CN107294177A - Intrinsically safe miner lamp charging system and charging method thereof - Google Patents
Intrinsically safe miner lamp charging system and charging method thereof Download PDFInfo
- Publication number
- CN107294177A CN107294177A CN201710667324.4A CN201710667324A CN107294177A CN 107294177 A CN107294177 A CN 107294177A CN 201710667324 A CN201710667324 A CN 201710667324A CN 107294177 A CN107294177 A CN 107294177A
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- CN
- China
- Prior art keywords
- charging
- intrinsic safety
- mine lamp
- voltage
- safety mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 5
- 238000011897 real-time detection Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H02J7/0077—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a charging system and a charging method of an intrinsically safe miner lamp, wherein the intrinsically safe miner lamp is provided with a rechargeable battery and a current-limiting resistor, and the charging system comprises a detection control unit, a DC/DC direct current converter and a charging circuit unit; the detection control unit and the constant-current voltage stabilizing unit are connected with the charging circuit and are used for detecting open-circuit voltage when the intrinsic safety miner lamp is not charged, detecting charging voltage and charging current in real time when the intrinsic safety miner lamp is charged and controlling the DC/DC direct-current converter and the charging circuit unit to charge the intrinsic safety miner lamp. The invention can measure the current-limiting resistance of the intrinsic safety miner lamp and control the charging voltage and the charging current according to the measured current-limiting resistance, thereby enabling the intrinsic safety miner lamp to achieve the effect of complete charging.
Description
Technical field
The present invention relates to digital circuit field, more particularly to a kind of intrinsic safety mine lamp charging system and its charging method.
Background technology
According to the requirement of national Administration of Work Safety Supervision, from one day October in 2016, the prominent mine of height must use essential safe type ore deposit
Lamp, i.e. intrinsic safety mine lamp, intrinsic safety mine lamp are compared to the main distinction that traditional mine lamp has：Traditional mine lamp is by lithium battery group and battery
Protector is constituted, and intrinsic safety mine lamp is additionally provided with safety protection plate in addition to lithium battery group and battery protector, the safety protection
Plate is made up of Li battery protection IC, current-limiting resistance, the insurance of PTC Self-resettings, therefore in intrinsic safety mine lamp charging, due to this security
Current-limiting resistance in backplate can charge together with lithium battery, because the partial pressure that current-limiting resistance is caused causes filling for lithium battery group acquisition
Piezoelectric voltage is not enough, results in the need for the charging interval longer than traditional mine lamp, because the charging rack of Coal Exploitation centralization is to intrinsic safety
Mine lamp is charged, and the charging circuit of existing charging rack can only provide the charging voltage and charging current of one or several fixations,
And the charging voltage that existing charging circuit is provided is remained designed by traditional mine lamp, therefore when to intrinsic safety mine lamp charging
Charging voltage is less than the charging voltage that mine lamp lithium battery needs, and causes existing charging system small at 10 as defined in standard
When it is interior fully charged to intrinsic safety mine lamp, the model additionally, due to mine lamp is complicated, safety protection plate circuit design therein also phase not to the utmost
Together, existing charging circuit is difficult to the mine lamp of adaptive a variety of different models, reduce further charge efficiency.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of intrinsic safety mine lamp charging system, intrinsic safety mine lamp can be detected automatically
Current-limiting resistance size so that adaptive adjustment charging voltage, intrinsic safety mine lamp charging is allowed completely, to overcome prior art to deposit
Deficiency.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
There is rechargeable battery and current-limiting resistance, its feature exists in a kind of charging system of intrinsic safety mine lamp, the intrinsic safety mine lamp
In：Including detection control unit, DC/DC direct current transducers and charging circuit unit；The charging circuit unit is connected to DC/
Between DC direct current transducers and intrinsic safety mine lamp, the detection control unit and the constant-current voltage-stabilizing unit and the charging circuit are equal
Connection, charging voltage and charging when open-circuit voltage and real-time detection are charged during for detecting that the intrinsic safety mine lamp is uncharged
Electric current, and the DC/DC direct current transducers and the charging circuit unit are controlled to the intrinsic safety mine lamp charging.
In the embodiment of the present invention, the charging circuit includes sampling resistor, fixed resistance and can power transformation
Resistance, the detection control unit includes CPU board, the first preposition shaping circuit and the second preposition shaping circuit；The sampling electricity
The input of resistance connects the voltage output end of the DC/DC direct current transducers, and output end connects filling for the intrinsic safety mine lamp simultaneously
The input of electrical input and fixed resistance, the output end of the fixed resistance connects the input of the variable resistor, described
Variable resistor output head grounding；First shaping circuit is connected between the charging input end and earth terminal of the intrinsic safety mine lamp,
Output end is connected to the first input end of the CPU board, open-circuit voltage and is filled during for detecting that the intrinsic safety mine lamp is uncharged
Charging voltage when electric；The input of second shaping circuit is connected to the two ends of sampling resistor, and output end is connected to described
Second input of CPU board, for detecting charging current during charging；First output end of the CPU board is connected to the DC/
The control end of DC direct current transducers, for DC/DC direct current transducers described in switching, controls the start and stop of charging；The CPU
Second output end of plate is connected to the control end of the variable resistor, the resistance for adjusting variable resistor, controls charging voltage.
In further improvement of the present invention, the input of the variable resistor is additionally coupled to the DC/DC direct currents conversion
The feedback end of device.Feedback end has the effect for stablizing DC/DC direct current transducer output voltages, when the voltage that feedback end is received is high
When voltage as defined in feedback end, DC/DC direct current transducers will reduce output voltage, the voltage received until feedback end with
Defined voltage is identical；When the voltage that feedback end is received is less than voltage as defined in feedback end, DC/DC direct current transducers will
Automatic lifting output voltage, until the voltage that feedback end is received is identical with defined voltage, so, by feedback end, is played
The effect of regulated output voltage.
In addition, the present invention also provides a kind of charging method of intrinsic safety mine lamp, this method is：
Detection control unit first closes DC/DC direct current transducers, detection control unit first measure intrinsic safety mine lamp it is uncharged when
Open-circuit voltage U0；
Detection control unit opens DC/DC direct current transducers, and intrinsic safety mine lamp is pre-charged, and detection control unit measures intrinsic safety
Pre-charge voltage U when mine lamp is pre-chargedIn advanceWith pre-charge current IIn advance；
Detection control unit calculates current-limiting resistance R, the R=(U of intrinsic safety mine lampIn advance-U0)/IIn advance；
Detection control unit controls the DC/DC direct current transducers and the charging circuit unit with constant current IcTo described
Intrinsic safety mine lamp carries out constant-current charge, and as rechargeable battery both end voltage rises the charging electricity at constantly adjustment intrinsic safety mine lamp two ends
Pressure, until reaching the maximum charging voltage U of intrinsic safety mine lampmax=Uc+RIc, UcFor the maximum charging voltage of rechargeable battery；Afterwards,
Detection control unit controls the DC/DC direct current transducers and the charging circuit unit gradually to reduce the intrinsic safety of output
The charging voltage of mine lamp with ensure the rechargeable battery both end voltage remain maximum charging voltage Uc, until charging complete.
Using above-mentioned technical proposal, the present invention realizes the current-limiting resistance that can measure intrinsic safety mine lamp and according to measuring
Current-limiting resistance controls charging voltage and charging current, and then causes intrinsic safety mine lamp charging to reach the complete effect of charging.
Brief description of the drawings
The present invention is further detailed with reference to the accompanying drawings and detailed description:
Fig. 1 is electrical block diagram of the invention.
Embodiment
As shown in figure 1, the charging system of intrinsic safety mine lamp of the present invention, can realize and intrinsic safety mine lamp 100 is charged, intrinsic safety ore deposit
There is rechargeable battery 101 and the current-limiting resistance 102 concatenated with rechargeable battery 101 in lamp 100.The Charging of intrinsic safety mine lamp of the present invention
System includes detection control unit, DC/DC direct current transducers and charging circuit unit.
Wherein, detection control unit includes CPU board, the first preposition shaping circuit and the second preposition shaping circuit.First
Preposition shaping circuit and the second preposition shaping circuit be used for circuit-under-test with CPU progress is necessary isolates, tested signal
Size is adjusted, to match the sample circuit of CPU board.CPU board is then used to gather charging voltage and charging current, calculates battery
Current-limiting resistance, control charging circuit start and close, and according to the charging curve of lithium battery adjust output charging voltage, with
Reach the complete effect of charging.
CPU board has A/D2 pin as first input end, with A/D1 pin as the second input, with I/O pin conducts
First output end, the second output end is used as with 12C pin.DC/DC direct current transducers have V0Pin, FB pin, EN pin and GND
Pin.V0Pin is the voltage output end of DC/DC direct current transducers, and power supply is provided for charging circuit unit.EN pin are that DC/DC direct currents turn
The enable control end of parallel operation, for switching DC/DC converters with control charging start and stop.FB pin are that DC/DC direct currents turn
The feedback end of parallel operation regulated output voltage, when the voltage for accessing FB pin is higher than voltage as defined in FB pin, DC/DC converters will
Output voltage is reduced, until the input voltage of FB pin is identical with defined voltage；When FB pin input voltage is less than as defined in FB pin
During voltage, DC/DC converters will lifting output voltage automatically, until the input voltage of FB pin is identical with defined voltage, this
Sample, by this feedback end of FB pin, plays a part of regulated output voltage.GND pin are the earth terminals of DC/DC converters, are used for
Ground connection.
Charging circuit unit includes sampling resistor R1, fixed resistance R2 and variable resistor Rj.In the present embodiment, sample
Resistance R1 resistance is 100 milliohms, and the resistance of fixed resistance is 10 kilo-ohms.Variable resistor Rj uses digital regulation resistance, resistance model
Enclose for 0~50 kilo-ohm.Sampling resistor R1 input is connected to voltage output end (the i.e. V of DC/DC converters0Pin), sampling electricity
R1 output end is hindered while be connected resistance R2 input and the charging input end of intrinsic safety mine lamp 100, fixed resistance R2
Output end connection variable resistor Rj input, variable resistor Rj input is additionally coupled to the feedback end of DC/DC converters
(i.e. FB pin).The ground connection of the earth terminals (i.e. GND pin) of DC/DC converters, the Rj of variable resistor output end and intrinsic safety mine lamp
End is grounded.
Between the charging input end and earth terminal of the input connection intrinsic safety mine lamp of first preposition shaping circuit, output end connects
It is connected to the first input end (i.e. A/D2 pin) of CPU board, the voltage for gathering intrinsic safety mine lamp two ends (i.e. sampled point a1 and a2),
The input of two preposition shaping circuits is connected to sampling resistor R1 two ends (i.e. sampled point b1 and b2), and output end is connected to CPU
The second input (i.e. A/D1 pin) of plate, for gathering charging current.The first output end (i.e. I/O pin) connection DC/DC of CPU board
The enable control end (i.e. EN pin) of direct current transducer, the output end of CPU board second (i.e. 12C pin) connection variable resistor Rj control
End, for adjusting charging voltage of the output to intrinsic safety mine lamp.
It is exactly the charging system of the intrinsic safety mine lamp of the present invention above, its working method is as follows：
Detection control unit first closes DC/DC direct current transducers, detection control unit first measure intrinsic safety mine lamp it is uncharged when
Open-circuit voltage U0；
Detection control unit opens DC/DC direct current transducers, and intrinsic safety mine lamp is pre-charged, and detection control unit measures intrinsic safety
Pre-charge voltage U when mine lamp is pre-chargedIn advanceWith pre-charge current IIn advance；
Detection control unit calculates current-limiting resistance R, the R=(U of intrinsic safety mine lampIn advance-U0)/IIn advance,
Detection control unit controls DC/DC direct current transducers and charging circuit unit with constant current IcIntrinsic safety mine lamp is carried out
Constant-current charge, and as rechargeable battery both end voltage rises the charging voltage at constantly adjustment intrinsic safety mine lamp two ends, until reaching this
Pacify the maximum charging voltage U of mine lampmax=Uc+RIc, UcFor the maximum charging voltage of rechargeable battery, the present embodiment is 4.2V；It
Afterwards, with the increase of battery capacity, charging current can progressively decline, therefore, detection control unit control DC/DC direct current transducers
And charging circuit unit (in the present embodiment, in particular adjusting variable resistor Rj resistance) gradually reduces the intrinsic safety ore deposit of output
The charging voltage of lamp ensures that rechargeable battery both end voltage remains the charging voltage (i.e. 4.2V) of maximum, until charging complete.It is logical
Cross the intrinsic safety mine lamp for gradually reducing output charging voltage adapted to charging charging stream needs be gradually reduced the need for, can avoid
Rechargeable battery is overcharged damage.
The present invention realizes the current-limiting resistance that can measure intrinsic safety mine lamp and is controlled to charge according to the current-limiting resistance measured
Voltage and charging current, and then cause intrinsic safety mine lamp charging to reach the complete effect of charging.The present invention carries out charging curve by CPU
Automatically control, can adaptively be charged according to Utopian charging curve, battery is obtained good maintenance.
Claims (4)
1. there is rechargeable battery and current-limiting resistance in a kind of charging system of intrinsic safety mine lamp, the intrinsic safety mine lamp, it is characterised in that：
Including detection control unit, DC/DC direct current transducers and charging circuit unit；The charging circuit unit is connected to DC/DC
Between direct current transducer and intrinsic safety mine lamp, the detection control unit and the constant-current voltage-stabilizing unit connect with the charging circuit
Connect, charging voltage and charging electricity when open-circuit voltage and real-time detection are charged during for detecting that the intrinsic safety mine lamp is uncharged
Stream, and the DC/DC direct current transducers and the charging circuit unit are controlled to the intrinsic safety mine lamp charging.
2. the charging system of intrinsic safety mine lamp according to claim 1, it is characterised in that：The charging circuit includes sampling electricity
Resistance, fixed resistance and variable resistor, the detection control unit are included before CPU board, the first preposition shaping circuit and second
Put shaping circuit；The input of the sampling resistor connects the voltage output end of the DC/DC direct current transducers, and output end is simultaneously
The charging input end of the intrinsic safety mine lamp and the input of fixed resistance are connected, the output end connection of the fixed resistance is described can
Become the input of resistance, the variable resistor output head grounding；First shaping circuit connects the charging of the intrinsic safety mine lamp
Between input and earth terminal, output end is connected to the first input end of the CPU board, for detecting that the intrinsic safety mine lamp does not fill
When electric open-circuit voltage and charging when charging voltage；The input of second shaping circuit is connected to the two of sampling resistor
End, output end is connected to the second input of the CPU board, for detecting charging current during charging；The first of the CPU board
Output end is connected to the control end of the DC/DC direct current transducers, for DC/DC direct current transducers described in switching, control
Make the start and stop of charging；Second output end of the CPU board is connected to the control end of the variable resistor, for adjusting variable resistor
Resistance, control charging voltage.
3. the charging system of intrinsic safety mine lamp according to claim 1, it is characterised in that：According to the input of the variable resistor
End is additionally coupled to the feedback end of the DC/DC direct current transducers.
4. a kind of charging method of intrinsic safety mine lamp, it is characterised in that：Using the charging system of the intrinsic safety mine lamp described in claim 1
Charge as follows：
Detection control unit first closes DC/DC direct current transducers, detection control unit first measure intrinsic safety mine lamp it is uncharged when open
Road voltage U0；
Detection control unit opens DC/DC direct current transducers, and intrinsic safety mine lamp is pre-charged, and detection control unit measures intrinsic safety mine lamp
Pre-charge voltage U during prechargeIn advanceWith pre-charge current IIn advance；
Detection control unit calculates current-limiting resistance R, the R=(U of intrinsic safety mine lampIn advance-U0)/IIn advance,
Detection control unit controls the DC/DC direct current transducers and the charging circuit unit with constant current IcTo the intrinsic safety
Mine lamp carries out constant-current charge, and as rechargeable battery both end voltage rises the charging voltage at constantly adjustment intrinsic safety mine lamp two ends, directly
To the maximum charging voltage U for reaching intrinsic safety mine lampmax=Uc+RIc, UcFor the maximum charging voltage of rechargeable battery；Afterwards, detection control
The unit control DC/DC direct current transducers processed and the charging circuit unit gradually reduce the intrinsic safety mine lamp of output
Charging voltage with ensure the rechargeable battery both end voltage remain maximum charging voltage Uc, until charging complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667324.4A CN107294177B (en) | 2017-08-07 | 2017-08-07 | Intrinsic safety miner lamp charging system and charging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667324.4A CN107294177B (en) | 2017-08-07 | 2017-08-07 | Intrinsic safety miner lamp charging system and charging method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107294177A true CN107294177A (en) | 2017-10-24 |
| CN107294177B CN107294177B (en) | 2023-07-04 |
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| CN201710667324.4A Active CN107294177B (en) | 2017-08-07 | 2017-08-07 | Intrinsic safety miner lamp charging system and charging method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186471A1 (en) * | 2004-02-19 | 2005-08-25 | Dbt Automation Gmbh | Intrinsically-safe battery power supply for underground mining |
| CN101232200A (en) * | 2007-01-24 | 2008-07-30 | 中国科学院自动化研究所 | Substance safe type uninterruptible DC voltage stabilizing power source for explosive gas atmosphere |
| US20090142629A1 (en) * | 2004-02-19 | 2009-06-04 | Jens Titschert | Intrinsically-safe battery power supply for underground mining |
| CN101867298A (en) * | 2010-07-03 | 2010-10-20 | 太原理工大学 | Intrinsically-safe power supply device for mining |
| CN104362727A (en) * | 2014-09-23 | 2015-02-18 | 太原理工大学 | STM32-based mining intrinsic safety power source charger device |
| WO2015024731A2 (en) * | 2013-08-20 | 2015-02-26 | Commissariat à l'énergie atomique et aux énergies alternatives | Device for balancing the charge of the elements of a power battery |
| CN207218289U (en) * | 2017-08-07 | 2018-04-10 | 上海山源电子科技股份有限公司 | Intrinsically safe miner lamp charging device |
-
2017
- 2017-08-07 CN CN201710667324.4A patent/CN107294177B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186471A1 (en) * | 2004-02-19 | 2005-08-25 | Dbt Automation Gmbh | Intrinsically-safe battery power supply for underground mining |
| US20090142629A1 (en) * | 2004-02-19 | 2009-06-04 | Jens Titschert | Intrinsically-safe battery power supply for underground mining |
| CN101232200A (en) * | 2007-01-24 | 2008-07-30 | 中国科学院自动化研究所 | Substance safe type uninterruptible DC voltage stabilizing power source for explosive gas atmosphere |
| CN101867298A (en) * | 2010-07-03 | 2010-10-20 | 太原理工大学 | Intrinsically-safe power supply device for mining |
| WO2015024731A2 (en) * | 2013-08-20 | 2015-02-26 | Commissariat à l'énergie atomique et aux énergies alternatives | Device for balancing the charge of the elements of a power battery |
| CN104362727A (en) * | 2014-09-23 | 2015-02-18 | 太原理工大学 | STM32-based mining intrinsic safety power source charger device |
| CN207218289U (en) * | 2017-08-07 | 2018-04-10 | 上海山源电子科技股份有限公司 | Intrinsically safe miner lamp charging device |
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| Publication number | Publication date |
|---|---|
| CN107294177B (en) | 2023-07-04 |
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Address after: Room 209, 2nd Floor, Building 3, No. 588 Caolong Road, Songjiang District, Shanghai, 2016 Patentee after: Shanghai Sany Electronic Technology Co.,Ltd. Country or region after: China Address before: Room 505, building 23, 518, Xinzhuan Road, Songjiang high tech park, Caohejing Development Zone, Songjiang District, Shanghai 201100 Patentee before: Shanghai Sany Electronic Technology Co.,Ltd. Country or region before: China |