CN112977107A - Vehicle charging system and stereo garage - Google Patents

Vehicle charging system and stereo garage Download PDF

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Publication number
CN112977107A
CN112977107A CN202110523885.3A CN202110523885A CN112977107A CN 112977107 A CN112977107 A CN 112977107A CN 202110523885 A CN202110523885 A CN 202110523885A CN 112977107 A CN112977107 A CN 112977107A
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CN
China
Prior art keywords
charging
power supply
transmitting
receiving
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110523885.3A
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Chinese (zh)
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CN112977107B (en
Inventor
王哲
陆钧
贺凡波
葛俊杰
马俊超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Yougan Technology Co.,Ltd.
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Beijing Invispower Co Ltd
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Priority to CN202110523885.3A priority Critical patent/CN112977107B/en
Publication of CN112977107A publication Critical patent/CN112977107A/en
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Publication of CN112977107B publication Critical patent/CN112977107B/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
    • B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/37—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles using optical position determination, e.g. using cameras
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/66—Data transfer between charging stations and vehicles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/08—Garages for many vehicles
    • E04H6/12—Garages for many vehicles with mechanical means for shifting or lifting vehicles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T90/12—Electric charging stations
    • 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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

The invention discloses a vehicle charging system and a stereo garage, wherein the vehicle charging system is provided with a power supply module and a charging module, and the power supply module is provided with: the power supply power component and the transmitting component are communicated; the charging module has: the receiving component, the charging power component and the charger are sequentially communicated; when the receiving assembly is coupled with the transmitting assembly, wireless energy transmission is carried out; wherein the charging power component has at least: the charging rectifier converter, the capacitor bank and the direct current converter are sequentially communicated, and the direct current converter is communicated with the charger. According to the vehicle charging system and the stereo garage, stable and safe power supply can be realized, and meanwhile, a wireless power supply mode is adopted between the power supply module and the charging module, so that potential safety hazards are reduced, and equipment loss is reduced.

Description

Vehicle charging system and stereo garage
Technical Field
The invention relates to the field of electric automobile charging, in particular to a vehicle charging system and a stereo garage.
Background
With the popularization and application of new energy electric vehicles using batteries as power sources, the construction of electric vehicle charging infrastructures needs to be accelerated. The stereo garage becomes an important way and development direction for charging infrastructure construction due to the characteristics of saving occupied area, being convenient to manage and the like.
At present stereo garage can provide the function of charging very seldom, because carry the sweep and have the displacement, can't guarantee charging cable's arranging, cause the winding of cable easily, influence the use.
It has also been proposed to use conductive tracks to make the cable conductive, but this is prone to wear and may affect the safety of the circuit during sliding.
Disclosure of Invention
The invention provides a vehicle charging system and a stereo garage, which can provide a stable and safe charging function.
The vehicle charging system is provided with a power supply module and a charging module, wherein the power supply module is provided with: the power supply power component and the transmitting component are communicated; the charging module has: the receiving component, the charging power component and the charger are sequentially communicated; when the receiving assembly is coupled with the transmitting assembly, wireless energy transmission is carried out; wherein the charging power component has at least: the charging rectifier converter, the capacitor bank and the direct current converter are sequentially communicated, and the direct current converter is communicated with the charger.
Preferably, the transmitting assembly has a transmitting resonant network, a transmitting plate and a transmitting coil, and the transmitting coil is fixedly arranged on the transmitting plate and is communicated with the transmitting resonant network; the receiving assembly is provided with a receiving resonant network, a receiving plate and a receiving coil, and the receiving coil is fixedly arranged on the receiving plate and is communicated with the receiving resonant network; and the alignment judgment device is arranged on the transmitting plate and/or the receiving plate to judge the position relationship between the transmitting coil and the receiving coil.
Preferably, the alignment judging device includes a magnetic switch and a magnet, wherein,
the magnetic switch is fixedly arranged on the transmitting plate, the magnet is fixedly arranged on the receiving plate, and the positions of the magnetic switch and the magnet correspond to each other.
Preferably, the alignment judging device includes a magnetic switch and a magnet, wherein the magnetic switch includes a first magnetic switch, a second magnetic switch, a third magnetic switch and a fourth magnetic switch; are respectively arranged on the periphery of the transmitting plate; the magnets are arranged around the receiving plate corresponding to the arrangement mode of the magnetic switches.
Preferably, the method further comprises the following steps: and the power distribution module is communicated with the power supply module.
Preferably, the power supply module further includes: a power supply control component and a power supply communication component; the charging module further has: a charging control component and a charging communication component; and the power supply communication assembly and the charging communication assembly are in signal transmission.
The invention also provides a stereo garage, comprising: the vehicle charging system comprises a frame, a vehicle carrying plate and the vehicle charging system; the vehicle carrying plate is used for parking vehicles and is movably arranged relative to the frame; the power supply module is fixedly arranged relative to the frame; the charging module is arranged on the vehicle carrying plate.
According to the vehicle charging system and the stereo garage, stable and safe power supply can be realized, and meanwhile, a wireless power supply mode is adopted between the power supply module and the charging module, so that potential safety hazards are reduced, and equipment loss is reduced.
Drawings
FIG. 1 is a schematic diagram of a vehicle charging system application of the present invention;
FIG. 2 is a schematic diagram of a vehicle charging system according to the present invention;
FIG. 3 is a circuit diagram showing the construction of the vehicle charging system according to the present invention;
FIG. 4 is a schematic view of a transmitter board in the vehicle charging system of the present invention;
fig. 5 is a schematic view of the stereo garage of the present invention.
Reference numerals:
a power supply module 1; a charging module 2; a power distribution module 3; a frame 4; a vehicle carrying board 5; a power supply power component 11; a transmission assembly 12; a power supply control assembly 13; a power supply communication component 14; a charger 20; a charging power component 21; a receiving component 22; a charging control unit 23; a charging communication component 24; a power supply rectification converter 111; an inverter 112; a transmitting resonant network 121; a transmitting plate 122; a charging rectifying converter 211; a capacitor bank 212; a direct current converter 213; a receive resonant network 221; a receiving plate 222; a transmitting coil LT; a reception coil LR; a first magnetic switch K1; a second magnetic switch K2; the third magnetic switch K3; a fourth magnetic switch K4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention provides a vehicle charging system and a stereo garage using the same. For ease of understanding, the vehicle charging system and stereo garage may be described in conjunction hereinafter.
Referring to fig. 1, 2 and 3, the vehicle charging system has two major parts, a power supply module 1 and a charging module 2, and in some embodiments, may also have a power distribution module 3. When being applied to stereo garage, power module 1 and distribution module 3 are fixed the setting, can fix the setting on stereo garage's frame 4, also can be directly set up subaerial, and its purpose can be to the power supply of module 2 that charges, and the restriction is not done to specific position of setting.
Operation of the vehicle charging system referring to fig. 1, the power supply module 1 wirelessly supplies power to the receiving module 22 of the charging module 2 through the transmitting module 12, and then the charging module 2 charges the vehicle through the charger 20.
Referring to fig. 2, the power supply module 1 has: the power supply component 11 and the transmitting component 12 are communicated; the charging module 2 has: a receiving component 22, a charging power component 21 and a charger 20 which are communicated in sequence. Besides, the power supply module 1 may also have a power supply control component 13 for implementing control and a power supply communication component 14 for communication; the charging module 2 may also have a charging control component 23 for implementing control and a charging communication component 24 for communication.
Referring to fig. 3, the power supply power assembly 11 includes a power supply rectifying converter 111 and an inverter 112, and the power supply rectifying converter 111 obtains ac power, which can be obtained directly from the power grid or obtained through the power distribution module 3. The power supply rectification converter 111 rectifies the alternating current to direct current. The inverter 112 is connected to the rectifier converter 111, and inverts the dc power into ac power (high-frequency ac power) that meets the power supply requirement, and supplies the ac power to the transmitter module 12.
The transmitting assembly 12 has at least a resonant network 121, a transmitting plate 122 and a transmitting coil LT, which is arranged on the transmitting plate 122. The transmitting resonant network 121 adopts a new topology, a T-shaped structure (described in detail below), and the resonant network may be in other forms. The above-described transmitting board 122 may be understood as a base for fixing the transmitting coil LT and other components.
The receiving module 22 has a receiving resonant network 221, a receiving board 222 and a receiving coil LR, which is fixedly disposed on the receiving board 222. The receiving resonant network 221 is a series structure, and the resonant network may be of other forms. The receiving plate 22 may be understood as a base for fixing the receiving coil LR and other components.
When the receiving module 22 is coupled to the transmitting module 12, that is, the receiving coil LR and the transmitting coil LT are in a coupled state, the high-frequency alternating current input to the transmitting coil LT generates an alternating magnetic field, the receiving coil LR induces the magnetic field through coupling to generate an induced alternating current, and then the transmitting coil LT transmits the electric energy to the receiving coil LR in a wireless manner.
The receiving module 2 continues to deliver the electric energy to the charging power module 21, and the charging power module 21 at least has: the charging rectifier converter 211 rectifies alternating current into direct current, the direct current is transmitted to the direct current converter 213 through the capacitor bank 212, and the direct current converter 213 modulates the direct current into appropriate electrical parameters and transmits the electrical parameters to the charger 20.
As is apparent from the above description, the power supply module 1 and the charging module 2 transmit power wirelessly. Different from wireless charging for the automobile, when the automobile is charged wirelessly, the transmitting end on the ground supplies power to the vehicle-mounted receiving end, and the automobile is charged wirelessly directly. The transmitting coil LT and the receiving coil LR mentioned in this application do not charge the vehicle directly, but in a wireless charging manner, the charger 20 can output the electric energy for charging the vehicle. The charger 20 is generally referred to as a charger, so that even if the vehicle is a general electric vehicle without a wireless charging function, the charging can be performed using the present system.
However, the present application is not limited to the specific form of the charger 20, for example, a charger conforming to the GB/T20234 standard, or some special charger may be used in the present application, and even the charger 20 may be a wireless charging device, which is used as a transmitting terminal for supplying power to a vehicle having a wireless charging function. That is, the function of the charger 20 is to charge the automobile, and the specific form is not limited in this application. The charger 20 is specifically a wired or wireless charger, and the application is not limited thereto.
Through this kind of setting, avoided the cable to need the constraint of shift position to the parking stall, through wireless power transmission's mode, also there is not physical friction, reduced wearing and tearing or electrode sparking, electric leakage scheduling problem that the contact transmission probably appears.
Taking a stereo garage as an example, an electric vehicle stops at a vehicle carrying board 5 of the stereo garage (i.e. a parking space capable of moving in the stereo garage), and if charging is needed, a vehicle owner or a worker inserts a charger 20 into a charging socket of the electric vehicle. The vehicle carrying plate 5 drives the electric vehicle to move to a specified position through a moving system of the stereo garage, and meanwhile, the receiving assembly 22 is aligned with the transmitting assembly 12 to achieve coupling. After the vehicle charging system is confirmed, charging may begin.
When a vehicle needs to be taken out, the vehicle can be moved to a designated position by the moving system, the parking and the vehicle taking of the general three-dimensional garage are all in fixed positions, generally in the most marginal parking spaces of one floor, and the parked vehicle can be rotated to different positions by the moving system, so that the positions for parking and vehicle taking are free.
The relative movement of the transmitter assembly 12 and the receiver assembly 22 occurs as the parked and removed vehicles, and the vehicles in the garage, may be moving from time to time. Even if there is no positional movement halfway, the transmitting coil LT and the receiving coil LR have a state of slow alignment when wireless charging is started.
In the moving process of the vehicle carrying board 5, the coupling coefficient between the transmitting coil LT and the receiving coil LR is changed continuously. Due to the change of the coupling coefficient, the output power of the system will change accordingly. The capacitor bank 212 can reduce the effect of power variation on the whole system.
Besides, the alignment of the transmitting coil LT and the receiving coil LR can be judged by the alignment judgment device, and the output of the electric energy can be regulated in a targeted manner. A general alignment determining device is provided on the transmitting board 122 and/or the receiving board 222. For example, by a camera, an aligned image is acquired and judged. If the determination is made using a camera, a camera may be provided on one of the transmitting plate 122 and the receiving plate 222.
Preferably, the determination is performed using a magnetic switch and a magnet. The magnetic switch is fixedly arranged on the transmitting plate 122, the magnet is fixedly arranged on the receiving plate 222, and the position of the magnetic switch corresponds to that of the magnet. Of course, the reverse arrangement is also possible, with the magnet fixedly arranged on the transmitter board 122 and the magnetic switch fixedly arranged on the receiver board 22. For convenience of explanation, the following description is given by way of example only.
The magnetic switches comprise a first magnetic switch K1, a second magnetic switch K2, a third magnetic switch K3 and a fourth magnetic switch K4; are respectively arranged around the emitting plate 122; the magnets are disposed around the receiving plate 222 corresponding to the arrangement of the magnetic switches. As shown in fig. 4, the magnetic switches are bar-shaped, and four magnetic switches are combined into a frame shape. This is just one embodiment, and the magnetic switches can also be arranged at four corners, and the specific form can be adjusted according to the actual situation.
As shown in fig. 4, the first magnetic switch K1, the second magnetic switch K2, the third magnetic switch K3 and the fourth magnetic switch K4 are installed on the upper, lower, left and right sides of the transmitter plate 122, and four sets of magnets are installed on the receiver plate 222 at positions corresponding to the upper, lower, left and right sides thereof to form a magnet row. When the transmitter plate 122 and receiver plate 222 are aligned, the four sets of magnetic switches are also diametrically opposed to the opposing sets of magnets. The magnetic switch is composed of magnetic sensors and switches, when the magnet row on the receiving board 222 is opposite to one or more magnetic sensors on the transmitting board 122, the magnetic field intensity sensed by the magnetic sensors exceeds a set sensitive boundary value, and the magnetic sensors control the corresponding switch contacts to be switched on.
As shown in the figure, the magnetic switches are arranged in a strip shape, and one magnetic switch may have a plurality of magnetic sensors arranged and distributed.
When the vehicle carrying plate 5 is moved by the parking system, the receiving plate 222 on the vehicle carrying plate 5 is aligned with the launching plate 122 step by step, if the vehicle carrying plate 5 moves in a traversing manner, when the receiving plate 222 moves to the edge of the launching plate 122, one or more magnetic sensors of the first magnetic switch K1 and the second magnetic switch K2 of the launching plate 122 sense the magnetic field of the magnet row, and the magnetic sensors control the first magnetic switch K1 and the second magnetic switch K2 to be switched on. After the first magnetic switch K1 and the second magnetic switch K2 are turned on, the power supply communication component 14 transmits the communication signal under the control of the power supply control component 13, and when the signal interaction is performed, if a reply charging demand instruction is received, the power supply module 1 will slowly increase the output energy.
When the vehicle carrying board 5 continues to translate until the receiving coil LR and the transmitting coil LT are completely aligned, the third magnetic switch K3 and the fourth magnetic switch K4 are both turned on, and the magnetic field strength sensed by all the magnetic sensors in the four magnetic switches exceeds a set sensitive boundary value, so that the power supply module 1 can complete a normal charging process. When the vehicle carrying plate transversely moves away from the vehicle carrying plate, the third magnetic switch K3 and the fourth magnetic switch K4 are switched off, the power supply module 1 slowly reduces the output energy, and the output is completely stopped after the first magnetic switch K1 and the second magnetic switch K2 are switched off. When the vehicle carrying plate 5 is in lifting motion, the control process is similar to the transverse moving process, the vehicle carrying plate 5 to be carried moves up and down, the receiving coil LR and the transmitting coil LT are gradually close to each other, the third magnetic switch K3 and the fourth magnetic switch K4 are switched on, and the power supply unit 1 slowly increases the output energy. When the receiving coil LR and the transmitting coil LT are completely aligned, all the four magnetic switches are turned on, and the power supply module 1 supplies power normally to perform a charging process. When the vehicle carrying board 5 ascends and descends, the first magnetic switch K1 and the second magnetic switch K2 are switched off, the power supply unit 1 slowly reduces the output energy until the third magnetic switch K3 and the fourth magnetic switch K4 are switched off and then stops outputting.
In other embodiments, more magnetic switches may be provided so that the degree of alignment of the receiver coil LR and the transmitter coil LT can be determined more accurately.
The magnet may be a permanent magnet or an electromagnet, or other components capable of generating a uniform magnetic field.
Through the capacitor bank 212 and the on-off combination of the magnetic switch in the dynamic change process, the stability of the system work is ensured. The capacitor bank 212 absorbs the variable power flow obtained from the receiving coil LR, temporarily stores the variable power flow in the capacitor bank 212, and is controlled by the charging control unit 23 to transfer energy to the battery of the electric vehicle through the charger 20 at an appropriate time, so as to alleviate the impact caused by the change of the coupling coefficient. Through the design, in the moving process of the vehicle carrying plate 5, the output parameters can not fluctuate violently, the stability of system operation is ensured, and the power supply unit 1 can be effectively protected. Meanwhile, all the power supply units 1 do not need to be started and stopped in a centralized manner, so that impact on a power grid is avoided. The reference to "all power supply units 1" is to say that in the stereo garage, the power supply unit 1 has more than one, and generally, the vehicle carrying board 5 moves to any fixed position, and there is a corresponding power supply unit 1. That is, if there are n car carrying boards 5 in a stereo garage, there are n power supply units 1 and n charging units 2.
Next, other configurations of the power supply unit 1 and the charging unit 2 will be described.
The transmit resonant network 121 in the transmit assembly 12 includes a coil inductance and typically adds a compensation capacitance to cancel reactive power out. In the prior art, common resonant network topologies are classified into series-series (SS type), series-parallel (SP type), parallel-series (PS type), and parallel-parallel (PP type) according to the structures of inductors and capacitors. The disadvantage of this structure is that when the coupling coefficient or load changes, a strong oscillation of the coil current is caused and the electronic device is likely to malfunction due to overvoltage or overcurrent. When being applied to stereo garage, probably because of the removal of year sweep 5, no-load problem appears, and this kind of topological structure has the risk.
In the present application, the transmission resonant network 121 adopts a new topology, i.e. a T-type structure, that is: the transmission resonant network 121 includes: the first compensation capacitor C11, the second compensation capacitor C12, the third compensation capacitor C13, the first compensation inductor L11 and the second compensation inductor L12. The first compensation inductor L11, the first compensation capacitor C11, the transmitting coil LT, the second compensation capacitor C12 and the second compensation inductor L12 are sequentially connected, one end of the third compensation capacitor C13 is connected between the first compensation inductor L11 and the first compensation capacitor C11, and the other end of the third compensation capacitor C13 is connected between the second compensation capacitor C12 and the second compensation inductor L12.
The receiving resonant network 221 is a series structure, and two ends of the receiving coil inductor LR are connected in series with the fourth compensation capacitor C21 and the fifth compensation capacitor C22.
When the system is in a resonance state, neglecting the internal resistances of all inductors and capacitors, and aiming at the current I of the transmitting coil LT1The following formula can be taken:
Figure 346066DEST_PATH_IMAGE001
wherein U is1Is output by inverter 112Fundamental voltage amplitude of, omega0Is the system switching frequency. L is11Is the inductance value, L, of the first compensation inductor L11 21Is the inductance value of the second compensation inductor L21. J is represented as a complex number.
Voltage U to the output port of the receiving resonant network 2212The following formula can be taken:
Figure 200889DEST_PATH_IMAGE002
where M is the mutual inductance between the transmit coil LT and the receive coil LR.
From the above formula, the transmitting coil current I1Is constant, the power supply unit 1 is a constant current source independent of the load (independent of the charging module 2), and the current in the transmitting coil LT is substantially unaffected by mutual inductance variations and load disconnection.
From the above formula, the voltage U at the output port of the receiving resonant network 2212The resonance network is in direct proportion to the mutual inductance M, when the transmitting coil LT and the receiving coil LR are opposite to each other and the positions are kept unchanged, the mutual inductance is unchanged, namely when the four magnetic switches are all switched on, the resonance network has the characteristic of constant voltage output, namely, the resonance network is a constant voltage source, so that the stability of output parameters including current and voltage in the charging process of the electric automobile can be ensured, and the resonance network has the respective advantages of series resonance and parallel resonance.
When the electric vehicle changes the charging demand parameter, in order to respond to the demand and realize closed-loop power regulation, a dc converter 213 is further provided at the end of the charging unit 2, and a commonly used circuit includes buck, boost and their derivatives, and performs boost or buck regulation according to the charging demand voltage through the dc converter.
The invention also discloses a stereo garage, which is provided with a frame 4 and a vehicle carrying plate 5 as shown in fig. 5, wherein the vehicle charging system is also integrated in the stereo garage. The vehicle carrying plate 5 is used for parking a vehicle, and the vehicle carrying plate 5 is movably arranged relative to the frame 4, for example, a roller mechanism and a traction cable are used in fig. 5 to pull the vehicle carrying plate 5 to move. The power supply module 1 is fixedly arranged relative to the frame 4. For example, the vehicle carrying board 5 may be directly arranged on the frame 4 or on the ground, and these requirements are determined according to actual requirements and possible moving positions of the vehicle carrying boards 5. The charging module 2 is arranged on the vehicle carrying plate 5. The top surface of the vehicle carrying plate 5 can be the bottom surface.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims (7)

1. A vehicle charging system having a power supply module (1) and a charging module (2),
the power supply module (1) comprises: the power supply component (11) and the transmitting component (12) are communicated;
the charging module (2) has: the receiving component (22), the charging power component (21) and the charger (20) are communicated in sequence;
the receiving assembly (22) is coupled with the transmitting assembly (12) for wireless energy transmission;
wherein the charging power assembly (21) has at least: the charging rectifying converter (211), the capacitor bank (212) and the direct current converter (213) are sequentially communicated, and the direct current converter (213) is communicated with the charger (20).
2. The vehicle charging system according to claim 1,
the transmitting component (12) is provided with a transmitting resonant network (121), a transmitting plate (122) and a transmitting coil (LT), and the transmitting coil (LT) is fixedly arranged on the transmitting plate (122) and is communicated with the transmitting resonant network (121);
the receiving assembly (22) is provided with a receiving resonant network (221), a receiving plate (222) and a receiving coil (LR), wherein the receiving coil (LR) is fixedly arranged on the receiving plate (222) and is communicated with the receiving resonant network (221);
an alignment judgment device provided on the transmission board (122) and/or the reception board (222) to judge a positional relationship between the transmission coil (LT) and the reception coil (LR).
3. The vehicle charging system according to claim 2,
the alignment judging device includes a magnetic switch and a magnet, wherein,
the magnetic switch is fixedly arranged on the transmitting plate (122), the magnet is fixedly arranged on the receiving plate (222), and the positions of the magnetic switch and the magnet correspond to each other.
4. The vehicle charging system according to claim 2 or 3,
the alignment judging device includes a magnetic switch and a magnet, wherein,
the magnetic switches comprise a first magnetic switch (K1), a second magnetic switch (K2), a third magnetic switch (K3) and a fourth magnetic switch (K4); are respectively arranged at the periphery of the transmitting plate (122);
the magnets are arranged around the receiving plate (222) corresponding to the arrangement mode of the magnetic switches.
5. The vehicle charging system according to claim 1,
further comprising: a power distribution module (3) in communication with the power supply module (1).
6. The vehicle charging system according to claim 1,
the power supply module (1) further comprises: a power supply control component (13) and a power supply communication component (14);
the charging module (2) further comprises: a charging control component (23) and a charging communication component (24);
the power supply communication assembly (14) and the charging communication assembly (24) are in signal transmission.
7. A stereo garage, comprising:
-a frame (4), a vehicle carrier board (5) and a vehicle charging system according to any of claims 1-6;
the vehicle carrying plate (5) is used for parking vehicles, and the vehicle carrying plate (5) is movably arranged relative to the frame (4);
the power supply module (1) is fixedly arranged relative to the frame (4);
the charging module (2) is arranged on the vehicle carrying plate (5).
CN202110523885.3A 2021-05-13 2021-05-13 Vehicle charging system and stereo garage Active CN112977107B (en)

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JP2011026925A (en) * 2009-07-29 2011-02-10 Shinmaywa Industries Ltd Charging pallet and mechanical parking system equipped with the same
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JP2013194498A (en) * 2012-03-23 2013-09-30 Hitachi Cable Ltd Vehicle charging device
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CN205577547U (en) * 2016-02-24 2016-09-14 中兴新能源汽车有限责任公司 A stereo garage for charge
CN106374634A (en) * 2016-09-27 2017-02-01 哈尔滨理工大学 Novel electric vehicle wireless charging apparatus
CN207388929U (en) * 2017-09-04 2018-05-22 深圳威兹新能源科技有限公司 A kind of wireless charging device for multi-storied garage
CN111817451A (en) * 2020-09-07 2020-10-23 北京有感科技有限责任公司 Wireless charging system
CN112737038A (en) * 2020-12-29 2021-04-30 东北林业大学 Secondary side staggered parallel Buck type wireless charging system based on magnetic integration technology

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011026925A (en) * 2009-07-29 2011-02-10 Shinmaywa Industries Ltd Charging pallet and mechanical parking system equipped with the same
CN102044888A (en) * 2009-10-23 2011-05-04 鸿富锦精密工业（深圳）有限公司 Automatic charging system and method
JP2013194498A (en) * 2012-03-23 2013-09-30 Hitachi Cable Ltd Vehicle charging device
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CN205577547U (en) * 2016-02-24 2016-09-14 中兴新能源汽车有限责任公司 A stereo garage for charge
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