CN220743268U - Electronic speed changing system for bicycle - Google Patents

Abstract

The utility model discloses an electronic speed change system for a bicycle, which is installed on a bicycle frame and includes: a battery assembly, a wireless module, an electronic front derailleur and an electronic rear derailleur, wherein the electronic front derailleur and the electronic rear derailleur are connected by wires, the battery assembly and the wireless module are arranged on the electronic front derailleur, and the battery assembly is electrically connected to the wireless module and the electronic front derailleur respectively; or, the battery assembly and the wireless module are arranged on the electronic rear derailleur, and the battery assembly is electrically connected to the wireless module and the electronic rear derailleur respectively. The utility model only arranges the battery assembly and the wireless module on the electronic rear derailleur or the electronic front derailleur. On the one hand, the battery assembly and the wireless module are directly installed on the electronic rear derailleur or the electronic front derailleur, which reduces the complexity of the routing of the power supply and control lines and improves the efficiency of the installation. On the other hand, only one battery assembly and a wireless module are arranged to control the electronic front derailleur and the electronic rear derailleur, which reduces the cost.

Description

Bicycle electronic speed changing system

Technical Field

The utility model relates to the technical field of bicycles, in particular to an electronic speed changing system for bicycles.

Background technique

The electronic speed change system of a road bicycle generally includes: electronic hand shift (installed on the handlebar, operated by the user for speed change, including left and right hand shifts, which control the front and rear derailleurs respectively); electronic front derailleur (moving the chain to switch between the large and small plates of the sprocket to achieve front gear shifting); electronic rear derailleur (moving the chain to switch between the large and small plates of the flywheel to achieve rear gear shifting). Different front derailleur gears and rear derailleur gears will have different transmission ratios to achieve bicycle speed change.

In the prior art, the electronic speed change system of a bicycle generally has two power supply and control modes, which are as follows:

1. The battery and wireless module for powering the electronic front derailleur and the electronic rear derailleur are externally mounted on the frame or installed in the seat tube; the disadvantages are that the routing of the power supply and control lines is complicated, and the installation of the external power supply is complicated and the installation efficiency is low.

2. The electronic front derailleur and the electronic rear derailleur are respectively equipped with their own batteries and wireless modules. The disadvantage is that two batteries and two wireless modules are required, which is expensive.

Utility Model Content

The utility model aims to provide a bicycle electronic speed change system, aiming to solve the problems of the existing electronic speed change system, such as complex installation, low installation efficiency, or high price.

An embodiment of the utility model provides an electronic speed change system for a bicycle, which is installed on a bicycle frame and includes: a battery assembly, a wireless module, an electronic front derailleur and an electronic rear derailleur, wherein the electronic front derailleur and the electronic rear derailleur are connected via electric wires, the battery assembly and the wireless module are arranged on the electronic front derailleur, and the battery assembly is electrically connected to the wireless module and the electronic front derailleur respectively; or, the battery assembly and the wireless module are arranged on the electronic rear derailleur, and the battery assembly is electrically connected to the wireless module and the electronic rear derailleur respectively.

Further, the electronic rear derailleur comprises: a first base member, a first actuating member, a movable member and a first chain guide member, one end of the first actuating member is rotatably connected to the first base member, the other end of the first actuating member is rotatably connected to one end of the movable member, and the other end of the movable member is rotatably connected to the first chain guide member;

When the battery assembly and the wireless module are disposed on the electronic rear derailleur, the battery assembly and the wireless module are disposed on the first base member, the first actuating member, the movable member or the first chain guide member.

Further, the battery assembly is arranged on a first base component, and the wireless module is arranged on the first base component or the first actuating component.

Furthermore, the first actuating component includes: a first inner link and a first outer link, one end of the first inner link and the first outer link are rotatably connected to the first base component, the other end of the first inner link and the first outer link are rotatably connected to one end of the movable component, and the wireless module is arranged on the first inner link, wherein the distance between the first inner link and the frame is smaller than the distance between the first outer link and the frame.

Furthermore, the battery assembly is detachably disposed on the first base member, the first actuating member, the movable member or the first chain guide member.

Further, the electronic front derailleur comprises: a second base member, a second actuating member and a second chain guide member, one end of the second actuating member is rotatably connected to the second base member, and the other end of the second actuating member is rotatably connected to the second chain guide member;

When the battery assembly and the wireless module are disposed on the electronic front derailleur, the battery assembly and the wireless module are disposed on the second base member, the second actuating member or the second chain guide member.

Further, the battery assembly is arranged on a second base member, and the wireless module is arranged on the second base member or on the second actuating member.

Furthermore, the second actuating member includes: a second inner link and a second outer link, one end of the second inner link and the second outer link is rotatably connected to the second base member, the other end of the second inner link and the second outer link is rotatably connected to the second chain guide member, and the wireless module is arranged on the second inner link, wherein the distance between the second inner link and the frame is smaller than the distance between the second outer link and the frame.

Furthermore, the battery assembly is detachably disposed on the second base member, the second actuating member or the second chain guide member.

Furthermore, the electric wires are arranged along the rear chain stay of the frame.

The utility model discloses an electronic speed change system for a bicycle, which is installed on a bicycle frame and includes: a battery assembly, a wireless module, an electronic front derailleur and an electronic rear derailleur, wherein the electronic front derailleur and the electronic rear derailleur are connected by wires, the battery assembly and the wireless module are arranged on the electronic front derailleur, and the battery assembly is electrically connected to the wireless module and the electronic front derailleur respectively; or, the battery assembly and the wireless module are arranged on the electronic rear derailleur, and the battery assembly is electrically connected to the wireless module and the electronic rear derailleur respectively. The utility model only arranges the battery assembly and the wireless module on the electronic rear derailleur or the electronic front derailleur. On the one hand, the battery assembly and the wireless module are directly installed on the electronic rear derailleur or the electronic front derailleur, which reduces the complexity of the routing of the power supply and control lines and improves the efficiency of the installation. On the other hand, only one battery assembly and a wireless module are arranged to control the electronic front derailleur and the electronic rear derailleur, which reduces the cost.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a bicycle electronic speed change system in which a battery assembly is arranged on an electronic rear derailleur;

FIG2 is a schematic diagram of the structure of a bicycle electronic speed change system in which a battery assembly is arranged on an electronic front derailleur;

FIG3 is a schematic diagram of the structure of an electronic rear derailleur;

FIG4 is an exploded view of the electronic rear derailleur from a first perspective;

FIG5 is an exploded view of the electronic rear derailleur from a second perspective;

FIG6 is a schematic diagram of the structure of an electronic front derailleur;

FIG7 is an exploded view of the electronic front derailleur from a first perspective;

FIG8 is an exploded view of the electronic front derailleur from a second perspective;

The reference numerals are as follows:

1. Frame; 2. Battery assembly; 3. Electronic front derailleur; 4. Electronic rear derailleur; 5. Electrical wires; 6. First base member; 7. First actuating member; 8. Movable member; 9. First chain guide member; 10. First inner link; 11. First outer link; 12. Second base member; 13. Second actuating member; 14. Second chain guide member; 15. Second inner link; 16. Second outer link; 17. Chain stay.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and/or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or combinations thereof.

It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term “and/or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

Please refer to Figures 1 and 2. This embodiment provides a bicycle electronic speed change system, which is installed on a bicycle frame 1 and is characterized in that it includes: a battery assembly 2, a wireless module, an electronic front derailleur 3 and an electronic rear derailleur 4, the electronic front derailleur 3 and the electronic rear derailleur 4 are connected by a wire 5, the battery assembly 2 and the wireless module are arranged on the electronic front derailleur 3, and the battery assembly 2 is electrically connected to the wireless module and the electronic front derailleur 3 respectively; or, the battery assembly 2 and the wireless module are arranged on the electronic rear derailleur 4, and the battery assembly 2 is electrically connected to the wireless module and the electronic rear derailleur 4 respectively.

In this embodiment, the battery assembly 2 and the wireless module are only arranged on the electronic rear derailleur 4 or the electronic front derailleur 3. On the one hand, the battery assembly 2 and the wireless module are directly installed on the electronic rear derailleur 4 or the electronic front derailleur 3, which reduces the complexity of routing the power supply and control lines and improves the efficiency of installation. On the other hand, only one battery assembly 2 and a wireless module are arranged to control the electronic front derailleur 3 and the electronic rear derailleur 4, which reduces the cost.

Please refer to FIGS. 3-5 , the electronic rear derailleur 4 includes: a first base member 6, a first actuating member 7, a movable member 8 and a first chain guide member 9, one end of the first actuating member 7 is rotatably connected to the first base member 6, the other end of the first actuating member 7 is rotatably connected to one end of the movable member 8, and the other end of the movable member 8 is rotatably connected to the first chain guide member 9;

When the battery assembly 2 and the wireless module are disposed on the electronic rear derailleur 4 , the battery assembly 2 and the wireless module are disposed on the first base member 6 , the first actuating member 7 , the movable member 8 or the first chain guide member 9 .

Furthermore, the battery assembly 2 is arranged on the first base member 6, and the wireless module is arranged on the first base member 6 or the first actuating member 7. The first base member 6 is fixed, and the battery assembly 2 is installed on the first base member 6, which is convenient for installation, and the battery assembly 2 will not be affected by the speed change operation of the electronic rear derailleur 4, and the installation reliability and stability are stronger. The wireless module is arranged on the first base member 6 or the first actuating member 7, and the wireless module is closer to the battery assembly 2 arranged on the first base member 6, so that the wiring between the wireless module and the battery assembly 2 is simpler and the installation efficiency is higher.

Furthermore, the first actuating member 7 includes: a first inner link 10 and a first outer link 11, one end of the first inner link 10 and the first outer link 11 are rotatably connected to the first base member 6, and the other end of the first inner link 10 and the first outer link 11 are rotatably connected to one end of the movable member 8, and the wireless module is arranged on the first inner link 10, wherein the distance between the first inner link 10 and the frame 1 is smaller than the distance between the first outer link 11 and the frame 1, and the first inner link 10 is close to the inner side of the frame 1. The wireless module is installed on the first inner link 10, so that during riding and use, the possibility of the wireless module being hit is small, which greatly reduces the damage rate of the wireless module and reduces the maintenance and replacement costs.

In some embodiments, when the bicycle falls, the battery assembly 2 and the wireless module may be damaged after colliding with the ground. In order to avoid damage to the battery assembly 2 and the wireless module caused by the collision with the ground, the battery assembly 2 and the wireless module can be set in the electronic rear derailleur 4. When the bicycle falls, the battery assembly 2 and the wireless module will not collide with the ground, but other components on the electronic rear derailleur 4 will collide with the ground.

In some embodiments, in order to achieve quick installation and replacement of the battery assembly 2, the battery assembly 2 of this embodiment is detachably arranged on the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9. When a problem occurs with the battery assembly 2, it can be conveniently removed and replaced without replacing the entire electronic rear derailleur 4. When the battery assembly 2 is out of power, a new fully charged battery assembly 2 can be replaced, which saves charging time and improves the user experience.

Among them, there are two ways of detachable setting. One is to set a position for installing the battery assembly 2 in the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9, and realize the detachable connection by removing or installing the battery assembly 2 at this position. However, this method will affect the structure of the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9, and the R&D personnel need to redesign the structure, which greatly increases the cost of the entire product. The other is to directly install the battery assembly 2 on the outer surface of the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9. This structure only needs to set a structure connected with the battery assembly 2 on the outer surface of the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9. The modification is simple, the production cost is low, and it can be directly installed on a variety of electronic rear derailleur 4 products, with little impact on the original structure of the electronic rear derailleur 4. The structural design can also be used to replace battery assemblies 2 of different capacities or specifications to meet different power requirements.

However, there is a risk of the battery assembly 2 colliding with the ground when the battery assembly 2 is directly mounted on the outer surface of the first base member 6, the first actuating member 7, the movable member 8 or the first chain guide member 9. To solve this problem, the battery assembly 2 of the present embodiment is arranged in the following position: when the battery assembly 2 is arranged on the first base member 6, the farthest distance between the battery assembly 2 and the frame 1 is less than the farthest distance between the first base member 6 and the frame 1; or, when the battery assembly 2 is arranged on the first actuating member 7, the farthest distance between the battery assembly 2 and the frame 1 is less than the farthest distance between the first actuating member 7 and the frame 1; or, when the battery assembly 2 is arranged on the movable member 8, the farthest distance between the battery assembly 2 and the frame 1 is less than the farthest distance between the movable member 8 and the frame 1; or, when the battery assembly 2 is arranged on the first chain guide member 9, the farthest distance between the battery assembly 2 and the frame 1 is less than the farthest distance between the first chain guide member 9 and the frame 1. Such a design can ensure that when the bicycle falls, the battery assembly 2 on the electronic rear derailleur 4 will never collide with the ground, but other devices on the electronic rear derailleur 4 will collide with the ground.

Please refer to Figures 6-8. In this embodiment, the electronic front derailleur 3 includes: a second base component 12, a second actuating component 13 and a second chain guide component 14. One end of the second actuating component 13 is rotatably connected to the second base component 12, and the other end of the second actuating component 13 is rotatably connected to the second chain guide component 14. When the battery assembly 2 and the wireless module are arranged on the electronic front derailleur 3, the battery assembly 2 and the wireless module are arranged on the second base component 12, the second actuating component 13 or the second chain guide component 14.

Furthermore, the battery assembly 2 is arranged on the second base member 12, and the wireless module is arranged on the second base member 12 or on the second actuating member 13. The second base member 12 is fixed. The battery assembly 2 is installed on the second base member 12, which is convenient for installation. The battery assembly 2 will not be affected by the speed change operation of the electronic rear derailleur 4, and the installation reliability and stability are stronger. The wireless module is arranged on the second base member 12 or the second actuating member 13, and the wireless module is closer to the battery assembly 2 arranged on the second base member 12, which makes the wiring between the wireless module and the battery assembly 2 simpler and the installation efficiency higher.

Furthermore, the second actuating member 13 includes: a second inner link 15 and a second outer link 16, one end of the second inner link 15 and the second outer link 16 are rotatably connected to the second base member 12, the other ends of the second inner link 15 and the second outer link 16 are rotatably connected to the second chain guide member 14, and the wireless module is arranged on the second inner link 15, wherein the distance between the second inner link 15 and the frame 1 is smaller than the distance between the second outer link 16 and the frame 1, and the second inner link 15 is close to the inner side of the frame 1. The wireless module is installed on the second inner link 15, so that during riding and use, the possibility of the wireless module being hit is small, which greatly reduces the damage rate of the wireless module and reduces the maintenance and replacement costs.

Furthermore, in order to enhance the convenience of installation and replacement of the battery assembly 2, the battery assembly 2 of the present embodiment is detachably arranged on the second base member 12, the second actuating member 13 or the second chain guide member 14. When a problem occurs with the battery assembly 2, it can be conveniently disassembled and replaced without replacing the entire electronic rear derailleur 4. Moreover, when the battery assembly 2 is out of power, a new fully charged battery assembly 2 can be replaced, which saves charging time and improves the user experience.

To ensure that the battery assembly 2 does not have the risk of colliding with the ground, the maximum distance between the battery assembly 2 and the frame 1 in this embodiment is smaller than the maximum distance between the second base member 12 and the frame 1; or, the maximum distance between the battery assembly 2 and the frame 1 is smaller than the maximum distance between the second actuating member 13 and the frame 1; or, the maximum distance between the battery assembly 2 and the frame 1 is smaller than the maximum distance between the second chain guide member 14 and the frame 1. Such a design can ensure that when the bicycle falls, the battery assembly 2 on the electronic rear derailleur 4 will never collide with the ground, but other devices on the electronic rear derailleur 4 will collide with the ground.

It should be noted that the above-mentioned other structural designs for setting the battery assembly 2 and the wireless module on the electronic rear derailleur 4 can also be used for setting the battery assembly 2 and the wireless module on the electronic front derailleur 3, and the design method is generally similar, which will not be elaborated on.

In this embodiment, the electronic front derailleur 3 and the electronic rear derailleur 4 are connected via an electric wire 5 , which can transmit control signals and supply power for the speed change of the electronic front derailleur 3 or the electronic rear derailleur 4 .

Furthermore, the electric wires 5 of the present embodiment are arranged along the rear lower fork 17 of the frame 1 , which reduces the routing of the electric wires 5 and makes the installation of the electric wires 5 more convenient.

In order to improve the installation efficiency of the wire 5, a plurality of installation structures are provided on the frame 1 of the present embodiment between the electronic front derailleur 3 and the electronic rear derailleur 4. The installation structure is a circular hole with an opening, and the wire 5 is installed in the circular hole through the opening. The arrangement of the installation structure can improve the installation efficiency of the wire 5 on the one hand, and standardize the installation position of the wire 5 on the other hand, to prevent the exposed wire 5 from getting stuck in the wheel during riding and causing corresponding danger to riding.

The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive.

Inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims (10)

1. An electronic bicycle transmission system mounted on a frame of a bicycle, comprising: the electronic front dial and the electronic rear dial are connected through wires, the battery assembly and the wireless module are arranged on the electronic front dial, and the battery assembly is respectively and electrically connected with the wireless module and the electronic front dial; or the battery assembly and the wireless module are arranged on the electronic rear dial, and the battery assembly is respectively and electrically connected with the wireless module and the electronic rear dial.

2. The electronic bicycle shifting system of claim 1, wherein the electronic rear derailleur comprises: a first base member, a first actuating member, a movable member, and a first chain guide member, one end of the first actuating member being rotatably connected to the first base member, the other end of the first actuating member being rotatably connected to one end of the movable member, the other end of the movable member being rotatably connected to the first chain guide member;

when the battery assembly and the wireless module are disposed on the electronic rear derailleur, the battery assembly and the wireless module are disposed on the first base member, the first actuating member, the movable member or the first chain guide member.

3. The electronic bicycle shifting system of claim 2, wherein the battery assembly is disposed on a first base member and the wireless module is disposed on the first base member or the first actuating member.

4. The electronic bicycle shifting system of claim 3, wherein the first actuating member comprises: the wireless module is arranged on the first inner connecting rod, wherein the distance between the first inner connecting rod and the frame is smaller than the distance between the first outer connecting rod and the frame.

5. The electronic bicycle shifting system of claim 2, wherein the battery assembly is removably disposed on the first base member, the first actuating member, the movable member or the first chain guide member.

6. The electronic bicycle shifting system of claim 1, wherein the electronic front derailleur comprises: a second base member, a second actuating member, and a second chain guide member, one end of the second actuating member being rotatably connected to the second base member and the other end of the second actuating member being rotatably connected to the second chain guide member;

when the battery assembly and the wireless module are disposed on the electronic front derailleur, the battery assembly and the wireless module are disposed on the second base member, the second actuating member or the second chain guide member.

7. The electronic bicycle shifting system of claim 6, wherein the battery assembly is disposed on a second base member and the wireless module is disposed on the second base member or the second actuating member.

8. The electronic bicycle shifting system of claim 7, wherein the second actuating member comprises: the second inner connecting rod and the second outer connecting rod, the second inner connecting rod with the one end of second outer connecting rod with the second base component rotates to be connected, the second inner connecting rod with the other end of second outer connecting rod with the second chain guide component rotates to be connected, wireless module sets up on the second inner connecting rod, wherein, the second inner connecting rod with the distance of frame is less than the second outer connecting rod with the distance of frame.

9. The bicycle electronic shifting system of claim 6, wherein the battery assembly is removably disposed on the second base member, the second actuating member or the second chain guide member.

10. The electronic bicycle shifting system of claim 1, wherein the electrical wire is disposed along a rear bottom fork of the frame.