Automobile wireless charging device and method based on highway

Abstract

The invention discloses an automobile wireless charging device and method based on a highway, and belongs to the technical field of electric automobile charging. An automobile wireless charging device based on a highway comprises a roadbed; the supporting frames are symmetrically arranged and fixedly connected to the two sides of a roadbed; the mounting frame is fixedly connected to the supporting frame; the plurality of groups of mounting frames are uniformly distributed on the support frame; the permanent magnet arranged on the roadbed is used for generating a magnetic field, when the coil arranged on the vehicle runs along with the running vehicle, the magnetic flux, penetrating through the induction coil, below the permanent magnet changes all the time, and according to the electromagnetic induction principle, induction current and induced electromotive force are generated in the induction coil, so that a battery in the running vehicle can be charged; when the device is used for charging the running vehicle, a charging pile does not need to be used for charging the running vehicle any more, a user only needs to drive on a road section provided with the permanent magnet, the running vehicle can be charged, the charging efficiency is higher, and more charging time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging, and in particular to a wireless charging device and method for an automobile based on a highway. Background Art

[0002] The current large-scale use of fossil energy has caused serious environmental problems in many places. Electric vehicles are more environmentally friendly than traditional internal combustion engine vehicles. Recently, the market ownership of electric vehicles has also shown an increasing trend, which has also put forward higher requirements for improving the charging efficiency of electric vehicles. The existing technology generally uses charging piles to charge electric vehicles by wire.

[0003] However, wired charging piles are not widely popularized. On highways, people often have to wait in long queues for charging. The charging efficiency is slow and the waiting time is long. Therefore, a device that can charge electric vehicles while they are driving is particularly important. Summary of the invention

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and to propose a wireless charging device and method for automobiles based on highways.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A wireless charging device for a car based on a highway, comprising:

[0007] Roadbed;

[0008] The support frames are symmetrically arranged and fixedly connected to both sides of the roadbed;

[0009] A mounting frame, fixedly connected to the supporting frame;

[0010] Multiple sets of mounting frames are evenly distributed on the support frame;

[0011] A plurality of groups of permanent magnets are fixedly connected to the mounting frame;

[0012] A plurality of groups of permanent magnets are evenly distributed on the mounting frame;

[0013] The coil is arranged on the top of the running vehicle;

[0014] The coil on the running vehicle is used to charge the running vehicle when passing through the magnetic field generated by the permanent magnet.

[0015] Preferably, the magnetic poles of two adjacent groups of permanent magnets have the same direction.

[0016] Furthermore, the coil is a copper coil.

[0017] A charging method for a wireless charging device for an automobile, comprising the following steps:

[0018] Step S1, installing support frames on both sides of the roadbed, and installing a mounting frame between two groups of support frames;

[0019] Step S2, installing multiple groups of permanent magnets on a mounting frame;

[0020] Step S3, when the running vehicle travels on the roadbed, the energized coil on the top of the running vehicle passes through the magnetic field generated by the multiple groups of permanent magnets;

[0021] Step S4, the magnetic lines of force of the energized coil change, the coil generates an induced electromotive force, and the generated induced electromotive force charges the battery through a voltage stabilizing and rectifying circuit;

[0022] Step S5: Charging is performed during driving to slow down the rate at which the battery power decreases.

[0023] Preferably, the permanent magnet is any one of an Alnico magnet, a SmCo magnet, a Neodymium magnet and a ferrite.

[0024] Compared with the prior art, the present invention provides a wireless charging device and method for automobiles based on highways, which has the following beneficial effects:

[0025] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention generates a magnetic field by utilizing multiple groups of permanent magnets arranged on the roadbed. When the running vehicle is running, the magnetic flux passing through the induction coil under the permanent magnet changes momentarily through the coil arranged on the vehicle. According to the principle of electromagnetic induction, an induced current and an induced electromotive force are generated in the induction coil, which can charge the battery in the running vehicle. By charging the running vehicle through the device, there is no need to use a charging pile to supplement the power of the running vehicle. The user only needs to drive on the road section where the permanent magnet is set to complete the charging of the running vehicle. The charging efficiency is higher and the charging time is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a wireless charging device for a car based on a highway proposed by the present invention Figure 1 ;

[0027] Figure 2 A schematic diagram of the structure of a wireless charging device for a car based on a highway proposed by the present invention Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the connection structure of a support frame and a mounting frame in a wireless charging device for a car based on a highway proposed by the present invention;

[0029] Figure 4 A schematic diagram of magnetic field lines of a wireless charging method for a car based on a highway proposed by the present invention;

[0030] Figure 5 A circuit diagram of a vehicle running in a highway-based automobile wireless charging method proposed by the present invention;

[0031] Figure 6 The present invention is a flowchart of a method for wireless charging of a car based on a highway.

[0032] In the figure: 1, support frame; 2, mounting frame; 201, permanent magnet; 3, running vehicle; 301, coil; 4, roadbed. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example:

[0035] Reference Figure 1-Figure 3 , a wireless charging device for a car based on a highway, comprising:

[0036] Roadbed 4;

[0037] The supporting frames 1 are symmetrically arranged and fixedly connected to both sides of the roadbed 4;

[0038] A mounting frame 2, fixedly connected to the supporting frame 1;

[0039] A plurality of mounting frames 2 are evenly distributed on the supporting frame 1;

[0040] Multiple groups of permanent magnets 201 are fixedly connected to the mounting frame 2;

[0041] Multiple groups of permanent magnets 201 are evenly distributed on the mounting frame 2;

[0042] The running vehicle 3 is arranged on the roadbed 4, and the running vehicle 3 is located directly below the permanent magnet 201;

[0043] The running vehicle 3 is a common electric car on the market.

[0044] The coil 301 is connected to the top of the running vehicle 3 .

[0045] The magnetic poles of two adjacent groups of permanent magnets 201 have the same direction.

[0046] The coil 301 is a copper coil.

[0047] It should be noted that the permanent magnet 201 may have a certain impact on the sensor signal in the running vehicle 3. If the permanent magnet 201 is close to the sensor of the electronic control system in the running vehicle 3, it may affect the sensor signal, causing the engine fault light to light up or other related faults. At this time, the user drives the running vehicle 3 away from the magnetic field section and the fault signal light can be eliminated.

[0048] Reference Figure 4-Figure 6 , a charging method for a wireless charging device for a car based on a highway, comprising the following steps:

[0049] Step S1, installing support frames 1 on both sides of the roadbed 4, and installing a mounting frame 2 between two groups of support frames 1;

[0050] Step S2, installing multiple groups of permanent magnets 201 on the mounting frame 2;

[0051] Step S3, when the running vehicle 3 travels on the roadbed 4, the energized coil 301 on the top of the running vehicle 3 passes through the magnetic field generated by the multiple groups of permanent magnets 201;

[0052] Step S4, the magnetic lines of force of the energized coil 301 change, and the coil 301 generates an induced electromotive force, which is then used to charge the battery through a voltage stabilizing and rectifying circuit;

[0053] Step S5: Charging is performed during driving to slow down the rate at which the battery power decreases.

[0054] It should be noted that the voltage stabilizing and rectifying circuit is a commonly used control circuit on the market.

[0055] It should also be noted that the magnetic field is strongest directly below the permanent magnet 201 , and the edge magnetic field gradually weakens.

[0056] Reference Figure 2-Figure 6 During use, the user drives the running vehicle 3 on the roadbed 4, and the copper coil 301 on the top of the running vehicle 3 will move under the permanent magnet 201. As the energized coil 301 moves, the magnetic flux below changes all the time, and power can be supplied to the battery at this time.

[0057] The permanent magnet 201 is any one of an Alnico magnet, a SmCo magnet, a Neodymium magnet, and a ferrite.

[0058] It should be noted that the maximum operating temperature of AlNiCo magnets is 540°C, the maximum operating temperature of SmCo magnets and ferrites is 300°C, and the maximum operating temperature of Neodymium magnets is 140°C.

[0059] It should be further explained that the support frame 1 and the mounting frame 2 are made of alloy materials available on the market and will not interfere with the permanent magnet 201 during use.

[0060] By using a high temperature resistant permanent magnet 201 , it is possible to prevent the magnetic field from changing due to an external high temperature environment, thereby effectively ensuring the stability of the magnetic field lines of the permanent magnet 201 .

[0061] It should also be noted that the magnetic field lines of the permanent magnet 201 will not affect the navigation system of the operating vehicle 3 .

[0062] Reference Figure 1 , Figure 2 When the running vehicle 3 is traveling on the roadbed 4, the permanent magnet 201 directly above the running vehicle 3 will generate a certain suction force on the running vehicle 3. At this time, the running vehicle 3 will tend to be pulled upward. At this time, the pressure of the running vehicle 3 on the roadbed 4 is reduced, thereby reducing the friction of the tires on the running vehicle 3, thereby extending the life of the tires, reducing the possibility of tire waste generation, and reducing the pollution of tire waste to the environment, while reducing the consumption of raw materials and energy.

[0063] It should be noted that the gravitational force of the permanent magnet 201 on the running vehicle 3 is smaller than the self-weight of the running vehicle 3, so as to ensure that the running vehicle 3 can brake normally during driving.

[0064] It should also be noted that the magnitude of the magnetic force of the permanent magnet 201 attracting the running vehicle 3 is related to the magnetic energy product, distance, shape and magnetic permeability of the running vehicle 3. The specific magnetic force calculation is:

[0065] Magnetic energy product: A physical quantity that measures the ability of a magnet to store energy and directly affects the magnitude of the magnetic force.

[0066] Distance: The distance between the magnet and the iron object is a key factor in the attenuation of magnetic force. As the distance increases, the magnetic force weakens significantly.

[0067] Shape of magnets and iron: Different shapes of magnets and iron objects have a significant effect on the distribution of magnetic force.

[0068] Magnetic permeability of the running vehicle 3: The magnetic permeability of the running vehicle 3 determines the ease with which it is magnetized, thereby affecting the effect of the magnetic force.

[0069] Calculation formula overview: In practical applications, empirical formulas or table lookup methods are often used to estimate the magnitude of magnetic force.

[0070] Simplified estimation method:

[0071] For non-expert users, the magnetic force is estimated by the following simplified method:

[0072] Measurement using a magnetometer: Directly measure the attraction of a magnet on a ferrous object at a specific distance.

[0073] Refer to manufacturer data: Magnet manufacturers often provide data sheets or graphs on the magnetic properties of their products.

[0074] Rule of thumb: Use a rule of thumb to make an estimate based on the type, size, and intended application of the magnet.

[0075] The present invention generates a magnetic field by utilizing multiple groups of permanent magnets 201 arranged on the roadbed 4, and the magnetic flux passing through the induction coil under the permanent magnet changes momentarily when the running vehicle is running through the coil arranged on the vehicle. According to the principle of electromagnetic induction, an induced current and an induced electromotive force are generated in the induction coil, which can then charge the battery in the running vehicle. By charging the running vehicle 3 through the device, there is no need to use a charging pile to supplement the power of the running vehicle 3. The user only needs to drive on the section where the permanent magnet 201 is set to complete the charging of the running vehicle 3, which has higher charging efficiency and saves charging time.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wireless charging device for a car based on a highway, characterized in that: include: Roadbed (4); A symmetrically arranged support frame (1) is fixedly connected to both sides of the roadbed (4); A mounting frame (2) fixedly connected to the supporting frame (1); A plurality of mounting frames (2) are evenly distributed on the support frame (1); A plurality of groups of permanent magnets (201) are fixedly connected to the mounting frame (2); A plurality of groups of permanent magnets (201) are evenly distributed on the mounting frame (2); A coil (301) is arranged on the top of the running vehicle (3); The coil (301) on the running vehicle (3) is used to charge the running vehicle (3) when passing through the magnetic field generated by the permanent magnet (201).

2. The wireless charging device for automobiles based on highways according to claim 1, characterized in that: The magnetic poles of two adjacent groups of permanent magnets (201) have the same direction.

3. The wireless charging device for automobiles based on highways according to claim 2, characterized in that: The coil (301) is a copper coil.

4. A wireless charging method for a car based on a highway, comprising the wireless charging device according to claim 3, characterized in that: The following steps are involved: Step S1, installing support frames (1) on both sides of the roadbed (4), and installing a mounting frame (2) between two groups of support frames (1); Step S2, installing multiple groups of permanent magnets (201) on the mounting frame (2); Step S3, when the running vehicle (3) travels on the roadbed (4), the energized coil (301) on the top of the running vehicle (3) passes through the magnetic field generated by the multiple groups of permanent magnets (201); Step S4, the magnetic lines of force of the energized coil (301) change, and the coil (301) generates an induced electromotive force, which is then used to charge the battery via a voltage stabilizing and rectifying circuit; Step S5: Charging is performed during driving to slow down the rate at which the battery power decreases.

5. The method for wireless charging of a car based on a highway according to claim 4, characterized in that: The permanent magnet (201) is any one of an AlNiCo magnet, a SmCo magnet, a Neodymium magnet and a ferrite.

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