CN205178553U - Wireless charger that can be used to fault indicator - Google Patents
Wireless charger that can be used to fault indicator Download PDFInfo
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- CN205178553U CN205178553U CN201520865197.5U CN201520865197U CN205178553U CN 205178553 U CN205178553 U CN 205178553U CN 201520865197 U CN201520865197 U CN 201520865197U CN 205178553 U CN205178553 U CN 205178553U
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Abstract
The utility model provides a wireless charger that can be used to fault indicator, including energy emission module, receiving coil, energy collection circuit, rectification filter circuit, charge and discharge management circuit, backup battery and load, energy emission module wireless connection receiving coil, receiving coil is connected to the circuit is collected to the energy, circuit connection is collected extremely to the energy rectification filter circuit, the rectification filter circuit connect respectively charge and discharge management circuit and load, charge and discharge management circuit connects respectively backup battery and load, adopt the wireless electricity back of getting, fault indicator's work does not receive line current and weather effect, and it is stable to get the electricity, can improve MCU to the real -time processing ability of data, promotes fault indicator's warning accuracy indirectly.
Description
Technical field
The utility model relates to a kind of wireless charger, refers in particular to a kind of wireless charger that can be used for fault detector.
Background technology
Existing fault detector many employings circuit power taking or solar cell power taking, power taking limited power is in line load size of current and weather conditions, and at load current during lower or rainy weather, fault detector just can not work very well.In addition because power supply is unstable, power supply energy is little, traditional fault detector adopts simple algorithm and long-term park mode to save energy, and real time data processing ability, properties of product cannot promote, and cause the recall rate of short circuit and earth fault low.
Summary of the invention
The technical problems to be solved in the utility model, be to provide a kind of wireless charger that can be used for fault detector, after adopting wireless power taking, the work of fault detector is not by line current and weather effect, power taking is stablized, the processing capability in real time of MCU to data can be improved, indirectly promote the warning accuracy of fault detector.
The utility model is achieved in that a kind of wireless charger that can be used for fault detector, comprise energy transmitter module, receiving coil, energy collection circuit, current rectifying and wave filtering circuit, management of charging and discharging circuit, backup battery and load, receiving coil described in the wireless connections of described energy transmitter module, described receiving coil is connected to described energy collection circuit, described energy collection circuit is connected to described current rectifying and wave filtering circuit, described current rectifying and wave filtering circuit connects described management of charging and discharging circuit and load respectively, described management of charging and discharging circuit connects described backup battery and load respectively.
Further, described management of charging and discharging circuit comprises: electric capacity C1, electric capacity C2, diode V1, resistance R5, resistance R6, resistance R7, resistance R8, charging management chip U1 and triode Q1, described current rectifying and wave filtering circuit connects described electric capacity C1 one end respectively, the negative electrode of diode V1, the pin VCC of charging management chip U1, the pin COMP of charging management chip U1, one end of resistance R8 and load, the other end of described resistance R8 connects the pin SNS of described charging management chip U1 and the C pole of triode Q1 respectively, and the anode of described diode V1 connects the pin BAT of described charging management chip U1 respectively, one end of resistance R5, one end of backup battery and electric capacity C2, the other end of described resistance R5 connects the pin TS of described charging management chip U1 and one end of resistance R6 respectively, the B pole of described triode Q1 is connected to the pin CC of described charging management chip U1 by resistance R7, the E pole of described triode Q1 is connected to described backup battery, the other end of described electric capacity C1, the other end of resistance R6, the pin VSS of charging management chip U1 and the equal ground connection of the other end of electric capacity C2.
Further, described charging management chip U1 is BQ2057WSN chip.
The utility model has the advantage of: a kind of wireless charger that can be used for fault detector of the utility model, wireless way to take power has following benefit: 1. not by line current and weather effect, can guarantee fault detector payload security, reliable and stable operation; 2. promote the technical performance of fault detector product.
Accompanying drawing explanation
The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is a kind of wireless charger principle schematic that can be used for fault detector of the utility model.
Fig. 2 is the circuit diagram of management of charging and discharging circuit in the utility model.
Embodiment
As shown in Figure 1, the utility model can be used for the wireless charger of fault detector, comprise energy transmitter module, receiving coil, energy collection circuit, current rectifying and wave filtering circuit, management of charging and discharging circuit, backup battery and load, receiving coil described in the wireless connections of described energy transmitter module, described receiving coil is connected to described energy collection circuit, described energy collection circuit is connected to described current rectifying and wave filtering circuit, described current rectifying and wave filtering circuit connects described management of charging and discharging circuit and load respectively, described management of charging and discharging circuit connects described backup battery and load respectively.
As shown in Figure 2, the circuit of management of charging and discharging described in the utility model comprises: electric capacity C1, electric capacity C2, diode V1, resistance R5, resistance R6, resistance R7, resistance R8, charging management chip U1 and triode Q1, described current rectifying and wave filtering circuit connects described electric capacity C1 one end respectively, the negative electrode of diode V1, the pin VCC of charging management chip U1, the pin COMP of charging management chip U1, one end of resistance R8 and load, the other end of described resistance R8 connects the pin SNS of described charging management chip U1 and the C pole of triode Q1 respectively, and the anode of described diode V1 connects the pin BAT of described charging management chip U1 respectively, one end of resistance R5, one end of backup battery and electric capacity C2, the other end of described resistance R5 connects the pin TS of described charging management chip U1 and one end of resistance R6 respectively, the B pole of described triode Q1 is connected to the pin CC of described charging management chip U1 by resistance R7, the E pole of described triode Q1 is connected to described backup battery, the other end of described electric capacity C1, the other end of resistance R6, the pin VSS of charging management chip U1 and the equal ground connection of the other end of electric capacity C2, described charging management chip U1 is BQ2057WSN chip, and wherein in figure, Rload is load.
As shown in Figure 2, its principle: management of charging and discharging builds with BQ2057 chip, and BQ2057 is applicable to the charging needs of lithium ion and lithium polymer battery.Its inner integrated constant pressure and flow device, with high and low limit current sense and programmable charge current, has automatically the characteristic such as charging again, minimum current termination charging, low-power consumption sleep.First BQ2507 checks operating voltage Vin+ (this Vin+ end is connected to current rectifying and wave filtering circuit), when the too low charger of operating voltage enters sleep pattern, if operating voltage is normal, check that whether battery temperature is at setting range by the voltage on TS pin, as abnormal, enter temperature fault pattern, otherwise detect cell voltage BAT+ (this BAT+ end is connected to backup battery), when cell voltage BAT+ is lower than thresholding, chip is with the current versus cell precharge of constant current 10%IREG.To complete battery pre-charging or cell voltage BAT+ lower than constant voltage VREG (namely to BQ2507W, VREG representative value is 8.4V) time, chip enters constant current charge state, now monitor charging current by the pressure drop on the sensing resistor R8 of outside, change resistance and take flash connected mode, namely R8 is connected between Vin+ and SNS pin, is obtained the feedback of charging current by SNS pin.Wherein R8=VSNS/IREG, IREG are expection charging current.Constant voltage charge state is entered when charging voltage reaches constant voltage.When inputting Vin+ and meeting operating voltage requirements, Vin+ is that load Rload powers, and is standby lithium cell charging.When Vin+ dead electricity, standby lithium battery passes through diode V1 to load discharge.
As shown in Figure 1, energy transmitter module is positioned at the concentrator of overhead line structures, and transmitting coil is wherein multiturn coil, uses the good ferrite of poly-magnetic energy power to carry out yoke process, selects the iron-based nano material design disk structure of high magnetic permeability, high resistivity.Fault detector includes receiving coil, energy collection circuit, current rectifying and wave filtering circuit and charge management circuit, and these circuit modules are connected successively, finally access backup battery.
The course of work describes:
After concentrator powers on, energy transmitter module launches magnetic energy to fault detector, after the induction coil of fault detector receives magnetic energy, be converted to electric flux, by becoming the direct current of constant voltage after collection of energy and current rectifying and wave filtering circuit, then be backup battery and load supplying by charge management circuit (see Fig. 1).
Although the foregoing describe embodiment of the present utility model; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present utility model; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present utility model and change, should be encompassed in scope that claim of the present utility model protects.
Claims (2)
1. one kind can be used for the wireless charger of fault detector, it is characterized in that: comprise energy transmitter module, receiving coil, energy collection circuit, current rectifying and wave filtering circuit, management of charging and discharging circuit, backup battery and load, receiving coil described in the wireless connections of described energy transmitter module, described receiving coil is connected to described energy collection circuit, described energy collection circuit is connected to described current rectifying and wave filtering circuit, described current rectifying and wave filtering circuit connects described management of charging and discharging circuit and load respectively, described management of charging and discharging circuit connects described backup battery and load respectively.
2. a kind of wireless charger that can be used for fault detector as claimed in claim 1, is characterized in that: described management of charging and discharging circuit comprises: electric capacity C1, electric capacity C2, diode V1, resistance R5, resistance R6, resistance R7, resistance R8, charging management chip U1 and triode Q1, described charging management chip U1 is BQ2057WSN chip, and described current rectifying and wave filtering circuit connects described electric capacity C1 one end respectively, the negative electrode of diode V1, the pin VCC of charging management chip U1, the pin COMP of charging management chip U1, one end of resistance R8 and load, the other end of described resistance R8 connects the pin SNS of described charging management chip U1 and the C pole of triode Q1 respectively, and the anode of described diode V1 connects the pin BAT of described charging management chip U1 respectively, one end of resistance R5, one end of backup battery and electric capacity C2, the other end of described resistance R5 connects the pin TS of described charging management chip U1 and one end of resistance R6 respectively, the B pole of described triode Q1 is connected to the pin CC of described charging management chip U1 by resistance R7, the E pole of described triode Q1 is connected to described backup battery, the other end of described electric capacity C1, the other end of resistance R6, the pin VSS of charging management chip U1 and the equal ground connection of the other end of electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865197.5U CN205178553U (en) | 2015-11-03 | 2015-11-03 | Wireless charger that can be used to fault indicator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865197.5U CN205178553U (en) | 2015-11-03 | 2015-11-03 | Wireless charger that can be used to fault indicator |
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| CN205178553U true CN205178553U (en) | 2016-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262173A (en) * | 2015-11-03 | 2016-01-20 | 福建奥通迈胜电力科技有限公司 | Wireless charger suitable for fault indicator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262173A (en) * | 2015-11-03 | 2016-01-20 | 福建奥通迈胜电力科技有限公司 | Wireless charger suitable for fault indicator |
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