200829388 九、發明說明： 【發明所屬之技術領域】 本發明主要係關於一種電動棘輪扳手，尤 由充電式電池包充電，且具備斷電 里可精 用壽命的電動棘輪扳手。 4权汁以延長使 L先珂技術】 棘輪扳手係一種常用以鎖 具，除傳統的手動者外，亦有以氣或螺帽的手工 輪扳手能更快速地旋緊咬—电動驅動者，讓棘 足系A宰公開螺拴或螺帽， 或螺帽更良好的緊密接合程度。 供螺栓 但由於習用之電 緊或-開錄操作時，於最後旋 一肩始氣、開螺栓或螺帽時扭 大，若握持不緊，拓车士触1 負载電机亦取 安全上的顧卢因扭力太大而誤傷人體，有 女王上的顧慮；但若握持太 、 而燒毀，縮短其使用壽命。”、、、、載電流過大 【發明内容】 又g X月人有鑑於習用棘輪扳手操作性能與安全 丨王的不足盘缺生 、 寺經過不斷的試驗與研究，終於發展出 一種成改進習用缺失之本發明。 本發日月φ Φ Γ3 ,, 要目的，在於提供一種具斷電保護功能之充 ^ 棘輪扳手，係藉由斷電保護機制，在負載電流過 大盼立刻停4 ;靈 、 連轉’以確保電動棘輪扳手不致因扭力過大 4 200829388 而誤傷人體。 為達成前述目的採取的主要技術手段係令前述具斷電 保屢功此之充電式電動棘輪扳手係藉由一斷電保護裝置以 偵測一馬達的負載電流，並於負載電流超過設定範圍時， 由斷電保護裝置自動切斷馬達的電力供應，使馬達立即停 止運轉，避免馬達燒毁，以確保使用安全，並延長電動棘 輪扳手的使用壽命。 岫述斷電保護裝置係設於馬達與電源之間，其包括： 一功率電晶體，其連接於馬達與其電源迴路之間； 、 電流感測電路，係透過功率電晶體與馬達連接，以 感測馬達之負载電流； 驅動控制電路，其分別連接電源與功率電晶體的 極； •二電流中斷比較電路，其輸入端係與電流感測電路之 :舳連接以判斷負載電流是否大於一設定的參考值， 其輪出端則連接至驅動控制電路的控制端。 心利用刚述電路設計提供棘輪扳手之馬達一斷電保護功 能’在電源開始供應後，功率電晶體因閘極為高電位而導 :’馬達隨即通電而運轉，纟此同時，電流感測電路將透 :功率電晶體感測馬達的負載電流是否大於比較電路的參 ▲未超過，則維持馬達持續運轉，惟一旦負載電流 :過比較電路的參考值，比較電路隨即令開關電晶體導通 而使功率電晶體截止，從而使馬達停止運轉，以確保馬 不致因過载而燒毁，而獲致斷電保護之目的。 5 200829388 别述包流感測電路與比較電路的輸入端之間進一步設 有一電流放大電路，用以將電流感測電路所感測之負載電 流信號放大後送入比較電路。 前述比較電路的另一輸入端設有一電流設定電路，以 設定斷電保護標準的負載電流大小。 【實施方式】BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an electric ratchet wrench, particularly an electric battery ratchet wrench that is charged by a rechargeable battery pack and has a life-saving life. 4 right juice to extend the L 珂 technology] Ratchet wrench is a commonly used lock, in addition to the traditional manual, there is also a manual wheel wrench with gas or nut to tighten the bite faster - electric drive, Let the spine line A slend the snail or nut, or the nut to a better degree of tight joint. For the bolts, but because of the conventional electric tight or - open recording operation, when the last rotation of the shoulder to start the gas, open the bolt or nut, the twist is large, if the grip is not tight, the extension of the car touch 1 load motor is also safe Gu Luin's torsion is too big to accidentally injure the human body, and there are concerns of the Queen; but if the grip is too much, it burns and shortens its service life. ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The present invention. The present day and the month φ Φ Γ 3 , , the purpose is to provide a charging ratchet wrench with power-off protection function, by means of power-off protection mechanism, in the load current is too large, hope to stop immediately; Ling, even Turn 'to ensure that the electric ratchet wrench does not cause injury to the human body due to excessive torque 4 200829388. The main technical means adopted to achieve the above purpose is to make the above-mentioned rechargeable electric ratchet wrench with power failure protection function by a power failure protection device. In order to detect the load current of a motor and when the load current exceeds the set range, the power supply of the motor is automatically cut off by the power-off protection device, so that the motor stops immediately, the motor is burned to ensure safe use, and the electric motor is extended. The service life of the ratchet wrench. The power failure protection device is disposed between the motor and the power source, and includes: a power transistor, which is connected Between the motor and its power circuit; the current sensing circuit is connected to the motor through the power transistor to sense the load current of the motor; the drive control circuit is respectively connected to the pole of the power supply and the power transistor; The comparison circuit has an input terminal and a current sensing circuit: 舳 connected to determine whether the load current is greater than a set reference value, and the wheel end is connected to the control end of the drive control circuit. The heart provides a ratchet using the circuit design The motor of the wrench has a power-off protection function. After the power supply is started, the power transistor is guided by the high potential of the gate: 'The motor is then energized and operated. At the same time, the current sensing circuit will pass through: the power transistor sensing motor Whether the load current is greater than the reference circuit of the comparison circuit does not exceed, the motor is kept running continuously, but once the load current: the reference value of the comparison circuit is passed, the comparison circuit then turns on the switching transistor to turn off the power transistor, thereby stopping the motor. Operation to ensure that the horse will not be burnt due to overload, and the purpose of power failure protection is obtained. 5 200829388 Further, a current amplifying circuit is further disposed between the infrared detecting circuit and the input end of the comparing circuit for amplifying the load current signal sensed by the current sensing circuit and feeding the signal to the comparing circuit. The other input end of the comparing circuit is provided with a current. Set the circuit to set the load current level of the power-off protection standard.
本發明主要係關於一種具斷電保護功能之充電式電動 棘輪扳手，请配合參看第一圖所示，本發明之棘輪扳手主 要係包含有一本體（1 0)及一結合於本體（1 〇) 一端 之棘輪部（2 〇 );其中： ”请參看第二、三圖所示，該本體（1 0 )主要係由兩 半又體（11) (12)相互蓋合所構成，兩半殼體（工 1 1 2 )可藉由螺栓等元件來加以鎖合固定，而於兩 半成體（1 1 )( 1 2 )的相對内側間設置有兩亦呈半圓 形截面的絕緣片（1 3 2 ); 於兩半殼體（11) (12)間共同容設有一馬達（ 1 4 )及一充電式電池包（i 5 )，電池包（i 5 )與馬 達（1 4 )間係呈電連接’以提供馬$ (丄4 )運轉所需 的電源；於馬達（1 4 )與充電式電池包（丄5 )設有— 開關（1 9 )、一斷電保護裝置（3 〇 )以及一接電座（ ^ 5 2 ) ’其中’馬達（1 4 )、開關（1 9 )、斷電保 護裝置（3 0 )以及接電座（丄5 2 )係包覆定位於㈣ 緣片（1 3 2 )間； 6 200829388 於該接電座（1 5 2)上設置有兩個用以與電池包（ 1 5 )之兩電極相接觸的接腳’該開關（1 9 )係與接電 座（152)*馬達（14)呈電性連接，藉此， = (19)來控制電池包（15)與馬達（14)間的 通^•與否，又，馬* (14)遠離電池包"5)的一端 設置有一輸出轴’於輪出軸上設置有-齒輪（142)， 再於兩半殼體fll、 / )(12)間設置有一穿出本體（1 0 )的按鈕（]_ 9 ?、 , 〇 Λ ^ 个股^丄 iy2)，並設置有一抵靠於按鈕（192 )^的彈簧（1 9 6 )，如此當使用者按壓按* ( 1 9 2 )日寸’忐夠控制開_( 1 9 )的開閉。 於兩半殼體（1 1 ) ( 1 2 )間設置有-為馬達（工 乂 ^、1 4 2 )所傳動的行星齒輪組（1 6 )，藉 由行星齒輪έ且f p、 — (1 6 )的設置，可達到減速的效果；其中 行星齒輪相 (λ 〇 \ "C16)主要係包含有一轉座（162)，於 b 2 )朝向馬達（i 4 )之一側設置有三個行星 齒輪（Ί β β Λ )’各行星齒輪（166)係與馬達（14 1出車由上的齒輪（1 4 2)相嚙合傳動，於轉座（；[6 ；朝向馬達（1 4 )之一側形成有一傳動齒（1 6 轉座 6 8 削述的行星齒輪組（1 Θ )進一步包含有一用以容置 (1 6 2 )及行星齒輪（1 6 6 )於其中的齒環（1 (ι ，於齒環（1β8)的内面形成有一與各行星齒輪 以6 6 )相嚙合的内齒部，該齒環（1 6 8 )的一端係 螺紋螺接結合於一連接頭（丄7 )之内螺紋面，另一 7 200829388 端係螺接於—設於 2) 與半殼體（11) 2 :間而形成定位的定位環（工4 4 )。 C 1 :述的棘輪部（2〇)係組設在本體 於棘輪部（2 〇 ) 一 柒， (Ί 7 , 4 知6又置有外螺紋而螺接連結於連接頭 [1 7 )相對應端的内蟫纹 貝 ^ ^ , 面，精此透過連接頭（1 7、 將棘輪部（2 〇 ) έη+太^ 丧負C 1 7 ) (2。^ ( 1 ◦)的-端，於棘輪部 ，„, n 冑棘輪衣i，由於該棘輪裝置與現有 大致相同而不另瞽砘 、凡胥者 ·( 2 0 )遠技， 輪裝置設置有-伸出棘輪部 響 〇)連接知的傳動軸（22)，嗲值叙 與行星齒於植r 7 c、 ^該㈣軸（2 2 )係 丁“輪組（16)所設轉座（16 6 4 )相嚅合連接。 丨哥勒w ( 1 藉此，當使用者按壓按 )切換至導通狀態時，可…）而使開關（19 )供電而啟動馬達（J =(15)對馬達"4 星齒輪（16fiw Μ輪―轉動’然後透過各行 生Μ輪C166)與齒環 r 1 6 8 )内回部的嚙合傳動， 還谷订生齒輪（1 6 6)险6絲a 翁 Q、 ’、 轉外，亦會相對齒環（1 β 8)么轉，進而帶動轉座（ r η η Α , 62)轉動’再透過傳動齒 ^ 軸（2 2 )的連接來帶動棘輪裝置作 ，來實施鎖緊或鬆開螺栓或螺帽等作t。 I置作動 此時，因棘輪裝置的 H、； s艮、去,, 勒係透過電池包(1 5 )提供 包源以及馬達（i 4 )的驅動， 切所以該棘輪扳手可以不需 另行外接壓力源或電源，所以 .^ ^ 使用者此方便地將該棘輪扳 手攜贡至任何場所進行作章， ^可大幅提高棘輪扳手使用的 方便性；又當電池包（i 5 ) 耵包力用盡後，可將電池包 8 200829388 (15)自本體（1〇)上取下充電 池包（1 5) ’讓棘輪扳手能長時間持續使用更換-新的電 再者’於兩半殼體（1 1 )( 1 2 )間可設置古— 馬達（14)之輪出軸貫穿其中的定位環（1 一供 =該定位環（144)來支樓輸出㈤，使輪出輪在轉： 時此更加穩、定’不會任意晃動；另於馬達（1 4 )的輸出 輔上套設有—位於各行星㈣（1 6 6 )與定位環（; 4)=的塾片（146)，以避免行星歯輪（166)與The present invention relates to a rechargeable electric ratchet wrench with a power-off protection function. Please refer to the first figure. The ratchet wrench of the present invention mainly comprises a body (10) and a body (1 〇). Ratchet at one end (2 〇); where: ” See the second and third figures, the body (10) is mainly composed of two halves (11) and (12) covering each other, two halves The body (work 1 1 2 ) can be locked and fixed by means of bolts and the like, and two insulating sheets which are also semi-circular in cross section are disposed between the opposite inner sides of the two halves (1 1 ) ( 1 2 ) ( 1 3 2 ); a motor (1 4 ) and a rechargeable battery pack (i 5 ) are shared between the two housing halves (11) and (12), and between the battery pack (i 5 ) and the motor (1 4 ) It is electrically connected to provide the power required for the operation of the horse (丄4); the motor (1 4) and the rechargeable battery pack (丄5) are provided with a switch (1 9 ) and a power-off protection device (3). 〇) and a power socket (^ 5 2 ) 'where the 'motor (1 4), switch (1 9), power-off protection device (3 0) and the power socket (丄5 2) are overlaid on (4)Between the edge piece (1 3 2 ); 6 200829388 Two pins for contacting the two electrodes of the battery pack (15) are disposed on the power receiving base (1 5 2). The switch (1 9) It is electrically connected to the power supply base (152)* motor (14), thereby, = (19) to control the connection between the battery pack (15) and the motor (14), and, in addition, the horse* ( 14) One end away from the battery pack "5) is provided with an output shaft 'with a gear (142) on the wheel shaft, and a through-out body is disposed between the two housing halves fll, /) (12) (1) 0) button (]_ 9 ?, , 〇Λ ^ stock ^丄iy2), and set a spring (1 9 6 ) against the button (192) ^, so when the user presses * ( 1 9 2 ) The day inch 'is enough to control the opening and closing of the opening _ ( 1 9 ). Between the two halves of the housing (1 1 ) ( 1 2 ) is provided with a planetary gear set driven by the motor (worker ^, 1 4 2 ) (1 6 ), the deceleration effect can be achieved by the planetary gear έ and the setting of fp, — (1 6 ); wherein the planetary gear phase (λ 〇 \ " C16) mainly includes a rotating seat (162), b 2 ) three planetary teeth are arranged on one side of the motor (i 4 ) (Ί β β Λ ) 'The planetary gears (166) are meshed with the motor (14 1 out of the gear (1 4 2), in the transposition (; [6; towards the motor (1 4) A transmission tooth is formed on the side (the 16 6 rotation seat of the planetary gear set (1 Θ ) further includes a ring gear for receiving (1 6 2 ) and the planetary gear (16 6) therein (1 ( ι , on the inner surface of the ring gear (1β8) is formed with an internal tooth portion that meshes with each of the planetary gears, and one end of the ring gear (1 6 8 ) is threadedly coupled to a connecting head (丄7). The internal thread surface, the other 7 200829388 end is screwed to a positioning ring (located 4) formed between 2) and the half-shell (11) 2: to form a positioning. C 1 : The ratchet portion (2〇) is assembled in the body of the ratchet portion (2 〇), (Ί 7 , 4 know 6 is also provided with external threads and is screwed to the connector [1 7 ] The inner end of the corresponding end is ^ ^ , surface, fine through the joint (1 7, the ratchet part (2 〇) έ η + too ^ 负 negative C 1 7) (2. ^ (1 ◦) - end, Ratchet part, „, n 胄 ratchet clothing i, because the ratchet device is almost the same as the existing one, and the other is the other, the singer (20) telescope, the wheel device is equipped with a - protruding ratchet ring) The transmission shaft (22) is connected to the planetary gears in the r 7 c, ^ (4) axis (2 2 ) and the rotating seat (16 6 4) provided by the wheel set (16).丨哥勒 w (1, when the user presses the button) to switch to the on state, can...) and the switch (19) supplies power to start the motor (J = (15) to the motor " 4 star gear (16fiw Μ The wheel-rotation 'and then through the various rows of the wheel C166) and the inner ring of the ring gear r 1 6 8), the gear transmission gear (1 6 6) insurance 6 wire a Weng Q, ', turn outside, also It will rotate relative to the ring gear (1 β 8), and then drive the rotary seat ( r η η Α , 62) to rotate and then transmit the ratchet device through the connection of the transmission tooth shaft (2 2 ) to implement locking or loosening. Open bolts or nuts for t. I act at this time, because the ratchet device H,; s艮, go, the pull through the battery pack (1 5) to provide the source of the package and the motor (i 4) drive, so that the ratchet wrench can be used without additional external Pressure source or power supply, so ^^ ^ Users can conveniently carry the ratchet wrench to any place for the seal, ^ can greatly improve the convenience of the use of the ratchet wrench; and when the battery pack (i 5) After that, you can remove the battery pack (1 5) from the body (1〇) from the battery pack 8 200829388 (15) 'Let the ratchet wrench be used for a long time to replace it - the new one is again' in the two halves (1 1 ) ( 1 2 ) can set the positioning ring of the ancient-motor (14) wheel-out shaft through it (1 for = the positioning ring (144) to the branch output (five), so that the wheel is turning: At this time, it is more stable, and it will not arbitrarily shake; the output of the motor (1 4 ) is additionally provided with a cymbal (146) located at each planet (4) (1 6 6 ) and the positioning ring (; 4) = To avoid the planetary wheel (166) and
定位環（1 4 4 )直接接觸，而影響到行星齒輪（丄6 6' )的轉動。 又如第四圖所示，該斷電保護裝置（3 〇 )係設於前 述之馬達（14)與接電座（1 52)之間，其電路構造 部刀包括功率電晶體（3 1 )、一電流感測電路（3 2 ) 驅動控制電路（3 3 )、一電流中斷比較電路（3 4)、一龟流放大電路（3 5 )以及一電流設定電路（3 6 )所組成；有關其詳細電路圖，請進一步參閱第五圖所 系’其中： 该功率電晶體（3 1 )，係由一場效電晶體Q2構成 ，其汲/閘極係分別與馬達（1 4 )與電池包（1 5 )連 换； 該電流感測電路（3 2 )，其係設於場效電晶體Q2 之源極，透過場效電晶體Q2與馬達（1 4 )連接，以感 測馬達（1 4 )之負載電流；於本實施例中，其係由二並 聯電阻R8、R9構成； 9 200829388 該驅動控制電路（33)，其係由一 Β」Τ電晶體Q1 構成，其集極分別連接電池包（1 5 )與場效電晶體Q2 的閘極； 該電流中斷比較電路（3 4 )’其一輸入端係透過一 電流放大電路（3 5 )與電流感測電路（3 2 )之輸出端 連接，以判斷負載電流是否大於一設定的參考值’其輸出 端則透過一電阻R3連接至BJT電晶體Q1的基極；於本 實施例中，該電流中斷比較電路（3 4 )與電流放大電路 (3 5 )係由一編號LM358晶片中的運算放大器所構成； 該電流設定電路（3 6 )，係設於電流中斷比較電路 (34)之另一輸入端，用以設定馬達（14)的到達斷 電保護標準的負載電流大小；於本實施例中，其係由二分 壓電阻R5、R7構成。 藉由上述電路設計，在電源開始供應後，場效電晶體 Q2因閘極為高電位而導通，馬達（1 4 )隨即通電而運 轉，在此同時，通過馬達（1 4 )的負載電流透過場效電 晶體Q2為電流感測電路（3 2 )所感測，電流感測電路 (3 2 )即產生一電壓信號，經電流放大電路（3 5 )放 大後送入電流中斷比較電路（3 4 )中； 若馬達（1 4 )的負載電流未超過電流設定電路（3 6 ) 5又疋的參考值’則電流比較電路（3 5 )輸出低電位 予BJT電晶體Q1之基極，則BJT電晶體Q1處於截止狀 態’電池包（1 5 )之電力持續供應予馬達（1 4 ); 若馬達（1 4 )的負載電流超過電流設定電路（3 2 10 200829388 )設定的斷電電流，則電流比較電路（3 5) @出一高電 位的觸發信號T BJT電晶體Q1之基極，使其導通；此時 ，BJT電晶體Q"見同短路’其集極輸出為低電位，場效 電晶體Q2之閘極為低電位而截止，因此，電池包（工5 )停止供電予馬達（i 4 ) ’使馬達（工4 )停止運轉， 以確保馬it ( i 4)不致因過载而燒毁，而獲致斷電保護 之目的。 八呀食阅弟The positioning ring (1 4 4 ) is in direct contact and affects the rotation of the planetary gear (丄6 6'). As shown in the fourth figure, the power-off protection device (3 〇) is disposed between the motor (14) and the power receiving base (1 52), and the circuit structure portion of the blade includes a power transistor (3 1 ). a current sensing circuit (3 2 ), a driving control circuit (3 3 ), a current interrupt comparison circuit (3 4), a turtle current amplifying circuit (3 5 ), and a current setting circuit (36); For detailed circuit diagrams, please refer to the figure in the fifth figure. Where: The power transistor (3 1 ) consists of a potential transistor Q2 with its 汲/gate system and motor (1 4 ) and battery pack ( 1 5) continuous change; the current sensing circuit (3 2 ) is disposed at the source of the field effect transistor Q2, and is connected to the motor (1 4 ) through the field effect transistor Q2 to sense the motor (1 4 In the present embodiment, it is composed of two parallel resistors R8 and R9; 9 200829388 The drive control circuit (33) is composed of a Β" Τ transistor Q1, and the collectors are respectively connected to the battery a package (1 5 ) and a gate of the field effect transistor Q2; the current interruption comparison circuit (3 4 )' has an input terminal through which The current amplifying circuit (3 5 ) is connected to the output end of the current sensing circuit (3 2 ) to determine whether the load current is greater than a set reference value. The output end is connected to the base of the BJT transistor Q1 through a resistor R3. In this embodiment, the current interrupt comparison circuit (34) and the current amplifier circuit (35) are formed by an operational amplifier in a number LM358 chip; the current setting circuit (36) is set in the current The other input terminal of the interrupt comparison circuit (34) is used to set the load current of the motor (14) to the power-off protection standard; in this embodiment, it is composed of two voltage-dividing resistors R5 and R7. With the above circuit design, after the power supply is started, the field effect transistor Q2 is turned on because the gate is extremely high, and the motor (14) is then energized to operate, and at the same time, the load current through the motor (14) passes through the field. The effect transistor Q2 is sensed by the current sensing circuit (32), and the current sensing circuit (32) generates a voltage signal, which is amplified by the current amplifying circuit (3 5) and sent to the current interrupt comparison circuit (3 4 ) If the load current of the motor (1 4 ) does not exceed the reference value of the current setting circuit (3 6 ) 5 and then the current comparison circuit (3 5 ) outputs a low potential to the base of the BJT transistor Q1, then the BJT power The crystal Q1 is in the off state. The power of the battery pack (15) is continuously supplied to the motor (1 4 ); if the load current of the motor (14) exceeds the power-off current set by the current setting circuit (3 2 10 200829388), the current Comparison circuit (3 5) @Output a high potential trigger signal T BJT transistor Q1 base, make it conductive; at this time, BJT transistor Q " see the same short circuit 'its collector output is low potential, field effect The gate of crystal Q2 is extremely low and cut off, therefore, the battery The package (work 5) stops supplying power to the motor (i 4 ) ' to stop the motor (work 4), so as to ensure that the horse (i 4) is not burnt due to overload, and the purpose of power-off protection is obtained. Eight food, reading brother
的外觀圖及剖視圖，直構造Μ ::…㈣實施例 口 ，、偁4興刖一實施例大致相同，不同 提供之開關（19A)為-微動開關，微 =關上具有-可彈性伸縮的動作桿（190A)，又在 扣柄（i92a)，該扣柄（=!有一 ,, 、丄y2A)具適當長彦，豆 去:對應於前述開關（1 9 A )的動作桿（1 9 Q A )， 田吏用者握持於兩半殼體（ 動扣柄（192A)日士，i4 12)外’並向内板 m ( I g A) t σ θ ( 1 9 2 A)末端將壓制開Appearance and cross-sectional view, straight structure Μ ::... (4) Example port, 偁4 Xingyi one embodiment is roughly the same, differently provided switch (19A) is - micro switch, micro = closed with - elastically stretchable action The rod (190A) is again in the buckle handle (i92a), and the buckle handle (=! has a, y, y2A) has a proper length, and the bean goes: the action rod corresponding to the aforementioned switch (1 9 A) (1 9 QA) The user of Tian Hao holds the outer shell of the two halves (moving handle (192A), i4 12) and the end of the inner plate m ( I g A) t σ θ ( 1 9 2 A) will be pressed open.
Li:動作桿（19〇川吏其内縮，而令開關 、丄y a)導通，並使馬達（ 釋放扣柄（1 9 2 U，目丨 運轉；當使用者 1 9 〇 A )復位 、'開關（1 9 A )將因動作桿（ I，從而馬達…）亦停止運轉。 使用上的不足與缺!=二進習用電動棘輪扳手結構及 明未見於刊物或公開使用：符==之佳作’且本發 依法具文提出申請。 口么月專利之申請要件，爰 11 200829388 【屬式簡單說明】 :係本發明一較件奋 係本發明一心：:例之立體圖。 係本發明κ二“列之立體分解_ :係本發明施例之局部剖面圓 季乂么g施例之電流斷電# v 係本發明一較佳實施例之斷電保護襄 1圖·係本發9月又—較隹實施例的立體圖。 圖·係本發明又一較佳實施例的局部剖視 第 第 第 圖 ‘圖 圖 第四® 路方塊圖。 第五ϋ 路圖 之電 主 要元件符號說明 0 )本體 2 )半殼體 4 )馬達 4 4 )定位環 5 )電池包 6 )行星齒輪組 6 4 )傳動齒 6 8 )齒環 （1 7 )連接頭 9 ) ( 1 9 A)開關（丄9 〇 Α )動作构9 2 )按4丑 （1 9 2 A)扣柄 9 6 )彈簧 (1 1 )半殼體 (1 3 2 )絕緣片 (1 4 2 )齒輪(1 4 6 )墊片 (1 5 2 )接電座 (1 6 2 )轉座 (166)行星齒輪 12 200829388Li: The action lever (19 〇 吏 内 内 内 内 内 内 内 内 令 令 令 令 令 导 导 导 导 导 导 , , , , , , , , , , , , , , , , , , , , , , , , , , The switch (1 9 A) will also stop running due to the action lever (I, thus the motor...). Insufficient and lack of use! = Second-in-class electric ratchet wrench structure and not seen in the publication or public use: Fu == 'And this application is filed in accordance with the law. The application requirements of the patent for the month of the month, 爰11 200829388 [Simple description of the genus]: The invention is one of the more intents of the present invention: a three-dimensional diagram of the example. "Stereoscopic decomposition of the column": is the partial cross-section of the embodiment of the present invention, the current interruption of the embodiment, and the power interruption protection of the preferred embodiment of the present invention is based on a power-off protection of the preferred embodiment of the present invention. - Figure 3 is a perspective view of a further preferred embodiment of the present invention, a first partial cross-sectional view of the fourth schematic diagram of the fourth schematic diagram of the fifth embodiment of the circuit. Body 2) half-shell 4) motor 4 4) positioning ring 5) battery pack 6) planetary gear set 6 4) Tooth 6 8) Toothed ring (1 7 ) connector 9 ) ( 1 9 A) Switch (丄9 〇Α ) Action structure 9 2 ) Press 4 ugly (1 9 2 A) to buckle the handle 9 6 ) Spring (1 1 ) Half-shell (1 3 2 ) insulating sheet (1 4 2 ) gear (1 4 6 ) gasket (1 5 2 ) electric socket (1 6 2 ) transposition (166) planetary gear 12 200829388
(2 0 )棘輪部 （2 2 )傳動轴 (3 0 )斷電保護裝置（3 1 )功率電晶體 (3 2 )電流感測電路（3 3 )驅動控制電路 (3 4 )電流中斷比較電路 (3 5 )電流放大電路（3 6 )電流設定電路 13(2 0) ratchet part (2 2 ) drive shaft (30) power-off protection device (3 1 ) power transistor (3 2 ) current sensing circuit (3 3 ) drive control circuit (3 4 ) current interrupt comparison circuit (3 5 ) current amplifying circuit (3 6 ) current setting circuit 13