CN107364361A - Electri forklift safety charger - Google Patents

Electri forklift safety charger Download PDF

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Publication number
CN107364361A
CN107364361A CN201710692441.6A CN201710692441A CN107364361A CN 107364361 A CN107364361 A CN 107364361A CN 201710692441 A CN201710692441 A CN 201710692441A CN 107364361 A CN107364361 A CN 107364361A
Authority
CN
China
Prior art keywords
circuit
charging
alternating current
voltage
phase
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
Application number
CN201710692441.6A
Other languages
Chinese (zh)
Inventor
项寿南
陈建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Hua Sky New Energy Science And Technology Ltd Co
Original Assignee
Anhui Hua Sky New Energy Science And Technology Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Hua Sky New Energy Science And Technology Ltd Co filed Critical Anhui Hua Sky New Energy Science And Technology Ltd Co
Priority to CN201710692441.6A priority Critical patent/CN107364361A/en
Publication of CN107364361A publication Critical patent/CN107364361A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • H02J7/0026—
    • 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
    • H02J7/045—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B60L2200/42—Fork lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to charger technical field; specifically a kind of electri forklift is with being provided with PCB in safety charger housing; it is characterized in that PCB is provided with self-protection circuit; the self-protection circuit includes power transformer, rectification circuit, voltage automatically adjust, 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, have the advantages of rational in infrastructure, reliable operation etc. is notable.

Description

Electri forklift safety charger
Technical field：
The present invention relates to charger technical field, specifically a kind of electri forklift safety charger.
Background technology：
Electri forklift is as a kind of conventional logistics haulage equipment, using very extensive.With the progress of battery technology, get over 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 the advantages of：Material environment friendly is unleaded, charge and discharge cycles number is long, energy density is big and rate of charge is big etc., thus need to Electri forklift configures high-power quick charger.
Traditional charger typically uses 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 its shortcoming is that power volume is big, heavy, charge efficiency is low, is the shortcomings that the latter 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 electri forklift safety charger.
The present invention is reached by following measures：
A kind of electri forklift safety charger, provided with housing, it is provided with PCB in housing, it is characterised in that PCB circuits Plate is provided with self-protection circuit, the self-protection circuit include power transformer, rectification circuit, voltage automatically adjust, reversed guarantor Protection circuit, sufficient automatic power-off circuit, wherein power transformer are connected with rectification circuit, the output end of rectification circuit respectively with Reversed protection circuit, sufficient automatic power-off circuit are connected；Charging circuit is additionally provided with PCB, the charging circuit One end is electrically connected with exchanging for input, and the other end of the charging circuit is connected with the electrokinetic cell, the charging circuit pair The alternating current of the input enters line translation and supplies the first direct current of the electrokinetic cell to export；The input is detected in real time The AC detection circuit of the three-phase alternating voltage of alternating current, three-phase alternating current and phase；The electrokinetic cell is detected in real time The DC detection circuit of charging voltage and charging current；And controller, the controller respectively with the AC detection circuit, The DC detection circuit is connected with the charging circuit, the charging voltage and charging that controller detects according to DC detection circuit Electric current judges 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 Voltage, three-phase alternating current, phase and DC detection circuit detection charging voltage and charging current control charging circuit with 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 mainly by relay J2, triode G3, diode D6 and resistance R4, R5, R6 form 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 are 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 both ends of the electrokinetic cell, and the DC voltage detects 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, and there is structure to close The advantages of reason, reliable operation etc. are notable.
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, and provided with housing, PCB is provided with housing Circuit board, it is characterised in that PCB is provided with self-protection circuit 1, and the self-protection circuit includes power transformer, rectification Circuit, voltage automatically adjust, reversed protection circuit, sufficient automatic power-off circuit, and wherein power transformer is connected with rectification circuit Connect, the output end of rectification circuit is connected with reversed protection circuit, sufficient automatic power-off circuit respectively；Also set in PCB There is charging circuit 2, one end of the charging circuit is electrically connected with exchanging for input, and the other end of the charging circuit moves with described Power battery is connected, and the charging circuit enters line translation to export the first of the supply electrokinetic cell to the alternating current of the input Direct current；The three-phase alternating voltage of the alternating current of the input is detected in real time, three-phase alternating current exchanges detection electricity with phase Road 3；The charging voltage of the electrokinetic cell and the DC detection circuit 4 of charging current are detected in real time；And controller 5, it is described Controller is connected with the AC detection circuit, the DC detection circuit and the charging circuit respectively, and controller is according to straight The charging voltage and charging current of current detection circuit detection judge the mode of operation of charging circuit, and are examined according to AC detection circuit What three-phase alternating voltage, three-phase alternating current, phase and the DC detection circuit of the alternating current for the input surveyed detected fills Piezoelectric voltage 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 mainly by relay J2, triode G3, diode D6 and resistance R4, R5, R6 form 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 are 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 both ends of the electrokinetic cell, and the DC voltage detects 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, and there is structure to close The advantages of reason, reliable operation etc. are notable.

Claims (6)

1. a kind of electri forklift safety charger, provided with housing, it is provided with PCB in housing, it is characterised in that PCB Be provided with self-protection circuit, the self-protection circuit include power transformer, rectification circuit, voltage automatically adjust, reversed protection Circuit, sufficient automatic power-off circuit, wherein power transformer are connected with rectification circuit, and the output end of rectification circuit is respectively with connecing Anti- protection circuit, sufficient automatic power-off circuit are connected；It is additionally provided with charging circuit in PCB, the one of the charging circuit Hold and be electrically connected with exchanging for input, the other end of the charging circuit is connected with the electrokinetic cell, and the charging circuit is to institute The alternating current for stating input enters line translation and supplies the first direct current of the electrokinetic cell to export；The friendship of the input is detected in real time Flow the AC detection circuit of electric three-phase alternating voltage, three-phase alternating current and phase；Filling for the electrokinetic cell is detected in real time The DC detection circuit of piezoelectric voltage and charging current；And controller, the controller respectively with the AC detection circuit, institute State DC detection circuit with the charging circuit to be connected, the charging voltage and charging electricity that controller detects according to DC detection circuit Stream judges 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 detect control charging circuit to adjust Save 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 form with diode D 1, D 2 and triode G 1, relay J 1.
A kind of 3. electri forklift safety charger according to claim 1, it is characterised in that the reversed protection circuit by Triode G 2, relay J 3 distinguish connecting valve K 3, K 4 and K 5, K 6 with resistance R 3.
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 forms 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 are 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 are 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.
A kind of 6. 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.
CN201710692441.6A 2017-08-14 2017-08-14 Electri forklift safety charger Pending CN107364361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710692441.6A CN107364361A (en) 2017-08-14 2017-08-14 Electri forklift safety charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710692441.6A CN107364361A (en) 2017-08-14 2017-08-14 Electri forklift safety charger

Publications (1)

Publication Number Publication Date
CN107364361A true CN107364361A (en) 2017-11-21

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CN201710692441.6A Pending CN107364361A (en) 2017-08-14 2017-08-14 Electri forklift safety charger

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107959337A (en) * 2017-12-05 2018-04-24 合肥国盛电池科技有限公司 Based on the compatible Vehicular battery group charging controller of charging
CN107979147A (en) * 2017-12-05 2018-05-01 合肥国盛电池科技有限公司 Lithium battery group control device based on Charge Management

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107959337A (en) * 2017-12-05 2018-04-24 合肥国盛电池科技有限公司 Based on the compatible Vehicular battery group charging controller of charging
CN107979147A (en) * 2017-12-05 2018-05-01 合肥国盛电池科技有限公司 Lithium battery group control device based on Charge Management

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Application publication date: 20171121