M418834 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種電動車，特別是指一種安裝在電 動車上且用於變速傳輸動力之自動變速驅動裝置。 【先前技術】 現有之電動代步車、電動自行車、電動機車或電動汽 車等電動車，其驅動裝置有的是以輪敎馬達或是以電動馬 達直接驅動車輪，而有的則是在電動馬達之輸入轴與車輪 之輸出軸間，另外加上數個齒輪組來達到變速的目的，然 而上述變速裝置大多結構複雜、重量大，而且造成重心‘改 變，並需要特別加以潤滑始能維持正常的運作機能，並非 絕佳選擇’同時齒輪組屬於剛性精密的傳動元件，故若藉 齒輪彼此喷接以傳輸動力時，其設計自由度將會變得較低 且成本較高。 再者，隨者各類車款之設計改變，目前有的電動車採 力二瓦數的設計以克服車速或载重限制，而為了配合瓦 卜勢必需要製作更多或更大的齒輪組或軸距，惟 此不但會增加絮 ^ M ，更會增加整體的重量。故齒輪組 作 $長距離傳遞，亦須經常做潤滑及防塵的工 上辻轡爷又會增加機構’而此機構也不易散熱。因此， 2邊速驅動褒置之設計仍有待改善。 【新型内容】 因此’本新型之目的 „ 輕、成本低，且設計自B 提供—種結構簡單'重量 •^大的電動車之自動變速驅動裝 3 本新型之另一目的，即在提供一種製造簡單且維修容 易的電動車之自動變速驅動裝置。 於是，本新型電動車之自動變速驅動裝置，包含一個 動力源、一支被該動力源驅動而旋轉之輸入軸、一支平行 地位在該輸入轴旁側之輸出軸、一個第一傳動單元，及一 個第一傳動單兀。該第一傳動單元包括一個套置在該輸入 軸外圍的第一原動皮帶輪、一個安裝在該輸入軸與第一原 動皮帶輪間之高速離合器、一個安裝在該冑出轴上的第一 被動皮帶輪，及-個圈套在該第一原動皮帶輪與該第一被 動皮帶輪外圍的第—皮帶，該第-原動皮帶輪的外徑大於 該第-被動皮帶輪的外徑。該第二傳動單元包括一個套置 在該輸人軸外圍且與該第—原動皮帶輪相間隔的第二原 動皮帶輪冑安裝在該輸入軸與第二原動皮帶輪間之第 一單向轴承、—個安裝在該輸出轴上的第二被動皮帶輪， 及一個圈套在該第二洛包 一原動皮帶輪與該第二被動皮帶輪外 圍的第二皮帶’該第- 一原動皮帶輪的外徑小於該第二被動 皮，輪的外住。在該輸入轴被該動力源驅動低速旋轉時， 該高速離合器與該第— 該房、動皮帶輪'刀離，且該輸入軸會經 俚叙兮楚° 動該第二原動皮帶輪，並藉該第二皮帶 =該第二被動皮帶輪’以驅動該輸出抽輸出動力，而在 你田胜&地 動问速旋轉時，該高速離合器即會 該原動皮帶輪，並藉該第一皮帶傳 被動皮帶輪’以驅動該輪出轴輸出動力。動該第一 M418834 本新型之功效在於：第一傳動單元與第二傳動單元都 是採用皮帶與皮帶輪設計，可遠距離地在該輸入轴與該輸 出軸之間自動傳輸變速動力，所以能具有結構簡單、重量 輕’且可延長傳動距離的功效。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之四個較佳實施例的詳細說明中，將可 清楚的呈現。M418834 V. New description: [New technical field] The present invention relates to an electric vehicle, and more particularly to an automatic variable speed driving device mounted on an electric vehicle and used for variable speed transmission power. [Prior Art] Existing electric vehicles such as electric scooters, electric bicycles, electric motors, or electric vehicles have driving devices that directly drive the wheels with a rim motor or an electric motor, and some of them are input shafts of the electric motor. A plurality of gear sets are added to the output shaft of the wheel to achieve the purpose of shifting. However, most of the above-mentioned shifting devices are complicated in structure, heavy in weight, and cause the center of gravity to change, and need to be specially lubricated to maintain normal operating functions. It is not an excellent choice. At the same time, the gear set is a rigid and precise transmission component. Therefore, if the gears are sprayed to each other to transmit power, the design freedom will be lower and the cost will be higher. Moreover, with the design changes of various types of vehicles, some electric vehicles are currently designed with two watts of design to overcome the speed or load limit, and in order to cooperate with the whip, more or larger gear sets or shafts must be produced. Distance, but this will not only increase the floc ^ M, but also increase the overall weight. Therefore, the gear set is transmitted over a long distance. It is also necessary to do lubrication and dust-proof work. The grandfather will increase the mechanism, and the mechanism is not easy to dissipate heat. Therefore, the design of the 2-side speed drive device still needs to be improved. [New content] Therefore, the purpose of the present invention is „light, low cost, and designed from B. The simple structure of the electric vehicle with the simple weight and weight is 3. Another purpose of the novel is to provide a new type. An automatic variable speed drive device for an electric vehicle that is simple and easy to maintain. Thus, the automatic variable speed drive device of the electric vehicle includes a power source, an input shaft that is driven to rotate by the power source, and a parallel position. An output shaft on the side of the input shaft, a first transmission unit, and a first transmission unit. The first transmission unit includes a first motive pulley disposed on a periphery of the input shaft, and a first driving pulley mounted on the input shaft a high speed clutch between the motive pulleys, a first passive pulley mounted on the retracting shaft, and a first belt that is sleeved around the first motive pulley and the first passive pulley, the first-primary pulley The outer diameter is larger than the outer diameter of the first-passive pulley. The second transmission unit includes a sleeve disposed on the periphery of the input shaft and the first-active belt pulley a second primary movable pulley rim is mounted on the first one-way bearing between the input shaft and the second primary moving pulley, a second passive pulley mounted on the output shaft, and a snare in the second Luobao The outer belt pulley and the second belt around the second passive pulley wheel have an outer diameter smaller than the second passive skin, and the wheel is externally occupied. When the input shaft is driven by the power source to rotate at a low speed, the high speed The clutch is separated from the first room, the movable pulley, and the input shaft is driven to move the second motive pulley, and the second belt = the second passive pulley is used to drive the output. The power is output, and when you win and rotate, the high-speed clutch will drive the motive pulley, and the first belt transmits the passive pulley to drive the output power of the wheel. The first M418834 The new function is that the first transmission unit and the second transmission unit are both designed with a belt and a pulley, and the transmission power can be automatically transmitted between the input shaft and the output shaft at a long distance. The utility model has the advantages of being simple in structure, light in weight, and capable of extending the transmission distance. [Embodiment] The foregoing and other technical contents, features and effects of the present invention are as follows in detail with reference to four preferred embodiments of the reference drawings. In the description, it will be clearly presented.
在本新型被詳細描述之前，要注意的是，在以下的說 明内容中’類似的元件是以相同的編號來表示。Before the present invention is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals.
參閱圖1’本新型自動變速驅動裝置之第一較佳實施 例，是用於安裝在一輛電動車丨上，該電動車丨可為電動 代步車、電動自行車、電動機車或電動汽車…等電動交通 工具，該電動車1具有數個車輪u(圖中僅顯示—個卜而 該自動變速驅動裴置可用於直接驅動該車輪丨丨，或是間接 地透過齒輪箱（圖未示）再次減速或增速後再驅動該車輪 11 ’惟其並非本新型重點，所以在此不再說明。 此自動變速驅動裝置包含 一個可為電動馬達之動力 源2、一支被該動力源2驅動而旋轉之輸入軸 一支平 行地位在該輸入軸3旁側且供動力輸 隔地安裝在該輸入軸3與該輸出軸4 單元5與一個第二傳動單元6,及一 單元6上且被帶動旋轉的風扇7。 出之輸出軸4、相間 之間的一個第一傳動 個:ic裝在該第二傳動 該第一傳動單元5包括一 個套置在該輸入抽 外圍的 5 M418834 第一原動皮帶輪5卜-個安裝在該輸入軸3與第一原動皮 帶輪51間之同速離合器52、一個卡接固定在該輸出軸4 上的第-被動皮帶輪53,及一個圈套在該第一原動皮帶輪 51與該第一被動皮帶輪53外圍的第一皮帶卩^ 該第一原動皮帶輪51的外徑大於該第一被動皮帶輪 53的外徑，在本實施例中該第—原動皮帶輪51外徑為該 第一被動皮帶輪53外徑的2倍，由於兩者轉速與半徑的 比例關係為反比’也就是…/化驗丨，所以該第—原動 皮帶輪51轉速為該第一被動皮帶輪53轉速的"2。該第 一原動皮帶輪51與該第一被動皮帶輪53，皆具有一 ^由 外周面往中央凹陷且剖面呈时形的第一環槽512、…， 及數個彼此間隔地設置在第一環槽512、532之内周面上 的第-卡槽511、53卜且該第一皮帶54為一圈嵌入第一 裒槽512 532内的環帶’其内周面凸設有數個嚙接於第 一2槽511、531的第一卡齒541，所以該第一皮帶54能 確實傳動該第原動皮帶輪51與該第-被動皮帶輪53， 其傳動效率高且不易鬆脫滑落。 上述高速離合器52包括-個套置在該輸入轴3上且 與該第-原動皮帶輪51結合的離合罩52卜數個分別安裝 在該輸入軸3上且橫向往外朝該離合罩521延伸的彈性件 =2(圖中僅顯示—個），及數個分別安裝在所述彈性件 靠近該離合罩521之-端的摩擦塊523(圖中僅顯示一 個)。使用時，當該輸入軸3轉速慢時由於摩擦塊523 未頂抵於該離合罩52卜所以該離合罩521及其上之第一 能皮帶輪51皆不會轉動，亦即當輸入軸3處於低速狀 …乃呈自由狀態，而當該輸入軸3轉速加快時，在離心 力作用T ’所述摩擦塊523的離心力大於彈性件522的拉 力而向外彈開且緊抵於該離合罩52卜使得該輸入轴3即 可經由該高速離合器52帶動該第一原動皮帶輪”旋轉。 其中，離合罩52】與輸入軸3之間實務上會套設一個軸承 56=增加旋轉順暢度，i由於該高速離合器^為一般現 有設計，其構造並非本新型重點，因此設計上不以本實施 例為限’後面亦不贅述。 该第二傳動單元6包括一個套置在該輸入轴3外圍且 與該第-原動皮帶輪5"目間隔的第二原動皮帶輪Μ、一 個安裝在該輸入軸3與第二原動皮帶輪Μ間之第一單向 轴承62、個卡接gj定在該輸出軸4上的第二被動皮帶輪 =-個圈套在該第二原動皮帶輪61與該第二被動皮 帶輪63外圍的第二皮帶64。 該第二原動皮帶輪61的外徑小於該第二被動皮帶輪 63的外徑，在本實施例中該第二被㈣帶輪⑴卜徑為該 第二原動皮帶輪61夕卜徑的2倍’所以該第二被動皮帶輪 63轉速為該第二原動皮帶輪61轉速的"2。而該第二原動 皮帶輪與該第二被動皮帶輪63’皆具有一道由外周面 往中央凹陷且剖面呈时形的第二環槽612、632 ,及數個 彼此間隔地設置在該第二環槽612、632之内周面上的第 二卡槽川、⑶，且該第二皮帶“則為—圈欲入第二環 槽612、632内的環帶，其内周面&設有數個㈣接於第 二卡槽611 ' 631的第_ +啬“， -碹眘“ 第—卡齒641 ’所以該第二皮帶64也 -確實傳動該第二原動皮帶輪6 …其傳動效率高且不易鬆脫滑落。本;第施 ^。62在設計上也可以為離合器或其他構造，在此Π ::扇7為一個散熱風扇，彳用以增加空氣流動以 …有散.，，、效果。當_風扇7的設置位置亦可以改變不 限定必須位在該第二原動皮帶輪61 λ ’例如亦可以安裝 在該第-原動皮帶輪51、該輸入轴3或該輸出軸4上可 以位在該輸入軸3遠離該動力源2之一端、或位在該第一 原動皮帶輪51與第二原動皮帶輪61之間亦或位在該動 力源2與高速離合器52之間，所以實施上不受限於本實 施例。此外，該風扇7的外型亦可以改變，也可以和該第 二傳動單元6同體製成，不以本實施例為限。 值得一提的是，本實施例之第一皮帶54、第二皮帶 64亦可改用其他構造，例如時規皮帶、正時皮帶、齒輪皮 帶、多槽皮帶、金屬鋼帶、金屬鍊條等等，第一原動皮帶 輪51與第一被動皮帶輪53之第一環槽512、532、第__ 槽511、531，及該第二原動皮帶輪61與該第二被動皮帶 輪63之第二環槽612、632、第二卡槽611、631的形狀、 數量’亦配合皮帶種類而有所變化，不以本實施例為限， 另外皮帶輪之尺寸大小及轉速比亦可自由變化設定，不受 限於本實施例。 使用時，當該輸入軸3被該動力源2驅動而低速旋轉 時’例如該動力源2剛開弘敌氣+ Β μ 合器52盘W , 或即將煞止時，該高逮離 窃52與該第一原動虔帶兹 該坌。。 動反帶輪51分離’且該輸入軸3會唾 〆第一早向軸承62帶動 忑 二…傳動該苐二動皮帶輪61’並藉_ 輪出動力。 被動皮帶輪63,以驅動該輸出轴4 而在該輸人轴3被該動力源2驅動高速旋轉時該言 速離合器52即會作用德叙兮·哲 °问 尸會作用帶動該第一原動皮帶輪51，•談 皮帶54傳動該第一被動皮帶輪53，以驅 ： =出：力。此時該第二被動皮帶輪63也會被該輸出轴4 “第—皮帶64傳動該第二原動皮帶輪η，由於 ，該第二原動皮帶輪61的轉速大於該輪人轴3 迷離所=一翠向轴…會與該第二原動皮帶輪61 刀離，也就是該第一單向軸承62呈空轉狀態。由上述可 〇，本新型之第-實施例藉由該第-傳動單元5與該第二 傳動單元6的設置’可以達到自動變速的目的，更:: 本低及構造簡單之優點。 =圖2’本新型自動變速驅動裝置之第二較佳實施 例的構U大致相同於第一實施例，不同之處在於·本實施 例之第二被動皮帶輪63是套置在該輸出軸4外圍且= 第二傳動單元6還包括-個安裝在該輸出軸4與該第二;： 減帶輪63間之第二單向軸承65，而風扇7則是被安裝 於南速離合器52與動力源2之間。 在該輸入軸3被該動力源2驅動而低速旋轉時該第 二原動皮帶輪61會經由該第二皮帶64 ’傳動該第二=動 M418834 皮帶輪63卡接第二單向軸承65,以帶動該輸出軸4輸出 動力。而在該輸入軸3被該動力源2驅動高速旋轉時，第 一傳動單元5會帶動該輸出轴4高速㈣，此時該輸出轴 4的轉速大於該第二被動皮帶輪63的轉速，致使該第二單 向軸承65與該第二被動皮帶輪63分離，使該第二被動皮 帶輪63不被該輸出軸4帶動’所以該第二原動皮帶輪61 也不會被傳動。 由上述可知，本新型之第二實施例藉由該第一傳動單 兀5與該第二傳動單元6的設置，可以達到自動變速的目 的’更具有變速低頓挫感之優點。 參閱圖3,本新型自動變速驅動裝置之第三較佳實施 例的構造大致相同於第二實施例，不同之處在於：本實施 例之第-，動皮帶輪53是套置在該輸出# 4外圍且該 第-傳動早70 5還包括_個安裝在該輸出轴4與該第 動皮帶輪53間之第三單向軸承55。 —在該輪入抽3被該動力源2驅動而低速旋轉時，韵Referring to FIG. 1 'the first preferred embodiment of the automatic transmission device of the present invention is for mounting on an electric vehicle, which can be an electric scooter, an electric bicycle, an electric motor vehicle or an electric vehicle, etc. In an electric vehicle, the electric vehicle 1 has a plurality of wheels u (only one is shown in the figure) and the automatic transmission driving device can be used to directly drive the wheel rim or indirectly through the gear box (not shown). After the deceleration or acceleration, the wheel 11' is driven, but it is not the focus of this new type, so it will not be described here. The automatic transmission includes a power source 2 that can be an electric motor, and one is driven by the power source 2 to rotate. The input shaft has a parallel position on the side of the input shaft 3 and is mounted on the input shaft 3 and the output shaft 4 unit 5 and a second transmission unit 6, and a unit 6 and is driven to rotate. Fan 7. Output shaft 4, a first transmission between the phases: ic is mounted on the second transmission. The first transmission unit 5 includes a 5 M418834 first primary belt that is placed around the input pumping periphery. 5 - a co-rotating clutch 52 mounted between the input shaft 3 and the first motive pulley 51, a first-passive pulley 53 fixedly coupled to the output shaft 4, and a snare on the first motive pulley 51 The first belt of the first driven pulley 51 is larger than the outer diameter of the first driven pulley 53. In the embodiment, the outer diameter of the first driven pulley 51 is the first 2 times the outer diameter of the passive pulley 53 is the inverse of the ratio of the rotational speed to the radius of the two pulleys, that is, the test 丨, so the rotational speed of the first primary movable pulley 51 is "2 of the rotational speed of the first passive pulley 53. The first motive pulley 51 and the first driven pulley 53 each have a first annular groove 512, which is recessed from the outer peripheral surface and has a cross-sectional shape, and a plurality of first annular grooves are disposed at intervals from each other. The first card slot 511, 53 on the inner circumference of 512, 532 and the first belt 54 is a ring encased in the first groove 512 532. The inner circumferential surface is convexly provided with a plurality of engagements. a first slot 541 of a slot 511, 531, so the first strap 5 4, the first driving pulley 51 and the first-passing pulley 53 can be surely driven, and the transmission efficiency is high and the sliding is not easy to slip off. The high-speed clutch 52 is disposed on the input shaft 3 and is coupled to the first-primary pulley 51. The combined clutch cover 52 is respectively mounted on the input shaft 3 and laterally outwardly extending toward the clutch cover 521 by an elastic member=2 (only one is shown), and several are respectively mounted on the elastic member. The friction block 523 at the end of the clutch cover 521 (only one is shown in the figure). In use, when the rotational speed of the input shaft 3 is slow, the clutch cover 521 and the upper cover 521 are not attached to the clutch cover 52. The first energy pulley 51 does not rotate, that is, when the input shaft 3 is at a low speed, it is in a free state, and when the rotational speed of the input shaft 3 is increased, the centrifugal force of the friction block 523 is greater than the elasticity at the centrifugal force T'. The pulling force of the piece 522 is outwardly bounced and abuts against the clutch cover 52 so that the input shaft 3 can drive the first motive pulley to rotate via the high speed clutch 52. Wherein, between the clutch cover 52] and the input shaft 3, a bearing 56 is practically placed to increase the smoothness of rotation. Since the high-speed clutch is a general design, the structure is not the focus of the present invention, and therefore the design is not The embodiment is limited to the details of the following description. The second transmission unit 6 includes a second motive pulley rim disposed on the periphery of the input shaft 3 and spaced from the first-primary pulley 5", and a first mounting between the input shaft 3 and the second motive pulley A one-way bearing 62, a second passive pulley that is coupled to the output shaft 4, and a second belt 64 that is sleeved around the second primary pulley 61 and the second passive pulley 63. The outer diameter of the second motive pulley 61 is smaller than the outer diameter of the second passive pulley 63. In the embodiment, the second (four) pulley (1) is twice the diameter of the second motive pulley 61. The rotation speed of the second driven pulley 63 is "2 of the rotation speed of the second primary pulley 61. The second motive pulley and the second driven pulley 63' each have a second ring groove 612, 632 which is recessed from the outer peripheral surface and has a cross-sectional shape, and a plurality of second ring grooves are spaced apart from each other. a second card slot on the inner surface of 612, 632, (3), and the second belt "is a ring that is intended to enter the second ring groove 612, 632, and has a plurality of inner circumferential surfaces & (4) The _ + 啬 ", - 碹 “ " - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Loose and slipping. This; the second application ^ 62 can also be designed as a clutch or other structure, here Π :: fan 7 is a cooling fan, 彳 used to increase the air flow to ... have scattered.,,, effect. When the setting position of the fan 7 can also be changed, it is not limited to be located at the second motive pulley 61 λ ', for example, it can also be mounted on the first-primary pulley 51, the input shaft 3 or the output shaft 4, and the input can be located at the input. The shaft 3 is away from one end of the power source 2, or is located at the first motive pulley 51 and the second motive The pulleys 61 are also located between the power source 2 and the high speed clutch 52, so the implementation is not limited to the embodiment. In addition, the appearance of the fan 7 may also be changed, and the second transmission may be The unit 6 is made of the same body, and is not limited to the embodiment. It is worth mentioning that the first belt 54 and the second belt 64 of the embodiment may be replaced with other structures, such as a timing belt, a timing belt, a gear belt, a multi-groove belt, a metal steel belt, a metal chain, and the like, a first ring groove 512, 532 of the first driven pulley 51 and the first driven pulley 53, a __ groove 511, 531, and the second motive pulley The shape and the number of the second ring grooves 612, 632 and the second card slots 611, 631 of the second passive pulley 63 are also changed according to the type of the belt, and are not limited to the embodiment, and the size of the pulley The size and the speed ratio can also be freely changed and are not limited to the embodiment. When used, when the input shaft 3 is driven by the power source 2 and rotates at a low speed, for example, the power source 2 is just open to the enemy + Β μ When the device is 52 disks W, or is about to stop, the high catching theft 52 The first active cymbal belt is 坌. The moving reverse pulley 51 is separated 'and the input shaft 3 will retort the first early to the bearing 62 to drive the ... second... to drive the 苐 two-moving pulley 61' and to take the _ wheel out of power. The driven pulley 63 drives the output shaft 4, and when the input shaft 3 is driven to rotate at a high speed by the power source 2, the speed clutch 52 acts on the Desserts and the sacred body to drive the first motive pulley. 51, • the belt 54 drives the first passive pulley 53 to drive: = out: force. At this time, the second driven pulley 63 is also driven by the output shaft 4 "the belt 64" to the second motive pulley η, Because the rotation speed of the second motive pulley 61 is larger than the rotation of the wheel shaft 3, the direction of the shaft is offset from the second motive pulley 61, that is, the first one-way bearing 62 is in an idling state. According to the above, the first embodiment of the present invention can achieve the purpose of automatic shifting by the arrangement of the first transmission unit 5 and the second transmission unit 6, and further has the advantages of low cost and simple structure. The structure of the second preferred embodiment of the present invention is substantially the same as that of the first embodiment, except that the second passive pulley 63 of the present embodiment is sleeved on the output shaft 4 The peripheral and = second transmission unit 6 further includes a second one-way bearing 65 mounted between the output shaft 4 and the second;: the reduction pulley 63, and the fan 7 is mounted to the south speed clutch 52 Between power source 2. When the input shaft 3 is driven by the power source 2 and rotated at a low speed, the second motive pulley 61 drives the second/moving M418834 pulley 63 via the second belt 64' to engage the second one-way bearing 65 to drive the The output shaft 4 outputs power. When the input shaft 3 is driven to rotate at a high speed by the power source 2, the first transmission unit 5 drives the output shaft 4 at a high speed (four). At this time, the rotation speed of the output shaft 4 is greater than the rotation speed of the second passive pulley 63, so that the input shaft 3 is driven by the power source 2 at a high speed. The second one-way bearing 65 is separated from the second driven pulley 63 such that the second driven pulley 63 is not driven by the output shaft 4 so that the second primary pulley 61 is also not driven. As can be seen from the above, the second embodiment of the present invention can achieve the advantage of the automatic shifting purpose of having a shifting low drop feeling by the arrangement of the first transmission unit 5 and the second transmission unit 6. Referring to Figure 3, the construction of the third preferred embodiment of the automatic shifting drive of the present invention is substantially the same as that of the second embodiment, except that the first-, movable pulley 53 of the present embodiment is sleeved at the output #4 The periphery and the first drive early 70 5 further include a third one-way bearing 55 mounted between the output shaft 4 and the first movable pulley 53. - When the wheeling 3 is driven by the power source 2 and rotates at a low speed, rhyme
二原動皮帶輪61會絰由今·笛’ 第一皮帶64，傳動該第二朝 63卡接第二單向軸承65 ’以帶動該輸出軸4較 二此時該輪…的轉速大於該第一被動皮帶輪 八雜，你神枣55與該第—被動皮帶輪 吏該第—被動皮帶輪53不被該輸出軸4帶動。 而在忒輸入軸3被該動力源2駆動 第一原動皮帶輪5丨合山 疋铍轉時， …J 由該第一皮帶54 ’傳動該第- 動皮帶輪53卡接笛- g人4 接第二早向軸承55,以帶動該輸出軸4 10 M418834 2力，此時該輸出軸4的轉速大於該第二被動皮帶輪“ 、轉速，致使該k單向轴承65會與該第二被動皮帶輪 刀離，令該第二被動皮帶輪63不被該輪出轴4帶動。 由上述可知，本新型之第三實施例藉由該第一傳動單 ^與該第二傳動單元6的設置，可以達到自動變速的目 的，更具有低動力損耗之優點。The second motive pulley 61 will be driven by the current flute 'first belt 64, and the second cam 63 is coupled to the second one-way bearing 65' to drive the output shaft 4 to be second. The passive pulley has eight miscellaneous, the god jujube 55 and the first-passive pulley 吏 the first-passive pulley 53 is not driven by the output shaft 4. When the input shaft 3 is swayed by the power source 2 to move the first motive pulley 5 to the mountain, ...J is driven by the first belt 54' to drive the first-moving pulley 53 to engage the flute-g-man 4 Two early to the bearing 55 to drive the output shaft 4 10 M418834 2 force, at this time the output shaft 4 has a higher rotational speed than the second passive pulley ", the rotational speed, so that the k one-way bearing 65 and the second passive pulley cutter Therefore, the second passive pulley 63 is not driven by the wheel output shaft 4. As can be seen from the above, the third embodiment of the present invention can achieve automatic operation by the arrangement of the first transmission unit and the second transmission unit 6. For the purpose of shifting, it has the advantage of low power loss.
參閲圖4,本新型自動變速驅動裝置之第四較佳實施 例的構造大致相同於第一實施例，不同之處在於：本實施 例之第-被動皮帶輪53是套置在該輸出轴4外圍，且該 第-傳動單元5還包括一個安裝在該輸出軸 動皮帶輪…第三單向轴承55。此外，本實施:之； 扇7類型不同’而且第一原動皮帶輪51、第一被動皮帶輪 53 :第一原動皮帶輪61，及第二被動皮帶輪〇的型態也 不同’内部分別結合有數片扇葉，可以增加通風散熱效果。Referring to FIG. 4, the configuration of the fourth preferred embodiment of the present automatic shifting drive device is substantially the same as that of the first embodiment, except that the first-passive pulley 53 of the present embodiment is sleeved on the output shaft 4. The periphery, and the first transmission unit 5 further includes a third one-way bearing 55 mounted on the output shaft pulley. In addition, the present embodiment: the fan 7 type is different' and the first motive pulley 51, the first passive pulley 53: the first motive pulley 61, and the second passive pulley rim are also different in type. Can increase ventilation and heat dissipation.
在該輸入軸3被該動力源2驅動而低速旋轉時，該第 二原動皮帶輪61會經由該第二皮帶64，傳動該第二被動 皮帶輪63帶動該輸出軸4輸出動力，此時該輸出軸4的 轉速大於該第-被動皮帶輪的53轉速，致使該第三單向 軸承55與該第-被動皮帶輪53分離，令該第一被動皮帶 輪53不被該輸出軸4帶動。 而在該輸入軸3被該動力源2驅動高速旋轉時，該第 一原動皮帶輪51會藉由該高速離合器52帶動該第一皮帶 54，傳動該第—被動皮帶輪53卡接第三單向軸承55，以 帶動該輸出軸4輸出動力’此時該第二被動皮帶輪63也 11 會被該輪出轴4帶動，經該第二皮帶64傳動該第二原動 皮帶輪6卜惟由於該第二原動皮帶輪61的轉速大於該輸 入轴3的轉速，致使該第一單向軸承62與該第二原動皮 帶輪61刀離，讓該第一單向軸承62呈空轉狀態。 由上述可知，本新型之第四實施例藉由該第一傳動單 元5與該第二傳動單元6的設置，可以達到自動變速的目 的，更具有散熱性佳之優點。 綜上所述，本新型自動變速驅動裝置主要是在該輸入 轴3與該輸出轴4之間，安裝有相間隔之第一傳動單元$ 與第一傳動單凡6，而且第一傳動單元5與第二傳動單元 6都是採用皮帶與皮帶輪設計’由於皮帶屬於有彈性的傳 一件所以可遠距離地在該輸入軸3與該輸出軸4之間 自動傳輸變速動力’皮帶輪之中心距基本上可以調整，而 且不需要非常精確較位，所以能具有結構簡單、重量 輕、散熱佳’且設計自由度大的功效，容易更進一步地搭 配其他後端機構、如齒輪箱或變速箱..·等等來達到加力或 增速減速、反轉..·等功效。此外皮帶與皮帶輪相較於齒 輪組’成本或噪音均較低，作動平順，容易維修及润滑， 亦不須經常進行防塵的工作，故能達到廉價耐用、保養容 易並能自由設定變速比的目的。 准、上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍’即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 12 M418834 【圖式簡單說明】 圖1是本新型電動車之自動變速驅動裝置的一第一較 佳實施例的一部份剖視示意圖； 圖2是本新型電動車之自動變速驅動裝置的一第二較 佳實施例的一部份剖視示意圖； 圖3是本新型電動車之自動變速驅動裝置的一第三較 佳實施例的一部份剖視示意圖；及 圖4是本新型電動車之自動變速驅動裝置的一第四較 佳實施例的一部份剖視示意圖。 13 M418834 【主要元件符號說明】 1 ..........電動車 11.........車輪 2 ..........動力源 3 ..........輸入軸 4 ..........輸出軸 5 ..........第一傳動單元 51 .........第一原動皮帶輪 511……第一卡槽 512.......第一環槽 52 .........高速離合器 521 .......離合罩 522 .......彈性件 523……摩擦塊 53 .........第一被動皮帶輪 531……第一卡槽 532 .......第一環槽 54… •…第一皮帶 541… •…第一卡齒 55·.··. •…第三單向軸承 56…… —轴承 6…… •…第二傳動單元 61 ··..· •…第二原動皮帶輪 611… •…第二卡槽 612… •…第二環槽 62··.·· •…第一單向軸承 63···.· •…第一被動皮帶輪 631 ··· •…第二卡槽 632… •…第二環槽 64…… •…第二皮帶 641… •…第二卡齒 65…… …·第二單向軸承 7 ....... …·風扇 14When the input shaft 3 is driven by the power source 2 and rotates at a low speed, the second motive pulley 61 drives the second driven pulley 63 to drive the output shaft 4 to output power through the second belt 64. At this time, the output shaft The rotation speed of 4 is greater than the rotation speed of the first-passive pulley 53 so that the third one-way bearing 55 is separated from the first-passive pulley 53 so that the first driven pulley 53 is not driven by the output shaft 4. When the input shaft 3 is driven by the power source 2 to rotate at a high speed, the first motive pulley 51 drives the first belt 54 by the high speed clutch 52, and the first passive pulley 53 is driven to engage the third one-way bearing. 55, in order to drive the output shaft 4 to output power 'At this time, the second driven pulley 63 is also driven by the wheel-out shaft 4, and the second motive pulley 6 is driven by the second belt 64 due to the second original motion The rotation speed of the pulley 61 is greater than the rotation speed of the input shaft 3, so that the first one-way bearing 62 and the second motive pulley 61 are separated from each other, so that the first one-way bearing 62 is in an idling state. As can be seen from the above, the fourth embodiment of the present invention can achieve the purpose of automatic shifting by the arrangement of the first transmission unit 5 and the second transmission unit 6, and has the advantage of better heat dissipation. In summary, the automatic transmission device of the present invention mainly installs the first transmission unit $ and the first transmission unit 6 between the input shaft 3 and the output shaft 4, and the first transmission unit 5 Both the belt and the pulley design are used with the second transmission unit. 'Because the belt belongs to a flexible transmission piece, the transmission power of the transmission shaft can be automatically transmitted between the input shaft 3 and the output shaft 4 at a long distance. It can be adjusted, and it does not need to be very precise and positional, so it can have the functions of simple structure, light weight, good heat dissipation and large design freedom. It is easy to further match other back-end mechanisms such as gearbox or gearbox.. · Wait to achieve the effect of acceleration or speed reduction, reversal, etc. In addition, the belt and the pulley are lower in cost or noise than the gear set, smooth in operation, easy to repair and lubricate, and do not need to be dust-proof frequently, so that it can be cheap, durable, easy to maintain and free to set the gear ratio. . The above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification of the novel patent application scope and the new description content. , are still within the scope of this new patent. 12 is a schematic cross-sectional view of a first preferred embodiment of the automatic shifting device of the electric vehicle; FIG. 2 is a schematic view of the automatic shifting device of the electric vehicle of the present invention; 2 is a schematic cross-sectional view of a second preferred embodiment of the present invention; FIG. 3 is a partial cross-sectional view of a third preferred embodiment of the automatic shifting device of the present invention; and FIG. A schematic cross-sectional view of a fourth preferred embodiment of the automatic shifting drive. 13 M418834 [Description of main component symbols] 1 ..........Electric vehicle 11.........Wheel 2 ..........Power source 3 .... ...... input shaft 4 .......... output shaft 5 .......... first transmission unit 51 ......... first motive pulley 511 ... first card slot 512....... first ring groove 52 ... ... high speed clutch 521 .... clutch cover 522 .... elasticity Piece 523 ... friction block 53 ... ... first passive pulley 531 ... first card slot 532 .... first ring groove 54 ... • ... first belt 541 ... • ... The first latch 55····....the third one-way bearing 56...the bearing 6...the second transmission unit 61······...the second motive pulley 611...the second card Slot 612... •...Second ring groove 62······...first one-way bearing 63······...first passive pulley 631 ···•...second card slot 632... Ring groove 64... •...second belt 641...•...second card tooth 65...the second one-way bearing 7............fan fan 14