CN201307776Y - Intelligent four-section charger - Google Patents

Intelligent four-section charger Download PDF

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Publication number
CN201307776Y
CN201307776Y CNU2008201613883U CN200820161388U CN201307776Y CN 201307776 Y CN201307776 Y CN 201307776Y CN U2008201613883 U CNU2008201613883 U CN U2008201613883U CN 200820161388 U CN200820161388 U CN 200820161388U CN 201307776 Y CN201307776 Y CN 201307776Y
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CN
China
Prior art keywords
frequency
circuit
charger
relay
filtering
Prior art date
Application number
CNU2008201613883U
Other languages
Chinese (zh)
Inventor
陆大威
李净玉
孙金水
邹龙
徐正源
Original Assignee
南京硕冠科技实业有限公司
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Application filed by 南京硕冠科技实业有限公司 filed Critical 南京硕冠科技实业有限公司
Priority to CNU2008201613883U priority Critical patent/CN201307776Y/en
Application granted granted Critical
Publication of CN201307776Y publication Critical patent/CN201307776Y/en

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Abstract

An intelligent four-section charger is characterized by the inclusion of a low-frequency filter circuit, a high-frequency filter circuit, a switch inverter circuit, a high-frequency transformer, a high-frequency rectifier filter and a feedback control circuit, wherein the low-frequency filter circuit and the high-frequency rectifier filter covert the alternating current (AC) input to the direct current (DC) input and output the AC to the switch inverter circuit; the feedback control circuit controls the switch inverter circuit to convert the DC to high-frequency low-voltage current through the high-frequency transformer; the required DC is output by the high-frequency rectifier filter; and the feedback control circuit samples the variation of the DC output by the high-frequency rectifier filter and controls the switch inverter circuit according to the process variation. The charger prolongs the service life of storage batteries.

Description

Intelligence four-part form charger
Technical field
The utility model relates to the switch power technology field, specifically is a kind of intelligent four-part form charger that is used to charge a battery, and it is specially adapted to the charging of electric vehicle storage battery.
Background technology
Got more and more as powered device with electric energy at present, for example UPS, electric automobile, vehicle using motor etc.Because the accident that storage battery causes also becomes more and more, a lot of accidents all because of charger can not be fire-retardant, non-refractory, not anti-low cold, be not with protection, reason such as overcharge and cause.And because of the deficiency of charger, storage battery more or less exists to be owed to fill, and overcharges combined symptoms such as dehydration, sulfuration, unbalance, thermal runaway, influences the life of storage battery.Use in the market many three-step chargers exist equally overcharge, sulfuration, combined symptoms such as unbalance, make that the battery pack cycle-index is not high, the life-span is low, pollute and waste.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of intelligent four-part form charger, concrete technical scheme is as follows:
A kind of intelligent four-part form charger comprises low-frequency filter circuit, filtering high-frequency rectifier device, switching inverter circuit, high frequency transformer, filtering high-frequency rectifier, feedback control circuit; Low frequency filtering, filtering high-frequency rectifier device become exchange input into direct current, export to switching inverter circuit; Simultaneously described direct current is transformed into high frequency low voltage through high frequency transformer by feedback control circuit control switch inverter circuit; Export required direct current through the filtering high-frequency rectifier device again; Feedback control circuit is sampled to the variation of filtering high-frequency rectifier device output DC, and changes according to this process and to come the control switch inverter circuit.
This charger also comprises direct current sampling testing circuit, and the input of this direct current sampling testing circuit connects filtering high-frequency rectifier device output, and the output of this direct current sampling testing circuit connects the input of feedback control circuit.
This charger also comprises switching relay J2; The secondary main circuit of high frequency transformer inserts the Chang Kaiduan of this relay J 2; Feedback control circuit connects the adhesive of control relay J2; The mid point of relay J 2 connects the input of feedback control circuit.
This charger also comprises relay J 1; The adhesive of feedback control circuit control relay J1; The mid point of this relay J 1 connects the output of filtering high-frequency rectifier device, and the normal-closed end of this relay J 1 connects the elementary of high frequency transformer.The Chang Kaiduan of relay J 1 is connected with LED; The normal-closed end of switching relay J2 is connected with LED.
The circuit that it is core that described switching inverter circuit adopts with PWM controller and the incorporate integrated control chip of MOSFET power switch.
The input of this charger also is provided with thermistor.
The filtering high-frequency rectifier device output direct current of this charger is to charge in batteries, and feedback control circuit is exported in the variation of direct current sampling testing circuit tracking charging process, remove to change the control switch inverter circuit by feedback control circuit according to this process variation, can suppress the variation of direct current output, reach the purpose of intelligent charge.The utility model is simple in structure, and is of many uses.Work charging full positive pulse charging, devulcanization reduces the storage battery dehydration, controls overall process automatically, is full of the back autostop, and is anti-overcharge.The utility model is simple in structure, of many uses.By feedback control circuit is core, and collection dodges and to fill, and perseverance is filled, and tiny stream fills, brought offline four-part form way to manage is in one.Through test, this charger can make the batteries cycle-index substantially exceed charger of the prior art to the battery charging number of times, has improved the life of storage battery.
Description of drawings
Fig. 1 is the utility model block diagram.
Fig. 2 is the electrical schematic diagram of the utility model control circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of intelligent four-part form charger comprises low-frequency filter circuit, filtering high-frequency rectifier device, switching inverter circuit, high frequency transformer, filtering high-frequency rectifier, feedback control circuit; Low frequency filtering, filtering high-frequency rectifier device become exchange input into direct current, export to switching inverter circuit; Simultaneously described direct current is transformed into high frequency low voltage through high frequency transformer by feedback control circuit control switch inverter circuit; Export required direct current through the filtering high-frequency rectifier device again; Feedback control circuit is sampled to the variation of filtering high-frequency rectifier device output DC, and changes according to this process and to come the control switch inverter circuit.This charger also comprises direct current sampling testing circuit, and the input of this direct current sampling testing circuit connects filtering high-frequency rectifier device output, and the output of this direct current sampling testing circuit connects the input of feedback control circuit.This charger also comprises switching relay J2; The secondary main circuit of high frequency transformer inserts the Chang Kaiduan of this relay J 2; Feedback control circuit connects the adhesive of control relay J2; The mid point of relay J 2 connects the input of feedback control circuit.This charger also comprises relay J 1; The adhesive of feedback control circuit control relay J1; The mid point of this relay J 1 connects the output of filtering high-frequency rectifier device, and the normal-closed end of this relay J 1 connects the elementary of high frequency transformer.The Chang Kaiduan of relay J 1 is connected with LED; The normal-closed end of switching relay J2 is connected with LED.The circuit that it is core that described switching inverter circuit adopts with PWM controller and the incorporate integrated control chip of MOSFET power switch.Input at described charger also is provided with thermistor.
As shown in Figure 2, in this example, charger is made up of 2 core plug incoming lines, charger body, 3 core socket output lines, three parts.Wherein 2 core plug incoming lines link to each other with electric main; 3 core socket output lines link to each other with storage battery.
Low frequency filtering 1, filtering high-frequency rectifier device 2 are made of thermistor RT, rectifier bridge DD, filter capacitor E1, suction cutting edge of a knife or a sword resistance R 2 capacitor C 3, fast recovery diode D1, relay J 1.Civil power is gone into low frequency filtering 1 by importing 2 core sockets, through filtering high-frequency rectifier device 2 output high voltage direct current, to switching inverter circuit 3.Switching inverter circuit 3 is by present advanced person's PWM controller and the incorporate integrated control chip Q3TOP227 of MOSFET power switch, resistance R 4, and electric capacity E2 constitutes.IC feedback control circuit 7 is be the circuit of core with U2 (PIC12C5 series unit), and U2 gathers the control end that output changes following feedback control Q3, thereby suppresses or compensation is exported.The output of switching inverter circuit 3 connects the elementary of high frequency transformer 5, the secondary output 3 tunnel of high frequency transformer.One the tunnel is main circuit, is made up of fast recovery diode DT, filter capacitor E1 ', resistance R 1 ', voltage-stabiliser tube Z1 ', resistance R 2 ', R3 ', R12 ', voltage-stabiliser tube D4 '; The second the tunnel is auxiliary power circuit, is made up of rectifier diode D ', filter capacitor E2 ', E3 ', voltage-stabiliser tube V1 ', resistance R 11 ' and charging indicator light, and this partial circuit is power supplies such as internal control circuit and electric fan; Third Road also is that accessory power supply is the Q3 power supply, is made up of diode D2, capacitor C 4.The Chang Kaiduan of high frequency transformer level time main circuit cut-in relay J2, the mid point of J2 is input to 2 pin of U2, detects battery status when U2 follows the tracks of, when storage battery fills when full, the adhesive of the 7 pin output low level J1 of U2, charger is disembarked, and U2 can realize various protections simultaneously.5 pin of U2 detect current tracking feedback output 1 foot control system integrated power chip Q3.3,6 pin of U2 connect the line bag of J2 simultaneously, and the adhesive of control J2 realizes the reverse connecting protection function.Resistance R 20 ', GZ indicator light are the reversal connection indication.
Because realizing the program of the method described in this example in the single-chip microcomputer is that prior art those skilled in the art ratio is easier to programming, and is not the utility model object of protection, so be not described further at this.

Claims (7)

1, a kind of intelligent four-part form charger is characterized in that comprising low-frequency filter circuit, filtering high-frequency rectifier device, switching inverter circuit, high frequency transformer, filtering high-frequency rectifier, feedback control circuit; Low frequency filtering, filtering high-frequency rectifier device become exchange input into direct current, export to switching inverter circuit; Simultaneously described direct current is transformed into high frequency low voltage through high frequency transformer by feedback control circuit control switch inverter circuit; Export required direct current through the filtering high-frequency rectifier device again; Feedback control circuit is sampled to the variation of filtering high-frequency rectifier device output DC, and changes according to this process and to come the control switch inverter circuit.
2, intelligent four-part form charger according to claim 1, it is characterized in that also comprising direct current sampling testing circuit, the input of this direct current sampling testing circuit connects filtering high-frequency rectifier device output, and the output of this direct current sampling testing circuit connects the input of feedback control circuit.
3, intelligent four-part form charger according to claim 1 and 2 is characterized in that also comprising switching relay J2; The secondary main circuit of high frequency transformer inserts the Chang Kaiduan of this relay J 2; Feedback control circuit connects the adhesive of control relay J2; The mid point of relay J 2 connects the input of feedback control circuit.
4, intelligent four-part form charger according to claim 3 is characterized in that also comprising relay J 1; The adhesive of feedback control circuit control relay J1; The mid point of this relay J 1 connects the output of filtering high-frequency rectifier device, and the normal-closed end of this relay J 1 connects the elementary of high frequency transformer.
5, intelligent four-part form charger according to claim 4 is characterized in that the Chang Kaiduan of relay J 1 is connected with LED; The normal-closed end of switching relay J2 is connected with LED.
6, intelligent four-part form charger according to claim 1 is characterized in that the circuit that described switching inverter circuit employing is a core with PWM controller and the incorporate integrated control chip of MOSFET power switch.
7, intelligent four-part form charger according to claim 1 is characterized in that also being provided with thermistor at the input of described charger.
CNU2008201613883U 2008-11-19 2008-11-19 Intelligent four-section charger CN201307776Y (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CNU2008201613883U CN201307776Y (en) 2008-11-19 2008-11-19 Intelligent four-section charger

Publications (1)

Publication Number Publication Date
CN201307776Y true CN201307776Y (en) 2009-09-09

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753042A (en) * 2010-02-10 2010-06-23 浪潮(北京)电子信息产业有限公司 Distributed power supply system
CN103248107A (en) * 2013-05-20 2013-08-14 镇江天力变压器有限公司 High-power vehicle-mounted charging device based on DSP (Digital Signal Processor) control
CN103607019A (en) * 2013-12-03 2014-02-26 周挺巧 Charger for motor vehicle mutual charging through live wire connection
CN104009528A (en) * 2013-02-27 2014-08-27 上海海事大学 Storage battery charging circuit and charging method thereof
CN104052285A (en) * 2014-03-18 2014-09-17 江苏中利电子信息科技有限公司 DC power supply converter board
CN107592025A (en) * 2016-02-05 2018-01-16 广东欧珀移动通信有限公司 Charging system, the charging method of terminal and power supply adaptor
CN108448665A (en) * 2018-03-08 2018-08-24 合肥新胜电达电子科技有限公司 A kind of intelligent charging system that accumulator group is charged and conserved
US10910852B2 (en) 2016-07-26 2021-02-02 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system, charging method, and power adapter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753042A (en) * 2010-02-10 2010-06-23 浪潮(北京)电子信息产业有限公司 Distributed power supply system
CN104009528A (en) * 2013-02-27 2014-08-27 上海海事大学 Storage battery charging circuit and charging method thereof
CN103248107A (en) * 2013-05-20 2013-08-14 镇江天力变压器有限公司 High-power vehicle-mounted charging device based on DSP (Digital Signal Processor) control
CN103607019A (en) * 2013-12-03 2014-02-26 周挺巧 Charger for motor vehicle mutual charging through live wire connection
CN103607019B (en) * 2013-12-03 2015-05-13 周挺巧 Charger for motor vehicle mutual charging through live wire connection
CN104052285A (en) * 2014-03-18 2014-09-17 江苏中利电子信息科技有限公司 DC power supply converter board
CN104052285B (en) * 2014-03-18 2017-12-01 江苏中利电子信息科技有限公司 D/C power change-over panel
CN107592025A (en) * 2016-02-05 2018-01-16 广东欧珀移动通信有限公司 Charging system, the charging method of terminal and power supply adaptor
US10320217B2 (en) 2016-02-05 2019-06-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system and method, and power adapter
US10418835B2 (en) 2016-02-05 2019-09-17 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system and method, and power adapter
US10910852B2 (en) 2016-07-26 2021-02-02 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Charging system, charging method, and power adapter
CN108448665A (en) * 2018-03-08 2018-08-24 合肥新胜电达电子科技有限公司 A kind of intelligent charging system that accumulator group is charged and conserved

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090909

Termination date: 20101119

C17 Cessation of patent right