JP6863135B2 - Fluid sterilizer - Google Patents

Fluid sterilizer Download PDF

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JP6863135B2
JP6863135B2 JP2017127964A JP2017127964A JP6863135B2 JP 6863135 B2 JP6863135 B2 JP 6863135B2 JP 2017127964 A JP2017127964 A JP 2017127964A JP 2017127964 A JP2017127964 A JP 2017127964A JP 6863135 B2 JP6863135 B2 JP 6863135B2
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flow path
light source
fluid
flow
path
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JP2019010609A (en
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貴章 田中
貴章 田中
亮彦 田内
亮彦 田内
剛雄 加藤
剛雄 加藤
純 藤岡
純 藤岡
弘喜 日野
弘喜 日野
公人 櫻井
公人 櫻井
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Toshiba Lighting and Technology Corp
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Priority to TW107108524A priority patent/TWI753132B/en
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Description

本発明の実施形態は、流体殺菌装置に関する。 Embodiments of the present invention relate to a fluid sterilizer.

光源の発光素子が発する紫外線を、例えば、水、気体等の流体が流れる流路部材の流路内へ照射することで、流体を殺菌する流体殺菌装置が知られている。 A fluid sterilizer that sterilizes a fluid by irradiating the flow path of a flow path member through which a fluid such as water or gas flows with ultraviolet rays emitted by a light emitting element of a light source is known.

特開２０１４−２３３６４６号公報Japanese Unexamined Patent Publication No. 2014-233646

流体殺菌装置としては、流路部材の流路内へ紫外線を照射する光源が、流路部材の一端に設けられており、光源が、流路部材の、流体の流れ方向に直交する流路断面に対向して配置された構成が提案されている。このような流体殺菌装置では、紫外線が照射される流路を有する流路部材の両端が、流路部材の上流側流路及び下流側流路と接続部材を介してそれぞれ連結されている。一方の接続部材の内部には、光源が設けられており、光源の周囲に沿って流れる流路が形成されている。 As the fluid sterilizer, a light source for irradiating the flow path of the flow path member with ultraviolet rays is provided at one end of the flow path member, and the light source is a flow path cross section of the flow path member orthogonal to the flow direction of the fluid. A configuration is proposed in which the components are arranged to face each other. In such a fluid sterilizer, both ends of a flow path member having a flow path irradiated with ultraviolet rays are connected to the upstream side flow path and the downstream side flow path of the flow path member via a connecting member, respectively. A light source is provided inside one of the connecting members, and a flow path that flows along the periphery of the light source is formed.

上述の流体殺菌装置が有する接続部材の内部には、発光素子を収容する収容凹部が設けられており、収容凹部の開口が、紫外線透過性を有するカバー部材で塞がれている。これにより、光源の発光素子は、光源の周囲を流れる流体から保護されている。そのため、収容凹部内に配置された発光素子が発する光のうち、カバー部材の外周部側へ入射した光は、収容凹部の内壁で遮られてしまい、流路部材の流路内へ到達せず、流体に対する紫外線の照射効率を低下させている。 Inside the connecting member of the above-mentioned fluid sterilizer, a housing recess for accommodating the light emitting element is provided, and the opening of the housing recess is closed with a cover member having ultraviolet light transmission. As a result, the light emitting element of the light source is protected from the fluid flowing around the light source. Therefore, among the light emitted by the light emitting element arranged in the accommodating recess, the light incident on the outer peripheral side of the cover member is blocked by the inner wall of the accommodating recess and does not reach the inside of the flow path of the flow path member. , The efficiency of irradiating the fluid with ultraviolet rays is reduced.

そこで、本発明は、流路内の流体に対する紫外線の照射効率を高めることができる流体殺菌装置を提供することを目的とする。 Therefore, an object of the present invention is to provide a fluid sterilizer capable of increasing the irradiation efficiency of ultraviolet rays on a fluid in a flow path.

実施形態に係る流体殺菌装置は、流体を流すための第１の流路を有する流路部材と、前記第１の流路の、前記流体の流れ方向に交差する流路断面に対向して配置され、前記第１の流路内へ紫外線を照射する発光素子を有する光源と、前記流路部材の一端に接続されると共に前記光源が設けられ、前記光源の周囲に配置されて前記第１の流路に連通する第２の流路と、前記発光素子を支持する支持部と、を有する接続部材と、前記光源を流体から保護するカバー部材と、を具備し、前記光源は、前記発光素子が載置される載置面を有し、前記載置面が前記第１の流路内に位置し、前記カバー部材は、前記載置面に沿う方向から見たときに、前記光源の最大出射角の境界線に沿って進む紫外線を透過させる。 The fluid sterilizer according to the embodiment is arranged so as to face a flow path member having a first flow path for flowing a fluid and a flow path cross section of the first flow path that intersects the flow direction of the fluid. A light source having a light emitting element that irradiates ultraviolet rays into the first flow path, and the light source connected to one end of the flow path member and provided around the light source are arranged around the first flow path. A connecting member having a second flow path communicating with the flow path, a support portion for supporting the light emitting element, and a cover member for protecting the light source from fluid are provided, and the light source is the light source. The cover member has a mounting surface on which the light source is mounted, the previously described mounting surface is located in the first flow path, and the cover member is the maximum of the light source when viewed from a direction along the previously described mounting surface. It transmits ultraviolet rays that travel along the boundary of the emission angle.

本発明によれば、流路内の流体に対する紫外線の照射効率を高めることができる。 According to the present invention, it is possible to increase the efficiency of irradiating the fluid in the flow path with ultraviolet rays.

第１の実施形態に係る流体殺菌装置全体を示す模式図である。It is a schematic diagram which shows the whole fluid sterilizer which concerns on 1st Embodiment. 第１の実施形態に係る流体殺菌装置の要部を示す断面図である。It is sectional drawing which shows the main part of the fluid sterilizer which concerns on 1st Embodiment. 第１の実施形態に係る流体殺菌装置が有する光源部を拡大して示す断面図である。It is sectional drawing which enlarges and shows the light source part which the fluid sterilizer which concerns on 1st Embodiment has. 第１の実施形態に係る流体殺菌装置が有する発光素子と反射膜の反射面との位置関係を説明するための模式図である。It is a schematic diagram for demonstrating the positional relationship between the light emitting element of the fluid sterilizer which concerns on 1st Embodiment, and the reflective surface of a reflective film. 第１の実施形態に係る流体殺菌装置の要部において流路部材を流体が流れる方向を示す断面図である。It is sectional drawing which shows the direction which the fluid flows through the flow path member in the main part of the fluid sterilizer which concerns on 1st Embodiment. 第１の実施形態に係る流体殺菌装置の要部において、流路部材を流体が流れる方向に直交するＩ−Ｉ断面をＡ方向から見た断面図である。FIG. 5 is a cross-sectional view of an I-I cross section orthogonal to a fluid flow direction in a main part of a fluid sterilizer according to a first embodiment, as viewed from the A direction. 第１の実施形態に係る流体殺菌装置の要部において、流路部材を流体が流れる方向に直交するＩ−Ｉ断面をＢ方向から見た断面図である。FIG. 5 is a cross-sectional view of an I-I cross section orthogonal to a fluid flow direction in a main part of a fluid sterilizer according to a first embodiment, as viewed from the B direction. 第１の実施形態に係る流体殺菌装置が有するカバー部材の変形例を示す模式図である。It is a schematic diagram which shows the modification of the cover member which the fluid sterilizer which concerns on 1st Embodiment has. 第２の実施形態に係る流体殺菌装置の要部を示す断面図である。It is sectional drawing which shows the main part of the fluid sterilizer which concerns on 2nd Embodiment. 第３の実施形態に係る流体殺菌装置の要部を示す断面図である。It is sectional drawing which shows the main part of the fluid sterilizer which concerns on 3rd Embodiment. 第４の実施形態に係る流体殺菌装置の要部を示す断面図である。It is sectional drawing which shows the main part of the fluid sterilizer which concerns on 4th Embodiment. 第５の実施形態に係る流体殺菌装置の要部を示す断面図である。It is sectional drawing which shows the main part of the fluid sterilizer which concerns on 5th Embodiment.

以下で説明する実施形態に係る流体殺菌装置は、流路部材と、光源と、接続部材と、カバー部材と、を備える。流路部材は、流体を流すための第１の流路を有する。光源は、第１の流路の、流体の流れ方向に交差する流路断面に対向して配置されている。光源は、第１の流路内へ紫外線を照射する発光素子を有する。接続部材は、流路部材の一端に接続されると共に光源が設けられている。接続部材は、第２の流路と、支持部と、を有する。第２の流路は、光源の周囲に配置されている。第２の流路は、第１の流路に連通する。支持部は、発光素子を支持する。カバー部材は、光源を流体から保護する。光源は、発光素子が載置される載置面を有する。載置面は、第１の流路内に位置している。カバー部材は、載置面に沿う方向から見たときに、光源の最大出射角の境界線に沿って進む紫外線を透過させる。 The fluid sterilizer according to the embodiment described below includes a flow path member, a light source, a connecting member, and a cover member. The flow path member has a first flow path for flowing a fluid. The light source is arranged so as to face the cross section of the first flow path that intersects the flow direction of the fluid. The light source has a light emitting element that irradiates ultraviolet rays into the first flow path. The connecting member is connected to one end of the flow path member and is provided with a light source. The connecting member has a second flow path and a support portion. The second flow path is arranged around the light source. The second flow path communicates with the first flow path. The support portion supports the light emitting element. The cover member protects the light source from fluid. The light source has a mounting surface on which the light emitting element is mounted. The mounting surface is located in the first flow path. The cover member transmits ultraviolet rays traveling along the boundary line of the maximum emission angle of the light source when viewed from the direction along the mounting surface.

また、以下で説明する実施形態に係る流体殺菌装置における流路部材の外周面には、反射面が設けられている。反射面は、発光素子が第１の流路内へ照射する紫外線を、第１の流路内へ反射する。載置面に沿う方向から見たときに、反射面は、流路部材の外周面に沿って、光源の最大出射角の境界線と第１の流路の内面とが交差する位置よりも、光源側へ延びている。 Further, a reflective surface is provided on the outer peripheral surface of the flow path member in the fluid sterilizer according to the embodiment described below. The reflecting surface reflects the ultraviolet rays that the light emitting element irradiates into the first flow path into the first flow path. When viewed from the direction along the mounting surface, the reflective surface is located along the outer peripheral surface of the flow path member rather than the position where the boundary line of the maximum emission angle of the light source and the inner surface of the first flow path intersect. It extends to the light source side.

また、以下で説明する実施形態に係る流体殺菌装置における第２の流路は、連結路を有する。連結路は、第１の流路の一端に連結されている。連結路の流れ方向は、第１の流路の流れ方向に対して鈍角をなして傾斜している。 In addition, the second flow path in the fluid sterilizer according to the embodiment described below has a connecting path. The connecting path is connected to one end of the first flow path. The flow direction of the connecting path is obtuse with respect to the flow direction of the first flow path.

また、以下で説明する実施形態に係る流体殺菌装置における第２の流路は、連結路を有する。連結路は、第１の流路の一端に連結されている。連結路の流れ方向は、第１の流路の流れ方向と等しい。 In addition, the second flow path in the fluid sterilizer according to the embodiment described below has a connecting path. The connecting path is connected to one end of the first flow path. The flow direction of the connecting path is equal to the flow direction of the first flow path.

以下、実施形態に係る流体殺菌装置について、図面を参照して説明する。なお、以下の実施形態は、一例を示すものであって、発明を限定するものではない。 Hereinafter, the fluid sterilizer according to the embodiment will be described with reference to the drawings. The following embodiments show an example and do not limit the invention.

（第１の実施形態）
図１は、第１の実施形態に係る流体殺菌装置全体を示す模式図である。図２は、第１の実施形態に係る流体殺菌装置の要部を示す断面図である。図３は、第１の実施形態に係る流体殺菌装置が有する光源部を拡大して示す断面図である。図４は、第１の実施形態に係る流体殺菌装置が有する発光素子と反射膜の反射面との位置関係を説明するための模式図である。図５は、第１の実施形態に係る流体殺菌装置の要部において流路部材を流体が流れる方向を示す断面図である。 (First Embodiment)
FIG. 1 is a schematic view showing the entire fluid sterilizer according to the first embodiment. FIG. 2 is a cross-sectional view showing a main part of the fluid sterilizer according to the first embodiment. FIG. 3 is an enlarged cross-sectional view showing a light source portion included in the fluid sterilizer according to the first embodiment. FIG. 4 is a schematic view for explaining the positional relationship between the light emitting element of the fluid sterilizer according to the first embodiment and the reflective surface of the reflective film. FIG. 5 is a cross-sectional view showing the direction in which the fluid flows through the flow path member in the main part of the fluid sterilizer according to the first embodiment.

（流体殺菌装置の構成）
図１に示すように、第１の実施形態の流体殺菌装置１は、紫外線（紫外光）を照射する流体を流すための流路部材１３が、流体を供給する給水タンク６に連結されると共に、紫外線が照射された流体を回収する回収タンク７に連結されている。図１及び図２に示すように、流体殺菌装置１は、流路部材１３の上流側が、上流側流路部材８を介して給水タンク６に連結されている。上流側流路部材８には、給水タンク６から流体殺菌装置１へ流体を送るポンプ１１が設けられている。また、流体殺菌装置１は、流路部材１３の上流側と同様に、流路部材１３の下流側が、下流側流路部材９を介して回収タンク７に連結されている。下流側流路部材９には、流体殺菌装置１から回収タンク７へ送る流体の流量を調整する流量調整機構１２が設けられている。 (Configuration of fluid sterilizer)
As shown in FIG. 1, in the fluid sterilizer 1 of the first embodiment, a flow path member 13 for flowing a fluid to be irradiated with ultraviolet rays (ultraviolet light) is connected to a water supply tank 6 for supplying the fluid, and at the same time. , It is connected to a recovery tank 7 that recovers the fluid irradiated with ultraviolet rays. As shown in FIGS. 1 and 2, in the fluid sterilizer 1, the upstream side of the flow path member 13 is connected to the water supply tank 6 via the upstream side flow path member 8. The upstream side flow path member 8 is provided with a pump 11 that sends a fluid from the water supply tank 6 to the fluid sterilizer 1. Further, in the fluid sterilizer 1, the downstream side of the flow path member 13 is connected to the recovery tank 7 via the downstream side flow path member 9, similarly to the upstream side of the flow path member 13. The downstream flow path member 9 is provided with a flow rate adjusting mechanism 12 for adjusting the flow rate of the fluid sent from the fluid sterilizer 1 to the recovery tank 7.

流体殺菌装置１は、例えば、飲料水供給装置において、給水タンク６内の水を殺菌処理するために用いられる。本実施形態では、流体として、例えば、上水等の水に適用されるが、気体に適用されてもよい。 The fluid sterilizer 1 is used, for example, in a drinking water supply device for sterilizing the water in the water supply tank 6. In the present embodiment, the fluid is applied to water such as clean water, but may be applied to a gas.

図２に示すように、流体殺菌装置１は、流体を流すための第１の流路としての流路１３ａを有する流路部材１３と、流路部材１３の流路１３ａ内へ紫外線を照射する発光素子としてのＬＥＤ（Light Emitting Diode）２３を有する光源部１５と、を備える。また、流体殺菌装置１は、流路部材１３の一端に接続された第１の接続部材１７と、流路部材１３の他端に接続された第２の接続部材１８と、第１の接続部材１７と第２の接続部材１８とを連結する連結部材１９と、を備える。 As shown in FIG. 2, the fluid sterilizer 1 irradiates the flow path member 13 having the flow path 13a as the first flow path for flowing the fluid and the flow path 13a of the flow path member 13 with ultraviolet rays. A light source unit 15 having an LED (Light Emitting Diode) 23 as a light emitting element is provided. Further, the fluid sterilizer 1 includes a first connecting member 17 connected to one end of the flow path member 13, a second connecting member 18 connected to the other end of the flow path member 13, and a first connecting member. A connecting member 19 for connecting the 17 and the second connecting member 18 is provided.

流路部材１３は、紫外線反射率が高く、紫外線による劣化が抑えられた材料で形成されることが好ましい。本実施形態では、流路部材１３として、透明な石英管が用いられており、石英管の外周面全体に、紫外線反射率が高い反射面としての反射膜１３ｂが形成されたものを用いる。反射膜１３ｂは、光源部１５のＬＥＤ２３が流路１３ａ内へ照射する紫外線を流路１３ａ内へ反射する反射面の一例であり、例えばシリカ膜が用いられている。 The flow path member 13 is preferably made of a material having high ultraviolet reflectance and suppressed deterioration due to ultraviolet rays. In the present embodiment, a transparent quartz tube is used as the flow path member 13, and a reflective film 13b as a reflecting surface having high ultraviolet reflectance is formed on the entire outer peripheral surface of the quartz tube. The reflective film 13b is an example of a reflective surface in which the LED 23 of the light source unit 15 reflects the ultraviolet rays radiated into the flow path 13a into the flow path 13a, and for example, a silica film is used.

なお、流路部材１３に形成される反射膜１３ｂは、シリカ膜に限らず、アルミニウム蒸着膜であってもよい。また、流路部材１３は、透明な石英管に限らず、高反射率のポリテトラフルオロエチレン（polytetrafluoroethylene：ＰＴＦＥ、テトラフルオロエチレンの重合体）等のフッ素樹脂であってもよい。また、反射膜１３ｂは、流路部材１３の外周面に形成する代わりに、流路部材１３の内周面に形成されてもよい。 The reflective film 13b formed on the flow path member 13 is not limited to the silica film, and may be an aluminum-deposited film. Further, the flow path member 13 is not limited to a transparent quartz tube, and may be a fluororesin such as polytetrafluoroethylene (PTFE, a polymer of tetrafluoroethylene) having a high reflectance. Further, the reflective film 13b may be formed on the inner peripheral surface of the flow path member 13 instead of being formed on the outer peripheral surface of the flow path member 13.

図３に示すように、光源部１５は、第１の接続部材１７の内部に設けられている。光源部１５は、光源１６と、光源１６を流体から保護するカバー部材２１と、を有する。光源１６は、流路部材１３の一端側において、流路１３ａの、流体の流れ方向に直交する流路断面（以下、流路１３ａの流路断面と称する。）に対向して配置されている。また、光源部１５の光源１６は、第１の接続部材１７が有する後述の光源支持部１７ｂ−３に配置されている。 As shown in FIG. 3, the light source unit 15 is provided inside the first connecting member 17. The light source unit 15 includes a light source 16 and a cover member 21 that protects the light source 16 from a fluid. The light source 16 is arranged on one end side of the flow path member 13 so as to face the flow path cross section of the flow path 13a orthogonal to the flow direction of the fluid (hereinafter, referred to as the flow path cross section of the flow path 13a). .. Further, the light source 16 of the light source unit 15 is arranged in the light source support unit 17b-3 described later, which is included in the first connecting member 17.

光源１６は、光モジュールであって、紫外線を発する発光素子としてのＬＥＤ２３と、ＬＥＤ２３が実装された基板２４と、を有する。基板２４は、金属材料を母材として形成されており、ＬＥＤ２３が載置される載置面としての実装面２４ａを有する。基板２４の実装面２４ａ上には、図示しないが、絶縁層を介して所望の導電パターン（配線パターン）が形成されており、導電パターン上にＬＥＤ２３が設けられている。なお、基板２４の母材は、金属材料に限らず、例えばアルミナ等のセラミックスが用いられてもよい。また、光源１６が有する発光素子は、ＬＥＤ２３に限らず、ＬＤ（Laser Diode）等の他の半導体素子が用いられてもよい。 The light source 16 is an optical module and includes an LED 23 as a light emitting element that emits ultraviolet rays, and a substrate 24 on which the LED 23 is mounted. The substrate 24 is formed of a metal material as a base material, and has a mounting surface 24a as a mounting surface on which the LED 23 is mounted. Although not shown, a desired conductive pattern (wiring pattern) is formed on the mounting surface 24a of the substrate 24 via an insulating layer, and the LED 23 is provided on the conductive pattern. The base material of the substrate 24 is not limited to a metal material, and ceramics such as alumina may be used. Further, the light emitting element included in the light source 16 is not limited to the LED 23, and other semiconductor elements such as LD (Laser Diode) may be used.

光源１６は、図示しない電源から電力が供給され、ＬＥＤ２３を発光させる。光源１６は、ＬＥＤ２３の発光面が、流路１３ａの流路断面に対向しており、例えば、光源１６の基板２４の主面が流路１３ａの流れ方向に対して略垂直となるように配置されている。ここで、「ＬＥＤ２３の発光面」とは、単にＬＥＤ２３の発光領域のみを示しているのではなく、ＬＥＤ２３が配置された基板２４の主面全体を指している。また、「ＬＥＤ２３の発光面が、流路１３ａの流路断面に対向する」向きは、互いに平行に対向する向きのみに限定されるものではない。例えば、ＬＥＤ２３の発光面と、流路１３ａの流路断面とがなす角度（鋭角）は±１０°程度まで許容される。 The light source 16 is supplied with electric power from a power source (not shown) to cause the LED 23 to emit light. The light source 16 is arranged so that the light emitting surface of the LED 23 faces the cross section of the flow path 13a, and for example, the main surface of the substrate 24 of the light source 16 is substantially perpendicular to the flow direction of the flow path 13a. Has been done. Here, the "light emitting surface of the LED 23" does not simply indicate only the light emitting region of the LED 23, but refers to the entire main surface of the substrate 24 on which the LED 23 is arranged. Further, the direction in which the light emitting surface of the LED 23 faces the cross section of the flow path 13a is not limited to the direction in which the light emitting surface of the LED 23 faces parallel to each other. For example, the angle (acute angle) formed by the light emitting surface of the LED 23 and the cross section of the flow path 13a is allowed up to about ± 10 °.

また、ＬＥＤ２３としては、殺菌作用が比較的高い波長２７５ｎｍ近辺にピーク波長を有するものが好ましいが、殺菌作用を奏する波長帯域であればよく、紫外線の波長を限定するものではない。 Further, the LED 23 preferably has a peak wavelength in the vicinity of a wavelength of 275 nm, which has a relatively high bactericidal action, but may be in a wavelength band that exerts a bactericidal action, and does not limit the wavelength of ultraviolet rays.

光源部１５のカバー部材２１は、例えば、ガラス材によって形成された紫外線透過部材であり、ＬＥＤ２３及び基板２４を覆って配置されている。カバー部材２１の外周部は、基板２４の側面側を覆うように延ばされている。カバー部材２１は、第１の接続部材１７が有する後述の光源支持部１７ｂ−３に固定されており、光源部１５の内部が気密に閉じられている。カバー部材２１は、ＬＥＤ２３が発した紫外線を透過し、流路１３ａ内を流れる流体、及び第１の接続部材１７が有する後述の流路１７ａ−１、１７ａ−２を流れる流体に対して紫外線を照射する。なお、実施形態におけるカバー部材２１は、流路１３ａの流路断面に対向する面が、平面として形成されているが、カバー部材２１の周囲を流れる流体の流動抵抗を軽減するように曲面が形成されてもよい。 The cover member 21 of the light source unit 15 is, for example, an ultraviolet ray transmitting member formed of a glass material, and is arranged so as to cover the LED 23 and the substrate 24. The outer peripheral portion of the cover member 21 is extended so as to cover the side surface side of the substrate 24. The cover member 21 is fixed to the light source support portion 17b-3 described later of the first connecting member 17, and the inside of the light source portion 15 is airtightly closed. The cover member 21 transmits the ultraviolet rays emitted by the LED 23 and transmits the ultraviolet rays to the fluid flowing in the flow path 13a and the fluid flowing through the flow paths 17a-1 and 17a-2 described later of the first connecting member 17. Irradiate. In the cover member 21 of the embodiment, the surface of the flow path 13a facing the cross section of the flow path is formed as a flat surface, but a curved surface is formed so as to reduce the flow resistance of the fluid flowing around the cover member 21. May be done.

図３及び図４に示すように、光源部１５は、ＬＥＤ２３が載置される載置面としての基板２４の実装面２４ａが、流路部材１３の流路１３ａ内に位置している。後述するが、第１の接続部材１７が有する光源支持部１７ｂ−３が、第１の接続部材１７側から流路１３ａ内へ突出されていることにより、基板２４の実装面２４ａ上に載置されたＬＥＤ２３全体が、流路１３ａ内に配置されている。このため、ＬＥＤ２３が発する紫外線のうち、特に基板２４の実装面２４ａとなす角度が小さな方向へ沿って進む紫外線であっても、流路１３ａ内へ入射させることが可能となり、ＬＥＤ２３が発する紫外線の利用効率が高められる。 As shown in FIGS. 3 and 4, in the light source unit 15, the mounting surface 24a of the substrate 24 as the mounting surface on which the LED 23 is mounted is located in the flow path 13a of the flow path member 13. As will be described later, the light source support portion 17b-3 included in the first connecting member 17 is placed on the mounting surface 24a of the substrate 24 because it protrudes into the flow path 13a from the first connecting member 17 side. The entire LED 23 is arranged in the flow path 13a. Therefore, among the ultraviolet rays emitted by the LED 23, even if the ultraviolet rays form with the mounting surface 24a of the substrate 24 travel in a direction that is small, the ultraviolet rays can be incident into the flow path 13a, and the ultraviolet rays emitted by the LED 23 can be emitted. Utilization efficiency is improved.

また、ＬＥＤ２３が載置される基板２４の実装面２４ａは、図４に示すように、実装面２４ａに沿う方向（流路１３ａの流れ方向に直交する方向）から見たときに、反射面としての反射膜１３ｂは、流路部材１３の外周面に沿って、光源部１５の最大出射角、本実施形態では、ＬＥＤ２３の半値角θの境界線Ｌと流路１３ａの内面とが交差する位置Ｐよりも、光源１６側へ延びている。これにより、ＬＥＤ２３が発する紫外線のうち、半値角θの境界線Ｌに沿って進む紫外線を、反射膜１３ｂに入射させて、反射膜１３ｂによって流路１３ａ内へ反射させることが可能となり、ＬＥＤ２３が発する紫外線の利用効率が高められる。なお、ＬＥＤ２３としては、例えば、半値角θが１２０°程度のものが用いられている。 Further, as shown in FIG. 4, the mounting surface 24a of the substrate 24 on which the LED 23 is mounted serves as a reflecting surface when viewed from a direction along the mounting surface 24a (a direction orthogonal to the flow direction of the flow path 13a). The reflective film 13b of the above is the maximum emission angle of the light source unit 15 along the outer peripheral surface of the flow path member 13, and in the present embodiment, the position where the boundary line L of the half value angle θ of the LED 23 and the inner surface of the flow path 13a intersect. It extends toward the light source 16 side from P. As a result, among the ultraviolet rays emitted by the LED 23, the ultraviolet rays traveling along the boundary line L of the half-value angle θ can be incident on the reflective film 13b and reflected by the reflective film 13b into the flow path 13a. The utilization efficiency of the emitted ultraviolet rays is improved. As the LED 23, for example, one having a half-value angle θ of about 120 ° is used.

また、本実施形態におけるカバー部材２１は、基板２３の実装面２４ａに沿う方向から見たときに、光源１６の半値角θの境界線Ｌに沿って進む紫外線を透過させる。言い換えると、ＬＥＤ２３の半値角θよりも、光源１６の最大出射角が小さいので、カバー部材２１は、基板２３の実装面２４ａに沿う方向から見たときに、光源１６の最大出射角の境界線に沿って進む紫外線を透過させるとも言える。 Further, the cover member 21 in the present embodiment transmits ultraviolet rays traveling along the boundary line L of the half-value angle θ of the light source 16 when viewed from the direction along the mounting surface 24a of the substrate 23. In other words, since the maximum emission angle of the light source 16 is smaller than the half-value angle θ of the LED 23, the cover member 21 is the boundary line of the maximum emission angle of the light source 16 when viewed from the direction along the mounting surface 24a of the substrate 23. It can also be said that the ultraviolet rays traveling along the line are transmitted.

なお、反射膜１３ｂは、流路部材１３の外周面の全域に亘って形成されることが望ましいが、反射膜１３ｂの成膜時に流路部材１３を保持するための保持代に相当する領域、すなわち、流路部材１３の端部に反射膜１３ｂを形成することが困難である。このため、上述のように、反射膜１３ｂの一端が、位置Ｐよりも光源部１５側へ延ばされることにより、ＬＥＤ２３が発する紫外線が流路１３ａの外側へ漏れ出て損失することが抑えられ、ＬＥＤ２３が発する紫外線の利用効率が高められる。 It is desirable that the reflective film 13b is formed over the entire outer peripheral surface of the flow path member 13, but a region corresponding to a holding allowance for holding the flow path member 13 during film formation of the reflective film 13b. That is, it is difficult to form the reflective film 13b at the end of the flow path member 13. Therefore, as described above, since one end of the reflective film 13b is extended toward the light source portion 15 from the position P, it is possible to prevent the ultraviolet rays emitted by the LED 23 from leaking to the outside of the flow path 13a and being lost. The utilization efficiency of the ultraviolet rays emitted by the LED 23 is enhanced.

ＬＥＤ２３が載置される実装面２４ａは、流路１３ａ内に配置されていればよく、流路１３ａの流れ方向に対する実装面２４ａの向き（姿勢）を限定するものではないが、ＬＥＤ２３の半値角θを踏まえて、ＬＥＤ２３が発する紫外線の利用効率を高める観点では、実装面２４ａが流路１３ａの流路断面と平行に配置されるのが好ましい。 The mounting surface 24a on which the LED 23 is mounted may be arranged in the flow path 13a, and does not limit the orientation (posture) of the mounting surface 24a with respect to the flow direction of the flow path 13a, but is a half-value angle of the LED 23. Based on θ, from the viewpoint of increasing the utilization efficiency of the ultraviolet rays emitted by the LED 23, it is preferable that the mounting surface 24a is arranged parallel to the flow path cross section of the flow path 13a.

また、第１の接続部材１７が有する後述の流路１７ａ−１、１７ａ−２は、光源１６の近傍に位置しているので、必要に応じて、流路１７ａ−１、１７ａ−２の内面に反射膜が設けられてもよい。このような反射膜により、流路１３ａ側から流路１７ａ−１、１７ａ−２内へ入射する紫外線を流路１３ａ内へ反射させることが可能になり、ＬＥＤ２３が発する紫外線の利用効率を高めることが可能になる。 Further, since the flow paths 17a-1 and 17a-2 described later of the first connecting member 17 are located in the vicinity of the light source 16, the inner surfaces of the flow paths 17a-1 and 17a-2 are required. A reflective film may be provided on the surface. With such a reflective film, it becomes possible to reflect the ultraviolet rays incident on the flow paths 17a-1 and 17a-2 from the flow path 13a side into the flow path 13a, and the utilization efficiency of the ultraviolet rays emitted by the LED 23 is enhanced. Becomes possible.

光源１６のＬＥＤ２３から出射された紫外線は、カバー部材２１を透過し、流路１３ａ内を流れる流体に対してＬＥＤ２３からの直射光が照射されると共に、図２及び図３に示す矢印のように、流路１３ａ内において反射膜１３ｂで反射されることで流路１３ａ内を流れる流体に対して反射膜１３ｂからの反射光が間接的に照射される。 The ultraviolet rays emitted from the LED 23 of the light source 16 pass through the cover member 21, and the fluid flowing in the flow path 13a is irradiated with the direct light from the LED 23, as shown by the arrows shown in FIGS. 2 and 3. By being reflected by the reflective film 13b in the flow path 13a, the reflected light from the reflective film 13b is indirectly irradiated to the fluid flowing in the flow path 13a.

第１の接続部材１７の内部には、光源１６が設けられており、流路１３ａの一端に連通する第２の流路としての流路１７ａ−１、１７ａ−２、１７ｂ−１、１７ｂ−２が光源１６の周囲に沿って形成されている。また、第１の接続部材１７の上流側フランジ１７ａには、後述する連結部材１９の一端部が固定されている。 A light source 16 is provided inside the first connecting member 17, and the flow paths 17a-1, 17a-2, 17b-1, 17b- as a second flow path communicating with one end of the flow path 13a. 2 is formed along the periphery of the light source 16. Further, one end of a connecting member 19, which will be described later, is fixed to the upstream flange 17a of the first connecting member 17.

第１の接続部材１７は、一対の上流側フランジ１７ａと下流側フランジ１７ｂを、図示しない締結部材を介して一体に締結して構成されている。上流側フランジ１７ａは、流路部材１３側に配置されており、下流側フランジ１７ｂは、光源部１５を挟んで流路部材１３とは反対側に配置されている。 The first connecting member 17 is configured by integrally fastening a pair of upstream flanges 17a and downstream flanges 17b via a fastening member (not shown). The upstream side flange 17a is arranged on the flow path member 13 side, and the downstream side flange 17b is arranged on the side opposite to the flow path member 13 with the light source portion 15 interposed therebetween.

第１の接続部材１７の上流側フランジ１７ａは、第２の流路として、流路１７ａ−１と、流路１７ａ−２と、を有する。上流側フランジ１７ａは、Ｏリング２５を介して流路部材１３の一端部を支持している。上流側フランジ１７ａ及び下流側フランジ１７ｂは、所定以上の熱伝導率を有する材料、例えば、腐食性に優れるステンレス鋼によって円筒状に形成されている。なお、上流側フランジ１７ａ及び下流側フランジ１７ｂは、ステンレス鋼に限らず、熱伝導率が高いアルミニウムの複合素材によって形成されてもよく、セラミックスやフィラーが混合された高熱伝導性樹脂材等によって形成されてもよい。 The upstream flange 17a of the first connecting member 17 has a flow path 17a-1 and a flow path 17a-2 as a second flow path. The upstream flange 17a supports one end of the flow path member 13 via the O-ring 25. The upstream flange 17a and the downstream flange 17b are formed in a cylindrical shape by a material having a thermal conductivity equal to or higher than a predetermined value, for example, stainless steel having excellent corrosiveness. The upstream flange 17a and the downstream flange 17b are not limited to stainless steel, but may be formed of a composite material of aluminum having a high thermal conductivity, and may be formed of a high thermal conductive resin material mixed with ceramics or a filler. May be done.

流路１７ａ−１は、上流側フランジ１７ａの中心付近に位置しており、流路部材１３の流路１３ａの一端と連通されている。図７に示すように、流路１７ａ−２は、流路１７ａ−１と連通されており、上流側フランジ１７ａの中心から外周側へ延びている。したがって、上流側フランジ１７ａの流路１７ａ−１及び流路１７ａ−２は、流路部材１３の流路１３ａと連通されており、光源１６の近傍に位置している。上述したように、流路１７ａ−１、１７ａ−２の内面には、流路１３ａ側から流路１７ａ−１、１７ａ−２内へ入射する紫外線を流路１３ａ内へ反射させる反射膜が設けられてもよく、ＬＥＤ２３が発する紫外線の利用効率を高めることが可能になる。 The flow path 17a-1 is located near the center of the upstream flange 17a and communicates with one end of the flow path 13a of the flow path member 13. As shown in FIG. 7, the flow path 17a-2 communicates with the flow path 17a-1 and extends from the center of the upstream flange 17a to the outer peripheral side. Therefore, the flow path 17a-1 and the flow path 17a-2 of the upstream flange 17a are communicated with the flow path 13a of the flow path member 13 and are located in the vicinity of the light source 16. As described above, the inner surface of the flow paths 17a-1 and 17a-2 is provided with a reflective film that reflects ultraviolet rays incident on the flow paths 17a-1 and 17a-2 from the flow path 13a side into the flow path 13a. It is possible to increase the utilization efficiency of the ultraviolet rays emitted by the LED 23.

図２及び図３に示すように、下流側フランジ１７ｂは、第２の流路として、流路１７ｂ−１と、流路１７ｂ−２と、光源１６を支持する支持部としての光源支持部１７ｂ−３と、を有する。光源支持部１７ｂ−３は、流路１７ｂ−１及び流路１７ｂ−２で囲まれる領域に形成されている。したがって、流路１７ｂ−１と流路１７ｂ−２は、第１の接続部材１７の内部に設けられた光源部１５の周囲に配置されている。 As shown in FIGS. 2 and 3, the downstream flange 17b has a flow path 17b-1 as a second flow path, a flow path 17b-2, and a light source support portion 17b as a support portion for supporting the light source 16. -3 and. The light source support portion 17b-3 is formed in a region surrounded by the flow path 17b-1 and the flow path 17b-2. Therefore, the flow path 17b-1 and the flow path 17b-2 are arranged around the light source unit 15 provided inside the first connecting member 17.

また、光源支持部１７ｂ−３は、図３及び図４に示すように、光源１６の基板２４が取り付けられる取付部１７ｂ−４を有する。取付部１７ｂ−４は、流路部材１３の流路１３ａの流れ方向に沿って、流路１３ａ側へ突出して形成されている。取付部１７ｂ−４には、基板２４を支持する平坦な支持面１７ｂ−５が、流路１３ａの流路断面と対向して形成されており、流路１３ａ内に位置している。取付部１７ｂ−４には、平坦な支持面１７ｂ−５から流路１３ａ側へ突出する部分が形成されていない。したがって、光源支持部１７ｂ−３は、取付部１７ｂ−４の支持面１７ｂ−５に光源１６が取り付けられたときに、基板２４の実装面２４ａと同一平面上において、ＬＥＤ２３が発する紫外線を透過させる。すなわち、光源支持部１７ｂ−３の取付部１７ｂ−４には、ＬＥＤ２３が発する紫外線を遮る部分が形成されていない。ＬＥＤ２３が発した紫外線は、カバー部材２１を透過し、流路１３ａ内へ入射する。 Further, the light source support portion 17b-3 has a mounting portion 17b-4 to which the substrate 24 of the light source 16 is mounted, as shown in FIGS. 3 and 4. The mounting portion 17b-4 is formed so as to project toward the flow path 13a along the flow direction of the flow path 13a of the flow path member 13. A flat support surface 17b-5 for supporting the substrate 24 is formed on the mounting portion 17b-4 so as to face the cross section of the flow path 13a, and is located in the flow path 13a. The mounting portion 17b-4 is not formed with a portion protruding from the flat support surface 17b-5 toward the flow path 13a. Therefore, the light source support portion 17b-3 transmits the ultraviolet rays emitted by the LED 23 on the same plane as the mounting surface 24a of the substrate 24 when the light source 16 is mounted on the support surface 17b-5 of the mounting portion 17b-4. .. That is, the mounting portion 17b-4 of the light source supporting portion 17b-3 is not formed with a portion that blocks the ultraviolet rays emitted by the LED 23. The ultraviolet rays emitted by the LED 23 pass through the cover member 21 and enter the flow path 13a.

本実施形態では、基板２４の実装面２４ａが流路１３ａ内に位置するが、取付部１７ｂ−４の支持面１７ｂ−５が流路１３ａ内に位置するように構成されることにより、例えば、基板２４の厚み等のばらつきにかかわらずに、ＬＥＤ２３全体を流路１３ａ内に配置させることができる。 In the present embodiment, the mounting surface 24a of the substrate 24 is located in the flow path 13a, but the support surface 17b-5 of the mounting portion 17b-4 is configured to be located in the flow path 13a, for example. The entire LED 23 can be arranged in the flow path 13a regardless of variations in the thickness of the substrate 24 and the like.

下流側フランジ１７ｂは、上流側フランジ１７ａと連結されており、流路１７ｂ−１と流路１７ａ−２とを接続している。また、下流側フランジ１７ｂは、下流側流路部材９と連結されている。このように第１の接続部材１７は、例えば、流路部材１３の流路１３ａから流入した流体を、光源部１５の周囲において取付部１７ｂ−４の側面に沿う流路１７ａ−１、光源支持部１７ｂ−３の外周側へ向かう流路１７ａ−２、光源支持部１７ｂ−３の外周付近を通過する流路１７ｂ−１、光源１６の発光面の反対面側で光源支持部１７ｂ−３の外周側から中心付近へ延びる流路１７ｂ−２の順に経由させて、下流側流路部材９へ流出させる。 The downstream flange 17b is connected to the upstream flange 17a, and connects the flow path 17b-1 and the flow path 17a-2. Further, the downstream flange 17b is connected to the downstream flow path member 9. As described above, the first connecting member 17 allows, for example, the fluid flowing in from the flow path 13a of the flow path member 13 to the flow path 17a-1 along the side surface of the mounting portion 17b-4 around the light source portion 15 and the light source support. The flow path 17a-2 toward the outer peripheral side of the portion 17b-3, the flow path 17b-1 passing near the outer periphery of the light source support portion 17b-3, and the light source support portion 17b-3 on the opposite surface side of the light emitting surface of the light source 16. It flows out to the downstream side flow path member 9 through the flow path 17b-2 extending from the outer peripheral side to the vicinity of the center in this order.

第２の接続部材１８は、円筒状に形成されており、上流側流路部材８と流路部材１３とを連結している。第２の接続部材１８は、Ｏリング２５を介して流路部材１３の他端部を支持している。第２の接続部材１８の外周部には、後述する連結部材１９の他端部が固定されている。 The second connecting member 18 is formed in a cylindrical shape, and connects the upstream side flow path member 8 and the flow path member 13. The second connecting member 18 supports the other end of the flow path member 13 via the O-ring 25. The other end of the connecting member 19, which will be described later, is fixed to the outer peripheral portion of the second connecting member 18.

図３及び図５に示すように、上流側流路部材８の流路から、流路部材１３の流路１３ａ内へ流入した流体は、図３及び図５中の矢印のように、流路１３ａ内を流れ、第１の接続部材１７の流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２を経由し、下流側流路部材９の流路へ流出される。第１の接続部材１７へ流入した流体は、流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２の経路を通過する際に、光源支持部１７ｂ−３に収容された光源１６が発する熱を奪いながら、下流側流路部材９へ流出される。 As shown in FIGS. 3 and 5, the fluid flowing from the flow path of the upstream side flow path member 8 into the flow path 13a of the flow path member 13 flows through the flow path as shown by the arrows in FIGS. 3 and 5. It flows through 13a, passes through the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2 of the first connecting member 17, and flows out to the flow path of the downstream flow path member 9. Will be done. The fluid flowing into the first connecting member 17 enters the light source support portion 17b-3 when passing through the paths of the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2. While taking away the heat generated by the housed light source 16, it flows out to the downstream flow path member 9.

すなわち、流路１３ａにおいて光源１６が発した紫外線が照射されることにより殺菌される流体は、流路部材１３の流路１３ａを通って、光源１６の発光面側に向かって流れ、光源１６の発光面に沿う流路１７ａ−１へ流入し、第１の接続部材１７内を流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２の複数の経路を通過して、発光面の反対面側へ流出する。第１の接続部材１７内の流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２の複数の経路は、光源１６の周囲に沿って延びており、光源１６の発光面側から反対面側に流体が通り抜ける。これにより、光源１６は、他の冷却手段を用いることなく、流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２の複数の経路を通過する流体を用いて、間接的ではあるが効率的に冷却される。また、他の冷却手段を用いることなく、流路１７ａ−１、流路１７ａ−２、流路１７ｂ−１、流路１７ｂ−２の複数の経路を通過する流体を用いて光源１６の冷却を行うことで、例えば、放熱フィンなどの他の冷却部材が不要となる。これにより、流体殺菌装置１を小型化することができる。 That is, the fluid sterilized by being irradiated with the ultraviolet rays emitted by the light source 16 in the flow path 13a flows through the flow path 13a of the flow path member 13 toward the light emitting surface side of the light source 16 and flows toward the light emitting surface side of the light source 16. It flows into the flow path 17a-1 along the light emitting surface and passes through a plurality of paths of the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2 in the first connecting member 17. Then, it flows out to the opposite side of the light emitting surface. A plurality of paths of the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2 in the first connecting member 17 extend along the periphery of the light source 16, and the light source 16 The fluid passes from the light emitting surface side to the opposite surface side. As a result, the light source 16 uses a fluid that passes through a plurality of paths of the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2 without using other cooling means. , Indirectly but efficiently cooled. Further, the light source 16 is cooled by using a fluid that passes through a plurality of paths of the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path 17b-2 without using other cooling means. By doing so, for example, another cooling member such as a heat radiation fin becomes unnecessary. As a result, the fluid sterilizer 1 can be miniaturized.

なお、光源支持部１７ｂ−３に収容された光源１６と、光源支持部１７ｂ−３との間に、例えば、アルミニウム、ステンレス等の所定以上の熱伝導率を有する熱伝導部材が設けられることが好ましい。光源１６が発した熱が、熱伝導部材を介して第１の接続部材１７内を流れる流体に伝わり、流体によって光源１６を更に効率的に冷却することができる。 A heat conductive member having a thermal conductivity of a predetermined value or higher, such as aluminum or stainless steel, may be provided between the light source 16 housed in the light source support portion 17b-3 and the light source support portion 17b-3. preferable. The heat generated by the light source 16 is transferred to the fluid flowing in the first connecting member 17 via the heat conductive member, and the light source 16 can be cooled more efficiently by the fluid.

また、流体殺菌装置１の流路部材１３における流体の流れ方向は、図１及び図５に示した方向に限定されるものではなく、図５に示す方向と逆方向であってもよい。すなわち、図示しないが、第１の接続部材１７が上流側流路部材８に接続され、第２の接続部材１８が下流側流路部材９に連結されてもよい。この構成の場合、上流側流路部材８から第１の接続部材１７へ流入した流体が、流路１７ｂ−２、流路１７ｂ−１、流路１７ａ−２、流路１７ａ−１の順に経由して流路１３ａ内を流れて、下流側流路部材９の流路へ流出される。このように流体の流れ方向を限定しないことは、後述する第２の実施形態から第５の実施形態においても同様である。 Further, the flow direction of the fluid in the flow path member 13 of the fluid sterilizer 1 is not limited to the direction shown in FIGS. 1 and 5, and may be the direction opposite to the direction shown in FIG. That is, although not shown, the first connecting member 17 may be connected to the upstream flow path member 8 and the second connecting member 18 may be connected to the downstream flow path member 9. In the case of this configuration, the fluid flowing from the upstream side flow path member 8 to the first connecting member 17 passes through the flow path 17b-2, the flow path 17b-1, the flow path 17a-2, and the flow path 17a-1 in this order. Then, it flows through the flow path 13a and flows out to the flow path of the downstream side flow path member 9. The fact that the flow direction of the fluid is not limited in this way is the same in the second to fifth embodiments described later.

また、図３及び図５では、流路部材１３は、流路１３ａにおける流体の流れ方向が、光源部１５の光源１６の発光面に対して略垂直に配置されているが、垂直に限定されず、流路１３ａの流れ方向が、光源１６の発光面に対して、所定の角度をなす構成、あるいは、角度を任意に調整可能な構成であってもよい。 Further, in FIGS. 3 and 5, in the flow path member 13, the flow direction of the fluid in the flow path 13a is arranged substantially perpendicular to the light emitting surface of the light source 16 of the light source unit 15, but is limited to vertical. Instead, the flow direction of the flow path 13a may be configured to form a predetermined angle with respect to the light emitting surface of the light source 16, or the angle may be arbitrarily adjusted.

連結部材１９は、例えば、ステンレス等の金属材料によって、流路部材１３を内部に収容する円筒状に形成されており、流路部材１３の外周を覆って保護するカバー部材としても機能する。連結部材１９の両端部には、フランジ部１９ａが形成されている。連結部材１９の一端部側のフランジ部１９ａは、第１の接続部材１７の上流側フランジ１７ａにおける流路部材１３側の側面、すなわち流路部材１３における流体の流れ方向に直交する面に、例えば、ボルト等の締結部材２７を介して固定されている。同様に、連結部材１９の他端部側のフランジ部１９ａは、第２の接続部材１８における流路部材１３側の側面、すなわち流路部材１３における流体の流れ方向に直交する面に、締結部材２７を介して固定されている。このように第１の接続部材１７と第２の接続部材１８は、連結部材１９を介して互いに連結されることで、第１の接続部材１７と第２の接続部材１８との間に挟まれた流路部材１３の両端の支持状態が補強されている。 The connecting member 19 is formed of a metal material such as stainless steel in a cylindrical shape that houses the flow path member 13 inside, and also functions as a cover member that covers and protects the outer periphery of the flow path member 13. Flange portions 19a are formed at both ends of the connecting member 19. The flange portion 19a on the one end side of the connecting member 19 is formed on a side surface of the first connecting member 17 on the upstream side flange 17a on the flow path member 13 side, that is, a surface of the flow path member 13 orthogonal to the fluid flow direction, for example. , Is fixed via a fastening member 27 such as a bolt. Similarly, the flange portion 19a on the other end side of the connecting member 19 is a fastening member on the side surface of the second connecting member 18 on the flow path member 13 side, that is, the surface of the flow path member 13 orthogonal to the fluid flow direction. It is fixed via 27. In this way, the first connecting member 17 and the second connecting member 18 are connected to each other via the connecting member 19, so that the first connecting member 17 and the second connecting member 18 are sandwiched between the first connecting member 17 and the second connecting member 18. The support state at both ends of the flow path member 13 is reinforced.

（流体殺菌装置の要部のＩ−Ｉ断面（Ａ方向））
図６は、第１の実施形態に係る流体殺菌装置１の要部において、流路部材１３を流体が流れる方向に直交するＩ−Ｉ断面をＡ方向から見た断面図である。 (I-I cross section (A direction) of the main part of the fluid sterilizer)
FIG. 6 is a cross-sectional view of the main part of the fluid sterilizer 1 according to the first embodiment, in which the I-I cross section orthogonal to the direction in which the fluid flows through the flow path member 13 is viewed from the A direction.

図２及び図５においてＩ−Ｉ断面を図中のＡ方向から見ると、図６に示すように、下流側フランジ１７ｂ及び光源１６が配置されている。図２及び図５におけるＩ−Ｉ断面をＡ方向から見たとき、図６に示すように、下流側フランジ１７ｂは、円形状であり、その中心付近に、凹状の光源支持部１７ｂ−３を有する。そして、光源支持部１７ｂ−３には、光源１６が、ＬＥＤ２３からの紫外線の照射方向が流路１３ａ側に向くように収容されている。 Looking at the I-I cross section in FIGS. 2 and 5 from the direction A in the drawing, as shown in FIG. 6, the downstream flange 17b and the light source 16 are arranged. When the I-I cross section in FIGS. 2 and 5 is viewed from the A direction, as shown in FIG. 6, the downstream flange 17b has a circular shape, and a concave light source support portion 17b-3 is provided near the center thereof. Have. The light source support portion 17b-3 accommodates the light source 16 so that the direction of irradiation of ultraviolet rays from the LED 23 faces the flow path 13a.

また、光源支持部１７ｂ−３の周囲には、複数の流路１７ｂ−１が、ＬＥＤ２３を中心とする同心円状に沿って間隔をあけて設けられている。複数の流路１７ｂ−１は、下流側フランジ１７ｂにおいて、光源１６を囲んだ周辺に光源１６の発光面側から反対面側まで貫通する貫通孔によって形成されている。 Further, a plurality of flow paths 17b-1 are provided around the light source support portion 17b-3 at intervals along a concentric circle centered on the LED 23. The plurality of flow paths 17b-1 are formed in the downstream flange 17b by through holes penetrating from the light emitting surface side to the opposite surface side of the light source 16 in the periphery surrounding the light source 16.

なお、基板２４上に実装されるＬＥＤ２３の個数、及び流路１７ｂ−１の個数は、図６に示す個数に限定されるものではなく、必要に応じて変更されてよい。 The number of LEDs 23 mounted on the substrate 24 and the number of flow paths 17b-1 are not limited to the number shown in FIG. 6, and may be changed as necessary.

（流体殺菌装置の要部のＩ−Ｉ断面（Ｂ方向））
図７は、第１の実施形態に係る流体殺菌装置１の要部において、流路部材１３を流体が流れる方向に直交するＩ−Ｉ断面をＢ方向から見た断面図である。 (I-I cross section (B direction) of the main part of the fluid sterilizer)
FIG. 7 is a cross-sectional view of the main part of the fluid sterilizer 1 according to the first embodiment, in which the I-I cross section orthogonal to the direction in which the fluid flows through the flow path member 13 is viewed from the B direction.

図２及び図５においてＩ−Ｉ断面を図中のＢ方向から見ると、図７に示すように、上流側フランジ１７ａ及び光源１６が配置されている。図２及び図５におけるＩ−Ｉ断面を図中のＢ方向から見たとき、図７に示すように、上流側フランジ１７ａは、円形状であり、その中心付近に流路１３ａと連通される断面円形状の流路１７ａ−１と、流路１７ａ−１から、上流側フランジ１７ａの外周側へ向かって放射状に延びる複数の流路１７ａ−２と、を有する。また、第１の接続部材１７の内部において、カバー部材２１は、流路１７ａ−１及び流路１７ａ−２に隣接して配置されている。 Looking at the I-I cross section in FIGS. 2 and 5 from the B direction in the drawing, as shown in FIG. 7, the upstream flange 17a and the light source 16 are arranged. When the I-I cross section in FIGS. 2 and 5 is viewed from the B direction in the drawing, as shown in FIG. 7, the upstream flange 17a has a circular shape and communicates with the flow path 13a near the center thereof. It has a flow path 17a-1 having a circular cross section, and a plurality of flow paths 17a-2 extending radially from the flow path 17a-1 toward the outer peripheral side of the upstream flange 17a. Further, inside the first connecting member 17, the cover member 21 is arranged adjacent to the flow path 17a-1 and the flow path 17a-2.

第１の接続部材１７は、一対の上流側フランジ１７ａと下流側フランジ１７ｂとを連結することで、図７に示す各流路１７ａ−２の放射状に延びる先端部分と、位置が対応する図６に示す各流路１７ｂ−１とがそれぞれ接続される。 By connecting the pair of upstream flanges 17a and the downstream flanges 17b, the first connecting member 17 has a position corresponding to the radially extending tip portion of each flow path 17a-2 shown in FIG. 7. FIG. Each flow path 17b-1 shown in the above is connected.

上述したように第１の実施形態の流体殺菌装置１は、流路部材１３の流路１３ａの流路断面に対向して配置される光源１６を備えており、光源１６のＬＥＤ２３が載置される基板２４の実装面２４ａが、流路１３ａ内に位置している。光源支持部１７ｂ−３は、基板２４の実装面２４ａと同一平面上において、ＬＥＤ２３が発する紫外線を透過させる。カバー部材２１は、実装面２４ａに沿う方向から見たときに、ＬＥＤ２３の半値角θの境界線Ｌに沿って進む紫外線を透過させる。これにより、ＬＥＤ２３全体が流路１３ａ内に配置されるので、ＬＥＤ２３が発する紫外線の利用効率が高められ、流路１３ａ内の流体に対する紫外線の照射効率を高めることができる。 As described above, the fluid sterilizer 1 of the first embodiment includes a light source 16 arranged to face the flow path cross section of the flow path 13a of the flow path member 13, and the LED 23 of the light source 16 is mounted on the light source 16. The mounting surface 24a of the substrate 24 is located in the flow path 13a. The light source support portion 17b-3 transmits the ultraviolet rays emitted by the LED 23 on the same plane as the mounting surface 24a of the substrate 24. The cover member 21 transmits ultraviolet rays traveling along the boundary line L of the half-value angle θ of the LED 23 when viewed from the direction along the mounting surface 24a. As a result, since the entire LED 23 is arranged in the flow path 13a, the utilization efficiency of the ultraviolet rays emitted by the LED 23 can be enhanced, and the irradiation efficiency of the ultraviolet rays to the fluid in the flow path 13a can be enhanced.

また、流体殺菌装置１は、ＬＥＤ２３全体が流路１３ａ内に配置されることにより、ＬＥＤ２３から出射される紫外線を屈折させて流路１３ａ内へ入射させる光学レンズ等の光学系を用いることなく、簡素な構成で、紫外線の利用効率を高めることができる。 Further, the fluid sterilizer 1 does not use an optical system such as an optical lens that refracts the ultraviolet rays emitted from the LED 23 and causes them to enter the flow path 13a by arranging the entire LED 23 in the flow path 13a. With a simple configuration, the efficiency of using ultraviolet rays can be improved.

また、流体殺菌装置１が有する流路部材１３の外周面に設けられた反射膜１３ｂは、基板２４の実装面２４ａに沿う方向から見たときに、流路部材１３の外周面に沿って、ＬＥＤ２３の半値角θの境界線Ｌと流路１３ａの内面とが交差する位置Ｐよりも、ＬＥＤ２３側へ延びている。これにより、ＬＥＤ２３が発する紫外線のうち、半値角θの境界線Ｌに沿って進む紫外線を、反射膜１３ｂによって流路１３ａ内へ反射させることが可能となり、ＬＥＤ２３が発する紫外線の利用効率を高めることができる。 Further, the reflective film 13b provided on the outer peripheral surface of the flow path member 13 included in the fluid sterilizer 1 is formed along the outer peripheral surface of the flow path member 13 when viewed from the direction along the mounting surface 24a of the substrate 24. It extends toward the LED 23 side from the position P where the boundary line L of the half value angle θ of the LED 23 and the inner surface of the flow path 13a intersect. As a result, among the ultraviolet rays emitted by the LED 23, the ultraviolet rays traveling along the boundary line L of the half-value angle θ can be reflected by the reflective film 13b into the flow path 13a, and the utilization efficiency of the ultraviolet rays emitted by the LED 23 can be improved. Can be done.

（変形例）
ここで、第１の実施形態におけるカバー部材２１の変形例について説明する。便宜上、変形例においても、上述のカバー部材２１と同一符号を付して説明する。図８は、第１の実施形態に係る流体殺菌装置が有するカバー部材２１の変形例を示す模式図である。変形例のカバー部材２１は、平板状に形成されている点が、第１の実施形態におけるカバー部材２１と異なる。図８に示すように、カバー部材２１は、基板２４の実装面２４ａに対向する平坦部分のみを有しており、基板２１の側面側へ外周部が延ばされていない。取付部１７ｂ−４の支持面１７ｂ−５の周囲には、光源１６を包囲する周壁１７ｂ−６が形成されている。平板状のカバー部材２１の外周部は、取付部１７ｂ−４の周壁１７ｂ−６に気密に固定されている。また、変形例のカバー部材２１は、基板２３の実装面２４ａに沿う方向から見たときに、光源１６の最大出射角θ’の境界線Ｌ’に沿って進む紫外線を透過させる大きさに形成されている。 (Modification example)
Here, a modified example of the cover member 21 in the first embodiment will be described. For convenience, the modification will also be described with the same reference numerals as those of the cover member 21 described above. FIG. 8 is a schematic view showing a modified example of the cover member 21 included in the fluid sterilizer according to the first embodiment. The cover member 21 of the modified example is different from the cover member 21 in the first embodiment in that it is formed in a flat plate shape. As shown in FIG. 8, the cover member 21 has only a flat portion facing the mounting surface 24a of the substrate 24, and the outer peripheral portion is not extended to the side surface side of the substrate 21. A peripheral wall 17b-6 surrounding the light source 16 is formed around the support surface 17b-5 of the mounting portion 17b-4. The outer peripheral portion of the flat plate-shaped cover member 21 is airtightly fixed to the peripheral wall 17b-6 of the mounting portion 17b-4. Further, the cover member 21 of the modified example is formed to have a size that allows ultraviolet rays traveling along the boundary line L'of the maximum emission angle θ'of the light source 16 to be transmitted when viewed from the direction along the mounting surface 24a of the substrate 23. Has been done.

図８に示す構成において、光源１６の最大出射角θ’は、ＬＥＤ２３の半値角θよりも小さい。反射膜１３ｂは、光源１６の最大出射角θ’の境界線Ｌ’と流路１３ａの内面とが交差する位置Ｐよりも、光源１６側へ延びている。これにより、光源１６が発する紫外線のうち、最大出射角θ’の境界線Ｌ’に沿って進む紫外線を、反射膜１３ｂに入射させて、反射膜１３ｂによって流路１３ａ内へ反射させることが可能となり、光源１６が発する紫外線の利用効率を高めることができる。ここで、「光源１６の最大出射角θ’」とは、光源１６を保護するカバー部材２１が装着された状態での最大出射角を指す。 In the configuration shown in FIG. 8, the maximum emission angle θ'of the light source 16 is smaller than the half-value angle θ of the LED 23. The reflective film 13b extends toward the light source 16 from the position P where the boundary line L'of the maximum emission angle θ'of the light source 16 and the inner surface of the flow path 13a intersect. As a result, among the ultraviolet rays emitted by the light source 16, the ultraviolet rays traveling along the boundary line L'of the maximum emission angle θ'can be incident on the reflective film 13b and reflected by the reflective film 13b into the flow path 13a. Therefore, it is possible to improve the utilization efficiency of the ultraviolet rays emitted by the light source 16. Here, the "maximum emission angle θ'of the light source 16" refers to the maximum emission angle when the cover member 21 that protects the light source 16 is attached.

以下、他の実施形態の流体殺菌装置について図面を参照して説明する。他の実施形態において、第１の実施形態と同一の構成部材には、第１の実施形態と同一符号を付して説明を省略する。また、第２の実施形態及び第３の実施形態は、第１の接続部材１７の内部形状（流路）が第１の実施形態と異なるが、便宜上、第１の実施形態と同一符号を付して説明する。 Hereinafter, the fluid sterilizer of another embodiment will be described with reference to the drawings. In other embodiments, the same components as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted. Further, in the second embodiment and the third embodiment, the internal shape (flow path) of the first connecting member 17 is different from that of the first embodiment, but for convenience, the same reference numerals as those in the first embodiment are attached. I will explain.

（第２の実施形態及び第３の実施形態）
図９は、第２の実施形態に係る流体殺菌装置の要部を示す断面図である。図１０は、第３の実施形態に係る流体殺菌装置の要部を示す断面図である。第２の実施形態及び第３の実施形態は、流路１３ａと連結される第１の接続部材１７の流路の向きが、第１の実施形態と異なる。 (Second and third embodiments)
FIG. 9 is a cross-sectional view showing a main part of the fluid sterilizer according to the second embodiment. FIG. 10 is a cross-sectional view showing a main part of the fluid sterilizer according to the third embodiment. In the second embodiment and the third embodiment, the direction of the flow path of the first connecting member 17 connected to the flow path 13a is different from that of the first embodiment.

図９に示すように、第２の実施形態の流体殺菌装置２における第１の接続部材１７は、流路部材１３の流路１３ａの一端に連結された連結路としての流路１７ｂ−１を有しており、流路１７ｂ−１の流れ方向が、流路１３ａの流れ方向に対して鈍角θＯをなして傾斜している。言い換えると、流路１７ｂ−１は、流路１３ａ側から遠ざかるに従って、流路１３ａの径方向における内側から外側へ向かって流体を流すように、流路１３ａの流れ方向に対して傾斜されている。また、流路１７ｂ−１は、流路１７ｂ−２と連結されている。 As shown in FIG. 9, the first connecting member 17 in the fluid sterilizer 2 of the second embodiment has a flow path 17b-1 as a connecting path connected to one end of the flow path 13a of the flow path member 13. The flow direction of the flow path 17b-1 is inclined with an obtuse angle θ O with respect to the flow direction of the flow path 13a. In other words, the flow path 17b-1 is inclined with respect to the flow direction of the flow path 13a so that the fluid flows from the inside to the outside in the radial direction of the flow path 13a as the distance from the flow path 13a side increases. .. Further, the flow path 17b-1 is connected to the flow path 17b-2.

また、図１０に示すように、第３の実施形態の流体殺菌装置３における第１の接続部材１７は、流路部材１３の流路１３ａの一端に連結された連結路としての流路１７ｂ−１を有しており、流路１７ｂ−１の流れ方向が、流路１３ａの流れ方向と等しい。言い換えると、流路１７ｂ−１の流れ方向は、流路１３ａの流れ方向と揃えられており、流路１３ａと流路１７ｂ−１との間で、流体の流れ方向が変化することが抑えられている。また、流路１７ｂ−１は、流路１７ｂ−２と連結されている。 Further, as shown in FIG. 10, the first connecting member 17 in the fluid sterilizer 3 of the third embodiment is a flow path 17b- as a connecting path connected to one end of the flow path 13a of the flow path member 13. The flow direction of the flow path 17b-1 is equal to the flow direction of the flow path 13a. In other words, the flow direction of the flow path 17b-1 is aligned with the flow direction of the flow path 13a, and the change in the flow direction of the fluid between the flow path 13a and the flow path 17b-1 is suppressed. ing. Further, the flow path 17b-1 is connected to the flow path 17b-2.

第２の実施形態及び第３の実施形態は、第１の実施形態に比べて、流路１３ａから流路１７ｂ−１へ流入する、または流路１７ｂ−１から流路１３ａへ流入する流体の流動抵抗が抑えられるので、流路部材１３の流路１３ａと、第１の接続部材１７の流路１７ｂ−１との間で、流体をスムーズに流すことができる。 In the second embodiment and the third embodiment, as compared with the first embodiment, the fluid flowing from the flow path 13a into the flow path 17b-1 or flowing from the flow path 17b-1 into the flow path 13a Since the flow resistance is suppressed, the fluid can flow smoothly between the flow path 13a of the flow path member 13 and the flow path 17b-1 of the first connecting member 17.

なお、第２の実施形態及び第３の実施形態においても、流路１７ｂ−１の内面に、反射膜や反射板が設けられてもよい。このような反射膜等により、流路１３ａ側から流路１７ｂ−１内へ入射する紫外線を、流路１３ａ内へ反射させることが可能になり、ＬＥＤ２３が発する紫外線の利用効率を高めることができる。 Also in the second embodiment and the third embodiment, a reflective film or a reflector may be provided on the inner surface of the flow path 17b-1. With such a reflective film or the like, it is possible to reflect the ultraviolet rays incident on the flow path 17b-1 from the flow path 13a side into the flow path 13a, and it is possible to improve the utilization efficiency of the ultraviolet rays emitted by the LED 23. ..

（第４の実施形態）
図１１は、第４の実施形態に係る流体殺菌装置の要部を示す断面図である。第４の実施形態は、連結部材の内面で紫外線を反射する点が、第１の実施形態と異なる。図１１に示すように、第４の実施形態の流体殺菌装置４が備える連結部材１９Ａは、紫外線透過性を有する流路部材１３Ａを内部に収容する円筒状に形成されており、内周面全体に、流路部材１３Ａを透過した紫外線を流路部材１３Ａの流路１３ａへ反射する反射面としての反射膜１９ｂが形成されている。 (Fourth Embodiment)
FIG. 11 is a cross-sectional view showing a main part of the fluid sterilizer according to the fourth embodiment. The fourth embodiment is different from the first embodiment in that ultraviolet rays are reflected on the inner surface of the connecting member. As shown in FIG. 11, the connecting member 19A included in the fluid sterilizer 4 of the fourth embodiment is formed in a cylindrical shape that internally accommodates the flow path member 13A having ultraviolet light transmission, and is formed on the entire inner peripheral surface. A reflective film 19b is formed as a reflecting surface for reflecting ultraviolet rays transmitted through the flow path member 13A to the flow path 13a of the flow path member 13A.

反射膜１９ｂとしては、例えば、シリカ膜やアルミニウム蒸着膜が用いられている。連結部材１９Ａは、反射膜１９ｂを有する点が、上述の連結部材１９と異なる。また、流路部材１３Ａは、紫外線透過性を有する材料によって形成されており、反射膜１３ｂを有していない点が、上述の流路部材１３と異なる。したがって、第４の実施形態では、光源１６が発した紫外線が流路部材１３Ａの流路１３ａ内へ入射し、流路部材１３Ａを透過した後に、連結部材１９Ａの反射膜１９ｂで反射される。反射膜１９ｂで反射された紫外線の反射光は、流路部材１３Ａを透過して、流路部材１３Ａの流路１３ａ内を流れる流体に照射される。 As the reflective film 19b, for example, a silica film or an aluminum vapor deposition film is used. The connecting member 19A is different from the above-mentioned connecting member 19 in that it has a reflective film 19b. Further, the flow path member 13A is different from the above-mentioned flow path member 13 in that the flow path member 13A is made of a material having ultraviolet light transmittance and does not have the reflective film 13b. Therefore, in the fourth embodiment, the ultraviolet rays emitted by the light source 16 enter the flow path 13a of the flow path member 13A, pass through the flow path member 13A, and then are reflected by the reflective film 19b of the connecting member 19A. The reflected light of the ultraviolet rays reflected by the reflective film 19b passes through the flow path member 13A and irradiates the fluid flowing in the flow path 13a of the flow path member 13A.

第４の実施形態においても、光源部１５を有することにより、第１の実施形態と同様に、ＬＥＤ２３が発した紫外線の利用効率が高められるので、流路１３ａ内の流体に対する紫外線の照射効率を高めることができる。また、流路部材１３Ａを透過した紫外線が、連結部材１９Ａの反射膜１９ｂによって流路１３ａ内へ反射されるので、流路１３ａ内の流体に対する紫外線の照射効率を更に高めることができる。 Also in the fourth embodiment, by having the light source unit 15, the utilization efficiency of the ultraviolet rays emitted by the LED 23 is enhanced as in the first embodiment, so that the irradiation efficiency of the ultraviolet rays to the fluid in the flow path 13a can be improved. Can be enhanced. Further, since the ultraviolet rays transmitted through the flow path member 13A are reflected into the flow path 13a by the reflective film 19b of the connecting member 19A, the irradiation efficiency of the ultraviolet rays to the fluid in the flow path 13a can be further improved.

（第５の実施形態）
図１２は、第５の実施形態に係る流体殺菌装置の要部を示す断面図である。第５の実施形態は、流路部材１３の長手方向の両側に、光源１６がそれぞれ配置された点が、第１の実施形態と異なる。図１２に示すように、第５の実施形態の流体殺菌装置５は、第２の接続部材１８Ａと、連結部材１９Ｂと、を備える。第２の接続部材１８Ａの内部には、上述した第１の接続部材１７の内部の光源１６とは別の光源１６が設けられている。また、第２の接続部材１８Ａの内部には、上述した第１の接続部材１７と同様に、流路１３ａの上流側の一端に連通する第３の流路としての流路１７ａ−１、１７ａ−２、１７ｂ−１、１７ｂ−２が光源１６の周囲に沿って形成されている。連結部材１９Ｂの両端部には、第１の接続部材１７と第２の接続部材１８Ａに固定されるフランジ部１９ａがそれぞれ形成されている。 (Fifth Embodiment)
FIG. 12 is a cross-sectional view showing a main part of the fluid sterilizer according to the fifth embodiment. The fifth embodiment is different from the first embodiment in that the light sources 16 are arranged on both sides of the flow path member 13 in the longitudinal direction. As shown in FIG. 12, the fluid sterilizer 5 of the fifth embodiment includes a second connecting member 18A and a connecting member 19B. Inside the second connecting member 18A, a light source 16 different from the light source 16 inside the first connecting member 17 described above is provided. Further, inside the second connecting member 18A, similarly to the first connecting member 17 described above, the flow paths 17a-1 and 17a as a third flow path communicating with one end on the upstream side of the flow path 13a. -2, 17b-1, 17b-2 are formed along the periphery of the light source 16. Flange portions 19a fixed to the first connecting member 17 and the second connecting member 18A are formed at both ends of the connecting member 19B, respectively.

第５の実施形態によれば、第２の接続部材１８Ａが光源部１５を有することで、第１の接続部材１７のみに光源部１５を有する第１の実施形態から第４の実施形態と比べて、流路１３ａ内の流体の殺菌効果を更に高めることができる。また、第５の実施形態においても、第１の接続部材１７及び第２の接続部材１８Ａが光源部１５をそれぞれ有することにより、第１の実施形態と同様に、ＬＥＤ２３が発した紫外線の利用効率が高められるので、流路１３ａ内の流体に対する紫外線の照射効率を高めることができる。 According to the fifth embodiment, since the second connecting member 18A has the light source unit 15, it is compared with the first to fourth embodiments in which the light source unit 15 is provided only in the first connecting member 17. Therefore, the bactericidal effect of the fluid in the flow path 13a can be further enhanced. Further, also in the fifth embodiment, since the first connecting member 17 and the second connecting member 18A each have the light source unit 15, the utilization efficiency of the ultraviolet rays emitted by the LED 23 is the same as in the first embodiment. Therefore, it is possible to increase the irradiation efficiency of ultraviolet rays on the fluid in the flow path 13a.

本発明の実施形態を説明したが、実施形態は、例として提示したものであり、本発明の範囲を限定することを意図していない。実施形態は、その他の様々な形態で実施することが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。実施形態やその変形は、本発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。 Although embodiments of the present invention have been described, the embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The embodiments and modifications thereof are included in the scope and gist of the present invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

１ 流体殺菌装置
１３ 流路部材
１３ａ 流路（第１の流路）
１３ｂ 反射膜（反射面）
１５ 光源部
１６ 光源
１７ 第１の接続部材（接続部材）
１７ａ 上流側フランジ
１７ｂ 下流側フランジ
１７ａ−１、１７ａ−２、１７ｂ−１、１７ｂ−２ 流路（第２の流路）
１７ｂ−３ 光源支持部（支持部）
２１ カバー部材
２３ ＬＥＤ（発光素子）
２４ 基板
２４ａ 実装面（載置面）
θ 半値角
θ’ 最大出射角
θＯ 鈍角 1 Fluid sterilizer 13 Flow path member 13a Flow path (first flow path)
13b Reflective film (reflective surface)
15 Light source unit 16 Light source 17 First connecting member (connecting member)
17a Upstream flange 17b Downstream flange 17a-1, 17a-2, 17b-1, 17b-2 Flow path (second flow path)
17b-3 Light source support (support)
21 Cover member 23 LED (light emitting element)
24 Board 24a Mounting surface (mounting surface)
θ Half-value angle θ'Maximum output angle θ O obtuse angle

Claims (6)

流体を流すための第１の流路を有する流路部材と；
前記第１の流路の、前記流体の流れ方向に交差する流路断面に対向して配置され、前記第１の流路内へ紫外線を照射する発光素子を有する光源と；
前記流路部材の一端に接続されると共に前記光源が設けられ、前記光源の周囲に配置されて前記第１の流路に連通する第２の流路と、前記光源を支持する支持部と、を有する接続部材と；
前記光源を流体から保護するカバー部材と；
を具備し、
前記光源は、前記発光素子が載置される載置面を有し、前記載置面が前記第１の流路内に位置し、
前記第２の流路は、前記第１の流路の前記流路断面に対向する前記光源の一面側の、前記接続部材の中心部から前記接続部材の外周側まで向かう第１の経路と、前記第１の経路から前記接続部材の外周に沿って延びる第２の経路と、前記第２の経路に連通して前記接続部材の外周側から、前記光源の前記一面と対向する前記接続部材の他面側の中心部まで向かう第３の経路と、を有し、
前記カバー部材は、前記載置面に沿う方向から見たときに、前記光源の最大出射角の境界線に沿って進む紫外線を透過させる、流体殺菌装置。 With a flow path member having a first flow path for flowing a fluid;
A light source having a light emitting element that is arranged to face the cross section of the first flow path that intersects the flow direction of the fluid and irradiates the first flow path with ultraviolet rays;
A second flow path that is connected to one end of the flow path member and is provided with the light source and is arranged around the light source to communicate with the first flow path, and a support portion that supports the light source. With a connecting member with;
With a cover member that protects the light source from fluid;
Equipped with
The light source has a mounting surface on which the light emitting element is mounted, and the mounting surface described above is located in the first flow path.
The second flow path includes a first path from the center of the connection member to the outer peripheral side of the connection member on one side of the light source facing the flow path cross section of the first flow path. A second path extending from the first path along the outer periphery of the connecting member, and the connecting member communicating with the second path from the outer peripheral side of the connecting member and facing the one surface of the light source. It has a third path to the center on the other side,
The cover member is a fluid sterilizer that transmits ultraviolet rays traveling along the boundary line of the maximum emission angle of the light source when viewed from the direction along the above-mentioned mounting surface. 前記第２の流路は、前記光源を中心とする円周上に互いに間隔をあけて配置された複数の前記第２の経路を有する、The second flow path has a plurality of the second paths arranged at intervals on the circumference centered on the light source.
請求項１に記載の流体殺菌装置。The fluid sterilizer according to claim 1. 前記流路部材の外周面には、前記発光素子が前記第１の流路内へ照射する紫外線を前記第１の流路内へ反射する反射面が設けられ、
前記載置面に沿う方向から見たときに、前記反射面は、前記流路部材の外周面に沿って、前記光源の最大出射角の境界線と前記第１の流路の内面とが交差する位置よりも、前記光源側へ延びている、
請求項１または２に記載の流体殺菌装置。 A reflective surface is provided on the outer peripheral surface of the flow path member to reflect the ultraviolet rays emitted by the light emitting element into the first flow path into the first flow path.
When viewed from the direction along the above-mentioned mounting surface, the reflective surface intersects the boundary line of the maximum emission angle of the light source and the inner surface of the first flow path along the outer peripheral surface of the flow path member. It extends toward the light source side from the position where it is
The fluid sterilizer according to claim 1 or 2. 前記第２の流路は、前記第１の流路の一端に連結された連結路を有し、前記連結路の流れ方向が、前記第１の流路の流れ方向に対して鈍角をなして傾斜している、
請求項１ないし３のいずれか１項に記載の流体殺菌装置。 The second flow path has a connecting path connected to one end of the first flow path, and the flow direction of the connecting path is obtuse with respect to the flow direction of the first flow path. Inclined,
The fluid sterilizer according to any one of claims 1 to 3. 前記第２の流路は、前記第１の流路の一端に連結された連結路を有し、前記連結路の流れ方向が、前記第１の流路の流れ方向と等しい、
請求項１ないし３のいずれか１項に記載の流体殺菌装置。 The second flow path has a connecting path connected to one end of the first flow path, and the flow direction of the connecting path is equal to the flow direction of the first flow path.
The fluid sterilizer according to any one of claims 1 to 3. 流体を流すための第１の流路を有する流路部材と；With a flow path member having a first flow path for flowing a fluid;
前記第１の流路の、前記流体の流れ方向に交差する流路断面に対向して配置され、前記第１の流路内へ紫外線を照射する発光素子を有する光源と；A light source having a light emitting element that is arranged to face the cross section of the first flow path that intersects the flow direction of the fluid and irradiates the first flow path with ultraviolet rays;
前記流路部材の一端に接続されると共に前記光源が設けられ、前記光源の周囲に配置されて前記第１の流路に連通する第２の流路と、前記光源を支持する支持部と、を有する接続部材と；A second flow path that is connected to one end of the flow path member and is provided with the light source and is arranged around the light source to communicate with the first flow path, and a support portion that supports the light source. With a connecting member with;
前記光源を流体から保護するカバー部材と；With a cover member that protects the light source from fluid;
を具備し、Equipped with
前記光源は、前記発光素子が載置される載置面を有し、前記載置面が前記第１の流路内に位置し、The light source has a mounting surface on which the light emitting element is mounted, and the mounting surface described above is located in the first flow path.
前記カバー部材は、前記載置面に沿う方向から見たときに、前記光源の最大出射角の境界線に沿って進む紫外線を透過させ、The cover member transmits ultraviolet rays traveling along the boundary line of the maximum emission angle of the light source when viewed from the direction along the above-mentioned mounting surface.
前記第２の流路は、前記第１の流路の一端に連結された連結路を有し、前記連結路の流れ方向が、前記第１の流路の流れ方向に対して鈍角をなして傾斜している、流体殺菌装置。The second flow path has a connecting path connected to one end of the first flow path, and the flow direction of the connecting path is obtuse with respect to the flow direction of the first flow path. Inclined, fluid sterilizer.
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Publication number Priority date Publication date Assignee Title
CN109205730A (en) * 2018-09-19 2019-01-15 深圳市蓝巨科技有限公司 A kind of overflow-type sterilizing unit
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* Cited by examiner, † Cited by third party
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US5366705A (en) * 1993-06-08 1994-11-22 James J. Reidy Gravity feed ultraviolet liquid sterilization system
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