Range-extending electric bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to an extended-range electric bicycle which comprises a bicycle frame, a bicycle wheel, a bicycle wheel and a driving device. The main battery is arranged in the lower pipe and is used for supplying power for conventional riding; the auxiliary battery serves as a range extending assembly and prolongs the total driving distance of the electric bicycle; the hub motor is located on the rear wheel shaft and is used as a power source for electric driving; the controller is integrated on the handlebar and used for controlling start and stop of the hub motor and controlling switching between the main battery and the auxiliary battery; and the fixing seat is mounted on the outer side of the lower tube and used for fixing the auxiliary battery. Compared with the prior art, the electric bicycle has the advantages that through the innovative double-battery system design, namely the intelligent switching and cooperative working mode of the main battery and the auxiliary battery, the problem that the endurance mileage of a traditional electric bicycle is limited is effectively solved, the travel range of a user is greatly expanded, the long-distance riding requirement is met, and the user experience is improved. And the system is especially suitable for complex and changeable routes in outing exploration or daily commuting.

Description

Technical Field

[0001] The present application relates to the technical field of bicycles, and in particular to an extended-range electric bicycle. Background Art

[0002] As the concept of environmental protection is deeply rooted in people's minds and urban traffic congestion becomes increasingly severe, the market demand for electric bicycles, as the preferred mode of green travel, is showing a booming growth trend. Although traditional electric bicycles are sufficient for short-distance commuting in daily life, their limited range becomes the main bottleneck of user experience when traveling long distances or dealing with changing terrain.

[0003] In recent years, the rapid development of battery technology has indeed improved the energy storage level and energy density of a single battery, injecting new vitality into the electric vehicle industry. However, simply increasing the capacity of a single battery to extend the battery life is actually a trade-off dilemma: this not only directly increases the overall mass of the vehicle, affecting the economy of riding and the sensitivity of control, but also may ignore the core demands of users for light and efficient vehicles.

[0004] In this regard, the present application proposes an extended-range electric bicycle to solve this problem. Summary of the invention

[0005] The purpose of this application is to solve at least one of the technical deficiencies.

[0006] To this end, one purpose of the present application is to propose an extended-range electric bicycle to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0007] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present application provides an extended-range electric bicycle, comprising: a frame, composed of a down tube, a seat tube and a head tube; a main battery, built into the interior of the down tube, for supplying power for conventional riding; a secondary battery, as a range-extending component, for extending the total driving distance of the electric bicycle; a hub motor, located on the rear wheel axle, for providing a power source for electric drive; a controller, integrated on the handlebars, for controlling the start and stop of the hub motor, and also for controlling the switching between the main battery and the secondary battery; a fixing seat, installed on the outside of the down tube, for fixing the secondary battery.

[0008] Preferably, in any of the above schemes, two ends of the down tube are mounted on the outer walls of the seat tube and the head tube, and a detachable inspection panel is provided on the bottom surface thereof.

[0009] Preferably, any of the above solutions has the structure that the interior of the seat tube is a hollow structure, and has a height-adjustable seat post built in to meet the needs of riders of different heights.

[0010] Preferably, any of the above schemes has a hollow interior of the riser, a handlebar adjustment rod connected to the handlebar is installed inside the riser, and a front fork with integrated front shock absorber is installed at the bottom thereof for mounting the front wheel.

[0011] Preferably, any of the above schemes has a rear wheel fork fixedly provided at one end of the seat tube, one end of which is connected to the rear wheel axle for supporting and mounting the rear wheel; one end of the rear wheel fork is mounted on the seat tube, and a cargo rack is mounted on the rear wheel fork to provide additional cargo space for the rider.

[0012] Preferably, any of the above schemes is that a support ring is fixedly provided at one end of the fixing seat, and the main body is annular, which is used to provide support for one side of the auxiliary battery; a clamping member is fixedly provided at the other end of the fixing seat, and the main body is semi-annular, one end of which is fixedly provided with a buckle, and the other end is equipped with an arc-shaped clamping plate, and the arc-shaped clamping plate is made of a flexible material and is provided with a buckle groove that cooperates with the buckle to fix the auxiliary battery.

[0013] Preferably, in any of the above schemes, an adapter element is installed at one end of the lower tube, and a sealing cover plate is arranged on the outside of the adapter element.

[0014] Preferably, any of the above schemes is that one end of the secondary battery is provided with a power socket for accommodating the insertion of a power adapter cable; the power adapter cable is designed as a two-terminal structure, one end of which is connected to the power socket of the secondary battery, and the other end is connected to the adapter element.

[0015] Compared with the prior art, the advantages and beneficial effects of this application are:

[0016] 1. Through the dual battery system design, that is, the intelligent switching and collaborative working mode of the main battery and the auxiliary battery, the problem of limited range of traditional electric bicycles is effectively solved, which greatly expands the user's travel range and meets the needs of long-distance riding. It is especially suitable for outings, adventures or daily commuting in the face of complex and changeable routes.

[0017] 2. Through the flexible installation of the auxiliary battery, the overall endurance is improved without significantly increasing the total weight of the vehicle, maintaining the lightness and riding efficiency of the vehicle, and ensuring good handling flexibility and climbing performance.

[0018] 3. The coordinated design of the fixing seat and the auxiliary battery uses an annular support and a semi-annular clamp with a curved card plate made of flexible material to ensure the stable installation of the battery during driving and reduce the safety hazards caused by loose batteries. At the same time, the design of the downtube inspection plate facilitates maintenance and enhances the durability of the product.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of a first viewing angle according to an embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of a second viewing angle according to an embodiment of the present application;

[0023] Figure 3 A schematic diagram of a third viewing angle according to an embodiment of the present application;

[0024] Figure 4 It is a partial schematic diagram according to an embodiment of the present application;

[0025] Figure 5 According to the embodiment of the present application Figure 4 The enlarged schematic diagram at A in the middle;

[0026] Figure 6 This is a schematic diagram of controller connection according to an embodiment of the present application;

[0027] Figure 7 This is a schematic cross-sectional view of a lower tube according to an embodiment of the present application;

[0028] Figure 8 This is a schematic diagram of the installation of a secondary battery according to an embodiment of the present application;

[0029] Fig. 9 It is a schematic diagram of a fixing seat according to an embodiment of the present application.

[0030] In the figure: 1, frame, 101, down tube, 102, seat tube, 103, head tube, 104, adapter element, 105, sealing cover plate, 106, seat post, 107, handlebar, 108, front fork, 2, main battery, 3, auxiliary battery, 301, power adapter cable, 4, hub motor, 5, controller, 6, fixing seat, 601, support ring, 602, clamping piece, 603, buckle, 604, arc-shaped clamping plate. DETAILED DESCRIPTION

[0031] like Figures 1 to 9 As shown, an extended-range electric bicycle comprises: a frame 1, a main battery 2, a secondary battery 3, a hub motor 4, a controller 5 and a fixing seat 6.

[0032] Furthermore, the frame 1 is composed of a down tube 101, a seat tube 102 and a head tube 103;

[0033] The two ends of the down tube 101 are mounted on the outer walls of the seat tube 102 and the head tube 103, and a detachable inspection plate is provided on the bottom surface thereof to facilitate the inspection of the main battery 2;

[0034] An adapter element 104 is installed at one end of the lower tube 101, and a sealing cover plate 105 is configured on the outside. The sealing cover plate 105 is designed to cover and protect the adapter when not in use to prevent dust and water intrusion, thereby improving the durability and maintenance convenience of the entire assembly under different environmental conditions, extending the service life and ensuring electrical safety.

[0035] The interior of the seat tube 102 is a hollow structure, and a height-adjustable seat post 106 is built in, so that the height of the seat can be adjusted to meet the needs of riders of different heights;

[0036] The interior of the riser 102 is a hollow structure, and a handlebar adjustment rod connected to the handlebar 107 is installed inside the riser 102 to fine-tune the height of the handlebar 107 . A front fork 108 with integrated front shock absorption is installed at the bottom of the riser 102 for mounting the front wheel.

[0037] Furthermore, the main battery 2 is built into the lower tube 101 and is used as a power supply during normal riding;

[0038] Furthermore, the auxiliary battery 3 is arranged on the fixing seat 6 as a range-extending component, which prolongs the total driving distance of the electric bicycle, is easy to install and disassemble, and is convenient for users to adjust the configuration according to travel needs;

[0039] One end of the secondary battery 3 is provided with a power socket for receiving the insertion of a power adapter cable 301 .

[0040] Furthermore, the hub motor 4 is equipped on the rear wheel axle to directly drive the rear wheel to rotate, which simplifies the transmission system and reduces maintenance costs, while achieving instant response and efficient conversion of power output to ensure smooth and powerful riding.

[0041] Furthermore, the controller 5 is integrated on the handlebar 107, and integrates a user interface and an intelligent algorithm, which not only allows the rider to easily control the start and stop of the hub motor 4, but also realizes the intelligent switching function between the main battery 2 and the auxiliary battery 3, and automatically or manually adjusts the power supply according to the riding status and battery power, optimizes energy use, and extends the battery life.

[0042] Furthermore, the fixing seat 6 is mounted on the outer wall of the lower tube 101, and a support ring 601 is fixedly provided at one end of the fixing seat 6, and the main body is annular, so as to provide support for one side of the auxiliary battery 3;

[0043] A clamping member 602 is fixedly provided at the other end of the fixing seat 6. The main body is semi-circular, one end of which is fixedly provided with a buckle 603, and the other end is equipped with an arc-shaped card plate 604. The arc-shaped card plate 604 is made of a flexible material and has a buckle groove matched with the buckle 603 to fix the auxiliary battery 3.

[0044] The arc-shaped clamping plate 604 is made of a flexible material so that it can conform to the contour of the auxiliary battery 3 and provide adaptive fixation, ensuring good contact and stable installation under various force conditions.

[0045] Furthermore, the power adapter cable 301 is designed as a two-terminal structure, one end of which is connected to the power socket of the auxiliary battery 3, and the other end is connected to the adapter element 104, ensuring that the electric energy is smoothly transmitted from the auxiliary battery 3 to the required circuit system, thereby improving the flexibility and reliability of the system's energy supply.

[0046] The main battery 2 and the sub-battery 3 may have different capacities, charging speeds or weight characteristics to adapt to different riding requirements or charging environments.

[0047] An extended-range electric bicycle, the working principle is as follows:

[0048] 1); In daily use, the main battery 2 provides power to the hub motor 4, and the auxiliary battery 3 is used as a backup or range-extending power source. When the controller 5 detects that the main battery 2 reaches a threshold, the auxiliary battery 3 is switched to take over the power supply to extend the total mileage of the bicycle.

[0049] 2); When installing the secondary battery 3, first place the secondary battery 3 on the fixing seat 6, and support the bottom of the secondary battery 3 with the support ring 601, then buckle the buckle 603 with the buckle groove on the arc-shaped clamping plate 604 to complete the installation of the secondary battery 3, and then connect the two ends of the power adapter cable 301 to the secondary battery 3 and the adapter element 104 respectively, and the installation of the secondary battery 3 is completed.

Claims

1. An extended-range electric bicycle, characterized in that: include: The frame is composed of the down tube, seat tube and head tube; The main battery, built into the interior of the down tube, is used for power supply for regular riding; The secondary battery, as a range-extending component, extends the total driving distance of the electric bicycle; The hub motor is located on the rear wheel axle and is used as the power source for electric drive; The controller, integrated into the handlebar, is used to control the start and stop of the hub motor and also controls the switching between the main battery and the auxiliary battery; A fixing base, installed on the outside of the down tube, used to fix the auxiliary battery; A support ring is fixedly provided at one end of the fixing seat, and the main body is annular, and is used to provide support on one side of the auxiliary battery; A clamp is fixedly provided at the other end of the fixing seat. The main body is semi-circular, one end of which is fixedly provided with a buckle, and the other end is equipped with an arc-shaped clamping plate. The arc-shaped clamping plate is made of a flexible material and is provided with a buckle groove that cooperates with the buckle to fix the auxiliary battery.

2. The extended-range electric bicycle according to claim 1, characterized in that: The two ends of the down tube are mounted on the outer walls of the seat tube and the head tube, and a detachable inspection plate is provided on the bottom surface thereof.

3. The extended-range electric bicycle according to claim 1, characterized in that: The interior of the seat tube is a hollow structure, and is equipped with a height-adjustable seat post to meet the needs of riders of different heights.

4. The extended-range electric bicycle according to claim 1, characterized in that: The interior of the riser is a hollow structure, a handlebar adjustment rod connected to the handlebar is installed inside the riser, and a front fork with integrated front shock absorption is installed at the bottom of the riser for mounting the front wheel.

5. The extended-range electric bicycle according to claim 1, characterized in that: A rear wheel fork is fixedly provided at one end of the riser, and one end of the riser is connected to the rear wheel axle for supporting and mounting the rear wheel; One end of the rear wheel fork is mounted on the seat tube, and a cargo rack is mounted on the rear wheel fork to provide additional cargo space for the rider.

6. The extended-range electric bicycle according to claim 1, characterized in that: An adapter element is installed at one end of the lower tube, and a sealing cover plate is arranged on the outside of the lower tube.

7. The extended-range electric bicycle according to claim 6, characterized in that: One end of the secondary battery is provided with a power plug interface for receiving the insertion of a power adapter cable; The power adapter cable is designed as a two-terminal structure, one end of which is connected to the power socket of the secondary battery, and the other end is connected to the adapter element.

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