CN202513649U - Mining intelligent charging device - Google Patents
Mining intelligent charging device Download PDFInfo
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- CN202513649U CN202513649U CN2012201757941U CN201220175794U CN202513649U CN 202513649 U CN202513649 U CN 202513649U CN 2012201757941 U CN2012201757941 U CN 2012201757941U CN 201220175794 U CN201220175794 U CN 201220175794U CN 202513649 U CN202513649 U CN 202513649U
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Abstract
The utility model discloses a mining intelligent charging device, which comprises a main charging circuit and a microprocessor control system, wherein the main charging circuit is composed of a BUCK driving circuit, a current equalizer circuit, a high-frequency direct-current converter (DC-DC) and an electric discharge depolarization circuit, wherein a battery parameter and charging state information acquisition circuit and a charging isolation driving and protection control circuit are respectively connected with a microprocessor so as to form the microprocessor control system of the charging device; the battery parameter and charging state information acquisition circuit conducts real time data acquisition on parameters such as a battery voltage, a battery temperature and a charging current, and the data are analyzed and calculated so as to obtain corresponding control data; and a phase shifting angle is adjusted by outputting PWM (Pulse-Width Modulation) signals so as to control the output voltage and current of a main circuit of the charging device. The charging device can adjust charging parameters according to the detected storage battery state automatically, has a complete protection function, and is efficient to charge, reliable, applicable to a severe use environment, high in power factor and small in pollution to a power grid.
Description
Technical field
The utility model relates to the safety of coal mines technology, particularly the mining intelligent charging device.
Background technology
Mine lamp is the illuminations that miner's downhole operations must carry, and the efficient of its charging system and the performance of charge power supply directly influence the life-span that is recharged the pond.Advantages such as that present mining battery common lead acid accumulator has is with low cost, power supply is reliable, acid miner lamp is still the manufacturing main developing direction of China's mine lamp at present.Mine lamp charging technology and charging device are continued to use traditional constant voltage, constant current charge mode always for a long time; The time of accomplishing once full charging often needs tens hours, and charging current is too small, and charging voltage is unstable; Charging curve is unreasonable, has a strong impact on the useful life of battery.Research and develop a kind of digitlization charging device of switch power supply type, mainly adopt time-dependent current intermittent charge method,, adjust charging process automatically according to the charged state and the ambient temperature of each storage battery.Install reliable and stablely, good human-machine operation function is arranged, both shortened the charging interval, improved charge efficiency, prolonged the life-span of battery again.
Summary of the invention
The purpose of the utility model provides a kind of mining digitlization battery charger; Adopt novel B uck topology; Given according to the optimal charge current curve, adopt intermittently positive and negative zero pulse mise-a-la-masse method of wave, the data acquisition that intelligent control technology is realized, complicated control algolithm and PWM export functions such as control; Automatically adjust charge parameter according to the battery condition that detects, realize accomplishing to charge in batteries and depolarising discharge.
The technical scheme of the utility model gas digital monitoring warning system is following:
The utility model mining intelligent charging device is made up of charging main circuit and microprocessor control system.The charging main circuit is made up of BUCK drive circuit, current equalizer circuit, high frequency dc to dc converter (DC-DC) and discharge depolarization circuit; Battery parameter and charging status information Acquisition Circuit, charging isolation drive and protection control circuit are connected with microprocessor respectively; Constituted the microprocessor control system of charging device; Battery parameter and charging status information Acquisition Circuit are carried out real-time data acquisition to parameters such as battery terminal voltage, battery temperature, charging currents, and data are analyzed and calculated, and draw the control corresponding data; Output pwm signal is regulated phase shifting angle, output voltage, the electric current of control charging device main circuit.
It is real-time monitoring, the control system of core with the DSP chip that the utility model is one.The data acquisition link is carried out real-time data acquisition to parameters such as battery terminal voltage, battery temperature, charging currents; Data are analyzed and calculated; Draw the control corresponding data; Output pwm signal is regulated phase shifting angle, thereby output voltage, the electric current of control charging device main circuit are accomplished efficient, quick, the harmless intelligent charge to storage battery.The utility model is realized multiple information exchange with the intelligent charge of microprocessor realization battery through bus microprocessor and digital battery, improves the intelligent of system; Sliding window setting technique is applied in the detection of semaphore, and negative increment detects an inaccurate difficult problem when solving charging; The control technology flexible Application in charging control, is realized the optimal control of charging process.Device can be adjusted charge parameter according to the battery condition that detects automatically, and it also has perfect defencive function, and charging is efficient, reliable, can adapt to abominable environment for use, and power factor is high, and is little to the pollution of electrical network.
Description of drawings
Fig. 1 is the utility model charging device structure chart.
Fig. 2 is an intermittently positive and negative zero pulse charging curve of the utility model wave.
Fig. 3 is the utility model charging main circuit.
Fig. 4 is the utility model TL494 control loop.
Fig. 5 is the utility model UC3907 current equalizer.
Embodiment
Below in conjunction with accompanying drawing it's a step being past the utility model describes:
As shown in Figure 1, the utility model mining intelligent charging device is made up of charging main circuit and microprocessor control system.The charging main circuit is made up of BUCK drive circuit, current equalizer circuit, high frequency dc to dc converter (DC-DC) and discharge depolarization circuit; Microprocessor control system is connected and composed with microprocessor respectively by battery parameter and charging status information Acquisition Circuit, charging isolation drive and protection control circuit; Battery parameter and charging status information Acquisition Circuit are carried out real-time data acquisition to parameters such as battery terminal voltage, battery temperature, charging currents; Data are analyzed and calculated; Draw the control corresponding data, output pwm signal is regulated phase shifting angle, output voltage, the electric current of control charging device main circuit.
The utility model fast charge method, one side will be accelerated the chemical reaction velocity (improving charging voltage or electric current etc.) of battery, make charging rate obtain maximum raising; Guarantee the absorbability of negative pole on the other hand again, make negative pole can catch up with the speed that anodal oxygen produces, will eliminate the polarization phenomena of battery simultaneously as much as possible.On the basis that combines various charging method pluses and minuses, device adopts intermittently positive and negative zero pulse mise-a-la-masse method of wave, and positive pulse is used for charging, and negative pulse is used for discharge depolarization, and is as shown in Figure 2.Control in this device realizes: charging interval, discharge time, intermittent time be the control of employing time all, and when the real-time clock timing arrives, i.e. Information Monitoring is judged and adopted intermittently positive and negative zero pulse quick charge of wave, still adopts and decides the voltage floating charge.If the threshold value that temperature surpass to be set then stops charging, otherwise proceeds, detect voltage appearance of negative increment in the charging process, expression oneself through being full of, but complete charge then.
The utility model main circuit has BUCK drive circuit, pwm control circuit, current equalizer circuit.The existing specific descriptions as follows:
The BUCK drive circuit belongs to the step-down choke circuits, uses when output voltage is lower than input voltage.In the BUCK drive circuit like Fig. 3, alternating current is after the transformer step-down, by rectifier rectification and big capacitor C 1 smothing filtering, as the DC charging source.Full control device Q1, diode D10, inductance L 1 and capacitor C 23 constitute the BUCK circuit.
Protection control electricity adopts the electric power FET for pwm control circuit, realizes the automatic adjusting of charging voltage (electric current), forms the charging control loop by TL494, single-chip microcomputer, constitutes closed-loop control system.TL494 realizes the adjusting to electric current, voltage in the loop.Detected battery current converts the signal of telecommunication of 0 ~ 5V into, carries out smoothly, removes the IN+ in-phase input end that value after the noise jamming is given the error amplifier worker of TL494 through simple filter circuit.Set input signal by TL494+5V reference voltage source warp one accurate multiturn potentiometer dividing potential drop, insert the IN-inverting input of the error amplifier I of TL494 by the potentiometer moved end through filter circuit.Feedback signal and setting signal compare and enlarge through the error amplifier worker of TL494; And then control stops PWM output, is used for controlling external charging circuit, to keep charger current constant when the constant current charge; Or when constant voltage charge voltage constant, prevent to overcharge.
The current equalizer circuit is to realize through the power stage of controlling each power module, with the flow equalizing circuit of UC3907 design, the inner current amplifier of UC3907 with detected current signal amplify 20 times with current equalizing bus bar on signal relatively.If greater than the signal on the current equalizing bus bar, then the voltage on the bus will be by this power supply decision, i.e. " master control "; If the output current of adjuster is less than the current signal on the bus; When promptly " assisting control ", adjuster makes the reference voltage rising l00mV of voltage amplifier, forces the feedback voltage of system to reduce; Adjusting through the PWM driver module increases this electric power output voltage, thus the autobalance electric current.
The utility model control circuit is the control core of whole digital intelligent charging system, adopts 16 single-chip microcomputers as controller, accomplishes the charging to multiple battery according to the intelligent charge algorithm; Various signals in the charging process detect; Realize protection and warning, user-friendly.Overvoltage, current foldback circuit send comparator by the sampled signal of electric current, the output of voltage sample loop, compare with given overcurrent, overpressure value, when LM324 does the comparator use, are operated in the inelastic region; Pass through two temperature detect switch (TDS)s simultaneously in the design, the branch two-stage is carried out overtemperature protection to controllable silicon.Three passages of the P0 mouth of single-chip microcomputer are realized the detection of voltage detecting, current detecting, temperature; The AC.H0 passage is used for the monitoring of output voltage and cell voltage; The AC.H1 passage is used for the monitoring of battery surface temperature, the monitoring of the output current when the AC.H2 passage is used to supply power, the electric current when discharging and recharging.The detection of temperature, voltage and current then adopts transducer to realize.
Claims (4)
1. mining intelligent charging device; Form by charging main circuit and microprocessor control system; It is characterized in that: the charging main circuit is made up of BUCK drive circuit, current equalizer circuit, high frequency dc to dc converter (DC-DC) and discharge depolarization circuit; Battery parameter and charging status information Acquisition Circuit, charging isolation drive and protection control circuit are connected with microprocessor respectively, have constituted the microprocessor control system of charging device, and battery parameter and charging status information Acquisition Circuit are carried out real-time data acquisition to parameters such as battery terminal voltage, battery temperature, charging currents; Data are analyzed and calculated; Draw the control corresponding data, output pwm signal is regulated phase shifting angle, output voltage, the electric current of control charging device main circuit.
2. a kind of according to claim 1 mining intelligent charging device is characterized in that: said BUCK drive circuit is made up of full control device Q1, diode D10, inductance L 1 and capacitor C 23.
3. a kind of according to claim 1 mining intelligent charging device is characterized in that: said protection control circuit is a pwm control circuit, adopts the electric power FET; Form the charging control loop by TL494, single-chip microcomputer; Constitute closed-loop control system, and be provided with filter circuit and be connected with the error amplifier input, input signal is by TL494+5V reference voltage source warp one accurate multiturn potentiometer dividing potential drop; Insert the IN-inverting input of the error amplifier I of TL494 through filter circuit by the potentiometer moved end; Feedback signal and setting signal compare and enlarge through the error amplifier worker of TL494, and then control stops PWM output, are used for controlling external charging circuit.
4. a kind of according to claim 1 mining intelligent charging device; It is characterized in that: said current equalizer circuit is to use the UC3907 flow equalizing circuit; The inner current amplifier of UC3907 with detected current signal amplify 20 times with current equalizing bus bar on signal relatively, through the adjusting autobalance electric current of PWM driver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201757941U CN202513649U (en) | 2012-04-24 | 2012-04-24 | Mining intelligent charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201757941U CN202513649U (en) | 2012-04-24 | 2012-04-24 | Mining intelligent charging device |
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| CN202513649U true CN202513649U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201757941U Expired - Fee Related CN202513649U (en) | 2012-04-24 | 2012-04-24 | Mining intelligent charging device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638722A (en) * | 2015-02-02 | 2015-05-20 | 成都芯源系统有限公司 | Battery charging system based on digital control and control circuit thereof |
| CN104821623A (en) * | 2015-04-30 | 2015-08-05 | 苏州迈力电器有限公司 | Battery charger |
| CN105186053A (en) * | 2015-08-24 | 2015-12-23 | 长春理工大学 | Variable-current charging method of storage battery |
| CN106772105A (en) * | 2017-02-28 | 2017-05-31 | 大连奇辉计算机网络有限公司 | A kind of PWM controls the detecting device for storage battery of timing discharging |
| CN108173415A (en) * | 2017-12-29 | 2018-06-15 | 河南北瑞电子科技有限公司 | A kind of high power switching power supply that can be in parallel |
-
2012
- 2012-04-24 CN CN2012201757941U patent/CN202513649U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638722A (en) * | 2015-02-02 | 2015-05-20 | 成都芯源系统有限公司 | Battery charging system based on digital control and control circuit thereof |
| CN104638722B (en) * | 2015-02-02 | 2017-07-28 | 成都芯源系统有限公司 | Battery charging system based on digital control and control circuit thereof |
| CN104821623A (en) * | 2015-04-30 | 2015-08-05 | 苏州迈力电器有限公司 | Battery charger |
| CN104821623B (en) * | 2015-04-30 | 2019-01-11 | 苏州迈力电器有限公司 | Battery charger |
| CN105186053A (en) * | 2015-08-24 | 2015-12-23 | 长春理工大学 | Variable-current charging method of storage battery |
| CN106772105A (en) * | 2017-02-28 | 2017-05-31 | 大连奇辉计算机网络有限公司 | A kind of PWM controls the detecting device for storage battery of timing discharging |
| CN106772105B (en) * | 2017-02-28 | 2019-10-11 | 大连奇辉计算机网络有限公司 | A kind of detecting device for storage battery of PWM control timing discharging |
| CN108173415A (en) * | 2017-12-29 | 2018-06-15 | 河南北瑞电子科技有限公司 | A kind of high power switching power supply that can be in parallel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130424 |