Electronic rear derailleur and variable speed bicycle

Abstract

According to the electronic rear shifting device and the variable-speed bicycle, one end of the charging module is arranged on the power line module, the other end of the charging module is connected with the external power supply, so that the external power supply charges the rechargeable battery through the charging module and the power line module, and the charging scheme does not need to pass through a rear shifting main body; the charging efficiency is improved, the whole structure is simple, installation is easy, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle rear derailleurs, in particular to an electronic rear derailleur and a speed-changing bicycle. Background Art

[0002] In the prior art, an electronic shifting kit (such as an electronic rear derailleur) has two types of batteries to supply the power required for its operation, one is a removable battery and the other is a non-removable battery, and each battery has a different charging scheme. For the charging scheme of the non-removable battery, the charging module is usually set on the rear derailleur body. This setting method requires opening and sealing the rear derailleur body. However, there are many parts on the rear derailleur body. When opening the holes, care must be taken not to affect the use of the parts. This makes the entire setting process complicated and costly. In addition, during the charging process, the battery needs to be charged through the circuit of the rear derailleur body. This charging method is prone to power loss, thereby reducing the efficiency of battery charging. Utility Model Content

[0003] The utility model aims to provide an electronic rear derailleur and a speed-changing bicycle, aiming to solve the problem that a charging module of the existing electronic rear derailleur is arranged on the rear derailleur body.

[0004] The utility model embodiment provides an electronic rear derailleur, comprising: a rear derailleur main body;

[0005] A power line module; one end of the power line module is electrically connected to the rear derailleur body, and the other end of the power line module is electrically connected to a rechargeable battery disposed outside the rear derailleur body;

[0006] A charging module, one end of which is disposed on the power line module and electrically connected to the power line module, and the other end of which is connected to an external power source, and the charging module is used to charge the rechargeable battery via the power line module.

[0007] Specifically, the power cord module includes a rear derailleur end and a battery end, one end of the rear derailleur end is electrically connected to the rear derailleur body, the other end of the rear derailleur end is electrically connected to one end of the battery end, and the other end of the battery end is electrically connected to the rechargeable battery.

[0008] Specifically, the charging module is arranged on the rear derailleur end or the battery end, or is arranged between the rear derailleur end and the battery end.

[0009] Specifically, the charging module includes a first charging interface and a charging cable, one end of the charging cable is electrically connected to the first charging interface, and the other end of the charging cable is electrically connected to the external power supply. A second charging interface is set on the power line module, and the first charging interface is electrically connected to the second charging interface.

[0010] Specifically, the first charging interface and the second charging interface are connected by magnetic attraction.

[0011] Specifically, the first charging interface and the second charging interface are USB connections.

[0012] Specifically, the charging module also includes a mounting portion, and the second charging interface is arranged on the mounting portion.

[0013] Specifically, the first charging interface and the second charging interface are both circular.

[0014] Specifically, the other end of the rear derailleur end and one end of the battery end are both cylindrical interfaces, one of the cylindrical interfaces has a groove, the other cylindrical interface is fitted in the groove, and the two cylindrical interfaces are electrically connected.

[0015] The utility model also provides a speed-changing bicycle, comprising a bicycle body and the electronic rear derailleur as described above.

[0016] The utility model provides an electronic rear derailleur and a speed-changing bicycle. The electronic rear derailleur sets one end of a charging module on a power line module and connects the other end to an external power source, so that the external power source charges a rechargeable battery through the charging module and the power line module. This charging solution does not require passing through the rear derailleur body, thereby improving the charging efficiency. In addition, the entire setting structure is simple, easy to install, and has a reduced maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 An exploded view of an electronic rear derailleur provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A magnified view of the structure of A;

[0020] Figure 3 A structural diagram of an electronic rear derailleur provided in an embodiment of the utility model.

[0021] Description of the symbols in the figure:

[0022] 1. Rear derailleur body;

[0023] 2. Power cord module; 21. Rear derailleur end; 22. Battery end; 23. Second charging port;

[0024] 3. Charging module; 31. First charging interface; 32. Charging cable; 33. Installation part. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] See also Figure 1-Figure 2 The embodiment of the utility model provides an electronic rear derailleur, comprising: a rear derailleur body 1; a power line module 2; one end of the power line module 2 is electrically connected to the rear derailleur body 1, and the other end of the power line module 2 is electrically connected to a rechargeable battery arranged outside the rear derailleur body 1; a charging module 3, one end of the charging module 3 is arranged on the power line module 2 and electrically connected to the power line module 2, and the other end of the charging module 3 is connected to an external power source, and the charging module 3 is used to charge the rechargeable battery through the power line module 2.

[0030] In this embodiment, the electronic rear derailleur mainly includes a rear derailleur body 1, a power line module 2 and a charging module 3, wherein the charging module 3 is arranged on the power line module 2, and the rechargeable battery (hereinafter collectively referred to as the battery) can be charged separately through the charging module 3. There are two charging schemes for the entire electronic rear derailleur, one is the charging scheme of the rear derailleur body 1, and the other is the charging scheme of the battery. The charging scheme of the rear derailleur body 1 is that the battery flows through the power line module 2 to the rear derailleur body 1 for charging, and the charging scheme of the battery is that the external power flows through the charging module 3 and the power line module 2 to the battery for charging. It can be seen from the two charging schemes that the battery is used to charge the rear derailleur body 1, and the charging module 3 is used to charge the battery. During the charging process, although both charging schemes pass through the power line module 2, the battery charging circuit can directly charge the battery without passing through the rear derailleur body 1, thereby improving the charging efficiency of the battery. In addition, since the prior art sets the charging module 3 on the rear derailleur body 1, the prior art still needs to additionally open holes and seal the rear derailleur body 1. This setting method is relatively complicated, and the battery also passes through the rear derailleur body 1 during charging, which is easy to consume electricity during the charging process, thereby reducing the charging efficiency of the battery. Therefore, the present embodiment sets the charging module 3 on the power cord module 2 without passing through the rear derailleur body 1, which not only improves the charging efficiency, but also reduces unnecessary openings and sealing, optimizes the structural space, and also improves the convenience, reliability and protection performance of the product, and is also conducive to the later maintenance of the battery.

[0031] In addition, since there are two charging schemes in the embodiment of the present application, an indication direction can be set on the surface of the power cord module 2. If the indication direction is toward the battery, it means that the battery is being charged, and vice versa, it means that the rear derailleur body 1 is being charged, wherein the indication direction can be represented by an arrow. Alternatively, a charging reminder sound is set on the electronic rear derailleur, and the device to be charged can be known according to the reminder sound.

[0032] An indicator light may also be provided on the battery or the rear derailleur body 1. If the object currently being charged is being charged but not fully charged, a red light is displayed. If the object currently being charged is being charged and fully charged, a green light is displayed. A power display may also be provided to directly observe the current charging power, and the current power may also be intuitively seen, and whether charging is required may be determined based on the current power. Specifically, a low power detector may be provided. If the low power detector detects that the current power is lower than a preset value, a corresponding charging reminder sound is emitted to prompt the user to charge the corresponding charging device.

[0033] A timing device may also be provided on the electronic rear derailleur, which can both regularly detect the health of the device, such as battery failure, and perform repairs if a failure is detected; and can also regularly charge the rear derailleur body 1 and the battery so that the electronic rear derailleur has sufficient power to operate.

[0034] Specifically, Figure 2 As shown, the power cord module 2 includes a rear derailleur end 21 and a battery end 22, one end of the rear derailleur end 21 is electrically connected to the rear derailleur body 1, the other end of the rear derailleur end 21 is electrically connected to one end of the battery end 22, and the other end of the battery end 22 is electrically connected to a rechargeable battery.

[0035] In this embodiment, the power line module 2 is arranged between the battery and the rear derailleur body 1 and electrically connects the battery and the rear derailleur body 1, so that the battery can charge the rear derailleur body 1 through the power line module 2. If the battery power is exhausted or the battery fails and cannot provide power to the rear derailleur body 1, the power line module 2 can also be connected to an external power source at this time, and then the rear derailleur body 1 is charged through the external power source, so that the electronic rear derailleur can be used normally. It should be noted that the external power source of this embodiment is different from the other end of the charging module 3 connected to the external power source, because the external power source of this embodiment is connected to the other end of the power line module 2 (i.e., the other end of the battery end 22), and the external power flows through the power line module 2 to the rear derailleur body 1 for charging, that is, the external power source of this embodiment cannot charge the battery.

[0036] Since the power cord module 2 often needs to be plugged in or unplugged, and the surface of the power cord module 2 is smooth, the user usually needs to use a lot of force to unplug it, so it is preferred to set an anti-slip device on the surface of the power cord module 2 to increase friction, so as to facilitate the user to unplug the power cord. A protective layer can also be set on the outside of the power cord module 2 to prevent the power cord module 2 from being broken due to excessive use.

[0037] Specifically, Figure 3 As shown, the other end of the rear derailleur end 21 and one end of the battery end 22 are both cylindrical interfaces, one of which has a groove, the other cylindrical interface is fitted in the groove, and the two cylindrical interfaces are electrically connected.

[0038] This embodiment mainly describes the electrical connection method between the other end of the rear derailleur end 21 and one end of the battery end 22. Through this electrical connection method, the connection between the rear derailleur end 21 and the battery end 22 can be more compatible, thereby improving the charging efficiency. In addition, the electrical connection method between one end of the rear derailleur end 21 and the rear derailleur body 1 can also be the same as that of this embodiment. This electrical connection method can be plugged in and out at will, that is, when the rear derailleur body 1 or the battery does not need to be charged, the connection (i.e., the connection between the rear derailleur body 1 and the power line module 2 or the connection between the rear derailleur end 21 and the battery end 22) can be separated, otherwise it can be plugged back to make an electrical connection.

[0039] Specifically, the charging module 3 is disposed on the rear derailleur end 21 or the battery end 22 , or between the rear derailleur end 21 and the battery end 22 .

[0040] In this embodiment, since the charging module 3 of the present application is arranged on the power line module 2, and the power line module 2 is used to connect the battery and the rear derailleur body 1, the charging module 3 only needs to be able to charge the battery alone without passing through the rear derailleur body 1. The charging module 3 can be preferably arranged on the rear derailleur end 21, or it can be arranged on the battery end 22, and it can also be selected to be arranged between the rear derailleur end 21 and the battery end 22. These three arrangements can all enable the charging module 3 to charge the battery without passing through the rear derailleur body 1, thereby improving the charging rate. In addition, during the process of charging the battery by the charging module 3, the battery can also supply power to the rear derailleur body 1 through the power line module 2, but this method is easy to damage the battery when used for a long time. At this time, the current charging power of the battery can be checked, and the rear derailleur body 1 can be supplied with power after the battery stores a certain amount of power. If the electronic rear derailleur is used in an emergency, the rear derailleur body 1 can be directly supplied with power through an external power supply.

[0041] Specifically, Figure 2-Figure 3 As shown, the charging module 3 includes a first charging interface 31 and a charging cable 32, one end of the charging cable 32 is electrically connected to the first charging interface 31, and the other end of the charging cable 32 is electrically connected to an external power supply. A second charging interface 23 is set on the power line module 2, and the first charging interface 31 is electrically connected to the second charging interface 23.

[0042] As can be seen from the above embodiments, there are three ways to set the charging module 3 on the power line module 2. In order to facilitate the electrical connection between the first charging interface 31 and the second charging interface 23, the second charging interface 23 can also be correspondingly set on the rear derailleur end 21 or the battery end 22, or between the rear derailleur end 21 and the battery end 22, that is, the location where the charging module 3 is set corresponds to the location where the second charging interface 23 is set. This embodiment is mainly specifically described for the case where the second charging interface 23 is set on the rear derailleur end 21. Specifically, the rear derailleur end 21 is provided with a second charging interface 23, and is electrically connected to the first charging interface 31 of the charging module 3 through the second charging interface 23, and then the external power supply is electrically connected to the charging line 32 of the charging module 3, so that the charging circuit of the battery is charged by the external power supply through the second charging interface 23, the first charging interface 31 and the charging line 32. In other specific embodiments, the case where the second charging interface 23 is set at the battery end 22 or between the rear derailleur end 21 and the battery end 22 can refer to this embodiment.

[0043] In a specific embodiment, the first charging interface 31 and the second charging interface 23 include two electrical connection modes, such as Figure 3 As shown, the first type is a magnetic connection, that is, the first charging interface 31 and the second charging interface 23 are set as magnetic interfaces, one of the charging interfaces is a magnetic charging socket, the other charging interface is a magnetic charging head, and the charging cable 32 is set as a magnetic charging cable.

[0044] In this embodiment, the materials of the two charging interfaces and the charging line can be directly set to magnetic materials, and then the first charging interface 31 and the second charging interface 23 are electrically connected through mutual attraction, so that the charging module 3 is powered on. Among them, the first charging interface 31 and the second charging interface 23 are both circular, which is convenient for the two charging interfaces to contact, thereby enhancing the magnetic attraction effect, and the circular interface is small in size, simple in structure, and easy to install. In addition, magnetic parts can be set on the contact surfaces of the two charging interfaces respectively, so that the two charging interfaces are tightly connected when in contact, so that the charging module 3 is powered on.

[0045] The second is a non-magnetic connection, for example, the first charging interface 31 and the second charging interface 23 are set to USB connection, one of the charging interfaces is a USB interface, the other charging interface is a USB plug, and the charging cable 32 is set to a USB charging cable. The USB connection method can achieve a plug-in effect, which is convenient for users to choose to plug or unplug according to actual scenarios.

[0046] In addition, the non-magnetic connection can also be set as a sliding connection, that is, the first charging interface 31 can slide on the second charging interface 23, and the charging cable 32 is set as a common charging cable (such as a USB cable) and can slide with the first charging interface 31. Specifically, when the first charging interface 31 slides to the second charging interface 23 and aligns with the second charging interface 23, the charging module 3 can be used; if the charging module 3 is not used, the first charging interface 31 is slid out of the range of the second charging interface 23 and waits for the next use before sliding to the designated position.

[0047] Specifically, Figure 2-Figure 3 As shown, the charging module 3 further includes a mounting portion 33 , and the second charging interface 23 is disposed on the mounting portion 33 .

[0048] This embodiment is specifically described by setting the charging module 3 on the rear derailleur end 21. The charging module 3 is sleeved on the rear derailleur end 21 through the mounting portion 33, and is electrically connected to the rear derailleur end 21 through the second charging interface 23, so that the charging module 3 can be used normally. The setting of the charging module 3 enables the charging circuit of the battery to charge the battery without passing through the rear derailleur body 1, thereby improving the charging efficiency of the battery. If a battery failure occurs later, only the charging circuit of the battery needs to be checked, which is convenient for later maintenance.

[0049] The utility model also provides a speed-changing bicycle, comprising a bicycle body and the electronic rear derailleur as described above.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An electronic rear derailleur, characterized in that: include: Rear derailleur body; Power cord module; One end of the power line module is electrically connected to the rear derailleur body, and the other end of the power line module is electrically connected to a rechargeable battery disposed outside the rear derailleur body; A charging module, one end of which is disposed on the power line module and electrically connected to the power line module, and the other end of which is connected to an external power source, and the charging module is used to charge the rechargeable battery via the power line module.

2. The electronic rear derailleur according to claim 1, characterized in that: The power line module includes a rear derailleur end and a battery end, one end of the rear derailleur end is electrically connected to the rear derailleur body, the other end of the rear derailleur end is electrically connected to one end of the battery end, and the other end of the battery end is electrically connected to the rechargeable battery.

3. The electronic rear derailleur according to claim 2, characterized in that: The charging module is arranged on the rear derailleur end or the battery end, or between the rear derailleur end and the battery end.

4. The electronic rear derailleur according to claim 3, characterized in that: The charging module includes a first charging interface and a charging cable, one end of the charging cable is electrically connected to the first charging interface, and the other end of the charging cable is electrically connected to the external power supply. A second charging interface is arranged on the power line module, and the first charging interface is electrically connected to the second charging interface.

5. The electronic rear derailleur according to claim 4, characterized in that: The first charging interface and the second charging interface are connected by magnetic attraction.

6. The electronic rear derailleur according to claim 4, characterized in that: The first charging interface and the second charging interface are USB connections.

7. The electronic rear derailleur according to claim 4, characterized in that: The charging module also includes a mounting portion, and the second charging interface is arranged on the mounting portion.

8. The electronic rear derailleur according to claim 4, characterized in that: The first charging interface and the second charging interface are both circular.

9. The electronic rear derailleur according to claim 2, characterized in that: The other end of the rear derailleur end and one end of the battery end are both cylindrical interfaces, one of the cylindrical interfaces has a groove, the other cylindrical interface is sleeved in the groove and the two cylindrical interfaces are electrically connected.

10. A speed-changing bicycle, characterized in that: The invention comprises a bicycle body and the electronic rear derailleur as claimed in any one of claims 1 to 9.

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