WO2021049291A1 - Dispositif d'irradiation de lumière ultraviolette - Google Patents

Dispositif d'irradiation de lumière ultraviolette Download PDF

Info

Publication number
WO2021049291A1
WO2021049291A1 PCT/JP2020/032083 JP2020032083W WO2021049291A1 WO 2021049291 A1 WO2021049291 A1 WO 2021049291A1 JP 2020032083 W JP2020032083 W JP 2020032083W WO 2021049291 A1 WO2021049291 A1 WO 2021049291A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultraviolet light
irradiation device
emitting element
light emitting
substrate
Prior art date
Application number
PCT/JP2020/032083
Other languages
English (en)
Japanese (ja)
Inventor
孝次 青
伊藤　浩史
Original Assignee
豊田合成株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 豊田合成株式会社 filed Critical 豊田合成株式会社
Publication of WO2021049291A1 publication Critical patent/WO2021049291A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Definitions

  • the present invention relates to an ultraviolet light irradiation device.
  • Patent Document 1 a light emitting device having a structure that uses an ultraviolet light emitting diode as a light source and prevents moisture and water from entering the inside is known (see, for example, Patent Document 1).
  • the light emitting device described in Patent Document 1 covers the cavity and the body having a stepped structure around the cavity, the ultraviolet light emitting diode arranged in the cavity, and the cavity, and the outer peripheral portion is on the stepped structure of the conductor. Includes a transparent window arranged in the transparent window, an adhesive member arranged between the transparent window and the fuselage, and a waterproof layer arranged on the transparent window and the fuselage. In this light emitting device, the waterproof layer and the adhesive member block the moisture entering from between the transparent window and the body.
  • the adhesive member is provided at a position where it is exposed to the ultraviolet light emitted from the ultraviolet light emitting diode, it may be deteriorated by the ultraviolet light and the waterproof function may be deteriorated.
  • An object of the present invention is an ultraviolet light irradiation device using a light emitting element that emits ultraviolet light as a light source, and has a structure in which irradiation of ultraviolet light from a light source to a component that is feared to be deteriorated by ultraviolet light is prevented.
  • the purpose is to provide an irradiation device.
  • One aspect of the present invention provides the following ultraviolet light irradiation devices [1] to [10] in order to achieve the above object.
  • a harness cover that covers the portion and a waterproof sheet that transmits the ultraviolet light and is installed so as to cover the upper part of the light emitting element are provided so as not to be irradiated with the ultraviolet light emitted from the waterproof sheet.
  • a spacer provided on the substrate so as to surround the light emitting element for forming a space between the substrate and the waterproof sheet is provided, and the harness cover holds the light emitting element inside the spacer.
  • An annular component provided on the substrate so as to surround the substrate and having a linear gap opening on the substrate side, wherein the portion of the harness is housed in the gap of the harness cover. ].
  • the ultraviolet light irradiation device [3] The ultraviolet light irradiation device according to the above [2], wherein the gap of the harness cover is filled with a material having waterproof performance.
  • An annular seal provided on the outside of the harness cover and compressed between the substrate and the tarpaulin to prevent liquid from entering the mounting area from between the substrate and the tarpaulin.
  • the ultraviolet light irradiation device according to the above [2] or [3], further comprising a component, wherein the ultraviolet light emitted from the light emitting element is blocked by the harness cover and is not irradiated to the seal component.
  • the harness cover is a spacer provided on the substrate so as to surround the light emitting element for forming a space between the substrate and the waterproof sheet, and the harness cover is placed on the substrate side.
  • the ultraviolet light irradiation device according to the above [1] which has a linear first gap to be opened, and the portion of the harness is housed in the first gap of the harness cover.
  • the harness cover has a linear second gap that opens to the waterproof sheet side, and an annular sealing component is housed in the second gap.
  • an ultraviolet light irradiation device using a light emitting element that emits ultraviolet light as a light source, and having a structure in which irradiation of ultraviolet light from the light source to a component that is feared to be deteriorated by the ultraviolet light is prevented.
  • An irradiation device can be provided.
  • FIG. 1 is a perspective view of the ultraviolet light irradiation device according to the first embodiment.
  • FIG. 2 is a vertical cross-sectional view of the ultraviolet light irradiation device cut along the cutting line AA of FIG.
  • FIG. 3 is an exploded perspective view of the ultraviolet light irradiation device according to the first embodiment.
  • FIG. 4 is a vertical cross-sectional view of a modified example of the ultraviolet light irradiation device according to the first embodiment.
  • FIG. 5 is a vertical cross-sectional view of the ultraviolet light irradiation device according to the second embodiment.
  • FIG. 6 is a vertical cross-sectional view of a modified example of the ultraviolet light irradiation device according to the second embodiment.
  • FIG. 1 is a perspective view of the ultraviolet light irradiation device according to the first embodiment.
  • FIG. 2 is a vertical cross-sectional view of the ultraviolet light irradiation device cut along the cutting line AA of FIG.
  • FIG. 3 is an exploded
  • FIG. 7 is a vertical cross-sectional view of a modified example of the ultraviolet light irradiation device according to the second embodiment.
  • FIG. 8 is a vertical cross-sectional view of a modified example of the ultraviolet light irradiation device according to the second embodiment.
  • FIG. 9 is a vertical cross-sectional view of the ultraviolet light irradiation device according to the third embodiment.
  • FIG. 1 is a perspective view of the ultraviolet light irradiation device 1 according to the first embodiment.
  • the ultraviolet light irradiation device 1 is a sterilization device that uses a light emitting element 11 that emits ultraviolet light as a light source to sterilize an object to be irradiated by irradiation with ultraviolet light. Since the ultraviolet light irradiation device 1 has a waterproof structure in which the mounting region of the light emitting element 11 is sealed, it can be used in a fluid such as water, and is used, for example, for sterilizing the fluid.
  • the light emitting element 11 is, for example, a light emitting diode (LED) or a laser diode (LD), and an LED is typically used.
  • the light emitting diode is a small light emitting element, has low power consumption and heat generation, and has a long life, and is therefore suitable for use as the light emitting element 11.
  • the ultraviolet light irradiation device 1 may have one light emitting element 11 or may have a plurality of light emitting elements 11.
  • the wavelength of the ultraviolet light emitted by the light emitting element 11 is not particularly limited, but for example, ultraviolet light in the wavelength range (400 to 315 nm) called UV-A, ultraviolet light in the wavelength range (315 to 280 nm) called UV-B, and UV. It is ultraviolet light in a wavelength range (less than 280 nm) called ⁇ C, and UV—C having the highest bactericidal effect is preferable.
  • FIG. 2 is a vertical cross-sectional view of the ultraviolet light irradiation device 1 cut along the cutting line AA of FIG.
  • the ultraviolet light irradiation device 1 is provided on a substrate 10 having wiring, a light emitting element 11 mounted on the substrate 10 that emits ultraviolet light, a harness 18 connected to the wiring of the substrate 10, and a substrate 10 of the harness 18.
  • a harness cover 20 that covers a portion of the harness 18 located on the substrate 10 and a light emitting device that is installed so as to cover above the light emitting element 11 so that the located portion is not directly irradiated with ultraviolet light emitted from the light emitting element 11.
  • a waterproof sheet (film) 13 that transmits ultraviolet light emitted from the element 11 is provided.
  • the substrate 10 is a substrate having wiring (not shown), and the electrode of the light emitting element 11 is connected to the wiring.
  • the substrate 10 is preferably a substrate having high thermal conductivity, such as an alumina substrate or an aluminum substrate (aluminum plate covered with an insulating resist), in order to efficiently discharge the heat generated from the light emitting element 11.
  • the heat sink 16 is provided.
  • the ultraviolet light irradiation device 1 is used in a fluid such as water, heat can be released to the fluid, so that the heat sink 16 does not have to be provided.
  • the waterproof sheet 13 has a property of transmitting ultraviolet light emitted from the light emitting element 11. Therefore, the material of the waterproof sheet 13 is selected according to the emission wavelength of the light emitting element 11. For example, when the light emitting element 11 emits light in the wavelength range of UV-A or UV-B, a fluororesin or silicone resin is used as the material of the waterproof sheet 13, and the light emitting element 11 emits light in the wavelength range of UV-C. When the above is emitted, a fluororesin is used as a material for the waterproof sheet 13.
  • the waterproof sheet 13 has a property of being deformed by a load. Therefore, by deforming with respect to a temperature change or an external force, the change in pressure inside the ultraviolet light irradiation device 1 (the mounting region 51 of the light emitting element 11 on the substrate 10) is alleviated, and airtightness is ensured. Can be done. In this respect, the waterproof sheet 13 is superior to a lens made of quartz glass or sapphire that does not deform.
  • the waterproof sheet 13 has a lower heat insulating property than a lens made of quartz glass or sapphire, it is possible to suppress heat buildup in the mounting region 51.
  • the harness cover 20 is an annular component provided on the substrate 10 so as to surround the light emitting element 11 inside the spacer 15, and has a linear gap 20a that opens on the substrate 10 side.
  • the portion of the harness 18 located on the substrate 10 is housed in the gap 20a of the harness cover 20.
  • the position of the harness 18 in the gap 20a is not limited to the position appearing in the cross section of FIG.
  • a harness connector 19 is provided at the end of the harness 18 extending to the outside of the mounting area 51 of the sealed light emitting element 11, and the harness is provided from an external power source connected by the harness connector 19. Electric power is supplied to the light emitting element 11 via the wiring between the 18 and the substrate 10.
  • the harness cover 20 is preferably made of a material having resistance to ultraviolet light emitted by the light emitting element 11.
  • a fluororesin such as polytetrafluoroethylene (PTFE), aluminum (Al), silicone resin, or the like is used as the material of the harness cover 20.
  • PTFE polytetrafluoroethylene
  • Al aluminum
  • silicone resin silicone resin
  • the harness cover 20 has a high reflectance in addition to the resistance to the ultraviolet light emitted by the light emitting element 11.
  • fluororesin, Al, or the like is used as the material of the harness cover 20.
  • the surface of the harness cover 20 may be surface-treated such as Al plating to increase the resistance and reflectance of the surface of the harness cover 20 to ultraviolet light.
  • the portion other than the surface of the harness cover 20 does not need to have resistance to ultraviolet light and reflectance, the range of material selection is widened.
  • the upper end of the harness cover 20 is in contact with the waterproof sheet 13, and the harness cover 20 is fixed by receiving a force from the waterproof sheet 13 so as to be pressed downward.
  • the harness cover 20 is positioned by the seat cover 14 and the seal component 12. You can also do it.
  • the gap 20a of the harness cover 20 may be filled with a material having waterproof performance such as silicone resin. In this case, the waterproof performance of the harness 18 housed in the gap 20a is improved.
  • the ultraviolet light irradiation device 1 includes an uninterrupted annular spacer 15 for forming a distance between the substrate 10 and the waterproof sheet 13 provided on the substrate 10 so as to surround the light emitting element 11, and the waterproof sheet 13. It comprises an uninterrupted annular seat cover 14 installed above and open in the region above the light emitting element 11 and an uninterrupted annular seal component 12 provided between the substrate 10 and the spacer 15. ..
  • the seat cover 14 has an opening 14b located above the light emitting element 11.
  • the ultraviolet light emitted from the light emitting element 11 passes through the waterproof sheet 13 and is taken out from the opening 14b of the seat cover 14.
  • the seat cover 14 is preferably made of a material that is not deteriorated by ultraviolet light emitted from the light emitting element 11, and is made of, for example, Al.
  • the material of the seat cover 14 can be selected according to the emission wavelength of the light emitting element 11.
  • the spacer 15 is a plate-shaped component having an opening 15b located above the light emitting element 11. By matching the shape and size of the opening 15b and the seal component 12, the seal component 12 can be positioned by the spacer 15.
  • the spacer 15 is made of, for example, Al.
  • any component such as a washer that can form a gap between the substrate 10 and the waterproof sheet 13 can be used as a spacer instead of the spacer 15.
  • the washer when used as a spacer, it is installed so as to be aligned with the position of the fixing screw 17 described later so that each of the fixing screw 17 penetrates the washer.
  • FIG. 3 is an exploded perspective view of the ultraviolet light irradiation device 1 according to the first embodiment.
  • the seat cover 14, the tarpaulin 13, the spacer 15, the substrate 10, and the heat sink 16 have screw holes 14a, 13a, 15a, 10a, and 16a for screwing, respectively, and are provided by the fixing screws 17. It is screwed.
  • the outer peripheral portion of the waterproof sheet 13 is sandwiched between the seal component 12, the spacer 15, and the seat cover 14, and the waterproof sheet 13 is fixed.
  • the ultraviolet light irradiation device 1 has a waterproof structure in which the mounting region 51 of the light emitting element 11 on the substrate 10 is sealed.
  • the configuration of the waterproof structure will be described.
  • the substrate 10, the sealing component 12, and the waterproof sheet 13 constituting the ultraviolet light irradiation device 1 are all made of a material that does not allow water to pass through.
  • a downward force from the seat cover 14 is applied to the seal component 12 via the waterproof sheet 13 by screwing using the fixing screw 17, and the seal component 12 is in the thickness direction. It is compressed and deformed.
  • a liquid such as water can flow from between the substrate 10 and the waterproof sheet 13 to the mounting region of the light emitting element 11 on the substrate 10. It is prevented from invading 51.
  • the seal component 12 is, for example, a sheet-like member having an O-ring, packing, and an opening.
  • the thickness of the seal component 12 in the state of being incorporated in the ultraviolet light irradiation device 1, that is, the thickness after compression is 65 to 95% of the thickness before being incorporated in the ultraviolet light irradiation device 1, that is, the thickness before compression. Is preferable. If it is less than 65% of the thickness before compression, the seal component 12 may be cracked due to overpressurization. If it exceeds 95% of the thickness before compression, the sealing property is poor, and for example, when immersed in water, water may infiltrate into the mounting region 51.
  • the spacer 15 When the seal part 12 is compressed by screwing with the fixing screw 17, the spacer 15 functions as a stopper. Therefore, the amount of compression of the seal component 12 can be adjusted by adjusting the thickness of the spacer 15. In order for the thickness of the seal component 12 after compression to be 65 to 95% of the thickness before compression, the thickness of the spacer 15 is set to 65 to 95% of the thickness of the seal component 12 before compression.
  • the ultraviolet light irradiation device 1 has a structure that protects the harness 18 and the seal component 12 from the ultraviolet light emitted from the light emitting element 11. By preventing deterioration of the harness 18 due to ultraviolet light, malfunction of the light emitting element 11 can be prevented, and by preventing deterioration of the seal component 12 due to ultraviolet light, deterioration of the waterproof function of the ultraviolet light irradiation device 1 can be prevented.
  • the configuration of the waterproof structure will be described.
  • the harness 18 is housed in the gap 20a of the harness cover 20. Therefore, the ultraviolet light emitted from the light emitting element toward the harness 18 is obstructed by the harness cover 20. That is, in the ultraviolet light irradiation device 1, the harness 18 is not irradiated with the ultraviolet light emitted from the light emitting element 11.
  • the seal component 12 is located outside the harness cover 20, and the upper end of the harness cover 20 is higher than the upper end of the light emitting element 11 and the upper end of the seal component 12. Therefore, the ultraviolet light emitted from the light emitting element toward the seal component 12 is obstructed by the harness cover 20. That is, in the ultraviolet light irradiation device 1, the seal component 12 is not irradiated with the ultraviolet light emitted from the light emitting element 11.
  • FIG. 4 is a vertical cross-sectional view of the ultraviolet light irradiation device 2 which is a modification of the ultraviolet light irradiation device 1.
  • the configuration of the ultraviolet light irradiation device 2 is different from the configuration of the ultraviolet light irradiation device 1 in that a lens 21 covering the upper part of the light emitting element 11 is provided in the mounting region 52 of the light emitting element 11.
  • the lens 21 has a function of preventing damage to the light emitting element 11 when the ultraviolet light irradiation device 2 receives an external force and a function of controlling light distribution. On the other hand, since the lens 21 is covered with the waterproof sheet 13, it is protected from scratches and dirt.
  • the lens 21 covers the upper part of the light emitting element 11, and the upper surface thereof is in contact with the waterproof sheet 13.
  • the position of the lens 21 is fixed by receiving a force that is pressed downward from the waterproof sheet 13 and supporting the bottom edge of the lens 21 by the harness cover 20. Therefore, even when the pressure inside the lens 21 and the harness cover 20 increases, the displacement of the lens 21 can be effectively prevented.
  • the portion of the harness cover 20 that supports the lens 21 is provided with a groove 20a having a shape corresponding to the shape of the bottom edge of the lens 21.
  • the lens 21 has a property of transmitting ultraviolet light emitted from the light emitting element 11.
  • the light emitted from the light emitting element 11 is ultraviolet light in the UV-C wavelength range
  • quartz glass, transparent fluororesin, UV-C transmissive glass, or the like can be used as the material of the lens 21.
  • the shape of the lens 21 is, for example, a convex shape, a Fresnel shape, or a cylindrical shape.
  • the ultraviolet light irradiation device 2 Similar to the ultraviolet light irradiation device 1, the ultraviolet light irradiation device 2 also has a waterproof structure in which the mounting area 52 of the light emitting element 11 on the substrate 10 is sealed, and the harness 18 is emitted from the ultraviolet light emitted from the light emitting element 11. And has a structure to protect the seal component 12.
  • the ultraviolet light irradiation device has the ultraviolet rays according to the first embodiment in that the spacer for forming the space between the substrate and the waterproof sheet functions as a harness cover. Different from the light irradiation device. The description may be omitted or simplified with respect to the points common to the first embodiment.
  • FIG. 5 is a vertical cross-sectional view of the ultraviolet light irradiation device 3 according to the second embodiment.
  • the ultraviolet light irradiation device 3 covers the substrate 10 having wiring, the light emitting element 11 mounted on the substrate 10 to emit ultraviolet light, the harness 18 connected to the wiring of the substrate 10, and the upper part of the light emitting element 11.
  • the waterproof sheet 13 that transmits ultraviolet light emitted from the light emitting element 11 and the substrate 10
  • the waterproof sheet 13 provided on the substrate 10 so as to surround the light emitting element 11.
  • the spacer 22 and the spacer 22 of the above are provided.
  • the spacer 22 has a function as a harness cover.
  • the spacer 22 has a linear gap 22a that opens on the substrate 10 side, and a portion of the harness 18 located on the substrate 10 is housed in the gap 22a.
  • the position of the harness 18 in the gap 22a is not limited to the position appearing in the cross section of FIG.
  • a protective layer 23 having resistance to ultraviolet light emitted from the light emitting element 11 is provided on the side surface 22c inside the spacer 22 (on the light emitting element 11 side).
  • a fluorine resin, Al, a silicone resin or the like is used as a material for the protective layer 23, and the light emitting element 11 has a wavelength of UV-C.
  • a fluororesin and Al are used as materials for the protective layer 23.
  • the protective layer 23 has a high reflectance in addition to the resistance to the ultraviolet light emitted by the light emitting element 11.
  • fluororesin, Al, or the like is used as the material of the protective layer 23.
  • the protective layer 23 is formed, for example, by coating or attaching a sheet-shaped protective layer 23.
  • the spacer 22 does not need to have resistance to ultraviolet light and reflectance, so that the range of material selection is widened.
  • a fluororesin having excellent resistance to ultraviolet light is used as the material of the spacer 22
  • a protective layer 23 on the side surface 22c of the spacer 22 and use a material having a hardness such as polycarbonate (PC) that does not easily cause buckling during screwing as the material of the spacer 22.
  • PC polycarbonate
  • the gap 22a of the spacer 22 may be filled with a material having waterproof performance such as silicone resin. In this case, the waterproof performance of the harness 18 housed in the gap 22a is improved.
  • the ultraviolet light irradiation device 3 has an uninterrupted annular seal component 24 housed in the gap 22a of the spacer 22 and an uninterrupted ring-shaped seal part 24 housed in the linear gap 22b opened on the waterproof sheet 13 side of the spacer 22.
  • An annular seal component 25 is provided.
  • the portion of the harness 18 located on the substrate 10 is located inside the seal component 24 in the gap 22a.
  • the ultraviolet light irradiation device 3 is installed on the waterproof sheet 13 and includes a continuous annular seat cover 14 that opens in the region above the light emitting element 11.
  • the seat cover 14, the tarpaulin 13, the spacer 22, the substrate 10, and the heat sink 16 have screw holes for screwing, respectively. And is screwed by the fixing screw 17. By screwing, the outer peripheral portion of the waterproof sheet 13 is sandwiched between the seal component 25, the spacer 22, and the seat cover 14, and the waterproof sheet 13 is fixed.
  • the ultraviolet light irradiation device 3 has a waterproof structure in which the mounting region 53 of the light emitting element 11 on the substrate 10 is sealed.
  • the configuration of the waterproof structure will be described.
  • the substrate 10, the sealing parts 24, 25, the tarpaulin 13, and the spacer 22 constituting the ultraviolet light irradiation device 3 are all made of a water-impermeable material.
  • a downward force from the seat cover 14 is applied to the seal component 25 via the waterproof sheet 13 by screwing using the fixing screw 17, and the seal component 25 is in the thickness direction. It is compressed and deformed. Further, a downward force is applied to the seal component 24 from the spacer 22, and the seal component 24 is compressed and deformed in the thickness direction.
  • Seal parts 24 and 25 are, for example, O-rings and packings.
  • the thickness of the seal parts 24 and 25 in the state of being incorporated in the ultraviolet light irradiation device 1, that is, the thickness after compression is 65, which is the thickness before compression, as in the seal component 12 according to the first embodiment. It is preferably ⁇ 95%.
  • the amount of compression of the sealing parts 24 and 25 can be adjusted by adjusting the thickness of the gaps 22a and 22b of the spacer 22.
  • the thickness of the gaps 22a and 22b should be 65 of the thickness of the sealing parts 24 and 25 before compression. It shall be ⁇ 95%.
  • the ultraviolet light irradiation device 3 has a structure that protects the harness 18 and the sealing parts 24 and 25 from the ultraviolet light emitted from the light emitting element 11.
  • the ultraviolet light irradiation device 3 has a structure that protects the harness 18 and the sealing parts 24 and 25 from the ultraviolet light emitted from the light emitting element 11.
  • the harness 18 is housed in the gap 22a of the spacer 22. Therefore, the ultraviolet light emitted from the light emitting element toward the harness 18 is blocked by the protective layer 23 (spacer 22 when the protective layer 23 is not provided) on the side surface 22c of the spacer 22. That is, in the ultraviolet light irradiation device 3, the harness 18 is not irradiated with the ultraviolet light emitted from the light emitting element 11.
  • the sealing parts 24 and 25 are housed in the gaps 22a and 22b of the spacer 22. Therefore, the ultraviolet light emitted from the light emitting element toward the sealing parts 24 and 25 is blocked by the protective layer 23 (spacer 22 when the protective layer 23 is not provided) on the side surface 22c of the spacer 22. That is, in the ultraviolet light irradiation device 3, the seal parts 24 and 25 are not irradiated with the ultraviolet light emitted from the light emitting element 11.
  • FIG. 6 is a vertical cross-sectional view of the ultraviolet light irradiation device 4, which is a modified example of the ultraviolet light irradiation device 3.
  • the configuration of the ultraviolet light irradiation device 4 is different from the configuration of the ultraviolet light irradiation device 3 in that a lens 26 covering the upper part of the light emitting element 11 is provided in the mounting region 54 of the light emitting element 11.
  • the lens 26 has a function of preventing damage to the light emitting element 11 when the ultraviolet light irradiation device 4 receives an external force and a function of controlling light distribution.
  • the lens 26 since the lens 26 is covered with the waterproof sheet 13, it is protected from scratches and dirt.
  • the lens 26 covers the upper part of the light emitting element 11, and the upper surface thereof is in contact with the waterproof sheet 13.
  • the lens 26 receives a force that is pressed downward from the waterproof sheet 13, and the bottom edge is supported by the protective layer 23 (or the side surface 22c of the spacer 22 if the protective layer 23 is not provided).
  • the position is fixed. Therefore, even when the pressure inside the lens 26 and the protective layer 23 (the side surface 22c of the spacer 22) is increased, the displacement of the lens 26 can be effectively prevented.
  • the portion of the protective layer 23 that supports the lens 26 is provided with a groove 23a having a shape corresponding to the shape of the bottom edge of the lens 26.
  • a similar groove is provided in the portion of the side surface 22c of the spacer 22 that supports the lens 26.
  • the lens 26 is made of the same material as the lens 21 according to the first embodiment and has the same shape.
  • the ultraviolet light irradiation device 4 also has a waterproof structure in which the mounting area 54 of the light emitting element 11 on the substrate 10 is sealed, and the harness 18 is emitted from the ultraviolet light emitted from the light emitting element 11. It has a structure that protects the seal parts 24 and 25.
  • FIG. 7 is a vertical cross-sectional view of the ultraviolet light irradiation device 5, which is a modified example of the ultraviolet light irradiation device 3.
  • the configuration of the ultraviolet light irradiation device 5 is different from the configuration of the ultraviolet light irradiation device 3 in that protrusions are provided on the spacer 22 instead of using the sealing parts 24 and 25 in order to form the waterproof structure.
  • a protrusion 27 protruding toward the substrate 10 is provided on the lower surface of the spacer 22, and a protrusion 28 protruding toward the waterproof sheet 13 is provided on the upper surface of the spacer 22.
  • the protrusion 27 is pressed against the substrate 10 and elastically deformed, so that a liquid such as water flows from between the substrate 10 and the spacer 22 to the mounting region 53 of the light emitting element 11 on the substrate 10. Is prevented from invading. Further, the protrusion 28 is pressed against the waterproof sheet 13 and elastically deformed to prevent liquids such as water from entering the mounting area 53 from between the waterproof sheet 13 and the spacer 22.
  • the spacer 22 in the ultraviolet light irradiation device 5 is preferably made of a material such as silicone rubber so that the spacer 22 does not easily buckle when screwed and the protrusions 27 and 28 can be elastically deformed.
  • the ultraviolet light irradiation device 5 also has a waterproof structure in which the mounting area 55 of the light emitting element 11 on the substrate 10 is sealed, and the harness 18 is emitted from the ultraviolet light emitted from the light emitting element 11. Has a structure that protects.
  • the seal component 25 may be replaced with the protrusion 28, and the seal component 24 and the protrusion 28 may form a waterproof structure. Further, the seal component 24 may be replaced with the protrusion 27, and the seal component 25 and the protrusion 27 may form a waterproof structure.
  • FIG. 8 is a vertical cross-sectional view of the ultraviolet light irradiation device 6, which is a modified example of the ultraviolet light irradiation device 3.
  • the configuration of the ultraviolet light irradiation device 6 is that a lens 26 that covers the upper part of the light emitting element 11 is provided in the mounting area 56 of the light emitting element 11, and a protrusion is provided on the spacer 22 instead of using the sealing parts 24 and 25. , The configuration is different from that of the ultraviolet light irradiation device 3.
  • the ultraviolet light irradiation device uses a claw fitting such as a snap fit instead of screwing using a fixing screw, and the ultraviolet light irradiation according to the first embodiment. Different from the device. The description may be omitted or simplified with respect to the points common to the first embodiment.
  • FIG. 9 is a vertical cross-sectional view of the ultraviolet light irradiation device 7 according to the third embodiment.
  • the seat cover 30 and the heat sink 31 of the ultraviolet light irradiation device 7 have a claw fitting structure such as a snap fit.
  • the ultraviolet light irradiation device 7 is different from the ultraviolet light irradiation device 1 according to the first embodiment in the form of the seat cover and the heat sink.
  • the seat cover 30 includes a flat plate-shaped main body 30a located on the outer peripheral portion of the waterproof sheet 13, an elastic portion 30b extending from the edge of the main body 30a toward the heat sink 31, and a claw 30c provided at the tip of the elastic portion 30b.
  • a step 31a for fitting the claw 30c of the seat cover 30 is provided at a position corresponding to the position of the claw 30c of the seat cover 30 near the upper end of the heat sink 31.
  • the position of the claw 30c on the seat cover 30 is not particularly limited.
  • the elastic portion extending from two opposite sides of the main body 30a of the quadrangular seat cover 30. Two are provided at each tip of 30b.
  • a positioning guide extending toward the heat sink 31 side is provided on the side of the main body 30a where the elastic portion 30b is not provided.
  • the material of the seat cover 30 a material such as polycarbonate, which can elastically deform the elastic portion 30b at the time of attachment and has sufficient strength to sufficiently fix each part after the attachment, is used.
  • the claws 30c move toward the step 31a of the heat sink 31 with the elastic portion 30b elastically deformed. Then, when the claw 30c reaches the step 31a, the claw 30c is fitted to the step 31a by the restoring force of the elastic portion 30b, and the substrate 10, the spacer 15, the waterproof sheet 13 between the main body 30a of the seat cover 30 and the heat sink 31 And the seal component 12 is fixed.
  • the sealing component 12 is compressed in the thickness direction by the claw fitting of the claw 30c of the seat cover 30 and the step 31a of the heat sink 31, and a waterproof structure is formed.
  • the seat cover 14, the waterproof sheet 13, the spacer 15, the substrate 10, and the heat sink 16 do not have screw holes for screwing, respectively.
  • the ultraviolet light irradiation device 7 also has a waterproof structure in which the mounting area 57 of the light emitting element 11 on the substrate 10 is sealed, and the harness 18 is emitted from the ultraviolet light emitted from the light emitting element 11. And has a structure to protect the seal component 12.
  • each part is fixed by claw fitting instead of screwing by using the seat cover 30 and the heat sink 31 of the ultraviolet light irradiation device 7 instead of the seat cover 14 and the heat sink 16. May be good.
  • each of the ultraviolet light irradiation devices 2 to 6 has a waterproof structure, and has a structure for protecting the harness and the seal component (harness when the seal component is not used) from the ultraviolet light.
  • an ultraviolet light irradiation device having a waterproof structure that can be used in a humid environment or in a fluid such as water, a harness and a harness that may be deteriorated by ultraviolet light.
  • the sealing component can be protected from the ultraviolet light emitted from the light source.
  • the present invention is not limited to the above embodiments, and various modifications can be carried out within a range that does not deviate from the gist of the invention.
  • the components of the above-described embodiment can be arbitrarily combined within a range that does not deviate from the gist of the invention.
  • an ultraviolet light irradiation device that uses a light emitting element that emits ultraviolet light as a light source, and has a structure in which irradiation of ultraviolet light from the light source to parts that are feared to be deteriorated by ultraviolet light is prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne un dispositif d'irradiation de lumière ultraviolette 1 qui comprend : un substrat 10 ayant un câblage ; un élément d'émission de lumière 11 qui est monté sur le substrat 10 et émet une lumière ultraviolette ; un harnais 18 relié au câblage du substrat 10 ; un revêtement de harnais 20 qui recouvre une partie du harnais 18 située sur le substrat 10 de telle sorte que la partie n'est pas irradiée avec la lumière ultraviolette générée à partir de l'élément d'émission de lumière 11 ; et une feuille imperméable à l'eau 13 qui est disposée de façon à recouvrir l'élément d'émission de lumière 11 depuis le dessus et permet à la lumière ultraviolette d'être transmise à travers celle-ci, une région de montage 51 sur le substrat 10 pour monter l'élément d'émission de lumière 11 étant scellée par la feuille imperméable à l'eau 13 par le dessus.
PCT/JP2020/032083 2019-09-13 2020-08-25 Dispositif d'irradiation de lumière ultraviolette WO2021049291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-167548 2019-09-13
JP2019167548A JP7211311B2 (ja) 2019-09-13 2019-09-13 紫外光照射装置

Publications (1)

Publication Number Publication Date
WO2021049291A1 true WO2021049291A1 (fr) 2021-03-18

Family

ID=74863183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/032083 WO2021049291A1 (fr) 2019-09-13 2020-08-25 Dispositif d'irradiation de lumière ultraviolette

Country Status (2)

Country Link
JP (1) JP7211311B2 (fr)
WO (1) WO2021049291A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114335302A (zh) * 2021-12-29 2022-04-12 马鞍山杰生半导体有限公司 紫外发光装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023042862A1 (fr) * 2021-09-16 2023-03-23 旭化成株式会社 Appareil d'irradiation par rayons ultraviolets

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010287312A (ja) * 2009-01-13 2010-12-24 Enplas Corp 発光装置及び照明装置
JP2014026769A (ja) * 2012-07-25 2014-02-06 Panasonic Corp 車両用前照灯
WO2014115202A1 (fr) * 2013-01-25 2014-07-31 パナソニック株式会社 Boîtier pour éléments électroluminescents et dispositif électroluminescent utilisant celui-ci
US20160273741A1 (en) * 2015-03-20 2016-09-22 Suk-ho JUNG Light module, illumination apparatus comprising one-body type molding substrate, and method for fabricating the light module
JP2017059617A (ja) * 2015-09-15 2017-03-23 パナソニックＩｐマネジメント株式会社 発光装置
US20180010784A1 (en) * 2015-01-28 2018-01-11 Lg Innotek Co., Ltd. Light source unit
JP2018509290A (ja) * 2015-03-20 2018-04-05 フィリップス ライティング ホールディング ビー ヴィ Ｕｖ−ｃ浄水装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010287312A (ja) * 2009-01-13 2010-12-24 Enplas Corp 発光装置及び照明装置
JP2014026769A (ja) * 2012-07-25 2014-02-06 Panasonic Corp 車両用前照灯
WO2014115202A1 (fr) * 2013-01-25 2014-07-31 パナソニック株式会社 Boîtier pour éléments électroluminescents et dispositif électroluminescent utilisant celui-ci
US20180010784A1 (en) * 2015-01-28 2018-01-11 Lg Innotek Co., Ltd. Light source unit
US20160273741A1 (en) * 2015-03-20 2016-09-22 Suk-ho JUNG Light module, illumination apparatus comprising one-body type molding substrate, and method for fabricating the light module
JP2018509290A (ja) * 2015-03-20 2018-04-05 フィリップス ライティング ホールディング ビー ヴィ Ｕｖ−ｃ浄水装置
JP2017059617A (ja) * 2015-09-15 2017-03-23 パナソニックＩｐマネジメント株式会社 発光装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114335302A (zh) * 2021-12-29 2022-04-12 马鞍山杰生半导体有限公司 紫外发光装置
CN114335302B (zh) * 2021-12-29 2024-04-23 马鞍山杰生半导体有限公司 紫外发光装置

Also Published As

Publication number Publication date
JP2021044505A (ja) 2021-03-18
JP7211311B2 (ja) 2023-01-24

Similar Documents

Publication Publication Date Title
WO2021049291A1 (fr) Dispositif d'irradiation de lumière ultraviolette
KR102305234B1 (ko) 광원 유닛
US11171269B2 (en) Light emitting device
JP5300707B2 (ja) 照明装置
JP5073865B2 (ja) 電球型の照明装置
JP2010033757A (ja) 照明ユニット
KR20140130884A (ko) 광 반도체 조명장치
US10655839B2 (en) Light source unit
KR102660609B1 (ko) 디스플레이 장치
KR20200045247A (ko) 살균 유닛 및 이를 갖는 살균 장치
KR20200039421A (ko) 광원 유닛 및 이를 갖는 살균 장치
KR20200089179A (ko) 광원 유닛 및 이를 갖는 살균 장치
KR20200120259A (ko) 살균 유닛
JP7461599B2 (ja) 発光装置
US8593041B1 (en) Backlight module and heatsink apparatus
KR20200042824A (ko) 광원 유닛 및 이를 갖는 살균 장치
JP5583834B2 (ja) 照明装置
JP5906296B2 (ja) 電球型の照明装置
KR20200052184A (ko) 살균 유닛 및 이를 갖는 살균 장치
WO2023042862A1 (fr) Appareil d'irradiation par rayons ultraviolets
JP5620595B2 (ja) 電球型の照明装置
JP2023078423A (ja) 流体殺菌装置
KR20240109682A (ko) 발광장치
KR20200034409A (ko) 살균 모듈 및 이를 포함하는 정수기
KR20200034412A (ko) 살균 유닛 및 이를 포함하는 용기

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20864027

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20864027

Country of ref document: EP

Kind code of ref document: A1