CN107591869A - A kind of electri forklift intelligent high frequency charger charge control system - Google Patents
A kind of electri forklift intelligent high frequency charger charge control system Download PDFInfo
- Publication number
- CN107591869A CN107591869A CN201710306861.6A CN201710306861A CN107591869A CN 107591869 A CN107591869 A CN 107591869A CN 201710306861 A CN201710306861 A CN 201710306861A CN 107591869 A CN107591869 A CN 107591869A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- chip microcomputer
- voltage
- controller
- current
- 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
Abstract
The invention discloses a kind of electri forklift intelligent high frequency charger charge control system, including switch converters and single-chip microcomputer, the switch converters are electrically connected with AC/DC circuits, the switch converters are electrically connected with current rectifying and wave filtering circuit, the current rectifying and wave filtering circuit is electrically connected with lead-acid battery, the lead-acid battery is electrically connected with voltage x current sampler, the voltage x current sampler is electrically connected with single-chip microcomputer signal input port, the processor is electrically connected with controller, the signal output port of the controller is electrically connected with alarm and LED charactrons, the signal output port of the controller is electrically connected with PWM controller and relay, the signal input port of the PWM controller and relay with switch converters is electrically connected with.The invention can expand the adjusting range of voltage x current, be adapted to the charging of different phase, detect voltage, electric current and temperature in real time during single-chip microcomputer, it is ensured that can completely fill, it is ensured that the safety of whole charging process.
Description
Technical field
The present invention relates to charger applied technical field, specially a kind of electri forklift intelligent high frequency charger charge control
System.
Background technology
The lead-acid battery high-frequency charger of market mainly has two aspect shortcomings at present, first, output voltage current range
It is narrow, it is only suitable for the battery charging of dead load；Second, charging when, charger be it is single detection battery terminal voltage and as electricity
Unique foundation that pond is fully charged.The charger of this mode, it is impossible to ensure that battery is full of, the voltage electricity of the charger
It is small to flow adjustable range, it is impossible to be adapted to the charging of different phase.Can not completely fill do not overcharge, the requirement of not charge less, can not realize
Real-time peripheral circuit fault detection capability, the safety of whole charging process can not be protected, so design production here one
Kind electri forklift intelligent high frequency charger charge control system, can not only ensure the elegant in appearance of its outward appearance, moreover it is possible to ensure it
Suitable for controlling whole operation flow.
The content of the invention
It is above-mentioned to solve it is an object of the invention to provide a kind of electri forklift intelligent high frequency charger charge control system
The problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of electri forklift intelligent high frequency charger charging
Control system, including switch converters and single-chip microcomputer, the switch converters are electrically connected with AC/DC circuits, and the switch becomes
Parallel operation is electrically connected with current rectifying and wave filtering circuit, and the current rectifying and wave filtering circuit is electrically connected with lead-acid battery, the lead-acid battery electricity
Property be connected with voltage x current sampler, the signal input port of the voltage x current sampler and single-chip microcomputer is electrically connected with, described
Single-chip microcomputer includes processor, and the processor is electrically connected with controller, and the signal output port of the controller electrically connects
PWM controller and relay are connected to, the signal input port of the PWM controller and relay with switch converters electrically connects
Connect.
Preferably, the switch change device includes switching power source chip, and the model of the switching power source chip is arranged to
SG2525。
Preferably, the signal output port of the controller is electrically connected with alarm and LED charactrons.
Preferably, the signal input port of the single-chip microcomputer is electrically connected with failure detector circuit.
Compared with prior art, the beneficial effects of the invention are as follows：The invention is a kind of electri forklift intelligent high frequency charger
Charge control system, voltage x current adjustable range is big, is adapted to the charging of different phase, detects voltage, electricity in real time during single-chip microcomputer
Stream and temperature, it is ensured that charge each time, can reach and completely fill, not overcharge, not charge less, real-time peripheral circuit fault detect work(
Can, it is ensured that entirely charging process is safe and reliable, simple and practical.
Brief description of the drawings
Fig. 1 is main body theory structure schematic diagram of the present invention.
In figure：1 AC/DC circuits, 2 switching power source chips, 3 switch converters, 4 current rectifying and wave filtering circuits, 5 lead-acid batteries, 6
Voltage x current sampler, 7 failure detector circuits, 8 single-chip microcomputers, 9 processors, 10 alarms, 11 controllers, the processing of 12 single-chip microcomputers
Device, 13 PWM controllers, 14 relays.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
, it is necessary to explanation in description of the invention, the orientation of instruction such as term " vertical ", " on ", " under ", " level " or
Person's position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description,
Rather than instruction either implies that signified device or element must have specific orientation, with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.
In description of the invention, it is also necessary to explanation, unless otherwise clear and definite regulation and limitation, term " setting ", " peace
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection, can be mechanical connection or electrical connection, can be directly connected to or be connected by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of electri forklift intelligent high frequency charger charge control system
System, including switch converters 3 and single-chip microcomputer 8, the switch converters 3 are electrically connected with AC/DC circuits 1, the switch change
Device 3 includes switching power source chip 2, and the model of the switching power source chip 2 is arranged to SG2525, the electricity of switch converters 3
Property is connected with current rectifying and wave filtering circuit 4, and the current rectifying and wave filtering circuit 4 is electrically connected with lead-acid battery 5, and the lead-acid battery 5 is electrical
Voltage x current sampler 6 is connected with, the signal input port of the voltage x current sampler 6 and single-chip microcomputer 8 is electrically connected with, described
The signal input port of single-chip microcomputer 8 is electrically connected with failure detector circuit 7, and the single-chip microcomputer 8 includes processor 9, the place
Reason device 9 is electrically connected with controller 11, and the signal output port of the controller 11 is electrically connected with alarm 10 and LED is digital
Pipe 12, LED charactrons 12 can be used for display the real-time sampling of single-chip microcomputer 8 to the voltage of lead-acid battery 5, charging current, charged when
Between and failure code, alarm 10 can be used for alarm, the signal output port of the controller 11 is electrically connected with PWM controller
13 and relay 14, the signal input port of the PWM controller 13 and relay 14 with switch converters 3 is electrically connected with,
When needing to adjust voltage and current, the circuit of single-chip microcomputer 8 simulates DA output quantities by PWM controller 13, through discharge circuit, this
The output voltage and electric current of sample Switching Power Supply will also change accordingly, and relay 14 acts and cuts off general supply, to carry
The safety and reliability of high charge.
Operation principle：The design uses voltage-controlled type pulse width modulation mode, and its whole work process is to input exchange
It is changed into high direct voltage after filtered, rectification, then by obtaining high frequency rectangular voltage after switching tube copped wave, high frequency transformer decompression, most
VD required for being obtained afterwards by output rectification filter, requirement of the system to Switching Power Supply are its exchange input electricity
It is 90 to 270V to press scope, can export+12V, and 30 to 45V voltage simultaneously, and output current is 10 to 30A, Switching Power Supply core
The model that piece 2 is set is arranged to SG2525, and temperature coefficient is high, and noise is low, when needing to adjust voltage and current, the electricity of single-chip microcomputer 8
Road simulates DA output quantities by PWM controller 13, and through discharge circuit, the output voltage and electric current of such Switching Power Supply also will
Change accordingly, after circuit connects lead-acid battery 5, charging process starts, and is hereafter examined by single-chip microcomputer 8 by sample resistance
Cell voltage is surveyed, lead-acid battery 5 makes voltage be less than normal range (NR) because of transient discharge if detecting, then, in order to avoid charging
Electric current is excessive and causes lead-acid battery 5 to damage, and should first carry out lead-acid battery 5 stable low current charge, meanwhile, single-chip microcomputer 8
Starting timing, single-chip microcomputer 8 will constantly detect the voltage of lead-acid battery 5 and charging current and including in LED charactrons 12 afterwards, with
The progress of charging, the voltage of lead-acid battery 5 constantly rises, and when rising to normal range (NR), single-chip microcomputer 8 can pass through PWM controller
13 adjust output voltage, and so as to be transferred to high current constant current charging method, hereafter, single-chip microcomputer 8 is always maintained at ceaselessly detecting electricity
Cell voltage, when voltage reaches setting value, single-chip microcomputer 8 sends instruction, is worth with adjusting PWM controller 13, and pass through SG2525 arteries and veins
Width modulation reduces output voltage, so that charging current reduces, when charging current is reduced to 1/5 when having rated current, then turns
For trickle charge, power supply is finally then closed in the charging interval, is so avoided because the temperature rise of lead-acid battery 5 is too fast or serious pole
Change and influence charging quality, the service life of lead-acid battery 5 is improved, when detecting the voltage of lead-acid battery 5, charging current and temperature
During more than 1/10 times of setting value, single-chip microcomputer 8 controls alarm 10 to alarm immediately, while acts relay 14 and cut off total electricity
Source, to improve the safety and reliability of charging, LED charactrons 12 can be used for the plumbic acid electricity that the display real-time sampling of single-chip microcomputer 8 arrives
The voltage of pond 5, charging current, charging interval and failure code.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of electri forklift intelligent high frequency charger charge control system, including switch converters (3) and single-chip microcomputer (8), its
It is characterised by：The switch converters (3) are electrically connected with AC/DC circuits (1), and the switch converters (3) are electrically connected with
Current rectifying and wave filtering circuit (4), the current rectifying and wave filtering circuit (4) are electrically connected with lead-acid battery (5), and the lead-acid battery (5) is electrical
Voltage x current sampler (6) is connected with, the voltage x current sampler (6) and the signal input port of single-chip microcomputer (8) electrically connect
Connect, the single-chip microcomputer (8) includes processor (9), and the processor (9) is electrically connected with controller (11), the controller
(11) signal output port is electrically connected with PWM controller (13) and relay (14), the PWM controller (13) and relay
Device (14) is electrically connected with the signal input port of switch converters (3).
A kind of 2. electri forklift intelligent high frequency charger charge control system according to claim 1, it is characterised in that：Institute
State switch change device (3) and include switching power source chip (2), the model of the switching power source chip (2) is arranged to SG2525.
A kind of 3. electri forklift intelligent high frequency charger charge control system according to claim 1, it is characterised in that：Institute
The signal output port for stating controller (11) is electrically connected with alarm (10) and LED charactrons (12).
A kind of 4. electri forklift intelligent high frequency charger charge control system according to claim 1, it is characterised in that：Institute
The signal input port for stating single-chip microcomputer (8) is electrically connected with failure detector circuit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306861.6A CN107591869A (en) | 2017-05-04 | 2017-05-04 | A kind of electri forklift intelligent high frequency charger charge control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710306861.6A CN107591869A (en) | 2017-05-04 | 2017-05-04 | A kind of electri forklift intelligent high frequency charger charge control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107591869A true CN107591869A (en) | 2018-01-16 |
Family
ID=61045700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710306861.6A Pending CN107591869A (en) | 2017-05-04 | 2017-05-04 | A kind of electri forklift intelligent high frequency charger charge control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107591869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403650A (en) * | 2020-03-27 | 2020-07-10 | 福建华祥电源科技有限公司 | High-efficient protection device of lead-acid batteries |
| CN116278963A (en) * | 2023-04-18 | 2023-06-23 | 安徽威斯姆电子科技有限公司 | Intelligent high-frequency charger of electric forklift and charging method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07298506A (en) * | 1994-04-22 | 1995-11-10 | Toyota Autom Loom Works Ltd | Charger |
| JPH11178232A (en) * | 1997-12-16 | 1999-07-02 | Canon Inc | Noncontact-charging type electronic equipment |
| CN202513610U (en) * | 2012-03-23 | 2012-10-31 | 郑州佛光发电设备有限公司 | Charging device |
| CN203434647U (en) * | 2013-06-05 | 2014-02-12 | 河南龙瑞新能源汽车有限公司 | Vehicle-borne high-frequency intelligent charger for electric vehicles |
| CN204068314U (en) * | 2014-07-02 | 2014-12-31 | 鞍山通尊科技企业孵化器有限公司 | A kind of electri forklift quick charger |
| CN105048613A (en) * | 2015-09-02 | 2015-11-11 | 泉州市海通电子设备有限公司 | Electric vehicle intelligent charger |
-
2017
- 2017-05-04 CN CN201710306861.6A patent/CN107591869A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07298506A (en) * | 1994-04-22 | 1995-11-10 | Toyota Autom Loom Works Ltd | Charger |
| JPH11178232A (en) * | 1997-12-16 | 1999-07-02 | Canon Inc | Noncontact-charging type electronic equipment |
| CN202513610U (en) * | 2012-03-23 | 2012-10-31 | 郑州佛光发电设备有限公司 | Charging device |
| CN203434647U (en) * | 2013-06-05 | 2014-02-12 | 河南龙瑞新能源汽车有限公司 | Vehicle-borne high-frequency intelligent charger for electric vehicles |
| CN204068314U (en) * | 2014-07-02 | 2014-12-31 | 鞍山通尊科技企业孵化器有限公司 | A kind of electri forklift quick charger |
| CN105048613A (en) * | 2015-09-02 | 2015-11-11 | 泉州市海通电子设备有限公司 | Electric vehicle intelligent charger |
Non-Patent Citations (1)
| Title |
|---|
| 潘再平: "《电气控制技术基础》", 31 December 2004, 浙江大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111403650A (en) * | 2020-03-27 | 2020-07-10 | 福建华祥电源科技有限公司 | High-efficient protection device of lead-acid batteries |
| CN116278963A (en) * | 2023-04-18 | 2023-06-23 | 安徽威斯姆电子科技有限公司 | Intelligent high-frequency charger of electric forklift and charging method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203312887U (en) | DC emergency power supply | |
| CN100376068C (en) | Intelligent high-frequency accumulator charger | |
| CN102751754B (en) | Solar energy and CT (current) mixing type energy storage and power supply device based on power control | |
| CN209562162U (en) | A kind of anti-shake electric installation of energy-conserving intelligent | |
| CN108448713A (en) | A kind of intelligence energy storage type emergency power system | |
| CN104935077A (en) | Anti-interference electricity device for series capacitance type AC contactor and control method thereof | |
| CN105301478A (en) | Detection device and detection method of 3.7V cell single-string protection plate | |
| CN103236733A (en) | Electric bicycle charging device with functions of delaying time and powering off | |
| CN107591869A (en) | A kind of electri forklift intelligent high frequency charger charge control system | |
| CN204131204U (en) | Intelligent direct current power shields | |
| CN103683188A (en) | Safety detection apparatus of solar energy inverter | |
| CN103915875A (en) | Lithium battery charging and discharging control system for novel solar street lamp | |
| CN204118813U (en) | Direct-current charging post main circuit dual control electric power system | |
| CN205691700U (en) | Photovoltaic DC-to-AC converter aging testing system | |
| CN103023135A (en) | Multi-level direct current transformation power supply device | |
| CN209014655U (en) | Insulation detecting circuit and charging pile | |
| CN204597597U (en) | A kind of domestic solar electric power system | |
| CN203233223U (en) | Electric bicycle charging device with function of time-delay power-off | |
| CN109361249A (en) | The charger of automatically cutting off power source | |
| CN107068488B (en) | Current source formula contactor Anti-electricity dazzling device and its control method | |
| CN205231837U (en) | Voltage track -hold circuit based on single -phase contravariant | |
| CN205319473U (en) | From outage and warning socket based on hall | |
| CN112584578B (en) | Suspension direct current powered LED street lamp system | |
| CN204928360U (en) | A prevent shaking electric installation for series capacitance formula ac contactor | |
| CN203352148U (en) | Lithium battery protection system |
Legal Events
| 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 |
Application publication date: 20180116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |