JP2003294166A - Thermal valve - Google Patents
Thermal valveInfo
- Publication number
- JP2003294166A JP2003294166A JP2002098440A JP2002098440A JP2003294166A JP 2003294166 A JP2003294166 A JP 2003294166A JP 2002098440 A JP2002098440 A JP 2002098440A JP 2002098440 A JP2002098440 A JP 2002098440A JP 2003294166 A JP2003294166 A JP 2003294166A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- spring
- temperature
- support member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Temperature-Responsive Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発熱体への通電に
より感温素子を加熱し、その感温素子の伸縮で弁体を移
動して弁座の開閉を行なう熱動弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal valve that heats a temperature sensitive element by energizing a heating element and moves the valve element by expanding and contracting the temperature sensitive element to open and close a valve seat.
【０００２】[0002]
【従来の技術】従来、弁箱内に設けた弁機構に、温度変
化により伸縮する感温素子を連繋し、その感温素子に、
通電により作動する発熱体を当接させ、発熱体への通電
のオン、オフにより感温素子を収縮させて弁機構の開閉
を行なう熱動弁が知られているが、このような熱動弁と
して公知のものに、特開昭６２−２７８３９１号公報の
図３及び図４（本願図面の図５及び図６）のものがあ
る。この図５及び図６について簡単に説明すると、熱動
弁５０は、流入口５２と流出口５３とを備えた弁箱５１
内に、その流入口５２と流出口５３との連通を開閉する
弁座５５と、弁体５６と、弁体５６を弁座５５に向けて
付勢するスプリング５７とよりなる弁機構５４を収納し
ている。該弁機構５４は弁杆５８及びつなぎ部材５９に
より、形状記憶合金よりなる感温素子６１と連繋し、弁
箱５１の外面に一体的に装着した合成樹脂材などの絶縁
材よりなる箱状のホルダー６０の底面に装着されるヒー
ターである発熱体６２は、上下両面を極板６３，６３で
サンドイッチ状に挟持した状態で、該ホルダー６０の底
面に平行する平面に沿う姿勢として組付け保持してい
る。2. Description of the Related Art Conventionally, a valve mechanism provided in a valve box is connected to a temperature-sensitive element which expands and contracts due to temperature change.
A thermal valve is known in which a heating element operated by energization is brought into contact, and the temperature sensing element is contracted by turning on / off the energization of the heating element to open / close the valve mechanism. Known examples include those shown in FIGS. 3 and 4 of JP-A-62-278391 (FIGS. 5 and 6 of the drawings of the present application). Briefly describing FIGS. 5 and 6, the thermal valve 50 includes a valve box 51 having an inflow port 52 and an outflow port 53.
A valve mechanism 54 including a valve seat 55 that opens and closes the communication between the inflow port 52 and the outflow port 53, a valve body 56, and a spring 57 that biases the valve body 56 toward the valve seat 55 is housed therein. is doing. The valve mechanism 54 is connected to a temperature-sensitive element 61 made of a shape memory alloy by a valve rod 58 and a connecting member 59, and has a box shape made of an insulating material such as a synthetic resin material integrally attached to the outer surface of the valve box 51. The heating element 62, which is a heater mounted on the bottom surface of the holder 60, is assembled and held as a posture along a plane parallel to the bottom surface of the holder 60 with the upper and lower surfaces sandwiched between the electrode plates 63, 63 in a sandwich shape. ing.
【０００３】この熱動弁５０は、発熱体６２の回路に設
けてあるスイッチ６４をオフからオンに作動させて発熱
体６２に通電すると、該発熱体６２が所定の温度になる
まで発熱し、その熱が極板６３，６３を介して前記形状
記憶合金よりなる感温素子６１に伝導し、その感温素子
６１が加熱される。そして、感温素子６１の温度が記憶
温度に達することで、記憶されていた状態に変化する。
これにより、形状記憶合金よりなる感温素子６１は図６
に示すように、つなぎ部材５９を押し上げ、そのつなぎ
部材５９に連繋している弁杆５８及び弁体５６を押し上
げて開弁状態とするものである。This heat valve 50 heats up the heating element 62 until it reaches a predetermined temperature when the switch 64 provided in the circuit of the heating element 62 is operated from OFF to ON to energize the heating element 62. The heat is conducted to the temperature sensing element 61 made of the shape memory alloy through the electrode plates 63, 63, and the temperature sensing element 61 is heated. When the temperature of the temperature sensitive element 61 reaches the stored temperature, the stored state changes.
As a result, the temperature-sensitive element 61 made of the shape memory alloy is shown in FIG.
As shown in FIG. 5, the connecting member 59 is pushed up, and the valve rod 58 and the valve body 56 linked to the connecting member 59 are pushed up to open the valve.
【０００４】上記のものにおいては、弁機構の弁体は上
下両側からスプリングと感温素子の弾性力により付勢さ
れ、発熱体の熱により感温素子の伸縮が変化することで
弁体が上下に摺動するが、熱動弁を組立てる際には、弁
箱には弁体及び該弁体を付勢するスプリングを、ホルダ
ーには感温素子及びつなぎ部材等と、両側から別々に収
容する必要があり、組立作業が面倒であった。In the above structure, the valve body of the valve mechanism is urged from the upper and lower sides by the elastic force of the spring and the temperature sensing element, and the expansion and contraction of the temperature sensing element is changed by the heat of the heating element, so that the valve element moves up and down. When the thermal valve is assembled, the valve body and the spring for urging the valve body are housed in the valve box, and the temperature sensing element and the connecting member are housed in the holder separately from both sides. It was necessary and the assembly work was troublesome.
【０００５】また、弁体を付勢するスプリングを流入ロ
に介在させているため、このスプリングにより流入口か
ら流出口への通路が狭められ圧力損失が増加してしま
い、充分な通水量を確保することが出来なかった。Further, since the spring for urging the valve element is interposed in the inflow slot, this spring narrows the passage from the inflow port to the outflow port, increasing the pressure loss and ensuring a sufficient water flow rate. I couldn't do it.
【０００６】[0006]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、組立作業を容易に行なうことができ、流入
口から流出口への充分な通水量を確保することのできる
熱動弁を提供することである。SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a thermal valve which can easily perform an assembly work and can secure a sufficient water flow amount from an inlet to an outlet. Is to provide.
【０００７】[0007]
【課題を解決するための手段】本発明は請求項１では、
熱動弁は、流入口と流出口を連通する弁室と、該弁室の
流路を開閉するための弁座とが形成された弁箱と、該弁
箱に結合し、前記弁座を開閉する弁体と、該弁体に連繋
し弁体を弁座から離れる方向に付勢する感温素子と、通
電により発熱して感温素子を加熱することで伸縮させる
発熱体と、弁体を弁座に着座する方向に付勢するスプリ
ングとが装着されるホルダーとを備え、前記弁体と連繋
した支持部材と、該支持部材を介して弁体を弁座から離
れる方向に付勢する感温素子と、支持部材を介して弁体
を弁座側に付勢するスプリングとをケースに収容し、該
ケースは発熱体と共にホルダーに装着し、感温素子とス
プリングにより支持部材を両側から弾力的に付勢して、
支持部材と連繋した弁体により弁座を開閉するものであ
る。According to the present invention, there is provided:
The thermal valve includes a valve chamber in which a valve chamber communicating the inlet and the outlet, a valve seat for opening and closing a flow path of the valve chamber, and a valve box coupled to the valve box, A valve element that opens and closes; a temperature-sensitive element that is connected to the valve element and biases the valve element away from the valve seat; a heat-generating element that generates heat when energized to expand and contract by heating the temperature-sensitive element; A holder mounted with a spring for urging the valve seat in a direction to be seated on the valve seat, and a support member connected to the valve body, and urging the valve body in a direction away from the valve seat via the support member. A temperature sensitive element and a spring for urging the valve element toward the valve seat side through a support member are housed in a case, and the case is attached to a holder together with a heating element, and the temperature sensitive element and the spring support the support member from both sides. Elastically bias,
The valve seat is opened and closed by the valve body linked to the support member.
【０００８】請求項２では、前記ケースは、ホルダー
と、弁箱に装着され弁体を挿通するプラグとの間に挟着
されるものである。In the second aspect, the case is sandwiched between the holder and the plug which is mounted on the valve box and which inserts the valve body.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図に
基づいて詳細に説明する。図１乃至図４に示すように、
熱動弁Ａは弁室７が形成される弁箱１と、支持部材３
１，感温素子３５及びスプリング３６等が収容されるケ
ース２６、通電により発熱する発熱体２０、電極板２１
等が収容されるホルダー１６とから構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 to 4,
The thermal valve A includes a valve box 1 in which a valve chamber 7 is formed and a support member 3
1, a case 26 accommodating a temperature sensitive element 35, a spring 36, etc., a heating element 20 that generates heat when energized, an electrode plate 21
And a holder 16 for accommodating the like.
【００１０】前記弁箱１は外側面の一側に流体の流入口
２が、下部底面には流体の流出口３が穿設され、流入口
２から流出口３へ湯水等の流体が通過するように上下に
形成された円筒部４の上面には、開口孔５が穿設されて
おり、円筒部４の外周面側部には突部６が上下方向に等
間隔で複数個形成され、該筒部６には前記ホルダー１６
を結合するための雌ねじ部６ａが形成されている。前記
円筒部４の内部には流入口２と流出口３とを連通する弁
室７が形成され、該弁室７内には流入口２と流出口３を
仕切るように隔壁８が形成されており、該隔壁８には上
下方向に弁口９を穿設し、該弁口９の上面側の周縁に弁
座１０が形成されている。A fluid inlet 2 is formed on one side of the outer surface of the valve box 1 and a fluid outlet 3 is formed on the lower bottom surface of the valve housing 1. Fluid such as hot water flows from the inlet 2 to the outlet 3. As described above, an opening hole 5 is formed in the upper surface of the cylindrical portion 4 formed vertically, and a plurality of projections 6 are formed on the outer peripheral surface side of the cylindrical portion 4 at equal intervals in the vertical direction. The holder 16 is provided on the tubular portion 6.
A female screw portion 6a is formed for connecting the. A valve chamber 7 that connects the inflow port 2 and the outflow port 3 is formed inside the cylindrical portion 4, and a partition wall 8 is formed in the valve chamber 7 so as to partition the inflow port 2 and the outflow port 3. The partition wall 8 is provided with a valve opening 9 in the up-down direction, and a valve seat 10 is formed on the peripheral edge on the upper surface side of the valve opening 9.
【００１１】前記弁体１１は弁室７の上下方向に収容さ
れ、弁座１０に対して進退するパッキン１２と、該パッ
キン１２の上部に連結する弁軸１４とを備え、弁座１０
に対して上下に進退して弁座１０を開閉するものであ
る。The valve body 11 is housed in the valve chamber 7 in the vertical direction, and is provided with a packing 12 which moves forward and backward with respect to the valve seat 10, and a valve shaft 14 which is connected to the upper portion of the packing 12, and the valve seat 10 is provided.
On the other hand, the valve seat 10 is opened and closed by opening and closing.
【００１２】前記パッキン１２は弁座１０の上面に着座
可能な円板状で、下方に螺着されたナット１３により弁
体１１に固定されている。該ナット１３は図３に示すよ
うに、前記弁口９の周縁に上下摺動自在とした所要本数
の脚部１３ａを同時成型により突設して、この脚部１３
ａにより弁体１１は振動を起こすことなく安定した姿勢
で弁口９内を上下に移動するようにしている。The packing 12 is a disk-shaped member that can be seated on the upper surface of the valve seat 10, and is fixed to the valve body 11 by a nut 13 screwed downward. As shown in FIG. 3, the nut 13 is provided with a required number of leg portions 13a that are vertically slidable on the peripheral edge of the valve opening 9 by projection by simultaneous molding.
By a, the valve body 11 moves up and down in the valve opening 9 in a stable posture without causing vibration.
【００１３】前記弁軸１４の上部には、拡径された筒部
１４ａと該筒部１４ａより小径の雄ねじ部１４ｄとが一
体に連続して形成され、筒部１４ａは軸方向に環状の溝
孔１４ｂが複数個並列して形成されており、該溝孔１４
ｂには流体をシールするためのシール部材１４ｃが装着
され、この弁軸１４は、円筒形のプラグ１５の軸方向中
心に穿設した挿孔１５ａに上下摺動自在に挿通され、プ
ラグ１５は前記円筒部４の開口孔５に嵌合されるもので
ある。An expanded cylindrical portion 14a and a male screw portion 14d having a smaller diameter than the cylindrical portion 14a are integrally and continuously formed on the upper portion of the valve shaft 14, and the cylindrical portion 14a has an axially annular groove. A plurality of holes 14b are formed in parallel, and the groove holes 14b
A seal member 14c for sealing a fluid is attached to b, and the valve shaft 14 is vertically slidably inserted into an insertion hole 15a bored at the axial center of a cylindrical plug 15. It is fitted in the opening hole 5 of the cylindrical portion 4.
【００１４】前記ホルダー１６は図３に示すように、一
方の側面及び底面を開口し発熱体２０を収容可能な略円
筒形の保持部１９と、温度変化により伸縮する感温素子
３５及びスプリング３６等を収容するケース２６と、ビ
ス１８により弁箱１に固定するための円柱形に形成した
複数個の筒体１７とを備えている。As shown in FIG. 3, the holder 16 has a substantially cylindrical holding portion 19 having one side surface and a bottom surface opened to accommodate the heating element 20, a temperature sensing element 35 and a spring 36 which expand and contract according to temperature changes. A case 26 for accommodating the above and the like, and a plurality of cylindrical bodies 17 formed in a cylindrical shape for fixing to the valve box 1 with screws 18 are provided.
【００１５】前記保持部１９に収容されるヒーターであ
る発熱体２０は、一般にはＰＴＣヒーターと呼ばれる正
特性サーミスタが使用され、通電により発熱するもので
あり、保持部１９に収容可能な略円盤形で、上下両面の
全面に電極板２１，２１が密着している。該電極板２１
にはコード２２が接続され、該コード２２の他端はスイ
ッチ２３に接続しており、該スイッチ２３の操作により
電極板２１への通電状態をオン・オフに切り替えるもの
である。As the heating element 20 which is a heater accommodated in the holding portion 19, a positive temperature coefficient thermistor generally called a PTC heater is used, which generates heat when energized, and has a substantially disc shape which can be accommodated in the holding portion 19. The electrode plates 21 and 21 are in close contact with the entire upper and lower surfaces. The electrode plate 21
Is connected to a cord 22, and the other end of the cord 22 is connected to a switch 23. By operating the switch 23, the energization state of the electrode plate 21 is switched between on and off.
【００１６】ホルダー１６は保持部１９の一方の側面に
挿通孔２４を開口しており、該挿通孔２４にはゴム等の
弾性体からなるキャップ２５を装着し、該キャップ２５
にコード２２を挿通させることで、コード２２が不用意
に外れないようにするとともに、保持部１９に外部から
水等が浸入し、この水が発熱体２０に付着しないように
している。The holder 16 has an insertion hole 24 formed in one side surface of the holding portion 19, and a cap 25 made of an elastic material such as rubber is attached to the insertion hole 24.
By allowing the cord 22 to be inserted therethrough, the cord 22 is prevented from being unintentionally detached, and water or the like enters the holding portion 19 from the outside to prevent the water from adhering to the heating element 20.
【００１７】ホルダー１６の保持部１９に結合されるケ
ース２６は中空の略円筒形で、放熱性及び熱伝導性の高
い材料である例えば真鍮，アルミニウム，銅等又はその
他の材料で形成されており、円筒部２７の上下両端には
該円筒部２７より外径をやや大径としたフランジ部２
８，２９がそれぞれ形成されており、一方の第１フラン
ジ部２８は他方の第２フランジ部２９より縦長で、外周
面に環状に形成した凹部２８ａにシール部材２８ｂが装
着され、この第１フランジ部２８の上面を保持部１９に
収容された電極板２１に密着させた状態で、ホルダー１
６の保持部１９に結合している。The case 26 connected to the holding portion 19 of the holder 16 has a hollow, substantially cylindrical shape, and is made of a material having high heat dissipation and heat conductivity, such as brass, aluminum, copper or the like. The flange portion 2 having an outer diameter slightly larger than that of the cylindrical portion 27 is provided at both upper and lower ends of the cylindrical portion 27.
8 and 29 are respectively formed, one first flange portion 28 is vertically longer than the other second flange portion 29, and a seal member 28b is attached to a concave portion 28a formed in an annular shape on the outer peripheral surface. With the upper surface of the portion 28 in close contact with the electrode plate 21 housed in the holding portion 19, the holder 1
6 is connected to the holding portion 19.
【００１８】前記ケース２６の内部に形成された収容室
３０には、支持部材３１と感温素子３５とスプリング３
６とが収容されている。前記支持部材３１はケース２６
の収容室３０より小径の略円筒状で、一端に環状の鍔部
３２が形成され、該鍔部３２はケース２６の内周面に摺
接し、この支持部材３１の外周面を覆うようにして、ケ
ース２６の内周面との間に感温素子３５が収容される。A support member 31, a temperature sensitive element 35, and a spring 3 are provided in a housing chamber 30 formed inside the case 26.
6 and 6 are accommodated. The support member 31 is a case 26.
Is formed in a substantially cylindrical shape having a diameter smaller than that of the housing chamber 30, and an annular flange portion 32 is formed at one end thereof. The flange portion 32 is in sliding contact with the inner peripheral surface of the case 26 and covers the outer peripheral surface of the support member 31. The temperature sensitive element 35 is housed between the case 26 and the inner peripheral surface thereof.
【００１９】前記感温素子３５は周囲の温度変化に応じ
て弾性力が変化し、温度が所定の温度以下の場合は比較
的小さな弾性力を生じる短縮状態となり、所定の温度以
上に上昇した場合には大きな弾性力を生じ伸張状態とな
り、支持部材３１を引き上げる形状記憶合金製のスプリ
ングから形成され、支持部材３１の鍔部３２と前記プラ
グ１５の上端面の間に保持される。支持部材３１の鍔部
３２から開口した第１開口孔３３と前記第１フランジ部
２８の内周側の間にはスプリング３６が収容され、この
スプリング３６は支持部材３１を介して前記弁体１１を
弁座１０に着座する方向に付勢している。また、支持部
材３１の底面に開口した第２開口孔３４には、前記弁体
１１の雄ねじ部１４ｄと螺合するための雌ねじ部３４ａ
が形成されている。The elastic force of the temperature sensitive element 35 changes in response to a change in ambient temperature, and when the temperature is below a predetermined temperature, a relatively small elastic force is generated, and when the temperature exceeds a predetermined temperature. Is formed of a spring made of a shape memory alloy that pulls up the support member 31 by generating a large elastic force, and is held between the flange portion 32 of the support member 31 and the upper end surface of the plug 15. A spring 36 is housed between the first opening hole 33 opened from the flange portion 32 of the support member 31 and the inner peripheral side of the first flange portion 28. Is urged in the direction to be seated on the valve seat 10. Further, in the second opening hole 34 opened on the bottom surface of the support member 31, a female screw portion 34a for screwing with the male screw portion 14d of the valve body 11.
Are formed.
【００２０】このようにケースには支持部材と感温素子
とスプリングとが収容され、支持部材と連繋した弁体に
よる弁座の開閉を、感温素子とスプリングの釣り合いに
より行なうので、弁体の下方からスプリングにより弁体
を付勢する必要がない。したがって、弁体及びスプリン
グを弁箱の底面から収容する必要がなく、組立性が大幅
に向上する。なお、本実施例では感温素子として形状記
憶合金製のスプリングを使用した例を説明したが、感温
素子はワックスサーモスタットやバイメタルであっても
よい。In this way, the support member, the temperature-sensitive element and the spring are housed in the case, and the valve seat connected to the support member opens and closes the valve seat by the balance between the temperature-sensitive element and the spring. There is no need to bias the valve element from below with a spring. Therefore, it is not necessary to accommodate the valve element and the spring from the bottom surface of the valve box, and the assembling property is greatly improved. In this embodiment, an example in which a spring made of a shape memory alloy is used as the temperature sensitive element has been described, but the temperature sensitive element may be a wax thermostat or a bimetal.
【００２１】以上のように構成された熱動弁Ａは、発熱
体２０に通電されていない場合は図１に示すように、ケ
ース２６の内部で支持部材３１は感温素子３５とスプリ
ング３６との間で互いの反対方向からの弾性力により付
勢されており、感温素子３５の弾性力はスプリング３６
の弾性力よりも充分に小さく、弁体１１はスプリング３
６の弾性力により下方向へ付勢されて、弁体１１のパッ
キン１２が弁座１０に着座するので、流体の流入口２か
ら流出口３への通水は遮断され、止水状態となってい
る。In the thermal valve A constructed as described above, when the heating element 20 is not energized, as shown in FIG. 1, the supporting member 31 includes the temperature sensitive element 35 and the spring 36 inside the case 26. Are urged by elastic forces from opposite directions, the elastic force of the temperature sensitive element 35 is
Is sufficiently smaller than the elastic force of
Since the packing 12 of the valve body 11 is seated on the valve seat 10 by being urged downward by the elastic force of 6, the fluid flow from the inflow port 2 to the outflow port 3 is blocked, and the water stop state is set. ing.
【００２２】次にスイッチ２３の操作で発熱体２０に通
電された場合は、発熱体２０は発熱し、その熱量は発熱
体２０に密着している電極板２１を介して保持部１９の
収容室３０に結合しているケース２６を加熱して、この
ケース２６は熱伝導性の良好な材料で形成されているの
で、発熱体２０の熱は速やかに内部の感温素子３５に伝
達して該感温素子３５を伸張させ、図２に示すようにス
プリング３６の弾性力に抗して支持部材３１を上昇さ
せ、該支持部材３１と連携した弁体１１が引き上げられ
るので、弁体１１は弁座１０から離れる方向に移動し、
流体は流入口２から弁口９を介して流出口３へ供給され
る。この場合、弁室７にはスプリングが収容されていな
いので通路を妨害するものがなく、スプリングが抵抗と
なることによる圧力損失がなく、流体はスムーズに通過
し通水量が制限されることがない。Next, when the heat generating element 20 is energized by operating the switch 23, the heat generating element 20 generates heat, and the amount of heat is transferred through the electrode plate 21 that is in close contact with the heat generating element 20 to the accommodating chamber of the holding portion 19. The case 26 coupled to 30 is heated, and since the case 26 is made of a material having good thermal conductivity, the heat of the heating element 20 is quickly transmitted to the internal temperature sensitive element 35, and The temperature sensing element 35 is extended, the support member 31 is raised against the elastic force of the spring 36 as shown in FIG. 2, and the valve body 11 associated with the support member 31 is pulled up. Move away from the seat 10,
The fluid is supplied from the inflow port 2 to the outflow port 3 via the valve port 9. In this case, since no spring is housed in the valve chamber 7, there is nothing that obstructs the passage, there is no pressure loss due to the resistance of the spring, and the fluid passes smoothly and the water flow amount is not limited. .
【００２３】そしてスイッチ２３をオフとし、発熱体２
０からの発熱が停止すると、収容室３０内の温度は速や
かに下降し、感温素子３５を収縮させてスプリング３６
の付勢力により弁体１１を弁座１０に着座させることが
できる。この場合、ケース２６は放熱性の高い材料であ
るので、収容室３０内の温度は速やかに下降し、感温素
子３５を収縮させてスプリング３６の付勢力により弁体
１１を弁座１０に着座させ、流入口２から流出口３への
通水を遮断することができる。Then, the switch 23 is turned off, and the heating element 2
When the heat generation from 0 is stopped, the temperature in the storage chamber 30 rapidly drops, causing the temperature sensing element 35 to contract and the spring 36
The valve element 11 can be seated on the valve seat 10 by the urging force of. In this case, since the case 26 is made of a material having a high heat dissipation property, the temperature inside the storage chamber 30 is rapidly lowered, the temperature sensing element 35 is contracted, and the valve element 11 is seated on the valve seat 10 by the urging force of the spring 36. Thus, water flow from the inflow port 2 to the outflow port 3 can be blocked.
【００２４】[0024]
【発明の効果】本発明の熱動弁は、感温素子とスプリン
グとをケースに収容し、ケースを発熱体と共にホルダー
に装着するようにしたので、スプリングのホルダーへの
着脱作業を極めて容易に行なうことができ、組立性が大
幅に向上する。In the thermal valve of the present invention, the temperature sensitive element and the spring are housed in the case, and the case is attached to the holder together with the heating element. Therefore, the work of attaching and detaching the spring to the holder is extremely easy. It can be carried out and the assemblability is greatly improved.
【００２５】また、弁体を弁座に着座する方向に付勢す
るスプリングは、感温素子と共にケースに収容され、流
体が通過する弁室には収容されないので、弁室を妨害す
るものがなく流体はスムーズに通過し、スプリングが抵
抗となることによる圧力損失を無くし、充分な通水量を
確保することができる。Further, since the spring for urging the valve element in the direction of seating on the valve seat is housed in the case together with the temperature sensing element and not in the valve chamber through which the fluid passes, there is nothing that obstructs the valve chamber. The fluid passes smoothly, the pressure loss due to the resistance of the spring is eliminated, and a sufficient amount of water can be secured.
【図１】熱動弁の閉弁状態を示す縦断面図である。FIG. 1 is a vertical sectional view showing a closed state of a thermal valve.
【図２】熱動弁の開弁状態を示す縦断面図である。FIG. 2 is a vertical cross-sectional view showing a valve opening state of a thermal valve.
【図３】熱動弁の分解斜視図である。FIG. 3 is an exploded perspective view of a thermal valve.
【図４】熱動弁の全体斜視図である。FIG. 4 is an overall perspective view of a thermal valve.
【図５】従来技術の説明図で、熱動弁の閉弁状態を示す
説明図である。FIG. 5 is an explanatory diagram of a conventional technique and is an explanatory diagram showing a closed state of a thermal valve.
【図６】従来技術の説明図で、熱動弁の開弁状態を示す
説明図である。FIG. 6 is an explanatory diagram of a conventional technique and is an explanatory diagram showing a valve opening state of a thermal valve.
１ 弁箱 ２ 流入口 ３ 流出口 ７ 弁室 １０ 弁座 １１ 弁体 １５ プラグ １６ ホルダー ２０ 発熱体 ２６ ケース ３１ 支持部材 ３５ 感温素子 ３６ スプリング Ａ 熱動弁 1 valve box 2 Inlet 3 Outlet 7 valve chamber 10 seat 11 valve body 15 plugs 16 holder 20 heating element 26 cases 31 Support member 35 Temperature sensor 36 spring A heat valve
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3H057 AA05 BB02 BB15 BB38 CC03 DD13 FA24 FB16 FC04 HH03 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 3H057 AA05 BB02 BB15 BB38 CC03 DD13 FA24 FB16 FC04 HH03
Claims (2)
室の流路を開閉するための弁座とが形成された弁箱と、
該弁箱に結合し、前記弁座を開閉する弁体と、該弁体に
連繋し弁体を弁座から離れる方向に付勢する感温素子
と、通電により発熱して感温素子を加熱することで伸縮
させる発熱体と、弁体を弁座に着座する方向に付勢する
スプリングとが装着されるホルダーとを備え、前記弁体
と連繋した支持部材と、該支持部材を介して弁体を弁座
から離れる方向に付勢する感温素子と、支持部材を介し
て弁体を弁座側に付勢するスプリングとをケースに収容
し、該ケースは発熱体と共にホルダーに装着し、感温素
子とスプリングにより支持部材を両側から弾力的に付勢
して、支持部材と連繋した弁体により弁座を開閉するこ
とを特徴とする熱動弁。1. A valve box having a valve chamber communicating with an inlet and an outlet, and a valve seat for opening and closing a flow path of the valve chamber,
A valve element that is connected to the valve box and opens and closes the valve seat, a temperature-sensitive element that is connected to the valve element and biases the valve element in a direction away from the valve seat, and heat is generated by energization to heat the temperature-sensitive element. A holder provided with a heating element that expands and contracts by this means, and a spring that urges the valve element in the direction in which the valve element is seated on the valve seat, and a support member that is in communication with the valve element, and a valve via the support member. A temperature-sensitive element for urging the body away from the valve seat and a spring for urging the valve body toward the valve seat via a support member are housed in a case, and the case is attached to a holder together with a heating element, A thermal valve in which a support member is elastically urged from both sides by a temperature-sensitive element and a spring, and a valve seat connected to the support member opens and closes a valve seat.
され弁体を挿通するプラグとの間に挟着されることを特
徴とする請求項１記載の熱動弁。2. The thermal valve according to claim 1, wherein the case is sandwiched between a holder and a plug that is mounted on the valve box and inserts the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002098440A JP2003294166A (en) | 2002-04-01 | 2002-04-01 | Thermal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002098440A JP2003294166A (en) | 2002-04-01 | 2002-04-01 | Thermal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003294166A true JP2003294166A (en) | 2003-10-15 |
Family
ID=29240435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002098440A Pending JP2003294166A (en) | 2002-04-01 | 2002-04-01 | Thermal valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003294166A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100762914B1 (en) | 2006-06-27 | 2007-10-05 | 주식회사 아이엠코리아가스보일러 | Air vent |
| JP2013079660A (en) * | 2011-10-03 | 2013-05-02 | Rinnai Corp | Thermal valve |
| JP2014114924A (en) * | 2012-12-12 | 2014-06-26 | Rinnai Corp | Thermally-operated valve |
-
2002
- 2002-04-01 JP JP2002098440A patent/JP2003294166A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100762914B1 (en) | 2006-06-27 | 2007-10-05 | 주식회사 아이엠코리아가스보일러 | Air vent |
| JP2013079660A (en) * | 2011-10-03 | 2013-05-02 | Rinnai Corp | Thermal valve |
| JP2014114924A (en) * | 2012-12-12 | 2014-06-26 | Rinnai Corp | Thermally-operated valve |
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