M441626 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種自行車之動力輸出機構，特別係關於一 種電助力自行車之後輪動力輸出機構者。 ' 【先前技術】 電助力自行車係在傳統自行車的基本架構上安裝馬達用 以輔助輸出動力，減輕使用者的負擔。 在這些電助力自行車中，有的是將馬達動力輸出至後輪， 例如us 5242335號專利案所揭示之用於複合動力車輛之^星 齒輪系統，或如JP 5-319354號專利案所揭示之雙驅動電動自 行車，前者是將馬達放置於後上叉後方，後者則是將馬 於E體（5)之内，兩者都非將馬達寰設於後輪輪耗，也因^ 其電助力系統所佔體積較大，且外型上較為突兀。 另:方面’電助力自行車大部分的動力來自於馬達因此 馬達與行生齒輪系統之間的配置關係，影響自行車性处 而如何更為精簡及妥善地進行前述配置，則係本創作所 處0 【新型内容】 本創=之主要目的係提供—種馬達内裝於後 助力自行車之後輪動力輸出機構。 &之電 為了達成上述及其他目的，本創作提供_種電助 之後輪動力輸出機構’其包括一輪轂、一輪軸、1盤、：二 M441626 達、-動力整合機構及-單向器。該輪軸係穿設於該輪穀，該 回盤係可轉動地設於該輪軸並用以產生一第一驅動力= 係位於該輪穀内並用以在—減速單元減速後輸出—第^^ 力’該動力整合機構包括一行星窗輪組及一輸出行星支架，該 仃星齒輪組包括-太陽盘輪、數個行星嵩輪及一環齒 陽齒輪係由第-驅動力及第二驅動力： 輪則係由該第-驅動力及第二驅動力另—者所驅動，該此 ，係設置於該輸出行星支架上，且各該行星齒輪係二= 太陽齒輪及環窗輪喷合，該行星齒輪組係用以整合第一望 ==後由該輸出行星支架輸出，該單向器則係連接於該雜 及輸出打星支架H以令輪赌能單向與職 同步轉動。 生叉朱 =由^設計’本創作將馬達及其減速機構妥善整合於輪 =之内、所佔體積較小，且扭力可得提升，故本創作為一整 S性較佳的後輪動力輸出機構。 【實施方式】 成之本創作之結構及其預期達 ^㈣ 制本創作所欲保護之範•，合先敘明。 力自=第一至三圖。在本創作的第-實施例中，-種電助 η後輪動力輸出機構具有一輪較1〇、一輪軸2〇、一 "%㈣馬達4g、—動力整合機構％及一單向器6〇。 體n及fe ig係彻與自行車的後輪連結，其可包括-主殼 體11及—盍餅錢，社M11及端蓋12 M441626 ^另丨具有一穿孔m、12卜於主彀體n及端蓋12之間定義一 合置空間，用以將大部分前述元件容置其内，惟輪軸2〇兩端 及齒盤30等元件則是位於輪轂1〇外側。 該輪軸20係穿設於該輪轂1〇，其兩端穿設於穿孔m、 121之外，而可供自行車的後上、下叉結合固定。 〜該齒盤30係可轉動地設於該輪轴2〇，其具有多個鍊齒供 自行車的鍊條繞設轉以產生—第—驅動力；在其他可能實施 例中，所述後輪動力輸出機構也可以具有多個外徑、齒數不一 的齒盤，而提供多段變速功能。 該馬達40係位於該輪轂1〇内，該馬達4〇具有一固設於 該輪轴20的定子41及-可相對該定子41轉動的轉子42，該 =達40可接此-供電源（例如安袈於自行車上的蓄電池）所 提供之電力’並將電能轉換為轉子42轉動的動能，最後姑由 一減逮單元70減速後輸出一第二驅動力。 … 、'更明確地說，該減速單元70係用以傳遞轉子42的動力， 並以低於轉子42 _速進行輸出該第二驅動力，該減速單元 包括-減速太陽齒輪7卜三減逮行星#輪72、—減速環齒 輪73及一減速打星支架74，該減速太陽齒輪71係與該轉子 42同步轉動，兩者之間可以螺設、緊配或其他固定手段加以固 定，各該減速行星齒輪72係分別與減速太陽齒輪71與該減速 環齒輪73嚙合，該減速行星支架74係固設於該輪軸2〇並用 以定位該些減速行星齒輪72的位置，令該些減速行星齒輪 原地自轉，所述定位可藉由插柱75及軸承76達成。 該動力整合機構50包括一行星齒輪組51及一輸出行星支 5 架55 ’該行星齒輪組51包括—太陽齒輪52、： 及一環齒輪54,該太陽齒輪52係由第-驅動力:星歯輪53 其中-者所驅動，該環#輪54則由該卜驅動力=驅動力 力另-者所驅動，該些拉齒輪53係設置於 第-驅動 55上，且各該行星齒輪53係分別與該太陽齒輪星支架 54喃合，該行星齒輪組51制以整合第— 騎齒輪 該輸出行星支架55輸出。 〜驅動力後由 在本實施财’顧錄54係與賴 齒輪73同步轉動，兩村為—體成型，亦^的減迷環 而藉由其侧定手段齡。糾，該太陽絲52 ^的部件 =輸出行星支架55與套筒部521之間具有St π輸出仃星支架55可相對該太陽齒輪52滑 =星，，包括，551、三設於二= —s又於忒仃星齒輪53軸心的轴承553及三 =Γ 552及轴承553之間，令該行星齒輪：可以該 插柱554為轴心自轉。 /玄單向器60係連接於該輪轂1〇及輸出行星支架％之間， :單向60與輪奴1〇之間或單向器與輸出行星支架μ之 ^可設有若干單向棘m令錄1G僅能單向與該輸出行 生支架55同步轉動。 另外，在第四圖所示第二實施例中，其結構大抵與第一實 知例雷同，主要不同之處在於，其與齒盤30同步轉動的齒輪 為。亥環齒輪54，而與減速環齒輪73同步轉動的齒輪則改為 太陽齒輪52，此時該環錄54可受第—驅動力驅動，而太陽 M441626 齒輪52則受第二驅動力驅動。 基於上述設計，本創作在動力整合機構5〇中，太陽齒輪 ▲M441626 V. New description: [New technical field] This creation is about a bicycle power output mechanism, especially for a rear-wheel power output mechanism of an electric assist bicycle. [Prior Art] The electric assist bicycle is equipped with a motor on the basic structure of the conventional bicycle to assist the output power and reduce the burden on the user. Among these electric assist bicycles, some are motor power output to the rear wheel, for example, a star gear system for a hybrid vehicle disclosed in the patent No. 5242335, or a double drive as disclosed in JP 5-319354 For electric bicycles, the former is to place the motor behind the rear fork, while the latter is to be inside the E body (5). Both of them are not used to set the motor to the rear wheel, but also because of the electric power system. It is larger in volume and more abrupt in appearance. Another aspect: The majority of the power of the electric assist bicycle comes from the configuration relationship between the motor and the motor gear system, which affects the bicycle sex and how to make the above configuration more streamlined and properly. [New content] The main purpose of this product is to provide a rear-wheel power output mechanism for the rear-assisted bicycle. & Power In order to achieve these and other objectives, this creation provides a power-assisted rear-wheel power output mechanism that includes a hub, an axle, a disk, two M441626, a power integration mechanism, and a one-way device. The axle is threaded through the wheel valley, and the return disk is rotatably disposed on the axle and used to generate a first driving force = is located in the wheel valley and is used to output after the deceleration unit is decelerated - the first force The power integration mechanism includes a planetary window wheel set and an output planetary carrier, and the comet gear set includes a sun disk wheel, a plurality of planet wheel wheels, and a ring gear gear train by the first driving force and the second driving force: The wheel is driven by the first driving force and the second driving force, and the wheel is disposed on the output planet carrier, and each of the planetary gears 2 = the sun gear and the ring window wheel are sprayed, The planetary gear set is used to integrate the first target == and is outputted by the output planetary support. The one-way device is connected to the hybrid and output star support H to enable the roulette to rotate in one-way and synchronous operation. The raw fork Zhu = by ^ design 'this creation will properly integrate the motor and its speed reduction mechanism into the wheel, the volume is small, and the torque can be improved, so this creation is a better S-type rear wheel power Output mechanism. [Embodiment] The structure of Chengzhi's creation and its expectations are as follows: (4) The scope of the creation of this creation should be described first. Force from = first to third. In the first embodiment of the present invention, the electric assist η rear wheel power output mechanism has one round of one turn, one axle 2 〇, one "% (four) motor 4g, - power integration mechanism % and a one-way device 6 Hey. The body n and the fe ig are completely connected to the rear wheel of the bicycle, and may include a main casing 11 and a 盍 钱 money, a body M11 and an end cover 12 M441626 ^ another boring m, 12 ribs on the main body n And a space defined between the end caps 12 for accommodating most of the aforementioned components, but the two ends of the axle 2 及 and the spur 30 are located outside the hub 1 . The axle 20 is disposed through the hub 1 , and the two ends of the wheel 20 are disposed outside the through holes m and 121 to be combined with the rear upper and lower forks of the bicycle. The sprocket 30 is rotatably disposed on the axle 2〇, and has a plurality of sprocket wheels for the bicycle chain to be rotated to generate a first driving force; in other possible embodiments, the rear wheel power The output mechanism can also have a plurality of sprocket wheels of different outer diameters and different numbers of teeth, and provide a multi-step shifting function. The motor 40 is located in the hub 1 . The motor 4 has a stator 41 fixed to the axle 20 and a rotor 42 rotatable relative to the stator 41. The voltage 40 can be connected to the power supply ( For example, the electric power provided by the battery installed on the bicycle is converted into electric energy of the rotation of the rotor 42, and finally, a deceleration unit 70 is decelerated to output a second driving force. More specifically, the speed reduction unit 70 is configured to transmit the power of the rotor 42 and output the second driving force at a speed lower than the rotor 42. The speed reduction unit includes a -reduction sun gear 7 Planet # wheel 72, a reduction ring gear 73 and a deceleration star carrier 74, the deceleration sun gear 71 rotates synchronously with the rotor 42, and can be fixed by screwing, tight fitting or other fixing means. The reduction planetary gears 72 are respectively meshed with the reduction sun gear 71 and the reduction ring gear 73. The reduction planetary carrier 74 is fixed to the axle 2〇 and is used for positioning the deceleration planetary gears 72. In situ rotation, the positioning can be achieved by the post 75 and the bearing 76. The power integration mechanism 50 includes a planetary gear set 51 and an output planetary support 5 frame 55'. The planetary gear set 51 includes a sun gear 52, and a ring gear 54. The sun gear 52 is driven by a first driving force: a star The wheel 53 is driven by the driver, and the ring #54 is driven by the driving force=the driving force, and the pulling gears 53 are disposed on the first driving 55, and each of the planetary gears 53 is The sun gear star bracket 54 is respectively squashed, and the planetary gear set 51 is formed to integrate the output of the first planetary gear 55. After the driving force, in the implementation of the implementation of the "Gu Lu 54" and the Lai Gear 73 synchronous rotation, the two villages are body-formed, also ^ fascinating ring by its side means age. Correction, the part of the sun wire 52 ^ = between the output planet carrier 55 and the sleeve portion 521 has a St π output, the comet bracket 55 can slide relative to the sun gear 52 = star, including, 551, three is set at two = s is again between the bearing 553 of the satellite gear 53 axis and the third = Γ 552 and the bearing 553, so that the planetary gear: the plunger 554 can be rotated as the axis. / 玄 单向 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 The m record 1G can only rotate in one direction with the output line bracket 55. Further, in the second embodiment shown in the fourth figure, the structure is substantially the same as that of the first embodiment, and the main difference is that the gear which rotates in synchronization with the spur 30 is . The ring gear 54 is turned on, and the gear that rotates in synchronization with the reduction ring gear 73 is changed to the sun gear 52. At this time, the ring record 54 can be driven by the first driving force, and the sun M441626 gear 52 is driven by the second driving force. Based on the above design, this creation is in the power integration mechanism 5, the sun gear ▲
52與環齒輪54的轉速在不斷變化的過程中，輸出行星支架55 的轉速也將跟著改變，其動力整合關係如下列關係式所示： Ν3ω3 + Nr〇)r = (Ns -h ΝΓ)ω〇 · 其中，N表示齒數，ω表示轉速，s表示太陽齒輪52，^ 表不環齒輪54，而a則表示輸出行星支架55 ;也就是說，第 一、第二驅動力經由太陽齒輪52及環齒輪54輸入後，即被行 星齒輪53動力整合而輸出至輸出行星支架％，並可藉由馬達 40轉速的漸進調變而達成無段變速的目的。 基於上述動力整合關係可知，本創作第一實施例的特色在 於，馬達4G經由減速單元7G所輸出的第二驅動力是傳遞至環 齒輪54，砂職輪Μ的餘較多，因此輸出行星支架Μ 的轉速也將姉增加’故本實施綱提供的後油力輸出機構 具有較佳的加速性，適合於平地騎乘。 另方面’本創作第二實施例的特色，在於上述第二驅 力疋改輸出至太陽錄52，由於太陽齒輪52的紐較少，因 此輸出行星支架55的轉速較低，但減的其輸出扭力會增加， 因此第=實施騎提供的後輪動力輸出機構較適於爬坡: H第-、第二實施例所揭示的態樣皆有其適用 合’使用者自可依需求而採用其中—實施例所揭 輸出機構態樣。 勒力 又，即便第-、第二實施例中，接受第―、第二驅動 齒輪有所差異，惟兩者的馬軌減速機構都是設於輪穀之内， 7 其體積較小，且内建的減速機構不易受外界干擾而故障，故兩 者均可滿足實用上的需求。 由上賴者僅林創作陳佳實絲樣，其中各行 3 = = —個即為足夠，另可於零件之間的適當位置設置 位件，且減速機構並不以行星齒輪％_限，實 成之簡易結構置換或變化，仍應屬於本創作 【圖式簡單說明】 J = S適當的齒輪組，舉凡此等未㈣本創作㈣ 所欲保護之範轉 第一圖係本創作第一實施例之立體圖。 第二圖係本創作第一實施例之分解圖。 第三圖係本創作第—實施例之剖面圖。 第四圖係本創作第二實施例之剖面圖。 【主要元件符號說明】 輪轂10 主殼體11 端蓋12 穿孔 111、121 輪轴20 齒盤30 馬達40 定子41 轉子42 動力整合機構50 行星齒輪組51 環齒輪54 輸出行星支架5s 環體551 插孔552 軸承553 插柱554 單向器60 減速單元70 減速太陽齒輪71 減速行星裔輪 72 減速環齒輪73 M441626 太陽齒輪52 套筒部521 軸承522 行星齒輪53 減速行星支架74 插柱75 轴承76When the rotational speed of the ring gear 54 and the ring gear 54 are constantly changing, the rotational speed of the output planetary carrier 55 will also change, and the dynamic integration relationship is as shown in the following relation: Ν3ω3 + Nr〇)r = (Ns -h ΝΓ)ω 〇· where N represents the number of teeth, ω represents the rotational speed, s represents the sun gear 52, and represents the ring gear 54, and a represents the output planet carrier 55; that is, the first and second driving forces are via the sun gear 52 and After the ring gear 54 is input, it is dynamically integrated by the planetary gear 53 and output to the output planet carrier %, and the stepless shifting can be achieved by the progressive modulation of the rotational speed of the motor 40. Based on the above-described power integration relationship, the first embodiment of the present invention is characterized in that the second driving force outputted by the motor 4G via the speed reducing unit 7G is transmitted to the ring gear 54, and the sand wheel rim is more, so the output planetary bracket is output. The speed of Μ will also increase '. Therefore, the rear oil output mechanism provided by this embodiment has better acceleration and is suitable for flat riding. In another aspect, the second embodiment of the present invention is characterized in that the second drive tampering output is output to the sun record 52. Since the sun gear 52 has fewer springs, the output planetary carrier 55 has a lower rotation speed, but the output is reduced. The torsion force will increase, so the rear wheel power output mechanism provided by the third implementation is more suitable for climbing: H- and the second embodiment are all applicable to the user. - The embodiment of the output mechanism disclosed in the embodiment. In addition, in the first and second embodiments, the first and second driving gears are different, but the two rail speed reducing mechanisms are all located in the wheel valley, 7 which is small in size and The built-in speed reduction mechanism is not susceptible to external interference and malfunction, so both can meet practical needs. Chen Jiashi's silk is created by Lin, who has 3 = = one for each line, and the position can be set at the appropriate position between the parts, and the speed reduction mechanism is not limited to the planetary gear %_. Simple structural replacement or change should still belong to this creation [Simple description of the drawing] J = S appropriate gear set, such as this (4) This creation (4) The first picture to be protected is the first embodiment of this creation Stereo picture. The second drawing is an exploded view of the first embodiment of the present creation. The third drawing is a cross-sectional view of the first embodiment of the present creation. The fourth drawing is a cross-sectional view of the second embodiment of the present creation. [Main component symbol description] Hub 10 Main housing 11 End cover 12 Perforation 111, 121 Axle 20 Sprocket 30 Motor 40 Stator 41 Rotor 42 Power integration mechanism 50 Planetary gear set 51 Ring gear 54 Output planetary bracket 5s Ring body 551 Insert Hole 552 bearing 553 Post 554 One-way unit 60 Reduction unit 70 Deceleration sun gear 71 Deceleration planetile wheel 72 Retarder ring gear 73 M441626 Sun gear 52 Sleeve part 521 Bearing 522 Planetary gear 53 Reduction planetary bracket 74 Post 75 Bearing 76