200409156 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於電力用斷路器，尤其是關於適合變電所 等高電壓規格的電力用斷路器。 【先前技術】 由於電力需要的增大，對於電力用斷路器高速及小型 輕量化的需求提高。而爲了滿足此一需求在電力用斷路器 的操作裝置上，考慮維修性、噪音、震動及安全性時多使 用彈簧的驅動手段。使用該習知彈簧的斷路器的操作裝置 的例如日本專利特開平9- 1 06742號公報所記載。該公報 記載的操作裝置，在投入動作時將投入的彈力經由凸輪與 主槓桿傳達斷路彈簧側，一邊壓縮斷路彈簧關閉接點。並 且以電動機與減速機構壓縮投入彈簧。減速機構賦予棘輪 軸電動機的動力，安裝在棘輪軸上的驅動爪可轉動設置在 與凸輪同軸上的棘輪。並且除了驅動爪另外設置防止棘輪 逆轉的複數個爪。 另外，特開平200 1 -2 1 0 1 96號公報中，爲了使斷路器 的操作裝置確實動作，操作裝置是以斷路彈簧放勢予以斷 路，藉投入彈簧的放勢利用可轉動驅動的蓄勢軸進行投入 動作。並且斷路彈簧是以投如彈簧的放勢加以蓄勢，投入 彈簧藉著電動蓄勢機構轉動蓄勢軸加以蓄勢。在蓄勢軸上 安裝具有缺齒部的大齒輪，將小齒輪咬合在該大齒輪上。 上述特開平9- 1 06742號公報記載是當投入動作中止 -5- (2) (2)200409156 時凸輪從主槓桿分離’卡合主槓桿與斷路控制部的槓桿保 持斷路彈簧，具備其次的斷路動作。凸輪與棘輪藉著慣性 力轉動超過死點，再壓縮投入彈簧與慣性力平衡時停止。 隨後，藉著蓄勢在投入彈簧的動能使凸輪與棘輪朝著相反 方向轉動。 但是，該習知例中，由於驅動爪或逆轉防止的爪與棘 輪的輪齒卡合不會產生逆轉。並且。複數形成逆轉防止用 爪的該等複數個爪並不能分散吸收能源，而會有因負載的 分布使爪折損之虞。因此，必須同時考慮衝擊力設置棘 輪，會有零件大型化操作器整體小型化的困難。 另外，特開200 1 -2 1 0 1 96號公報記載的是投入動作中 止之後捲繞投入彈簧，防止捲繞中止時對爪或搭扣等零件 產生過大負載。但是，此一公報記載的是投入動作時產生 的衝擊性負載對於棘輪會有極大的影響，其結果對於棘輪 大型化的點並未作充分的考慮。 本發明是有鑑於上述習知技術所硏創而成，其目的是 降低電力用斷路器投入時可能產生的衝擊力。本發明的其 他目的是使斷路器整體小型化的同時，可提高可靠度。並 且’本發明是以達成上述所有任一的效果爲目的。 【發明內容】 爲了達成上述目的的本發明的特徵是利用投入彈簧與 斷路彈簧的彈力切換電力的投入與斷路的電力用斷路器 中’設置使投入彈簧伸縮的投入彈簧連桿與安裝在該投入 -6 - (3) 200409156 彈簧連桿的棘輪及咬合該棘輪的驅動爪，棘輪是形成圓的 部份缺口形狀。200409156 (1) 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a circuit breaker for electric power, and more particularly to a circuit breaker for electric power suitable for high voltage specifications such as a substation. [Prior Art] As power requirements increase, the demand for high-speed, compact, and lightweight power circuit breakers has increased. In order to meet this demand, the operation device of the power circuit breaker often uses a spring driving method when considering maintainability, noise, vibration and safety. An operating device for a circuit breaker using this conventional spring is described in, for example, Japanese Patent Laid-Open No. 9-1 06742. In the operating device described in the publication, the input spring force is transmitted to the disconnect spring side via the cam and the main lever during the input operation, and the disconnect spring close contact is compressed. The spring is compressed by a motor and a reduction mechanism. The deceleration mechanism gives power to the ratchet shaft motor, and the driving claw mounted on the ratchet shaft can rotate a ratchet provided on the same axis as the cam. In addition to the driving claws, a plurality of claws are provided to prevent reverse rotation of the ratchet. In addition, in Japanese Unexamined Patent Publication No. 200 1 -2 1 0 1 96, in order to make the operating device of the circuit breaker operate reliably, the operating device is interrupted by the release of the release spring. The axis is put into operation. In addition, the cut-off spring is stored by the release of a spring, and the loaded spring is stored by rotating the storage shaft by an electric storage mechanism. A large gear having a missing tooth portion is mounted on the potential storage shaft, and a small gear is engaged with the large gear. The above-mentioned Japanese Patent Application Laid-Open No. 9-1 06742 describes that the cam is disconnected from the main lever when the operation is suspended -5- (2) (2) 200409156. The main lever and the lever of the disconnection control unit hold the disconnection spring and have a second disconnection action. The cam and the ratchet rotate by the inertia force beyond the dead point, and then compress the input spring and stop when the inertia force is balanced. Then, the cam and the ratchet wheel are rotated in opposite directions by accumulating the kinetic energy of the input spring. However, in this conventional example, the engagement of the driving pawl or the pawl preventing pawl with the teeth of the ratchet does not cause a reversal. and. The plurality of claws forming a plurality of claws for preventing reversal do not disperse and absorb energy, and may cause the claws to be broken due to the load distribution. Therefore, it is necessary to install the ratchet in consideration of the impact force at the same time, and it is difficult to reduce the overall size of the manipulator with a large part. In addition, Japanese Patent Application Laid-Open No. 200 1 -2 1 0 1 96 describes that the input spring is wound after the interruption of the input operation to prevent an excessive load from being applied to parts such as claws or buckles when the interruption of the input operation. However, this publication describes that the impact load generated during the input operation has a great influence on the ratchet, and as a result, the point that the ratchet becomes larger has not been sufficiently considered. The present invention has been made in view of the above-mentioned conventional technology, and an object thereof is to reduce an impact force that may be generated when a circuit breaker for electric power is applied. Another object of the present invention is to improve the reliability while miniaturizing the circuit breaker as a whole. Furthermore, the present invention aims to achieve all the effects described above. [Summary of the Invention] To achieve the above object, the present invention is characterized in that an electric power circuit breaker for switching electric power input and interruption by using the elastic force of the input spring and the disconnection spring is provided with an input spring link that expands and retracts the input spring and is mounted on the input. -6-(3) 200409156 The ratchet of the spring link and the driving pawl that engages the ratchet. The ratchet is formed as a round part of a notch.
並且，該特徵中，棘輪外圍部除了缺口部及與該缺口 部相鄰部份之外，以形成複數個輪齒爲佳，更以電力投入 時解除棘輪與驅動爪的咬合，棘輪的缺口部驅動爪經過後 後可咬合設置在棘輪外圍的輪齒爲佳。另外，缺口部也可 以形成切頭圓形，或形成多角，或以曲線切斷圓的形狀， 缺口部也可以中心角度形成大約6 0度 爲了達成上述目的用的本發明其他特徵，具備：開關 具有固定接觸件與可動接觸件的接點切換電力的斷路與投 入的斷路部；藉應變能的放勢開關接點的斷路構件及投入 構件；投入構件內儲存應變能的棘輪；及將動力傳達至上 述棘輪的驅動爪所構成的電力用斷路器中，棘輪外圍面具 有與驅動爪卡合的複數個輪齒的輪齒部；及具有未形成該 輪齒的缺口部，投入動作時驅動爪抵接棘輪的缺口部。In addition, in this feature, in addition to the notch portion and a portion adjacent to the notch portion, it is preferable to form a plurality of gear teeth. The ratchet and the driving pawl are released when the electric power is input. After the driving claw passes, it is better to engage the teeth set on the periphery of the ratchet. In addition, the cutout portion may be formed in the shape of a cut-out circle, or formed in a polygonal shape, or cut in a circle with a curve. The cutout portion may also be formed at a central angle of about 60 degrees. In order to achieve the above object, other features of the invention include: The contact points of the fixed contact and the movable contact are used to switch the circuit breaker between the electric power and the input circuit breaker; the circuit breaker member and the input member by the release switch contact of strain energy; the ratchet wheel that stores the strain energy in the input member; and transmits the power In the power circuit breaker constituted by the driving pawl of the ratchet wheel, the outer surface of the ratchet wheel has a gear tooth portion engaging a plurality of gear teeth with the driving pawl; and a notch portion where the gear tooth is not formed; Butt against the notch of the ratchet.
並且，該特徵中，將儲存投入構件的應變能放勢的同 時，在斷路構件設置蓄勢應變能的凸輪及主槓桿，以驅動 爪從棘輪的缺口部抵接圓周圍面時，在棘輪使其跳起後停 止棘輪的擺動抵接輪齒部爲佳。並且，棘輪的缺口部也可 以連結棘輪外圍上2點的直線切斷的缺口形狀，或連結圓 周圍上的2點曲線切斷的形狀。並且’以設置安裝棘輪與 凸輪雙方的凸輪軸爲佳。 【實施方式】 -7- (4) (4)200409156 參閱圖示說明本發明之一實施例如下。 第1圖爲本發明斷路器之一實施例的模式圖，表示投 入狀態圖。本實施例的斷路器，具備：有主軸4的斷路控 制部，及以突輪軸2爲中心的投入控制部、一端部卡合主 軸4的斷路彈簧、具有安裝在突輪軸2的棘輪5 2的投入 彈簧部及、投入或切斷電力的接點部。並且，將設於斷路 彈簧部的斷路彈簧的彈力放勢切斷電力，將投入彈簧部的 彈力放勢後投入電力。斷路彈簧藉著投入彈簧的放勢加以 蓄勢，投入彈簧藉著驅動爪的驅動馬達蓄勢。 接點部一端部安裝在主軸4，另外端部形成可動接點 的可動接觸件3 2、該可動接觸件3 2的可動端接觸的固定 接點29b及形成可動接觸件的迴轉端子的固定接點29a。 斷路彈簧部在主軸4安裝第2主槓桿5 b。第2主槓 桿5b的另外端部安裝有斷路彈簧連桿23，主軸4迴轉時 使斷路彈簧連桿2 5上下動作。斷路彈簧連桿2 5的下部形 成中空，設置在中空部的支撐上嵌合活塞36。活塞下部 連接緩衝器3 7。該緩衝器3 7內部塡充非壓縮流體，例如 油。斷路彈簧連桿2 5的下端形成突緣，以此突緣作爲停 止器在斷路彈簧連桿2 5的外圍捲繞斷路彈簧（斷路構 件）26。斷路彈簧的上端爲框體1所按壓。並且，緩衝器 3 7的內部流體當斷路彈簧連桿2 5與活塞衝突時壓力上升 產生制動能。該制動能是作爲順利停止可動接觸件3 2支 用。 斷路控制部在主軸4安裝第1主槓桿5 a。第1主槓 -8 - (5) (5)200409156 桿5 a是形成迴力鏢形狀，主軸4貫穿中央部，一端部安 裝輥6 ’另一端部安裝另外的輕7。輕6與後述的突輪3 外圍面接觸時可傳達來自突輪3的負載。第1的主槓桿 5 a的輥7與第2斷路栓鎖搭扣8形成可彼此卡合。第2 斷路栓鎖搭扣8的一端側是安裝在轉軸，另外端側可配置 可卡合輥7。 第2斷路栓鎖搭扣8的中間部安裝可卡合斷路栓鎖搭 扣1 1用的輥，同時安裝有復位彈簧9。配置可卡合斷路 栓鎖搭扣1 1前端部的斷路扳機1 4 a。雖然形成可自由迴 轉的斷路栓鎖搭扣1 1及斷路扳機1 4 a，但是藉著復位彈 簧1 2、1 5限制其動作。斷路扳機i 4 a的轉軸同樣安裝有 斷路扳機1 4b，配置抵接該斷路扳機1 4b的螺線管的柱塞 1 7。設於斷路栓鎖搭扣1 1、第2斷路栓鎖搭扣8及斷路 扳機1 4a的復位彈簧9、1 2、1 5形成彈力可經常作用的狀 態。復位彈簧9爲壓縮螺旋彈簧，復位彈簧1 2、1 5爲扭 簧。以上爲斷路控制部。 投入彈簧中，將外圍部形成複數輪齒的棘輪5 2安裝 在突輪軸5 2上。棘輪5 2安裝偏心投入彈簧連桿2 7的一 端部。該投入彈簧連桿27的另外端部連接在彈簧承體3 5 上。將投入彈簧2 8定位在投入彈簧連桿2 7的周圍。投入 彈簧（投入構件）28的一端以彈簧承體35，另外端以框體1 保持。棘輪5 2的輪齒上咬合安裝在輪齒軸5 6的驅動爪 54 °驅動爪54的動作爲安裝於輪齒軸56的復位彈簧55 所限制。並且，輪齒軸5 6同時安裝有小齒輪5 1。 -9 - (6) (6)200409156 突輪軸5 6安裝有突輪3，在突輪3的一部份安裝輥 1 8。配置可卡合該輥1 8的投入栓鎖搭扣1 9。投入栓鎖搭 扣1 9形成可以在捲繞復位彈簧20的軸周圍迴轉。配置可 卡合設置在投入栓鎖搭扣1 9中間部的輥上的投入扳機 22。投入扳機22是形成T字型，橫棒與縱棒的交叉部分 形成轉軸。該轉軸上捲繞復位彈簧23。配置可接觸投入 扳機2 2的螺線管的柱塞2 4。 使用第1圖的投入狀態圖、第2圖的斷路狀態圖、第 3圖的投入狀態的瞬間圖、第4圖的投入中止狀態圖說明 以上構成電力用斷路器的操作裝置的動作如下。第1圖 中，斷路彈簧26與投入彈簧28雙方爲壓縮螺旋彈簧，雙 方同時形成壓縮狀態。 該第1圖的狀態中，輸入斷路指令時讓斷路螺線管激 磁。使斷路螺線管的柱塞1 7突出第1圖中的右側，按壓 斷路扳機14b。斷路扳機14b超過復位彈簧15的彈力使 斷路扳機1 4朝著逆時鐘方向迴轉。藉此，解除與斷路扳 機1 4b同軸形成的斷路扳機丨4a與斷路栓鎖搭扣1 1間的 卡合。 從斷路扳機1 4a開放形成可自由迴轉的斷路栓鎖搭扣 1 1 °斷路栓鎖搭扣1 1 一旦可自由迴轉時，同樣形成第2 斷路栓鎖搭扣8的自由迴轉。其中，第2斷路栓鎖搭扣只 從下方以主槓桿5 a的輥7按壓，因此可藉著主槓桿5 a的 動作朝著逆時鐘方向迴轉。並且，復位彈簧9爲壓縮螺旋 彈賛，具有妨礙此一動作的作用。當限制來自上方主槓桿 - 10- (7) (7)200409156 5 a動作的斷路栓鎖搭扣1 1的按壓力消失時，第2斷路栓 鎖搭扣8形成可自由迴轉而朝著逆時鐘方向迴轉。並且當 限制斷路彈簧2 6朝著下方動作的斷路栓鎖搭扣8的按壓 力消失時，斷路彈簧2 6開放其彈力，將斷路彈簧連桿2 5 向下方按壓。此時，斷路彈簧26形成全行程狀態，使斷 路彈簧連桿25按壓緩衝器37的活塞36。 斷路彈簧連桿25項下方移動使主槓桿5b朝著逆時鐘 方向迴轉，隨著使主槓桿5 a同樣朝著逆時鐘方向迴轉。 主槓桿5 a的端部的輥6接近相鄰的凸輪3爲止，持續地 迴轉主槓桿5 a。主軸4 一旦逆時鐘方向迴轉時，連接其 上的可動接觸件32向下方移動，開啓接點29a、29b間。 此一斷路動作中止的狀態如第2圖所示。 從第2圖表示的斷路狀態，說明移至第1圖表示投入 狀態的投入動作如下。使投入螺線管激磁。投入螺線管的 柱塞2 4朝著圖的左方突出，按壓形成T字型的投入扳機 2 2的一端。按壓後的投入扳機2 2大於復位彈簧2 3的彈 力使投入扳機2 2的轉軸朝著逆時鐘方向迴轉。使投入扳 機22迴轉時藉復位彈簧20的彈力，使投入栓鎖搭扣} 9 朝著逆時鐘方向迴轉。 但是，偏心安裝在棘輪52的投入彈簧連桿27藉著棘 輪5 2的迴轉到達位在最高位置的上死點附近爲止。這是 利用從驅動爪5 4未圖示的電動機傳達至小齒輪5 1的轉動 力加以驅動達成。投入栓鎖搭扣1 9朝著逆時鐘方向迴 轉，使凸輪3的動作限制脫離。其結果，在安裝凸輪3的 -11 - (8) (8)200409156 凸輪軸2上，僅投入彈簧2 8的彈力作用。一旦投入彈簧 28的彈力，使投入彈簧連桿27向下方移動。移動投入彈 簧連桿27時，棘輪52與安裝其上的凸輪軸2朝著逆時鐘 方向迴轉。 利用凸輪軸2的迴轉使凸輪3迴轉，接觸凸輪的主槓 桿5 a的輥6作爲從動輥隨著凸輪曲線移動。藉此，使主 字貝桿5 a順時鐘方向迴轉。以第3圖表示該狀態。 進行投入動作使凸輪3逆時鐘方向進行大致半個轉動 時’以凸輪3的最大半徑位置接觸主槓桿5的輥6與凸輪 3。此一接觸時，安裝主槓桿5 a及安裝該主槓桿5 a的主 軸4朝6 0度左右順時鐘方向迴轉，連接主槓桿5 b的斷路 彈簧連桿2 5壓縮斷路彈簧2 6。主軸4 一旦迴轉時，接點 2 9a、2 9b藉著可動接觸件32關閉。 來自作用於第2斷路栓鎖搭扣8的主槓桿5 a的輥7 的按壓力因設於輥7附近構件的凸輪作用而減少。因此， 第2斷路栓鎖搭扣8以開放復位彈簧9的力順時鐘方向迴 轉，回到原來位置。同樣地，斷路栓鎖搭扣1 1藉著復位 彈簧1 2的恢復力恢復原來的位置，斷路扳機丨4是利用復 位彈簧1 5的恢復力恢復到原來的位置。 第4圖表不開放投入彈簧2 8 ’更加以轉動棘輪的狀 態。由於凸輪3從主槓桿5 a分離，主槓桿5 a藉著壓縮後 的斷路彈簧2 6的彈力逆時鐘方向迴轉。如上述使斷路栓 鎖搭扣1 1、第2斷路栓鎖搭扣8及斷路扳機1 4恢復到原 來的位置，因此將主槓桿5 a的輥7與第2斷路栓鎖搭扣 -12- (9) (9)200409156 8卡合，保持斷路彈力，維持斷路器的投入狀態。 凸輪3從主槓桿5離開後仍解放投入彈簧2 8，因此 持續著逆時鐘方向的迴轉。並且，凸輪3藉慣性力超過下 死點，開始壓縮投入彈簧2 8。在凸輪3的慣性力與壓縮 後的投入彈簧2 8的彈力達到平衡時停止凸輪3。凸輪3 停止後仍壓縮的投入彈簧2 8解放其彈力時，使凸輪3順 時鐘方向轉動。隨後，凸輪3以下死點爲中心一邊擺動而 停止。 但是，投入動作中與凸輪3同軸上的棘輪5 2同樣逆 時鐘方向轉動。在該棘輪5 2的圓周1 /4左右形成切成切 頭圓形的缺口部。並且，與缺口部相鄰的棘輪5 2的外圍 部1 /6左右雖呈圓形但未形成輪齒。第2圖的狀態中，驅 動爪5 4雖然咬合在該棘輪5 2的輪齒上，但是隨著棘輪 5 2的迴轉使驅動爪5 4脫離與輪齒的咬合，移動缺口部或 圓周面。 例如，停止未圖示電動機的驅動爪5 4驅動的第2圖 的狀態中，棘輪5 2以投入彈簧2 8的彈力逆時鐘方向迴 轉。隨著使棘輪5 2的輪齒與驅動爪5 2間的栓鎖搭扣咬合 脫離。將驅動爪5 4利用棘輪5 2的輪齒上推至棘輪5 2的 最大半徑位置爲止時，隨後以復位彈簧5 5的彈力逆時鐘 方向使驅動爪5 4迴轉。並且棘輪的迴轉一旦前進時，超 過棘輪5 2的平滑圓周部，抵接缺口部。 驅動爪5 4超過缺口部時，如第3圖所示從棘輪5 2的 角部使驅動爪5 4跳起。隨後棘輪5 2如上述，挾持下死點 -13- (10) 200409156 擺動，最後停止。利用缺口部的角部跳動的驅動爪 著復位彈簧5 5的彈力朝逆時鐘方向迴轉，抵接棘車 輪齒。 投入動作中止時，啓動未圖示的電動機逆時鐘 動小齒輪5 1。藉此，逆時鐘方向迴轉爪軸5 6，2 驅動爪5 4的一側，一邊與棘輪5 2的輪齒栓鎖搭扣 使棘輪5 2逆時鐘方向迴轉。棘輪5 2 —旦逆時鐘方 時’投入彈簧連桿27項上方移動，壓縮投入彈簧 迴轉安裝在凸輪軸上的凸輪3時，停止電動機。此 投入彈簧28的彈力時，分別將凸輪3的輥丨8卡合 桿1 9，將投入槓桿1 9卡合投入扳機22，因此可保 彈簧的力。即，將投入彈簧2 8維持在壓縮的狀 且，一旦停止電動機時，使驅動爪5 4接觸棘輪5 2 輪齒的圓周部分，電動機的能量不會傳達投入栓 1 9。此一狀態如第1圖表示。 根據本實施例，棘輪5 2停止時驅動爪抵接棘 此衝突後瞬間的衝擊小，卡合穩定，提高可靠度。 可形成驅動爪或棘輪的小巧及輕量化，實現斷路器 小巧及輕量化。 此外本實施例中，斷路彈簧及投入彈簧雖是使 螺旋彈簧，但是也可以使用其他彈性體元件，例如 簧、螺旋彈簧、板彈簧。並且，爲了簡化，主槓桿 上下移動可動接觸件的構造，但是在主槓桿與可動 之間可具備使可動接觸件的行程長度增幅的槓桿或 54藉 I 52的 方向驅 個設置 咬合， 向迴轉 28 〇半 時解放 投入槓 持投入 態。並 不具有 鎖搭扣 輪，因 並且， 整體的 用壓縮 盤形彈 形成可 接觸件 連桿。 -14 - (11) 200409156 並且，本實施例中，以驅動爪跳起的瞬間作爲凸輪3從主 槓桿5 a離開的瞬間，但是兩者也可以在完全分離後。 另外，本實施例中對於設置在投入栓鎖搭扣及投入扳 機的復位彈簧經常性施以彈性，以該等復位彈簧作爲扭 簧，但是也可以其他的彈性體元件。Furthermore, in this feature, when the strain energy stored in the input member is released, a cam and a main lever for storing the strain energy are provided in the disconnecting member to drive the pawl from the notch portion of the ratchet to the peripheral surface of the circle. After jumping, it is better to stop the ratchet from abutting against the gear teeth. In addition, the notch portion of the ratchet may have a notch shape cut by a straight line connecting two points on the periphery of the ratchet, or a shape cut by a two-point curve connecting the periphery of the ratchet. Further, it is preferable to provide a camshaft having both a ratchet wheel and a cam. [Embodiment] -7- (4) (4) 200409156 An embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a schematic diagram of an embodiment of a circuit breaker according to the present invention, showing a state of investment. The circuit breaker of this embodiment includes a disconnection control unit having a main shaft 4, an input control unit centered on the protruding shaft 2, a disconnecting spring that engages the main shaft 4 at one end, and a ratchet 5 2 mounted on the protruding shaft 2. A spring portion and a contact portion to which power is switched on or off. Then, the elastic force of the disconnection spring provided in the disconnection spring portion is turned off to cut off the electric power, and the elastic force of the input spring portion is released to the power. The cut-off spring is stored by the release of the input spring, and the input spring is stored by the drive motor of the driving claw. One end of the contact portion is mounted on the main shaft 4, and the other end forms the movable contact 3 of the movable contact 2. The fixed contact 29b of the movable end of the movable contact 3 2 contacts and the fixed connection of the rotary terminal forming the movable contact. Point 29a. A second main lever 5 b is attached to the main shaft 4 in the disconnecting spring portion. A cut-off spring link 23 is attached to the other end of the second main lever 5b. When the main shaft 4 rotates, the cut-off spring link 25 is moved up and down. The lower part of the cut-off spring link 25 is hollow, and a piston 36 is fitted on a support of the hollow portion. Connect the bumper 37 to the lower part of the piston. The buffer 37 is filled with a non-compressed fluid such as oil. The lower end of the cut-off spring link 25 forms a flange, and the cut-off spring (breaking member) 26 is wound around the cut-out spring link 25 by using the flange as a stopper. The upper end of the disconnection spring is pressed by the frame 1. In addition, when the internal fluid of the bumper 37 and the open spring link 25 collide with the piston, the pressure rises to generate braking energy. This braking energy is used as a smooth stop of the movable contact 32. The disconnection control unit attaches a first main lever 5 a to the main shaft 4. 1st main bar -8-(5) (5) 200409156 The lever 5a is formed in the shape of a bouncing dart. The main shaft 4 penetrates the central part, and one end is installed with a roller 6 'and the other light 7 is installed with another light 7. The light 6 can transmit the load from the protrusion 3 when it comes into contact with the outer surface of the protrusion 3 described later. The roller 7 of the first main lever 5a and the second disconnecting latch 8 are formed to be engageable with each other. One end of the second circuit-breaker latch 8 is attached to the rotation shaft, and the other end can be provided with a snap-fit roller 7. The middle part of the second circuit breaker lock fastener 8 is provided with a roller capable of engaging the circuit breaker lock fastener 11 and a return spring 9 is installed at the same time. Equipped with a snap-off trip latch 1 1 a trip trigger 1 4 a at the front end. Although the free-turning circuit breaker latch 1 1 and circuit breaker 1 4 a are formed, the movement is restricted by the reset springs 1 2 and 15. The rotary shaft of the disconnection trigger i 4 a is also provided with a disconnection trigger 1 4b, and a plunger 17 is disposed to abut the solenoid of the disconnection trigger 14b. The return springs 9, 1, 2, and 15 provided in the circuit breaker latch 1 1, the second circuit breaker latch 8 and the circuit breaker 14 a form a state where the elastic force can always be applied. The return spring 9 is a compression coil spring, and the return springs 1 and 15 are torsion springs. The above is the disconnection control unit. Into the spring, a ratchet wheel 5 2 having a plurality of gear teeth on its peripheral portion is mounted on the protruding shaft 52. The ratchet wheel 5 2 is attached to one end portion of the eccentric input spring link 27. The other end portion of the input spring link 27 is connected to the spring support 3 5. The input spring 2 8 is positioned around the input spring link 27. One end of the input spring (input member) 28 is held by the spring support 35 and the other end is held by the frame 1. The teeth of the ratchet wheel 52 are engaged with the driving pawl 54 mounted on the gear shaft 56. The movement of the driving pawl 54 is restricted by the return spring 55 attached to the gear shaft 56. The pinion shaft 5 6 is also mounted with a pinion 51. -9-(6) (6) 200409156 The protruding wheel shaft 5 6 is provided with a protruding wheel 3, and a roller 1 8 is mounted on a part of the protruding wheel 3. An engaging latch 19 is provided to engage the roller 18. The input latch hasp 19 is formed so as to be rotatable around a shaft around which the return spring 20 is wound. An input trigger 22 is provided which can be snap-fitted on a roller in the middle of the input latch 19. The trigger 22 is formed in a T shape, and the intersection of the horizontal bar and the vertical bar forms a rotating shaft. A return spring 23 is wound around the rotating shaft. A plunger 2 4 with a solenoid that can be touched into the trigger 2 2 is provided. The operation of the operation device constituting the power circuit breaker described above will be described using the input state diagram of FIG. 1, the disconnection state diagram of FIG. 2, the instantaneous state diagram of FIG. 3, and the interruption state diagram of FIG. 4. In Fig. 1, both the cut-off spring 26 and the input spring 28 are compression coil springs, and both of them are compressed at the same time. In the state shown in Fig. 1, when the disconnection command is input, the disconnection solenoid is excited. The plunger 17 of the disconnect solenoid protrudes from the right side in the first figure, and presses the disconnect trigger 14b. The disconnection trigger 14b exceeds the spring force of the return spring 15 to cause the interruption trigger 14 to turn in the counterclockwise direction. Thereby, the engagement between the disconnection trigger 4a formed coaxially with the disconnection trigger 14b and the disconnection latch 11 is released. The circuit breaker trigger 1 4a is opened to form a freely revolvable circuit breaker latch 1 1 ° The circuit breaker latch 1 1 is free to rotate, and the second circuit breaker latch 8 is also freely rotated. Among them, the second circuit breaker latch has only been pressed from below by the roller 7 of the main lever 5a, so that it can be turned counterclockwise by the action of the main lever 5a. Further, the return spring 9 is a compression coil spring, and has a function of hindering this operation. When the pressing force from the upper disconnect lever 1-10- (7) (7) 200409156 5 a is restricted, the second disconnect bolt 8 is formed to turn freely and turn counterclockwise. Turn direction. Further, when the pressing force of the disconnection latch 8 that restricts the disconnection spring 26 to move downward disappears, the disconnection spring 26 releases its spring force and presses the disconnection spring link 25 downward. At this time, the trip spring 26 is in a full stroke state, and the trip spring link 25 presses the piston 36 of the bumper 37. The movement of the trip spring link 25 below causes the main lever 5b to rotate in the counterclockwise direction, and as the main lever 5a is also rotated in the counterclockwise direction. The roller 6 at the end of the main lever 5a approaches the adjacent cam 3, and continuously rotates the main lever 5a. When the main shaft 4 rotates counterclockwise, the movable contact piece 32 connected to the main shaft 4 moves downward and opens between the contacts 29a and 29b. The state in which this interruption operation is suspended is shown in FIG. 2. From the disconnected state shown in Fig. 2, the description will be made as to the operation of moving to the first state shown in Fig. 1 as follows. Energize the input solenoid. The plunger 24 of the plunger solenoid protrudes toward the left of the figure, and presses one end of the plunger 22 which forms a T-shape. The pressed trigger 22 is more elastic than the return spring 23, so that the rotating shaft of the trigger 22 is turned counterclockwise. When the input trigger 22 is rotated, the input latch 22 is rotated in the counterclockwise direction by the elastic force of the return spring 20. However, the input spring link 27 eccentrically mounted on the ratchet wheel 52 reaches the top dead center of the highest position by the rotation of the ratchet wheel 52. This is achieved by a driving force transmitted from a motor (not shown) to the pinion 51 by a driving claw 54. The latching buckle 19 is rotated in the counterclockwise direction to release the movement restriction of the cam 3. As a result, only the spring force of the spring 2 8 is applied to the cam shaft 2 of the -11-(8) (8) 200409156 of the mounting cam 3. When the spring force of the spring 28 is input, the spring link 27 is moved downward. When the spring link 27 is moved, the ratchet wheel 52 and the camshaft 2 mounted thereon rotate in the counterclockwise direction. The cam 3 is rotated by the rotation of the cam shaft 2, and the roller 6 contacting the main lever 5a of the cam moves as a driven roller to follow the cam curve. Thereby, the main character shell 5a is rotated clockwise. This state is shown in FIG. 3. When the input operation is performed so that the cam 3 rotates approximately halfway in the counterclockwise direction ', the roller 6 of the main lever 5 and the cam 3 are brought into contact with the cam 3 at its maximum radial position. During this contact, the main lever 5a and the main shaft 4 mounted with the main lever 5a are rotated clockwise at about 60 degrees, and the disconnect spring link 25 connecting the main lever 5b compresses the disconnect spring 26. When the main shaft 4 rotates, the contacts 2 9a and 2 9b are closed by the movable contact 32. The pressing force from the roller 7 acting on the main lever 5 a of the second disconnecting latch 8 is reduced by the cam action of a member provided near the roller 7. Therefore, the second circuit breaker latch hasp 8 rotates clockwise with the force of the open return spring 9 and returns to the original position. Similarly, the breaker latch 1 1 1 is restored to its original position by the restoring force of the return spring 12, and the breaker trigger 4 is restored to the original position by the restoration force of the reset spring 15. In the fourth diagram, the input spring 2 8 ′ is not opened, and the ratchet is turned. Since the cam 3 is separated from the main lever 5a, the main lever 5a is rotated counterclockwise by the elastic force of the compressed cut-off spring 26. As described above, the circuit breaker latch 1 1, the second circuit breaker latch 8 and the circuit breaker 14 are restored to their original positions, so the roller 7 of the main lever 5 a and the second circuit breaker latch 12- (9) (9) 200409156 8 Engage to maintain the breaking spring force and maintain the circuit breaker's input state. After the cam 3 is released from the main lever 5, the spring 2 8 is released, and therefore the rotation counterclockwise continues. Then, the cam 3 exceeds the bottom dead center by the inertia force, and the compression spring 28 is compressed. The cam 3 is stopped when the inertial force of the cam 3 and the elastic force of the compressed input spring 28 are balanced. When the input spring 2 8 which is still compressed after the cam 3 stops is released, the cam 3 is rotated clockwise. Then, the cam 3 is swung and stopped with the lower dead center as the center. However, the ratchet wheel 52, which is coaxial with the cam 3 during the putting operation, also rotates counterclockwise. A cutout portion cut into a circular shape of the cutting head is formed at about 1/4 of the circumference of the ratchet wheel 52. In addition, the peripheral portion 1/6 of the ratchet wheel 5 2 adjacent to the notched portion has a circular shape but no teeth are formed. In the state shown in Fig. 2, although the driving pawl 5 4 is engaged with the gear teeth of the ratchet wheel 52, the driving pawl 5 4 is disengaged from the engagement with the gear teeth with the rotation of the ratchet wheel 52, and the notch or the peripheral surface is moved. For example, in a state shown in Fig. 2 in which the driving of the driving claw 54 of a motor (not shown) is stopped, the ratchet wheel 52 is rotated counterclockwise with the spring force of the input spring 28. As the latch teeth of the ratchet wheel 52 and the driving claw 52 are engaged and disengaged. When the driving pawl 5 4 is pushed up by the teeth of the ratchet wheel 5 2 to the maximum radius position of the ratchet wheel 5 2, the driving pawl 5 4 is then rotated in the counterclockwise direction by the elastic force of the return spring 5 5. In addition, when the ratchet wheel is turned forward once, it exceeds the smooth peripheral portion of the ratchet wheel 52 and abuts the notch portion. When the driving pawl 5 4 exceeds the cutout portion, the driving pawl 5 4 is jumped up from the corner of the ratchet wheel 52 as shown in FIG. 3. Then the ratchet 5 2 as described above, held the bottom dead point -13- (10) 200409156, and finally stopped. The driving pawl that bounces off the corner of the notch portion rotates counterclockwise against the elastic force of the return spring 55, and abuts against the ratchet wheel teeth. When the input operation is stopped, a motor (not shown) is driven to counterclockwise and rotate the pinion 51. Thereby, one side of the pawl shaft 5 6, 2 driving the pawl 5 4 in the counterclockwise direction is locked with the gear tooth latch of the ratchet wheel 52 to rotate the ratchet wheel 52 in the counterclockwise direction. Ratchet 5 2 —Once counterclockwise, the top of the spring link 27 is moved, and the spring is compressed and the cam 3 is stopped to stop the motor. When the spring force of the spring 28 is input, the rollers 丨 8 of the cam 3 are engaged with the lever 19 and the input lever 19 is engaged with the trigger 22, so the spring force can be maintained. That is, the input spring 28 is maintained in a compressed state, and when the motor is stopped, the driving claw 54 is brought into contact with the peripheral portion of the teeth of the ratchet 5 2, and the energy of the motor is not transmitted to the input pin 19. This state is shown in Figure 1. According to this embodiment, when the ratchet wheel 52 is stopped, the driving pawl abuts the ratchet. The impact immediately after the collision is small, the engagement is stable, and the reliability is improved. It can form a compact and lightweight driving pawl or ratchet, and realize a compact and lightweight circuit breaker. In addition, in this embodiment, although the disconnection spring and the input spring are coil springs, other elastic elements such as springs, coil springs, and leaf springs may be used. In order to simplify the structure, the main lever moves the movable contact up and down, but a lever that increases the stroke length of the movable contact can be provided between the main lever and the movable lever, or it can be driven in the direction of I 52 to turn 28. 〇 At half-time, liberate investment. It does not have a lock-and-buckle wheel, and because of this, the contact disc connecting rod is formed integrally with a compressed disc spring. -14-(11) 200409156 In this embodiment, the moment when the driving claw jumps is taken as the moment when the cam 3 leaves the main lever 5a, but the two may be completely separated. In addition, in this embodiment, the return springs provided in the input latches and the input triggers are often elastically used, and these return springs are used as torsion springs, but other elastic elements may be used.
驅動爪5 4的跳起量是以棘輪5 2的缺口部形狀來決 定。本實施例中，是以中心角大約6 0 °作爲缺口部分，但 是缺口的直線只要可以咬合至棘輪的輪齒的齒底圓更內徑 側爲止，不線定期角度爲何。缺口部的形狀不只是以一條 直線切斷圓的形狀也可以複數條直線切斷圓周的形狀，也 可以自由連結圓周上的2點的曲線。亦即，缺口部只要對 於棘輪的輪齒不產生過度衝擊力的構造即可。The jump amount of the driving pawl 54 is determined by the shape of the cutout portion of the ratchet wheel 52. In this embodiment, the center angle is about 60 ° as the notch portion, but as long as the straight line of the notch can be engaged to the inner diameter side of the tooth bottom circle of the tooth of the ratchet, what is the irregular angle? The shape of the notch portion is not limited to a shape in which a circle is cut by a straight line, a shape in which a circle is cut by a plurality of straight lines, and a curve of two points on the circumference can be freely connected. That is, the notch portion may be a structure that does not generate excessive impact force on the teeth of the ratchet.
並且，本發明不僅限於以上說明的實施例，同時可運 用於例如具有複數個投入彈簧或斷路彈簧的操作裝置。本 實施例雖是使用2個斷路栓鎖搭扣，但是也可以只有斷路 扳機，或者具有複數個斷路栓鎖搭扣。投入側同樣可不具 有投入栓鎖搭扣，或者具有複數個。 如上述，根據本發明，投入動作中止時，棘輪以下死 點爲中心，在擺動運動之間使驅動爪跳起，停止棘輪後卡 合驅動爪與棘輪的輪齒，因此可減小對於棘輪的輪齒及驅 動爪的衝擊，提高可靠度。並且，可形成驅動爪與棘輪等 零件的小巧及輕量化，實現斷路器整體的小巧及輕量化。 【圖式簡單說明】 -15- (12) (12)200409156 第1圖是表示本發明電力用斷路器之一實施例的模式 圖，同時壓縮斷路彈簧與投入彈簧的狀態圖，第2圖至第 4圖是表示第1圖表示斷路器的動作圖，第2圖是說明過 渡狀態的圖，第3圖是說明投入狀態的圖，第4圖是說明 投入中止狀態的圖。 元件對照表 1 :框體 2 =凸輪軸 3 :凸輪 4 :主軸 5a :第1主槓桿 5 b :第2主槓桿 6 ·聿昆 7 :輥 9 :復位彈簧 8 :第2斷路栓鎖搭扣 η :斷路栓鎖搭扣 1 2 :復位彈簧 1 4 :斷路扳機 14a :斷路扳機 14b :斷路扳機 1 5 :復位彈簧 1 7 :柱塞 -16- (13)200409156 18 :輥 1 9 :投入栓鎖搭扣 20 :復位彈簧 22 :投入扳機 23 :復位彈簧 2 4 :柱塞 2 5 :斷路彈簧連桿The present invention is not limited to the embodiments described above, and can be applied to, for example, an operating device having a plurality of springs or circuit breakers. Although the present embodiment uses two circuit-breaker latches, it may have only a circuit-breaker trigger or a plurality of circuit-breaker latches. The input side may also be provided without an input latch or has a plurality. As described above, according to the present invention, when the input operation is suspended, the dead center of the ratchet is taken as the center, and the driving pawl is jumped between swinging motions. After stopping the ratchet, the driving pawl and the tooth of the ratchet are engaged, so the ratchet can be reduced. The impact of gear teeth and driving claws improves reliability. In addition, components such as driving claws and ratchet wheels can be reduced in size and weight, and the overall size and weight of the circuit breaker can be reduced. [Brief description of the drawings] -15- (12) (12) 200409156 The first diagram is a schematic diagram showing one embodiment of the power circuit breaker according to the present invention, and the state diagram of the compression spring and the input spring are compressed at the same time. Fig. 4 is a diagram showing the operation of the circuit breaker in Fig. 1. Fig. 2 is a diagram illustrating a transition state. Fig. 3 is a diagram illustrating an input state. Fig. 4 is a diagram illustrating an interrupted state. Component comparison table 1: frame 2 = camshaft 3: cam 4: main shaft 5a: first main lever 5 b: second main lever 6 聿 Kun 7: roller 9: return spring 8: second circuit breaker latch η: Disconnect latch lock buckle 1 2: Return spring 1 4: Disconnect trigger 14a: Disconnect trigger 14b: Disconnect trigger 1 5: Return spring 1 7: Plunger-16- (13) 200409156 18: Roller 1 9: Input latch Lock buckle 20: return spring 22: trigger trigger 23: return spring 2 4: plunger 2 5: disconnect spring link
26 :斷路彈簧 27 :投入彈簧連桿 28 :投入彈簧（投入構件） 2 9 a :固定接点固定接點 29b :固定接点固定接點 3 2 :可動接触子可動接觸件 3 5 :彈簧承體26: Disconnect spring 27: Insert spring link 28: Insert spring (input member) 2 9 a: Fixed contact fixed contact 29b: Fixed contact fixed contact 3 2: Movable contactor movable contact 3 5: Spring bearing
3 6 :活塞 3 7 :緩衝器 5 1 :小齒輪 5 2 :棘輪 5 4 :驅動爪 5 5 :復位彈簧 5 6 :棘輪軸 -17-3 6: Piston 3 7: Shock absorber 5 1: Pinion 5 2: Ratchet 5 4: Drive claw 5 5: Return spring 5 6: Ratchet shaft -17-