UV sterilizer

Abstract

The present invention provides an ultraviolet sterilizer, comprising: a housing having an internal space for accommodating items to be sterilized and a shelf supporting the items to be sterilized, the front surface of the housing being an open surface, allowing the items to be sterilized and the shelf to enter and exit the internal space, and having a door for opening and closing the front surface; a water tray, accessible through the front surface and placed at the bottom of the internal space, for receiving water dripping from the items to be sterilized; an ultraviolet irradiation unit disposed on the water tray for irradiating the items to be sterilized placed on the shelf with ultraviolet light; a wireless power receiving unit disposed on the water tray for wirelessly receiving power and supplying it to the ultraviolet irradiation unit; and a wireless power transmission unit disposed at the bottom for wirelessly transmitting power to the wireless power receiving unit.

Description

Technical Field

[0001] The present invention relates to an ultraviolet sterilizer, and more specifically, to an ultraviolet sterilizer wherein an ultraviolet irradiation unit is provided on a water receiving tray for receiving water dripping from the items to be sterilized, and the ultraviolet irradiation unit is powered wirelessly. Background Technology

[0002] Ultraviolet (UV) sterilizers are devices that use ultraviolet light to disinfect tableware, baby bottles, and other similar items (hereinafter referred to as "items to be sterilized"). It is understood that UV sterilization does not cause deformation of the products to be sterilized and does not produce endocrine disruptors, thus offering advantages over chemical sterilization and heat sterilization.

[0003] Korean Patent No. 10-1906230 (Baby Bottle Sterilizer) discloses a baby bottle sterilizer corresponding to an ultraviolet sterilizer. In this baby bottle sterilizer, an ultraviolet lamp is provided on the top of the outer shell used to hold the baby bottle, and the ultraviolet lamp irradiates ultraviolet light onto the baby bottle while rotating.

[0004] Korean Patent No. 10-2219686 (Baby Bottle Sterilizer) also discloses a baby bottle sterilizer as an ultraviolet sterilizer. In this baby bottle sterilizer, an ultraviolet light-emitting diode (LED) is provided on the top of the outer shell used to hold the baby bottle, and ultraviolet light-emitting diodes are also provided on the side wall of the outer shell. The ultraviolet light-emitting diode on the top of the outer shell rotates while the ultraviolet light-emitting diodes on the side wall of the outer shell are fixed in a state to irradiate ultraviolet light onto the baby bottle.

[0005] In the bottle sterilizers of the two patented inventions mentioned above, an ultraviolet lamp or ultraviolet light-emitting diode that irradiates ultraviolet light onto the bottles is located on the top of the outer casing or on the top and side walls of the outer casing. However, in this case, the ultraviolet light is only exposed to a portion of the bottles inside the outer casing, which may result in the remaining bottles not being sterilized.

[0006] To solve this problem, ultraviolet sterilizers disclosed in Korean Patent No. 10-2336122 (Electric Sterilizer) and Korean Patent No. 10-2019-0109938 (Electric Sterilizer) have ultraviolet lamps or ultraviolet light-emitting diodes installed at the top and bottom of the outer casing.

[0007] However, since the items to be disinfected are usually placed on shelves inside the casing immediately after being cleaned with water and then disinfected with ultraviolet light, residual water from the items on the shelves drips to the bottom of the casing, often leaving stains. Therefore, users need to clean the bottom of the casing frequently. In the aforementioned Korean Patent No. 10-2336122 (Electric Sterilizer) and Korean Patent Publication No. 10-2019-0109938 (Electric Sterilizer), the bottom of the casing cannot be removed by the user, making cleaning the bottom of the casing very inconvenient. Furthermore, since the ultraviolet irradiation unit (ultraviolet lamp or ultraviolet LED) is located on the bottom of the casing, which cannot be removed, maintenance and repair of the ultraviolet irradiation unit is also very inconvenient.

[0008] On the other hand, there is another type of ultraviolet sterilizer that uses a drip tray to collect water dripping from the items to be sterilized. Since this drip tray is simply placed at the bottom of the casing, the user can easily remove it, clean it, and place it back at the bottom. Furthermore, the drip tray is primarily made of metal (such as stainless steel) for a neat appearance and to prevent rust. However, in the aforementioned Korean Patent No. 10-2336122 (Electric Sterilizer) and Korean Patent Publication No. 10-2019-0109938 (Electric Sterilizer), if this type of drip tray is used, the ultraviolet light irradiated from the ultraviolet irradiation unit at the bottom of the casing is blocked by the drip tray and cannot reach the items to be sterilized, thus creating the problem that the drip tray cannot be used.

[0009] Existing technical documents:

[0010] Korean Patent No. 10-1906230 (Baby Bottle Sterilizer)

[0011] Korean Patent No. 10-2219686 (Baby Bottle Sterilizer)

[0012] Korean Patent No. 10-2336122 (Electric Sterilizer)

[0013] Korean Patent No. 10-2019-0109938 (Electric Sterilizer). Summary of the Invention

[0014] The purpose of this invention is to provide an ultraviolet sterilizer that easily cleans stains caused by water dripping from the items to be sterilized, while allowing the ultraviolet irradiation unit to be positioned below the items to be sterilized, thereby making the maintenance and repair of the ultraviolet irradiation unit easier.

[0015] This invention provides an ultraviolet sterilizer, comprising: a housing having an internal space for accommodating items to be sterilized and a shelf supporting the items to be sterilized, the front surface of the housing being an open surface allowing the items to be sterilized and the shelf to enter and exit the internal space, and having a door for opening and closing the front surface; a water tray, accessible through the front surface and placed at the bottom of the internal space, for receiving water dripping from the items to be sterilized; an ultraviolet irradiation unit disposed on the water tray for irradiating the items to be sterilized placed on the shelf with ultraviolet light; a wireless power receiving unit disposed on the water tray for wirelessly receiving power and supplying it to the ultraviolet irradiation unit; and a wireless power transmission unit disposed at the bottom for wirelessly transmitting power to the wireless power receiving unit.

[0016] The aforementioned water receiving tray may include: an upper plate having a mounting hole for the aforementioned ultraviolet irradiation section; and a lower plate that, together with the upper plate, surrounds the mounting space for the aforementioned wireless power receiving section. In this case, the portion covering the bottom of the aforementioned wireless power transmitting section and the aforementioned lower plate are made of plastic material to enable the transmission and reception of wireless power.

[0017] The aforementioned upper plate may include: an outer metal plate for receiving water dripping from the aforementioned items to be disinfected; and an inner plastic plate, the upper surface of which is bonded to the lower surface of the outer plastic plate, wherein the lower plate is detachably combined with the inner plastic plate.

[0018] When the lower plate is combined with the inner plate, a sealing gasket may be provided between the edge of the lower plate and the edge of the outer plate. Furthermore, the wireless power receiver may be fixed to the lower surface of the inner plate and electrically connected to the ultraviolet irradiation unit.

[0019] The aforementioned ultraviolet irradiation unit may include: a waterproof body, disposed in the aforementioned mounting hole in a waterproof manner; a light-transmitting cap, tightly embedded in and penetrating the waterproof body, made of a material that can transmit ultraviolet light, with its upper surface exposed to the aforementioned internal space; a bracket, located in the aforementioned mounting space and in contact with the lower end of the waterproof body and the lower end of the light-transmitting cap, including a support member that can be detachably combined with the aforementioned upper plate and a protruding member that protrudes above the support member and is inserted into the interior of the aforementioned light-transmitting cap; and a printed circuit board, fixed to the upper surface of the aforementioned protruding member, on which an ultraviolet light-emitting diode is mounted, and electrically connected to the aforementioned wireless power receiving unit.

[0020] An O-ring may be provided between the inner surface of the aforementioned light-transmitting cap and the outer surface of the aforementioned protruding component.

[0021] A Hall sensor is provided in the aforementioned wireless power transmission unit, and a magnet can be provided in the water receiving tray that faces the Hall sensor when the water receiving tray is placed on the bottom. In this case, the wireless power transmission unit will only transmit wireless power when the Hall sensor detects the magnetic force of the magnet.

[0022] According to the present invention, since the stains formed by water dripping from the product to be disinfected occur on the water tray that can be drawn out from the internal space of the housing, the stains can be easily removed. At the same time, the ultraviolet irradiation unit is provided on the water tray located below the product to be disinfected and operates by transmitting and receiving power wirelessly. Therefore, ultraviolet irradiation can be performed not only below the product to be disinfected, but the ultraviolet irradiation unit is also easy to maintain and repair.

[0023] Furthermore, according to the present invention, since the upper plate of the water receiving tray is in the form of an inner plastic plate bonded to an outer metal plate, and the lower plate of the water receiving tray is detachably combined with the inner plate, not only is the appearance of the outer plate neat and beautiful, but the water receiving tray is also easy to assemble and disassemble.

[0024] Furthermore, according to the present invention, since a sealing gasket is provided between the lower plate edge and the upper plate edge of the water receiving tray, the installation space located inside the water receiving tray can be waterproofed.

[0025] Furthermore, according to the present invention, since both the wireless power receiving unit and the ultraviolet irradiation unit are provided on the upper plate and connected by wires, the lower plate can be easily handled during assembly and disassembly without being constrained by the aforementioned wires.

[0026] Furthermore, according to the present invention, since the ultraviolet irradiation unit is provided in a separable manner through the mounting hole in the upper plate, it is easy to maintain and repair the ultraviolet irradiation unit. Since the ultraviolet irradiation unit includes a waterproof body, waterproofing can be achieved through the aforementioned mounting hole.

[0027] Furthermore, according to the present invention, due to the presence of the O-ring, the printed circuit board of the ultraviolet irradiation section and the ultraviolet light-emitting diode can be located in a more reliable waterproof space.

[0028] Furthermore, according to the present invention, since the wireless power transmission unit only transmits wireless power when the water tray is detected to be placed at the bottom of the housing by the Hall sensor and the magnet, accidents are effectively prevented. Attached Figure Description

[0029] The present invention will now be described in detail with reference to the accompanying drawings.

[0030] Figure 1 A perspective view of the ultraviolet sterilizer of the present invention is shown.

[0031] Figure 2 for Figure 1 The sectional view of A-A' in the diagram.

[0032] Figure 3 To illustrate the composition Figure 1 An exploded perspective view of the inner side plate of the upper plate and the lower plate of the water receiving tray shown.

[0033] Figure 4 To show Figure 1 An exploded perspective view of the ultraviolet-irradiated section is shown.

[0034] Figure 5 To show Figure 1 A cross-sectional view of the wireless power transmission unit shown.

[0035] Symbol explanation:

[0036] 100: Ultraviolet sterilizer; 110: Outer casing

[0037] 114: Interior space; 114a: Bottom

[0038] 114b: Top 112: Door

[0039] 116: Shelf 130: Drain tray

[0040] 131: Setting space 132: Outer side panel of the upper panel

[0041] 134: Inner side panel of the upper plate 136: Lower plate

[0042] 132a, 134a: Setting holes; 136a: Magnet

[0043] 138: Sealing gasket; 140: Wireless power receiver.

[0044] 150: Wireless power transmission unit; 152: Plastic cover

[0045] 156: Hall sensor; 160: Ultraviolet irradiation section

[0046] 161: Translucent cap; 162: Waterproof body

[0047] 163: Printed Circuit Board; 164: Ultraviolet Light Emitting Diode

[0048] 165: Bracket; 166: O-ring. Detailed Implementation

[0049] The preferred embodiments of the ultraviolet sterilizer of the present invention will now be described in detail with reference to the accompanying drawings. The terms or words used herein should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted in accordance with the principle that the inventors may appropriately define the concepts of terms to best illustrate their invention, and in accordance with the meaning and concept of the technical idea of ​​the present invention.

[0050] The ultraviolet sterilizer 100 of the present invention is used for ultraviolet sterilization of tableware, baby bottles and other sterilization items, and includes: a shell 110, a water receiving tray 130, an ultraviolet irradiation unit 160, a wireless power receiving unit 140 and a wireless power transmission unit 150.

[0051] The aforementioned outer casing 110 forms the overall appearance of the ultraviolet sterilizer 100, and has an internal space 114 surrounded by a bottom 114a, a top 114b, left and right side walls, and a rear wall, with the front surface being an open surface. Furthermore, the outer casing 110 also has a door 112 for opening and closing the front surface. A transparent window 112a is provided on the door 112 to allow a view of the internal space 114. Additionally, brackets (not shown) are provided on the left and right side walls of the internal space 114 to support the left and right ends of a grid-shaped shelf 116. In this outer casing 110, the items to be sterilized and the shelf 116 can be housed in the internal space 114, and the items to be sterilized and the shelf 116 can enter and exit the internal space 114 through the open front surface.

[0052] The aforementioned drip tray 130 can enter and exit the internal space 114 through the front surface of the outer casing 110. Furthermore, the drip tray 130 is housed within the internal space 114 in a manner placed at the bottom 114a to receive water dripping from the items to be disinfected. Therefore, if stains form on the drip tray 130 due to water dripping from the items to be disinfected, the user can easily remove these stains while the drip tray 130 is extended from the internal space 114.

[0053] The aforementioned ultraviolet irradiation unit 160 is installed in the water receiving tray 130 to irradiate the items to be disinfected placed on the shelf 116 with ultraviolet light. Figure 1 An example is shown where six ultraviolet irradiation units 160 are installed in a water receiving tray 130. The aforementioned wireless power receiving unit 140 is also installed in the water receiving tray 130 to receive power wirelessly and supply it to the ultraviolet irradiation units 160. Hereinafter, reference will be made to... Figures 2 to 4 This describes an exemplary structure of the water receiving tray 130, the ultraviolet irradiation unit 160, and the wireless power receiving unit 140.

[0054] like Figure 2 As shown, the water receiving tray 130 includes upper plates 132 and 134 and a lower plate 136. Moreover, the upper plates 132 and 134 include an outer plate 132 and an inner plate 134.

[0055] The outer side plate 132 of the aforementioned upper plates 132 and 134 serves as a component for receiving water dripping from the items to be disinfected, and is located at the top of the water receiving tray 130. The outer side plate 132 is made of a metal material such as stainless steel to achieve a clean appearance and prevent rusting. This outer side plate 132 has the same number of mounting holes 132a as the number of ultraviolet irradiation sections 160, and these mounting holes 132a are used to mount the ultraviolet irradiation sections 160. For example, as... Figure 1 As shown, if there are 6 ultraviolet irradiation units 160, then 6 mounting holes 132a are provided on the outer side plate 132.

[0056] The inner plate 134 of the aforementioned upper plates 132 and 134 is slightly smaller than the outer plate 132, and its upper surface is bonded to the lower surface of the outer plate 132 with adhesive. Furthermore, the inner plate 134 is also provided with a plurality of mounting holes 134a for mounting the ultraviolet irradiation section 160. When the inner plate 134 is bonded to the outer plate 132, the plurality of mounting holes 134a of the inner plate 134 communicate with the plurality of mounting holes 132a of the outer plate 132. And, as... Figure 2 and Figure 3 As shown, multiple lower plate bolt fastening components 134b and multiple pairs of ultraviolet irradiation part bolt fastening components 134c are integrally formed on the lower surface of the inner side plate 134. The lower plate bolt fastening components 134b are arranged along the edge of the inner side plate 134, and each pair of two ultraviolet irradiation part bolt fastening components 134c are located on both sides of each mounting hole 134a. Figure 2 The diagram illustrates eight bolt fastening components 134b for the lower plate and six pairs of bolt fastening components 134c for the ultraviolet irradiation section. This inner plate 134 is made of plastic and manufactured by injection molding.

[0057] It is possible to manufacture the aforementioned multiple bolt fastening components 134b and 134c from metal and weld them to the lower surface of the outer panel 132. However, in this case, weld marks are also visible on the upper surface of the outer panel 132, resulting in an unsightly appearance of the outer panel 132 and making its manufacture very inconvenient. Therefore, preferably, as described above, after the inner panel 134, in which the multiple bolt fastening components 134b and 134c are configured as a single unit, is injection molded, the inner panel 134 is bonded to the outer panel 132.

[0058] The lower plate 136 of the water receiving tray 130, together with the upper plates 132 and 134, surrounds the space 131. For example... Figure 2 and Figure 3As shown, a plurality of inner side plate bolt fastening components 136b are integrally formed on the upper surface of the lower plate 136. When these plurality of inner side plate bolt fastening components 136b and the aforementioned plurality of lower plate bolt fastening components 134b are in contact with the bolt B and fastened, the lower plate 136 is detachably coupled to the inner side plate 134 of the upper plates 132 and 134. Moreover, when this coupling is achieved, the edge of the lower plate 136 contacts the edge of the outer side plate 132 of the upper plates 132 and 134. In this case, in order to provide waterproofing for the space 131, a sealing gasket 138 is provided between the edge of the lower plate 135 and the edge of the outer side plate 132. This lower plate 136 is made of plastic material to transmit and receive wireless power and is manufactured by injection molding.

[0059] A wireless power receiver 140 is disposed in the water receiving tray 130 within the aforementioned installation space 131. For example, as... Figure 2 and Figure 3 As shown, the wireless power receiver 140 can be fixed to the lower surface of the inner side plate 134 of the upper plates 132 and 134 by means of adhesive or the like. This wireless power receiver 140 can be a printed circuit board with an antenna circuit pattern printed on it and other necessary electronic components mounted on it. Furthermore, the wireless power receiver 140 is connected to multiple ultraviolet irradiation units 160 via wires.

[0060] The wireless power receiver 140 can also be fixed to the upper surface of the lower plate 136. However, if the wireless power receiver 140 is fixed to the lower surface of the inner plate 134 as described above, the lower plate 136 is easier to handle during assembly and disassembly because the wires do not constrain it. Conversely, if the wireless power receiver 140 is fixed to the upper surface of the lower plate 136, the lower plate 136 is inconvenient to handle during assembly and disassembly because the wires constrain it. Therefore, it is preferable that the wireless power receiver 140 is fixed to the lower surface of the inner plate 134.

[0061] like Figure 2 and Figure 4 As shown, each ultraviolet irradiation unit 160 includes: a waterproof body 162, a light-transmitting cap 161, a bracket 165, and a printed circuit board 163.

[0062] The light-transmitting cap 161 has a hollow cap shape and is made of a material that allows ultraviolet light to pass through (e.g., quartz glass).

[0063] The bracket 165 includes a flat support member and a protruding member that projects upward from approximately the center of the support member. A pair of bolt holes 165a are formed on the support member. Furthermore, the protruding member has a hollow portion.

[0064] The printed circuit board 163 is fixed to the upper surface of the protruding part of the bracket 165 by adhesive. Furthermore, an ultraviolet light-emitting diode 164 is mounted on the printed circuit board 163. A wire extending from the printed circuit board 163 passes through the hollow portion of the protruding part and connects to the wireless power receiver 140. When power is supplied from the wireless power receiver 140 to the printed circuit board 163 via the wire, the ultraviolet light-emitting diode 164 operates and emits ultraviolet light.

[0065] If the protruding member is inserted into the light-transmitting cap 161 until the supporting member contacts the lower end of the light-transmitting cap 161, the bracket 165, which holds the printed circuit board 163, is combined with the light-transmitting cap 161. Furthermore, when the bracket 165 and the light-transmitting cap 161 are combined in this manner, the printed circuit board 163 and the ultraviolet light-emitting diode 164 are located inside the light-transmitting cap 161. Therefore, ultraviolet light irradiated from the ultraviolet light-emitting diode 164 will pass through the light-transmitting cap 161. On the other hand, for the waterproofing of the printed circuit board 163 and the ultraviolet light-emitting diode 164, an O-ring 166 is provided between the outer surface of the protruding member and the inner surface of the light-transmitting cap 161.

[0066] The waterproof body 162 is configured to insert into the mounting holes 132a and 134a of the upper plates 132 and 134 and be secured to the upper surface of the outer plate 132 and the lower surface of the inner plate 134. Furthermore, the waterproof body 162 has a hollow portion. The waterproof body 162 can be formed from a waterproof material such as silicone or rubber in the mounting holes 132a and 134a to achieve waterproofing.

[0067] With the bracket 165 and the light-transmitting cap 161 combined and the waterproof body 162 positioned in the mounting holes 132a and 134a, until the support member of the bracket 165 contacts the lower end of the waterproof body 162, and the light-transmitting cap 161 is tightly embedded in the hollow portion of the waterproof body 162 and penetrates through the waterproof body 162, if the bolt (not shown) passing through the bolt hole 165a of the support member is tightened into the ultraviolet irradiation portion bolt fastening member 134c formed on the lower surface of the inner side plate 134 (see reference...), Figure 3 The ultraviolet irradiation section 160 is detachably mounted on the upper plates 132 and 134.

[0068] Furthermore, if the ultraviolet irradiation section 160 is provided in the manner described above, the gap between the inner surface of the holes 132a and 134a and the outer surface of the light-transmitting cap 161 is waterproofed by the waterproof body 162, and the upper surface of the light-transmitting cap 161 is exposed to the inner space 114 of the outer casing 110, so that the ultraviolet rays from the light-transmitting cap 161 irradiate the product to be disinfected located in the inner space 114 of the outer casing 110.

[0069] On the other hand, the wireless power transmission unit 150 is disposed at the bottom 114a of the housing 110 so as to transmit power wirelessly to the wireless power receiver 140. In this case, as Figure 5 As shown, a hole is formed in the bottom 114a of the housing 110, and the wireless power transmission unit 150 is positioned below a plastic cover 152 that covers the hole. If the wireless power transmission unit 150 were positioned below the bottom 114a, which is made of metal, wireless power transmission would be impossible; therefore, the wireless power transmission unit 150 is positioned below the plastic cover 152 as described above. A support plate 154 for supporting the wireless power transmission unit 150 is combined with the plastic cover 152. Furthermore, when the drip tray 130 is placed in the bottom 114a of the housing 110, the wireless power transmission unit 150 and the wireless power receiving unit 140 are positioned facing each other. As this wireless power transmission unit 150, a printed circuit board with an antenna circuit pattern printed on it and other necessary electronic components mounted on it can be used.

[0070] In the ultraviolet sterilizer 100 described above, a Hall sensor 156 is provided in the wireless power transmission unit 150, and a magnet 136a is provided in the water receiving tray 130, which faces the Hall sensor 156 when the water receiving tray 130 is placed on the bottom 114a of the housing 110. For example, as Figure 5 As shown, the Hall sensor 156 is mounted on the wireless power transmission section 150 formed by the printed circuit board, as... Figure 3 As shown, magnet 136a is fixed to the upper surface of the lower plate 136 of the water tray 130. In this case, even if the user starts the ultraviolet sterilizer 100 by operating the power button, the wireless power transmission unit 150 will only transmit power wirelessly if the Hall sensor 156 detects the magnetic force of magnet 136a; otherwise, it will not transmit power wirelessly.

[0071] It is possible that users, due to error or intentional misplacement, fail to place the drip tray 130 within the internal space 114 of the housing 110 and activate the ultraviolet sterilizer 100, or place another metal drip tray instead of the drip tray 130 within the internal space 114 and activate the ultraviolet sterilizer 100. In such cases, if the wireless power transmission unit 150 transmits power wirelessly, unpredictable accidents may occur. In particular, if another metal drip tray is placed within the internal space 114, an explosion may occur. Therefore, in this invention, after detecting whether the drip tray 130 is placed at the bottom 114a of the housing 110 using the Hall sensor 156 and the magnet 136a, the wireless power transmission unit 150 transmits wireless power only when the tray is placed, thereby effectively preventing accidents.

[0072] On the other hand, in the ultraviolet sterilizer 100 of the present invention, the ultraviolet irradiation unit (ultraviolet lamp or ultraviolet light-emitting diode) may be provided on the top 114b of the housing 110, or it may be provided on both the top 114b and the side wall of the housing 110. In this case, the ultraviolet irradiation unit provided on the top 114b or the side wall may have a different structure than the ultraviolet irradiation unit 160 provided on the water receiving tray 130.

[0073] As described above, although the present invention has been described with reference to specific embodiments and accompanying drawings, the present invention is not limited thereto. Various modifications and variations can be made by those skilled in the art within the equivalent scope of the technical concept of the present invention and the scope of protection of the invention as described below. Of course, the above-described embodiments can be combined in various ways.

Claims

1. An ultraviolet sterilizer, characterized in that, include: The outer shell has an internal space for accommodating the items to be disinfected and a shelf for supporting the items to be disinfected. The front surface of the outer shell is an open surface, allowing the items to be disinfected and the shelf to enter and exit the internal space. It also has a door for opening and closing the front surface. The drip tray can enter and exit the interior space through the aforementioned front surface and is placed at the bottom of the interior space to receive water dripping from the aforementioned items to be disinfected. An ultraviolet irradiation unit is provided on the water receiving tray to irradiate the items to be disinfected placed on the shelf with ultraviolet light. A wireless power receiving unit is installed in the aforementioned water receiving pan so that it can receive power wirelessly and supply it to the aforementioned ultraviolet irradiation unit. as well as A wireless power transmission unit is provided at the bottom to transmit power to the wireless power receiving unit wirelessly. The aforementioned water receiving tray includes: The upper plate has a hole for the ultraviolet irradiation part and receives water dripping from the items to be disinfected. as well as The lower plate, together with the upper plate, surrounds the space where the wireless power receiver is installed.

2. The ultraviolet sterilizer according to claim 1, characterized in that, The aforementioned water tray also includes a portion covering the bottom of the aforementioned wireless power transmission unit and the aforementioned lower plate, both of which are made of plastic to enable the transmission and reception of wireless power.

3. The ultraviolet sterilizer according to claim 2, characterized in that, The aforementioned upper panel includes: The outer metal panel is used to collect water dripping from the aforementioned items to be disinfected; and The inner panel, made of plastic, has its upper surface bonded to the lower surface of the outer panel. The lower plate is detachably attached to the inner plate.

4. The ultraviolet sterilizer according to claim 3, characterized in that, When the lower plate is combined with the inner plate, a sealing gasket is provided between the edge of the lower plate and the edge of the outer plate.

5. The ultraviolet sterilizer according to claim 3, characterized in that, The aforementioned wireless power receiver is fixed to the lower surface of the inner side plate and electrically connected to the aforementioned ultraviolet irradiation unit.

6. The ultraviolet sterilizer according to claim 1, characterized in that, The aforementioned ultraviolet irradiation unit includes: The waterproof body is installed in the aforementioned mounting hole in a waterproof manner; A light-transmitting cap is tightly embedded in and penetrates the aforementioned waterproof body, and is made of a material that can transmit ultraviolet rays, with its upper surface exposed to the aforementioned internal space; A bracket, located in the aforementioned installation space and in contact with the lower end of the aforementioned waterproof body and the lower end of the light-transmitting cap, includes a support member that is detachably connected to the aforementioned upper plate and a protruding member that protrudes upward from the support member and inserts into the interior of the aforementioned light-transmitting cap; and A printed circuit board, fixed to the upper surface of the aforementioned protruding component, is equipped with an ultraviolet light-emitting diode and is electrically connected to the aforementioned wireless power receiver.

7. The ultraviolet sterilizer according to claim 6, characterized in that, An O-ring is provided between the inner surface of the aforementioned light-transmitting cap and the outer surface of the aforementioned protruding component.

8. The ultraviolet sterilizer according to claim 1, characterized in that, The wireless power transmission unit is equipped with a Hall sensor, and the water receiving tray is equipped with a magnet that faces the Hall sensor when the water receiving tray is placed at the bottom. The wireless power transmission unit will only transmit wireless power when the Hall sensor detects the magnetic force of the magnet.

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