JP6885279B2 - Fluid sterilizer - Google Patents

Fluid sterilizer Download PDF

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JP6885279B2
JP6885279B2 JP2017182546A JP2017182546A JP6885279B2 JP 6885279 B2 JP6885279 B2 JP 6885279B2 JP 2017182546 A JP2017182546 A JP 2017182546A JP 2017182546 A JP2017182546 A JP 2017182546A JP 6885279 B2 JP6885279 B2 JP 6885279B2
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flow path
light source
fluid
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light emitting
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JP2019055126A (en
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剛雄 加藤
剛雄 加藤
亮彦 田内
亮彦 田内
幸信 中川
幸信 中川
純 藤岡
純 藤岡
公人 櫻井
公人 櫻井
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Toshiba Lighting and Technology Corp
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Priority to TW107108643A priority patent/TWI761469B/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。この種の流体殺菌装置としては、紫外線を発する発光ダイオード（ＬＥＤ）を有する光源を用いたものがある。 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. As this kind of fluid sterilizer, there is one using a light source having a light emitting diode (LED) that emits ultraviolet rays.

特開２０１７−７４１１４号公報JP-A-2017-74114

上述した流体殺菌装置では、流路内を流れる流体へＬＥＤが発する紫外線を効率的に照射することが望まれている。 In the above-mentioned fluid sterilizer, it is desired to efficiently irradiate the fluid flowing in the flow path with the ultraviolet rays emitted by the LED.

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複数の第１の発光素子を有する第１の光源と、前記第１の流路の前記流路断面に対向し、かつ、前記第１の光源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複数の第２の発光素子を有する第２の光源と、を具備し、前記第１の光源と前記第２の光源とが互いに対向する同一の平面上に前記複数の第１の発光素子と前記複数の第２の発光素子を投影したとき、前記第１の発光素子と前記第２の発光素子は、仮想上の正多角形の頂点に配置されている。 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. The first light source having a plurality of first light emitting elements that irradiate the first flow path with ultraviolet rays, and the first light source facing the flow path cross section of the first flow path and the first flow path. A second light source, which is arranged to face the light source and has a plurality of second light emitting elements that irradiate the first flow path with ultraviolet rays, is provided, and the first light source and the second light source are provided. When the plurality of first light source elements and the plurality of second light source elements are projected onto the same plane facing each other, the first light source element and the second light source element are virtually virtual. It is located at the apex of a regular polygon.

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.

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 embodiment. 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 embodiment. 実施形態に係る流体殺菌装置が有する第１の光源を拡大して示す断面図である。It is sectional drawing which enlarges and shows the 1st light source which the fluid sterilizer which concerns on embodiment have. 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 the direction in which a fluid flows through a flow path member in a main part of the fluid sterilizer according to the embodiment, as viewed from the A direction. 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 an embodiment as viewed from the B direction. 実施形態に係る流体殺菌装置の第１の光源及び第２の光源を説明するための模式図である。It is a schematic diagram for demonstrating the 1st light source and the 2nd light source of the fluid sterilizer which concerns on embodiment. 実施形態に係る流体殺菌装置の第１の光源及び第２の光源の変形例１を説明するための模式図である。It is a schematic diagram for demonstrating the modification 1 of the 1st light source and the 2nd light source of the fluid sterilizer which concerns on embodiment. 実施形態に係る流体殺菌装置の第１の光源及び第２の光源の変形例２を説明するための模式図である。It is a schematic diagram for demonstrating the modification 2 of the 1st light source and the 2nd light source of the fluid sterilizer which concerns on embodiment. 実施形態に係る流体殺菌装置の第１の光源及び第２の光源の変形例３を説明するための模式図である。It is a schematic diagram for demonstrating the modification 3 of the 1st light source and the 2nd light source of the fluid sterilizer which concerns on embodiment. 実施形態に係る流体殺菌装置の第１の光源及び第２の光源の変形例４を説明するための模式図である。It is a schematic diagram for demonstrating the modification 4 of the 1st light source and the 2nd light source of the fluid sterilizer which concerns on embodiment. 実施形態に係る流体殺菌装置の要部の変形例５を示す断面図である。It is sectional drawing which shows the modification 5 of the main part of the fluid sterilizer which concerns on 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、第１の光源と、第２の光源と、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。第１の光源は、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。第１の光源は、複数の第１の発光素子を有する。複数の第１の発光素子は、第１の流路内へ紫外線を照射する。第２の光源は、第１の流路の流路断面に対向して配置されている。第２の光源は、第１の光源に対向して配置されている。第２の光源は、複数の第２の発光素子を有する。複数の第２の発光素子は、第１の流路内へ紫外線を照射する。第１の光源と第２の光源が互いに対向する同一の平面上に複数の第１の発光素子と複数の第２の発光素子を投影したとき、第１の発光素子と第２の発光素子は、仮想上の正多角形の頂点に配置されている。 The fluid sterilizer according to the embodiment described below includes a flow path member, a first light source, and a second light source. The flow path member has a first flow path for flowing a fluid. The first 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 first light source has a plurality of first light emitting elements. The plurality of first light emitting elements irradiate the first flow path with ultraviolet rays. The second light source is arranged so as to face the cross section of the first flow path. The second light source is arranged to face the first light source. The second light source has a plurality of second light emitting elements. The plurality of second light emitting elements irradiate the first flow path with ultraviolet rays. When a plurality of first light emitting elements and a plurality of second light emitting elements are projected on the same plane in which the first light source and the second light source face each other, the first light emitting element and the second light emitting element become the same. , Is located at the apex of a virtual regular polygon.

また、以下で説明する実施形態に係る流体殺菌装置において、第１の光源と第２の光源が互いに対向する同一の平面上に複数の第１の発光素子及び複数の第２の発光素子を投影したとき、第１の発光素子及び第２の発光素子は、正多角形の頂点に交互に配置されている。 Further, in the fluid sterilizer according to the embodiment described below, a plurality of first light emitting elements and a plurality of second light emitting elements are projected on the same plane in which the first light source and the second light source face each other. Then, the first light emitting element and the second light emitting element are alternately arranged at the vertices of the regular polygon.

また、以下で説明する実施形態に係る流体殺菌装置において、第１の光源は、第１の基板を有する。第１の基板には、第１の発光素子が配置されている。第２の光源は、第２の基板を有する。第２の基板には、第２の発光素子が配置されている。第２の発光素子は、第１の基板における第１の発光素子の配置と等しく配置されている。第２の基板は、第１の基板に対して正多角形の中心まわりに回転されて設けられている。 Further, in the fluid sterilizer according to the embodiment described below, the first light source has a first substrate. A first light emitting element is arranged on the first substrate. The second light source has a second substrate. A second light emitting element is arranged on the second substrate. The second light emitting element is arranged in the same manner as the arrangement of the first light emitting element on the first substrate. The second substrate is provided so as to be rotated around the center of the regular polygon with respect to the first substrate.

また、以下で説明する実施形態に係る流体殺菌装置において、第１の発光素子と第２の発光素子は、同心の複数の正多角形の頂点に交互に配置されている。 Further, in the fluid sterilizer according to the embodiment described below, the first light emitting element and the second light emitting element are alternately arranged at the vertices of a plurality of concentric regular polygons.

また、以下で説明する実施形態に係る流体殺菌装置は、第１の接続部材と、第２の接続部材と、を更に備える。第１の接続部材は、流路部材の一端に接続されている。第１の接続部材には、第１の光源が設けられている。第１の接続部材は、第２の流路を有する。第２の流路は、第１の光源の周囲に配置されている。第２の流路は、第１の流路に連通している。第２の接続部材は、流路部材の他端に接続されている。第２の接続部材には、第２の光源が設けられている。第２の接続部材は、第３の流路を有する。第３の流路は、第２の光源の周囲に配置されている。第３の流路は、第１の流路に連通している。 Further, the fluid sterilizer according to the embodiment described below further includes a first connecting member and a second connecting member. The first connecting member is connected to one end of the flow path member. The first connecting member is provided with a first light source. The first connecting member has a second flow path. The second flow path is arranged around the first light source. The second flow path communicates with the first flow path. The second connecting member is connected to the other end of the flow path member. The second connecting member is provided with a second light source. The second connecting member has a third flow path. The third flow path is arranged around the second light source. The third flow path communicates with 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いて、流路部材は、紫外線透過性を有する。流路部材には、反射面が設けられている。反射面は、第１の光源及び第２の光源が発した紫外線を第１の流路内へ反射する。 Further, in the fluid sterilizer according to the embodiment described below, the flow path member has ultraviolet transparency. The flow path member is provided with a reflective surface. The reflecting surface reflects the ultraviolet rays emitted by the first light source and the second light source into the first flow path.

（第１の実施形態）
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。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。図１は、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、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、実施形態に係る流体殺菌装置が有する第１の光源を拡大して示す断面図である。 (First Embodiment)
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. FIG. 1 is a schematic view showing the entire fluid sterilizer according to the embodiment. FIG. 2 is a cross-sectional view showing a main part of the fluid sterilizer according to the embodiment. FIG. 3 is an enlarged cross-sectional view showing a first light source included in the fluid sterilizer according to the 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第１の光源部１５Ａ及び第２の光源部１５Ｂ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. It includes a first light source unit 15A and a second light source unit 15B. 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板１３ｂを用いる。反射板１３ｂは、第１の光源部１５Ａ及び第２の光源部１５Ｂ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、アルミニウム製の板材が用いられている。 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 reflector 13b as a reflecting surface having high ultraviolet reflectance is used on the entire outer peripheral surface of the quartz tube. The reflector 13b is an example of a reflecting surface that reflects ultraviolet rays emitted by the first light source unit 15A and the second light source unit 15B into the flow path 13a into the flow path 13a. For example, an aluminum plate material is used. Has been done.

なお、流路部材１３に形成される反射板１３ｂは、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が形成されたものを用いてもよい。反射膜は、例えば、シリカ膜が用いられている。また、流路部材１３に形成される反射膜は、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）等のフッ素樹脂によって形成されてもよい。また、反射膜は、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。 As the reflector 13b formed on the flow path member 13, a reflector having a reflective film as a reflective surface having a high ultraviolet reflectance may be used on the entire outer peripheral surface of the quartz tube. As the reflective film, for example, a silica film is used. Further, the reflective film formed on the flow path member 13 is not limited to the silica film, and may be an aluminum vapor-deposited film. Further, the flow path member 13 is not limited to a transparent quartz tube, and may be formed of a fluororesin such as polytetrafluoroethylene (PTFE, a polymer of tetrafluoroethylene) having a high reflectance. Further, the reflective film 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２に示すように、第１の光源部１５Ａと第２の光源部１５Ｂは、流路部材１３の流路１３ａの両端に配置されており、互いに対向している。以下、第１の光源部１５Ａの構成要素と、第２の光源部１５Ｂの構成要素については、同一符号の末尾にＡ、Ｂを付けて区別する。第１の光源部１５Ａと第２の光源部１５Ｂは、後述する第１の光源部１５Ａにおける複数の第１のＬＥＤ２３Ａの配置と、第２の光源部１５Ｂにおける第２のＬＥＤ２３Ｂの配置とが異なる点を除いて、同様に構成されている。このため、第１の光源部１５Ａと第２の光源部１５Ｂとで共通する構成については、第１の光源部１５Ａの構成に基づいて説明し、第２の光源部１５Ｂの構成についての説明を省略する。第１の光源部１５Ａにおける第１のＬＥＤ２３Ａの配置と、第２の光源部１５Ｂにおける第２のＬＥＤ２３Ｂの配置との違いについては後述する。 As shown in FIG. 2, the first light source unit 15A and the second light source unit 15B are arranged at both ends of the flow path 13a of the flow path member 13 and face each other. Hereinafter, the components of the first light source unit 15A and the components of the second light source unit 15B are distinguished by adding A and B at the end of the same reference numerals. The arrangement of the plurality of first LEDs 23A in the first light source unit 15A, which will be described later, and the arrangement of the second LED 23B in the second light source unit 15B are different between the first light source unit 15A and the second light source unit 15B. It is configured in the same way except for the points. Therefore, the configuration common to the first light source unit 15A and the second light source unit 15B will be described based on the configuration of the first light source unit 15A, and the configuration of the second light source unit 15B will be described. Omit. The difference between the arrangement of the first LED 23A in the first light source unit 15A and the arrangement of the second LED 23B in the second light source unit 15B will be described later.

図３に示すように、第１の光源部１５Ａは、第１の接続部材１７の内部に設けられている。第１の光源部１５Ａは、第１の光源１６Ａと、第１の光源１６Ａを流体から保護するカバー部材２１と、を有する。カバー部材２１については、第１の光源部１５Ａと第２の光源部１５Ｂとで同一符号を付けて説明する。第１の光源１６Ａ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、第１の光源部１５Ａの第１の光源１６Ａ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 first light source unit 15A is provided inside the first connecting member 17. The first light source unit 15A includes a first light source 16A and a cover member 21 that protects the first light source 16A from a fluid. The cover member 21 will be described with the same reference numerals in the first light source unit 15A and the second light source unit 15B. The first light source 16A 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 fluid flow direction (hereinafter, referred to as the flow path cross section of the flow path 13a). Has been done. Further, the first light source 16A of the first light source unit 15A is arranged in the light source support unit 17b-3 described later, which is included in the first connecting member 17.

第１の光源１６Ａは、光モジュールであって、紫外線を発する第１の発光素子としての第１のＬＥＤ２３Ａと、第１のＬＥＤ２３Ａが実装された第１の基板２４Ａと、を有する。第１の基板２４Ａは、金属材料を母材として形成されており、第１のＬＥＤ２３Ａが載置される載置面としての実装面２４ａを有する。第１の基板２４Ａ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、導電パターン上に第１のＬＥＤ２３Ａが設けられている。なお、第１の基板２４Ａ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、第１の光源１６Ａが有する第１の発光素子としては、第１のＬＥＤ２３Ａに限らず、レーザーダイオード（ＬＤ）等の他の半導体素子が用いられてもよい。 The first light source 16A is an optical module and includes a first LED 23A as a first light emitting element that emits ultraviolet rays, and a first substrate 24A on which the first LED 23A is mounted. The first substrate 24A is formed of a metal material as a base material, and has a mounting surface 24a as a mounting surface on which the first LED 23A is mounted. Although not shown, a desired conductive pattern (wiring pattern) is formed on the mounting surface 24a of the first substrate 24A via an insulating layer, and the first LED 23A is provided on the conductive pattern. The base material of the first substrate 24A is not limited to a metal material, and ceramics such as alumina may be used. Further, the first light emitting element included in the first light source 16A is not limited to the first LED 23A, and other semiconductor elements such as a laser diode (LD) may be used.

第１の光源１６Ａは、図示しない電源から電力が供給され、第１のＬＥＤ２３Ａを発光させる。第１の光源１６Ａは、第１のＬＥＤ２３Ａの発光面が、流路１３ａの流路断面に対向しており、例えば、第１の光源１６Ａの第１の基板２４Ａ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、「第１のＬＥＤ２３Ａの発光面」とは、単に第１のＬＥＤ２３Ａの発光領域のみを示しているのではなく、第１のＬＥＤ２３Ａが配置された第１の基板２４Ａの主面全体を指している。また、「第１のＬＥＤ２３Ａ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、第１のＬＥＤ２３Ａ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 first light source 16A is supplied with electric power from a power source (not shown) to cause the first LED 23A to emit light. In the first light source 16A, the light emitting surface of the first LED 23A faces the cross section of the flow path 13a. For example, the main surface of the first substrate 24A of the first light source 16A is the flow path 13a. It is arranged so as to be substantially perpendicular to the flow direction. Here, the "light emitting surface of the first LED 23A" does not simply indicate only the light emitting region of the first LED 23A, but the entire main surface of the first substrate 24A on which the first LED 23A is arranged. pointing. Further, the direction in which the light emitting surface of the first LED 23A faces the cross section of the flow path 13a is not limited to the direction in which the light emitting surface faces parallel to each other. For example, the angle (acute angle) formed by the light emitting surface of the first LED 23A and the cross section of the flow path 13a is allowed up to about ± 10 °.

また、第１のＬＥＤ２３Ａ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 first LED 23A 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.

第１の光源部１５Ａ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、第１のＬＥＤ２３Ａ及び第１の基板２４Ａを覆って配置されている。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、第１の光源部１５Ａの内部が気密に閉じられている。カバー部材２１は、第１のＬＥＤ２３Ａ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が照射される。 The cover member 21 of the first light source unit 15A is, for example, an ultraviolet transmitting member formed of a glass material, and is arranged so as to cover the first LED 23A and the first substrate 24A. 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 first light source portion 15A is airtightly closed. The cover member 21 transmits the ultraviolet rays emitted by the first LED 23A to the fluid flowing in the flow path 13a and the fluid flowing in the flow paths 17a-1 and 17a-2 described later in the first connecting member 17. Is irradiated with ultraviolet rays.

第１のＬＥＤ２３Ａが載置される実装面２４ａは、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、第１のＬＥＤ２３Ａの半値角を踏まえて、第１のＬＥＤ２３Ａ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 first LED 23A is mounted does not limit the orientation (posture) of the mounting surface 24a with respect to the flow direction of the flow path 13a, but the first LED 23A is based on the half-value angle of the first LED 23A. From the viewpoint of increasing the utilization efficiency of the ultraviolet rays emitted by the LED 23A, it is preferable that the mounting surface 24a is arranged parallel to the 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、第１の光源１６Ａ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、第１のＬＥＤ２３Ａ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 first light source 16A, the flow paths 17a-1 and 17a- are necessary. A reflective film may be provided on the inner surface of 2. 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 first LED 23A. Can be increased.

第１の光源１６Ａの第１のＬＥＤ２３Ａ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第１のＬＥＤ２３Ａからの直射光が照射されると共に、図３に示す矢印のように、流路１３ａ内において反射板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板１３ｂからの反射光が間接的に照射される。 The ultraviolet rays emitted from the first LED 23A of the first light source 16A pass through the cover member 21, and the fluid flowing in the flow path 13a is irradiated with the direct light from the first LED 23A, and FIG. As shown by the arrow shown in, the light reflected from the reflector 13b is indirectly irradiated to the fluid flowing in the flow path 13a by being reflected by the reflector 13b in the flow path 13a.

第１の接続部材１７の内部には、第１の光源１６Ａ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が第１の光源１６Ａ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 first light source 16A is provided inside the first connecting member 17, and the flow paths 17a-1, 17a-2, 17b-1 as a second flow path communicating with one end of the flow path 13a. , 17b-2 are formed along the periphery of the first light source 16A. 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、第１の光源部１５Ａ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 first light source portion 15A 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。流路１７ａ−２は、流路１７ａ−１と連通されており（図５参照）、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、第１の光源１６Ａ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、第１のＬＥＤ２３Ａ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. The flow path 17a-2 communicates with the flow path 17a-1 (see FIG. 5) 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 first light source 16A. 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 first LED 23A.

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、第１の光源１６Ａ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第１の光源部１５Ａの周囲に配置されている。 As shown in FIGS. 2 and 3, the downstream flange 17b is a light source as a support portion that supports the flow path 17b-1, the flow path 17b-2, and the first light source 16A as the second flow path. It has a support portion 17b-3 and a support portion 17b-3. 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 first light source portion 15A provided inside the first connecting member 17.

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、第１の光源部１５Ａのカバー部材２１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、第１の光源１６Ａ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. In this way, the first connecting member 17 allows, for example, the fluid flowing from the flow path 13a of the flow path member 13 to flow along the cover member 21 of the first light source portion 15A, the flow path 17a-1, and the light source support portion 17b-. The flow path 17a-2 toward the outer peripheral side of No. 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 first light source 16A. 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.

図２に示すように、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。また、第２の接続部材１８は、第１の接続部材１７が有する第２の流路と同様に、第３の流路として、流路１７ａ−１及び流路１７ａ−２と、流路１７ｂ−１及び流路１７ｂ−２と、を有する。第２の接続部材１８が有する光源支持部１７ｂ−３には、第２の光源部１５Ｂが設けられている。 As shown in FIG. 2, 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. Further, the second connecting member 18 has the flow path 17a-1 and the flow path 17a-2 and the flow path 17b as the third flow path, similarly to the second flow path of the first connection member 17. It has -1 and a flow path 17b-2. The light source support portion 17b-3 included in the second connecting member 18 is provided with a second light source portion 15B.

図３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２及び図３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に収容された第１の光源１６Ａ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 FIG. 3, the fluid flowing into the flow path 13a of the flow path member 13 from the flow path of the upstream side flow path member 8 flows through the flow path 13a as shown by the arrows in FIGS. 2 and 3. The fluid flows out to the flow path of the downstream flow path member 9 via 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. 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 first light source 16A, it flows out to the downstream flow path member 9.

すなわち、流路１３ａにおいて第１の光源１６Ａ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、第１の光源１６Ａの発光面側に向かって流れ、第１の光源１６Ａ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、第１の光源１６Ａの発光面側から反対面側に流体が通り抜ける。 That is, the fluid sterilized by being irradiated with the ultraviolet rays emitted by the first light source 16A in the flow path 13a passes through the flow path 13a of the flow path member 13 and heads toward the light emitting surface side of the first light source 16A. Flows into the flow path 17a-1 along the light emitting surface of the first light source 16A, and flows through the first connecting member 17 through the flow path 17a-1, the flow path 17a-2, the flow path 17b-1, and the flow path. It passes through a plurality of paths of 17b-2 and 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 first The fluid passes from the light emitting surface side of the light source 16A to the opposite surface side.

このため、第１の光源１６Ａ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第１の光源１６Ａ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。 Therefore, the first light source 16A is 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. Is used to cool, albeit indirectly, efficiently. Further, the first light source 16A 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. By cooling the above, 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に収容された第１の光源１６Ａ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。第１の光源１６Ａ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、流体によって第１の光源１６Ａ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 equal to or higher than a predetermined value, such as aluminum or stainless steel, is provided between the first light source 16A housed in the light source support portion 17b-3 and the light source support portion 17b-3. Is preferable. The heat generated by the first light source 16A is transferred to the fluid flowing in the first connecting member 17 via the heat conductive member, and the fluid can cool the first light source 16A more efficiently.

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２に示した方向に限定されるものではなく、図１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、後述する変形例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 2, 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 modified examples described later.

また、図３では、流路部材１３は、流路１３ａにおける流体の流れ方向が、第１の光源部１５Ａの第１の光源１６Ａ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、第１の光源１６Ａ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 FIG. 3, the flow path member 13 is arranged so that the flow direction of the fluid in the flow path 13a is substantially perpendicular to the light emitting surface of the first light source 16A of the first light source unit 15A. The flow direction of the flow path 13a may be a predetermined angle with respect to the light emitting surface of the first light source 16A, 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円筒状に形成されており、流路部材１３を内部に収容することで、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２０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２０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 in a cylindrical shape by, for example, a metal material such as stainless steel, and by accommodating the flow path member 13 inside, it 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 20 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 20. 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４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. 4 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においてＩ−Ｉ断面を図中のＡ方向から見ると、図４に示すように、下流側フランジ１７ｂ及び第１の光源１６Ａが配置されている。図２におけるＩ−Ｉ断面をＡ方向から見たとき、下流側フランジ１７ｂは、図４に示すように、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、第１の光源１６Ａが、第１のＬＥＤ２３Ａ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 FIG. 2 from the direction A in the drawing, as shown in FIG. 4, the downstream flange 17b and the first light source 16A are arranged. When the I-I cross section in FIG. 2 is viewed from the A direction, the downstream flange 17b has a circular shape as shown in FIG. 4, and has a concave light source support portion 17b-3 near the center thereof. The light source support portion 17b-3 accommodates the first light source 16A so that the direction of irradiation of ultraviolet rays from the first LED 23A 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、第１のＬＥＤ２３Ａ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、第１の光源１６Ａを囲んだ周辺に第１の光源１６Ａ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 first LED 23A. 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 first light source 16A around the periphery surrounding the first light source 16A.

なお、第１の基板２４Ａ上に実装される第１のＬＥＤ２３Ａの個数、及び流路１７ｂ−１の個数は、図４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 the first LEDs 23A mounted on the first substrate 24A and the number of the flow paths 17b-1 are not limited to the number shown in FIG. 4, and may be changed as necessary. ..

（流体殺菌装置の要部のＩ−Ｉ断面（Ｂ方向））
図５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. 5 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においてＩ−Ｉ断面を図中のＢ方向から見ると、図５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におけるＩ−Ｉ断面を図中のＢ方向から見たとき、上流側フランジ１７ａは、図５に示すように、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 FIG. 2 from the B direction in the drawing, as shown in FIG. 5, the upstream flange 17a and the light source 16 are arranged. When the I-I cross section in FIG. 2 is viewed from the B direction in the drawing, the upstream flange 17a has a circular shape as shown in FIG. 5, and has a circular cross-section that communicates with the flow path 13a near the center thereof. 17a-1 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とが連結されることで、図５に示す各流路１７ａ−２の放射状に延びる先端部分と、この先端部分と位置が対応する図４に示す各流路１７ｂ−１とがそれぞれ接続される。 The first connecting member 17 has a tip portion extending radially from each flow path 17a-2 shown in FIG. 5 by connecting a pair of upstream flanges 17a and a downstream flange 17b, and the tip portion and position thereof. Is connected to each of the flow paths 17b-1 shown in FIG. 4 corresponding to the above.

（第１の光源及び第２の光源におけるＬＥＤの配置）
上述した第１の光源部１５Ａが有する第１の光源１６Ａと同様に、第２の光源部１５Ｂは、第２の光源１６Ｂを有する。以下、第１の光源１６Ａと第２の光源１６Ｂとの違いについて説明する。 (Arrangement of LEDs in the first light source and the second light source)
Similar to the first light source 16A included in the first light source unit 15A described above, the second light source unit 15B has a second light source 16B. Hereinafter, the difference between the first light source 16A and the second light source 16B will be described.

図６は、実施形態に係る流体殺菌装置１の第１の光源１６Ａ及び第２の光源１６Ｂを説明するための模式図である。図７は、実施形態に係る流体殺菌装置１の第１の光源１６Ａ及び第２の光源１６Ｂの変形例１を説明するための模式図である。図８は、実施形態に係る流体殺菌装置１の第１の光源１６Ａ及び第２の光源１６Ｂの変形例２を説明するための模式図である。図６〜図８は、それぞれ、第１の接続部材１７側から第１の光源１６Ａ及び第２の光源１６Ｂを透過して見た図である。 FIG. 6 is a schematic diagram for explaining the first light source 16A and the second light source 16B of the fluid sterilizer 1 according to the embodiment. FIG. 7 is a schematic view for explaining a modification 1 of the first light source 16A and the second light source 16B of the fluid sterilizer 1 according to the embodiment. FIG. 8 is a schematic view for explaining a modification 2 of the first light source 16A and the second light source 16B of the fluid sterilizer 1 according to the embodiment. 6 to 8 are views of the first light source 16A and the second light source 16B transmitted from the first connecting member 17 side, respectively.

図６（ａ）に示すように、第１の光源１６Ａは、２つの第１のＬＥＤ２３Ａが配置された第１の基板２４Ａを有する。２つの第１のＬＥＤ２３Ａは、第１の基板２４Ａ上に仮想上の正多角形Ｐである正方形を投影したときに、正方形における一方の対角線（図６中の水平線）上の２つの頂点に配置されている。 As shown in FIG. 6A, the first light source 16A has a first substrate 24A on which two first LEDs 23A are arranged. The two first LEDs 23A are arranged at two vertices on one diagonal (horizontal line in FIG. 6) of the square when a square which is a virtual regular polygon P is projected onto the first substrate 24A. Has been done.

図６（ｂ）に示すように、第２の光源１６Ｂは、２つの第２のＬＥＤ２３Ｂが配置された第２の基板２４Ｂを有する。２つの第２のＬＥＤ２３Ｂは、上述した第１のＬＥＤ２３Ａと同様に、第２の基板２４Ｂ上に仮想上の正多角形Ｐである正方形を投影したとき、正方形における他方の対角線上（図６中の鉛直線上）の２つの頂点に配置されている。したがって、実施形態は、合計４つの第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを用いる構成である。 As shown in FIG. 6B, the second light source 16B has a second substrate 24B on which two second LEDs 23B are arranged. Similar to the first LED23A described above, the two second LEDs 23B are on the other diagonal line of the square when a square which is a virtual regular polygon P is projected onto the second substrate 24B (in FIG. 6). It is located at two vertices (on the vertical line of). Therefore, the embodiment is configured to use a total of four first LED23A and second LED23B.

そして、図６（ａ）及び図６（ｂ）に示すように、第２の基板２４Ｂは、第１の基板２４Ａと構成が同一であり、第１の基板２４Ａの向き（姿勢）に対して、正方形の中心Ｏまわりに９０°回転させて配置されている。このため、第１の光源１６Ａの第１のＬＥＤ２３Ａの配置と、第２の光源１６Ｂの第２のＬＥＤ２３Ｂの配置は、中心Ｏまわりにずらされることにより、第１の光源１６Ａと第２の光源１６Ｂが互いに対向する同一平面（以下、単に同一平面と称する。）に対して非対称になっている。言い換えると、第１の基板２４Ａと第２の基板２４Ｂは、同一平面に対して互いに対向するように配置されている。 Then, as shown in FIGS. 6A and 6B, the second substrate 24B has the same configuration as the first substrate 24A, with respect to the orientation (posture) of the first substrate 24A. , It is arranged so as to be rotated by 90 ° around the center O of the square. Therefore, the arrangement of the first LED 23A of the first light source 16A and the arrangement of the second LED 23B of the second light source 16B are shifted around the center O, so that the first light source 16A and the second light source are arranged. 16B is asymmetric with respect to the same plane facing each other (hereinafter, simply referred to as the same plane). In other words, the first substrate 24A and the second substrate 24B are arranged so as to face each other with respect to the same plane.

このように、第２の光源１６Ｂは、正方形の中心Ｏまわりに対する第２の基板２４Ｂの向きを除いて、第１の光源１６Ａと構成が同一であり、第１の基板２４Ａにおける第１のＬＥＤ２３Ａの配置と等しく第２のＬＥＤ２３Ｂが配置された第２の基板２４Ｂを有する。つまり、第１の光源１６Ａ及び第２の光源１６Ｂにおいて、第１のＬＥＤ２３Ａが設けられた第１の基板２４Ａと、第２のＬＥＤ２３Ｂが設けられた第２の基板２４Ｂとが共通化されている。また、第１の光源１６Ａ及び第２の光源１６Ｂは、例えば、正方形の中心Ｏ、第１の基板２４Ａ及び第２の基板２４Ｂの中心Ｏが、流路部材１３の流路１３ａの中心軸上に位置するように配置されている。 As described above, the second light source 16B has the same configuration as the first light source 16A except for the orientation of the second substrate 24B with respect to the center O of the square, and the first LED 23A on the first substrate 24A. It has a second substrate 24B in which the second LED 23B is arranged in the same manner as the arrangement of the above. That is, in the first light source 16A and the second light source 16B, the first substrate 24A provided with the first LED 23A and the second substrate 24B provided with the second LED 23B are shared. .. Further, in the first light source 16A and the second light source 16B, for example, the center O of the square, the center O of the first substrate 24A and the second substrate 24B are on the central axis of the flow path 13a of the flow path member 13. It is arranged so that it is located in.

図６（ｃ）に示すように、同一平面上に２つの第１のＬＥＤ２３Ａと２つの第２のＬＥＤ２３Ｂを投影したとき、第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂは、仮想上の正多角形Ｐの頂点に交互に配置されている。ここで、正多角形Ｐの頂点に交互に配置とは、正多角形における頂点の配列方向（周方向）において交互に配置されることを指す。このように流路１３ａの両端において、第１のＬＥＤ２３Ａの配置と第２のＬＥＤ２３Ｂの配置とが非対称に異なることで、流路部材１３の流路１３ａ内（流路断面）における照度が均一化され、流路１３ａ内を流れる流体に対する紫外線の照射効率が高められる。 As shown in FIG. 6C, when the two first LEDs 23A and the two second LEDs 23B are projected on the same plane, the first LED 23A and the second LED 23B are virtual regular polygons P. They are arranged alternately at the vertices of. Here, alternately arranging the vertices of the regular polygon P means that they are arranged alternately in the arrangement direction (circumferential direction) of the vertices in the regular polygon. In this way, the arrangement of the first LED 23A and the arrangement of the second LED 23B are asymmetrically different at both ends of the flow path 13a, so that the illuminance in the flow path 13a (flow path cross section) of the flow path member 13 becomes uniform. Therefore, the irradiation efficiency of ultraviolet rays on the fluid flowing in the flow path 13a is enhanced.

変形例１として、例えば、正多角形Ｐが正六角形の場合、図７（ａ）に示すように、第１の光源１６Ａでは、３つの第１のＬＥＤ２３Ａが、第１の基板２４Ａ上に投影された正六角形の６つの頂点に１つおきに配置されている。同様に、第２の光源１６Ｂでは、図７（ｂ）に示すように、３つの第２のＬＥＤ２３Ｂが、第２の基板２４Ｂ上に投影された正六角形の６つの頂点に１つおきに配置されている。 As a modification 1, for example, when the regular polygon P is a regular hexagon, as shown in FIG. 7A, in the first light source 16A, three first LEDs 23A are projected onto the first substrate 24A. Every other six vertices of the regular hexagon are arranged. Similarly, in the second light source 16B, as shown in FIG. 7B, three second LEDs 23B are arranged at every other six vertices of the regular hexagon projected on the second substrate 24B. Has been done.

そして、第２の基板２４Ｂは、第１の基板２４Ａの向きに対して、正六角形の中心Ｏまわりに１８０°回転させて配置されている。このため、３つの第１のＬＥＤ２３Ａと、３つの第２のＬＥＤ２３Ｂは、同一平面に対して非対称に配置されている。図７（ｃ）に示すように、同一平面上に３つの第１のＬＥＤ２３Ａと３つの第２のＬＥＤ２３Ｂを投影したとき、第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂは、正多角形Ｐの頂点に交互に配置されている。 The second substrate 24B is arranged so as to be rotated by 180 ° around the center O of the regular hexagon with respect to the orientation of the first substrate 24A. Therefore, the three first LEDs 23A and the three second LEDs 23B are arranged asymmetrically with respect to the same plane. As shown in FIG. 7C, when the three first LEDs 23A and the three second LEDs 23B are projected on the same plane, the first LED 23A and the second LED 23B are at the vertices of the regular polygon P. They are arranged alternately.

変形例１によれば、実施形態と同様に、流路１３ａ内の流体に対する紫外線の照射効率が高められ、合計６つの第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを用いることで、実施形態と比べて照度、積算光量が高められる。 According to the first modification, the illuminance efficiency of the ultraviolet rays to the fluid in the flow path 13a is enhanced as in the embodiment, and by using a total of six first LED 23A and second LED 23B, as compared with the embodiment. Illuminance and integrated light intensity are increased.

変形例２として、例えば、正多角形Ｐが正八角形の場合、図８（ａ）に示すように、第１の光源１６Ａでは、４つの第１のＬＥＤ２３Ａが、第１の基板２４Ａ上に投影された正八角形の８つの頂点に１つおきに配置されている。同様に、第２の光源１６Ｂでは、図８（ｂ）に示すように、４つの第２のＬＥＤ２３Ｂが、第２の基板２４Ｂ上に投影された正八角形の８つの頂点に１つおきに配置されている。 As a modification 2, for example, when the regular polygon P is a regular octagon, as shown in FIG. 8A, in the first light source 16A, four first LEDs 23A are projected onto the first substrate 24A. Every other eight vertices of the regular octagon are arranged. Similarly, in the second light source 16B, as shown in FIG. 8B, four second LEDs 23B are arranged at every other eight vertices of the regular octagon projected on the second substrate 24B. Has been done.

そして、第２の基板２４Ｂは、第１の基板２４Ａの向きに対して、正八角形の中心Ｏまわりに４５°回転させて配置されている。このため、４つの第１のＬＥＤ２３Ａと、４つの第２のＬＥＤ２３Ｂは、同一平面に対して非対称に配置されている。図８（ｃ）に示すように、同一平面上に４つの第１のＬＥＤ２３Ａと４つの第２のＬＥＤ２３Ｂを投影したとき、第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂは、正多角形Ｐの頂点に交互に配置されている。 The second substrate 24B is arranged so as to be rotated by 45 ° around the center O of the regular octagon with respect to the orientation of the first substrate 24A. Therefore, the four first LEDs 23A and the four second LEDs 23B are arranged asymmetrically with respect to the same plane. As shown in FIG. 8C, when four first LEDs 23A and four second LEDs 23B are projected on the same plane, the first LED 23A and the second LED 23B are located at the vertices of the regular polygon P. They are arranged alternately.

変形例２によれば、実施形態と同様に、流路１３ａ内の流体に対する紫外線の照射効率が高められ、合計８つの第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを用いることで、変形例１と比べて照度、積算光量が高められる。なお、第１の光源１６Ａ及び第２の光源１６Ｂは、正八角形よりも頂点が多い他の正多角形Ｐが適用されることで第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂの合計個数が増やされてもよい。 According to the second modification, the illuminance efficiency of the ultraviolet rays to the fluid in the flow path 13a is enhanced as in the embodiment, and by using a total of eight first LEDs 23A and the second LED 23B, as compared with the first modification. The illuminance and integrated light intensity are increased. The total number of the first LED 23A and the second LED 23B is increased by applying another regular polygon P having more vertices than the regular octagon to the first light source 16A and the second light source 16B. May be good.

図９は、実施形態に係る流体殺菌装置１の第１の光源１６Ａ及び第２の光源１６Ｂの変形例３を説明するための模式図である。図１０は、実施形態に係る流体殺菌装置１の第１の光源１６Ａ及び第２の光源１６Ｂの変形例４を説明するための模式図である。 FIG. 9 is a schematic view for explaining a modification 3 of the first light source 16A and the second light source 16B of the fluid sterilizer 1 according to the embodiment. FIG. 10 is a schematic diagram for explaining a modification 4 of the first light source 16A and the second light source 16B of the fluid sterilizer 1 according to the embodiment.

また、変形例３として、図９（ａ）に示すように、第１の光源１６Ａは、図７に示した変形例１と同様に３つの第１のＬＥＤ２３Ａが正六角形の６つの頂点に１つおきに配置されると共に、更に１つの頂点に第１のＬＥＤ２３Ａが配置されている。したがって、第１の光源１６Ａは、４つの第１のＬＥＤ２３Ａを有しており、正六角形の隣り合う頂点に連続して配置された第１のＬＥＤ２３Ａを含む。同様に、図９（ｂ）に示すように、第２の光源１６Ｂは、変形例１と同様に３つの第２のＬＥＤ２３Ｂが正六角形の６つの頂点に１つおきに配置されると共に、更に１つの頂点に第２のＬＥＤ２３Ｂが配置されている。したがって、第２の光源１６Ｂは、４つの第２のＬＥＤ２３Ｂを有しており、正六角形の隣り合う頂点に連続して配置された第２のＬＥＤ２３Ｂを含む。 Further, as a modification 3, as shown in FIG. 9A, the first light source 16A has three first LEDs 23A at six vertices of a regular hexagon, similarly to the modification 1 shown in FIG. The first LED 23A is arranged at every other vertex and the first LED 23A is further arranged at one apex. Therefore, the first light source 16A has four first LEDs 23A and includes a first LED 23A that is continuously arranged at adjacent vertices of a regular hexagon. Similarly, as shown in FIG. 9B, in the second light source 16B, three second LEDs 23B are arranged at every other six vertices of the regular hexagon as in the first modification, and further. A second LED 23B is arranged at one apex. Therefore, the second light source 16B has four second LEDs 23B and includes a second LED 23B that is continuously arranged at adjacent vertices of a regular hexagon.

そして、第２の基板２４Ｂは、第１の基板２４Ａの向きに対して、正六角形の中心Ｏまわりに１８０°回転させて配置されている。このため、第１の光源１６Ａと第２の光源１６Ｂにおいて、４つの第１のＬＥＤ２３Ａと４つの第２のＬＥＤ２３Ｂが、同一平面に対して非対称に配置されると共に、互いに対向して配置された第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを含む。 The second substrate 24B is arranged so as to be rotated by 180 ° around the center O of the regular hexagon with respect to the orientation of the first substrate 24A. Therefore, in the first light source 16A and the second light source 16B, the four first LEDs 23A and the four second LEDs 23B are arranged asymmetrically with respect to the same plane and opposed to each other. Includes a first LED 23A and a second LED 23B.

変形例３においても、実施形態と同様の効果が得られ、合計８つの第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを用いることで、変形例１と比べて照度、積算光量が高められる。 In the third modification, the same effect as that of the embodiment can be obtained, and by using a total of eight first LEDs 23A and the second LED 23B, the illuminance and the integrated light amount can be increased as compared with the first modification.

変形例４として、図１０（ａ）に示すように、第１の光源１６Ａは、第１の基板２４Ａ上に投影された同心の２つの正多角形Ｐである２つの正方形の頂点に、４つの第１のＬＥＤ２３Ａが配置されている。同様に、第２の光源１６Ｂは、図１０（ｂ）に示すように、第２の基板２４Ｂ上に投影された同心の２つの正多角形Ｐである２つの正方形の頂点に、４つの第２のＬＥＤ２３Ｂが配置されている。図１０（ｃ）に示すように、変形例４においても、同心の２つの正多角形Ｐの各々の頂点に、４つの第１のＬＥＤ２３Ａ及び４つの第２のＬＥＤ２３Ｂが交互に配置されている。 As a modification 4, as shown in FIG. 10A, the first light source 16A is located at the vertices of two squares, which are two concentric regular polygons P projected on the first substrate 24A. One first LED 23A is arranged. Similarly, as shown in FIG. 10B, the second light source 16B has four fourth vertices at the vertices of two squares, which are two concentric regular polygons P projected onto the second substrate 24B. 2 LEDs 23B are arranged. As shown in FIG. 10 (c), also in the modified example 4, four first LEDs 23A and four second LEDs 23B are alternately arranged at the vertices of each of the two concentric regular polygons P. ..

変形例４においても、実施形態と同様の効果が得られ、合計８つの第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂを用いることで、変形例１と比べて照度、積算光量が高められる。なお、変形例４では、第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂが、同心の２つの正多角形Ｐの頂点に配置されたが、同心になる３つ以上の正多角形Ｐに配置されてもよい。また、変形例４においても、変形例３のように互いに対向して配置された第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂを含むように構成されてもよい。 Also in the modified example 4, the same effect as that of the embodiment can be obtained, and by using a total of eight first LED 23A and the second LED 23B, the illuminance and the integrated light amount can be increased as compared with the modified example 1. In the fourth modification, the first LED 23A and the second LED 23B are arranged at the vertices of two concentric regular polygons P, but even if they are arranged at three or more concentric regular polygons P. Good. Further, the modified example 4 may also be configured to include the first LED 23A and the second LED 23B arranged so as to face each other as in the modified example 3.

また、変形例４における第１の光源１６Ａ及び第２の光源１６Ｂでは、４つの第１のＬＥＤ２３Ａ及び４つの第２のＬＥＤ２３Ｂが、図１０中の横方向と縦方向とに２つずつ配置されたが、例えば、４つの第１のＬＥＤ２３Ａが横方向に並べられ、４つの第２のＬＥＤ２３Ｂが縦方向に並べられてもよい。また、変形例４では、同心の２つの正多角形Ｐのうち、内側の正多角形Ｐと外側の正多角形Ｐとが相似形にされたが、内側の正多角形Ｐと外側の正多角形Ｐとが異なるように、第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂが配置されてもよい。また、第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂは、同心の複数の正多角形Ｐのうちのいずれかの正多角形Ｐを中心Ｏまわりに回転させたように、各頂点に配置されてもよい。また、第１のＬＥＤ２３Ａ及び第２のＬＥＤ２３Ｂは、複数の正多角形Ｐの頂点に加えて、第１の基板２４Ａ上及び第２の基板２４Ｂ上の任意の位置に配置されてもよい。 Further, in the first light source 16A and the second light source 16B in the modified example 4, four first LEDs 23A and four second LEDs 23B are arranged in the horizontal direction and the vertical direction in FIG. However, for example, the four first LEDs 23A may be arranged in the horizontal direction, and the four second LEDs 23B may be arranged in the vertical direction. Further, in the modified example 4, of the two concentric regular polygons P, the inner regular polygon P and the outer regular polygon P are similar figures, but the inner regular polygon P and the outer regular polygon P are similar. The first LED 23A and the second LED 23B may be arranged so as to be different from the polygon P. Further, the first LED 23A and the second LED 23B may be arranged at each vertex so that any one of the plurality of concentric regular polygons P is rotated around the center O. .. Further, the first LED 23A and the second LED 23B may be arranged at arbitrary positions on the first substrate 24A and the second substrate 24B in addition to the vertices of the plurality of regular polygons P.

上述したように実施形態の流体殺菌装置１において、第１の光源１６Ａと第２の光源１６Ｂとが互いに対向する同一の平面上に複数の第１のＬＥＤ２３Ａと複数の第２のＬＥＤ２３Ｂを投影したとき、第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂは、仮想上の正多角形Ｐの頂点に配置されている。特に、第１のＬＥＤ２３Ａと第２のＬＥＤ２３Ｂは、正多角形Ｐの頂点に交互に配置されている。これにより、流路部材１３の流路１３ａ内（流路断面）における照度が均一化され、流路１３ａ内を流れる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, in the fluid sterilizer 1 of the embodiment, the plurality of first LED 23A and the plurality of second LED 23B are projected on the same plane in which the first light source 16A and the second light source 16B face each other. At this time, the first LED 23A and the second LED 23B are arranged at the vertices of the virtual regular polygon P. In particular, the first LED 23A and the second LED 23B are alternately arranged at the vertices of the regular polygon P. As a result, the illuminance in the flow path 13a (cross section of the flow path) of the flow path member 13 is made uniform, and the irradiation efficiency of ultraviolet rays to the fluid flowing in the flow path 13a can be improved.

また、実施形態の流体殺菌装置１における第２の光源１６Ｂは、第１の基板２４Ａにおける第１のＬＥＤ２３Ａの配置と等しく第２のＬＥＤ２３Ｂが配置された第２の基板２４Ｂを有しており、第２の基板２４Ｂが、第１の基板２４Ａに対して正多角形Ｐの中心Ｏまわりに回転されて設けられている。このように第１の光源１６Ａ及び第２の光源１６Ｂにおいて、第１のＬＥＤ２３Ａが設けられた第１の基板２４Ａと、第２のＬＥＤ２３Ｂが設けられた第２の基板２４Ｂとが共通化されて用いられることで、流体殺菌装置１の製造コストの増大を抑えることができる。 Further, the second light source 16B in the fluid sterilizer 1 of the embodiment has a second substrate 24B in which the second LED 23B is arranged in the same manner as the arrangement of the first LED 23A in the first substrate 24A. The second substrate 24B is provided so as to be rotated around the center O of the regular polygon P with respect to the first substrate 24A. In this way, in the first light source 16A and the second light source 16B, the first substrate 24A provided with the first LED 23A and the second substrate 24B provided with the second LED 23B are shared. By using it, it is possible to suppress an increase in the manufacturing cost of the fluid sterilizer 1.

また、実施形態の流体殺菌装置１は、流路部材１３の一端に接続されると共に第１の光源１６Ａが設けられ、第１の光源１６Ａの周囲に配置されて第１の流路としての流路１３ａに連通する第２の流路として第２の流路としての流路１７ａ−１、１７ａ−２、１７ｂ−１、１７ｂ−２とを有する第１の接続部材１７と、流路部材１３の他端に接続されると共に第２の光源１６Ｂが設けられ、第２の光源１６Ｂの周囲に配置されて第１の流路としての流路１３ａに連通する第３の流路として流路１７ａ−１及び流路１７ａ−２と、流路１７ｂ−１及び流路１７ｂ−２と、を有する第２の接続部材１８と、備える。このように第１の接続部材１７及び第２の接続部材１８が用いられることで、第１の光源１６Ａ及び第２の光源１６Ｂを、他の冷却手段を用いることなく、効率的に冷却することができる。また、他の冷却手段を用いることなく、第１の光源１６Ａ及び第２の光源１６Ｂの周囲に設けられた複数の流路を通過する流体を用いて第１の光源１６Ａ及び第２の光源１６Ｂ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。 Further, the fluid sterilizer 1 of the embodiment is connected to one end of the flow path member 13 and is provided with the first light source 16A, and is arranged around the first light source 16A to flow as the first flow path. A first connecting member 17 having flow paths 17a-1, 17a-2, 17b-1, 17b-2 as a second flow path as a second flow path communicating with the path 13a, and a flow path member 13 A second light source 16B is provided at the other end of the second light source 16B, and the flow path 17a is arranged around the second light source 16B and communicates with the flow path 13a as the first flow path. A second connecting member 18 having -1 and a flow path 17a-2, and a flow path 17b-1 and a flow path 17b-2 is provided. By using the first connecting member 17 and the second connecting member 18 in this way, the first light source 16A and the second light source 16B can be efficiently cooled without using other cooling means. Can be done. Further, the first light source 16A and the second light source 16B are used by using fluids that pass through a plurality of flow paths provided around the first light source 16A and the second light source 16B without using other cooling means. By cooling the above, for example, another cooling member such as a heat radiation fin becomes unnecessary. As a result, the fluid sterilizer 1 can be miniaturized.

また、実施形態の流体殺菌装置１における流路部材１３は、紫外線透過性を有しており、第１の光源１６Ａ及び第２の光源１６Ｂが発した紫外線を流路１３ａ内へ反射する反射板１３ｂが設けられている。これにより、流路１３ａ内の流体への紫外線の照射効率を高めることができる。 Further, the flow path member 13 in the fluid sterilizer 1 of the embodiment has ultraviolet light transmission, and is a reflector that reflects the ultraviolet rays emitted by the first light source 16A and the second light source 16B into the flow path 13a. 13b is provided. As a result, the efficiency of irradiating the fluid in the flow path 13a with ultraviolet rays can be increased.

（流体殺菌装置の変形例）
図１１は、実施形態に係る流体殺菌装置の要部の変形例５を示す断面図である。変形例５において、実施形態と同一の構成部材には、実施形態と同一符号を付して説明を省略する。 (Modified example of fluid sterilizer)
FIG. 11 is a cross-sectional view showing a modified example 5 of a main part of the fluid sterilizer according to the embodiment. In the fifth modification, the same components as those in the embodiment are designated by the same reference numerals as those in the embodiment, and the description thereof will be omitted.

上述した実施形態では、上流側流路部材８及び下流側流路部材９が、流路部材１３の流路１３ａ内の流れ方向に沿って流体を供給及び排出するように、第１の接続部材１７及び第２の接続部材１８に接続されたが、上流側流路部材８及び下流側流路部材９の位置が限定されるものではない。例えば、図１１に示すように、上流側流路部材８が、流路部材１３の流路１３ａ内の流れ方向に交差する方向から流体を供給するように第２の接続部材１８の上方に接続され、下流側流路部材９が、流路部材１３の流路１３ａ内の流れ方向に交差する方向へ流体を排出するように第１の接続部材１７の下方に接続されてもよい。 In the above-described embodiment, the first connecting member is such that the upstream side flow path member 8 and the downstream side flow path member 9 supply and discharge the fluid along the flow direction in the flow path 13a of the flow path member 13. Although it is connected to the 17 and the second connecting member 18, the positions of the upstream side flow path member 8 and the downstream side flow path member 9 are not limited. For example, as shown in FIG. 11, the upstream flow path member 8 is connected above the second connecting member 18 so as to supply the fluid from a direction intersecting the flow direction in the flow path 13a of the flow path member 13. The downstream flow path member 9 may be connected below the first connecting member 17 so as to discharge the fluid in a direction intersecting the flow direction in the flow path 13a of the flow path member 13.

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 反射板（反射面）
１６Ａ 第１の光源
１６Ｂ 第２の光源
１７ 第１の接続部材
１８ 第２の接続部材
１７ａ−１、１７ａ−２、１７ｂ−１、１７ｂ−２ 流路（第２の流路、第３の流路）
２３Ａ 第１のＬＥＤ（第１の発光素子）
２３Ｂ 第２のＬＥＤ（第２の発光素子）
２４Ａ 第１の基板
２４Ｂ 第２の基板
Ｏ 中心
Ｐ 正多角形 1 Fluid sterilizer 13 Flow path member 13a Flow path (first flow path)
13b Reflector (reflecting surface)
16A First light source 16B Second light source 17 First connecting member 18 Second connecting member 17a-1, 17a-2, 17b-1, 17b-2 Flow path (second flow path, third flow) Road)
23A 1st LED (1st light emitting element)
23B 2nd LED (2nd light emitting element)
24A 1st substrate 24B 2nd substrate O center P regular polygon

Claims (5)

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複数の第１の発光素子を有する第１の光源と；
前記第１の流路の前記流路断面に対向し、かつ、前記第１の光源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複数の第２の発光素子を有する第２の光源と；
を具備し、
前記第１の光源と前記第２の光源は、前記流路部材の前記第１の流路の両端に配置され、
前記第１の光源と前記第２の光源が互いに対向する同一の平面上に前記複数の第１の発光素子と前記複数の第２の発光素子を投影したとき、前記第１の発光素子と前記第２の発光素子は、仮想上の正多角形の頂点に交互に配置されている、流体殺菌装置。 With a flow path member having a first flow path for flowing a fluid;
A first light emitting element of the first flow path, which is arranged to face the cross section of the flow path intersecting the flow direction of the fluid and has a plurality of first light emitting elements for irradiating the first flow path with ultraviolet rays. With a light source;
It has a plurality of second light emitting elements that are arranged so as to face the cross section of the first flow path and face the first light source and irradiate the first flow path with ultraviolet rays. With a second light source;
Equipped with
The first light source and the second light source are arranged at both ends of the first flow path of the flow path member.
When the plurality of first light emitting elements and the plurality of second light emitting elements are projected on the same plane where the first light source and the second light source face each other, the first light emitting element and the said The second light emitting element is a fluid sterilizer that is alternately arranged at the vertices of a virtual regular polygon. 前記第１の発光素子と前記第２の発光素子は、同心の複数の前記正多角形の頂点に交互に配置されている、
請求項１に記載の流体殺菌装置。 The first light emitting element and the second light emitting element are alternately arranged at a plurality of concentric vertices of the regular polygon.
The fluid sterilizer according to claim 1. 前記第１の光源は、前記第１の発光素子が配置された第１の基板を有し、
前記第２の光源は、前記第１の基板における前記第１の発光素子の配置と等しく前記第２の発光素子が配置された第２の基板を有し、前記第２の基板が、前記第１の基板に対して前記正多角形の中心まわりに回転されて設けられている、
請求項１または２に記載の流体殺菌装置。 The first light source has a first substrate on which the first light emitting element is arranged.
The second light source has a second substrate on which the second light emitting element is arranged in the same manner as the arrangement of the first light emitting element on the first substrate, and the second substrate is the second substrate. It is provided so as to be rotated around the center of the regular polygon with respect to the substrate of 1.
The fluid sterilizer according to claim 1 or 2. 前記流路部材の一端に接続されると共に前記第１の光源が設けられ、前記第１の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、を有する第１の接続部材と；
前記流路部材の他端に接続されると共に前記第２の光源が設けられ、前記第２の光源の周囲に配置されて前記第１の流路に連通する第３の流路と、を有する第２の接続部材と；
を更に具備する、
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。 A second flow path that is connected to one end of the flow path member and is provided with the first light source, and is arranged around the first light source and communicates with the first flow path. With the connecting member of 1;
It has a third flow path that is connected to the other end of the flow path member and is provided with the second light source, is arranged around the second light source, and communicates with the first flow path. With the second connecting member;
Further equipped,
The fluid sterilizer according to any one of claims 1 to 3. 前記流路部材は、紫外線透過性を有し、前記第１の光源及び前記第２の光源が発した紫外線を前記第１の流路内へ反射する反射面が設けられている、
請求項１ないし４のいずれか１項に記載の流体殺菌装置。 The flow path member has ultraviolet light transmittance, and is provided with a reflecting surface that reflects the ultraviolet rays emitted by the first light source and the second light source into the first flow path.
The fluid sterilizer according to any one of claims 1 to 4.
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