JP7445903B2

JP7445903B2 - lighting equipment

Info

Publication number: JP7445903B2
Application number: JP2022124442A
Authority: JP
Inventors: 和広吉岡; 智士黒田
Original assignee: 東西電工株式会社
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2024-03-08
Anticipated expiration: 2042-08-04
Also published as: JP2024021549A

Description

本発明は照明装置に関するものである。 The present invention relates to a lighting device.

健康志向の高まりは照明器具へも広がっており、様々な効能を付加された照明装置の研究が進んでいる。その一つとして空間除菌能力を有する照明装置がある。 The rise in health consciousness is also spreading to lighting equipment, and research into lighting equipment with various added effects is progressing. One of them is a lighting device that has space sterilization ability.

空間除菌は除菌装置を室内に設置して行うことが一般的である。除菌能力を維持するために清掃や材料補充などの定期メンテナンスが必要なものも多く維持費用が掛かる。また床面や卓上に設置されるため室内の障害物の状況により十分な効果が得られない場合がある。室内全体において効果を得るためにファンモ－タ－等の攪拌機能を有する場合、騒音や信頼性の問題がある。 Space sterilization is generally performed by installing a sterilization device indoors. Many devices require periodic maintenance such as cleaning and replenishment of materials to maintain their sterilizing ability, resulting in high maintenance costs. Furthermore, since it is installed on the floor or tabletop, sufficient effects may not be obtained depending on the situation of indoor obstacles. When a stirring function such as a fan motor is used to obtain an effect throughout the room, there are problems with noise and reliability.

オゾンや次亜塩素酸を利用する場合、装置近傍における各濃度値が高くなる。また、オゾン発生に紫外線を利用する場合もある。これらにより、ペットや幼児への影響が危惧される。 When using ozone or hypochlorous acid, each concentration value near the device becomes high. In some cases, ultraviolet light is also used to generate ozone. There are concerns that these may have an impact on pets and young children.

前記問題点を解決するため、オゾン発生部と照明部５を有し、オゾン発生部はオゾン発生源と循環口７、８とオゾン通路１１を有する照明装置を提案する。また、オゾン発生源として紫外線ランプを用いる場合はオゾン発生部に紫外線減衰板４を設けることが望ましい。 In order to solve the above-mentioned problems, a lighting device is proposed which has an ozone generation part and a lighting part 5, and the ozone generation part has an ozone generation source, circulation ports 7 and 8, and an ozone passage 11. Further, when an ultraviolet lamp is used as an ozone generation source, it is desirable to provide an ultraviolet attenuation plate 4 in the ozone generation section.

本発明により、安全かつ効率的に室内全体の空間除菌が可能となる照明装置が実現できる。 According to the present invention, it is possible to realize a lighting device that can safely and efficiently sterilize the entire indoor space.

本発明の一実施例を示す照明装置の構成図A configuration diagram of a lighting device showing an embodiment of the present invention 本発明の一実施例を示す照明装置の断面図A sectional view of a lighting device showing an embodiment of the present invention 本発明の一実施例を示す紫外線ランプケ－スの構成図A configuration diagram of an ultraviolet lamp case showing an embodiment of the present invention 本発明の一本発明の実施例におけるオゾン生成と紫外線経路図Ozone generation and ultraviolet ray path diagram in one embodiment of the present invention 本発明の一実施例におけるオゾン性能評価結果Ozone performance evaluation results in one embodiment of the present invention 本発明の一実施例におけるオゾン性能評価条件Ozone performance evaluation conditions in one embodiment of the present invention 一般的な人体に影響を与えないとされる紫外線被ばく量と被ばく時間の関係Relationship between UV exposure amount and exposure time, which is said to have no effect on the general human body

以下、図面に基づき本発明の実施の形態を説明する。 Embodiments of the present invention will be described below based on the drawings.

図１は、本発明の一実施例を示すオゾン発生機能を付加した照明装置であり、図２は図１に示す照明装置の断面図である。 FIG. 1 shows an illumination device with an ozone generation function, which shows one embodiment of the present invention, and FIG. 2 is a sectional view of the illumination device shown in FIG. 1.

紫外線ランプ２はオゾンを発生させる波長を有するものであり照明装置１の内部において紫外線ランプ２より発生する紫外線１２によりオゾンを発生させる。なお、紫外線ランプ２は１８５ｎｍと２５３．７ｎｍの波長もしくは１８５ｎｍの波長のみを有するものが好ましい。 The ultraviolet lamp 2 has a wavelength that generates ozone, and the ultraviolet ray 12 generated by the ultraviolet lamp 2 inside the lighting device 1 generates ozone. Note that the ultraviolet lamp 2 preferably has wavelengths of 185 nm and 253.7 nm, or only a wavelength of 185 nm.

図３は本発明の一実施例を示す紫外線ランプケ－スの構成図である。また図４は本発明の実施例におけるオゾン生成と紫外線経路図である。紫外線ラ
ンプ２で発生した紫外線１２は紫外線ランプケ－ス９に設けられた紫外線照
射口１０を通りオゾン通路１１内部に照射され、オゾン通路１１内部において底面循環口７及び側面循環口８の一部より供給された酸素１３からオゾン１４を生成する。生成されたオゾンは底面循環口７及び側面循環口８の一部より照明装置１の外部へ放出される。室内の酸素１３と照明装置１の内部で発生したオゾン１４の循環量は底面循環口７及び側面循環口８の位置及び開口面積、オゾン通路１１の断面積により決定される。 FIG. 3 is a block diagram of an ultraviolet lamp case showing one embodiment of the present invention. Further, FIG. 4 is a diagram showing ozone generation and ultraviolet ray path in an embodiment of the present invention. The ultraviolet rays 12 generated by the ultraviolet lamp 2 pass through the ultraviolet ray irradiation port 10 provided in the ultraviolet lamp case 9, and are irradiated into the ozone passage 11. Ozone 14 is generated from the supplied oxygen 13. The generated ozone is released to the outside of the lighting device 1 through a portion of the bottom circulation port 7 and the side circulation port 8. The circulation amount of the indoor oxygen 13 and the ozone 14 generated inside the lighting device 1 is determined by the positions and opening areas of the bottom circulation port 7 and the side circulation port 8, and the cross-sectional area of the ozone passage 11.

図４に示すように紫外線１２も循環口から室内に照射される可能性があることから循環口７、８の開口面積は小さい方が好ましい。図１の照明装置を４５ｍ^３の室内の天井面に設置し、底面循環口７及び側面循環口８の開口面積を変化させ室内の平均オゾン濃度を測定した結果、図５に示すように照明装置１における底面循環口７及び側面循環口８の開口面積の違いにより室内のオゾン濃度に大きな差が確認された。オゾン濃度は図６に示す（１）から（４）の測定点において株式会社ガステック製の気体採取器ＧＶ－１００と検知管オゾン１８Ｌを使用して測定を行った。 As shown in FIG. 4, since ultraviolet rays 12 may also be irradiated into the room from the circulation ports, it is preferable that the opening areas of the circulation ports 7 and 8 be small. The lighting device shown in Figure 1 was installed on the ceiling of a ^45m3 room, and the average ozone concentration in the room was measured by changing the opening areas of the bottom circulation port 7 and the side circulation port 8. As a result, the lighting device as shown in Fig. 5 It was confirmed that there was a large difference in the indoor ozone concentration due to the difference in the opening area of the bottom circulation port 7 and the side circulation port 8 in No. 1. The ozone concentration was measured at measurement points (1) to (4) shown in FIG. 6 using a gas sampler GV-100 manufactured by Gastech Co., Ltd. and an ozone 18L detector tube.

これより側面循環口８の開口面積を増加させても照明装置１から排出されるオゾン量の増加は限定的であり、底面循環口７だけでは照明装置１から室内空間にオゾンを排出させることができなかった。しかし、底面循環口７と側面循環口８を併設することで効率良く室内にオゾンが排出されることが確認された。これより、循環口の面積を小さくするためには、底面循環口７と側面循環口８の併設が効果的であると言える。なお、本実施例において、側面循環口３２個の場合よりも側面循環口１０個、底面循環口２個の場合の方が室内の平均オゾン濃度を約１．４倍以上にすることができ、側面循環口と底面循環口の併設によって循環口の開口面積を小さくすることが可能となった。 From this, even if the opening area of the side circulation port 8 is increased, the increase in the amount of ozone discharged from the lighting device 1 is limited, and the bottom circulation port 7 alone cannot discharge ozone from the lighting device 1 into the indoor space. could not. However, it has been confirmed that by providing the bottom circulation port 7 and the side circulation port 8 together, ozone can be efficiently discharged into the room. From this, it can be said that in order to reduce the area of the circulation port, it is effective to provide the bottom circulation port 7 and the side circulation port 8 together. In addition, in this example, the average indoor ozone concentration can be made approximately 1.4 times or more when there are 10 side circulation ports and 2 bottom circulation ports compared to when there are 32 side circulation ports. By installing side circulation ports and bottom circulation ports, it is possible to reduce the opening area of the circulation ports.

医学関係の報告書などによればウイルスを不活化させるためには０．０２
５から０．０５ｐｐｍのオゾン濃度であれば良いとされている。本実施例で
は底面循環口７は５ｍｍ×４２ｍｍの長孔を４５ｍｍ間隔で２個、側面循環
口８は５ｍｍ×３０ｍｍの長孔を１０ｍｍ間隔で１０個を器具の４か所に設けることで０．０５ｐｐｍのオゾン濃度を達成できた。なお底面循環口７と側面循環口８の形状、位置、個数の組み合わせは照明装置の形態により異なる。 According to medical reports, 0.02 to inactivate the virus.
It is said that an ozone concentration of 5 to 0.05 ppm is sufficient. In this embodiment, the bottom circulation port 7 has two 5 mm x 42 mm long holes spaced apart at 45 mm intervals, and the side circulation port 8 has 10 5 mm x 30 mm long holes spaced at 10 mm intervals at four locations on the device. An ozone concentration of .05 ppm was achieved. Note that the combination of shape, position, and number of the bottom circulation port 7 and the side circulation port 8 differs depending on the form of the lighting device.

照明装置１から室内に照射される紫外線１２は人体に無害なレベルに抑える必要がある。人体への影響としては米国労働衛生専門官会議で定められた安全規格値を基準として考えることとし、これによる紫外線被ばく量と被ばく時間の関係を図７に示す。図１及び図４における紫外線減衰板４が無い場合の循環口における紫外線強度は１．４μＷ／ｃｍ^２であり３０分の使用で人体への影響があると判断される。効率良く紫外線強度を人体に無害なレベルに抑えるために紫外線減衰板４が必要となる。十分な減衰率を得るためには黒色材料を用いることが望ましいが、連続してオゾン１４と紫外線１２に暴露されるため使用に適した材料の選定には注意が必要である。本実施例では黒アルマイト処理を施したアルミ材料を用いた。その結果、黒アルマイト処理を施したアルミ板の紫外線減衰板４を使用した場合の循環口における紫外線強度は０．００３μＷ／ｃｍ^２となり人体への影響は無いといえる。 The ultraviolet rays 12 emitted from the lighting device 1 into the room must be suppressed to a level that is harmless to the human body. The effects on the human body will be considered based on the safety standard values established by the U.S. Conference of Occupational Health Officials, and the relationship between the amount of ultraviolet radiation exposure and exposure time is shown in Figure 7. The intensity of ultraviolet rays at the circulation port in the absence of the ultraviolet attenuation plate 4 in FIGS. 1 and 4 is 1.4 μW/cm ² , and it is determined that 30 minutes of use will have an effect on the human body. The ultraviolet attenuation plate 4 is required to efficiently suppress the intensity of ultraviolet rays to a level that is harmless to the human body. Although it is desirable to use a black material in order to obtain a sufficient attenuation rate, care must be taken in selecting the appropriate material for use since it will be continuously exposed to ozone 14 and ultraviolet rays 12. In this example, an aluminum material subjected to black alumite treatment was used. As a result, when using the ultraviolet attenuating plate 4 made of an aluminum plate treated with black alumite, the intensity of ultraviolet rays at the circulation port was 0.003 μW/cm ² , which can be said to have no effect on the human body.

本実施例の構成により照明装置１から照射される紫外線強度を人体に無害なレベルに抑え、且つ空間除菌に必要なオゾン濃度を確保することが実現できることが実現できる。 With the configuration of this embodiment, it is possible to suppress the intensity of ultraviolet rays emitted from the lighting device 1 to a level that is harmless to the human body, and to ensure the ozone concentration necessary for space sterilization.

１・・・照明装置
２・・・紫外線ランプ
３・・・紫外線ランプ制御装置
４・・・紫外線減衰板
５・・・照明部
６・・・照明制御装置
７・・・底面循環口
８・・・側面循環口
９・・・紫外線ランプケース
１０・・・紫外線照射口
１１・・・オゾン通路
１２・・・紫外線
１３・・・酸素
１４・・・オゾン
１５・・・測定空間
1... Lighting device 2... Ultraviolet lamp 3... Ultraviolet lamp control device 4... Ultraviolet attenuation plate 5... Lighting section 6... Lighting control device 7... Bottom circulation port 8...・Side circulation port 9...UV lamp case 10...UV irradiation port 11...Ozone passage 12...UV 13...Oxygen 14...Ozone 15...Measurement space

Claims

It has an ozone generation section and a lighting section, and the ozone generation section is composed of an ultraviolet generation source, a circulation port, and an ozone passage, and the ozone is generated in the ozone passage by the ultraviolet rays generated by the ultraviolet generation source, and the ozone is emitted from the circulation opening to the outside. The lighting device is configured to discharge ozone at a time, and the ozone passage is provided with an ultraviolet attenuating plate for attenuating ultraviolet rays emitted from the ultraviolet light generation source.

2. The lighting device according to claim 1, wherein the ultraviolet radiation source has an ultraviolet lamp case, and the ultraviolet lamp case is provided with a plurality of slits as ultraviolet irradiation ports.