Tire compression power generation device and vehicle

Abstract

The utility model relates to the field of power generation, in particular to a tire compression power generation device which comprises a tire coaxially fixed on an outer ring of a hub, a stator assembly and a rotor assembly which are used for induction power generation are installed in a tire cavity of the tire, and the rotor assembly is arranged on an outer ring of the stator assembly and is in coaxial rotation fit with the stator assembly. Air drums are evenly arranged on the outer ring of an inner cavity of the tire in the circumferential direction, air is stored in the air drums, the air drums are elastic, the fixing ring is matched with the tire to clamp and fix the air drums, one-way air inlet valves and one-way exhaust valves are arranged on the air drums, and after the air drums are pressed, the one-way exhaust valves conduct exhaust propelling action on rotor blades on the outer ring of the rotor assembly. And the rotor assembly is driven to coaxially rotate relative to the stator assembly and generate electricity through electromagnetic induction. On the premise that the capacity of the battery pack of the new energy automobile is fixed, the cruising ability of the automobile is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of power generation, in particular to a tire pressure power generation device and a vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] Due to the capacity limitation of new energy vehicle battery packs, the endurance of new energy vehicles after being fully charged is still insufficient compared to traditional gasoline vehicles. To eliminate the endurance anxiety of new energy vehicles, the current traditional solution is to continuously increase the installation density of public charging piles, or as described in patent number "CN220562582U", replace the entire battery pack of the car when passing through the battery swap station to quickly improve the endurance. However, when the capacity of the new energy battery pack is fixed, how to improve the endurance of new energy vehicles has always been an urgent problem to be solved. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a tire pressure power generation device and a vehicle. The utility model greatly improves the endurance of the vehicle under the premise that the battery pack capacity of the new energy vehicle is fixed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tire pressure power generation device includes a tire coaxially fixed to the outer ring of a wheel hub, a stator assembly and a rotor assembly for inductive power generation are installed in the tire cavity of the tire, the rotor assembly is arranged on the outer ring of the stator assembly and cooperates with the stator assembly to rotate coaxially, air drums are evenly arranged along the circumference of the outer ring of the inner cavity of the tire, each air drum stores air inside and has elasticity, a fixing ring cooperates with the tire to clamp and fix each air drum, a one-way air intake valve and a one-way exhaust valve are provided on the air drum, and when the air drum is pressurized, the one-way exhaust valve generates an exhaust propulsion action on the rotor blades to drive the rotor assembly to rotate coaxially relative to the stator assembly and generate electromagnetic induction power.

[0007] As a further solution of the utility model: the outer ring of the rotor assembly is evenly arranged with rotor blades along the circumferential direction, with the tire rotation direction as the front, each rotor blade is arranged tilted forward, and the exhaust port of the one-way exhaust valve faces the surface of the rotor blade.

[0008] As a further solution of the utility model: the air inlet of the one-way air inlet valve and the air outlet of the one-way air exhaust valve are both connected to the tire cavity of the tire to maintain tire pressure balance.

[0009] As a further solution of the utility model: the stator assembly is fixed on the wheel hub, and the wheel hub and the rotor assembly are rotatably matched through the bearing. Positioning grooves are provided on the wheel hub and the rotor assembly, so that they are respectively clamped and fixed with the inner ring and outer ring of the bearing.

[0010] As a further solution of the utility model: the width of each air drum is equal to the width of the tire, and the air drum is connected and fixed to the tread and / or the fixing ring of the tire.

[0011] As a further solution of the present invention: the stator assembly, the rotor assembly, the bearing and the fixing ring are all half-structured.

[0012] As a further solution of the utility model: the one-way exhaust valve and the one-way intake valve on the air drum are staggered in the axial direction of the tire.

[0013] A vehicle comprises the tire pressure power generation device.

[0014] As a further solution of the utility model: the vehicle is a new energy vehicle, and the electric energy generated by the tire pressure power generation device is used to charge the battery pack of the vehicle.

[0015] As a further solution of the utility model: a battery is installed in the vehicle to store the electric energy generated by the tire pressure generator.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model places a rotor assembly and a stator assembly inside a tire, and utilizes the deformation of the tire during travel to squeeze the air in the tire to exhaust the gas. The exhaust of the air in the tire drives the rotor blades on the rotor assembly to rotate relative to the stator assembly, thereby generating electricity through electromagnetic induction. During the driving process of the vehicle, the vehicle's own power is not consumed, and electricity is generated through the deformation of the tire to continuously charge the battery pack of the vehicle, thereby greatly improving the vehicle's endurance.

[0018] 2. The utility model arranges the rotor blades on the rotor assembly at an angle so that the exhaust of the one-way exhaust valve faces the rotor blades, thereby improving the utilization rate of the exhaust energy of the one-way exhaust valve; during the power generation process, since the air intake and exhaust of the air drum are connected to the tire cavity, the tire cavity is always in a tire pressure balance state.

[0019] 3. The air drum of the utility model corresponds to the width of the tire and is clamped and fixed by the fixing ring and the tire, ensuring that the air drum at the bottom can always be squeezed and exhausted during driving, thereby continuously generating electricity; the split design of the stator assembly, rotor assembly, and bearing is easy to disassemble and install.

[0020] 4. The one-way intake valve and the one-way exhaust valve of the utility model are staggered along the axial position of the tire to avoid interference between the intake airflow and the exhaust airflow, avoid turbulence, and maximize the exhaust propulsion efficiency of the exhaust valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the structure of the rotor blades in the utility model.

[0023] In the figure:

[0024] 1. Tire; 2. Wheel hub; 3. Air drum;

[0025] 31. One-way air inlet valve; 32. One-way air exhaust valve; 33. Retaining ring;

[0026] 4. stator assembly; 41. stator core;

[0027] 5. Bearing; 6. Rotor assembly; 61. Rotor blades. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1-2 In an embodiment of the utility model, a tire pressure power generation device and a vehicle include a tire 1 coaxially fixed to the outer ring of a wheel hub 2, and the tire cavity of the tire 1 constitutes a sealed cavity with stable pressure.

[0030] A fixing ring 33 is arranged coaxially with the tire 1 in the tire cavity of the tire 1, and the width of the fixing ring 33 is set corresponding to the width of the tire 1. The fixing ring 33 is a rigid ring body, and there is an annular cavity between the fixing ring 33 and the tread of the tire 1 for installing the air drum 3. The air drum 3 is an elastic sealing bladder, and the width corresponds to the tread of the tire 1. The air drum 3 is evenly arranged along the circumference of the tire 1 in the annular cavity.

[0031] Each air drum 3 is provided with a one-way air inlet valve 31 and a one-way exhaust valve 32. The air inlet of the one-way air inlet valve 31 and the exhaust port of the one-way exhaust valve 32 are both located in the tire cavity of the tire 1. The air drum 3 can be directly fixed on the outer ring of the fixing ring 33, or fixed on the tread of the tire 1, or fixed to the tire 1 and the fixing ring 33 at the same time, and the fixing method is not limited. An air duct is installed at the exhaust port of the one-way exhaust valve 32, which faces the rotor blades 61 directly through the air duct; the two sides of all rotor blades 61 can be connected by an annular reinforcement rib to form a closed loop, which increases the gas blowing effect. The rotor blades 61, the annular reinforcement ribs and the rotor assembly 6 are an integral structure, which increases the rigidity of the rotor. In order to reduce the number of air ducts, a number of one-way exhaust valves 32 can be connected in series and then the rotor blades 61 can be blown by gas through an air duct, and the air duct is fixed by the fixing ring 33.

[0032] The one-way air intake valve 31 and the one-way air exhaust valve 32 both pass through the fixing ring 33 to intake and exhaust air, and the one-way air intake valve 31 and the one-way air exhaust valve 32 are staggered along the axial direction of the tire 1. During the movement of the vehicle, the tire 1 is compressed and the air drum 3 at the bottom is squeezed and deformed, and the gas in the air drum 3 is discharged outward through the one-way air exhaust valve 32. After the tire 1 rotates further, it drives the air drum 3 upward. At this time, in order to maintain the air pressure balance, the one-way air intake valve 31 sucks air into the air drum 3 to restore the air pressure in the air drum 3 to the initial state. Since each air drum 3 is installed in the tire cavity of the tire 1, the tire cavity pressure of the tire 1 is kept in a stable state during the air drum 3 intake and exhaust process.

[0033] The power generation structure in this embodiment is an outer rotor permanent magnet brushless generator, and the specific structure is as follows.

[0034] The outer ring of the wheel hub 2 is arranged with a stator assembly 4, a bearing 5 and a rotor assembly 6 in sequence along the radial direction. The stator assembly 4 is coaxially fixed with the wheel hub 2. The bearing 5 can be arranged in one or more groups, preferably two groups, and arranged at intervals along the axial direction of the wheel hub 2. Positioning grooves are provided on the wheel hub 2 and the rotor assembly 6. The positioning groove of the outer ring of the wheel hub 2 is clamped and fixed with the inner ring of the bearing 5, and the positioning groove of the inner ring of the rotor assembly 6 is clamped and fixed with the outer ring of the bearing 5. Through the clamping fit, the stator assembly 4 coaxially fixed on the wheel hub 2 can be coaxially rotatably matched with the rotor assembly 6 through the bearing 5.

[0035] The outer ring of the stator assembly 4 is provided with a stator core 41, and the rotor coil is evenly wound on the stator core 41. The inner ring of the rotor assembly 6 is provided with a rotor core and a ferrite permanent magnet in sequence along the radial direction. When the rotor assembly 6 rotates relative to the stator assembly 4, it generates electricity through electromagnetic induction.

[0036] The outer ring of the rotor assembly 6 is evenly provided with rotor blades 61 along the circumferential direction, and the root of the rotor blade 61 is arranged along the radial direction of the rotor assembly 6. With the rotation direction of the tire 1 when the vehicle is moving forward as the front, each rotor blade 61 is arranged to be tilted forward. The exhaust direction of the one-way exhaust valve 32 of each air drum 3 is directly facing the surface of the rotor blade 61, so that the rotor blade 61 and the rotor assembly 6 are driven to rotate by wind force, and the power generation effect is generated by the relative rotation between the rotor assembly 6 and the stator assembly 4.

[0037] To facilitate disassembly and installation, the stator assembly 4, the rotor assembly 6, the bearing 5 and the fixing ring 33 are all of a half-type combined structure, which is divided into two parts along the circumferential direction and then fixed.

[0038] The electric energy generated by the rotor assembly 6 after rotating to generate electricity can be transmitted to the battery of the vehicle for storage. When the vehicle is a new energy vehicle, the electric energy generated can directly charge the battery pack of the vehicle.

[0039] The tire pressure generator can be installed in the tire of any vehicle, and the position can be adjusted after installation to keep the vehicle in a balanced state.

[0040] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0041] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

Claims

1. A tire pressure power generation device, characterized in that: The invention comprises a tire (1) coaxially fixed to the outer ring of a wheel hub (2), a stator assembly (4) and a rotor assembly (6) for induction power generation installed in the tire cavity of the tire (1), the rotor assembly (6) being arranged on the outer ring of the stator assembly (4) and coaxially rotating with the stator assembly (4), air drums (3) being evenly arranged along the circumference on the outer ring of the inner cavity of the tire (1), each air drum (3) storing air inside and having elasticity, a fixing ring (33) cooperating with the tire (1) to clamp and fix each air drum (3), a one-way air intake valve (31) and a one-way air exhaust valve (32) being provided on the air drum (3), and when the air drum (3) is pressurized, the one-way air exhaust valve (32) generates an exhaust propulsion action on the rotor blades (61) on the outer ring of the rotor assembly (6), so as to drive the rotor assembly (6) to coaxially rotate relative to the stator assembly (4) and generate electromagnetic induction power.

2. A tire pressure power generation device according to claim 1, characterized in that: The outer ring of the rotor assembly (6) is evenly arranged with rotor blades (61) along the circumferential direction. With the rotation direction of the tire (1) as the front, each rotor blade (61) is arranged tilted forward, and the exhaust port of the one-way exhaust valve (32) faces the surface of the rotor blade (61).

3. A tire pressure power generation device according to claim 1 or 2, characterized in that: The air inlet of the one-way air inlet valve (31) and the air outlet of the one-way air outlet valve (32) are both connected to the tire cavity of the tire (1) to maintain tire pressure balance.

4. A tire pressure power generation device according to claim 1 or 2, characterized in that: The stator assembly (4) is fixed on the wheel hub (2), and the wheel hub (2) and the rotor assembly (6) are rotatably matched via the bearing (5). Positioning grooves are provided on the wheel hub (2) and the rotor assembly (6), so as to be respectively clamped and fixed with the inner ring and outer ring of the bearing (5).

5. A tire pressure power generation device according to claim 1 or 2, characterized in that: The width of each air drum (3) is equal to the width of the tire (1), and the air drum (3) is connected and fixed to the tread and / or the fixing ring (33) of the tire (1).

6. A tire pressure power generation device according to claim 1 or 2, characterized in that: The stator assembly (4), the rotor assembly (6) and the bearing (5) are all half-split structures.

7. A tire pressure power generation device according to claim 1 or 2, characterized in that: The one-way exhaust valve (32) and the one-way intake valve (31) on the air drum (3) are staggered in position along the axial direction of the tire (1).

8. A vehicle, characterized in that: It comprises a tire pressure power generation device as claimed in claim 1 or 2.

9. A vehicle according to claim 8, characterized in that: The vehicle is a new energy vehicle, and the electric energy generated by the tire pressure generator is used to charge the battery pack of the vehicle.

10. A vehicle according to claim 8, characterized in that: A battery is installed in the vehicle to store the electric energy generated by the tire pressure generator.

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