A battery module for an electric derailleur and an electric derailleur.

Abstract

This utility model discloses a battery module for an electric derailleur. The electric derailleur includes a battery mounting portion with a power input terminal, and the battery module includes a battery fixing portion with a power output terminal. The battery fixing portion is adapted to be detachably mounted on the battery mounting portion so that the power input terminal and the power output terminal are in contact. The charging interface of the battery module is located on the wall surface where the battery fixing portion and the battery mounting portion meet. Compared to designs where the charging interface is exposed, the charging interface of the battery module in this application is located on the wall surface where the battery fixing portion and the battery mounting portion meet, which helps to avoid damage to the battery module. This application also provides an electric derailleur.

Description

Technical Field

[0001] This utility model relates to derailleur technology for bicycles, specifically to a battery module for an electric derailleur and an electric derailleur. Background Technology

[0002] A derailleur is a crucial component of a multi-speed bicycle, used to shift the chain between different sized chainrings to achieve gear changes. Existing derailleurs include manual derailleurs pulled by a steel cable and electric derailleurs driven by a motor. Common electric derailleurs typically include a drive unit and a rechargeable battery module, which is detachably mounted on the battery mounting section. To allow the battery module to charge without being removed, existing electric derailleurs usually expose the charging port, which is protected with a rubber plug when not charging. A drawback of existing electric derailleur battery modules is that if the user fails to properly install the protective plug, rainwater or mud can enter the charging port, damaging the battery module and preventing it from charging. Therefore, this application is submitted. Utility Model Content

[0003] The technical problem this utility model aims to solve is how to address the issue of damage to the battery module of an electric derailleur caused by accidental water ingress.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a battery module for an electric derailleur, the electric derailleur including a battery mounting part with a power input terminal, the battery module including a battery fixing part with a power output terminal, the battery fixing part being adapted to be detachably mounted on the battery mounting part so that the power input terminal and the power output terminal are in contact; the interface of the charging part of the battery module is opened on the wall surface where the battery fixing part and the battery mounting part meet.

[0005] Preferably, the interface between the power output terminal and the charging unit is located on the same side of the battery fixing unit.

[0006] Preferably, the terminal of the charging part extends from the wall surface, and the wall surface where the battery mounting part and the battery fixing part are joined is provided with a receiving groove for embedding the terminal; the battery mounting part is provided with an annular sealing ring, and the power input terminal and the receiving groove are located on the inner circumference of the annular sealing ring.

[0007] This application also provides an electric derailleur, comprising: a base member having a battery mounting portion thereon, the battery mounting portion being configured with a power input terminal; a linkage assembly pivotally connected to the base member; a drive device mounted on the linkage assembly; and a rechargeable battery module including a battery fixing portion configured with a power output terminal, the battery fixing portion being detachably mounted to the battery mounting portion such that the power input terminal and the power output terminal are in contact; the charging interface of the battery module is opened on the wall surface where the battery fixing portion and the battery mounting portion meet.

[0008] Preferably, the terminals of the charging part extend from the wall surface, and the wall surface where the battery mounting part and the battery fixing part are joined is provided with a receiving groove for embedding the terminals.

[0009] Preferably, the interface between the power output terminal and the charging unit is located on the same side of the battery fixing unit.

[0010] Preferably, the battery mounting portion is provided with an annular sealing ring, and the power input terminal and the receiving groove are located on the inner circumference of the annular sealing ring.

[0011] Preferably, the battery fixing part is provided with an annular protrusion corresponding to the position of the annular sealing ring.

[0012] Preferably, the battery fixing part is generally in the shape of a flat cuboid, and the battery mounting part is a matching flat cuboid groove.

[0013] Preferably, the interface of the charging part is located on the bottom side of the battery fixing part.

[0014] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: 1. Compared to the design of exposed charging interface, the battery module of the electric derailleur of this application has its charging interface opened on the wall where the battery fixing part and the battery mounting part meet. This design can avoid the charging interface being exposed. After the electric derailleur is installed on the bicycle, rainwater and mud are less likely to enter the charging interface, which helps to avoid damage to the battery module. 2. The annular sealing ring prevents rainwater and mud from entering the interface of the power access terminal and the charging part of the battery module; 3. The battery fixing part is provided with an annular protrusion corresponding to the position of the annular sealing ring. The annular protrusion can be used with the annular sealing ring to help improve the sealing effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0016] Figures 1 to 3 Schematic diagrams of an embodiment of an electric derailleur are shown from different perspectives; Figure 4 and Figure 5 First exploded views of an embodiment of an electric derailleur are shown from different perspectives. Figure 6 A schematic diagram of the base components is shown; Figure 7 and Figure 8 Schematic diagrams of a battery module according to an embodiment are shown from different perspectives; Figure 9 An exploded view of a battery module according to one embodiment is shown; Figure 10 An exploded view of the second link of one embodiment is shown.

[0017] Figure label: Base component 1, first connecting rod 2, second connecting rod 3, rechargeable battery module 4, terminal 4A, power output terminal 4B, charging indicator light 4C, drive device 5, receiving groove 1A, power input terminal 1B, and annular sealing ring Q. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0020] Combination Figures 1 to 10 In one embodiment, the electric derailleur of this application includes a base component 1, a first connecting rod 2, a second connecting rod 3, a rechargeable battery module 4, and a drive device 5. The first connecting rod 2 and the second connecting rod 3 cooperate to form a connecting rod assembly. The chain guide and other components of the electric derailleur are omitted in the illustrations; they can be understood in conjunction with prior art such as patent applications CN202310958199.8 and CN202322046737.4, and will not be described further.

[0021] The base component 1 is configured to be mounted on a bicycle frame, so that the electric derailleur is mounted on the bicycle frame via the base component 1. The base component 1 can be connected to the bicycle frame via screws, buckles, straps, or other structures. Figure 6 The base component 1 is provided with a battery mounting part S. In this embodiment, the battery mounting part S is a flat rectangular groove. The bottom wall of the battery mounting part S is a wall that engages with the battery fixing part T2. This wall is provided with a receiving groove 1A, a power input terminal 1B, and an annular sealing ring Q. The power input terminal 1B and the receiving groove 1A are located on the inner circumference of the annular sealing ring Q. The receiving groove 1A is used to embed the terminal 4A of the charging part of the battery module 4. The annular sealing ring Q can play a sealing role. After the battery fixing part T2 of the battery module 4 is installed in the battery mounting part S, the bottom wall F2 of the battery fixing part T2 and the bottom wall of the battery mounting part S are in contact, and the terminal 4A is embedded in the receiving groove 1A. When the bicycle is in use, the annular sealing ring Q can prevent rainwater and mud from entering the interface of the power input terminal 1B and the charging part of the battery module 4. A snap-fit ​​groove M1 is opened on one side wall of the battery mounting part S, and a latch N1 is pivotally connected to the other side wall. The power input terminal 1B transmits the power input from the battery module 4 to the drive unit 5 so that the drive unit 5 can operate.

[0022] The connecting rod assembly, consisting of the first connecting rod 2 and the second connecting rod 3, is attached to the base component 1. The functions of the first connecting rod 2 and the second connecting rod 3 can be understood by referring to existing technologies such as patent applications CN202310958199.8 and CN202322046737.4, and will not be elaborated further. Figure 5 The second link 3 includes a first housing 3A and a second housing 3B that are spliced ​​together. The drive device 5 is installed between the first housing 3A and the second housing 3B. After the electric derailleur is installed on the bicycle frame, the drive device 5 can drive the first link 2 and the second link 3 to move when it is working.

[0023] Combination Figure 9 The rechargeable battery module 4 includes a top shell T1 and a battery mounting part T2, with a circuit board disposed between them. The circuit board has a charging terminal 4A, a power output terminal 4B, and a charging indicator light 4C. The top shell T1 is generally rectangular, and its outer perimeter is slightly larger than that of the battery mounting part T2. The top surface F1 of the top shell T1 is flat, which prevents rainwater from accumulating on the battery module 4 after the electric derailleur is installed on the bicycle frame. Figure 8The top shell T1 has a locking engagement part N2 that cooperates with the locking buckle N1. The locking buckle N1 and the locking engagement part N2 cooperate to form a locking structure N. The battery fixing part T2 is generally flat and rectangular, and is adapted to the battery mounting part S. The battery module 4 is detachably mounted to the battery mounting part S through the battery fixing part T2, so that the power input terminal 1B and the power output terminal 4B are in contact. In this embodiment, the interface of the power output terminal 4B and the charging part are located on the same side of the battery fixing part T2, both located on the bottom side of the battery fixing part T2. The interface of the charging part of the battery module 4 is opened on the bottom side of the battery fixing part T2, specifically, on the wall surface F2 where the battery fixing part T2 and the battery mounting part S are joined. The terminal 4A of the charging part extends from the wall surface F2 and is embedded in the receiving groove 1A. The power output terminal 4B is arranged at the position of the battery fixing part T2, which corresponds to the position of the power input terminal 1B. Figure 8 In this embodiment, the battery fixing part T2 is provided with an annular protrusion 4D corresponding to the position of the aforementioned annular sealing ring Q. The annular protrusion 4D works in conjunction with the annular sealing ring Q to help improve the sealing effect. Figure 7 The outer periphery of the battery fixing part T2 is provided with a protruding block M2 that cooperates with the snap-fit ​​groove M1. The snap-fit ​​groove M1 and the protruding block M2 cooperate to form a snap-fit ​​structure M. Through the cooperation of the locking structure N and the snap-fit ​​structure M, the battery module 4 can be detachably installed on the base member 1. In this embodiment, the charging part of the battery module 4 is a TYPE C interface, but it can also be adjusted to other types of interfaces.

[0024] Compared to designs where the charging interface is exposed, the battery module 4 of the electric derailleur of this application has its charging interface located on the wall F2 where the battery fixing part T2 and the battery mounting part S meet. This design avoids exposing the charging interface, and after the electric derailleur is installed on the bicycle, rainwater and mud are less likely to enter the charging interface, which helps to prevent damage to the battery module 4.

[0025] The above describes the specific structure of an electric derailleur according to one embodiment of this application, but the implementation methods of this application are not limited to this. In another embodiment, the interface between the power output terminal 4B and the charging part can be located on different sides of the battery fixing part T2. For example, the power output terminal 4B is still located on the bottom side of the battery fixing part T2, while the interface of the charging part is opened on the side wall of the battery fixing part T2. Since the side wall surface of the battery fixing part T2 is also connected to the side wall surface of the battery mounting part S, this design method also helps to prevent rainwater and mud from entering the interface of the charging part compared to the exposed interface of the charging part.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A battery module for an electric derailleur, the electric derailleur comprising a battery mounting portion (S) having a power input terminal (1B), the battery module (4) comprising a battery fixing portion (T2) having a power output terminal (4B), the battery fixing portion (T2) being adapted to be detachably mounted to the battery mounting portion (S) such that the power input terminal (1B) and the power output terminal (4B) are in contact; characterized in that, The charging interface of the battery module (4) is located on the wall (F2) where the battery fixing part (T2) and the battery mounting part (S) are joined.

2. The battery module according to claim 1, characterized in that, The interface between the power output terminal (4B) and the charging unit is located on the same side of the battery fixing unit (T2).

3. The battery module according to claim 2, characterized in that, The terminal (4A) of the charging part extends from the wall surface (F2), and the wall surface where the battery mounting part (S) and the battery fixing part (T2) are joined is provided with a receiving groove (1A) for embedding the terminal (4A); an annular sealing ring (Q) is provided on the battery mounting part (S), and the power input terminal (1B) and the receiving groove (1A) are located on the inner circumference of the annular sealing ring (Q).

4. An electric derailleur, comprising: A base component (1) is provided with a battery mounting part (S), and the battery mounting part (S) is equipped with a power access terminal (1B); The linkage assembly is pivotally connected to the base member (1); The drive unit (5) is mounted on the linkage assembly; A rechargeable battery module (4) includes a battery fixing part (T2) configured with a power output terminal (4B), the battery fixing part (T2) being detachably mounted to the battery mounting part (S) so that the power input terminal (1B) and the power output terminal (4B) are in contact; Its features are, The charging interface of the battery module (4) is located on the wall (F2) where the battery fixing part (T2) and the battery mounting part (S) are joined.

5. The electric derailleur according to claim 4, characterized in that, The terminal (4A) of the charging part extends from the wall surface (F2), and the wall surface where the battery mounting part (S) and the battery fixing part (T2) are joined is provided with a receiving groove (1A) for embedding the terminal (4A).

6. The electric derailleur according to claim 4 or 5, characterized in that, The interface between the power output terminal (4B) and the charging unit is located on the same side of the battery fixing unit (T2).

7. The electric derailleur according to claim 5, characterized in that, The battery mounting part (S) is provided with an annular sealing ring (Q), and the power access terminal (1B) and the receiving groove (1A) are located on the inner circumference of the annular sealing ring (Q).

8. The electric derailleur according to claim 7, characterized in that, The battery fixing part (T2) is provided with an annular protrusion (4D) corresponding to the position of the annular sealing ring (Q).

9. The electric derailleur according to claim 4, characterized in that, The battery fixing part (T2) is generally in the shape of a flat cuboid, and the battery mounting part (S) is a matching flat cuboid groove.

10. The electric derailleur according to claim 4, characterized in that, The interface of the charging part is located on the bottom side of the battery fixing part (T2).

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