A kind of charging device of electric automobile and charging station charging system
The present invention relates to electric car, charging station charging equipment and its charging methods, more particularly to what is charged to needs
The charging mechanism and its charging method of electric car charge/discharge process offer safe charging environment.
Electric car is the most reliable scheme for being able to solve energy problem, in recent years to the research of electric car just quickly into
Exhibition.Electric car is mainly to drive AC (alternating current) or DC (direct current) motor to obtain power using the power supply of battery
Automobile, be roughly divided into battery special electric automobile and hybrid-electric car, wherein battery special electric automobile is using battery
Power supply carrys out drive motor, and electrical source consumption is finished and recharged later；Hybrid-electric car is generated electricity by runtime engine,
To charge the battery, and electric motor is driven using the electricity, to make vehicle driving.Also, hybrid-electric car can divide
For series system and parallel way, wherein series system is to be converted into electric energy by generator from the mechanical energy that engine exports, should
Electric energy is supplied to battery or motor, so that vehicle be made to drive always by motor, such automobile be in order to increase the range of driving and
The concept of additional setting engine and generator on previous electric car；Parallel way can also make vehicle using battery supply
Traveling only can also drive vehicle with engine (gasoline or diesel oil), and parallel way utilizes both power sources, and according to row
Condition is sailed, parallel way can make engine and motor while drive vehicle.
It is increasingly developed with electric motor control technology, develop not only high output, small-sized and efficiency but also high system.With
DC motor is transformed into AC electric motor, the power performance (accelerating ability, maximum speed) of output and electric car substantially mentions
Height has reached the level no less than gasoline automobile.High rotary with promoting to realize while high output, the motor amount of lightening is small
Type, Weight Loaded and volume are also greatly decreased.Electric car charges to the battery pack loaded, and utilizes charging
Power supply starts automobile, therefore needs the electric current that will be accumulated in battery pack steadily to vehicle supply on startup.To electric car
The charging of charging is the charging cable for being loaded in vehicle to be connected between vehicle and vertical charger to charge.Or
In the case where being provided with the system that radio-frequency card (RF) certification carrys out charging, start to be filled after the certification of normal termination radio-frequency card
Electricity.But for the charging system of previous electric car, user need to carry charging cable, and there are cable vehicle frame quilts
A possibility that robber.Also, electric car need to be charged for a long time, it is possible to be occurred a problem that and be charged on the way such as at it
Fruit pull out cable to another automobile connection if, another automobile is just electrically charged, and its expense is still born by user.Also,
For such electric car, in places such as charging stations in order to charge and in the case where connecting cable or connector, in order to
Perhaps whether connector normally connects and also needs other than the line that data or stream have charging current for detecting confirmation cable
The line whether mutually normally connected.In particular, need to have two whether in order to connect electric car and the two Fang Jun detection of charging institute
Line.But the two lines for being connected with each other and using generally for identification are carried out the function of identification connection, i.e. two lines execute phase
Congenerous, it is therefore desirable to repeat to be arranged.
Past identifies interconnection in order to release such case using a line, another there are side identification connection
Side can not identify the case where connection, i.e., can not be mutually distinguishable simultaneously.Both two sides were made to identify the feelings of connection again using a line
Under condition, communication integrated circuit need to be used, therefore presence is needed in simply identifying circuit interconnected using unnecessary valence
The problem of component of lattice valuableness.
Not only using a line but also secure connection and the scheme of circuit can be simply formed therefore, it is necessary to find out.
Summary of the invention
Technical solution of the present invention is designed to provide a kind of charging device of electric automobile and charging station charging system, is giving
When electric car charges, not only by user authentication, also prevent from illegally approaching by the certification for vehicle, thus more
It easily charges to electric car under the environment of safety.
Technical solution 1: a kind of charging device of electric automobile, including the vehicle-mounted energy storage device of electric car and cooperating therewith
Charging socket, it is characterised in that: the energy storage device includes: energy harvesting circuit, for being electrically connected with the charging socket
Electricity is selectively taken from electric network power line when connecing；Motor, with energy harvesting circuit electrical couplings and for driving electric car to move
It is dynamic；Single-chip microcontroller connects between the energy harvesting circuit and motor, is configured to take the electric energy of electricity from electric network power line, and remembers
Record the identifier of this energy storage device；Wherein the energy harvesting circuit include for recycle storage electric energy series-connected batteries and
The controller of battery group described in electrical couplings, controller is used for when the energy storage device accesses charging socket, described in control
Battery group takes electricity or discharge to electric network power line and control this from electric network power line takes electric or discharging action current strength.
In one embodiment, the connection between the charging socket and energy storage device is by cable mode or wireless
In one embodiment, the energy storage device is further provided with radio frequency (RFID) circuit, for moving in electric car
The correspondence identifier of the charging socket in its Active Area is identified when dynamic or stopping and is connected.
In one embodiment, the RFID circuit includes: transmit circuit, is configured to measure from its Active Area
The identifier signal strength of interior charging socket, and connect the single-chip microcontroller with determined according to the identifier signal strength away from
From upper immediate charging socket；And geographical location information (GIS) circuit of the connection single-chip microcontroller, this most connects for identification
The geographical location of close charging socket.
Technical solution 2: a kind of charging station charging system includes: multiple electric network sources, for obtaining AC from electric network power line
Alternating current is simultaneously converted to DC direct current and is stored；Connect the electronic vapour of directly-chargeable formula of at least one electric network source
Vehicle wherein the electric car includes the energy storage device, and connects the charge connector of the energy storage device, wherein
The charge connector includes: interface, is configured to multiple passive blocks corresponding with the electric network source signal；Absorption dress
It sets, is configured to electric network source described in automatic attaching, and detect whether to conform to the electric network source；Passive signal sends dress
It sets, is determining the rear to electric network source end transmission charge/discharge solicited message of the fitting operation, or change charge/discharge
Current strength；And sensor, the change in location by detecting the interface is configured to detect whether the interface is in
In one embodiment, the passive block is metal or magnetic metal geometric array, for inserting with electric network source
The magnetic element of seat is completely bonded, while having conductive current signal in the metal or magnetic metal geometric array.
In one embodiment, the sensor includes first sensor, for being in the interface with electric network source
When the first contact position, the first fitting signal is sent to electric network source by passive signal sending device；And second sensor,
For being sent to electric network source by passive signal sending device when the interface and electric network source are in the second contact position
Second fitting signal.
Charging station charging system determines that the interface is completely bonded with electric network source end by adsorbent equipment；Pass through passive letter
Number sending device is determining that the rear of the fitting operation send charge/discharge solicited message to electric network source end；And sensor,
The change in location by detecting the interface is configured to determine that the interface is in stable state；It is sensed by sensor
The state of the fitting controls the current strength for taking electricity or discharging action of the energy storage device according to the fit-state.
Technical advantage of the invention is obvious, so that electric vehicle side and charging station source side identify interconnection respectively, by
This can simplify the circuit for making two sides be mutually distinguishable connection status, reduce the complexity of circuit, risk caused by reducing thus, and
And since whether two sides are able to readily recognize connection, other whether without carrying out confirmation connection confirm programs, side
Just give electric car charging.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of charging station charging system；
Fig. 2 schematically shows the structural principle block diagram of charging station charging system.
Shown in referring to Fig.1, in the electric power networks that one is made of electric car 1 and its corollary equipment, vehicle 1 passes through vehicle
It carries mobile device 10 and connects CAN bus communication network 2, remotely to connect onboard servers terminal 3.On the other hand, electric car
Charging end 13 (such as plug-assembly) with the charging socket 41 that can connect electrically-charging equipment 4, and meter is attached with plug 13
Amount device 11 and the energy storage device 12 being attached thereto, energy storage device 12 can carry out radio frequency with the wireless charging facility 5 on ground
(RFID) mode connects, and electrically-charging equipment 5 can connect onboard servers terminal 3 by data line 6 again, sends charging letter
As shown in Fig. 2, charging device of electric automobile includes the vehicle-mounted energy storage device 12 of electric car and with matching
Charging socket 41, energy storage device 12 are configured to store electric energy, the energy storage device when accessing the charging socket 41
12 include energy harvesting circuit 121, is configured as when being electrically connected with the charging socket 41 from electric network power line selectively
Take electricity；Motor 122, with 121 electrical couplings of energy harvesting circuit and for driving the vehicle of electric car 1 mobile or traveling；It is single
Piece machine 123 connects between the energy harvesting circuit 121 and motor 122, is configured to calculate the electricity that electricity is taken from electric network power line
Can, and record the identifier of this energy storage device 12；Wherein the energy harvesting circuit 121 includes series-connected batteries 1211, is used
Electric energy is stored in circulation；The controller 1212 of battery group described in electrical couplings is configured to access in the energy storage device 12
When charging socket, controls the battery group and take electricity from electric network power line or discharge to electric network power line；And it controls this and takes electricity
Or the current strength of discharging action.In one embodiment, the connection between the charging socket 41 and energy storage device 12 is logical
Cross cable mode or wireless electromagnetic mode (such as magnetic inductive).
Referring to Fig. 2, in one embodiment, the energy storage device 12 is specifically further set for energy harvesting circuit 121
There is radio frequency (RFID) circuit 124, for identifying the charging socket in its Active Area in electric car movement or stopping
Corresponding identifier is simultaneously connected.In another example, energy harvesting circuit includes charge connector 13, is connected by charging
It connects device 13 and charging socket is connected with cable mode.
In one embodiment, the RFID circuit 124 includes: transmit circuit 1241, and being configured to measure can from it
The identifier signal strength of charging socket in read range, and the single-chip microcontroller is connected according to the identifier signal strength
To determine apart from upper immediate charging socket；And geographical location information (GIS) circuit 1242 of the connection single-chip microcontroller, it uses
In the geographical location for identifying this immediate charging socket 41.
In another embodiment, charging station charging system includes multiple electric network sources, and the wireless charging of example as shown in figure 1 is set
Apply 5 and charging station 41 or 41 ', it is stored for obtaining AC alternating current from electric network power line and being converted to DC direct current；Connection
The directly-chargeable formula electric car 1 of at least one electric network source, wherein the electric car 1 includes aforementioned energy storage dress
12 are set, and the charge connector 13 of the connection energy storage device is matched wherein the charge connector 13 includes: interface 131
It is set to multiple passive blocks corresponding with the electric network source signal；Adsorbent equipment 132 is configured to electricity described in automatic attaching
Network source, and detect whether to conform to the electric network source 41；Passive signal sending device 133 is determining the fitting operation
It is rear to electric network source end send charge/discharge solicited message, or change charge/discharge current strength；And sensor
134, the change in location by detecting the interface is configured to detect whether the interface is in stable state.
In one embodiment, the passive block is inductance or capacitor, in a preferred example, by inductively
It can carry out the absorption of electromagnetic mode.In another preferred example, make to be bonded institute in passive block by way of capacitor
Capacity cell therein can be triggered when stating charging socket 41 to generate the charge to attract each other or make the capacitor member in socket
Part discharges electric signal to the signal of (for example) charging pile one prompt connection.
In one embodiment, the passive block is that metal or magnetic metal geometric array are (such as round or parallel
Line), have for being completely bonded with the magnetic element of electric network source socket, while in the metal or magnetic metal geometric array
There is conductive current signal.
In one embodiment, the sensor 134 includes first sensor, at the interface and electric network source
When the first contact position (such as when a part fitting), first is sent to electric network source by passive signal sending device 133
It is bonded signal；And second sensor, for being in the second contact position (such as charging plug in the interface and electric network source
Gross section partial adsorbates) when, the second fitting signal is sent to electric network source by passive signal sending device 133.
In one embodiment, signal can be bonded according to the first/second to control by the controller
State the current strength for taking electricity or discharging action of energy storage device.
Charging station charging system controls charge or discharge, determines that the interface and electric network source end are complete by adsorbent equipment
Fitting；The rear to electric network source end transmission charge/discharge request of the fitting operation is being determined by passive signal sending device
Information；And the change in location of the interface is detected to determine that the interface is in stable state by sensor；Pass through sensing
Device senses the state of the fitting, controls the electricity for taking electricity or discharging action of the energy storage device according to the fit-state
Intensity of flow.
In embodiments of the present invention, electric vehicle side and charging station source side identify interconnection respectively, and thus, it is possible to letters
Changing makes two sides be mutually distinguishable the circuit of connection status, reduces the complexity of circuit, risk caused by reducing thus, and due to
It is convenient to electricity without carrying out other confirmation programs whether confirmation connection whether two sides are able to readily recognize connection
Electrical automobile charging.