JP2018008213A - Fluid sterilizer - Google Patents

Fluid sterilizer Download PDF

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JP2018008213A
JP2018008213A JP2016138534A JP2016138534A JP2018008213A JP 2018008213 A JP2018008213 A JP 2018008213A JP 2016138534 A JP2016138534 A JP 2016138534A JP 2016138534 A JP2016138534 A JP 2016138534A JP 2018008213 A JP2018008213 A JP 2018008213A
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flow path
light source
fluid
light
water
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JP6458779B2 (en
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剛雄 加藤
Takeo Kato
剛雄 加藤
亮彦 田内
Akihiko Tauchi
亮彦 田内
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Toshiba Lighting and Technology Corp
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Toshiba Lighting and Technology Corp
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Priority to CN201720253555.6U priority patent/CN206654758U/en
Priority to TW106109493A priority patent/TWI733781B/en
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Abstract

PROBLEM TO BE SOLVED: To efficiently obtain sterilization effect.SOLUTION: A fluid sterilizer 1 is provided with a flow passage member 3 forming a flow passage 3a and a light source 6 emitting ultraviolet, and includes a light source unit 5 irradiating fluid flowing through the flow passage 3a with the ultraviolet, and a flow passage 51a-1, a flow passage 51a-2, a flow passage 52a-1 and a flow passage 52a-2 which are connected to the flow passage 3a and formed around the light source 6. A direction where the ultraviolet of a light source 62 mounted on the light source unit 5 is emitted and a direction where the fluid flowing through the flow passage 3a flows are substantially opposed to each other, and the fluid flowing through the flow passage 51a-1, the flow passage 51a-2, the flow passage 52a-1 and the flow passage 52a-2 flows from the light emitting surface side of the light source 6 to a side substantially opposed to the light emitting surface side of the light source 6.SELECTED DRAWING: Figure 2

Description

本発明の実施形態は、流体殺菌装置に関する。   Embodiments described herein relate generally to a fluid sterilizer.

発光素子が発する殺菌力を有する波長の光線を、流路を流れる流体（例えば、水）に照射することで、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では、光源として、紫外線を発するＬＥＤ（Light Emitting Diode）が実装された基板を有するものがある。   A fluid sterilization apparatus that sterilizes a fluid by irradiating a fluid (for example, water) flowing through a flow path with a light beam having a sterilizing power emitted from a light emitting element is known. In this type of fluid sterilization apparatus, there is one having a substrate on which an LED (Light Emitting Diode) emitting ultraviolet rays is mounted as a light source.

特開２０１４−２３３６４６号公報JP 2014-233646 A

ところで、流路を流れる流体に対してＬＥＤによる紫外線等を照射し、流体を殺菌する場合に、より高い殺菌効果を得るために、ＬＥＤの出力を高め、効率的に流体に照射することが望ましい。しかし、ＬＥＤへの投入電力を上げたり、ＬＥＤの実装数を増やしたりするだけでは、発熱による温度制限があるＬＥＤは発光に伴う発熱により発光効率が低下し、高い出力が得られないことから、効率的に殺菌効果を得ることが困難である。   By the way, when irradiating the fluid flowing through the flow path with ultraviolet rays or the like by the LED to sterilize the fluid, it is desirable to increase the output of the LED and efficiently irradiate the fluid in order to obtain a higher sterilization effect. . However, simply by increasing the input power to the LED or increasing the number of LEDs mounted, the LED with a temperature limit due to heat generation is reduced in light emission efficiency due to heat generation due to light emission, and high output cannot be obtained. It is difficult to obtain a sterilizing effect efficiently.

そこで、本発明は、効率的に殺菌効果を得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。   Then, an object of this invention is to provide the fluid sterilizer which can acquire the sterilization effect efficiently.

実施形態に係る流体殺菌装置は、第１の流路を形成する流路部材と、紫外線を発する光源を備え、前記第１の流路に流れる流体に前記紫外線を照射する光源ユニットと、前記第１の流路と接続され前記光源の周囲に形成される第２の流路とを有し、記前記光源ユニットに搭載される前記光源の紫外線を発する方向および前記第１の流路を流れる前記流体の流れる方向が略対向しており、前記第２の流路を流れる前記流体は前記光源の発光面側から前記光源の発光面と対向する側へ流れる。   A fluid sterilization apparatus according to an embodiment includes a flow path member that forms a first flow path, a light source that emits ultraviolet light, a light source unit that irradiates the ultraviolet light to a fluid flowing in the first flow path, and the first A second flow path connected to the first flow path and formed around the light source, wherein the light source mounted on the light source unit emits ultraviolet light and flows through the first flow path. The flow direction of the fluid is substantially opposed, and the fluid flowing through the second flow path flows from the light emitting surface side of the light source to the side facing the light emitting surface of the light source.

本発明によれば、効率的に殺菌効果を得ることができる。   According to the present invention, a bactericidal effect can be obtained efficiently.

第１の実施形態に係る流体殺菌装置の全体を示す模式図である。It is a mimetic diagram showing the whole fluid sterilizer concerning a 1st embodiment. 第１の実施形態に係る流体殺菌装置の要部を示す側面図である。It is a side view which shows the principal 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体が流路を流れる方向を示す断面図である。It is sectional drawing which shows the direction where a fluid flows through a flow path in the principal 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のうち、流体が流れる方向に対して直交するＩ−Ｉ断面をＡ方向から見た断面図である。It is sectional drawing which looked at the II cross section orthogonal to the direction through which the fluid flows among the principal parts of the fluid sterilizer which concerns on 1st Embodiment from the A direction. 第１の実施形態に係る流体殺菌装置の要部のうち、流体が流れる方向に対して直交するＩ−Ｉ断面をＢ方向から見た断面図である。It is sectional drawing which looked at the II cross section orthogonal to the direction through which the fluid flows among the principal parts of the fluid sterilizer which concerns on 1st Embodiment from the B direction. 第２の実施形態に係る流体殺菌装置の要部を示す側面図である。It is a side view which shows the principal 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側面図である。It is a side view which shows the principal 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側面図である。It is a side view which shows the principal 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側面図である。It is a side view which shows the principal 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、第１の流路を形成する流路部材と、紫外線を発する光源を備え、第１の流路に流れる流体に紫外線を照射する光源ユニットと、第１の流路と接続され光源の周囲に形成される第２の流路とを有し、光源ユニットに搭載される光源の紫外線を発する方向および第１の流路を流れる流体の流れる方向が略対向しており、第２の流路を流れる流体は光源の発光面側から光源の発光面と対向する側へ流れる。   A fluid sterilization apparatus according to an embodiment described below includes a flow path member that forms a first flow path, a light source that emits ultraviolet light, and a light source unit that irradiates the fluid flowing in the first flow path with ultraviolet light. A second flow path connected to the first flow path and formed around the light source. The direction of emitting ultraviolet rays of the light source mounted on the light source unit and the direction of flow of the fluid flowing through the first flow path are The fluids that are substantially opposed and flow through the second flow path flow from the light emitting surface side of the light source to the side facing the light emitting surface of the light source.

また、以下で説明する実施形態に係る流体殺菌装置は、流路部材の第１の流路の両端それぞれに接続された複数の光源ユニットを具備する。   Moreover, the fluid sterilizer according to the embodiment described below includes a plurality of light source units connected to both ends of the first flow path of the flow path member.

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の流路の内径Ｓ１と、第１の流路と第２の流路との接続部分の内径Ｓ２とは、Ｓ１＞Ｓ２を満たす。   In the fluid sterilizer according to the embodiment described below, the inner diameter S1 of the first flow path and the inner diameter S2 of the connection portion between the first flow path and the second flow path satisfy S1> S2. Fulfill.

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光源ユニットは、複数の第２の流路を有する。   Moreover, the light source unit in the fluid sterilizer according to the embodiment described below has a plurality of second flow paths.

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、例を示すに過ぎず、発明を限定するものではない。また、以下の各実施形態の説明において、同一の構成には同一符号を付与し、既出の場合に説明を省略する。また、以下の各実施形態は、発明の趣旨を逸脱せず、矛盾しない範囲内で適宜組合せることができる。   Hereinafter, a fluid sterilizer according to an embodiment will be described with reference to the drawings. In addition, the following embodiment is only an example and does not limit the invention. Further, in the following description of each embodiment, the same reference numerals are given to the same components, and the description will be omitted in the case of the above. The following embodiments can be combined as appropriate without departing from the spirit of the invention and within a consistent range.

（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の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側面図である。図３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体が流路を流れる方向を示す断面図である。 (First embodiment)
FIG. 1 is a schematic diagram showing the entire fluid sterilizer according to the first embodiment. FIG. 2 is a side view showing a main part of the fluid sterilizer according to the first embodiment. FIG. 3 is a cross-sectional view showing the direction in which the fluid flows through the flow path 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）を照射する流体を供給する給水タンク８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９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、上流側が、継手等の連結部材２２を介して、給水タンク８に連結されたポンプ１２および流路部材２３に連結されている。また、流体殺菌装置１は、上流側と同様に、下流側が、継手等の連結部材２４を介して、回収タンク９に連通された流量調整機構１４および流路部材２５に連結されている。 (Configuration of fluid sterilizer)
As shown in FIG. 1, the fluid sterilization apparatus 1 according to the first embodiment is connected to a water supply tank 8 that supplies a fluid that irradiates ultraviolet rays (ultraviolet light) and collects fluid that has been irradiated with ultraviolet rays. The tank 9 is connected. As shown in FIG.1 and FIG.2, as for the fluid sterilizer 1, the upstream side is connected with the pump 12 and the flow path member 23 which were connected with the water supply tank 8 via the connection members 22, such as a coupling. In addition, the fluid sterilizer 1 is connected to the flow rate adjusting mechanism 14 and the flow path member 25 communicated with the recovery tank 9 through a connecting member 24 such as a joint on the downstream side, similarly to the upstream side.

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８内の水を殺菌処理するために用いられる。本実施形態は、流体として、例えば、上水等の水に適用される。   The fluid sterilizer 1 is used, for example, in a drinking water supply device to sterilize water in the water supply tank 8. This embodiment is applied to water, such as tap water, as a fluid.

図２に示すように、流体殺菌装置１は、連結部２と、第１の流路としての流路３ａを形成する流路部材３と、カバー４と、光源ユニット５と、を有する。   As shown in FIG. 2, the fluid sterilizer 1 includes a connecting portion 2, a flow path member 3 that forms a flow path 3 a as a first flow path, a cover 4, and a light source unit 5.

連結部２は、連結部材２２を介して流路部材２３と連結され、ポンプ１２により流路部材２３からの水を流体殺菌装置１内へ流入させる流路を形成する。流路部材３は、連結部２と連結され、流体殺菌装置内１において殺菌対象の水の流路３ａを形成する筒状の部材である。   The connecting portion 2 is connected to the flow path member 23 via the connection member 22, and forms a flow path through which water from the flow path member 23 flows into the fluid sterilizer 1 by the pump 12. The flow path member 3 is a cylindrical member that is connected to the connecting portion 2 and forms a flow path 3a of water to be sterilized in the fluid sterilization apparatus 1.

流路部材３は、紫外線反射率が高く、紫外線による劣化がない素材で形成されていることが好ましく、本実施形態では、透明な石英管の外表面全体に紫外線反射率が高い反射部３ｂを形成したものを用いる。反射部３ｂは、後述の光源ユニット５から出射された紫外線を、流路部材３の流路３ａ内で反射させる反射部材の一例であり、例えばシリカ膜である。   The flow path member 3 is preferably formed of a material that has a high ultraviolet reflectance and is not deteriorated by ultraviolet rays. In this embodiment, the reflective member 3b having a high ultraviolet reflectance is provided on the entire outer surface of the transparent quartz tube. The formed one is used. The reflection portion 3b is an example of a reflection member that reflects ultraviolet rays emitted from the light source unit 5 described later in the flow path 3a of the flow path member 3, and is, for example, a silica film.

なお、流路部材３に形成する反射部３ｂは、シリカ膜に限らず、透明な石英管の外表面全体に形成したアルミニウム蒸着膜であってもよい。また、流路部材３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：ＰＴＥＦ、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、反射部３ｂは、流路部材３の外表面ではなく、内周面全体に形成されてもよい。   The reflective portion 3b formed on the flow path member 3 is not limited to the silica film, but may be an aluminum vapor deposition film formed on the entire outer surface of the transparent quartz tube. The flow path member 3 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 reflecting portion 3b may be formed not on the outer surface of the flow path member 3 but on the entire inner peripheral surface.

カバー４は、流路部材３をその外周から覆う筒状の部材である。   The cover 4 is a cylindrical member that covers the flow path member 3 from the outer periphery thereof.

光源ユニット５は、第１連結部５１と、第２連結部５２と、光源６と、紫外線透光部材７と、を有する。第１連結部５１は、第２の流路として、流路５１ａ−１と、流路５１ａ−２と、を有する。第１連結部５１及び第２連結部５２は、熱伝導率が所定以上の母材、例えば腐食性に強いステンレス鋼で形成されている。しかし、第１連結部５１及び第２連結部５２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であってもよく、セラミックスやフィラーが充填されている高熱伝導率樹脂等であってもよい。   The light source unit 5 includes a first connecting part 51, a second connecting part 52, a light source 6, and an ultraviolet light transmissive member 7. The 1st connection part 51 has the flow path 51a-1 and the flow path 51a-2 as a 2nd flow path. The first connecting part 51 and the second connecting part 52 are made of a base material having a thermal conductivity of a predetermined value or more, for example, stainless steel that is highly corrosive. However, the first connecting part 51 and the second connecting part 52 are not limited to stainless steel, and may be a composite material of aluminum having a high thermal conductivity, such as a high thermal conductivity resin filled with ceramics or filler. There may be.

流路５１ａ−１は、第１連結部５１の中心付近に位置し、流路３ａと接続される。流路５１ａ−２は、流路５１ａ−１と接続され、第１連結部５１の中心から外方へ延びる。第１連結部５１は、流路部材３及びカバー４と連結され、流路３ａと、流路５１ａ−１及び流路５１ａ−２とを接続する。   The flow path 51a-1 is located near the center of the first connecting portion 51 and is connected to the flow path 3a. The flow path 51 a-2 is connected to the flow path 51 a-1 and extends outward from the center of the first connecting portion 51. The 1st connection part 51 is connected with the flow path member 3 and the cover 4, and connects the flow path 3a, the flow path 51a-1, and the flow path 51a-2.

第２連結部５２は、第２の流路として、流路５２ａ−１と、流路５２ａ−２と、流路５２ａ−１及び流路５２ａ−２で囲まれる領域に位置する凹状の光源収容部５２ｂと、を有する。第２連結部５２は、光源収容部５２ｂに光源６を収納し、例えば光源収容部５２ｂの開口部が紫外線透光部材７により覆われた状態で第１連結部５１と連結され、流路５２ａ−１と、流路５１ａ−２とを接続する。   The 2nd connection part 52 is the concave light source accommodation located in the area | region enclosed by the flow path 52a-1, the flow path 52a-2, the flow path 52a-1, and the flow path 52a-2 as a 2nd flow path. Part 52b. The second connecting portion 52 stores the light source 6 in the light source receiving portion 52b, and is connected to the first connecting portion 51 in a state where, for example, the opening of the light source receiving portion 52b is covered with the ultraviolet light transmissive member 7, and the flow path 52a. -1 and the flow path 51a-2 are connected.

また、第２連結部５２は、連結部材２４を介して流路部材２５と連結され、流路３ａと接続する、紫外線透光部材７の中心付近の流路５１ａ−１、光源収容部５２ｂの外周へ向かう流路５１ａ−２、光源収容部５２ｂの外周付近を通過する流路５２ａ−１、光源６の発光面の反対面側で光源収容部５２ｂの外周から中心付近へ至る流路５２ａ−２を経由した水を、流量調整機構１４を介して流体殺菌装置１外へ流出させる流路を形成する。   The second connecting portion 52 is connected to the flow path member 25 via the connecting member 24, and is connected to the flow path 3a. The flow path 51a-1 near the center of the ultraviolet light transmissive member 7 and the light source accommodating portion 52b are connected. A flow path 51a-2 toward the outer periphery, a flow path 52a-1 that passes near the outer periphery of the light source accommodating portion 52b, and a flow path 52a- that extends from the outer periphery of the light source accommodating portion 52b to the vicinity of the center on the opposite side of the light emitting surface of the light source 6. The flow path through which the water passing through 2 flows out of the fluid sterilizer 1 through the flow rate adjusting mechanism 14 is formed.

光源６は、基板６１に紫外線を出射するＬＥＤ（Light Emitting Diode）素子６２（以下、単に“ＬＥＤ６２”と表記する）を実装したモジュールである。基板６１は、金属材料を母材として形成されている。基板６１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ＬＥＤ６２が設けられている。なお、基板６１は、金属材料に限らず、例えばアルミナ等のセラミックスを母材としてもよい。また、光源６が有する発光素子はＬＥＤ６２に限らず、ＬＤ（Laser diode）等、その他の半導体素子であってもよい。   The light source 6 is a module in which an LED (Light Emitting Diode) element 62 (hereinafter simply referred to as “LED 62”) that emits ultraviolet rays is mounted on a substrate 61. The substrate 61 is formed using a metal material as a base material. Although not shown, a desired conductive pattern (wiring pattern) is formed on the substrate 61 via an insulating layer, and the LED 62 is provided on the conductive pattern. The substrate 61 is not limited to a metal material, and may be a base material made of ceramics such as alumina. The light emitting element included in the light source 6 is not limited to the LED 62 but may be other semiconductor elements such as an LD (Laser diode).

光源６は、図示しない電源から電力が供給され、ＬＥＤ６２を発光させる。光源６は、ＬＥＤ６２の発光面側が流路３ａ内を流れる水の進行方向と対向する位置関係となる、例えば光源６の基板６１が流路３ａに対して略垂直面となるように配置され、ＬＥＤ６２の発光による紫外線を、流路３ａ内を流れて光源６へ近付く水に対して照射する。換言すれば、光源ユニット６に搭載される光源６２の紫外線を発する方向および流路３ａ（第１の流路）を流れる流体の流れる方向が略対向している。ここで、『ＬＥＤ６２の発光面側』とは、単にＬＥＤ６２の発光面のみを示しているのではなく、ＬＥＤ６２が光を放出する方向全体、すなわち、基板６１にＬＥＤ６２が設けられていない方向を除く意味である。また、「光源６２の紫外線を発する方向および流路３ａを流れる流体の流れる方向が略対向」とは、完全に対向しているもののみに限定されるものではなく、例えば、光源６２の紫外線を発する方向と流路３ａを流れる流体の流れる方向のなす角度（鋭角）が±１０°まで許容される意味である。   The light source 6 is supplied with electric power from a power source (not shown) and causes the LED 62 to emit light. The light source 6 is disposed such that the light emitting surface side of the LED 62 faces the traveling direction of the water flowing in the flow path 3a, for example, the substrate 61 of the light source 6 is substantially perpendicular to the flow path 3a. Ultraviolet light generated by the light emitted from the LED 62 is applied to water that flows through the flow path 3 a and approaches the light source 6. In other words, the direction in which the light source 62 mounted on the light source unit 6 emits ultraviolet rays and the direction in which the fluid flowing through the flow path 3a (first flow path) flows are substantially opposed. Here, “the light emitting surface side of the LED 62” does not simply indicate only the light emitting surface of the LED 62, but excludes the entire direction in which the LED 62 emits light, that is, the direction in which the LED 62 is not provided on the substrate 61. Meaning. Further, “the direction in which the light source 62 emits the ultraviolet light and the direction in which the fluid flowing through the flow path 3a is substantially opposed” is not limited to a completely opposed one. This means that the angle (acute angle) formed between the direction of emission and the direction of flow of the fluid flowing through the flow path 3a is allowed to be ± 10 °.

なお、光源６の基板６１は、流路３ａに対して略垂直面となる位置関係に限らず、流路３ａを流れる水に対して対向する位置関係であれば、いずれの位置関係でもよい。また、ＬＥＤ６２は、殺菌効果が比較的高い波長２７５ｎｍ近辺にピーク波長をもつものが好ましいが、殺菌効果を有する波長域であればいずれでも用いることができる。   The substrate 61 of the light source 6 is not limited to a positional relationship that is a substantially vertical plane with respect to the flow path 3a, and may be any positional relationship as long as the positional relationship is opposed to the water flowing through the flow path 3a. The LED 62 preferably has a peak wavelength in the vicinity of a wavelength of 275 nm, which has a relatively high bactericidal effect, but any wavelength region having a bactericidal effect can be used.

紫外線透光部材７は、光源６、すなわち、基板６１に対して略平行に配置される紫外線透光性を有する板状部材であり、流路３ａ内を流れて光源６へ近付く水に対して光源６が出射する紫外線が照射されるように紫外線を透過させる。   The ultraviolet light transmissive member 7 is a plate member having an ultraviolet light transmissive property disposed substantially parallel to the light source 6, that is, the substrate 61, and against water that flows in the flow path 3 a and approaches the light source 6. The ultraviolet rays are transmitted so that the ultraviolet rays emitted from the light source 6 are irradiated.

光源６から出射された紫外線は、紫外線透光部材７を透過し、流路３ａ内を流れる水に対して光源６からの直射光が照射されると共に、図２に示す矢印のように、流路３ａ内において反射部３ｂで反射して流路３ａ内を流れる水に対して光源６からの反射光が間接的に照射される。   The ultraviolet light emitted from the light source 6 passes through the ultraviolet light transmissive member 7 and is irradiated with direct light from the light source 6 to the water flowing in the flow path 3a, and flows as indicated by arrows in FIG. In the path 3a, the reflected light from the light source 6 is indirectly irradiated to the water reflected by the reflecting portion 3b and flowing in the flow path 3a.

また、図３に示すように、流路部材２３が形成する流路から流体殺菌装置１内へ流入した水は、図示の矢印のように、流路３ａ内を流れ、流路５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２を経由し、流体殺菌装置１外の流路部材２５が形成する流路へ流出する。流体殺菌装置１内へ流入した水は、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２の経路を通過する際に、光源収容部５２ｂに収容された光源６が発する熱を奪い、流体殺菌装置１外へ流出する。   Also, as shown in FIG. 3, the water that has flowed into the fluid sterilizer 1 from the flow path formed by the flow path member 23 flows through the flow path 3a as indicated by the arrows in the drawing, and the flow paths 51a-1, It flows out to the flow path formed by the flow path member 25 outside the fluid sterilizer 1 via the flow path 51a-2, the flow path 52a-1, and the flow path 52a-2. The water that has flowed into the fluid sterilizer 1 generates heat generated by the light source 6 accommodated in the light source accommodating portion 52b when passing through the channels 51a-2, 52a-1, and 52a-2. It steals and flows out of the fluid sterilizer 1.

すなわち、流路３ａにおいて光源６から出射された紫外線の照射により殺菌された水は、光源６の発光面側に発光面の直行方向に形成した流路３ａから発光面方向の流路５１ａ−１へ流入し、光源ユニット５内を流路５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−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。光源ユニット５内の流路５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２の複数の経路は、光源６を囲んだ周辺に設けられ、光源６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６は、他の冷却手段を用いることなく、流路５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２の複数の経路を通過する水を用いて、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５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２の複数の経路を通過する水を用いて光源６の冷却を行うことで、例えば、フィンなどの他の冷却部材を設ける必要が無い。よって、流体殺菌装置１の小型化を図ることができる。   That is, the water sterilized by the irradiation of ultraviolet rays emitted from the light source 6 in the flow path 3a is changed from the flow path 3a formed in the direction perpendicular to the light emitting surface on the light emitting surface side of the light source 6 to the flow path 51a-1 in the light emitting surface direction. , Passes through the plurality of paths of the flow path 51a-1, the flow path 51a-2, the flow path 52a-1, and the flow path 52a-2 through the light source unit 5 and flows out to the opposite surface side of the light emitting surface. . A plurality of channels 51 a-1, 51 a-2, 52 a-1, and 52 a-2 in the light source unit 5 are provided around the light source 6, and the light emitting surface side of the light source 6 Fluid passes through to the opposite side. Thereby, the light source 6 uses the water which passes the some path | route of the flow path 51a-1, the flow path 51a-2, the flow path 52a-1, and the flow path 52a-2, without using another cooling means. Indirect but efficient cooling. In addition, the light source 6 is cooled using water passing through the plurality of paths of the flow path 51a-1, the flow path 51a-2, the flow path 52a-1, and the flow path 52a-2 without using other cooling means. By doing so, it is not necessary to provide other cooling members such as fins. Therefore, size reduction of the fluid sterilizer 1 can be achieved.

なお、光源収容部５２ｂに収容された光源６と、光源収容部５２ｂとの間に熱伝導率が所定以上の熱伝導部材を設けたりした方がよく、例えば、アルミニウム、ステンレスなどがよい。   In addition, it is better to provide a heat conductive member having a thermal conductivity of a predetermined value or more between the light source 6 accommodated in the light source accommodating part 52b and the light source accommodating part 52b, and for example, aluminum, stainless steel, etc. are preferable.

なお、流体殺菌装置１内において水が流れる方向は、図３に図示の方向に限られず、図３とは反対の方向であってもよい。すなわち、流路部材２５が形成する流路から流体殺菌装置１内へ流入した水が、流路５２ａ−２、流路５２ａ−１、流路５１ａ−２、流路５１ａ−１を経由して流路３ａ内を流れて、流体殺菌装置１外の流路部材２３が形成する流路へ流出するとしてもよい。また、図２及び図３では、流路部材３により形成される流路３ａは、光源ユニット５の光源６の発光面に対して略垂直であるとしているが、垂直に限らず、光源６の発光面に対して、所定の角度を有する構成、あるいは、自在角度を取る構成であってもよい。   In addition, the direction in which water flows in the fluid sterilizer 1 is not limited to the direction illustrated in FIG. 3, and may be a direction opposite to that in FIG. 3. That is, the water flowing into the fluid sterilizer 1 from the flow path formed by the flow path member 25 passes through the flow path 52a-2, the flow path 52a-1, the flow path 51a-2, and the flow path 51a-1. It may flow in the flow path 3a and flow out to the flow path formed by the flow path member 23 outside the fluid sterilizer 1. 2 and 3, the flow path 3 a formed by the flow path member 3 is substantially perpendicular to the light emitting surface of the light source 6 of the light source unit 5. The structure which has a predetermined angle with respect to a light emitting surface, or the structure which takes a free angle may be sufficient.

（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の要部のうち、流体が流れる方向に対して直交するＩ−Ｉ断面をＡ方向から見た断面図である。 (II cross section (direction A) of the main part of the fluid sterilizer)
FIG. 4: is sectional drawing which looked at the II cross section orthogonal to the direction through which the fluid flows among the principal parts of the fluid sterilizer which concerns on 1st Embodiment from the A direction.

すなわち、図２及び図３において、Ｉ−Ｉ断面を図示のＡ方向に見ると、図４に示すように、第２連結部５２及び光源６が現れる。図２及び図３において、Ｉ−Ｉ断面を図示のＡ方向に見た場合、図４に示すように、第２連結部５２は、円状であり、その中心付近に、凹状の光源収容部５２ｂを有する。そして、光源収容部５２ｂには、基板６１上にＬＥＤ６２が実装された光源６が、光源６の紫外線照射方向が流路３ａ側になるように収容されている。また、光源収容部５２ｂの周囲には、複数の流路５２ａ−１が設けられている。   That is, in FIG. 2 and FIG. 3, when the II cross section is viewed in the direction A, the second connecting portion 52 and the light source 6 appear as shown in FIG. 2 and 3, when the II cross section is viewed in the direction A shown in FIG. 4, as shown in FIG. 4, the second connecting portion 52 is circular, and a concave light source accommodating portion is provided near the center thereof. 52b. And the light source 6 in which the LED 62 is mounted on the substrate 61 is accommodated in the light source accommodating part 52b so that the ultraviolet irradiation direction of the light source 6 is on the channel 3a side. A plurality of flow paths 52a-1 are provided around the light source housing 52b.

複数の流路５２ａ−１は、第２連結部５２において、光源６を囲んだ周辺に光源６の発光面側から反対面側まで貫通する貫通孔により形成される。   The plurality of flow paths 52 a-1 are formed by through holes that penetrate from the light emitting surface side of the light source 6 to the opposite surface side around the light source 6 in the second connecting portion 52.

なお、基板６１に実装されるＬＥＤ６２の数は、図４に図示の数に限られるものではない。また、流路５２ａ−１の数は、図４に図示の数に限られるものではない。   The number of LEDs 62 mounted on the substrate 61 is not limited to the number shown in FIG. Further, the number of the flow paths 52a-1 is not limited to the number shown in FIG.

（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の要部のうち、流体が流れる方向に対して直交するＩ−Ｉ断面をＢ方向から見た断面図である。 (II cross section (direction B) of the main part of the fluid sterilizer)
FIG. 5: is sectional drawing which looked at the II cross section orthogonal to the direction through which the fluid flows among the principal parts of the fluid sterilizer which concerns on 1st Embodiment from the B direction.

すなわち、図２及び図３において、Ｉ−Ｉ断面を図示のＢ方向に見ると、図５に示すように、第１連結部５１及び紫外線透光部材７が現れる。図２及び図３において、Ｉ−Ｉ断面の図示のＢ方向に見た場合、図５に示すように、第１連結部５１は、円状であり、その中心付近に流路３ａと接続する円状の流路５１ａ−１と、流路５１ａ−１から第１連結部５１の外方へ放射状に延びる複数の流路５１ａ−２と、を有する。また、第１連結部５１において、流路５１ａ−１及び流路５１ａ−２よりも第２連結部５２により近い側に、紫外線透光部材７が設けられている。   That is, in FIG. 2 and FIG. 3, when the II cross section is viewed in the B direction shown in the figure, the first connecting portion 51 and the ultraviolet light transmitting member 7 appear as shown in FIG. 2 and 3, when viewed in the B direction of the II cross section, as shown in FIG. 5, the first connecting portion 51 is circular and is connected to the flow path 3a in the vicinity of the center thereof. A circular flow channel 51a-1 and a plurality of flow channels 51a-2 extending radially from the flow channel 51a-1 to the outside of the first connecting portion 51 are provided. Moreover, in the 1st connection part 51, the ultraviolet light transmissive member 7 is provided in the side closer to the 2nd connection part 52 than the flow path 51a-1 and the flow path 51a-2.

第１連結部５１と、第２連結部５２とを連結した際に、図５に示す各流路５１ａ−２の放射状の先端部分と、それぞれ位置が対応する図４に示す各流路５２ａ−１とが接続されることとなる。   When the first connecting part 51 and the second connecting part 52 are connected, the radial tip portions of the respective flow paths 51a-2 shown in FIG. 5 and the respective flow paths 52a- shown in FIG. 1 is connected.

第１の実施形態は、例えば、流体殺菌装置１は、紫外線を出射するＬＥＤ６２が基板６１上に実装された光源６及び光源６の発光面側に紫外線透光部材７を配した光源ユニット５と、光源ユニット５の発光面側に、流路３ａ内を流れて光源ユニット５へ近付く水に対して光源６から照射された紫外線を流路３ａの壁面で反射する流路部材３とを有し、光源ユニット５は、光源６を囲んだ周辺に光源６の発光面側から反対面側に貫通する、流路３ａと略同軸の流路５１ａ−１、流路５１ａ−２、流路５２ａ−１、流路５２ａ−２の経路を複数形成している。   In the first embodiment, for example, the fluid sterilizer 1 includes a light source 6 in which an LED 62 that emits ultraviolet light is mounted on a substrate 61, and a light source unit 5 in which an ultraviolet light transmitting member 7 is disposed on the light emitting surface side of the light source 6. The light-emitting surface side of the light source unit 5 has a flow path member 3 that reflects the ultraviolet rays irradiated from the light source 6 to the water that flows in the flow path 3a and approaches the light source unit 5 from the wall surface of the flow path 3a. The light source unit 5 penetrates from the light emitting surface side of the light source 6 to the opposite surface side around the light source 6 and is substantially coaxial with the flow channel 3a, the flow channel 51a-1, the flow channel 51a-2, and the flow channel 52a-. 1. A plurality of paths of the flow path 52a-2 are formed.

よって、第１の実施形態によれば、例えば、光源６からの紫外線は、流路３ａ内で反射して流路３ａ内に再び照射され、流路３ａ外へ漏出するロスを低減できるため、効率的に殺菌対象の水に照射され、高い殺菌効果を得ることができる。また、第１の実施形態によれば、例えば、光源６が発する熱は、光源６を囲んだ周辺に形成されている光源６の発光面側から反対面側に貫通する複数の流路を通過する水により奪われ、流体殺菌装置１外へ排出されるので、殺菌対象の水を用いて効率的に光源６を冷却してＬＥＤ６２の温度上昇を抑制し、光源６のＬＥＤ６２の出力効率低下を抑制できる。また、第１の実施形態によれば、他の構成に比べてより効果的にＬＥＤ６２の冷却を行うことができる。また、第１の実施形態によれば、光源６においてＬＥＤ６２の実装数を増加させることも可能になるため、流体殺菌装置１の殺菌効果能力を向上させることができる。   Therefore, according to the first embodiment, for example, the ultraviolet light from the light source 6 is reflected in the flow path 3a and is irradiated again into the flow path 3a, so that loss leaking out of the flow path 3a can be reduced. The water to be sterilized can be efficiently irradiated and a high sterilizing effect can be obtained. Further, according to the first embodiment, for example, the heat generated by the light source 6 passes through a plurality of flow paths penetrating from the light emitting surface side to the opposite surface side of the light source 6 formed around the light source 6. Since it is taken away by the water to be discharged and discharged outside the fluid sterilizer 1, the light source 6 is efficiently cooled using the water to be sterilized to suppress the temperature rise of the LED 62, and the output efficiency of the LED 62 of the light source 6 is reduced. Can be suppressed. In addition, according to the first embodiment, the LED 62 can be cooled more effectively than other configurations. In addition, according to the first embodiment, it is possible to increase the number of LEDs 62 mounted in the light source 6, so that the sterilization effect capability of the fluid sterilization apparatus 1 can be improved.

（第２の実施形態）
図６は、第２の実施形態に係る流体殺菌装置の要部を示す側面図である。 (Second Embodiment)
FIG. 6 is a side view showing the main part of the fluid sterilizer according to the second embodiment.

第２の実施形態に係る流体殺菌装置１Ａは、第１の実施形態に係る流体殺菌装置１における流路部材３の外表面全体に形成した反射部３ｂに代えて、流路３ａを形成する流路部材３Ａに透明な石英管を用い、カバー４に代えて、アルミニウム等で形成した筒状の反射部４Ａを用いて流路部材３Ａをその外周から覆うようにする。なお、反射部４Ａの内径は、流路部材３Ａの外径よりも大きければ、いずれの大きさであってもよい。その他、光源６から出射された紫外線が反射部材で反射することができる構成であればいずれでもよい。   The fluid sterilization apparatus 1A according to the second embodiment is a flow that forms a flow path 3a instead of the reflecting portion 3b formed on the entire outer surface of the flow path member 3 in the fluid sterilization apparatus 1 according to the first embodiment. A transparent quartz tube is used as the path member 3A, and the channel member 3A is covered from the outer periphery by using a cylindrical reflecting portion 4A formed of aluminum or the like instead of the cover 4. The inner diameter of the reflecting portion 4A may be any size as long as it is larger than the outer diameter of the flow path member 3A. In addition, any configuration may be used as long as the ultraviolet light emitted from the light source 6 can be reflected by the reflecting member.

第２の実施形態は、例えば、流体殺菌装置１Ａは、光源ユニット５の光源６が水に照射する紫外線を、流路３ａの外周で反射する反射部４Ａを有する。よって、第２の実施形態によれば、例えば、光源６からの紫外線は、反射部４Ａ内で反射して反射部４Ａ内に留まり、反射部４Ａ外へ漏出するロスを低減できるため、効率的に殺菌対象の水に照射され、高い殺菌効果を得ることができる。また、第２の実施形態によれば、例えば、流路部材３Ａに透明な石英管を用い、反射性を有する反射部４Ａを用いて流路部材３Ａをその外周から覆うことから、流路部材３Ａに反射加工を施す必要がなく、流体殺菌装置１Ａの製造工程を簡略化できる。   In the second embodiment, for example, the fluid sterilizer 1 </ b> A includes a reflecting portion 4 </ b> A that reflects the ultraviolet rays that the light source 6 of the light source unit 5 irradiates with water on the outer periphery of the flow path 3 a. Therefore, according to the second embodiment, for example, the ultraviolet rays from the light source 6 are reflected in the reflecting portion 4A, remain in the reflecting portion 4A, and the loss that leaks out of the reflecting portion 4A can be reduced. It is irradiated with water to be sterilized and a high sterilizing effect can be obtained. Further, according to the second embodiment, for example, a transparent quartz tube is used as the flow path member 3A, and the flow path member 3A is covered from the outer periphery using the reflective portion 4A having reflectivity. There is no need to apply reflective processing to 3A, and the manufacturing process of the fluid sterilization apparatus 1A can be simplified.

（第３の実施形態）
上述の第１の実施形態に係る流体殺菌装置１及び第２の実施形態に係る流体殺菌装置１Ａでは、殺菌対象の水の流路３ａの下流側に光源ユニット５を設ける。しかし、これに限らず、流路３ａの上流側及び下流側、すなわち流路３ａの両端に、対向するように光源ユニット５−１及び光源ユニット５−２を設けてもよい。図７は、第３の実施形態に係る流体殺菌装置の要部を示す側面図である。 (Third embodiment)
In the fluid sterilization apparatus 1 according to the first embodiment and the fluid sterilization apparatus 1A according to the second embodiment, the light source unit 5 is provided on the downstream side of the water flow path 3a to be sterilized. However, the present invention is not limited to this, and the light source unit 5-1 and the light source unit 5-2 may be provided so as to be opposed to the upstream side and the downstream side of the flow path 3a, that is, both ends of the flow path 3a. FIG. 7 is a side view showing the main part of the fluid sterilizer according to the third embodiment.

図７に示すように、第３の実施形態に係る流体殺菌装置１Ｂは、光源ユニット５−１と、流路３ａを形成する流路部材３（または流路部材３Ａ）と、カバー４（または反射部４Ａ）と、光源ユニット５−２と、を有する。   As shown in FIG. 7, the fluid sterilizer 1B according to the third embodiment includes a light source unit 5-1, a flow path member 3 (or a flow path member 3A) that forms a flow path 3a, and a cover 4 (or 4A) and a light source unit 5-2.

光源ユニット５−１は、連結部材２２を介して流路部材２３と連結され、流路部材２３からの水を流体殺菌装置１Ｂ内へ流入させる流路を形成する。流路部材３は、光源ユニット５−１と連結され、流体殺菌装置内１Ｂにおいて殺菌対象の水の流路３ａを形成する。また、光源ユニット５−２は、連結部材２４を介して流路部材２５と連結され、流体殺菌装置１Ｂ内の水を流体殺菌装置１Ｂ外へ流出させる流路を形成する。   The light source unit 5-1 is connected to the flow path member 23 via the connection member 22, and forms a flow path for allowing water from the flow path member 23 to flow into the fluid sterilizer 1B. The flow path member 3 is connected to the light source unit 5-1, and forms a flow path 3a of water to be sterilized in the fluid sterilizer 1B. The light source unit 5-2 is connected to the flow path member 25 via the connection member 24, and forms a flow path for allowing water in the fluid sterilizer 1B to flow out of the fluid sterilizer 1B.

ここで、光源ユニット５−１及び光源ユニット５−２は、上述の第１の実施形態又は第２の実施形態に係る光源ユニット５と同様の構成である。   Here, the light source unit 5-1 and the light source unit 5-2 have the same configuration as the light source unit 5 according to the first embodiment or the second embodiment described above.

図７に示すように、流路部材２３から流体殺菌装置１Ｂ内に流入した水は、図示の矢印のように、光源ユニット５−１において、流路５２ａ−２、流路５２ａ−１、流路５１ａ−２及び流路５１ａ−１を経由して、流路３ａへ至る。流路部材２３から流体殺菌装置１Ｂ内に流入した水は、流路５２ａ−２及び流路５２ａ−１において光源６が発する熱を奪う。そして、光源ユニット５−１の流路５１ａ−２から流路５１ａ−１へ流入した水は、流路３ａを通過して光源ユニット５−２の流路５１ａ−１へ至るまでに、光源ユニット５−１及び光源ユニット５−２が出射する紫外線が照射されて殺菌される。   As shown in FIG. 7, the water that has flowed into the fluid sterilizer 1B from the flow path member 23 passes through the flow path 52a-2, the flow path 52a-1, and the flow in the light source unit 5-1. It reaches the flow path 3a via the path 51a-2 and the flow path 51a-1. The water that has flowed into the fluid sterilizer 1B from the flow path member 23 takes away heat generated by the light source 6 in the flow paths 52a-2 and 52a-1. Then, the water flowing into the flow path 51a-1 from the flow path 51a-2 of the light source unit 5-1 passes through the flow path 3a and reaches the flow path 51a-1 of the light source unit 5-2. The ultraviolet rays emitted from the light source 5-1 and the light source unit 5-2 are irradiated and sterilized.

そして、流路３ａから光源ユニット５−２の流路５１ａ−１へ至った水は、光源ユニット５−２において、流路５１ａ−１、流路５１ａ−２及び流路５２ａ−１を経由して流路５２ａ−２へ至る。光源ユニット５−２へ流入した水は、流路５２ａ−１及び流路５２ａ−２において光源６が発する熱を奪う。そして、光源ユニット５−２の流路５１ａ−２へ流入した水は、流路部材２５により形成される流路を経由して、流体殺菌装置１Ｂ外へ流出する。   And the water which reached the flow path 51a-1 of the light source unit 5-2 from the flow path 3a passes through the flow path 51a-1, the flow path 51a-2, and the flow path 52a-1 in the light source unit 5-2. To the flow path 52a-2. The water flowing into the light source unit 5-2 takes away heat generated by the light source 6 in the flow paths 52a-1 and 52a-2. And the water which flowed in into the flow path 51a-2 of the light source unit 5-2 flows out out of the fluid sterilizer 1B through the flow path formed by the flow path member 25.

第３の実施形態は、例えば、流体殺菌装置１Ｂは、流路３ａの両端に光源ユニット５（５Ａ）を有する。よって、第３の実施形態によれば、例えば、２つの光源ユニット５（５Ａ）を有することにより、１つの光源ユニット５（５Ａ）を有する場合と比較して、水の殺菌能力がさらに向上する。   In the third embodiment, for example, the fluid sterilizer 1B includes the light source units 5 (5A) at both ends of the flow path 3a. Therefore, according to the third embodiment, for example, by having two light source units 5 (5A), the water sterilization ability is further improved as compared with the case of having one light source unit 5 (5A). .

なお、第３の実施形態では、光源ユニットを２つ有する構成としたが、光源ユニットの個数は限定されるものではない。例えば、光源ユニットを３つ以上、複数有していてもよい。   Although the third embodiment has two light source units, the number of light source units is not limited. For example, three or more light source units may be provided.

（第４の実施形態）
図８は、第４の実施形態に係る流体殺菌装置の要部を示す側面図である。なお、図８は、要部以外の図示を省略している。第４の実施形態は、流体殺菌装置１Ｃにおいて、流路部材３により形成される流路３ａの内径Ｓ１と、流路３ａと光源ユニット５Ｃの第１連結部５１Ｃの流路５１ａ−１との接続部分の内径Ｓ２とが、Ｓ１＞Ｓ２を満たす。 (Fourth embodiment)
FIG. 8 is a side view showing the main part of the fluid sterilizer according to the fourth embodiment. In FIG. 8, illustrations other than the main parts are omitted. In the fourth embodiment, in the fluid sterilizer 1C, the inner diameter S1 of the flow path 3a formed by the flow path member 3, and the flow path 3a and the flow path 51a-1 of the first connection portion 51C of the light source unit 5C The inner diameter S2 of the connecting portion satisfies S1> S2.

図８に示すように、流体殺菌装置１Ｃ内に流入した水は、図示の矢印のように流路３ａを流れ、流路３ａと接続する流路５１ａ−１へ至る際に、流路５１ａ−１と流路３ａとの接続部分の内径Ｓ２が、流路３ａの内径Ｓ１より小さいので、流路５１ａ−１付近に水を集中させて紫外線の照射効率を向上させると共に、この接続部分付近で水の対流（渦）を発生させて、光源６が出射する紫外線が、対流する水に対してより長い時間にわたり照射される。よって、第４の実施形態によれば、殺菌対象の水が紫外線の照射が弱い箇所を通過することにより殺菌効果が低下することを抑制し、紫外線が満遍なく水へ照射され、効率よく、殺菌効果をより高めることができる。   As shown in FIG. 8, when the water that has flowed into the fluid sterilizer 1C flows through the flow path 3a as shown by the arrow in the figure and reaches the flow path 51a-1 connected to the flow path 3a, the flow path 51a- 1 is smaller than the inner diameter S1 of the flow path 3a, so that water is concentrated near the flow path 51a-1 to improve the irradiation efficiency of ultraviolet rays, and in the vicinity of this connection part. The convection (vortex) of water is generated, and the ultraviolet rays emitted from the light source 6 are irradiated to the convection water for a longer time. Therefore, according to the fourth embodiment, the water to be sterilized is prevented from being reduced in sterilization effect by passing through a portion where irradiation with ultraviolet rays is weak, and the ultraviolet rays are evenly irradiated to the water, and the sterilization effect is efficiently performed. Can be further enhanced.

（第５の実施形態）
図９は、第５の実施形態に係る流体殺菌装置の要部を示す側面図である。なお、図９は、要部以外の図示を省略している。第５の実施形態は、流体殺菌装置１Ｄにおいて、流路部材３により形成される流路３ａの内径Ｓ１と、流路３ａと光源ユニット５Ｄの第１連結部５１Ｄの流路５１ａ−３との接続部分の内径Ｓ３とが、Ｓ１＞Ｓ３の関係である。さらに、流路５１ａ−３から外方へ延びる流路５１ａ−４は、紫外線透光部材７から離れる方向に所定距離だけオフセットしている。 (Fifth embodiment)
FIG. 9 is a side view showing the main part of the fluid sterilizer according to the fifth embodiment. In FIG. 9, illustrations other than the main parts are omitted. In the fluid sterilizer 1D, the fifth embodiment includes an inner diameter S1 of the flow path 3a formed by the flow path member 3, and the flow path 3a and the flow path 51a-3 of the first connection portion 51D of the light source unit 5D. The inner diameter S3 of the connecting portion is in a relationship of S1> S3. Furthermore, the channel 51 a-4 extending outward from the channel 51 a-3 is offset by a predetermined distance in the direction away from the ultraviolet light transmitting member 7.

図９に示すように、流体殺菌装置１Ｄ内に流入した水は、図示の矢印のように流路３ａを流れ、流路３ａと接続する流路５１ａ−３へ至る際に、流路５１ａ−３と流路３ａとの接続部分の内径Ｓ３が流路３ａの内径Ｓ１より小さく、さらに、流路５１ａ−３から外方へ延びる流路５１ａ−４が紫外線透光部材７から所定距離だけオフセットしている。このため、流路５１ａ−３付近に水を集中させて紫外線の照射効率を向上させると共に、この接続部分及び紫外線透光部材７付近で水の対流（渦）を発生させて、光源６が出射する紫外線が、対流する水に対してより長い時間だけ照射される。よって、第５の実施形態によれば、さらに、殺菌対象の水が紫外線の照射が弱い箇所を通過することにより殺菌効果が低下することを防止し、紫外線が満遍なく水へ照射され、効率よく、殺菌効果をさらに高めることができる。   As shown in FIG. 9, when the water flowing into the fluid sterilizer 1D flows through the flow path 3a as shown by the arrow in the figure and reaches the flow path 51a-3 connected to the flow path 3a, the flow path 51a- 3 is smaller than the inner diameter S1 of the flow path 3a, and the flow path 51a-4 extending outward from the flow path 51a-3 is offset from the ultraviolet light transmitting member 7 by a predetermined distance. doing. For this reason, water is concentrated in the vicinity of the flow path 51a-3 to improve the irradiation efficiency of the ultraviolet rays, and convection (vortex) of water is generated in the vicinity of the connection portion and the ultraviolet light transmitting member 7 to emit the light source 6. The irradiating ultraviolet light is irradiated to the convection water for a longer time. Therefore, according to the fifth embodiment, further, the water to be sterilized is prevented from sterilizing effect by passing through a place where the irradiation of ultraviolet rays is weak, the ultraviolet rays are uniformly irradiated to the water, and efficiently, The bactericidal effect can be further enhanced.

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 the embodiments of the present invention have been described, the embodiments are presented as examples and are not intended to limit the scope of the present invention. The embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The embodiments and modifications thereof are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalents thereof.

１、１Ａ、１Ｂ、１Ｃ、１Ｄ 流体殺菌装置
２ 連結部
３、３Ａ 流路部材
３ａ 流路
３ｂ 反射部
４ カバー
４Ａ 反射部
５、５−１、５−２、５Ｃ、５Ｄ 光源ユニット
５１ 第１連結部
５１ａ−１、５１ａ−２、５１ａ−３、５１ａ−４ 流路
５２ 第２連結部
５２ａ−１、５２ａ−２ 流路
５２ｂ 光源収容部
６ 光源
６１ 基板
６２ ＬＥＤ
７ 紫外線透光部材 1, 1A, 1B, 1C, 1D Fluid sterilizer 2 Connecting portion 3, 3A Channel member 3a Channel 3b Reflector 4 Cover 4A Reflectors 5, 5-1, 5-2, 5C, 5D Light source unit 51 1st Connection part 51a-1, 51a-2, 51a-3, 51a-4 Flow path 52 2nd connection part 52a-1, 52a-2 Flow path 52b Light source accommodating part 6 Light source 61 Board | substrate 62 LED
7 Ultraviolet transparent member

Claims (4)

第１の流路を形成する流路部材と；
紫外線を発する光源を備え、前記第１の流路に流れる流体に前記紫外線を照射する光源ユニットと；
前記第１の流路と接続され前記光源の周囲に形成される第２の流路と；
を有し、
前記光源ユニットに搭載される前記光源の紫外線を発する方向および前記第１の流路を流れる前記流体の流れる方向が略対向しており、前記第２の流路を流れる前記流体は前記光源の発光面側から前記光源の発光面と対向する側へ流れる流体殺菌装置。 A flow path member forming a first flow path;
A light source unit that includes a light source that emits ultraviolet light, and irradiates the fluid flowing in the first flow path with the ultraviolet light;
A second flow path connected to the first flow path and formed around the light source;
Have
The direction of emitting ultraviolet light of the light source mounted on the light source unit and the direction of flow of the fluid flowing through the first flow path are substantially opposite to each other, and the fluid flowing through the second flow path emits light from the light source. A fluid sterilizer that flows from a surface side to a side facing a light emitting surface of the light source. 前記流路部材の前記第１の流路の両端それぞれに接続された複数の前記光源ユニットを具備する請求項１に記載の流体殺菌装置。   The fluid sterilizer according to claim 1, further comprising a plurality of the light source units connected to both ends of the first flow path of the flow path member. 前記第１の流路の内径Ｓ１と、前記第１の流路と前記第２の流路との接続部分の内径Ｓ２とは、Ｓ１＞Ｓ２を満たす請求項１又は２に記載の流体殺菌装置。   The fluid sterilizer according to claim 1 or 2, wherein an inner diameter S1 of the first flow path and an inner diameter S2 of a connection portion between the first flow path and the second flow path satisfy S1> S2. . 前記光源ユニットは、複数の前記第２の流路を有する請求項１ないし３のいずれか１項に記載の流体殺菌装置。   The fluid sterilizer according to any one of claims 1 to 3, wherein the light source unit includes a plurality of the second flow paths.
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