CN220640149U - Power assembly, wheel and electric power-assisted bicycle - Google Patents

The utility model discloses a power assembly, a wheel and an electric power-assisted bicycle, which comprises a motor component, a battery pack and a wheel hub, wherein the wheel hub comprises a shell, a first cover plate and a second cover plate, the first cover plate and the second cover plate are connected with the shell, the shell and the first cover plate enclose a first cavity, the motor component is arranged in the first cavity, the output end of the motor component is in transmission connection with the shell, the shell and the second cover plate enclose a second cavity, and the battery pack is arranged in the second cavity. According to the utility model, the motor component and the battery pack are integrated into the hub, so that the battery pack is prevented from being arranged on the frame to influence the whole structure of the frame, meanwhile, the connection between the motor component and the battery pack is facilitated, the first cover plate and the shell enclose a first cavity for arranging the motor component, the output end of the motor component can drive the shell to rotate so as to ensure the normal running of the electric bicycle, the second cover plate and the shell enclose a second cavity for arranging the battery pack, and the battery pack and the motor component are separately arranged, so that the mutual influence is avoided while the connection is facilitated, and the working reliability of the power assembly is improved.

Power assembly, wheel and electric power-assisted bicycle

Technical Field

The utility model relates to the technical field of moped and peripheral supporting facilities thereof, in particular to a power assembly, wheels and an electric power-assisted bicycle.

Background

The battery is an electric power source of the electric power-assisted vehicle and is important to the performance of the electric power-assisted vehicle.

The batteries of the existing electric power-assisted bicycle are basically arranged on the frame, so that the frame is easy to be locally thick and heavy, and the integral structure of the frame is influenced. In addition, the battery pack is generally installed separately from the motor assembly, the structure is complex, the installation and wiring are complex, and inconvenience is brought to a rider.

Therefore, how to change the prior art, the battery of the electric power-assisted bicycle is mounted on the frame to affect the whole structure of the frame, and the current situation that the battery is connected with the motor is complex becomes a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The utility model aims to provide a power assembly, wheels and an electric power bicycle, so as to solve the problems in the prior art, avoid the influence of battery installation on the whole structure of a frame, and simplify the connection between a battery and a motor.

In order to achieve the above object, the present utility model provides the following solutions: the present utility model provides a powertrain comprising:

a motor assembly;

the battery pack is electrically connected with the motor assembly;

the electric bicycle comprises a bicycle frame, a hub, a battery pack, a motor assembly and a motor assembly, wherein the hub can be rotatably arranged on the bicycle frame of the electric bicycle frame, the hub comprises a shell, a first cover plate and a second cover plate, the first cover plate is connected with the shell, the shell and the first cover plate form a first cavity, the motor assembly is arranged in the first cavity, the output end of the motor assembly is connected with the shell in a transmission mode, the shell and the second cover plate form a second cavity, and the battery pack is arranged in the second cavity.

Preferably, the second cavity is annular, and the battery pack is disposed around the motor assembly.

Preferably, the motor assembly is electrically connected to the battery pack using a slip ring.

Preferably, the motor assembly is connected with a motor center shaft, and the motor center shaft can be connected with a frame of the electric power-assisted bicycle.

Preferably, the casing includes two coaxial tubular plates and curb plate that set up, the curb plate sets up in two one side of tubular plate, the group battery sets up in two between the tubular plate, the diameter is less the tubular plate with first cover board encloses into first cavity.

Preferably, the first cover plate is in bolted connection with the side plate, the second cover plate is annular, and the second cover plate is in bolted connection with the cylindrical plate with the larger diameter.

Preferably, a controller is further arranged in the second cavity, and the motor assembly and the battery pack are connected with the controller.

Preferably, the shell is further provided with a charging hole and a switch button hole.

The utility model also provides a wheel, which comprises the rubber tyre and the power assembly, wherein the rubber tyre is arranged outside the hub.

The utility model also provides an electric power-assisted bicycle which comprises the wheel.

Compared with the prior art, the utility model has the following technical effects:

the power assembly integrates the motor component and the battery pack into the hub, so that the battery pack is prevented from being arranged on the frame to affect the whole structure of the frame, and meanwhile, the connection between the motor component and the battery pack is facilitated, wherein the hub comprises a shell, a first cover plate and a second cover plate, the first cover plate and the shell enclose a first cavity for arranging the motor component, the output end of the motor component can drive the shell to rotate so as to ensure the normal running of the electric power bicycle, the second cover plate and the shell enclose a second cavity for placing the battery pack, and the battery pack and the motor component are separately placed, so that the connection is facilitated, the mutual influence is avoided, and the working reliability of the power assembly is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a powertrain according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a powertrain according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram illustrating a disassembled structure of a powertrain according to an embodiment of the present utility model.

Wherein, 1 is motor assembly, 2 is group battery, 3 is wheel hub, 4 is the casing, 5 is first apron, 6 is the second apron, 7 is the sliding ring, 8 is the motor axis, 9 is the tubular plate, 10 is the curb plate, 11 is the controller, 12 is the charging hole, 13 is switch button hole, 14 is the battery compartment.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a power assembly, wheels and an electric power bicycle, so as to solve the problems in the prior art, avoid the influence of battery installation on the whole structure of a frame, and simplify the connection between a battery and a motor.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

The utility model provides a power assembly, which comprises a motor component 1, a battery pack 2 and a hub 3, wherein the battery pack 2 is electrically connected with the motor component 1; the wheel hub 3 can rotate and set up on electric bicycle's frame, and wheel hub 3 includes casing 4 and the first apron 5 that links to each other with casing 4, second apron 6, and casing 4 encloses into first cavity with first apron 5, and motor assembly 1 sets up in first cavity, and motor assembly 1's output links to each other with casing 4 transmission, and casing 4 encloses into the second cavity with second apron 6, and group battery 2 sets up in the second cavity.

According to the power assembly, the motor component 1 and the battery pack 2 are integrated into the hub 3, the battery pack 2 is prevented from being arranged on the frame to affect the whole structure of the frame, meanwhile, connection of the motor component 1 and the battery pack 2 is facilitated, the hub 3 comprises the shell 4, the first cover plate 5 and the second cover plate 6, the first cover plate 5 and the shell 4 enclose a first cavity for arranging the motor component 1, the output end of the motor component 1 can drive the shell 4 to rotate so as to ensure normal running of the electric power bicycle, the second cover plate 6 and the shell 4 enclose a second cavity for placing the battery pack 2, and the battery pack 2 and the motor component 1 are placed separately, so that the connection is facilitated, the mutual influence is avoided, and the working reliability of the power assembly is improved.

In this concrete embodiment, the second cavity is cyclic annular, and group battery 2 sets up around motor assembly 1, in the practical application, can be with motor assembly 1 and the coaxial setting of wheel hub 3, is favorable to simplifying drive mechanism, improves transmission efficiency, and in addition, group battery 2 sets up around the motor group, can improve wheel hub 3's atress homogeneity, and then promotes electric bicycle's riding factor of safety.

The motor assembly 1 is electrically connected with the battery pack 2 by using the slip ring 7, and the slip ring 7 is used as a rotary electrical interface, so that the wiring problem between the fixed structure of the motor assembly 1 and the battery pack 2 rotating along with the hub 3 can be effectively solved, and smooth transmission of electric power is ensured. It should be explained that the motor assembly 1 includes a fixed structure, so that there is relative rotation between the fixed structure of the motor assembly 1 and the battery pack 2, and the slip ring 7 is used to realize electrical connection between the motor assembly 1 and the battery pack 2, thereby avoiding the influence of wiring redundancy on the rotation of the battery pack 2, ensuring smooth transmission of electric power, and the structure of the motor assembly 1 is common knowledge of those skilled in the art, and will not be described herein.

It should be further noted that the motor assembly 1 is connected with a motor center shaft 8, the motor center shaft 8 can be connected with a frame of an electric power-assisted bicycle, the motor center shaft 8 can be hinged with the frame of the electric power-assisted bicycle, and the motor center shaft 8 can be connected with a pedal plate to realize a power-assisted function; in addition, the motor center shaft 8 provides stable support for the motor assembly 1 at the same time, and ensures the normal operation of the motor assembly 1. In practical application, the slip ring 7 can be arranged on the motor center shaft 8, so that occupied space is reduced, and the integration degree of the power assembly is improved.

Specifically, casing 4 includes two coaxial tubular plates 9 and curb plate 10 that set up, and curb plate 10 sets up in one side of two tubular plates 9, and group battery 2 sets up between two tubular plates 9, and both sides set up curb plate 10 and second apron 6 respectively, play the effect of protecting group battery 2, and the less tubular plate 9 of diameter encloses into first cavity with first apron 5, and first cavity is open structure, and motor axis 8 sets up in the open one end of first cavity, makes things convenient for motor axis 8 and electric bicycle's frame to be connected, and first apron 5 and second apron 6 are located the both sides of casing 4 respectively.

In this embodiment, the first cover plate 5 is in bolted connection with the side plate 10, the second cover plate 6 is annular, the central shaft 8 of the motor can extend out from the hollow part of the second cover plate 6 and is connected with the frame, the second cover plate 6 is in bolted connection with the cylindrical plate 9 with a larger diameter, the connection is tight, the disassembly and assembly are convenient, and convenience is provided for the later maintenance of the power assembly. In addition, in practical application, in order to make things convenient for the installation location of group battery 2, can set up battery compartment 14 for fixed group battery 2 improves group battery 2's structural integrity, guarantees group battery 2's structural integrity, promotes electric bicycle's riding factor of safety simultaneously.

It should be further noted that the second cavity is further provided with a controller 11, the motor assembly 1 and the battery pack 2 are connected with the controller 11, and the controller 11 is internally provided with a main control board, a BMS board, a wireless remote control board and the like, so that the controllable degree of the power assembly is improved, and the whole circuit is simple and orderly. The controller 11, the main control board, the BMS board, and the wireless remote control board are all conventional means for those skilled in the art, and will not be described herein.

In order to facilitate the operation, the shell 4 is also provided with a charging hole 12 and a switch button hole 13, and a charging interface of the battery pack 2 is positioned at the charging hole 12, so that the charging operation is facilitated; in addition, the battery pack 2 is further provided with a switch button, and the switch button is positioned at the switch button hole 13, so that the switch operation is convenient. In practical application, sealing elements or shielding elements and the like can be arranged at the charging hole 12 and the switch button hole 13, so that dirt such as external dust and the like is prevented from entering the battery pack 2, and normal operation of power composition is prevented from being influenced.

Meanwhile, the utility model also provides a wheel, which comprises the rubber tyre and the power assembly, wherein the rubber tyre is arranged outside the wheel hub 3, the motor assembly 1, the battery pack 2 and the wheel hub 3 are integrated together, the problem that the battery is arranged on a frame to influence the whole structure of the frame in the prior art is avoided, and meanwhile, the connecting structure of the battery pack 2 and the motor assembly 1 can be simplified.

In addition, the utility model also provides an electric power-assisted bicycle, which comprises the wheel, and is beneficial to improving the performance of the electric power-assisted bicycle.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.