Automobile energy self-supply device

By installing a self-powered energy device on the roof of the car and generating electricity using the airflow, the problem of low energy efficiency in electric vehicles is solved, achieving higher energy efficiency and range, and reducing driving costs.

CN223989955UActive Publication Date: 2026-03-13张勇
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Electric vehicles have low energy efficiency during operation, resulting in high operating costs and poor range.

Method used

A self-powered energy device is installed on the roof of the car, which uses the airflow generated during the car's movement to drive the power generation components, including multiple generator sets and fan blades connected in series. The power output is optimized through rectification and transformation components, and a protection and monitoring system is provided to ensure safety and efficiency.

Benefits of technology

It improves energy efficiency, reduces operating costs, increases driving range, provides longer driving protection, and enhances the safety and reliability of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223989955U_ABST
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Abstract

The utility model discloses an energy self-supply device for an automobile, and aims to solve the problems of low energy utilization rate, high running cost and poor cruising ability of the automobile. The automobile energy self-supply device comprises a box assembly and a power generation assembly, the box assembly is arranged on the top of an automobile, and the power generation assembly is electrically connected with a storage battery of the automobile; a power generation cavity is formed in the box assembly, the power generation assembly is arranged in the power generation cavity, an air inlet is formed in one end of the box assembly, an air outlet is formed in the other end of the box assembly, and the air inlet and the air outlet are communicated through the power generation cavity. The power generation assembly comprises a plurality of generator sets, and each generator set comprises a generator, a rotating shaft and a plurality of fan blades. A self-energy-supply device is arranged on the top of the automobile, and driving airflow is used for driving a power generation assembly to generate power. According to the design, the energy self-supply function is achieved, the energy utilization rate is increased, the driving cost is reduced, the endurance mileage is increased, and longer driving guarantee is provided for a driver.
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Description

Technical Field

[0001] This utility model relates to the field of automotive self-powered energy technology, specifically to an automotive self-powered energy device. Background Technology

[0002] With increasing environmental awareness and growing concern about the problems caused by emissions from traditional gasoline-powered vehicles, the research and application of electric vehicles has become a crucial development direction for the automotive industry. Currently, the world is actively promoting the development of electric vehicles, investing heavily in technological research and development and infrastructure construction. Electric vehicles, with their advantages such as zero emissions and low noise, are gradually gaining favor with consumers. Supported by policies, automakers are increasing their R&D efforts in electric vehicles, launching numerous high-performance and stylish electric vehicle products. Meanwhile, the continuous improvement of charging infrastructure provides a strong guarantee for the widespread application of electric vehicles.

[0003] Currently, the vast majority of electric vehicles rely primarily on external energy supplies. During operation, these vehicles often exhibit low energy efficiency in the environment. This not only leads to relatively high operating costs but also results in limited driving range. Specifically, due to low energy efficiency, electric vehicles can only travel a relatively limited distance with the same energy input. Utility Model Content

[0004] The purpose of this invention is to provide a self-powered energy device for automobiles, aiming to solve the problems of low energy utilization, high operating costs, and poor range in automobiles.

[0005] To address the aforementioned problems, this utility model provides a self-powered vehicle energy device, comprising a housing assembly and a power generation assembly. The housing assembly is mounted on the top of the vehicle, and the power generation assembly is electrically connected to the vehicle's battery.

[0006] The housing assembly has a power generation chamber, the power generation component is disposed in the power generation chamber, one end of the housing assembly has an air inlet, the other end of the housing assembly has an air outlet, and the air inlet and the air outlet are connected through the power generation chamber.

[0007] The power generation component includes multiple generator sets, which are connected in series.

[0008] Each of the generator sets includes a generator, a shaft, and multiple fan blades. The generator is fixedly connected to the inner wall of the housing assembly, the shaft is connected to the output shaft of the generator, and the multiple fan blades are fixedly connected to the shaft.

[0009] Preferably, the housing assembly includes a bottom plate, side plates, and a top plate. The bottom plate is fixedly connected to the top of the vehicle. The bottom plate and the top plate are connected through the side plates. The side plates include front and rear side plates and left and right side plates. The left and right side plates are parallel to the sides of the vehicle, and the pivot is perpendicular to the left and right side plates.

[0010] Preferably, the generator set includes two generators arranged facing each other, the output shafts of the two generators are both connected to the rotating shaft, and the axes of the output shafts of the two generators are collinear with the axis of the rotating shaft.

[0011] Preferably, the generator set further includes a coupling, through which the output shaft of the generator is connected to the rotating shaft.

[0012] Preferably, the vehicle self-powered energy device further includes a rectifier assembly and a transformer assembly, wherein the generator is electrically connected to the rectifier assembly, and the rectifier assembly is electrically connected to the transformer assembly.

[0013] Preferably, the transformer assembly has multiple output ports, and each of the multiple output ports is equipped with a resettable fuse.

[0014] Preferably, the generator housing is connected to the enclosure assembly via a grounding wire.

[0015] Preferably, the vehicle self-powered energy device further includes a protective component, which includes an emergency stop button, a temperature and humidity sensor, and a wind speed sensor. The emergency stop button is located on the outside of the air inlet or the air outlet, the temperature and humidity sensor is located on the inside of the air inlet, and the wind speed sensor is located on the inside of the air inlet.

[0016] Preferably, the housing assembly further includes a rain shield connected to the top plate and located above the air inlet.

[0017] Preferably, the housing assembly further includes a first dustproof net and a second dustproof net, the first dustproof net being disposed on and covering the air inlet, and the second dustproof net being disposed on and covering the air outlet.

[0018] By installing a self-powered energy system on the roof of the car, the airflow generated during vehicle movement is used to drive a power generation module. This design enables the car to be self-powered, significantly improving energy efficiency. When a car adopts this self-powered energy method, it can effectively reduce operating costs. Simultaneously, it increases the car's driving range, providing drivers with longer-term driving assurance. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of a self-powered energy device for automobiles provided by this utility model;

[0020] Figure 2 This is a schematic diagram showing the disassembled structure of a self-powered energy device for automobiles.

[0021] Figure 3 yes Figure 2 A magnified schematic diagram of part A in the middle;

[0022] Figure 4 yes Figure 2 A magnified schematic diagram of part B in the middle.

[0023] Figure label:

[0024] 1. Housing assembly; 1a. Generator chamber; 1b. Air inlet; 1c. Air outlet;

[0025] 11. Base plate; 12. Side plate; 13. Top plate; 14. Rain guard; 15. First dustproof net; 16. Second dustproof net;

[0026] 2. Generating components; 21. Generator set; 211. Generator; 212. Shaft; 213. Fan blades; 214. Coupling;

[0027] 3. Protective components; 31. Emergency stop button; 32. Temperature and humidity sensor; 33. Wind speed sensor. Detailed Implementation

[0028] 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 and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0029] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0030] Combination Figures 1 to 4This utility model provides a self-powered vehicle energy device, including a housing assembly 1 and a power generation assembly 2. The housing assembly 1 is installed on the top of the vehicle, and the power generation assembly 2 is electrically connected to the vehicle's battery. A power generation chamber 1a is formed inside the housing assembly 1, and the power generation assembly 2 is installed inside the power generation chamber 1a. One end of the housing assembly 1 is provided with an air inlet 1b, and the other end of the housing assembly 1 is provided with an air outlet 1c. The air inlet 1b and the air outlet 1c are connected through the power generation chamber 1a. The power generation assembly 2 includes multiple generator sets 21, which are connected in series. Each generator set 21 includes a generator 211, a rotating shaft 212, and multiple fan blades 213. The generator 211 is fixedly connected to the inner wall of the housing assembly 1, the rotating shaft 212 is connected to the output shaft of the generator 211, and the multiple fan blades 213 are fixedly connected to the rotating shaft 212. Specifically, the housing assembly 1 is installed on the top of the vehicle, providing installation space for the power generation assembly 2. The air inlet 1b at one end of the housing assembly 1 allows external airflow to enter. After flowing in the power generation chamber 1a, the airflow is discharged from the air outlet 1c at the other end. The relative airflow generated when the vehicle is moving is used to guide the airflow through the power generation chamber 1a, protecting the power generation assembly 2 from the direct influence of the external environment. The power generation assembly 2 uses multiple generator sets 21 connected in series to convert the kinetic energy of the airflow into electrical energy, increasing the total power output. Each generator set 21 works collaboratively under the action of the airflow, accumulating the output electrical energy. Furthermore, when the vehicle is moving, the external airflow impacts the fan blades 213, causing the fan blades 213 to rotate. The generator set 21 transmits the mechanical energy generated by the rotation of the fan blades 213 through the shaft 212, and the generator 211 converts the mechanical energy into electrical energy.

[0031] It should be noted that the electrical energy generated by the power generation component 2 can directly provide kinetic energy to the vehicle, or the electrical energy generated by the power generation component 2 can be stored in a battery. The number and specific material of the fan blades 213 are not limited here, as long as they can be rotated by airflow. Preferably, three fan blades 213 are provided on each shaft 212. The fan blades 213 are made of carbon fiber composite material, which helps to reduce the weight of the fan blades 213, ensure the strength of the fan blades 213, and reduce energy loss. The fan blades 213 are fixedly connected to the shaft 212, and the three fan blades 213 are evenly arranged on the shaft 212, i.e., the included angle between the fan blades 213 is 120°. The specific number of generator sets 21 is also not limited; optionally, 30 generator sets 21 are used, laid flat and installed inside the housing component 1 along the airflow direction.

[0032] By installing a self-powered energy system on the roof of the car, the airflow generated during vehicle movement is fully utilized to drive the power generation component 2 to generate electricity. This design enables the car to be self-powered, greatly improving energy efficiency. When a car adopts this self-powered energy method, it can effectively reduce operating costs. At the same time, it also increases the car's driving range, providing drivers with longer driving assurance.

[0033] In a preferred embodiment, the housing assembly 1 includes a base plate 11, side plates 12, and a top plate 13. The base plate 11 is fixedly connected to the top of the vehicle, and the base plate 11 and the top plate 13 are connected by the side plates 12. The side plates 12 include front and rear side plates and left and right side plates. The left and right side plates are parallel to the sides of the vehicle, and the pivot 212 is perpendicular to the left and right side plates. The direction of the side plates 12 is described here with reference to the direction of vehicle travel. The air inlet 1b is formed on the front side plate, and the air outlet 1c is formed on the rear side plate. Specifically, the base plate 11 serves as the foundation of the entire housing assembly 1 and is securely installed on the top of the vehicle by bolts, welding, or other means. The left and right side plates are arranged parallel to the sides of the vehicle, meaning that the direction of the left and right side plates is the same as the direction of vehicle travel, which helps to guide the airflow smoothly through the power generation chamber 1a and reduce airflow turbulence and resistance. The top plate 13 cooperates with the side plates 12 to protect the power generation assembly 2 from the influence of the external environment, such as rain and dust. The rotating shaft 212 is positioned perpendicular to the left and right side plates, ensuring that the airflow direction is perpendicular to the shaft 212. This guarantees the effective blowing of the airflow onto the fan blades 213 during vehicle movement, improving the efficiency of the fan blades 213 in absorbing airflow energy. This design of the housing assembly 1 ensures the stability of the device installation, optimizes the airflow path, improves airflow utilization efficiency, provides a favorable working environment for the power generation assembly 2, and further enhances power generation efficiency.

[0034] In a preferred embodiment, the generator set 21 includes two generators 211 arranged facing each other. The output shafts of both generators 211 are connected to a rotating shaft 212, and the axes of the output shafts of both generators 211 are collinear with the axis of the rotating shaft 212. Specifically, the output shafts of the two generators 211 facing each other are oriented towards the inside of the housing assembly 1, while the output shafts of the two generators 211 are coaxial and collinear. With this arrangement, compared to a single generator 211, the combined operation of the two generators 211 increases the power generation, providing more electrical energy to the vehicle. When the rotating shaft 212 rotates, it simultaneously drives the rotors of both generators 211 to rotate, causing both generators 211 to generate electrical energy simultaneously. The output electrical energy is added together, thereby increasing the total power generation.

[0035] It should be noted that the specific connection method between the rotating shaft 212 and the generator 211 is not limited here. It can be directly fixedly connected to the output end of the generator 211. In a preferred embodiment, the output shaft of the generator 211 and the rotating shaft 212 are connected by a coupling 214. By setting the coupling 214, it is ensured that torque can be reliably transmitted between the output end of the generator 211 and the rotating shaft 212. At the same time, it can compensate for possible installation errors and axial and radial displacements between the rotating shaft 212 and the generator 211, improve the efficiency of energy transmission, reduce energy loss and equipment failure caused by unstable connection, and extend the service life of the generator 211 and the rotating shaft 212.

[0036] In a preferred embodiment, the vehicle's self-powered energy system further includes a rectifier assembly and a transformer assembly. The generator 211 is electrically connected to the rectifier assembly, which in turn is electrically connected to the transformer assembly. Specifically, the rectifier assembly rectifies the unstable DC power output from the generator 211, transforming it into a more stable DC power to meet the charging requirements of the vehicle's electrical equipment and battery. For example, by using rectifier elements such as diodes, the DC power output from the generator 211 is filtered and adjusted to remove fluctuations, resulting in a smoother output DC power. Optionally, a DC-AC inverter can be installed between the rectifier assembly and the transformer assembly to convert the DC power to AC power. The transformer assembly performs voltage transformation according to the voltage requirements of the vehicle's electrical equipment and battery, ensuring an appropriate output voltage. The inclusion of the rectifier assembly and transformer assembly allows the electrical energy generated by the generator 211 to better adapt to the vehicle's electrical system, improving the quality and availability of power, ensuring the normal operation of the vehicle's electrical equipment and the effective charging of the battery. Preferably, the transformer assembly has multiple output ports, each equipped with a resettable fuse. When an overload or short circuit occurs in the circuit, the circuit is automatically disconnected to protect the electrical equipment and the circuit safety; after the fault is cleared, it can automatically restore the conductive state. In optional cases, self-resetting fuses are typically composed of polymer and conductive particles. Under normal operation, their resistance is very low; when the current is too high, the generated heat causes the polymer to expand, increasing the spacing between the conductive particles and rapidly increasing the resistance, thus limiting the current; after the fault is cleared, the temperature drops, the polymer contracts, and the resistance returns to normal. This design allows for multiple output ports, facilitating the distribution and use of electrical energy and improving the applicability of the device. The self-resetting fuse enhances the safety and reliability of the circuit, reduces equipment damage and safety hazards caused by circuit faults, and avoids the hassle of frequent fuse replacements.

[0037] In a preferred embodiment, the casing of generator 211 is connected to the housing assembly 1 via a grounding wire. When leakage occurs in the casing of generator 211, the grounding wire conducts the current to the ground, making the potential of the casing the same as that of the ground, thus preventing electric shock accidents when personnel come into contact with it.

[0038] In one embodiment of this utility model, a three-phase full-bridge rectifier module (withstand voltage 600V, current 100A) is used to output smooth DC power. The rectified DC is converted to 220V AC by a DC-AC inverter. Through a multi-winding transformer, three ports are output: 5V (10A), 12V (20A), and 24V (30A). Each port is equipped with a resettable fuse (5V / 15A, 12V / 25A, 24V / 35A). All motor housings are connected to the enclosure assembly 1 by a 4mm gap. 2 The yellow-green wires are connected, and the grounding resistance is ≤4Ω to ensure the safety of automotive electrical use.

[0039] In a preferred embodiment, the vehicle's self-powered energy system further includes a protective component 3. This component 3 comprises an emergency stop button 31, a temperature and humidity sensor 32, and a wind speed sensor 33. The emergency stop button 31 is located outside the air inlet 1b or air outlet 1c, while the temperature and humidity sensor 32 and wind speed sensor 33 are located inside the air inlet 1b. In case of an emergency, such as equipment failure or abnormal power generation, the operator can quickly press the emergency stop button 31 to immediately stop the system and prevent further escalation of the accident. The temperature and humidity sensor 32 monitors the temperature and humidity inside the air inlet 1b in real time to detect changes in environmental conditions and their impact on the system's operation, allowing for timely intervention. The wind speed sensor 33 monitors the airflow speed inside the air inlet 1b to assess airflow intensity, providing data support for evaluating and controlling power generation efficiency. Furthermore, when the wind speed is less than a preset value, such as 10 m / s, the generator set 21's power output cannot meet the vehicle's driving power requirements, and the system switches to the battery to power the vehicle, ensuring the smoothness and continuity of the vehicle's operation. This design enhances the safety and reliability of the device. The emergency stop button 31 can quickly stop the device in an emergency, preventing accidents. The temperature and humidity sensor 32 and the wind speed sensor 33 can monitor environmental parameters in real time, helping to promptly identify potential problems and take corresponding measures for adjustment and maintenance, thus extending the device's service life. Placing the temperature and humidity sensor 32 and the wind speed sensor 33 inside the air inlet 1b ensures the accuracy of the detection results.

[0040] In a preferred embodiment, the housing assembly 1 further includes a rain shield 14, which is connected to the top plate 13 and is located above the air inlet 1b. Preferably, the rain shield 14 is installed at a downward angle above the air inlet 1b and is made of high-strength plastic to prevent rainwater from directly entering the air inlet 1b and thus preventing rainwater from entering the power generation chamber 1a and damaging the power generation assembly 2. This arrangement effectively protects the power generation assembly 2 from rainwater, improves the waterproof performance of the device, extends the service life of the device, and reduces equipment failures and damage caused by rainwater.

[0041] In a preferred embodiment, the housing assembly 1 further includes a first dust filter 15 and a second dust filter 16. The first dust filter 15 is disposed on and covers the air inlet 1b, and the second dust filter 16 is disposed on and covers the air outlet 1c. Preferably, the first dust filter 15 and the second dust filter 16 are made of stainless steel. The first dust filter 15 and the second dust filter 16 are detachably installed at the air inlet 1b and the air outlet 1c of the housing assembly 1, respectively, for easy regular cleaning and maintenance. By setting the first dust filter 15 and the second dust filter 16, dust and impurities in the air entering the power generation chamber 1a are filtered, ensuring the normal operation of the power generation assembly 2, reducing equipment wear and malfunctions caused by dust accumulation, and extending the maintenance cycle and service life of the device.

[0042] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A self-powered energy device for automobiles, characterized in that, The automobile self-energy supply device comprises a box assembly (1) and a power generation assembly (2), the box assembly (1) is arranged on the top of the automobile, and the power generation assembly (2) is electrically connected with the storage battery of the automobile. An electric power generation cavity (1a) is formed in the box assembly (1), the power generation assembly (2) is arranged in the electric power generation cavity (1a), one end of the box assembly (1) is provided with an air inlet (1b), the other end of the box assembly (1) is provided with an air outlet (1c), and the air inlet (1b) and the air outlet (1c) are communicated through the electric power generation cavity (1a). The power generation assembly (2) comprises a plurality of power generation units (21), and the plurality of power generation units (21) are arranged in series. Each power generation unit (21) comprises a power generator (211), a rotating shaft (212) and a plurality of fan blades (213), the power generator (211) is fixedly connected with the inner wall of the box assembly (1), the rotating shaft (212) is connected with the output shaft of the power generator (211), and the plurality of fan blades (213) are fixedly connected with the rotating shaft (212).

2. The automobile self-energy supply device according to claim 1, characterized in that, The box assembly (1) comprises a bottom plate (11), a side plate (12) and a top plate (13), the bottom plate (11) is fixedly connected with the top of the automobile, the bottom plate (11) and the top plate (13) are connected through the side plate (12), the side plate (12) comprises front and rear side plates and left and right side plates, the left and right side plates are parallel to the two sides of the automobile, and the rotating shaft (212) is arranged perpendicularly to the left and right side plates.

3. The automobile self-energy supply device according to claim 2, characterized in that, The power generation unit (21) comprises two power generators (211) arranged oppositely, the output shafts of the two power generators (211) are connected with the rotating shaft (212), and the axes of the output shafts of the two power generators (211) are arranged in the same line with the axis of the rotating shaft (212).

4. The automotive self-energy supply device of claim 3, wherein The power generation unit (21) further comprises a shaft coupling (214), and the output shafts of the power generators (211) are connected with the rotating shaft (212) through the shaft coupling (214).

5. The automotive self-power supply device of claim 4, wherein The automobile self-energy supply device further comprises a rectification assembly and a voltage transformation assembly, the power generators (211) are electrically connected with the rectification assembly, and the rectification assembly is electrically connected with the voltage transformation assembly.

6. The automotive self-energy supply device of claim 5, wherein The voltage transformation assembly is provided with a plurality of output ports, and the plurality of output ports are provided with self-recovery fuses.

7. The automotive self-energy supply device of claim 5, wherein The shell of the power generator (211) is connected with the box assembly (1) through grounding wires.

8. The automobile self-energy supply device according to claim 1, wherein The automobile self-energy supply device further comprises a protection assembly (3), the protection assembly (3) comprises an emergency stop button (31), a temperature and humidity sensor (32) and a wind speed sensor (33), the emergency stop button (31) is arranged outside the air inlet (1b) or the air outlet (1c), the temperature and humidity sensor (32) is arranged inside the air inlet (1b), and the wind speed sensor (33) is arranged inside the air inlet (1b).

9. The automotive self-energy supply device of claim 2, wherein The box assembly (1) further comprises a rain baffle (14), the rain baffle (14) is connected with the top plate (13), and the rain baffle (14) is located above the air inlet (1b).

10. The automotive self-energy supply device of claim 2, wherein The box assembly (1) further comprises a first dust screen (15) and a second dust screen (16), the first dust screen (15) is arranged on the air inlet (1b) and covers the air inlet (1b), and the second dust screen (16) is arranged on the air outlet (1c) and covers the air outlet (1c).