Battery module and power-assisted bicycle applying same

Abstract

The utility model discloses a battery module and a moped using the same, the battery module comprises a connecting piece and a battery assembly, the battery assembly is connected with a frame on the moped through the connecting piece, and the battery assembly is also connected with a power motor on the moped; when the power assisting device is used, the working state of the power assisting motor is controlled through the battery assembly, and power is supplied to the power assisting motor. When the battery assembly is used, the battery assembly is connected with the frame of the power-assisted bicycle through the connecting piece, the battery assembly can be conveniently replaced, charged and the like, the connecting stability of the battery assembly can be guaranteed through the connecting piece, and the battery assembly is prevented from being lost or damaged in the riding process.

Description

Technical Field

[0001] This utility model belongs to the field of electric bicycle technology, specifically relating to a battery module and an electric bicycle using the same. Background Technology

[0002] A power-assisted bicycle is a new type of transportation that integrates human-powered riding and motor assistance. It uses batteries as an auxiliary power source and is equipped with a motor and power assistance system. When the motor has power, it is driven by the power supply to assist riding. When the motor does not have power, the rider pedals to achieve human-powered riding, which can save manpower.

[0003] Existing electric bicycles fix the battery in the frame and other locations, making it impossible to remove and install the battery. This makes the battery replacement and charging process difficult and prevents the bicycle from maintaining good stability during riding. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a battery module that solves the problems of inconvenient disassembly and assembly of batteries in existing electric bicycles and poor battery stability during riding.

[0005] The purpose of this invention is also to provide a power-assisted bicycle that uses this battery module.

[0006] To achieve the above objectives, the first technical solution of this utility model is as follows: a battery module for an electric bicycle, comprising a connector and a battery assembly, wherein the battery assembly is connected to the frame of the electric bicycle via the connector, and the battery assembly is also connected to the electric motor of the electric bicycle; in use, the battery assembly controls the working state of the electric motor and supplies it with power.

[0007] Furthermore, the battery assembly includes a housing and a battery pack disposed within the housing, the housing being detachably connected to the connector, and the battery pack being connected to the assist motor.

[0008] Furthermore, the connector is provided with a guide groove, and the housing is provided with a guide block that mates with the guide groove; or the connector is provided with a guide block, and the housing is provided with a guide groove that mates with the guide block; when the connector is connected to the housing, the guide block is located in the guide groove.

[0009] Furthermore, the connector is provided with a locking protrusion, and the housing is provided with a locking groove that mates with the locking protrusion; or the connector is provided with a locking groove, and the housing is provided with a locking protrusion that mates with the locking groove; when the connector is connected to the housing, the locking protrusion is located in the locking groove.

[0010] Furthermore, the battery assembly also includes a battery mainboard and a motor controller disposed on the housing. The battery mainboard and the motor controller are both connected to the battery pack. The battery mainboard is also connected to the motor controller, and the motor controller is also connected to the assist motor.

[0011] Furthermore, the battery assembly also includes a remote control that is wirelessly connected to the battery motherboard.

[0012] Furthermore, the housing is provided with a charging base for charging the remote control, and the charging base is electrically connected to the battery pack.

[0013] Furthermore, the upper end of the shell has a conical structure.

[0014] Furthermore, the casing is also provided with a charging interface for connecting the battery pack.

[0015] The second technical solution of this utility model is implemented as follows: an electric bicycle, including the above-mentioned battery module, wherein the battery module is connected to the electric bicycle.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model connects the battery assembly to the frame of the electric bicycle through a connector, which facilitates the replacement and charging of the battery assembly. In addition, the connector can ensure the connection stability of the battery assembly and prevent it from being lost or damaged during riding. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the battery module described in this utility model;

[0018] Figure 2 This is the frame of the battery assembly in the battery module of this utility model;

[0019] Figure 3 This is an exploded view of the battery module described in this utility model.

[0020] In the diagram, 1-connector, 11-slot protrusion, 2-battery assembly, 21-housing, 211-slot, 22-battery pack, 23-battery motherboard, 24-motor controller, 25-remote controller, 26-charging base. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be clarified that the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are merely for the convenience of describing this utility model. They do not imply that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1

[0024] like Figure 1 , Figure 3 As shown, the battery module for an electric bicycle provided in this embodiment includes a connector 1 and a battery assembly 2. The battery assembly 2 is connected to the frame of the electric bicycle through the connector 1, and the battery assembly 2 is also connected to the electric motor on the electric bicycle. In use, the battery assembly 2 controls the working state of the electric motor and supplies it with power.

[0025] Based on the above structure, the battery module connects the battery assembly 2 to the frame of the electric bicycle through the connector 1, which facilitates the replacement and charging of the battery assembly 2. The connector 1 also ensures the connection stability of the battery assembly 2, preventing it from being lost or damaged during riding.

[0026] In some embodiments of this application, the battery assembly 2 includes a housing 21 and a battery pack 22 disposed within the housing 21. The housing 21 is detachably connected to the connector 1, and the battery pack 22 is connected to the power assist motor.

[0027] The detachable connection can be a magnetic, snap-fit, or threaded connection.

[0028] In some embodiments of this application, the connector 1 is provided with a guide groove, and the housing 21 is provided with a guide block that cooperates with the guide groove; or the connector 1 is provided with a guide block, and the housing 21 is provided with a guide groove that cooperates with the guide block; when the connector 1 is connected to the housing 21, the guide block is located in the guide groove.

[0029] In this embodiment, the housing 21 is removed from the connector 1 by moving the guide block along the guide groove, so as to replace or charge the battery pack 22 on the housing 21, or to connect the housing 21 to the connector 1 to facilitate power supply to the assist motor of the electric bicycle while riding.

[0030] In some embodiments of this application, the connector 1 is provided with a locking protrusion 11, and the housing 21 is provided with a locking groove 211 that mates with the locking protrusion 11; or the connector 1 is provided with a locking groove 211, and the housing 21 is provided with a locking protrusion 11 that mates with the locking groove 211; when the connector 1 is connected to the housing 21, the locking protrusion 11 is located in the locking groove 211.

[0031] In this embodiment, when the housing 21 is connected to the connector 1, the locking protrusion 11 is locked into the locking groove 211 to ensure the connection stability between the connector 1 and the housing 21, and to prevent the housing 21 from separating from the connector 1 during riding, which would result in the loss or damage of the battery assembly 2.

[0032] Preferably, this embodiment may also provide magnetic snaps on the connector 1 and the housing 21 to further improve the stability of the connection between the connector 1 and the housing 21.

[0033] like Figure 2 As shown, in some embodiments of this application, the battery assembly 2 further includes a battery main board 23 and a motor controller 24 disposed on the housing 21. The battery main board 23 and the motor controller 24 are both connected to the battery pack 22. The battery main board 23 is also connected to the motor controller 24, and the motor controller 24 is also connected to the assist motor.

[0034] In this embodiment, the battery pack 22 supplies power to the battery main board 23, the motor controller 24 and the assist motor. The battery main board 23 controls the working state of the assist motor through the motor controller 24.

[0035] The battery pack 22 is composed of several cylindrical cells. These cells are divided into several layers, and each layer of cells is tightly attached to the outer periphery and arranged in the cavity of the housing 21, which can reduce the overall volume of the battery module and save space.

[0036] In some embodiments of this application, the battery assembly 2 further includes a remote controller 25 that is wirelessly connected to the battery motherboard 23.

[0037] In this embodiment, the user inputs control commands through the remote control 25 to control the operating status, mode, and gear shifting of the power assist motor. The battery mainboard 23 processes the control commands and sends signals to the motor controller 24, thereby controlling the power assist motor to perform corresponding operations.

[0038] In some embodiments of this application, the housing 21 is provided with a charging base 26 for charging the remote controller 25, and the charging base 26 is electrically connected to the battery pack 22.

[0039] In this embodiment, the remote controller 25 can be detachably connected to the handlebars, allowing the user to control the power assist motor during riding; or the remote controller 25 can be detachably connected to the charging base 26, which is electrically connected to the battery pack 22 and also connected to the contacts of the remote controller 25 for charging.

[0040] In some embodiments of this application, the upper end of the housing 21 has a conical structure.

[0041] In this embodiment, as the shell 21 extends away from its lower end, its cross-sectional size gradually decreases, and the shell 21 has a smooth transition from the upper end to the lower end. Its structure is more aerodynamic and can reduce wind resistance and ensure riding speed during riding.

[0042] In some embodiments of this application, the housing 21 is further provided with a charging interface connected to the battery pack 22.

[0043] In this embodiment, the charging interface is provided with at least one, such as a USB interface, a Type-C interface, or other common interfaces, to facilitate charging the battery pack 22 with external devices or charging external devices with the battery pack 22.

[0044] Example 2

[0045] An electric bicycle, characterized in that it includes the battery module described in Embodiment 1, wherein the battery module is connected to the electric bicycle.

[0046] The specific method for using the electric bicycle provided in this embodiment is as follows:

[0047] When not riding, the housing 21 is removed from the connector 1, the battery pack 22 inside the housing 21 is charged, and the remote control 25 is placed on the charging base 26 to charge it. When riding, the guide block is moved along the guide groove to engage the locking protrusion 11 in the locking groove 211, achieving a stable connection between the housing 21 and the connector 1. The remote control 25 is then connected to the handlebars. The user inputs corresponding control commands by pressing the buttons on the remote control 25. After receiving the control commands, the battery mainboard 23 processes them and sends a signal to the motor controller 24, thereby controlling the power assist motor to perform corresponding operations.

[0048] The above description is merely a preferred 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 use in an electric bicycle, characterized in that, It includes a connector (1) and a battery assembly (2). The battery assembly (2) is connected to the frame of the electric bicycle via the connector (1). The battery assembly (2) is also connected to the electric motor on the electric bicycle. In use, the battery assembly (2) controls the working state of the electric motor and supplies it with power.

2. A battery module according to claim 1, characterized in that, The battery assembly (2) includes a housing (21) and a battery pack (22) disposed within the housing (21). The housing (21) is detachably connected to the connector (1), and the battery pack (22) is connected to the power assist motor.

3. A battery module according to claim 2, characterized in that, The connector (1) is provided with a guide groove, and the housing (21) is provided with a guide block that cooperates with the guide groove; or the connector (1) is provided with a guide block, and the housing (21) is provided with a guide groove that cooperates with the guide block; when the connector (1) is connected to the housing (21), the guide block is located in the guide groove.

4. A battery module according to claim 3, characterized in that, The connector (1) is provided with a locking protrusion (11), and the housing (21) is provided with a locking groove (211) that cooperates with the locking protrusion (11); or the connector (1) is provided with a locking groove (211), and the housing (21) is provided with a locking protrusion (11) that cooperates with the locking groove (211); when the connector (1) is connected to the housing (21), the locking protrusion (11) is located in the locking groove (211).

5. A battery module according to any one of claims 2-4, characterized in that, The battery assembly (2) also includes a battery motherboard (23) and a motor controller (24) disposed on the housing (21). The battery motherboard (23) and the motor controller (24) are both connected to the battery pack (22). The battery motherboard (23) is also connected to the motor controller (24), and the motor controller (24) is also connected to the assist motor.

6. A battery module according to claim 5, characterized in that, The battery assembly (2) also includes a remote controller (25) that is wirelessly connected to the battery motherboard (23).

7. A battery module according to claim 6, characterized in that, The housing (21) is provided with a charging base (26) for charging the remote control (25), and the charging base (26) is also electrically connected to the battery pack (22).

8. A battery module according to claim 7, characterized in that, The upper end of the shell (21) has a conical structure.

9. A battery module according to claim 5, characterized in that, The housing (21) is also provided with a charging interface that is connected to the battery pack (22).

10. A power-assisted bicycle, characterized in that, The battery module includes any one of claims 1-9, wherein the battery module is connected to the electric bicycle.

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