CN105356549B - High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack - Google Patents
High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack Download PDFInfo
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- CN105356549B CN105356549B CN201510884510.4A CN201510884510A CN105356549B CN 105356549 B CN105356549 B CN 105356549B CN 201510884510 A CN201510884510 A CN 201510884510A CN 105356549 B CN105356549 B CN 105356549B
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- 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
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Abstract
The invention discloses a kind of high pressure lithium battery pack and include the equipment of the high pressure lithium battery pack, the wherein high pressure lithium battery pack includes at least three tunnel low pressure charging circuits and at least three lithium battery groups；It is connected per the input of low pressure charging circuit all the way with low-voltage power supply, output end is connected with a lithium battery group, for being charged to a lithium battery group；At least three lithium battery groups are connected in series.The high pressure lithium battery pack of the present invention and the equipment including the high pressure lithium battery pack have the advantages of good portability, stability are good.
Description
Technical field
The present invention relates to technical field of lithium batteries, and in particular to a kind of high pressure lithium battery pack and including the high pressure lithium battery pack
Equipment, more particularly, to it is a kind of can realize low-voltage charging and high-voltage discharge high pressure lithium battery pack.
Background technology
Current widely used electric welding machine or cutting machine are all generally corded devices, are powered using AC AC powers,
It typically has AC110V and AC220V AC powers to power two kinds.AC110V the and AC220V corded devices technology of this quasi-tradition is
Through very ripe, but the defects of needing external AC110V or AC220V AC powers ability normal work be present, so being not easy to
Used under the occasion without such external AC power supply, such as in newly-built, simple and crude engineering construction environment, power failure environment
Deng without portability.
Therefore, some wireless Electricity generating welders or cutting machine improved, with generating function are provided with the prior art,
Without external AC power supply, solve the problems, such as to need external AC power supply could normal work.But this existing kind equipment
Gasoline driven is needed, weight and volume is all bigger, and it is all very inconvenient to carry and place.And this kind equipment running noises compares
Greatly, it can typically reach more than 100 decibels, will also result in the noise pollution of job site.So portability does not obtain changing greatly very much
It is kind.
Some wireless electric welding machines or cutting machine for using rechargeable battery power supply are also provided with the prior art, without outer
AC power is connect, also solves the problems, such as to need external AC power supply could normal work.But this existing kind equipment uses
Rechargeable battery be generally DC48V and DC36V, supply voltage is relatively low, so required DC/DC inverter currents are larger, so as to
It is easy to blow up electronic switch, therefore the stability of this kind equipment is excessively poor.
The content of the invention
Therefore, the technical problem to be solved in the present invention is the electrical equipments such as electric welding machine or cutting machine of the prior art
Portability is poor, stability is poor.
Therefore, a kind of high pressure lithium battery pack of low pressure charging/electrion of the present invention, including at least three tunnel low pressure chargings
Circuit and at least three lithium battery groups；
Input per low pressure charging circuit described all the way is connected with low-voltage power supply, output end and a lithium battery group
Connection, for being charged to a lithium battery group；
At least three lithium battery group is connected in series.
Preferably, each described low pressure charging circuit include isolation boosting circuit, the second gate-controlled switch and it is passive
Weigh battery management system；
The input of the isolation boosting circuit is connected with low-voltage power supply, the first output end and lithium battery group
Positive pole is connected, and the second output end is connected with the first end of second gate-controlled switch, for low-voltage power supply to be isolated
Exported after boosting；Second end of second gate-controlled switch is connected with the negative pole of one lithium battery group, and described second is controllable
The control terminal of switch is connected with the output end of the passive balancing battery management system, for controlling connection or disconnecting the isolation
Second output end of booster circuit and the negative pole of one lithium battery group；
The passive balancing battery management system is used for the voltage for detecting each series lithium battery in one lithium battery group,
And corresponding control signal is produced accordingly and is exported by its output end.
Preferably, the passive balancing battery management system includes the first controller, voltage detecting circuit and multichannel power consumption
Circuit；
The input of first controller is connected with the output end of the voltage detecting circuit, and the first output end is as institute
The output end of passive balancing battery management system is stated, other multiple output ends are defeated with multichannel energy consuming circuitry respectively correspondingly
Enter end connection, the signal for being received according to input controls to adjust the voltage swing of multiple other output ends outputs；
Multiple inputs of the voltage detecting circuit correspondingly respectively with every a string in one lithium battery group
The positive pole connection of lithium battery, for detecting the voltage of each series lithium battery and outputting it；
The positive pole of first input end and the series lithium battery in one lithium battery group per energy consuming circuitry described all the way
Connection, other output ends are connected the second input with one of first controller, output end and a series lithium battery
Negative pole connects, for consuming the electricity of a series lithium battery.
Preferably, the first triode, the second triode, first resistor, the second electricity are included per energy consuming circuitry described all the way
Resistance, 3rd resistor and the 4th resistance；The emitter-base bandgap grading of first triode with a series lithium battery in one lithium battery group just
Pole connects, and is connected after first resistor described in collector series connection with the negative pole of a series lithium battery, base stage concatenation the 3rd electricity
Colelctor electrode after resistance with second triode is connected；The base stage of second triode is used as institute after concatenating the 4th resistance
The input for stating energy consuming circuitry is connected with other output ends described in one of first controller, grounded collector；Described
Two resistance are connected across on the emitter-base bandgap grading and base stage of first triode.
Preferably,
The high pressure lithium battery pack is mainly connected in series and formed by three 13 strings/48V lithium battery groups, its high straightening exported
Stream voltage is DC120V-DC162V；Or
The high pressure lithium battery pack is mainly connected in series and formed by four 10 strings/36V lithium battery groups, its high straightening exported
Stream voltage is DC120V-DC168V；Or
The high pressure lithium battery pack is mainly connected in series and formed by four 13 strings/48V lithium battery groups, its high straightening exported
Stream voltage is DC160V-DC216V；Or
The high pressure lithium battery pack is mainly connected in series and formed by five 13 strings/48V lithium battery groups, its high straightening exported
Stream voltage is DC200V-DC270V.
A kind of portable electrical equipment of the present invention, include the high pressure lithium battery pack of above-mentioned low pressure charging/electrion.
Preferably, the equipment is wireless welding equipment, wireless cutting equipment or mobile AC power.
Preferably, the wireless welding equipment is wireless inverter arc welding electric welding machine, stud welding machine or mash welder.
Preferably, the wireless cutting equipment is air plasma cutter.
Preferably, the wireless inverter arc welding electric welding machine also includes inverter circuit, transformer and the first gate-controlled switch；
The positive pole of the high pressure lithium battery pack is connected with the first input end of the inverter circuit, and negative pole and described first can
The first end connection of control switch；Second end of first gate-controlled switch is connected with the second input of the inverter circuit, is used
Connected under the control of the switch controlling signal received by the control terminal in first gate-controlled switch or disconnect the high pressure
Second input of the negative pole of lithium battery pack and the inverter circuit；
The output end of the inverter circuit is connected with the input of the transformer, for the high pressure lithium battery pack is defeated
The high-voltage dc voltage gone out is reverse into alternating voltage；The transformer is used to the AC voltage drop being pressed into low voltage.
Preferably, the wireless inverter arc welding electric welding machine also includes current rectifying and wave filtering circuit, its input and the transformer
Output end connection, the output end of the current rectifying and wave filtering circuit provides end for the DC current of the equipment, for will be described low
Piezoelectricity pressure exports after carrying out rectification and filtering.
Preferably, the wireless inverter arc welding electric welding machine also includes second controller, its input and high pressure lithium electricity
Chi Bao positive pole connection, output end is connected with the control terminal of first gate-controlled switch, for detecting the high pressure lithium battery pack
Voltage, and produce corresponding control signal accordingly and exported by its output end, the electricity of high pressure lithium battery pack described in balanced management
Amount.
Technical solution of the present invention, have the following advantages that：
1. the high pressure lithium battery pack of low pressure charging/electrion provided in an embodiment of the present invention, by setting at least three tunnels
Low pressure charging circuit and at least three lithium battery groups, and charged per low pressure charging circuit all the way to a lithium battery group, so as to real
The low pressure charging of packet is showed.At least three lithium battery groups are connected in series by setting, it is rear to form high pressure lithium battery pack, to carry
Exported for high-voltage dc voltage, so as to particularly suitable for making when in the equipment such as electric welding machine or cutting machine or mobile AC power
With, and due to having used high pressure lithium battery pack as power supply, without external power supply, and because lithium battery has volume
Small, output power, in light weight, low cost and other advantages, such as the lithium battery group weight of storage 1KWH electric energy only have 7KG or so,
So as to drastically increase the portability for the electrical equipment for having used the high pressure lithium battery pack.
2. the high pressure lithium battery pack of low pressure charging/electrion provided in an embodiment of the present invention, by for each low pressure
Charging current sets passive balanced BMS, the mop-up equalization of passive type charge/discharge is provided for lithium battery group, so as to extend
The service life of lithium battery group, further increase the stability of equipment.And it can also reduce to lithium battery long-term consistency
Requirement, so as to the relatively low domestic lithium battery of use cost, the cost of equipment can be reduced.
3. the high pressure lithium battery pack of low pressure charging/electrion provided in an embodiment of the present invention, voltage is examined by setting
Positive pole of the multiple inputs of slowdown monitoring circuit correspondingly respectively with each series lithium battery in a lithium battery group is connected, Ke Yijian
The voltage of each series lithium battery is measured, by setting the first controller can be according to the voltage phase of each series lithium battery received
The voltage swing for the output end that the control and regulation answered are connected with energy consuming circuitry, to adjust the charge/discharge of each series lithium battery electricity
Stream, so as to ensure that the equilibrium of each series lithium battery, extends the service life of lithium battery.
4. the high pressure lithium battery pack of low pressure charging/electrion provided in an embodiment of the present invention, innovation passes through setting height
Pressure lithium battery pack can be connected in series by three 13 strings/48V lithium battery groups respectively, four 10 strings/36V lithium battery groups series connection connects
Connect, four 13 strings/48V lithium battery groups are connected in series or five 13 strings/48V lithium battery groups are connected in series composition, can carry respectively
For DC120V-DC162V, DC120V-DC168V, DC160V-DC216V or DC200V-DC270V High voltage output voltage, so as to example
It can such as be answered respectively as 160A/28V, 160A/28V, 160A/28V-250A/34V, 250A/34V-315A/36V electric welding machine
With obtaining 4 kinds of fan-out capabilities (160A/28V, 200A/32V, 250A/34V, 315A/36V) of current welding machine profession Plays
Electric welding machine.Meanwhile the demand according to practical application for cutting machine and the supply voltage of mobile AC power, it is also possible to obtain
The application of the cutting machine of industry Plays model and mobile AC power.
5. the equipment of the lithium battery power supply of low pressure charging/electrion provided in an embodiment of the present invention, by setting second
Controller, can be realized to the balanced management between at least three lithium battery groups, and two level balance protection is provided for lithium battery group, from
And further extend the service life of equipment.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the specific embodiment of the invention, embodiment will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are some realities of the present invention
Mode is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is the original of a specific example of the high pressure lithium battery pack of the mesolow charging of the embodiment of the present invention 1/electrion
Manage block diagram；
Fig. 2 is the theory diagram of a specific example of low pressure charging circuit of the present invention；
Fig. 3 is the theory diagram of a specific example of the passive balancing battery management system of the present invention；
Fig. 4 is the wireless inverter arc welding electric welding machine of lithium battery power supply of the mesolow charging of the embodiment of the present invention 2/electrion
The theory diagram of one specific example；
Fig. 5 is the wireless inverter arc welding electric welding machine of lithium battery power supply of the mesolow charging of the embodiment of the present invention 2/electrion
The theory diagram of another specific example.
Reference：10- low pressure charging circuits, 20- lithium battery groups, 30- inverter circuits, 40- transformers, 50- rectifications filter
Wave circuit, the gate-controlled switches of 60- first, 11- isolation boosting circuits, the gate-controlled switches of 12- second, the passive balancing battery management systems of 13-
System, the controllers of 131- first, 132- voltage detecting circuits, 133- energy consuming circuitries, 101- high pressure lithium battery packs.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to which explanation, term " first ", " second ", " the 3rd " etc. are only used for describing mesh
, and it is not intended that instruction or hint relative importance.Unless otherwise clearly defined and limited, term " connected ", " company
Connect " it should be interpreted broadly, it for example, it may be being joined directly together, can also be indirectly connected by intermediary, can also be two members
Connection inside part, can be wireless connection or wired connection.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Embodiment 1
The present embodiment provides a kind of high pressure lithium battery pack of low pressure charging/electrion, as shown in figure 1, including at least three
Road low pressure charging circuit 10 and at least three lithium battery groups 20.The lithium battery group for example can be 13 strings/48V lithium battery groups, lithium
The quantity of battery pack is not limited to three, and more lithium battery groups are also feasible.For example, three 13 strings/48V lithium battery groups series connection
Connection, its high-voltage dc voltage exported is DC120V-DC162V；Or four 10 strings/36V lithium battery groups are connected in series, its
The high-voltage dc voltage of output is DC120V-DC168V；Or four 13 strings/48V lithium battery groups are connected in series, its height exported
Pressure DC voltage is DC160V-DC216V；Or five 13 strings/48V lithium battery groups are connected in series, its high voltage direct current exported
Press as DC200V-DC270V.So as to for example can respectively as 160A/28V, 160A/28V, 160A/28V-250A/34V,
250A/34V-315A/36V electric welding machines are applied, obtain current welding machine profession Plays 4 kinds of fan-out capabilities (160A/28V,
200A/32V, 250A/34V, 315A/36V) electric welding machine.Meanwhile according to practical application for cutting machine and mobile AC power
Supply voltage demand, it is also possible to obtain the application of the cutting machine of industry Plays model and mobile AC power.
It is connected per the input of low pressure charging circuit 10 all the way with low-voltage power supply, output end and a lithium battery group 20
Connection, for being charged to a lithium battery group 20.Preferably, low-voltage power supply is DC24V-DC36V power supplies, due to low
Pressure power supply is less than 36V, so potential safety hazard will not be brought to human body, improves the security of electric welding machine.At least three lithiums
Battery pack 20 is connected in series.
The high pressure lithium battery pack of above-mentioned low pressure charging/electrion, by setting at least three tunnel low pressure charging circuits and extremely
Few three lithium battery groups, and charged per low pressure charging circuit all the way to a lithium battery group, it is achieved thereby that the low pressure of packet is filled
Electricity.At least three lithium battery groups are connected in series by setting, rear composition high pressure lithium battery pack is defeated to provide high-voltage dc voltage
Go out, so as to be used particularly suitable for working as in the equipment such as electric welding machine or cutting machine or mobile AC power, and due to using
High pressure lithium battery pack is as power supply, without external power supply, and because lithium battery has small volume, output power, weight
Gently, low cost and other advantages, such as the lithium battery group weight of storage 1KWH electric energy only have 7KG or so, make so as to drastically increase
With the portability of the electrical equipment of the high pressure lithium battery pack.
Preferably, as shown in Fig. 2 each low pressure charging circuit 10 includes, isolation boosting circuit 11, second is controllable to be opened
Close 12 and passive balancing battery management system (BMS) 13.
The input of isolation boosting circuit 11 is connected with low-voltage power supply, the first output end and lithium battery group 20
Positive pole is connected, and the second output end is connected with the first end of the second gate-controlled switch 12, is risen for low-voltage power supply to be carried out into isolation
Exported after pressure；Second end of the second gate-controlled switch 12 is connected with the negative pole of a lithium battery group 20, the control of the second gate-controlled switch 12
End processed connects with passive balanced BMS13 output end, for controlling connection or disconnecting the second output end of isolation boosting circuit 11
With the negative pole of a lithium battery group 20.
Passive balanced BMS13 is used for the voltage for detecting each series lithium battery in a lithium battery group 20, and produces phase accordingly
The control signal answered is exported by its output end.
It will be understood by those of skill in the art that low pressure charging current is not limited to be realized by above-mentioned physical circuit,
Can be able to be that lithium battery group carries out the circuit of low pressure charging and realized by other.
The high pressure lithium battery pack of above-mentioned low pressure charging/electrion, it is passive by being set for each low pressure charging current
Balanced BMS, the mop-up equalization of passive type charge/discharge is provided for lithium battery group, so as to extend the use longevity of lithium battery group
Life, further increase the stability of equipment.And the requirement to lithium battery long-term consistency can also be reduced, so as to so that
With lower-cost domestic lithium battery, the cost of equipment can be reduced.
Preferably, as shown in figure 3, passive balanced BMS13 includes the first controller 131, voltage detecting circuit 132 and multichannel
Energy consuming circuitry 133.The input of first controller 131 is connected with the output end of voltage detecting circuit 132, the first output end conduct
Passive balanced BMS13 output end, multiple other output ends BJ1-BJ13 correspondingly respectively with multichannel energy consuming circuitry 133
Input connects, and the signal for being received according to input controls to adjust the voltage swing of multiple other output ends outputs.
Multiple input VBD1+ to VBD13+ of voltage detecting circuit 132 correspondingly respectively with a lithium battery group
The positive pole connection of each series lithium battery in 20, for detecting the voltage of each series lithium battery and outputting it.Preferably, such as Fig. 3
It is shown, multiple input VBD1+ to VBD13+ can also connect respectively after RC filter circuits again correspondingly respectively with one
The positive pole connection of each series lithium battery, improves antijamming capability in lithium battery group 20.
Connect per the positive pole of the first input end of energy consuming circuitry 133 and the series lithium battery in a lithium battery group 20 all the way
Connect, other output ends are connected the second input with one of the first controller 131, and output end and the negative pole of a series lithium battery connect
Connect, for consuming the electricity of a series lithium battery.
It will be understood by those of skill in the art that passive balanced BMS is not limited to be realized by above-mentioned physical circuit, also may be used
So that the circuit of balanced management can be provided for lithium battery by other to realize.
The high pressure lithium battery pack of above-mentioned low pressure charging/electrion, by setting multiple inputs of voltage detecting circuit
Hold the positive pole correspondingly respectively with each series lithium battery in a lithium battery group to be connected, each series lithium battery can be detected
Voltage, by setting the first controller to be controlled to adjust accordingly according to the voltage of each series lithium battery received and consumption
The voltage swing of the output end of energy circuit connection, it is each so as to ensure that to adjust the charge/discharge current of each series lithium battery
The equilibrium of series lithium battery, extend the service life of lithium battery.
Preferably, the first triode QPJ13, the second triode QNJ11, the first electricity are included per energy consuming circuitry 133 all the way
Hinder RJ131, second resistance RJ132,3rd resistor RJ133 and the 4th resistance RJ134；First triode QPJ13 emitter-base bandgap grading and one
The positive pole of a series lithium battery connects in individual lithium battery group 20, negative with a series lithium battery after collector series connection first resistor RJ131
Pole connects, and is connected after base stage concatenation 3rd resistor RJ133 with the second triode QNJ11 colelctor electrode；Second triode QNJ11's
Input and one of the first controller 131 other output ends after the 4th resistance RJ134 of base stage concatenation as energy consuming circuitry 133
Connection, grounded collector；Second resistance RJ132 is connected across on the first triode QPJ13 emitter-base bandgap grading and base stage.
It will be understood by those of skill in the art that energy consuming circuitry is not limited to be realized by above-mentioned physical circuit, can also
Can be that lithium battery discharges the circuit of electricity and realized by other.
The high pressure lithium battery pack of above-mentioned low pressure charging/electrion, by setting the first triode and the second triode, carry
High discharge current, improves the efficiency that passive balanced BMS implements managing electric quantity to lithium battery.
Embodiment 2
The present embodiment provides a kind of portable electrical equipment, includes the height of the low pressure charging/electrion of above-described embodiment 1
Press lithium battery pack.Preferably, portable electrical equipment is wireless welding equipment, wireless cutting equipment or mobile AC power etc..
Preferably, wireless welding equipment is wireless inverter arc welding electric welding machine, stud welding machine or mash welder etc..Preferably, wireless cutting is set
Standby is air plasma cutter etc..
When high pressure lithium battery pack is applied in mobile AC power, for example, mobile AC power includes what is be sequentially connected with
High pressure lithium battery pack, high frequency BOOST booster circuits and power frequency inverter circuit, when the DC voltage foot that high pressure lithium battery pack is exported
When enough high, high frequency BOOST booster circuits can also be omitted, directly connect high pressure lithium battery pack with power frequency inverter circuit, so as to
It can also avoid to bring the voltage up high cost and poor efficiency caused by more than 3 times.
When high pressure lithium battery pack is applied in stud welding machine, for example, stud welding machine includes the high pressure lithium electricity being sequentially connected with
Chi Bao and ghyristor circuit.
When high pressure lithium battery pack is applied in air plasma cutter, directly existing air plasma can be cut
The power supply of cutting mill replaces with high pressure lithium battery pack.
Charged below by low pressure/the wireless inverter arc welding electric welding machine of the lithium battery power supply of electrion exemplified by above-mentioned portable
Formula electrical equipment is introduced.
As shown in figure 4, the electric welding machine includes the high pressure lithium battery pack of low pressure charging/electrion in above-described embodiment 1
101st, inverter circuit 30, the gate-controlled switch 60 of transformer 40 and first.
The positive pole of high pressure lithium battery pack is connected with the first input end of inverter circuit 30, negative pole and the first gate-controlled switch 60
First end connects；Second end of the first gate-controlled switch 60 is connected with the second input of inverter circuit 30, for controllable first
Connection or the negative pole of high pressure lithium battery pack and inverse is disconnected under the control of switch controlling signal received by the control terminal of switch 60
Become the second input of circuit 30.
The output end of inverter circuit 30 is connected with the input of transformer 40, for the high pressure for exporting high pressure lithium battery pack
DC voltage is reverse into alternating voltage；Transformer 40 is used to for the AC voltage drop to be pressed into the low voltage for being suitable for welding.
Above-mentioned wireless inverter arc welding electric welding machine, high pressure lithium battery is formed after three lithium battery groups are connected in series by setting
Bag, to provide high-voltage dc voltage, so as to the controllable switch element for reducing inverter current to prevent from blowing up in circuit, improve
The stability of electric welding machine.Because the controllable switch element in circuit is hardly damaged, so also extending the use longevity of electric welding machine
Life.And because high pressure lithium battery pack can provide high-voltage dc voltage, so that inverter current is small, electric welder master worker welding
When hand-held soldering turret be not in big shake, soldering turret is more easy to manipulate, welds good hand touch, so as to improve the quality of welding.Together
When there are small volume, output power, in light weight, low cost and other advantages due to lithium battery, such as the lithium electricity of storage 1KWH electric energy
Pond group weight only has 7KG or so, so as to compared to Electricity generating welder, dramatically reduce the weight and volume of electric welding machine, improve
The portability of electric welding machine.It is respectively that each lithium battery group carries out independent constant current in addition, by setting low pressure charging circuit
Constant-voltage charge, it is possible to achieve stable low-voltage charging, so as to which potential safety hazard will not be brought to people, improve the safety of electric welding machine
Property.
Preferably, as shown in figure 5, above-mentioned wireless inverter arc welding electric welding machine also includes current rectifying and wave filtering circuit 50, its input
It is connected with the output end of transformer 40, the output end of current rectifying and wave filtering circuit 50 provides for the direct current welding current of the electric welding machine
End, for being exported after the low voltage for being suitable to welding is carried out into rectification and filtering, using the teaching of the invention it is possible to provide stable direct current welding electricity
Stream.
Preferably, above-mentioned inverter circuit 30, transformer 40 and current rectifying and wave filtering circuit 50 can use traditional at present
Circuit in AC110V inverter arc welding electric welding machines, i.e., it is the output of high pressure lithium battery pack is electric directly with traditional AC110V inverter arc weldings
Inverter circuit connection (other embodiment can use the circuit in traditional AC220V inverter arc weldings electric welding machine) in welding machine, such as Fig. 5
It is shown, form a 160A/28V electric welding machine.Because the electric welding machine is on the basis of traditional AC110V inverter arc weldings electric welding machine
What transformation formed, so as to economize on resources, to reduce production cost.
Preferably, above-mentioned wireless inverter arc welding electric welding machine also includes second controller, its input and high pressure lithium battery pack
Positive pole connection, output end is connected with the control terminal of the first gate-controlled switch 60, for detecting the voltage of high pressure lithium battery pack, and according to
This produces corresponding control signal and exported by its output end, the electricity of balanced management high pressure lithium battery pack, is carried for lithium battery group
Two level balance protection is supplied, so as to further extend the service life of lithium battery.
Preferably, second controller is passive equal for detecting and controlling also respectively with each passive balanced BMS13 connection
Weighing apparatus BMS13 working condition.Second controller also has communication interface, is connected for carrying out communication with the external world.
Embodiment 3
The present embodiment provides a kind of wireless inverter arc welding electric welding machine of lithium battery power supply of low pressure charging/electrion, with reality
Apply in example 2 except that, high pressure lithium battery pack is connected in series and formed by four 10 strings/36V lithium battery groups, its export high pressure
DC voltage is DC120V-DC168V, can be as the application that fan-out capability is 160A/28V electric welding machines.Preferably, high pressure lithium electricity
Chi Bao output directly can be connected with the inverter circuit in traditional AC110V inverter arc weldings electric welding machine, to form a 160A/28V
Electric welding machine.
Embodiment 4
The present embodiment provides a kind of wireless inverter arc welding electric welding machine of lithium battery power supply of low pressure charging/electrion, with reality
Apply in example 2 and 3 except that, high pressure lithium battery pack is connected in series and formed by four 13 strings/48V lithium battery groups, its export
High-voltage dc voltage is DC160V-DC216V, can be as the application that fan-out capability is 160A/28V-250A/34V electric welding machines.It is excellent
Selection of land, the output of high pressure lithium battery pack directly can be connected with the inverter circuit in traditional AC220V inverter arc weldings electric welding machine, with structure
Into a 160A/28V-250A/34V electric welding machine.
Embodiment 5
The present embodiment provides a kind of wireless inverter arc welding electric welding machine of lithium battery power supply of low pressure charging/electrion, with reality
Apply in example 2,3 and 4 except that, high pressure lithium battery pack is connected in series and formed by five 13 strings/48V lithium battery groups, its export
High-voltage dc voltage be DC200V-DC270V, can as fan-out capability be 250A/34V-315A/36V electric welding machines application.
Preferably, the output of high pressure lithium battery pack directly can be connected with the inverter circuit in traditional AC220V inverter arc weldings electric welding machine, with
Form a 250A/34V-315A/36V electric welding machine.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of high pressure lithium battery pack, it is characterised in that including at least three tunnel low pressure charging circuits (10) and at least three lithiums electricity
Pond group (20)；
Input per low pressure charging circuit (10) described all the way is connected with low-voltage power supply, output end and a lithium battery group
(20) connect, for being charged to a lithium battery group (20)；
At least three lithium battery group (20) is connected in series；
Each described low pressure charging circuit (10) includes isolation boosting circuit (11), the second gate-controlled switch (12) and passive equal
Weigh battery management system (13)；
The input of the isolation boosting circuit (11) is connected with low-voltage power supply, the first output end and a lithium battery group
(20) positive pole connection, the second output end are connected with the first end of second gate-controlled switch (12), for low-voltage power supply is electric
Source exports after carrying out isolation boosting；Second end of second gate-controlled switch (12) and the negative pole of one lithium battery group (20)
Connection, the control terminal of second gate-controlled switch (12) are connected with the output end of the passive balancing battery management system (13),
For controlling connection or disconnecting the second output end of the isolation boosting circuit (11) and bearing for one lithium battery group (20)
Pole；
The passive balancing battery management system (13) is used to detect each series lithium battery in one lithium battery group (20)
Voltage, and produce corresponding control signal accordingly and exported by its output end；
The passive balancing battery management system (13) also includes the first controller (131) and voltage detecting circuit (132)；
The input of first controller (131) is connected with the output end of the voltage detecting circuit (132), the first output end
As the output end of the passive balancing battery management system (13), other multiple output ends consume with multichannel respectively correspondingly
The input connection of energy circuit (133), the signal for being received according to input control to adjust multiple other output ends outputs
Voltage swing；
Multiple inputs of the voltage detecting circuit (132) connect respectively after RC filter circuits again correspondingly respectively with institute
The positive pole connection of each series lithium battery in a lithium battery group (20) is stated, for detecting the voltage of each series lithium battery and its is defeated
Go out；
The passive balancing battery management system (13) includes multichannel energy consuming circuitry (133)；Per energy consuming circuitry (133) described all the way
First input end be connected with the positive pole of the series lithium battery in one lithium battery group (20), the second input and described the
One of one controller (131) other output ends connection, output end is connected with the negative pole of a series lithium battery, for consuming
State the electricity of a series lithium battery；
Include the first triode (QPJ13), the second triode (QNJ11), first resistor per energy consuming circuitry (133) described all the way
(RJ131), second resistance (RJ132), 3rd resistor (RJ133) and the 4th resistance (RJ134)；First triode
(QPJ13) emitter-base bandgap grading is connected with the positive pole of a series lithium battery in one lithium battery group (20), first described in collector series connection
Negative pole of the resistance (RJ131) afterwards with a series lithium battery is connected, and base stage concatenates the 3rd resistor (RJ133) afterwards with described the
The colelctor electrode connection of two triodes (QNJ11)；The base stage of second triode (QNJ11) concatenates the 4th resistance
(RJ134) afterwards as other outputs described in the input of the energy consuming circuitry (133) and one of first controller (131)
End connection, emitter grounding；The second resistance (RJ132) is connected across on the emitter-base bandgap grading and base stage of first triode (QPJ13).
2. high pressure lithium battery pack according to claim 1, it is characterised in that
The high pressure lithium battery pack is mainly connected in series and formed by three 13 strings/48V lithium battery groups, its high voltage direct current exported
Press as DC120V-DC162V；Or
The high pressure lithium battery pack is mainly connected in series and formed by four 10 strings/36V lithium battery groups, its high voltage direct current exported
Press as DC120V-DC168V；Or
The high pressure lithium battery pack is mainly connected in series and formed by four 13 strings/48V lithium battery groups, its high voltage direct current exported
Press as DC160V-DC216V；Or
The high pressure lithium battery pack is mainly connected in series and formed by five 13 strings/48V lithium battery groups, its high voltage direct current exported
Press as DC200V-DC270V.
3. a kind of portable electrical equipment, it is characterised in that including the high pressure lithium battery as described in claim any one of 1-2
Bag.
4. portable electrical equipment according to claim 3, it is characterised in that the equipment is wireless welding equipment, nothing
Rope cutting equipment or mobile AC power.
5. portable electrical equipment according to claim 4, it is characterised in that the wireless welding equipment is wireless inversion
Arc-welding electric welding machine, stud welding machine or mash welder；
The wireless cutting equipment is air plasma cutter.
6. portable electrical equipment according to claim 5, it is characterised in that the wireless inverter arc welding electric welding machine also wraps
Include inverter circuit (30), transformer (40) and the first gate-controlled switch (60)；
The positive pole of the high pressure lithium battery pack is connected with the first input end of the inverter circuit (30), and negative pole and described first can
The first end connection of control switch (60)；Second end of first gate-controlled switch (60) and the second of the inverter circuit (30) defeated
Enter end connection, connected under the control for the switch controlling signal received by the control terminal in first gate-controlled switch (60)
Or disconnect the negative pole of the high pressure lithium battery pack and the second input of the inverter circuit (30)；
The output end of the inverter circuit (30) is connected with the input of the transformer (40), for by the high pressure lithium battery
The high-voltage dc voltage of bag output is reverse into alternating voltage；The transformer (40) is used to the AC voltage drop being pressed into low pressure
Voltage.
7. portable electrical equipment according to claim 6, it is characterised in that the wireless inverter arc welding electric welding machine also wraps
Current rectifying and wave filtering circuit (50) is included, its input is connected with the output end of the transformer (40), the current rectifying and wave filtering circuit (50)
Output end provide end for the DC current of the equipment, for will the low voltage carry out rectification and filtering after export.
8. the portable electrical equipment according to claim 6 or 7, it is characterised in that the wireless inverter arc welding electric welding machine
Also include second controller, its input is connected with the positive pole of the high pressure lithium battery pack, and output end controllable is opened with described first
The control terminal connection of (60) is closed, for detecting the voltage of the high pressure lithium battery pack, and corresponding control signal is produced accordingly and leads to
Cross the output of its output end, the electricity of high pressure lithium battery pack described in balanced management.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884510.4A CN105356549B (en) | 2015-10-28 | 2015-12-04 | High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack |
| PCT/CN2016/077324 WO2017092200A1 (en) | 2015-10-28 | 2016-03-25 | High-voltage lithium battery pack, and portable electric device comprising same |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520843455 | 2015-10-28 | ||
| CN201510711331 | 2015-10-28 | ||
| CN201520843455X | 2015-10-28 | ||
| CN2015107113310 | 2015-10-28 | ||
| CN201510884510.4A CN105356549B (en) | 2015-10-28 | 2015-12-04 | High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105356549A CN105356549A (en) | 2016-02-24 |
| CN105356549B true CN105356549B (en) | 2018-03-20 |
Family
ID=55332457
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521004021.7U Expired - Fee Related CN205178589U (en) | 2015-10-28 | 2015-12-04 | High pressure lithium cell package and portable consumer that wraps including this high pressure lithium cell |
| CN201510884510.4A Expired - Fee Related CN105356549B (en) | 2015-10-28 | 2015-12-04 | High pressure lithium battery pack and the portable electrical equipment for including the high pressure lithium battery pack |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521004021.7U Expired - Fee Related CN205178589U (en) | 2015-10-28 | 2015-12-04 | High pressure lithium cell package and portable consumer that wraps including this high pressure lithium cell |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN205178589U (en) |
| WO (1) | WO2017092200A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205178589U (en) * | 2015-10-28 | 2016-04-20 | 富尔盛科技（深圳）有限公司 | High pressure lithium cell package and portable consumer that wraps including this high pressure lithium cell |
| CN105762894A (en) * | 2016-05-04 | 2016-07-13 | 广东金莱特电器股份有限公司 | Lithium battery equalizing charging algorithm |
| CN106655369A (en) * | 2016-07-25 | 2017-05-10 | 苏州绿恺动力电子科技有限公司 | Portable decompressed-start AC mobile power supply |
| CN106712520A (en) * | 2016-07-25 | 2017-05-24 | 苏州绿恺动力电子科技有限公司 | Portable lithium battery pack-based inverter arc welding system of electric welding machine |
| CN111725851B (en) * | 2019-03-20 | 2022-08-16 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | High-voltage lithium battery energy storage system and method |
| CN110266068B (en) * | 2019-06-18 | 2023-11-07 | 季华实验室 | High-voltage battery control circuit, control method and storage medium |
| CN111509808A (en) * | 2020-05-11 | 2020-08-07 | 浙江科技学院 | Lithium battery pack battery management system and management method |
| CN115663974A (en) * | 2022-11-21 | 2023-01-31 | 宁波芯合为一电子科技有限公司 | Control method and device for mobile energy storage type pulse welding power supply |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN205178589U (en) | 2016-04-20 |
| CN105356549A (en) | 2016-02-24 |
| WO2017092200A1 (en) | 2017-06-08 |
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Effective date of registration: 20170203 Address after: 518028 Guangdong city of Shenzhen province Futian District Shatou Street Xintian Century Business Center C building 28 room 2804 Applicant after: Shenzhen Power Technology Co., Ltd. Address before: Shangbu industrial plant in Futian District Huaqiang North Road, Shenzhen City, Guangdong province 518028 Pengji 205 building 4038 Applicant before: Fullshine Technology (Shenzhen) Co., Ltd. |
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