Automatic induction power generation system for automobiles running on expressway

Abstract

The invention discloses an automatic induction power generation system for automobiles running on a highway, which comprises an automobile body, the automobile body comprises a hub, and a magnetic field cutting unit is arranged in the hub; a magnetic field emitter is arranged on one side of the hub, a magnetic field receiver is arranged on the other side of the hub, the magnetic field receiver is aligned with the magnetic field emitter, and a magnetic field space is formed between the magnetic field receiver and the magnetic field emitter; a wireless electric energy transmission device and a boosting transformer are arranged between the hub and the automobile body, the wireless electric energy transmission device comprises a piezoelectric material layer, a wireless electric energy transmitter and a wireless electric energy receiver, and a storage battery is arranged in the automobile body or the hub; when the hub rotates, the hub drives the magnetic field cutting unit to cut magnetic induction lines and generate induction current, and the current is transmitted to the wireless electric energy receiver across the air. According to the technical scheme, the structural design is reasonable, the endurance mileage of the automobile can be increased, the refueling and charging frequency is reduced, energy is saved, cost is saved, environmental pollution is reduced, and practicability is good.

Description

Technical Field

[0001] The invention relates to the technical field of power generation systems, and in particular to an automatic induction power generation system for a vehicle traveling on a highway. Background Art

[0002] With the development of economy and the progress of society, energy conservation has become inevitable and a social consensus. Various cars are increasingly developing in the direction of energy saving, convenience, space saving, safety and efficiency, energy saving and environmental protection. As the most important means of transportation in people's lives, cars are no exception. Usually cars are powered by fuel, gas or external charging electricity. In order to adapt to the demand for energy conservation, reduce air pollution in the atmosphere and save energy, various brands and models of new energy electric vehicles have gradually appeared on the market, which have been favored by consumers in the market, and the sales of new energy vehicles have soared.

[0003] The disadvantages of the existing technology are that new energy vehicles have weak endurance, short driving range, and long charging time, resulting in the current market for pure electric vehicles being not ideal. On the contrary, hybrid vehicles have better prospects, but hybrid vehicles have not really solved the fundamental problems of energy conservation and environmental pollution. The main reasons are the long charging queues and long charging time, which makes most people still use refueling. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an automatic induction power generation system for highway vehicles with a reasonable structural design, which can increase the vehicle's cruising range, reduce the frequency of refueling and charging, save energy, save costs and reduce environmental pollution.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic induction power generation system for a car traveling on a highway, comprising a car body, the car body comprising a wheel hub, a magnetic field cutting unit is arranged in the wheel hub; a magnetic field transmitter is arranged on one side of the wheel hub, a magnetic field receiver is arranged on the other side of the wheel hub, the magnetic field receiver is arranged to align with the magnetic field transmitter, and a magnetic field space is formed between the magnetic field receiver and the magnetic field transmitter; A wireless power transmission device and a step-up transformer are arranged between the wheel hub and the vehicle body, the wireless power transmission device includes a piezoelectric material layer, a wireless power transmitter and a wireless power receiver, and a battery is arranged in the vehicle body or the wheel hub; when the wheel hub rotates, the wheel hub drives the magnetic field cutting unit to cut the magnetic flux lines and generate an induced current, the current is converted into electric energy through the wireless power transmitter and then transmitted to the wireless power receiver across the air, and the voltage of the direct current is increased through the step-up transformer to charge the battery, or a rectifier is arranged between the wireless power receiver and the step-up transformer, the alternating current is converted into direct current by the rectifier, and the voltage is increased through the step-up transformer to charge the battery.

[0006] The present invention is further configured as follows: the wheel hub is a metal wheel hub, the magnetic field cutting unit and the wireless power transmission device are both fixedly mounted on the wheel hub, the magnetic field cutting unit includes a metal induction coil, and the piezoelectric material layer is fixedly connected to the metal induction coil.

[0007] The present invention is further configured as follows: a first guardrail is provided at the magnetic field transmitter, and the magnetic field transmitter is fixedly connected to the first guardrail; a second guardrail is provided at the magnetic field receiver, and the magnetic field receiver is fixedly connected to the second guardrail.

[0008] The present invention is further configured as follows: a battery installation cavity is provided at the bottom of the automobile body, the battery, wireless power receiver, rectifier and step-up transformer are all installed in the battery installation cavity, the wireless power receiver is connected to the rectifier through a wire, the rectifier is connected to the step-up transformer through a wire, and the step-up transformer is connected to the battery through a wire.

[0009] The present invention is further configured such that: when the wheel hub rotates, the wheel hub drives the magnetic field cutting unit to cut the magnetic flux lines and generate alternating current less than 24V.

[0010] The present invention is further configured as follows: an electrical signal converter and a piezoelectric transducer are provided in the piezoelectric material layer, and the wireless power transmission device utilizes the inverse piezoelectric effect. When an electric field is applied to the piezoelectric material in the piezoelectric material layer, the piezoelectric material undergoes mechanical deformation, driving the piezoelectric transducer to generate ultrasonic vibrations, converting electrical energy into sound energy, and transmitting the ultrasonic waves to the wireless power receiver through the wireless power transmitter to realize electrical energy conversion and wireless power transmission.

[0011] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention has a reasonable structural design. When the wheel hub rotates, the wheel hub drives the magnetic field cutting unit to cut the magnetic flux lines and generate an induced current. The current is converted into electric energy through the wireless power transmitter and transmitted to the wireless power receiver through the air. The voltage of the DC power is increased by a step-up transformer to charge the battery, or a rectifier is provided between the wireless power receiver and the step-up transformer. After the AC power is converted into DC power by the rectifier, the voltage is increased by a step-up transformer to charge the battery. While the existing cruising range of traditional electric vehicles remains unchanged, a power supplement source is added. The vehicle can be charged while driving to extend the cruising range, which can improve the cruising range of the vehicle, reduce the frequency of refueling and charging, save energy, save costs and reduce environmental pollution, and has good practicality.

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic structural diagram of a wheel hub according to an embodiment of the present invention; Figure 3 It is a principle block diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0014] In the description of this embodiment, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as limiting the present invention. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0015] See also Figures 1 to 3 The present invention discloses an automatic induction power generation system for a highway-traveling vehicle, comprising a vehicle body 1, wherein the vehicle body 1 comprises a wheel hub 2, wherein a magnetic field cutting unit is arranged in the wheel hub 2; a magnetic field transmitter 3 is arranged on one side of the wheel hub 2, and a magnetic field receiver 4 is arranged on the other side of the wheel hub 2, wherein the magnetic field receiver 4 is arranged to align with the magnetic field transmitter 3, and a magnetic field space is formed between the magnetic field receiver 4 and the magnetic field transmitter 3; A wireless power transmission device 5 and a step-up transformer 6 are arranged between the wheel hub 2 and the automobile body 1. The wireless power transmission device 5 includes a piezoelectric material layer 51, a wireless power transmitter 52 and a wireless power receiver 53. A battery 7 is arranged in the automobile body 1 or the wheel hub 2. When the wheel hub 2 rotates, the wheel hub 2 drives the magnetic field cutting unit to cut the magnetic flux lines and generate an induced current. The current is converted into electric energy through the wireless power transmitter 52 and then transmitted to the wireless power receiver 53 through air. The voltage of the direct current is increased by the step-up transformer 6 to charge the battery 7. Alternatively, a rectifier 8 is arranged between the wireless power receiver 53 and the step-up transformer 6. After the alternating current is converted into direct current by the rectifier 8, the voltage is increased by the step-up transformer 6 to charge the battery 7.

[0016] Preferably, the wheel hub 2 is a metal wheel hub, the magnetic field cutting unit and the wireless power transmission device 5 are both fixedly mounted on the wheel hub 2 , the magnetic field cutting unit includes a metal induction coil 21 , and the piezoelectric material layer 51 is fixedly connected to the metal induction coil 21 .

[0017] The magnetic field transmitter 3 is provided with a first guardrail 9, and the magnetic field transmitter 3 is fixedly connected to the first guardrail 9; the magnetic field receiver 4 is provided with a second guardrail 10, and the magnetic field receiver 4 is fixedly connected to the second guardrail 10. Preferably, a plurality of magnetic field transmitters 3 are evenly distributed along the length direction of the first guardrail 9, and the magnetic field transmitter 3 and the first guardrail 9 are both fixed by bolt connection; a plurality of magnetic field receivers 4 are evenly distributed along the length direction of the second guardrail 10, and the magnetic field receiver 4 and the second guardrail 10 are both fixed by bolt connection, a first magnet is provided in the magnetic field transmitter 3, and a second magnet is provided in the magnetic field receiver 4, the N pole of the first magnet is aligned with the S pole of the second magnet, and a magnetic field space is formed between the first magnet and the second magnet. In this embodiment, the number of magnetic field transmitters 3 and magnetic field receivers 4 is set to more than 3, and the number of magnetic field transmitters 3 and magnetic field receivers 4 is the same.

[0018] A battery installation cavity is provided at the bottom of the automobile body 1, and the battery 7, wireless power receiver 53, rectifier 8 and boost transformer 6 are all installed in the battery installation cavity. The wireless power receiver 53 is connected to the rectifier 8 through a wire, the rectifier 8 is connected to the boost transformer 6 through a wire, and the boost transformer 6 is connected to the battery 7 through a wire.

[0019] When the wheel hub 2 rotates, the wheel hub 2 drives the magnetic field cutting unit to cut the magnetic flux lines and generate an alternating current less than 24 V. The battery 7 is a 24V battery, that is, the rated working voltage of the battery is 24V.

[0020] The piezoelectric material layer 51 is provided with an electrical signal converter and a piezoelectric transducer. The wireless power transmission device utilizes the inverse piezoelectric effect. When an electric field is applied to the piezoelectric material in the piezoelectric material layer 51, the piezoelectric material undergoes mechanical deformation, driving the piezoelectric transducer to generate ultrasonic vibrations, converting electrical energy into sound energy. When the ultrasonic wave is transmitted to the wireless power receiver 53 through the wireless power transmitter 52, electrical energy conversion and wireless power transmission are realized.

[0021] Since ultrasound can penetrate some materials that shield electromagnetic fields, such as metal, it can power devices in closed metal containers or environments with metal obstacles, and has strong penetration. At the same time, ultrasound has good directionality, and the energy is concentrated in a specific propagation direction, which can achieve efficient transmission over long distances and reduce energy scattering and loss in non-transmission directions. Compared with other wireless power transmission methods, ultrasound is less harmful to the human body and less disturbing to surrounding electronic equipment, and is safer and more reliable to use.

[0022] In actual application, electric energy is generated during the normal driving of the car and stored and collected. (1) Power generation by driving: Utilizing Faraday’s law of electromagnetic induction, the high-speed guardrail is used to construct a magnetic field space, and the car is used as a conductor to generate electricity by cutting the magnetic field in the space while the car is driving.

[0023] (2) Energy collection: The induced AC power is converted into DC power through a rectifier, and the DC power is smoothed using a filter to reduce voltage and current fluctuations. This process ensures that the parameters such as the number of turns, cross-sectional area, and magnetic flux of the coil are matched to improve the efficiency of energy conversion.

[0024] (3) Energy storage: Select appropriate energy storage devices according to application requirements, such as lithium-ion batteries, supercapacitors, etc. Monitor the status of energy conversion and storage devices, and optimize the energy collection and storage process.

[0025] The magnetic field transmitter 3 and the magnetic field receiver 4 of the present invention can be selected from special permanent magnets or electromagnets. As a preferred embodiment, the permanent magnets include neodymium iron boron magnets, ferrite magnets, samarium cobalt magnets, aluminum nickel cobalt magnets, rubber magnets or bonded neodymium iron boron magnets. Neodymium iron boron magnets are selected as materials for constructing magnetic fields to reduce the impact of external environmental changes on magnet wear and magnetic field consumption, maintain cutting stability and ensure cutting power generation efficiency.

[0026] The metal induction coil 21 is directly attached to the inner side of the wheel hub 2 and adopts a ring-shaped induction coil design. The metal induction coil 21 is designed as a segmented arc module to adapt to the arc structure of the inner space of the wheel hub. At the same time, the appropriate number of coil turns is selected to control the magnitude of the induced electromotive force generated by electromagnetic induction.

[0027] The metal induction coil 21 is adhered and fixedly bonded to the inner side of the wheel hub 2 by epoxy glue. This connection method is simple and direct, and can minimize the extra space occupied. Since the induction coil fits tightly to the wheel hub, the heat conduction is relatively good, which is conducive to the heat dissipation of the coil. At the same time, it can also rotate with the wheel hub more accurately to ensure the stability of the metal induction coil cutting the magnetic flux lines.

[0028] The range of the magnetic field should cover the area that the induction device on the car can effectively cut. Since the magnetic field cutting unit is installed at the wheel hub of the car, the corresponding magnetic field range should cover the area that can be reached when the wheel rotates, so the magnetic flux line coverage height should be between 0-1.4m. In order to minimize the impact of the magnetic field on people, the magnetic field height can be appropriately reduced, and the range of 0-1m is appropriate.

[0029] In order to reduce the harm of the magnetic induction intensity generated by the device to the human body, the magnetic induction intensity must be appropriately reduced as much as possible without affecting normal power generation. Therefore, the order of magnitude of the magnetic induction intensity is controlled between 10-3 and 10-1T (T is the unit of magnetic induction intensity, Tesla), and then the number of turns of the wheel hub metal induction coil 21 is reasonably set, so that the required low-voltage AC power of less than 24V can be generated.

[0030] After obtaining low-voltage AC power, this energy needs to be used to charge the battery. At this time, there are two options.

[0031] Solution 1: Obtain low voltage (<24V) AC power - convert to low voltage (<24V) DC power - convert to 24V DC power - power the battery; The first step is the process of converting AC to DC, which requires a rectifier circuit, and the rectifier circuit adopts a bridge rectifier circuit.

[0032] Option 2: Obtain low voltage (<24V) AC power - convert to 24V AC power - convert to 24V DC power - to power the battery.

[0033] After obtaining low-voltage DC power, the DC voltage needs to be increased to 24V to match the battery charging voltage. This part will be completed using a DC-DC boost converter. Since this part already has relatively mature electromechanical equipment, it can be used directly.

[0034] In actual use, since the peak period of vehicle driving is different from the peak period of power release (i.e. night lighting), it is very likely that the battery is fully charged when there is heavy traffic during the day. If you continue to charge at this time, the battery life will be affected, and in serious cases, it may even cause safety problems.

[0035] In view of the above problem, the present invention supplements the above charging circuit with an overcharge protection circuit to prevent this situation from happening. Take the voltage across the battery as VIN. If the circuit is normally turned on to get VOUT, charging can continue. Otherwise, when the voltage is too high, the circuit is cut off and VOUT=0. At this time, the charging circuit can be cut off through the logic gate, but the protection circuit for detecting overcharge does not need to be cut off. When the battery power is lower than the critical voltage, the circuit returns to the normal conduction state and allows charging to continue. Among them, the critical voltage is determined by the Zener diode. Here, according to the needs, you can select Zener diode types such as BZT52C24, BZX84C24, MM1Z24V, etc., whose critical voltage is 24V, which meets the requirements here.

[0036] The main advantage of this protection circuit is that it does not require an additional power supply when allowed (this is consistent with the actual situation because the product is used on roads without energy supply), and only relies on the battery itself for detection. Moreover, since the detection element consumes very little energy, the energy consumed by the detection circuit is negligible compared to the battery energy storage.

[0037] The above technical solution drives the wheel hub to rotate by the rotation of the automobile wheel, and the wheel hub drives the magnetic field cutting unit to cut the magnetic flux lines and generate induced current, thereby achieving the purpose of power generation. The current is transmitted to the wireless power receiver 53 through the wireless power transmitter 52 after converting the electric energy, and the voltage of the DC power is increased by the step-up transformer 6 to charge the battery 7, or a rectifier 8 is provided between the wireless power receiver 53 and the step-up transformer 6, and the AC power is converted into DC power by the rectifier 8, and then the voltage is increased by the step-up transformer 6 to charge the battery 7. While the existing cruising range of traditional electric vehicles remains unchanged, a power supplement source is added, and the vehicle can be charged while driving to achieve the effect of extending the cruising range. The structural design is reasonable, which can improve the cruising range of the vehicle, reduce the frequency of refueling and charging, save energy, save costs and reduce environmental pollution, and has good practicality.

[0038] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. An automatic induction power generation system for a vehicle traveling on a highway, comprising a vehicle body (1), wherein the vehicle body (1) comprises a wheel hub (2), and characterized in that: A magnetic field cutting unit is arranged in the wheel hub (2); a magnetic field transmitter (3) is arranged on one side of the wheel hub (2), and a magnetic field receiver (4) is arranged on the other side of the wheel hub (2); the magnetic field receiver (4) is arranged to align with the magnetic field transmitter (3), and a magnetic field space is formed between the magnetic field receiver (4) and the magnetic field transmitter (3); A wireless power transmission device (5) and a step-up transformer (6) are provided between the wheel hub (2) and the vehicle body (1); the wireless power transmission device (5) comprises a piezoelectric material layer (51), a wireless power transmitter (52) and a wireless power receiver (53); a storage battery (7) is provided in the vehicle body (1) or the wheel hub (2); when the wheel hub (2) rotates, the wheel hub (2) drives the magnetic field cutting unit to cut the magnetic flux lines and generate an induced current, which is then transmitted to the wireless power receiver (53) through air after the electric energy is converted by the wireless power transmitter (52), and the voltage of the direct current is increased by the step-up transformer (6) to charge the storage battery (7); or a rectifier (8) is provided between the wireless power receiver (53) and the step-up transformer (6), and the alternating current is converted into direct current by the rectifier (8), and the voltage is increased by the step-up transformer (6) to charge the storage battery (7).

2. The automatic induction power generation system for a vehicle on a highway according to claim 1, characterized in that: The wheel hub (2) is a metal wheel hub, the magnetic field cutting unit and the wireless power transmission device (5) are both fixedly mounted on the wheel hub (2), the magnetic field cutting unit comprises a metal induction coil (21), and the piezoelectric material layer (51) is fixedly connected to the metal induction coil (21).

3. The automatic induction power generation system for a vehicle on a highway according to claim 2 is characterized by: A first guardrail (9) is provided at the magnetic field transmitter (3), and the magnetic field transmitter (3) is fixedly connected to the first guardrail (9); a second guardrail (10) is provided at the magnetic field receiver (4), and the magnetic field receiver (4) is fixedly connected to the second guardrail (10).

4. The automatic induction power generation system for a vehicle on a highway according to claim 3 is characterized by: A battery installation cavity is provided at the bottom of the automobile body (1); the storage battery (7), the wireless power receiver (53), the rectifier (8) and the step-up transformer (6) are all installed in the battery installation cavity; the wireless power receiver (53) is connected to the rectifier (8) via a wire, the rectifier (8) is connected to the step-up transformer (6) via a wire, and the step-up transformer (6) is connected to the storage battery (7) via a wire.

5. The automatic induction power generation system for a vehicle on a highway according to claim 4 is characterized by: When the wheel hub (2) rotates, the wheel hub (2) drives the magnetic field cutting unit to cut the magnetic flux lines and generate alternating current less than 24V.

6. The automatic induction power generation system for a vehicle on a highway according to claim 1 or 5, characterized in that: An electric signal converter and a piezoelectric transducer are provided in the piezoelectric material layer (51). The wireless power transmission device utilizes the inverse piezoelectric effect. When an electric field is applied to the piezoelectric material in the piezoelectric material layer (51), the piezoelectric material undergoes mechanical deformation, driving the piezoelectric transducer to generate ultrasonic vibrations, thereby converting electric energy into acoustic energy. When the ultrasonic waves are transmitted to the wireless power receiver (53) via the wireless power transmitter (52), electric energy conversion and wireless power transmission are achieved.

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