Electronic derailleur

Abstract

An electronic derailleur, comprising a base unit, a chain guide unit and a connection rod unit, the base unit being used for connecting to a riding apparatus, the connection rod unit comprising an inner connection rod and an outer connection rod, and the base unit, the inner connection rod, the chain guide unit and the outer connection rod being successively hinged to each other by means of shafts; and further comprising a battery unit, which is connected to two adjacent shafts and used for supplying power to the base unit. The base unit, the inner connection rod, the chain guide unit and the outer connection rod are hinged to each other by means of the shafts, and the battery unit is connected to two adjacent shafts, such that the battery unit is conveniently mounted. The battery unit is used for supplying power to the base unit. The fixing mode for the battery unit allows the mounting position of the battery unit to be close to the position of the base unit, such that the battery unit is relatively stable and safe in position, thus avoiding falling caused by collisions during riding.

Description

An electronic transmission TECHNICAL FIELD

[0001] The present application belongs to the technical field of bicycles, in particular, it relates to an electronic transmission. BACKGROUND

[0002] The existing electric rear derailleur design mostly adopts a semi-wireless scheme. The battery is installed in the seat tube, and a wire is led from the seat tube, through the inside of the frame, out of the rear down tube, connected to the rear derailleur, and powers the rear derailleur. During installation, it is difficult to thread the wire, and the cable of some frames cannot be threaded out smoothly. Another scheme is to install the battery at the base of the rear derailleur. The battery protrudes from the tail and is easy to collide and fall off during riding. Another scheme is to place the battery on the derailleur connecting rod. Although the battery can be protected from collision, the derailleur needs to be larger in size and heavier in weight. Moreover, the derailleur connecting rod will move the battery frequently during shifting, causing unstable operation.

[0003] Therefore, it is a technical problem to be solved to develop an electronic transmission that places the battery assembly at a suitable position of the transmission and is not limited by the specific structure of the bicycle frame, avoids collision, and keeps the battery position relatively stable.

[0004] SUMMARY

[0005] The present application aims to provide an electronic transmission to solve the problem of the battery assembly being easily collided and the relative position being unstable in the prior art.

[0006] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0007] The present application provides an electronic transmission, which comprises a base unit, a chain guide unit, and a connecting rod unit. The base unit is used to connect with a riding device. The connecting rod unit comprises an inner connecting rod and an outer connecting rod. The base unit, the inner connecting rod, the chain guide unit, and the outer connecting rod are sequentially connected by shafts. The electronic transmission further comprises a battery unit connected to the adjacent two shafts, which is used to supply power to the base unit.

[0008] In some embodiments of the present application, the battery unit comprises a battery body and a bracket assembly. When the bracket assembly is in a closed state relative to any of the base unit, the chain guide unit, the inner connecting rod, and the outer connecting rod, the bracket assembly is configured to limit the battery body between the bracket assembly and any of the base unit, the chain guide unit, the inner connecting rod, and the outer connecting rod by connecting to the adjacent two shafts. When the bracket assembly is in an open state relative to any of the base unit, the chain guide unit, the inner connecting rod, and the outer connecting rod, the battery body can be removed from the bracket assembly.

[0009] In some embodiments of the present application, the bracket assembly comprises a fixed battery bracket and a movable battery bracket, the fixed battery bracket is rotatably connected with the movable battery bracket; a first limiting part is formed on the fixed battery bracket, a second limiting part is formed on the shaft corresponding to the position of the first limiting part; the first limiting part is in limiting cooperation with the second limiting part; when the movable battery bracket is in a closed state, a third limiting part is formed on the movable battery bracket, a fourth limiting part is formed on the shaft corresponding to the position of the third limiting part; the third limiting part is in limiting cooperation with the fourth limiting part; when the movable battery bracket is in an open state, the third limiting part and the fourth limiting part are relatively disengaged from the limiting cooperation, so that the battery body can be removed.

[0010] In some embodiments of the present application, the end of the bracket assembly is connected with two adjacent shafts through elastic deformation.

[0011] In some embodiments of the present application, the battery unit further comprises a reset rotating assembly; the fixed battery bracket and the movable battery bracket are hinged through the reset rotating assembly; when the movable battery bracket is in a closed state, the reset rotating assembly is used to drive the first limiting part to be in limiting cooperation with the second limiting part; the reset rotating assembly is also used to drive the third limiting part to be in limiting cooperation with the fourth limiting part; when the movable battery bracket is in an open state, a user pushes the movable battery bracket relative to the fixed battery bracket by external force, and the third limiting part and the fourth limiting part are relatively disengaged from the limiting cooperation, so that the battery body can be removed.

[0012] In some embodiments of the present application, the first limiting part is a first notch formed on the end of the fixed battery bracket; the second limiting part is a first extension formed on the shaft corresponding to the position of the first limiting part; the third limiting part is a second notch formed on the end of the movable battery bracket; the fourth limiting part is a second extension formed on the shaft corresponding to the position of the third limiting part; the reset rotating assembly is used to push the first notch to abut against the first extension; the reset rotating assembly is also used to push the second notch to abut against the second extension.

[0013] In some embodiments of the present application, a guide part is formed on the movable battery bracket close to the fourth limiting part; when the first limiting part and the second limiting part are in limiting cooperation, external force acts on the movable battery bracket to rotate the movable battery bracket relative to the fixed battery bracket, and the guide part moves relative to the fourth limiting part to the limiting cooperation between the third limiting part and the fourth limiting part.

[0014] In some embodiments of this application, the battery unit is disposed adjacent to the outer connecting rod, the outer connecting rod has a first clearance portion formed thereon, and the outer connecting rod, the fixed battery bracket, and the movable battery bracket form a first receiving cavity, the first receiving cavity being used to receive the battery body; or, the battery unit is disposed adjacent to the inner connecting rod, the inner connecting rod has a second clearance portion formed thereon, and the inner connecting rod, the fixed battery bracket, and the movable battery bracket form a second receiving cavity, the second receiving cavity being used to receive the battery body.

[0015] In some embodiments of this application, the movable battery holder has an abutment portion formed thereon, and the battery fixing holder abuts against the abutment portion when the first limiting portion and the second limiting portion are engaged, and the third limiting portion and the fourth limiting portion are engaged. And / or, the movable battery holder has an operating portion formed thereon, which a user can push to cause the movable battery holder to rotate relative to the battery fixing holder.

[0016] In some embodiments of this application, the battery body is electrically connected to the base unit via a connecting wire;

[0017] Alternatively, it may also include a spring pin connecting part, which is electrically connected to the base unit, and the battery body is provided with a contact part, which is electrically connected to the contact part through contact; the spring pin connecting part and the battery unit are connected to the same two shafts.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] By connecting the base unit, inner link, chain guide unit and outer link with a hinge, the battery unit is connected to two adjacent shafts, thus achieving convenient installation of the battery unit. The battery unit is used to supply power to the base unit. By using the above-mentioned battery unit fixing method, the battery unit can be installed close to the base unit, the distance between the two is small, the cable connection is convenient, and it is not limited by the specific structure of the bicycle frame.

[0020] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed in this invention;

[0023] Figure 2 is another overall structural schematic diagram of an embodiment of an electronic transmission proposed in this invention;

[0024] Figure 3 is a schematic diagram of the overall structure of a battery mounting bracket according to an embodiment of an electronic transmission proposed in this invention;

[0025] Figure 4 is a schematic diagram of the overall structure of the battery movable support of an embodiment of an electronic transmission proposed in this invention;

[0026] Figure 5 is a schematic diagram of the overall structure of the battery cell and external connecting rod of an embodiment of an electronic transmission proposed in this invention;

[0027] Figure 6 is another schematic diagram of the overall structure of the battery cell and external connecting rod of an embodiment of the electronic transmission proposed in this invention;

[0028] Figure 7 is a schematic diagram of the overall structure of the outer connecting rod of an embodiment of an electronic transmission proposed in this invention;

[0029] Figure 8 is another overall structural schematic diagram of an embodiment of an electronic transmission proposed in this invention;

[0030] Figure 9 is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed in this invention;

[0031] Figure 10 is a partial schematic diagram of section A in Figure 9;

[0032] Figure 11 is a top view of an embodiment of an electronic transmission proposed in this invention;

[0033] Figure 12 is a partial schematic diagram of section B in Figure 11;

[0034] Figure 13 is a side view of an embodiment of an electronic transmission proposed in this invention;

[0035] Figure 14 is a partial schematic diagram of section C in Figure 13;

[0036] Figure 15 is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed in this invention;

[0037] Figure 16 is a schematic diagram of the overall structure of an embodiment of the first base shell of an electronic transmission proposed in this invention;

[0038] Figure 17 is a schematic diagram of the overall structure of an embodiment of the second base shell of an electronic transmission proposed in this invention;

[0039] Figure 18 is an exploded view of the base unit of an electronic transmission proposed in this invention;

[0040] Figure 19 is another overall structural schematic diagram of an embodiment of an electronic transmission proposed in this invention. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In some embodiments of this application, a bicycle electronic gearbox is disclosed.

[0043] In some embodiments of this application, it can be used for electronic rear derailleurs on bicycles.

[0044] In some embodiments of this application, it can also be used for electronic front derailleurs on bicycles.

[0045] In some embodiments of this application, an electronic rear derailleur for bicycles is used as an example for illustration. As shown in Figures 1, 2, 3, 4, 5, 6, 7, and 8, an electronic derailleur for bicycles includes a base unit 200, a chain guide unit 400, a linkage unit, and a battery unit.

[0046] The base unit 200 is used to fix it to the frame 110 of the cycling equipment.

[0047] The chain unit 400 is connected to the base unit 200 via a linkage unit. The battery unit is used to power the base unit 200.

[0048] A drive unit is provided inside the base unit 200.

[0049] Specifically, the battery unit is used to power the drive unit.

[0050] The battery unit supplies power to the drive unit, which in turn drives the linkage unit, causing the chain guide unit 400 to move.

[0051] The bicycle frame 110 has a sprocket assembly 130 and a chain 140 at the rear wheel 120. The sprocket assembly 130 includes multiple sprockets 131 of different diameters. A chain guide unit 400 guides the chain 140 so that the chain 140 engages with the individual sprockets 131 of the sprocket assembly 130.

[0052] The chain guide unit 400 moves under the drive of the drive unit, causing the chain 140 to shift from the initial sprocket to the target sprocket, thereby realizing the shifting operation between the chain 140 and each sprocket 131.

[0053] In some embodiments of this application, as shown in Figures 1, 2, 5, and 6, the linkage unit includes an outer linkage 710 and an inner linkage 720. Both the outer linkage 710 and the inner linkage 720 are connected between the base unit 200 and the chain guide unit 400. The inner linkage 720 is connected between the base unit 200 and the chain guide unit 400 on the side closer to the cycling equipment frame 110. The outer linkage 710 is connected between the base unit 200 and the chain guide unit 400 on the side farther from the cycling equipment frame 110.

[0054] In some embodiments of this application, the base unit 200, the inner connecting rod 720, the chain guide unit 400, and the outer connecting rod 710 are sequentially hinged together by a shaft.

[0055] In existing electronic rear derailleurs, taking a semi-wireless solution as an example, the battery unit is installed in the seat post of the cycling equipment frame 110. A cable is led from the seat post, passes through the inside of the cycling equipment frame 110, and comes out from the rear chainstay to connect with the bicycle electronic rear derailleur to power the bicycle electronic rear derailleur. During the installation process, it is difficult to thread the cable, and some frame cables cannot be threaded out smoothly.

[0056] In some embodiments of this application, the battery cells are connected to adjacent shafts. Therefore, the battery cells and the base unit 200 are positioned close together, and lead wires connect them.

[0057] The battery cell includes the battery body and the support assembly.

[0058] In some embodiments of this application, the ends of the battery assembly are elastically deformed to achieve an openable connection with two adjacent shafts.

[0059] Specifically, one end of the battery assembly is connected to a shaft, and the other end of the battery assembly is closable to an adjacent shaft. When the user applies force to the battery assembly, the battery assembly undergoes elastic deformation, thereby causing the other end of the battery assembly to detach from the shaft, allowing the battery assembly to open relative to any one of the base unit 200, the guide chain unit 400, the outer link 710, or the inner link 720.

[0060] The battery assembly can be connected to the shafts at both ends of either of the above, and correspondingly, an area can be enclosed with either of the above for accommodating the battery assembly.

[0061] By opening and closing the bracket assembly relative to any of the above, the battery body can be positioned and moved out.

[0062] In some embodiments of this application, the battery assembly can also be opened and closed by rotation.

[0063] With the support assembly in a closed state relative to any of the base unit 200, chain guide unit 400, inner link 720, and outer link 710, the support assembly is configured to limit the battery body between the support assembly and any of the base unit 200, chain guide unit 400, inner link 720, and outer link 710 via connections to two adjacent shafts.

[0064] When the support assembly is in the open state relative to any of the base unit 200, the guide chain unit 400, the inner connecting rod 720, and the outer connecting rod 710, the battery body can be removed from the support assembly.

[0065] In some embodiments of this application, as shown in Figures 6 and 7, the bracket assembly includes a battery fixing bracket 610 and a battery movable bracket 620.

[0066] One end of the battery fixing bracket 610 is rotatably connected to one end of the battery movable bracket 620.

[0067] The other end of the battery mounting bracket 610 and the other end of the battery movable bracket 620 respectively engage with the adjacent shaft limiters to lock the relative positions of the battery mounting bracket 610, the battery movable bracket 620 and the electronic rear derailleur.

[0068] The area enclosed by the battery fixing bracket 610 and the battery movable bracket 620 is used to store battery cells.

[0069] Specifically, a first limiting part is formed on the battery fixing bracket 610, and a second limiting part is formed on the shaft at a position corresponding to the battery fixing bracket 610. The first limiting part and the second limiting part cooperate to limit the movement.

[0070] Specifically, a third limiting part is formed on the battery movable support 620, and a fourth limiting part is formed on the shaft corresponding to the position of the battery movable support 620. The third limiting part and the fourth limiting part cooperate to limit the movement.

[0071] In some embodiments of this application, as shown in Figures 5 and 6, the axis at the pivot joint between the base unit 200 and the inner connecting rod 720 is defined as the first pivot joint axis 810.

[0072] The axis at the pivot point between the inner link 720 and the guide chain unit 400 is defined as the second pivot axis 820.

[0073] The axis at the pivot joint between the guide chain unit 400 and the outer connecting rod 710 is defined as the third pivot axis 830.

[0074] The axis at the pivot point between the outer link 710 and the base unit 200 is defined as the fourth pivot axis 840.

[0075] The ends of the battery fixing bracket 610 and the battery movable bracket 620 are respectively matched with the two adjacent shafts for limiting.

[0076] Specifically, the first pivot 810, the second pivot 820, the third pivot 830 and the fourth pivot 840 are respectively distributed at the four vertices of the quadrilateral.

[0077] Therefore, the first pivot shaft 810 and the second pivot shaft 820 are arranged adjacent to each other. The second pivot shaft 820 and the third pivot shaft 830 are arranged adjacent to each other. The third pivot shaft 830 and the fourth pivot shaft 840 are arranged adjacent to each other. The fourth pivot shaft and the first pivot shaft 810 are arranged adjacent to each other. The battery fixing bracket 610 and the battery movable bracket 620 are respectively matched with any two adjacent shafts mentioned above for limiting.

[0078] This allows the area formed between the battery movable bracket 620, the battery fixed bracket 610, and the base unit 200, the inner connecting rod 720, the outer connecting rod 710, or the guide chain unit 400 to accommodate the battery unit.

[0079] Specifically, the battery unit also includes the battery body.

[0080] In some embodiments of this application, the battery body may be accommodated within the cavity formed by the battery movable support 620, the battery fixed support 610, and the base unit 200.

[0081] In some other embodiments of this application, the battery body may be accommodated in the cavity formed by the battery movable support 620, the battery fixed support 610 and the outer connecting rod 710.

[0082] In some other embodiments of this application, the battery body may be accommodated in the cavity formed by the battery movable support 620, the battery fixed support 610 and the chain guide unit 400.

[0083] In some other embodiments of this application, the battery body may be accommodated in the cavity formed by the battery movable support 620, the battery fixed support 610 and the chain guide unit 400.

[0084] In some embodiments of the application, the first limiting part and the second limiting part can be detachably connected.

[0085] In some embodiments of this application, the third limiting part and the fourth limiting part may be detachably connected.

[0086] When the battery body needs to be replaced, the battery movable bracket 620 and the battery fixed bracket 610 can be removed by detaching the first limiting part and the second limiting part, and the third limiting part and the fourth limiting part through the detachable connection between the first limiting part and the second limiting part, and the third limiting part and the fourth limiting part, thereby realizing the replacement of the battery body housed therein.

[0087] In some embodiments of this application, the end of the battery fixing bracket 610 is limited to the fourth pivot shaft 840, and the end of the battery movable bracket 620 is limited to the third pivot shaft 830.

[0088] Therefore, the battery cell is arranged adjacent to the external connecting rod 710.

[0089] In this state, a first clearance portion is formed on the outer connecting rod 710. The first clearance portion is used to enclose the area formed between the battery fixing bracket 610 and the battery movable bracket 620 to accommodate the battery unit.

[0090] Specifically, a first clearance cavity 711 is formed on the side of the outer connecting rod 710 away from the bicycle frame 110, near the first clearance part.

[0091] Specifically, a battery receiving cavity 611 is formed inside the battery fixing bracket 610.

[0092] The first clearance cavity 711 and the battery cavity 611 are arranged to form the first cavity.

[0093] The battery body is installed in the first receiving cavity.

[0094] In some other embodiments of this application, as shown in FIG7, a first clearance portion is formed on the side of the outer connecting rod 710 near the bicycle frame 110. In this case, a first clearance portion receiving cavity 711 is formed on the side of the outer connecting rod 710 near the bicycle frame 110. The battery fixing bracket 610, the battery movable bracket 620, and the battery body can be disposed on the side of the outer connecting rod 710 near the bicycle frame 110, that is, the battery fixing bracket 610, the battery movable bracket 620, and the battery body are disposed on the side of the outer connecting rod 710 near the inner connecting rod 720.

[0095] The battery unit is located on the side of the outer link 710 away from the cycling equipment frame 110 or on the side closer to the cycling equipment frame 110, depending on the overall size of the battery unit and the size of the area enclosed by the base unit 200, the outer link 710, the chain guide unit 400 and the inner link 720.

[0096] In other embodiments of this application, the battery cell may also be positioned between the first pivot shaft 810 and the second pivot shaft 820. Alternatively, it may be positioned between the second pivot shaft 820 and the third pivot shaft 830. Or it may be positioned between the fourth pivot shaft 840 and the first pivot shaft 810.

[0097] In some other embodiments of this application, the battery cell is located inside or outside the quadrilateral formed by the base unit 200, the outer connecting rod 710, the chain guide unit 400, and the inner connecting rod 720.

[0098] In some embodiments of this application, the battery body includes a battery casing 631, a battery cell, a connecting wire 632, and a terminal 633. The battery cell is disposed within the battery casing 631. The connecting wire 632 is electrically connected to the battery cell, and extends out of the battery casing 631. The end of the connecting wire 632 extending out of the battery casing 631 is connected to the terminal 633, and the terminal 633 is electrically connected to a drive unit disposed within the base unit 200.

[0099] In some embodiments of this application, various structural forms can be adopted for the specific form of the limiting cooperation between the first limiting part and the second limiting part, and for the specific form of the third limiting part and the fourth limiting part.

[0100] Specifically, the first limiting portion is a first notch 612 formed on the end of the battery fixing bracket 610. The second limiting portion is a first extension 850 of the shaft formed at the position corresponding to the first limiting portion.

[0101] In some embodiments of this application, the third limiting portion is a second notch 621 formed on the end of the battery movable support 620.

[0102] The fourth limiting part is a second extension 860 formed on the shaft corresponding to the position of the third limiting part.

[0103] Specifically, the battery fixing bracket 610 is limited to the fourth pivot shaft 840, and the battery movable bracket 620 is limited to the third pivot shaft 830.

[0104] The first extension 850 is located at the end of the fourth pivot shaft 840.

[0105] The second extension 860 is located at the end of the third pivot shaft 830.

[0106] Specifically, in addition to serving as a pivot between the outer connecting rod 710 and the base unit 200, the fourth pivot shaft 840 extends beyond the outer connecting rod 710 and the base unit 200, which is the first extension 850.

[0107] Specifically, in addition to serving as a pivot between the outer connecting rod 710 and the chain guide unit 400, the third pivot shaft 830 extends beyond the outer connecting rod 710 and the chain guide unit 400, which is the second extension 860.

[0108] Specifically, the battery mounting bracket 610 has a bent structure, formed by bending a sheet metal to enclose and form a battery receiving cavity 611.

[0109] Specifically, two first recesses 612 are symmetrically formed on the plates on both sides of the battery housing cavity 611. Two first extensions 850 are symmetrically formed on both sides of the fourth pivot shaft 840 extending to the outer connecting rod 710.

[0110] Two first extensions 850 are respectively formed at both ends of the fourth pivot shaft 840.

[0111] The two first notches 612 respectively cooperate with the two first extensions 850 for positioning.

[0112] Specifically, the battery mounting bracket 610 is formed by bending a sheet metal to create two first stops 613 that are oppositely arranged along the extension direction of the outer connecting rod 710, and two second stops 614 along the width direction of the outer connecting rod 710. The two first stops 613 and the two second stops 614 are bent in the same direction to form a battery receiving cavity 611.

[0113] Specifically, a base plate 617 is connected between the two first stops 613 and the two second stops 614.

[0114] The battery body is placed inside the battery housing cavity 611, and two first stops 613 and two second stops 614 are used to prevent the battery body from falling out of it.

[0115] Two first notches 612 are formed on the ends of two first protrusions 615 extending along the two second stops 614.

[0116] Two second stops 614 extend in the opposite direction to the first protrusion 615 to form two second protrusions 616.

[0117] In some embodiments of this application, there are two second extensions 860, which are symmetrically formed at the two ends of the third pivot shaft 830. Thus, there are also two second recesses 621, which are matched with the second extensions 860 located at the two ends of the third pivot shaft 830.

[0118] Specifically, the battery movable support 620 includes two opposing vertical extensions 622. Two second notches 621 are respectively formed at the ends of the two vertical extensions 622.

[0119] A horizontal connecting part 626 is connected between the other ends of the two vertical extensions 622.

[0120] A second connecting hole 6221 is provided at the other end of each of the two vertical extensions 622.

[0121] A first connecting hole 6161 is provided on each of the two second protrusions 616.

[0122] The end of the battery fixing bracket 610 is rotatably connected to the end of the battery movable bracket 620.

[0123] When the first limiting part adopts the form of a first notch 612 and the second limiting part adopts the form of a second notch 621, the battery fixing bracket 610 and the battery movable bracket 620 are hinged by a reset rotation assembly.

[0124] The reset rotation assembly is used to drive the first limiting part to cooperate with the second limiting part for limiting.

[0125] Specifically, the reset rotation assembly is used to push the first notch 612 into contact with the first extension 850.

[0126] The reset rotation assembly is used to drive the third limit part and the fourth limit part to cooperate and limit the movement.

[0127] Specifically, the reset rotation assembly is used to push the second notch 621 into contact with the second extension 860.

[0128] In some embodiments of this application, the reset rotation assembly includes a rotation shaft 641 and a torsion spring 642.

[0129] The battery fixing bracket 610 and the battery movable bracket 620 are rotatably connected by a reset rotating assembly, and the first limiting part and the second limiting part are pushed to engage in a limiting engagement, and the third limiting part and the fourth limiting part are engaged in a limiting engagement.

[0130] In some embodiments of this application, the two ends of the rotating shaft 641 pass through the first connecting hole and the second connecting hole located on both sides, respectively.

[0131] Torsion spring 642 is mounted on the outside of rotating shaft 641. Torsion spring 642 is used to apply force in the direction that pushes the battery fixing bracket 610 and the battery movable bracket 620 to unfold.

[0132] In some embodiments of this application, a second notch 621 is formed at the end of the vertical extension 622. Specifically, the second notch 621 may be formed in a hook shape.

[0133] The hook-shaped second notch 621 hooks onto the outer periphery of the second extension 860.

[0134] Specifically, there are two second notches 621, which are formed at the ends of the vertical extension 622.

[0135] In some embodiments of this application, an inlet portion 623 is formed at the end of the battery movable support 620 adjacent to the second notch 621.

[0136] During the installation of the battery unit relative to the bicycle's electronic rear derailleur, the battery body is installed in the battery receiving cavity 611 formed within the battery mounting bracket 610;

[0137] The first notch 612 is positioned and fitted onto the first extension 850;

[0138] The portion of the battery body protruding from the battery receiving cavity 611 is inserted into the first clearance receiving cavity 711 formed in the outer connecting rod 710;

[0139] Push the battery movable bracket 620 to rotate toward the battery fixed bracket 610;

[0140] During the rotation of the battery movable bracket 620 relative to the battery fixed bracket 610, the guide portion 623 moves circumferentially along the second extension portion 860.

[0141] When the battery movable bracket 620 rotates relative to the battery fixed bracket 610, the guide portion 623 moves circumferentially relative to the second extension portion 860 until the guide portion 623 disengages from the second extension portion 860, and the second notch 621 is limited and fitted at the second extension portion 860.

[0142] Under the action of the torsion spring 642, the first notch 612 can be pushed to engage with the first extension 850, and the second notch 621 can engage with the second extension 860.

[0143] In this state, to limit the extreme rotational position between the battery mounting bracket 610 and the battery movable bracket 620, a stop portion 624 is provided on the battery movable bracket 620. When the battery mounting bracket 610 rotates to its extreme rotational position relative to the battery movable bracket 620, the battery mounting bracket 610 abuts against the stop portion 624. This achieves the limit position of relative rotation between the battery movable bracket 620 and the battery mounting bracket 610.

[0144] In some embodiments of the application, the hook-shaped second notch 621 and the second extension 860 are connected by snap-fit.

[0145] Specifically, the inlet portion 623 adopts an inclined portion formed at the end of the vertical extension portion 622. When the inclined portion moves along the second extension portion 860 to disengage from the second extension portion 860, the second notch 621 engages with the second extension portion 860.

[0146] In some embodiments of this application, in order to more conveniently drive the movable battery bracket 620 to rotate relative to the fixed battery bracket 610, an operating part 625 is provided on the movable battery bracket 620. The user drives the movable battery bracket 620 to rotate relative to the fixed battery bracket 610 by pushing the operating part 625.

[0147] Specifically, the abutment portion 624 is formed at the horizontal connection portion 626 and extends toward the battery fixing bracket 610.

[0148] Specifically, the operating part 625 is a bent plate that extends from the abutment part 624. The bent plate bends away from the battery mounting bracket 610.

[0149] In some other embodiments of this application, the battery unit further includes a spring pin connection portion 640, which is disposed in the first clearance portion receiving cavity 711 within the outer connecting rod 710 and adjacent to the battery body. A contact portion is provided on the battery body, and the contact portion and the spring pin connection portion 640 are electrically connected by contact. The spring pin connection portion 640 is electrically connected to the base unit 200 via a wire.

[0150] Specifically, the spring pin connection part 640 is provided with two spring pins, one positive and one negative, and the contact part on the battery body has two contacts, which are respectively connected to the two spring pins, one positive and one negative.

[0151] By using a spring-loaded connector 640, the wire connection between the battery body and the base unit 200 is eliminated. Therefore, the battery body can be removed more easily, and the cables can remain unfrozen, making the battery unit manufacturing simpler and cheaper.

[0152] Specifically, to ensure that the spring pin connector 640 and the battery body remain connected during movement, the spring pin connector 640 and the battery body are connected to the same two shafts. As shown in Figures 9, 10, 11, 12, 13, 14, 15, and 16, the electronic rear derailleur includes a base unit 200, a drive unit, a chain guide unit 400, and a linkage unit. The base unit 200 is fixed to the bicycle frame 110. The drive unit is located within the base unit 200. The chain guide unit 400 is connected to the drive unit via the linkage unit. The drive unit moves the chain guide unit 400 by driving the linkage unit.

[0153] The bicycle frame 110 has a sprocket assembly 130 and a chain 140 at the rear wheel 120. The sprocket assembly 130 includes multiple sprockets 131 of different diameters. A chain guide unit 400 guides the chain 140 so that the chain 140 engages with the individual sprockets 131 of the sprocket assembly 130.

[0154] The chain guide unit 400 moves under the drive of the drive unit, causing the chain 140 to shift from the initial sprocket to the target sprocket, thereby realizing the shifting operation between the chain 140 and each sprocket 131.

[0155] The electronic rear derailleur can be controlled via an operating device on the riding equipment. The drive unit can be configured to move the linkage unit in response to operation from the operating device, thereby guiding the chain 140 to shift position via the chain guide unit 400. The operating device can be a shifter, knob, or similar device mounted on the handlebars.

[0156] In some embodiments of this application, in order to reduce the number of parts, weight and overall size of the electronic rear transmission, the housing of the drive unit and the base unit 200 are designed as an integral structure.

[0157] In some embodiments of this application, the base unit 200 includes a first base shell 210 of integral structure. A first mounting portion 211 is formed within the first base shell 210. The base unit 200 is used for connection with a cycling device.

[0158] The drive unit includes a motor 310, a gear assembly 320, and an output shaft 330, all housed within the first housing 210. The gear assembly 320 is a transmission connection between the motor 310 and the output shaft 330. The gear assembly 320 transmits the output power of the motor 310 to the output shaft 330. The output shaft 330 drives the movement of the linkage unit.

[0159] The body of the first base shell 210 is a shell with an inner cavity, and the first mounting part 211 and the first base shell 210 are an integral structure.

[0160] In some embodiments of this application, the base unit 200 further includes a frame mounting portion 220, which is connected to the outside of the first base shell 210.

[0161] The frame mounting section 220 and the first base shell 210 are an integral structure. The frame mounting section 220 is used to connect with the bicycle frame 110 of the cycling equipment.

[0162] In some embodiments of this application, a mounting hole 221 is provided on the frame mounting part 220, and a locking bolt is installed in the mounting hole 221 to mount the base unit 200 on the cycling equipment frame 110.

[0163] The base unit 200 also includes a frame limiting part 230. The frame limiting part 230 is provided on the frame mounting part 220. The frame limiting part 230 is used to abut against the bicycle frame 110 of the cycling equipment, thereby fixing the relative position of the frame limiting part 230 and the bicycle frame 110 of the cycling equipment.

[0164] In some embodiments of this application, the part on the bicycle frame 110 that connects to the frame mounting part 220 and the frame limiting part 230 can be a direct-mount tail hook or a combination structure of a standard tail hook and B2 link.

[0165] The base unit 200 involved in this application is not limited to the tail hook form of the cycling equipment frame 110. That is, it can be installed on the cycling equipment frame 110 equipped with a direct-mount tail hook, or on the cycling equipment frame 110 equipped with a combination structure formed by a standard tail hook and the B2 link.

[0166] Therefore, the base unit 200 involved in this application is not limited to the specific structure of the frame 110 of a particular cycling device. It can be widely used in various types of cycling equipment.

[0167] In some embodiments of this application, to adjust the relative angle between the base unit 200 and the bicycle frame 110, the base unit 200 further includes an angle adjustment section 250. The angle adjustment section 250 adjusts the relative angle between the base unit 200 and the bicycle frame 110 by pushing the base unit 200 to achieve relative rotation between them. This is used to adjust the circumferential relative angle between the base unit 200 and the sprocket 131.

[0168] Specifically, the angle adjustment unit 250 includes an angle adjustment fixing bracket 251 and an angle adjustment set screw 252. The angle adjustment fixing bracket 251 is disposed on the first base shell 210, and a threaded connection hole is provided on the angle adjustment fixing bracket 251. The angle adjustment set screw 252 is threadedly connected to the threaded connection hole, and the axis of the angle adjustment set screw 252 is perpendicular to the axis of the mounting hole provided on the frame mounting part 220.

[0169] The end of the angle adjustment screw 252 abuts against the frame limiting part 230.

[0170] By rotating the angle adjustment screw 252, the base unit 200 is pushed away from or towards the frame limiting part 230. During this process, the base unit 200 rotates around the axis of the mounting hole provided on the frame mounting part 220. This is used to adjust the relative angle of the base unit 200 with respect to the riding device.

[0171] In some embodiments of this application, the first base shell 210 and the second base shell 240 enclose a cavity.

[0172] In some embodiments of this application, a cable outlet 212 is formed on the first base shell 210. The cable outlet 212 communicates with the cavity, and the cables of components such as the motor 310 and PCB board 340 housed in the cavity extend out of the base unit 200 through the cable outlet 212.

[0173] When an electronic rear derailleur is installed on a cycling device, the forward direction of the cycling device is defined as front, the direction opposite to front is defined as rear, the direction of the cycling device towards the ground is defined as bottom, and the direction opposite to bottom is defined as top. The end of the electronic derailleur facing forward is called the front end, the end facing backward is called the rear end, the end facing upward is called the top end, and the end facing downward is called the bottom end. One side of the base unit 200 is close to the cycling device, and the other side is away from the cycling device. The chain guide unit 400 is configured to move from the side of the base unit 200 away from the cycling device to below the base unit 200 close to the cycling device.

[0174] The cable outlet 212 is located on the base unit 200 at the rear along the direction of travel of the riding device.

[0175] Specifically, the cable outlet 212 is positioned facing rearward.

[0176] Specifically, the cable outlet 212 is positioned facing upwards.

[0177] In some embodiments of this application, as shown in FIG17, the base unit further includes a second base shell 240, which is used to accommodate the control components. The control components mainly include components such as a PCB board 340.

[0178] The control unit is electrically connected to the motor 310.

[0179] Specifically, PCB board 340 is electrically connected to motor 310.

[0180] Considering that wireless signal electrical devices or magnetic components are installed inside the second base shell 240, in order to avoid interference with signal transmission or magnetic field interference, the second base shell 240 is usually made of non-metallic materials, such as plastic.

[0181] In this case, signal interference to the electrical components inside the second base shell 240 is avoided. However, this results in lower structural strength and rigidity, posing a greater risk of falls and other collisions during riding or storage. The second base shell 240 becomes a more vulnerable part. Therefore, the first base shell 210 can be made of metal. By making the first base shell 210 a component with higher structural strength, and by forming a shock-absorbing part 216 on the first base shell 210, the shock-absorbing part 216 extends from the first base shell 210 to one side of the second base shell 240. Furthermore, in order to improve the anti-collision protection effect of the anti-collision part 216 on the second base shell 240, the anti-collision part 216 extends to the side of the second base shell 240 away from the riding device. Since the electronic rear derailleur is usually located on one side of the riding device, when the riding device falls in this direction, the side of the base unit 200 away from the riding device is more likely to collide with the ground. Therefore, the anti-collision part 216 extends to the side of the second base shell 240 away from the riding device. In the event of a fall, the anti-collision part 216 takes the impact in place of the second base shell 240, thereby protecting the second base shell 240.

[0182] In some embodiments of this application, as shown in FIG19, the axial direction of the mounting hole 221 opened on the frame mounting part 220 intersects with the side surface of the second base shell 240 away from the riding equipment frame 110 at an acute angle.

[0183] Specifically, the intersection angle mentioned above is defined as α.

[0184] Specifically, the side surface of the second base shell 240 away from the cycling equipment frame 110 is coplanar with the end surface of the anti-collision part 216 away from the cycling equipment frame 110.

[0185] This causes the second base shell 240 to tilt relative to the anti-collision part 216 toward the side closer to the bicycle frame 110, preventing the second base shell 240 from colliding with the ground or other objects in the event of the bicycle falling over. This further protects the second base shell 240 and components such as the PCB board 340 installed inside the second base shell 240, as well as the gear assembly 320 located in the first base shell 210 on the side of the second base shell 240 closer to the bicycle frame 110.

[0186] Specifically, the preferred range for the intersection angle α is 30-80 degrees.

[0187] In some embodiments of this application, as shown in FIG16, the first base shell 210 is formed with an open end. The second base shell 240 is also formed with an open end.

[0188] In some embodiments of this application, the first base shell 210, the second base shell 240 and the anti-collision part 216 are arranged to form a cavity, which is used to accommodate the motor 310, the gear assembly 320, the output shaft 330 and the PCB board 340.

[0189] In some embodiments of this application, in order to enable a tight connection between the first base shell 210 and the second base shell 240, a first annular insertion portion 215 is formed around the edge of the opening end of the first base shell 210, and a second annular insertion portion 241 is formed around the edge of the opening of the second base shell 240.

[0190] The first annular insertion part 215 is inserted into the second annular insertion part 241 to realize the insertion between the first base shell 210 and the second base shell 240.

[0191] In some embodiments of this application, the first annular insertion portion 215 may adopt the structure of an annular groove, and correspondingly, the second annular insertion portion 241 may adopt the structure of an annular boss, with the cross-sectional shape of the annular boss corresponding to that of the annular groove.

[0192] In some other embodiments of this application, the first annular plug portion 215 may adopt the structure of an annular boss, and correspondingly, the second annular plug portion 241 may adopt the structure of an annular groove, with the cross-sectional shapes of the annular boss and the annular groove corresponding to each other.

[0193] In some embodiments of this application, in order to improve the tightness of the connection between the first annular plug portion 215 and the second annular plug portion 241, an annular adhesive portion can also be provided between the two, which tightly bonds the two together, thereby further preventing the two from falling off.

[0194] In some embodiments of this application, the first annular insertion portion 215 and the second annular insertion portion 241 are provided with annular adhesive portions, which can ensure the waterproof performance between the two.

[0195] In some other embodiments of this application, the first annular plug portion 215 and the second annular plug portion 241 may also be connected by fasteners.

[0196] In some embodiments of this application, in order to connect the output shaft 330 with the linkage unit, a first output shaft hole 217 is provided on the first base shell 210, and a second output shaft hole 243 is provided on the second base shell 240. One end of the output shaft 330 extends out from the first output shaft hole 217, and the other end of the output shaft 330 extends out from the second output shaft hole 243. After extending out, it is convenient to connect with the linkage unit.

[0197] In some embodiments of this application, the linkage unit includes an outer linkage 710 and an inner linkage 720.

[0198] Specifically, the outer link 710 includes a third link 530 and a fourth link 540 that are connected to each other.

[0199] Specifically, the inner link 720 includes a first link 510 and a second link 520 that are connected to each other.

[0200] One end of the first link 510 is connected to one end of the output shaft 330, and one end of the second link 520 is connected to the other end of the output shaft 330.

[0201] In some embodiments of this application, a circumferential positioning structure is provided between one end of the first connecting rod 510 and one end of the output shaft 330. The output shaft 330 drives the first connecting rod 510 to rotate around the axis of the output shaft 330 through the circumferential positioning structure, thereby driving the other end of the first connecting rod 510 to rotate around the axis of the output shaft 330, and further driving the chain guide unit 400 to rotate around the output shaft 330.

[0202] In some other embodiments of this application, a circumferential positioning structure is provided between one end of the second link 520 and one end of the output shaft 330. The output shaft 330 drives the second link 520 to rotate around the axis of the output shaft 330 through the circumferential positioning structure, thereby driving the other end of the second link 520 to rotate around the axis of the output shaft 330, and then driving the chain guide unit 400 to rotate around the output shaft 330.

[0203] In some embodiments of this application, one end of the first connecting rod 510 rotates relative to the first base shell 210. Considering the relative positions of the motor 310 and gear assembly 320 within the first base shell 210, the motor 310 is located inside the first base shell 210 away from the output shaft 330, while the gear assembly 320 is located inside the first base shell 210 near the output shaft 330. The height of the motor 310 is greater than the height of the gear assembly 320. Therefore, a cavity is formed inside the first base shell 210. The height of the cavity accommodating the motor 310 needs to be higher than the height of the cavity where the gear assembly 320 is installed. Accordingly, a first clearance portion 214 can be provided on the outside of the first base shell 210 near the output shaft 330. The first clearance portion 214 is a recess formed on the first base shell 210. During rotation, one end of the first connecting rod 510 rotates within the first clearance portion 214, thereby further reducing the overall size of the base unit 200, making full use of space, and resulting in a more compact structure.

[0204] In some embodiments of this application, one end of the second connecting rod 520 rotates relative to the second base shell 240. The second base shell 240 houses a PCB board 340. Based on the arrangement of electrical components on the PCB board 340, a notch is formed in the PCB board 340. A second clearance portion 242 is formed on the second base shell 240 at the position corresponding to the notch. The second clearance portion 242 is a recess formed on the second base shell 240. This avoids interference between the second connecting rod 520 and the second base shell 240 during rotation, thereby further reducing the overall size of the base unit 200, making full use of space, and resulting in a more compact structure.

[0205] In some embodiments of this application, the middle part of the first link 510 is connected to the middle part of the second link 520, thereby realizing the linkage between the first link 510 and the second link 520.

[0206] In some embodiments of this application, the linkage unit further includes a third link 530, a fourth link 540, and a first connecting shaft 560.

[0207] A first connecting rod connecting shaft hole 218 is provided on the first base shell 210, and a second connecting rod connecting shaft hole is provided on the second base shell 240.

[0208] The two ends of the first connecting shaft 560 pass through the first connecting shaft hole 218 and the second connecting shaft hole, respectively, and are connected to one end of the third connecting rod 530 and one end of the fourth connecting rod 540.

[0209] The other end of the third link 530 and the other end of the fourth link 540 are connected to the chain guide unit 400.

[0210] During the rotation of the chain guide unit 400 around the output shaft 330 by the first link 510 and the second link 520, the chain guide unit 400 drives the third link 530 and the fourth link 540 to rotate around the axis of the first connecting shaft 560. This enables the link unit to drive the movement of the chain guide unit 400.

[0211] The middle part of the third link 530 is connected to the middle part of the fourth link 540, thereby ensuring the linkage between the third link 530 and the fourth link 540.

[0212] Specifically, the third link 530 and the fourth link 540 can be connected by a connector; the third link 530 and the fourth link 540 can also be an integral structure.

[0213] In some other embodiments of this application, one end of the third link 530 and one end of the fourth link 540 are only connected to the first base shell 210, and the second base shell 240 has a notch there for avoidance.

[0214] In some embodiments of this application, a bracket 213 is connected inside the first base shell 210. The bracket 213 is detachably connected to the first base shell 210 by a first bolt, and the gear assembly 320 is limited between the first base shell 210 and the bracket 213.

[0215] The gear assembly 320 includes at least one gear 321 and at least one gear shaft 322.

[0216] Gear 321 is mounted on the bracket 213 and the first mounting part 211 of the first base shell 210 via gear shaft 322. Gear 321 is fitted over gear shaft 322, so that gear 321 rotates with gear shaft 322.

[0217] At least one first gear shaft mounting position is provided in the first mounting part 211.

[0218] Correspondingly, at least one second gear shaft mounting position is provided in the bracket 213, and the two ends of the gear shaft 322 are rotatably connected in the first gear shaft mounting position and the second gear shaft mounting position, respectively.

[0219] Specifically, the first gear shaft mounting position and the second gear shaft mounting position can be mounting holes or shaft seats. The number, position, size, etc. of these mounting holes or shaft seats correspond to the number, position, size, etc. of the gear shafts 322.

[0220] The bracket 213 is provided with a first connecting part 2131, and the motor 310 is detachably connected to the first connecting part 2131. The first connecting part 2131 can be provided with screw holes for mounting the motor 310.

[0221] The bracket 213 is provided with an output shaft mounting position, and the output shaft 330 is rotatably connected in the output shaft mounting position, and the output shaft 330 can rotate around its own axis. The bracket 213 can be a one-piece structure, that is, the first connecting part 2131, the second gear shaft mounting position and the output shaft mounting position are integrally formed.

[0222] The end of gear shaft 322 can be rotatably connected to the inner first gear shaft mounting position and the second gear shaft mounting position by means of sliding friction or by means of bearing housing, etc. The output shaft mounting position and the output shaft 330 can be connected by sliding friction or by means of bearing housing, etc., to achieve a rotatable connection.

[0223] Mounting the motor 310, gear assembly 320, and output shaft 330 on the bracket 213 ensures the stability of their installation and avoids setting more installation structures on the first base shell 210, thus preventing the structure of the first base shell 210 from becoming too complex.

[0224] Meanwhile, the gear assembly 320, motor 310 and output shaft 330 are installed at the first mounting part 211 and clamped between the first base shell 210 and the bracket 213, thereby eliminating the need to set up a separate housing for the drive unit, reducing the number of parts and weight, reducing the mating clearance, thereby reducing the movement and shaking between parts and reducing the potential risk of loosening.

[0225] In some embodiments of this application, the linkage unit further includes a transmission member 550, through which the gear assembly 320 and the output shaft 330 are connected. The transmission member 550 includes a gear portion 551 and a fixed bushing 552. The gear portion 551 cooperates with the gear assembly 320, and the fixed bushing 552 is fixedly connected to the output shaft 330. The gear portion 551 and the fixed bushing 552 of the transmission member 550 are fixedly connected together by welding, integral molding, or other means.

[0226] In detail, the gear section 551 is provided with a toothed structure that can mesh with the gear 321. When the gear 321 rotates, it drives the gear section 551 to rotate, and the fixed bushing 552 drives the output shaft 330 to rotate around its own axis. The fixed bushing 552 is sleeved on the outside of the output shaft 330, and the fixed bushing 552 and the output shaft 330 can be engaged by a circumferential positioning structure. The circumferential positioning structure can be a non-circular surface, preventing the fixed bushing 552 and the output shaft 330 from rotating relative to each other.

[0227] The output end of the motor 310 extends vertically, and the output shaft 330 extends horizontally. In addition to including at least one gear 321 and at least one gear shaft 322 that are axially aligned with the output shaft 330, the gear assembly 320 also includes a worm gear 323 and a worm 324. The torque output by the motor 310 is transmitted to the output shaft 330 after the worm gear 323 and the worm 324 change direction.

[0228] In detail, the output end of the motor 310 is connected to the worm gear 324. One end of the worm gear 324 is coaxially connected to the output end of the motor 310, and the other end is rotatably connected to the bracket 213. The worm wheel 323 is rotatably connected between the bracket 213 and the first mounting part 211 via a gear shaft 322, and cooperates with the worm gear 324. The rotation axis of the worm wheel 323 is parallel to the axis of the output shaft 330. The worm wheel 323 and the output shaft 330 can be connected by transmission through at least one gear 321, and the rotation axis of each gear 321 is also parallel to the axis of the output shaft 330.

[0229] In some embodiments of this application, two swing limiting portions are further provided on the first base shell 210 to limit the swing range of the linkage unit. The two swing limiting portions are used to limit the swing range of the linkage unit.

[0230] Specifically, the swing limiting part includes a swing limiting fixing bracket 261 and a swing limiting post 262. The swing limiting fixing bracket 261 is disposed on the outside of the first base shell 210, and the swing limiting post 262 is disposed on the swing limiting fixing bracket 261.

[0231] Specifically, the swing limit post 262 can be in the form of a swing limit screw.

[0232] Two swing limiting parts are spaced apart on the first base shell 210, and are used to limit the two swing limit positions of the first connecting rod 510 respectively.

[0233] In other embodiments, the two swing limiting parts can also limit the swing range of the linkage unit by limiting the second link 520, the third link 530, or the fourth link 540.

[0234] Compared to existing electronic rear derailleurs that connect a reduction gearbox to the motor output, the electronic rear derailleur in this embodiment uses a gear assembly 320 to transmit the torque output by the motor 310. The gear assembly 320 is directly mounted on the first mounting portion 211 of the first base housing 210. The first base housing 210 is a one-piece structure, eliminating the need for some parts used to mount the gear assembly 320 and simplifying the structure of the base unit 200. This helps reduce the weight and size of the electronic rear derailleur and simplifies the assembly process, thus reducing manufacturing costs.

[0235] In the assembly process of the base unit 200, the first base shell 210 and the motor 310, gear assembly 320, output shaft 330, etc., installed in the first base shell 210 constitute one module, and the second base shell 240 and the PCB board 340, etc., installed in the second base shell 240 constitute another module. After assembling the two modules respectively, the first base shell 210 and the second base shell 240 are fixedly connected together to complete the assembly of the base unit 200. After the base unit 200 is assembled, the first connecting rod 510 and the second connecting rod 520 are respectively connected to the two ends of the output shaft 330, and then the first connecting rod 510 and the second connecting rod 520 are fixedly connected together. The third connecting rod 530 and the fourth connecting rod 540 are respectively connected to the two ends of the first connecting shaft 560, and then the third connecting rod 530 and the fourth connecting rod 540 are fixedly connected together.

[0236] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention 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 the present invention.

Claims

1. An electronic transmission, comprising a base unit, a chain guide unit, and a linkage unit, the base unit for connection to a riding device, the linkage unit comprising an inner linkage and an outer linkage, wherein the base unit, the inner linkage, the chain guide unit, and the outer linkage are sequentially hinged together by shafts, characterized in that, Also includes: A battery cell, including a battery body, is connected to two adjacent shafts and is used to supply power to the base unit; When the support assembly is in an open state relative to any one of the base unit, the guide chain unit, the inner connecting rod, and the outer connecting rod, the battery body can be removed from the support assembly.

2. The electronic transmission according to claim 1, characterized in that, With the support assembly in a closed state relative to any of the base unit, the chain guide unit, the inner link, and the outer link, the support assembly is configured to confine the battery body between the support assembly and any of the base unit, the chain guide unit, the inner link, and the outer link via connections to two adjacent shafts.

3. The electronic transmission according to claim 2, characterized in that, The bracket assembly includes a battery fixing bracket and a battery movable bracket, and the battery fixing bracket and the battery movable bracket are rotatably connected. A first limiting part is formed on the battery fixing bracket, and a second limiting part is formed on the shaft corresponding to the position of the battery fixing bracket; the first limiting part and the second limiting part are mutually limiting and cooperating. When the battery movable bracket is in the closed state, a third limiting part is formed on the battery movable bracket, and a fourth limiting part is formed on the shaft corresponding to the position of the battery movable bracket; the third limiting part and the fourth limiting part are in a limiting engagement. When the battery movable bracket is in the open state, the third limiting part and the fourth limiting part are released from their limiting engagement, so that the battery body can be moved out.

4. The electronic transmission according to claim 3, characterized in that, The ends of the support assembly are elastically deformed to allow for openable and closable connection with two adjacent shafts.

5. The electronic transmission according to claim 3, characterized in that, The battery unit further includes a reset rotation assembly; the battery fixed bracket and the battery movable bracket are hinged together by the reset rotation assembly. When the battery movable bracket is in the closed state, the reset rotation assembly is used to drive the first limiting part to engage with the second limiting part; the reset rotation assembly is also used to drive the third limiting part to engage with the fourth limiting part. When the battery is in the open state, the user pushes the battery movable bracket to rotate relative to the battery fixed bracket, and the third limiting part and the fourth limiting part release their limiting engagement, so that the battery body can be moved out.

6. The electronic transmission according to claim 5, characterized in that, The first limiting part is a first notch formed on the end of the battery fixing bracket; The second limiting portion is a first extension formed on the shaft corresponding to the position of the first limiting portion; The third limiting part is a second notch formed on the end of the battery movable bracket; The fourth limiting portion is a second extension formed on the shaft corresponding to the position of the third limiting portion; The reset rotation assembly is used to push the first notch to abut against the first extension; The reset rotation assembly is also used to push the second notch to abut against the second extension.

7. The electronic transmission according to claim 6, characterized in that, The battery movable bracket has an inlet portion formed near the fourth limiting portion; When the first limiting part and the second limiting part are in a limiting engagement state, and an external force is applied to the movable battery bracket to cause the movable battery bracket to rotate relative to the fixed battery bracket, the guiding part moves relative to the fourth limiting part until the third limiting part and the fourth limiting part are in a limiting engagement state.

8. The electronic transmission according to claim 2, characterized in that, The battery unit is disposed adjacent to the external connecting rod, and a first clearance portion is formed on the external connecting rod. The external connecting rod, the battery fixing bracket, and the battery movable bracket surround and form a first receiving cavity, which is used to receive the battery body. Alternatively, the battery unit is disposed adjacent to the inner connecting rod, and a second clearance portion is formed on the inner connecting rod. The inner connecting rod, the fixed battery bracket, and the movable battery bracket together form a second receiving cavity, which is used to receive the battery body.

9. The electronic transmission according to claim 6, characterized in that, The movable battery bracket has an abutment portion formed thereon. When the first limiting portion and the second limiting portion are in a limiting engagement state, and the third limiting portion and the fourth limiting portion are in a limiting engagement state, the fixed battery bracket abuts against the abutment portion. And / or, the movable battery bracket is provided with an operating part, which the user can push to rotate the movable battery bracket relative to the fixed battery bracket.

10. The electronic transmission according to claim 1, characterized in that, The battery body is electrically connected to the base unit via a connecting wire; Alternatively, it may also include a spring pin connecting part, which is electrically connected to the base unit, and the battery body is provided with a contact part, which is electrically connected to the contact part through contact; the spring pin connecting part and the battery unit are connected to the same two shafts.

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