CN205753547U - A kind of garden instrument specialized lithium battery powdered device - Google Patents
A kind of garden instrument specialized lithium battery powdered device Download PDFInfo
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- CN205753547U CN205753547U CN201620644949.XU CN201620644949U CN205753547U CN 205753547 U CN205753547 U CN 205753547U CN 201620644949 U CN201620644949 U CN 201620644949U CN 205753547 U CN205753547 U CN 205753547U
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- 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
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Abstract
The utility model discloses a kind of garden instrument specialized lithium battery powdered device, it includes: lithium cells (1), intelligent charge unit (2), communication control unit (3), power subsystem (4).This utility model uses Serial Communication, sets up special communication protocol, effectively prevent mistake pairing charging problems between different capabilities intelligent charger and lithium battery；Use intelligent charge management method, solve current-limiting protection, be automatically adjusted the output problem such as burning voltage, quick charge；Use Real-time Monitor Technique, solve the voltage to the core that often economizes on electricity, the monitoring of electric current and safety protection problem；Use the detection of preliminary filling, charging voltage, battery temperature detection, charging interval judgement, constant current constant voltage combined charging mode, it is to avoid overcharge the leakage of the lithium battery caused, the on fire and danger of blast；Instead of the pattern that current fuel is powered, solve garden instrument powerup issue, have easy to use, charging safely, there is no the features such as powerful, the power-on time length of noise, defencive function, substantially increase the efficiency of garden management.
Description
Technical field
This utility model belongs to lithium battery applications technical field, particularly to a kind of lithium battery power supply device.
Background technology
World today's problem of environmental pollution is on the rise, traditional energy resource scarcity, strengthens new forms of energy research and utilizes
Through becoming the key link of restriction human development.Lithium battery due to possess length in service life, can fast charging and discharging, high voltage, resistance to
The features such as high temperature, memory-less effect, environmental protection, the most progressively become the main flow of battery industry.The highest electricity due to lithium cell
Pressure only 4.2V, and the voltage platform on garden instrument is tens volts, this just requires more piece lithium cell is composed in series one
Individual lithium battery group uses.In these lithium battery groups connected, when a joint brownout occur, charger can be by remaining electricity
Pressure is charged to overvoltage, when after repeatedly cycle charge-discharge, it is possible that single-unit overcharges causes lithium battery group leakage, on fire and blast etc.
Situation.So the voltage of the core that often economizes on electricity is monitored during the series connection of more piece lithium cell, charging current is monitored, and works as
Lithium cell uses the monitoring temperature in environment severe.When more piece lithium cell voltage occurring not at same platform, need
The battery core of overtension by equalization function by the Voltage Cortrol that often saves to same platform；If occurred in discharge process
Cross and put, it is desirable to provide a kind of mistake being protected from lithium cell is put.Therefore, how to solve that battery is overheated, equalize, the problem such as protection,
Reinforcement lithium battery, in the integrated application of all trades and professions, becomes the problem urgently researched and solved.
Utility model content
The purpose of this utility model is: provides a kind of garden instrument specialized lithium battery powdered device, preferably solves lithium
The problems such as the monitoring of set of cells, equilibrium, safe charging, protection, have easy to use, charging safely, there is no noise, defencive function
The features such as powerful, power-on time length, instead of the mode that current garden instrument fuel oil is powered, substantially increase the effect of garden management
Rate.
The technical solution of the utility model is: a kind of garden instrument specialized lithium battery powdered device, it is characterised in that its bag
Include: lithium cells (1), intelligent charge unit (2), communication control unit (3), power subsystem (4)；
Described lithium cells (1) includes lithium cell group (11), lithium battery protection module (12), electricity quantity display module
(13), communication module (14)；
Described lithium cell group (11) is in series by lithium cell, often joint lithium cell two ends be connected to detect charging voltage,
The circuit of charging current；
Described lithium battery protection module (12) includes AFE (analog front end) (121), depositor (122), single-chip microcomputer (123), is used for
Monitoring often saves the voltage of lithium cell, operating temperature and the charging current of described lithium cell group (11)；Grasp described lithium cell group
(11) often save the equilibrium state of lithium cell in, when more piece lithium cell occurring not at same platform, allow overtension lithium electricity
Core passes through equalization function, will often save the Voltage Cortrol of lithium cell to same platform；Described AFE (analog front end) (121) is at described monolithic
Machine (123) in a dormant state time, in closed mode, be used for reducing quiescent dissipation；Described lithium cells (1) accesses described intelligence
When energy charhing unit (2) is charged, described intelligent charge unit (2) activates described single-chip microcomputer (123), described single-chip microcomputer
(123) issue a command to described AFE (analog front end) (121), make described AFE (analog front end) (121) be in charging duty, before described simulation
The data of reading are passed to described single-chip microcomputer (123) by end (121)；When equilibrium, high/low temperature, list occurs in described lithium cell group (11)
When stream is crossed in joint overvoltage or overall overvoltage, discharge and recharge, described in these warning messages are sent to by serial ports by described single-chip microcomputer (123)
Intelligent charge unit (2), promotes described intelligent charge unit (2) charge closing；When equilibrium occurs, described AFE (analog front end)
(121) open discharge loop, allow unnecessary voltage energy be consumed by discharge loop；Described depositor (122) sets for storage
The numerical value threshold of stream is crossed in the overvoltage of fixed described lithium cell group (11), under-voltage, temperature, discharge and recharge；Check that lithium cell group (11) is quiet
During state electricity, activate described single-chip microcomputer (123) and AFE (analog front end) (121), do not send communication information；
Described electricity quantity display module (13), when described lithium cells (1) is static, shows described lithium cells (1)
Storage capacitance；When single lithium cell in described lithium cell group (11) damages or described lithium battery protection module (12) damages,
Display alarm signal, and shield storage capacitance show；When lithium cells (1) is in charged state, both whether showed communication
Abnormal, display that storage capacitance；
Described communication module (14) is for described lithium cells (1) and described intelligent charge unit (2), described logical
Communication between news control unit (3)；
Described intelligent charge unit (2) includes that charge control module (21), voltage detection module (22), charging current detect
Module (23), charging display module (24), CPU module (25), single line ID communication module (26)；
Described charge control module (21) is used for charge mode, charging voltage, the control of charging current；At described lithium battery
Unit (1) charges normal when mating with described intelligent charge unit (2) Content of communciation, to the lithium electricity under different voltage status
Core group (11) uses different charging currents；When correct with lithium cells (1) communication byte content in unprotect, Guan Bi continues
Electrical equipment connects described lithium cells (1), after being detected simultaneously by the voltage of lithium cells (1), sentences according to different magnitudes of voltage
The size of disconnected output electric current；When described lithium cells (1) voltage is low, uses pulse charge and start timing, waiting the time to arrive
Reaching rear voltage when being also not reaching to setting voltage value, charger is opened protection act and is also sent lithium to described lithium cells (1)
Battery repairing failure signal；When the voltage after preliminary filling is increased to setting voltage value, charger starts constant-current charge；Charge one section
After time, when the voltage of described lithium cells (1) arrives constant pressure point, the electric current that described intelligent charge unit (2) exports reduces,
The voltage maintaining described lithium cells (1) is the most constant at 58.8V；
Described voltage detection module (22) is used for detecting the voltage of lithium cell group (11) each lithium cell and described lithium cell
The voltage of group (11), and the information of detection is sent to described CPU module (25)；
Described charging current detection module (23) is used for detecting charging current, and the information of detection is sent to described CPU
Module (25)；
Described charging display module (24) be used for showing fault can recover, irrecoverable, charge normal, overtension, just
In faults such as equilibrium, excessive, the lithium cell damages of charging current；
Described CPU module (25) is used for receiving described charge control module (21), voltage detection module (22), charging current
The information of the described lithium cells (1) that what detection module (23) transmitted collect, after treatment, by described charging display
Module (24) shows, by described single line ID communication module (26) and described lithium cells (1), described communication control unit
(3) communication is carried out；
Described single line ID communication module (26) is used for the string between described lithium cells (1), intelligent charge unit (2)
Mouth communication；
Described communication control unit (3) includes matching detection module (31), information transfer module (32), control module
(33)；
Whether described matching detection module (31) is used for detecting described lithium cells (1) and described intelligent charger (2)
Coupling, one straight hair carrying out shake communication byte when described intelligent charger (2) can't detect institute lithium cells (1), when described lithium electricity
After pool unit (1) and described intelligent charger (2) are shaken hands successfully, the carrying out shake communication byte that described intelligent charger (2) sends is first
Described lithium cells (1) is activated from resting state；Described lithium cells (1) passively receives described intelligent charger
(2), after the carrying out shake communication byte sent, described lithium cells (1) informs described lithium battery list to described intelligent charger (2)
The capacity information of unit (1)；
Described information transfer module (32) is for the string between described lithium cells (1) and described intelligent charger (2)
Mouth communication, described intelligent charger (2) first determines whether whether the communication byte front two received meets in communications protocol and specifies
Content, prevent receive mistake communication byte and cause communication time to be delayed；When the front two communication byte received is correct
After start to receive rear 7 communication bytes；The communication byte received first is verified by described intelligent charger (2)；Communication is complete
Cheng Hou, sends port and sets low level, and serial bus is in high level, to described single-chip microcomputer when activating described lithium cells (1)
(123) a trailing edge pulse is sent；
Described control module (33) is used for controlling described matching detection module (31) and completes described lithium cells (1) and institute
State the Communication Control between intelligent charger (2)；
Described power subsystem (4) is for accessing exchange, and powers for internal unit and modules.
Further, described lithium battery protection module (12) uses TI chip BQ7694000 to realize equalizing voltage, charging
Electric current, overvoltage, cross put, the detection of battery core temperature；Charging over-current detection be by pressure difference on current sense resistor sample after
Pass to BQ7694000；Charge protection is by metal-oxide-semiconductor control；When described lithium cell group (11) occurs abnormal, described lithium battery
Protection module (12) controls charging MOS loop, closes MOS, disconnects described lithium cells (1) and described intelligent charge unit
(2) loop；When there is short circuit in described lithium cells (1), the fast fast thawing of fuse wire on described lithium cell group (11)
Disconnected；When occurring overcurrent protection information in discharge process, described lithium battery protection module (12) protects described communication module (14) to lead to
Know that described communication control unit (3) cuts off discharge loop；Described lithium battery protection module (12) uses passive self consumption type to equalize, logical
Overdischarge loop allows unnecessary voltage be consumed by discharge resistance.
Further, during described lithium battery protection module (12) Balance route, two adjacent sections battery core can not equalize simultaneously,
First opening odd number joint equalizing circuit, open even number joint equilibrium after waiting odd number joint equilibrium again, the condition entering equilibrium is any
One economize on electricity core is more than 4.1V, and any two economize on electricity core voltage differences are more than 50mV, and the condition exiting equilibrium is the voltage difference of any two joints
It is not more than 30mV, occurs that the condition of overvoltage is that any one economize on electricity pressure is more than 4.25V；Stream condition of charging is not more than 6A, under-voltage guarantor
The condition protected is any one joint lithium cell voltage less than 2.5V, the protection of high-temperature charging be ambient temperature be 55 °, low temperature charging
Protection be ambient temperature be 0 °, the protection of high temperature discharge be ambient temperature be 75 °, the protection of low temperature discharge is that ambient temperature is
0°。
Further, the communication modes between described intelligent charge unit (2) and communication control unit (3) is single line ID
Communication, is to be become single line ID by two-wire serial ports pattern by the conversion of hardware circuit.
Further, during the long protection of charging interval of described intelligent charge unit (2), charger first judges described lithium
The capacity of battery unit (1), selects long protection of different charging intervals value further according to different capabilities；When charger is the most normally opened
When opening charging, when charger begins to chargometer, exceeding the charging interval protection value of setting once the charging interval, charger is just
Open the load of protection act, tripping charger and described lithium cells (1), and show that the display lamp green light of charger is normal
Bright.
Further, described intelligent charge unit (2) is by the communication of front 7 bytes to the verification mode of communication byte
Content is added, cumulative after the highest two as the Content of communciation of the 8th, cumulative after minimum two as the communication of the 9th
Content.
This utility model uses Serial Communication, sets up special communication protocol, effectively prevent different capabilities intelligence and fill
Mistake pairing charging problems between electrical equipment and lithium battery；Use intelligent charge management method, solve current-limiting protection, be automatically adjusted
The output problem such as burning voltage, quick charge；Use Real-time Monitor Technique, solve the voltage to the core that often economizes on electricity, the prison of electric current
Control and safety protection problem；Use the detection of preliminary filling, charging voltage, battery temperature detection, the charging interval judges, constant current constant voltage combines
Charging modes, it is to avoid overcharge the leakage of the lithium battery caused, the on fire and danger of blast；Instead of the mould that current fuel is powered
Formula, solves garden instrument powerup issue, have easy to use, charging safely, do not have noise, defencive function powerful, power supply time
Between the feature such as long, substantially increase the efficiency of garden management.
Accompanying drawing explanation
Fig. 1 is this utility model composition frame chart.
Detailed description of the invention
Embodiment 1: see Fig. 1, a kind of garden instrument specialized lithium battery powdered device, it is characterised in that it includes: lithium electricity
Pool unit (1), intelligent charge unit (2), communication control unit (3), power subsystem (4)；
Described lithium cells (1) includes lithium cell group (11), lithium battery protection module (12), electricity quantity display module
(13), communication module (14)；
Described lithium cell group (11) is in series by lithium cell, often joint lithium cell two ends be connected to detect charging voltage,
The circuit of charging current；
Described lithium battery protection module (12) includes AFE (analog front end) (121), depositor (122), single-chip microcomputer (123), is used for
Monitoring often saves the voltage of lithium cell, operating temperature and the charging current of described lithium cell group (11)；Grasp described lithium cell group
(11) often save the equilibrium state of lithium cell in, when more piece lithium cell occurring not at same platform, allow overtension lithium electricity
Core passes through equalization function, will often save the Voltage Cortrol of lithium cell to same platform；Described AFE (analog front end) (121) is at described monolithic
Machine (123) in a dormant state time, in closed mode, be used for reducing quiescent dissipation；Described lithium cells (1) accesses described intelligence
When energy charhing unit (2) is charged, described intelligent charge unit (2) activates described single-chip microcomputer (123), described single-chip microcomputer
(123) issue a command to described AFE (analog front end) (121), make described AFE (analog front end) (121) be in charging duty, before described simulation
The data of reading are passed to described single-chip microcomputer (123) by end (121)；When equilibrium, high/low temperature, list occurs in described lithium cell group (11)
When stream is crossed in joint overvoltage or overall overvoltage, discharge and recharge, described in these warning messages are sent to by serial ports by described single-chip microcomputer (123)
Intelligent charge unit (2), promotes described intelligent charge unit (2) charge closing；When equilibrium occurs, described AFE (analog front end)
(121) open discharge loop, allow unnecessary voltage energy be consumed by discharge loop；Described depositor (122) sets for storage
The numerical value threshold of stream is crossed in the overvoltage of fixed described lithium cell group (11), under-voltage, temperature, discharge and recharge；Check that lithium cell group (11) is quiet
During state electricity, activate described single-chip microcomputer (123) and AFE (analog front end) (121), do not send communication information；
Described electricity quantity display module (13), when described lithium cells (1) is static, shows described lithium cells (1)
Storage capacitance；When single lithium cell in described lithium cell group (11) damages or described lithium battery protection module (12) damages,
Display alarm signal, and shield storage capacitance show；When lithium cells (1) is in charged state, both whether showed communication
Abnormal, display that storage capacitance；
Described intelligent charge unit (2) includes that charge control module (21), voltage detection module (22), charging current detect
Module (23), charging display module (24), CPU module (25), single line ID communication module (26)；
Described charge control module (21) is used for charge mode, charging voltage, the control of charging current；At described lithium battery
Unit (1) charges normal when mating with described intelligent charge unit (2) Content of communciation, to the lithium electricity under different voltage status
Core group (11) uses different charging currents；When correct with lithium cells (1) communication byte content in unprotect, Guan Bi continues
Electrical equipment connects described lithium cells (1), after being detected simultaneously by the voltage of lithium cells (1), sentences according to different magnitudes of voltage
The size of disconnected output electric current；When described lithium cells (1) voltage is low, uses pulse charge and start timing, waiting the time to arrive
Reaching rear voltage when being also not reaching to setting voltage value, charger is opened protection act and is also sent lithium to described lithium cells (1)
Battery repairing failure signal；When the voltage after preliminary filling is increased to setting voltage value, charger starts constant-current charge；Charge one section
After time, when the voltage of described lithium cells (1) arrives constant pressure point, the electric current that described intelligent charge unit (2) exports reduces,
The voltage maintaining described lithium cells (1) is the most constant at 58.8V；
Described voltage detection module (22) is used for detecting the voltage of lithium cell group (11) each lithium cell and described lithium cell
The voltage of group (11), and the information of detection is sent to described CPU module (25)；
Described charging current detection module (23) is used for detecting charging current, and the information of detection is sent to described CPU
Module (25)；
Described charging display module (24) be used for showing fault can recover, irrecoverable, charge normal, overtension, just
In faults such as equilibrium, excessive, the lithium cell damages of charging current；
Described CPU module (25) is used for receiving described charge control module (21), voltage detection module (22), charging current
The information of the described lithium cells (1) that what detection module (23) transmitted collect, after treatment, by described charging display
Module (24) shows, by described single line ID communication module (26) and described lithium cells (1), described communication control unit
(3) communication is carried out；
Described single line ID communication module (26) is used for the string between described lithium cells (1), intelligent charge unit (2)
Mouth communication；
Described communication control unit (3) includes matching detection module (31), information transfer module (32), control module
(33)；
Whether described matching detection module (31) is used for detecting described lithium cells (1) and described intelligent charger (2)
Coupling, one straight hair carrying out shake communication byte when described intelligent charger (2) can't detect institute lithium cells (1), when described lithium electricity
After pool unit (1) and described intelligent charger (2) are shaken hands successfully, the carrying out shake communication byte that described intelligent charger (2) sends is first
Described lithium cells (1) is activated from resting state；Described lithium cells (1) passively receives described intelligent charger
(2), after the carrying out shake communication byte sent, described lithium cells (1) informs described lithium battery list to described intelligent charger (2)
The capacity information of unit (1)；
Described information transfer module (32) is for the string between described lithium cells (1) and described intelligent charger (2)
Mouth communication, described intelligent charger (2) first determines whether whether the communication byte front two received meets in communications protocol and specifies
Content, prevent receive mistake communication byte and cause communication time to be delayed；When the front two communication byte received is correct
After start to receive rear 7 communication bytes；The communication byte received first is verified by described intelligent charger (2)；Communication is complete
Cheng Hou, sends port and sets low level, and serial bus is in high level, to described single-chip microcomputer when activating described lithium cells (1)
(123) a trailing edge pulse is sent；
Described control module (33) is used for controlling described matching detection module (31) and completes described lithium cells (1) and institute
State the Communication Control between intelligent charger (2)；
Described power subsystem (4) is for accessing exchange, and powers for internal unit and modules；
Further, described lithium battery protection module (12) uses TI chip BQ7694000 to realize equalizing voltage, charging
Electric current, overvoltage, cross put, the detection of battery core temperature；Charging over-current detection be by pressure difference on current sense resistor sample after
Pass to BQ7694000；Charge protection is by metal-oxide-semiconductor control；When described lithium cell group (11) occurs abnormal, described lithium battery
Protection module (12) controls charging MOS loop, closes MOS, disconnects described lithium cells (1) and described intelligent charge unit
(2) loop；When there is short circuit in described lithium cells (1), the fast fast thawing of fuse wire on described lithium cell group (11)
Disconnected；When occurring overcurrent protection information in discharge process, described lithium battery protection module (12) protects described communication module (14) to lead to
Know that described communication control unit (3) cuts off discharge loop；Described lithium battery protection module (12) uses passive self consumption type to equalize, logical
Overdischarge loop allows unnecessary voltage be consumed by discharge resistance.
During described lithium battery protection module (12) Balance route, two adjacent sections battery core can not equalize simultaneously, first opens odd number
Joint equalizing circuit, opens even number joint equilibrium again after waiting odd number joint equilibrium, the condition entering equilibrium is that any one economize on electricity core is big
In 4.1V, any two economize on electricity core voltage differences are more than 50mV, and the condition exiting equilibrium is that any two voltage differences saved are not more than 30mV,
The condition of appearance overvoltage is that any one economize on electricity pressure is more than 4.25V；Stream condition of charging is not more than 6A, and the condition of under-voltage protection is to appoint
Meaning one joint lithium cell voltage less than 2.5V, the protection of high-temperature charging be ambient temperature be 55 °, the protection of low temperature charging is environment temperature
Degree is 0 °, the protection of high temperature discharge be ambient temperature be 75 °, the protection of low temperature discharge be ambient temperature be 0 °.
Communication modes between described intelligent charge unit (2) and communication control unit (3) is single line ID communication, is by double
Line serial ports pattern becomes single line ID by the conversion of hardware circuit.
During the long protection of charging interval of described intelligent charge unit (2), charger first judges described lithium cells (1)
Capacity, select long protection of different charging intervals value further according to different capabilities；When the normally-open charging of charger, fill
When electrical equipment begins to chargometer, exceeding the charging interval protection value of setting once the charging interval, it is dynamic that charger is switched on protection
Make, tripping charger and the load of described lithium cells (1), and show the display lamp green light Chang Liang of charger.
Described intelligent charge unit (2) is to be added by the Content of communciation of front 7 bytes the verification mode of communication byte, tired
After adding the highest two as the Content of communciation of the 8th, cumulative after minimum two as the Content of communciation of the 9th.
Claims (6)
1. a garden instrument specialized lithium battery powdered device, it is characterised in that it includes: lithium cells (1), intelligent charge
Unit (2), communication control unit (3), power subsystem (4)；
Described lithium cells (1) includes lithium cell group (11), lithium battery protection module (12), electricity quantity display module (13), leads to
News module (14)；
Described lithium cell group (11) is in series by lithium cell, and often joint lithium cell two ends are connected to detect charging voltage, charging
The circuit of electric current；
Described lithium battery protection module (12) includes AFE (analog front end) (121), depositor (122), single-chip microcomputer (123), is used for monitoring
Often save the voltage of lithium cell, operating temperature and the charging current of described lithium cell group (11)；Grasp in described lithium cell group (11)
Often save the equilibrium state of lithium cell, when more piece lithium cell occurring not at same platform, allow the lithium cell of overtension pass through
Equalization function, will often save the Voltage Cortrol of lithium cell to same platform；Described AFE (analog front end) (121) is at described single-chip microcomputer
(123) time in a dormant state, in closed mode, it is used for reducing quiescent dissipation；Described lithium cells (1) accesses described intelligence
When charhing unit (2) is charged, described intelligent charge unit (2) activates described single-chip microcomputer (123), described single-chip microcomputer (123)
Issue a command to described AFE (analog front end) (121), make described AFE (analog front end) (121) be in charging duty, described AFE (analog front end)
(121) data of reading are passed to described single-chip microcomputer (123)；When equilibrium, high/low temperature, single-unit occurs in described lithium cell group (11)
When stream is crossed in overvoltage or overall overvoltage, discharge and recharge, these warning messages are sent to described intelligence by serial ports by described single-chip microcomputer (123)
Energy charhing unit (2), promotes described intelligent charge unit (2) charge closing；When equilibrium occurs, described AFE (analog front end) (121)
Open discharge loop, allow unnecessary voltage energy be consumed by discharge loop；Described depositor (122) is for storing the institute of setting
State the overvoltage of lithium cell group (11), the numerical value threshold of stream is crossed in under-voltage, temperature, discharge and recharge；Check the static electricity of lithium cell group (11)
Time, activate described single-chip microcomputer (123) and AFE (analog front end) (121), do not send communication information；
Described electricity quantity display module (13), when described lithium cells (1) is static, shows the storage of described lithium cells (1)
Capacitance；When single lithium cell in described lithium cell group (11) damages or described lithium battery protection module (12) damages, display
Warning signal, and shield storage capacitance show；When lithium cells (1) is in charged state, both showed that communication was the most abnormal,
Display that storage capacitance；
Described communication module (14) is for described lithium cells (1) and described intelligent charge unit (2), described communication control unit
Communication between unit (3)；
Described intelligent charge unit (2) includes charge control module (21), voltage detection module (22), charging current detection module
(23), charging display module (24), CPU module (25), single line ID communication module (26)；
Described charge control module (21) is used for charge mode, charging voltage, the control of charging current；In described lithium cells
(1) charge normal when mating with described intelligent charge unit (2) Content of communciation, to the lithium cell group under different voltage status
(11) different charging currents is used；When correct with lithium cells (1) communication byte content in unprotect, closing relay
Device connects described lithium cells (1), after being detected simultaneously by the voltage of lithium cells (1), judges according to different magnitudes of voltage
The size of output electric current；When described lithium cells (1) voltage is low, uses pulse charge and start timing, waiting the time to arrive
When rear voltage is also not reaching to setting voltage value, charger is opened protection act and sends lithium electricity to described lithium cells (1)
Pond repairing failure signal；When the voltage after preliminary filling is increased to setting voltage value, charger starts constant-current charge；Charge one section time
After between, when the voltage of described lithium cells (1) arrives constant pressure point, the electric current that described intelligent charge unit (2) exports reduces, dimension
The voltage holding described lithium cells (1) is the most constant at 58.8V；
Described voltage detection module (22) is used for detecting the voltage of lithium cell group (11) each lithium cell and described lithium cell group
(11) voltage, and the information of detection is sent to described CPU module (25)；
Described charging current detection module (23) is used for detecting charging current, and the information of detection is sent to described CPU module
(25)；
Described charging display module (24) be used for showing fault can recover, irrecoverable, charge normal, overtension, the most equal
The faults such as weighing apparatus, excessive, the lithium cell damage of charging current；
Described CPU module (25) is used for receiving described charge control module (21), voltage detection module (22), charging current detection
The information of the described lithium cells (1) that what module (23) transmitted collect, after treatment, by described charging display module
(24) display, is entered with described lithium cells (1), described communication control unit (3) by described single line ID communication module (26)
Row communication；
Described single line ID communication module (26) is used for the serial ports between described lithium cells (1), intelligent charge unit (2) and leads to
News；
Described communication control unit (3) includes matching detection module (31), information transfer module (32), control module (33)；
Described matching detection module (31) is used for detecting whether described lithium cells (1) mates with described intelligent charger (2),
One straight hair carrying out shake communication byte when described intelligent charger (2) can't detect institute lithium cells (1), when described lithium cells
(1), after shaking hands successfully with described intelligent charger (2), the carrying out shake communication byte that described intelligent charger (2) sends is first by described
Lithium cells (1) activates from resting state；Described lithium cells (1) passively receives described intelligent charger (2) and sends out
After the carrying out shake communication byte come, described lithium cells (1) informs described lithium cells (1) to described intelligent charger (2)
Capacity information；
Described information transfer module (32) leads to for the serial ports between described lithium cells (1) and described intelligent charger (2)
News, described intelligent charger (2) first determines whether whether the communication byte front two received meets in communications protocol the interior of regulation
Hold, prevent from receiving the communication byte of mistake and causing communication time to be delayed；Open after the front two communication byte received is correct
Begin to receive rear 7 communication bytes；The communication byte received first is verified by described intelligent charger (2)；After communication completes,
Sending port and set low level, serial bus is in high level, to described single-chip microcomputer (123) when activating described lithium cells (1)
Send a trailing edge pulse；
Described control module (33) is used for controlling described matching detection module (31) and completes described lithium cells (1) and described intelligence
Communication Control between energy charger (2)；
Described power subsystem (4) is for accessing exchange, and powers for internal unit and modules.
2. a kind of garden instrument specialized lithium battery powdered device as claimed in claim 1, it is characterised in that: described lithium battery is protected
Protect module (12) use TI chip BQ7694000 realize equalizing voltage, charging current, overvoltage, cross put, the detection of battery core temperature；
Charging over-current detection is by passing to BQ7694000 after the sampling of pressure difference on current sense resistor；Charge protection is by MOS
Management and control system；When described lithium cell group (11) occurs abnormal, described lithium battery protection module (12) controls charging MOS loop, closes
Close MOS, disconnect described lithium cells (1) and the loop of described intelligent charge unit (2)；When described lithium cells (1) goes out
During existing short circuit, the fuse wire quick fuse on described lithium cell group (11)；When discharge process occurs overcurrent protection information,
Described lithium battery protection module (12) protects described communication module (14) to notify, and described communication control unit (3) cut-out is discharged back
Road；Described lithium battery protection module (12) uses passive self consumption type to equalize, and allows unnecessary voltage by electric discharge by discharge loop
Resistance consumption.
3. a kind of garden instrument specialized lithium battery powdered device as claimed in claim 2, it is characterised in that: described lithium battery is protected
When protecting module (12) Balance route, two adjacent sections battery core can not equalize simultaneously, first opens odd number joint equalizing circuit, waits odd number joint all
Opening even number joint equilibrium after weighing apparatus again, the condition entering equilibrium is that any one economize on electricity core is more than 4.1V, any two economize on electricity core electricity
Pressure reduction is more than 50mV, and the condition exiting equilibrium is that any two voltage differences saved are not more than 30mV, occurs that the condition of overvoltage is any
One economize on electricity pressure is more than 4.25V；Stream condition of charging is not more than 6A, and the condition of under-voltage protection is that any one joint lithium cell voltage is less than
2.5V, the protection of high-temperature charging be ambient temperature be 55 °, low temperature charging protection be ambient temperature be 0 °, the guarantor of high temperature discharge
Protect be ambient temperature be 75 °, the protection of low temperature discharge be ambient temperature be 0 °.
4. a kind of garden instrument specialized lithium battery powdered device as claimed in claim 1, it is characterised in that: described intelligent charge
Communication modes between unit (2) and communication control unit (3) is single line ID communication, is by hardware electricity by two-wire serial ports pattern
The conversion on road becomes single line ID.
5. a kind of garden instrument specialized lithium battery powdered device as claimed in claim 1, it is characterised in that: described intelligent charge
During the long protection of charging interval of unit (2), charger first judges the capacity of described lithium cells (1), holds further according to difference
Amount selects long protection of different charging intervals value；When the normally-open charging of charger, when charger begins to chargometer,
Exceed the charging interval protection value of setting once the charging interval, charger is switched on protection act, and tripping charger is with described
The load of lithium cells (1), and show the display lamp green light Chang Liang of charger.
6. a kind of garden instrument specialized lithium battery powdered device as claimed in claim 1, it is characterised in that: described intelligent charge
Unit (2) is the Content of communciation of front 7 bytes to be added the verification mode of communication byte, cumulative after the highest two as the
The Content of communciation of 8, cumulative after minimum two as the Content of communciation of the 9th.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644949.XU CN205753547U (en) | 2016-06-24 | 2016-06-24 | A kind of garden instrument specialized lithium battery powdered device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644949.XU CN205753547U (en) | 2016-06-24 | 2016-06-24 | A kind of garden instrument specialized lithium battery powdered device |
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| CN205753547U true CN205753547U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620644949.XU Withdrawn - After Issue CN205753547U (en) | 2016-06-24 | 2016-06-24 | A kind of garden instrument specialized lithium battery powdered device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932749A (en) * | 2016-06-24 | 2016-09-07 | 浙江中马园林机器股份有限公司 | Special lithium battery power supply device for garden tool |
| CN110676903A (en) * | 2019-10-08 | 2020-01-10 | 宁波绿光能源集团有限公司 | Control method of separated portable solar system |
-
2016
- 2016-06-24 CN CN201620644949.XU patent/CN205753547U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932749A (en) * | 2016-06-24 | 2016-09-07 | 浙江中马园林机器股份有限公司 | Special lithium battery power supply device for garden tool |
| CN105932749B (en) * | 2016-06-24 | 2018-07-17 | 浙江中马园林机器股份有限公司 | A kind of special lithium battery power supply device of garden instrument |
| CN110676903A (en) * | 2019-10-08 | 2020-01-10 | 宁波绿光能源集团有限公司 | Control method of separated portable solar system |
| CN110676903B (en) * | 2019-10-08 | 2023-05-09 | 宁波绿光能源集团有限公司 | Control method of separated portable solar system |
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