TW202402614A - Drive system for an e-bike or pedelec - Google Patents

Drive system for an e-bike or pedelec Download PDF

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TW202402614A
TW202402614A TW112106509A TW112106509A TW202402614A TW 202402614 A TW202402614 A TW 202402614A TW 112106509 A TW112106509 A TW 112106509A TW 112106509 A TW112106509 A TW 112106509A TW 202402614 A TW202402614 A TW 202402614A
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Taiwan
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gear stage
spur gear
drive system
helical gear
electric
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TW112106509A
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Chinese (zh)
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米克爾 弗里
史蒂芬 本德
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德國商保時捷電動自行車性能有限公司
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Publication of TW202402614A publication Critical patent/TW202402614A/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
    • B62M11/06—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with spur gear wheels
    • 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)

Abstract

Drive system (10) for an e-bike or pedelec, having a pedal shaft (11), having an electric machine (12) which is operatively connected to the pedal shaft (11), having a transmission (13), the transmission (13) being connected between the electric machine (12) and the pedal shaft (11), the transmission (13) having a first spur gear stage (14), a second spur gear stage (15) and a bevel gear stage (16), wherein the first spur gear stage (14) is directly operatively connected to the electric machine (12), wherein the bevel gear stage (16) is directly operatively connected to the pedal shaft (11), and wherein the second spur gear stage (15) is connected between the first spur gear stage (14) and the 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

本發明係關於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.

在自行車的驅動系統中，無論是傳統自行車、電動自行車或電動助力車都具有踏板軸，且踏板曲柄與踏板軸可操作地連接。踏板曲柄具有踏板，且自行車騎士藉由踩踏板用腳支撐自己。電動自行車或電動助力車之驅動系統還具有電機機械，電機機械也可操作地連接於踏板軸。變速器可以連接於電機機械和踏板軸之間。 In the driving system of a bicycle, whether it is a traditional bicycle, an electric bicycle or an electric moped, there is a pedal shaft, and the pedal crank is operatively connected to the pedal shaft. The pedal crank has pedals, and the cyclist supports himself with his feet by pedaling. The drive system of the electric bicycle or electric moped also has an electric machine, which is also operably connected to the pedal shaft. The transmission can be connected between the motor mechanism and the pedal shaft.

已知的電動自行車或電動助力車之驅動系統所需的安裝空間很大。如此會損害電動自行車或電動助力車的整體美感。 The drive systems of known electric bicycles or electric mopeds require a large installation space. This will detract from the overall aesthetics of the e-bike or moped.

JP 3700773 B2公開了一種電動自行車或電動助力車之驅動系統，其中，變速器係連接於電機機械和踏板軸之間，並且其中，變速器包括正齒輪級(spur gear stage)和斜齒輪級(bevel gear stage)。 JP 3700773 B2 discloses a driving system for an electric bicycle or an electric moped, in which a transmission is connected between the motor machine and the pedal shaft, and wherein the transmission includes a spur gear stage and a bevel gear stage. ).

由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可知其他電動自行車或電動助力車之驅動系統。 The driving systems of other electric bicycles or electric mopeds can be known 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一種新的緊湊型驅動系統。本發明的目的在於提供一種電動自行車或電動助力車之驅動系統。 Electric bicycles or e-mopeds require a new compact drive system. The object of the present invention is to provide a driving system for an electric bicycle or an electric moped.

該目的係藉由請求項1所述的電動自行車或電動助力車之驅動系統來實現。 This object is achieved by the drive system of the electric bicycle or electric moped described in claim 1.

根據本發明的驅動系統係包括：踏板軸、可操作地連接踏板軸的電機機械、及變速器，其中，變速器係連接於電機機械和踏板軸之間。根據本發明的驅動系統的變速器係包括第一正齒輪級、第二正齒輪級和斜齒輪級，其中，第一正齒輪級係直接可操作地連接到電機機械，且斜齒輪級係直接可操作地連接到踏板軸，並且其中，第二正齒輪級係連接於第一正齒輪級和斜齒輪級之間。 The drive system according to the present invention includes: a pedal shaft, an electric machine operatively connected to the pedal shaft, and a transmission, wherein the transmission is connected between the electric machine and the pedal shaft. The transmission train of the drive system according to the invention includes a first spur gear stage, a second spur gear stage and a helical gear stage, wherein the first spur gear stage is directly operatively connected to the electric machine and the helical gear stage is directly operatively connected to the electromechanical machine. operatively connected to the pedal shaft, and wherein the second spur gear stage is connected between the first spur gear stage and the helical gear stage.

在本發明的驅動系統中，變速器具有第一正齒輪級、第二正齒輪級和斜齒輪級。本發明的電動自行車或電動助力車之驅動系統的特徵在於緊湊的設計。 In the drive system of the invention, the transmission has a first spur gear stage, a second spur gear stage and a helical gear stage. The drive system of the electric bicycle or electric moped of the present invention is characterized by a compact design.

較佳地，電機機械係部分地沿著踏板軸延伸，及/或側向地延伸到踏板軸的旁邊。如此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 electromechanical system extends partially along the pedal shaft and/or extends laterally to the side of the pedal shaft. This also helps provide a drive system with a compact design for electric bicycles or electric mopeds.

較佳地，第一正齒輪級的第一齒輪與該電機機械的驅動軸佈置成彼此同軸，其中，與第一正齒輪級的第一齒輪嚙合的第一正齒輪級的第二齒輪和第二正齒輪級的第一齒輪佈置成彼此同軸且不可旋轉地連接，與第二正齒輪級的第一齒輪嚙合的第二正齒輪級的第二齒輪和斜齒輪級的第一斜齒輪佈置成彼此同軸且不可旋轉地連接，與斜齒輪級的第一斜齒輪嚙合的斜齒輪級的第二斜 齒輪和踏板軸佈置成彼此同軸。這樣的配置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 first gear of the first spur gear stage and the drive shaft of the electromechanical machine are arranged coaxially with each other, wherein the second gear of the first spur gear stage and the second gear of the first spur gear stage mesh with the first gear of the first spur gear stage. The first gears of the two spur gear stages are arranged to be coaxially and non-rotatably connected to each other, the second gear of the second spur gear stage meshing with the first gear of the second spur gear stage and the first helical gear of the helical gear stage are arranged to Coaxially and non-rotatably connected to each other, the second helical gear of the helical gear stage meshes with the first helical gear of the helical gear stage The gear and pedal shaft are arranged coaxially with each other. Such a configuration also helps provide a drive system with a compact design for an electric bicycle or electric moped.

較佳地，電機機械的驅動軸係垂直於踏板軸。這是較佳的方案，從而可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 drive shaft of the motor machine is perpendicular to the pedal axis. This is the preferred solution and provides a drive system with a compact design for an electric bicycle or electric moped.

較佳地，第一正齒輪級的第二齒輪係部分地沿著電機機械及/或在電機機械上方延伸。較佳地，第二正齒輪級的第二齒輪係部分地沿著踏板軸及/或在踏板軸上方延伸，並且部分地沿著第一正齒輪級的第二齒輪及/或在第一正齒輪級的第二齒輪上方延伸。如此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 gear train of the first spur gear stage extends partially along and/or above the electromechanical machine. Preferably, the second gear train of the second spur gear stage extends partly along and/or above the pedal axis and partly along the second gear of the first spur gear stage and/or above the first spur gear stage. Extends above the second gear of the gear stage. This also helps provide a drive system with a compact design for electric bicycles or electric mopeds.

較佳地，第一正齒輪級的第二齒輪和第二正齒輪級的第二齒輪彼此重疊。如此可以進一步降低電動自行車或電動助力車之驅動系統所需的安裝空間。 Preferably, the second gear of the first spur gear stage and the second gear of the second spur gear stage overlap each other. This can further reduce the installation space required for the drive system of the electric bicycle or electric moped.

較佳地，電機機械在驅動軸方向上的尺寸小於斜齒輪級的第二斜齒輪的直徑。特別是，電機機械在驅動軸方向上的尺寸與第一正齒輪級的軸向厚度的總和小於等於斜齒輪級的第二斜齒輪的直徑。如此可以進一步降低電動自行車或電動助力車之驅動系統所需的安裝空間。 Preferably, the dimensions of the electromechanical machine in the direction of the drive axis are smaller than the diameter of the second helical gear of the helical gear stage. In particular, the sum of the dimensions of the electromechanical machine in the drive axis direction and the axial thickness of the first spur gear stage is less than or equal to the diameter of the second helical gear of the helical gear stage. This can further reduce the installation space required for the drive system of the electric bicycle or electric moped.

較佳地，第二正齒輪級的第二齒輪的直徑小於電機機械在踏板軸方向上的尺寸，及/或小於等於電機機械在垂直於踏板軸和電機機械的驅動軸的方向上的尺寸。如此可以進一步降低電動自行車或電動助力車之驅動系統所需的安裝空間。 Preferably, the diameter of the second gear of the second spur gear stage is smaller than the size of the motor machine in the direction of the pedal axis, and/or is smaller than or equal to the size of the motor machine in the direction perpendicular to the pedal shaft and the drive shaft of the motor machine. This can further reduce the installation space required for the drive system of the electric bicycle or electric moped.

較佳地，斜齒輪級的第二斜齒輪的直徑小於第二正齒輪級的第二齒輪的直徑。如此可以進一步降低電動自行車或電動助力車之驅動系統所需的安裝空間。 Preferably, the diameter of the second helical gear of the helical gear stage is smaller than the diameter of the second gear of the second spur gear stage. This can further reduce the installation space required for the drive system of the electric bicycle or electric moped.

較佳地，變速器的傳動比係在1：40和1：50之間。 Preferably, the transmission ratio of the transmission is between 1:40 and 1:50.

10:電動自行車或電動助力車之驅動系統、驅動系統 10: Drive system and driving system of electric bicycle or electric moped

11:踏板軸 11:Pedal shaft

12:電機機械 12:Electrical machinery

12a:驅動軸 12a: Drive shaft

13:變速器 13:Transmission

14:第一正齒輪級 14: First spur gear stage

14a:第一齒輪 14a: First gear

14b:第二齒輪 14b: Second gear

15:第二正齒輪級 15: Second spur gear stage

15a:第一齒輪 15a: First gear

15b:第二齒輪 15b:Second gear

16:斜齒輪級 16: Helical gear stage

16a:第一斜齒輪 16a: First helical gear

16b:第二斜齒輪 16b: Second helical gear

D14b:直徑 D14b: diameter

D15b:直徑 D15b: diameter

D16b:直徑 D16b: diameter

X12:尺寸 X12: size

Z12:尺寸 Z12: Dimensions

X:方向 X: direction

Y:方向 Y: direction

Z:方向 Z: direction

本發明較佳的進一步發展源自附屬項和以下描述。將基於所附圖式對本發明的實施例進行更詳細的說明，但並不限於此。圖式係表示： Preferred further developments of the invention result from the appended claims and the following description. The embodiments of the present invention will be described in more detail based on the accompanying drawings, but are not limited thereto. Schematic representation:

圖1係表示電動自行車或電動助力車之驅動系統的示意性側視圖；以及 Figure 1 is a schematic side view showing the driving system of an electric bicycle or an electric moped; and

圖2係表示圖1的驅動系統的示意性側視圖。 FIG. 2 is a schematic side view of the drive system of FIG. 1 .

圖1及圖2係表示根據本發明的電動自行車之驅動系統10的不同視圖，其中，X方向係對應於電動自行車或電動助力車的水平縱向方向，Y方向係對應於電動自行車或電動助力車的水平橫向方向，並且Z方向係對應於電動自行車或電動助力車的垂直方向。 1 and 2 show different views of the driving system 10 of an electric bicycle according to the present invention, in which the X direction corresponds to the horizontal longitudinal direction of the electric bicycle or the electric moped, and the Y direction corresponds to the horizontal direction of the electric bicycle or the electric moped. The lateral direction, and the Z direction corresponds to the vertical direction of the electric bicycle or electric moped.

驅動系統10係具有踏板軸11。承載踏板的踏板曲柄(未示出)係可操作地連接到踏板軸11。電動自行車或電動助力車的騎士藉由踩在踩踏板上來支撐自己。 The drive system 10 has a pedal shaft 11 . A pedal crank (not shown) carrying the pedal is operatively connected to the pedal shaft 11 . The rider of an electric bicycle or moped supports himself or herself by stepping on the pedals.

驅動系統10還具有電機機械12，電機機械12也可操作地連接踏板軸11。另外，驅動系統10係具有變速器13，其中，變速器13係連接於電機機械12和踏板軸11之間。 The drive system 10 also has an electromechanical mechanism 12 which is also operably connected to the pedal shaft 11 . In addition, the drive system 10 has a transmission 13 , wherein the transmission 13 is connected between the electric machine 12 and the pedal shaft 11 .

變速器13係具有第一正齒輪級14、第二正齒輪級15和斜齒輪級16。 The transmission 13 has a first spur gear stage 14 , a second spur gear stage 15 and a helical gear stage 16 .

第一正齒輪級14係直接可操作地連接或耦合到電機機械12，即驅動軸12a。斜齒輪級16係直接可操作地連接或耦合到踏板軸11。第二正齒輪級15係連接於第一正齒輪級14和斜齒輪級16之間。 The first spur gear stage 14 is directly operatively connected or coupled to the electromechanical machine 12, namely the drive shaft 12a. The helical gear stage 16 is directly operatively connected or coupled to the pedal shaft 11 . The second spur gear stage 15 is connected between the first spur gear stage 14 and the helical gear stage 16 .

第一正齒輪級14的第一齒輪14a和電機機械12的驅動軸12a佈置成彼此同軸並且以抗扭矩的方式連接到驅動軸12a。與第一正齒輪級14的第一齒輪14a嚙合的第一正齒輪級14的第二齒輪14b和第二正齒輪級15的第一齒輪15a佈置成彼此同軸且不可旋轉地連接。與第二正齒輪15的第一齒輪15a嚙合的第二正齒輪15的第二齒輪15b和斜齒輪16的第一斜齒輪16a佈置成彼此同軸且不可旋轉地連接。與斜齒輪級16的第一斜齒輪16a嚙合的斜齒輪級16的第二斜齒輪16b和踏板軸11佈置成彼此同軸並且以抗扭矩的方式可操作地連接到踏板軸11。 The first gear 14a of the first spur gear stage 14 and the drive shaft 12a of the electromechanical machine 12 are arranged coaxially with each other and are connected to the drive shaft 12a in a torque-proof manner. The second gear 14b of the first spur gear stage 14 and the first gear 15a of the second spur gear stage 15, which mesh with the first gear 14a of the first spur gear stage 14, are arranged to be coaxially and non-rotatably connected to each other. The second gear 15b of the second spur gear 15 and the first helical gear 16a of the helical gear 16, which mesh with the first gear 15a of the second spur gear 15, are arranged to be coaxially and non-rotatably connected to each other. The second helical gear 16b of the helical gear stage 16 meshing with the first helical gear 16a of the helical gear stage 16 and the pedal shaft 11 are arranged coaxially with each other and are operatively connected to the pedal shaft 11 in a torque-resistant manner.

兩個正齒輪級14、15的所有齒輪14a、14b、15a、15b的轉軸係與電機機械12的驅動軸12a同軸或平行地運行。驅動軸12a係垂直於踏板軸11運行。 The rotational shaft systems of all gears 14a, 14b, 15a, 15b of the two spur gear stages 14, 15 run coaxially or parallel to the drive shaft 12a of the electromechanical machine 12. The drive shaft 12a runs perpendicularly to the pedal shaft 11.

電機機械12的驅動軸12a和正齒輪級的齒輪14a、14b、15a、15b的轉軸係沿著Z方向延伸，即沿著電動自行車或電動助力車的上下方向延伸。踏板軸11係沿著Y方向延伸，即沿著電動自行車或電動助力車的水平方向延伸。 The rotating shaft system of the drive shaft 12a of the motor machine 12 and the spur gear stage gears 14a, 14b, 15a, 15b extends along the Z direction, that is, extends along the up and down direction of the electric bicycle or electric moped. The pedal shaft 11 extends along the Y direction, that is, along the horizontal direction of the electric bicycle or electric moped.

類似地，斜齒輪級16的第二斜齒輪16b的旋轉方向也沿著電動自行車或電動助力車的橫向延伸。兩個斜齒輪16a、16b的旋轉軸線相互錯開90°，從而使斜齒輪級16形成為90°斜齒輪級。 Similarly, the direction of rotation of the second helical gear 16b of the helical gear stage 16 also extends transversely of the electric bicycle or electric moped. The rotational axes of the two helical gears 16a, 16b are offset from each other by 90°, so that the helical gear stage 16 is formed as a 90° helical gear stage.

電機機械12係部分地沿著Y方向，即沿著電動自行車或電動助力車的橫向方向延伸，及/或沿著X方向，即沿著電動自行車或電動助力車的縱向方向側向地延伸到踏板軸11的旁邊，特別是踏板軸11的後面。 The electromechanical mechanism 12 extends partially along the Y direction, ie along the transverse direction of the electric bicycle or electric moped, and/or extends laterally to the pedal axis along the X direction, ie along the longitudinal direction of the electric bicycle or electric moped. 11, especially behind the pedal shaft 11.

電機機械12在驅動軸12a的方向上的尺寸Z12，即電動自行車或電動助力車的Z方向或向上方向的尺寸Z12，至多對應於斜齒輪級16的第二斜齒輪16的直徑D16b。特別是，電機機械12在驅動軸12a的方向上具有同樣的尺寸Z12，其小於斜齒輪級16的第二斜齒輪16b的斜齒輪16b的直徑D16b。 The dimension Z12 of the electromechanical machine 12 in the direction of the drive shaft 12 a , ie in the Z direction or upward direction of the electric bicycle or moped, corresponds at most to the diameter D16 b of the second helical gear 16 of the helical gear stage 16 . In particular, the electromechanical machine 12 has the same dimension Z12 in the direction of the drive shaft 12a, which is smaller than the diameter D16b of the helical gear 16b of the second helical gear 16b of the helical gear stage 16.

較佳地，電機機械12在電機機械12的驅動軸12a的方向上的尺寸與第一正齒輪級14的軸向厚度的總和小於斜齒輪級16的第二斜齒輪16b的直徑D16b或與其相等。 Preferably, the sum of the size of the electromechanical machine 12 in the direction of the drive shaft 12a of the electromechanical machine 12 and the axial thickness of the first spur gear stage 14 is smaller than or equal to the diameter D16b of the second helical gear 16b of the helical gear stage 16 .

第一正齒輪級14的第二齒輪14b係部分地沿著電機機械12在其上方延伸。第二正齒輪級15的第二齒輪15b係部分地沿著踏板軸11在其上方延伸，其中，兩個正齒輪級14、15的兩個第二齒輪14b、15b部分地重疊。 The second gear 14 b of the first spur gear stage 14 extends partially along the electromechanical machine 12 above it. The second gear wheel 15 b of the second spur gear stage 15 extends partially along the pedal shaft 11 above it, wherein the two second gear wheels 14 b , 15 b of the two spur gear stages 14 , 15 partially overlap.

斜齒輪級16的第二斜齒輪16b的直徑D16b小於第二正齒輪級15的第二斜齒輪15b的直徑D15b。 The diameter D16 b of the second helical gear 16 b of the helical gear stage 16 is smaller than the diameter D15 b of the second helical gear 15 b of the second spur gear stage 15 .

第一正齒輪級14的第二齒輪14的直徑D14b小於第二正齒輪級15的第二齒輪15b的直徑D15b，並且還小於斜齒輪級16的第二斜齒輪16b的直徑D16b。 The diameter D14 b of the second gear 14 of the first spur gear stage 14 is smaller than the diameter D15 b of the second gear 15 b of the second spur gear stage 15 and is also smaller than the diameter D16 b of the second helical gear 16 b of the helical gear stage 16 .

在電動自行車或電動助力車的Z方向上，第一正齒輪級14設置在電機機械12和第二正齒輪級15之間。在電動自行車或電動助力車的X方向上，斜齒輪級16設置在電機機械12和第一正齒輪級14的旁邊。在電動自行車或電動助力車的Z方向上，第二正齒輪級15設置在斜齒輪級16上方。 In the Z direction of the electric bicycle or electric moped, the first spur gear stage 14 is arranged between the electromechanical mechanism 12 and the second spur gear stage 15 . In the X direction of the electric bicycle or moped, the helical gear stage 16 is arranged next to the electromechanical mechanism 12 and the first spur gear stage 14 . In the Z direction of the electric bicycle or electric moped, the second spur gear stage 15 is arranged above the helical gear stage 16 .

第一正齒輪級14係配置成藉由電機機械12的驅動軸12a而驅動。第二正齒輪級15係配置成藉由第一正齒輪級14而驅動。斜齒輪級16係配置成由第二正齒輪級15驅動並將驅動扭矩傳遞到踏板軸11，該驅動扭矩係由電機機械11產生並由變速器13轉換，即三個齒輪級14、15、16。 The first spur gear stage 14 is configured to be driven by the drive shaft 12 a of the electromechanical machine 12 . The second spur gear stage 15 is configured to be driven by the first spur gear stage 14 . The helical gear stage 16 is configured to be driven by the second spur gear stage 15 and transmit the driving torque generated by the electromechanical system 11 and converted by the transmission 13 to the pedal shaft 11 , that is, three gear stages 14 , 15 , 16 .

電機機械12在電動自行車或電動助力車的縱向方向上的尺寸X12和在電動自行車或電動助力車的橫向方向上的尺寸特別是70±7mm。電機機械12的這些尺寸特別是相同尺寸並且特別對是應於電機機械12的直徑。 The dimension X12 of the electric machine 12 in the longitudinal direction of the electric bicycle or electric moped and in the transverse direction of the electric bicycle or electric moped are in particular 70 ± 7 mm. These dimensions of the electromechanical device 12 are in particular identical dimensions and correspond in particular to the diameter of the electromechanical device 12 .

電機機械12的尺寸Z12為在電機機械12的驅動軸12a的方向上的尺寸，即在電動自行車或電動助力車的垂直方向上的尺寸，其特別是40±4mm或45±5mm。 The dimension Z12 of the electromechanical machine 12 is the dimension in the direction of the drive shaft 12a of the electromechanical machine 12, ie in the vertical direction of the electric bicycle or electric moped, which is in particular 40±4 mm or 45±5 mm.

斜齒輪級16的第二斜齒輪16b的直徑D16b特別是50±5mm。 The diameter D16b of the second helical gear 16b of the helical gear stage 16 is in particular 50±5 mm.

第二正齒輪級15的第二齒輪15b的直徑D15b特別是65±7mm，並且第一正齒輪級14的第二齒輪14b的直徑D14b特別是35±4mm。 The diameter D15b of the second gear 15b of the second spur gear stage 15 is in particular 65±7 mm, and the diameter D14b of the second gear 14b of the first spur gear stage 14 is in particular 35±4 mm.

兩個正齒輪級14、15的第一齒輪14a、15a的直徑特別是10±1mm。 The diameter of the first gears 14a, 15a of the two spur gear stages 14, 15 is in particular 10±1 mm.

斜齒輪級16的第一斜齒輪16a的直徑特別是20±2mm。 The diameter of the first helical gear 16a of the helical gear stage 16 is in particular 20±2 mm.

可以提供用於電動自行車或電動助力車之驅動系統10，其在X方向上具有127±13mm的尺寸，在Z方向上具有60±6mm的尺寸，並且在Y方向上具有70±7mm的尺寸。 The drive system 10 for an electric bicycle or electric moped may be provided with dimensions of 127±13 mm in the X direction, 60±6 mm in the Z direction, and 70±7 mm in the Y direction.

特別是，變速器13具有1：40和1：50之間的傳動比，較佳地為1：42。 In particular, the transmission 13 has a transmission ratio between 1:40 and 1:50, preferably 1:42.

驅動系統10是緊湊的且所需的安裝空間小。驅動系統10具有三個齒輪級14、15、16。驅動系統10不會損害電動自行車或電動助力車的整體美感。 The drive system 10 is compact and requires little installation space. The drive system 10 has three gear stages 14, 15, 16. The drive system 10 does not detract from the overall aesthetics of the electric bicycle or moped.

較佳地，驅動系統10係用於具有液壓制動系統(hydraulic braking system)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 braking system.

10:電動自行車或電動助力車之驅動系統、驅動系統 10: Drive system and driving system of electric bicycle or electric moped

11:踏板軸 11:Pedal shaft

12:電機機械 12:Electrical machinery

13:變速器 13:Transmission

14a:第一齒輪 14a: First gear

14b:第二齒輪 14b: Second gear

15a:第一齒輪 15a: First gear

15b:第二齒輪 15b:Second gear

16a:第一斜齒輪 16a: First helical gear

16b:第二斜齒輪 16b: Second helical gear

D16b:直徑 D16b: diameter

X:方向 X: direction

Y:方向 Y: direction

Claims (11)

一種電動自行車或電動助力車之驅動系統(10)，該驅動系統係具有： A driving system (10) for an electric bicycle or an electric moped. The driving system has: 踏板軸(11)； pedal shaft(11); 電機機械(12)，係能操作地連接該踏板軸(11)；以及 an electric machine (12) operatively connected to the pedal shaft (11); and 變速器(13)，其中，該變速器(13)係連接於該電機機械(12)和該踏板軸(11)之間， Transmission (13), wherein the transmission (13) is connected between the electric machine (12) and the pedal shaft (11), 其中，該變速器(13)係包括第一正齒輪級(14)、第二正齒輪級(15)和斜齒輪級(16)， Wherein, the transmission (13) includes a first spur gear stage (14), a second spur gear stage (15) and a helical gear stage (16), 其中，該第一正齒輪級(14)係直接能操作地連接到該電機機械(12)， wherein the first spur gear stage (14) is directly operatively connected to the electromechanical machine (12), 其中，該斜齒輪級(16)係直接能操作地連接到該踏板軸(11)， wherein the helical gear stage (16) is directly operatively connected to the pedal shaft (11), 其中，該第二正齒輪級(15)係連接於該第一正齒輪級(14)和該斜齒輪級(16)之間。 Wherein, the second spur gear stage (15) is connected between the first spur gear stage (14) and the helical gear stage (16). 如請求項1所述之驅動系統，其特徵在於， The drive system according to claim 1, characterized in that, 該電機機械(12)係部分地沿著該踏板軸(11)延伸，及/或側向地延伸到該踏板軸(11)的旁邊。 The electromechanical mechanism (12) extends partially along the pedal shaft (11) and/or extends laterally to the side of the pedal shaft (11). 如請求項1或2所述之驅動系統，其特徵在於， The drive system according to claim 1 or 2, characterized in that, 該第一正齒輪級(14)的第一齒輪(14a)和該電機機械(12)的驅動軸(12a)係佈置成彼此同軸， The first gear (14a) of the first spur gear stage (14) and the drive shaft (12a) of the electromechanical machine (12) are arranged coaxially with each other, 與該第一正齒輪級(14)的該第一齒輪(14a)嚙合的該第一正齒輪級(14)的第二齒輪(14b)和該第二正齒輪級(15)的第一齒輪(15a)係佈置成彼此同軸且無旋轉地連接， The second gear (14b) of the first spur gear stage (14) and the first gear of the second spur gear stage (15) meshing with the first gear (14a) of the first spur gear stage (14) (15a) are arranged to be coaxially and non-rotatably connected to each other, 與該第二正齒輪級(15)的該第一齒輪(15a)嚙合的該第二正齒輪級(15)的第二齒輪(15b)和該斜齒輪級(16)的第一斜齒輪(16a)係佈置成彼此同軸且無旋轉地連接， The second gear (15b) of the second spur gear stage (15) and the first helical gear (16) of the helical gear stage (16) mesh with the first gear (15a) of the second spur gear stage (15) 16a) are arranged to be coaxially and non-rotatably connected to each other, 與該斜齒輪級(16)的該第一斜齒輪(16a)嚙合的該斜齒輪級(16)的第二斜齒輪(16b)和該踏板軸(11)係佈置成彼此同軸。 The second helical gear (16b) of the helical gear stage (16) and the pedal shaft (11) meshing with the first helical gear (16a) of the helical gear stage (16) are arranged coaxially with each other. 如請求項3所述之驅動系統，其特徵在於， The drive system as described in claim 3, characterized in that, 該電機機械(12)的該驅動軸(12a)係垂直於該踏板軸。 The drive shaft (12a) of the motor machine (12) is perpendicular to the pedal axis. 如請求項3或4所述之驅動系統，其特徵在於， The drive system according to claim 3 or 4, characterized in that, 該第一正齒輪級(14)的該第二齒輪(14b)係部分地沿著該電機機械(12)及/或在該電機機械(12)上方延伸，並且 The second gear (14b) of the first spur gear stage (14) extends partially along and/or above the electromechanical machine (12), and 該第二正齒輪級(15)的該第二齒輪(15b)係部份地沿著該踏板軸(11)和該第一正齒輪級(14)的該第二齒輪(14b)及/或在該踏板軸(11)和該第一正齒輪級(14)的該第二齒輪(14b)上方延伸。 The second gear (15b) of the second spur gear stage (15) is partially along the pedal shaft (11) and the second gear (14b) of the first spur gear stage (14) and/or Extends above the pedal shaft (11) and the second gear (14b) of the first spur gear stage (14). 如請求項3至5中任一項所述之驅動系統，其特徵在於， The drive system according to any one of claims 3 to 5, characterized in that, 該第一正齒輪級(14)的該第二齒輪(14b)和該第二正齒輪級(15)的該第二齒輪(15b)彼此重疊。 The second gear wheel (14b) of the first spur gear stage (14) and the second gear wheel (15b) of the second spur gear stage (15) overlap each other. 如請求項3至6中任一項所述之驅動系統，其特徵在於， The drive system according to any one of claims 3 to 6, characterized in that, 該電機機械(12)在該驅動軸(12a)方向上的尺寸小於該斜齒輪級(16)的該第二斜齒輪(16b)的直徑。 The size of the electromechanical machine (12) in the direction of the drive shaft (12a) is smaller than the diameter of the second helical gear (16b) of the helical gear stage (16). 如請求項3至7中任一項所述之驅動系統，其特徵在於， The drive system according to any one of claims 3 to 7, characterized in that, 該電機機械(12)在該驅動軸(12a)方向上的尺寸與該第一正齒輪級(14)的軸向厚度的總和小於等於該斜齒輪級(16)的該第二斜齒輪(16b)的直徑。 The sum of the size of the motor machine (12) in the direction of the drive shaft (12a) and the axial thickness of the first spur gear stage (14) is less than or equal to the second helical gear (16b) of the helical gear stage (16) ) diameter. 如請求項3至8中任一項所述之驅動系統，其特徵在於， The drive system according to any one of claims 3 to 8, characterized in that, 該第二正齒輪級(15)的該第二齒輪(15a)的直徑係小於該電機機械(12)在該踏板軸(11)方向上的尺寸，及/或小於等於該電機機械(12)在垂直於該踏板軸(11)且垂直於該電機機械(12)的該驅動軸(12a)的方向上的尺寸。 The diameter of the second gear (15a) of the second spur gear stage (15) is smaller than the size of the electric machine (12) in the direction of the pedal axis (11), and/or is smaller than or equal to the electric machine (12) Dimensions in a direction perpendicular to the pedal axis (11) and perpendicular to the drive axis (12a) of the electromechanical machine (12). 如請求項1至9中任一項所述之驅動系統，其特徵在於， The drive system according to any one of claims 1 to 9, characterized in that: 該斜齒輪級(16)係90°斜齒輪級。 The helical gear stage (16) is a 90° helical gear stage. 如請求項1至10中任一項所述之驅動系統，其特徵在於，該變速器(13)的傳動比係在1：40和1：50之間。 The drive system according to any one of claims 1 to 10, characterized in that the transmission ratio of the transmission (13) is between 1:40 and 1:50.
TW112106509A 2022-04-07 2023-02-22 Drive system for an e-bike or pedelec TW202402614A (en)

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