CN207447573U - A kind of lithium battery inverter welder circuit - Google Patents
A kind of lithium battery inverter welder circuit Download PDFInfo
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- CN207447573U CN207447573U CN201721582904.5U CN201721582904U CN207447573U CN 207447573 U CN207447573 U CN 207447573U CN 201721582904 U CN201721582904 U CN 201721582904U CN 207447573 U CN207447573 U CN 207447573U
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Abstract
The utility model provides a kind of lithium battery inverter welder circuit, belongs to electric welding machine circuit technical field.It solves the problems, such as that existing welding machine carries, carries inconvenience.This lithium battery inverter welder circuit,Including lithium battery group B1,Voltage filtering circuit,Chopper circuit,Current filtering circuit,Control circuit,Selecting switch S1 and output terminal,Lithium battery group B1 is connected with voltage filtering circuit,For the output voltage of lithium battery group B1 to be adjusted to the weldingvoltage needed for electric welding machine welding,Inductance L1 one end is connected with the anode of lithium battery group B1 in chopper circuit,The other end is divided into two-way output,Output is connected with the anode of fast recovery diode D1 all the way,Another way output is connected with IGBT pipe Q1 collector C poles,IGBT pipes Q1 emitter Es pole is connected with the cathode of lithium battery group B1,Base stage B poles are connected by driving circuit with Voltage Feedback and control circuit,Control circuit is connected to control charging and the welded condition of electric welding machine with lithium battery group B1 by selecting switch S1.The utility model has the advantages that without external AC power good portability.
Description
Technical field
The utility model belongs to electric welding machine circuit technical field, is related to a kind of inverter type welder, more particularly to a kind of lithium battery
Inverter welder circuit.
Background technology
Inverter type welder is the high-temperature electric arc generated using welding machine output positive and negative polarities in instantaneous short circuit come consumable electrode
On solder and materials to be welded, reach make they combine equipment.Two kinds can be divided by out-put supply species electric welding machine, Yi Zhongshi
A.C. welder；One kind is dc welding machine.Whether A.C. welder or dc welding machine when in use, are required for leading to
Mains-supplied is crossed, therefore the use environment of electric welding machine must provide the AC power of certain capacity.And it can not be accessed for some
Alternating current or city's capacitance are smaller, the smaller welding scene of welding capacity, if field emergency repairs, when power failure, then can not
Weld job is completed, just needs a kind of portable electric welding machine being battery powered at this time.It is usual for this welding situation
Way there are two types of：First, using generator and electric welding machine cooperating, powered, reached for electric welding machine by electrical power generators
Into the purpose of weld job.But this mode is needed using generator, it is complicated there are equipment, it is necessary to often safeguard, power generation
Machine starts the problems such as trouble, noise are big, it is necessary to using bavin Water Oil Or Gas, and use cost is high and power generation process can generate pollution.
2nd, electrical storage device is installed additional on welding machine, although this mode can solve the above problems, its circuitry is complicated, cost
It is higher, waste is serious, and equipment is cumbersome and not easy to carry around.Above common two kinds of ways, not only expend a large amount of manpower and materials,
And carry, carry it is extremely inconvenient, the disaster relief, repair, speedily carry out rescue work, the emergent place such as first aid will the delay time at stop, cause life wealth
Production loss.
The content of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, is provided a kind of without external exchange
Power supply has reached the lithium battery inverter welder circuit of portability requirements.
The purpose of this utility model can be realized by following technical proposal：A kind of lithium battery inverter welder circuit, including
Lithium battery group B1, voltage filtering circuit, chopper circuit, current filtering circuit, control circuit, selecting switch S1 and output terminal,
It is characterized in that, the lithium battery group B1 is connected with voltage filtering circuit, for the output voltage of lithium battery group B1 to be adjusted
Electric welding machine welds required weldingvoltage, and inductance L1 one end is connected with the anode of lithium battery group B1 in the chopper circuit, separately
One end is divided into two-way output, and output all the way is connected with the anode of fast recovery diode D1, another way output and IGBT pipe Q1 collection
Electrode C poles connect, and IGBT pipes Q1 emitter Es pole is connected with the cathode of lithium battery group B1, and base stage B poles pass through driving circuit and voltage
Feedback and control circuit connection, the control circuit are connected to control electric welding machine with lithium battery group B1 by selecting switch S1
Charging and welded condition.
In a kind of above-mentioned lithium battery inverter welder circuit, be connected in the control circuit PWM control and
Feedback circuit, the feedback circuit include Voltage Feedback and current feedback.
Voltage Feedback, current feedback and control circuit are obtained by carrying out voltage sample to the output of voltage filtering circuit
Sampled voltage, and a pwm signal is exported according to the sampled voltage, pwm signal is after IGBT pipe Q1 driving circuits, IGBT
Pipe Q1 performs conducting and blocking action by the frequency and pulsewidth of PWM, and when IGBT pipes Q1 is turned on, energy storage is in inductance；
When IGBT pipes Q1 ends, the energy release output in inductance.
In a kind of above-mentioned lithium battery inverter welder circuit, given circuit is connected in the control circuit.
In a kind of above-mentioned lithium battery inverter welder circuit, protection circuit is connected in the control circuit.
In a kind of above-mentioned lithium battery inverter welder circuit, it is provided between the cathode and current feedback of the output terminal
Current divider, the specification of the current divider is 180A/75MV.
Compared with prior art, this lithium battery inverter welder circuit has the lithium electricity that weld job is carried out in no electricity
Pond energy storage chopped-mode welding power supply, by carrying out voltage filter to lithium battery group, using the copped wave electricity by electronic circuit control
The output of the electric current, voltage needed for welding is realized on road, to solve the circuit complexity present in current electric welding machine installation accumulator,
Cost is higher, waste is serious and it is not readily portable the problem of.
Description of the drawings
Fig. 1 is the circuit diagram of this lithium battery inverter welder circuit.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, this lithium battery inverter welder circuit, including lithium battery group B1, voltage filtering circuit, chopper circuit,
Current filtering circuit, control circuit, selecting switch S1 and output terminal, lithium battery group B1 are connected with voltage filtering circuit, for inciting somebody to action
The output voltage of lithium battery group B1 adjusts the weldingvoltage needed for electric welding machine welding, inductance L1 one end and lithium electricity in chopper circuit
The anode connection of pond group B1, the other end are divided into two-way output, and output all the way is connected with the anode of fast recovery diode D1, another
Road output is connected with IGBT pipe Q1 collector C poles, and IGBT pipes Q1 emitter Es pole is connected with the cathode of lithium battery group B1, base stage B poles
Be connected by driving circuit with Voltage Feedback and control circuit, control circuit be connected by selecting switch S1 with lithium battery group B1 with
Control charging and the welded condition of electric welding machine.
PWM controls and feedback circuit are wherein connected in control circuit, the feedback circuit includes Voltage Feedback
And current feedback, given circuit and protection circuit are connected in control circuit.
Current divider is provided between the cathode and current feedback of output terminal, the specification of the current divider is 180A/75MV.
During weld job, selecting switch S1 is thrown in welding position, and given circuit has Setting signal voltage at this time so that by mistake
Poor comparison point has negative signal voltage, which is amplified by the error of amplifier, and integrated circuit control terminal is made to become high voltage,
PWM maximum widths export, and welding current is set up rapidly, and also acquisition is sent to current feedback signal voltage immediately, when welding is given
Determine signal voltage and weld the welding electric current output that welding-cutting machine when feedback signal voltage reaches dynamic balancing remains stable.
When charging for lithium battery group, selecting switch S1 is thrown in charge position, and socket is accessed power grid, and network voltage is just
Master control circuit board charging circuit input terminal is sent to, this Current Voltage passes through rectifier diode industrial frequency rectifying, capacitor filtering
Become more stable DC voltage afterwards.It is managed by integrated circuit and MOSFET, isolated buck transformer, optocoupler integrated package, it is accurate
For the current mode single-ended reverse exciting regulated power supply of the compositions such as integrated package of pressure-stabilizing, fast-recovery commutation diode by inversion, isolated buck is whole
Stream, socket is output to after voltage stabilizing, is charged to lithium battery group.
Charging circuit prevents that battery pack from overshooting or overdischarge damages using intelligentized control method.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (4)
1. a kind of lithium battery inverter welder circuit, including lithium battery group B1, voltage filtering circuit, chopper circuit, current filtering electricity
Road, control circuit, selecting switch S1 and output terminal, which is characterized in that the lithium battery group B1 is connected with voltage filtering circuit,
For the output voltage of lithium battery group B1 to be adjusted to the weldingvoltage needed for electric welding machine welding, inductance in the chopper circuit
L1 one end is connected with the anode of lithium battery group B1, and the other end is divided into two-way output, and output is with fast recovery diode D1's all the way
Anode connects, and another way output is connected with IGBT pipe Q1 collector C poles, and IGBT pipes Q1 emitter Es pole is negative with lithium battery group B1's
Pole connects, and base stage B poles are connected by driving circuit with Voltage Feedback and control circuit, and the control circuit passes through selecting switch
S1 is connected to control charging and the welded condition of electric welding machine with lithium battery group B1.
2. a kind of lithium battery inverter welder circuit according to claim 1, which is characterized in that divide in the control circuit
PWM controls and feedback circuit are not connected with, and the feedback circuit includes Voltage Feedback and current feedback.
A kind of 3. lithium battery inverter welder circuit according to claim 1 or 2, which is characterized in that the control circuit
On be connected with given circuit and protection circuit.
A kind of 4. lithium battery inverter welder circuit according to claim 1, which is characterized in that the cathode of the output terminal
Current divider is provided between current feedback, the specification of the current divider is 180A/75MV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582904.5U CN207447573U (en) | 2017-11-23 | 2017-11-23 | A kind of lithium battery inverter welder circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582904.5U CN207447573U (en) | 2017-11-23 | 2017-11-23 | A kind of lithium battery inverter welder circuit |
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| Publication Number | Publication Date |
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| CN207447573U true CN207447573U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721582904.5U Active CN207447573U (en) | 2017-11-23 | 2017-11-23 | A kind of lithium battery inverter welder circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738022A (en) * | 2017-11-23 | 2018-02-27 | 浙江颐顿机电有限公司 | A kind of lithium battery inverter welder circuit |
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2017
- 2017-11-23 CN CN201721582904.5U patent/CN207447573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738022A (en) * | 2017-11-23 | 2018-02-27 | 浙江颐顿机电有限公司 | A kind of lithium battery inverter welder circuit |
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