure 4] Figure 4(a) is a rear view of an ultrasonic cleaner according to an embodiment disclosed in the present invention, and Figure 4(b) is a rear view of an ultrasonic cleaner according to an embodiment disclosed in the present invention with the side unit protection removed in order to illustrate the side unit. [Figure 5] This figure shows the inverted shape of a cover unit, which is a component of an ultrasonic cleaner according to an embodiment disclosed in the present invention. [Figure 6] This is a perspective view illustrating a container unit, which is a component of an ultrasonic cleaner according to an embodiment disclosed in the present invention. [Figure 7] This is a front view illustrating a container unit, which is a component of an ultrasonic cleaner according to an embodiment disclosed in the present invention. [Figure 8] This is a perspective view illustrating the process by which the container unit and the cover unit are coupled in an ultrasonic cleaner according to an embodiment of the present invention. [Figure 9] This figure illustrates a sterilization module, which is a component of the container unit of an ultrasonic cleaner according to an embodiment of the disclosed present invention. [Modes for carrying out the invention]

[0037] The advantages and features of the present invention, and how to achieve them, will become clear with reference to the examples described below in detail, along with the accompanying drawings. However, the present invention is not limited to the examples disclosed below, and can be realized in a variety of different forms. These examples are provided merely to complete the disclosure of the present invention and to fully inform those who are ordinary skill in the art to which the present invention pertains, and the present invention is defined solely by the scope of the claims.

[0038] Although terms such as "first," "second," etc., are used to describe a variety of components, these components are not limited by these terms. These terms are simply used to distinguish one component from another. Therefore, the first component mentioned below may, of course, be the second component within the technical concept of the present invention.

[0039] Throughout the specification, the same reference numerals refer to the same components.

[0040] The features of each of the various embodiments of the present invention can be combined or linked together in part or in whole, and a wide range of technical interdependencies and drives are possible, as can be fully understood by those skilled in the art. Each embodiment may be implemented independently of the others or in correlation with each other.

[0041] On the other hand, provisional effects that can be expected from the technical features of the present invention that are not specifically mentioned in the specification of the present invention are to be treated as described herein, and these embodiments are provided to give a more complete explanation of the present invention to a person of average skill in the art, although the contents shown in the drawings may be exaggerated compared to actual embodiments of the invention, and detailed descriptions of configurations that are deemed to unnecessarily obscure the gist of the invention are omitted or simplified.

[0042] The disclosed embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0043] Figure 1 is a perspective view of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention, Figure 2 is an exploded perspective view of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention, Figure 3 is a front view of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention, Figure 4(a) is a rear view of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention, and Figure 4(b) is a rear view of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention with the side unit cover 250 removed to illustrate the side unit 240.

[0044] Referring to Figures 1 to 4(b), the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention includes a container unit 100 and a cover unit 300. That is, the ultrasonic cleaner 1 is formed in such a way that the container unit 100 and the cover unit 300 can be separated from or joined to each other.

[0045] For example, the container unit 100 includes a storage space (for example, a space formed inside the inner container unit described later) for accommodating an object to be cleaned (not shown), and is open to the top. The object to be cleaned may include dental supplies such as dental prostheses and orthodontic appliances worn by the user in the mouth. The ultrasonic cleaner 1 according to the disclosed embodiment of the present invention is manufactured to a size large enough to accommodate the object to be cleaned, thereby enabling the ultrasonic cleaner 1 to be manufactured in a portable size.

[0046] The cover unit 300 is formed by joining it to the top of the container unit 100, thereby sealing the aforementioned storage space. The cover unit 300 is formed in a dome shape, but is not necessarily limited to the example described. The structure of the cover unit 300 can have a shape that can safely protect the object to be washed stored in the storage space while sealing the storage space of the container unit 100 from the outside.

[0047] Furthermore, the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention can be sterilized and cleaned by a sterilization means and a cleaning means.

[0048] In the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the object to be cleaned, housed in the container unit 100, can be sterilized by germicidal light. For example, the germicidal light may be UV-A light or UV-C light having a relatively small wavelength range. When the object to be cleaned is housed in the storage space of the container unit 100, germicidal light is irradiated into the inside of the container unit 100, and the object to be cleaned can be sterilized by the germicidal light transmitted through a light-transmitting medium (e.g., air, liquid, etc.) and maintain a hygienic state.

[0049] In the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the object to be cleaned, housed in the container unit 100, can be cleaned by ultrasonic vibration. For example, with the object to be cleaned housed in the housing space of the container unit 100, a vibration plate that generates ultrasonic waves can vibrate, and the object to be cleaned can be cleaned by vibration energy transmitted through a vibration transmission medium (e.g., a liquid) and maintain a hygienic state. More specifically, a cavitation phenomenon occurs in which bubbles are generated within the vibration transmission medium that receives vibration energy, and the physical force generated by these bubbles is applied to the surface of the object to be cleaned, thereby cleaning the object and maintaining a hygienic state.

[0050] On the other hand, while the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention will be described throughout the specification of the present invention, it should be understood that the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is a device that can perform the sterilization process of the object to be cleaned using germicidal light.

[0051] The detailed configuration of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention will be described in more detail below.

[0052] Referring to Figures 1 to 4(b) (and in particular to Figure 2), a container unit 100, which is a component of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, can include a variety of detailed components. For example, the container unit 100 can include outer container units 120 and 150. The outer container units 120 and 150 can form the outer surface of the container unit 100. More specifically, the outer container units 120 and 150 can include a side portion 150 that forms the outer circumferential surface of the container unit 100, and a bottom portion 120 that forms the bottom surface at one end of the side portion 150.

[0053] The bottom portion 120 can form the base surface on which the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention is placed on the ground. The bottom portion 120 can have a shape corresponding to the outer circumferential surface of the container unit 100. For example, if the container unit 100 has a cylindrical structure with an open top, the bottom surface of the bottom portion 120 is formed to have a disc structure. The bottom surface of the bottom portion 120 may also include a cushioning unit 110 that has a constant thickness in the vertical direction (e.g., in the direction of gravity) along its outer circumferential surface, and the bottom portion 120 is formed to protrude downward from the bottom surface. The cushioning unit 110 is made of a highly elastic and highly frictional material such as rubber or urethane. In this case, "high elasticity" means that the modulus of elasticity is relatively large compared to other materials, and "high friction" means that the coefficient of friction (e.g., coefficient of static friction) is relatively large compared to other materials. Therefore, when the bottom 120 is placed on the ground and supports the ultrasonic cleaner 1 including the container unit 100, the upper surface of the cushioning unit 110 adheres to a portion of the bottom surface of the bottom 120, while the lower surface of the cushioning unit 110 contacts the ground, which can mitigate the impact applied to the container unit 100 and has the advantage of preventing it from moving from the ground on which it is placed due to external forces.

[0054] The side portion 150 can form the outer circumferential surface of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention and can form a contour for protecting the object to be cleaned. The side portion 150 can have a shape that communicates in the vertical direction. The side portion 150 also has at least one opening formed in at least a part of its outer circumferential surface. More specifically, the side portion 150 may include a first opening formed on one side and a second opening formed at a predetermined distance from the first opening. An input unit 230 for turning the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention on and off is disposed in the first opening of the side portion 150, and a side unit 240 for supplying external power to the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention is disposed in the second opening of the side portion 150.

[0055] Furthermore, the side portion 150 of the outer container units 120 and 150 of the container unit 100 may include a receiving groove 151 on the outer container unit side, a protruding rib 152 on the outer container unit side, and a receiving slit 153 on the outer container unit side on the inner circumferential surface. The receiving groove 151 and the protruding rib 152 on the outer container unit side allow the outer container units 120 and 150 to align and connect with the substrate holder 170 and the container-cover connecting portion 220, which will be described later. The connection between the outer container units 120 and 150, the substrate holder 170, and the container-cover connecting portion 220 will be described later.

[0056] Furthermore, at least one seal unit 125 is formed between the bottom portion 120 and the side portion 150 of the outer container units 120 and 150. The at least one seal unit 125 seals the gap between the outer peripheral surface of the bottom portion 120 and the inner peripheral surface of the side portion 150 and is made of a waterproof material. The formation of at least one seal unit 125 to seal the space between the bottom portion 120 and the side portion 150 has the advantage of enabling waterproofing of components (e.g., power supply unit, first substrate, second substrate, etc.) placed inside the outer container units 120 and 150.

[0057] The ultrasonic cleaner 1 according to the disclosed embodiment of the present invention may include a power supply unit 130 so that it is portable to the user and can operate even when no other external power source is supplied. The power supply unit 130 can supply the necessary power to components for checking the sterilization and / or cleaning operation of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, and the sterilization operation state and / or power supply state.

[0058] The power supply unit 130 may be a DC power supply device that has a constant potential difference and can supply uniform power to the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention. For example, the power supply unit 130 may be at least one of well-known DC power supply devices such as a rechargeable lithium-polymer battery or a dry cell, but is not necessarily limited to the examples listed. The power supply unit 130 is mounted above the bottom 120 of the outer container units 120, 150 described above. The bottom 120 can serve to reliably protect the outer surface of the power supply unit 130 from the external environment (e.g., physical shock, chemical influence). For example, the upper part of the bottom 120 is formed into a rib structure to support at least a portion of the outer circumferential surface of the power supply unit 130.

[0059] Furthermore, the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention may further include a power supply unit fixing part 140. The power supply unit fixing part 140 is formed on the upper part of the power supply unit 130 and can prevent the power supply unit 130 from detaching from the bottom part 120.

[0060] In the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the container unit may include an inner container unit 210. The inner container unit 210 can substantially form a containment space inside which an object to be cleaned can be accommodated. The inner container unit 210 may have an open shape at the top and may have an overall shape corresponding to the outer container units 120 and 150 described above. For example, if the outer container units 120 and 150 have an open cylindrical shape at the top, the inner container unit 210 may also have an open cylindrical shape at the top. The inner container unit 210 is arranged to be housed inside the outer container units 120 and 150. In order for the inner container unit 210 to be stably housed in the outer container units 120 and 150, the outer diameter of the inner container unit 210 is formed to be smaller than the inner diameter of the outer container units 120 and 150, and the height of the inner container unit 210 is formed to be smaller than the height of the side portion 150 of the outer container units 120 and 150.

[0061] Furthermore, the inner container unit 210 is made of a material suitable for hygienically storing the items to be cleaned. More specifically, the outer container units 120, 150 and the inner container unit 210 are made of different materials. For example, the material of the outer container units 120, 150 may be at least one of well-known plastic resin materials including polycarbonate (PC), ABS, or mixtures thereof, and the material of the inner container unit 210 may be stainless steel, which has strong corrosion resistance, stain resistance, and is suitable for ultrasonic cleaning. This allows the outer container units 120, 150 to be made of a lightweight material, thereby reducing the weight of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention and improving its portability for the user, while the inner container unit 210 allows for hygienic storage and management of the items to be cleaned.

[0062] The ultrasonic vibration modules 160, 170, and 180, which are components of the container unit 100, will be described below.

[0063] As shown in Figures 1 to 4 (particularly Figure 2), the container unit 100 of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention may include ultrasonic vibration modules 160, 170, and 180. The ultrasonic vibration modules 160, 170, and 180 can provide ultrasonic vibrations to the object to be cleaned housed in the inner container unit 210. More specifically, the ultrasonic vibration modules 160, 170, and 180 can ultrasonically clean the surface of the object to be cleaned by vibrating the medium filled in the housing space (the space formed inside the inner container unit).

[0064] The ultrasonic vibration modules 160, 170, and 180 may include a vibrating plate 180, a first substrate 160, and a substrate holder 170. For example, the first substrate 160 is located at the bottom of the ultrasonic vibration modules 160, 170, and 180 and can control the vibrating plate 180 and supply power to the vibrating plate 180 to deliver ultrasonic vibrations to the medium. The substrate holder 170 can serve to fix the first substrate 160 so that it can be fixed in place inside the container unit 100. The vibrating plate 180 may be attached to and / or in contact with the outside of the inner container unit 210 (more specifically, the outside of the bottom surface of the inner container unit 210). The vibration plate 180 of the ultrasonic vibration modules 160, 170, and 180 transmits vibration energy to the inner container unit 210, causing the medium housed inside the inner container unit 210 to vibrate, thereby applying a physical force generated by the bursting of bubbles produced by cavitation on the surface of the object to be cleaned. This vibration energy allows foreign matter adhering to the surface of the object to be cleaned to be removed from the object.

[0065] Furthermore, the substrate holder 170 for positioning the first substrate 160 in the container unit 100 may include a ring portion 171. The ring portion 171 is formed in a ring shape so as to correspond to the inner circumferential surface of the side portion 150 of the outer container units 120 and 150 of the container unit 100. That is, the ring portion 171 is formed in a shape that can be easily accommodated inside the side portion 150 of the outer container units 120 and 150. The outer circumferential surface of the ring portion 171 can be supported by a part of the inner circumferential surface of the side portion 150.

[0066] Furthermore, the substrate holder 170 may include a first projection 172 on the substrate holder side. For example, the first projection 172 on the substrate holder side is formed to protrude downward from one side of the ring portion 171 by a predetermined first projection height. The first projection 172 on the substrate holder side is fastened to the outer container units 120 and 150 of the container unit 100. That is, the bottom portion 120 and the side portion 150 of the outer container units 120 and 150, respectively, may include fastening holes (not shown) for fastening to the first projection 172 on the substrate holder side. At least a portion of the first projection 172 on the substrate holder side is fastened to the bottom portion 120 and the side portion 150 via fastening members (e.g., including at least one bolt or rivet), thereby allowing the first substrate 160 to be fixed in place inside the container unit 100.

[0067] More specifically, the first protrusion 172 on the substrate holder side may include a plurality of first protrusion units 172a on the substrate holder side. Each of the plurality of first protrusion units 172a on the substrate holder side is formed in a pin shape for connection with the aforementioned outer container units 120 and 150. Furthermore, each of the plurality of first protrusion units 172a on the substrate holder side is formed at a constant first angular interval with respect to the radial center of the substrate holder 170. For example, if three plurality of first protrusion units 172a on the substrate holder side are provided, the plurality of first protrusion units 172a on the substrate holder side are formed separated from each other at an interval of 120°. In this way, the plurality of first protrusion units 172a on the substrate holder side are formed at a constant first angular interval, which has the advantage of preventing the substrate holder 170 from tilting to one side and stably supporting the first substrate 160, etc.

[0068] On the other hand, the first substrate 160 may include a first substrate body 161 and a substrate holder housing portion 162 on the first substrate side that is partially recessed inward on a part of the outer peripheral surface of the first substrate body 161. Multiple first protruding units 172a on the substrate holder side of the first protrusion 172 on the substrate holder side can penetrate the substrate holder housing portion 162 on the first substrate side from top to bottom. At this time, the width of each of the multiple first protruding units 172a on the substrate holder side is formed in a tapered shape that gradually decreases as it protrudes downward from the ring portion 171 side. By forming the width of each of the multiple first protruding units 172a on the substrate holder side in a tapered shape, the substrate holder 170 can more easily fix the first substrate 160.

[0069] In some cases, the width around the recessed portion 162 of the substrate holder housing on the first substrate side can correspond to any one of the multiple first protruding units 172a on the substrate holder side. More specifically, the multiple first protruding units 172a on the substrate holder side can have a first tapered width w1 on the ring portion 171 side, and can decrease in width to a second tapered width w2 as they extend downward. In this case, the width around the recessed portion 162 of the substrate holder housing on the first substrate side is formed to be less than or equal to the average of the first tapered width w1 and the second tapered width w2. This allows the first substrate 160 to be fixed in place within the container unit 100 by the substrate holder 170, which has the advantage of improving the stability of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0070] Furthermore, the substrate holder 170 may further include second protrusions 173 and 175 on the substrate holder side. The second protrusions 173 and 175 on the substrate holder side are formed to protrude upward from the other side of the ring portion 171 by a predetermined second protrusion height. For example, the second protrusions 173 and 175 on the substrate holder side are formed to protrude upward from the side opposite to the side from which the aforementioned first protrusion 172 on the substrate holder side protrudes from the ring portion 171 (for example, the upper side of the ring portion 171). The second protrusions 173 and 175 on the substrate holder side are aligned with a part of the inner circumferential surface of the side portion 150 of the outer container units 120 and 150 of the container unit 100. This allows the substrate holder 170 to firmly connect the first substrate 160 and the outer container units 120 and 150.

[0071] More specifically, the second protrusions 173 and 175 on the substrate holder side may include at least one second protrusion unit 173 on the first type substrate holder side and at least one second protrusion unit 175 on the second type substrate holder side. The second protrusion unit 173 on the first type substrate holder side may form a ring structure and include a groove for housing the second protrusion on the substrate holder side. The second protrusion unit 175 on the second type substrate holder side may form an uneven structure in the vertical direction. For example, the second protrusion unit 175 on the second type substrate holder side may include a pair of guide protrusions 175a and include a slit 175b for housing the second protrusion on the substrate holder side between the pair of guide protrusions 175a. This allows the container-cover coupling portion 220, described later, to be easily and firmly coupled.

[0072] The container-cover connecting part 220, which connects the cover unit 300 and the container unit 100, will be described below.

[0073] A container unit 100, which is a component of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention, may further include a container-cover coupling portion 220. The container-cover coupling portion 220 can be fixedly positioned inside the container unit 100 by a substrate holder 170. The container-cover coupling portion 220 is formed in a ring shape, and a portion of the container-cover coupling portion 220 rests on the upper part of the side portion 150 of the outer container units 120, 150.

[0074] More specifically, the container-cover coupling portion 220 may include an outer container mounting portion 221 that protrudes from the container-cover coupling portion body (not shown) by a predetermined thickness and has an outer diameter corresponding to the outer diameter of the outer container units 120 and 150. That is, the outer container mounting portion 221 can be located on the upper part of the side portion 150 of the outer container units 120 and 150, and is coupled so that the outer container mounting portion 221 is supported by the upper side of the side portion 150. This prevents the container-cover coupling portion 220 from being excessively inserted into the interior of the outer container units 120 and 150.

[0075] Furthermore, the container-cover coupling portion 220 may include an outer container coupling portion 222. The outer container coupling portion 222 can form the lower part of the container-cover coupling portion body and can be formed below the outer container mounting portion 221 with respect to the outer container mounting portion 221. The outer circumferential surface of the outer container coupling portion 222 can be protected from the outside by the side portion 150 of the outer container units 120 and 150.

[0076] On the other hand, the outer container coupling portion 222 may include a configuration for coupling with the side portion 150 of the outer container units 120 and 150, and the substrate holder 170.

[0077] For example, the outer container coupling portion 222 may include a first protruding unit 223 on the container-cover coupling portion side. The first protruding unit 223 on the container-cover coupling portion side is horizontally extended and formed to have a shape corresponding to the second protruding portion housing groove on the substrate holder side of the substrate holder 170, and is formed to protrude radially to a certain thickness. More specifically, the first protruding unit 223 on the container-cover coupling portion side is housed and coupled to a part of the second protruding unit 173 on the first type substrate holder side of the second protruding portions 173 and 175 on the substrate holder side of the substrate holder 170 described above. The first protruding unit 223 on the container-cover coupling portion side can protrude in a dash (-) shape.

[0078] As another example, the outer container coupling portion 222 may include a rib housing unit 224 on the container-cover coupling portion side. The rib housing unit 224 on the container-cover coupling portion side is formed to have a vertical opening so as to have a shape corresponding to a protruding rib 152 on the outer container unit side, which is a component of the side portion 150 of the outer container units 120, 150. The rib housing unit 224 on the container-cover coupling portion side can accommodate the protruding rib 152 on the outer container unit side along the vertical direction.

[0079] As yet another example, the outer container coupling portion 222 may include a second protruding unit 225 on the container-cover coupling portion side. The second protruding unit 225 on the container-cover coupling portion side is vertically extended to have a shape corresponding to the second protruding portion housing slit 175b on the substrate holder side of the substrate holder 170, and is formed to protrude radially to a certain thickness. More specifically, the second protruding unit 225 on the container-cover coupling portion side is guided by a pair of guide protrusions 175a of the second protruding unit 175 on the second type substrate holder side of the substrate holder 170, as described above, and is housed and coupled to the second protruding portion housing slit 175b on the substrate holder side. The second protruding unit 225 on the container-cover coupling portion side can protrude in a column shape.

[0080] The following describes the coupling relationship between the substrate holder 170, the container-cover coupling portion 220, and the outer container units 120 and 150.

[0081] In the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the side portion 150 of the outer container units 120 and 150 may further include a receiving groove 151 on the outer container unit side on its inner circumferential surface. For example, the receiving groove 151 on the outer container unit side is formed as a radial recess to a predetermined depth on the inner circumferential surface of the side portion 150 of the outer container units 120 and 150. The shape of the receiving groove 151 on the outer container unit side can correspond to the first protruding unit 223 on the container-cover coupling portion side of the container-cover coupling portion 220.

[0082] More specifically, the second projection housing groove on the substrate holder side of the second projection unit 173 on the first type substrate holder side of the substrate holder 170 is aligned with the housing groove 151 on the outer container unit side, and the first projection unit 223 on the container-cover coupling side is housed in both the second projection housing groove on the substrate holder side and the housing groove 151 on the outer container unit side, thereby restricting vertical movement. More specifically, the first projection units 223 on the container-cover coupling side are arranged in two rows, at least one of the first projection units 223 on the container-cover coupling side is housed in the second projection housing groove on the substrate holder side of the substrate holder 170, and the remaining one of the first projection units 223 on the container-cover coupling side is housed in the housing groove 151 on the outer container unit side, thereby restricting vertical movement. As a result, the container-cover coupling 220 maintains its configuration coupled to the substrate holder 170 and the outer container units 120 and 150, thus forming a stable assembly structure.

[0083] Furthermore, in the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the side portion 150 of the outer container units 120 and 150 may further include a protruding rib 152 on the outer container unit side on its inner circumferential surface. For example, the protruding rib 152 on the outer container unit side is formed to protrude to a predetermined depth in the direction toward the central axis on the inner circumferential surface of the side portion 150 of the outer container units 120 and 150. The shape of the protruding rib 152 on the outer container unit side can correspond to the rib housing unit 224 on the container-cover coupling side of the container-cover coupling portion 220.

[0084] More specifically, the rib housing unit 174 on the substrate holder side of the substrate holder 170 is aligned with the protruding rib 152 on the outer container unit side, which is formed to protrude inward to a predetermined thickness from the inner circumferential surface of the side portion 150 of the outer container units 120 and 150. The protruding rib 152 on the outer container unit side is housed in the rib housing unit 174 on the substrate holder side and the rib housing unit 224 on the container-cover coupling side, restricting rotation in one direction. As a result, the container-cover coupling 220 maintains a state of being coupled to the substrate holder 170 and the outer container units 120 and 150, thus forming a stable assembly structure.

[0085] Furthermore, in the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the side portion 150 of the outer container units 120 and 150 may further include a housing slit 153 on the outer container unit side on its inner circumferential surface. For example, the housing slit 153 on the outer container unit side is formed as a radial recess to a predetermined depth on the inner circumferential surface of the side portion 150 of the outer container units 120 and 150. The shape of the housing slit 153 on the outer container unit side can correspond to the second protruding unit 225 on the container-cover coupling portion side of the container-cover coupling portion 220.

[0086] More specifically, the second projection housing slit 175b on the substrate holder side of the second projection unit 175 on the second type substrate holder side of the substrate holder 170 is aligned with the housing slit 153 on the outer container unit side, which is formed as a radial recess to a predetermined depth on the inner circumferential surface of the side portion 150 of the outer container units 120 and 150. The second projection unit 225 on the container-cover coupling side is housed in the second projection housing slit 175b on the substrate holder side and the housing slit 153 on the outer container unit side, restricting rotation in one direction. As a result, the container-cover coupling 220 maintains its coupled form with the substrate holder 170 and the outer container units 120 and 150, thus forming a stable assembly structure.

[0087] As described above, since the movement of the outer container units 120, 150, the substrate holder 170, and the container-cover joint 220 is structurally restricted, the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention has the advantage of being able to form a robust assembly structure.

[0088] The following describes the detailed configuration of the cover unit 300 and the relationship between the container-cover joint 220 and the cover unit 300.

[0089] Figure 5 shows the inverted shape of the cover unit 300, which is a component of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention; Figure 6 is a perspective view illustrating the container unit 100, which is a component of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention; Figure 7 is a front view illustrating the container unit 100, which is a component of the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention; and Figure 8 is a perspective view illustrating the process by which the container unit 100 and the cover unit 300 are joined together in the ultrasonic cleaner 1 according to a disclosed embodiment of the present invention.

[0090] Referring to Figures 1 to 8 in general, in the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, the container-cover coupling 220 may further include a cover coupling 226. The cover coupling 226 may form the upper part of the container-cover coupling body and is formed on the upper part of the outer container mounting part 221 with respect to the outer container mounting part 221. The cover coupling 226 may include a helical cover guide projection 227 that is formed to project radially to a predetermined thickness from the outer circumferential surface of the container-cover coupling body for coupling with the cover unit 300, which will be described later. The helical shape of the cover guide projection 227 causes the cover unit 300 to rotate relative to the outer circumferential surface of the container-cover coupling 220 and to couple with the container unit 100, preventing the object to be cleaned and / or the medium for ultrasonic vibration contained in the inner container unit 210 from detaching to the outside.

[0091] More specifically, each cover guide projection 227 is formed to protrude at equal intervals within a range of 30° to 90° with respect to the radial center of the container-cover joint body. For example, the cover joint 226 may include four spirally shaped cover guide projections 227 having a predetermined helical angle (θ), and each cover guide projection 227 is formed to have a projection angle (Φ) of 90°. As another example, the cover joint 226 may include six spirally shaped cover guide projections 227 having a predetermined helical angle (θ), and each cover guide projection 227 is formed to have a projection angle (Φ) of 60°.

[0092] On the other hand, the cover unit 300 coupled to the container unit 100 may include a cover unit body 310. The cover unit body 310 can cover the outer circumferential surface of the container-cover coupling portion 220, thereby protecting the object to be cleaned and other items contained inside the container unit 100 from the external environment. The cover unit body 310 may include a cover unit side portion 311, a cover unit upper portion 312, and a cover unit opening 313. The cover unit side portion 311 may constitute the side surface of the cover unit body 310, and the cover unit upper portion 312 may extend from the cover unit side portion 311 and constitute the upper surface of the cover unit body 310. The cover unit opening 313 is formed in at least a portion of the cover unit upper portion 312, and a cover unit lens portion 320 is positioned therein, which allows the state of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention to be confirmed by the operation of the second substrate 190, which houses the sterilization modules 201, 202, and 203.

[0093] Furthermore, the cover unit 300 may include a cover unit body-lens coupling portion 330, and the cover unit body-lens coupling portion 330 may include a cover unit body-lens coupling groove 331 on its upper part. The cover unit body 310 and the cover unit lens portion 320 can be stably coupled via the cover unit body-lens coupling groove 331.

[0094] The cover unit 300 may also include a seal cap 340. The seal cap 340 can prevent contents contained inside the container unit 100 (e.g., a medium for ultrasonic cleaning of objects to be cleaned) from escaping when the cover unit 300 is coupled to the container unit 100. The seal cap 340 contacts the upper part of the container-cover coupling 220 when the cover unit 300 is coupled to the container unit 100, thereby sealing the space between the container-cover coupling 220 and the cover unit 300. The seal cap 340 is formed of at least one of a highly elastic material such as rubber or urethane.

[0095] Furthermore, the main body 310 of the cover unit 300 may include cover protrusions 314 on its inner circumferential surface. The cover protrusions 314 are formed to protrude inward from the inner circumferential surface of the cover unit (more specifically, the main body 310 of the cover unit) to a predetermined thickness and are formed in a number and shape corresponding to the cover guide protrusions 227 described above. For example, if the cover joint portion 226 includes four spirally shaped cover guide protrusions 227, then four spirally shaped cover protrusions 314 are also formed.

[0096] The cover unit 300 can open or close the storage space by rotating it in one direction to correspond to the angular range (e.g., protrusion angle) in which the cover guide protrusions 227 are formed to protrude. At this time, depending on the number of cover guide protrusions 227 and the protrusion angle (Φ), the storage space can be easily opened or closed even when the cover unit 300 is rotated to 90° or less. As a result, users of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention can open and close the storage space even when the cover unit 300 is rotated only by a small angle relative to the container unit 100, thus improving the ease of use of the ultrasonic cleaner 1.

[0097] The following describes the operation of the sterilization module installed on the second circuit board 190 to sterilize the object to be cleaned and to inform the user of the status of the ultrasonic cleaner 1.

[0098] Figure 9 is a diagram illustrating a sterilization module installed inside a second substrate 190, which is a component of the container unit 100 of the ultrasonic cleaner 1 disclosed in the present invention.

[0099] Referring in general to Figures 1 to 9 (in particular Figures 2 and 9), the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention may include a sterilization module. The sterilization module can irradiate objects to be cleaned contained in the containment space with light in a certain wavelength range. At this time, the light may include germicidal light (e.g., UV-C light) for removing bacteria from the surface of the objects to be cleaned. On the other hand, the sterilization module can receive power to generate light from a second substrate 190 located below it. The germicidal light generated by the sterilization module can be diffused into the internal space of the inner container unit 210 via the sterilization module lens 200, thereby sterilizing the objects to be cleaned stored in the inner container unit 210.

[0100] To transmit light generated from the sterilization module 200 into the inner container unit 210, the inner container unit 210 may include a light-transmitting portion 211 that has an opening in its center with a predetermined transmission radius or is formed of a light-transmitting material. For example, if the light-transmitting portion 211 is formed as an opening, at least a portion of the sterilization module will protrude from the bottom of the inner container unit 210, and the protruding portion of the sterilization module and the inner container unit 210 will be sealed. As another example, if the light-transmitting portion 211 is formed as a light-transmitting lens, the light-transmitting portion 211 will be made of a transparent or translucent material and will be able to guide the light generated by the sterilization module 200 into the inner container unit 210.

[0101] More specifically, the sterilization module may include a first light unit 201, a second light unit 202, and a third light unit 203. The first light unit 201 can transmit first light in a first wavelength range into the interior of the inner container unit 210 via a light-transmitting section 211. The second light unit 202 is formed on one side of the first light unit 201 and can transmit second light in a second wavelength range different from the first wavelength range into the interior of the inner container unit 210 via a light-transmitting section 211. The third light unit 203 is also formed on one side of the first light unit 201 and can transmit third light in a third wavelength range different from the first and second wavelength ranges into the interior of the inner container unit 210 via a light-transmitting section 211.

[0102] For example, the first light generated by the first light unit 201 sterilizes the object to be cleaned, the second light generated by the second light unit 202 serves to inform the user whether sterilization by the first light from the first unit 201 is progressing, and the third light generated by the third light unit 203 serves to inform the user of the operating status of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention. That is, the first wavelength range of the first light generated by the first light unit 201 is the wavelength range of the ultraviolet region, and the first light may be germicidal light. However, since the first light in the ultraviolet region is not visible to the naked eye of the user, it is necessary to visually inform the user whether sterilization by the first light from the first light unit 201 is progressing for the safety of the user. Therefore, the second wavelength range of the second light generated by the second light unit 202 and the third wavelength range of the third light generated by the third light unit 203 may be the wavelength range of the visible light region.

[0103] In particular, the second light unit 202 can be linked with the first light unit 201 to inform the user whether or not sterilization of the object being cleaned by the first light unit 201 is progressing. Therefore, the second light unit 202 can operate together with the operation of the first light unit 201. For example, if germicidal light is irradiated into the inner container unit 210 by the first light unit 201, the second light unit 202 will also operate so that the second light is irradiated into the inner container unit 210, allowing the user to easily perceive whether or not sterilization is progressing on the object being cleaned via the cover unit lens section 320. At this time, the second light may be blue light, and since the user can easily visually recognize the color corresponding to the second light via the cover unit lens section 320, there is an advantage in preventing the risk of accidents to the user.

[0104] On the other hand, the second optical units 202, 202a, and 202b are arranged in pairs facing each other around the first optical unit 201, while the third optical units 203, 203a, and 203b are also arranged in pairs facing each other around the first optical unit 201, but are separated from the second optical units 202, 202a, and 202b. More specifically, the second optical units 202, 202a, and 202b and the third optical units 203, 203a, and 203b are arranged alternately along a single angular direction around the first optical unit 201. As a result, the second and third optical light generated from the second optical units 202, 202a, and 202b, and the third optical units 203, 203a, and 203b are not deflected to one side, and can be easily perceived by the user through the cover unit lens portion 320.

[0105] The third optical unit 203 can operate to inform the user of a different state from that of the second optical unit 202. For example, the third optical unit 203 can display the status of the aforementioned power supply unit 130, blinking (dimming) when the power supply unit 130 is charging and lighting (on) when the power supply unit 130 is fully charged. This has the advantage that the user can easily recognize the charging status of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0106] The following describes a side unit 240, which is one component of the ultrasonic cleaner 1 according to an embodiment disclosed in the present invention.

[0107] Referring to Figures 1 to 9 in general (particularly Figures 2 and 4), the container unit 100 of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention may further include a side unit 240. The side unit 240 may include a charging terminal 241 that receives an external power supply to charge a power supply unit 130 built inside the outer container units 120, 150, and a status indicator light 242 formed on one side of the charging terminal 241 to indicate the (charging) status of the power supply unit 130. The status indicator light 242 can indicate the status of the power supply unit 130, and can blink (dimming) when the power supply unit 130 is charging and light up (on) when the power supply unit 130 is fully charged. This has the advantage that the user can easily recognize the charging status of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0108] On the other hand, the rubber side unit cover 250, which includes the side unit cover body 251, the side unit cover handle portion 252, and the charging terminal protection portion 253 that protects the charging terminal 241, is connected to the side unit cover coupling portion 243 of the side unit 240. At this time, the user flips the side unit cover 250 over to open the side unit 240, and then connects the charging wire to the charging terminal 241 to charge the power supply unit 130 of the ultrasonic cleaner 1. As a result, the user can easily check the status indicator light 242 formed on one side of the charging terminal 241 and easily recognize the charging status of the power supply unit 130.

[0109] Furthermore, the status indicator light 242 operates in conjunction with the third light unit 203, so that the status indicator light 242 operates together with the operation of the third light unit 203. The operation of both the third light unit 203 and the status indicator light 242 provides the advantage that the user can easily check the charging status of the power supply unit 130 regardless of where they view the ultrasonic cleaner 1 from its side or top surface. The operation of the status indicator light 242 corresponds to the operation of the third light unit 203 as described above.

[0110] In some embodiments, the status indicator light 242 may indicate not only the charging status of the power supply unit 130, but also the cleaning and / or sterilization operation of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention. The status indicator light 242 may be operated in conjunction with at least one of the first light unit 201, the second light unit 202, and the third light unit 203, so that the status indicator light 242 operates together with the operation of these units. For example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is performing a cleaning operation, the status indicator light 242 may be operated to illuminate blue. In another example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is performing a sterilization operation, the status indicator light 242 may be operated to illuminate purple. In yet another example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is being charged, the status indicator light 242 may be operated to illuminate in another color, or the blue or purple light may flash. Thus, the present invention has the advantage that the user can easily check the overall status of the ultrasonic cleaner 1 from the side via the status indicator light 242.

[0111] Furthermore, the side unit 240 may further include a status indicator light protective lens 244. The status indicator light protective lens 244 is bonded to the inner surface of the side portion 150 of the outer container units 120 and 150 described above. The status indicator light protective lens 244 covers the status indicator light 242 and is made of a transparent or translucent material. The status indicator light protective lens 244 can transmit light generated by the status indicator light 242 to the outside and can serve to protect the status indicator light 240 from external environmental factors such as external impacts and contamination.

[0112] Although preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and can be implemented in various ways within the scope of the claims, the detailed description of the invention, and the attached drawings, and this also falls within the scope of the present invention. [Explanation of Symbols]

[0113] 1: Ultrasonic cleaner 100: Container unit 170: Substrate holder 220: Container-cover joint 300: Cover Unit

Claims

1. A container unit that includes a storage space for containing the object to be washed and is open on the top, The container unit includes a cover unit which is attached to the upper part of the container unit to seal the storage space, The object to be cleaned, contained in the container unit, is sterilized by germicidal light and cleaned by ultrasonic vibration. The aforementioned container unit is An outer container unit including a side portion that forms the outer circumferential surface and a bottom portion that forms the bottom surface at one end of the side portion, An inner container unit having a shape corresponding to the outer container unit and arranged to be housed inside the outer container unit, The system includes an ultrasonic vibration module for ultrasonically cleaning the surface of an object to be cleaned by vibrating a medium filled in the containment space, The ultrasonic vibration module is A vibrating plate that adheres to and / or contacts the outside of the lower surface of the inner container unit and transmits vibrations to the medium in the containment space via the inner container unit, A first substrate that controls the vibrating plate and supplies power to the vibrating plate, The set includes a substrate holder for positioning the first substrate in the container unit, The aforementioned substrate holder is A ring portion formed in a ring shape to correspond to the inner circumferential surface of the side portion of the outer container unit, An ultrasonic cleaner characterized by including a first projection on the substrate holder side that is formed to protrude downward from one side of the ring portion by a predetermined first projection height and is housed in a part of the bottom upper surface of the outer container unit.

2. The ultrasonic cleaner according to claim 1, characterized in that the outer container unit and the inner container unit are formed of different materials.

3. The first protrusion on the substrate holder side includes a plurality of first protrusion units on the substrate holder side. The ultrasonic cleaner according to claim 1, characterized in that each of the plurality of first protruding units on the substrate holder side is formed at a constant first angular interval with respect to the radial center of the substrate holder.

4. The ultrasonic cleaner according to claim 3, characterized in that the width of each of the plurality of first protruding units on the substrate holder side is formed in a tapered shape that gradually decreases as it protrudes downward from the ring portion side.

5. The aforementioned substrate holder is The ultrasonic cleaner according to claim 1, further comprising a second projection on the substrate holder side that is formed to protrude upward from the other side of the ring portion by a predetermined second projection height and is aligned with a part of the inner circumferential surface of the side portion of the outer container unit.

6. The ultrasonic cleaner according to claim 5, characterized in that the second protrusion on the substrate holder side includes at least one second protrusion unit on the first type substrate holder side that forms a ring structure and includes a groove for accommodating the second protrusion on the substrate holder side, and at least one second protrusion unit on the second type substrate holder side that forms an uneven structure in the vertical direction and includes a slit for accommodating the second protrusion on the substrate holder side.

7. The aforementioned container unit is The present invention further includes a ring-shaped container-cover coupling portion that is positioned by the substrate holder, The container-cover joint is, An outer container mounting portion is formed to protrude from the container-cover connecting portion body by a predetermined thickness and has an outer diameter corresponding to the outer diameter of the outer container unit, The ultrasonic cleaner according to claim 6, comprising an outer container coupling portion including a first protruding unit on the container-cover coupling portion side, which is formed at the lower part of the outer container mounting portion and is extended horizontally to have a shape corresponding to the second protruding portion housing groove on the substrate holder side of the substrate holder, and which is formed to protrude radially with a constant thickness, and a second protruding unit on the container-cover coupling portion side, which is extended vertically to have a shape corresponding to the second protruding portion housing slit on the substrate holder side of the substrate holder, and which is formed to protrude radially with a constant thickness.

8. The second projection housing groove on the substrate holder side of the substrate holder is aligned with a housing groove on the outer container unit side, which is formed as a radial recess to a predetermined depth on the inner circumferential surface of the outer container unit, and the first projection unit on the container-cover coupling side is housed in the second projection housing groove on the substrate holder side and the housing groove on the outer container unit side, thereby restricting its movement in the vertical direction. The ultrasonic cleaner according to claim 7, characterized in that the second protruding portion housing slit on the substrate holder side of the substrate holder is aligned with a housing slit on the outer container unit side which is formed as a radial recess to a predetermined depth on the inner circumferential surface of the outer container unit, and the second protruding unit on the container-cover coupling side is housed in the second protruding portion housing slit on the substrate holder side and the housing slit on the outer container unit side, thereby restricting rotation in one direction.

9. The container-cover joint is, The ultrasonic cleaner according to claim 7, further comprising a cover coupling portion including a spiral-shaped cover guide projection formed on the upper part of the outer container mounting portion and projecting radially to a predetermined thickness from the outer peripheral surface of the container-cover coupling portion body.

10. Each of the cover guide protrusions is formed to protrude at equal intervals within a range of 30° to 90° with respect to the radial center of the container-cover joint body. The cover unit includes cover protrusions formed to protrude inward from its inner circumferential surface to a predetermined thickness, and which are formed in a number and shape corresponding to the cover guide protrusions. The ultrasonic cleaner according to claim 9, characterized in that the cover unit rotates in one direction to open or close the housing space, corresponding to the angular range in which the cover guide projection is formed to protrude.

11. The ultrasonic cleaner according to claim 1, characterized in that the inner container unit has an opening in the center having a predetermined transmission radius or includes a light-transmitting portion formed of a light-transmitting material.

12. The aforementioned container unit is The facility includes a sterilization module that irradiates the object to be cleaned, which is housed in the aforementioned containment space, with light in a certain wavelength range. The aforementioned sterilization module is A first light unit that transmits first light in a first wavelength range into the interior of the inner container unit through the light-transmitting portion, A second light unit is formed on one side of the first light unit and transmits second light in a second wavelength range different from the first wavelength range into the interior of the inner container unit via the light-transmitting portion, The ultrasonic cleaner according to claim 11, further comprising a third light unit formed on one side of the first light unit, which transmits third light in a third wavelength range different from the first wavelength range and the second wavelength range into the interior of the inner container unit via the light-transmitting portion.

13. The first wavelength range is the wavelength range in the ultraviolet region, and the first light is germicidal light. The ultrasonic cleaner according to claim 12, characterized in that the second wavelength range and the third wavelength range are wavelength ranges in the visible light region.

14. The ultrasonic cleaner according to claim 13, characterized in that the second optical unit operates in conjunction with the first optical unit, and the second optical unit operates together with the operation of the first optical unit.

15. The second optical unit is arranged in pairs facing the first optical unit, The ultrasonic cleaner according to claim 12, characterized in that a pair of third optical units are arranged opposite each other with respect to the first optical unit and are formed separately from the second optical unit.

16. The ultrasonic cleaner according to claim 15, characterized in that the second optical unit and the third optical unit are arranged alternately along a unidirectional angle with respect to the first optical unit.

17. The aforementioned container unit is The system further includes a charging terminal that receives an external power supply to charge a power supply unit built inside the outer container unit, and a side unit formed on one side of the charging terminal, which includes a status indicator light that displays the status of the power supply unit. The ultrasonic cleaner according to claim 12, characterized in that the status indicator light is linked to the third light unit, and the status indicator light operates together with the operation of the third light unit.

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