Electronic derailleur and human-powered vehicle

Abstract

This invention discloses an electronic derailleur and a human-powered vehicle. The electronic derailleur includes a base component, a movable component, a drive assembly, a connecting rod, and a chain guide, forming a parallelogram linkage mechanism. The lines connecting the two first pins and the two second pins in the parallelogram linkage mechanism form a parallelogram, and the enclosed space of the parallelogram is the internal space. A portion of the drive assembly is located in the internal space, and another portion is located outside the internal space. When the chain guide moves towards the smallest gear position, it gradually approaches the other portion of the drive assembly. By embedding the drive assembly portion within the internal space of the parallelogram linkage mechanism and utilizing the characteristic that the chain guide naturally approaches the external portion of the drive assembly when moving towards the smallest gear position, this invention significantly reduces the overall space occupied by the derailleur in its extreme working position, making the structure more compact, reducing external protrusions, and improving aesthetics and impact resistance.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts technology, and in particular to an electronic derailleur and a human-powered vehicle. Background Technology

[0002] Electronic derailleurs are widely used in the shifting systems of human-powered vehicles (such as bicycles), using electric drive to switch the chain between different sprockets. A typical electronic derailleur usually includes a base component mounted on the frame, a movable component for mounting the chain guide, and a parallelogram linkage mechanism connecting the base component and the movable component. A drive assembly (such as a power unit containing a motor and gear train) is integrated into the derailleur as a power source to drive the parallelogram linkage mechanism to achieve gear shifting.

[0003] In existing electronic derailleur designs, the relative layout of various components (such as the drive assembly, chain guide, and linkage mechanism) often fails to adequately consider the coordinated use of overall space, resulting in a derailleur that is too large and not compact enough while still fulfilling its shifting function. In particular, the spatial relationship between the chain guide and the drive assembly needs further optimization when the chain guide moves between different gear positions.

[0004] Therefore, how to make the structure more compact by improving the overall layout of the components while ensuring the normal shifting function of the electronic derailleur is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide an electronic derailleur and a human-powered vehicle, aiming to solve the problem that the electronic derailleur still needs to be improved in terms of structural compactness.

[0006] To solve the above-mentioned technical problems, the objective of this invention is achieved through the following technical solution: providing an electronic derailleur, comprising: The base component is mounted on the vehicle frame along the mounting axis; Movable component, which is movable relative to the base component; The drive assembly and the connecting rod are each pivotally connected at one end to the base component via two first pins, and at the other end to the movable component via two second pins; the base component, drive assembly, connecting rod, and movable component are constructed as a parallelogram linkage mechanism; the line connecting the two first pins and the two second pins forms a parallelogram, and the space enclosed between the two first pins and the two second pins forms the internal space of the parallelogram linkage mechanism; Chain guide, movably mounted on the movable component; Wherein, a portion of the drive assembly is located in the internal space, and another portion of the drive assembly is located outside the internal space; an inwardly inclined clearance surface is provided on the outer surface of the housing of the drive assembly, and at least a portion of the clearance surface is located on the other portion of the drive assembly located outside the internal space; The chain guide is configured such that, as it moves toward the position of the smallest gear, it moves toward the other part of the drive assembly and forms a surface gap with the clearance surface.

[0007] Furthermore, the driving component includes: shell; The motor body is installed inside the housing; A reduction gear system is installed inside the housing and is drive-connected to the motor shaft of the motor body; The output shaft is connected to the reduction gear system and extends to the outside of the housing.

[0008] Furthermore, the motor shaft is located outside the internal space.

[0009] Furthermore, the encoder magnet in the reduction gear system is located in the internal space.

[0010] Furthermore, when the chain guide is in the smallest gear position, the motor shaft of the motor body is substantially parallel to the length direction of the chain guide.

[0011] Furthermore, the motor body is located near the position where the drive assembly is pivotally connected to the base member, and the drive assembly is pivotally connected to the movable member via the output shaft; the reduction gear system is located between the motor body and the output shaft.

[0012] Furthermore, the vector direction of the motor shaft is opposite to that of the base member.

[0013] Furthermore, a clutch is provided in the transmission path of the reduction gear system. The clutch is configured to be triggered and disengaged when the reduction gear system is subjected to an external force impact, so as to prevent the external force impact from being transmitted to the motor body.

[0014] Furthermore, the drive assembly is provided with a line outlet structure for leading out the line; When the chain guide is in the minimum gear position, the position of the line outlet structure is adjacent to the motor body, the boundary of the parallelogram, and one side of the base member; When the chain guide is in the maximum gear position, the line outlet structure is at least partially located in the internal space.

[0015] This invention also provides an electronic derailleur, comprising: The base component is mounted on the vehicle frame along the mounting axis; Movable component, which is movable relative to the base component; The drive assembly and the connecting rod are each pivotally connected at one end to the base component via two first pins, and at the other end to the movable component via two second pins; the base component, drive assembly, connecting rod, and movable component are constructed as a parallelogram linkage mechanism; the line connecting the two first pins and the two second pins forms a parallelogram, and the space enclosed between the two first pins and the two second pins forms the internal space of the parallelogram linkage mechanism; Chain guide, movably mounted on the movable component; The drive assembly includes a housing, a motor body, a reduction gear system, and an output shaft. The motor body is installed inside the housing. The reduction gear system is installed inside the housing and is drive-connected to the motor shaft of the motor body. The output shaft is drive-connected to the reduction gear system and extends to the outside of the housing. Wherein, a portion of the drive assembly is located in the internal space, and another portion of the drive assembly is located outside the internal space; the motor shaft is located outside the internal space.

[0016] This invention also provides a human-powered vehicle, including the electronic chain derailleur as described above.

[0017] The beneficial effects of the embodiments of the present invention are as follows: by accommodating the drive assembly part in the internal space of the parallelogram, and utilizing the motion characteristics of the chain guide moving towards the external part of the drive assembly when it moves to the position of the smallest gear, the overall space occupied by the chain guide in the key working position is effectively compressed, making the structure more compact, while reducing external protrusions and improving the overall aesthetics of the appearance.

[0018] Furthermore, by setting an inward and downward inclined clearance surface on the housing of the drive assembly, a safe and uniform surface gap is ensured between the housing and the chain guide when the chain guide reaches the limit stroke of the minimum gear position. This avoids motion interference and minimizes the relative distance between the two components, achieving a highly compact layout of the two at the limit position. At the same time, it makes the overall shape of the derailleur smoother and without any abrupt protrusions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0020] Figure 1 A schematic diagram of the external view structure of an electronic derailleur (with the chain guide in the smallest gear position) provided in an embodiment of the present invention; Figure 2 A top-view structural schematic diagram of an electronic derailleur (with the chain guide in the smallest gear position) provided for an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the driving component provided in an embodiment of the present invention; Figure 4 A schematic diagram showing the positional relationship between the drive assembly and the chain guide (when the chain guide is in the smallest gear position) provided in an embodiment of the present invention; Figure 5 A rear-view structural schematic diagram of an electronic derailleur (with the chain guide in the smallest gear position) provided in an embodiment of the present invention; Figure 6 A schematic diagram illustrating the positional relationship between the motor shaft and the chain guide (when the chain guide is in the smallest gear position) provided for an embodiment of the present invention; Figure 7 for Figure 6 A partial structural diagram; Figure 8 A schematic diagram of the parallelogram linkage structure of the electronic derailleur (with the chain guide in the maximum gear position) provided in an embodiment of the present invention from an external perspective. Figure 9 This is a schematic diagram of the inner side view of the parallelogram linkage structure of the electronic derailleur (when the chain guide is in the maximum gear position) provided in an embodiment of the present invention.

[0021] Explanation of the markings in the image: 1. Base component; 11. First pin; 2. Movable component; 21. Second pin; 3. Drive assembly; 31. Housing; 311. Clearance surface; 32. Motor body; 321. Motor shaft; 33. Reduction gear system; 331. Clutch; 34. Output shaft; 35. Line outlet structure; 4. Connecting rod; 5. Chain guide; 6. Battery control module. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] like Figure 1 , Figure 2 and Figure 8 This invention provides an electronic derailleur that is applied to a bicycle frame and is connected to the derailleur on the frame; the electronic derailleur includes a base component 1, a movable component 2, a drive assembly 3, a connecting rod 4, and a chain guide 5; The base component 1 is mounted on the frame along the mounting axis to provide a support base for the entire electronic derailleur. The movable component 2 is movable relative to the base component 1 to achieve gear shifting. The drive assembly 3 and the connecting rod 4 act as the inner and outer connecting rods of the derailleur, respectively. One end of the drive assembly 3 and the connecting rod 4 are pivotally connected to the base component 1 via two first pins 11, and the other end of the drive assembly 3 and the connecting rod 4 are pivotally connected to the movable component 2 via two second pins 21. The base component 1, drive assembly 3, connecting rod 4, and movable component 2 are constructed as a parallelogram linkage mechanism. The line connecting the two first pins 11 and the two second pins 21 forms a parallelogram, and the space enclosed between the two first pins 11 and the two second pins 21 forms the internal space of the parallelogram linkage mechanism. The chain guide 5 is movably mounted on the movable component 2 to guide the chain onto the derailleur gear. One part of the drive assembly 3 is located in the internal space, and the other part of the drive assembly 3 is located outside the internal space; the chain guide 5 is configured to move toward the other part of the drive assembly 3 as it moves toward the position of the smallest gear.

[0027] In this embodiment, to optimize space utilization, the drive assembly 3 is configured such that a portion of its structure is located within the internal space enclosed by the parallelogram, while another portion is located outside this internal space. More importantly, when the chain guide 5 performs a shifting action and moves towards the smallest gear position, the chain guide 5 can gradually move closer to the portion of the drive assembly 3 located outside the parallelogram linkage mechanism along its movement trajectory. This arrangement allows the chain guide 5 to form a close proximity relationship with the drive assembly 3 at its extreme positions, thereby significantly reducing the overall external profile of the derailleur at the smallest gear position. The smallest gear position refers to the spatial position reached by the chain guide 5 when the derailleur guides the chain to the smallest diameter sprocket on the derailleur chain (i.e., the gear with the fewest teeth, typically corresponding to the highest speed).

[0028] Based on this, by accommodating the drive assembly 3 within the parallelogram interior space and utilizing the movement characteristics of the chain guide 5 naturally approaching the external part of the drive assembly 3 when moving towards the smallest gear position, the overall space occupied by the chain guide in the critical working position is effectively compressed, making the structure more compact. At the same time, external protrusions are reduced, improving the overall aesthetics of the appearance.

[0029] In a further embodiment, combined with Figure 4 and Figure 5 When the drive assembly 3 is in the installed state, an inwardly inclined and downwardly sloping clearance surface 311 is provided on the outer surface of the housing 31 of the drive assembly 3. At least a portion of the clearance surface 311 is located on another part of the drive assembly 3 located outside the internal space. When the chain guide 5 moves toward the minimum gear position, it can move toward the other part of the drive assembly 3 and form a surface gap with the clearance surface 311. And when the chain guide 5 moves to the minimum gear position, the clearance surface 311 extends along the length direction of the chain guide 5 relative to the chain guide 5.

[0030] In this further embodiment, to further optimize the spatial fit of the chain guide 5 when it is in the minimum gear position, an inwardly inclined and downwardly sloping clearance surface 311 is constructed on the outer surface of the housing 31. The shape and inclination angle of the clearance surface 311 are designed based on the external contour and approach path of the chain guide 5 when it moves to the minimum gear position. Specifically, the shape of the clearance surface 311 is configured such that when the chain guide 5 is in the minimum gear position, a surface gap relationship is formed between the overall outer surface of the housing 31 and the adjacent surface of the chain guide 5, rather than a simple point, line, or extremely small local gap. The surface gap design allows the opposing surface areas of the housing 31 and the chain guide 5 to face each other with a small gap when they are in the minimum gear position, adjacent to each other but without interfering with each other. The formation of this surface gap allows the housing 31 of the drive assembly 3 to better fit the movement trajectory of the chain guide 5, thereby allowing the housing 31 to extend as far as possible in the direction of the chain guide 5 while satisfying clearance requirements, occupying space that might otherwise be idle.

[0031] Based on this, this embodiment provides an inwardly inclined and downwardly sloping clearance surface 311 on the housing 31. When the chain guide 5 reaches the limit stroke of the minimum gear position, it ensures that a safe and uniform surface gap is formed between the housing 31 and the chain guide 5. This avoids motion interference and compresses the relative distance between the two components to a minimum, achieving a highly compact layout of the two at the limit position. At the same time, it makes the overall shape of the chain guide smoother and without any abrupt protrusions.

[0032] like Figure 3 As shown, in one embodiment, the drive assembly 3 includes: a housing 31, a motor body 32, a reduction gear system 33, and an output shaft 34; the motor body 32 is installed inside the housing 31; the reduction gear system 33 is installed inside the housing 31 and is drive-connected to the motor shaft 321 of the motor body 32; the output shaft 34 is drive-connected to the reduction gear system 33, extends to the outside of the housing 31, and is connected to the movable member 2.

[0033] In this embodiment, the housing 31 serves as a load-bearing and protective structure. The motor body 32 is securely mounted within the internal cavity of the housing 31 and serves as a power source. The reduction gear system 33 is also mounted inside the housing 31 and is drive-connected to the motor shaft 321 of the motor body 32, converting the high-speed, low-torque power output by the motor into low-speed, high-torque power to meet the driving force required for speed change. The output shaft 34 is drive-connected to the end of the reduction gear system 33 and extends from the inside of the housing 31 to the outside, ultimately connecting with the movable member 2. The movable member 2 can move relative to the base member 1 through the power output from the output shaft 34. Thus, by compactly integrating the motor body 32, the reduction gear system 33, and the output shaft 34 into a single housing 31, a highly modular power unit is formed. The reduction gear system 33 includes multiple gear sets, each consisting of meshing gears of different sizes, to achieve progressive speed reduction and torque amplification.

[0034] In one embodiment, based on the surface clearance design between the clearance surface 311 and the chain guide 5, the motor body 32 or the motor shaft 321 is further defined to be arranged in the same direction and close to the clearance surface 311.

[0035] In this embodiment, the motor body 32 or the motor shaft 321 is arranged inside the housing 31 along the inclined direction of the clearance surface 311, and its position is set in the same direction as the clearance surface 311 and as close as possible. The recessed and inclined clearance surface 311 reduces the thickness space inside the housing 31 corresponding to the clearance surface 311. This reduced thickness space is not suitable for the installation of the reduction gear system 33 and the output shaft 34, because both the reduction gear system 33 and the output shaft 34 have a shaft structure perpendicular to the thickness space. If the reduction gear system 33 and the output shaft 34 are installed in this thickness space, it will only increase the thickness of the housing. However, the motor body 32 or the motor shaft 321 can be installed parallel to this thickness space. Therefore, placing the motor body 32 or the motor shaft 321 here can make good use of the irregular space created by the recess of the clearance surface 311 without increasing the overall thickness of the housing 31. While meeting the design requirements of the clearance guide 5, it further improves the utilization rate of the internal space of the housing 31, making the structural layout of the entire drive assembly 3 more compact, and avoiding the waste of the originally available internal space due to the design of the clearance surface 311.

[0036] like Figure 6 and Figure 8 As shown, in one embodiment, the motor shaft 321 is located outside the internal space.

[0037] In this embodiment, the motor shaft 321 of the motor body 32 is positioned outside the internal space enclosed by the aforementioned parallelogram. That is, the motor shaft 321 does not pass through or lie within the projection area of ​​the parallelogram defined by the lines connecting the four pins. Since the overall center of gravity and volume distribution of the drive assembly 3 can be offset towards one side of the parallelogram due to the motor shaft 321 being located outside the parallelogram, the main structure of the drive assembly 3 is allowed to be embedded more deeply into the internal space of the parallelogram. This allows the drive assembly 3 to be arranged closer to the chain guide 5, especially in the lateral dimension of the chain guide (i.e., the direction perpendicular to the frame plane). The drive assembly 3 does not need to protrude additionally outward to accommodate the motor shaft 321.

[0038] More intuitively, such as Figure 6 and Figure 8 The red parallelogram shown is formed by the line connecting the two first pins 11 and the two second pins 21. When viewed along the axial direction of the pins, the motor shaft 321 is located outside the red parallelogram.

[0039] Based on this, by arranging the motor shaft 321 outside the internal space of the parallelogram, the overall protrusion size of the parallelogram linkage mechanism in the lateral direction is effectively reduced, making the entire rear derailleur structure more compact. Furthermore, the derailleur is less susceptible to lateral impacts when the vehicle is in motion or parked, thereby improving its impact resistance and durability.

[0040] Furthermore, the motor body 32 is also located outside the internal space, which can further reduce the overall lateral protrusion of the derailleur, preventing it from hitting the ground or obstacles during use. At the same time, it can make the overall structure of the derailleur more compact and adaptable to more different frame mounting spaces.

[0041] In one embodiment, the encoder magnet in the reduction gear train 33 is located in the internal space.

[0042] In this embodiment, the encoder magnet, as a key component for detecting the rotational position and speed of the gear, is generally installed on a gear (e.g., a dedicated encoder gear) in the reduction gear system 33. The encoder magnet is located in the internal space of the parallelogram, which is a relatively enclosed area and has good protection.

[0043] like Figure 6 As shown, in one embodiment, when the chain guide 5 is in the smallest gear position, the motor shaft 321 of the motor body 32 is substantially parallel to the length direction of the chain guide 5.

[0044] In this embodiment, under the specific operating conditions of the electronic derailleur, especially when the chain guide 5 is located at the position corresponding to the smallest gear, the axial direction of the motor shaft 321 of the motor body 32 inside the drive assembly 3 is set to be substantially parallel to the length direction of the chain guide 5. "Substantially parallel" here means that the angle between the central axis of the motor shaft 321 and the center line of the chain guide 5 along its extension direction is small, and visually there is no obvious tendency to cross, for example, the angle is within 10°. More preferably, this angle is 4°.

[0045] In fact, during the shifting of the chain guide 5, the orientation of the motor shaft 321 will change. However, regardless of the shifting speed, the motor shaft 321 is always outside the parallelogram. Only when the chain guide 5 is in the smallest gear position, that is, when the chain is most compact, is the motor shaft 321 of the motor body 32 basically parallel to the length direction of the chain guide 5, that is, the direction is consistent. This is to achieve the coordination between the shape of the drive assembly 3 and the direction of the chain guide 5. When the motor shaft 321 is aligned with the length direction of the chain guide 5, the motor body 32 and its housing 31 can also be compactly arranged along this direction, avoiding the local bulge or increase in width on the outside caused by the motor shaft 321 crossing the length direction of the chain guide 5.

[0046] like Figure 7 As shown, in one embodiment, the motor body 32 is located near the position where the drive assembly 3 is pivotally connected to the base member 1, and the drive assembly 3 is pivotally connected to the movable member 2 via the output shaft 34; the reduction gear system 33 is located between the motor body 32 and the output shaft 34.

[0047] In this embodiment, in the internal spatial layout of the drive assembly 3, the motor body 32, the reduction gear system 33, and the output shaft 34 have a specific relative positional relationship along the power transmission path. Specifically, the motor body 32 is arranged near the drive assembly 3, which is pivotally connected to the base member 1 via the first pin 11; that is, the motor body 32 is closer to the fixed end of the derailleur (i.e., the base member 1); the output shaft 34 of the drive assembly 3 is used to pivotally connect with the movable member 2 to realize power output; and the reduction gear system 33 is placed in the space between the motor body 32 and the output shaft 34, that is, along the direction from the base member 1 to the movable member 2, the motor body 32, the reduction gear system 33, and the output shaft 34 are arranged sequentially. In this layout, the heavier motor body 32 is arranged near the pivot point of the base component 1, which helps to reduce the inertial load of the movable component 2 during movement and improves the speed change response and control accuracy. The central arrangement of the reduction gear system 33 makes the power transmission path compact, reduces unnecessary transmission losses, and makes the center of gravity of the entire drive assembly 3 closer to the fixed end, enhancing the stability and compactness of the overall structure.

[0048] In one embodiment, the vector direction of the motor shaft 321 is opposite to that of the base member 1.

[0049] In this embodiment, the drive assembly 3 is connected to the movable member 2 via its output shaft 34 to achieve power output and drive the movable member 2 to move relative to the base member 1. Simultaneously, the control line or power line outlet structure 35 provided on the drive assembly 3 is arranged near the end of the drive assembly 3 pivotally connected to the base member 1. That is, the outlet point of the line is located on the side of the drive assembly 3 closer to the base member 1, near the pivot area where the two first pins 11 are located. Thus, under the constraint that the output shaft 34 needs to drive the movable member 2 and the wire outlet should be located near the base end, the vector direction of the motor shaft 321 of the motor body 32 is set to face away from the base member 1. Here, "facing away from the base member 1" means that the direction of the motor shaft 321 extends from the motor body 32 in a direction away from the base member 1, that is, approximately pointing towards the movable member 2 or the front of the vehicle.

[0050] With the vector direction of the motor shaft 321 facing away from the base member 1, the motor body 32 can be arranged at the end of the drive assembly 3 closest to the base member 1 (i.e., on the same side as the wire outlet structure), while the motor shaft 321 extends towards the output shaft 34. In this way, the reduction gear system 33 can be rationally arranged between the motor shaft 321 and the output shaft 34, forming a compact transmission sequence of "motor body 32—motor shaft 321—reduction gear system 33—output shaft 34". This achieves a compact power transmission path within the drive assembly 3, avoiding the need for the reduction gear system 33 to adopt a roundabout design to avoid the wire outlet, thereby effectively reducing the overall volume of the drive assembly 3.

[0051] In one embodiment, a clutch 331 is provided in the transmission path of the reduction gear system 33. The clutch 331 is configured to be triggered and disengaged when the reduction gear system 33 is subjected to an external force impact, so as to prevent the external force impact from being transmitted to the motor body 32.

[0052] In this embodiment, to protect the motor body 32 from damage by external impacts, a clutch 331 is provided in the power transmission path of the reduction gear system 33. This clutch 331 is constructed as a separable torque transmission device. During normal gear shifting operation, the clutch 331 is engaged, stably transmitting the torque from the previous stage of the reduction gear system 33 to the next stage, ultimately driving the output shaft 34. However, when a component of the reduction gear system 33 (e.g., the movable member 2 or the chain guide 5 connected to the output shaft 34) is subjected to an unexpected and large external force impact, the impact force is transmitted in reverse through the gear system to the clutch 331. At this time, the clutch 331 is designed to automatically trigger a disengagement action under the action of this impact force, that is, the engagement element inside the clutch 331 separates, thereby cutting off the power / impact transmission path from the output end to the motor body 32. Thus, even if the external impact force is large, it will be blocked at the clutch 331, preventing further transmission to the precision components of the motor body 32 such as the rotor, gears, or bearings. Therefore, the clutch 331 acts as a mechanical safety device, quickly disengaging when the reduction gear system 33 is subjected to external impact, effectively isolating the impact energy and preventing the high-cost motor body 32 from being damaged due to overload. This greatly improves the survivability and long-term reliability of the electronic derailleur in the face of unexpected situations such as drops and collisions.

[0053] like Figure 3 and Figure 9 As shown, in one embodiment, the drive assembly 3 is provided with a line outlet structure 35 for leading out the line; when the chain guide 5 is in the minimum gear position, the line outlet structure 35 is located adjacent to the motor body 32, the boundary of the parallelogram linkage mechanism and one side of the base member 1; when the chain guide 5 is in the maximum gear position, the line outlet structure 35 is at least partially located in the internal space of the parallelogram linkage mechanism.

[0054] In this embodiment, a dedicated line outlet structure 35 is provided for the connection and lead-out of electrical lines in the drive assembly 3. This line outlet structure 35 is used to safely lead wires from the motor body 32 or sensors inside the drive assembly 3 to the outside of the housing 31. Specifically, when the chain guide 5 is in the minimum gear position, the line outlet structure 35 is located in a narrow space defined by the adjacent motor body 32, one boundary of the adjacent parallelogram linkage mechanism, and one side of the adjacent base member 1. When the chain guide 5 moves to the maximum gear position under the drive assembly 3, due to the change in the shape of the parallelogram linkage mechanism, at least a portion of the line outlet structure 35, originally located in the external space, will enter the internal space of the parallelogram linkage mechanism as the position of the drive assembly 3 changes. The design utilizes the change in the internal space of the parallelogram linkage mechanism in different working positions to accommodate or expose the line outlet structure 35.

[0055] Based on this, the position of the line outlet structure 35 can be dynamically adjusted according to the position of the chain guide 5. When it is in the smallest gear position, it is close to the base component 1; when it is in the largest gear position, it partially enters the internal space and obtains better protection. This dynamic adaptability makes the entire wire harness management more efficient, without the need to reserve excessively long exposed cables, further improving the compactness and aesthetics of the overall layout.

[0056] In this embodiment, a battery control module 6 is installed on the base component 1, and the line outlet structure 35 can lead out the line in the drive component 3 and connect it to the battery control module 6, thereby realizing the complete connection of the electrical circuit.

[0057] This invention also provides an electronic derailleur, comprising: Base component 1 is mounted on the vehicle frame along the mounting axis; Movable component 2 is movable relative to base component 1; The drive assembly 3 and the connecting rod 4 are each pivotally connected at one end to the base component 1 via two first pins 11, and at the other end to the movable component 2 via two second pins 21. The base component 1, drive assembly 3, connecting rod 4 and movable component 2 are constructed as a parallelogram linkage mechanism. The line connecting the two first pins 11 and the two second pins 21 forms a parallelogram, and the space enclosed between the two first pins 11 and the two second pins 21 forms the internal space of the parallelogram linkage mechanism. Chain guide 5 is movably mounted on movable component 2.

[0058] The drive assembly 3 includes: a housing 31, a motor body 32, a reduction gear system 33, and an output shaft 34; the motor body 32 is installed inside the housing 31; the reduction gear system 33 is installed inside the housing 31 and is connected to the motor shaft 321 of the motor body 32; the output shaft 34 is connected to the reduction gear system 33, extends to the outside of the housing 31, and is connected to the movable component 2. One part of the drive assembly 3 is located in the internal space, and another part of the drive assembly 3 is located outside the internal space; the motor shaft 321 is located outside the internal space.

[0059] This embodiment provides another independently constructed electronic derailleur embodiment. This electronic derailleur also includes a base component 1, a movable component 2, a drive assembly 3, a connecting rod 4, and a chain guide 5, and their interrelationships.

[0060] In this embodiment, a portion of the drive assembly 3 is located within the internal space of the parallelogram linkage mechanism, while another portion is located externally. Furthermore, the drive assembly 3 specifically comprises a housing 31, a motor body 32, a reduction gear system 33, and an output shaft 34. The motor body 32 is mounted within the housing 31; the reduction gear system 33 is mounted within the housing 31 and is drive-connected to the motor shaft 321 of the motor body 32; the output shaft 34 is drive-connected to the reduction gear system 33, extends to the outside of the housing 31, and connects to the movable member 2. A key difference from the aforementioned embodiments is that this embodiment explicitly defines the motor shaft 321 as being located outside the internal space enclosed by the aforementioned parallelogram linkage mechanism. This limitation allows for more flexible arrangement of the motor body 32, enabling the overall center of gravity of the drive assembly 3 to be closer to the vehicle frame, while avoiding the motor shaft 321 occupying the internal space of the parallelogram.

[0061] Based on this, this embodiment places part of the drive assembly 3 inside the parallelogram and part of it outside, and specifically excludes the motor shaft 321 completely from the interior space of the parallelogram. This achieves deep integration and space accommodation between the drive assembly 3 and the linkage 4 mechanism, greatly optimizing the force transmission path and space utilization. As a result, the electronic derailleur has a more compact and simple overall shape while possessing strong driving capabilities, and effectively reduces the risk of side collisions.

[0062] This invention also provides a human-powered vehicle, including the electronic chain derailleur as described above.

[0063] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An electronic derailleur, comprising: The base component is mounted on the vehicle frame along the mounting axis; Movable component, which is movable relative to the base component; The drive assembly and the connecting rod are each pivotally connected at one end to the base component via two first pins, and at the other end to the movable component via two second pins; the base component, drive assembly, connecting rod, and movable component are constructed as a parallelogram linkage mechanism; the line connecting the two first pins and the two second pins forms a parallelogram, and the space enclosed between the two first pins and the two second pins forms the internal space of the parallelogram linkage mechanism; Chain guide, movably mounted on the movable component; The characteristic feature is that a portion of the drive assembly is located in the internal space, and another portion of the drive assembly is located outside the internal space; an inwardly inclined clearance surface is provided on the outer surface of the housing of the drive assembly, and at least a portion of the clearance surface is located on the other portion of the drive assembly located outside the internal space. The chain guide is configured such that, as it moves toward the position of the smallest gear, it moves toward the other part of the drive assembly and forms a surface gap with the clearance surface.

2. The electronic derailleur according to claim 1, characterized in that, The driving component includes: shell; The motor body is installed inside the housing; A reduction gear system is installed inside the housing and is drive-connected to the motor shaft of the motor body; The output shaft is connected to the reduction gear system and extends to the outside of the housing.

3. The electronic derailleur according to claim 2, characterized in that, The motor shaft is located outside the internal space.

4. The electronic derailleur according to claim 2, characterized in that, The encoder magnet in the reduction gear system is located in the internal space.

5. The electronic derailleur according to claim 2, characterized in that, When the chain guide is in the smallest gear position, the motor shaft of the motor body is substantially parallel to the length direction of the chain guide.

6. The electronic derailleur according to claim 2, characterized in that, The motor body is located near the base member where the drive assembly is pivotally connected, and the drive assembly is pivotally connected to the movable member via the output shaft; the reduction gear system is located between the motor body and the output shaft.

7. The electronic derailleur according to claim 2, characterized in that, The vector direction of the motor shaft is away from the base component.

8. The electronic derailleur according to claim 2, characterized in that, The transmission path of the reduction gear system is equipped with a clutch. The clutch is configured to disengage when the reduction gear system is subjected to an external force impact, so as to prevent the external force impact from being transmitted to the motor body.

9. The electronic derailleur according to claim 2, characterized in that, The drive assembly is provided with a line outlet structure for leading out the line; When the chain guide is in the minimum gear position, the position of the line outlet structure is adjacent to the motor body, the boundary of the parallelogram, and one side of the base member; When the chain guide is in the maximum gear position, the line outlet structure is at least partially located in the internal space.

10. An electronic derailleur, comprising: The base component is mounted on the vehicle frame along the mounting axis; Movable component, which is movable relative to the base component; The drive assembly and the connecting rod are each pivotally connected at one end to the base component via two first pins, and at the other end to the movable component via two second pins; the base component, drive assembly, connecting rod, and movable component are constructed as a parallelogram linkage mechanism; the line connecting the two first pins and the two second pins forms a parallelogram, and the space enclosed between the two first pins and the two second pins forms the internal space of the parallelogram linkage mechanism; Chain guide, movably mounted on the movable component; Its features are: The drive assembly includes: a housing, a motor body, a reduction gear system, and an output shaft; the motor body is installed inside the housing; the reduction gear system is installed inside the housing and is drive-connected to the motor shaft of the motor body; the output shaft is drive-connected to the reduction gear system and extends to the outside of the housing; Wherein, a portion of the drive assembly is located in the internal space, and another portion of the drive assembly is located outside the internal space; the motor shaft is located outside the internal space.

11. A human-powered vehicle, characterized in that, Including the electronic derailleur as described in any one of claims 1 to 10.

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