CN107276194A - Anti-explosion electric forklift safety charger - Google Patents
Anti-explosion electric forklift safety charger Download PDFInfo
- Publication number
- CN107276194A CN107276194A CN201710693473.8A CN201710693473A CN107276194A CN 107276194 A CN107276194 A CN 107276194A CN 201710693473 A CN201710693473 A CN 201710693473A CN 107276194 A CN107276194 A CN 107276194A
- Authority
- CN
- China
- Prior art keywords
- circuit
- charging
- voltage
- alternating current
- detection
- 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.)
- Pending
Links
- 238000004880 explosion Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims description 58
- 238000001914 filtration Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 3
- 238000013519 translation Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 6
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- H02J7/045—
-
- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H02J2007/10—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to charger technical field; specifically a kind of Anti-explosion electric forklift with safety charger housing be provided with PCB; it is characterized in that PCB is provided with self-protection circuit; the self-protection circuit automatically adjusts including power transformer, rectification circuit, voltage, reversed protection circuit, sufficient automatic power-off circuit; wherein power transformer is connected with rectification circuit, and the output end of rectification circuit is connected with reversed protection circuit, sufficient automatic power-off circuit respectively；Charging circuit is additionally provided with PCB, the present invention compared with prior art, can significantly improve charger job stability and security, with the significant advantage such as rational in infrastructure, reliable operation.
Description
Technical field：
The present invention relates to charger technical field, specifically a kind of Anti-explosion electric forklift safety charger.
Background technology：
Electri forklift is as a kind of conventional logistics haulage equipment, using widely.With the progress of battery technology, more
Carry out more electri forklifts and use ferric phosphate lithium cell as energy storage component.Ferric phosphate lithium cell has many lead-acid batteries not look forward to
And advantage：Material environment friendly is unleaded, charge and discharge cycles number of times length, energy density are big and rate of charge is big etc., thus need to
Electri forklift configures high-power quick charger.
Traditional charger is typically using two kinds of design architectures：Low-frequency transformer framework and high frequency switch power framework.Before
Person is typically employed in lead-acid battery charger, and it has the disadvantage that big power volume, heaviness, charge efficiency are low, and the shortcoming of the latter is
Charging current is smaller, and when power ascension, it generates heat seriously, and the voltage stability of output is poor.
The content of the invention：
The present invention is for shortcoming and defect present in prior art, it is proposed that a kind of Anti-explosion electric forklift safe charging
Machine.
The present invention is reached by following measures：
A kind of electri forklift safety charger, provided with housing, opens up deformation component fixing hole, elastic membrane is fixed on housing
On deformation component fixing hole, housing is made of the good metal material of thermal conductivity, and housing exterior walls are provided with radiating fin and dissipate
Hot-air fan, housing is provided with waterproof vent valve and explosion-proof plug；PCB is provided with housing, it is characterised in that in PCB
Provided with self-protection circuit, the self-protection circuit automatically adjusts including power transformer, rectification circuit, voltage, reversed protection electricity
Road, sufficient automatic power-off circuit, wherein power transformer are connected with rectification circuit, the output end of rectification circuit respectively with it is reversed
Protection circuit, sufficient automatic power-off circuit are connected；Charging circuit, one end of the charging circuit are additionally provided with PCB
It is electrically connected with exchanging for input, the other end of the charging circuit is connected with the electrokinetic cell, the charging circuit is to described
The alternating current of input enters line translation and supplies the first direct current of the electrokinetic cell to export；The exchange of the input is detected in real time
The three-phase alternating voltage of electricity, the AC detection circuit of three-phase alternating current and phase；The charging of the electrokinetic cell is detected in real time
The DC detection circuit of voltage and charging current；And controller, the controller respectively with the AC detection circuit, described
DC detection circuit is connected with the charging circuit, charging voltage and charging current that controller is detected according to DC detection circuit
Judge the mode of operation of charging circuit, and the three-phase alternating current of the alternating current of the input detected according to AC detection circuit
The charging voltage and charging current that pressure, three-phase alternating current, phase and DC detection circuit are detected control charging circuit to adjust
Save the voltage range of the first direct current.
Voltage auto-adjusting circuit of the present invention by diode D3, electric capacity C1 and diode D1, D2 and triode G1, after
The loop of electrical equipment J1 compositions.
Reversed protection circuit of the present invention by triode G2, relay J3 and resistance R3 distinguish connecting valve K3, K4 and
K5、K6。
Sufficient automatic power-off circuit of the present invention it is main by relay J2, triode G3, diode D6 and resistance R4,
R5, R6 constitute loop.
Charging circuit of the present invention includes：Electromagnetic interference EMI filter circuit, one end of the EMI filter circuit and institute
The exchange for stating input is electrically connected, and the EMI filter circuit is handled the alternating current of the input to export the first alternating current；
Rectification circuit, one end of the rectification circuit is connected with the other end of the EMI filter circuit, and the rectification circuit is by described
One alternating current is converted to the second direct current；DC filtering circuit, one end and the rectification circuit of the DC filtering circuit
The other end is connected, and the other end of the DC filtering circuit is connected with the electrokinetic cell, and the DC filtering circuit is to described
Second direct current is filtered processing to export first direct current.
AC detection circuit of the present invention includes：Alternating voltage and phase detection unit, the alternating voltage and phase
One end of detection unit is connected with one end of the EMI filter circuit, the other end of the alternating voltage and phase detection unit
It is connected with the controller；Alternating current detection unit, one end and the EMI filter circuit of the alternating current detection unit
The other end be connected, the other end of the alternating current detection unit is connected with the controller.
DC detection circuit of the present invention includes：Direct current detection unit, the one of the direct current detection unit
End is connected with one end of the electrokinetic cell, and the other end of the direct current detection unit is connected with the controller；Direct current
Voltage detection unit, the DC voltage detection unit is connected to the two ends of the electrokinetic cell, and the DC voltage is detected
Unit is connected with the controller.
Rectification circuit of the present invention is three-phase full-bridge controlled rectifier, and the DC filtering circuit is LC filtered electricals
Road.
Wireless communication module and serial communication circuit are additionally provided with PCB of the present invention, for upper with outside
Machine carries out data communication, completes the setting and replacing of charging curve.
The present invention compared with prior art, can significantly improve charger job stability and security, be closed with structure
The significant advantage such as reason, reliable operation.
Brief description of the drawings：
Accompanying drawing 1 is the structured flowchart of the present invention.
Reference：Self-protection circuit 1, charging circuit 2, AC detection circuit 3, DC detection circuit 4, controller 5.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in drawings, the present invention proposes a kind of electri forklift safety charger, provided with housing, and deformation is opened up on housing
Component fixing hole, elastic membrane is fixed on deformation component fixing hole, and housing is made of the good metal material of thermal conductivity, outside housing
Wall is provided with radiating fin and radiator fan, and housing is provided with waterproof vent valve and explosion-proof plug；PCB circuits are provided with housing
Plate, it is characterised in that PCB is provided with self-protection circuit 1, the self-protection circuit includes power transformer, rectified current
Road, voltage are automatically adjusted, reversed protection circuit, sufficient automatic power-off circuit, and wherein power transformer is connected with rectification circuit,
The output end of rectification circuit is connected with reversed protection circuit, sufficient automatic power-off circuit respectively；It is additionally provided with and fills in PCB
Circuit 2, one end of the charging circuit is electrically connected with exchanging for input, the other end of the charging circuit and the power electric
Pond is connected, and the charging circuit enters line translation to the alternating current of the input and supplies the first direct current of the electrokinetic cell to export
Electricity；The AC detection circuit 3 of the three-phase alternating voltage, three-phase alternating current and phase of the alternating current of the input is detected in real time；
The charging voltage of the electrokinetic cell and the DC detection circuit 4 of charging current are detected in real time；And controller 5, the control
Device is connected with the AC detection circuit, the DC detection circuit and the charging circuit respectively, and controller is examined according to direct current
The charging voltage and charging current of slowdown monitoring circuit detection judge the mode of operation of charging circuit, and detected according to AC detection circuit
Three-phase alternating voltage, three-phase alternating current, phase and the charging electricity of DC detection circuit detection of the alternating current of the input
Pressure and charging current control charging circuit to adjust the voltage range of the first direct current.
Voltage auto-adjusting circuit of the present invention by diode D3, electric capacity C1 and diode D1, D2 and triode G1, after
The loop of electrical equipment J1 compositions.
Reversed protection circuit of the present invention by triode G2, relay J3 and resistance R3 distinguish connecting valve K3, K4 and
K5、K6。
Sufficient automatic power-off circuit of the present invention it is main by relay J2, triode G3, diode D6 and resistance R4,
R5, R6 constitute loop.
Charging circuit of the present invention includes：Electromagnetic interference EMI filter circuit, one end of the EMI filter circuit and institute
The exchange for stating input is electrically connected, and the EMI filter circuit is handled the alternating current of the input to export the first alternating current；
Rectification circuit, one end of the rectification circuit is connected with the other end of the EMI filter circuit, and the rectification circuit is by described
One alternating current is converted to the second direct current；DC filtering circuit, one end and the rectification circuit of the DC filtering circuit
The other end is connected, and the other end of the DC filtering circuit is connected with the electrokinetic cell, and the DC filtering circuit is to described
Second direct current is filtered processing to export first direct current.
AC detection circuit of the present invention includes：Alternating voltage and phase detection unit, the alternating voltage and phase
One end of detection unit is connected with one end of the EMI filter circuit, the other end of the alternating voltage and phase detection unit
It is connected with the controller；Alternating current detection unit, one end and the EMI filter circuit of the alternating current detection unit
The other end be connected, the other end of the alternating current detection unit is connected with the controller.
DC detection circuit of the present invention includes：Direct current detection unit, the one of the direct current detection unit
End is connected with one end of the electrokinetic cell, and the other end of the direct current detection unit is connected with the controller；Direct current
Voltage detection unit, the DC voltage detection unit is connected to the two ends of the electrokinetic cell, and the DC voltage is detected
Unit is connected with the controller.
Rectification circuit of the present invention is three-phase full-bridge controlled rectifier, and the DC filtering circuit is LC filtered electricals
Road.
Wireless communication module and serial communication circuit are additionally provided with PCB of the present invention, for upper with outside
Machine carries out data communication, completes the setting and replacing of charging curve.
The present invention compared with prior art, can significantly improve charger job stability and security, be closed with structure
The significant advantage such as reason, reliable operation.
Claims (6)
1. a kind of electri forklift safety charger, provided with housing, provided with housing, opens up deformation component fixing hole on housing, elasticity
Film is fixed on deformation component fixing hole, and housing is made of the good metal material of thermal conductivity, and housing exterior walls are provided with heat radiating fin
Piece and radiator fan, housing are provided with waterproof vent valve and explosion-proof plug；PCB is provided with housing, it is characterised in that PCB
Circuit board is provided with self-protection circuit, and the self-protection circuit includes power transformer, rectification circuit, voltage and automatically adjusts, connects
Anti- protection circuit, sufficient automatic power-off circuit, wherein power transformer are connected with rectification circuit, the output end point of rectification circuit
It is not connected with reversed protection circuit, sufficient automatic power-off circuit；Charging circuit, the charging electricity are additionally provided with PCB
The one end on road is electrically connected with exchanging for input, and the other end of the charging circuit is connected with the electrokinetic cell, the charging electricity
Road enters line translation to the alternating current of the input and supplies the first direct current of the electrokinetic cell to export；Detect described defeated in real time
The AC detection circuit of the three-phase alternating voltage of the alternating current entered, three-phase alternating current and phase；The power electric is detected in real time
The charging voltage in pond and the DC detection circuit of charging current；And controller, the controller exchanges detection with described respectively
Circuit, the DC detection circuit are connected with the charging circuit, the charging voltage that controller is detected according to DC detection circuit
The mode of operation of charging circuit, and the three of the alternating current of the input detected according to AC detection circuit are judged with charging current
Cross streams voltage, three-phase alternating current, phase and the charging voltage of DC detection circuit detection and charging current control charging
Circuit is to adjust the voltage range of the first direct current.
2. a kind of electri forklift safety charger according to claim 1, it is characterised in that the voltage automatically adjusts electricity
It route the loop that diode D 3, electric capacity C 1 are constituted with diode D 1, D 2 and triode G 1, relay J 1.
3. a kind of electri forklift safety charger according to claim 1, it is characterised in that the reversed protection circuit by
Triode G 2, relay J 3 and the difference connecting valves of resistance R 3 K 3, K 4 and K 5, K 6.
4. a kind of electri forklift safety charger according to claim 1, it is characterised in that the abundance automatically powers off electricity
Road mainly constitutes loop by relay J 2, triode G 3, diode D 6 and resistance R 4, R 5, R 6.
5. a kind of electri forklift safety charger according to claim 1, it is characterised in that the charging circuit includes：Electricity
Magnetic disturbance EMI filter circuit, one end of the EMI filter circuit is electrically connected with exchanging for the input, the EMI filter circuit
The alternating current of the input is handled to export the first alternating current；Rectification circuit, one end of the rectification circuit with it is described
The other end of EMI filter circuit is connected, and first alternating current is converted to the second direct current by the rectification circuit；DC filtering
Circuit, one end of the DC filtering circuit is connected with the other end of the rectification circuit, the DC filtering circuit it is another
End is connected with the electrokinetic cell, and the DC filtering circuit is filtered to second direct current to be handled to export described the
One direct current.
6. a kind of electri forklift safety charger according to claim 1, it is characterised in that the AC detection circuit bag
Include：Alternating voltage and phase detection unit, one end and the EMI filter circuit of the alternating voltage and phase detection unit
One end is connected, and the other end of the alternating voltage and phase detection unit is connected with the controller；Alternating current detection unit,
One end of the alternating current detection unit is connected with the other end of the EMI filter circuit, the alternating current detection unit
The other end be connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693473.8A CN107276194A (en) | 2017-08-14 | 2017-08-14 | Anti-explosion electric forklift safety charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693473.8A CN107276194A (en) | 2017-08-14 | 2017-08-14 | Anti-explosion electric forklift safety charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107276194A true CN107276194A (en) | 2017-10-20 |
Family
ID=60080046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710693473.8A Pending CN107276194A (en) | 2017-08-14 | 2017-08-14 | Anti-explosion electric forklift safety charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107276194A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769344A (en) * | 2017-12-06 | 2018-03-06 | 合肥国盛电池科技有限公司 | Compatible type electri forklift battery pack charging control device |
| CN107808942A (en) * | 2017-12-07 | 2018-03-16 | 合肥国盛电池科技有限公司 | Self-shield vehicle mounted electric pitches Vehicular battery management system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454967Y (en) * | 2000-12-06 | 2001-10-17 | 谭广利 | Autoamtic-protection charging machine |
| CN202513610U (en) * | 2012-03-23 | 2012-10-31 | 郑州佛光发电设备有限公司 | Charging device |
| CN103532206A (en) * | 2013-10-31 | 2014-01-22 | 国家电网公司 | Charging post |
| CN204425018U (en) * | 2015-01-26 | 2015-06-24 | 比亚迪股份有限公司 | Electri forklift and the charging system for electri forklift |
-
2017
- 2017-08-14 CN CN201710693473.8A patent/CN107276194A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454967Y (en) * | 2000-12-06 | 2001-10-17 | 谭广利 | Autoamtic-protection charging machine |
| CN202513610U (en) * | 2012-03-23 | 2012-10-31 | 郑州佛光发电设备有限公司 | Charging device |
| CN103532206A (en) * | 2013-10-31 | 2014-01-22 | 国家电网公司 | Charging post |
| CN204425018U (en) * | 2015-01-26 | 2015-06-24 | 比亚迪股份有限公司 | Electri forklift and the charging system for electri forklift |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769344A (en) * | 2017-12-06 | 2018-03-06 | 合肥国盛电池科技有限公司 | Compatible type electri forklift battery pack charging control device |
| CN107808942A (en) * | 2017-12-07 | 2018-03-16 | 合肥国盛电池科技有限公司 | Self-shield vehicle mounted electric pitches Vehicular battery management system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171020 |