M328295 八、新型說明： 【新型所屬之技術領域】 本創作與運動器材有關，特別是關於一種運動器材的 / 自發電系統。 、 【先前技術】 - 目前許多運動器材為了充分利用使用者運動過程中 • 所消耗的能量，會在運動器材中加裝發電裝置，例如：健 身腳踏車、橢圓機、踏步機等等，其中部分機種即安裝了 發電裝置，因此使用者在操作此類運動器材時，機械能同 時在使用者運動過程中產生，同時機械能經由機構系統傳 遞到發電裝置發電，產生的電能可供運動器材運用，例如: 操作面板、更改運動強度、測量心跳等等，而無需再經由 線路外接到電源插座，藉由外界供給運動器材電源。 第一圖是一種常見的習用自發電系統應用於健身腳 ·- 踏車（註：圖中僅示局部），如第一圖所示之機構，為了使 - 發電裝置（51)發電，因此將發電裝置（51)安裝在飛輪（32) 的一側，藉由飛輪（32)轉動（註：即是令飛輪（32)外圈充 當發電機轉子），與發電裝置（51)的線圈產生磁場變化進 而發電，發電裝置（51)也能藉此磁場的變化產生阻力，控 制飛輪的旋轉困難程度。（註：飛輪内側安裝許多線圈及其 他元件使其成為發電裝置（51)及兼具阻力功能為習知技 藝，此處及圖面未作詳細說明） 前揭習知自發電系統的關鍵在於飛輪(32)轉動時需 M328295 達到足夠的轉速，才能使發電裝置（51)產生足夠的電能供 運動器材運用，因此習知技藝為了使飛輪（32)以高轉速旋 轉，採用了如第一圖所示的傳動機構，具有第一傳動輪 (2〇a) ’當使用者踩踏踏板（lla)驅動第—傳動輪（2〇a)旋 轉時，同時藉由套接於第一傳動輪（2〇a)及 傳動輪 ⑵a)的第一傳動帶(23a)帶動第二傳動輪⑵^以更高轉 速旋轉’第二傳動輪（21a)再同步地帶動_固接的中介 =動輪⑽旋轉，同上所述，當中介傳動輪⑽旋轉時， 奪接於中介傳動輪(26)及第三傳動輪(22a)的第二 的，；it帶動第三傳動輪⑽)以更高速旋轉，㈣ 旋轉，τί動輪(22a)再同步地帶動同轴固接的飛輪(32) 疋轉’此為習知技蔹所换用么 由上所述可知，為·的自發電系統傳動機構。 一、 為了達到足夠使用者操作運動器材所需的 甩月匕，耵揭習知技蓺所柢田认斂蛐你 T而的 杜夕 衩π所知用的整體傳動結構複雜，所雲元M328295 VIII. New Description: [New Technology Field] This creation is related to sports equipment, especially regarding a sports equipment / self-power generation system. [Prior Art] - At present, many sports equipments are equipped with power generation devices in sports equipment in order to make full use of the energy consumed during the user's exercise, such as: exercise bikes, elliptical machines, steppers, etc., some of which are That is, the power generating device is installed, so when the user operates such sports equipment, the mechanical energy is generated during the user's movement, and the mechanical energy is transmitted to the power generating device to generate electricity through the mechanism system, and the generated electric energy can be used by the sports equipment, for example, for example, : Operate the panel, change the intensity of the exercise, measure the heartbeat, etc., without having to connect to the power outlet via the line, and supply the power of the sports equipment by the outside world. The first figure is a common self-generating system applied to the exercise foot. - Treadmill (Note: only the part is shown in the figure), as shown in the first figure, in order to make the power generation device (51) generate electricity, it will The power generating device (51) is mounted on one side of the flywheel (32), and is rotated by the flywheel (32) (note: the outer ring of the flywheel (32) acts as a generator rotor), and a magnetic field is generated from the coil of the power generating device (51). The power is generated by the change, and the power generating device (51) can also generate resistance by the change of the magnetic field, thereby controlling the degree of difficulty in the rotation of the flywheel. (Note: Many coils and other components are installed inside the flywheel to make it a power generating device (51) and the resistance function is a well-known technique, and the details are not described here.) The key to the self-generating system is the flywheel. (32) When the rotation needs M328295 to reach sufficient speed, the power generating device (51) can generate enough electric energy for the sports equipment to be used. Therefore, in order to rotate the flywheel (32) at a high rotation speed, the first figure is adopted. The transmission mechanism has a first transmission wheel (2〇a) 'when the user pedals the pedal (11a) to drive the first transmission wheel (2〇a) to rotate, and simultaneously sleeves the first transmission wheel (2〇) a) and the first transmission belt (23a) of the transmission wheel (2) a) drives the second transmission wheel (2) to rotate at a higher rotational speed. The second transmission wheel (21a) is re-synchronized to move _ the fixed medium = the moving wheel (10) rotates, ibid. As described, when the intermediate transmission wheel (10) rotates, the second of the intermediate transmission wheel (26) and the third transmission wheel (22a) is engaged; the third transmission wheel (10) is driven to rotate at a higher speed, (4) rotation, τί The moving wheel (22a) re-synchronizes the coaxially fixed flywheel (32) 疋Turning to this is a replacement for the conventional technology. As can be seen from the above, it is the self-generating system transmission mechanism. First, in order to achieve enough time for the user to operate the sports equipment, the 耵 习 知 认 认 认 认 认 认 认 T T T T 杜 杜 杜 杜 所 所 所 所 π π
件夕且體積較大走阜忐 々而7L 門旦1 侍成本較尚，機構亦須耗佔較多办 間，影響設計時的自由度。叙夕空 【新型内容】 系統本^ίτ古主要目的在於提供一種運動器材的自卜 ί有姓=有足夠的發電電能且兼具慣性及阻力二' 系統主要包目二♦創作提供的運動器材的自發電 動旋轉的-第―傳動/上樞設被使用者的運動帶 輪於支架上，·傳動飛;二:第一傳動輪一旁樞設-傳動飛 得動軌輪设有一環狀的傳動帶套接部；—第 M328295 接;-第-傳動帶，套接於第一傳動輪和第二傳動輪;支 架上另設有-旋轉式發電裝置；-第三傳動輪，與旋轉式 發電裝置的旋轉軸同_接；-第二傳動帶，套接於傳動 飛輪的傳動帶套接部與第三傳動輪；系統中更包含有一電 控阻力裝置，此電控阻力裝置安裝於傳動飛輪二，可】 由調整電控阻力裝置中的阻力構件，例如磁鐵組，對傳動 飛輪產生不同大小的旋轉阻力，並且電控阻力裝置可藉由 旋轉式發電裝置產生的電能，使得使用者可以用電控=方 式控制阻力構件。 【實施方式】 以下即配合附圖詳細說明本創作所揭露的技術特徵 之一較佳實施例。 本創作之運動器材的自發電系統可應用於健身腳踏 車、橢圓機、踏步機等運動器材，本較佳實施例應用於健 身腳踏車’凊參閲第二圖，第二圖是本創作的自發電系統 (1)裝設於運動腳踏車的平面圖，自發電系統（丨）主要具 有· 一支架（10); —第一傳動輪（2〇)柩接於支架（1〇); 一 傳動飛輪（30)樞接於支架（1〇) ; _電控阻力裝置（5〇)，^ 裝於傳動飛輪（3G)的-侧；—第二傳動輪(21)，與傳= 固接;一旋轉式發電裝扣^ (30^上方，同樣地設於支架⑽)上;—第三傳動輪⑽ 兵％轉式發電裝置（4〇)的旋轉細（43)同軸固接;—第—傳 M328295 動帶（23)，套接於第一傳動輪（20)及第二傳動輪(21); — 第二傳動帶（24)，套揍於傳動飛輪(30)及第三傳動輪 (22)。另外在此一提，在此較佳實施例中，第二傳動輪（21) 及第三傳動輪（22)均採用皮帶輪，而第一傳動帶（23)及第 二傳動帶（24)在本較佳實施例中，均採用皮帶，在其他實 施方式中亦可採用其他機構元件，例如前述傳動輪採用鏈 輪，而前述傳動帶採用鏈條。 请參閱第二圖’第一傳動輪（20)與曲柄（12)同轴固接 於曲柄軸（圖中未示）且枢接於支架（丨〇)上，曲柄（12)尾端 上更裝設踏板（11)以供使用者運動踩踏，進而驅動第一傳 動輪（20)旋轉。傳動飛輪（3〇)樞接於支架（1〇)上，於傳動 飛輪（30)的一侧，第二傳動輪（21)與傳動飛輪（30)同軸固 接’且弟一傳動輪（21)直徑小於第一傳動輪（30)，如此當 使用者踩踏踏板（11)驅動第一傳動輪（2〇)旋轉時，即會藉 由第一傳動帶(23)帶動傳動飛輪(30)以高於第一傳動輪 C20)的轉速旋轉。 請參閱第三圖，第三圖是本較隹實施例之立體圖，其 中旋轉式發電裝置（40)的旋轉軸（43)與第三傳動輪（22) 同車由固接，且旋轉式發電裝置（4〇)設於一支撐板（41)上， Λ支撐板（41)固接於一基座（42)，該基座（42)則設於支架 (10)。傳動飛輪（30)具有一傳動帶套接部（31)，可用以套 接傳動帶，使得傳動飛輪(3α)也能帶動其他元件；於傳動 私輪（30)的傳動帶套接部（31)和第三傳動輪（22)之間套 接第二傳動帶（24)，其中，第三傳動輪(22)直徑小於傳動 M328295 飛輪（30)。在此較佳實施例中，傳動帶套接部（31)採用在 傳動飛輪（30)外周面設一傳動帶套接凹槽，於其他實施方 式中亦可採用其他方式，例如採用另一傳動輪與飛輪同軸 固接。由前述可知，當前述第一傳動輪（2〇)旋轉產生的轉 動能量驅動傳動飛輪（30)轉動時’傳動飛輪（30)藉由傳動 ' 帶套接部（31)同時也帶動套接於其上的第二傳動帶 (24) ’並且驅動第二傳動帶（24)所套接的另一元件第三傳 動輪（22)轉動，並且因為第三傳動輪（22)直徑小於傳動飛 > 輪（30)，使得第三傳動輪（22)轉動時轉速高於傳動飛輪 (30)，而且與第三傳動輪(22)同軸安裝的旋轉式發電裝置 (40)也同步以高於傳動飛輪（3〇)的轉速運轉，使得在一般 運動速率下（本例為踩轉踏板的速度），旋轉式發電裝置 (40)獲得足夠的旋轉速率，產生足夠功率的電能。另外， 於支撐板（41)上設一惰輪（25)，用以抵緊第二傳動帶 (24) ’使其不易滑脫，同樣的，也可以在裝置中另外設惰 , 輪(圖中未示）用以抵緊第一傳動帶（23)。 明參閱弟二圖，本創作於此較佳實施例中，除了習知 技藝所普遍知道的飛輪可以提供運動慣性，於習知的飛輪 外周面上增設了傳動帶套接部（31)，即可令前述傳動飛輪 (30)兼具習知結構中的飛輪及傳動輪機能，藉此簡化結 構。 請芩考第四圖，為了提供可變阻力，於傳動飛輪（30) 的一侧設一電控阻力裝置（50)，例如於本較佳實施例中採 用現今運動器材普遍使用的「渦電流制動器（Eddy M328295On the other hand, the volume is larger. 7 and 7L Mendan 1 is more expensive, and the organization has to spend more time, which affects the freedom of design.叙夕空 [New content] System The main purpose of this system is to provide a kind of sports equipment from the name of the surname = there is enough power to generate electricity and both inertia and resistance two 'system main package two ♦ creation of sports equipment provided Spontaneous electric rotation - the first transmission / upper pivot is carried by the user's motion pulley on the bracket, the transmission fly; two: the first transmission wheel is pivoted - the transmission fly rail is provided with an annular transmission sleeve a joint; - the first M328295; the first - drive belt, sleeved on the first transmission wheel and the second transmission wheel; the bracket is further provided with - rotary power generation device; - the third transmission wheel, and the rotation of the rotary power generation device The second transmission belt is sleeved on the transmission belt sleeve portion and the third transmission wheel of the transmission flywheel; the system further comprises an electric control resistance device, the electronic control resistance device is installed on the transmission flywheel 2, Adjusting the resistance members in the electronically controlled resistance device, such as the magnet group, produces different magnitudes of rotational resistance to the transmission flywheel, and the electrically controlled resistance device can generate electricity by the rotary power generation device, so that the user can use the electricity = Mode control resistance member. [Embodiment] Hereinafter, a preferred embodiment of the technical features disclosed in the present invention will be described in detail with reference to the accompanying drawings. The self-generating system of the sports equipment of the present invention can be applied to exercise equipment such as an exercise bicycle, an elliptical machine, a stepper, etc. The preferred embodiment is applied to an exercise bicycle. 凊 Refer to the second figure, and the second figure is the self-generated power of the present creation. The system (1) is installed on the plan view of the exercise bicycle. The self-generating system (丨) mainly has a bracket (10); the first transmission wheel (2〇) is connected to the bracket (1〇); and the transmission flywheel (30) ) pivotally connected to the bracket (1〇); _ electrically controlled resistance device (5〇), ^ mounted on the side of the transmission flywheel (3G); - second transmission wheel (21), with transmission = fixed; a rotary Power generation buckle ^ (30 ^ above, similarly placed on the bracket (10)); - third transmission wheel (10) soldier% rotary power generation device (4 〇) rotating fine (43) coaxial fixed; - the first transmission M328295 The belt (23) is sleeved on the first transmission wheel (20) and the second transmission wheel (21); - the second transmission belt (24) is sleeved on the transmission flywheel (30) and the third transmission wheel (22). In addition, in this preferred embodiment, the second transmission wheel (21) and the third transmission wheel (22) each adopt a pulley, and the first transmission belt (23) and the second transmission belt (24) are in this comparison. In the preferred embodiment, the belt is used. In other embodiments, other mechanism components may also be used. For example, the aforementioned transmission wheel adopts a sprocket, and the foregoing transmission belt adopts a chain. Please refer to the second figure 'The first transmission wheel (20) and the crank (12) are coaxially fixed to the crankshaft (not shown) and pivoted on the bracket (丨〇), and the crank (12) is more at the end. A pedal (11) is provided for the user to step on the pedal, thereby driving the first transmission wheel (20) to rotate. The transmission flywheel (3〇) is pivotally connected to the bracket (1〇) on one side of the transmission flywheel (30), and the second transmission wheel (21) is coaxially fixed with the transmission flywheel (30) and the transmission wheel (21) The diameter is smaller than the first transmission wheel (30), so that when the user pedals the pedal (11) to drive the first transmission wheel (2〇) to rotate, the first transmission belt (23) drives the transmission flywheel (30) to be high. The rotation speed of the first transmission wheel C20) is rotated. Please refer to the third figure. The third figure is a perspective view of the comparative embodiment. The rotating shaft (43) of the rotary power generating device (40) is fixedly connected with the third transmission wheel (22), and the rotary power generation is performed. The device (4〇) is disposed on a support plate (41), the support plate (41) is fixed to a base (42), and the base (42) is disposed on the bracket (10). The transmission flywheel (30) has a belt sleeve portion (31) which can be used to sleeve the belt so that the transmission flywheel (3α) can also drive other components; the belt sleeve portion (31) and the first portion of the transmission private wheel (30) A second transmission belt (24) is sleeved between the three transmission wheels (22), wherein the third transmission wheel (22) has a smaller diameter than the transmission M328295 flywheel (30). In the preferred embodiment, the belt sleeve portion (31) is provided with a belt sleeve groove on the outer circumferential surface of the transmission flywheel (30). In other embodiments, other manners may be used, for example, another transmission wheel is used. The flywheel is coaxially fixed. It can be seen from the foregoing that when the rotational energy generated by the rotation of the first transmission wheel (2〇) drives the transmission flywheel (30) to rotate, the transmission flywheel (30) is also driven to be sleeved by the transmission 'sleeve portion (31). The second transmission belt (24)' thereon drives the other component of the second transmission belt (24) to rotate the third transmission wheel (22), and because the third transmission wheel (22) has a smaller diameter than the transmission fly> (30), such that the third transmission wheel (22) rotates faster than the transmission flywheel (30), and the rotary power generator (40) mounted coaxially with the third transmission wheel (22) is also synchronized to be higher than the transmission flywheel ( The rotational speed of the vehicle is such that at a general movement rate (in this case, the speed of the pedal), the rotary power generating device (40) obtains a sufficient rotation rate to generate sufficient power. In addition, an idler wheel (25) is arranged on the support plate (41) for abutting against the second transmission belt (24) to make it difficult to slip off. Similarly, an idler wheel may be provided in the device (in the figure) Not shown) to abut the first belt (23). Referring to the second drawing, in the preferred embodiment of the present invention, in addition to the conventionally known flywheel, the flywheel can provide the motion inertia, and the transmission belt sleeve portion (31) can be added to the outer peripheral surface of the conventional flywheel. The aforementioned transmission flywheel (30) has both the flywheel and the transmission turbine in the conventional structure, thereby simplifying the structure. Please refer to the fourth figure. In order to provide variable resistance, an electronically controlled resistance device (50) is provided on one side of the transmission flywheel (30). For example, in the preferred embodiment, the eddy current commonly used in today's sports equipment is used. Brake (Eddy M328295
Current Brake ; ECB)」，如第四爾所示，前述電控阻力 裝置（50)設於傳動飛輪（3〇)的側面圓形凹槽（33)内，而且 電控阻力裝置（50)不會隨著傳動飛輪（3〇)旋轉，該電控阻 力1置(50)主要具有··一驅動器（52)，本實施例中為一馬 達；二移動桿（54)，於移動桿（54)—端設有齒排（55); 一 齒輪組（57)，連接在驅動器（52)(馬達）的出力端與移動桿 (54)的齒排（55)之間；二磁鐵組（53)，包含有二弧形臂 (53a)，弧型臂（53a)接近傳動飛輪（3〇)的外側面貼有若干 磁鐵（53b)，前述移動桿（54)扭對於設有齒排的一端則與 弧型臂（53a)聯結。該驅動器（52)由旋轉式發電裝置（4〇) 供電’並且可驅動齒輪組（5 7 )旋轉，而由於上述聯結關 係，因此齒輪組（57)旋轉時可帶動齒排（55)沿著徑向位 移，藉此使得移動桿（54)同步地徑向位移而往外推出或拉 内拉回弧型臂（53a)，所以貼於弧型臂（53a)上的磁鐵（53b) 與傳動飛輪（30)空間距離可以減少或增加，因此可以改變 飛輪的旋轉阻力（註：ECB作用原理非本創作重點，因此 只作概略說明）。於其他實施方式中，電控阻力裝置（5〇) 也可能採用其他結構，例如，不同於本較佳實施例將電控 阻力裝置（50)安裝於傳動飛輪（30)的一侧圓形凹槽 (33)，也可將其與傳動飛輪（30)同軸並排安裝於飛輪侧 面，或者安裝在傳動飛輪（30)周面外圍的任一處等等，再 者，於其他實施例中，渦流制動器不以徑向的方式與飛輪 作用，而採用軸向作用力的方式，都是可能的實施方式。 透過上述自發電系統，使用者能使旋轉式發電裝置 M328295 (40)發電，而一部分的電能用以控制電控阻力裝置（50)， 使其所包含的磁鐵組（53)改變相對於傳動飛輪（30)的空 間距離關係，因而產生對傳動飛輪（30)大小不同的旋轉阻 力，間接調整使用者踩踏踏板（11)驅動第一傳動輪（20) 旋轉的困難程度，使用者可透過此電控阻力裝置（50)隨意 控制阻力變化，以達到進行不同運動強度的目的，另一部 分的電能可運用於器材儀錶、測量心跳等等其他附屬功 能。.本創作的自發電系統，亦可包含蓄電裝置，用以儲存 > 過剩的電能，可在發電功率不夠的時候提供運動器材電 能，此為習知技藝，在此及圖中未做詳細說明及圖示。 由上述可知，本創作使得使用者可方便地調整電控阻 力裝置（50)產生的阻力大小，進而調整阻力藉此改變運動 強度；並且因為傳動飛輪（30)轉動，回饋使用者運動過程 中所需的運動慣性，使得使用者在運動過程中更為順暢舒 適，而旋轉式發電裝置（40)在本創作中也以足夠的預定倍 率，數倍於使用者驅動的第一傳動輪（10)的轉速轉動，使 得自發電系統（1)具有足夠的電能供使用者操作各種裝 _ 置，例如操作面板、調整運動強度、測量心跳等等，最重 要的是本創作中的自發電系統相較於習知的自發電系 統，省去了第一圖中的第三皮帶輪（26)，而第一圖中充塞 於飛輪（32)之一側的繁雜的發電機線圈組成的發電裝置 (51)，也改以設於運動器材上的旋轉式發電裝置（50)，並 且於傳統飛輪增設傳動帶套接部（31)，改變習知飛輪僅具 有提供使用者運動時所需的運動慣性的功能，使得飛輪也 11 M328295 具有帶動其他機構元件的作用，因此本創作相較於前述習 知自發電系統，使用的元件更少，機榛元件的組合運用更 為精簡進步。 以上所述及圖面和實施例，僅是本創作一較佳實施 型態，並不以此限定可能實施範圍，本創作所主張之權利 / 範圍自應以申請專利範圍所述為準。 | 【阖式簡單說明】 第一圖是習知自發電系統裝設於運動腳踏車之平面 圖， 第二圖是本創作一較佳實施例裝設於運動腳踏車之 平面圖； 第三圖是本創作一較佳實施例對應於第二圖狀態的 立體圖；以及 第四圖是本創作一較佳實施例當中的電控阻力裝置 内部機構圖。 【主要元件符號說明】 1 自發電系統 10 支架 11 踏板 12 曲柄 20 第一傳動輪 21 第二傳動輪 22 第三傳動輪 23 第一傳動帶 24 第二傳動帶 25 惰輪 12 M328295 30 傳動飛輪 31 傳動帶套接部 32 飛輪 33 圓形凹槽 40 旋轉式發電裝置 41 支撐板 42 基座 44 旋轉軸 50 電控阻力裝置 52 驅動器 53 磁鐵組 53a 孤型臂 53b 磁鐵 54 移動桿 55 .齒條 56 磁鐵. 57 齒輪組 奢 13Current Brake; ECB)", as shown in the fourth, the aforementioned electronically controlled resistance device (50) is disposed in the side circular groove (33) of the transmission flywheel (3〇), and the electronically controlled resistance device (50) is not The electric control resistance 1 (50) mainly has a driver (52), which is a motor in this embodiment; and a moving rod (54) on the moving rod (54). The end is provided with a tooth row (55); a gear set (57) is connected between the output end of the driver (52) (motor) and the tooth row (55) of the moving rod (54); the second magnet group (53) ), comprising two arc-shaped arms (53a), the arc-shaped arm (53a) is attached to a plurality of magnets (53b) on the outer side of the transmission flywheel (3〇), and the moving rod (54) is twisted to the end provided with the tooth row Then it is coupled with the arc arm (53a). The driver (52) is powered by a rotary power generating unit (4〇) and can drive the gear set (57) to rotate, and due to the above-mentioned coupling relationship, the gear set (57) can rotate along the gear row (55). Radial displacement, whereby the moving rod (54) is radially displaced synchronously to push out or pull back the arc arm (53a), so the magnet (53b) attached to the arc arm (53a) and the transmission flywheel (30) The spatial distance can be reduced or increased, so the rotational resistance of the flywheel can be changed (Note: The principle of ECB action is not the focus of this creation, so it is only a brief description). In other embodiments, the electronically controlled resistance device (5〇) may also adopt other structures, for example, different from the preferred embodiment, the electronically controlled resistance device (50) is mounted on one side of the transmission flywheel (30). The slot (33) may also be mounted side by side coaxially with the transmission flywheel (30) on the side of the flywheel, or mounted anywhere on the periphery of the peripheral surface of the transmission flywheel (30), etc. Further, in other embodiments, the eddy current The brake does not act in a radial manner with the flywheel, and the use of axial forces is a possible embodiment. Through the above self-generating system, the user can make the rotary power generation device M328295 (40) generate electricity, and a part of the electric energy is used to control the electronically controlled resistance device (50), so that the magnet group (53) contained therein is changed relative to the transmission flywheel. (30) The spatial distance relationship, thus generating a rotational resistance different to the size of the transmission flywheel (30), indirectly adjusting the difficulty of the user pedaling the pedal (11) to drive the rotation of the first transmission wheel (20), the user can pass the electricity The control resistance device (50) randomly controls the resistance change to achieve the purpose of performing different exercise intensity, and another part of the electric energy can be applied to the instrumentation, measuring the heartbeat and other auxiliary functions. The self-generating system of the present invention may also include a power storage device for storing > excess electrical energy, which can provide sports equipment power when the power generation is insufficient. This is a well-known technique and is not described in detail herein. And the icon. It can be seen from the above that the creation allows the user to conveniently adjust the resistance generated by the electronically controlled resistance device (50), thereby adjusting the resistance to change the exercise intensity; and because the transmission flywheel (30) rotates, feedback the user during the movement. The required motion inertia makes the user more smooth and comfortable during the movement, and the rotary power generating device (40) also has a sufficient predetermined magnification in the creation, several times the user-driven first transmission wheel (10) The rotation speed of the self-generating system (1) has sufficient electric energy for the user to operate various devices, such as operating panels, adjusting the exercise intensity, measuring the heartbeat, etc., most importantly, the self-generating system in the present creation In the conventional self-generating system, the third pulley (26) in the first figure is omitted, and the first figure is a power generating device (51) composed of a complicated generator coil stuffed on one side of the flywheel (32). Also, the rotary power generating device (50) provided on the sports equipment is added, and the transmission belt sleeve portion (31) is added to the conventional flywheel, and the conventional flywheel is changed only to provide the user's movement. Function of inertia, so that the flywheel 11 M328295 has also lead to other elements of the action mechanism, and therefore compared to the present conventional creation self-generating systems, the use of fewer components, combined machine hazel streamline element to have a more progressive. The above descriptions of the drawings and the embodiments are merely a preferred embodiment of the present invention and are not intended to limit the scope of the invention. The scope and scope of the present invention is subject to the scope of the patent application. [Flat Description] The first figure is a plan view of a conventional self-powered system installed on a sports bicycle. The second figure is a plan view of a preferred embodiment of the present invention installed on a sports bicycle. The third picture is a creation of the present. The preferred embodiment corresponds to a perspective view of the second state of the drawing; and the fourth figure is a diagram of the internal mechanism of the electrically controlled resistance device in a preferred embodiment of the present invention. [Main component symbol description] 1 Self-generating system 10 Bracket 11 Pedal 12 Crank 20 First transmission wheel 21 Second transmission wheel 22 Third transmission wheel 23 First transmission belt 24 Second transmission belt 25 Idler 12 M328295 30 Transmission flywheel 31 Transmission belt cover Joint 32 Flywheel 33 Circular groove 40 Rotary power generator 41 Support plate 42 Base 44 Rotary shaft 50 Electrically controlled resistance device 52 Driver 53 Magnet group 53a Solitary arm 53b Magnet 54 Moving rod 55. Rack 56 Magnet. 57 Gear set luxury 13