512380 A7 __B7 五、發明說明（1 / [發明領域] 本發明A關於具有多數並排設置於同一極之可動子以 及分別連接於該可動子之可撓導體之斷路器。 [以往技術] 第5圖為表示例如記载於日本之特開平4·118825號公 報之以往之斷路器之概要圖。第6圖為表示第5圖所示之 斷路器之接觸子部之剖視圖。第7圖為沿著第6圖之 VII-VII線之主要部分放大剖視圖亦即為表示斷路器之接 觸子部成為閉合狀態之圖。第8圖為與第7圖同樣表示斷 路器之接觸子部之斷路狀態之剖視圖。 線 圖中’1為由合成樹脂材料形成之框體，2為多數個並 $設置於框體1之固定導體，3為固定在固定導體2之固 疋接點。4為對於固定接點2施行接觸與離開動作之可動 接點’5為設有可動接點4並以多數個並排設置（表示於第 7圖）之可動子。6為利用可動子銷7將可動子$保持成旋 轉自如之接觸子臂’8為將接觸子臂6支持於框體【成旋 轉自如之接觸子臂銷。9為形成有連接端子之導體，10為 連接可動子5與導體9之可挽導體，u為接㈣力_ > 12為以銷13連繫於接觸子臂6而使可動接點4作開關動 作之開關機構部’ 14為跳脫電釋部，15為消弧裝置。 當以往之斷路器之電路有事故電流等過大電流流通而 使斷路器瞬時產生斷路動作時，開關機構部12動作而使接 觸子臂6以接觸子臂銷8為中心旋轉之同時，可動子$以 可動子銷7為中心旋轉，由此使可動接# 4由固定接點3 ^紙張尺度適用帽國家標準（CNS)A4規格（ χ挪公髮） 1 311092 A7 B7 五、發明說明（2 ) 幵1此時所產生之電弧即由消弧裝置^ 5消弧。 並且’即使在電路有事故電流等過大之電流流通，由 於保遵協調之選擇設定不引起瞬時斷路動作而執行短時間 限時斷路時’使前述時時斷路動作在規定保證時限（最大 〇·5秒）後動作。由於此’在規定短時間之時限以内即使有 事故電流流通’斷路器仍保持閉合狀態，因此，兩接點3、 4不可由於事故電流溶融或炼著。 [欲解決之問題] 在刖述之以往之斷路器，斷路器在閉合狀態下，由於 保持並排設置多數個之可動子5之可動子銷7之前端面〜 f框體1之側壁U之間有狀之間隙G1，因此在此種狀 態下執行短時限斷路動作以前，由於流通三相電流之不同 極間之互相電磁力之作用’使可動子5及可動子銷7以相 當於該間隙部分在第7圖上向橫方向變位。結果，使接觸 成為不穩定而產生在斷路器之短時限斷路動作前可動接點 4與固定接點3間產生電弧之問題。 ’ 本發明為解決此種問題而創作者，其目的在於提供即 使斷路器有流通短時間限之過電流，接點不會向橫方向變 位’而可以圓滑施行開關動作之斷路器。 [解決問題之手段] 本發明之斷路器具有：框體；多數個之固定接點，係 以多數個設置於框體内；多數個之可動子，係具有分別對 於固定接點施行接觸與離開動作之可動接點；以及接觸子 製| f ’係用以將可動子以可動子銷保持成旋轉自如；其特徵 ^紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） 事 項 t 消 2 311092 M2380 經 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 A7 五、發明說明（3 ) 為在對向於可動子銷之前端面之框體之側壁設置傾斜面， 俾使可動子在斷路位置時，可動子銷之前端面與框體之側 壁間具有預疋之間隙，而可動子在閉合位置時可動子銷之 前端面與側壁間之間隙成為微小之間隙之狀態。 再者’亦可以在對向於可動子銷之前端面之框體之側 壁設置減輕摩擦構件。 並且’可動子銷之前端面可以作成為球面。 再且’可動子臂以可動子臂銷支撐成可旋轉，且在可 動子臂銷設置阻止向轴方向移動之管狀之襯套。 本發明也疋一種斷路器，具有：框體；多數個之固定 接點，係設置在框體内；多數個之可動子，係具有分別對 於固定接點施行接觸與離開動作之可動接點；以及接觸子 臂銷，以此將接觸子臂支撐成旋轉自如，而該接觸子臂係 保持可動子成為可旋轉；其特徵為，在接觸子臂與接觸子 丨#銷之間，δ又置管狀之襯套，以減小其間之遊隙並阻止可 動子向橫方向移動。 [圖式簡單說明] 第1圖為表示本發明之第1實施例之斷路器之接觸子 部之斷路狀態之剖視圖。 第2圖為表不第j圖之斷路器之接觸子部之閉合狀態 之剖視圖。 第3圖為表示本發明之第2實施例之斷路器之可動接 觸子之俯視圖。 ，第4圖為表示本發明之第2實施例之斷路器之可動接 本紙張尺㈣财_ --- 1 ^ -------I --------線 (請先閱讀背面之注意事項再填寫本頁) __B7 五、發明說明（4 觸子之正視圖。 第5圖為表示以往之斷路器之概要圖。 第6圖為表示以往之斷路器之接觸子部之剖視圖。 、第7圖為第6圖之沿著VII-VII線之主要部分放大剖 視圖’表示接觸子部之閉合狀態之圖。 、第8圖為同樣表示第7圖之接觸子部之斷路狀態之剖 視圖。 [符號說明] 訂 4 框體 固定導體 可動接點 接觸子臂 可動子銷 導體 接觸壓力彈簧 銷 消弧裝置 管狀襯套 框體之側壁 固定接點 可動，子 可動子銷 接觸子臂銷 可撓導體 開關機構部 跳脫電驛部 滑片 旁路保持器 一實施例之斷路器之 第1圖表示斷路狀態 為表示本發 接觸子部之主要部分放大剖視圖 第2圖表示閉合狀態。此圖中，符 ,吩队一 ^ 姽1至7表示前述以往 裝置之同樣部分，而省略其說明。 圖中，la為框體1之側壁，形成 __^ Λ馬具有可動子5側之 本紙張尺度適用中國國家標準（CNS)A4規格（210 χ 297公釐） 4 311092 512380 A7 五、發明說明（5 ) 尺寸L2大於固定導體2侧之尺寸li之成形用之離模坡度 之傾斜面。此傾斜面為如第〗圖所示，可動子5在斷路位 置時，在可動子銷前端面7a與框體！之側壁^間具有預 疋之間隙G1，如第2圖所示，可動子5向閉合位置移動時， 可動子銷前端面7a與侧壁la間之間隙成為G2之狀態。 例如，630安培框值（ampereframe)至63〇〇安培框值:空 氣斷路器之情形下，間隙G1宜成為2公釐(mm)以上，間 隙G2宜成為0 05至〇 5公釐。 16為作為減輕摩擦構件之滑片，例如由磷青鋼板、不 銹鋼板、施予耐摩耗處理之碳鋼板等形成，此滑片係在可 動子5開關動作使可動子銷7可動子銷7之前 端面7a抵觸之部位之侧壁la，以接著、嵌入等方法設置。 再者，可動子銷7之前端面78為了減小對於滑片16 之接觸摩擦力，形成為球面。 如此構成之斷路器在對向於可動子銷7之前端面7a 之框體1之側壁la設置傾斜面，於可動子5在斷路位置（接 點分離）時，可動子銷7之前端面7a與框體i之侧壁間 具有預定之間隙G1 ;可動子5向閉合位置移動時，可動子 銷7之前端面7a與側壁ia間之間隙（J2成為微小間隙之 狀態在閉合狀態下有事故電流等過大之電流流通時，可動 子不向橫方向變位，結果可以使接觸穩定化，斷路器在短 時限斷路動作前，可動接點4與固定接點3間不產生電& &再者，可動子5及可動子銷7由開關操作而成為 狀態時，設置在可動子銷7之兩端面之球狀之前端面 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 5 311092 IIIIIIIIIIH — ·Iί (請先閱讀背面之注意事項再填寫本頁) 訂.· 線· 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 五、發明說明（6 ) 一面與滑片16接觸一面進行閉合操作，但由於接觸摩捧力 小而可以施行順滑之操作。可動子5成為閉合狀態時可動 子銷7之前端面7a與滑片16之間隙G2成為可動子5可 以施行開關動作之微小間隙，因此由於短時間通電電流而 有不同極間之電磁力之互相作用時，可動子5及可動接點 4僅作此微小間隙之變位，因此接點間不會產生電弧而提 高短時間通電性能。 再者’近年來對連續供電之需求高羅，上述之構成可 謀求對選擇斷路性能不可或缺之短時間通電容量之提昇。 由於可以防止不同極間之互相電磁力作用之可動接點 4之橫方向變位’無須以增加接觸壓力之方法防止橫方向 變位’而抵要有足以抑制接點間之電磁反撥力所需之最小 限度之接觸麼力即可。此效果也同樣對於開關機構部Μ 可以減低投入操作時之接觸麗力，而可以提昇開關耐 能。 第3圖及第4圖為表示本發明之斷路器之另一實施例 之I動接觸子部，第3圖為俯視圖，第4圖為正視圖。圖 中’符號4至13與前述之以往裝置相同在此省略其說明。 17為管狀之概套，係套設在形成可動子5及可撓導體ι〇 可以旋轉之旋轉中心之接觸子銷8。概套17之内周面密指 於接觸子臂銷8,其兩端面頂接於旁路保持器18及接觸子 臂:之側板6a。此襯套17對於可動子部整體固定於框體 而疋位之旁路保持器18及接觸子臂6以幾乎無鬆動狀緊密 接觸因此可動子5及可撓導體1〇以接觸子臂銷8為中心 本紙張尺度適用—⑵^ x 297公髮） -殳轉H兒明(、 8之軸/、旋轉方向無任何阻力而可以旋轉，但接觸子臂銷 由於此Y亦即箭頭Y方向則無平行運動亦無旋轉運動。 亦f可以抑制可動子5及可動接點4向橫方向移動。 亦即’本實施例為不同於第！圖及第2圖所示第以 觸2劈可防止在可動子5以及可撓導體10之旋轉中心之接 处身8之位置之橫方向變位，具有與第1實施例相同 L 匕亦即可以防止不同極間之互相電磁力所引起之橫方 u變位，接.點間不會產生電弧，可#昇短時間通電性能。 再者，亦可以將第3圖及第4圖所示接觸子臂銷8與 一子臂6之間叹置襯套之實施例，與第丨圖及第2圖所 厂、減J框體1之側壁與可動子銷7之間之間隙之實施例 之兩者合併使用，但亦可以分別單獨使用。 口由則述說明可以明瞭，依據本發明之斷路器在對向於 可動子銷之前端面之框體之側壁設置傾斜面，使可動子在 .斷路位置時在可動子銷之前端面與框體之側壁間具有預定 之間隙，而可動子在閉合位置時可動子銷之前端面與側壁 間之間隙成為微小之間隙之狀態。 經濟部智慧財產局員工消費合作社印製 由於此，即使有事故電流等過大電流流通時可動子不 會向棱方向變位，接觸狀況穩定，斷路器不會在短時限斷 路動作前使接點間產生電弧。再者，由於接觸摩擦力小而 可以有順滑之操作。而且，即使短時間通電電流引起之不 同極間之電磁力互相作用，可動子及可動接點僅有該微小 間隙之變位’接點間不會產生電弧，由此短時間通電性能 提昇。再者’祗需有抑制接點間之電磁反撥力所需要之最 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） 311092512380 A7 __B7 V. Description of the invention (1 / [Field of invention] The invention A relates to a circuit breaker having a large number of movable elements arranged side by side at the same pole and flexible conductors respectively connected to the movable element. [Prior Art] Figure 5 This is a schematic diagram showing a conventional circuit breaker described in, for example, Japanese Patent Application Laid-Open No. 4118118. FIG. 6 is a cross-sectional view showing a contact sub-portion of the circuit breaker shown in FIG. 5. FIG. The enlarged sectional view of the main part of the line VII-VII in FIG. 6 is a view showing that the contact sub-section of the circuit breaker is closed. FIG. 8 is a sectional view showing the open state of the contact sub-section of the circuit breaker in the same manner as in FIG. 7. In the diagram, '1 is a frame formed of a synthetic resin material, 2 is a plurality of fixed conductors provided in the frame 1, and 3 is a fixed contact fixed to the fixed conductor 2. 4 is a fixed contact 2 The movable contact '5 for performing the contact and the leaving action is a movable element provided with the movable contact 4 and being arranged side by side (shown in FIG. 7). 6 The movable element $ 7 is held in rotation by the movable element pin 7. Freely contact the sub-arm '8 is to contact the sub-arm 6 is supported on the frame [to be able to contact the sub-arm pin freely. 9 is a conductor formed with a connection terminal, 10 is a releasable conductor connecting the movable element 5 and the conductor 9, u is the connection force_ > 12 is a pin 13 is connected to the switch mechanism unit that contacts the sub-arm 6 and causes the movable contact 4 to switch. 14 is a tripping electro-discharge unit, and 15 is an arc extinguishing device. In the conventional circuit of the circuit breaker, an excessive current such as an accident current flows. When the circuit breaker instantaneously opens, the switch mechanism 12 operates to rotate the contact sub-arm 6 around the contact sub-arm pin 8 while the movable element $ rotates around the movable sub-pin 7 to thereby move the movable contact. # 4 by fixed contact 3 ^ Paper size is applicable to National Cap (CNS) A4 specification (χ Norwegian public hair) 1 311092 A7 B7 V. Description of the invention (2) 幵 1 The arc generated at this time is the arc suppression device ^ 5 Arc extinguishing. And 'Even if the circuit has an excessive current such as an accident current flowing, when the short-term time-interruption is performed because the instantaneous circuit-breaking operation is not selected due to the compliance setting of the guarantee compliance', the above-mentioned time-interruption operation is performed within the specified guarantee time limit (maximum (0.5 seconds). Here, the circuit breaker remains closed even if there is an accident current flowing within the specified short time period. Therefore, the two contacts 3 and 4 cannot be melted or smelted due to the accident current. [Problem to be solved] In the description In the conventional circuit breaker, when the circuit breaker is in a closed state, a plurality of movable pins 5 of the movable element 5 are arranged side by side, and there is a gap G1 between the side faces U of the frame 1 and the side wall U. Therefore, in this state, Before the short-time trip operation is performed, the movable element 5 and the movable element pin 7 are displaced horizontally in FIG. 7 by the equivalent of the gap portion due to the mutual electromagnetic force between different poles of the three-phase current. As a result, the contact becomes unstable and an arc occurs between the movable contact 4 and the fixed contact 3 before the short-term opening operation of the circuit breaker. The creator of the present invention is to solve such a problem, and the object of the invention is to provide a circuit breaker that can smoothly perform switching operations even if the circuit breaker has an overcurrent for a short period of time and the contacts are not displaced in the horizontal direction. [Means for solving the problem] The circuit breaker of the present invention has: a frame body; a plurality of fixed contacts are provided in the frame body; and a plurality of movable elements are provided with contact and leave for the fixed contacts respectively. The movable contact of the action; and the contactor system | f 'is used to keep the movable member to rotate freely with the movable pin; its characteristics ^ paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 public love) t Consumer 2 311092 M2380 Printed by the Intellectual Property Bureau Staff Consumer Cooperative A7. V. Description of the Invention (3) An inclined surface is provided on the side wall of the frame facing the front end of the movable pin, so that when the movable element is in the open position, There is a gap between the front end face of the movable pin and the side wall of the frame. When the mover is in the closed position, the gap between the front end face of the movable pin and the side wall becomes a slight gap. Furthermore, a friction reducing member may be provided on the side wall of the frame facing the front end face of the movable pin. And the front surface of the 'movable pin' can be made into a spherical surface. Furthermore, the movable sub-arm is rotatably supported by a movable sub-arm pin, and a tubular bush is provided on the movable sub-arm pin to prevent movement in the axial direction. The invention also provides a circuit breaker, which has: a frame body; a plurality of fixed contacts are arranged in the frame body; a plurality of movable elements have movable contacts that perform contact and separation actions on the fixed contacts respectively; And contacting the sub-arm pin, so as to support the contact sub-arm to rotate freely, and the contact sub-arm system keeps the movable element rotatable; characterized in that between the contact sub-arm and the contact sub-pin # δ, δ is set again Tubular bushing to reduce the clearance between them and prevent the mover from moving in the lateral direction. [Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing a state in which a contact sub-section of a circuit breaker according to a first embodiment of the present invention is opened. Fig. 2 is a sectional view showing the closed state of the contact sub-section of the circuit breaker shown in Fig. J. Fig. 3 is a plan view showing a movable contactor of a circuit breaker according to a second embodiment of the present invention. Figure 4 shows the movable paper of the circuit breaker in the second embodiment of the present invention. --- 1 ^ ------- I -------- line (please first Read the notes on the back and fill in this page) __B7 V. Description of the invention (front view of 4 contacts. Figure 5 is a schematic diagram showing a conventional circuit breaker. Figure 6 is a contact sub-section of a conventional circuit breaker. Sectional view. Figure 7 is an enlarged sectional view of the main part along the line VII-VII of Figure 6 'shows the closed state of the contact sub-section. Figure 8 is also showing the open state of the contact sub-section of Figure 7 [Symbol Description] Order 4 Frame fixed conductor movable contact contacts the sub-arm movable sub-pin conductor contact pressure spring pin arc suppression device The side wall fixed contact of the tubular bushing frame body is movable, and the sub-movable sub-pin contacts the sub-arm pin The first diagram of the circuit breaker of the embodiment of the flexible conductor switch mechanism part tripping relay stage bypass shroud holder shows the open state is an enlarged cross-sectional view of the main part of the contact sub-section of the present invention. The second diagram shows the closed state. In the figure, the symbol, 吩 team one ^ 姽 1 to 7 indicate the aforementioned past In the figure, the description of the same part of the device is omitted. In the figure, la is the side wall of the frame 1, forming __ ^ Λ The paper size with 5 sides of the movable element is applicable to the Chinese National Standard (CNS) A4 specification (210 x 297 male) (Centi) 4 311092 512380 A7 V. Description of the invention (5) The inclined surface of the mold for the dimension L2 which is larger than the dimension li on the side of the fixed conductor 2. The inclined surface is as shown in the figure. In the position, there is a gap G1 between the front end surface 7a of the movable pin and the side wall ^ of the frame! As shown in FIG. 2, when the movable end 5 moves to the closed position, the front end surface 7a of the movable pin and the side wall The gap between la becomes G2. For example, 630 ampere frame to 630,000 ampere frame: In the case of an air circuit breaker, the gap G1 should be more than 2 mm (mm), and the gap G2 should be 0. 05 to 0. 5 mm. 16 is a sliding plate as a friction reducing member, for example, formed of phosphor steel plate, stainless steel plate, carbon steel plate subjected to abrasion resistance treatment, etc. This sliding plate is used to move the movable element 5 to make the movable element move. The pin 7 is a side wall la of the portion where the front end face 7a of the pin 7 is in contact It is installed by following methods, inserting, etc. In addition, the front end surface 78 of the movable pin 7 is formed into a spherical surface in order to reduce the contact friction force with the slider 16. The circuit breaker thus configured faces the front end 7a before the movable pin 7 is opposed. The side wall la of the frame body 1 is provided with an inclined surface. When the mover 5 is in the disconnected position (the contact is separated), there is a predetermined gap G1 between the front end face 7a of the mover pin 7 and the side wall of the frame i; the mover 5 direction When the closed position is moved, the gap between the front end face 7a and the side wall ia of the movable pin 7 (J2 becomes a small gap state) When an excessive current such as an accident current flows in the closed state, the movable element does not shift in the lateral direction, and the result can be When the contact is stabilized, no electricity is generated between the movable contact 4 and the fixed contact 3 before the circuit breaker opens in a short period of time. Furthermore, when the movable element 5 and the movable element pin 7 are brought into a state by a switch operation, Set the spherical front end of both ends of the movable pin 7. The paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) 5 311092 IIIIIIIIIIH — · Iί (Please read the precautions on the back before filling in this Page) Printed by the Ministry of Economic Affairs and Intellectual Property Bureau, Consumer Co., Ltd. V. Description of the invention (6) The closing operation is performed on the side where the sliding piece 16 is in contact, but the smooth operation can be performed because the contact friction is small. When the mover 5 is in the closed state, the gap G2 between the front end face 7a of the mover pin 7 and the sliding plate 16 becomes a small gap in which the mover 5 can perform switching operations. Therefore, due to the short-term energization current, there is an interaction of electromagnetic forces between different poles. At this time, the movable element 5 and the movable contact 4 only perform the displacement of this small gap, so no arc occurs between the contacts and the short-term power-on performance is improved. Furthermore, in recent years, the demand for continuous power supply is high. The above-mentioned structure can seek to increase the short-time power-on capacity that is indispensable for the selection of disconnection performance. Since the horizontal displacement of the movable contact 4 which can prevent the mutual electromagnetic force between different poles from being 'no need to prevent the horizontal displacement by increasing the contact pressure', it is necessary to have enough to suppress the electromagnetic backwash force between the contacts. With the least amount of contact, you can. This effect can also reduce the contact force when the switch mechanism M is put into operation, and can improve the switch resistance. 3 and 4 are movable contact sub-sections showing another embodiment of the circuit breaker of the present invention. FIG. 3 is a plan view and FIG. 4 is a front view. The reference numerals 4 to 13 in the figure are the same as those of the conventional device described above, and a description thereof is omitted here. 17 is a tube-shaped general sleeve, which is provided on the contact sub-pin 8 forming the movable center 5 and the flexible conductor rotatably rotating center. The inner peripheral surface of the sleeve 17 is closely referred to the contact sub-arm pin 8, and both end surfaces thereof abut on the bypass holder 18 and the contact sub-arm: side plate 6a. This bushing 17 is closely fixed to the bypass holder 18 and the contact sub-arm 6 which are fixed to the frame as a whole, so that the movable element 5 and the flexible conductor 10 contact the sub-arm pin 8 The paper size is applicable for the center—⑵ ^ x 297 公 发)-Turn H Erming (, the axis of 8 /, the rotation direction can be rotated without any resistance, but the contact of the sub-arm pin is because of this Y, which is the direction of the arrow Y) There is no parallel movement or rotation movement. Also f can suppress the movement of the movable element 5 and the movable contact 4 in the lateral direction. That is, 'this embodiment is different from the first! The second and second strokes shown in Fig. 2 and Fig. 2 can be prevented. The horizontal displacement of the position of the joint 8 of the movable center 5 and the center of rotation of the flexible conductor 10 is the same as that in the first embodiment, that is, the horizontal u caused by the mutual electromagnetic force between different poles can be prevented. Displacement, no arc will occur between the contacts, and can be powered up for a short time. In addition, the contact between the contact sub-arm pin 8 and a sub-arm 6 shown in Figures 3 and 4 can also be set The embodiment of the set is between the side wall of the minus J frame 1 and the movable pin 7 as shown in Figs. 丨 and 2 The two of the embodiments are used in combination, but they can also be used separately. The explanation can make it clear that according to the present invention, the side wall of the frame body facing the front end of the circuit breaker facing the movable pin is provided with an inclined surface to make it movable. When the child is in the open position, there is a predetermined gap between the front end face of the movable pin and the side wall of the frame, and when the mover is in the closed position, the clearance between the front face of the movable pin and the side wall becomes a slight gap. Printed by the Consumer Cooperative of the Property Bureau Because of this, even if there is an excessive current such as an accident current, the mover will not be displaced in the direction of the edge, the contact condition is stable, and the circuit breaker will not cause an arc to occur between the contacts before the short-term opening operation. In addition, smooth contact operation is possible due to the low contact friction. Moreover, even if the electromagnetic forces between different poles interact with each other due to the short-term energization current, the movable element and the movable contact have only the displacement of the small gap. There will be no arc between the points, thereby improving the short-term power-on performance. Furthermore, it is necessary to have the most necessary to suppress the electromagnetic backlash between the contacts. Paper scale applicable Chinese National Standard (CNS) A4 size (210 X 297 male love) 311092
五、發明說明（8 J限度之接觸壓力即可，由此提昇啟閉耐久性能。 由於在對向於可動子銷之前端面之框體之側壁設置滅 輕摩擦構件，或可動子之前端面成為球面，因此可動子之 開關動作不受影響。 再者’在接觸子臂與接解子臂銷之間，設置管狀之襯 套以減小其間之遊隙並阻止可動子之橫方向移動，可以防 止可動子及可撓導體之旋轉中心之接觸子臂之位置向橫方 向變位’可以防止不同極間之互相電磁力之橫方向變位， 接點間不會產生電弧，短時間通電流性能提昇。 [產業上之利用性] 本發明之斷路器之接觸穩定，斷路器在短時限斷路動 作前接點間不會產生電弧，開關動作順滑，短時間通電流 性能提昇，開閉耐久性能獲得改善，提昇短時間通電流性 能可以使用為電力受配電用之斷路器。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 8 311092V. Description of the invention (The contact pressure at the limit of 8 J is sufficient, thereby improving the opening and closing durability performance. Because the light friction friction member is provided on the side wall of the frame facing the front end of the mover pin, or the front end of the mover becomes spherical Therefore, the switching action of the mover is not affected. Furthermore, 'a tubular bush is provided between the contact sub-arm and the disengaged sub-arm pin to reduce the clearance therebetween and prevent the lateral movement of the mover, which can prevent The position of the contact sub-arm of the center of rotation of the movable element and the flexible conductor is shifted in the horizontal direction, which can prevent the horizontal direction displacement of the mutual electromagnetic force between different poles, no arc will be generated between the contacts, and the short-time current passing performance is improved. [Industrial applicability] The contact of the circuit breaker of the present invention is stable, the arc will not be generated between the contacts before the short-time disconnection operation, the switching operation is smooth, the short-time current passing performance is improved, and the opening and closing durability can be improved. To improve the short-time current-carrying performance, you can use a circuit breaker for power distribution. (Please read the precautions on the back before filling this page) Member of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Industrial and Consumer Cooperatives This paper is sized for China National Standard (CNS) A4 (210 X 297 mm) 8 311092