JP6789066B2 - Solenoid valve and beverage supply device - Google Patents

Solenoid valve and beverage supply device Download PDF

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Publication number
JP6789066B2
JP6789066B2 JP2016212416A JP2016212416A JP6789066B2 JP 6789066 B2 JP6789066 B2 JP 6789066B2 JP 2016212416 A JP2016212416 A JP 2016212416A JP 2016212416 A JP2016212416 A JP 2016212416A JP 6789066 B2 JP6789066 B2 JP 6789066B2
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solenoid valve
port
inlet port
circulation
outlet port
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JP2018071663A (en
Inventor
時夫 高橋
時夫 高橋
山本　隆治
隆治 山本
田中　秀夫
秀夫 田中
英夫 柄崎
英夫 柄崎
一司 鈴木
一司 鈴木
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Suntory Holdings Ltd
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Suntory Holdings Ltd
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Priority to JP2016212416A priority Critical patent/JP6789066B2/en
Priority to CN201780061855.7A priority patent/CN109790008B/en
Priority to KR1020197006641A priority patent/KR102217952B1/en
Priority to PCT/JP2017/039100 priority patent/WO2018079770A1/en
Priority to TW106137580A priority patent/TWI747987B/en
Publication of JP2018071663A publication Critical patent/JP2018071663A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/07—Cleaning beverage-dispensing apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D2001/0093—Valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Magnetically Actuated Valves (AREA)

Description

本発明は、閉鎖状態でシール部を殺菌可能な電磁弁、及びこの電磁弁を備えたウォータサーバ等の飲料供給装置に関する。 The present invention relates to a solenoid valve capable of sterilizing a sealed portion in a closed state, and a beverage supply device such as a water server provided with the solenoid valve.

従来、飲料供給装置であるウォータサーバは、配管系統中に飲料水を貯留するタンクを有し、前記配管系統を殺菌処理する手段として、前記タンクの飲料水を殺菌可能な温度に加熱するための加熱手段と、前記タンク内の高温水を前記配管系統に向けて供給させるポンプと、前記ポンプによって前記配管系統に送られた前記高温水を再び前記タンクに戻すための循環管路とを備えるものが提案されている。 Conventionally, a water server, which is a beverage supply device, has a tank for storing drinking water in a piping system, and as a means for sterilizing the piping system, for heating the drinking water in the tank to a temperature at which it can be sterilized. A heating means, a pump for supplying the hot water in the tank to the piping system, and a circulation pipeline for returning the high temperature water sent to the piping system by the pump to the tank again. Has been proposed.

このようなウォータサーバは、上記ポンプや、自然循環（対流）によって高温水を配管系統に供給させる形態の殺菌処理を定期的に実施させることで、配管系統を微生物の繁殖していない状態に維持するものである。 Such a water server maintains the piping system in a state in which microorganisms do not propagate by periodically performing a sterilization process in which high-temperature water is supplied to the piping system by the above pump or natural circulation (convection). Is what you do.

上記ウォータサーバの一例を図７を用いて説明する。ウォータサーバ１００は、飲料水容器１０２と、飲料水容器１０２から落下した飲料水を受け入れる冷水タンク１０３と、冷水タンク１０３から飲料水を受け入れる温水タンク１０５と、冷水タンク１０３内の冷水を飲料容器等に注水する冷水注水部１０７と、温水タンク１０５内の温水を飲料容器等に注水する温水注水部１２０とを備える。なお、温水タンク１０５には図示しないヒータが設けられ、冷水タンク１０３には図示しない冷却機が設けられている。ウォータサーバ１００の冷水注水部１０７には、次の図８に示す電磁弁１１０が設けられる。 An example of the water server will be described with reference to FIG. The water server 100 includes a drinking water container 102, a cold water tank 103 that receives drinking water that has fallen from the drinking water container 102, a hot water tank 105 that receives drinking water from the cold water tank 103, and cold water in the cold water tank 103. A cold water injection unit 107 for injecting water into the beverage container and a hot water injection unit 120 for injecting hot water in the hot water tank 105 into a drinking container or the like are provided. The hot water tank 105 is provided with a heater (not shown), and the cold water tank 103 is provided with a cooler (not shown). The cold water injection unit 107 of the water server 100 is provided with the solenoid valve 110 shown in FIG. 8 below.

図８に示すように、電磁弁１１０はボディ部１１１を備え、このボディ部１１１は、飲料水が流入する入口ポート１１１ａと、入口ポート１１１ａに接続される弁箱１１１ｄと、弁箱１１１ｄに接続される出口ポート１１１ｂとを備える。 As shown in FIG. 8, the solenoid valve 110 includes a body portion 111, and the body portion 111 is connected to an inlet port 111a into which drinking water flows, a valve box 111d connected to the inlet port 111a, and a valve box 111d. The outlet port 111b is provided.

電磁弁１１０は、弁箱１１１ｄ内に配置され入口ポート１１１ａと出口ポート１１１ｂとの間の管路を開閉するダイヤフラム（弁体）１１９と、ダイヤフラム１１９に接続される可動鉄心部１１３と、可動鉄心部１１３を磁力で移動するためのコイル部１１５と、可動鉄心部１１３及びダイヤフラム１１９を弁座１１１ｅに向けて付勢するスプリング１１７と、出口ポート１１１ｂに接続される注水口部１１８とを備える。 The solenoid valve 110 includes a diaphragm (valve body) 119 that is arranged in the valve box 111d and opens and closes a pipeline between the inlet port 111a and the outlet port 111b, a movable iron core portion 113 connected to the diaphragm 119, and a movable iron core. A coil portion 115 for magnetically moving the portion 113, a spring 117 for urging the movable iron core portion 113 and the diaphragm 119 toward the valve seat 111e, and a water injection port portion 118 connected to the outlet port 111b are provided.

図８に示すように電磁弁１１０が閉鎖すると、ダイヤフラム１１９のシール面１１９ａが弁座１１１ｅに着座して、弁座１１１ｅの前後の流れを遮断する。この状態で、殺菌用の熱水が電磁弁１１０の循環ポート１１１ｃから入口ポート１１１ａに流れる。しかし、このような電磁弁１１０の構造では、循環水洗浄時に熱水がダイヤフラム１１９のシール面１１９ａの近傍まで流入しないため、電磁弁の殺菌に必要な温度まで上昇するのに時間がかかっていた。さらに、熱水が直接接触しないダイヤフラム１１９の外周部１１９ｂの下方には空間が形成されており、特にこの空間における殺菌に必要な温度まで上昇するのに時間がかかっていた。 As shown in FIG. 8, when the solenoid valve 110 is closed, the sealing surface 119a of the diaphragm 119 is seated on the valve seat 111e to block the flow in front of and behind the valve seat 111e. In this state, hot water for sterilization flows from the circulation port 111c of the solenoid valve 110 to the inlet port 111a. However, in such a structure of the solenoid valve 110, since hot water does not flow into the vicinity of the sealing surface 119a of the diaphragm 119 during washing with circulating water, it takes time to rise to the temperature required for sterilizing the solenoid valve. .. Further, a space is formed below the outer peripheral portion 119b of the diaphragm 119, which is not in direct contact with hot water, and it takes time to rise to a temperature required for sterilization in this space.

国際公開第２０１２／１６５７７５号International Publication No. 2012/165775 特開２０１３−１８０８０３号JP 2013-180803

図８に示したように、熱水洗浄時の流路が電磁弁主要部（ダイヤフラム１１９のシール面１１９ａ、外周部１１９ｂ）を通過しないため、電磁弁の殺菌に時間を要するため、エネルギー効率が悪くなっている。さらに、熱水が直接接触しないダイヤフラムの外周部には空間を有しており、特にこの空間における殺菌のためのエネルギー効率が悪かった。 As shown in FIG. 8, since the flow path during hot water cleaning does not pass through the main part of the solenoid valve (sealing surface 119a of diaphragm 119, outer peripheral part 119b), it takes time to sterilize the solenoid valve, resulting in energy efficiency. It's getting worse. Further, there is a space around the diaphragm that the hot water does not come into direct contact with, and the energy efficiency for sterilization in this space is particularly poor.

本発明は、電磁弁の内部が十分に殺菌可能で、かつ、殺菌効率の良い電磁弁及び飲料供給装置を提供することを目的とする。 An object of the present invention is to provide a solenoid valve and a beverage supply device in which the inside of the solenoid valve can be sufficiently sterilized and the sterilization efficiency is high.

上記課題を解決するために、本発明は、次の通り構成される。
（態様１）弁箱と、前記弁箱に飲料を流入する入口ポートと、前記弁箱から飲料を流出する出口ポートと、前記入口ポート及び前記出口ポートの間で前記弁箱に収容される可動心部と、前記可動心部の一端側に設けられ前記出口ポートを閉鎖するシール部と、前記可動心部の他端側に設けられ前記出口ポートを閉鎖するように前記シール部を付勢する付勢部材とを備える、電磁弁であって、前記電磁弁は、前記入口ポートから前記出口ポートまでの間で飲料を流すポート間流路と、前記出口ポート側で前記ポート間流路に接続される循環ポートとを備え、前記シール部が前記出口ポートを閉鎖した状態で、前記入口ポート及び前記循環ポートの間で、前記ポート間流路を介して殺菌媒体が流通する、電磁弁。（態様２）態様１に記載の電磁弁において、前記ポート間流路は、前記弁箱の内面または前記可動心部の外面に形成された１又は複数の溝部であるか、前記ボディ部の内面及び前記可動心部の外面の間に形成された空間である、電磁弁。（態様３）態様１または２に記載の電磁弁において、前記循環ポートは、前記出口ポートに隣接する前記弁箱の側壁に設けられる、電磁弁。（態様４）態様１〜３のいずれか一項に記載の電磁弁において、前記循環ポートは、前記電磁弁の長手方向に対して所定の角度をなして配置される、電磁弁。 In order to solve the above problems, the present invention is configured as follows.
(Aspect 1) A movable valve box, an inlet port for flowing a beverage into the valve box, an outlet port for discharging a beverage from the valve box, and a movable valve box housed between the inlet port and the outlet port. The core portion, the seal portion provided on one end side of the movable core portion to close the outlet port, and the seal portion provided on the other end side of the movable core portion to close the outlet port are urged. A solenoid valve including an urging member, the solenoid valve is connected to a flow path between ports for flowing a beverage between the inlet port and the outlet port and a flow path between the ports on the outlet port side. A solenoid valve in which a sterilizing medium flows between the inlet port and the circulation port via an inter-port flow path in a state where the seal portion closes the outlet port. (Aspect 2) In the solenoid valve according to the first aspect, the interport flow path is one or a plurality of grooves formed on the inner surface of the valve box or the outer surface of the movable center portion, or the inner surface of the body portion. A solenoid valve, which is a space formed between the outer surfaces of the movable center portion and the movable center portion. (Aspect 3) In the solenoid valve according to the first or second aspect, the circulation port is provided on the side wall of the valve box adjacent to the outlet port. (Aspect 4) In the solenoid valve according to any one of aspects 1 to 3, the circulation port is arranged at a predetermined angle with respect to the longitudinal direction of the solenoid valve.

（態様５）態様１〜４のいずれか一項に記載の電磁弁において、前記弁箱には、前記可動心部を進退自在に収容する大径管部を備え、前記大径管部の直径は、前記入口ポート及び／又は前記出口ポートの直径より大きい、電磁弁。（態様６）態様１〜５のいずれか一項に記載の電磁弁において、前記可動心部が可動鉄心部であり、前記電磁弁は前記可動鉄心部を磁力で移動するためのコイル部を備える、電磁弁。（態様７）態様１〜６のいずれか一項に記載の電磁弁において、前記付勢部材はスプリングであり、前記電磁弁は前記スプリングを収容する収容部を備える、電磁弁。（態様８）態様７に記載の電磁弁において、前記収容部は、前記可動心部の前記他端側に設けられた凹状収容部であり、前記入口ポート及び前記凹状収容部の間に前記スプリングが収容される、電磁弁。（態様９）態様８に記載の電磁弁において、前記凹部状収容部には１つまたは複数のスリットが設けられ、前記スリットを介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。（態様１０）態様７に記載の電磁弁において、前記電磁弁は、前記入口ポートから前記弁箱内に延長する延長管部を備え、前記収容部は、前記延長管部と前記弁箱との間に形成される環状収容部である、電磁弁。（態様１１）態様１０に記載の電磁弁において、前記延長管部には１つまたは複数のスリットが設けられ、前記スリットを介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。 (Aspect 5) In the solenoid valve according to any one of aspects 1 to 4, the valve box includes a large-diameter tube portion that accommodates the movable center portion so as to be able to move forward and backward, and the diameter of the large-diameter tube portion. Is a solenoid valve larger than the diameter of the inlet port and / or the outlet port. (Aspect 6) In the solenoid valve according to any one of aspects 1 to 5, the movable core portion is a movable iron core portion, and the solenoid valve includes a coil portion for magnetically moving the movable iron core portion. ,solenoid valve. (Aspect 7) In the solenoid valve according to any one of aspects 1 to 6, the urging member is a spring, and the solenoid valve includes an accommodating portion for accommodating the spring. (Aspect 8) In the solenoid valve according to the seventh aspect, the accommodating portion is a concave accommodating portion provided on the other end side of the movable center portion, and the spring is provided between the inlet port and the concave accommodating portion. Is housed in a solenoid valve. (Aspect 9) In the solenoid valve according to the eighth aspect, the recessed accommodating portion is provided with one or a plurality of slits, and the interport flow path and the inlet port are communicated with each other through the slits. valve. (Aspect 10) In the solenoid valve according to the seventh aspect, the solenoid valve includes an extension pipe portion extending from the inlet port into the valve box, and the accommodating portion comprises the extension pipe portion and the valve box. A solenoid valve, which is an annular accommodating portion formed between them. (Aspect 11) In the solenoid valve according to the aspect 10, one or a plurality of slits are provided in the extension pipe portion, and the interport flow path and the inlet port are communicated with each other through the slits. ..

（態様１２）態様１０又は１１に記載の電磁弁において、前記延長管部はその末端に開口が設けられ、前記開口を介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。（態様１３）態様１〜１２のいずれか一項に記載の電磁弁において、前記循環ポートは前記弁箱の下部に設けられる、電磁弁。（態様１４）態様１〜１３のいずれか一項に記載の電磁弁において、前記殺菌媒体は、熱水である、電磁弁。（態様１５）態様１〜１４のいずれか一項に記載の電磁弁を備える、飲料供給装置。（態様１６）態様１５に記載の飲料供給装置において、前記循環ポート又は前記入口ポートに接続される管路に加熱部材を備える、飲料供給装置。（態様１７）態様１６に記載の飲料供給装置において、前記シール部が前記出口ポートを閉鎖した状態で、前記加熱部材の加熱により生成した殺菌媒体が、前記循環ポート又は前記入口ポートを介して、前記電磁弁内に供給される、飲料供給装置。（態様１８）態様１６又は１７に記載の飲料供給装置において、前記殺菌媒体が前記加熱部材に加熱されて生じた対流により、前記循環ポート又は前記入口ポートを介して、前記電磁弁内に供給される、飲料供給装置。（態様１９）態様１５〜１８のいずれか一項に記載の飲料供給装置において、前記電磁弁に殺菌媒体を循環させる循環管路を備える、飲料供給装置。（態様２０）態様１５〜１９のいずれか一項に記載の飲料供給装置であるウォータサーバ。（態様２１）態様２０に記載のウォータサーバは、冷水供給部側に前記電磁弁を備える、ウォータサーバ。 (Aspect 12) In the solenoid valve according to the aspect 10 or 11, the extension pipe portion is provided with an opening at the end thereof, and the interport flow path and the inlet port are communicated through the opening. (Aspect 13) In the solenoid valve according to any one of aspects 1 to 12, the circulation port is provided at the lower part of the valve box. (Aspect 14) In the solenoid valve according to any one of aspects 1 to 13, the sterilization medium is hot water. (Aspect 15) A beverage supply device including the solenoid valve according to any one of aspects 1 to 14. (Aspect 16) In the beverage supply device according to aspect 15, a beverage supply device including a heating member in a pipeline connected to the circulation port or the inlet port. (Aspect 17) In the beverage supply device according to the 16th aspect, the sterilization medium generated by heating the heating member is passed through the circulation port or the inlet port in a state where the seal portion closes the outlet port. A beverage supply device supplied into the solenoid valve. (Aspect 18) In the beverage supply device according to the aspect 16 or 17, the sterilizing medium is supplied into the solenoid valve via the circulation port or the inlet port by convection generated by heating the heating member. Beverage supply device. (Aspect 19) The beverage supply device according to any one of aspects 15 to 18, wherein the solenoid valve is provided with a circulation pipe for circulating a sterilizing medium. (Aspect 20) A water server which is a beverage supply device according to any one of aspects 15 to 19. (Aspect 21) The water server according to aspect 20 is a water server provided with the solenoid valve on the cold water supply unit side.

本発明は、電磁弁の閉鎖状態で電磁弁内部を確実に殺菌できる。さらに、本発明は、電磁弁の閉鎖状態で、シール部周囲、溝部、及び付勢部材も確実に殺菌できる。 According to the present invention, the inside of the solenoid valve can be reliably sterilized in the closed state of the solenoid valve. Furthermore, the present invention can reliably sterilize the periphery of the seal portion, the groove portion, and the urging member in the closed state of the solenoid valve.

本発明の第１の実施形態に係る電磁弁の閉鎖状態の断面図である。It is sectional drawing of the closed state of the solenoid valve which concerns on 1st Embodiment of this invention. 図１の電磁弁の開放状態の断面図である。It is sectional drawing in the open state of the solenoid valve of FIG. 本発明の第２の実施形態に係る電磁弁の閉鎖状態の断面図である。It is sectional drawing of the closed state of the solenoid valve which concerns on 2nd Embodiment of this invention. 図３の電磁弁の開放状態の断面図である。It is sectional drawing of the open state of the solenoid valve of FIG. 第１の実施形態の電磁弁を有する第１の循環管路を示す構造図である。It is a structural drawing which shows the 1st circulation line which has the solenoid valve of 1st Embodiment. 第１の実施形態の電磁弁を有する第２の循環管路を示す構造図である。It is a structural drawing which shows the 2nd circulation line which has the solenoid valve of 1st Embodiment. 従来のウォータサーバの給水構造を示す模式図である。It is a schematic diagram which shows the water supply structure of the conventional water server. 従来のウォータサーバに用いる電磁弁の断面図である。It is sectional drawing of the solenoid valve used in the conventional water server.

本発明の電磁弁及び飲料供給装置を、ウォータサーバ用電磁弁及びウォータサーバに適用した各実施形態を以下説明する。なお、本発明の各実施形態のウォータサーバの給水構造は、図７のウォータサーバと同様であるが、図７のウォータサーバの電磁弁に換えて、後述する各実施形態の電磁弁を備える。本発明の各実施形態の電磁弁及びウォータサーバは、流路の殺菌時に電磁弁のシール部の周囲を殺菌できる電磁弁を有する。 Each embodiment in which the solenoid valve and the beverage supply device of the present invention are applied to the solenoid valve for the water server and the water server will be described below. The water supply structure of the water server of each embodiment of the present invention is the same as that of the water server of FIG. 7, but the solenoid valve of each embodiment described later is provided instead of the solenoid valve of the water server of FIG. The solenoid valve and water server of each embodiment of the present invention have a solenoid valve capable of sterilizing the periphery of the seal portion of the solenoid valve when the flow path is sterilized.

（第１の実施形態）
本発明の第１の実施形態に係るウォータサーバ用電磁弁を、図１及び２を用いて説明する。電磁弁１０は、後述のシール部１９等の弁体を収容すると共にシール部１９により開閉される流路を構成する弁箱１１を備え、弁箱１１は、飲料水が流入する入口ポート１１ａと、飲料水が流出する出口ポート１１ｂと、殺菌媒体（熱水、温水または殺菌剤）が循環する循環ポート１１ｃと、各ポートに連通する大径管部１１ｄとをそれぞれ備える。弁箱１１において、入口ポート１１ａ、大径管部１１ｄ、及び出口ポート１１ｂは直線状に配置され、循環ポート１１ｃは、出口ポート１１ｂ側で、電磁弁１０の長手方向に対して所定の角度をなして大径管部１１ｄに接続される。所定の角度は、好ましくは、４５度から１３５度の範囲、より好ましくは８０度から１００度の範囲、さらに好ましくはほぼ直角とすることができる。大径管部１１ｄの内径は、各ポートの内径より大きく形成される。図１及び２に示すように、循環ポート１１ｃは、出口ポート１１ｂに隣接する弁箱１１の側壁に設けられる。 (First Embodiment)
The solenoid valve for a water server according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. The electromagnetic valve 10 includes a valve box 11 that accommodates a valve body such as a seal portion 19 described later and constitutes a flow path that is opened and closed by the seal portion 19, and the valve box 11 has an inlet port 11a through which drinking water flows. , An outlet port 11b through which drinking water flows out, a circulation port 11c through which a sterilizing medium (hot water, hot water or a bactericide) circulates, and a large-diameter pipe portion 11d communicating with each port. In the valve box 11, the inlet port 11a, the large diameter pipe portion 11d, and the outlet port 11b are arranged linearly, and the circulation port 11c is on the outlet port 11b side at a predetermined angle with respect to the longitudinal direction of the solenoid valve 10. It is connected to the large diameter pipe portion 11d. The predetermined angle can be preferably in the range of 45 to 135 degrees, more preferably in the range of 80 to 100 degrees, and even more preferably at a right angle. The inner diameter of the large diameter pipe portion 11d is formed to be larger than the inner diameter of each port. As shown in FIGS. 1 and 2, the circulation port 11c is provided on the side wall of the valve box 11 adjacent to the outlet port 11b.

また、電磁弁１０は、大径管部１１ｄの内面に当接しつつ、その長手方向に沿って進退可能な可動鉄心部１３と、大径管部１１ｄ内で可動鉄心部１３の一端（左端）に設けられ、出口ポート１１ｂを閉鎖可能なシール部１９と、可動鉄心部１３を出口ポート１１ｂに向けて付勢するリターンスプリング（付勢部材）１７と、大径管部１１ｄの外側に配置され、可動心部１３を磁力で移動するためのコイル部１５とを備える。なお、スプリング１７は、可動心部１３の他端（右端）と入口ポート１１ａとの間に設けられる。 Further, the solenoid valve 10 has a movable iron core portion 13 that is in contact with the inner surface of the large diameter pipe portion 11d and can move forward and backward along the longitudinal direction thereof, and one end (left end) of the movable iron core portion 13 in the large diameter pipe portion 11d. A seal portion 19 that can close the outlet port 11b, a return spring (biasing member) 17 that urges the movable iron core portion 13 toward the outlet port 11b, and a large-diameter pipe portion 11d are arranged outside the large-diameter pipe portion 11d. A coil portion 15 for moving the movable core portion 13 by magnetic force is provided. The spring 17 is provided between the other end (right end) of the movable core portion 13 and the inlet port 11a.

シール部１９はゴム等の可撓性部材から円盤状に形成される。シール部１９の直径は、可動鉄心部１３の直径よりも小さく、出口ポート１１ｂの開口直径よりも大きい。可動鉄心部１３は、細長い円柱状であり、その外周曲面上に長手方向に沿って水が流通可能な１つまたは複数の溝部１３ａが形成される。溝部１３ａによって、入口ポート１１ａ及び出口ポート１１ｂの間を接続するポート間流路が構成される。また、溝部は、可動鉄心部１３の外面でなく、大径管部１１ｄの内面に、その長手方向に沿って１つまたは複数形成してもよい。さらに、溝部を形成せずに、弁箱１１の内面と可動鉄心部１３の外面との間に、入口ポートから出口ポートまで空間を形成することにより、ポート間流路を構成してもよい。可動鉄心部１３の他端（図１の右端）には、スプリング１７を収容する凹状の収容部１３ｂが形成される。可動鉄心部１３の、溝部１３ａ及び収容部１３ｂが重なる部分には、水を流通可能とする複数のスリット１３ｃが形成される。 The seal portion 19 is formed in a disk shape from a flexible member such as rubber. The diameter of the seal portion 19 is smaller than the diameter of the movable iron core portion 13 and larger than the opening diameter of the outlet port 11b. The movable iron core portion 13 has an elongated columnar shape, and one or a plurality of groove portions 13a through which water can flow along the longitudinal direction are formed on the outer peripheral curved surface thereof. The groove portion 13a constitutes an interport flow path connecting between the inlet port 11a and the outlet port 11b. Further, one or a plurality of groove portions may be formed along the longitudinal direction thereof on the inner surface of the large-diameter pipe portion 11d instead of the outer surface of the movable iron core portion 13. Further, the interport flow path may be formed by forming a space from the inlet port to the outlet port between the inner surface of the valve box 11 and the outer surface of the movable iron core portion 13 without forming the groove portion. At the other end of the movable iron core portion 13 (right end in FIG. 1), a concave accommodating portion 13b for accommodating the spring 17 is formed. A plurality of slits 13c that allow water to flow are formed in a portion of the movable iron core portion 13 where the groove portion 13a and the accommodating portion 13b overlap.

電磁弁１０の閉鎖状態における殺菌媒体の流れを説明する。図１に示すように、電磁弁１０は、可動鉄心部１３及びシール部１９が前進してシール部１９が出口ポート１１ｂを閉鎖した閉鎖状態にある。この閉鎖状態で、順流や逆流で殺菌媒体（熱水、温水または殺菌剤）を流すことができる。具体的には、順流として、殺菌媒体が電磁弁１０の入口ポート１１ａに流入すると、殺菌媒体は、収容部１３ｂ、複数のスリット１３ｃ、複数の溝部１３ａ、シール部１９の周囲、循環ポート１１ｃの順に流れ、電磁弁１０の外部に流出して、後述する循環管路を通って循環する。また、逆流として、殺菌媒体が電磁弁１０の循環ポート１１ｃに流入すると、殺菌媒体は、シール部１９の周囲、複数の溝部１３ａ、複数のスリット１３ｃ、収容部１３ｂ、入口ポート１１ａの順に流れ、電磁弁１０の外部に流出して、後述する循環管路を通って循環する。第１実施形態においては、殺菌媒体を、順流のみで流すか、逆流のみで流すか、または、順流及び逆流を交互に切換えて流すことができる。 The flow of the sterilizing medium in the closed state of the solenoid valve 10 will be described. As shown in FIG. 1, the solenoid valve 10 is in a closed state in which the movable iron core portion 13 and the seal portion 19 are advanced and the seal portion 19 closes the outlet port 11b. In this closed state, the disinfectant medium (hot water, hot water or disinfectant) can be flowed in a forward or reverse flow. Specifically, when the sterilizing medium flows into the inlet port 11a of the solenoid valve 10 as a forward flow, the sterilizing medium flows into the accommodating portion 13b, the plurality of slits 13c, the plurality of groove portions 13a, the periphery of the sealing portion 19, and the circulation port 11c. It flows in order, flows out to the outside of the solenoid valve 10, and circulates through a circulation pipeline described later. Further, when the sterilizing medium flows into the circulation port 11c of the solenoid valve 10 as a backflow, the sterilizing medium flows around the seal portion 19, a plurality of groove portions 13a, a plurality of slits 13c, a housing portion 13b, and an inlet port 11a in this order. It flows out to the outside of the solenoid valve 10 and circulates through a circulation pipeline described later. In the first embodiment, the sterilization medium can be flowed only in the forward flow, only in the reverse flow, or alternately switched between the forward flow and the back flow.

次に、電磁弁１０の開放状態における飲料水の流れを説明する。図２に示すように、電磁弁１０は、可動鉄心部１３及びシール部１９が後退してシール部１９が出口ポート１１ｂを開放した開放状態にある。この開放状態で、図示しない冷水タンクから飲料水（冷水）が電磁弁１０の入口ポート１１ａに流入すると、飲料水は、収容部１３ｂ、複数のスリット１３ｃ、複数の溝部１３ａ、シール部１９の周囲を順に通って、出口ポート１１ｂから電磁弁１０の外部（冷水注水部）に流出する。なお、循環ポート１１ｃに接続される管路は図示しない弁により閉鎖等されるため、飲料水は循環ポート１１ｃ側には流出しない。 Next, the flow of drinking water in the open state of the solenoid valve 10 will be described. As shown in FIG. 2, the solenoid valve 10 is in an open state in which the movable iron core portion 13 and the seal portion 19 are retracted and the seal portion 19 opens the outlet port 11b. In this open state, when drinking water (cold water) flows into the inlet port 11a of the solenoid valve 10 from a cold water tank (not shown), the drinking water flows around the accommodating portion 13b, the plurality of slits 13c, the plurality of groove portions 13a, and the sealing portion 19. Outflow from the outlet port 11b to the outside of the solenoid valve 10 (cold water injection section). Since the pipeline connected to the circulation port 11c is closed by a valve (not shown), drinking water does not flow out to the circulation port 11c side.

（第２の実施形態）
第２の実施形態に係る電磁弁２０を図３及び４を用いて説明する。電磁弁２０は、後述のシール部２９等の弁体を収容すると共にシール部２９により開閉される流路を構成する弁箱（ボディ部）２１を備え、弁箱２１は、飲料水が流入する入口ポート２１ａと、飲料水が流出する出口ポート２１ｂと、殺菌媒体（熱水、温水または殺菌剤）が循環する循環ポート２１ｃと、各ポートに連通する大径管部２１ｄとをそれぞれ備える。弁箱２１において、入口ポート２１ａ、大径管部２１ｄ、及び出口ポート２１ｂは直線状に配置され、循環ポート２１ｃは、出口ポート２１ｂ側で、電磁弁１０の長手方向に対して前記所定の角度をなして大径管部２１ｄに接続される。さらに、図３及び４に示すように、循環ポート２１ｃは、出口ポート２１ｂに隣接する弁箱２１の側壁に設けられる。 (Second Embodiment)
The solenoid valve 20 according to the second embodiment will be described with reference to FIGS. 3 and 4. The electromagnetic valve 20 includes a valve box (body portion) 21 that accommodates a valve body such as a seal portion 29, which will be described later, and constitutes a flow path that is opened and closed by the seal portion 29, and the valve box 21 is provided with drinking water. An inlet port 21a, an outlet port 21b through which drinking water flows out, a circulation port 21c through which a sterilizing medium (hot water, hot water or a bactericide) circulates, and a large-diameter pipe portion 21d communicating with each port are provided. In the valve box 21, the inlet port 21a, the large diameter pipe portion 21d, and the outlet port 21b are arranged linearly, and the circulation port 21c is on the outlet port 21b side at the predetermined angle with respect to the longitudinal direction of the solenoid valve 10. It is connected to the large diameter pipe portion 21d. Further, as shown in FIGS. 3 and 4, the circulation port 21c is provided on the side wall of the valve box 21 adjacent to the outlet port 21b.

また、電磁弁２０は、大径管部２１ｄの内面に当接しつつ、その長手方向に沿って進退可能な可動鉄心部２３と、大径管部２１ｄ内で可動鉄心部２３の一端（左端）に設けられ、出口ポート２１ｂを閉鎖可能なシール部２９と、可動鉄心部２３を出口ポート２１ｂに向けて付勢するリターンスプリング（付勢部材）２７と、大径管部２１ｄの外側に配置され、可動心部２３を磁力で移動するためのコイル部２５とを備える。なお、スプリング２７は、大径管部２１ｄ内で可動心部２３の他端（右端）及び入口ポート２１ａの間に設けられる。 Further, the solenoid valve 20 has a movable iron core portion 23 that can move forward and backward along the longitudinal direction while abutting on the inner surface of the large diameter pipe portion 21d, and one end (left end) of the movable iron core portion 23 in the large diameter pipe portion 21d. A seal portion 29 that can close the outlet port 21b, a return spring (biasing member) 27 that biases the movable iron core portion 23 toward the outlet port 21b, and a large-diameter pipe portion 21d are arranged outside the large-diameter pipe portion 21d. A coil portion 25 for moving the movable core portion 23 by magnetic force is provided. The spring 27 is provided between the other end (right end) of the movable core portion 23 and the inlet port 21a in the large diameter pipe portion 21d.

シール部２９はゴム等の可撓性部材から円盤状に形成される。シール部２９は、さらにフランジ部２９ａを有し、フランジ部２９ａの直径は、可動鉄心部２３の直径よりも小さく、出口ポート２１ｂの直径よりも大きい。可動鉄心部２３は、細長い円柱状であり、その外周曲面上に長手方向に沿って水が流通可能な１つまたは複数の溝部２３ａが形成される。溝部２３ａによって、入口ポート２１ａ及び出口ポート２１ｂの間を接続するポート間流路が構成される。なお、溝部は、可動鉄心部２３の外面でなく、大径管部２１ｄの内面に１つまたは複数形成してもよい。さらに、溝部を形成せずに、弁箱２１の内面と可動鉄心部２３の外面との間に、入口ポートから出口ポートまで空間を形成することにより、ポート間流路を構成してもよい。可動鉄心部２３の他端（図３の右端）側では、入口ポート２１ａの管路を大径管部２１ｄ内まで延長した延長管部２１ａ１が設けられる。入口ポート２１ａの延長管部２１ａ１の外面と、大径管部２１ｄの内面との間に形成された環状空間がスプリング２７を収容する収容部２１ｅを構成する。可動鉄心部２３に対向する延長管部２１ａ１の端面には、開口２１ａ２が形成される。延長管部２１ａ１の周囲には、大径管部２１ｄの長手方向に平行に１つまたは複数のスリット２１ａ３が形成される。開口２１ａ２及びスリット２１ａ３により、入口ポート２１ａと大径管部２１ｄ内部との間で水が流通可能となる。 The seal portion 29 is formed in a disk shape from a flexible member such as rubber. The seal portion 29 further has a flange portion 29a, and the diameter of the flange portion 29a is smaller than the diameter of the movable iron core portion 23 and larger than the diameter of the outlet port 21b. The movable iron core portion 23 has an elongated columnar shape, and one or a plurality of groove portions 23a through which water can flow along the longitudinal direction are formed on the outer peripheral curved surface thereof. The groove portion 23a constitutes an interport flow path connecting between the inlet port 21a and the outlet port 21b. In addition, one or a plurality of groove portions may be formed on the inner surface of the large diameter pipe portion 21d instead of the outer surface of the movable iron core portion 23. Further, the interport flow path may be formed by forming a space from the inlet port to the outlet port between the inner surface of the valve box 21 and the outer surface of the movable iron core portion 23 without forming the groove portion. On the other end (right end in FIG. 3) side of the movable iron core portion 23, an extension pipe portion 21a1 is provided in which the pipeline of the inlet port 21a is extended into the large diameter pipe portion 21d. An annular space formed between the outer surface of the extension pipe portion 21a1 of the inlet port 21a and the inner surface of the large diameter pipe portion 21d constitutes the accommodating portion 21e for accommodating the spring 27. An opening 21a2 is formed on the end surface of the extension pipe portion 21a1 facing the movable iron core portion 23. One or more slits 21a3 are formed around the extension pipe portion 21a1 in parallel with the longitudinal direction of the large diameter pipe portion 21d. The opening 21a2 and the slit 21a3 allow water to flow between the inlet port 21a and the inside of the large diameter pipe portion 21d.

電磁弁２０の閉鎖状態における殺菌媒体の流れを説明する。図３に示すように、電磁弁２０は、可動鉄心部２３及びシール部２９が前進してシール部２９が出口ポート２１ｂを閉鎖した閉鎖状態にある。この閉鎖状態で、順流や逆流で殺菌用の殺菌媒体（熱水、温水または殺菌剤）を流すことができる。具体的には、順流として、殺菌媒体が電磁弁２０の入口ポート２１ａに流入すると、殺菌媒体は、開口２１ａ２及び複数のスリット２１ａ３、収容部２１ｅ、複数の溝部２３ａ、シール部２９の周囲の順に流れ、電磁弁２０の外部に流出して、後述する循環管路を通って循環する。また、逆流として、殺菌媒体が電磁弁２０の循環ポート２１ｃに流入すると、殺菌媒体は、シール部２９の周囲、複数の溝部２３ａ、収容部２１ｅ、開口２１ａ２及び複数のスリット２１ａ３、入口ポート２１ａの順に流れ、電磁弁２０の外部に流出して、後述する循環管路を通って循環する。第２実施形態においても、殺菌媒体を、順流のみで流すか、逆流のみで流すか、または、順流及び逆流を交互に切換えて流すことができる。 The flow of the sterilizing medium in the closed state of the solenoid valve 20 will be described. As shown in FIG. 3, the solenoid valve 20 is in a closed state in which the movable iron core portion 23 and the seal portion 29 are advanced and the seal portion 29 closes the outlet port 21b. In this closed state, a sterilizing medium (hot water, hot water or a disinfectant) for sterilization can be flowed in a forward flow or a reverse flow. Specifically, when the sterilizing medium flows into the inlet port 21a of the solenoid valve 20 as a forward flow, the sterilizing medium flows in the order around the openings 21a2, the plurality of slits 21a3, the accommodating portion 21e, the plurality of groove portions 23a, and the sealing portion 29. It flows, flows out to the outside of the solenoid valve 20, and circulates through a circulation pipeline described later. Further, when the sterilizing medium flows into the circulation port 21c of the solenoid valve 20 as a backflow, the sterilizing medium flows around the seal portion 29, a plurality of groove portions 23a, an accommodating portion 21e, an opening 21a2 and a plurality of slits 21a3, and an inlet port 21a. It flows in order, flows out to the outside of the solenoid valve 20, and circulates through a circulation pipeline described later. Also in the second embodiment, the sterilization medium can be flowed only in the forward flow, only in the back flow, or can be flowed by alternately switching between the forward flow and the back flow.

次に、電磁弁２０の開放状態における飲料水の流れを説明する。図４に示すように、電磁弁２０は、可動鉄心部２３及びシール部２９が後退してシール部２９が出口ポート２１ｂを開放した開放状態にある。この開放状態で、図示しない冷水タンクから飲料水（冷水）が電磁弁２０の入口ポート２１ａに流入すると、飲料水は、延長管部２１ａ１、複数のスリット２１ａ３、収容部１２ｅ、複数の溝部２３ａ、シール部２９の周囲を順に通って、出口ポート２１ｂから電磁弁２０の外部に流出する。なお、循環ポート２１ｃに接続される循環路は図示しない弁により閉鎖等されるため、飲料水は循環ポート２１ｃ側には流出しない。 Next, the flow of drinking water in the open state of the solenoid valve 20 will be described. As shown in FIG. 4, the solenoid valve 20 is in an open state in which the movable iron core portion 23 and the seal portion 29 are retracted and the seal portion 29 opens the outlet port 21b. In this open state, when drinking water (cold water) flows into the inlet port 21a of the solenoid valve 20 from a cold water tank (not shown), the drinking water has an extension pipe portion 21a1, a plurality of slits 21a3, an accommodating portion 12e, and a plurality of groove portions 23a. It passes around the seal portion 29 in order and flows out from the outlet port 21b to the outside of the solenoid valve 20. Since the circulation path connected to the circulation port 21c is closed by a valve (not shown), drinking water does not flow out to the circulation port 21c side.

（循環管路）
次に、第１の実施形態の電磁弁１０を循環管路に接続した状態を図５及び６を用いて説明する。図５及び６において、電磁弁１０はいずれも閉鎖状態とされている。なお、図５及び６では、各循環管路に第１の実施形態の電磁弁１０を配置したが、各循環管路に第２の実施形態の電磁弁２０を同様に配置することも可能である。 (Circulation pipeline)
Next, a state in which the solenoid valve 10 of the first embodiment is connected to the circulation pipeline will be described with reference to FIGS. 5 and 6. In FIGS. 5 and 6, the solenoid valve 10 is in a closed state. In FIGS. 5 and 6, the solenoid valve 10 of the first embodiment is arranged in each circulation line, but the solenoid valve 20 of the second embodiment can be similarly arranged in each circulation line. is there.

図５（ａ）を用いて循環管路３０を説明する。循環管路３０には、循環ポート１１ｃに接続される管路の下方にヒータ（加熱部材）３１が設けられる。電磁弁１０は横型に配置されるため、入口ポート１１ａ及び出口ポート１１ｂが横方向に並び、循環ポート１１ｃが下方向を向いている。循環管路３０で殺菌を行う際は、ヒータ３１が管路内の水を加熱すると、水が加熱されて殺菌媒体（熱水）となり対流により管路を上昇して、循環ポート１１ｃ、電磁弁１０の内部、入口ポート１１ａの順に循環する。 The circulation line 30 will be described with reference to FIG. 5 (a). The circulation pipe line 30 is provided with a heater (heating member) 31 below the pipe line connected to the circulation port 11c. Since the solenoid valve 10 is arranged horizontally, the inlet port 11a and the outlet port 11b are arranged in the horizontal direction, and the circulation port 11c faces downward. When sterilizing in the circulation pipeline 30, when the heater 31 heats the water in the pipeline, the water is heated to become a sterilization medium (hot water) and rises in the pipeline by convection, and the circulation port 11c and the solenoid valve. It circulates inside 10 and in the order of inlet port 11a.

図５（ｂ）を用いて循環管路４０を説明する。循環管路４０には、循環ポート１１ｃに接続される管路の下方にヒータ４１（加熱部材）が設けられる。電磁弁１０は縦型に配置されるため、入口ポート１１ａ及び出口ポート１１ｂが縦方向に並び、循環ポート１１ｃが横方向を向いている。循環管路４０で殺菌を行う際は、ヒータ４１が管路内の水を加熱すると、水が加熱されて殺菌媒体（熱水）となり対流により管路を上昇して、循環ポート１１ｃ、電磁弁１０の内部、入口ポート１１ａの順に循環する。 The circulation line 40 will be described with reference to FIG. 5 (b). The circulation pipeline 40 is provided with a heater 41 (heating member) below the pipeline connected to the circulation port 11c. Since the solenoid valve 10 is arranged vertically, the inlet port 11a and the outlet port 11b are arranged in the vertical direction, and the circulation port 11c is oriented in the horizontal direction. When sterilizing in the circulation pipeline 40, when the heater 41 heats the water in the pipeline, the water is heated to become a sterilization medium (hot water) and rises in the pipeline by convection, and the circulation port 11c and the solenoid valve. It circulates inside 10 and in the order of inlet port 11a.

図６（ａ）を用いて循環管路５０を説明する。循環管路５０には、入口ポート１１ａに接続される管路から下方に分岐する管路にヒータ（加熱部材）５１が設けられる。電磁弁１０は横型に配置されるため、入口ポート１１ａ及び出口ポート１１ｂが横方向に並び、循環ポート１１ｃが下方向を向いている。循環管路５０で殺菌を行う際は、ヒータ５１が管路内の水を加熱すると、水が加熱されて殺菌媒体（熱水）となり対流により管路を上昇して、入口ポート１１ａ、電磁弁１０の内部、循環ポート１１ｃの順に循環する。 The circulation line 50 will be described with reference to FIG. 6A. The circulation pipeline 50 is provided with a heater (heating member) 51 in a pipeline that branches downward from the pipeline connected to the inlet port 11a. Since the solenoid valve 10 is arranged horizontally, the inlet port 11a and the outlet port 11b are arranged in the horizontal direction, and the circulation port 11c faces downward. When sterilizing in the circulation pipeline 50, when the heater 51 heats the water in the pipeline, the water is heated to become a sterilization medium (hot water) and rises in the pipeline by convection, and the inlet port 11a and the solenoid valve. It circulates inside 10 and in the order of circulation port 11c.

図６（ｂ）を用いて循環管路６０を説明する。循環管路６０には、入口ポート１１ａに接続される管路から下方に分岐する管路にヒータ（加熱部材）６１が設けられる。電磁弁１０は縦型に配置されるため、入口ポート１１ａ及び出口ポート１１ｂが縦方向に並び、循環ポート１１ｃが横方向を向いている。循環管路６０で殺菌を行う際は、ヒータ６１が管路内の水を加熱すると、水が加熱されて殺菌媒体（熱水）となり対流により管路を上昇して、入口ポート１１ａ、電磁弁１０の内部、循環ポート１１ｃの順に循環する。 The circulation line 60 will be described with reference to FIG. 6 (b). In the circulation pipeline 60, a heater (heating member) 61 is provided in a pipeline that branches downward from the pipeline connected to the inlet port 11a. Since the solenoid valve 10 is arranged vertically, the inlet port 11a and the outlet port 11b are arranged in the vertical direction, and the circulation port 11c is oriented in the horizontal direction. When sterilizing in the circulation pipeline 60, when the heater 61 heats the water in the pipeline, the water is heated to become a sterilization medium (hot water) and rises in the pipeline by convection, and the inlet port 11a and the solenoid valve. It circulates inside 10 and in the order of circulation port 11c.

本発明の第１及び第２の実施形態の電磁弁は、出口ポート及び出口ポートを閉鎖する側のシール部の表面を除く、電磁弁の内部表面の全てにおいて、殺菌媒体を循環することができるため、短い時間で効率良く電磁弁全体を殺菌温度に加熱することができ、適切な殺菌効果を得ることとともに、殺菌に必要なエネルギーを従来よりも削減することができる。
なお、本発明の第１及び第２の実施形態において、電磁弁１０または２０を備える飲料供給装置として、水を供給するウォータサーバを記載したが、本発明はウォータサーバに限定されず、例えば、清涼飲料水を供給する飲料供給装置に適用してもよい。さらに、本発明の第１及び第２の実施形態において、電磁弁１０または２０が飲料供給装置に設けられたが、これに限定されず、当該電磁弁を飲料でない任意の液体を供給する液体供給装置に設けることもできる。 The solenoid valve of the first and second embodiments of the present invention can circulate the sterilizing medium on all the inner surfaces of the solenoid valve except the surface of the outlet port and the seal portion on the side that closes the outlet port. Therefore, the entire solenoid valve can be efficiently heated to the sterilization temperature in a short time, an appropriate sterilization effect can be obtained, and the energy required for sterilization can be reduced as compared with the conventional case.
In the first and second embodiments of the present invention, a water server that supplies water is described as a beverage supply device including a solenoid valve 10 or 20, but the present invention is not limited to the water server, for example. It may be applied to a beverage supply device that supplies soft drinks. Further, in the first and second embodiments of the present invention, the solenoid valve 10 or 20 is provided in the beverage supply device, but the present invention is not limited to this, and the solenoid valve is used to supply an arbitrary liquid that is not a beverage. It can also be provided in the device.

１０ 電磁弁
１１ 弁箱
１１ａ 入口ポート
１１ｂ 出口ポート
１１ｃ 循環ポート
１１ｄ 大径管部
１３ 可動鉄心部
１３ａ 溝部（ポート間流路）
１３ｂ スリット
１５ コイル部
１７ スプリング（付勢部材）
１９ シール部（弁体）
２０ 電磁弁
２１ 弁箱
２１ａ 入口ポート
２１ｂ 出口ポート
２１ｃ 循環ポート
２１ｄ 大径管部
２１ａ１ 延長管部
２１ａ２ 開口
２１ａ３ スリット
２３ 可動鉄心部
２５ コイル部
２７ スプリング（付勢部材）
２９ シール部（弁体）
２９ａ フランジ部
３０ 循環管路
３１ ヒータ（加熱部材）
４０ 循環管路
４１ ヒータ（加熱部材）
５０ 循環管路
５１ ヒータ（加熱部材）
６０ 循環管路
６１ ヒータ（加熱部材） 10 Solenoid valve 11 Valve box 11a Inlet port 11b Outlet port 11c Circulation port 11d Large diameter pipe part 13 Movable iron core part 13a Groove part (flow path between ports)
13b Slit 15 Coil 17 Spring (biasing member)
19 Seal part (valve body)
20 Solenoid valve 21 Valve box 21a Inlet port 21b Outlet port 21c Circulation port 21d Large diameter pipe part 21a1 Extension pipe part 21a2 Opening 21a3 Slit 23 Movable iron core part 25 Coil part 27 Spring (biasing member)
29 Seal part (valve body)
29a Flange portion 30 Circulation pipeline 31 Heater (heating member)
40 Circulation line 41 Heater (heating member)
50 Circulation line 51 Heater (heating member)
60 Circulation line 61 Heater (heating member)

Claims (20)

弁箱と、前記弁箱に飲料を流入する入口ポートと、前記弁箱から飲料を流出する出口ポートと、前記入口ポート及び前記出口ポートの間で前記弁箱に収容される可動心部と、前記可動心部の一端側に設けられ前記出口ポートを閉鎖するシール部と、前記可動心部の他端側に設けられ前記出口ポートを閉鎖するように前記シール部を付勢する付勢部材とを備える、電磁弁であって、
前記電磁弁は、前記入口ポートから前記出口ポートまでの間で飲料を流すポート間流路と、前記出口ポート側で前記ポート間流路に接続される循環ポートとを備え、
前記シール部が前記出口ポートを閉鎖した状態で、前記入口ポート及び前記循環ポートの間で、前記ポート間流路を介して殺菌媒体が流通し、
前記弁箱は、前記可動心部を進退自在に収容する大径管部を備え、前記大径管部の直径は、前記入口ポート及び／又は前記出口ポートの直径より大きい、電磁弁。 A valve box, an inlet port for flowing beverages into the valve box, an outlet port for discharging beverages from the valve box, and a movable core portion housed in the valve box between the inlet port and the outlet port. A seal portion provided on one end side of the movable core portion and closing the outlet port, and an urging member provided on the other end side of the movable core portion and urging the seal portion so as to close the outlet port. It is an electromagnetic valve equipped with
The solenoid valve includes a port-to-port flow path for flowing a beverage between the inlet port and the outlet port, and a circulation port connected to the port-to-port flow path on the outlet port side.
With the seal portion closing the outlet port, the sterilization medium flows between the inlet port and the circulation port via the interport flow path .
The valve box includes a large-diameter pipe portion that accommodates the movable center portion so as to be able to move forward and backward, and the diameter of the large-diameter pipe portion is larger than the diameter of the inlet port and / or the outlet port . 請求項１に記載の電磁弁において、前記ポート間流路は、前記弁箱の内面または前記可動心部の外面に形成された１又は複数の溝部であるか、前記ボディ部の内面及び前記可動心部の外面の間に形成された空間である、電磁弁。 In the solenoid valve according to claim 1, the interport flow path is one or a plurality of grooves formed on the inner surface of the valve box or the outer surface of the movable center portion, or the inner surface of the body portion and the movable portion. A solenoid valve, which is a space formed between the outer surfaces of the heart. 請求項１または２に記載の電磁弁において、前記循環ポートは、前記出口ポートに隣接する前記弁箱の側壁に設けられる、電磁弁。 The solenoid valve according to claim 1 or 2, wherein the circulation port is provided on a side wall of the valve box adjacent to the outlet port. 請求項１〜３のいずれか一項に記載の電磁弁において、前記循環ポートは、前記電磁弁の長手方向に対して所定の角度をなして配置される、電磁弁。 The solenoid valve according to any one of claims 1 to 3, wherein the circulation port is arranged at a predetermined angle with respect to the longitudinal direction of the solenoid valve. 請求項１〜４のいずれか一項に記載の電磁弁において、前記可動心部が可動鉄心部であり、前記電磁弁は前記可動鉄心部を磁力で移動するためのコイル部を備える、電磁弁。 In the solenoid valve according to any one of claims 1 to 4, the movable core portion is a movable iron core portion, and the solenoid valve includes a coil portion for magnetically moving the movable iron core portion. .. 請求項１〜５のいずれか一項に記載の電磁弁において、前記付勢部材はスプリングであり、前記電磁弁は前記スプリングを収容する収容部を備える、電磁弁。 The solenoid valve according to any one of claims 1 to 5 , wherein the urging member is a spring, and the solenoid valve includes a housing portion for accommodating the spring. 請求項６に記載の電磁弁において、前記収容部は、前記可動心部の前記他端側に設けられた凹状収容部であり、前記入口ポート及び前記凹状収容部の間に前記スプリングが収容される、電磁弁。 In the solenoid valve according to claim 6 , the accommodating portion is a concave accommodating portion provided on the other end side of the movable center portion, and the spring is accommodated between the inlet port and the concave accommodating portion. Solenoid valve. 請求項７に記載の電磁弁において、前記凹部状収容部には１つまたは複数のスリットが設けられ、前記スリットを介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。 The solenoid valve according to claim 7 , wherein one or a plurality of slits are provided in the recessed accommodating portion, and the interport flow path and the inlet port are communicated with each other through the slits. 請求項６に記載の電磁弁において、前記電磁弁は、前記入口ポートから前記弁箱内に延長する延長管部を備え、前記収容部は、前記延長管部と前記弁箱との間に形成される環状収容部である、電磁弁。 In the solenoid valve according to claim 6 , the solenoid valve includes an extension tube portion extending from the inlet port into the valve box, and the accommodating portion is formed between the extension tube portion and the valve box. Solenoid valve, which is an annular accommodating part. 請求項９に記載の電磁弁において、前記延長管部には１つまたは複数のスリットが設けられ、前記スリットを介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。 The solenoid valve according to claim 9 , wherein the extension pipe portion is provided with one or more slits, and the interport flow path and the inlet port are communicated with each other through the slits. 請求項９又は１０に記載の電磁弁において、前記延長管部はその末端に開口が設けられ、前記開口を介して前記ポート間流路及び前記入口ポートが連通される、電磁弁。 The solenoid valve according to claim 9 or 10 , wherein the extension pipe portion is provided with an opening at the end thereof, and the interport flow path and the inlet port are communicated through the opening. 請求項１〜１１のいずれか一項に記載の電磁弁において、前記循環ポートは前記弁箱の下部に設けられる、電磁弁。 The solenoid valve according to any one of claims 1 to 11 , wherein the circulation port is provided in the lower part of the valve box. 請求項１〜１２のいずれか一項に記載の電磁弁において、前記殺菌媒体は、熱水である、電磁弁。 The solenoid valve according to any one of claims 1 to 12 , wherein the sterilizing medium is hot water. 請求項１〜１３のいずれか一項に記載の電磁弁を備える、飲料供給装置。 A beverage supply device comprising the solenoid valve according to any one of claims 1 to 13 . 請求項１４に記載の飲料供給装置において、前記循環ポート又は前記入口ポートに接続される管路に加熱部材を備える、飲料供給装置。 The beverage supply device according to claim 14 , wherein a heating member is provided in a pipeline connected to the circulation port or the inlet port. 請求項１５に記載の飲料供給装置において、前記シール部が前記出口ポートを閉鎖した状態で、前記加熱部材の加熱により生成した殺菌媒体が、前記循環ポート又は前記入口ポートを介して、前記電磁弁内に供給される、飲料供給装置。 In the beverage supply device according to claim 15 , the sterilization medium generated by heating the heating member in a state where the seal portion closes the outlet port is passed through the circulation port or the inlet port to the solenoid valve. Beverage supply device supplied in. 請求項１５又は１６に記載の飲料供給装置において、前記殺菌媒体が前記加熱部材に加熱されて生じた対流により、前記循環ポート又は前記入口ポートを介して、前記電磁弁内に供給される、飲料供給装置。 In the beverage supply device according to claim 15 or 16 , the beverage is supplied into the solenoid valve via the circulation port or the inlet port by convection generated by heating the sterilizing medium to the heating member. Feeding device. 請求項１４〜１７のいずれか一項に記載の飲料供給装置において、前記電磁弁に殺菌媒体を循環させる循環管路を備える、飲料供給装置。 The beverage supply device according to any one of claims 14 to 17 , wherein the solenoid valve is provided with a circulation pipe for circulating a sterilizing medium. 請求項１４〜１８のいずれか一項に記載の飲料供給装置であるウォータサーバ。 The water server which is the beverage supply device according to any one of claims 14 to 18 . 請求項１９に記載のウォータサーバは、冷水供給部側に前記電磁弁を備える、ウォータサーバ。 The water server according to claim 19 is a water server provided with the solenoid valve on the cold water supply unit side.
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KR1020197006641A KR102217952B1 (en) 2016-10-31 2017-10-30 Electronic valve and beverage supply device
PCT/JP2017/039100 WO2018079770A1 (en) 2016-10-31 2017-10-30 Electromagnetic valve and beverage supplying device
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