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. Also, there is a user's demand 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 that the connection between components is not strong and there is a risk of separation between components, and it is difficult to maintain the 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 an object to be cleaned.

[0007] In addition, the disclosed embodiments of the present invention provide an ultrasonic cleaner with improved assemblability so that the relative positions between components can be maintained constant.

[0008] Furthermore, the disclosed embodiments of the present invention provide an ultrasonic cleaner in which a first optical unit and a second optical unit operate in conjunction, and a third optical unit and a status indicator light operate in conjunction to easily confirm the status (sterilization status, charging status).

[0009] The technical problems of the present invention are not limited to the technical problems 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 Problems

[0010] In order to solve the above problems, an ultrasonic cleaner according to the disclosed embodiments of the present invention includes a container unit that includes an accommodation space for accommodating an object to be cleaned and is open at the upper side, and a cover unit that is coupled to the upper part of the container unit to seal the accommodation space. The object to be cleaned accommodated in the container unit is sterilized by sterilization light and cleaned by ultrasonic vibration.

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

[0012] In addition, the container unit includes an ultrasonic vibration module for vibrating a medium filled in the accommodation space to ultrasonically clean the surface of the object to be cleaned. The ultrasonic vibration module may include a vibration plate at least a part of which is accommodated in the medium to directly vibrate the medium, a first substrate that controls the vibration plate and supplies power to the vibration plate, and a substrate holder for positioning the first substrate at a fixed position in the container unit.

[0013] Further, the substrate holder may include a ring portion formed in a ring shape so as to correspond to the inner peripheral surface of the side surface portion of the outer container unit among the container units, and a first protruding portion on the substrate holder side that protrudes downward from one side of the ring portion by a predetermined first protruding height and is accommodated in a part of the upper surface of the bottom of the outer container unit among the container units.

[0014] Further, the first protruding portion on the substrate holder side includes a plurality of first protruding units on the substrate holder side, and 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 center in the radial direction of the substrate holder.

[0015] Further, 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.

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

[0017] Further, the second protruding portion on the substrate holder side forms an annular structure and includes at least one first type second protruding unit on the substrate holder side that includes a second protruding portion accommodation groove on the substrate holder side, and at least one second type second protruding unit on the substrate holder side that forms an uneven structure in the vertical direction and includes a second protruding portion accommodation slit on the substrate holder side.

[0018] Further, the container unit may further include a ring-shaped container-cover coupling portion positioned in place by the substrate holder. The container-cover coupling portion includes an outer container placement portion that protrudes from the container-cover coupling portion main 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 placement portion, extends horizontally so as to have a shape corresponding to a second protruding portion accommodation groove on the substrate holder side of the substrate holder, and protrudes with a constant thickness in the radial direction; and a second protruding unit on the container-cover coupling portion side that extends vertically so as to have a shape corresponding to a second protruding portion accommodation slit on the substrate holder side of the substrate holder, and protrudes with a constant thickness in the radial direction. The container-cover coupling portion may include an outer container coupling portion including these components.

[0019] Further, the second protruding portion accommodation groove on the substrate holder side of the substrate holder is aligned with an accommodation groove on the outer container unit side that is recessed by a predetermined depth in the radial direction on the inner peripheral surface of the outer container unit. The first protruding unit on the container-cover coupling portion side is accommodated in the second protruding portion accommodation groove on the substrate holder side and the accommodation groove on the outer container unit side, and its vertical movement is restricted. The second protruding portion accommodation slit on the substrate holder side of the substrate holder is aligned with an accommodation slit on the outer container unit side that is recessed by a predetermined depth in the radial direction on the inner peripheral surface of the outer container unit. The second protruding unit on the container-cover coupling portion side is accommodated in the second protruding portion accommodation slit on the substrate holder side and the accommodation slit on the outer container unit side, and its rotation in one direction is restricted.

[0020] Further, the container-cover coupling portion may further include a cover coupling portion formed at the upper part of the outer container placement portion and including a spiral cover guide protrusion that protrudes from the outer peripheral surface of the container-cover coupling portion main body by a predetermined thickness in the radial direction.

[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 main 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 corresponding cover guide protrusions. The cover unit can rotate in one direction to open or close the accommodation space corresponding to the angular range in which the cover guide protrusions are formed.

[0022] In addition, the inner container unit can include an opening having a predetermined transmission radius at the center part, or a light transmission part formed of a light transmissive material.

[0023] In addition, the container unit includes a sterilization module that irradiates light in a certain wavelength range to 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 to the inside of the inner container unit through the light transmission part, a second light unit formed on one side of the first light unit that transmits second light in a second wavelength range different from the first wavelength range to the inside of the inner container unit through the light transmission part, and a third light unit formed on one side of the first light unit that transmits third light in a third wavelength range different from the first wavelength range and the second wavelength range to the inside of 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 arranged to face each other with the first optical unit as the center, a pair of the third optical units are arranged to face each other with the first optical unit as the center, and the second optical units are spaced apart from each other.

[0027] Further, the second optical unit and the third optical unit 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 and charges 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 with 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 that can be carried without visiting the place where the ultrasonic cleaning device is provided through 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] In addition, in the ultrasonic cleaner according to the disclosed embodiment of the present invention, since the first protruding unit on the container-cover coupling part side and the second protruding unit on the container-cover coupling part side formed at the container-cover coupling part are accommodated in the outer container unit and the substrate holder and their vertical movement and one-way rotation are restricted, there is an advantage that the components can be positioned at a fixed position in an aligned state.

[0033] In addition, in the ultrasonic cleaner according to the disclosed embodiment of the present invention, since the cover guide protrusions are formed to protrude at equal intervals within a certain angular range, and the accommodation space is opened or closed by the rotation of the cover unit so as to correspond to the angular range, there is an advantage that the cover unit can be rotated within 90° to easily open or close the accommodation space.

[0034] Furthermore, in the ultrasonic cleaner according to the disclosed embodiment of the present invention, there is an advantage that the operating state of the ultrasonic cleaner can be easily shown to the user by expressing the presence or absence of the operation of the first light unit through the second light unit interlocked with the first light unit that irradiates germicidal light.

[0035] In addition, in the ultrasonic cleaner according to the disclosed embodiment of the present invention, there is an advantage that the power supply state of the ultrasonic cleaner can be easily shown to the user by expressing the charging state of the power supply unit both on the upper part and the side part through the status indicator lamp interlocked with the third light unit.

Brief Description of the Drawings

[0036]

Figure 1

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Figure 9

Mode for Carrying Out the Invention

[0037] The advantages, features, and the method for achieving them of the present invention will become clear by referring to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be realized in various different forms. Merely, these embodiments are provided to make the disclosure of the present invention complete and to fully inform those with ordinary knowledge in the technical field to which the present invention pertains of the scope of the invention. The present invention is defined only by the scope of the claims.

[0038] For example, although first, second, etc. are used to describe various components, it is of course understood that these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it is of course understood that the first component mentioned below may be the second component within the technical idea of the present invention.

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

[0040] Each feature of various embodiments of the present invention can be partially or wholly combined or combined with each other, and various technical linkages and drives are possible as can be fully understood by those skilled in the art. Each embodiment may be implemented independently of each other or implemented together in a correlative relationship.

[0041] On the other hand, the tentative effects that can be expected from the technical features of the present invention not specifically mentioned in the specification of the present invention are handled as described in this specification. This embodiment is provided to more fully explain the present invention to those with average knowledge in the industry. However, the content shown in the drawings may be exaggerated compared to the actual implementation mode of the invention, and the detailed description of the configuration that is determined to be able to unnecessarily obscure the gist of the present invention is omitted or described briefly.

[0042] Hereinafter, with reference to the accompanying drawings, the disclosed embodiments of the present invention will be described in detail.

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

[0044] Referring to FIGS. 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 a structure in which the container unit 100 and the cover unit 300 can be separated or coupled to each other.

[0045] As an example, the container unit 100 includes an accommodation 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 at the upper side. The object to be cleaned can include dental supplies such as dental prostheses and dental orthodontics worn by the user inside the oral cavity. The ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is manufactured to a size capable of accommodating the object to be cleaned, whereby the ultrasonic cleaner 1 is manufactured in a portable size and miniaturized.

[0046] The cover unit 300 is coupled and formed on the upper part of the container unit 100 to seal the above-described accommodation space. The cover unit 300 is formed in a dome shape, but is not necessarily limited to the described example. The structure of the cover unit 300 can have a shape that can safely protect the object to be cleaned accommodated in the accommodation space while sealing the accommodation space of the container unit 100 from the outside.

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

[0048] In the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, the object to be cleaned accommodated in the container unit 100 can be sterilized by sterilization light. As an example, the sterilization light may be UV-A light or UV-C light having a relatively small wavelength range. With the object to be cleaned accommodated in the accommodation space of the container unit 100, the sterilization light is irradiated inside the container unit 100, and the object to be cleaned can be sterilized by the sterilization light transmitted through a light transmission medium (for example, air, liquid, etc.) and maintain a hygienic state.

[0049] In the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, an object to be cleaned accommodated in the container unit 100 can be cleaned by ultrasonic vibration. For example, with the object to be cleaned accommodated in the accommodation space of the container unit 100, the vibration plate that generates ultrasonic waves can vibrate, and the object to be cleaned can be cleaned by the vibration energy transmitted through a vibration transmission medium (for example, a liquid or the like) and maintain a hygienic state. More specifically, cavitation occurs in the vibration transmission medium that has received the vibration energy, generating bubbles, and the physical force generated when the generated bubbles start acts on the surface of the object to be cleaned, and the object to be cleaned can be cleaned and maintain a hygienic state.

[0050] On the other hand, although the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is 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 by sterilizing light.

[0051] Hereinafter, the detailed configuration of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention will be described in more detail.

[0052] Referring to FIGS. 1 to 4(b) (in particular, referring to FIG. 2), the container unit 100, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, can include various 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 surface portion 150 that forms the outer peripheral surface of the container unit 100 and a bottom portion 120 that forms a bottom surface at one end of the side surface portion 150.

[0053] The bottom 120 can form a bottom surface for the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention to be placed on the ground. The bottom 120 can have a shape corresponding to the outer peripheral surface of the container unit 100. As an example, when the container unit 100 has a cylindrical structure with an open top, the bottom surface of the bottom 120 is formed to have a disc structure. Further, the bottom surface of the bottom 120 can include a buffer unit 110 that has a certain thickness in the vertical direction (e.g., the direction of gravity) along its outer peripheral surface, and the bottom 120 is formed to protrude downward from the bottom surface. The buffer unit 110 is formed of a highly elastic and highly frictional material such as a rubber material or a urethane material. At this time, "high elasticity" means that the elastic modulus is relatively large compared to other materials, and "high friction" can mean that the friction coefficient (e.g., the static friction coefficient) is relatively large compared to other materials. Therefore, when the bottom 120 is placed on the ground to support the ultrasonic cleaner 1 including the container unit 100, the upper surface of the buffer unit 110 adheres to a part of the bottom surface of the bottom 120 while the lower surface of the buffer unit 110 contacts the ground, and the impact applied to the container unit 100 can be alleviated, and there is an advantage of preventing it from moving from the ground on which it is placed by an external force.

[0054] The side surface portion 150 can form the outer peripheral surface of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention and can form a contour for protecting the object to be cleaned. The side surface portion 150 can have a shape that communicates in the vertical direction. Further, at least one opening is formed in at least a part of the outer peripheral surface of the side surface portion 150. More specifically, the side surface portion 150 can 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 on and off the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is disposed at the first opening of the side surface portion 150, and a side unit 240 for supplying an external power source to the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is disposed at the second opening of the side surface portion 150.

[0055] In addition, the side surfaces 150 of the outer container units 120 and 150 of the container unit 100 can include an accommodation groove 151 on the outer container unit side, a protruding rib 152 on the outer container unit side, and an accommodation slit 153 on the outer container unit side on the inner peripheral surface. The accommodation groove 151 on the outer container unit side and the protruding rib 152 on the outer container unit side align and couple the outer container units 120 and 150 with a substrate holder 170 and a container-cover coupling part 220, which will be described later. The coupling of the outer container units 120 and 150 with the substrate holder 170 and the container-cover coupling part 220 will be described later.

[0056] In addition, at least one seal unit 125 is formed between the bottom 120 and the side surface 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 120 and the inner peripheral surface of the side surface 150 and is formed of a waterproof material. By forming the at least one seal unit 125 so as to seal between the bottom 120 and the side surface 150, there is an advantage that waterproofing of components (for example, a power supply unit, a first substrate, a second substrate, etc.) disposed inside the outer container units 120 and 150 can be achieved.

[0057] The ultrasonic cleaner 1 according to the disclosed embodiment of the present invention can include a power supply unit 130 so that the user can carry it and it can operate even in a situation where no other external power supply is provided. The power supply unit 130 can supply the power required for components necessary for the sterilization and / or cleaning operation of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention and for confirming the sterilization operation state and / or the power supply state.

[0058] The power supply unit 130 may be a DC power supply device that has a certain potential difference and can supply uniform power to the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention. As an 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 and a dry battery, but is not necessarily limited to the listed examples. The power supply unit 130 is placed above the bottom 120 among the aforementioned outer container units 120 and 150. The bottom 120 can play a role of stably protecting the outer surface of the power supply unit 130 from the external environment (for example, physical impact, chemical influence). As an example, the upper part of the bottom 120 is formed in a rib structure for supporting at least a part of the outer peripheral surface of the power supply unit 130.

[0059] Also, the ultrasonic cleaner 1 according to the disclosed embodiments 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 120.

[0060] In the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, the container unit may include an inner container unit 210. The inner container unit 210 can form a storage space that can substantially store the object to be cleaned therein. The inner container unit 210 can have an upwardly open shape and can generally have a shape corresponding to the aforementioned outer container units 120 and 150. As an example, when the outer container units 120 and 150 have an upwardly open cylindrical shape, the inner container unit 210 can also have an upwardly open cylindrical shape. The inner container unit 210 is arranged to be accommodated inside the outer container units 120 and 150. Since the inner container unit 210 is stably accommodated in the outer container units 120 and 150, the outer diameter of the inner container unit 210 is formed smaller than the inner diameter of the outer container units 120 and 150, and the height of the inner container unit 210 is formed smaller than the height of the side surface part 150 among the outer container units 120 and 150.

[0061] In addition, the inner container unit 210 is formed of a material for hygienically storing the object to be cleaned. More specifically, the outer container units 120, 150 and the inner container unit 210 are formed of different materials. As an 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 a mixture thereof, and the material of the inner container unit 210 may be a stainless steel material with strong corrosion resistance and stain resistance and applicable for ultrasonic cleaning. Accordingly, the outer container units 120, 150 are formed of lightweight materials, so that the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention can be lightened and the portability of the user can be improved, and the inner container unit 210 can hygienically store and manage the object to be cleaned.

[0062] Hereinafter, ultrasonic vibration modules 160, 170, 180, which are a configuration of the container unit 100, will be described.

[0063] As shown in FIGS. 1 to 4 (particularly, FIG. 2), the container unit 100 of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention may include ultrasonic vibration modules 160, 170, 180. The ultrasonic vibration modules 160, 170, 180 can provide ultrasonic vibration to the object to be cleaned accommodated in the inner container unit 210. More specifically, the ultrasonic vibration modules 160, 170, 180 can vibrate the medium filled in the accommodation space (the space formed inside the inner container unit) to ultrasonically clean the surface of the object to be cleaned.

[0064] The ultrasonic vibration modules 160, 170, 180 can include a vibration plate 180, a first substrate 160, and a substrate holder 170. As an example, the first substrate 160 is disposed below the ultrasonic vibration modules 160, 170, 180, controls the vibration plate 180, and can supply power for the vibration plate 180 to supply ultrasonic vibration to the medium to the vibration plate 180. The substrate holder 170 can serve to fix the first substrate 160 so that the first substrate 160 can be positioned in place inside the container unit 100. The vibration plate 180 can be attached and / or in contact with the outside of the inner container unit 210 (more specifically, the outside of the lower surface of the inner container unit 210). The vibration plate 180 of the ultrasonic vibration modules 160, 170, 180 transmits vibration energy to the inner container unit 210, vibrates the medium contained inside the inner container unit 210, and applies a physical force generated by the bubbles generated by cavitation bursting on the surface of the object to be cleaned, so that foreign matter adhering to the surface of the object to be cleaned can be removed from the object to be cleaned by the vibration energy.

[0065] Also, the substrate holder 170 for positioning the first substrate 160 in the container unit 100 can include a ring portion 171. The ring portion 171 is formed in a ring shape so as to correspond to the inner peripheral surface of the side surface portion 150 of the outer container units 120, 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 surface portion 150 of the outer container units 120, 150. The outer peripheral surface of the ring portion 171 can be supported by a part of the inner peripheral surface of the side surface portion 150.

[0066] Further, the substrate holder 170 can include a first protruding portion 172 on the substrate holder side. As an example, the first protruding portion 172 on the substrate holder side protrudes downward from one side of the ring portion 171 by a predetermined first protruding height. The first protruding portion 172 on the substrate holder side is fastened and coupled to the outer container units 120 and 150 of the container unit 100. That is, each of the bottom portion 120 and the side surface portion 150 of the outer container units 120 and 150 can include a fastening hole (not shown) for coupling to the first protruding portion 172 on the substrate holder side. At least a part of the first protruding portion 172 on the substrate holder side is fastened and coupled to the bottom portion 120 and the side surface portion 150 via a fastening member (for example, including at least one of a bolt and a rivet), whereby the first substrate 160 can be positioned in place inside the container unit 100.

[0067] More specifically, the first protruding portion 172 on the substrate holder side can include a plurality of first protruding units 172a on the substrate holder side. Each of the plurality of first protruding units 172a on the substrate holder side is formed in a pin shape for coupling to the outer container units 120 and 150 described above. Further, each of the plurality of first protruding units 172a on the substrate holder side is formed at a constant first angular interval with respect to the center in the radial direction of the substrate holder 170. As an example, when three first protruding units 172a on the substrate holder side are provided, the plurality of first protruding units 172a on the substrate holder side are spaced apart from each other at intervals of 120°. In this way, by forming the plurality of first protruding units 172a on the substrate holder side at a constant first angular interval, there is an advantage that the substrate holder 170 is prevented from tilting to one side and the first substrate 160 and the like can be stably supported.

[0068] On the one hand, the first substrate 160 can include a first substrate body 161 and a substrate holder accommodating portion 162 on the first substrate side that is partially recessed inwardly in a part of the outer peripheral surface of the first substrate body 161. A plurality of first protruding units 172a on the substrate holder side of the first protruding portion 172 on the substrate holder side can penetrate the substrate holder accommodating portion 162 on the first substrate side from the upper part to the lower part. At this time, the width of each of the plurality of 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 plurality of 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 recessed peripheral width of the substrate holder accommodating portion 162 on the first substrate side can correspond to any one of the plurality of first protruding units 172a on the substrate holder side. More specifically, the plurality of first protruding units 172a on the substrate holder side can have a first tapered width w1 on the ring portion 171 side, and the width can decrease to a second tapered width w2 while being extended downward. At this time, the recessed peripheral width of the substrate holder accommodating portion 162 on the first substrate side is formed to be equal to or less than the average of the first tapered width w1 and the second tapered width w2. Thereby, the first substrate 160 can be positioned in place within the container unit 100 by the substrate holder 170, and there is an advantage that the stability of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention is improved.

[0070] Further, the substrate holder 170 can 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. As an example, the second protrusions 173 and 175 on the substrate holder side are formed to protrude upward from the side facing the side where the 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 peripheral surface of the side surface portion 150 of the outer container units 120 and 150 in the container unit 100. Thereby, the substrate holder 170 can firmly couple 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 can 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 forms an annular structure and can include a second protrusion accommodating groove on the substrate holder side. Further, the second protrusion unit 175 on the second type substrate holder side can form an uneven structure in the vertical direction. As an example, the second protrusion unit 175 on the second type substrate holder side can include a pair of guide protrusions 175a, and can include a second protrusion accommodating slit 175b between the pair of guide protrusions 175a. Thereby, the container-cover coupling portion 220 described later can be easily and firmly coupled.

[0072] Hereinafter, the container-cover coupling portion 220 for coupling the cover unit 300 and the container unit 100 will be described.

[0073] The container unit 100, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, can further include a container-cover coupling part 220. The container-cover coupling part 220 can be positioned at a fixed position inside the container unit 100 by the substrate holder 170. The container-cover coupling part 220 is formed in a ring shape, and a part of the container-cover coupling part 220 is placed on the upper part of the side surface part 150 of the outer container units 120 and 150.

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

[0075] Also, the container-cover coupling part 220 can include an outer container coupling part 222. The outer container coupling part 222 can form the lower part of the container-cover coupling part main body and can be formed below the outer container placement part 221 with the outer container placement part 221 as a reference. The outer peripheral surface of the outer container coupling part 222 can be protected from the outside by the side surface part 150 among the outer container units 120 and 150.

[0076] On the other hand, the outer container coupling part 222 can include a configuration for being coupled to the side surface part 150 among the outer container units 120 and 150 and the substrate holder 170.

[0077] As an example, the outer container coupling portion 222 can 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 formed to extend horizontally so as to have a shape corresponding to the second protruding portion receiving groove on the substrate holder side in the substrate holder 170, and is formed to protrude with a constant thickness in the radial direction. More specifically, the first protruding unit 223 on the container-cover coupling portion side is received and coupled to a part of the second protruding unit 173 on the first type substrate holder side among the second protruding portions 173 and 175 on the substrate holder side of the aforementioned substrate holder 170. 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 can include a rib receiving unit 224 on the container-cover coupling portion side. The rib receiving unit 224 on the container-cover coupling portion side is formed to have an opening in the vertical direction so as to have a shape corresponding to the protruding rib 152 on the outer container unit side which is a configuration of the side surface portion 150 among the outer container units 120 and 150. The rib receiving unit 224 on the container-cover coupling portion side can receive 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 can 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 formed to extend vertically so as to have a shape corresponding to the second protruding portion receiving slit 175b on the substrate holder side in the substrate holder 170, and is formed to protrude with a constant thickness in the radial direction. More specifically, the second protruding unit 225 on the container-cover coupling portion side is guided by a pair of guide protruding portions 175a of the second protruding unit 175 on the second type substrate holder side among the second protruding portions 173 and 175 on the substrate holder side of the aforementioned substrate holder 170, and is received and coupled to the second protruding portion receiving 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] Hereinafter, the connection relationships among the substrate holder 170, the container-cover connection part 220, and the outer container units 120 and 150 will be described.

[0081] In the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, among the outer container units 120 and 150, the side surface part 150 can further include an outer container unit side accommodation groove 151 on its inner peripheral surface. As an example, the outer container unit side accommodation groove 151 is formed by being recessed radially with a predetermined depth on the inner peripheral surface of the side surface part 150 among the outer container units 120 and 150. The shape of the outer container unit side accommodation groove 151 can correspond to the first protruding unit 223 on the container-cover connection part side of the container-cover connection part 220.

[0082] More specifically, the second protruding part accommodation groove on the substrate holder side of the second protruding unit 173 on the first type substrate holder side of the substrate holder 170 is aligned with the outer container unit side accommodation groove 151, and the first protruding unit 223 on the container-cover connection part side is accommodated in both the second protruding part accommodation groove on the substrate holder side and the outer container unit side accommodation groove 151, and its vertical movement is restricted. More specifically, the first protruding units 223 on the container-cover connection part side are arranged in two rows, and at least one of the first protruding units 223 on the container-cover connection part side is accommodated in the second protruding part accommodation groove on the substrate holder side of the substrate holder 170, and the remaining one of the first protruding units 223 on the container-cover connection part side is accommodated in the outer container unit side accommodation groove 151, and its vertical movement is restricted. Thereby, the container-cover connection part 220 maintains a form of being connected to the substrate holder 170 and the outer container units 120 and 150, so that a stable assembly structure can be formed.

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

[0084] More specifically, the rib accommodating unit 174 on the substrate holder side of the substrate holder 170 is aligned with the outer container unit side protruding rib 152 that protrudes inward a predetermined thickness on the inner peripheral surface of the side surface portion 150 of the outer container units 120 and 150. The outer container unit side protruding rib 152 is accommodated in the rib accommodating unit 174 on the substrate holder side and the rib accommodating unit 224 on the container-cover coupling portion side, and the rotation in one direction is restricted. Thereby, the container-cover coupling portion 220 can maintain the state of being coupled to the substrate holder 170 and the outer container units 120 and 150, so that a stable assembly structure can be formed.

[0085] Also, in the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, among the outer container units 120 and 150, the side surface portion 150 can further include an outer container unit side accommodating slit 153 on its inner peripheral surface. As an example, the outer container unit side accommodating slit 153 is formed to be recessed a predetermined depth in the radial direction on the inner peripheral surface of the side surface portion 150 among the outer container units 120 and 150. The shape of the outer container unit side accommodating slit 153 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 protruding portion receiving slit 175b on the substrate holder side of the second protruding unit 175 on the second type substrate holder side of the substrate holder 170 is aligned with the receiving slit 153 on the outer container unit side that is recessed in the inner peripheral surface of the side surface portion 150 of the outer container units 120 and 150 in the radial direction by a predetermined depth. The second protruding unit 225 on the container-cover coupling portion side is received in the second protruding portion receiving slit 175b on the substrate holder side and the receiving slit 153 on the outer container unit side, and its rotation in one direction is restricted. As a result, the container-cover coupling portion 220 maintains a form in which it is coupled to the substrate holder 170 and the outer container units 120 and 150, so that a stable assembly structure can be formed.

[0087] As described above, since the mutual movement of the outer container units 120 and 150, the substrate holder 170, and the container-cover coupling portion 220 is structurally restricted, the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention has an advantage in that it can form a strong assembly structure.

[0088] Hereinafter, the detailed configuration of the cover unit 300 and the coupling relationship between the container-cover coupling portion 220 and the cover unit 300 will be described.

[0089] FIG. 5 is a diagram showing the shape of the cover unit 300, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, turned over. FIG. 6 is a perspective view for explaining the container unit 100, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention. FIG. 7 is a front view for explaining the container unit 100, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention. FIG. 8 is a perspective view for explaining the process in which the container unit 100 and the cover unit 300 of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention are coupled.

[0090] Referring to FIGS. 1 to 8 as a whole, in the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention, the container-cover coupling portion 220 can further include a cover coupling portion 226. The cover coupling portion 226 can form the upper part of the container-cover coupling portion body and is formed above the outer container placement portion 221 with reference to the outer container placement portion 221. The cover coupling portion 226 can include a spiral cover guide protrusion 227 that protrudes radially by a predetermined thickness from the outer peripheral surface of the container-cover coupling portion body for coupling with a cover unit 300 described later. Due to the spiral shape of the cover guide protrusion 227, the cover unit 300 rotates relatively on the outer peripheral surface of the container-cover coupling portion 220 and is coupled to the container unit 100, so that the object to be cleaned and / or the medium for ultrasonic vibration accommodated in the inner container unit 210 do not escape to the outside.

[0091] More specifically, each of the cover guide protrusions 227 is formed to protrude at equal intervals within a range of 30° to 90° with reference to the radial center of the container-cover coupling portion body. As an example, the cover coupling portion 226 can include four spiral cover guide protrusions 227 having a predetermined spiral angle (θ), and each cover guide protrusion 227 is formed to have a protrusion angle (Φ) of 90°. As another example, the cover coupling portion 226 can include six spiral cover guide protrusions 227 having a predetermined spiral angle (θ), and each cover guide protrusion 227 is formed to have a protrusion angle (Φ) of 60°.

[0092] On the one hand, the cover unit 300 coupled to the container unit 100 can include a cover unit main body 310. The cover unit main body 310 can cover the outer peripheral surface of the container-cover coupling part 220, thereby protecting an object to be cleaned or the like accommodated inside the container unit 100 from the external environment. The cover unit main body 310 can include a cover unit side part 311, a cover unit upper part 312, and a cover unit opening 313. The cover unit side part 311 can form the side surface of the cover unit main body 310, and the cover unit upper part 312 is formed by extending from the cover unit side part 311 and can form the upper surface of the cover unit main body 310. Further, the cover unit opening 313 is formed in at least a part of the cover unit upper part 312, and a cover unit lens part 320 through which the state of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention can be confirmed by the operation of the second substrate 190 in which the sterilization modules 201, 202, 203 are incorporated is arranged.

[0093] In addition, the cover unit 300 can include a cover unit main body-lens coupling part 330, and the cover unit main body-lens coupling part 330 can include a cover unit main body-lens coupling groove 331 in its upper part. Through the cover unit main body-lens coupling groove 331, a form in which the cover unit main body 310 and the cover unit lens part 320 are stably coupled can be maintained.

[0094] In addition, the cover unit 300 can include a seal cap 340. The seal cap 340 can prevent the contents (for example, a medium for ultrasonically cleaning an object to be cleaned) accommodated inside the container unit 100 from escaping to the outside 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 part 220 in a state where the cover unit 300 is coupled to the container unit 100 and can seal the space between the container-cover coupling part 220 and the cover unit 300. The seal cap 340 is formed of at least one of highly elastic materials such as a rubber material and a urethane material.

[0095] Further, among the cover unit 300, the cover unit main body 310 can include cover protrusions 314 on its inner peripheral surface. The cover protrusions 314 are formed to protrude inward from the inner peripheral surface of the cover unit (more specifically, the cover unit main body 310) by a predetermined thickness, and are formed in the same number and shape as the above-described cover guide protrusions 227. As an example, when the cover coupling portion 226 includes four cover guide protrusions 227 having a spiral shape, four cover protrusions 314 are also formed in a spiral shape.

[0096] The cover unit 300 can open or seal the accommodation space by rotating in one direction so as to correspond to the angular range (for example, the protruding angle) in which the cover guide protrusions 227 are formed to protrude. At this time, depending on the number and protruding angle (Φ) of the cover guide protrusions 227, the accommodation space can be easily opened or sealed even when the cover unit 300 is rotated by 90° or less. Accordingly, the user of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention can open and close the accommodation space by rotating the cover unit 300 only at a small angle with respect to the container unit 100, which has the advantage of improving the usability of the ultrasonic cleaner 1.

[0097] Hereinafter, the operation for sterilizing the object to be cleaned by the sterilization module provided inside the second substrate 190 and notifying the user of the state of the ultrasonic cleaner 1 will be described.

[0098] FIG. 9 is a diagram for explaining a sterilization module provided inside a second substrate 190, which is a configuration of a container unit 100 of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0099] Referring generally to FIGS. 1 - 9 (particularly FIGS. 2 and 9), the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention can include a sterilization module. The sterilization module can irradiate an object to be cleaned accommodated in the accommodation space with light in a certain wavelength range. At this time, the light can include sterilization light (e.g., UV - C light) for removing bacteria on the surface of the object to be cleaned. On the other hand, the sterilization module can receive power for generating light by a second substrate 190 disposed below it. The sterilization light generated by the sterilization module can be diffused into the internal space of the inner container unit 210 through the sterilization module lens 200, and can sterilize the object to be cleaned stored in the inner container unit 210.

[0100] To transmit the light generated from the sterilization module 200 into the inner container unit 210, the inner container unit 210 can include an opening formed at its center with a predetermined transmission radius or a light transmission part 211 formed of a light - transmissive material. As an example, when the light transmission part 211 is formed as an opening, at least a part of the sterilization module protrudes partially from the lower part of the inner container unit 210, and a sealing process is performed between the protruding part of the sterilization module and the inner container unit 210. As another example, when the light transmission part 211 is formed as a light - transmissive lens, the light transmission part 211 is formed of a transparent or translucent material and can guide the light generated by the sterilization module 200 into the inner container unit 210.

[0101] More specifically, the sterilization module can 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 to the inside of the inner container unit 210 through the light transmission part 211. Further, 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 to the inside of the inner container unit 210 through the light transmission part 211. Further, the third light unit 203 is formed on one side of the first light unit 201 and can transmit third light in a third wavelength range different from the first wavelength range and the second wavelength range to the inside of the inner container unit 210 through the light transmission part 211.

[0102] As an example, the first light generated by the first light unit 201 sterilizes the object to be cleaned, and the second light generated by the second light unit 202 serves to inform the user of the progress of sterilization by the first light of the first unit 201. The third light generated by the third light unit 203 can serve to inform the user of the operating state of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention. That is, the first wavelength range of the first light generated by the first light unit 201 is a wavelength range in the ultraviolet region, and the first light may be sterilization light. However, since the first light in the ultraviolet region cannot be identified by the user's naked eyes, it is necessary to visually inform the user of the progress of sterilization by the first light of the first light unit 201 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 wavelength ranges in the visible light region.

[0103] In particular, the second light unit 202 can be interlocked with the first light unit 201 in order to guide the user as to whether the sterilization of the object to be cleaned by the first light unit 201 is in progress. Therefore, the second light unit 202 can operate together with the operation of the first light unit 201. As an example, if the sterilizing light is irradiated inside the inner container unit 210 by the first light unit 201, the second light unit 202 also operates so that the second light is irradiated inside the inner container unit 210, and the user can easily recognize whether the sterilization of the object to be cleaned is in progress through the cover unit lens part 320 described above. 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 through the cover unit lens part 320, there is an advantage of preventing the risk of accidents to the user.

[0104] On the other hand, a pair of the second light units 202, 202a, 202b are disposed opposite to each other with the first light unit 201 as the center, and a pair of the third light units 203, 203a, 203b are disposed opposite to each other with the first light unit 201 as the center while being spaced apart from the second light units 202, 202a, 202b. More specifically, the second light units 202, 202a, 202b and the third light units 203, 203a, 203b are alternately arranged along an angular direction with the first light unit 201 as the center. Thereby, the second light and the third light generated from the second light units 202, 202a, 202b and the third light units 203, 203a, 203b do not deflect to one side, and the user can easily recognize them through the cover unit lens part 320.

[0105] The third light unit 203 can operate to guide the user as to a state different from that of the second light unit 202. As an example, the third light unit 203 can display the state of the power supply unit 130 described above, and can perform a dimming operation when the power supply unit 130 is charging, and can perform an on operation when the power supply unit 130 is fully charged. Thereby, the user has an advantage of easily recognizing the charging state of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0106] Hereinafter, the side unit 240, which is a configuration of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention, will be described.

[0107] Referring generally to FIGS. 1 to 9 (particularly FIGS. 2 and 4), the container unit 100 of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention can further include a side unit 240. The side unit 240 includes a charging terminal 241 that receives an external power source and charges the power supply unit 130 built inside the outer container units 120 and 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 perform a dimming operation when the power supply unit 130 is charging, and can perform an on operation when the power supply unit 130 is fully charged. Accordingly, the user has the advantage of being able to easily recognize the charging status of the ultrasonic cleaner 1 according to the disclosed embodiment of the present invention.

[0108] On the other hand, a side unit cover 250 made of a rubber material including a side unit cover main body 251, a side unit cover handle part 252, and a charging terminal protection part 253 for protecting the charging terminal 241 is coupled to a side unit cover coupling part 243 of the side unit 240. At this time, the user can turn over the side unit cover 250 to open the side unit 240, and then connect a charging wire to the charging terminal 241 to charge the power supply unit 130 of the ultrasonic cleaner 1. Therefore, the user can easily check the status indicator light 242 formed on one side of the charging terminal 241 and can easily recognize the charging status of the power supply unit 130.

[0109] In addition, the status indicator lamp 242 can operate in conjunction with the third light unit 203, and the status indicator lamp 242 can operate together by the operation of the third light unit 203. When the third light unit 203 and the status indicator lamp 242 operate together, there is an advantage that the user can easily check the charging state of the power supply unit 130 no matter which position on the side or top surface of the ultrasonic cleaner 1 the ultrasonic cleaner 1 is viewed from. The operation of the status indicator lamp 242 can correspond to the operation of the third light unit 203 described above.

[0110] In some embodiments, the status indicator lamp 242 may represent not only the charging state of the power supply unit 130, but also the cleaning operation and / or the sterilization operation of the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention. The status indicator lamp 242 can operate in conjunction with at least one of the first light unit 201, the second light unit 202, and the third light unit 203, and the status indicator lamp 242 can operate together by these operations. As an example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention performs a cleaning operation, the status indicator lamp 242 can operate so that a blue lamp lights up. As another example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention performs a sterilization operation, the status indicator lamp 242 can operate so that a purple lamp lights up. As yet another example, when the ultrasonic cleaner 1 according to the disclosed embodiments of the present invention is charged, the status indicator lamp 242 can operate to light up in another color, or the blue lamp or the purple lamp can blink. In this way, the present invention has the advantage that the user can easily check the overall state of the ultrasonic cleaner 1 from the side through the status indicator lamp 242.

[0111] In addition, the side unit 240 can further include a status indicator lamp protection lens 244. The status indicator lamp protection lens 244 is adhesively formed on the inner surface of the side portion 150 of the outer container units 120 and 150 described above. The status indicator lamp protection lens 244 covers the status indicator lamp 242 and is formed of a transparent or translucent material. The status indicator lamp protection lens 244 can transmit the light generated by the status indicator lamp 242 to the outside, and can play a role in protecting the status indicator lamp 240 from external environments such as external impacts and contamination.

[0112] The preferred embodiments of the present invention have been described above. However, the present invention is not limited thereto, and it can be variously modified and implemented within the scope of the claims, the detailed description of the invention, and the accompanying drawings, and this also belongs to the scope of the present invention.

Description of Reference Numerals

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

Claims

1. a container unit including an accommodation space for accommodating an object to be cleaned and open upward; a cover unit formed on an upper portion of the container unit to seal the receiving space, An ultrasonic cleaner characterized in that the object to be cleaned contained in the container unit is sterilized by germicidal light and cleaned by ultrasonic vibration.

2. The container unit includes: an outer container unit including a side portion forming an outer peripheral surface and a bottom portion forming a 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 accommodated inside the outer container unit; 2. The ultrasonic cleaner according to claim 1, wherein the outer container unit and the inner container unit are formed of different materials.

3. The container unit includes: an ultrasonic vibration module for ultrasonically cleaning a surface of the object to be cleaned by vibrating a medium filled in the accommodation space, The ultrasonic cleaner of claim 1, wherein the ultrasonic vibration module includes a vibration plate at least partially contained in the medium to directly vibrate the medium, a first substrate for controlling the vibration plate and supplying power to the vibration plate, and a substrate holder for positioning the first substrate in the container unit.

4. The substrate holder includes: a ring portion formed in a ring shape so as to correspond to an inner peripheral surface of a side surface portion of an outer container unit of the container unit; 4. The ultrasonic cleaner as described in claim 3, further comprising: a first protrusion portion on the substrate holder side that protrudes downward from one side of the ring portion by a predetermined first protrusion height and is received in a portion of the bottom upper surface of the outer container unit of the container unit.

5. the substrate holder first protrusion portion includes a plurality of substrate holder first protrusion units, 5. The ultrasonic cleaner according to claim 4, wherein the first protrusion units on the substrate holder side are formed at a constant first angular interval with respect to a radial center of the substrate holder.

6. 6. The ultrasonic cleaner according to claim 5, wherein the width of each of the first protrusion units on the substrate holder side is tapered so as to gradually decrease as the first protrusion units protrude downward from the ring portion side.

7. The substrate holder includes:

5. The ultrasonic cleaner as claimed in claim 4, further comprising a second protrusion on the substrate holder side, which protrudes from the other side of the ring portion in an upward direction by a predetermined second protrusion height and is aligned with a portion of the inner peripheral surface of the side portion of the outer container unit of the container unit.

8. The ultrasonic cleaner described in claim 7, characterized in that the second protrusion on the substrate holder side includes at least one first type substrate holder side second protrusion unit that forms a ring structure and includes a substrate holder side second protrusion accommodating groove, and at least one second type substrate holder side second protrusion unit that forms a concave-convex structure in the vertical direction and includes a substrate holder side second protrusion accommodating slit.

9. The container unit includes: a ring-shaped vessel-cover coupling that is positioned by the substrate holder; The container-cover connection is an outer container mounting portion that is formed by protruding from a container-cover coupling body by a predetermined thickness and has an outer diameter corresponding to the outer diameter of the outer container unit; 10. The ultrasonic cleaner of claim 8, further comprising: an outer container coupling portion including: a first protrusion unit on the container-cover coupling portion side, which is formed at a lower portion of the outer container mounting portion and extends horizontally to have a shape corresponding to the second protrusion accommodating groove on the substrate holder side of the substrate holder, and protrudes to a constant thickness in the radial direction; and a second protrusion unit on the container-cover coupling portion side, which is formed to extend vertically to have a shape corresponding to the second protrusion accommodating slit on the substrate holder side of the substrate holder, and protrudes to a constant thickness in the radial direction.

10. The second protrusion accommodating groove of the substrate holder side of the substrate holder is aligned with an accommodating groove of the outer container unit side formed on an inner peripheral surface of the outer container unit in a radial direction to a predetermined depth, and the first protrusion unit of the container-cover coupling part side is accommodated in the second protrusion accommodating groove of the substrate holder side and the accommodating groove of the outer container unit side, thereby restricting the vertical movement of the first protrusion unit of the substrate holder side. The ultrasonic cleaner of claim 9, characterized in that the second protrusion accommodating slit on the substrate holder side of the substrate holder is aligned with an accommodating slit on the outer container unit side which is formed radially recessed to a predetermined depth on the inner surface of the outer container unit, and the second protrusion unit on the container-cover connection side is accommodated in the second protrusion accommodating slit on the substrate holder side and the accommodating slit on the outer container unit side, thereby restricting rotation in one direction.

11. The container-cover connection is 10. The ultrasonic cleaner of claim 9, further comprising a cover coupling portion including a spiral-shaped cover guide protrusion formed on an upper portion of the outer container mounting portion and protruding from an outer circumferential surface of the container-cover coupling portion body in a radial direction to a predetermined thickness.

12. The cover guide protrusions are formed to protrude at equal intervals within a range of 30° to 90° based on the radial center of the container-cover coupling body, the cover unit includes cover protrusions formed to protrude inward from an inner circumferential surface thereof to a predetermined thickness, the number and shape of which correspond to the cover guide protrusions, The ultrasonic cleaner of claim 11, wherein the cover unit rotates in one direction to correspond to an angular range in which the cover guide protrusion is protruded, to open or close the receiving space.

13. 3. The ultrasonic cleaner according to claim 2, wherein the inner container unit includes a light transmitting portion having a predetermined light transmitting radius at a center thereof and formed of a light transmitting material.

14. The container unit includes: A sterilization module that irradiates the object to be cleaned contained in the storage space with light in a certain wavelength range, The sterilization module comprises: a first light unit that transmits a first light in a first wavelength range into the inner container unit through the light transmitting portion; a second light unit formed on one side of the first light unit and configured to transmit a second light having a second wavelength range different from the first wavelength range through the light transmitting portion into the inner container unit; The ultrasonic cleaner of claim 13, further comprising: a third light unit formed on one side of the first light unit and configured to transmit a third light of a third wavelength range different from the first wavelength range and the second wavelength range through the light transmitting portion into the inside of the inner container unit.

15. The first wavelength range is a wavelength range in the ultraviolet region, and the first light is germicidal light; 15. The ultrasonic cleaner according to claim 14, wherein the second wavelength range and the third wavelength range are wavelength ranges in a visible light region.

16. The ultrasonic cleaner according to claim 15, wherein the second light unit is linked to the first light unit, and the second light unit is operated in accordance with the operation of the first light unit.

17. The second optical units are arranged in pairs facing each other with the first optical unit at the center, The ultrasonic cleaner according to claim 14, wherein the third optical units are disposed in a pair facing each other with the first optical unit at the center and spaced apart from the second optical unit.

18. The ultrasonic cleaner according to claim 17, wherein the second light unit and the third light unit are alternately arranged along an angle direction with the first light unit as a center.

19. The container unit includes: a charging terminal for receiving an external power source and charging a power supply unit built in the outer container unit; and a side unit including a status indicator formed on one side of the charging terminal for indicating a status of the power supply unit, The ultrasonic cleaner according to claim 14, wherein the status indicator light is linked to the third light unit, and the status indicator light is operated in accordance with the operation of the third light unit.

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