Electronic bicycle derailleur

Abstract

The utility model discloses a bicycle electronic speed changer, include: battery unit, it includes battery body, connecting rod unit is equipped with accommodating cavity, and battery body part is fitted in accommodating cavity, and the first end of battery body projects accommodating cavity and is equipped with the installation body, the installation body is connected on the pin shaft, and the pin shaft is equipped with the elastic stop piece, and the elastic stop piece is used for the battery body and is located in accommodating cavity and is resisted and limited, through pin shaft and torsional spring are connected base unit, outer connecting rod subassembly and battery unit simultaneously, can realize the installation connection of battery unit, make battery unit can be close to base unit, reduce the interval of battery unit and base unit, be convenient for realizing the lead wire. Battery unit is fitted in the accommodating cavity of outer connecting rod subassembly, and battery unit is located between inner connecting rod subassembly and outer connecting rod subassembly, can increase the hidden nature of battery unit installation, can avoid the protruding of battery unit, effectively avoid battery unit and be knocked off.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, and more specifically to an electronic bicycle transmission. Background Technology

[0002] Current electronic shifting rear derailleur designs mostly employ a semi-wireless approach. The battery is installed in the seatpost, with a cable running from the seatpost through the frame, exiting from the chainstays, and connecting to the rear derailleur to power it. This method is difficult to execute, and some frame cables cannot be easily routed through. Another approach involves mounting the battery at the base of the rear derailleur, where the battery protrudes at the rear and is prone to detachment during riding. Yet another approach places the battery on the derailleur linkage, which protects the battery from impacts, but requires a larger and heavier derailleur. Furthermore, the linkage's frequent battery movement during shifting can cause instability. Summary of the Invention

[0003] The purpose of this invention is to provide an electronic bicycle gearbox to at least partially solve the technical problems mentioned in the background art.

[0004] Therefore, this utility model provides a bicycle electronic gearbox, including a base unit, a movable unit, and a linkage unit, wherein the base unit, the linkage unit, and the movable unit are hinged together by a pin; it also includes: A battery cell, which includes a battery body; The linkage unit is provided with a receiving cavity, the battery body part is fitted into the receiving cavity, and the first end of the battery body extends out of the receiving cavity and is provided with a mounting body; The mounting body is connected to one of the pins, and the pin is provided with an elastic limiting member, which is used to keep the battery body in contact with and limited within the receiving cavity.

[0005] Preferably, the elastic limiting member includes a torsion spring, which is sleeved on the pin; one torsion bar of the torsion spring abuts against the first end of the battery body, and the other torsion bar abuts against the base unit.

[0006] Preferably, the linkage unit includes an outer linkage assembly and an inner linkage assembly, the receiving cavity is formed within the outer linkage assembly, the battery body is fitted within the receiving cavity, and the battery body is located between the outer linkage assembly and the inner linkage assembly.

[0007] Preferably, the external connecting rod assembly includes a connecting plate, with side plates on both sides of the connecting plate, an opening at the first end of the connecting plate, and an end plate at the second end of the connecting plate. The connecting plate, the two side plates, and the end plate form the receiving cavity.

[0008] Preferably, the first end of the battery body extends out of the receiving cavity from the opening, and the second end of the battery body abuts against the inner side of the end plate.

[0009] Preferably, the external linkage assembly includes two first external linkages, which extend from the first ends of the two side plates respectively; The mounting body is located between the two first outer connecting rods, and the pin passes through and connects the mounting body and the two first outer connecting rods.

[0010] Preferably, the base unit includes two first base connecting blocks, and the pin passes through and connects the two first base connecting blocks.

[0011] Preferably, the external connecting rod assembly includes two second external connecting rods, which extend from both ends of the end plate respectively; the two second external connecting rods are hinged to the base unit.

[0012] Preferably, the inner link assembly includes a first inner link and a second inner link, the first ends of the first inner link and the second inner link are hinged to the base unit, and the second ends of the first inner link and the second inner link are hinged to the movable unit.

[0013] Preferably, the battery body has a connector and a charging port on each of its two sides, and both the connector and the charging port are exposed outside the receiving cavity.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are: This application connects the base unit, the outer linkage assembly, and the battery unit simultaneously using a pin and a torsion spring. On the one hand, this allows for the installation and connection of the battery unit, enabling it to be close to the base unit, reducing the distance between the battery unit and the base unit, facilitating the wiring, and is not limited by the specific structure of the bicycle frame. On the other hand, this allows the bicycle electronic derailleur structure of this application to be compact and centralized, with a reasonable structural design.

[0015] The battery unit of this application is fitted into the receiving cavity of the outer connecting rod assembly, and the battery unit is located between the inner connecting rod assembly and the outer connecting rod assembly. This can increase the concealment of the battery unit installation, avoid the protrusion of the battery unit, and effectively prevent the battery unit from being knocked off by impact.

[0016] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of one embodiment of the electronic bicycle gearbox of this utility model; Figure 2This is one of the partial structural schematic diagrams of an embodiment of the electronic bicycle gearbox of this utility model; Figure 3 This is a second partial structural schematic diagram of one embodiment of the electronic bicycle gearbox of this utility model; Figure 4 This is a schematic diagram of the structure of one embodiment of the external connecting rod assembly and battery unit of this utility model; Figure 5 This is a schematic diagram of one embodiment of the external connecting rod assembly of this utility model; Figure 6 This is a second structural schematic diagram of an embodiment of the external connecting rod assembly of this utility model; Figure 7 This is a schematic diagram of the structure of one embodiment of the battery cell of this utility model; Figure 8 This is a schematic diagram of the structure of one embodiment of the internal connection unit of this utility model; Figure 9 This is a schematic diagram of the structure of one embodiment of the base unit of this utility model; Figure 10 This is a structural schematic diagram of one embodiment of the movable unit of this utility model; Figure label: Base unit 10, first base connecting block 11, second base connecting block 12; Movable unit 20, first movable connecting block 21, second movable connecting block 22; Chain guide assembly 30; Battery cell 40, battery body 41, mounting body 42, connector 43, charging port 44; Torsion spring 50, torsion bar 51; External connecting rod assembly 60, connecting plate 61, side plate 62, end plate 63, first external connecting rod 64, second external connecting rod 65; Inner link assembly 70, first inner link 71, second inner link 72; Lead wire 80, first pin 81, second pin 82, third pin 83, fourth pin 84. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] This application provides an electronic bicycle gearbox that can be applied to the frame of a bicycle.

[0020] like Figures 1-10As shown, the bicycle electronic gearbox of this application includes a base unit 10, a movable unit 20, a chain guide unit 30, a linkage unit, and a battery unit 40. The base unit 10, the linkage unit, and the movable unit 20 are sequentially hinged together by pins.

[0021] The base unit 10 is used to fix it to the frame of the cycling equipment.

[0022] The chain guide unit 30 is connected to the movable unit 20.

[0023] The base unit 10 houses a drive unit, and the housing of the drive unit and the base unit 10 are an integral structure. The battery unit 40 is used to power the drive unit.

[0024] In some embodiments of this application, the battery unit includes a battery body 41, a connecting rod unit has a receiving cavity, the battery body 41 is partially fitted into the receiving cavity, and a mounting body 42 is provided at the end of the battery body 41 extending out of the receiving cavity (the end of the battery body 41 extending out of the receiving cavity is the first end of the battery body 41). The mounting body 42 is connected to one of the pins, and an elastic limiting member is connected to the pin. The elastic limiting member is used to abut and limit the battery body 42 within the receiving cavity.

[0025] The elastic limiting component includes a torsion spring 50, which is sleeved on the pin, and both torsion bars of the torsion spring 50 abut against the first end of the battery body 41.

[0026] One torsion bar 51 of the torsion spring 50 abuts against the first end of the battery body 41 (the first end of the battery body 41 is the end of the battery body 41 that extends out of the receiving cavity), and the other torsion bar 51 of the torsion spring 50 abuts against the base unit 10. The torsion spring 50 can apply a resisting force to the battery body 41, and the resisting force is directed towards the second end of the battery body 41 (the second end of the battery body 41 is the end of the battery body 41 that extends into and fits into the receiving cavity), so that the battery body 41 can be resisted and limited in the receiving cavity, that is, the battery unit 40 can be limited and fixed in the connecting rod unit to realize the installation of the battery unit 40.

[0027] In existing electronic rear derailleurs, taking a semi-wireless solution as an example, the battery unit is installed in the seatpost of the cycling equipment frame. A cable is led from the seatpost, passes through the inside of the cycling equipment frame, and comes out from the chainstay to connect with the electronic rear derailleur of the bicycle to power the electronic rear derailleur. During the installation process, it is difficult to thread the cable, and some frame cables cannot be threaded out smoothly.

[0028] In some embodiments of this application, the battery unit is mounted on the connecting rod unit, so that the battery unit and the base unit 10 are positioned close to each other, making it easier for the lead wire 80 to connect the battery unit 40 and the base unit 10.

[0029] In summary, by connecting the battery unit 40 to the linkage unit, this application enables quick and portable installation of the battery unit 40. The battery unit 40 is used to supply power to the base unit 10. This application allows the battery unit 40 to be installed close to the base unit 10, making the distance between the two closer, facilitating the connection of the lead wire 80, and is not limited by the specific structure of the bicycle frame.

[0030] The linkage unit includes an outer linkage assembly 60 and an inner linkage assembly 70. In some embodiments of this application, the receiving cavity is formed inside the outer linkage assembly 60, and the battery unit 30 is installed inside the outer linkage assembly 60. The battery unit 30 is located between the outer linkage assembly 60 and the inner linkage assembly 70, which can increase the concealment of the battery unit 40 installation, avoid the protrusion of the battery unit 40, and effectively prevent the battery unit 40 from being knocked off.

[0031] In some embodiments of this application, the external connecting rod assembly 60 is a single piece, which makes the external connecting rod assembly 60 structurally stable and reliable, and has a long service life.

[0032] Specifically, the external connecting rod assembly 60 includes a connecting plate 61, with side plates 62 on both sides of the connecting plate 61, the two side plates 62 corresponding to each other, an opening at the first end of the connecting plate 61, and an end plate 63 at the second end of the connecting plate 61; the connecting plate 61, the two side plates 62 and the end plate 63 form a receiving cavity, and the opening at the first end of the connecting plate 61 is the opening of the receiving cavity.

[0033] Both side plates 62 and end plates 63 are positioned toward the inner link assembly 70, such that the receiving cavity is positioned toward the inner link assembly 70, thereby allowing the battery unit 40 installed in the receiving cavity to be located between the outer link assembly 60 and the inner link assembly 70.

[0034] The battery body 41 is partially fitted into the receiving cavity. The first end of the battery body 41 can extend out of the receiving cavity from the end opening of the receiving cavity, and two sides of the battery body 41 protrude out of the receiving cavity. The width of the side of the battery body 41 protruding out of the receiving cavity is about two-thirds of the width of the side of the battery body 41.

[0035] The battery body 41 exposed in the cavity has a connector 43 and a charging port 44 on its two sides respectively. The connector 43 is used to connect the lead wire 80, and the charging port 44 can be a magnetic charging port, which can facilitate charging.

[0036] Both connector 43 and charging port 44 are exposed outside the receiving cavity, which facilitates the connection and charging of lead 80.

[0037] In some embodiments of this application, the pin connecting the mounting body 42 is defined as the first pin 81, that is, the pin that hinges the first end of the outer connecting rod assembly 60 to the base unit 10 is the first pin 81.

[0038] The external linkage assembly 60 also includes two first external linkages 64, which extend from the first ends of the two side plates 62 respectively.

[0039] The mounting body 42 can be a plate-shaped structure protruding from the extended end of the battery body 41. The mounting body 42 is located between the two first external connecting rods 64. The mounting body 42 and the two first external connecting rods 64 are provided with corresponding through holes. The first pin 81 passes through and connects the mounting body 42 and the through holes of the two first external connecting rods 64.

[0040] The base unit 10 is provided with two first base connecting blocks 11, and the two first base connecting blocks 11 are also provided with corresponding through holes. The first pin 81 also passes through the through holes on the two first base connecting blocks 11.

[0041] In some embodiments of this application, the base unit 10, the first end of the outer connecting rod assembly 60, and the first end of the battery unit 30 are simultaneously connected by a pin and a torsion spring 50. On the one hand, this enables the battery unit 40 to be installed and connected, allowing the battery unit 40 to be close to the base unit 10 and reducing the distance between the battery unit 40 and the base unit 10. On the other hand, this makes the bicycle electronic gearbox structure of this application compact and centralized, with a reasonable structural design.

[0042] In some embodiments of this application, the pin that hinges the second end of the outer connecting rod assembly 60 to the movable unit 20 is the second pin 82.

[0043] The external linkage assembly 60 also includes two second external linkages 65, which extend from both ends of the end plate 63.

[0044] The movable unit 20 includes a first movable connecting block 21, which is located between two second outer connecting rods 65. Corresponding through holes are provided between the first movable connecting block 21 and the two second outer connecting rods 65. A second pin 82 is connected through the through holes between the first movable connecting block 54 and the two second outer connecting rods 65, which can realize the hinge between the second end of the outer connecting rod assembly 60 and the movable unit 20.

[0045] The inner link assembly 70 is a single piece, which makes the inner link assembly 70 structurally stable and reliable, and has a long service life.

[0046] In some embodiments of this application, the pin that hinges the first end of the inner link assembly 70 to the base unit 10 is the third pin 83, and the pin that hinges the second end of the inner link assembly 70 to the movable unit 20 is the fourth pin 84.

[0047] The inner link assembly 70 includes a first inner link 71 and a second inner link 72. The two inner links 71 are connected as one unit. The connection method can be a common method in this technical field and is not specifically limited here.

[0048] The first ends of the first inner link 71 and the second inner link 72 are hinged to the base unit 10, and the second ends of the first inner link 71 and the second inner link 72 are hinged to the movable unit 20.

[0049] Specifically, the base unit 10 includes a second base connecting block 12, which is located between the first ends of the two inner connecting rods 71. The second base connecting block 12, the first end of the first inner connecting rod 71, and the first end of the second inner connecting rod 72 are provided with corresponding through holes. A third pin 83 is connected through the through holes on the second base connecting block 12, the first end of the first inner connecting rod 71, and the first end of the second inner connecting rod 72, thereby enabling the hinge connection between the first end of the inner connecting rod assembly 70 and the base unit 10.

[0050] Specifically, the movable unit 20 includes two second movable connecting blocks 22, which are located between the second ends of the first inner connecting rod 71 and the second inner connecting rod 72. Corresponding through holes are provided on the two second movable connecting blocks 22, the second ends of the first inner connecting rod 71 and the second ends of the second inner connecting rod 72. A fourth pin 84 is connected through the through holes on the two second movable connecting blocks 22, the second ends of the first inner connecting rod 71 and the second ends of the second inner connecting rod 72, thereby enabling the hinge connection between the second end of the inner connecting rod assembly 70 and the movable unit 20.

[0051] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A bicycle electronic derailleur, comprising a base unit, a movable unit, and a linkage unit, wherein the base unit, the linkage unit, and the movable unit are sequentially hinged together by pins; characterized in that, Also includes: A battery cell, which includes a battery body; The linkage unit is provided with a receiving cavity, the battery body part is fitted into the receiving cavity, and the first end of the battery body extends out of the receiving cavity and is provided with a mounting body; The mounting body is connected to one of the pins, and the pin is provided with an elastic limiting member, which is used to keep the battery body in contact with and limited within the receiving cavity.

2. The bicycle electronic gearbox as described in claim 1, characterized in that, The elastic limiting member includes a torsion spring, which is sleeved on the pin; one torsion bar of the torsion spring abuts against the first end of the battery body, and the other torsion bar abuts against the base unit.

3. The bicycle electronic derailleur as described in claim 1, characterized in that, The linkage unit includes an outer linkage assembly and an inner linkage assembly. The receiving cavity is formed inside the outer linkage assembly, and the battery body is fitted inside the receiving cavity, with the battery body located between the outer linkage assembly and the inner linkage assembly.

4. The bicycle electronic derailleur as described in claim 3, characterized in that, The outer connecting rod assembly includes a connecting plate, with side plates on both sides of the connecting plate, an opening at the first end of the connecting plate, and an end plate at the second end of the connecting plate; the side plates and the end plates are both positioned towards the inner connecting rod assembly, and the connecting plate, the two side plates, and the end plates form the receiving cavity.

5. The bicycle electronic gearbox as described in claim 4, characterized in that, The first end of the battery body extends out of the receiving cavity from the opening, and the second end of the battery body abuts against the inner side of the end plate.

6. The bicycle electronic gearbox as described in claim 4, characterized in that, The external linkage assembly includes two first external linkages, which extend from the first ends of the two side plates respectively. The mounting body is located between the two first outer connecting rods, and the pin passes through and connects the mounting body and the two first outer connecting rods.

7. The bicycle electronic gearbox as described in claim 6, characterized in that, The base unit includes two first base connecting blocks, and the pin connects the two first base connecting blocks through.

8. The bicycle electronic derailleur as described in claim 4, characterized in that, The external linkage assembly includes two second external linkages, which extend from both ends of the end plate, respectively. The two second outer connecting rods and the base unit are hinged together.

9. The bicycle electronic derailleur as described in claim 3, characterized in that, The inner link assembly includes a first inner link and a second inner link, the first ends of the first inner link and the second inner link are hinged to the base unit, and the second ends of the first inner link and the second inner link are hinged to the movable unit.

10. The bicycle electronic derailleur as claimed in claim 1, characterized in that, The battery body has a connector and a charging port on each of its two sides, and both the connector and the charging port are exposed outside the receiving cavity.

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