TWI813287B - Power output system and electric bicycle - Google Patents

Abstract

The invention discloses power output system and electric bicycle. The power output system includes a harmonic deceleration module. The harmonic deceleration module includes a connecting member, a flexible bearing, a first frame, a first rigid wheel, a second frame, and a second rigid wheel. When the connecting member is driven, it can rotate on a central axis and a wave generator which is composed of the cam portion of the connecting member and the flexible bearing will be driven. When the wave generator is driven, the wave generator will drive the flexible wheel to repeatedly flexibly deform and the flexible wheel will drive the second rigid wheel to rotate so that the second frame will rotate. The second frame body includes a hollow channel penetrating along the central axis. The harmonic deceleration module has the advantage of small size.

Description

Power take-off systems and electric bicycles

The present invention relates to a power output system and an electric bicycle, in particular to a power output system and an electric bicycle including a harmonic deceleration module.

The existing power device commonly used in electric bicycles, which includes a motor and a reducer, has a problem of being bulky. This problem will directly affect the overall appearance of the electric bicycle.

The present invention discloses a power output system and an electric bicycle, which are mainly used to improve the problem that the conventional power device (including a motor and a reducer) used in an electric bicycle is bulky.

One embodiment of the present invention discloses a harmonic deceleration module, which includes: a connecting member, a flexible bearing, a flexspline, a first frame, a first rigid sprocket, a second frame and a first Two rigid wheels. Two opposite ends of the connecting member are respectively defined as a first end and a second end. The connecting member has a cam portion; the connecting member is used to connect with an external driving unit, and when the connecting member is driven by the external driving unit to rotate , the connecting member rotates around a central axis; the inner ring structure of the flexible bearing is fixed on the periphery of the cam part; when the connecting member is driven to rotate, the cam part and the flexible bearing can together form a wave generator; the inner side of the flexspline Connected to the outer ring structure of the flexible bearing, the periphery of the flexspline contains a plurality of external tooth-like structures; a part of the first frame and the periphery of the connecting member are pivotally connected to each other; the first rigid sprocket has an annular structure, and the first rigid sprocket It includes a plurality of first internal tooth-shaped structures, the first rigid wheel and the first frame are fixed to each other, the plurality of first internal tooth-shaped structures mesh with a plurality of external tooth-shaped structures; a part of the second frame and the connecting member The peripheries are pivoted to each other; the second frame is used to connect with an external output member; when the second frame is driven to rotate, it rotates with the central axis as the center; the second rigid wheel is an annular structure, and the second rigid wheel is It includes a plurality of second internal tooth-shaped structures, the second rigid wheel and the second frame are fixed to each other, and the plurality of second internal tooth-shaped structures mesh with a plurality of external tooth-shaped structures; wherein, the first rigid wheel contains multiple The number of first internal tooth-like structures is equal to the number of multiple external tooth-like structures included in the flexspline, and the number of multiple second internal tooth-like structures included in the second rigid spline is greater than the number of multiple external tooth-like structures included in the flexspline. The number of tooth-like structures; among them, when the connecting member is driven to rotate around the central axis, the wave generator will drive the flexspline to repeatedly flexibly deform, and the flexspline that repeatedly flexibly deforms will drive the second When the rigid wheel rotates, the second frame rotates with the second rigid wheel around the central axis, and the power input by the connecting member will be decelerated and output by the second frame.

One embodiment of the present invention discloses a power device, which includes: a harmonic reduction module, a drive unit, an outer casing and an outer end cover. The harmonic deceleration module includes: a connecting member, a flexible bearing, a flexspline, a first frame, a first rigid wheel, a second frame, a second rigid wheel and an end cover. The two opposite ends of the connecting member are respectively defined as a first end and a second end. The connecting member has a cam portion, and the connecting member can be driven to rotate around a central axis; the inner ring structure of the flexible bearing is fixed on The periphery of the cam part; when the connecting member is driven to rotate, the cam part and the flexible bearing can together form a wave generator; the inside of the flexspline is connected to the outer ring structure of the flexible bearing, and the periphery of the flexspline contains multiple external teeth. Structure; a part of the first frame is pivotally connected to the periphery of the connecting member; the first rigid wheel is an annular structure, the first rigid wheel includes a plurality of first internal tooth structures, and the first rigid wheel and the first frame are mutually connected. Fixed, a plurality of first internal tooth-shaped structures mesh with a plurality of external tooth-shaped structures; a part of the second frame body is pivotally connected to the periphery of the connecting member; the second frame body is used to connect with an external output member; When the second frame is driven to rotate, it rotates with the central axis as the center; the second rigid wheel is an annular structure, the second rigid wheel contains a plurality of second internal tooth structures, and the second rigid wheel and the second frame interact with each other. Fixed, a plurality of second internal tooth-like structures mesh with a plurality of external tooth-like structures; the end cover is fixedly provided at one end of the first frame, and the end cover and the periphery of the second frame are pivotally connected to each other; wherein, the first The number of multiple first internal tooth-like structures included in the rigid spline is equal to the number of multiple external tooth-like structures included in the flexspline, and the number of multiple second internal tooth-like structures included in the second rigid spline is greater than that of the flex spline. The number of multiple external denticles contained. The drive unit is connected to the connecting member. The outer shell has a hollow structure, and the harmonic deceleration module and the drive unit are arranged in the outer shell. The outer end cap is fixed on one end of the outer shell. Among them, when the driving unit is controlled to rotate the connecting member around the central axis, the wave generator will drive the flexspline to repeatedly flexibly deform, and the flexspline that repeatedly flexibly deforms will drive the second rigid sprocket to rotate. The second frame rotates with the second rigid wheel about the central axis, and the power input by the connecting member will be decelerated and output by the second frame.

One embodiment of the present invention discloses a power output system, which is suitable for being installed on a frame set of an electric bicycle. The power output system includes: the power device of the present invention; the power output system also includes: a central axis, two cranks, A toothed plate, a first one-way clutch and a second one-way clutch. The two cranks are connected to both ends of the central shaft, and the other end of each crank is used to connect a pedal. The first one-way clutch is connected to the central shaft, and the first one-way clutch is connected to the gear plate; the second one-way clutch is connected to the second frame, and the second one-way clutch is connected to the first one-way clutch; The power device also includes: a first auxiliary end cover and a second auxiliary end cover. The first auxiliary end cap is an annular structure. The periphery of the first auxiliary end cap is fixed to the inside of an outer through hole of the outer end cap. The inside of the first auxiliary end cap is pivotally connected to the periphery of the central axis; the second auxiliary end cap is pivotally connected to each other. Fixed at one end of the outer shell, the second auxiliary end cover and the first one-way clutch are pivotally connected to each other; when the user steps on the two pedals to make the electric bicycle move forward, the two cranks will drive the central axis to a first Rotate in one direction, and the central axis will drive the first one-way clutch to act to link the toothed plate to rotate in the first direction, and the toothed plate can drive a rear wheel of the electric bicycle to rotate through a transmission part; among them, when the two cranks are When driven to rotate in a second direction, the central axis will rotate in the second direction, and the central axis will link the first one-way clutch to act, and the first one-way clutch will not link the gear plate to rotate; the second direction is opposite to the first direction; wherein, when the driving unit is controlled to act, the driving unit will drive the connecting member to rotate in the first direction, and the flexspline will be driven to repeatedly flexibly deform, and the flexspline that is repeatedly flexibly deformed will drive the third direction. When the two rigid wheels rotate, the second frame will rotate in the first direction together with the second rigid wheel, and the second frame will drive the second one-way clutch to act, to link the first one-way clutch to act, thereby driving the toothed plate Rotate in the first direction.

One embodiment of the present invention discloses an electric bicycle, which includes: the power output system of the present invention, the frame set, a processing module and a power system. The frame set is provided with a frame, a handle, and a power system. The front wheel, the rear wheel, the seat cushion, a braking system and the transmission part; the power output system is arranged on the frame set; the power output system is arranged on the frame; the processing module The driving unit is electrically connected; the power system is electrically connected to the processing module, and the power system is used to provide power required for the operation of the power output system.

To sum up, the harmonic deceleration module of the present invention, the harmonic deceleration module in the power device, the harmonic deceleration module in the self-propelled vehicle, the harmonic deceleration module in the transfer equipment, the harmonic deceleration module in the power output system The harmonic deceleration module and the harmonic deceleration module in the electric bicycle are compared with the traditional harmonic deceleration module, the harmonic deceleration module in the traditional self-propelled vehicle, and the harmonic deceleration module in the traditional transfer equipment. The deceleration module, the harmonic deceleration module in the traditional power output system and the harmonic deceleration module in the traditional electric bicycle are small in size.

In order to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, these descriptions and drawings are only used to illustrate the present invention and do not make any reference to the protection scope of the present invention. limit.

In the following description, if it is pointed out that please refer to a specific diagram or as shown in a specific diagram, it is only used to emphasize that in the subsequent explanation, most of the relevant content mentioned appears in the specific diagram. However, this is not limited to the specific drawings that can only be referred to in the subsequent description.

Please refer to Figures 1 to 7 together. The harmonic deceleration module A of the present invention includes: a connecting member 10, a flexible bearing 11, a flexspline 12, a first frame 13, a first rigid sprocket 14, A first bearing 15, a second frame 16, a second rigid wheel 17, a second bearing 18, a third bearing 19 and an end cover 20.

As shown in FIGS. 2 to 5 , two opposite ends of the connecting member 10 are respectively defined as a first end 10A and a second end 10B. The connecting member 10 may be a generally cylindrical structure. The connecting member 10 may include a cam portion 101, a first annular portion 102, a first annular limiting portion 103, a second annular portion 104 and a second annular limiting portion 105. The connecting member 10 In the direction from the first end 10A to the second end 10B, there may be a second annular part 104, a second annular limiting part 105, a cam part 101, a first annular limiting part 103 and a first ring in order. Shape 102.

The outer diameter of the connecting member 10 at the first annular portion 102 is smaller than the outer diameter of the connecting member 10 at the first annular limiting portion 103 , and the outer diameter of the connecting member 10 at the first annular limiting portion 103 is smaller than the outer diameter of the connecting member 10 at the first annular limiting portion 103 . The outer diameter of the cam portion 101, the outer diameter of the connecting member 10 at the second annular limiting portion 105 is smaller than the outer diameter of the connecting member 10 at the cam portion 101, and the outer diameter of the connecting member 10 at the second annular portion 104 is smaller than the connecting member. 10 is the outer diameter of the second annular limiting portion 105 .

The inner ring structure 111 of the flexible bearing 11 and the outer periphery of the cam portion 101 of the connecting member 10 are fixed to each other, and the outer ring structure 112 of the flexible bearing 11 and the inner side of the flexspline 12 are fixed to each other. The periphery of the flexspline 12 has a plurality of external tooth-like structures 121 . The number of the multiple external tooth-like structures 121 included in the flexspline 12 is not limited to that shown in the figure, and can be increased or decreased according to requirements.

It should be particularly emphasized that the periphery 1011 of the cam portion 101 is elliptical, and the cam portion 101 serves as a cam. When the connecting member 10 is driven, the cam portion 101 and the flexible bearing 11 will jointly form a wave. A wave generator is used to drive the flexspline 12 to repeatedly flexibly deform.

As shown in Figures 2, 3 and 5, the first frame 13 may include a plate body 131 and an annular side wall 132. The annular side wall 132 is connected to the periphery of the plate body 131, and the plate body 131 and the annular side wall 132 are connected together. A receiving groove 13A is formed. The plate body 131 may have a through hole 1311 and an inner bearing groove 1312. The through hole 1311 penetrates the plate body 131 along the central axis CP. The inner bearing groove 1312 is formed by an indentation on one side of the plate body 131 adjacent to the ring side wall 132 , and the inner bearing groove 1312 is connected with the through hole 1311 . The end of the ring side wall 132 away from the plate body 131 may be concave to form an outer bearing groove 1322, and the outer bearing groove 1322 and the groove 13A are connected with each other. In practical applications, the plate body 131 may be a circular plate-shaped structure.

The first rigid wheel 14 is an annular member. A plurality of first internal tooth-like structures 141 are formed on the inner side of the first rigid wheel 14 . The periphery of the first rigid wheel 14 is connected with the inner surface 1321 of the ring side wall 132 of the first frame 13 mutually fixed. In practical applications, the first rigid wheel 14 and the first frame 13 can be two independent components and are fixed to each other in an appropriate manner (such as locking, gluing, welding, etc.), but are not limited to this. In different embodiments, the first frame 13 and the first rigid wheel 14 may also be integrally formed.

The first bearing 15 is disposed in the inner bearing groove 1312. The inner ring structure 151 of the first bearing 15 is fixed to the periphery of the first annular portion 102 of the connecting member 10 . The outer ring structure 152 of the first bearing 15 is fixed to the inner wall 1313 of the inner bearing groove 1312 of the plate body 131 . , and the connecting member 10 is pivotally connected to the first frame 13 through the first bearing 15 . The first bearing 15 is mainly used to enable the connecting member 10 and the first frame 13 to be pivotally connected to each other. In practical applications, the first bearing 15 can also be replaced with any component that can achieve the same function.

As shown in FIGS. 2 and 3 , the first frame 13 provided with the first rigid wheel 14 is pivoted to each other through the first bearing 15 and the connecting member 10 . The structure 141 will mesh with a portion of the plurality of external tooth-shaped structures 121 of the flexspline 12 , and one side of the first bearing 15 is the side corresponding to the first annular limiting portion 103 . Through the design of the first annular limiting portion 103, relevant personnel or mechanical equipment will insert the first frame 13 with the first bearing 15 into the connecting member 10 from the second end 10B of the connecting member 10, so as to During the process of fixing the first bearing 15 to the first annular portion 102, relevant personnel or mechanical equipment will be able to clearly see when one side of the first bearing 15 abuts against one side of the first annular limiting portion 103. It is known that the first bearing 15 and the first frame 13 fixed to each other have been installed in the correct position on the connecting member 10 .

As shown in Figures 2, 3, 6 and 7, the second frame 16 has a hollow channel 161. The hollow channel 161 penetrates the second frame 16 along the central axis CP. One side of the second frame 16 is concave. A bearing groove 162 is formed, and the bearing groove 162 is connected with the hollow channel 161 . The second bearing 18 is disposed in the bearing groove 162. The inner ring structure 181 of the second bearing 18 is fixed on the periphery of the second annular portion 104 of the connecting member 10. The outer ring structure 182 of the second bearing 18 forms the second frame. The inner walls 163 of the bearing grooves 162 of the second frame 16 are fixed to each other, and the second frame 16 is pivotally connected to the periphery of the connecting member 10 through the second bearing 18 . The second bearing 18 is mainly used to enable the connecting member 10 and the second frame 16 to be pivotally connected to each other. In practical applications, the second bearing 18 can also be replaced with any component that can achieve the same function. In different embodiments, the second frame 16 may not have the hollow channel 161 .

In practical applications, the connecting member 10 may have a connecting channel 10C that runs through the connecting member 10 along the central axis CP, and the hollow channel 161 communicates with the connecting channel 10C. The connecting channel 10C and the hollow channel 161 are connected with each other and can be used to set relevant wires and other components. Of course, the connecting member 10 is not limited to including the connecting channel 10C. In different embodiments, the connecting member 10 may also be a solid member that does not include the connecting channel 10C.

The second rigid wheel 17 has an annular structure. A plurality of second internal tooth-like structures 171 are formed on the inside of the second rigid wheel 17 . A part of the second rigid wheel 17 and the periphery of the second frame 16 are fixed to each other. In practical applications, the second rigid wheel 17 and the second frame 16 can be integrally formed, but are not limited to this. In different embodiments, the second rigid wheel 17 and the second frame 16 can also be They are two independent components that are fixed to each other in appropriate ways (such as locking, gluing, welding, etc.).

When the second frame 16 is pivotally connected to the periphery of the connecting member 10 through the second bearing 18 , the plurality of second internal tooth-shaped structures 171 will engage with a portion of the multiple external tooth-shaped structures 121 of the flexspline 12 . That is to say, a part of the plurality of external tooth-shaped structures 121 of the flexspline 12 meshes with the plurality of second internal tooth-shaped structures 171 of the second rigid spline 17 , and another part of the plurality of external tooth-shaped structures 121 meshes with The plurality of first internal tooth structures 141 of the first rigid wheel 14 mesh with each other.

It is worth mentioning that after the second frame 16 provided with the second rigid wheel 17 is pivotally connected to the connecting member 10 through the second bearing 18, one side of the second bearing 18 is correspondingly against the second annular One side of the limiting part 105. Through the provision of the second annular limiting portion 105, relevant personnel or mechanical equipment can insert the second frame 16 with the second bearing 18 into the connecting member 10 from the first end 10A of the connecting member 10, so as to During the process of fixing the second bearing 18 to the second annular portion 104, relevant personnel or mechanical equipment will be able to clearly understand when one side of the second bearing 18 abuts against one side of the second annular limiting portion 105. It is known that the second bearing 18 and the second frame 16 fixed to each other have been installed in the correct position on the connecting member 10 .

When the second frame 16 and the second rigid wheel 17 are installed on the first annular portion 102 of the connecting member 10 through the second bearing 18 , the second rigid wheel 17 will be correspondingly located in the receiving groove 13A of the first frame 13 , and a part of the periphery 164 of the second frame 16 will be corresponding to one end exposed to the first frame 13 , and the outer bearing groove 1322 of the first frame 13 is disposed adjacent to the periphery 164 of the second frame 16 .

A portion of the third bearing 19 is disposed in the outer bearing groove 1322 . The inner ring structure 191 of the third bearing 19 is fixed to the periphery 164 of the second frame 16 , and a part of the outer ring structure 192 of the third bearing 19 is fixed to the inner wall of the outer bearing groove 1322 forming the first frame 13 . The end cap 20 has a through hole 201 , the through hole 201 penetrates the end cap 20 along the central axis CP, and a bearing groove 202 is formed inwardly on one side of the end cap 20 . An end surface of the end cover 20 formed with the bearing groove 202 and an end surface of the first frame 13 formed with the outer bearing groove 1322 are fixed to each other. Another part of the outer ring structure 112 of the third bearing 19 is fixed to the inner wall 203 of the bearing groove 202 forming the end cover 20 , and the second frame 16 can be relative to the first frame 13 and the end through the third bearing 19 . Cover 20 rotations. The third bearing 19 is mainly used to enable the second frame 16 to be pivotally connected to the first frame 13 and the end cover 20. In practical applications, the third bearing 19 can also be replaced with anything that can achieve the same function. components.

As shown in Figures 2 and 3, it is worth mentioning that the connecting member 10, the first bearing 15, the first frame 13, the second frame 16, the second bearing 18, the third bearing 19 and the end cover 20, A closed space SP will be formed together, and the flexible bearing 11, the flexspline 12, the first rigid sprocket 14 and the second rigid sprocket 17 are correspondingly located in the closed space SP. In this way, dust outside the harmonic deceleration module A can be avoided. , dirt, etc. can easily enter between the plurality of external toothed structures 121 , the plurality of first internal toothed structures 141 and the plurality of second internal toothed structures 171 , thereby further extending the flexspline 12 and the first rigid sprocket. 14 and the service life of the second rigid wheel 17.

In practical applications, the number of the plurality of first internal tooth-like structures 141 included in the first rigid spline 14 is equal to the number of the plurality of external tooth-like structures 121 included in the flexspline 12 , and the number of the plurality of first internal tooth-like structures 141 included in the second rigid spline 17 The number of the plurality of second internal tooth-like structures 171 is greater than the number of the plurality of external tooth-like structures 121 included in the flexspline 12 . In one embodiment, the difference between the number of first internal tooth-like structures 141 included in the first rigid wheel 14 and the number of second internal tooth-like structures 171 included in the second rigid wheel 17 Can be less than 5 teeth.

In a specific application, the connecting member 10 of the harmonic deceleration module A of this embodiment is used to connect to an external drive unit (such as a motor), and the second frame 16 is used to connect to an external output member. are connected, and the power output by the external drive unit can be transmitted to the external output component through the harmonic deceleration module A of the present invention.

Specifically, when the connecting member 10 is driven to rotate, the connecting member 10 will rotate around the central axis CP, and the cam portion 101 of the connecting member 10 will drive the flexible bearing 11 to rotate, and the cam portion 101 and the flexible bearing will rotate. 11 will together form a wave generator, which will drive the flexspline 12 to repeatedly flexibly deform, and a part of the multiple external tooth-like structures 121 of the flexspline 12 will be connected with the multiple first internal teeth of the first rigid sprocket 14 Parts of the tooth-shaped structures 141 mesh with each other. Since the number of the first internal tooth-shaped structures 141 of the first rigid wheel 14 is the same as the number of the external tooth-shaped structures 121 of the flexspline, the flexspline 12 is driven by the wave generator to repeatedly During flexible deformation, the flexspline 12 will not rotate relative to the first rigid sprocket 14; the part of the external tooth structure 121 of the flex spline 12 that is repeatedly flexibly deformed will be in contact with the part of the second internal tooth structure of the second rigid wheel 17. The structures 171 mesh with each other. Since the number of the external tooth-shaped structures 121 of the flexspline 12 is different from the number of the second internal tooth-shaped structures 171 of the second rigid wheel 17, the second rigid wheel 17 will be repeatedly flexibly deformed. The flexspline 12 is driven to rotate, and the second frame 16 will rotate together with the second rigid spline 17 . Through the design of the flexspline 12, the first rigid sprocket 14 and the second rigid sprocket 17, the high-speed power input from the connecting member 10 will be output by the second frame 16 at a relatively low speed.

It is worth mentioning that the flexspline in the common harmonic deceleration module is generally hat-shaped or cup-shaped, and in addition to the external tooth-like structure, the periphery of the flexspline also has There are parts that do not include an external tooth-like structure. On the contrary, the periphery of the flexspline 12 of the harmonic deceleration module A of the present invention basically only has an external tooth-like structure 121. Therefore, the harmonic deceleration module A of the present invention has The axial length (Y-axis direction as shown in Figure 2) of the flexspline 12 is shorter than the axial length of the traditional hat-shaped or cup-shaped flexspline, and the harmonic deceleration module A of the present invention The overall volume is smaller than the traditional harmonic deceleration module.

The harmonic deceleration module A of the present invention is designed to rotate around the same central axis CP when the connecting member 10 and the second frame 16 are rotated, so that the harmonic deceleration module A can have better performance. Dynamic characteristics and smaller vibration noise.

It should be noted that in the drawings of this embodiment, the flexible bearing 11 , the first bearing 15 , the second bearing 18 and the third bearing 19 are all ball bearings as examples, but the flexible bearing 11 , the first bearing 15 and the third bearing 19 are all ball bearings. The second bearing 18 and the third bearing 19 are not limited to ball bearings, and their forms can be selected according to needs. For example, roller bearings can also be used. In addition, in practical applications, oil seals may be added around the first bearing 15 and the third bearing 19 to further prevent external dirt from entering the closed space SP.

Please refer to Figures 8 to 12 together. The self-propelled vehicle B of the present invention includes a body B1, four wheels B2, a processing module B3 and a power device C. The body B1 can be used to carry objects or people according to needs. The processing module B3 is disposed in the body B1, at least a part of the power device C is disposed in the body B1, and the power device C is connected to at least one wheel B2. The body B1 contains relevant necessary electronic components and mechanical components for the normal operation of the self-propelled vehicle B. The processing module B3 is electrically connected to the power device C, and the processing module B3 is used to control the operation of the power device C, so that the power device C drives the wheel B2 to move. The processing module B3 may include, for example, a circuit board, a microprocessor, etc., and is used to control the necessary electronic components related to the operation of the power device C.

The self-propelled vehicle B of the present invention can be used as an automated guided vehicle (AGV), for example, but is not limited thereto. The self-propelled vehicle B of the present invention generally refers to any manned or autonomous vehicle with an automatic walking function. It's a cargo vehicle. In addition, the number of wheels B2 included in the self-propelled vehicle B of the present invention and the number of power units C included in the self-propelled vehicle B can be changed according to needs.

As shown in Figures 9 to 12, the power device C of the present invention includes a drive unit C1, an outer casing C2, a harmonic reduction module A and an outer end cover C3. The outer casing C2 has a hollow structure, and the harmonic reduction module A and the drive unit C1 are arranged in the outer casing C2. The outer end cap C3 is fixed to one end of the outer shell C2.

The harmonic deceleration module A includes: a connecting member 10, a flexible bearing 11, a flexspline 12, a first frame 13, a first rigid wheel 14, a first bearing 15, a second frame 16, A second rigid wheel 17, a second bearing 18, a third bearing 19 and an end cover 20. Regarding the connection relationship and operating relationship between these components, please refer to the description of the previous embodiment and will not be repeated here.

The driving unit C1 is connected to the connecting member 10. The driving unit C1 is electrically connected to the processing module B3. The processing module B3 can control the operation of the driving unit C1, thereby causing the connecting member 10 to rotate around the central axis CP through the driving unit C1. Specifically, the driving unit C1 may be a motor, for example. The motor includes a rotor assembly C12 and a stator assembly C11. The stator assembly C11 is fixed on the inner side of the outer shell C2 , and the rotor assembly C12 is fixed on the periphery of the connecting member 10 . In practical applications, the rotor assembly C12 may be disposed adjacent to the second end 10B of the connecting member 10 , and the rotor assembly C12 may be located on one side of the first frame 13 of the harmonic reduction module A. In one embodiment, the iron core included in the rotor assembly C12 may be fitted around the periphery of the connecting member 10 , or the plurality of magnets included in the rotor assembly C12 may be arranged in an annular manner on the connecting member 10 Periphery. By fixing the rotor assembly C12 to the periphery of the connecting member 10 and other designs, the rotor assembly C12 and the connecting member 10 can rotate around the same central axis CP when operating. In this way, the load of the power device C can be greatly reduced. volume. By arranging the plurality of magnets included in the rotor assembly C12 in an annular manner on the periphery of the connecting member 10, compared with the assembly method of fitting the rotor assembly C12 on the periphery of the connecting member 10, further improvements can be made. The assembly tolerance between the rotor assembly C12 and the connecting member 10 is reduced, and the problem of deformation of the connecting member 10 during the fitting process can also be avoided. It can also increase the probability of successful assembly of the rotor assembly C12 and the connecting member 10 at one time (commonly known as Through rate).

As shown in Figures 8 to 10, the harmonic deceleration module A is disposed in the outer casing C2, and the first frame 13 and the end cover 20 of the harmonic deceleration module A can be directly connected to the inside of the outer casing C2. Engage, and the end cover 20 of the harmonic reduction module A may be disposed corresponding to one end adjacent to the outer shell C2.

The second frame 16 of the harmonic deceleration module A is connected to the wheel B2, and the second frame 16 can drive the wheel B2 to rotate. In practical applications, the second frame 16 and the wheel B2 may respectively include a plurality of corresponding keyholes B21, and the plurality of keyholes 165 of the second frame 16 and the plurality of keyholes 165 of the wheel B2 may be It cooperates with a plurality of screws to fix the second frame 16 and the wheel B2 to each other.

In a preferred embodiment, the assembly method of the harmonic reduction module A and the outer casing C2 can be fixed to each other in a repeatedly detachable manner, and the connection method of the driving unit C1 and the connecting member 10 can also be They can be connected to each other in a repeatedly disassembly and assembly manner. In this way, when the harmonic reduction module A of power unit C fails, relevant personnel can replace the harmonic reduction module A of power unit C through simple disassembly and assembly operations.

In different embodiments, the power device C may also include two outer end caps C3. The two outer end caps C3 are correspondingly disposed at both ends of the outer shell C2, and the end caps 20 of the harmonic reduction module A are basically The upper part is located in the outer casing C2. Of course, the outer end cover C3 of the second frame 16 adjacent to the harmonic reduction module A has a through hole, and the second frame 16 and the wheel B2 can be connected to each other through the through hole of the outer end cover C3.

The power device C also includes at least one sensor, which is used to sense at least one of the torque, speed, and position of the connecting member 10 when it rotates. For example, the sensor may be a torque sensor, a speed sensor, etc., and is not limited thereto. In one specific embodiment, the sensor may be a rotary encoder C4. The rotary encoder C4 includes a reading unit C41 and a magnetic ring C42. The reading unit C41 may be fixedly disposed outside. The end cover C3 and the magnetic ring C42 can be fixedly arranged on the periphery of the connecting member 10. The reading unit C41 is electrically connected to the processing module B3, and the reading unit C41 can cooperate with the magnetic ring C42 to generate corresponding The signal is transmitted to the processing module B3, and the processing module B3 can analyze the rotation speed, rotation position and other information of the connecting member 10 accordingly.

As shown in Figures 10, 12 and 13, in one specific embodiment, the outer end cover C3 may include a through hole C31, the through hole C31 is provided through the outer end cover C3, and one side of the outer end cover C3 A bearing groove C32 may be formed concavely. The power device C may also include an auxiliary bearing C5. The inner ring structure C51 of the auxiliary bearing C5 is fixed to the periphery of the connecting member 10. The outer ring structure C52 of the auxiliary bearing C5 is fixed to the inner side wall C33 of the bearing groove C32. The connecting member 10 can rotate relative to the outer end cover C3 through the auxiliary bearing C5. In addition, the connection channel 10C of the connection member 10 can be interconnected with the through hole C31 of the outer end cover C3, and the relevant wires included in the driving unit C1 and the sensor can be through-holes passing through the outer end cover C3. The hole C31 is provided in the connecting channel 10C. Among them, the auxiliary bearing C5, the outer end cover C3, the outer shell C2, the first bearing 15 and the first frame 13 together form a closed space SP2, and the driving unit C1 is correspondingly arranged in the closed space SP2.

According to the above, as shown in Figures 7 to 10, when the processing module B3 controls the driving unit C1 to operate, the driving unit C1 will drive the connecting member 10 to rotate, causing the harmonic deceleration module A to operate. Finally, the wheel B2 will be driven by the second frame 16 to rotate.

Please refer to Figures 14 and 15 together. The transfer equipment D of the present invention includes a base D1, 5 power units C, 4 connecting components D2 and 5 processing modules D3. The transfer device D of the present invention can be applied as a robotic arm device, but is not limited thereto. The number of power units C, the number of connection components D2 and the number of processing modules D3 included in the transfer equipment D can all be changed according to requirements and are not limited to those shown in the figure. In addition, the size, appearance, etc. of the connecting component D2 can be changed according to needs and are not limited to those shown in the figure.

The base D1 is used to place on the ground. The base D1 is connected to a power device C. The other end of the power device C connected to the base D1 is connected to a connecting component D2, and the other end of the connecting component D2 is Connected to another power unit C, and so on. For detailed description of the power device C, please refer to the foregoing embodiments and will not be described again here. Each processing module D3 is electrically connected to a power device C, and the processing module D3 can control the operation of the power device C to which it is connected, thereby causing multiple connecting components D2 to move relative to each other. In practical applications, the second frame 16 of the power device C located at the end of the transfer equipment D may be connected to a clamping member or the like according to requirements, which is not limited thereto.

As shown in Figure 15, the second frame 16 of the power device C may be exposed at one end of the outer casing C2 and connected to a connecting component D2, and the other end of the outer casing C2 may be connected to another connecting component D2. connection. The processing module D3 may be correspondingly disposed in a closed space SP3 formed by the outer shell C2 and the connecting component D2.

In one specific embodiment, the power device C may also include a brake C7 and a lead member C8. A part of the brake C7 is fixed to one side of the outer end cover C3, and the brake C7 is connected to the connecting member 10; the brake C7 is electrically connected to the processing module D3, and the processing module D3 can control the activation of the brake C7, thereby making the connection Component 10 no longer rotates.

The lead member C8 includes a lead channel C81. The lead channel C81 penetrates the lead member C8 along the central axis CP. The lead member C8 and the second frame 16 are fixed to each other, and the lead member C8 is not fixed to the connecting member 10, and the lead member C8 A part corresponds to the connection channel 10C provided in the connection member 10 , and a part of the lead member C8 corresponds to the hollow channel 161 provided in the second frame 16 . The lead channel C81 is used to provide at least one wire arrangement, which is used to connect the processing module D3, the sensor, the driving unit C1, the brake C7, etc., for example.

It should be noted that in this embodiment, a processing module D3 is provided in each power unit C as an example. However, the processing module D3 is not limited to being provided in the power unit C. In different embodiments, , the transfer equipment D may also include only a single processing module D3, and the processing module D3 may be installed in the base D1, and the processing module D3 is connected to the driving unit of each power device C through wires. C1 is electrically connected.

Please refer to Figures 16 to 23 together. The electric bicycle E of the present invention includes a frame set E1, a handle E2, a front wheel E31, a rear wheel E32, a seat cushion E4, a braking system E5, and a transmission part. E6, a power output system E7, an electric power system E8 and a processing module E9. The frame set E1 includes a frame, a front fork, a rear fork, and a seat tube. The handlebar E2, the front wheel E31, the rear wheel E32, the seat cushion E4, the braking system E5, the transmission part E6, the power output system E7, the power system E8 and the processing module E9 are all set on the frame group E1. Specifically, the power output System E7 is a bottom bracket provided on the frame of frame group E1. The transmission element E6 is used to connect the power output system E7 and the rear wheel E32. The transmission element E6 can be a chain, for example, but is not limited to this. In practical applications, the electric bicycle E may also include a transmission system. The power system E8 includes, for example, a rechargeable battery. The processing module E9 is electrically connected to the power output system E7 and the power system E8. The processing module E9 can control the operation of the power output system E7 and the power system E8.

As shown in Figures 17 to 22, the power output system E7 includes: a power unit E71, a central shaft E72, two cranks E73, a first one-way clutch E74, a toothed plate E75 and a second one-way clutch E76. The power device E71 includes an outer shell E711, a harmonic reduction module E712, a drive unit E713, an outer end cover E714, a first auxiliary end cover E715, a first auxiliary bearing E716, a torque sensor E717, a second auxiliary end cover E718 and a second auxiliary bearing E719. The connection relationship and operating relationship between the outer casing E711, the harmonic reduction module E712, the drive unit E713 and the outer end cover E714 in this embodiment are the same as those of the outer casing C2, the harmonic reduction module A and the drive unit in the previous embodiment. The connection relationship and action relationship between C1 and outer end cap C3 are roughly the same, and only the differences will be described below.

As shown in Figures 18 to 21, the outer end cap E714 of this embodiment also includes an outer through hole E7141, and the outer through hole E7141 is provided through the outer end cap E714. The first auxiliary end cap E715 has an annular structure. The periphery of the first auxiliary end cap E715 is fixed to the inner side of the outer through hole E7141. The inner side of the first auxiliary end cap E715 is fixed to each other the outer ring structure E7162 of the first auxiliary bearing E716. The inner ring structure E7161 of the first auxiliary bearing E716 and the periphery of the central shaft E72 are fixed to each other, and the central shaft E72 can rotate relative to the first auxiliary end cover E715 through the first auxiliary bearing E716.

A part of the central axis E72 is disposed through the power device E71 , and a part of the central axis E72 corresponds to the connecting channel 10C passing through the connecting member 10 . Both ends of the central axis E72 are connected to the two cranks E73. The end of each crank E73 away from the central axis E72 is connected to a pedal E10. The user can rotate the central axis E72 by stepping on the two pedals E10.

One end of the torque sensor E717 may be fixed to the outer end cover E714, and a part of the torque sensor E717 is disposed in the connection channel 10C of the connecting member 10, and a part of the torque sensor E717 is connected to the periphery of the central axis E72 , and the torque sensor E717 is used to sense the torque of the bottom bracket E72 and generate a torque signal accordingly. The torque sensor E717 is electrically connected to the processing module E9 (as shown in Figure 16). The processing module E9 can receive the torque signal transmitted by the torque sensor E717 and determine whether the torque of the bottom bracket E72 reaches a predetermined torque; When the processing module E9 determines that the torque of the central axis E72 reaches a predetermined torque, the processing module E9 may control the driving unit E713 of the power device E71 to operate to rotate the second frame 16 .

The second auxiliary end cover E718 has an annular structure. The second auxiliary end cover E718 is fixed to the end of the outer casing E711 opposite to the end where the outer end cover E714 is provided. The end cover 20 of the harmonic reduction module E712 is located correspondingly to the outer casing E711. within. The inner side of the second auxiliary end cover E718 and the outer ring structure E7192 of the second auxiliary bearing E719 are fixed to each other. The inner ring structure E7191 of the second auxiliary bearing E719 is connected to the first one-way clutch E74, and the first one-way clutch E74 can The second auxiliary bearing E719 rotates relative to the second auxiliary end cover E718. The toothed disc E75 and the first one-way clutch E74 are fixed to each other, and the toothed disc E75 is used to connect with the transmission member E6 (as shown in Figure 16). The first one-way clutch E74 is connected to the central shaft E72, and the central shaft E72 can be connected to the gear plate E75 through the first one-way clutch E74.

Through the setting of the first one-way clutch E74, when the user steps on the pedal E10 (as shown in Figure 16) and causes the two cranks E73 to rotate toward the front of the electric bicycle E (that is, the user steps forward), the central axis E72 will pass through The first one-way clutch E74 and the toothed plate E75 are connected to each other, and the toothed plate E75 will rotate together with the central shaft E72. Through this, the toothed plate E75 will drive the rear wheel E32 to rotate forward through the transmission member E6.

On the contrary, when the user steps on the pedal E10 (as shown in Figure 16) and causes the two cranks E73 to rotate toward the rear of the electric bicycle E (that is, the user steps backward), the central axis E72 will drive the first one-way clutch E74 to operate, and The first one-way clutch E74 will cause the central shaft E72 to drive the toothed plate E75 to act, and the toothed plate E75 will not rotate together with the central axis E72.

The second one-way clutch E76 is connected to the second frame 16 of the harmonic reduction module E712, and the second one-way clutch E76 is connected to the first one-way clutch E74. When the user steps on the pedal E10 (as shown in Figure 16) and causes the crank E73 to rotate forward, the first one-way clutch E74 will drive the second one-way clutch E76 to act, but the second one-way clutch E76 will not drive the third one-way clutch E76. The second frame 16 rotates.

When the user steps on the pedal E10 (as shown in Figure 16) and causes the crank E73 to rotate backward, the first one-way clutch E74 will prevent the central shaft E72 from connecting the gear plate E75, and the central shaft E72 is relative to the first one-way clutch E74 is in an idling state, therefore, the first one-way clutch E74 will not drive the second one-way clutch E76 to act.

When the user steps forward and the central shaft E72 drives the toothed plate E75 to rotate forward, if the processing module E9 (as shown in Figure 16) controls the driving unit E713 to act at the same time, the second one-way clutch E76 will synchronously drive the toothed plate. E75 rotates, thus achieving the effect of electric assisted riding. In practical applications, when the user pedals forward, the torque sensor E717 connected to the central axis E72 will continuously transmit the torque signal to the processing module E9 (as shown in Figure 16), and the processing module E9 (As shown in Figure 16) According to the torque signal, when it is determined that the current torque of the central shaft E72 exceeds a predetermined torque, the drive unit E713 is controlled to operate, thereby actuating the second frame 16, thereby through the second one-way clutch E76 and The first one-way clutch E74 rotates the gear plate E75, thereby achieving the effect of electric assisted riding. For example, when the user rides on a high-slope terrain, the torque of the central axis E72 will be relatively large. At this time, the processing module E9 (shown in Figure 16) will be able to control the action of the drive unit E713 to drive the bicycle accordingly. The chainring E75 rotates to reduce the user's pedaling burden.

Please refer to Figures 22 to 26 together. In practical applications, the first one-way clutch E74 may include a first annular member E741, a first annular wall E742 and a plurality of first rollers E743. The annular member E741 includes a central through hole E7411, and the central through hole E7411 penetrates the first annular member E741. The periphery of the first annular member E741 has a plurality of first protruding structures E7412 and a plurality of first grooves E7413. The plurality of first protruding structures E7412 are spaced apart from each other, and each first groove E7413 is located adjacent to There is one first protruding structure E7412 between two first protruding structures E7412 and between two adjacent first grooves E7413. Each first groove E7413 has two first arc surfaces E7414 and E7415, and the arcs of the two first arc surfaces E7414 and E7415 are different.

The first annular wall E742 may be formed in an auxiliary frame F. The auxiliary frame F is pivotally connected to the periphery of the central axis E72 through a third auxiliary bearing F1. The first annular member E741 forms the inner wall of the central through hole E7411 and the central axis. The peripheries of E72 are fixed to each other, and the first annular wall E742 is arranged facing a plurality of first grooves E7413, each first roller E743 is arranged in one of the first grooves E7413, and each first roller E743 is Located between the first annular member E741 and the first annular wall E742. One end of the auxiliary frame F is connected to the chainring E75.

As shown in Figures 16, 23 and 25, when the user steps forward to rotate the central axis E72 clockwise (i.e. in the first direction), the central axis E72 will drive the first annular member E741 to rotate clockwise, and each The first roller E743 will be correspondingly located between one of the first arc surfaces E7414 of the first groove E7413 and the first annular wall E742. At this time, each first roller E743 will be located between the first annular wall E742 and the first annular wall E742. Clamped by an annular member E741, the first annular wall E742 will rotate clockwise with the first annular member E741, and the toothed disc E75 connected to the auxiliary frame F will rotate with the auxiliary frame F. The disc E75 will drive the rear wheel E32 to rotate in the direction of the bicycle through the transmission member E6.

As shown in Figures 16, 23 and 26, when the user steps backwards to rotate the central axis E72 counterclockwise (i.e. in the second direction), the central axis E72 will drive the first annular member E741 to rotate counterclockwise, and each third One roller E743 will be correspondingly located between the other first arc surface E7415 of the first groove E7413 and the first annular wall E742. At this time, each first protruding structure E7412 will move the adjacent first roller. E743, and each first roller E743 will not be held by the first annular member E741 and the first annular wall E742. Therefore, the first annular wall E742 will not rotate together with the first annular member E741. That is, the auxiliary frame F and the gear plate E75 connected thereto will not rotate together with the central axis E72. That is to say, when the user steps backwards, the central axis E72 will drive the first annular member E741 to rotate, and each first roller E743 is in a self-rotating state, and the first annular wall E742 and the toothed plate connected thereto The E75 will not rotate with it.

Please refer to Figures 18, 22, 23, 27 and 28 together. The second one-way clutch E76 includes a second annular member E761, a second annular wall E762 and a plurality of second rollers. E763. The periphery of the second annular member E761 has a plurality of second protruding structures E7611 and a plurality of second grooves E7612. The plurality of second protruding structures E7611 are spaced apart from each other, and each second groove E7612 is located adjacent to There is one second protruding structure E7611 between two second protruding structures E7611 and between two adjacent second grooves E7612. Each second groove E7612 has two second arc surfaces E7613 and E7614, and the arcs of the two second arc surfaces E7613 and E7614 are different.

The second annular member E761 may be integrally formed with the second frame 16 , and the second annular member E761 is located on the opposite side of the second frame 16 facing the flexspline 12 (as shown in FIG. 19 ). The second annular wall E762 may be formed on the auxiliary frame F, and the second annular wall E762 is disposed facing a plurality of second grooves E7612, and each second roller E763 is disposed in one of the second grooves. In E7612, each second roller E763 is located between the second annular member E761 and the second annular wall E762.

As shown in Figures 16, 23, 27 and 28, when the driving unit E713 drives the second frame 16 to rotate clockwise, the second annular member E761 will rotate clockwise along with the second frame 16, and each of the second frame 16 will rotate clockwise. The two rollers E763 will be correspondingly located between one of the second arc surfaces E7613 of the second groove E7612 and the second annular wall E762. At this time, each second roller E763 will be separated by the second annular wall E762 and the second annular wall E762. Clamped by the annular member E761, the second annular wall E762 will rotate clockwise with the second annular member E761, and the toothed disc E75 connected to the auxiliary frame F will rotate with the auxiliary frame F, and the toothed disc E762 will rotate with the auxiliary frame F. The disc E75 will drive the rear wheel E32 to rotate in the direction of the bicycle through the transmission member E6.

As shown in Figure 23, when the central axis E72 rotates clockwise to make the bicycle move forward, the central axis E72 will drive the first annular member E741 to rotate clockwise, and the first annular side wall 132 of the auxiliary frame F will be moved by a plurality of One roller E743 is driven to rotate clockwise, and the second annular wall E762 of the auxiliary frame F will rotate relative to the plurality of second rollers E763, and each second roller E763 will be driven to rotate. The second annular wall E762 of the auxiliary frame F will not hold the plurality of second rollers E763 together with the second annular member E761, that is, when the central axis E72 rotates clockwise, the driving unit E713 does not act. , the central axis E72 will not drive the second frame 16 to rotate through the first one-way clutch E74 and the second one-way clutch E76.

It is worth mentioning that the first annular wall E742 of the first one-way clutch E74 and the second annular wall E762 of the second one-way clutch E76 are integrally formed on the auxiliary frame F, and the second one-way clutch E76 is integrally formed. By designing the second annular member E761 of the clutch E76 and the second frame 16 to be integrally formed, the overall volume of the power output system E7 can be significantly reduced. Of course, in different embodiments, the first annular wall E742 and the second annular wall E762 may also be connected in a non-integrated manner, and the second annular member E761 and the second frame 16 may also be connected in a non-integrated manner. are connected in a non-integrated manner.

It should be noted that the power output system of the electric bicycle of the present invention, compared with the related power output system of the conventional electric bicycle, also has the advantages of easy assembly and low assembly man-hours.

The above are only the best possible embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the protection scope of the present invention. .

A: Harmonic deceleration module 10: Connecting components 10A: first end 10B:Second end 10C:Connection channel 101: Cam part 1011:Peripheral 102: First ring part 103: First annular limiting part 104:Second ring part 105: Second annular limiting part 11:Flexible bearings 111: Inner ring structure 112: Outer ring structure 12: Flexspline 121:External tooth-like structure 13:First frame 13A:Tank 131:Plate body 1311:Perforation 1312: Inner bearing groove 1313:Inside wall 132: Ring side wall 1321: Medial side 1322: Outer bearing groove 14:The first round 141: First internal tooth-like structure 15:First bearing 151: Inner ring structure 152: Outer ring structure 16:Second frame 161: Hollow channel 162:Bearing groove 163:Inside wall 164: Peripheral 165:Keyhole 17: The second round 171:Second internal tooth-like structure 18:Second bearing 181: Inner ring structure 182: Outer ring structure 19:Third bearing 191: Inner ring structure 192: Outer ring structure 20: End cap 201:Perforation 202:Bearing groove 203: Medial wall B:Self-propelled vehicle B1:Body B2:wheel B21:Keyhole B3: Processing module C:Power device C1: drive unit C11: Stator assembly C12:Rotor assembly C2: Outer shell C3: Outer end cap C31:Through hole C32: Bearing groove C33: medial wall C4: Rotary encoder C41: Reading unit C42: Magnetic ring C5: Auxiliary bearing C51: Inner ring structure C52: Outer ring structure C7:brake C8: Lead component C81: Lead channel D: Transfer equipment D1: Base D2: Connected components D3: Processing module E: Electric bicycle E1: Frame set E2: handle E31: front wheel E32: rear wheel E4: seat cushion E5: Braking system E6: transmission parts E7: Power take-off system E71: Power unit E711: Outer shell E712: Harmonic deceleration module E713: drive unit E714: Outer end cap E7141: External perforation E715: First auxiliary end cover E716: First auxiliary bearing E7161: Inner ring structure E7162: Outer ring structure E717: Torque sensor E718: Second auxiliary end cover E719: Second auxiliary bearing E7191: Inner ring structure E7192: Outer ring structure E72: bottom bracket E73:Crank E74: First one-way clutch E741: First ring member E7411: Center hole E7412: First protruding structure E7413: Groove E7414: First arc surface E7415: First arc surface E742: First annular wall E743: First roller E75: chainring E76: Second one-way clutch E761: Second ring member E7611: Second protruding structure E7612: Groove E7613: Second arc surface E7614: Second arc surface E762: Second annular wall E763: Second roller E8: Power system E9: Processing module E10: Pedal F: Auxiliary frame F1: Third auxiliary bearing CP: central axis SP: enclosed space SP2: Enclosed space SP3: Enclosed space

Figure 1 is a schematic diagram of the harmonic deceleration module of the present invention.

Figure 2 is a schematic cross-sectional view along line II-II in Figure 1.

Figure 3 is a partially enlarged schematic diagram of Figure 2.

4 to 7 are different partially exploded schematic views of different components included in the harmonic deceleration module of the present invention.

Figure 8 is a schematic diagram of the self-propelled vehicle of the present invention.

Figure 9 is a partial schematic diagram of the self-propelled vehicle of the present invention.

FIG. 10 is a schematic cross-sectional view along the X-X line in FIG. 9 .

Figure 11 is an exploded schematic diagram of the power device and wheels of the self-propelled vehicle of the present invention.

Figures 12 and 13 are respectively partially exploded schematic views from different perspectives of the power device of the self-propelled vehicle of the present invention.

Figure 14 is a schematic diagram of the transfer equipment of the present invention.

FIG. 15 is a schematic cross-sectional view along the XV-XV line in FIG. 14 .

Figure 16 is a schematic diagram of the electric bicycle of the present invention.

Figure 17 is a schematic diagram of the power output system of the electric bicycle of the present invention.

FIG. 18 is a schematic cross-sectional view along the XVIII-XVIII line in FIG. 17 .

FIG. 19 is a partially enlarged schematic diagram of FIG. 18 .

20 to 22 are partially exploded schematic diagrams of different components of the power output system of the electric bicycle of the present invention.

Figure 23 is a partial cross-sectional schematic diagram of the power output system of the electric bicycle of the present invention.

Figure 24 is a schematic cross-sectional view along the XXIV-XXIV line in Figure 17.

FIG. 25 is a partially enlarged schematic diagram of FIG. 24 .

26 is a partially enlarged schematic diagram of another state of the central shaft, the first annular member, the first annular wall and the first roller of the power output system of the electric bicycle of the present invention.

Figure 27 is a schematic cross-sectional view along the XXVII-XXVII section of Figure 17.

FIG. 28 is a partially enlarged schematic diagram of FIG. 27 .

10: Connecting components

10C:Connection channel

E7: Power take-off system

E71: Power unit

E711: Outer shell

E712: Harmonic deceleration module

E713: drive unit

E714: Outer end cap

E7141: External perforation

E715: First auxiliary end cover

E716: First auxiliary bearing

E717: Torque sensor

E718: Second auxiliary end cover

E719: Second auxiliary bearing

E72: bottom bracket

E73:Crank

E74: First one-way clutch

E75: chainring

E76: Second one-way clutch

F: Auxiliary frame

F1: Third auxiliary bearing

CP: central axis

Claims (15)

A power output system, which is suitable for installation on a frame set of an electric bicycle, the power output system includes: A power plant consisting of: A harmonic reduction module, which includes: A connecting member, the two opposite ends of which are respectively defined as a first end and a second end. The connecting member has a cam portion, and the connecting member can be driven to rotate around a central axis; A flexible bearing, the inner ring structure of which is fixed on the periphery of the cam part; when the connecting member is driven to rotate, the cam part and the flexible bearing can together form a wave generator; A flexspline, the inner side of which is connected to the outer ring structure of the flexible bearing, and the periphery of the flexspline includes a plurality of external tooth-like structures; a first frame, a part of which is pivotally connected to the periphery of the connecting member; A first rigid wheel, which is an annular structure. The first rigid wheel includes a plurality of first internal tooth-like structures. The first rigid wheel and the first frame are fixed to each other. The plurality of first rigid wheels are The internal tooth-like structure meshes with a plurality of the external tooth-like structures; A second frame, a part of which is pivotally connected to the periphery of the connecting member; the second frame is used to connect with an external output member; when the second frame is driven and rotated, so The central axis is the central rotation; A second rigid wheel, which is an annular structure. The second rigid wheel includes a plurality of second internal tooth-like structures. The second rigid wheel and the second frame are fixed to each other. The plurality of second rigid wheels are The internal tooth-like structure meshes with a plurality of the external tooth-like structures; An end cover, which is fixedly installed on one end of the first frame, and the end cover and the periphery of the second frame are pivotally connected to each other; Wherein, the number of the first internal tooth-like structures included in the first rigid spline is equal to the number of the multiple external tooth-like structures included in the flexspline, and the second rigid sprocket includes The number of the plurality of second internal tooth-like structures is greater than the number of the plurality of external tooth-like structures included in the flexspline; a driving unit connected to the connecting member; An outer shell, which is a hollow structure, and the harmonic deceleration module and the drive unit are arranged in the outer shell; An outer end cover, which is fixed to one end of the outer shell; When the driving unit is controlled to rotate the connecting member around the central axis, the wave generator will drive the flexspline to repeatedly flexibly deform, and the flexspline will repeatedly flexibly deform. The flexspline will drive the second rigid wheel to rotate, and the second frame will rotate with the second rigid wheel around the central axis, and the power input by the connecting member will be driven by the second rigid wheel. The second frame decelerates the output; a central axis; Two cranks, which are connected to both ends of the central shaft, and the other end of each crank is used to connect a pedal; one toothed disc; a first one-way clutch connected to the central shaft, and the first one-way clutch connected to the toothed plate; a second one-way clutch connected to the second frame, and the second one-way clutch connected to the first one-way clutch; Wherein, the power device also includes: A first auxiliary end cap, which is an annular structure. The periphery of the first auxiliary end cap is fixed to the inside of an outer through hole of the outer end cap. The inside of the first auxiliary end cap is connected to the central axis. The peripheries are pivoted to each other; a second auxiliary end cover, which is fixed to one end of the outer housing, and the second auxiliary end cover and the first one-way clutch are pivotally connected to each other; When the user steps on the two pedals to make the electric bicycle move forward, the two cranks will drive the central axis to rotate in a first direction, and the central axis will drive the first direction. The one-way clutch is actuated to link the gear plate to rotate in the first direction, and the gear plate can drive a rear wheel of the electric bicycle to rotate through a transmission member; Wherein, when the two cranks are driven to rotate in a second direction, the central shaft will rotate in the second direction, and the central shaft will act in conjunction with the first one-way clutch, and the third A one-way clutch will not rotate the toothed plate; the second direction is opposite to the first direction; Wherein, when the driving unit is controlled to act, the driving unit will drive the connecting member to rotate in the first direction, and the flexspline will be driven to repeatedly flexibly deform, and repeatedly flexibly deform. The deformed flexspline will drive the second rigid spline to rotate, the second frame will rotate in the first direction together with the second rigid spline, and the second frame will drive the second rigid spline to rotate. The second one-way clutch is activated to link the first one-way clutch to activate, thereby driving the toothed plate to rotate in the first direction. The power output system of claim 1, wherein the connecting member has a connecting channel that penetrates the connecting member along the central axis; the second frame has a hollow channel, so The hollow channel penetrates the second frame along the central axis; the hollow channel and the connecting channel are interconnected; the power device also includes a lead member, the lead member includes a lead channel, and the lead The channel penetrates the lead member along the central axis. The lead member and the second frame are fixed to each other, and the lead member is not fixed to the connecting member. The lead channel is used to provide at least one wire. settings. The power output system according to claim 1, wherein the second frame and the second rigid wheel are integrally provided, and the first frame and the first rigid wheel are integrally provided; The difference in number between the plurality of first internal tooth-like structures included in the first rigid wheel and the plurality of second internal tooth-like structures included in the second rigid wheel is less than 5 teeth. The power output system of claim 1, wherein the harmonic deceleration module further includes at least four bearings, and the four bearings are respectively defined as a first bearing, a second bearing, a third bearing and An auxiliary bearing, the inner ring structure of the first bearing and the periphery of the connecting member are fixed to each other, the outer ring structure of the first bearing and the first frame are fixed to each other; the inner ring of the second bearing The structure and the periphery of the connecting member are fixed to each other, the outer ring structure of the second bearing and the second frame are fixed to each other; the inner ring structure of the third bearing and the periphery of the second frame are fixed to each other. , the outer ring structure of the third bearing is fixed to the inside of the first frame and the inside of the end cover; wherein, the connecting member, the first bearing, the second bearing, the The third bearing, the first frame, the second frame and the end cover together form a closed space, and the flexspline, the first rigid sprocket, the second rigid spline and the The flexible bearing is located correspondingly in the closed space; the inner ring structure of the auxiliary bearing and the periphery of the connecting member are fixed to each other, and the outer ring structure of the auxiliary bearing and the outer end cover are fixed to each other; wherein, the drive The unit is located in another closed space formed by the connecting member, the first frame, the outer housing, the auxiliary bearing and the outer end cover. The power output system of claim 1, wherein the drive unit is a motor, the motor includes a stator assembly and a rotor assembly, the stator assembly is fixed to the inside of the outer casing, and the rotor assembly The periphery of the connecting member is fixed to each other. When the driving unit is driven, the rotor assembly rotates relative to the stator assembly with the central axis as the center. The power output system according to claim 1, wherein the power device further includes at least one sensor, and the sensor is used to sense at least one of torque, speed, and position when the connecting member rotates. The power output system of claim 6, wherein one of the sensors is a rotary encoder, the rotary encoder includes a reading unit and a magnetic ring, and the reading unit is fixedly disposed on the As for the outer end cover, the magnetic ring is fixedly arranged on the periphery of the connecting member. The power output system of claim 1, wherein the power output system further includes a processing module and a torque sensor, and the processing module is electrically connected to the torque sensor and the drive unit. , the torque sensor is used to sense the torque of the central axis, and generate a torque sensing signal accordingly; when the central axis is driven to rotate in the first direction, and the processing module responds to the torque When the signal is sensed and it is determined that the torque of the central shaft exceeds a predetermined torque value, the processing module will control the driving unit to act so that the second frame drives the second one-way clutch to act. The first one-way clutch drives the toothed plate to rotate in the first direction. The power output system of claim 1, wherein the first one-way clutch includes a first annular member, a first annular wall and a plurality of first rollers, and the first annular member is fixed On the periphery of the central axis, the periphery of the first annular member has a plurality of first protruding structures and a plurality of first grooves, a plurality of the first protruding structures and a plurality of the first grooves. are arranged at intervals from each other, and each of the first grooves is located between two adjacent first protruding structures; the first annular wall is formed in an auxiliary frame, and the auxiliary frame is pivoted On the periphery of the central axis, the second one-way clutch is connected to the auxiliary frame, and one end of the auxiliary frame is connected to the gear plate; each of the first grooves has two first arcs. surfaces, the curvatures of the two first arc surfaces are different; when the central axis is driven to rotate in the first direction, each of the first rollers will be located on one of the first arc surfaces and the between the first annular walls, and each first roller will be held by the first annular member and the first annular wall, and the first annular wall will move in the same direction as the central axis The rotation in the first direction drives the gear plate to rotate in the first direction; when the central shaft is driven to rotate in the second direction, each of the first rollers will be driven to rotate in another direction. The first arc surface and the first annular wall rotate between each other, and the first annular wall will not be linked by the central axis. The power output system of claim 9, wherein the second one-way clutch includes a second annular member, a second annular wall and a plurality of second rollers, and the second annular member forms On one side of the second frame, the periphery of the second annular member has a plurality of second protruding structures and a plurality of second grooves, and a plurality of the second protruding structures and a plurality of the The second grooves are spaced apart from each other, and each second groove is located between two adjacent second protruding structures; the second annular wall is formed on the auxiliary frame; The second groove has two second arc surfaces, and the arcs of the two second arc surfaces are different; when the drive unit is driven to drive the second frame to rotate in the first direction, each The second roller will be located between one of the second arcuate surfaces and the second annular wall, and each of the second rollers will be separated by the second annular member and the second annular wall. The second annular wall is held in place, and the second annular wall will rotate in the first direction together with the second frame, thereby linking the toothed plate to rotate in the first direction. An electric bicycle, which includes: the power output system as described in claim 1, the frame set, a processing module and a power system, the frame set is provided with a frame, a handle, a front wheel, the Rear wheels, seat cushions, a braking system and the transmission parts; the power output system is provided on the frame set; the processing module is electrically connected to the drive unit; the power system is electrically connected to all As for the processing module, the power system is used to provide the power required for the operation of the power output system. The electric bicycle according to claim 11, wherein the power output system further includes a processing module and a torque sensor, and the processing module is electrically connected to the torque sensor and the drive unit, The torque sensor is used to sense the torque of the central axis, and generate a torque sensing signal accordingly; when the central axis is driven to rotate in the first direction, and the processing module responds to the torque sense When the signal is detected and it is determined that the torque of the central shaft exceeds a predetermined torque value, the processing module will control the driving unit to act so that the second frame drives the second one-way clutch to act, thereby passing the The first one-way clutch drives the toothed plate to rotate in the first direction. The electric bicycle according to claim 11, wherein the first one-way clutch includes a first annular member, a first annular wall and a plurality of first rollers, and the first annular member is fixed on The periphery of the central axis and the first annular member have a plurality of first protruding structures and a plurality of first grooves, and the plurality of first protruding structures and the plurality of first grooves are mutually exclusive. are arranged at intervals, and each of the first grooves is located between two adjacent first protruding structures; the first annular wall is formed in an auxiliary frame, and the auxiliary frame is pivotally connected to On the periphery of the central axis, the second one-way clutch is connected to the auxiliary frame, and one end of the auxiliary frame is connected to the gear plate; each of the first grooves has two first arc surfaces. , the curvatures of the two first arc surfaces are different; when the central axis is driven to rotate in the first direction, each of the first rollers will be located on one of the first arc surfaces and the third arc surface. between an annular wall, and each first roller will be held by the first annular member and the first annular wall, and the first annular wall will move toward the center axis along with the central axis. The first direction of rotation drives the gear plate to rotate in the first direction; when the central shaft is driven to rotate in the second direction, each of the first rollers will be driven to rotate in the other direction. The first arc surface and the first annular wall rotate between each other, and the first annular wall will not be linked by the central axis. The electric bicycle according to claim 13, wherein the second one-way clutch includes a second annular member, a second annular wall and a plurality of second rollers, the second annular member is formed on On one side of the second frame, the periphery of the second annular member has a plurality of second protruding structures and a plurality of second grooves, and a plurality of the second protruding structures and a plurality of the second grooves. Two grooves are spaced apart from each other, and each of the second grooves is located between two adjacent second protruding structures; the second annular wall is formed on the auxiliary frame; each of the The second groove has two second arc surfaces, and the arcs of the two second arc surfaces are different; when the driving unit is driven to drive the second frame to rotate in the first direction, each The second roller will be located between one of the second arcuate surfaces and the second annular wall, and each of the second rollers will be separated by the second annular member and the second annular wall. The wall is fixed, and the second annular wall will rotate in the first direction together with the second frame, thereby linking the toothed plate to rotate in the first direction. The electric bicycle according to claim 14, wherein the power device further includes a first auxiliary bearing, a second auxiliary bearing and a third auxiliary bearing, and the inner ring structure of the first auxiliary bearing is in contact with the central axis. The peripheries of the first auxiliary bearing are fixed to each other, and the outer ring structure of the first auxiliary bearing and the inner wall of the outer perforation formed by the outer end cover are fixed to each other; the inner ring structure of the second auxiliary bearing is fixed to the periphery of the auxiliary frame. mutually fixed, the outer ring structure of the second auxiliary bearing and the inner side of the second auxiliary end cover are fixed to each other; the inner ring structure of the third auxiliary bearing and the periphery of the central shaft are fixed to each other, the third auxiliary bearing The outer ring structure of the bearing and the inside of the auxiliary frame are fixed to each other.

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