TWI602740B - Torque-aware electric bicycle drive assembly - Google Patents

Description

Twist-sensing electric bicycle drive assembly

The invention relates to an electric bicycle driving assembly with torque sensing, in particular to a torque detecting mechanism combined with a pedal shaft of a bicycle, and a torque detecting mechanism for detecting a rotating torque generated by the pedal shaft as Control and drive basis; when the torque detecting mechanism detects the rotational torque generated by the pedal shaft, the torque detecting mechanism generates a signal to the controller module to start and control the motor assembly, and the motor assembly transmits The rotation of the clutch and the clutch mechanism drives the toothed disc of the bicycle to rotate, and the bicycle can be started in the motor assembly according to the torque generated by the rider's pedal, which is used as an auxiliary for the electric power, and perfectly fits the bicycle in various kinds. Environmental riding needs.

With the promotion of factors such as quality of life and health, coupled with changes in lifestyles, people are paying more and more attention to the quality of leisure life; therefore, more and more people choose bicycles that are less energy-intensive as a means of transportation. Or it is the main tool for leisure and sports; when it comes to bicycles, because it can combine both physical fitness and environmental protection, riding bicycles has become a new trend and fashion for modern sports, leisure and family fun. .

However, although riding a bicycle can be strong, but for older elders or younger children, if you ride a bicycle for a long time or encounter an uphill... Both the environment and the terrain will cause excessive physical load. Therefore, the manufacturer has developed a bicycle with power assistance; the conventional electric bicycle is mainly on the bicycle frame, and an electric motor is additionally installed, and the power of the electric motor is driven by the transmission mechanism to rotate the bicycle wheel. It also means that the bicycle is driven by an electric motor in the simplest transmission mode, so as to reduce the physical effort required for the user to ride the bicycle.

However, the conventional electric bicycle can only control the starting of the electric motor in a passive manner. That is, the conventional electric bicycle mainly sets the controller for controlling the starting of the electric motor to the bicycle handle position, resulting in the electric motor of the conventional electric bicycle, which can only be completely It can be started by the user operating the controller; thus, when the user does not know how to operate the controller, the electric motor cannot be started; or, when the user rides the conventional electric bicycle, Pay attention to the road ahead, and also must focus on the operation of the controller, which may cause the user to be distracted by the electric bicycle and cause danger.

Further, as disclosed in the invention of the Republic of China Patent No. I426035, a clutch type bicycle electric drive device and a clutch type drive thereof and an invention manual disclosed in the publication No. TW201350383 disclose a carrier transmission system mainly for a transmission assembly. Arranging and assembling in sequence; in this way, the structure can not be simplified and reduced, which inevitably leads to an excessive span width between the left and right pedals of the bicycle, and the utility of the better span cannot be obtained; It also causes a large number of components of the transmission components, thereby increasing the part cost and assembly man-hour.

In order to solve the problems and defects of the above prior art, the present invention discloses a torque A sensing electric bicycle driving assembly, especially a bicycle frame, comprising a torque detecting mechanism, a clutch mechanism, a set of components, a pedal shaft and a motor assembly; the motor assembly is combined There is a body, which is combined with the frame and the frame of the motor assembly. The motor assembly is internally provided with a controller 4 module. The torsion detecting mechanism is provided with a sensing portion and a torsion detecting component, and the torque detecting component is electrically connected. Connected to the sensing part and the controller module, the torsion detecting component is used for detecting the change value of the sensing part and generating a signal, and transmitting the signal to the controller module, which is started by the controller module and controlled by the total motor In addition, the torsion detecting mechanism, the clutch mechanism and the fitting are sequentially combined and then disposed by the pedal shaft and disposed inside the seat; the pedal shaft drives the torque detecting mechanism to rotate, and the torque detection is performed. The mechanism drives the clutch mechanism to rotate, and then the clutch mechanism drives the turntable of the bicycle to rotate; further, the motor assembly drives the sleeve to rotate, and the sleeve member drives the clutch mechanism and the bicycle turntable to rotate.

The technical feature of the present invention is that the pedal shaft drives the torque detecting mechanism to rotate, and when the torque detecting mechanism detects the rotating torque, the torque detecting mechanism generates a signal to the controller module for starting and controlling the motor. The assembly is further driven by the motor assembly to drive the clutch member and the clutch mechanism respectively, and the clutch mechanism drives the toothed disc of the bicycle to rotate, so that the torque of the bicycle can be started according to the rider's pedal power, and the motor is started. The assembly is supplemented by the power of the motor assembly and is matched with manpower to achieve the dual-power simultaneous drive effect to reduce the physical effort required by the user.

At the same time, it is also possible to prevent the user from operating the electric door controller, so that the motor assembly motor cannot be started; and avoiding the user having to pay attention to the front road condition when riding the electric bicycle, it is also necessary to focus on the electric door controller. The operation makes it easy for the user to distract from riding the electric bicycle.

Moreover, the present invention combines the torque detecting mechanism, the clutch mechanism and the sleeve member to each other to achieve the driving assembly and the combined design, thereby obtaining a simplified and reduced overall structure, and effectively reducing the left and right pedals of the bicycle. The span width between the plates achieves better span utility; at the same time, the components required to drive the assembly are reduced, thereby reducing production costs and assembly man-hours.

1‧‧‧Torque Detection Agency

11‧‧‧ base

12‧‧‧Induction Department

13‧‧‧First engagement department

14‧‧‧Torque detecting element

2‧‧‧Clutching agency

21‧‧‧ housing

22‧‧‧Second engagement department

23‧‧‧First bearing

231‧‧ Third Third Joint Department

24‧‧‧One-way ring

241‧‧‧Fourth Joint Department

242‧‧‧ Groove

243‧‧ ‧ spring

244‧‧‧Block

245‧‧‧ cover

246‧‧‧Locking components

25‧‧‧First lock

26‧‧‧Second bearing

3‧‧‧ fittings

31‧‧‧First bevel gear

32‧‧‧The Fifth Joint Department

33‧‧‧ Third bearing

4‧‧‧ pedal shaft

41‧‧‧The Sixth Joint Department

42‧‧‧Combination Department

5‧‧‧ toothed disc

51‧‧‧Second lock

6‧‧‧First joint

61‧‧‧ Third lock

62‧‧‧fourth lock

7‧‧‧Motor assembly

71‧‧‧Second bevel gear

8‧‧‧ body

81‧‧‧fourth bearing

82‧‧‧ cover

The first figure is a schematic diagram of a combination of the electric bicycle driving assembly with torque perception according to the present invention.

The second figure is an exploded view of the electric bicycle driving assembly with torque perception according to the present invention.

The third figure is an exploded view of the clutch mechanism of the electric bicycle driving assembly with torque perception of the present invention.

The fourth figure is a perspective view of the torque detecting mechanism of the electric bicycle driving assembly with torque perception of the present invention.

Fig. 5 is a front view showing the torsion detecting mechanism of the electric bicycle driving assembly with torque perception according to the present invention.

Fig. 6 is a schematic view showing the shaft of the electric bicycle driving assembly with torque perception according to the present invention.

Figure 7 is a front view of a combination of the electric bicycle driving assembly with torque perception of the present invention.

The eighth figure is a sectional view of a combination of the electric bicycle driving assembly with torque perception of the present invention.

The features and advantages of the present invention will be described in detail in conjunction with the accompanying drawings. The viewpoint of the present invention will be further described in detail, but The scope of the invention is not limited by any point of view.

Referring to the first to eighth figures, the present invention discloses a torque-sensing electric bicycle driving assembly, in particular, a bicycle frame, the electric bicycle driving assembly includes: a torque detecting The mechanism 1, a clutch mechanism 2, a set of components 3, a pedal shaft 4 and a motor assembly 7.

The torsion detecting mechanism 1 is provided with a base portion 11. One sensing portion 12 is disposed on one side of the base portion 11 and a first engaging portion 13 is disposed on the other side thereof, and the base portion 11 is provided with a torsion detecting component 14 and a torsion detecting component. 14 is electrically connected to the sensing portion 12, and the torsion detecting component 14 is configured to detect a torque variation value of the sensing portion 12 and generate a signal. The torque change value detection of the sensing portion 12 can be utilized by applying a strain gauge to the position where the inner shaft and the outer ring of the sensing portion 12 are subjected to the shearing force, thereby obtaining the torque variation value.

The clutch mechanism 2 is combined with a torque detecting mechanism 1 including a housing 21, a first bearing 23, and a unidirectional ring body 24 (as shown in the third figure). The housing 21 is configured to be coupled to the frame of the bicycle, and the inner wall surface of the housing 21 is provided with a second engaging portion 22, the first bearing 23 is coupled to the second engaging portion 22 inside the housing 21, and the first bearing 23 A third engaging portion 231 is disposed on the inner wall surface. The third engaging portion 231 is coupled to the first engaging portion 13 to rotate the torque detecting mechanism 1 to the clutch mechanism 2, and the one-way ring body 24 is coupled to the inner ring portion. The inside of the housing 21 is located on the side of the second engaging portion 22, and the unidirectional ring body 24 is provided with a fourth engaging portion 241 on the inner wall surface thereof, and the housing 21 is convexly provided with a plurality of first locking portions 25, and The housing 21 is externally coupled to a second bearing 26. The unidirectional ring body 24 is provided with a plurality of grooves 242 spaced apart from the outer ring wall surface, and a spring 243 and a block 244 are disposed in each of the grooves 242, and the unidirectional ring body 24 is further provided with a cover plate 245 and a cover. Board 245 utilizes multiple locks The solid element 246 is locked to the side of the unidirectional ring body 24 facing the outside of the housing 21, and the unidirectional ring body 24 can be fixedly disposed in the housing 21 through the cover plate 245, and the unidirectional ring body 2 is oriented in one direction by the spring 243 The block 244 is pressed such that the unidirectional ring 2 has a single direction rotation mechanism within the housing 21.

The sleeve member 3 is combined with the clutch mechanism 2, and the sleeve member 3 is externally coupled with a first bevel gear 31 and a fifth engaging portion 32. The fifth engaging portion 32 and the one-way ring body 24 are The fourth engaging portion 241 is combined; and the fitting member 3 is respectively provided with a third bearing 33 inside the two ports thereof.

The pedal shaft 4 is used for the torque detecting mechanism 1, the clutch mechanism 2 and the sleeve member 3. The pedal shaft 4 is externally provided with a sixth engaging portion 41, and the sixth engaging portion 41 and the torque detecting mechanism. The sensing portion 12 of the first embodiment is combined, and the pedal shaft 4 is provided with a joint portion 42 at both ends thereof for coupling with a pedal crankshaft. When the pedal shaft 4 is inserted through the sleeve member 3, the pedal shaft 4 can be combined with the third bearing 33 of the sleeve member 3 in sequence, so that the sleeve member 3 rotates with the pedal shaft 4 as an axis. .

The motor assembly 7 is internally provided with a controller module. The torque detecting component 14 of the torque detecting mechanism 1 is electrically connected to the controller module, and the motor assembly 7 has a body 8 at one end thereof. A second bevel gear 71 is connected, and the second bevel gear 71 is placed inside the seat body 8. The clutch mechanism 2, the sleeve member 3 and the pedal shaft 4 are respectively mounted inside the seat body 8 to make the sleeve member The first bevel gear 31 of the third mesh gear 31 meshes with the second bevel gear 71 so that the motor assembly 7 can drive the sleeve member 3 to rotate, and the joint portions 42 of the pedal shaft 4 extend from the outside of the seat body 8, respectively. The seat body 8 is further provided with at least a fourth bearing 81. When the pedal shaft 4 passes through the seat body 8, the pedal shaft 4 can be combined with the fourth bearing 81. The seat body 8 is far A cover 82 may be coupled to one side of the torsion detecting mechanism 1.

The bicycle frame is provided with a toothed disc 5, and a plurality of second locking portions 51 are disposed on the inner edge of the toothed disc 5, and are coupled to a first coupling member 6 through the plurality of second locking portions 51, the first coupling member 6 respectively, a plurality of third locking portions 61 and a plurality of fourth locking portions 62 are provided, and the plurality of third locking portions 61 are respectively combined with the plurality of second locking portions 51, and the plurality of fourth locking portions 62 are respectively associated with The plurality of first locking portions 25 are combined such that the clutch mechanism 2 can drive the toothed disc 5 to rotate.

When the pedal shaft 4 is driven to rotate by the human power, the sixth engaging portion 41 of the pedal shaft 4 drives the torque detecting mechanism 1 to rotate, and the first engaging portion 13 of the torque detecting mechanism 1 drives the clutch mechanism 2 to rotate, clutching The plurality of first locking portions 25 of the mechanism 2 drive the toothed disc 5 to rotate.

When the motor assembly 7 is started, the second bevel gear 71 of the motor assembly 7 rotates with the first bevel gear 31 and the sleeve member 3 respectively, and the fifth engaging portion 32 of the sleeve member 3 drives the one-way ring body 24 The clutch mechanism 2 is driven to rotate, and the pedal shaft 4 can be maintained in a non-rotating state, and the plurality of first locking portions 25 of the clutch mechanism 2 drive the toothed disc 5 to rotate.

Thereby, the pedal shaft 4 is driven by the human power to drive the torque detecting mechanism 1 to rotate. When the torsion detecting component 14 of the torque detecting mechanism 1 detects that the sensing portion 12 is subjected to the rotating torque, the torque detecting component 1 generates a The signal is transmitted to the controller module of the motor assembly 7, and the controller module is used to start and control the motor assembly 7, and the second bevel gear 71 is rotated by the motor assembly 7 to drive the first bevel gear 31, the first umbrella The gear 31 drives the sleeve member 3, and the sleeve member 3 drives the clutch mechanism 2 and drives the toothed disc 5 to rotate. The bicycle can be started in the motor assembly 7 according to the torque generated by the pedal when riding; thus, by the total motor The power of the 7 is used as a power-sinking (the confluence of both human and electric power), and it is combined with manpower to achieve the dual-power simultaneous drive effect to reduce the physical effort required by the user.

At the same time, it can avoid the user not knowing how to operate the electric door controller, so that the motor assembly motor can not be started; and avoiding the user's need to pay attention to the operation of the electric door controller in addition to the front road condition when riding the electric bicycle. This makes it easy for the user to distract from riding the electric bicycle.

Moreover, the present invention combines the torque detecting mechanism, the clutch mechanism and the sleeve member to each other to achieve the design of the drive assembly and the combination, thereby simplifying and reducing the overall structure, and effectively reducing the left and right pedals of the bicycle. The span width between the plates achieves a better span; at the same time, the components required to drive the assembly are reduced, thereby reducing production costs and assembly man-hours.

The detailed description above is a detailed description of a possible embodiment of the present invention, and the embodiment is not intended to limit the invention, and equivalent implementations or modifications that are not departing from the spirit of the invention should be included in the present invention. In the scope of patents.

1‧‧‧Torque Detection Agency

2‧‧‧Clutching agency

25‧‧‧First lock

26‧‧‧Second bearing

3‧‧‧ fittings

31‧‧‧First bevel gear

32‧‧‧The Fifth Joint Department

33‧‧‧ Third bearing

4‧‧‧ pedal shaft

41‧‧‧The Sixth Joint Department

42‧‧‧Combination Department

5‧‧‧ toothed disc

51‧‧‧Second lock

6‧‧‧First joint

61‧‧‧ Third lock

62‧‧‧fourth lock

7‧‧‧Motor assembly

71‧‧‧Second bevel gear

8‧‧‧ body

81‧‧‧fourth bearing

82‧‧‧ cover

Claims (9)

A torque-sensing electric bicycle driving assembly, in particular, is coupled to a bicycle frame, the bicycle is provided with a toothed disc, and the electric bicycle driving assembly comprises: a torque detecting mechanism, which is provided with a sensing portion and a a torque detecting component, the torque detecting component is electrically connected to the sensing component, wherein the torque detecting component is configured to detect a torque variation value of the sensing component and generate a signal; a clutch mechanism for the toothed disk In combination with the torsion detecting mechanism, the clutch mechanism includes a first bearing and a one-way ring body, and the first bearing is disposed inside the clutch mechanism and combined with the torque detecting mechanism to enable the torque detecting mechanism The first bearing is coupled to the clutch mechanism and is rotatable. The unidirectional ring body is disposed inside the clutch mechanism and is not on one side of the first bearing, and the clutch mechanism is configured to be coupled to the toothed disc. The clutch mechanism is rotated synchronously with the toothed disc; a set of fittings is combined with the one-way ring body of the clutch mechanism, the fitting member is coupled with a driving device, and the fitting member is subjected to the motor assembly belt Turn down and turn When the torque detecting mechanism is rotated manually, the torque detecting mechanism drives the clutch mechanism to rotate, and then the clutch mechanism drives the toothed disc to rotate; and when the torque detecting component detects the sensing portion generates a torque When the value is changed, the torque detecting component generates a signal and transmits it to a controller module, and the controller module starts and controls a motor assembly, so that the motor assembly sequentially drives the component, The clutch mechanism rotates to simultaneously rotate the toothed disc. The torque-sensing electric bicycle driving assembly according to claim 1, wherein the torsion detecting mechanism is provided with a base, and the base portion is provided with the sensing portion and the other side thereof. The first engaging portion is provided with the torque detecting component; the clutch mechanism further includes a casing, and the inner wall surface of the casing is provided with a second engaging portion, and the first bearing is coupled to the inner portion of the casing a second engaging portion, wherein the first bearing inner wall surface is provided with a third engaging portion for engaging with the first engaging portion, the one-way ring body is provided on the inner wall surface thereof a fourth engaging portion, the housing is convexly provided with a plurality of first locking portions, and the first locking portions are combined with the toothed disc; the fitting member is externally provided with a fifth engaging portion, The fifth engaging portion is coupled to the fourth engaging portion of the one-way ring body. The torque-sensing electric bicycle driving assembly according to claim 2, comprising a pedal shaft for inserting the torque detecting mechanism, the clutch mechanism and the fitting member, wherein the pedal shaft is externally disposed The sixth engaging portion is combined with the inner portion of the sensing portion of the torsion detecting mechanism; when the pedal shaft rotates, the sixth engaging portion of the pedal shaft drives the torque detecting portion When the mechanism rotates, the torque detecting mechanism drives the clutch mechanism to rotate, and the clutch mechanism drives the toothed disc to rotate. The torque-sensing electric bicycle driving assembly of claim 3, comprising a motor assembly having a controller module therein, the torque detecting component being electrically connected to the controller module, and The motor assembly has a body coupled to one end and a second bevel gear coupled thereto. The second bevel gear is disposed inside the base body, and the clutch mechanism, the sleeve member and the pedal shaft are respectively disposed inside the seat body. The sleeve member is externally coupled with a first bevel gear, the first bevel gear meshes with the second bevel gear, and the two ends of the pedal shaft extend respectively outside the seat body; when the driving device rotates, The motor assembly rotates the second bevel gear and drives the first bevel gear. The first bevel gear drives the sleeve member, and the sleeve member drives the clutch mechanism to drive the toothed disc to form a rotation. The torque-sensing electric bicycle driving assembly according to claim 3, wherein the two-port inner portion of the fitting member is respectively provided with a third bearing, and the pedal shaft penetrates the fitting member and respectively respectively with the third bearing In combination, the sleeve is rotated about the pedal shaft. The electric bicycle driving assembly according to claim 2, wherein the one-way ring body is provided with a plurality of grooves on the outer ring wall surface, and a spring and a body are disposed in each of the grooves. The unidirectional ring body presses the block body in one direction by the spring, so that the unidirectional ring body has a single direction rotation mechanism in the casing. The torque-sensing electric bicycle driving assembly of claim 6, wherein the one-way ring body is further provided with a cover plate for locking the side of the one-way ring body facing the outside of the housing. The torque-sensing electric bicycle driving assembly according to claim 2, wherein the inner edge of the toothed disc is provided with a plurality of second locking portions, and the second locking portions are combined with a first coupling member, the first a joint member is respectively provided with a plurality of third locking portions and a plurality of fourth locking portions, wherein the third locking portions are respectively combined with the second locking portions, and the fourth locking portions respectively The first locking portion is combined, and the clutch mechanism drives the toothed disc to rotate. The torque-sensing electric bicycle driving assembly according to claim 1, wherein the detecting of the torque change value of the sensing portion is applicable to a position where the inner shaft and the outer ring of the sensing portion are sheared. The strain gauge is used to obtain the torque change value.