CN105356549A - High-voltage lithium battery pack and portable electrical device comprising same - Google Patents
High-voltage lithium battery pack and portable electrical device comprising same Download PDFInfo
- Publication number
- CN105356549A CN105356549A CN201510884510.4A CN201510884510A CN105356549A CN 105356549 A CN105356549 A CN 105356549A CN 201510884510 A CN201510884510 A CN 201510884510A CN 105356549 A CN105356549 A CN 105356549A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- voltage
- high pressure
- output
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0018—Circuits for equalisation of charge between batteries using separate charge circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a high-voltage lithium battery pack and a portable electrical device comprising the same. The high-voltage lithium battery pack comprises at least three low-voltage charge circuits and at least three lithium battery packs, wherein the input end of each low-voltage charge circuit is connected with a low-voltage power supply source, and the output end of each low-voltage charge circuit is connected with one lithium battery pack for charging the lithium battery pack; and the at least three lithium battery packs are connected in series. The high-voltage lithium battery pack and the portable electrical device comprising the same have the advantages of good portability and good stability.
Description
Technical field
The present invention relates to technical field of lithium batteries, be specifically related to a kind of high pressure lithium battery bag and comprise the equipment of this high pressure lithium battery bag, especially relate to a kind of high pressure lithium battery bag that can realize low-voltage charging and high-voltage discharge.
Background technology
Current widely used electric welding machine or cutting machine are all generally corded devices, and adopt AC ac power supply, it generally has AC110V and AC220V ac power supply two kinds.AC110V and the AC220V corded device technology of this quasi-tradition is very ripe, but there is the defect needing external AC110V or AC220V AC power normally to work, so be not easy to use under the occasion without this type of external AC power supply, such as newly-built, simple and crude engineering construction environment, power failure environment are medium, do not have portability.
For this reason, having in prior art provides that some improve, has the wireless Electricity generating welder of electricity generate function or cutting machine, and without the need to external AC power supply, solving needs external AC power supply could the problem of normal work.But this kind equipment existing needs gasoline driven, and weight and volume is all larger, it is all very inconvenient to carry and place.And this kind equipment running noises is larger, generally can reach more than 100 decibels, also can cause the noise pollution of job site.So portability does not obtain too large improvement.
Some the wireless electric welding machine adopting rechargeable battery to power or cutting machines are provided in prior art in addition, also without the need to external AC power supply, also solve the problem needing external AC power supply normally to work.But the rechargeable battery of this type of equipment use existing is generally DC48V and DC36V, and supply power voltage is lower, so required DC/DC inverter current is comparatively large, thus be easy to blow up electronic switch, the therefore non-constant of the stability of this kind equipment.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that the portability of the power consumption equipments such as electric welding machine of the prior art or cutting machine is poor, poor stability.
For this reason, the high pressure lithium battery bag of a kind of low pressure charging/electrion of the present invention, comprises at least three tunnel low pressure charging circuits and at least three lithium battery groups;
Described in each road, the input of low pressure charging circuit is connected with low-voltage power supply, and output is connected with a lithium battery group, for giving a lithium battery group charging;
Described at least three lithium battery groups are connected in series.
Preferably, low pressure charging circuit described in each includes isolation boosting circuit, the second gate-controlled switch and passive balancing battery management system;
The input of described isolation boosting circuit is connected with low-voltage power supply, and the first output is connected with the positive pole of a lithium battery group, and the second output is connected with the first end of described second gate-controlled switch, exports after low-voltage power supply is carried out isolation boosting; Second end of described second gate-controlled switch is connected with the negative pole of a described lithium battery group, the control end of described second gate-controlled switch is connected with the output of described passive balancing battery management system, is communicated with for controlling or disconnects the second output of described isolation boosting circuit and the negative pole of a described lithium battery group;
Described passive balancing battery management system for detecting the voltage of each series lithium battery in a described lithium battery group, and is produced corresponding control signal accordingly and is exported by its output.
Preferably, described passive balancing battery management system comprises the first controller, voltage detecting circuit and multichannel energy consuming circuitry;
The input of described first controller is connected with the output of described voltage detecting circuit, first output is as the output of described passive balancing battery management system, other outputs multiple are connected with the input of multichannel energy consuming circuitry correspondingly respectively, the voltage swing that the signal controlling for receiving according to input regulates other outputs multiple to export;
Multiple inputs of described voltage detecting circuit are connected, for detecting the voltage of each series lithium battery and being exported with the positive pole of each series lithium battery in a described lithium battery group correspondingly respectively;
The first input end of energy consuming circuitry described in each road is connected with the positive pole of the series lithium battery in a described lithium battery group, second input is connected with other outputs of described first controller, output is connected with the negative pole of a described series lithium battery, for consuming the electricity of a described series lithium battery.
Preferably, energy consuming circuitry described in each road includes the first triode, the second triode, the first resistance, the second resistance, the 3rd resistance and the 4th resistance; The emitter-base bandgap grading of described first triode is connected with the positive pole of a series lithium battery in a described lithium battery group, be connected with the negative pole of a described series lithium battery after first resistance described in collector series connection, be connected with the collector electrode of described second triode after described 3rd resistance of base stage serial connection; Be connected as other outputs described in of input and described first controller of described energy consuming circuitry after described 4th resistance of base stage serial connection of described second triode, grounded collector; In the emitter-base bandgap grading that described second resistance is connected across described first triode and base stage.
Preferably,
Described high pressure lithium battery bag is connected in series formation primarily of three 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC120V-DC162V; Or
Described high pressure lithium battery bag is connected in series formation primarily of four 10 string/36V lithium battery groups, and its high-voltage dc voltage exported is DC120V-DC168V; Or
Described high pressure lithium battery bag is connected in series formation primarily of four 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC160V-DC216V; Or
Described high pressure lithium battery bag is connected in series formation primarily of five 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC200V-DC270V.
The portable power consumption equipment of one of the present invention, comprises the high pressure lithium battery bag of above-mentioned low pressure charging/electrion.
Preferably, described equipment is wireless welding equipment, wireless cutting equipment or mobile AC power.
Preferably, described wireless welding equipment is wireless inverter arc welding electric welding machine, stud welding machine or spot welding machine.
Preferably, described wireless cutting equipment is air plasma cutter.
Preferably, described wireless inverter arc welding electric welding machine also comprises inverter circuit, transformer and the first gate-controlled switch;
The positive pole of described high pressure lithium battery bag is connected with the first input end of described inverter circuit, and negative pole is connected with the first end of described first gate-controlled switch; Second end of described first gate-controlled switch is connected with the second input of described inverter circuit, for being communicated with under the control of the switch controlling signal received by the control end at described first gate-controlled switch or disconnecting the described negative pole of high pressure lithium battery bag and the second input of described inverter circuit;
The output of described inverter circuit is connected with the input of described transformer, is reverse into alternating voltage for the high-voltage dc voltage exported by described high pressure lithium battery bag; Described transformer is used for described AC voltage drop to be pressed into low voltage voltage.
Preferably, described wireless inverter arc welding electric welding machine also comprises current rectifying and wave filtering circuit, its input is connected with the output of described transformer, and the output of described current rectifying and wave filtering circuit is the direct current providing end of described equipment, exports after described low voltage voltage is carried out rectification and filtering.
Preferably, described wireless inverter arc welding electric welding machine also comprises second controller, its input is connected with the positive pole of described high pressure lithium battery bag, output is connected with the control end of described first gate-controlled switch, for detecting the voltage of described high pressure lithium battery bag, and produce corresponding control signal accordingly and exported by its output, the electricity of high pressure lithium battery bag described in balanced management.
Technical solution of the present invention, tool has the following advantages:
1. the high pressure lithium battery bag of low pressure charging/electrion that provides of the embodiment of the present invention, by arranging at least three tunnel low pressure charging circuits and at least three lithium battery groups, and a lithium battery group charging given by each road low pressure charging circuit, thus achieve the low pressure charging of grouping.By arranging, at least three lithium battery groups are connected in series, rear formation high pressure lithium battery bag, export to provide high-voltage dc voltage, thus be particularly suitable for working as at electric welding machine, or use in the equipment such as cutting machine or mobile AC power, and owing to employing high pressure lithium battery bag as power supply, without the need to external power supply, and due to lithium battery, to have volume little, power output is large, lightweight, low cost and other advantages, the lithium battery group weight such as storing 1KWH electric energy only has about 7KG, thus drastically increase the portability of the power consumption equipment employing this high pressure lithium battery bag.
2. the high pressure lithium battery bag of low pressure charging/electrion that provides of the embodiment of the present invention, by arranging passive balanced BMS for each low pressure charging current, for lithium battery group provides the mop-up equalization of passive type charge/discharge, thus extend the useful life of lithium battery group, further increase the stability of equipment.And the requirement that also can reduce lithium battery long-term consistency, thus can the lower domestic lithium battery of use cost, the cost of equipment can be reduced.
3. the high pressure lithium battery bag of low pressure charging/electrion that provides of the embodiment of the present invention, by arranging, multiple inputs of voltage detecting circuit are connected with the positive pole of each series lithium battery in a lithium battery group correspondingly respectively, the voltage of each series lithium battery can be detected, by arranging the voltage swing of the output that the first controller can be connected with energy consuming circuitry according to the corresponding regulating and controlling of the voltage of each series lithium battery received, to regulate the charge/discharge current of each series lithium battery, thus ensure that the equilibrium of each series lithium battery, extend the useful life of lithium battery.
4. the high pressure lithium battery bag of low pressure charging/electrion that provides of the embodiment of the present invention, can being connected in series by three 13 string/48V lithium battery groups respectively by arranging high pressure lithium battery bag of innovation, four 10 string/36V lithium battery groups are connected in series, four 13 string/48V lithium battery groups are connected in series or five 13 string/48V lithium battery groups are connected in series formation, DC120V-DC162V can be provided respectively, DC120V-DC168V, DC160V-DC216V or DC200V-DC270V High voltage output voltage, thus such as can respectively as 160A/28V, 160A/28V, 160A/28V-250A/34V, 250A/34V-315A/36V electric welding machine is applied, obtain 4 kinds of fan-out capability (160A/28V of current welding machine profession Plays, 200A/32V, 250A/34V, electric welding machine 315A/36V).Meanwhile, according to the demand of practical application for the supply power voltage of cutting machine and mobile AC power, the cutting machine of industry Plays model and the application of mobile AC power can also be obtained.
5. the equipment of the lithium battery power supply of low pressure charging/electrion that provides of the embodiment of the present invention; by arranging second controller; balanced management between can realizing at least three lithium battery groups, for lithium battery group provides secondary balance protection, thus extends the useful life of equipment further.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the specific embodiment of the invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the theory diagram of a concrete example of the high pressure lithium battery bag of the embodiment of the present invention 1 mesolow charging/electrion;
Fig. 2 is the theory diagram of a concrete example of low pressure charging circuit of the present invention;
Fig. 3 is the theory diagram of a concrete example of the present invention's passive balancing battery management system;
Fig. 4 is the theory diagram of a concrete example of the lithium battery power supply wireless inverter arc welding electric welding machine of the embodiment of the present invention 2 mesolow charging/electrion;
Fig. 5 is the theory diagram of another concrete example of the lithium battery power supply wireless inverter arc welding electric welding machine of the embodiment of the present invention 2 mesolow charging/electrion.
Reference numeral: 10-low pressure charging circuit, 20-lithium battery group, 30-inverter circuit, 40-transformer, 50-current rectifying and wave filtering circuit, 60-first gate-controlled switch, 11-isolation boosting circuit, 12-second gate-controlled switch, the passive balancing battery management system of 13-, 131-first controller, 132-voltage detecting circuit, 133-energy consuming circuitry, 101-high pressure lithium battery bag.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, term " first ", " second ", " the 3rd " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.Unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be directly be connected, also indirectly can be connected by intermediary, can also be the connection of two element internals, can be wireless connections, also can be wired connection.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In addition, if below in the described different execution mode of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiment 1
The present embodiment provides a kind of high pressure lithium battery bag of low pressure charging/electrion, as shown in Figure 1, comprises at least three tunnel low pressure charging circuits 10 and at least three lithium battery groups 20.This lithium battery group can be such as 13 strings/48V lithium battery group, and the quantity of lithium battery group is not limited to three, and more lithium battery group is also feasible.Such as, three 13 string/48V lithium battery groups are connected in series, and its high-voltage dc voltage exported is DC120V-DC162V; Or four 10 string/36V lithium battery groups are connected in series, its high-voltage dc voltage exported is DC120V-DC168V; Or four 13 string/48V lithium battery groups are connected in series, its high-voltage dc voltage exported is DC160V-DC216V; Or five 13 string/48V lithium battery groups are connected in series, its high-voltage dc voltage exported is DC200V-DC270V.Thus such as can apply respectively as 160A/28V, 160A/28V, 160A/28V-250A/34V, 250A/34V-315A/36V electric welding machine, obtain the electric welding machine of 4 kinds of fan-out capabilities (160A/28V, 200A/32V, 250A/34V, 315A/36V) of current welding machine profession Plays.Meanwhile, according to the demand of practical application for the supply power voltage of cutting machine and mobile AC power, the cutting machine of industry Plays model and the application of mobile AC power can also be obtained.
The input of each road low pressure charging circuit 10 is connected with low-voltage power supply, and output is connected with a lithium battery group 20, charges for giving a lithium battery group 20.Preferably, low-voltage power supply is DC24V-DC36V power supply, because low-voltage power supply is less than 36V, so can not bring potential safety hazard to human body, improves the fail safe of electric welding machine.At least three lithium battery groups 20 are connected in series.
The high pressure lithium battery bag of above-mentioned low pressure charging/electrion, by arranging at least three tunnel low pressure charging circuits and at least three lithium battery groups, and a lithium battery group charging given by each road low pressure charging circuit, thus achieves the low pressure charging of grouping.By arranging, at least three lithium battery groups are connected in series, rear formation high pressure lithium battery bag, export to provide high-voltage dc voltage, thus be particularly suitable for working as at electric welding machine, or use in the equipment such as cutting machine or mobile AC power, and owing to employing high pressure lithium battery bag as power supply, without the need to external power supply, and due to lithium battery, to have volume little, power output is large, lightweight, low cost and other advantages, the lithium battery group weight such as storing 1KWH electric energy only has about 7KG, thus drastically increase the portability of the power consumption equipment employing this high pressure lithium battery bag.
Preferably, as shown in Figure 2, each low pressure charging circuit 10 includes isolation boosting circuit 11, second gate-controlled switch 12 and passive balancing battery management system (BMS) 13.
The input of isolation boosting circuit 11 is connected with low-voltage power supply, and the first output is connected with the positive pole of a lithium battery group 20, and the second output is connected with the first end of the second gate-controlled switch 12, exports after low-voltage power supply is carried out isolation boosting; Second end of the second gate-controlled switch 12 is connected with the negative pole of a lithium battery group 20, the control end of the second gate-controlled switch 12 connects with the output of passive balanced BMS13, is communicated with or disconnects the second output of isolation boosting circuit 11 and the negative pole of a lithium battery group 20 for controlling.
Passive balanced BMS13 for detecting the voltage of each series lithium battery in a lithium battery group 20, and is produced corresponding control signal accordingly and is exported by its output.
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, the circuit that also can carry out low pressure charging for lithium battery group by other realizes.
The high pressure lithium battery bag of above-mentioned low pressure charging/electrion, by arranging passive balanced BMS for each low pressure charging current, for lithium battery group provides the mop-up equalization of passive type charge/discharge, thus extend the useful life of lithium battery group, further increase the stability of equipment.And the requirement that also can reduce lithium battery long-term consistency, thus can the lower domestic lithium battery of use cost, the cost of equipment can be reduced.
Preferably, as shown in Figure 3, passive balanced BMS13 comprises the first controller 131, voltage detecting circuit 132 and multichannel energy consuming circuitry 133.The input of the first controller 131 is connected with the output of voltage detecting circuit 132, first output is as the output of passive balanced BMS13, multiple other outputs BJ1-BJ13 is connected with the input of multichannel energy consuming circuitry 133 correspondingly respectively, the voltage swing that the signal controlling for receiving according to input regulates other outputs multiple to export.
Multiple input VBD1+ to VBD13+ of voltage detecting circuit 132 are connected with the positive pole of each series lithium battery in a lithium battery group 20, correspondingly respectively for detecting the voltage of each series lithium battery and being exported.Preferably, as shown in Figure 3, multiple input VBD1+ to VBD13+ is connected with the positive pole of each series lithium battery in a lithium battery group 20 after can also connecting RC filter circuit respectively more correspondingly respectively, improves antijamming capability.
The first input end of each road energy consuming circuitry 133 is connected with the positive pole of the series lithium battery in a lithium battery group 20, second input is connected with other outputs of the first controller 131, output is connected with the negative pole of a series lithium battery, 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 can be provided the circuit of balanced management to realize for lithium battery by other.
The high pressure lithium battery bag of above-mentioned low pressure charging/electrion, by arranging, multiple inputs of voltage detecting circuit are connected with the positive pole of each series lithium battery in a lithium battery group correspondingly respectively, the voltage of each series lithium battery can be detected, by arranging the voltage swing of the output that the first controller can be connected with energy consuming circuitry according to the corresponding regulating and controlling of the voltage of each series lithium battery received, to regulate the charge/discharge current of each series lithium battery, thus ensure that the equilibrium of each series lithium battery, extend the useful life of lithium battery.
Preferably, each road energy consuming circuitry 133 includes the first triode QPJ13, the second triode QNJ11, the first resistance RJ131, the second resistance RJ132, the 3rd resistance RJ133 and the 4th resistance RJ134; The emitter-base bandgap grading of the first triode QPJ13 is connected with the positive pole of a series lithium battery in a lithium battery group 20, be connected with the negative pole of a series lithium battery after collector series connection first resistance RJ131, be connected with the collector electrode of the second triode QNJ11 after base stage serial connection the 3rd resistance RJ133; Be connected with other outputs of the first controller 131 as the input of energy consuming circuitry 133 after base stage serial connection the 4th resistance RJ134 of the second triode QNJ11, grounded collector; In the emitter-base bandgap grading that second resistance RJ132 is connected across the first triode QPJ13 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, also can be realized for the circuit of lithium battery release electricity by other.
The high pressure lithium battery bag of above-mentioned low pressure charging/electrion, by arranging the first triode and the second triode, improves discharging current, improves passive balanced BMS implements managing electric quantity efficiency to lithium battery.
Embodiment 2
The present embodiment provides a kind of portable power consumption equipment, comprises the high pressure lithium battery bag of the low pressure charging/electrion of above-described embodiment 1.Preferably, portable power consumption 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 spot welding machine etc.Preferably, wireless cutting equipment is air plasma cutter etc.
When high pressure lithium battery bag is applied in mobile AC power, such as, mobile AC power comprises the high pressure lithium battery bag, high frequency BOOST booster circuit and the power frequency inverter circuit that connect in turn, when the direct voltage that high pressure lithium battery bag exports is enough high, high frequency BOOST booster circuit can also be omitted, directly high pressure lithium battery bag is connected with power frequency inverter circuit, thus also can avoids to voltage be raised more than the 3 times high costs and poor efficiency produced.
When high pressure lithium battery bag is applied in stud welding machine, such as, stud welding machine comprises the high pressure lithium battery bag and ghyristor circuit that connect in turn.
When high pressure lithium battery bag is applied in air plasma cutter, directly the power supply of existing air plasma cutter can be replaced with high pressure lithium battery bag.
For the wireless inverter arc welding electric welding machine of the lithium battery power supply of low pressure charging/electrion, above-mentioned portable power consumption equipment is introduced below.
As shown in Figure 4, this electric welding machine comprises the high pressure lithium battery bag 101 of the low pressure charging/electrion in above-described embodiment 1, inverter circuit 30, transformer 40 and the first gate-controlled switch 60.
The positive pole of high pressure lithium battery bag is connected with the first input end of inverter circuit 30, and negative pole is connected with the first end of the first gate-controlled switch 60; Second end of the first gate-controlled switch 60 is connected with the second input of inverter circuit 30, for being communicated with under the control of the switch controlling signal received by the control end at the first gate-controlled switch 60 or disconnecting the negative pole of high pressure lithium battery bag and the second input of inverter circuit 30.
The output of inverter circuit 30 is connected with the input of transformer 40, is reverse into alternating voltage for the high-voltage dc voltage exported by high pressure lithium battery bag; Transformer 40 is for being pressed into the low voltage voltage being suitable for welding by described AC voltage drop.
Above-mentioned wireless inverter arc welding electric welding machine, by arranging, three lithium battery groups are connected in series rear formation high pressure lithium battery bag, to provide high-voltage dc voltage, thus inverter current can be reduced to prevent the controllable switch element blown up in circuit, improve the stability of electric welding machine.Because the controllable switch element in circuit is not fragile, so also extend the useful life of electric welding machine.And because high pressure lithium battery bag can provide high-voltage dc voltage, thus make inverter current little, when electric welder master worker welds, hand-held soldering turret there will not be large shake, and soldering turret more easily manipulates, weld good hand touch, thus can improve the quality of welding.Because lithium battery has, volume is little, power output is large, lightweight, low cost and other advantages simultaneously, the lithium battery group weight such as storing 1KWH electric energy only has about 7KG, thus compared to Electricity generating welder, dramatically reduce the weight and volume of electric welding machine, improve the portability of electric welding machine.In addition, by arranging low pressure charging circuit, being respectively each lithium battery group and carrying out independently constant-current constant-voltage charging, stable low-voltage charging can be realized, thus potential safety hazard can not be brought to people, improve the fail safe of electric welding machine.
Preferably, as shown in Figure 5, above-mentioned wireless inverter arc welding electric welding machine also comprises current rectifying and wave filtering circuit 50, its input is connected with the output of transformer 40, the output of current rectifying and wave filtering circuit 50 is the direct current welding current providing end of described electric welding machine, export after the described low voltage voltage being suitable for welding is carried out rectification and filtering, stable direct current welding current can be provided.
Preferably, above-mentioned inverter circuit 30, transformer 40 and current rectifying and wave filtering circuit 50 can adopt the circuit in AC110V inverter arc welding electric welding machine traditional at present, output by high pressure lithium battery bag is directly connected with the inverter circuit in traditional AC110V inverter arc welding electric welding machine (other embodiments can adopt the circuit in traditional AC220V inverter arc welding electric welding machine), as shown in Figure 5, a 160A/28V electric welding machine is formed.Because this electric welding machine transforms on the basis of traditional AC110V inverter arc welding electric welding machine, thus can economize on resources, to reduce production cost.
Preferably; above-mentioned wireless inverter arc welding electric welding machine also comprises second controller; its input is connected with the positive pole of high pressure lithium battery bag; output is connected with the control end of the first gate-controlled switch 60; for detecting the voltage of high pressure lithium battery bag, and produce corresponding control signal accordingly and exported by its output, the electricity of balanced management high pressure lithium battery bag; for lithium battery group provides secondary balance protection, thus extend the useful life of lithium battery further.
Preferably, second controller also respectively balanced BMS13 passive with each connect, for the operating state of the passive balanced BMS13 of detection and control.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 lithium battery power supply of low pressure charging/electrion wireless inverter arc welding electric welding machine, with difference in embodiment 2 be, high pressure lithium battery bag is connected in series by four 10 string/36V lithium battery groups and forms, its high-voltage dc voltage exported is DC120V-DC168V, can be used as the application that fan-out capability is 160A/28V electric welding machine.Preferably, the output of high pressure lithium battery bag can directly be connected with the inverter circuit in traditional AC110V inverter arc welding electric welding machine, to form a 160A/28V electric welding machine.
Embodiment 4
The present embodiment provides a kind of lithium battery power supply of low pressure charging/electrion wireless inverter arc welding electric welding machine, with difference in embodiment 2 and 3 be, high pressure lithium battery bag is connected in series by four 13 string/48V lithium battery groups and forms, its high-voltage dc voltage exported is DC160V-DC216V, can be used as the application that fan-out capability is 160A/28V-250A/34V electric welding machine.Preferably, the output of high pressure lithium battery bag can directly be connected with the inverter circuit in traditional AC220V inverter arc welding electric welding machine, to form a 160A/28V-250A/34V electric welding machine.
Embodiment 5
The present embodiment provides a kind of lithium battery power supply of low pressure charging/electrion wireless inverter arc welding electric welding machine, with difference in embodiment 2,3 and 4 be, high pressure lithium battery bag is connected in series by five 13 string/48V lithium battery groups and forms, its high-voltage dc voltage exported is DC200V-DC270V, can be used as the application that fan-out capability is 250A/34V-315A/36V electric welding machine.Preferably, the output of high pressure lithium battery bag can directly be connected with the inverter circuit in traditional AC220V inverter arc welding electric welding machine, to form a 250A/34V-315A/36V electric welding machine.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (11)
1. a high pressure lithium battery bag for low pressure charging/electrion, is characterized in that, comprises at least three tunnels low pressure charging circuit (10) and at least three lithium battery groups (20);
Described in each road, the input of low pressure charging circuit (10) is connected with low-voltage power supply, and output is connected with a lithium battery group (20), for giving lithium battery group (20) charging;
Described at least three lithium battery groups (20) are connected in series.
2. high pressure lithium battery bag according to claim 1, it is characterized in that, low pressure charging circuit (10) described in each includes isolation boosting circuit (11), the second gate-controlled switch (12) and passive balancing battery management system (13);
The input of described isolation boosting circuit (11) is connected with low-voltage power supply, first output is connected with the positive pole of a lithium battery group (20), second output is connected with the first end of described second gate-controlled switch (12), exports after low-voltage power supply is carried out isolation boosting; Second end of described second gate-controlled switch (12) is connected with the negative pole of a described lithium battery group (20), the control end of described second gate-controlled switch (12) is connected with the output of described passive balancing battery management system (13), is communicated with for controlling or disconnects the second output of described isolation boosting circuit (11) and the negative pole of a described lithium battery group (20);
Described passive balancing battery management system (13) for detecting the voltage of each series lithium battery in a described lithium battery group (20), and is produced corresponding control signal accordingly and is exported by its output.
3. high pressure lithium battery bag according to claim 2, it is characterized in that, described passive balancing battery management system (13) comprises the first controller (131), voltage detecting circuit (132) and multichannel energy consuming circuitry (133);
The input of described first controller (131) is connected with the output of described voltage detecting circuit (132), first output is as the output of described passive balancing battery management system (13), other outputs multiple are connected with the input of multichannel energy consuming circuitry (133) correspondingly respectively, the voltage swing that the signal controlling for receiving according to input regulates other outputs multiple to export;
Multiple inputs of described voltage detecting circuit (132) are connected, for detecting the voltage of each series lithium battery and being exported with the positive pole of each series lithium battery in a described lithium battery group (20) correspondingly respectively;
The first input end of energy consuming circuitry (133) described in each road is connected with the positive pole of the series lithium battery in a described lithium battery group (20), second input is connected with other outputs of described first controller (131), output is connected with the negative pole of a described series lithium battery, for consuming the electricity of a described series lithium battery.
4. high pressure lithium battery bag according to claim 3, it is characterized in that, energy consuming circuitry (133) described in each road includes the first triode (QPJ13), the second triode (QNJ11), the first resistance (RJ131), the second resistance (RJ132), the 3rd resistance (RJ133) and the 4th resistance (RJ134); The emitter-base bandgap grading of described first triode (QPJ13) is connected with the positive pole of a series lithium battery in a described lithium battery group (20), described in collector series connection, the first resistance (RJ131) is connected with the negative pole of a described series lithium battery afterwards, and described 3rd resistance (RJ133) of base stage serial connection is connected with the collector electrode of described second triode (QNJ11) afterwards; Be connected as other outputs described in of input and described first controller (131) of described energy consuming circuitry (133) after described 4th resistance (RJ134) of base stage serial connection of described second triode (QNJ11), grounded collector; In the emitter-base bandgap grading that described second resistance (RJ132) is connected across described first triode (QPJ13) and base stage.
5. the high pressure lithium battery bag according to any one of claim 1-4, is characterized in that,
Described high pressure lithium battery bag is connected in series formation primarily of three 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC120V-DC162V; Or
Described high pressure lithium battery bag is connected in series formation primarily of four 10 string/36V lithium battery groups, and its high-voltage dc voltage exported is DC120V-DC168V; Or
Described high pressure lithium battery bag is connected in series formation primarily of four 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC160V-DC216V; Or
Described high pressure lithium battery bag is connected in series formation primarily of five 13 string/48V lithium battery groups, and its high-voltage dc voltage exported is DC200V-DC270V.
6. a portable power consumption equipment, is characterized in that, comprises the high pressure lithium battery bag of the low pressure charging/electrion as described in any one of claim 1-5.
7. portable power consumption equipment according to claim 6, is characterized in that, described equipment is wireless welding equipment, wireless cutting equipment or mobile AC power.
8. portable power consumption equipment according to claim 7, is characterized in that, described wireless welding equipment is wireless inverter arc welding electric welding machine, stud welding machine or spot welding machine;
Described wireless cutting equipment is air plasma cutter.
9. portable power consumption equipment according to claim 8, is characterized in that, described wireless inverter arc welding electric welding machine also comprises inverter circuit (30), transformer (40) and the first gate-controlled switch (60);
The positive pole of described high pressure lithium battery bag is connected with the first input end of described inverter circuit (30), and negative pole is connected with the first end of described first gate-controlled switch (60); Second end of described first gate-controlled switch (60) is connected with the second input of described inverter circuit (30), is communicated with or disconnects the negative pole of described high pressure lithium battery bag and the second input of described inverter circuit (30) under the control for the switch controlling signal received by the control end described first gate-controlled switch (60);
The output of described inverter circuit (30) is connected with the input of described transformer (40), is reverse into alternating voltage for the high-voltage dc voltage exported by described high pressure lithium battery bag; Described transformer (40) is for being pressed into low voltage voltage by described AC voltage drop.
10. portable power consumption equipment according to claim 9, it is characterized in that, described wireless inverter arc welding electric welding machine also comprises current rectifying and wave filtering circuit (50), its input is connected with the output of described transformer (40), the output of described current rectifying and wave filtering circuit (50) is the direct current providing end of described equipment, exports after described low voltage voltage is carried out rectification and filtering.
11. portable power consumption equipments according to claim 9 or 10, it is characterized in that, described wireless inverter arc welding electric welding machine also comprises second controller, its input is connected with the positive pole of described high pressure lithium battery bag, output is connected with the control end of described first gate-controlled switch (60), for detecting the voltage of described high pressure lithium battery bag, and produce corresponding control signal accordingly and exported by its output, the electricity of high pressure lithium battery bag 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 | ||
| CN201520843455X | 2015-10-28 | ||
| CN201510711331 | 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 true CN105356549A (en) | 2016-02-24 |
| CN105356549B 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) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2017092200A1 (en) * | 2015-10-28 | 2017-06-08 | 深圳市盈动力科技有限公司 | High-voltage lithium battery pack, and portable electric device comprising same |
| CN110266068A (en) * | 2019-06-18 | 2019-09-20 | 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 |
| CN111725851A (en) * | 2019-03-20 | 2020-09-29 | 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 |
| 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 |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325271A (en) * | 2008-07-30 | 2008-12-17 | 赵建和 | Device for managing equalization of series battery |
| CN101728852A (en) * | 2009-11-04 | 2010-06-09 | 秦永振 | Battery equilibrium charging and detecting and repairing device |
| CN101752882A (en) * | 2008-11-28 | 2010-06-23 | 比亚迪股份有限公司 | Equalizer and equalizing charging method |
| CN101969214A (en) * | 2010-10-09 | 2011-02-09 | 华为技术有限公司 | Battery pack and control method thereof |
| CN101985187A (en) * | 2010-09-19 | 2011-03-16 | 深圳市华意隆实业发展有限公司 | Energy storage inverter type air plasma cutter for rescue emergencies |
| CN102005797A (en) * | 2010-12-08 | 2011-04-06 | 夏正奎 | Active self-management charging device of lithium-ion power battery |
| CN102017357A (en) * | 2008-04-22 | 2011-04-13 | Sk能源株式会社 | Two-stage charge equalization method and apparatus for series-connected battery string |
| CN102593897A (en) * | 2012-02-16 | 2012-07-18 | 荆门东光新能源科技有限公司 | Valley-filling type equalization module for power lithium battery pack |
| CN103187744A (en) * | 2011-12-30 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Power supply device |
| CN103208828A (en) * | 2012-01-17 | 2013-07-17 | 中国科学院广州能源研究所 | Management system for serial connected battery packs |
| CN203840036U (en) * | 2014-05-28 | 2014-09-17 | 耿直 | Boost-type storage battery group |
| US20150214755A1 (en) * | 2014-01-27 | 2015-07-30 | Fairchild Semiconductor Corporation | Control and current measurement function for battery charging, protection and fuel gauge coulomb counting |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201100922Y (en) * | 2006-09-20 | 2008-08-13 | 上海中科大研究发展中心有限责任公司 | Battery pack |
| EP2367258B1 (en) * | 2010-03-16 | 2018-06-27 | CTEK Sweden AB | A combined battery charger and battery equalizer |
| CN110151207B (en) * | 2014-04-17 | 2023-06-13 | 深圳迈瑞生物医疗电子股份有限公司 | Medical diagnosis high-frequency X-ray machine and power supply device |
-
2015
- 2015-12-04 CN CN201521004021.7U patent/CN205178589U/en not_active Expired - Fee Related
- 2015-12-04 CN CN201510884510.4A patent/CN105356549B/en not_active Expired - Fee Related
-
2016
- 2016-03-25 WO PCT/CN2016/077324 patent/WO2017092200A1/en active Application Filing
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017357A (en) * | 2008-04-22 | 2011-04-13 | Sk能源株式会社 | Two-stage charge equalization method and apparatus for series-connected battery string |
| CN101325271A (en) * | 2008-07-30 | 2008-12-17 | 赵建和 | Device for managing equalization of series battery |
| CN101752882A (en) * | 2008-11-28 | 2010-06-23 | 比亚迪股份有限公司 | Equalizer and equalizing charging method |
| CN101728852A (en) * | 2009-11-04 | 2010-06-09 | 秦永振 | Battery equilibrium charging and detecting and repairing device |
| CN101985187A (en) * | 2010-09-19 | 2011-03-16 | 深圳市华意隆实业发展有限公司 | Energy storage inverter type air plasma cutter for rescue emergencies |
| CN101969214A (en) * | 2010-10-09 | 2011-02-09 | 华为技术有限公司 | Battery pack and control method thereof |
| CN102005797A (en) * | 2010-12-08 | 2011-04-06 | 夏正奎 | Active self-management charging device of lithium-ion power battery |
| CN103187744A (en) * | 2011-12-30 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Power supply device |
| CN103208828A (en) * | 2012-01-17 | 2013-07-17 | 中国科学院广州能源研究所 | Management system for serial connected battery packs |
| CN102593897A (en) * | 2012-02-16 | 2012-07-18 | 荆门东光新能源科技有限公司 | Valley-filling type equalization module for power lithium battery pack |
| US20150214755A1 (en) * | 2014-01-27 | 2015-07-30 | Fairchild Semiconductor Corporation | Control and current measurement function for battery charging, protection and fuel gauge coulomb counting |
| CN203840036U (en) * | 2014-05-28 | 2014-09-17 | 耿直 | Boost-type storage battery group |
| 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092200A1 (en) * | 2015-10-28 | 2017-06-08 | 深圳市盈动力科技有限公司 | High-voltage lithium battery pack, and portable electric device comprising same |
| 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 |
| CN111725851A (en) * | 2019-03-20 | 2020-09-29 | 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 |
| 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 |
| CN110266068A (en) * | 2019-06-18 | 2019-09-20 | 季华实验室 | High-voltage battery control circuit, control method and storage medium |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017092200A1 (en) | 2017-06-08 |
| CN205178589U (en) | 2016-04-20 |
| CN105356549B (en) | 2018-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205178589U (en) | High pressure lithium cell package and portable consumer that wraps including this high pressure lithium cell | |
| CN108275017A (en) | Active equalization system and control method for power battery pack | |
| CN104967195B (en) | A kind of charging system for electric automobile of intelligent frequency-conversion control | |
| CN102856942A (en) | Charge-discharge omni-directional equalization managing device of lithium ion battery pack | |
| CN107154665A (en) | A kind of discharge and recharge combiner and electric power system | |
| CN102664452A (en) | Server cabinet and data center with same | |
| CN106712520A (en) | Portable lithium battery pack-based inverter arc welding system of electric welding machine | |
| CN202374022U (en) | Charge and discharge control system | |
| CN207021748U (en) | No-voltage acts the battery charger filled | |
| CN202712961U (en) | Server cabinet and data center with same | |
| CN107863818A (en) | A kind of uninterrupted multi-channel DC output switch power source of intelligent integral | |
| CN103855776A (en) | Equalization charging system applied to automobile power battery | |
| CN206313666U (en) | A kind of inverter arc welding system of the electric welding machine based on portable lithium battery pack | |
| CN202524148U (en) | Intelligent battery charger | |
| CN104080224A (en) | Power supply circuit and lamp | |
| CN204304500U (en) | A kind of two-way exports charger | |
| CN203813475U (en) | Equalization charging system applied to automobile power battery | |
| CN203942299U (en) | A kind of series-connected cell plate charging device | |
| CN207021719U (en) | One kind charging earphone | |
| CN207021734U (en) | A kind of discharge and recharge combiner and electric power system | |
| CN106253385A (en) | A kind of battery charger | |
| CN205863993U (en) | A kind of high-power portable electric tool lithium battery bag | |
| CN205610330U (en) | Intelligent fire control emergency power source | |
| CN204989386U (en) | Multichannel power supply system's detection circuitry | |
| CN108418299A (en) | A kind of lithium ion battery uninterruptible power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
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. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 Termination date: 20181204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |