丄JJOJ// 26340pif.doc 九、發明說明： 【發明所屬之技術領域】 本發明是關於一種電動控制 電動控制閱對直動間做開度； 【先前技術】 在全閥(§I〇ve valve)等直動閥的開度進行#作味 在王開w為了防止内部浅漏 ^丁“作時， 按壓在閥開口部上。另一 疋上的力將閥體 作所必需的力可較上述的般來說，t間開度的動 的按壓力之扭矩做Λ。如㈣加該全開時所必需 因周圍溫度環境與===間體的驅動用馬達時，則 能夠實現言扛铝从认 〜早疋的效率的差異等，要選宏 了能夠承受這種馬達以種:度的大型馬達。而且，為 型化。因此，將I法避’致動器的齒輪單元也需要大 方面的不利問題Γ 錢控制閥全體的大型化或成本 並在全閉時可$轉馬賴她做成可變， 早期公開特開平8 Γ2g動閥體°_有一種例如曰本專利 閥。特開平8S24 做為進行這種控制的電動控制 等旋轉間時，對_是否3流量控制闊是在控制球形閥 閉位置附近使馬處於全閉位置進行檢測，並在全 是利用具有流二St矩增加，其中球形闊等旋轉閥 進行調節。藉由這樣的閥體的旋轉操作，而對開度 紙的?工刮，可在從全閉位置驅動閥體時， 7 / ί-t 1336377 26340pif.doc 防止閥體緊貼在全驗置上，能夠確實地進行閥動體。 特開平S —247323的流量控制閥除了全閉 =因:體等的影響而需要高扭矩驅動的情况。二 ’如上所述’為了確實地防止峨漏，需要在 形成閥胆與閥開口部相接觸的全閉狀態後，再 轉扭矩而按㈣體的操作，但特開平8 —期 法應對該要求。 〜稱成無 另外’在如特開平8 —247323那樣，於開 :馬=驅=衝的結構，如實際上馬 動:; =動作，财可能無法《當的位置㈣ 了所:==；^=控:閥需要預先登錄 衝的頻率控制之微電腦，這將會有達的驅動脈 的複雜化與高成本化。 . 動咨的控制電路 【發明内容】 有鑑上述問題，本發 電動控制閥中所使用μ + β 禋电動控刮閥以及在哕 -控制中，卜用的電動致動器，其可藉由在閥開户二 扭矩動-進行轉換’藉此準確地施加所= 本發明提供一種電動控制閱，其包 動，、驅動控制部以及扭矩檢B ]⑯、電動致 驅動，控制間開度。雷 碉主體，以間車由的 “動致動裔的輸出軸與該閥軸連結， 26340pif.doc =^:_所形成的驅動_，一 _馬達的此控制閥主體的間開度軸， -。杻矩檢為低轉矩和高轉起=二部 用=矩&卿山 I部依據 扭矩切換為如矩的^則，將電_達的轉 k j上述電動控制閥中，閥主_ θ丄 括流體出入用的閥開口心=肢疋由直動閱構成’並包 轴沿著轴方向進行:又置在閥輪的端部的閥體。閥 矩檢測裝置是在 卢=體打開或關閉閱開口部。扭 軸的旋轉受到限制時開狀態，使輪出 檢測，做為負載扭翅/欠電動馬k傳送的驅動扭矩進行 動』上Ϊ電=，中，扭矩轉置更包括:第一傳 制裝置。第一偉叙1弟二傳動齒輪、開關以及開關控 二傳動酱輪與第輪用以傳送電動馬達的驅動扭矩。第 合。第三傳動齒動齒輪鄰接，並與第一傳動齒輪咬 驅動扭矩傳送到^出、第二傳動齒輪咬合，並將電動馬達的 馬達的扭矩切轉^4軸。開關控制驅動控制部，進行電動 制時，以與第_1傳。開關控制裝置在輸出軸的旋轉受到限 矩相對應之倉截—動齒輪及第二傳動齒輪所傳送的負载扭 在I述㈣H埃行動作，使開關接通或斷開。 固定轴其！，_装置是:具有第- 疋辨安裝有可自由旋轉的第二傳動齒輪； 1336377 26340pif.doc 也在第二固定輪上，第二固定軸做為第三 傳動齒輪的蛛中心；由以第二固定輛為中心的旋轉是： 彈性體的恢復力限制之组件所， j疋π疋又 =::第一傳動二：== 負載扭矩減應之貞載，使祕體產生形變，並 定軸為中妓行旋轉，使開關接通辑開。 一® 攸出一種電動致動器，其包括驅動控制部盘 。驅動控制部將電動馬達的驅動扭矩切換為 載置對在閥開度的 的驅動扭矩切換為低扭矩或高扭矩。 馬達 去仏在ΐ"4電紐動11中’扭矩檢測裝置更包括第-傳動 。：Γ2!輪、第三傳動齒輪、開關以及開關控制 第三傳動齒輪與第二傳=交:與 扭矩傳送到該輸出轴。m化歷、動馬達的驅動 動馬達所傳送的驅動扭:一第二傳動齒輪從電 行動作，使開關接;;^ 定轴在致動器中，開關控制裝置是:具有第1 弟—固定轴安裝有可㈣輯㈣二傳動齒輪^ 1336377 26340pif.doc 由地旋轉地安裝在第二固定轴上，第二固定輪做 動齒輪的旋轉中心·，由以第二固定軸為中心的旋轉:彈 性體的恢復力限制之組件所構成；以及在輪出轴白:= 到限制時，以與第-傳動齒輪和第二傳動齒輪 : 載扭矩相對應之負載，使彈性體產生形變，並以第二固二 軸為中心進行旋轉，使開關接通或斷開。 ^疋 根據本發明的話，其在閥開度的控制中 器1上所施加-定以上的負载扭矩進行檢測，並依:負= =矩的檢測’將電動扭矩3的驅動扭矩切換 戈 :矩，所以W常以低扭矩進行動作，並依據需= 般扭矩切換為尚扭矩。因此， 型低成本構成，二==大 不疋以閥體的位置來切換驅動丄JJOJ// 26340pif.doc IX. Description of the Invention: [Technical Field] The present invention relates to an electric control electric control read-to-straight opening degree; [Prior Art] in a full valve (§I〇ve valve ) The opening degree of the direct-acting valve is performed. In order to prevent the internal shallow leak, the pressure is applied to the valve opening. The force of the other force on the valve body can be compared with the above. Generally speaking, the torque of the dynamic pressure of the opening of t is the same as that of the pressure of the pressure of the opening of the t. For example, when the driving motor for the ambient temperature environment and the === between the full opening is required, the aluminum can be realized. In order to recognize the difference in efficiency, etc., it is necessary to select a large-sized motor that can withstand such a motor. In addition, it is a type. Therefore, the gear unit of the I method avoiding the actuator also needs a large aspect. The unfavorable problem Γ The large-scale or cost of the money control valve is fully variable when it is fully closed. The early open special opening 8 Γ 2g moving valve body has a patent valve such as 曰本. When the 8S24 is used as a rotary room for electric control such as this control, whether or not _ is 3 The flow control is wide in the vicinity of the control ball valve closing position to make the horse in the fully closed position for detection, and all of them are adjusted by using the flow two St moment increase, wherein the spherical wide rotary valve is adjusted. With such a valve body rotation operation And the scraper of the paper can drive the valve body from the fully closed position, 7 / ί-t 1336377 26340pif.doc to prevent the valve body from sticking to the full inspection, and can reliably perform the valve body. The flow control valve of Kaiping S-247323 is required to be fully closed = high torque drive due to the influence of the body, etc. 2. As described above, in order to reliably prevent leakage, it is necessary to form a valve bonnet in contact with the valve opening. After the fully closed state, the torque is changed and the operation is performed according to the (four) body, but the special opening and closing method is used to deal with the requirement. ~ It is said that there is no other 'in the special opening 8 - 247323, in the open: horse = drive = rush The structure, such as the actual horse movement:; = action, the money may not be able to "when the position (four) has been: ==; ^ = control: the valve needs to be pre-registered into the frequency control of the microcomputer, which will have the driving pulse Complexity and high cost. SUMMARY OF THE INVENTION In view of the above problems, the μ + β 禋 electric control wiper valve used in the present electric control valve and the electric actuator used in the 哕-control can be opened by the valve. Torque-to-convert "to accurately apply" = The present invention provides an electric control read, a wrap, a drive control, and a torque check B. 16, an electric drive, and a control opening degree. The inter-vehicle of the "moving actuating output shaft is connected to the valve shaft, 26340pif.doc = ^: _ formed by the drive _, a _ motor of the control valve body between the opening degree axis, -.杻Moment detection is low torque and high rotation = two parts = moment & Qingshan I part according to the torque switch to the same as the moment ^, the electric _ up to kj above the electric control valve, the valve main _ θ The opening of the valve for fluid inlet and outlet = the limb is formed by straight motion reading and the shaft is carried along the axial direction: the valve body is placed at the end of the valve wheel. The valve moment detecting device opens or closes the opening portion in the body. When the rotation of the torsion shaft is restricted, the on-off state is performed, so that the wheel-out detection is performed as the driving torque of the load-twisting/under-electric horse k transmission. In the middle, the torque transposition further includes: the first transmission device . The first Weishen 1 brother two transmission gears, switches and switch control two transmission sauce wheels and the first wheel to transmit the driving torque of the electric motor. The first. The third transmission gear is adjacent, and is engaged with the first transmission gear, the driving torque is transmitted to the second transmission gear, and the torque of the motor of the electric motor is cut to the shaft. The switch controls the drive control unit and transmits it to the _1th. The switch control device rotates the output shaft by the limit corresponding to the limit torque, and the load transmitted by the second transmission gear is twisted in the direction of I (4) H, so that the switch is turned on or off. Fix the shaft to it! , the device is: a second transmission gear with a freely rotatable installation; 1336377 26340pif.doc is also on the second fixed wheel, and the second fixed shaft is used as the spider center of the third transmission gear; The rotation of the center of the fixed vehicle is: The assembly of the restoring force of the elastic body, j疋π疋 and =:: the first transmission two: == The load torque is reduced by the load, so that the secret body is deformed and determined The axis rotates in the middle to make the switch turn on. One® pulls out an electric actuator that includes a drive control panel. The drive control unit switches the drive torque of the electric motor to a low torque or a high torque for the drive torque at the valve opening degree. The motor is in the 4"4 electric motor 11' torque detecting device further includes a first transmission. : Γ 2! wheel, third transmission gear, switch and switch control The third transmission gear communicates with the second transmission: and torque is transmitted to the output shaft. The driving torque transmitted by the driving motor of the m-calorie and the moving motor: a second transmission gear is operated from the electric line to make the switch be connected; and the fixed-axis is in the actuator, and the switch control device is: having the first brother- The fixed shaft is mounted with (4) series (4) two transmission gears ^ 1336377 26340pif.doc rotatably mounted on the second fixed shaft, the second fixed wheel rotates the center of the gear, and is rotated by the second fixed shaft : an assembly of the restoring force limit of the elastomer; and when the wheel shaft white: = is limited, the elastic body is deformed by a load corresponding to the first transmission gear and the second transmission gear: the load torque, and Rotate around the second solid axis to turn the switch on or off. According to the present invention, it is detected by applying a load torque of more than a predetermined value on the control unit 1 of the valve opening degree, and the driving torque of the electric torque 3 is switched according to the detection of negative = = moment. Therefore, W often operates with low torque and switches to the torque according to the required torque. Therefore, the type is low-cost, and the second == big is not to switch the drive with the position of the valve body.
的驅動時所產生的負载扭矩 而疋檢測在闕體P 確實地施加所需的扭矩。 換驅動扭矩，所以能夠 狀態直動閥的閥開度在全閉狀態或全開 的驅動扭恤制時，對電動馬達3所傳送 的全閉;過大=;=在=上Τ止 根據本發^體的按壓操作。 一傳動齒輪；鱼楚Μ 一胥得廷琶動馬達的驅動扭矩的第 合的第二傳動齒輪，—/動齒輪鄰接並且與第-傳動齒輪咬 的驅動才丑矩傳送^輪出:\動齒輪部6e並且將電動馬達 、弟二傳動齒輪；依據接通或斷 1336377 26340pif.doc 開控制驅動控制部所進行的扭矩切換；以及開關控制裝 置，在輸出軸的旋轉受到限制時，以與第一傳動齒輪及第 二傳動齒輪所傳送的負載扭矩相對應之負載荷進行動作， 使開關接通或斷開。因此，不需要複雜的電路，能夠以簡 易結構對在閥開度的控制時所產生並且對電動馬達3或傳 動齒輪的負載扭矩進行檢測。 根據本發明的話，開關控制裝置具有第一固定軸8， 其安裝有自由地旋轉的第二傳動齒輪；可自由旋轉地安裝 在做為第三傳動齒輪旋轉中心的第二固定軸上；由以第二 固定轴為中心的旋轉是由彈性體恢復力所限制的組件所構 成；在輸出軸的旋轉受到限制時，以與通過第一傳動齒輪 和第二傳動齒輪所傳送的負載扭矩相對應之負載，使彈性 體產生形變，並與第一固定軸一起以第二固定軸為中心進 行旋轉，使開關接通或斷開。因此，可利用簡易的構成而 貫現負載扭矩的檢測。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 實施例1 圖1為依據本發明實施例1所繪示之電動控制閥的結 構示意圖。為了說明内部結構，一部份以沿著電動致動器 的輸出軸及與其連結的閥軸的軸方向的剖面來表示。圖1 繪示構成實施例1的電動控制閥之電動致動器1及閥主體 12 1336377 26340pif.doc 造，構成-種扭矩檢測裝置，用 開口部上而使輸出轴4的旋 ^闕虹17各放灰閥 · „ +、]疋柃破鎖定時，在電動馬達3與 傳動回輪上的一疋以上的負載扭矩。 而且’在圖1的例子φ，士 ^ 體2使用，並如圖]所示:㈤即截止閥做為閥主 以及閥轴15插通滑動孔、流體通路18、19的區塊 、衰二 的區塊所構成。在這些區塊的 、’°。、: ’载置有環形的塾圈21和隔膜按壓部22。 = —間藉由通過隔麟壓 空間和間轴15的另而被分割為闕體 的上端是與電動致動器1的輸出軸4連社，並 用二二、右文裝有閥體17，且在該閥體Π的下端 周邊’ ^有在全閉時與閥開 ， 封構件Ha。閥轴15是隨著輪 :觸的雄、 用閥體17而使流體通路18卞勺疋4升降，亚利 流動。 、路18向流體通路19之流體的 f滑動孔16中所插入貫通 上，接觸 =構件23是由環形的 ^軸=4利用制動螺絲26固絲間主體 =’亚錯由在轴支持構件24 ^的 對制動螺絲26的固定位置相 ’ 15 I336377 26340pif.doc 而且’軸支持構件24的下面和閥輪]^ J利用補_構成㈣腹f 27而使=二近’ ==:_5的滑—分和‘ 下面對動作進行說明。 圖2(a)、（b)所示為圖！中的臂結構The load torque generated when driving is detected by the 疋 detecting the positive torque applied to the body P. The driving torque is changed, so that the valve opening degree of the state direct-acting valve can be fully closed to the electric motor 3 when the valve opening degree is fully closed or fully open, and the motor is turned on; Body pressing operation. A transmission gear; the fish Chu Μ 胥 琶 琶 琶 琶 琶 琶 琶 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达 马达6e and the electric motor, the second transmission gear; the torque switching by the control drive control unit according to the opening or closing 1336377 26340pif.doc; and the switch control device, when the rotation of the output shaft is restricted, with the first transmission The gear and the load torque corresponding to the load torque transmitted by the second transmission gear act to turn the switch on or off. Therefore, a complicated circuit is not required, and it is possible to detect the load torque of the electric motor 3 or the transmission gear which is generated in the control of the valve opening degree with a simple structure. According to the present invention, the switch control device has a first fixed shaft 8 mounted with a freely rotatable second transfer gear; rotatably mounted on a second fixed shaft as a center of rotation of the third transfer gear; The rotation centered on the second fixed shaft is constituted by an assembly limited by the elastic restoring force; when the rotation of the output shaft is restricted, corresponding to the load torque transmitted through the first transmission gear and the second transmission gear The load deforms the elastomer and rotates with the first fixed shaft centered on the second fixed axis to turn the switch on or off. Therefore, the detection of the load torque can be performed with a simple configuration. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] Embodiment 1 FIG. 1 is a schematic view showing the configuration of an electric control valve according to Embodiment 1 of the present invention. In order to explain the internal structure, a part is shown along a cross section along the axial direction of the output shaft of the electric actuator and the valve shaft connected thereto. 1 is a view showing an electric actuator 1 and a valve main body 12 1336377 26340pif.doc which constitute the electric control valve of the first embodiment, and constitutes a torque detecting device, and the output shaft 4 is rotated by the opening portion. Each ash discharge valve „ +, 疋柃 疋柃 锁定 , , , 锁定 锁定 锁定 锁定 锁定 锁定 锁定 锁定 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动 电动As shown: (5) The shut-off valve is composed of the valve main and the valve shaft 15 inserted through the sliding hole, the block of the fluid passages 18, 19, and the block of the fading. In these blocks, '°.,:' The annular ring 21 and the diaphragm pressing portion 22 are disposed. The upper end of the body is divided into the upper end of the body by the diaphragm and the intermediate shaft 15, and is connected to the output shaft 4 of the electric actuator 1. And the valve body 17 is installed in the second and right sides, and the periphery of the lower end of the valve body ' ' ^ has the valve open when fully closed, the sealing member Ha. The valve shaft 15 is along with the wheel: the male The valve body 17 causes the fluid passage 18 to move up and down, and the air flows. The passage 18 is inserted into the sliding hole 16 of the fluid of the fluid passage 19, The contact = member 23 is made up of a ring ^ shaft = 4 by the brake screw 26 between the main body of the wire = 'sub error by the fixed position of the pair of brake screws 26 at the shaft support member 24 ^ ' I I I I I I I I I I I I I I I I I I I I I I I I I The lower surface of the member 24 and the valve wheel are represented by the complement _ constituting (four) the belly f 27 and the = two near ' ==: _5 slip - and ' the following description of the action. Figure 2 (a), (b) The arm structure shown in Figure!
:靡示為中間開，敗態’圖2(b)所示= 使限制開關接通的狀怨。另外，圖2(a) 二 ^電動致動器i的從支持板5b#j進行觀__，為= 易辨識㈣構造，是柄支持板5b進行觀察，ς μ上的限制開關13是以虛線來表示。另 2板 的結構做適當的說明。 厅不 在閥門達到全閉之前的中間開度狀態下，傳動齒輪部 6d、6e的固定軸8是利用螺旋彈簧u而從兩側進行支 並處於圖2⑻所示的中間位置。此時，後述的驅動控 是以高速、低扭矩做為平常時的驅動扭矩，使閥體17_ 移動。在這種情訂，傳動#輪部6d、6e是依據來自電動 馬達3的旋轉扭矩’關定轴8為中心進行旋轉，並傳送 該扭矩使輸出軸4及_ 15旋轉，並且使閥體i7沿著間 開口部的方向進行移動。 當閥體17移動行進，並落放於閥開口部上而形成全閉 狀態時，閥體Π達到閥軸15的軸方向的移動界限，輸出 車由4的說轉被鎖疋（限制）’且傳動齒輪7、傳動齒輪&、 6b的旋轉也隨著被鎖定。在該狀態下再施加的旋轉扭矩， 16 丄JJUJ// 26340pif.doc 馬達3和傳動齒輪的負載扭矩。當盘該負$ 扭矩對應的負荷達到—定以上時二=負載 傳動，輪帶來過大的負荷。 動馬^3和 動齒=6bHm狀態峡輪出軸4和傳 扭矩施加在傳動齒"’二二過?動#輪“再將旋轉 Φ锌骓δ沾並 從薄、，'°構10沿者圖2(Vk 中二士的則碩號方向，以固定軸％為中心進行旋轅。 此牯’當與負載扭矩相對應的負荷達鈾 8的螺旋彈簧U的恢復力大之—定以上的 旋彈簧11 (沿著圖2(b)中;二的； 如此’與形成全閉狀態且輸出軸4和 的旋轉被鎖定後所施加之一定以上 動回輪硭 荷’可藉自使螺鄉# u變形(㈣而^相對應的負 在本fM月中，_&；； 收細）而破^耗。換言之， 二閉狀態並被鎖定的傳動齒輪或和電 f 载扭矩，可藉由螺旋彈簧u的變形，亦 Ρ錯由/Γ、紋彈黃π的位移而檢測到。 U)^f方傳㈣輪部6d、6e的公轉錢臂結構 10向A方向私動行進時，通過貫通孔5c而 5a上的臂部10c，將限制開關13的開關部…按下。藉此， 八動Γ赌通常的驅動扭矩轉換到更高的驅曰動扭 矩’叮在王閉“下以適當的扭矩進行將閥體”按壓在閥: 靡 为 中间 中间 , , , , ’ ” ” ” ” ” ” ” ” ” ” ” ” ” ” In addition, FIG. 2(a) is an observation of the support plate 5b#j from the support plate 5b#j, which is an easy-to-identify (four) structure, and is observed by the handle support plate 5b, and the limit switch 13 on the ς μ is Indicated by the dotted line. The structure of the other 2 boards is properly explained. The hall is not in the intermediate opening state before the valve is fully closed, and the fixed shaft 8 of the transmission gear portions 6d, 6e is branched from both sides by the coil spring u and is at the intermediate position shown in Fig. 2 (8). At this time, the drive control described later is a drive torque at a high speed and a low torque as usual, and the valve body 17_ is moved. In this case, the transmission #wheel portions 6d, 6e are rotated about the rotation torque 'closing shaft 8 from the electric motor 3, and the torque is transmitted to rotate the output shafts 4 and -15, and the valve body i7 is made. Move in the direction of the opening. When the valve body 17 moves and falls on the valve opening to form a fully closed state, the valve body Π reaches the movement limit of the valve shaft 15 in the axial direction, and the output vehicle is locked (restricted) by the rotation of 4 And the rotation of the transmission gear 7, the transmission gears &, 6b is also locked. The rotational torque applied in this state, 16 丄JJUJ// 26340pif.doc The load torque of the motor 3 and the transmission gear. When the load corresponding to the negative $ torque reaches - more than two, the load is transmitted, and the wheel brings an excessive load. The moving horse ^3 and the moving tooth = 6bHm state of the gorge out of the shaft 4 and the transmission torque is applied to the transmission teeth " 'two two over? moving # wheel" and then the rotating Φ zinc 骓 δ and from the thin, '° 10 In Figure 2 (the second direction of the two-way in Vk, the rotation is centered on the fixed axis %. This 牯' when the load corresponding to the load torque reaches the restoring force of the uranium 8 coil spring U is large The above-mentioned coil spring 11 (along with FIG. 2(b); two; such a 'synchronous return load applied after forming a fully closed state and the rotation of the output shaft 4 and being locked" can be borrowed螺乡# u deformation ((4) and ^ corresponding negative in this fM month, _&;; fine) and break the consumption. In other words, the two closed state and locked gear transmission and electric f load torque, By the deformation of the coil spring u, the error is detected by the displacement of the Γ and 纹 黄 yellow π. U) ^f square transmission (4) when the revolving arm structure 10 of the wheel portions 6d, 6e travels in the A direction The arm portion 10c on the through hole 5c and 5a pushes the switch portion of the limit switch 13 downward. Thereby, the normal driving torque of the eight-way bet is converted to a higher driving torque. Pressing the valve body under the appropriate closing torque at the king's closing
17 1336377 26340pif.doc 另外，在上述說明中，舉 料結構H)㈣錄值例子做為支 =可,並不限定於螺S 明… 初)(b)!會示實施例 的結構示意圖，圖3⑻ ^動控儀之驅動控制部 所示為圖物的錢電路達3的各構成，圖3⑻ 動控制部包括電 ，構成。如圖3(a)所示，1¾驅 路3〇及翻電路^ 8、㈣方向控制電物、振盪 1 步進馬達，t成例1中，做為電動馬達3可利用 或和供給轉且可#由改轉數、供 入來自電湃：政广地改變輪出扭矩。礪磁電路31 :二 用該翻㈣動電源信號而產生碼磁” 4 %艰15唬激勵雷動焉遠）〜 ”乜唬，並利 旋轉方向控制電路2=磁線圈而進行驅動。 ，磁場的旋轉方向之沖產=於規定電動馬達3内的旋 礪磁電路31 。儿亚词出到礪磁電路31〇因 盥f_ 了精由向電動馬達3輪屮邋;匕， ^自知轉方向控制電路 輪出彻㈣，用於產生 方疋轉磁場，而使電動^、的仏就相對應之旋轉方向的 振盪電路30声生;:定需的旋轉方向進行旋轉。 並輪電路、3達3的旋轉數之領率信 3〇的頻率作號 孓碌電路31與來自振盪命攸 使電動馬磁信號輪出到電動馬達 \ J以與該頻率信號如粗— 错此， 而且，振盡電路30如圖應的旋轉數進行旋轉。 (b)所示，具有2個眈 18 1336377 26340pif.doc17 1336377 26340pif.doc In addition, in the above description, the material structure H) (4) recorded value example as a branch = can be, is not limited to the screw S ... ...) (b)! Show the structure of the embodiment, diagram 3(8) ^ The drive control unit of the motion controller shows the structure of the money circuit up to 3 of the figure, and the motion control unit of Fig. 3 (8) includes electricity. As shown in Fig. 3(a), the 13⁄4 drive circuit 3〇 and the flip circuit ^8, (4) direction control electric material, the oscillation 1 stepping motor, t in the example 1, as the electric motor 3 can be utilized or supplied Can be changed from the number of revolutions, supply from the eDonkey: Zheng Guangguang to change the torque. The neodymium circuit 31: two uses the turning (four) dynamic power signal to generate the code magnetic "4% difficult 15 唬 excitation lightning ) far away" ~ 乜唬, and the rotation direction control circuit 2 = magnetic coil to drive. The production of the magnetic field in the direction of rotation = the predetermined gyromagnetic circuit 31 in the electric motor 3.儿亚词出到砺磁电路31〇〇f_ The fine rim is turned to the electric motor 3 匕; 匕, ^ self-knowledge direction control circuit wheel out (four), used to generate the square turn magnetic field, and make the electric ^ The 仏 of the oscillating circuit 30 corresponding to the direction of rotation is alive; the rotation is determined by the required direction of rotation. The frequency of the parallel circuit, the frequency of 3 to 3, the frequency of the 3 〇 作 电路 电路 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 31 In addition, the oscillation circuit 30 rotates as shown in the number of rotations. (b) shown with 2 眈 18 1336377 26340pif.doc
電路33a、33b和開關32，I由B ,,^ . ^ a ，、中’開關32依據限制開關13 的接逍或斷開而切換RC電路33&、说中的其中一個。虹 =為將電。阻電容器仏串聯連接的RC振盡 : 且，Κ电路J：>b為將電阻34b和電容器35b串 的RC振盪電路’以RC電路3如的一 號振盈。 Ισ 實施例1的電動控制閥中，在全開以外的開度下，以 電路说所振盈的頻率信號，使電動馬達3動作。 虽限韻關13為斷開狀態時，開關32選擇Rc電路 將=RC電路33a的與Rc電路]相比高頻率的藤率 信號輸入礦磁電路31。 、丰 礪磁電路31與來自振盈電路30的RC電路33a的頻 率信號同步’減磁信號輸出_動馬達3。藉此、 馬達3/X與來自RC電路33a的解信號相對應的旋 轉數下的扭矩是限制開關13在斷開狀態下^動 閥胚：17所必需之一般驅動扭矩。 當在全閉狀態下限制開關13被臂結構1G接通時，開The circuits 33a, 33b and the switch 32, I are switched by B, , ^. ^ a , , and the middle switch 32 according to the connection or disconnection of the limit switch 13 to switch one of the RC circuits 33 & Rainbow = for electricity. The RC of the resistor capacitor 仏 is connected in series: and the Κ circuit J:>b is the RC oscillator circuit of the resistor 34b and the capacitor 35b in series with the PLL circuit 3. Ισ In the electric control valve of the first embodiment, the electric motor 3 is operated by a frequency signal which is excited by the circuit at an opening degree other than the full opening. When the limit switch 13 is in the off state, the switch 32 selects the Rc circuit to input the high frequency vine rate signal of the RC circuit 33a and the Rc circuit] into the mineral magnetic circuit 31. The magnetic circuit 31 is synchronized with the frequency signal of the RC circuit 33a from the oscillation circuit 30, and the demagnetization signal is outputted to the motor 3. Thereby, the torque at the number of revolutions of the motor 3/X corresponding to the de-signal from the RC circuit 33a is the general drive torque necessary to limit the switch 13 to open the valve blank 17 in the open state. When the limit switch 13 is turned on by the arm structure 1G in the fully closed state, it is turned on.
關32在振盪電路30中將連接從RC電路33a切換到RC 電路〇3b。此時，將來自RC電路现的與rc電路仏相 比低頻的頻率錢駄獅魏31。礙磁電路Μ與 振蘯毛路W❸RC電路33b的頻率信號同步，將 輸出到電動達3。 相對動馬達3以與來自RC電路33b的低頻信號 ^疋π數進行旋轉。在該旋轉數下，較限制開關13 19 /严 1336377 26340pif.doc 處於斷開狀態時的驅動扭矩高之驅動扭矩，是通過齒輪單 元被傳送到輸出軸4,而從全閉狀態進行將閥體17按壓在 閥開口部上的動作。 圖4所示為實施例1的電動控制閥之驅動控制部的另 一結構例。圖4所示的驅動控制部與圖3所示的構成不同， 從電源電路28向礪磁電路31的電流路徑包括與阻抗R1 連接的路徑以及與電阻值為阻抗R1的一半之電阻R2相連 接的路徑，並利用開關32a選擇兩個路徑中的其中一個做 為與竭磁電路31相連接的路徑。 如圖5所示，步進馬達在來自電源電路28的供給電流 值大的情況下，從礪磁電路31產生與電流值相對應的礪磁 信號，形成高輸出扭矩。利用該步進馬達的一般性能，當 限制開關13為斷開狀態時，開關32a是選擇阻抗R1所連 結的路徑，當限制開關13被接通時，開關32a是選擇阻抗 R2所連結的路徑，供應電流給礪磁電路31。 藉此，當限制開關13接通時，提供給礪磁電路31的 電流是通過阻抗R2所連結的路徑，較限制開關13的斷開 狀態增加，並將與該電流值相對應的礦磁信號輸出到電動 馬達3。藉由這樣的構成，也可利用較驅動閥體17所必需 的一般驅動扭矩高的扭矩，從全開狀態進行將閥體17按壓 在閥開口部上的動作。 另外，本發明的驅動控制部並不限定於圖3及圖4所 示的結構，也可採用其他的利用能夠切換電動馬達3的輸 出扭矩的既有技術結構。 20 1336377 26340pif-doc 時，如圖6 (c)所示，通過貫通孔5c而突出於支持板知 的臂結構ίο，將限制開關13的開關部13a按下。藉此， 使則述的驅動控制部從一般驅動扭矩切換到高驅動扭矩。 . 從而，可在全閉狀態下，以適當的扭矩進行將閥體按壓在 - 閥開口部上的操作。 在圖6的例子中，傳動齒輪部、6e的固定軸8兼具 使限制開關13接通或斷開的臂結構，可利用較圖i及圖） • 所示的結構少的空間，構成限制開關的控制機構。 另外，在上述說明中，所示的是傳動齒輪部砧或傳動 齒輪部6cl以及安裝在未繪出輸出軸上的傳動齒輪咬合而 驅動輸出軸的例子，但可藉由利用輸出軸替代圖6中的固 定軸9，以與該輸出軸一起旋轉的方式構成傳動齒輪部 6f、6cl，並設置成使傳動齒輪部6al、6bl與該輸出軸和 傳動齒輪部6f、6cl獨立且自由地旋轉自，從而可以更節 省空間。 • 另外，限制開關的控制機構也可做成以下的結構。 圖7所示為限制開關的控制機構的另一結構，圖7(昀 為從傳動齒輪部6d、6e側進行觀察的圖式，圖7 (b)為 利用（a)中的c — c線而取支持板、傳動齒輪及臂部的剖 面之部分剖面圖，圖7 (c)為從中的c方向進行觀 察的上視圖。在圖7的例子中，限制開關13是設置在支持 板5b上。 ' 如圖7 (b)所示，傳動齒輪部6al是設置成以支持板 3b上所形成的固定軸9為中心而自由地旋轉，並在支持板 1336377 26340pif.doc 5b側同軸地一體形成小徑的傳動齒輪部6bl。傳動齒輪部 6al或傳動齒輪部6bl中的任一個，與未繪出電動馬達旋 轉軸上所安裝的傳動齒輪(與圖1中的傳動齒輪6a相當的 齒輪)咬合，並傳送電動馬達的驅動扭矩。另外，傳動齒輪 部6al、6bl構成第一傳動齒輪。 傳動齒輪部6f是在支持板5b側與小徑的傳動齒輪部 6cl同軸地一體形成，並設置成以固定軸9為中心，使傳 動齒輪部6al、6M獨立且自由地旋轉。傳動齒輪部6f或 傳動齒輪部6cl中的任一個，與未繪出輸出軸上所安裝的 傳動齒輪(與圖1中的傳動齒輪7相當的齒輪)咬合，將電 動馬達的驅動扭矩傳送到輸出軸。另外，傳動齒輪部6f、 6cl構成第三傳動齒輪。 傳動齒輪部6d是在支持板5b侧與小徑的傳動齒輪部 6e同軸地一體形成，並且設置成以固定軸8為中心，使臂 結構10獨立且自由地旋轉。傳動齒輪部6e與傳動齒輪部 6f咬合，將電動馬達的驅動扭矩傳送到輸出軸側。另外， 傳動齒輪部6d、6e構成第二齒輪。 到此為止的結構與圖6相同。 圖7所示的臂結構10是使基部自由旋轉地安裝在固定 軸9上，並沿著臂結構10的長邊方向形成從基部延伸的延 長部10d。圖7 (c)所示，在該延長部10d的左右兩側分 別形成彈簧止動部12，並在彈簧止動部12和固定軸8之 間配置螺旋彈簧11。藉此，在輸出軸及傳動齒輪部6f進 行旋轉期間，延長部l〇d是由螺旋彈簧11從兩側進行支The switch 32 switches the connection from the RC circuit 33a to the RC circuit 〇3b in the oscillating circuit 30. At this time, the frequency from the RC circuit is compared with the rc circuit 仏. The magnetic circuit Μ is synchronized with the frequency signal of the vibrating ridge W RC circuit 33b, and is output to the motor up to 3. The counter motor 3 rotates with a low frequency signal ^ 疋 π from the RC circuit 33b. At this number of rotations, the drive torque at which the drive torque is higher than the limit switch 13 19 / Yan 1336377 26340pif.doc in the open state is transmitted to the output shaft 4 through the gear unit, and the valve body is moved from the fully closed state. 17 is pressed against the valve opening. Fig. 4 is a view showing another configuration example of the drive control unit of the electric control valve of the first embodiment. The drive control unit shown in FIG. 4 is different from the configuration shown in FIG. 3. The current path from the power supply circuit 28 to the neodymium circuit 31 includes a path connected to the impedance R1 and a resistor R2 having a resistance value of half the impedance R1. The path is selected by switch 32a to select one of the two paths as the path to which the demagnetizing circuit 31 is connected. As shown in Fig. 5, when the supply current value from the power supply circuit 28 is large, the stepping motor generates a neodymium signal corresponding to the current value from the neodymium circuit 31 to form a high output torque. With the general performance of the stepping motor, when the limit switch 13 is in the off state, the switch 32a is a path connecting the selection impedance R1. When the limit switch 13 is turned on, the switch 32a is a path connecting the selection impedance R2. The current is supplied to the neodymium circuit 31. Thereby, when the limit switch 13 is turned on, the current supplied to the neodymium circuit 31 is a path connected by the impedance R2, the off state of the limit switch 13 is increased, and the mineral magnetic signal corresponding to the current value is added. Output to the electric motor 3. With such a configuration, the valve body 17 can be pressed against the valve opening portion from the fully open state by using a torque higher than the general driving torque necessary for driving the valve body 17. Further, the drive control unit of the present invention is not limited to the configuration shown in Figs. 3 and 4, and other conventional configurations using the output torque capable of switching the electric motor 3 may be employed. In the case of 20 1336377 26340pif-doc, as shown in Fig. 6(c), the arm structure ίο of the support plate protrudes through the through hole 5c, and the switch portion 13a of the limit switch 13 is pressed. Thereby, the drive control unit described above is switched from the normal drive torque to the high drive torque. Thereby, the operation of pressing the valve body to the valve opening portion with an appropriate torque can be performed in the fully closed state. In the example of Fig. 6, the fixed shaft 8 of the transmission gear portion and 6e also has an arm structure for closing or opening the limit switch 13, and a space smaller than the structure shown in Fig. i and Fig. The control mechanism of the switch. Further, in the above description, an example is shown in which the transmission gear portion anvil or the transmission gear portion 6cl and the transmission gear mounted on the unillustrated output shaft are engaged to drive the output shaft, but the output shaft can be used instead of FIG. The fixed shaft 9 in the middle constitutes the transmission gear portions 6f, 6cl in such a manner as to rotate together with the output shaft, and is disposed such that the transmission gear portions 6a1, 6b1 are independently and freely rotated from the output shaft and the transmission gear portions 6f, 6cl. , which can save more space. • In addition, the control mechanism of the limit switch can also be configured as follows. Fig. 7 is a view showing another configuration of the control mechanism for the limit switch, Fig. 7 (昀 is a view seen from the side of the transmission gear portions 6d, 6e, and Fig. 7(b) is a line taken by the c-c line in (a) A partial cross-sectional view of the cross section of the support plate, the transmission gear, and the arm portion is taken, and Fig. 7(c) is a top view viewed from the c direction. In the example of Fig. 7, the limit switch 13 is disposed on the support plate 5b. As shown in Fig. 7 (b), the transmission gear portion 6a1 is provided to be freely rotatable about the fixed shaft 9 formed on the support plate 3b, and is integrally formed coaxially on the side of the support plate 1336377 26340pif.doc 5b. The small-diameter transmission gear portion 6b1. The transmission gear portion 6al or the transmission gear portion 6b1 is engaged with a transmission gear (a gear corresponding to the transmission gear 6a in Fig. 1) which is not shown on the rotary shaft of the electric motor. And the transmission torque of the electric motor is transmitted. Further, the transmission gear portions 6a1, 6b1 constitute a first transmission gear. The transmission gear portion 6f is integrally formed coaxially with the small-diameter transmission gear portion 6cl on the side of the support plate 5b, and is provided to The fixed shaft 9 is centered, so that the transmission gear portion 6al, 6M Rotating vertically and freely. Any one of the transmission gear portion 6f or the transmission gear portion 6cl is engaged with a transmission gear (a gear corresponding to the transmission gear 7 in FIG. 1) that is not depicted on the output shaft, and the electric motor is The drive torque is transmitted to the output shaft. Further, the transmission gear portions 6f, 6cl constitute a third transmission gear. The transmission gear portion 6d is integrally formed coaxially with the small-diameter transmission gear portion 6e on the side of the support plate 5b, and is set to be fixed The shaft 8 is centered, and the arm structure 10 is independently and freely rotated. The transmission gear portion 6e is engaged with the transmission gear portion 6f to transmit the driving torque of the electric motor to the output shaft side. Further, the transmission gear portions 6d, 6e constitute the second gear. The structure up to this point is the same as that of Fig. 6. The arm structure 10 shown in Fig. 7 is such that the base portion is rotatably attached to the fixed shaft 9, and an extension portion 10d extending from the base portion is formed along the longitudinal direction of the arm structure 10. As shown in Fig. 7(c), spring stoppers 12 are formed on the left and right sides of the extension portion 10d, and a coil spring 11 is disposed between the spring stopper portion 12 and the fixed shaft 8. Thereby, the output shaft is And transmission gear During the rotation of the intake line 6f, l〇d extension portion is branched from both sides by the coil spring 11
24 1336377 26340pif.doc 持 賀結構1〇是停止於中間位置。 此外’如圖7 (a)所示，在臂部1〇的另㈣Μ 形成的接觸部l〇e的兩彳日,丨υ的另一鈿。卩上所 使接觸部lGe隨著和lj配置有限制開關13。藉此，24 1336377 26340pif.doc The structure of the structure is stopped at the middle position. Further, as shown in Fig. 7 (a), the other side of the contact portion l〇e formed by the other (four) 臂 of the arm portion 1〇 is another one. The contact portion lGe is disposed on the crucible with the limit switch 13 along with the lj. With this,
關部13a按下。°冓10的釭轉而將限制開關13的開 接著對動作進行說明。 輪部6al —起旋輕的檀^肢的驅雜矩，並㈣與傳動齒 …然後，傳送到動皆^輪部6Μ而傳送到傳動齒輪部 的俜勤告^ 動輪部6d的驅動扭矩，通過一起轉 ^動絲部&，而傳送到傳動齒輪料，使輸出軸進行 閉狀移動在進行，並且落放在閥開 口部上而成為全 Π ·广’㈣達到移動界限而鎖定住輸*㈣旋轉，且 ί從I果使傳動齒輪部6f、6cl的旋轉被鎖定。然後，當 =电動馬達對傳動齒輪部奸、仏丨施加旋轉扭矩時，臂 、，口 才1 〇 AA ^ 旋彈芝 ^長°卩1〇dU與該旋轉扭矩成比例的負載，使螺 疋貫11產生形變，且臂結構10以固定軸9為中心進行 使傳動齒輪部6d、6e圍繞傳動齒輪部6f的周圍進 行公轉。 ^ 田臂結構10隨傳動齒輪部6d、6e的公轉而使移動進 :進時’如圖7 (b)所示，臂結構10的接處部i〇e將限 ^開關13的開關部13a按下。藉此，使前述的驅動控制部 ^般驅動扭矩切換到高驅動扭矩。從而，可在全閉狀態 25 .*·,為夕 1336377 26340pif.doc Λ A在全閉狀態下，閥轴1 5到達移動界限且輸出軸 -於二，又到限制時，對電動馬達3所傳送的驅動扭矩進 二::二Γ做為負载扭矩。因此’能夠防止在直動閥的全 閉代大扭矩的負載施加在闕冑]7上，更可以確實地 防止内部洩漏所必需的閥體的按壓操作。 另外，根據實施例1，電動致動器】包括·· 軸齒輪6a，其㈣傳送電動馬達3的驅動^ 6磁土、.〜專動回TB9〇P6d及同釉—體形成的傳動齒輪部 二輪邻5二傳動齒輪’其由與傳動齒輪部6e咬合的傳 所進行的扭矩切換.辟㈣1Λ」卿而控制㈣㈣部 限制時，按昭盥通，其在輸出軸4的旋轉受到 送的負載扭矩相對摩之負=6,及傳動齒輪6d;6e所傳 =的=時=複雜的電路，能夠以簡易結構對在 載扭矩進行檢測，以切馬達3或傳動齒輪的負 齒輪，並且可自由旋6d、6e所構成的弟二傳動 動齒輪部6f、6C1)所;傳動齒輪部6b ' 6e (或傳 軸％(或固定轴…上，，之，三傳動齒輪旋轉中心的固定 亚且是由以固定軸9b(或固定軸9) 27 ^36377 26340pif.doc 為t心的碇轉是由螺旋彈簧η 成；在輸出軸4的旋轉受到限制時，'二所構 輪和第二傳動齒輪所傳送的負 對之:：傳= 旋彈簧η產生形變，並與固 4應之負载，使螺 固定轴9)為中心進行旋# =固疋轴9b (或 所以另:利用簡一實 時，進例子是當閥成為全閉狀態 二、下被接通之料ls對向設置的 ;;= 接通Π，：：或斷開，切換電動二= 側相對向的方;:= = =:巧閉側和全開 軸中《度的i定 控制。接觸部服的位置進行檢測，以進行扭矩 限定發較佳實施例揭露如上’然其並非用以 和範圍内，當可作=此=，在不脫離本發明之精神 苑圍者^ ΐ更動與潤飾，因此本發明之保護 請專糊所勵為準。 意圖圖1所示為本發明的實施例1之電動控制閥的結構示 圖2為用於說明圖！中的臂結構的動作之示意圖。The closing portion 13a is pressed. The rotation of the 冓 10 turns on the opening of the limit switch 13 and the operation will be described. The wheel portion 6a1 is used to drive the motives of the light-duty sandal limbs, and (4) and the transmission teeth are then transmitted to the moving gears 6Μ and transmitted to the driving torque of the sprinting gear portion 6d of the transmission gear portion, By rotating the wire portion & and transferring it to the transmission gear material, the output shaft is moved in a closed state, and it is placed on the valve opening portion to become a full-width (wide) (four) to reach the movement limit and lock the transmission. * (4) Rotation, and ί causes the rotation of the transmission gear portions 6f, 6c to be locked. Then, when the electric motor applies a rotational torque to the transmission gear, the arm, the mouth is only 1 〇 AA ^ 弹 芝 芝 ^ 长 卩 〇 〇 U U U 与 与 与 与 与 与 与 与 与 与 与 与The deformation is generated, and the arm structure 10 is rotated around the fixed shaft 9 so that the transmission gear portions 6d, 6e revolve around the periphery of the transmission gear portion 6f. ^ The field arm structure 10 is moved in with the revolution of the transmission gear portions 6d, 6e: as shown in Fig. 7 (b), the joint portion i 〇 e of the arm structure 10 will limit the switch portion 13a of the switch 13 Press. Thereby, the above-described drive control unit is switched to the high drive torque. Therefore, in the fully closed state 25 .*·, in the fully closed state, the valve shaft 15 reaches the moving limit and the output shaft is in the second, and when the limit is reached, the electric motor 3 is The transmitted drive torque is in two:: two as the load torque. Therefore, it is possible to prevent the full-closed load of the direct-acting valve from being applied to the 阙胄7, and it is possible to surely prevent the pressing operation of the valve body necessary for the internal leakage. Further, according to the first embodiment, the electric actuator includes a shaft gear 6a, which (4) transmits the drive of the electric motor 3, the magnetic body, the TB9〇P6d, and the transmission gear portion formed by the same glaze. The adjacent 5 second transmission gear 'the torque is switched by the transmission engaged with the transmission gear portion 6e. When the (four) 1 Λ 卿 卿 控制 控制 控制 控制 控制 四 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 , , , , , , , , , , , , , , , , , , , , , Relative friction = 6 and transmission gear 6d; 6e = = = complex circuit, can detect the load torque with a simple structure to cut the motor 3 or the negative gear of the transmission gear, and can be freely rotated 6d, 6e constitute the second transmission gear part 6f, 6C1); the transmission gear part 6b ' 6e (or the transmission axis % (or fixed axis ..., the three transmission gear rotation center of the fixed sub- The twist of the fixed shaft 9b (or fixed shaft 9) 27 ^ 36377 26340pif.doc is formed by the coil spring η; when the rotation of the output shaft 4 is restricted, the 'two construction wheel and the second transmission gear The negative of the transmission:: pass = the spring η produces deformation, and the load of the solid 4 should be The fixed shaft 9) is centered on the rotation #=固疋 axis 9b (or so another: using the simple one real time, the example is when the valve becomes fully closed state 2, the lower material is connected to the opposite direction of the material ls;; = Wanted, :: or disconnected, switch electric two = side opposite side;: = = =: in the closed side and full open axis "degree of i control. The position of the contact part is tested for torque limitation The preferred embodiment disclosed above is not intended to be used in the scope of the present invention, and may be modified and retouched without departing from the spirit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an electric control valve according to a first embodiment of the present invention. Fig. 2 is a view for explaining the operation of the arm structure in Fig.
S 28 1336377 26340pif.doc 圖3所示為實施例1的電動控制閥之驅動控制部的結 構示意圖。 圖4所示為驅動控制部的另一結構例示意圖。 圖5所示為與步進馬達的驅動電流值相對應之輸出扭 矩和旋轉數的關係的曲線圖。 圖6所示為限制開關的控制機構的另一結構示意圖。 圖7所示為限制開關的控制機構的另一結構示意。 【主要元件符號說明】 1 :電動致動器 2 :閥主體 3 :電動馬達 4 :輸出軸 5a、5b :支持板 5c :貫通孔 6a、7 :傳動齒輪 6al、6bl、6b、6c、6cl、6d、6e、6f :傳動齒輪部 8 :固定轴 9a :旋轉軸 9、9b :固定車由 10 .臂結構 10a :基部 l〇b :梁部 10c :臂部 10d :延長部S 28 1336377 26340pif.doc Fig. 3 is a view showing the configuration of the drive control unit of the electric control valve of the first embodiment. Fig. 4 is a view showing another example of the configuration of the drive control unit. Fig. 5 is a graph showing the relationship between the output torque and the number of revolutions corresponding to the drive current value of the stepping motor. Fig. 6 is a schematic view showing another structure of the control mechanism for the limit switch. Fig. 7 shows another structural schematic of the control mechanism of the limit switch. [Description of main components] 1 : Electric actuator 2 : Valve main body 3 : Electric motor 4 : Output shafts 5 a and 5 b : Support plate 5 c : Through holes 6 a , 7 : Transmission gears 6 a , 6 b , 6 b , 6 c , 6 c1 6d, 6e, 6f: transmission gear portion 8: fixed shaft 9a: rotary shaft 9, 9b: fixed vehicle 10; arm structure 10a: base lb: beam portion 10c: arm portion 10d: extension
29 1336377 26340pif.doc 10e :接觸部 11 :螺旋彈簧 12 :彈簧止動部 13 :限制開關 13a :開關部 14 :滾珠軸承 15 :閥軸 16 :滑動孔 17 :閥體 17a:密封構件 17b :座圈 18、19 :流體通路 20 :隔膜 21 :墊圈 22 :隔膜按壓部 23 :密封構件 24 :軸支持構件 25 : Ο型環 26 :制動螺絲 27 :蛇腹管 28 :電源電路 29 :旋轉方向控制電路 30 :振盪電路 31 :礪磁電路 30 1336377 26340pif.doc 32、32a :開關 33a、33b : RC 電路 34a、34b :阻抗 35a、35b :電容器 R1、R2 :阻抗29 1336377 26340pif.doc 10e : Contact portion 11 : Coil spring 12 : Spring stopper 13 : Limit switch 13 a : Switch portion 14 : Ball bearing 15 : Valve shaft 16 : Sliding hole 17 : Valve body 17 a : Sealing member 17 b : Block Ring 18, 19: fluid passage 20: diaphragm 21: washer 22: diaphragm pressing portion 23: sealing member 24: shaft support member 25: Ο-ring 26: brake screw 27: bellows 28: power supply circuit 29: rotation direction control circuit 30: oscillation circuit 31: neodymium circuit 30 1336377 26340pif.doc 32, 32a: switches 33a, 33b: RC circuits 34a, 34b: impedances 35a, 35b: capacitors R1, R2: impedance