A kind of rechargeable type high voltage induction electricity getting deviceTechnical field
The utility model is specifically related to a kind of rechargeable type high voltage induction electricity getting device.
Background technology
Induction power taking power utilization electromagnetic induction principle and magnetic saturation technology, respond on high-tension side electric current by current transformer (CT) and obtain electric energy, compare solar cell, induction power taking power supply has that cost is low, volume is little, the advantage of flexible for installation, stable output, but magnetic saturation technology causes the interchange output of CT to have higher due to voltage spikes, and due to voltage spikes can be damaged power supply internal components; And in the time of the situations such as transmission line power-off or undertension, can not obtain stabling current, thereby cause device normally not move.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, and a kind of rechargeable type high voltage induction electricity getting device is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rechargeable type high voltage induction electricity getting device; comprise power taking unit, electric energy conditioning unit, intelligent protection unit and lithium battery charging management circuit; power taking unit connects electric energy conditioning unit; electric energy conditioning unit connects respectively intelligent protection unit and lithium battery charging management circuit, and intelligent protection unit connects respectively power taking unit, electric energy conditioning unit and lithium battery charging management circuit.
The utility model also has some technical characterictics like this:
Described power taking unit comprises bus, current transformer core, secondary coil, sample resistance and single-pole double throw relay one time, one time bus is through in current transformer core, secondary coil is enclosed within on current transformer core, sample resistance connecting secondary coil, single-pole double throw relay connects sample resistance.
Described electric energy conditioning unit comprises rectification circuit, most advanced and sophisticated leadage circuit, ripple filtering electric capacity and voltage stabilizing circuit, and rectification circuit connects most advanced and sophisticated leadage circuit, and most advanced and sophisticated leadage circuit connects ripple filtering electric capacity, and ripple filtering electric capacity connects voltage stabilizing circuit.
Described intelligent protection unit comprises Single-chip Controlling unit and radio-frequency module, and Single-chip Controlling unit connects radio-frequency module.
The utlity model has following useful effect:
The utility model is reasonable in design, correctly effective, can provide safety and stability continual electric energy, and cost is low, volume is little, flexible for installation, stable output.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is power taking element circuit figure of the present utility model;
Fig. 3 is electric energy conditioning unit circuit diagram of the present utility model;
Fig. 4 is intelligent protection element circuit figure of the present utility model;
Fig. 5 is lithium battery charging management circuit figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
Embodiment 1
A kind of rechargeable type high voltage induction electricity getting device, comprise power taking unit, electric energy conditioning unit, intelligent protection unit and lithium battery charging management circuit, power taking unit connects electric energy conditioning unit, electric energy conditioning unit connects respectively intelligent protection unit and lithium battery charging management circuit, intelligent protection unit connects respectively power taking unit, electric energy conditioning unit and lithium battery charging management circuit, described power taking unit comprises bus 1 one time, current transformer core 2, secondary coil 3, sample resistance 4 and single-pole double throw relay 5, one time bus 1 is through in current transformer core 2, secondary coil 3 is enclosed within on current transformer core 2, sample resistance 4 connecting secondary coils 3, single-pole double throw relay 5 connects sample resistance 3, described electric energy conditioning unit comprises rectification circuit 6, most advanced and sophisticated leadage circuit 7, ripple filtering electric capacity 8 and voltage stabilizing circuit 9, rectification circuit 6 connects most advanced and sophisticated leadage circuit 7, most advanced and sophisticated leadage circuit 7 connects ripple filtering electric capacity 8, ripple filtering electric capacity 8 connects voltage stabilizing circuit 9, described intelligent protection unit comprises Single-chip Controlling unit 10 and radio-frequency module 11, Single-chip Controlling unit 10 connects radio-frequency module 11.
Embodiment 2
Current transformer core, secondary coil and sample resistance take out the electric energy in a bus according to electromagnetic coupling theory.The electric energy of induction, after rectification circuit, most advanced and sophisticated leadage circuit, ripple filtering circuit and voltage stabilizing circuit conditioning, is connected with lithium battery charging management circuit, carries out the Charge Management of lithium battery, finally obtains the continual electric energy of desired safety and stability.Single-chip microcomputer in intelligent protection circuit can be monitored the working temperature of most advanced and sophisticated leadage circuit, and preset temperature exceed standard threshold value, recover threshold value and the duration that exceeds standard.After working temperature exceeds standard, control module disconnects power supply circuits by controlling single-pole double throw relay, recovers after threshold value until the working temperature of most advanced and sophisticated leadage circuit enters, and single-pole double throw relay accesses power supply circuits again.After current supply circuit disconnects, single chip control module is powered by inner super capacitor.When exceeding standard in duration default, the working temperature of most advanced and sophisticated leadage circuit can not enter while recovering threshold value, and radio-frequency module starts, and issues the order of supply unit fault.Radio-frequency module, by Single-chip Controlling, is sent to background host computer by power work state, so that monitoring in real time; Super capacitor is in parallel with single-chip microcomputer, in order to power to single-chip microcomputer in the time that main current supply circuit disconnects.Lithium cell charging managing chip is realized the management of charging and discharging to lithium battery, in the time that the voltage after voltage stabilizing circuit conditioning is enough, and powering load and give lithium cell charging simultaneously; In the time that the voltage after voltage stabilizing circuit conditioning only enough provides electric energy to load, preferential powering load, stops lithium cell charging; In the time of the inadequate powering load of voltage after voltage stabilizing circuit conditioning, lithium battery electric discharge powering load; Thereby make load can obtain the continual electric energy of safety and stability.
Embodiment 3
The alternating voltage at sample resistance two ends becomes pulsating dc voltage from rectification circuit W10G, in parallelly in loop is not subject to the transient state of the surge impact diode D3 that draws up for the protection of power module.Due to magnetic saturation impact, can there is great spike effect in pulsating dc voltage, will damage posterior member if do not process.When pulsating direct current spike is during higher than the voltage stabilizing value of voltage-stabiliser tube D1 and the pressure drop summation of current-limiting resistance R4 (5.1k Ω, 0.5W), D1 conducting.Subsequently, power tube T1 enters conducting state as the overvoltage protection of power supply, and the spike energy of pulsating direct current is transferred on bleeder resistance R1 (50 Ω, 10W).Resistance R 3 (100k Ω, 0.5W) is the current-limiting resistance of T1 gate pole.Now, filter capacitor C1 (1000 μ F) can, by voltage ripple filtering, obtain steady direct voltage.The voltage stabilizing circuit that steadily direct voltage forms via voltage stabilizing chip (LM2575 chip), inductance L 1 (330H), diode D4 carries out voltage stabilizing, is connected with lithium battery charging circuit, and cooperated power supply uses to rear load.Capacitor C 2 (330 μ F) is the filter capacitor of circuit output end of pressure-stabilizing.