CN110435570B - Vehicle power supply system, vehicle and method - Google Patents

Vehicle power supply system, vehicle and method Download PDF

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Publication number
CN110435570B
CN110435570B CN201910622936.0A CN201910622936A CN110435570B CN 110435570 B CN110435570 B CN 110435570B CN 201910622936 A CN201910622936 A CN 201910622936A CN 110435570 B CN110435570 B CN 110435570B
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China
Prior art keywords
wind
power
power generation
vehicle
generator
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CN201910622936.0A
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CN110435570A (en
Inventor
李盖华
汤小生
王冬冬
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Publication of CN110435570A publication Critical patent/CN110435570A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a power supply system for a vehicle, which comprises a power battery, a generator, a converter and a plurality of wind power generation devices, wherein the wind power generation devices are embedded at the windward part in a vehicle body and are used for converting wind energy into electric energy; the power battery is connected with the wind power generation device; the converter is connected with the power battery and used for converting the output voltage of the power battery to supply power to electric equipment of the whole vehicle; the generator is used for supplying power to the electric equipment of the whole vehicle. The invention also discloses a vehicle and a power supply method. By adopting the invention, the oil consumption of the vehicle can be reduced, and the endurance mileage of the vehicle can be improved; so as to achieve the purposes of saving energy, reducing emission and improving the service performance; and the universality is good, and the reliability is good.

Description

Vehicle power supply system, vehicle and method
Technical Field
The present invention relates to a power supply system, and more particularly, to a power supply system for a vehicle, a vehicle having the system, and a power supply method of the system.
Background
In the conventional automobile power supply, an engine drives a generator to generate power, so that the whole automobile is supplied with power. The existing new energy automobile is provided with a power battery, and the power battery can be used as a power source on one hand and can also supply power to other electric equipment of the automobile on the other hand; under the condition that the electric quantity of the power battery is insufficient, the engine drives the generator to supply power to the whole vehicle. However, in any type of vehicle, the amount of available electric power decreases as the vehicle travels, and the vehicle has poor cruising ability and high fuel consumption. By adding more batteries, although the problem of endurance can be solved, the weight, the cost and the like of the vehicle are increased virtually.
In some existing designs, a solution for adding a wind power generator to a vehicle is provided. In the running process of the vehicle or in a windy place, the wind driven generator can convert wind energy into electric energy to charge the vehicle. Although the charging problem of the automobile in the driving process is solved to a certain extent, the cruising ability of the automobile can be improved. However, many problems are brought about, for example, the energy conversion rate of the existing wind power generator is not high, the effect cannot be achieved by the close proximity of a single wind power generator, and only the weight of the vehicle is increased; in addition, the wind driven generator is arranged outside the vehicle body, which affects the attractive appearance of the vehicle.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a power supply system for a vehicle, the power supply system including a power battery, a generator, a dc-dc converter and a plurality of wind power generation devices,
the wind power generation device is embedded in the windward part in the vehicle body and is used for converting wind energy into electric energy; the power battery is connected with the wind power generation device;
the direct current-direct current converter is connected with the power battery and used for supplying power to electric equipment of the whole vehicle; the generator is used for supplying power to the electric equipment of the whole vehicle.
Further, the power supply system further comprises a storage battery, and the storage battery is respectively connected with the direct current-direct current converter and the generator.
Further, the power supply system further comprises a controller, and the controller is respectively connected with the wind power generation device, the power battery and the generator.
Further, the controller is used for acquiring the residual voltage of the power battery and the wind speed at an air inlet of the wind power generation device; judging whether the residual voltage of the power battery is smaller than a first preset voltage or not and judging whether the wind speed at the air inlet is smaller than a first preset wind speed or not; and controlling the generator or the power battery to supply power to the storage battery and the electric equipment according to the residual voltage of the power battery and the judgment result of the wind speed at the air inlet.
Furthermore, the wind power generation devices are arranged in parallel on one side of the air outlet of the radiator in the grille and/or the vehicle body at the position of the front bumper of the vehicle; the wind power generation devices are respectively connected with the power batteries in parallel.
Furthermore, the wind power generation device comprises a shell, fan blades, a rotating shaft and a wind power generator, wherein a rotor of the wind power generator is connected with the fan blades through the rotating shaft, and the fan blades are arranged in the shell;
the shell is provided with an air inlet and an air outlet, and the area of the air outlet is not smaller than that of the air inlet; the flow direction of the fluid at the air inlet is vertical to the axial direction of the rotating shaft, so that the fluid pushes the fan blades along the radial direction.
Further, the fan blade comprises a plurality of blades, and the projection area of the blades on the first reference surface is larger than that on the second reference surface; wherein the first reference surface is perpendicular to the flow direction of the fluid and the second reference surface is parallel to the flow direction of the fluid; the size of the air inlet is gradually reduced along the flowing direction of the fluid.
Furthermore, the wind driven generator is a magnetic suspension generator, the magnetic suspension generator comprises a rotor, a stator and a plurality of magnetic steels, a cavity is arranged in the stator, and the plurality of magnetic steels are relatively attached to the side wall of the cavity; the rotor is sleeved on the rotating shaft, and the rotor is located between the magnetic steels.
Correspondingly, the invention also provides a vehicle, which comprises the vehicle power supply system,
the vehicle also comprises an engine and a plurality of electric equipment, wherein the electric equipment is respectively connected with the DC-DC converter;
and the plurality of electric equipment is also connected with the generator, and the generator is connected with the engine.
Correspondingly, the invention also provides a power supply method, which uses the vehicle power supply system, and comprises the following steps:
acquiring the residual voltage of the power battery and the wind speed at an air inlet of the wind power generation device;
judging whether the residual voltage of the power battery is smaller than a first preset voltage or not and judging whether the wind speed at the air inlet is smaller than a first preset wind speed or not;
and controlling the generator or the power battery to supply power to the storage battery and the electric equipment according to the residual voltage of the power battery and the judgment result of the wind speed at the air inlet.
Correspondingly, the invention also provides a power supply system for the vehicle, when the working voltage of the electric equipment of the whole vehicle is equal to the output voltage of the wind power generation device, the power supply system comprises a power battery, a generator and a plurality of wind power generation devices,
the wind power generation device is embedded in the windward part in the vehicle body and is used for converting wind energy into electric energy; the power battery is connected with the wind power generation device;
the power battery and the wind power generation device are respectively connected with electric equipment of the whole vehicle and respectively supply power to the electric equipment.
The embodiment of the invention has the following beneficial effects:
(1) the power supply system can convert wind energy into electric energy to charge the power battery of the vehicle in the running process of the vehicle or in a windy place, so that the oil consumption of the vehicle is reduced, and the endurance mileage of the vehicle is improved; so as to achieve the purposes of saving energy, reducing emission and improving the service performance;
(2) the wind power generation device has small size, can be flexibly arranged in each space of a vehicle, and can realize that a large amount of power is accumulated to form electric quantity with a certain magnitude; the device can adapt to vehicles of different types and has good universality;
(3) the wind power generation device disclosed by the invention has the advantages that the structure can maximally use wind energy to push the fan blades, the starting wind speed of the magnetic suspension generator is low, and the conversion rate of the wind energy is further improved;
(4) in addition, the wind power generation device is provided with a collector plate at the air inlet, so that wind can be rapidly collected and flow to the fan blades; the area of the air outlet is larger than that of the air inlet, and eddy can be prevented from being generated in the shell;
(5) the power supply method can reasonably select the specific power supply device and improve the running reliability of the vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic composition diagram of a power supply system according to an embodiment of the present invention;
fig. 2 is a schematic composition diagram of the power supply system according to the first embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the wind power plant according to the present invention;
FIG. 4 is a schematic view of the structure of the wind power plant according to the present invention;
FIG. 5 is a schematic view of the structure of the wind power plant according to the present invention;
FIG. 6 is a schematic view of the structure of the wind power plant according to the present invention;
FIG. 7 is a schematic partial cross-sectional view of a wind power plant according to the present invention;
FIG. 8 is a schematic structural diagram of a magnetic levitation generator according to the present invention;
FIG. 9 is a schematic view of an assembled structure of a plurality of wind power generation devices according to the present invention;
FIG. 10 is a schematic view of the construction of the base plate of the present invention;
FIG. 11 is a schematic view of a wind turbine according to the present invention disposed within a grid;
FIG. 12 is a schematic view of a wind turbine generator according to the present invention mounted on a radiator rail;
FIG. 13 is a flow chart of a method for supplying power according to an embodiment of the present invention;
FIG. 14 is a flow chart of a power supply method according to an embodiment of the invention;
FIG. 15 is a schematic diagram of the power supply system according to the second embodiment of the present invention;
FIG. 16 is a flow chart of a power supply method according to a second embodiment of the present invention;
FIG. 17 is a flow chart of a power supply method according to a second embodiment of the present invention;
fig. 18 is a schematic composition diagram of the power supply system according to the third embodiment of the present invention.
Wherein, the corresponding reference numbers in the figures are: 1-a wind power generation device; 101-a housing; 1011-air inlet; 10111-a first air inlet; 10112-a second air inlet; 1012-air outlet; 10121-a first air outlet; 10122-a second air outlet; 10123-a third air outlet; 10124 a fourth air outlet; 1013-windward side wall; 10131-a first side wall; 10132-a second side wall; 1014-leeward side wall; 10141-a third side wall; 10142-fourth side wall; 1015-current collecting plate; 102-fan blades; 1021-a blade; 1022-a fixed sleeve; 103-a rotating shaft; 104-a wind power generator; 1041-a rotor; 1042-a stator; 10421-a first stator; 10422 — a second stator; 10423-first groove; 10424-a second groove; 1043-magnetic steel; 1044-bearings; 105-a first scaffold; 106-a second scaffold; 2-a power battery; 3, a generator; 4-dc converter; 5-a storage battery; 6-electric equipment; 7-a power distribution unit; 8-a grid; 9-radiator lower beam; 10-a controller; 11-a first wind power plant; 12-a second wind power plant; 13-a third wind power plant; 14-a fourth wind power plant; 15-a base plate; 1501-air outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It should be apparent that the described embodiment is only one embodiment of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
In addition, unless expressly stated or limited otherwise, the terms "connected" and "coupled" and the like are intended to be inclusive and mean, for example, that they may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a power supply system for a vehicle, which includes a power battery 2, a generator 3, a dc-dc converter 4 and a plurality of wind power generation apparatuses 1,
the wind power generation device 1 is embedded in the windward part in the vehicle body, and the wind power generation device 1 is used for converting wind energy into electric energy; the power battery 2 is connected with the wind power generation device 1;
the direct current-direct current converter 4 is connected with the power battery 2, and the direct current-direct current converter 4 is used for supplying power to electric equipment 6 of the whole vehicle; the generator 3 is used for supplying power to the electric equipment 6 of the whole vehicle.
Further, the power supply system further comprises a storage battery 5, and the storage battery 5 is respectively connected with the dc-dc converter 4 and the generator 3.
Further, the power supply system further comprises a controller, and the controller is respectively connected with the wind power generation device 1, the power battery 2 and the generator 3; the controller is used for acquiring the residual voltage of the power battery 2 and the wind speed at the air inlet 1011 of the wind power generation device 1; judging whether the residual voltage of the power battery 2 is smaller than a first preset voltage or not, and judging whether the wind speed at the air inlet 1011 is smaller than a first preset wind speed or not; and controlling the generator 3 or the power battery 2 to supply power to the storage battery 5 and the electric equipment 6 according to the judgment result of the residual voltage of the power battery 2 and the wind speed at the air inlet 1011.
Further, as shown in fig. 11 and 12, a plurality of wind power generation devices 1 are arranged in parallel at one side of the radiator air outlet in the grille 8 at the front bumper of the vehicle and/or in the vehicle body; the plurality of wind power generation devices 1 are connected in parallel to the power battery 2, respectively.
Further, the power supply system further comprises a current processor, which is disposed between the wind power generator 104 and the power battery 2, and is capable of performing rectification, filtering, voltage stabilization and other processes on the electric energy generated by the wind power generator 104, and directly inputting the electric energy into the power battery 2.
Specifically, as shown in fig. 2, four wind power generation devices 1 are provided, including a first wind power generation device 11, a second wind power generation device 12, a third wind power generation device 13, and a fourth wind power generation device 14;
the first wind power generation device 11, the second wind power generation device 12, the third wind power generation device 13 and the fourth wind power generation device 14 are arranged in parallel in the grille 8 at the front bumper of the vehicle;
the first wind power generation device 11, the second wind power generation device 12, the third wind power generation device 13, and the fourth wind power generation device 14 are connected in parallel to the power battery 2, respectively.
The first wind power generation device 11, the second wind power generation device 12, the third wind power generation device 13 and the fourth wind power generation device 14 can convert wind energy into electric energy to be stored in the power battery 2; and the four wind power generation devices 1 are connected with the power battery 2 in parallel, if a single wind power generation device 1 has a problem, other wind power generation devices 1 can also work normally to charge the power battery 2, so that the normal work of the whole system is maintained.
Further, as shown in fig. 9, the first wind power generation device 9, the second wind power generation device 10, the third wind power generation device 11, and the fourth wind power generation device 12 are all fixed on a bottom plate, four air outlets 1301 are arranged on the bottom plate 13, and each wind power generation device is opposite to the corresponding air outlet.
Further, as shown in fig. 10, the bottom plate 15 is bent from a flat plate into a "Z" shape.
Further, the bottom plate 15 comprises a first mounting surface and a second mounting surface, and a plurality of air outlets are arranged; the air outlets are uniformly arranged on the first mounting surface, and the second mounting surface is connected with a radiator lower cross beam 9 of a vehicle (as shown in fig. 12).
The first wind turbine generator 11, the second wind turbine generator 12, the third wind turbine generator 13, and the fourth wind turbine generator 14 have the same structure and performance, and the structure and other features of the first wind turbine generator 11 will be described below by way of example, specifically as follows.
As shown in fig. 3 to 8, the first vehicular wind power generation apparatus 1 includes a housing 101, blades 102, a rotating shaft 103, and a wind power generator 104, wherein a rotor 1041 of the wind power generator 104 is connected to the blades 102 through the rotating shaft 103, and the blades 102 are disposed in the housing 101;
the shell 101 is provided with an air inlet 1011 and an air outlet 1012, and the area of the air outlet 1012 is not smaller than that of the air inlet 1011; the fluid flow direction at the air inlet 1011 is perpendicular to the axial direction of the rotating shaft 103, so that the fluid pushes the fan blades 102 in the radial direction.
It can be understood that the area of the air outlet 1012 is not smaller than the area of the air inlet 1011, so that the wind enters from the air inlet 1011 to push the fan blades 102 to rotate and then is discharged quickly, thereby preventing the wind from rotating in the housing 101 and generating resistance to reduce the efficiency. And the fluid flow direction at the air inlet 1011 is perpendicular to the axial direction of the rotating shaft 103, so that wind can blow on the fan blades 102 vertically, the contact area between the wind and the fan blades 102 is increased, the moment of pushing the fan blades 102 of the wind power generation device 1 by the wind is increased, and the starting wind speed is reduced. The following effects can be achieved: in the same size of fan blade 102, the force is greater; under the same force, the fan blades 102 can be reduced in size.
Further, the housing 101 is a cylindrical structure, and the air inlet 1011 and the air outlet 1012 are oppositely disposed on a side wall of the housing 101.
The housing 101 includes a windward side wall 1013 and a leeward side wall 1014, the air inlet 1011 is disposed at an upper half of the windward side wall 1013, and the air outlet 1012 is disposed at an upper half and/or a lower half of the leeward side wall 1014.
Further, as shown in fig. 7, the housing 101 is a cylindrical structure with openings at two ends, the housing 101 is surrounded by a first side wall 10131, a second side wall 10132, a third side wall 10141 and a fourth side wall 10142, the first side wall 10131 and the second side wall 10132 form the windward side wall 1013, and the third side wall 10141 and the fourth side wall 10142 form the leeward side wall 1014.
Further, the first sidewall 10131 is located at the upper half part of the windward sidewall 1013, and the second sidewall 10132 is located at the lower half part of the windward sidewall 1013; the third side wall 10141 is located at a lower half portion of the leeward side wall 1014, and the fourth side wall 10142 is located at an upper half portion of the leeward side wall 1014.
Further, the air inlet 1011 includes a first air inlet 10111 and a second air inlet 10112, and the air outlet 1012 includes a first air outlet 10121, a second air outlet 10122, a third air outlet 10123, and a fourth air outlet 10124; the total area of the air outlet 1012 is twice the total area of the air inlet 1011.
Further, the first air inlet 10111 and the second air inlet 10112 are disposed on the first side wall 10131; the first air outlet 10121 and the second air outlet 10122 are disposed on the fourth side wall 10142, and the third air outlet 10123 and the fourth air outlet 10124 are disposed on the third side wall 10141.
It can be understood that wind enters the housing 101 from the first wind inlet 10111 and the second wind inlet 10112, and pushes the fan blade 102 to rotate and then flow out of the first wind outlet 10121, the second wind outlet 10122, the third wind outlet 10123, and the fourth wind outlet 10124. The total area of the air outlet 1012 is larger than that of the air inlet 1011, so that the eddy resistance caused by the existence of wind in the shell 101 can be reduced; the wind is discharged from the rear, the arrangement mode of the original structure in the vehicle is not influenced, and the transformation cost is reduced.
Further, the shape of each air inlet 1011 and each air outlet 1012 may be square, circular or oval; preferably square.
Further, the size of the air inlet 1011 gradually decreases along the flow direction of the fluid.
Further, at least one current collecting plate 1015 is arranged in the air inlet 1011, and a first preset included angle is formed between the current collecting plate 1015 and the horizontal direction.
Further, as shown in fig. 6, the first air inlet 10111 is square, and the upper end and the two side edges of the first air inlet 10111 extend outwards to form a window, and the lower end of the first air inlet 101extends inwards to form the collecting plate 1015.
Further, as shown in fig. 7, the current collecting plate 1015 and the horizontal plane form a first preset included angle α.
Preferably, the first preset included angle α is 30 °.
It can be understood that the upper end of the first air inlet 10111 may extend outward along the horizontal direction, or may extend outward at an included angle with the horizontal direction; two side edges of the first air inlet 10111 can extend outwards along the vertical direction, and can also extend outwards with a certain included angle with the vertical direction; so that the first air inlet 10111 is in a window shape or has a tendency of gradually expanding outwards. No matter what the shape of the first air inlet 10111 is, in order to better collect wind in front of the automobile or in other places, wind energy is concentrated through the air inlet 1011 to push the fan blade 102 of the wind power generation device 1 to rotate. Similarly, the second air inlet 10112 and the first air inlet 10111 have similar structures.
Further, the fan blade 102 includes a plurality of blades 1021, and a projected area of the blades 1021 on a first reference surface is larger than a projected area on a second reference surface;
wherein the first reference surface is perpendicular to a flow direction of the fluid, and the second reference surface is parallel to the flow direction of the fluid.
Further, as shown in fig. 7, the fan blade 102 includes a fixing sleeve 1022 and a plurality of blades 1021, and the blades 1021 are distributed along the outer side wall of the fixing sleeve 1022 in the circumferential direction
Preferably, as shown in fig. 4, the blades 1021 are spirally distributed on the outer side wall of the fixing sleeve 1022. The projection area of the spiral blade 1021 on the first reference surface is larger than that on the second reference surface; wherein, the first reference plane is perpendicular to the flowing direction of the fluid, and here, may also refer to a plane on which the axis of the fixing sleeve 1022 is located; the second reference plane is parallel to the flow direction of the fluid, and herein, may also refer to a plane perpendicular to the axis of the fixing sleeve 1022. Therefore, the structure changes the traditional wind power generation device 1 from an axial wind inlet and outlet form to a radial wind inlet and outlet form, and the structure can reduce the radial dimension of the fan blades 102 as much as possible, thereby realizing the reduction of the whole dimension and facilitating the arrangement in a small space in a vehicle body.
In the above description, an embodiment of a housing 101 is given, as well as an embodiment of a fan blade 102 that can be used in conjunction with the housing 101. When the housing 101 and the fan blade 102 are used in cooperation, wind flows into the housing 101 from the first wind inlet 10111 and the second wind inlet 10112, so that the fan blade 102 is pushed to rotate along the radial direction of the fan blade 102, and the wind vertically blows to the blade 1021, which increases the contact area between the wind and the blade 1021. In addition, the blade 1021 of the fan blade 102 has a larger area in the radial direction than in the axial direction, so that the effective area of the blade subjected to wind thrust is increased; the moment of pushing the fan blades 102 of the wind power generation device 1 by wind is increased integrally, and the starting wind speed is reduced; the size of the fan blades 102 can be reduced, the wind power generation device 1 can be arranged in a vehicle, and a plurality of wind power generation devices 1 can be arranged in the vehicle, so that the generated power of a single wind power generation device 1 is not large, but the generated power of the plurality of wind power generation devices 1 is collected, and the power supply to the whole vehicle is realized. Wind pushes the fan blades 102 rotate, then the first air outlet 10121, the second air outlet 10122, the third air outlet 10123 and the fourth air outlet 10124 discharges, and the air outlet area is greater than the air inlet area and can avoid the production of vortex. The area of the outlet 1012 is close to the entire area of the leeward side wall 1014, and the air discharged therefrom can be dissipated to some extent to the rear side device even after being mounted in the vehicle.
Further, the air outlet 1012 may be disposed at a middle lower side of the leeward side wall 1014 to allow wind to be discharged from the middle lower side without causing a vortex. When it is fitted in a vehicle body, such as the underside of the grille 8 of a front bumper of a vehicle, the air inlet 1011 communicates with the grille 8 and the air outlet 1012 can communicate with the chassis, allowing wind to be discharged from the underside of the vehicle.
Further, the wind driven generator 104 is a magnetic suspension generator 3, the magnetic suspension generator 3 includes a rotor 1041, a stator 1042 and a plurality of magnetic steels 1043, a cavity is arranged in the stator 1042, and the plurality of magnetic steels 1043 are attached to the side wall of the cavity relatively; the rotor 1041 is sleeved on the rotating shaft 103, and the rotor 1041 is located between the magnetic steels 1043.
Further, as shown in fig. 8, the stator 1042 includes a first stator 10421 and a second stator 10422, a first groove 10423 is disposed in the first stator 10421, a second groove 10424 is disposed in the second stator 10422, and the first groove 10423 and the second groove 10424 form the cavity.
Further, magnetic steel 1043 is attached to the inner surface of the first groove 10423, and magnetic steel 1043 is attached to the inner surface of the second groove 10424; after the first stator 10421 and the second stator 10422 are connected, the magnetic steels 1043 in the first groove 10423 and the magnetic steels 1043 in the second groove 10424 are distributed relatively.
Further, the rotor 1041 is sleeved at one end of the rotating shaft 103, and the other end of the rotating shaft 103 is connected with the fan blade 102.
Further, a bearing 1044 is disposed between the rotating shaft 103 and the stator 1042.
The magnetic suspension generator 3 adopts a double-layer arrangement mode of the magnetic poles of the permanent magnets on the upper rotor 1041 and the lower rotor 1041, so that the radial size is reduced to the maximum extent under the condition of meeting the power requirement, and the overall size of the wind power generation device 1 is further reduced. And its magnetic resistance is little, has reduced the influence of start-up resistance to the start-up wind speed, and correspondingly, the start-up wind speed that needs is little, and under the same wind-force, rotor 1041 cuts the magnetic field faster, and the electric energy that produces is more.
The magnetic suspension generator 3 is combined with the shell 101 and the fan blades 102 for use, so that the overall size of the wind power generation device 1 can be designed within the length range of 200-210 mm, the width range of 150-160 mm and the height range of 120-130 mm; the wind power generation device increases the flow speed of inlet wind, increases the torque of wind pushing fan blades 102 of the wind power generation device 1, reduces the starting wind speed, and overcomes the magnetic resistance of the magnetic suspension generator 3 and the friction force of the rotor 1041 due to the increased wind power, so that the rotating speed of the fan blades 102 of the wind power generator 104 is higher, the rotor 1041 cuts a magnetic field faster, and more electric energy is generated.
It will be appreciated that, in addition, the overall dimensions of the wind power plant 1 can be designed within the dimensional ranges described above; therefore, the device is small in size and can be arranged in a plurality of spaces with gaps in the vehicle. On one hand, the layout of the whole vehicle device is not influenced, on the other hand, the device is convenient to be reduced and increased, and a certain charging electric quantity scale is formed.
Further, the wind power generation device 1 further includes a first bracket 105 and a second bracket 106, and the first bracket 105 and the second bracket 106 are respectively disposed on two sides of the housing 101 and are used for fixing the wind power generation device 1.
Further, as shown in fig. 3, the assembled wind power generator 1 includes, from one end to the other end, a first bracket 105, a housing 101, a magnetic levitation generator 3, and a second bracket 106, wherein the fan blades 102 are disposed in the housing 101.
Further, the wind power generator 1 may be integrally arranged in such a manner that the fan blades 102 and the magnetic levitation generator 3 are disposed in the casing 101, and the first bracket 105 and the second bracket 106 are disposed on two sides of the casing 101, respectively.
Furthermore, in order to facilitate installation and positioning, a plurality of installation holes are further formed in the outer side wall of the housing 101.
Specifically, as shown in fig. 3, the top and the middle-lower portion of the housing 101 are provided with mounting holes, and the mounting holes penetrate from one end of the outer side wall to the other end.
The above embodiment has been given in which the wind power generator 1 is installed in the grille 8 at the front bumper, and the wind power generator 1 is also installed at other windy places such as the side of the radiator in the vehicle body where air is discharged.
Correspondingly, the embodiment also provides a vehicle, and the vehicle comprises the power supply system.
Further, the vehicle further comprises an engine and a plurality of electric devices 6, wherein the plurality of electric devices 6 are respectively connected with the dc-dc converter 4;
the plurality of electric devices 6 are also connected with the generator 3, and the generator 3 is connected with the engine.
Wherein, the electric equipment 6 comprises electric equipment 6 such as a PTC, an air compressor, a cooling water pump, a steering oil pump and the like.
Correspondingly, the present embodiment further provides a power supply method, where the power supply method uses the above power supply system for a vehicle, as shown in fig. 13, and includes the following steps:
s110: acquiring the residual voltage of the power battery 2 and the wind speed at the air inlet 1011 of the wind power generation device 1;
s210: judging whether the residual voltage of the power battery 2 is smaller than a first preset voltage or not, and judging whether the wind speed at the air inlet 1011 is smaller than a first preset wind speed or not;
s310: and controlling the generator 3 or the power battery 2 to supply power to the storage battery 5 and the electric equipment 6 according to the judgment result of the residual voltage of the power battery 2 and the wind speed at the air inlet 1011.
Further, as shown in fig. 14, the step S310 includes:
s311: if the residual voltage of the power battery 2 is smaller than a first preset voltage and the wind speed at the air inlet 1011 is smaller than a first preset wind speed, controlling the generator 3 to supply power to the storage battery 5 and the electric equipment 6, and simultaneously cutting off the power supply of the power battery 2;
s312: if the residual voltage of the power battery 2 is smaller than a first preset voltage and the wind speed at the air inlet 1011 is larger than the first preset wind speed, controlling the generator 3 to supply power to the storage battery 5 and the electric equipment 6, and simultaneously cutting off the power supply of the power battery 2 and controlling the wind power generation device 1 to charge the power battery 2;
s313: if the residual voltage of the power battery 2 is greater than a first preset voltage and the wind speed at the air inlet 1011 is less than a first preset wind speed, controlling the power battery 2 to supply power to the storage battery 5 and the electric equipment 6;
s314: if the residual voltage of the power battery 2 is greater than a first preset voltage and the wind speed at the air inlet 1011 is greater than a first preset wind speed, the power battery 2 is controlled to supply power to the storage battery 5 and the electric equipment 6, and the wind power generation device 1 is controlled to charge the power battery 2.
It is understood that the first preset wind speed should be greater than the starting wind speed of the wind power generation device 1, so as to rotate the blades 102 of the wind power generator 104 to generate power; in the above power supply method, the first preset voltage is used as a reference standard for determining whether the power battery 2 supplies power, and in actual operation, the discharge condition of the power battery 2 may be replaced, which may be a single constraint condition or a composite constraint condition formed by a plurality of constraint conditions.
Example two:
the present embodiment provides a power supply system for a vehicle, as shown in fig. 15, the power supply system includes a power battery 2, a power distribution unit 7, a dc-dc converter 4, a storage battery 5, a generator 3, a controller, and at least one wind power generation apparatus 1;
the wind power generation device 1 is embedded in the windward part of the vehicle body, and the power battery 2 is connected with the wind power generation device 1;
the power distribution unit 7 is connected with the power battery 2, the direct current-direct current converter 4 is connected with the power distribution unit 7, and the storage battery 5 is connected with the direct current-direct current converter 4; the power distribution unit 7 is also connected with the generator 3;
the controller is respectively connected with the wind power generation device 1, the power battery 2 and the generator 3 and is used for acquiring the residual voltage of the power battery 2 and the wind speed at the air inlet 1011 of the wind power generation device 1; judging whether the residual voltage of the power battery 2 is smaller than a first preset voltage or not, and judging whether the wind speed at the air inlet 1011 is smaller than a first preset wind speed or not; and controlling the generator 3 or the power battery 2 to supply power to the power distribution unit 7 according to the judgment result of the residual voltage of the power battery 2 and the wind speed at the air inlet 1011.
Furthermore, a plurality of wind power generation devices 1 are arranged in parallel on the air outlet side of the radiator in the grille 8 at the front bumper of the vehicle and/or in the vehicle body; the plurality of wind power generation devices 1 are connected in parallel to the power battery 2, respectively.
Further, the power supply system further comprises a current processor, which is disposed between the wind power generator 104 and the power battery 2, and is capable of performing rectification, filtering, voltage stabilization and other processes on the electric energy generated by the wind power generator 104, and directly inputting the electric energy into the power battery 2.
As an implementation manner of the first embodiment, in this embodiment, when there are a plurality of wind power generation devices 1, the arrangement manner may be similar to that of the first embodiment, and the specific structure of the wind power generation device 1 may also be the same as that of the first embodiment, so that details are not repeated herein.
Correspondingly, the embodiment also provides a vehicle, and the vehicle comprises the power supply system.
Further, the vehicle further comprises an engine and a plurality of electric devices 6, and the plurality of electric devices 6 are respectively connected with the power distribution unit 7; the generator 3 is connected to the engine.
Wherein, the electric equipment 6 comprises electric equipment 6 such as a PTC, an air compressor, a cooling water pump, a steering oil pump and the like.
Correspondingly, the present embodiment further provides a power supply method, where the power supply method uses the above power supply system for a vehicle, as shown in fig. 16, and includes the following steps:
s120: acquiring the residual voltage of the power battery 2 and the wind speed at the air inlet 1011 of the wind power generation device 1;
s220: judging whether the residual voltage of the power battery 2 is smaller than a first preset voltage or not, and judging whether the wind speed at the air inlet 1011 is smaller than a first preset wind speed or not;
s320: and controlling the generator 3 or the power battery 2 to supply power to the power distribution unit 7 according to the judgment result of the residual voltage of the power battery 2 and the wind speed at the air inlet 1011.
Further, as shown in fig. 17, the step S320 includes:
s321: if the residual voltage of the power battery 2 is smaller than a first preset voltage and the wind speed at the air inlet 1011 is smaller than a first preset wind speed, controlling the generator 3 to supply power to the power distribution unit 7, and simultaneously cutting off the power supply of the power battery 2;
s321: if the residual voltage of the power battery 2 is less than a first preset voltage and the wind speed at the air inlet 1011 is greater than a first preset wind speed, controlling the generator 3 to supply power to the power distribution unit 7, and simultaneously cutting off the power supply of the power battery 2 and controlling the wind power generation device 1 to charge the power battery 2;
s323: if the residual voltage of the power battery 2 is greater than a first preset voltage and the wind speed at the air inlet 1011 is less than a first preset wind speed, controlling the power battery 2 to supply power to the power distribution unit 7;
s324: if the residual voltage of the power battery 2 is greater than a first preset voltage and the wind speed at the air inlet 1011 is greater than a first preset wind speed, the power battery 2 is controlled to supply power to the power distribution unit 7 and the wind power generation device 1 is controlled to charge the power battery 2.
It is understood that the first preset wind speed should be greater than the starting wind speed of the wind power generation device 1, so as to rotate the blades 102 of the wind power generator 104 to generate power; in the above power supply method, the first preset voltage is used as a reference standard for determining whether the power battery 2 supplies power, and in actual operation, the discharge condition of the power battery 2 may be replaced, which may be a single constraint condition or a composite constraint condition formed by a plurality of constraint conditions.
Example three:
in the first embodiment, since the output voltage of the power battery 2 is mostly 48V in the conventional vehicle; since the working voltage of the storage battery 5 and some equipment of the whole vehicle is 12V, the power battery 2 needs to be followed by the dc-dc converter 4 to reduce the voltage to 12V to supply power to the storage battery 5 or the electric equipment 6. And if the output voltage of the generator 3 connected with the engine is 12V, the power can be directly supplied to the storage battery 5 or the electric equipment 6 of the whole vehicle. In the second embodiment, the power distribution unit 7 distributes the electric quantity to the power battery 2.
If the operating voltage of the electric equipment of the whole vehicle is equal to the output voltage of the wind power generation device 1, as shown in fig. 18, the power supply system comprises a power battery 2, a generator 3 and a plurality of wind power generation devices 1,
the wind power generation device 1 is embedded in the windward part in the vehicle body, and the wind power generation device 1 is used for converting wind energy into electric energy; the power battery 2 is connected with the wind power generation device 1;
the power battery 2 and the wind power generation device 1 are respectively connected with electric equipment of the whole vehicle and respectively supply power to the electric equipment.
Furthermore, a current stabilizing device is arranged at the output end of the wind power generation device.
It can be understood that, in the above three embodiments, the main difference lies in different ways of distributing the electric quantity, one is directly connected to the electric equipment 6 of the whole vehicle through the dc-dc converter, one is distributed through the power distribution unit 7, and the other is directly connected to the output of the wind power generation device 1. That is, the wind turbine generator 1 has versatility regardless of the power supply system. Thus, the wind power plant 1 described in the different embodiments can be interchanged. For different types of power supply systems, the power supply method needs to be adjusted correspondingly, but the general idea is consistent.
In the above-described embodiment, the wind turbine generators 1 are provided in plural, which is based on the conventional theoretical technique and has a limitation in size, and the electric energy of a single wind turbine generator 1 is small, and the fuel efficiency reduction effect is not significant. However, this does not exclude that only a single wind power generation apparatus 1 may be used for power supply when the amount of power supply of a single wind power generation apparatus 1 meets the demand.
The DC-DC converter is a DC/DC converter, and the power distribution unit is a PDU, which are terms in the industry without any doubt.
And, according to the corresponding design requirements, the wind power generation device 1 may also be specifically an excitation eddy current wind power generator, an excitation axial flow wind power generator and a magnetic suspension axial flow wind power generator.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (9)

1. The power supply system for the vehicle is characterized by comprising a power battery (2), a generator (3), a converter (4) and a plurality of wind power generation devices (1), wherein the wind power generation devices (1) are embedded in the windward part of a vehicle body, and the wind power generation devices (1) are used for converting wind energy into electric energy; the power battery (2) is connected with the wind power generation device (1); the converter (4) is connected with the power battery (2), and the converter (4) is used for converting the output voltage of the power battery (2) to supply power to electric equipment (6) of the whole vehicle; the generator (3) is used for supplying power to the electric equipment (6) of the whole vehicle;
the wind power generation device (1) comprises a shell (101), fan blades (102), a rotating shaft (103) and a wind driven generator (104), wherein a rotor (1041) of the wind driven generator (104) is connected with the fan blades (102) through the rotating shaft (103), and the fan blades (102) are arranged in the shell (101); the shell (101) is provided with an air inlet (1011) and an air outlet (1012), and the area of the air outlet (1012) is not smaller than that of the air inlet (1011); the flow direction of the fluid at the air inlet (1011) is perpendicular to the axial direction of the rotating shaft (103), so that the fluid pushes the fan blades (102) along the radial direction; the wind driven generator (104) is a magnetic suspension generator (3);
the wind power generation devices (1) are fixed on a bottom plate (15) of a vehicle body, and the air inlet (1011) is communicated with a grid (8) of a front bumper of the vehicle; the bottom plate (15) comprises a first mounting surface and a second mounting surface, a plurality of air outlets (1501) are uniformly formed in the first mounting surface, and the plurality of wind power generation devices (1) correspond to the plurality of air outlets (1501) one by one; the second mounting surface is connected with a lower radiator cross beam (9) of the vehicle body;
the fan blade (102) comprises a fixed sleeve (1022) and a plurality of blades (1021), wherein the blades (1021) are spirally distributed on the outer side wall of the fixed sleeve (1022); the projected area of the blade (1021) on the first reference surface is larger than the projected area on the second reference surface; wherein the first reference surface is perpendicular to a flow direction of the fluid, and the second reference surface is parallel to the flow direction of the fluid.
2. The vehicle power supply system according to claim 1, further comprising a battery (5), wherein the battery (5) is connected to the converter (4) and the generator (3), respectively.
3. The vehicle power supply system according to claim 2, further comprising a controller connected to the wind power generation device (1), the power battery (2), and the generator (3), respectively.
4. The vehicular power supply system according to claim 1, wherein a plurality of the wind power generation devices (1) are arranged in parallel on a side of a radiator outlet air in a grille (8) at a front bumper of a vehicle and/or in a vehicle body; the wind power generation devices (1) are respectively connected with the power battery (2) in parallel.
5. The vehicular electric power supply system according to claim 1, wherein the size of the air inlet (1011) is gradually reduced along the flow direction of the fluid.
6. The vehicle power supply system according to claim 1, wherein the magnetic levitation generator (3) comprises a rotor (1041), a stator (1042) and a plurality of magnetic steels (1043), a cavity is arranged in the stator (1042), and the plurality of magnetic steels (1043) are attached to a side wall of the cavity relatively; the rotor (1041) is sleeved on the rotating shaft (103), and the rotor (1041) is located between the magnetic steels (1043).
7. The power supply system for the vehicle is characterized by comprising a power battery (2), a generator (3) and a plurality of wind power generation devices (1), wherein the wind power generation devices (1) are embedded in the windward part of a vehicle body, and the wind power generation devices (1) are used for converting wind energy into electric energy; the power battery (2) is connected with the wind power generation device (1); the power battery (2) and the wind power generation device (1) are respectively connected with electric equipment of the whole vehicle and respectively supply power to the electric equipment;
the wind power generation device (1) comprises a shell (101), fan blades (102), a rotating shaft (103) and a wind driven generator (104), wherein a rotor (1041) of the wind driven generator (104) is connected with the fan blades (102) through the rotating shaft (103), and the fan blades (102) are arranged in the shell (101); the shell (101) is provided with an air inlet (1011) and an air outlet (1012), and the area of the air outlet (1012) is not smaller than that of the air inlet (1011); the flow direction of the fluid at the air inlet (1011) is perpendicular to the axial direction of the rotating shaft (103), so that the fluid pushes the fan blades (102) along the radial direction; the wind driven generator (104) is a magnetic suspension generator (3);
the wind power generation devices (1) are fixed on a bottom plate (15) of a vehicle body, the bottom plate (15) comprises a first mounting surface and a second mounting surface, a plurality of air outlets (1501) are uniformly arranged on the first mounting surface, and the wind power generation devices (1) correspond to the air outlets (1501) one by one; the second mounting surface is connected with a lower radiator cross beam (9) of the vehicle body;
the fan blade (102) comprises a fixed sleeve (1022) and a plurality of blades (1021), wherein the blades (1021) are spirally distributed on the outer side wall of the fixed sleeve (1022); the projected area of the blade (1021) on the first reference surface is larger than the projected area on the second reference surface; wherein the first reference surface is perpendicular to a flow direction of the fluid, and the second reference surface is parallel to the flow direction of the fluid.
8. A vehicle, characterized in that the vehicle comprises the vehicular power supply system according to any one of claims 1-6, the vehicle further comprises an engine and a plurality of electric devices (6), and the plurality of electric devices (6) are respectively connected with the converter (4); the plurality of electric equipment (6) are also connected with the generator (3), and the generator (3) is connected with the engine.
9. A power supply method using the power supply system for a vehicle of any one of claims 1 to 7, comprising:
acquiring the residual voltage of the power battery (2) and the wind speed at an air inlet (1011) of the wind power generation device (1);
judging whether the residual voltage of the power battery (2) is smaller than a first preset voltage or not, and judging whether the wind speed at the air inlet (1011) is smaller than a first preset wind speed or not;
if the residual voltage of the power battery (2) is smaller than a first preset voltage and the wind speed at the air inlet (1011) is smaller than a first preset wind speed, controlling the generator (3) to supply power to the storage battery (5) and the electric equipment (6), and simultaneously cutting off the power supply of the power battery (2);
if the residual voltage of the power battery (2) is smaller than a first preset voltage and the wind speed at the air inlet (1011) is larger than a first preset wind speed, controlling the generator (3) to supply power to the storage battery (5) and the electric equipment (6), and simultaneously cutting off the power supply of the power battery (2) and controlling the wind power generation device (1) to charge the power battery (2);
if the residual voltage of the power battery (2) is greater than a first preset voltage and the wind speed at the air inlet (1011) is less than a first preset wind speed, controlling the power battery (2) to supply power to the storage battery (5) and the electric equipment (6);
if the residual voltage of the power battery (2) is larger than a first preset voltage and the wind speed at the air inlet (1011) is larger than a first preset wind speed, the power battery (2) is controlled to supply power to the storage battery (5) and the electric equipment (6) and the wind power generation device (1) is controlled to charge the power battery (2).
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