Electronic transmission

Abstract

The utility model provides an electronic transmission which comprises a base unit, a guide chain unit and a connecting rod unit, the base unit is used for being connected with riding equipment, the connecting rod unit comprises an inner connecting rod and an outer connecting rod, and the base unit, the inner connecting rod, the guide chain unit and the outer connecting rod are sequentially hinged through shafts. The battery unit is connected to the two adjacent shafts, and the battery unit is used for supplying power to the base unit. The base unit, the inner connecting rod, the guide chain unit and the outer connecting rod are connected in a shaft hinging mode, and the battery units are connected to the two adjacent shafts, so that convenient installation of the battery units is achieved, the installation position of the battery units is close to the position of the base unit, the position of the battery is relatively stable and safe, and collision and falling are always avoided in the riding process.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycles, and specifically relates to a bicycle electronic derailleur. Background Art

[0002] Currently, for the existing designs of electric rear derailleurs, most adopt a semi-wireless scheme. The battery is installed in the seat tube, leads from the seat tube, passes through the inside of the frame, exits from the rear lower fork, and is connected to the rear derailleur to supply power to the rear derailleur. During installation, threading is difficult, and the cables of some frames cannot pass through smoothly. Another scheme is to install it at the base position of the rear derailleur. At this position, the battery protrudes at the tail and is likely to collide and fall off during riding. There is also a scheme to place the battery on the derailleur linkage. Although it can protect the battery from collision, it requires the derailleur to be larger in size, increase in weight, and the battery will move frequently driven by the derailleur linkage during shifting, resulting in unstable operation.

[0003] Therefore, developing an electronic derailleur to set the battery assembly at a suitable position of the derailleur, not restricted by the specific structural form of the bicycle frame, avoiding collision, and having a relatively stable battery position is an urgent technical problem to be solved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electronic derailleur to solve the problems in the prior art that the battery assembly is prone to collision on the rear derailleur and the relative position is unstable.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions to be realized:

[0006] The utility model provides an electronic derailleur, which includes a base unit, a chain guiding unit, and a linkage unit. The base unit is used to connect with a riding device. The linkage unit includes an inner linkage and an outer linkage. The base unit, the inner linkage, the chain guiding unit, and the outer linkage are sequentially hinged by shafts. It further includes: a battery unit, which is connected to two adjacent shafts, and the battery unit is used to supply power to the base unit.

[0007] In some embodiments of the present application, the battery unit includes a battery body and a bracket assembly; when the bracket assembly is in a closed state relative to any one of the base unit, the chain guiding unit, the inner linkage, and the outer linkage, the bracket assembly is configured to limit the battery body between the bracket assembly and any one of the base unit, the chain guiding unit, the inner linkage, and the outer linkage by connecting with two adjacent shafts; when the bracket assembly is in an open state relative to any one of the base unit, the chain guiding unit, the inner linkage, and the outer linkage, the battery body can be moved out of the bracket assembly.

[0008] In some embodiments of the present application, the bracket assembly includes a battery fixed bracket and a battery movable bracket, and the battery fixed bracket is rotatably connected to the battery movable bracket; a first limiting portion is formed on the battery fixed bracket, and a second limiting portion is formed on the shaft corresponding to the position of the battery fixed bracket; the first limiting portion is in limiting cooperation with the second limiting portion; when the battery movable bracket is in the closed state, a third limiting portion is formed on the battery movable bracket, and a fourth limiting portion is formed on the shaft corresponding to the position of the battery movable bracket; the third limiting portion is in limiting cooperation with the fourth limiting portion; when the battery movable bracket is in the open state, the third limiting portion and the fourth limiting portion are relatively released from the limiting cooperation, so that the battery body can be removed.

[0009] In some embodiments of the present application, the end of the bracket assembly is connected to two adjacent shafts in an openable and closable manner through elastic deformation.

[0010] In some embodiments of the present application, the battery unit further includes a reset rotation assembly; the battery fixed bracket and the battery movable bracket are hinged through 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 portion and the second limiting portion to be in limiting cooperation; the reset rotation assembly is also used to drive the third limiting portion and the fourth limiting portion to be in limiting cooperation; when the battery movable bracket is in the open state, a user externally forces the battery movable bracket to rotate relative to the battery fixed bracket, and the third limiting portion and the fourth limiting portion are relatively released from the limiting cooperation, so that the battery body can be removed.

[0011] In some embodiments of the present application, the first limiting portion is a first notch formed at the end of the battery fixed 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 portion is a second notch formed at 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 and the first extension to abut; the reset rotation assembly is also used to push the second notch and the second extension to abut.

[0012] In some embodiments of the present application, a guiding portion is formed at the battery movable bracket near the fourth limiting portion; during the process of externally applying a force to the battery movable bracket to make the battery movable bracket rotate relative to the battery fixed bracket when the first limiting portion and the second limiting portion are in the limiting cooperation state, the guiding portion moves relative to the fourth limiting portion to the position where the third limiting portion and the fourth limiting portion are in limiting cooperation.

[0013] In some embodiments of the present application, the battery unit is disposed adjacent to the outer link, a first avoidance portion is formed on the outer link, and the outer link, the battery fixing bracket, and the movable battery bracket enclose a first accommodation cavity for accommodating the battery body; alternatively, the battery unit is disposed adjacent to the inner link, a second avoidance portion is formed on the inner link, and the inner link, the battery fixing bracket, and the movable battery bracket enclose a second accommodation cavity for accommodating the battery body.

[0014] In some embodiments of the present application, a abutting portion is formed on the battery movable bracket. In a state where the first limiting portion and the second limiting portion are in limiting cooperation and the third limiting portion and the fourth limiting portion are in cooperation, the battery fixing bracket abuts against the abutting portion. And / or, an operating portion is formed on the battery movable bracket, and a user can push the operating portion to rotate the battery movable bracket relative to the battery fixing bracket.

[0015] In some embodiments of the present application, the battery body is electrically connected to the base unit through a connection line;

[0016] Alternatively, the battery unit further includes a probe connection portion electrically connected to the base unit, a contact portion is provided on the battery body, and the probe connection portion is in electrical contact with the contact portion.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are:

[0018] By connecting the base unit, the inner link, the chain guide unit and the outer link in an axially hinged manner, and connecting the battery unit to two adjacent axes, the convenient installation of the battery unit is realized. The battery unit is used to supply power to the base unit. By adopting the above-mentioned fixing method of the battery unit, the installation position of the battery unit can be close to the position of the base unit, the distance between the two is relatively short, the cable connection is convenient, and it is not restricted by the specific structure of the bicycle frame.

[0019] After reading the specific embodiments of the present utility model in conjunction with the drawings, other features and advantages of the present utility model will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1It is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0022] Figure 2 It is another schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0023] Figure 3 It is a schematic diagram of the overall structure of the battery fixing bracket of an embodiment of an electronic transmission proposed by the present utility model;

[0024] Figure 4 It is a schematic diagram of the overall structure of the battery movable bracket of an embodiment of an electronic transmission proposed by the present utility model;

[0025] Figure 5 It is a schematic diagram of the overall structure of the battery unit and the outer connecting rod of an embodiment of an electronic transmission proposed by the present utility model;

[0026] Figure 6 It is another schematic diagram of the overall structure of the battery unit and the outer connecting rod of an embodiment of an electronic transmission proposed by the present utility model;

[0027] Figure 7 It is a schematic diagram of the overall structure of the outer connecting rod of an embodiment of an electronic transmission proposed by the present utility model;

[0028] Figure 8 It is another schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0029] Figure 9 It is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0030] Figure 10 is Figure 9 a partial schematic diagram in A;

[0031] Figure 11 It is a top view of an embodiment of an electronic transmission proposed by the present utility model;

[0032] Figure 12 is Figure 11 a partial schematic diagram in B;

[0033] Figure 13 It is a side view of an embodiment of an electronic transmission proposed by the present utility model;

[0034] Figure 14 is Figure 13 a partial schematic diagram in C;

[0035] Figure 15 It is a schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0036] Figure 16 It is a schematic diagram of the overall structure of an embodiment of the first base shell of an electronic transmission proposed by the present utility model;

[0037] Figure 17 It is a schematic diagram of the overall structure of an embodiment of the second base shell of an electronic transmission proposed by the present utility model;

[0038] Figure 18 It is an exploded view of the base unit of an electronic transmission proposed by the present utility model;

[0039] Figure 19 It is another schematic diagram of the overall structure of an embodiment of an electronic transmission proposed by the present utility model;

[0040] In the figure,

[0041] 110, bicycle frame;

[0042] 120, rear wheel;

[0043] 130, sprocket assembly;

[0044] 131, sprocket;

[0045] 140, chain;

[0046] 200, base unit;

[0047] 210, first base shell;

[0048] 211, first mounting portion;

[0049] 212, wire outlet hole portion;

[0050] 213, bracket;

[0051] 2131, first connecting portion;

[0052] 214, first avoiding portion;

[0053] 215, first annular plugging portion;

[0054] 216, anti-collision portion;

[0055] 217, first output shaft hole;

[0056] 218, first connecting rod connecting shaft hole;

[0057] 220, frame mounting portion;

[0058] 221. Mounting hole;

[0059] 230. Frame limiting part;

[0060] 240. Second base case;

[0061] 241. Second annular plug-in part;

[0062] 242. Second avoidance part;

[0063] 243. Second output shaft hole;

[0064] 250. Angle adjustment part;

[0065] 251. Angle adjustment fixed bracket;

[0066] 252. Angle adjustment setscrew;

[0067] 261. Swing limiting fixed bracket;

[0068] 262. Swing limiting column;

[0069] 310. Motor;

[0070] 320. Gear assembly;

[0071] 321. Gear;

[0072] 322. Gear shaft;

[0073] 323. Worm gear;

[0074] 324. Worm;

[0075] 330. Output shaft;

[0076] 340. PCB board;

[0077] 400. Chain guide unit;

[0078] 510. First connecting rod;

[0079] 520. Second connecting rod;

[0080] 530. Third connecting rod;

[0081] 540. Fourth connecting rod;

[0082] 550. Transmission part;

[0083] 551. Gear part;

[0084] 552. Fixed shaft sleeve;

[0085] 560. First connecting shaft;

[0086] 610. Battery fixing bracket;

[0087] 611. Battery accommodation cavity;

[0088] 612. First notch;

[0089] 613. First stop;

[0090] 614. Second stop;

[0091] 615. First protrusion;

[0092] 616. Second protrusion;

[0093] 617. Bottom plate;

[0094] 6161. First connecting hole;

[0095] 620. Battery movable bracket;

[0096] 621. Second notch;

[0097] 622. Vertical extension part;

[0098] 6221. Second connecting hole;

[0099] 623. Introduction part;

[0100] 624. Abutting part;

[0101] 625. Operating part;

[0102] 626. Horizontal connecting part;

[0103] 631. Battery housing;

[0104] 632. Connecting wire;

[0105] 633. Terminal;

[0106] 640. Probe connecting part;

[0107] 641. Rotating shaft;

[0108] 642. Torsion spring;

[0109] 710. Outer connecting rod;

[0110] 711. First avoidance part accommodation cavity;

[0111] 720. Inner connecting rod;

[0112] 810. First pivot shaft;

[0113] 820. Second pivot shaft;

[0114] 830. Third pivot shaft;

[0115] 840, Fourth pivot shaft;

[0116] 850, First extension;

[0117] 860, Second extension. Detailed implementation manners

[0118] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0119] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0120] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0121] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0122] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0123] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described hereinafter. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not in itself indicate the relationship between various embodiments and / or settings discussed.

[0124] In some embodiments of the present application, a bicycle electronic transmission is involved.

[0125] In some embodiments of the present application, it can be used for a bicycle electronic rear derailleur.

[0126] In some embodiments of the present application, it can also be used for a bicycle electronic front derailleur.

[0127] In some embodiments of the present application, a bicycle electronic rear derailleur is taken as an example for illustration. As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown, a bicycle electronic transmission includes a base unit 200, a chain guide unit 400, a link unit and a battery unit.

[0128] The base unit 200 is used to be fixed on the frame 110 of a riding device.

[0129] The chain guide unit 400 is connected to the base unit 200 through the link unit. The battery unit is used to supply power to the base unit 200.

[0130] A driving unit is arranged in the base unit 200, and the housing of the driving unit and the base unit are of an integral structure.

[0131] Specifically, the battery unit is used to supply power to the driving unit.

[0132] The battery unit supplies power to the drive unit, and the drive unit drives the link unit to drive the chain guide unit 400 to move.

[0133] A sprocket assembly 130 and a chain 140 are provided at the rear wheel 120 of the frame 110 of the riding device. The sprocket assembly 130 includes a plurality of sprockets 131 with different diameters. The chain guide unit 400 is used to guide the chain 140 so that the chain 140 engages with each sprocket 131 of the sprocket assembly 130.

[0134] The chain guide unit 400 moves under the drive of the drive unit, so that the chain 140 shifts from the initial sprocket to the target sprocket, thereby realizing the shifting operation between the chain 140 and each sprocket 131.

[0135] In some embodiments of the present application, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the link unit includes an outer link 710 and an inner link 720. Both the outer link 710 and the inner link 720 are connected between the base unit 200 and the chain guide unit 400. The inner link 720 is connected between the base unit 200 and the chain guide unit 400 on the side close to the frame 110 of the riding device. The outer link 710 is connected between the base unit 200 and the chain guide unit 400 on the side far from the frame 110 of the riding device

[0136] In some embodiments of the present application, the base unit 200, the inner link 720, the chain guide unit 400 and the outer link 710 are sequentially hinged by shafts.

[0137] In the existing electronic rear derailleur, taking the semi-wireless scheme as an example, the battery unit is installed in the seat tube of the frame 110 of the riding device, leads from the seat tube, passes through the inside of the frame 110 of the riding device, exits from the rear lower fork, and is connected to the bicycle electronic rear derailleur to supply power to the bicycle electronic rear derailleur. During the installation process, threading is difficult, and some frame cables cannot pass through smoothly.

[0138] In some embodiments of the present application, the battery unit is connected to adjacent shafts. Therefore, the battery unit and the base unit 200 are arranged close to each other, and it is easy to realize the connection between them by leading wires.

[0139] The battery unit includes a battery body and a bracket assembly.

[0140] In some embodiments of the present application, the end of the battery assembly realizes an openable and closable connection with two adjacent shafts through elastic deformation.

[0141] Specifically, one end of the battery assembly is connected to a shaft, and the other end of the battery assembly is connected to an adjacent shaft in an openable and closable manner. The user applies a force to the battery assembly, causing elastic deformation of the battery assembly, so that the other end of the battery assembly disengages from the shaft, and the battery assembly is opened relative to any one of the base unit 200, the wire unit 400, the outer link 710, or the inner link 720.

[0142] The battery assembly can be connected to the shafts at both ends of any of the above, and correspondingly, the area that can enclose any of the above is used to accommodate the battery assembly.

[0143] By opening and closing the bracket assembly relative to any of the above, the limiting and removal of the battery body are realized.

[0144] In some embodiments of the present application, the battery assembly can also be opened and closed by rotation.

[0145] When the bracket assembly is in a closed state relative to any one of the base unit 200, the chain guide unit 400, the inner link 720, and the outer link 710, the bracket assembly is configured to limit the battery body between the bracket assembly and any one of the base unit 200, the chain guide unit 400, the inner link 720, and the outer link 710 by connecting to two adjacent shafts;

[0146] When the bracket assembly is in an open state relative to any one of the base unit 200, the chain guide unit 400, the inner link 720, and the outer link 710, the battery body can be removed from the bracket assembly.

[0147] In some embodiments of the present application, as Figure 6 , Figure 7 shown, the bracket assembly includes a battery fixed bracket 610 and a battery movable bracket 620.

[0148] One end of the battery fixed bracket 610 is rotatably connected to one end of the battery movable bracket 620.

[0149] The other end of the battery fixed bracket 610 and the other end of the battery movable bracket 620 are respectively in limit fit with adjacent shafts, so as to lock the relative positions between the battery fixed bracket 610, the battery movable bracket 620, and the electronic rear derailleur.

[0150] The area formed by enclosing the battery fixed bracket 610 and the battery movable bracket 620 is used to store the battery unit.

[0151] Specifically, a first limiting portion is formed on the battery fixed bracket 610, and a second limiting portion is formed on the shaft corresponding to the position of the battery fixed bracket 610. The first limiting portion and the second limiting portion cooperate for limiting.

[0152] Specifically, a third limiting portion is formed on the battery movable bracket 620, and a fourth limiting portion is formed on the shaft corresponding to the position of the battery movable bracket 620. The third limiting portion and the fourth limiting portion cooperate to limit the position.

[0153] In some embodiments of the present application, as Figure 5 , Figure 6 shown, the shaft at the pivot joint of the base unit 200 and the inner link 720 is defined as the first pivot shaft 810.

[0154] The shaft at the pivot joint of the inner link 720 and the chain guide unit 400 is defined as the second pivot shaft 820.

[0155] The shaft at the pivot joint of the chain guide unit 400 and the outer link 710 is defined as the third pivot shaft 830.

[0156] The shaft at the pivot joint of the outer link 710 and the base unit 200 is defined as the fourth pivot shaft 840.

[0157] The end of the battery fixing bracket 610 and the end of the battery movable bracket 620 are respectively in limit fit with two adjacent shafts.

[0158] Specifically, the first pivot shaft 810, the second pivot shaft 820, the third pivot shaft 830 and the fourth pivot shaft 840 are respectively and sequentially distributed at the four vertices of a quadrilateral.

[0159] Therefore, the first pivot shaft 810 and the second pivot shaft 820 are adjacent to each other. The second pivot shaft 820 and the third pivot shaft 830 are adjacent to each other. The third pivot shaft 830 and the fourth pivot shaft 840 are adjacent to each other. The fourth pivot shaft and the first pivot shaft 810 are adjacent to each other. The battery fixing bracket 610 and the battery movable bracket 620 are respectively in limit fit with any two adjacent shafts above.

[0160] Thus, the area enclosed by the battery movable bracket 620, the battery fixing bracket 610 and the base unit 200 or the inner link 720 or the outer link 710 or the chain guide unit 400 is used to accommodate the battery unit.

[0161] Specifically, the battery unit further includes a battery body.

[0162] In some embodiments of the present application, the battery body can be accommodated in the cavity enclosed by the battery movable bracket 620, the battery fixing bracket 610 and the base unit 200.

[0163] In some other embodiments of the present application, the battery body can be accommodated in the cavity enclosed by the battery movable bracket 620, the battery fixing bracket 610 and the outer link 710.

[0164] In some other embodiments of the present application, the battery body can be accommodated in a cavity formed by enclosing the battery movable bracket 620, the battery fixed bracket 610, and the chain guide unit 400.

[0165] In some other embodiments of the present application, the battery body can be accommodated in a cavity formed by enclosing the battery movable bracket 620, the battery fixed bracket 610, and the chain guide unit 400.

[0166] In some embodiments of the application, the first limiting portion and the second limiting portion can be detachably connected in a detachable manner.

[0167] In some embodiments of the present application, the third limiting portion and the fourth limiting portion can be detachably connected in a detachable manner.

[0168] When the battery body needs to be replaced, by the detachable connection between the first limiting portion and the second limiting portion, and the detachable connection between the third limiting portion and the fourth limiting portion, the first limiting portion and the second limiting portion are detached, and the third limiting portion and the fourth limiting portion are detached, so as to detach the battery movable bracket 620 and the battery fixed bracket 610, thereby realizing the replacement of the battery body accommodated therein.

[0169] In some embodiments of the present application, the end of the battery fixed bracket 610 is in limiting cooperation with the fourth pivot shaft 840, and the end of the battery movable bracket 620 is in limiting cooperation with the third pivot shaft 830.

[0170] Therefore, the battery unit is disposed adjacent to the outer link 710.

[0171] In this state, a first avoidance portion is formed on the outer link 710, and the first avoidance portion is used for the area formed by enclosing between the battery fixed bracket 610 and the battery movable bracket 620 to accommodate the battery unit.

[0172] Specifically, a first avoidance portion accommodation cavity 711 is formed on the side of the outer link 710 away from the riding device frame 110 and close to the first avoidance portion.

[0173] Specifically, a battery accommodation cavity 611 is formed in the battery fixed bracket 610.

[0174] The first avoidance portion accommodation cavity 711 and the battery accommodation cavity 611 enclose to form a first accommodation cavity.

[0175] The battery body is installed in the first accommodation cavity.

[0176] In some other embodiments of the present application, such as Figure 7As shown, the first avoidance portion is formed on the side of the outer link 710 close to the frame 110 of the riding device. In this case, the accommodation cavity 711 of the first avoidance portion is formed on the side of the first avoidance portion on the side of the outer link 710 close to the frame 110 of the riding device. The battery fixing bracket 610, the battery movable bracket 620 and the battery body can be arranged on the side of the outer link 710 close to the frame 110 of the riding device, that is, the battery fixing bracket 610, the battery movable bracket 620 and the battery body are arranged on the side of the outer link 710 close to the inner link 720.

[0177] The battery unit is arranged on the side of the outer link 710 away from the frame 110 of the riding device or on the side close to the frame 110 of the riding device, depending on the overall size of the battery unit and the relationship with the size of the area formed by enclosing the base unit 200, the outer link 710, the chain guide unit 400 and the inner link 720.

[0178] In some other embodiments of the present application, the battery unit can also be limited and fitted between the first pivot shaft 810 and the second pivot shaft 820. It can also be limited and fitted between the second pivot shaft 820 and the third pivot shaft 830. It can also be limited and fitted between the fourth pivot shaft 840 and the first pivot shaft 810.

[0179] In some other embodiments of the present application, the battery unit is located inside or outside the quadrilateral formed by enclosing the base unit 200, the outer link 710, the chain guide unit 400 and the inner link 720.

[0180] In some embodiments of the present application, the battery body includes a battery housing 631, an electric core, a connecting wire 632 and a terminal 633. The electric core is arranged inside the battery housing 631. The connecting wire 632 is electrically connected to the electric core, the connecting wire 632 passes out of the battery housing 631, and a terminal 633 is connected to the end of the connecting wire 632 after it extends out of the battery housing 631, and the terminal 633 is electrically connected to the driving unit arranged inside the base unit 200.

[0181] In some embodiments of the present application, for the specific forms of the limiting fit between the first limiting portion and the second limiting portion, and the specific forms of the third limiting portion and the fourth limiting portion, various structural forms can be adopted.

[0182] Specifically, the first limiting portion is a first notch 612 formed at the end of the battery fixing bracket 610. The second limiting portion is a first extension 850 of the shaft formed at the corresponding position of the first limiting portion.

[0183] In some embodiments of the present application, the third limiting portion is a second notch 621 formed at the end of the battery movable bracket 620.

[0184] The fourth limiting portion is the second extension portion 860 formed on the shaft corresponding to the position of the third limiting portion.

[0185] Specifically, the battery fixing bracket 610 is in limiting fit with the fourth pivot shaft 840, and the battery movable bracket 620 is in limiting fit with the third pivot shaft 830.

[0186] The first extension portion 850 is at the end of the fourth pivot shaft 840.

[0187] The second extension portion 860 is at the end of the third pivot shaft 830.

[0188] Specifically, in addition to serving as the pivot between the outer link 710 and the base unit 200, the fourth pivot shaft 840 extends outside the outer link 710 and the base unit 200 to form the first extension portion 850.

[0189] Specifically, in addition to serving as the pivot between the outer link 710 and the chain guide unit 400, the third pivot shaft 830 extends outside the outer link 710 and the chain guide unit 400 to form the second extension portion 860.

[0190] Specifically, the battery fixing bracket 610 is in a bent structural form, formed by bending a sheet, and encloses to form a battery accommodation cavity 611.

[0191] Specifically, two first notches 612 are symmetrically formed on the sheets on both sides of the battery accommodation cavity 611. Two first extension portions 850 are symmetrically formed on both sides where the fourth pivot shaft 840 extends out of the outer link 710.

[0192] The two first extension portions 850 are respectively formed at both end portions of the fourth pivot shaft 840.

[0193] The two first notches 612 are respectively in limiting fit with the two first extension portions 850.

[0194] Specifically, the battery fixing bracket 610 is formed by bending a sheet to form two first stoppers 613 arranged oppositely along the extension direction of the outer link 710, and two second stoppers 614 along the width direction of the outer link 710. The two first stoppers 613 and the two second stoppers 614 are bent in the same direction to form the battery accommodation cavity 611.

[0195] Specifically, a bottom plate 617 is connected between the two first stoppers 613 and the two second stoppers 614.

[0196] The battery body is placed in the battery accommodation cavity 611, and the two first stoppers 613 and the two second stoppers 614 are used to prevent the battery body from falling out therebetween.

[0197] Two first notches 612 are formed at the ends of two first protrusions 615 extending along two second stoppers 614.

[0198] Two second stoppers 614 extend in a direction opposite to that of the first protrusions 615 to form two second protrusions 616.

[0199] In some embodiments of the present application, the number of the second extension parts 860 is two, and the two second extension parts 860 are symmetrically formed at the two ends of the third pivot shaft 830. Accordingly, the number of the second notches 621 is also two, and the two second notches 621 are in limit fit with the second extension parts 860 located at the two ends of the third pivot shaft 830.

[0200] Specifically, the battery movable bracket 620 includes two vertically extending parts 622 arranged oppositely. The two second notches 621 are respectively formed at the ends of the two vertically extending parts 622.

[0201] A horizontal connecting part 626 is connected between the other ends of the two vertically extending parts 622.

[0202] Second connection holes 6221 are respectively formed at the other ends of the two vertically extending parts 622.

[0203] First connection holes 6161 are respectively formed on the two second protrusions 616.

[0204] The end of the battery fixed bracket 610 is rotatably connected to the end of the battery movable bracket 620.

[0205] When the first limiting part adopts the form of the first notch 612 and the second limiting part adopts the form of the second notch 621, the battery fixed bracket 610 and the battery movable bracket 620 are hinged through a reset rotation assembly.

[0206] The reset rotation assembly is used to drive the first limiting part and the second limiting part to be in limit fit.

[0207] Specifically, the reset rotation assembly is used to push the first notch 612 to abut against the first extension part 850.

[0208] The reset rotation assembly is used to drive the third limiting part and the fourth limiting part to be in limit fit.

[0209] Specifically, the reset rotation assembly is used to push the second notch 621 to abut against the second extension part 860.

[0210] In some embodiments of the present application, the reset rotation assembly includes a rotating shaft 641 and a torsion spring 642.

[0211] The battery fixing bracket 610 and the battery movable bracket 620 are rotatably connected through a reset rotating assembly, and the first limiting portion and the second limiting portion are pushed to be in limiting cooperation, and the third limiting portion and the fourth limiting portion are in limiting cooperation.

[0212] In some embodiments of the present application, both ends of the rotating shaft 641 pass through the first connection hole and the second connection hole located on both sides respectively.

[0213] The torsion spring 642 is sleeved outside the rotating shaft 641. The torsion spring 642 is used to apply a force in the direction of pushing the battery fixing bracket 610 and the battery movable bracket 620 to unfold.

[0214] In some embodiments of the present application, the second notch 621 is formed at the end of the vertically extending portion 622. Specifically, the second notch 621 can be formed by surrounding in a hook shape.

[0215] The hook-shaped second notch 621 hooks around the outer periphery of the second extending portion 860.

[0216] Specifically, the number of the second notches 621 is two, and the two second notches 621 are respectively formed at the ends of the vertically extending portion 622.

[0217] In some embodiments of the present application, a guiding portion 623 is formed at the end of the battery movable bracket 620 adjacent to the second notch 621.

[0218] During the installation of the battery unit relative to the bicycle electronic rear derailleur, the battery body is installed in the battery accommodation cavity 611 formed in the battery fixing bracket 610;

[0219] The first notch 612 is in limiting cooperation with the first extending portion 850;

[0220] The part of the battery body leaking out of the battery accommodation cavity 611 is inserted into the first avoidance portion accommodation cavity 711 formed in the outer link 710;

[0221] The battery movable bracket 620 is pushed to rotate towards the direction close to the battery fixing bracket 610;

[0222] During the rotation of the battery movable bracket 620 relative to the battery fixing bracket 610, the guiding portion 623 moves circumferentially along the second extending portion 860;

[0223] During the rotation of the battery movable bracket 620 relative to the battery fixing bracket 610 until the guiding portion 623 moves circumferentially relative to the second extending portion 860 and the guiding portion 623 disengages from the second extending portion 860, the second notch 621 is in limiting cooperation with the second extending portion 860;

[0224] Under the action of the torsion spring 642, the first notch 612 can be pushed to be in limiting fit with the first extension 850, and the second notch 621 can be in limiting fit with the second extension 860;

[0225] In this state, in order to limit the extreme rotation positions of relative rotation between the battery fixing bracket 610 and the battery movable bracket 620, an abutting portion 624 is provided on the battery movable bracket 620. When the battery fixing bracket 610 rotates relative to the battery movable bracket 620 to the extreme rotation position, the battery fixing bracket 610 abuts against the abutting portion 624. Thus, the extreme positions of relative rotation between the battery movable bracket 620 and the battery fixing bracket 610 are realized.

[0226] In some embodiments of the application, the hook-shaped second notch 621 and the second extension 860 are connected by snap connection.

[0227] Specifically, the guiding portion 623 is an inclined portion formed at the end of the vertical connecting portion 622. When the inclined portion moves along the second extension 860 and disengages from the second extension 860, the second notch 621 is snap-connected to the second extension 860.

[0228] In some embodiments of the present application, in order to more conveniently push the battery movable bracket 620 to rotate relative to the battery fixing bracket 610, an operating portion 625 is provided on the battery movable bracket 620. The user drives the battery movable bracket 620 to rotate relative to the battery fixing bracket 610 by pushing the operating portion 625.

[0229] Specifically, the abutting portion 624 is formed to extend toward the battery fixing bracket 610 at the horizontal connecting portion 626.

[0230] Specifically, the operating portion 625 is a bent plate bent and extended from the abutting portion 624. The bent plate is bent in a direction away from the battery fixing bracket 610.

[0231] In some other embodiments of the present application, the battery unit further includes a probe connecting portion 640. The probe connecting portion 640 is disposed in the first avoidance portion accommodating cavity 711 inside the outer connecting rod 710, is disposed adjacent to the battery body. A contact portion is provided on the battery body. The contact portion is electrically connected to the probe connecting portion 640 through contact. The probe connecting portion 640 is electrically connected to the base unit 200 through an electric wire.

[0232] Specifically, two probes, namely a positive probe and a negative probe, are provided on the probe connecting portion 640. The contact portions on the battery body are two contacts, and the two contacts are respectively in electrical contact with the positive and negative probes.

[0233] By adopting the method of setting the probe connection part 640, the wire connection between the battery body and the basic unit 200 is cancelled. Therefore, the battery body can be disassembled more conveniently, and the cable can be kept unfrozen, making the production of the battery unit 400 simpler and the cost lower.

[0234] As Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 As shown in [relevant figures], the electronic rear derailleur includes a base unit 200, a drive unit, a chain guide unit 400, and a link unit. The base unit 200 is used to be fixed on the frame 110 of the riding device. The drive unit is arranged inside the base unit 200. The chain guide unit 400 is connected to the drive unit through the link unit. The drive unit drives the link unit to drive the chain guide unit 400 to move.

[0235] At the rear wheel 120 of the frame 110 of the riding device, a sprocket assembly 130 and a chain 140 are provided. The sprocket assembly 130 includes a plurality of sprockets 131 with different diameters. The chain guide unit 400 is used to guide the chain 140 so that the chain 140 engages with each sprocket 131 of the sprocket assembly 130.

[0236] The chain guide unit 400 moves under the drive of the drive unit, so that the chain 140 shifts from the initial sprocket to the target sprocket, thereby realizing the shifting operation between the chain 140 and each sprocket 131.

[0237] The electronic rear derailleur can be controlled by the operating device of the riding device. The drive unit can be set to drive the link unit to move in response to the operation from the operating device, so that the chain guide unit 400 guides the chain 140 to shift. The operating device can be a finger shifter, a knob, etc. installed on the handlebar.

[0238] In some embodiments of the present application, in order to reduce the number of components, the weight, and the overall size of the electronic rear derailleur, the housing of the drive unit and the base unit 200 are designed as an integrated structure.

[0239] In some embodiments of the present application, the base unit 200 includes a first base shell 210 with an integrated structure. A first installation part 211 is formed inside the first base shell 210. The base unit 200 is used to be connected to the riding device.

[0240] The drive unit includes a motor 310, a gear assembly 320, and an output shaft 330 disposed within the first base housing 210. The gear assembly 320 is drivingly connected between the motor 310 and the output shaft 330. The gear assembly 320 is configured to transmit the output power of the motor 310 to the output shaft 330. The output shaft 330 is configured to drive the movement of the link unit.

[0241] The body of the first base housing 210 is a housing having an inner cavity, and the first mounting portion 211 and the first base housing 210 are an integral structure.

[0242] In some embodiments of the present application, the base unit 200 further includes a frame mounting portion 220, and the frame mounting portion 220 is connected to the outside of the first base housing 210.

[0243] The frame mounting portion 220 and the first base housing 210 are an integral structure. The frame mounting portion 220 is configured to be connected to the riding device frame 110.

[0244] In some embodiments of the present application, a mounting hole 221 is formed in the frame mounting portion 220, and a locking bolt is installed in the mounting hole 221 to mount the base unit 200 on the riding device frame 110.

[0245] The base unit 200 further includes a frame limiting portion 230. The frame limiting portion 230 is disposed on the frame mounting portion 220. The frame limiting portion 230 is configured to abut against the riding device frame 110. Thereby, the relative position between the frame limiting portion 230 and the riding device frame 110 is fixed.

[0246] In some embodiments of the present application, the portion of the riding device frame 110 that is connected to the frame mounting portion 220 and the frame limiting portion 230 may be a direct mount derailleur hanger or a combination structure of a standard derailleur hanger and a B2 link.

[0247] The base unit 200 involved in the present application is not limited by the form of the derailleur hanger of the riding device frame 110, that is, it can be installed on the riding device frame 110 configured with a direct mount derailleur hanger or on the riding device frame 110 configured with a combination structure formed by a standard derailleur hanger and a B2 link.

[0248] Therefore, the base unit 200 involved in the present application is not limited by the specific structure of the specific riding device frame 110. It can be widely applied to various forms of riding devices.

[0249] In some embodiments of the present application, in order to adjust the relative angle of the base unit 200 relative to the frame 110 of the riding device, the base unit 200 further includes an angle adjustment portion 250. The angle adjustment portion 250 realizes the relative rotation between the base unit 200 and the frame 110 of the riding device by pushing, so as to adjust the relative angle between the base unit 200 and the frame 110 of the riding device. It is used to adjust the relative angle of the circumferential direction of the base unit 200 relative to the sprocket 131.

[0250] Specifically, the angle adjustment portion 250 includes an angle adjustment fixing bracket 251 and an angle adjustment set screw 252. The angle adjustment fixing bracket 251 is arranged on the first base shell 210, and a threaded connection hole is opened 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 installation hole opened on the frame installation portion 220.

[0251] The end of the angle adjustment set screw 252 abuts against the frame limiting portion 230.

[0252] By rotating the angle adjustment set screw 252, the base unit 200 is pushed away from or close to the frame limiting portion 230. During the process of moving away from or close to the frame limiting portion 230, the base unit 200 rotates around the axis direction of the installation hole opened on the frame installation portion 220. It is used to adjust the relative angle of the base unit 200 relative to the riding device.

[0253] In some embodiments of the present application, the first base shell 210 and the second base shell 240 enclose a cavity.

[0254] In some embodiments of the present application, a wire outlet hole portion 212 is formed on the first base shell 210. The wire outlet hole portion 212 is communicated with the cavity, and the cables of components such as the motor 310 and the PCB board 340 accommodated in the cavity extend out of the base unit 200 through the wire outlet hole portion 212.

[0255] When the electronic rear derailleur is installed on the riding device, the forward direction of the riding device is defined as the front, the direction opposite to the front is defined as the rear, the direction of the riding device facing the ground is defined as the lower side, and the direction opposite to the lower side is defined as the upper side. The end of the electronic derailleur facing the front is called the front end, the end facing the rear is called the rear end, the end facing the upper side is called the top end, and the end facing the lower side is called the bottom end. One side of the base unit 200 is close to the riding device, and the other side is far from the riding device. The chain guide unit 400 is configured to be able to move from the side of the base unit 200 far from the riding device to the lower part of the base unit 200 close to the riding device.

[0256] The wire outlet hole portion 212 is opened at the rear of the base unit 200 along the traveling direction of the riding device.

[0257] Specifically, the wire outlet hole portion 212 is arranged towards the rear.

[0258] Specifically, the wire outlet hole portion 212 is arranged upwards.

[0259] In some embodiments of the present application, as Figure 17 shown, the base unit further includes a second base case 240, and the second base case 240 is used to accommodate the control component. The control component mainly includes components such as a PCB board 340.

[0260] The control component is electrically connected to the motor 310.

[0261] Specifically, the PCB board 340 is electrically connected to the motor 310.

[0262] Considering that there are wireless signal electrical components or magnetic elements arranged in the second base case 240, therefore, in order to avoid signal transmission interference or magnetic field interference, the second base case 240 is usually made of non-metallic materials, such as plastics, etc.

[0263] In this case, signal interference to the electrical components in the second base case 240 is avoided. However, there is a problem of relatively low structural strength and stiffness. During the riding process or storage process of the riding device, there is a greater risk of falling and colliding with other objects, and the second base case 240 will become a relatively easily damaged part. Therefore, the first base case 210 can be set as a metal material. By setting the first base case 210 as a component with relatively high structural strength, an anti-collision portion 216 is formed on the first base case 210. The anti-collision portion 216 extends from the first base case 210 to one side of the second base case 240. And, in order to improve the anti-collision protection effect of the anti-collision portion 216 on the second base case 240, the anti-collision portion 216 extends out to the side of the second base case 240 away from the riding device. Since the electronic rear derailleur is usually arranged 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, etc. Therefore, the anti-collision portion 216 extends out to the side of the second base case 240 away from the riding device. In the case where the riding device falls, the anti-collision portion 216 is collided instead of the second base case 240, thereby achieving the effect of protecting the second base case 240.

[0264] In some embodiments of the present application, as Figure 19 shown, the intersection angle between the axial direction of the mounting hole 221 formed on the frame mounting portion 220 and the surface of the second base case 210 away from the frame 110 of the riding device is an acute angle.

[0265] Specifically, the above intersection angle is defined as α.

[0266] Specifically, the surface of the second base shell 210 away from the frame 110 of the riding device is coplanar with the end surface of the anti-collision portion 216 away from the frame 110 of the riding device.

[0267] As a result, the second base shell 210 is inclined relative to the anti-collision portion 216 toward the side close to the frame 110 of the riding device, avoiding the collision of the second base shell 240 with items such as the ground in the case of the riding device falling, thereby further protecting the second base shell 240 and components such as the PCB board 340 installed in the second base shell 240, and further protecting the gear assembly 320 and the like in the first base shell 210 on the side of the second base shell 240 close to the frame 110 of the riding device.

[0268] Specifically, preferably, the range of the intersection angle α is 30-80 degrees.

[0269] In some embodiments of the present application, as Figure 16 shown, the first base shell 210 forms an open end. The second base shell 240 also forms an open end.

[0270] In some embodiments of the present application, the first base shell 210, the second base shell 240 and the anti-collision portion 216 enclose a cavity 260, and the cavity 260 is used to accommodate the motor 310, the gear assembly 320, the output shaft 330 and the PCB board 340.

[0271] In some embodiments of the present application, in order to enable the first base shell 210 and the second base shell 240 to be tightly connected, a first annular insertion portion 215 is formed by the edge extension of the open end of the first base shell 210, and a second annular insertion portion 241 is formed by the edge extension of the opening of the second base shell 240.

[0272] The first annular insertion portion 215 and the second annular insertion portion 241 are inserted to realize the insertion between the first base shell 210 and the second base shell 240.

[0273] In some embodiments of the present application, the first annular insertion portion 215 can adopt the structural form of an annular groove. Correspondingly, the second annular insertion portion 241 can adopt the structural form of an annular boss, and the cross-sectional shapes of the annular boss and the annular groove correspond to each other.

[0274] In some other embodiments of the present application, the first annular insertion portion 215 can adopt the structural form of an annular boss. Correspondingly, the second annular insertion portion 241 can adopt the structural form of an annular groove, and the cross-sectional shapes of the annular boss and the annular groove correspond to each other.

[0275] In some embodiments of the present application, in order to improve the tightness of the connection between the first annular insertion part 215 and the second annular insertion part 241, an annular bonding part can be further provided between the two, and the annular bonding part tightly bonds the two, thereby further preventing the two from falling off.

[0276] In some embodiments of the present application, the first annular insertion part 215 and the second annular insertion part 241 are provided with an annular bonding part, which can ensure the waterproof performance between the two.

[0277] In some other embodiments of the present application, the first annular insertion part 215 and the second annular insertion part 241 can also be connected by fasteners.

[0278] In some embodiments of the present application, in order to realize the connection between the output shaft 330 and the link unit, a first output shaft hole 217 is opened on the first base shell 210, and a second output shaft hole 243 is opened 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, which is convenient for connecting with the link unit after extension.

[0279] In some embodiments of the present application, the link unit includes an outer link 710 and an inner link 720.

[0280] Specifically, the outer link 710 includes a third link 530 and a fourth link 540 which are connected to each other.

[0281] Specifically, the inner link 720 includes a first link 510 and a second link 520 which are connected to each other.

[0282] 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.

[0283] In some embodiments of the present application, a circumferential positioning structure is provided between one end of the first link 510 and one end of the output shaft 330. The output shaft 330 drives the first link 510 to rotate around the axis of the output shaft 330 through the circumferential positioning structure, thereby driving the other end of the first link 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.

[0284] In some other embodiments of the present 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 further driving the chain guide unit 400 to rotate around the output shaft 330.

[0285] In some embodiments of the present application, one end of the first link 510 rotates relative to the first base housing 210. Considering the relative positions of the motor 310 and the gear assembly 320 within the first base housing 210, the motor 310 is located at a position within the first base housing 210 that is far from the output shaft 330, and the gear assembly 320 is located at a position within the first base housing 210 that is close to the output shaft 330. The height of the motor 310 is higher than that of the gear assembly 320. Therefore, a cavity is formed within the first base housing 210, and the height of the cavity accommodating a part of the motor 310 needs to be higher than the height of the cavity where the gear assembly 320 is installed. Correspondingly, a first avoidance portion 214 can be provided on the outer side of the first base housing 210 near the output shaft 330. The first avoidance portion 214 is a recess formed on the first base housing 210. During the rotation of one end of the first link 510, the first link 510 rotates within the first avoidance portion 214, thereby further reducing the overall size of the base unit 200, making full use of the space, and making the structure more compact.

[0286] In some embodiments of the present application, one end of the second link 520 rotates relative to the second base housing 240. The second base housing 240 houses a PCB board 340. According to the layout of the electrical components on the PCB board 340, the PCB board 340 forms a notch, and a second avoidance portion 242 is formed at a position on the second base housing 240 corresponding to the notch. The second avoidance portion 242 is a recess formed on the second base housing 240. This avoids interference during the rotation of the second link 520 within the second base housing 240, thereby further reducing the overall size of the base unit 200, making full use of the space, and making the structure more compact.

[0287] In some embodiments of the present 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.

[0288] In some embodiments of the present application, the link unit further includes a third link 530, a fourth link 540, and a first connecting shaft 560.

[0289] A first link connecting shaft hole 218 is provided on the first base housing 210, and a second link connecting shaft hole is provided on the second base housing 240.

[0290] After both ends of the first connecting shaft 560 pass through the first link connecting shaft hole 218 and the second link connecting shaft hole respectively, they are connected to one end of the third link 530 and one end of the fourth link 540.

[0291] The other ends of the third link 530 and the fourth link 540 are connected to the chain guide unit 400.

[0292] During the process of the first link 510 and the second link 520 driving the chain guide unit 400 to rotate around the output shaft 330, 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. Thus, the link unit drives the movement of the chain guide unit 400.

[0293] The middle part of the third link 530 is connected to the middle part of the fourth link 540, thus ensuring the linkage between the third link 530 and the fourth link 540.

[0294] Specifically, the third link 530 and the fourth link 540 can be connected by a connecting member; the third link 530 and the fourth link 540 can also be an integral structure.

[0295] In some other embodiments of the present 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 is provided with a notch here for avoidance.

[0296] In some embodiments of the present application, a bracket 213 is connected inside the first base shell 210. The bracket 213 is detachably connected to the first base shell 210 through a first bolt, and the gear assembly 320 is limited between the first base shell 210 and the bracket 213.

[0297] The gear assembly 320 includes at least one gear 321 and at least one gear shaft 322.

[0298] The gear 321 is installed on the first mounting portion 211 of the bracket 213 and the first base shell 210 through the gear shaft 322. The gear 321 is sleeved outside the gear shaft 322, so that the gear 321 rotates with the gear shaft 322.

[0299] At least one first gear shaft mounting position is provided inside the first mounting portion 211.

[0300] Correspondingly, at least one second gear shaft mounting position is provided inside the bracket 213, and both ends of the gear shaft 322 are rotatably connected inside the first gear shaft mounting position and the second gear shaft mounting position respectively.

[0301] 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 shaft 322.

[0302] A first connecting portion 2131 is provided on the bracket 213. The motor 310 is detachably connected to the first connecting portion 2131, and the first connecting portion 2131 can be provided with screw holes for installing the motor 310.

[0303] The bracket 213 is provided with an output shaft mounting position, in which the output shaft 330 is rotatably connected, and the output shaft 330 can rotate around its own axis. The bracket 213 can be an integrated structure, that is, the first connecting portion 2131, the second gear shaft mounting position and the output shaft mounting position are integrally formed.

[0304] The ends of the gear shaft 322 can be rotatably connected to the first inner gear shaft mounting position and the second inner gear shaft mounting position by means of sliding friction or by means of a bearing seat, etc. The output shaft mounting position and the output shaft 330 can be rotatably connected by means of sliding friction or by means of a bearing seat, etc.

[0305] Installing the motor 310, the gear assembly 320 and the output shaft 330 on the bracket 213 can ensure the installation stability of the three, avoid setting more installation structures on the first base shell 210, and prevent the structure of the first base shell 210 from being too complicated.

[0306] At the same time, the gear assembly 320, the motor 310 and the output shaft 330 are installed at the first mounting portion 211 and clamped between the first base shell 210 and the bracket 213, thereby eliminating the need to set up a separate box for the drive unit, reducing the number and weight of parts, reducing the fitting clearance, thereby reducing the activity and shaking between parts, and reducing the potential risk of loosening.

[0307] In some embodiments of the present application, the connecting rod unit further includes a transmission member 550, and the gear assembly 320 is connected to the output shaft 330 through the transmission member 550. The transmission member 550 includes a gear portion 551 and a fixed sleeve 552. The gear portion 551 cooperates with the gear assembly 320, and the fixed sleeve 552 is fixedly connected to the output shaft 330. The gear portion 551 and the fixed sleeve 552 of the transmission member 550 are fixedly connected together by welding, integral molding or other methods.

[0308] In detail, the gear portion 551 is provided with a tooth groove structure that can mesh with the gear 321. When the gear 321 rotates, the gear portion 551 is driven to rotate, and the fixed sleeve 552 drives the output shaft 330 to rotate around its own axis. The fixed sleeve 552 is sleeved on the outside of the output shaft 330, and the fixed sleeve 552 and the output shaft 330 can be matched through a circumferential positioning structure, and the circumferential positioning structure can be a non-circular surface to prevent the fixed sleeve 552 and the output shaft 330 from rotating relative to each other.

[0309] The output end of the motor 310 extends vertically, and the output shaft 330 extends horizontally. The gear assembly 320 includes not only at least one gear 321 and at least one gear shaft 322 at least axially in the same direction as the output shaft 330, but also a worm wheel 323 and a worm 324. The torque output by the motor 310 is transferred to the output shaft 330 through at least one gear 321 after changing direction through the worm wheel 323 and the worm 324.

[0310] In detail, the output end of the motor 310 is connected to the worm 324, one end of the worm 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 portion 211 through the gear shaft 322, and cooperates with the worm 324. The rotation axis direction of the worm wheel 323 is parallel to the axis direction of the output shaft 330. The worm wheel 323 and the output shaft 330 can be connected by at least one gear 321, and the rotation axis direction of each gear 321 is also parallel to the axis direction of the output shaft 330.

[0311] In some embodiments of the present application, in order to limit the swing range of the connecting rod unit, two swing limiters are further provided on the first base shell 210. The two swing limiters are used to limit the swing range of the connecting rod unit.

[0312] Specifically, the swing limiting part includes a swing limiting fixing bracket 261 and a swing limiting column 262. The swing limiting fixing bracket 261 is arranged on the outer side of the first base shell 210, and the swing limiting column 262 is arranged on the swing limiting fixing bracket 261.

[0313] Specifically, the swing limiting column 262 may be in the form of a swing limiting screw.

[0314] Two swing limit portions are arranged on the first base shell 210 at intervals, and are used to limit two swing limit positions of the first connecting rod 510 respectively.

[0315] In some other embodiments, the two swing limiting portions can also limit the swing range of the connecting rod unit by limiting the second connecting rod 520 or the third connecting rod 530 or the fourth connecting rod 540 .

[0316] Compared with the technical solution of connecting a reduction gearbox at the motor output end in the existing electronic rear derailleur, the electronic rear derailleur in this embodiment uses a gear assembly 320 to transmit the torque output by the motor 310, and the gear assembly 320 is directly mounted on the first mounting portion 211 of the first base shell 210. The first base shell 210 is an integrated structure, which can save some parts for mounting the gear assembly 320, simplifying the structure of the base unit 200. This is conducive to reducing the weight and volume of the electronic rear derailleur, and can also simplify the assembly process of the electronic rear derailleur, which is conducive to reducing the manufacturing cost.

[0317] In the assembly process of the base unit 200, the first base shell 210, the motor 310, the gear assembly 320, the output shaft 330, etc. installed in the first base shell 210 are taken as one module, and the second base shell 240, the PCB board 340, etc. installed in the second base shell 240 are taken as another module. After the two modules are assembled 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 both 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 both ends of the first connecting shaft 560, and then the third connecting rod 530 and the fourth connecting rod 540 are fixedly connected together.

[0318] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. An electronic transmission, comprising a base unit, a chain guide unit and a connecting rod unit, wherein 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 hinged in sequence through shafts, characterized in that: Also includes: A battery unit, including a battery body, connected to two adjacent shafts and used to supply power to the base unit; A bracket assembly, wherein the battery body can be removed from the bracket assembly 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; A drive unit, wherein the housing of the drive unit and the base unit are an integrated structure.

2. The electronic transmission according to claim 1, characterized in that: When the bracket assembly is in a closed state relative to any one of the base unit, the guide chain unit, the inner link, and the outer link, the bracket assembly is configured to limit the battery body between the bracket assembly and any one of the base unit, the guide chain unit, the inner link, and the outer link by connecting with two adjacent axes.

3. The electronic transmission according to claim 2, characterized in that: The bracket assembly comprises a battery fixing bracket and a battery movable bracket, wherein the battery fixing bracket is rotatably connected to the battery movable bracket; A first limiting portion is formed on the battery fixing bracket, and a second limiting portion is formed on the shaft corresponding to the position of the battery fixing bracket; the first limiting portion and the second limiting portion are limitedly matched; When the battery movable bracket is in a closed state, a third limiting portion is formed on the battery movable bracket, and a fourth limiting portion is formed on the shaft corresponding to the position of the battery movable bracket; the third limiting portion is in limited cooperation with the fourth limiting portion; When the battery movable bracket is in the open state, the third limiting portion and the fourth limiting portion are relatively released from the limiting cooperation, so that the battery body can be moved out.

4. The electronic transmission according to claim 2, characterized in that: The ends of the bracket assembly are connected to the two adjacent shafts in an openable and closable manner through elastic deformation.

5. The electronic transmission according to claim 3, characterized in that: The battery unit further comprises a reset rotation assembly; the battery fixing bracket and the battery movable bracket are hingedly connected via the reset rotation assembly; When the battery movable bracket is in a closed state, the reset rotation assembly is used to drive the first limit portion to cooperate with the second limit portion; the reset rotation assembly is also used to drive the third limit portion to cooperate with the fourth limit portion; When the battery is in an open state between activities, the user pushes the battery movable bracket to rotate relative to the battery fixed bracket with external force, and the third limiting portion and the fourth limiting portion are relatively released from the limiting cooperation, so that the battery body can be removed.

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

7. The electronic transmission according to claim 3, characterized in that: The battery movable bracket is formed with an introduction portion near the fourth limiting portion; When the first limiting portion and the second limiting portion are in a limiting matching state, an external force acts on the battery movable bracket to make the battery movable bracket rotate relative to the battery fixed bracket. In the embodiment, the introduction portion moves relative to the fourth limiting portion until the third limiting portion and the fourth limiting portion are in limiting cooperation.

8. The electronic transmission according to claim 3, characterized in that: The battery unit is arranged adjacent to the outer connecting rod, a first avoidance portion is formed on the outer connecting rod, the outer connecting rod and the battery fixing bracket and the battery movable bracket are surrounded to form a first accommodating cavity, and the first accommodating cavity is used to accommodate the battery body; Alternatively, the battery unit is arranged adjacent to the inner connecting rod, a second avoidance portion is formed on the inner connecting rod, and the inner connecting rod, the battery fixing bracket, and the battery movable bracket are arranged to form a second accommodating cavity, and the second accommodating cavity is used to accommodate the battery body.

9. The electronic transmission according to claim 3, characterized in that: The battery movable bracket is formed with abutment, and when the first limiting portion and the second limiting portion are in a limited cooperation and the third limiting portion and the fourth limiting portion are in a cooperation state, the battery fixing bracket and the abutment are in abutment; And / or, an operating portion is formed on the battery movable bracket, and a user can push the operating portion to rotate the battery movable bracket relative to the battery fixed 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, the battery unit further includes a probe connection portion, the probe connection portion is electrically connected to the base unit, a contact portion is provided on the battery body, and the probe connection portion is electrically connected to the contact portion through contact.

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