TW202346159A - A driving system for an e-bike or a pedelec - Google Patents

A driving system for an e-bike or a pedelec Download PDF

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TW202346159A
TW202346159A TW112110739A TW112110739A TW202346159A TW 202346159 A TW202346159 A TW 202346159A TW 112110739 A TW112110739 A TW 112110739A TW 112110739 A TW112110739 A TW 112110739A TW 202346159 A TW202346159 A TW 202346159A
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Taiwan
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helical gear
gear stage
electric motor
electric
stage
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TW112110739A
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Chinese (zh)
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米克爾 弗里
史蒂芬 本德
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德商保時捷電動自行車性能有限公司
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Publication of TW202346159A publication Critical patent/TW202346159A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/10—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with bevel gear wheels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The driving system (10) for an e-bike or a pedelec is equipped with a pedal shaft (11), an electric machine (12), which is connected to the pedal shaft (11), and a gearbox (13), wherein the gearbox (13) switches between the electric machine (12) and the pedal shaft (11), wherein the gearbox (13) has a spur gear stage (14), a first bevel gear stage (15) and a second bevel gear stage (16), wherein, the spur gear stage (14) is directly connected to the electric machine (12), wherein the second bevel gear stage (16) is directly connected to the pedal shaft (11), and the first bevel gear stage (15) switches between the spur gear stage (14) and the second bevel gear stage (16).

Description

電動自行車或電動助力車之驅動系統 Drive system for electric bicycles or electric mopeds

本發明係有關一種電動自行車或電動助力車之驅動系統。 The invention relates to a driving system for an electric bicycle or an electric moped.

自行車的驅動系統，無論是傳統自行車、電動自行車或電動助力車，都有一個踏板軸，且踏板曲柄係與踏板軸有效連接。踏板曲柄具有一個踏板，騎車人用他的腳支撐自己。電動自行車或電動助力車的驅動系統也具有一個電動機，其亦與踏板軸相互連接。齒輪箱可以連接在電動機和踏板軸之間。 The driving system of a bicycle, whether it is a traditional bicycle, an electric bicycle or an electric moped, has a pedal shaft, and the pedal crank system is effectively connected to the pedal shaft. A pedal crank has a pedal that the rider uses his feet to support himself. The drive system of an electric bicycle or electric moped also has an electric motor, which is also interconnected with the pedal shaft. A gearbox can be connected between the electric motor and the pedal shaft.

眾所周知的電動自行車或電動助力車的驅動系統需要大量的安裝空間。這損害了電動自行車或電動助力車的整體美學印象。 It is well known that the drive systems of electric bicycles or electric mopeds require a large amount of installation space. This detracts from the overall aesthetic impression of the e-bike or moped.

JP 3700 773 B2揭露一種用於電動自行車或電動助力車的驅動系統，其中，齒輪箱連接在電動機和踏板軸之間，其中，齒輪箱包括正齒輪級(spur gear stage)和斜齒輪級(bevel gear stage)。 JP 3700 773 B2 discloses a drive system for an electric bicycle or an electric moped, wherein a gearbox is connected between the motor and the pedal shaft, wherein the gearbox includes a spur gear stage and a bevel gear stage).

從US 7,284,631 B2、CN 105,449,921 A、CN 2,277,934 Y、DE 694 16,742 T2、DE 695 07,870 T2和DE 20 2019 103,283 U1可以進一步瞭解電動自行車或電動助力車的驅動系統。 You can learn more about the drive system of electric bicycles or electric mopeds from US 7,284,631 B2, CN 105,449,921 A, CN 2,277,934 Y, DE 694 16,742 T2, DE 695 07,870 T2 and DE 20 2019 103,283 U1.

電動自行車或電動助力車需要新的小型驅動系統。本發明的目的是為電動自行車或電動助力車提供這種驅動系統。 Electric bikes or mopeds require new small drive systems. The object of the present invention is to provide such a drive system for an electric bicycle or an electric moped.

該目的通過如請求項1所述的電動自行車或電動助力車的驅動系統實現。 This object is achieved by a drive system for an electric bicycle or an electric moped as described in claim 1.

根據本發明的用於電動自行車或電動助力車的驅動系統包括踏板軸、與踏板軸有效連接的電動機、以及齒輪箱，其中，齒輪箱連接在電動機和踏板軸之間。根據本發明的驅動系統的齒輪箱包括正齒輪級、第一斜齒輪級和第二斜齒輪級，其中，正齒輪級直接與電動機連接，其中，第二斜齒輪級直接連接踏板軸，且其中，第一斜齒輪級連接在正齒輪級和第二斜齒輪級之間。 The driving system for an electric bicycle or an electric moped according to the present invention includes a pedal shaft, an electric motor effectively connected with the pedal shaft, and a gearbox, wherein the gearbox is connected between the electric motor and the pedal shaft. The gearbox of the drive system according to the invention includes a spur gear stage, a first helical gear stage and a second helical gear stage, wherein the spur gear stage is directly connected to the electric motor, wherein the second helical gear stage is directly connected to the pedal shaft, and wherein , the first helical gear stage is connected between the spur gear stage and the second helical gear stage.

在根據本發明的驅動系統中，齒輪箱具有正齒輪級、第一斜齒輪級和第二斜齒輪級。本發明的用於電動自行車或電動助力車的驅動系統的特點是緊湊的設計。 In the drive system according to the invention, the gearbox has a spur gear stage, a first helical gear stage and a second helical gear stage. The drive system of the invention for an electric bicycle or electric moped is characterized by a compact design.

較佳地，電動機沿踏板軸且/或橫向部分延伸。這也有助於為用於電動自行車或電動助力車的驅動系統提供緊湊設計。 Preferably, the electric motor extends along the pedal axis and/or lateral portion. This also contributes to a compact design for drive systems for e-bikes or mopeds.

較佳地，正齒輪級的第一齒輪較佳地佈置成與電動機的驅動軸同軸，並且正齒輪級的第二齒輪與正齒輪級的第一齒輪嚙合，並且正齒輪級的第二齒輪與第一斜齒輪級的第一斜齒輪同軸佈置並以抗扭方式連接，其中，第一斜齒輪級的第二斜齒輪和第一斜齒輪級的第一斜齒輪嚙合，且第一斜齒輪級的第二斜齒輪與第二斜齒輪級的第一斜齒輪同軸設置並以 不可旋轉方式連接，且其中，與第二斜齒輪級的第一斜齒輪嚙合的第二斜齒輪級的第二斜齒輪同軸設置在踏板軸上。這樣的設置也有助於為電動自行車或電動助力車的驅動系統提供緊湊設計。 Preferably, the first gear of the spur gear stage is preferably arranged coaxially with the drive shaft of the electric motor, and the second gear of the spur gear stage meshes with the first gear of the spur gear stage, and the second gear of the spur gear stage meshes with the first gear of the spur gear stage. The first helical gear of the first helical gear stage is coaxially arranged and connected in a rotationally fixed manner, wherein the second helical gear of the first helical gear stage meshes with the first helical gear of the first helical gear stage, and the first helical gear stage The second helical gear of the second helical gear stage is coaxially arranged with the first helical gear of the second helical gear stage It is connected in a non-rotatable manner, and wherein the second helical gear of the second helical gear stage meshes with the first helical gear of the second helical gear stage and is coaxially arranged on the pedal shaft. Such a setup also helps provide a compact design for the drive system of an e-bike or moped.

較佳地，電動機的驅動軸垂直於踏板軸。藉此，有助於為緊湊型電動自行車或電動助力車提供驅動系統。 Preferably, the drive shaft of the electric motor is perpendicular to the pedal shaft. This helps provide a drive system for compact electric bicycles or electric mopeds.

較佳地，第一斜齒輪級的第二斜齒輪被設置在電動機和踏板軸之間，特別是在電動機和第二斜齒輪級的第二斜齒輪之間。這也有助於為電動自行車或電動助力車提供具有緊湊設計的驅動系統。 Preferably, the second helical gear of the first helical gear stage is arranged between the electric motor and the pedal shaft, in particular between the electric motor and the second helical gear of the second helical gear stage. This also helps provide a drive system with a compact design for e-bikes or mopeds.

較佳地，正齒輪級的第二齒輪沿電動機和踏板軸及/或在電動機和踏板軸上方部分延伸。這使得驅動系統對於電動自行車或電動助力車的安裝空間需求進一步降低。 Preferably, the second gear of the spur gear stage extends along and/or partially above the motor and pedal shafts. This further reduces the drive system’s installation space requirements for e-bikes or e-mopeds.

較佳地，電動機的沿電動機的驅動軸方向的尺寸最多相當於第一斜齒輪級的第二斜齒輪的直徑及/或最多相當於第二斜齒輪級的第二斜齒輪的直徑。特別是，電動機沿其驅動軸方向的尺寸小於第一斜齒輪級的第二斜齒輪的直徑，且小於第二斜齒輪級的第二斜齒輪的直徑。這也是為電動自行車或電動助力車提供一種具有緊湊設計的驅動系統。 Preferably, the size of the electric motor in the direction of the drive axis of the electric motor is at most equivalent to the diameter of the second helical gear of the first helical gear stage and/or at most the diameter of the second helical gear of the second helical gear stage. In particular, the size of the electric motor in the direction of its drive axis is smaller than the diameter of the second helical gear of the first helical gear stage and smaller than the diameter of the second helical gear of the second helical gear stage. This also provides a drive system with a compact design for electric bicycles or electric mopeds.

較佳地，電動機沿踏板軸方向的尺寸及/或電動機沿垂直於踏板軸且垂直於電動機的驅動軸的方向的尺寸小於正齒輪級的第二齒輪的直徑。這也有助於為電動自行車或電動助力車提供一個設計緊湊的驅動系統。 Preferably, the size of the electric motor in the direction of the pedal axis and/or the size of the electric motor in the direction perpendicular to the pedal axis and perpendicular to the drive axis of the electric motor is smaller than the diameter of the second gear of the spur gear stage. This also helps provide a compactly designed drive system for e-bikes or mopeds.

較佳地，根據本發明的用於電動自行車或電動助力車的驅動系統的齒輪箱具有1：60至1：70的傳動比。 Preferably, the gearbox for the drive system of an electric bicycle or an electric moped according to the present invention has a transmission ratio of 1:60 to 1:70.

10:驅動系統 10:Drive system

11:踏板軸 11:Pedal shaft

12:電動機 12: Electric motor

12a:驅動軸 12a: Drive shaft

13:齒輪箱 13:Gear box

14:正齒輪級、齒輪級 14: Spur gear stage, gear stage

14a:第一齒輪、齒輪 14a: First gear, gear

14b:第二齒輪、齒輪 14b: Second gear, gear

15:第一斜齒輪級、齒輪級 15: First helical gear stage, gear stage

15a:第一斜齒輪、斜齒輪 15a: First helical gear, helical gear

15b:第二斜齒輪、斜齒輪 15b: Second helical gear, helical gear

16:第二斜齒輪級、齒輪級 16: Second helical gear stage, gear stage

16a:第一斜齒輪、斜齒輪 16a: First helical gear, helical gear

16b:第二斜齒輪、斜齒輪 16b: Second helical gear, helical gear

D14b,D15b,D16b:直徑 D14b, D15b, D16b: diameter

X,Y,Z:方向 X,Y,Z: direction

X12,Y12,Z12:尺寸 X12, Y12, Z12: Dimensions

本發明的較佳進一步發展源自於附屬請求項和下文的描述。本發明的實施例將在隨附圖式的基礎上不受限制地進行更詳細的說明，所述圖式繪示： Preferred further developments of the invention result from the dependent claims and the following description. Embodiments of the invention will be described in more detail without limitation on the basis of the accompanying drawing, which shows:

圖1繪示電動自行車或電動助力車的驅動系統的示意性側視圖； Figure 1 shows a schematic side view of a drive system of an electric bicycle or an electric moped;

圖2繪示圖1的驅動系統的示意性俯視圖。 FIG. 2 shows a schematic top view of the drive system of FIG. 1 .

圖1和圖2繪示用於電動自行車或電動助力車的進步性驅動系統10的不同視圖。 Figures 1 and 2 show different views of a progressive drive system 10 for an electric bicycle or electric moped.

驅動系統10具有踏板軸11。踏板軸11與未繪示的曲柄相連，曲柄承載踏板。 The drive system 10 has a pedal shaft 11 . The pedal shaft 11 is connected to a crank (not shown), which carries the pedal.

驅動系統10也具有電動機12。電動機12通過齒輪箱13連接踏板軸11，齒輪箱13連接在電動機12和踏板軸11之間。 The drive system 10 also has an electric motor 12 . The electric motor 12 is connected to the pedal shaft 11 through a gear box 13 , and the gear box 13 is connected between the electric motor 12 and the pedal shaft 11 .

齒輪箱13具有正齒輪級14、第一斜齒輪級15和第二斜齒輪級16。 The gearbox 13 has a spur gear stage 14 , a first helical gear stage 15 and a second helical gear stage 16 .

齒輪箱13的正齒輪級14直接耦接電動機12或主動連接電動機12的驅動軸12a。 The spur gear stage 14 of the gearbox 13 is directly coupled to the electric motor 12 or actively connected to the drive shaft 12 a of the electric motor 12 .

齒輪箱13的第二斜齒輪級16直接耦接或操作連接到踏板軸11。 The second helical gear stage 16 of the gearbox 13 is directly coupled or operatively connected to the pedal shaft 11 .

齒輪箱13的第一斜齒輪級15連接在正齒輪級14和第二斜齒輪級16之間。 The first helical gear stage 15 of the gearbox 13 is connected between the spur gear stage 14 and the second helical gear stage 16 .

正齒輪級14的第一齒輪14a與電動機12的驅動軸12a同軸設置，並以抗扭方式連接驅動軸12a。正齒輪級14的第二齒輪14b與正齒輪級14的第一齒輪14a嚙合。正齒輪級14的第二齒輪14b與第一斜齒輪級15的第一斜齒輪15a同軸設置，並以抗扭方式連接第一斜齒輪15a。第一斜齒輪級15的第二斜齒輪15b與第一斜齒輪級15的第一斜齒輪15a嚙合。第二斜齒輪級16的第一斜齒輪16a與第一斜齒輪級15的第二斜齒輪15b同軸設置，且不可旋轉地相互連接。第二斜齒輪級16的第二斜齒輪16b與第二斜齒輪級16的第一斜齒輪16a嚙合。第二斜齒輪級16的第二斜齒輪16b與踏板軸11同軸設置，並以抗扭方式與踏板軸11操作連接。正齒輪級14的齒輪14a、14b也可以被稱為正齒輪。 The first gear 14a of the spur gear stage 14 is arranged coaxially with the drive shaft 12a of the electric motor 12 and is connected to the drive shaft 12a in a torsionally fixed manner. The second gear 14 b of the spur gear stage 14 meshes with the first gear 14 a of the spur gear stage 14 . The second gear 14b of the spur gear stage 14 is coaxially arranged with the first helical gear 15a of the first helical gear stage 15 and is connected to the first helical gear 15a in a torsionally fixed manner. The second helical gear 15 b of the first helical gear stage 15 meshes with the first helical gear 15 a of the first helical gear stage 15 . The first helical gear 16a of the second helical gear stage 16 and the second helical gear 15b of the first helical gear stage 15 are coaxially arranged and non-rotatably connected to each other. The second helical gear 16 b of the second helical gear stage 16 meshes with the first helical gear 16 a of the second helical gear stage 16 . The second helical gear 16b of the second helical gear stage 16 is coaxially arranged with the pedal shaft 11 and is operatively connected to the pedal shaft 11 in a torsionally fixed manner. The gears 14a, 14b of the spur gear stage 14 can also be referred to as spur gears.

斜齒輪級15、16均為呈90°的斜齒輪級，即斜齒輪級15的斜齒輪15a、15b的旋轉軸相互偏移90°，且第二斜齒輪級16的斜齒輪16a、16b的旋轉軸也相互偏移90°。 The helical gear stages 15 and 16 are both helical gear stages with an angle of 90°, that is, the rotation axes of the helical gears 15a and 15b of the helical gear stage 15 are offset from each other by 90°, and the helical gears 16a and 16b of the second helical gear stage 16 are The axes of rotation are also offset from each other by 90°.

正齒輪級14被設置為由驅動軸12a驅動。第一斜齒輪級15被設計成由正齒輪級14驅動。第二斜齒輪級16被設置為由第一斜齒輪級15驅動，並將驅動扭矩傳送到踏板軸11，該驅動扭矩由電動機12產生，且由齒輪箱13的三個齒輪級14、15和16轉換。 The spur gear stage 14 is arranged to be driven by the drive shaft 12a. The first helical gear stage 15 is designed to be driven by a spur gear stage 14 . The second helical gear stage 16 is arranged to be driven by the first helical gear stage 15 and transmits the drive torque to the pedal shaft 11 , which drive torque is generated by the electric motor 12 and is provided by the three gear stages 14 , 15 of the gearbox 13 and 16 conversions.

圖1和圖2繪示根據本發明的驅動系統10在電動自行車或電動助力車中的安裝位置，其中，X方向對應於電動自行車或電動助力車的水平縱向方向，Y方向對應於電動自行車或電動助力車的水平橫向方向，而Z方向對應於電動自行車或電動助力車的垂直向上方向。 Figures 1 and 2 illustrate the installation position of the drive system 10 according to the present invention in an electric bicycle or an electric moped. The X direction corresponds to the horizontal longitudinal direction of the electric bicycle or the electric moped, and the Y direction corresponds to the electric bicycle or the electric moped The horizontal lateral direction of , while the Z direction corresponds to the vertical upward direction of the electric bicycle or electric moped.

電動機12的驅動軸12a沿電動自行車或電動助力車的Z方向或向上方向延伸。 The drive shaft 12a of the electric motor 12 extends in the Z direction or upward direction of the electric bicycle or electric moped.

電動機12沿踏板軸11在Y方向或電動自行車或電動助力車的橫向方向部分延伸，且沿X方向或電動自行車或電動助力車的縱向方向側向鄰近踏板軸11延伸，較佳地在踏板軸11後方延伸。 The electric motor 12 extends partially along the pedal shaft 11 in the Y direction or the transverse direction of the electric bicycle or electric moped, and extends laterally adjacent to the pedal shaft 11 in the X direction or the longitudinal direction of the electric bicycle or electric moped, preferably behind the pedal shaft 11 extend.

第一斜齒輪級15的第二斜齒輪15b沿X方向或電動自行車或電動助力車的縱向方向被設置在電動機12和踏板軸11之間，即設置在電動機12和第二斜齒輪級16的第二斜齒輪16b之間。 The second helical gear 15b of the first helical gear stage 15 is arranged between the electric motor 12 and the pedal shaft 11 along the X direction or the longitudinal direction of the electric bicycle or electric moped, that is, between the electric motor 12 and the second helical gear stage 16 between the two helical gears 16b.

在電動機12和踏板軸11之間的區域，第一斜齒輪級15的第一斜齒輪15a和第二斜齒輪級16的第一斜齒輪16a係沿X方向或電動自行車或電動助力車的縱向方向被設置在第一斜齒輪級15的第二斜齒輪15b和踏板軸11之間。 In the area between the electric motor 12 and the pedal shaft 11, the first helical gear 15a of the first helical gear stage 15 and the first helical gear 16a of the second helical gear stage 16 are arranged in the X direction or the longitudinal direction of the electric bicycle or electric moped. It is provided between the second helical gear 15b of the first helical gear stage 15 and the pedal shaft 11.

正齒輪級14的第二齒輪14b在電動機12上方和踏板軸11上方沿垂直Z方向延伸，因此在電動自行車或電動助力車的垂直方向上延伸，並與電動機12和踏板軸11部分重疊。 The second gear 14 b of the spur gear stage 14 extends in the vertical Z direction above the electric motor 12 and the pedal shaft 11 , thus extending in the vertical direction of the electric bicycle or electric moped and partially overlapping the electric motor 12 and the pedal shaft 11 .

電動機12沿其驅動軸12a的方向的尺寸Z12，即其沿電動自行車或電動助力車的垂直方向或Z方向的尺寸Z12，最多相當於第一斜齒輪級15的第二斜齒輪15b的直徑D15b且/或最多相當於第二斜齒輪級16的第二斜齒輪16b的直徑D16b。 The dimension Z12 of the electric motor 12 in the direction of its drive shaft 12a, that is, its dimension Z12 in the vertical direction or Z direction of the electric bicycle or electric moped, is at most equivalent to the diameter D15b of the second helical gear 15b of the first helical gear stage 15 and /Or corresponds at most to the diameter D16b of the second helical gear 16b of the second helical gear stage 16.

較佳地，電動機12沿其驅動軸12a方向的尺寸Z12小於第一斜齒輪級15的第二斜齒輪15b的直徑D15b，且小於第二斜齒輪級16的第二斜齒輪16b的直徑D16b。 Preferably, the size Z12 of the electric motor 12 along the direction of its drive shaft 12a is smaller than the diameter D15b of the second helical gear 15b of the first helical gear stage 15, and smaller than the diameter D16b of the second helical gear 16b of the second helical gear stage 16.

電動機12沿踏板軸11的方向的尺寸Y12，即其沿Y方向或電動自行車或電動助力車的橫向方向的尺寸Y12，和/或電動機12沿垂直於踏板軸11且垂直於電動機12的驅動軸12a的方向的尺寸X12，較佳地均小於正齒輪級14的第二齒輪14b的直徑D14b。特別地，電動機12的尺寸Y12和尺寸X12是相同的尺寸，且相當於電動機12的直徑。 The dimension Y12 of the electric motor 12 along the direction of the pedal axis 11 , that is, its dimension Y12 along the Y direction or the transverse direction of the electric bicycle or electric moped, and/or the dimension Y12 of the electric motor 12 along the direction perpendicular to the pedal axis 11 and perpendicular to the drive shaft 12 a of the electric motor 12 The dimensions X12 in the directions are preferably smaller than the diameter D14b of the second gear 14b of the spur gear stage 14 . In particular, the dimensions Y12 and X12 of the motor 12 are the same size and correspond to the diameter of the motor 12 .

電動機12沿其驅動軸12a的方向的尺寸Z12，即其沿Z方向或電動自行車或電動助力車的向上方向的尺寸Z12，特別是為40±4毫米或45±5毫米。 The dimension Z12 of the electric motor 12 in the direction of its drive shaft 12a, ie its dimension Z12 in the Z direction or the upward direction of the electric bicycle or electric moped, is in particular 40±4 mm or 45±5 mm.

特別地，電動機12沿垂直於電動機12的驅動軸12a的方向的尺寸Y12和X12為60±6毫米。 In particular, the dimensions Y12 and X12 of the electric motor 12 in the direction perpendicular to the drive shaft 12a of the electric motor 12 are 60±6 mm.

特別地，第一斜齒輪級15的第二斜齒輪15b的直徑D15b和第二斜齒輪級16的第二斜齒輪16b的直徑D16b為50±5毫米。 In particular, the diameter D15b of the second helical gear 15b of the first helical gear stage 15 and the diameter D16b of the second helical gear 16b of the second helical gear stage 16 are 50±5 mm.

特別地，正齒輪級14的第二齒輪14b的直徑D14b為80±8毫米。 In particular, the diameter D14b of the second gear 14b of the spur gear stage 14 is 80±8 mm.

特別地，正齒輪級14的第一齒輪14b的直徑為10±1毫米。 In particular, the diameter of the first gear 14b of the spur gear stage 14 is 10±1 mm.

特別地，第一斜齒輪級15的第一斜齒輪15a的直徑和第二斜齒輪級16的第一斜齒輪16a的直徑為20±2毫米。 In particular, the diameter of the first helical gear 15a of the first helical gear stage 15 and the diameter of the first helical gear 16a of the second helical gear stage 16 is 20±2 mm.

提供給電動自行車或電動助力車的驅動系統10的尺寸在X方向可為125±13毫米，在Z方向可為55±5毫米或60±6毫米，且在Y方向可為80±8毫米。 The dimensions of the drive system 10 provided for the electric bicycle or electric moped may be 125±13 mm in the X direction, 55±5 mm or 60±6 mm in the Z direction, and 80±8 mm in the Y direction.

特別地，齒輪箱13的傳動比在1：60和1：70之間，較佳為1：65。 In particular, the transmission ratio of the gearbox 13 is between 1:60 and 1:70, preferably 1:65.

驅動系統10結構緊湊，只需要很小的安裝空間。它有三個齒輪級14、15和16。驅動系統10不會破壞電動自行車或電動助力車的整體美觀。 The drive system 10 has a compact structure and requires only a small installation space. It has three gear stages 14, 15 and 16. The drive system 10 does not spoil the overall aesthetics of the electric bicycle or electric moped.

較佳地，驅動系統10用於具有液壓剎車系統的電動自行車或電動助力車。 Preferably, the drive system 10 is used for an electric bicycle or an electric moped with a hydraulic brake system.

10:驅動系統 10:Drive system

11:踏板軸 11:Pedal shaft

12:電動機 12: Electric motor

12a:驅動軸 12a: Drive shaft

13:齒輪箱 13:Gear box

14:正齒輪級、齒輪級 14: Spur gear stage, gear stage

14a:第一齒輪、齒輪 14a: First gear, gear

14b:第二齒輪、齒輪 14b: Second gear, gear

15:第一斜齒輪級、齒輪級 15: First helical gear stage, gear stage

15a:第一斜齒輪、斜齒輪 15a: First helical gear, helical gear

15b:第二斜齒輪、斜齒輪 15b: Second helical gear, helical gear

16:第二斜齒輪級、齒輪級 16: Second helical gear stage, gear stage

16a:第一斜齒輪、斜齒輪 16a: First helical gear, helical gear

16b:第二斜齒輪、斜齒輪 16b: Second helical gear, helical gear

D14b,D15b,D16b:直徑 D14b, D15b, D16b: diameter

X,Z:方向 X, Z: direction

X12,Z12:尺寸 X12, Z12: size

Claims (10)

一種電動自行車或電動助力車之驅動系統(10)， A driving system (10) for an electric bicycle or an electric moped, 具有踏板軸(11)， With pedal shaft (11), 具有與該踏板軸(11)操作連接的電動機(12)， having an electric motor (12) operatively connected to the pedal shaft (11), 具有齒輪箱(13)，該齒輪箱(13)連接於該電動機(12)和該踏板軸(11)之間， There is a gearbox (13) connected between the electric motor (12) and the pedal shaft (11), 其中，該齒輪箱(13)具有正齒輪級(14)、第一斜齒輪級(15)和第二斜齒輪級(16)， Wherein, the gearbox (13) has a spur gear stage (14), a first helical gear stage (15) and a second helical gear stage (16), 其中，該正齒輪級(14)直接與該電動機(12)操作連接， Wherein, the spur gear stage (14) is directly operatively connected to the electric motor (12), 其中，該第二斜齒輪級(16)直接與該踏板軸(11)操作連接， Wherein, the second helical gear stage (16) is directly operatively connected to the pedal shaft (11), 其中，該第一斜齒輪級(15)連接於該正齒輪級(14)和該第二斜齒輪級(16)之間。 Wherein, the first helical gear stage (15) is connected between the spur gear stage (14) and the second helical gear stage (16). 如請求項1所述之驅動系統，其中， The drive system as described in claim 1, wherein, 該電動機(12)沿該踏板軸(11)及/或側向鄰近該踏板軸(11)而部分延伸。 The electric motor (12) partially extends along the pedal shaft (11) and/or laterally adjacent the pedal shaft (11). 如請求項1或2所述之驅動系統，其中， The drive system as described in claim 1 or 2, wherein, 該正齒輪級(14)的第一齒輪(14a)與該電動機(12)的驅動軸(12a)同軸設置， The first gear (14a) of the spur gear stage (14) is coaxially arranged with the drive shaft (12a) of the electric motor (12), 該正齒輪級(14)的第二齒輪(14b)與該正齒輪級(14)的該第一齒輪(14a)嚙合，且該第一斜齒輪級(15)的第一斜齒輪(15a)與該正齒輪級(14)的該第二齒輪(14b)同軸設置且不可旋轉地相互連接， The second gear (14b) of the spur gear stage (14) meshes with the first gear (14a) of the spur gear stage (14), and the first helical gear (15a) of the first helical gear stage (15) coaxially arranged with the second gear (14b) of the spur gear stage (14) and non-rotatably connected to each other, 該第一斜齒輪級(15)的該第二斜齒輪(15b)與該第一斜齒輪級(15)的該第一斜齒輪(15a)嚙合，且該第二斜齒輪級(16)的第一斜齒輪(16a)與該第一斜齒輪級(15)的該第二斜齒輪(15b)同軸設置且不可旋轉地相互連接， The second helical gear (15b) of the first helical gear stage (15) meshes with the first helical gear (15a) of the first helical gear stage (15), and the second helical gear stage (16) The first helical gear (16a) and the second helical gear (15b) of the first helical gear stage (15) are coaxially arranged and non-rotatably connected to each other, 與該第二斜齒輪級(16)的該第一斜齒輪(16a)嚙合的該第二斜齒輪級(16)的第二斜齒輪(16b)係與該踏板軸(11)同軸設置。 The second helical gear (16b) of the second helical gear stage (16) meshing with the first helical gear (16a) of the second helical gear stage (16) is coaxially arranged with the pedal shaft (11). 如請求項3所述之驅動系統，其中， The drive system as described in claim 3, wherein, 該電動機(12)的該驅動軸(12a)垂直於該踏板軸(11)。 The drive shaft (12a) of the electric motor (12) is perpendicular to the pedal shaft (11). 如請求項3或4所述之驅動系統，其中， The drive system as described in claim 3 or 4, wherein, 該第一斜齒輪級(15)的該第二斜齒輪(15b)被設置在該電動機(12)和該踏板軸(11)之間。 The second helical gear (15b) of the first helical gear stage (15) is arranged between the electric motor (12) and the pedal shaft (11). 如請求項3至5中任一項所述之驅動系統，其中， The drive system as described in any one of claims 3 to 5, wherein, 該正齒輪級(14)的該第二齒輪(14b)沿該電動機(12)和該踏板軸(11)及/或在該電動機(12)和該踏板軸(11)的上方部分延伸。 The second gear (14b) of the spur gear stage (14) extends along the electric motor (12) and the pedal shaft (11) and/or in an upper portion of the electric motor (12) and the pedal shaft (11). 如請求項3至6中任一項所述之驅動系統，其中， The drive system according to any one of claims 3 to 6, wherein, 該電動機(12)的沿該電動機(12)的該驅動軸(12a)的方向的尺寸最多相當於該第一斜齒級(15)的該第二斜齒輪(15b)的直徑及/或最多相當於該第二斜齒輪級(16)的該第二斜齒輪(16b)的直徑。 The size of the electric motor (12) in the direction of the drive shaft (12a) of the electric motor (12) is at most equivalent to the diameter of the second helical gear (15b) of the first helical gear stage (15) and/or is at most Corresponds to the diameter of the second helical gear (16b) of the second helical gear stage (16). 如請求項3至7中任一項所述之驅動系統，其中， The drive system according to any one of claims 3 to 7, wherein, 該電動機(12)的沿該踏板軸(11)的方向的尺寸及/或該電動機(12)的沿垂直於該踏板軸(11)且垂直於該電動機(12)的該驅動軸(12a)的方向的尺寸均小於該正齒輪級(14)的該第二齒輪(14b)的直徑。 The size of the electric motor (12) along the direction of the pedal axis (11) and/or the dimension of the electric motor (12) along the drive shaft (12a) perpendicular to the pedal axis (11) and perpendicular to the electric motor (12) The dimensions in the directions are smaller than the diameter of the second gear (14b) of the spur gear stage (14). 如請求項1至8中任一項所述之驅動系統，其中， The drive system according to any one of claims 1 to 8, wherein, 該第一斜齒輪級(15)為呈90°的斜齒輪級， The first helical gear stage (15) is a 90° helical gear stage, 該第二斜齒輪級(16)為呈90°的斜齒輪級。 The second helical gear stage (16) is a 90° helical gear stage. 如請求項1至9中任一項所述之驅動系統，其中， The drive system according to any one of claims 1 to 9, wherein, 該齒輪箱(12)的傳動比在1：60和1：70之間。 The gearbox (12) has a transmission ratio between 1:60 and 1:70.
TW112110739A 2022-04-07 2023-03-22 A driving system for an e-bike or a pedelec TW202346159A (en)

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