Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency, a kind of power battery of electric vehicle accumulation energy type mobile charger is provided, plug and play, for the storage battery of light electric bicycle, battery-operated motor cycle, electro-tricycle, low-speed electronic carriage and following electric automobile etc. provides stand-by power supply, can extend mileages of continuation 20 ~ 50Km, even hundreds of Km.In addition, the more important thing is as power battery of electric vehicle accumulation energy type mobile charger and use, avoid directly to the direct charging of battery of electric vehicle, can extending battery, battery rechargable battery is more steady, safer sooner.Main innovation is to design a portable lithium battery pack charger, configures the output line of a fixed voltage or the output line of adjustable voltage on lithium battery charger, to meet the wide power voltage supply demand of existing electric motor car 36V ~ 72V.
Specifically implement like this: power battery of electric vehicle accumulation energy type mobile charger, comprise the power lithium battery group in shell, shell, it is characterized in that being provided with above shell the mains switch, charging hole, the discharge aperture that are connected with power lithium battery group circuit board, in described discharge aperture, assign an output line to connect power battery of electric vehicle, the output line of the output line or belt step transformer that output line is rated voltage.Because input voltage and the output voltage of most power battery of electric vehicle is 48V, conventionally the utility model is charged hole input voltage, discharge aperture output voltage is fixedly designed to 48V, is designed to 48V, the mobile charger of 7-20AH, after on electric vehicle, can renew boat 20 ~ 50km, even hundreds of Km.By the charger supporting with charging hole or the solar opto-electronic board being connected by battery line, can charge for mobile charger.According to the use electric pressure of electric motor car on market, supporting discharge aperture output line can be designed as the fixedly output line of output voltage, as 20V or 36V or 64V or 72V, also can on output line, design a band step transformer, the voltage range of step transformer is generally designed to 20V-72V, and this transformer also can be designed to two kinds of forms, and fixedly output voltage and voltage swing are adjustable, the different voltages that need with configuration electric motor car, also can be the household electrical appliance power supplies such as notebook computer.By this electric discharge socket, plugging in can be directly just the charge in batteries of electric motor car, can be embodied as the function of storage battery electric energy supplement.
In the wiring board of the utility model lithium battery group, be designed with circuit overcurrent protection, overcharge protection circuit, over circuit and superthermal protective circuit.1) overcurrent protection: auto-breaking when electric current reaches set point C, wherein C is battery capacity.2) over-charge protective: when charging voltage reaches set point V1, auto-breaking.3) over: when discharge voltage reaches set point V2, automatically stop electric discharge.4) overtemperature prote: during lithium battery improper use, internal temperature raises, internal pressure increases, when pressure increases to shell and cannot bear, blasts.The utility model, in the inner set temperature protective circuit of charger, can effectively reduce the probability because of lithium battery heating generation blast.Basic parameter is as follows:
Euqalizing current: 50-70mA (during VCELL=4.20V)
Pressure reduction after equilibrium: <50mV
Overcharge thresholding: 4.25-4.35V (optional)
Overcharge time delay: 100mS (capable of regulating)
Overcharge release: 4.05-4.15V
Cross and put thresholding: 2.00-2.7V (can adjust according to demand)
Cross and put time delay: 100mS
Cross and put release: disconnecting consumers, and each monomer battery voltage is all put thresholding higher than crossing
Overcurrent thresholding: 35 ± 5 A (selecting as required)
Overcurrent discharges: load resistance is greater than 10M Ω
Overheat protector: have interface, need user to increase temperature switch
Short-circuit protection: there is Electronic Protection and physical protection
Quiescent dissipation: < 200uA
Shell of the present utility model is for adopting light metal or engineering plastics manufacture.
Shell of the present utility model is provided with carry hand, is convenient to the taking and placing of charger.
On shell of the present utility model, be provided with battery capacity indication table, can show the electric weight of charger, after charging, automatically stop charging.
On shell of the present utility model, also can design some USB output interfaces, for example the USB output interface of 4.2 ~ 5V, 2.1A and 1000mA, can directly charge for electric equipment productss such as mobile phone, music player MP4, electric fans.
The port of the utility model charging hole, discharge aperture, USB output interface, is designed with water proof rubber lid, to prevent that rainwater from entering.
On shell of the present utility model, can be equipped with lighting apparatus, charger can be used as the power supply that illuminating lamp or safety warning light are provided convenience.
The utility model adds power station as the movement of electric motor car, the minimum capacity design 20 kilometers of left and right that once continue, therefore the charging interval is short, once be full of electricity and only need about 3 hours, and lightweight (about 1Kg left and right), volume is little, energy storage foot, production cost is low, can be portable electric vehicle, battery-operated motor cycles etc. provide the power that continues, the fare register that can not meet actual needs when battery of electric vehicle can be to existing charging battery of electric vehicle, the more important thing is as power battery of electric vehicle accumulation energy type mobile charger and use, avoid directly to battery of electric vehicle, directly charging, can extend battery, battery rechargable battery is more steady sooner, safer.
For meeting the different needs that use, on lithium battery charger, configuration is with the output line of lifting voltage function, multiple power sources output is provided, can meet the wide power voltage supply demand of existing electric motor car 36V ~ 72V, can be electronic equipment power supply and the charging of different voltages, for example on lead-out terminal, plug small household appliances illumination can be provided, and be notebook computer, panel computer, sound equipment, mobile phone, MP4, mobile WIFI directly provides power supply or charging, be characterized in simple in structure, light, small and exquisite, cheap.
Embodiment 1, power battery of electric vehicle accumulation energy type mobile charger, comprise the shell 1 of being manufactured by light metal or engineering plastics, the power lithium battery group 3 in shell, shell 1 is provided with mains switch 4, charging hole 5, the discharge aperture 7 being connected with power lithium battery group 3 circuit boards above, charging hole 5, discharge aperture 7 are designed to fixing 48V, 7-100AH grade, in discharge aperture 7, assign an output line to connect power battery of electric vehicle, output line is the output line with step transformer 6, and the voltage range of step transformer is 20V-72V.
In the wiring board of lithium battery group 3, be designed with circuit overcurrent protection, overcharge protection circuit, over circuit and superthermal protective circuit.
Shell 1 is provided with carry hand 2, battery capacity indication table 10,2.1A USB output port 8,1000mA USB output port 9.
Embodiment 2, reference example 1, and the output line that the output line of assigning in discharge aperture 7 is rated voltage, the port of charging hole 5, discharge aperture 7, USB output interface (8,9), is designed with water proof rubber lid.