Electric power-assisted bicycle frame

Abstract

The invention discloses an electric power-assisted bicycle frame, and belongs to the technical field of electric power-assisted bicycles, the electric power-assisted bicycle frame comprises a frame body, the frame body comprises a front frame, a middle frame and a rear frame, a supporting assembly is mounted on the rear frame, a battery box mounting cavity is formed in the middle frame, a battery box is mounted in the mounting cavity, and an anti-theft assembly and a temperature control assembly are mounted on the mounting cavity. According to the electric power-assisted bicycle frame, the anti-theft assembly is arranged to prevent the battery from being stolen, the temperature control assembly is arranged to prevent the battery from being powered down quickly and exploding in a high-temperature environment, and the electric power-assisted bicycle frame is simple in overall structure and easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of electric assist bicycles, and particularly to an electric assist bicycle frame. Background Art

[0002] With the popularization of electric assist bicycles, people's requirements for the safety, performance and comfort of electric assist bicycles are getting higher and higher. In terms of safety, the battery, as the core component of an electric assist bicycle, the problem of its theft has always been the focus of users' attention, and traditional anti-theft measures often have poor effects. In terms of performance, the working temperature of the battery has an important impact on its performance and lifespan, and existing electric assist bicycles have deficiencies in temperature control and cannot effectively ensure that the battery works in a suitable temperature environment. In addition, the structural design of electric assist bicycles also needs to be continuously optimized to improve the stability and reliability of the vehicle. At the same time, reasonably utilizing energy and improving energy utilization efficiency are also important directions for the development of electric assist bicycles. Summary of the Invention

[0003] The purpose of the present invention is to provide an electric assist bicycle frame. By setting an anti-theft component to prevent the battery from being stolen, and by setting a temperature control component, it can prevent the battery from losing power quickly and from exploding in a high-temperature environment. The overall structure is simple and easy to operate.

[0004] To achieve the above purpose, the present invention provides an electric assist bicycle frame, including a frame body. The frame body includes a front frame, an intermediate frame and a rear frame. A support component is installed on the rear frame, a battery box installation cavity is provided on the intermediate frame, a battery box is installed in the installation cavity, and an anti-theft component and a temperature control component are installed on the installation cavity.

[0005] Preferably, the front frame is fixedly connected to the rear frame through the intermediate frame. The front frame, the rear frame and the intermediate frame are all made of titanium alloy material, and the front frame is connected with a front wheel, and the rear frame is connected with a rear wheel.

[0006] Preferably, both the front frame and the rear frame are hollow, and electric wires pass through them. A display screen is installed on the front frame, and the display screen shows the battery power and battery temperature. The installation cavity is located at the bottom of the intermediate frame.

[0007] Preferably, the anti-theft component and the temperature control component are independently set.

[0008] Preferably, the support component includes a support frame. The support frame is in an inverted U shape, and both ends of the support frame are welded to the rear frame.

[0009] Preferably, the anti-theft component includes a gravity sensor. The gravity sensor is arranged at the inner bottom end of the installation cavity. A locator is embedded on the battery box. Both the locator and the gravity sensor are electrically connected to the control system.

[0010] Preferably, the temperature control component includes a temperature sensor. The battery box is fixedly connected to the thermoelectric cooling and heating module, and the thermoelectric cooling and heating module is connected to the control system. Moreover, the thermoelectric cooling and heating module is respectively connected to the energy recovery component and the battery box through the control system, and the energy recovery component is connected to the shock absorption device.

[0011] Preferably, a ventilation opening is provided on the installation cavity, and a fan and a filter screen are installed at the ventilation opening. The fan is respectively connected to the energy recovery component and the battery box through the control system.

[0012] Preferably, the control system is connected to a buzzer and a display screen.

[0013] Preferably, one side of the installation cavity is hinged to the upper cover, and a lock is provided on the corresponding side of the installation cavity and the upper cover. The lock is an electric lock.

[0014] Therefore, by adopting the above-mentioned electric-assisted bicycle frame, the present invention has the following beneficial effects:

[0015] (1) Through the dual protection of the gravity sensor and the locator, the anti-theft component can timely detect the abnormal movement of the battery box and track its location, effectively preventing the battery box from being stolen. The setting of the electric lock also increases the security of the battery box.

[0016] (2) The temperature control component monitors the temperature of the battery box in real time through the temperature sensor and uses the thermoelectric cooling and heating module for adjustment to keep the battery working within a suitable temperature range, improving the performance and service life of the battery. The cooperation of the ventilation opening, the fan and the filter screen further improves the working environment of the battery box.

[0017] (3) The frame body is made of titanium alloy material, which has the advantages of high strength and light weight. The connection method of the front frame, the middle frame and the rear frame and the design of the hollow structure not only ensure the structural strength of the vehicle, but also facilitate the arrangement and management of wires.

[0018] Next, through the drawings and embodiments, the technical solution of the present invention will be further described in detail. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of an embodiment of an electric-assisted bicycle frame of the present invention;

[0020] Figure 2 is a top view of the installation cavity of an embodiment of an electric-assisted bicycle frame of the present invention;

[0021] Figure 3 is a cross-sectional view of the installation cavity of an embodiment of an electric-assisted bicycle frame of the present invention.

[0022] Reference Numerals

[0023] 1. Front frame; 2. Rear frame; 3. Intermediate frame; 4. Installation cavity; 5. Battery box; 6. Gravity sensor; 7. Temperature sensor; 8. Display screen; 9. Rear seat; 10. Support frame; 11. Semiconductor refrigeration and heating module; 12. Fan. Detailed implementation manners

[0024] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] Embodiment 1

[0027] As Figures 1 - 3 shown, the present invention provides an electric bicycle frame, including a frame body, and the frame body includes a front frame 1, an intermediate frame 3 and a rear frame 2. The front frame 1 is connected to the front wheel and is a key part for vehicle steering, used to control the driving direction of the vehicle. At the same time, the hollow structure can penetrate wires to supply power to the electronic devices of the vehicle, and a display screen 8 is installed to display important vehicle information, facilitating the user to understand the vehicle status in real time. The intermediate frame 3 connects the front frame 1 and the rear frame 2, plays a role of fixing and supporting, and is provided with an installation cavity 4 for the battery box 5 to install the battery box 5 to provide a power source for the vehicle. The rear frame 2 is connected to the rear wheel and is used to support the rear weight of the vehicle.

[0028] The front frame 1 and the rear frame 2 are fixedly connected through the intermediate frame 3. The front frame 1, the rear frame 2 and the intermediate frame 3 are all made of titanium alloy. The front frame 1 is connected with a front wheel, and the rear frame 2 is connected with a rear wheel. Both the front frame 1 and the rear frame 2 are hollow, and wires penetrate through them. A display screen 8 is installed on the front frame 1, and the power quantity and battery temperature are displayed on the display screen 8. The installation cavity 4 is located at the bottom of the middle frame.

[0029] The middle frame is provided with an installation cavity 4, in which a battery box 5 is installed. The installation cavity 4 is located at the bottom of the middle frame and is used to install the battery box 5, providing a fixed installation position for the battery, and protecting the safety and normal operation of the battery by setting an anti-theft component and a temperature control component.

[0030] The installation cavity 4 is hinged to one side of the upper cover, and a lock is provided on the corresponding side of the installation cavity 4 and the upper cover. The lock is an electric control lock, which is used to lock the upper cover of the installation cavity 4 to prevent the battery box 5 from being stolen or accidentally opened. Only through authorized operations (such as a remote control, etc.) can the electric control lock be opened. In addition to the electric control unlocking method, a backup mechanical unlocking method is also set, such as equipping an emergency key (using the unlocking method in the prior art to unlock). When the electric control lock fails or the battery runs out of power, the vehicle owner can use the emergency key to open the installation cavity 4.

[0031] Ventilation openings are provided on the installation cavity 4, which are used for air circulation to help regulate the temperature and humidity around the battery box 5. A blower 12 and a filter screen are installed at the ventilation openings. The blower 12 is respectively connected to the energy recovery component and the battery box 5 through a control system. The blower 12 can actively extract or discharge air as needed to enhance the air circulation effect and further improve the temperature control efficiency. The filter screen is used to filter dust, impurities, etc. in the air to prevent them from entering the installation cavity 4 and affecting the normal operation of the battery box 5 and other components.

[0032] An anti-theft component and a temperature control component are installed on the installation cavity 4. The anti-theft component and the temperature control component are independently set, and each component has a separate unified interface and installation method. When a certain component fails, the maintenance personnel can directly replace the entire component without having to conduct in-depth troubleshooting and repair of the complex system, shortening the maintenance time and difficulty.

[0033] The anti-theft component includes a gravity sensor 6, which is arranged at the inner bottom end of the installation cavity 4. A locator is embedded in the battery box 5, and both the locator and the gravity sensor 6 are electrically connected to the control system. The gravity sensor 6 is used to detect whether the battery box 5 is subjected to abnormal gravity changes, such as being lifted or moved. Once an abnormality is detected, a signal can be sent to the control system in a timely manner. The locator can real-time locate the position of the battery box 5, facilitating the vehicle owner to track its position when the battery box 5 is stolen. Cooperating with the gravity sensor 6, the anti-theft performance of the battery box 5 is improved.

[0034] The temperature control component includes a temperature sensor 7 which is used to monitor the temperature inside the battery box 5 in real time and provide temperature data for the temperature control system. The battery box 5 is fixedly connected to the semiconductor refrigeration and heating module 11. The semiconductor refrigeration and heating module 11 can cool or heat the battery box 5 according to the temperature data detected by the temperature sensor 7 under the control of the control system, so as to keep the temperature inside the battery box 5 within an appropriate range to ensure the performance and lifespan of the battery. When the difference between the ambient temperature and the appropriate temperature of the battery box 5 is small, natural ventilation or intermittent refrigeration and heating can be adopted to reduce energy consumption. The semiconductor refrigeration and heating module 11 is connected to the control system, and the semiconductor refrigeration and heating module 11 is respectively connected to the energy recovery component and the battery box 5 through the control system. The energy recovery component is connected to the shock absorption device. The energy recovery component can recover the energy generated by the shock absorption device during vehicle driving and supply it to the semiconductor refrigeration and heating module 11 through the control system to realize the reuse of energy and reduce energy consumption.

[0035] The control system is connected to the buzzer and the display screen 8. The control system can receive the signals of the gravity sensor 6 and the locator and make corresponding responses according to the signals, such as triggering the buzzer to alarm. When the anti-theft component detects an abnormal situation or other situations that need to alarm, the control system triggers the buzzer to emit an alarm sound to remind the user to pay attention.

[0036] A support component is installed on the rear frame 2. The support component includes a support frame 10 which is in an inverted U shape, and both ends of the support frame 10 are welded to the rear frame 2. A rear seat 9 is also welded on the rear frame 2. The support frame 10 is used to ensure the safety of the rear seat 9 personnel. Under normal circumstances, the rear seat 9 personnel usually hold the seat with their hands. Since there are shock absorption springs at the bottom of the seat, when the rear seat 9 personnel try to maintain balance, the shock absorption springs under the seat will cause harm to the rear seat 9 personnel. Therefore, the support frame 10 is set up to effectively protect the safety of the rear seat 9 personnel and keep balance.

[0037] When an electric-assisted bicycle frame provided by the present invention is in use, when an abnormal external force attempts to move the battery box 5, such as being lifted, the gravity value detected by the gravity sensor 6 will change. Once the gravity change exceeds the preset normal range, the gravity sensor 6 will transmit the signal to the control system. If the battery box 5 is stolen, the locator continuously sends position data, and the vehicle owner can view the real-time position of the battery box 5 at any time through the display screen 8 connected to the control system or other terminal devices, which is convenient for tracking and retrieving. After receiving the abnormal signal from the gravity sensor 6, the control system will immediately trigger the connected buzzer to emit an alarm sound and at the same time transmit the alarm information to the vehicle owner's electronic device to remind the vehicle owner that the battery box 5 may be stolen.

[0038] During the charging and discharging process, the battery box 5 generates heat, and the ambient temperature also affects the temperature of the battery box 5. The temperature sensor 7 can accurately capture these temperature changes. If the temperature is too high, the control system activates the refrigeration function of the semiconductor refrigeration and heating module 11, and the control system starts the fan 12. The fan 12 extracts the outside air, filters it through the filter screen, and then enters the installation cavity 4, taking away the heat and moisture around the battery box 5, and then discharging it from the ventilation opening, realizing the air circulation and heat dissipation and dehumidification. When the temperature and humidity of the battery box 5 return to normal, the control system stops the fan 12 to run to save electric energy. If the temperature is too low, the control system activates the heating function to raise the temperature of the battery box 5, so as to ensure that the battery always works in a suitable temperature environment and improve the battery performance and life.

[0039] Therefore, the present invention adopts the above-mentioned electric assist bicycle frame. By setting the anti-theft component to prevent the battery from being stolen, and by setting the temperature control component, it can prevent the battery from losing power quickly and the explosion in high-temperature environments. The overall structure is simple and easy to operate.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An e-bike frame, characterized in that: It includes a frame body, which consists of a front frame, an intermediate frame and a rear frame. A support component is installed on the rear frame, and a battery box installation cavity is provided on the intermediate frame. A battery box is installed in the installation cavity, and an anti-theft component and a temperature control component are installed on the installation cavity.

2. The electric assist bicycle frame according to claim 1, characterized in that: The front frame and the rear frame are fixedly connected through the intermediate frame. The front frame, the rear frame and the intermediate frame are all made of titanium alloy, and the front frame is connected with a front wheel, and the rear frame is connected with a rear wheel.

3. The frame of an electrically assisted bicycle according to claim 1, characterized in that: Both the front frame and the rear frame are hollow, and wires run through them. A display screen is installed on the front frame, and the power quantity and the battery temperature are displayed on the display screen. The installation cavity is located at the bottom of the intermediate frame.

4. The electric assist bicycle frame according to claim 1, wherein: The anti-theft component and the temperature control component are independently arranged.

5. The frame of an electrically assisted bicycle according to claim 1, characterized in that: The support component includes a support frame, which is in an inverted U shape, and both ends of the support frame are welded to the rear frame.

6. The frame of an electrically-assisted bicycle according to claim 1, characterized in that: The anti-theft component includes a gravity sensor, which is arranged at the inner bottom end of the installation cavity. A locator is embedded in the battery box, and both the locator and the gravity sensor are electrically connected to the control system.

7. The frame of an electrically assisted bicycle according to claim 6, characterized in that: The temperature control component includes a temperature sensor. The battery box is fixedly connected with a semiconductor refrigeration and heating module, and the semiconductor refrigeration and heating module is connected to the control system. Moreover, the semiconductor refrigeration and heating module is respectively connected to an energy recovery component and the battery box through the control system, and the energy recovery component is connected to a shock absorption device.

8. The frame of an electric-assisted bicycle according to claim 7, wherein: Ventilation openings are provided on the installation cavity, and a fan and a filter are installed at the ventilation openings. The fan is respectively connected to the energy recovery component and the battery box through the control system.

9. The frame of an electrically assisted bicycle according to claim 8, characterized in that: The control system is connected to a buzzer and the display screen.

10. The frame of an electric assist bicycle according to claim 1, characterized in that: One side of the installation cavity is hinged to an upper cover, and a lock is provided on the corresponding side of the installation cavity and the upper cover. The lock is an electric control lock.

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