A vehicle nitrogen source temperature control hub integrated power generation driving device

Abstract

This invention discloses a vehicle nitrogen-source temperature-controlled wheel hub integrated power generation drive device, belonging to the field of vehicle wheel hub heat dissipation and kinetic energy utilization technology. This invention breaks through the design limitations of traditional passive wheel hub heat dissipation. Utilizing the low thermal conductivity and stable physicochemical properties of nitrogen, nitrogen is filled inside the tire, significantly reducing the conduction efficiency of tire friction heat and road surface radiation heat to the wheel hub from the heat source end. This effectively improves the high-temperature operating conditions of the wheel hub, delays tire aging, and reduces the risk of high-speed tire blowouts. Based on different vehicle models and wheel space structures, this invention sets up two types of permanent magnet synchronous electromagnetic components: vertical disc type and ring-shaped surround type. The stator coil is fixed to a stationary central main shaft, and the magnetic rotor component is locked at multiple points inside the wheel hub steel rim and rotates synchronously with the wheel. Kinetic energy recovery and power generation, as well as driving assistance functions, are achieved through the cutting of dynamic and static magnetic fields. The device is equipped with ventilation, drainage, and water-proof protection structures. The open wheel cavity structure of two-wheeled and three-wheeled vehicles is compatible with asynchronous motor assembly. The overall design is adaptable to various rubber tire vehicles, demonstrating strong practicality and adaptability.

Description

Technical Field

[0001] This invention relates to the fields of vehicle wheel hub heat dissipation and cooling, on-board kinetic energy recovery and power generation, and wheel auxiliary drive technology, specifically a vehicle nitrogen source temperature control wheel hub integrated power generation and drive device. Background Technology

[0002] Currently, vehicle wheel hub cooling modifications and onboard wheel power generation devices generally employ passive cooling methods such as adding cooling holes, cooling blades, and small fans inside the wheel hub. These methods can only dissipate the heat already generated and cannot control the temperature rise at the source of the heat. During vehicle operation, the continuous friction between the tires and the ground, as well as the heat radiation from the road surface in summer, generate a large amount of heat. This heat is continuously conducted inward to the inside of the wheel hub's steel rim. Prolonged high temperatures can easily cause the rubber tires to age and crack, greatly increasing the risk of tire blowouts at high speeds. At the same time, high-temperature environments also reduce the lifespan of electrical components inside the wheel hub.

[0003] Conventional wheel-mounted power generation devices only achieve kinetic energy conversion without considering wheel hub temperature control requirements. The internal space of wheel hubs varies between different front and rear wheels and different vehicle models, making existing structures unable to flexibly adapt to various installation conditions. Their structural versatility and overall performance are significantly insufficient. Currently, there is no integrated solution combining nitrogen source thermal insulation and temperature control technology with wheel hub dynamic and static electromagnetic power generation and auxiliary drive structures, leaving a significant gap in the industry's technical solutions. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a vehicle nitrogen source temperature control wheel hub integrated power generation drive device. It uses nitrogen insulation as the core heat dissipation breakthrough point to effectively reduce heat transfer efficiency from the heat source. On this basis, it integrates two forms of permanent magnet synchronous power generation drive structure to adapt to the wheel structure of different vehicle models and simultaneously achieve heat dissipation protection and kinetic energy utilization.

[0005] This device uses the inert and low thermal conductivity of nitrogen as the foundation of the heat dissipation system. Nitrogen is filled inside the rubber tires of the vehicle. Relying on the characteristics of nitrogen's poor thermal conductivity and strong thermal stability, it significantly reduces the efficiency of frictional heat and road surface radiation heat conduction inward, thereby reducing heat accumulation in the wheel hub from the source and lowering the probability of high temperature failure of the wheel body.

[0006] Based on the differences in the internal space of vehicle wheel hubs, this invention sets up two permanent magnet synchronous electromagnetic arrangement structures: a vertical disc type and a ring-shaped surround type. The central main shaft is a fixed base, and the stator coil is stably mounted on the main shaft through a bracket, remaining stationary throughout the entire operation; the magnetically conductive rotor component is fixed to the inner side of the wheel hub steel rim by a multi-point uniform locking method, rotating synchronously with the wheel. The relative movement of the moving and stationary components cuts the magnetic field, completing the conversion of kinetic energy into electrical energy, while also providing auxiliary driving force for driving.

[0007] The front wheel cavity of two-wheeled and three-wheeled vehicles is open and unobstructed, with ample space. The vertical structure is compatible with both permanent magnet synchronous motors and asynchronous motors. For small single-brake disc wheels and dual-wheel rear wheels, the outer drive shaft area can be equipped with the appropriate structure according to the actual space. The rear wheel installation area avoids the inner braking components and utilizes the remaining space on the outside to arrange the components.

[0008] The wheel hub cavity adopts a semi-enclosed ventilation structure, with ventilation gaps reserved at component assembly points. It is equipped with partitioned heat dissipation holes and swirling water drainage channels to form a circulating air duct. It is equipped with water-blocking baffles of different materials to prevent rainwater and car wash water from entering the interior and damaging the coils, thus balancing ventilation, heat dissipation, and waterproof protection. When the wheel hub is made of non-magnetic aluminum, an additional annular magnetic steel channel is installed to ensure the electromagnetic working effect. Detailed Implementation

[0009] Example 1: Vertical disc structure (front wheel of two-wheeled and three-wheeled vehicles, front wheel of electric vehicles) This embodiment is suitable for the front wheel working conditions of two-wheeled, three-wheeled vehicles and electric vehicles. There are no extra parts obstructing the interior of the front wheel hub, and the cavity space is sufficient, providing good conditions for device assembly.

[0010] The vertical stator coil (4) is fixedly installed on the central fixed main shaft (1) and remains stationary during operation. The disc magnetic steel plate (5) is locked and fixed at three to six evenly spaced points on the inner edge of the wheel hub steel ring (2). A ventilation gap (7) is left between the disc magnetic steel plate (5) and the inner wall of the wheel hub steel ring (2) to provide a flow channel for heat dissipation airflow. Most electric two-wheeled vehicles on the market adopt an external disc brake structure for the front wheel. There are no internal components to block it, so it can be directly adapted to this vertical structure assembly. The stator only needs to be firmly installed on the front fork fixed shaft. The installation is convenient and does not require major modifications to the original vehicle structure.

[0011] The lower part of the disc magnetic steel plate (5) is not perforated to ensure the integrity of the magnetic structure and the efficiency of magnetic field transmission; the upper part is densely perforated with heat dissipation holes (6) to quickly dissipate the heat generated by the coil. A plastic protective cover is installed on the outside of the wheel. The plastic protective cover (8) is machined with a swirling downward drainage and ventilation groove near the wheel edge. External airflow can enter the cavity through the groove for heat exchange, and the water in the cavity will slide down the groove naturally to be discharged, taking into account both heat dissipation and waterproof performance. Under this spatial condition, a permanent magnet synchronous motor or an asynchronous motor can be installed as needed. When the wheel rotates, it drives the disc magnetic steel plate (5) to rotate synchronously, and cooperates with the stationary vertical stator coil (4) to complete the power generation drive operation. At the same time, nitrogen is filled into the tire (3). Nitrogen has low thermal conductivity, which can significantly reduce the heat entering the wheel cavity from the source and improve the overall temperature control effect of the device.

[0012] Example 2: Vertical disc structure (small single-wheel brake disc wheel) This embodiment is adapted to the working condition of small single-wheel brake disc wheels. The wheel is a single-wheel structure, the brake disc is arranged on the side, and the vertical disc assembly is installed based on the central fixed main shaft (1). The overall structure is compact and lightweight, which is suitable for the space requirements of small commuter vehicles.

[0013] The vertical stator coil (4) is fixed on the central fixed main shaft (1) and remains stationary during operation. The disc magnetic steel plate (5) is fixed at multiple points on the inner side of the wheel hub steel ring (2), ensuring a stable installation without taking up extra space. The original vehicle decorative cover on the outer side generally has a hollow design, which can be used directly as a ventilation structure. It works in conjunction with the heat dissipation holes (6) on the disc magnetic steel plate (5) to form a complete heat dissipation channel, effectively dissipating the heat generated by the device. Nitrogen is filled into the tire to achieve temperature control at the source, meeting the heat dissipation and kinetic energy usage needs of daily commuting vehicles, taking into account both practicality and economy.

[0014] Example 3: Circular Wrap-around Structure (Rear Wheel of Two-Wheel Vehicles, Wheels of SUVs and Pickup Trucks) This embodiment is adapted to the working conditions of the rear wheels of two-wheeled vehicles, SUVs, and pickup trucks. The braking structure is arranged on the inner side of the rear wheel. The device components are installed in the outer drive shaft area of ​​the two wheels. The width of this area varies from 5 to 15 centimeters depending on the vehicle model, making it highly adaptable.

[0015] The annular stator coil (10) is mounted on the outer circumference of the stationary central fixed spindle (1) via a fixed bracket (9), ensuring a stable installation without affecting the operation of the braking components. Most SUVs and pickup trucks on the market use non-magnetic aluminum alloy wheels with annular magnetic steel grooves (11) installed on the inner side of the wheel rim. The annular magnetic steel grooves (11) can be fixed using the original vehicle bolt holes with a six-point uniform locking method, without requiring additional damage to the original vehicle structure. The installation is convenient and highly reliable. A ventilation and heat dissipation gap (12) is reserved between the annular magnetic steel grooves (11) and the wheel rim to provide a flow channel for internal heat dissipation.

[0016] When the wheel rotates, the annular magnetic guide steel groove (11) rotates synchronously with the wheel, forming a magnetic field cutting with the fixed annular stator coil (10). It operates in permanent magnet synchronous mode, resulting in high power generation and driving efficiency. The outer original vehicle protective cover has ventilation channels, which work in conjunction with the internal ventilation and heat dissipation holes (12) to achieve efficient heat dissipation inside the device. At the same time, it is equipped with a water-blocking protective baffle (13) to effectively prevent rainwater and mud from entering the device and avoid damage to the components due to moisture. The tire is filled with nitrogen. By utilizing the heat insulation properties of nitrogen, the stability of the rear wheel under long-term high-temperature conditions is ensured, improving the durability and reliability of the device. Attached Figure Description

[0017] Figure 1 (Abstract Figure) is a top view of the vertical disc structure of the vehicle nitrogen source temperature control hub integrated power generation drive device according to the present invention. It clearly shows the core basic implementation structure of the device. As the first figure in the specification, it intuitively presents the radial distribution, assembly relationship and overall layout of the key components inside the hub, which can reflect the integrated design features of the device and the spatial relationship of each component. Explanation of reference numerals in the attached figures

[0018] 1— Central fixed spindle; 2— Wheel hub steel rim; 3— Tire outer rim outline; 4— Vertical stator coil; 5— Circular magnetic conductive steel plate; 6— Heat dissipation hole; 7— Ventilation gap; 8— Outer protective cover outline; 9— Fixed bracket; 10— Annular stator coil; 11— Annular magnetic conductive steel groove; 12— Ventilation and heat dissipation hole; 13— Water-blocking protective baffle. Features

[0019] 1. The heat dissipation design concept of this invention is original. Taking the low thermal conductivity of nitrogen as the core entry point, it is different from the traditional passive heat dissipation mode inside the wheel hub. It significantly reduces the heat conduction efficiency from the heat source of the tire, effectively reduces the overall working temperature of the wheel hub, slows down the tire aging speed, reduces the safety hazards of high-speed tire blowout, and improves vehicle driving safety.

[0020] 2. The structure has a wide range of adaptability, with two types of electromagnetic working structures: vertical disc type and ring-shaped surround type. It can match the different working conditions of the front and rear wheels of two-wheeled vehicles, three-wheeled vehicles, four-wheeled vehicles, small passenger cars, electric vehicles, freight vehicles and off-road vehicles. It has high installation flexibility and strong modification versatility.

[0021] 3. The dynamic and static structure layout is reasonable and standardized. The stator components rely on the fixed main shaft to maintain a stationary state, while the rotor magnetic components rotate synchronously with the wheels. The magnetic field cutting operation is stable, which can smoothly realize the dual functions of kinetic energy recovery and power generation and vehicle auxiliary drive, making reasonable use of the kinetic energy resources during vehicle operation.

[0022] 4. The ventilation and waterproof protection design is tailored to the actual vehicle operating conditions. By reserving assembly gaps, partitioned heat dissipation holes, swirling water drainage channels, and protective baffles of different materials, it can effectively prevent external moisture from entering the cavity while ensuring air circulation and heat dissipation, and reliably protect the electrical components for long-term stable operation.

[0023] 5. The overall modification relies on the original vehicle's hole structure for assembly, without the need for major changes to the original vehicle structure. The components are connected firmly and have reserved deformation buffer space, making it less prone to jamming during operation. It takes into account the convenience of modification, structural stability and long-term durability.

Claims

1. A vehicle nitrogen source temperature control hub integrated power generation drive device, comprising a wheel tire, a wheel hub rim, a centrally fixed main shaft, and an electromagnetic power generation drive assembly, characterized in that: The tire is filled with nitrogen to block the conduction of frictional heat and road surface radiation heat to the wheel hub from the source; the electromagnetic power generation drive component is a permanent magnet synchronous type, which is divided into two types of layout structure: vertical disc type and ring-shaped type; the stator part of the electromagnetic component is fixed on the stationary central main shaft, and the magnetic rotor component is locked at multiple points on the inner side of the wheel hub steel rim and rotates synchronously with the wheel. Kinetic energy generation and driving assistance are realized through the relative cutting of dynamic and static magnetic fields.

2. The temperature-controlled hub-integrated power generation and drive device of claim 1, wherein: The vertical disc structure includes a disc-shaped stator coil and a disc-shaped magnetic steel plate. The disc-shaped stator coil is fixedly assembled on the outer edge of the central main shaft and remains stationary. The disc-shaped magnetic steel plate is locked and fixed to the inner edge of the hub at three, four, or six evenly spaced points. A ventilation gap is reserved between the disc-shaped magnetic steel plate and the inner wall of the hub.

3. The temperature-controlled hub-integrated power generation and drive device of claim 2, wherein: The disc-shaped magnetic steel plate adopts a partitioned perforation design. The lower middle area of ​​the plate is completely preserved to ensure the overall magnetic conductivity, while the upper middle area has densely packed heat dissipation channels. The outer side of the wheel is equipped with a plastic protective cover, and a swirling drainage and ventilation groove is set near the wheel edge of the plastic protective cover.

4. The temperature controlled hub integrated power generation drive of claim 1, wherein: The annular surrounding structure includes an annular stator coil and an annular magnetic steel groove. The annular stator coil is mounted on the outer circumference of the central main shaft by a fixed bracket and remains stationary. When the hub is made of non-magnetic material, an annular magnetic steel groove is added to the inner side of the wheel rim. The annular magnetic steel groove is fixed by a multi-point locking method, and a ventilation and heat dissipation gap is reserved between the annular magnetic steel groove and the hub.

5. The temperature controlled hub integrated power generation drive of claim 1, wherein: The device is suitable for the installation conditions of the front and rear wheels of vehicles. The front wheel cavity of two-wheeled and three-wheeled vehicles has sufficient space and can be assembled with a vertical disc structure. The rear wheel of two-wheeled vehicles uses the outer drive shaft area to arrange components, avoiding interference from the inner braking component structure.

6. The vehicle nitrogen source temperature control hub integrated power generation drive device according to claim 1, characterized in that: The device is equipped with waterproof protective components adapted to different working conditions. Small vehicles are equipped with rubber water-blocking baffles, while high-temperature heavy-duty vehicles are equipped with iron water-blocking baffles. The ventilation structure and the water-blocking structure work together to form a labyrinthine airflow channel.

7. The vehicle nitrogen source temperature control hub integrated power generation drive device according to claim 1, characterized in that: The vertical mounting area inside the spacious wheel cavity of the two-wheeled and three-wheeled vehicle can be adapted to both permanent magnet synchronous motors and asynchronous motors according to actual usage requirements.

8. Any technical solution that makes conventional modifications, equivalent replacements, and adaptive adjustments to the size, installation layout, and shape of components based on the core principle of nitrogen source temperature control and dynamic-static coordination wheel hub electromagnetic power generation drive of this invention, and integrates power generation drive in the front and rear wheel hubs of vehicles respectively, falls within the protection scope of this invention.

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