CN109604774A - A kind of electric welding machine with charging output interface - Google Patents
A kind of electric welding machine with charging output interface Download PDFInfo
- Publication number
- CN109604774A CN109604774A CN201910018201.7A CN201910018201A CN109604774A CN 109604774 A CN109604774 A CN 109604774A CN 201910018201 A CN201910018201 A CN 201910018201A CN 109604774 A CN109604774 A CN 109604774A
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- Prior art keywords
- charging
- welding machine
- electric welding
- circuit
- output interface
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- 238000003466 welding Methods 0.000 title claims abstract description 65
- 238000004804 winding Methods 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 8
- 230000005669 field effect Effects 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012938 design process Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
-
- H02J7/027—
-
- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J2007/10—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of electric welding machines with charging output interface, including main power circuit, transformer, inverter welding machine control circuit, charhing unit and charging output interface, wherein, the main power circuit is connected with input is exchanged, and is converted to high frequency ac signal for that will exchange to input and is output to primary winding；The transformer is at least provided as first secondary windings in electric welding machine circuit and the second subprime winding as charge circuit；The inverter welding machine control circuit is connected with first secondary windings, for exporting electric welding signal；The charhing unit is connected with the second subprime winding, for exporting charging signals by the charging output interface.Compared with prior art, the present invention only increases the cost of about former charger a quarter, realizes electric welding and charge function when not changing the volume of existing electric welding machine.
Description
Technical field
The present invention relates to inversion welding machine and battery charging circuit more particularly to a kind of electricity with charging output interface
Welding machine.
Background technique
In civilian electric welding machine user group, the demand using charger is generally also existed simultaneously.For example, user uses electric welding
Machine welding of automotive, motorcycle while the household appliances such as fence and facility, generally will use dedicated charger to automobile, rub
The equipment that motorcycle etc. is furnished with battery, so must have electric welding machine in the tool of user and two kinds of charger individually set
It is standby, the expense of equipment purchase and the space of place apparatus are increased to a certain extent.Currently, the civilian arc-welding on Eastern Europe Market
The sales volume of machine is about 80 Wan Tainian, and have about 80% user and meanwhile buy charger, therefore, be badly in need of designing a integrated electric welding
The blank of Vehicles Collected from Market is filled up in the utilization for meeting two kinds of demands simultaneously with the electric welding machine of charge function, satisfaction at least hundreds of thousands
The demand of potential customers group；The electric welding machine can reduce the expense of user equipment purchase and the space of placement, while can also be with
Reduce the material loss of entire charger industry, energy saving and space.
In the prior art, general civilian manual arc welding machine output constant current DC power supply, output current scope be 50A extremely
200A, output power is in 1KW between 5KW；And Civil battery charger exports electric current using constant current and the DC power supply of constant pressure
Range 1A to 20A, output power is in 5W between 400W；That is the minimum output power of electric welding machine is far longer than charger
Peak power output, in addition the difference of control mode, prevent two kinds of circuits are from being compatible with.If two kinds of circuits placed simultaneously
In same casing, circuit is individually separated, also can satisfy the demand of two kinds of functions, but machine volume can be made to increase, and at
This is separately produced relative to the machine of two independent functions does not change too much.
Therefore in view of the drawbacks of the prior art, it is really necessary to propose a kind of technical solution to solve skill of the existing technology
Art problem.
Summary of the invention
In view of this, realizing the electric welding with the output interface that charges in existing product volume it is necessory to provide a kind of
Machine is greatly saved cost and space.The present invention is realized using low pressure wave chopping technology and is charged on the basis of existing electric welding machine
The power supply of device exports, and input power is taken from the main transformer of electric welding machine, can be changed according to the requirement of charging voltage in master
Number of winding turns on transformer obtains suitable charge power supply output, so as to not change the volume of existing electric welding machine, only increases
The cost for adding about former charger a quarter, realizes electric welding and charge function.
In order to solve technical problem of the existing technology, technical scheme is as follows:
It is a kind of with charging output interface electric welding machine, including main power circuit, transformer, inverter welding machine control circuit,
Charhing unit and charging output interface, wherein
The main power circuit is connected with input is exchanged, and is converted to high frequency ac signal for that will exchange to input and is output to
Primary winding；
The transformer is at least provided as first secondary windings in electric welding machine circuit and as the second of charge circuit
Grade winding；
The inverter welding machine control circuit is connected with first secondary windings, for exporting electric welding signal；
The charhing unit is connected with the second subprime winding, for passing through charging output interface output charging
Signal.
As the scheme of further improvement, the charhing unit includes at least current rectifying and wave filtering circuit and chopper circuit, wherein institute
Current rectifying and wave filtering circuit is stated for high frequency ac signal to be converted to DC voltage；
The chopper circuit is connected with the current rectifying and wave filtering circuit, for carrying out copped wave to DC voltage and exporting charging
Voltage.
As be further improved scheme, the charhing unit further includes charging control circuit, the charging control circuit with
The chopper circuit is connected, for control charging voltage to be arranged according to circuit parameter.
As be further improved scheme, the charhing unit further includes charging indication, the charging indication with
The charging control circuit is connected, and is used to indicate charhing unit working condition.
As be further improved scheme, the charhing unit further includes charge protector, the charge protector with
The chopper circuit is connected, for preventing charhing unit from damaging under operation irregularity situation.
As the scheme of further improvement, the current rectifying and wave filtering circuit carries out full-bridge rectification using Schottky diode.
As the scheme of further improvement, the chopper circuit is realized using pwm chip and metal-oxide-semiconductor.
As the scheme of further improvement, the pwm chip controls chip using TL494
As the scheme of further improvement, the charging control circuit is realized using comparator.
As the scheme of further improvement, the charge protector includes at least field-effect tube Q14, triode Q9, resistance
R23, resistance R49 and voltage-stabiliser tube D14.
Compared with prior art, the present invention increases winding as input electricity by the main transformer in original electric welding machine
Source, while realizing that the power supply of charger exports using low pressure wave chopping technology, so as to not change the volume of existing electric welding machine, only
The cost for increasing about former charger a quarter, realizes electric welding and charge function.
Detailed description of the invention
Fig. 1 is the functional block diagram for the electric welding machine that the present invention has charging output interface.
Fig. 2 is the functional block diagram of charhing unit in the present invention.
Fig. 3 is the circuit diagram of the embodiment of the present invention.
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned attached drawing.
Specific embodiment
Technical solution provided by the invention is described further below with reference to attached drawing.
It is an object of the invention to integration charger function on the basis of existing electric welding machine circuit, specific inventive concept is
Inversion welding machine main transformer (not changing any electric welding machine circuit) is connected by secondary rolling thread, so that machine realizes the same of welding function
When have the function of DC charging.The input power of charging circuit is centainly enclosed using high-temperature electric sub-line in electric welding machine main transformer Shangrao
Obtained high-frequency ac power is carried out full-bridge rectification using Schottky diode, then is filtered by electrolytic capacitor by several windings
Stable DC source is obtained, is then combined into chopper circuit using pwm chip, field-effect tube and DC inductance, simultaneously
It, can on the control panel of this equipment according to the variation of output voltage and electric current adjusting pulse width come constant output current voltage
The voltage and current of charging is arranged, while adjustable electric welding machine exports electric current.Practical charging voltage of the invention be 6V and
12V, electric current maximum 5A；Electric welding machine exports electric current 160A；The design for parameter that but the invention is not restricted to this exports.
The functional block diagram of the electric welding machine for the present invention with charging output interface shown in Figure 1, including main power circuit,
Transformer, inverter welding machine control circuit, charhing unit and charging output interface, wherein
The main power circuit is connected with input is exchanged, and is converted to high frequency ac signal for that will exchange to input and is output to
Primary winding；
The transformer is at least provided as first secondary windings in electric welding machine circuit and as the second of charge circuit
Grade winding；
The inverter welding machine control circuit is connected with first secondary windings, for exporting electric welding signal；
The charhing unit is connected with the second subprime winding, for passing through charging output interface output charging
Signal.
In above-mentioned technical proposal, winding is increased as input power by the main transformer in original electric welding machine, is adopted simultaneously
The power supply output of charger is realized with low pressure wave chopping technology, so as to not change the volume of existing electric welding machine, is only increased about former
The cost of charger a quarter realizes electric welding and charge function.
Referring to fig. 2, it is shown the functional block diagram of charhing unit in the present invention, the charhing unit includes at least rectifying and wave-filtering
Circuit, chopper circuit, charging control circuit, charging indication and charge protector, wherein the current rectifying and wave filtering circuit is used
In high frequency ac signal is converted to DC voltage；
Chopper circuit is connected with the current rectifying and wave filtering circuit, for carrying out copped wave to DC voltage and exporting charging electricity
Pressure.
Charging control circuit is connected with the chopper circuit, for control charging voltage to be arranged according to circuit parameter.
Charging indication is connected with the charging control circuit, is used to indicate charhing unit working condition.
Charge protector is connected with the chopper circuit, for preventing charhing unit from damaging under operation irregularity situation
It is bad.
Further, current rectifying and wave filtering circuit carries out full-bridge rectification using Schottky diode, so as to realize in high frequency
Rectification is realized under signal.
Further, chopper circuit is realized using pwm chip and metal-oxide-semiconductor, due to using integrated control chip, thus
It only needs a small amount of component to be just able to achieve charge function, greatly reduces product size.Preferably, pwm chip uses
TL494 controls chip
Further, the charging control circuit is realized using comparator.
It is described in detail by the following examples and technical solution of the present invention is realized using specific circuit connection structure, referring to Fig. 3, institute
It is shown as the circuit diagram of the embodiment of the present invention, wherein in main power circuit, first pass through B1 rectifier bridge and C1 electrolytic capacitor obtains
Slab bridge inversion is carried out to a stable DC source, then by Q1, Q2, C2, C3, the high frequency square wave that inverter circuit is obtained is handed over
Galvanic electricity is input to main transformer T1, and wherein the first armature winding of transformer is using the winding of two 5 circles as the defeated of electric welding machine
Out, input power of second armature winding using the winding of 2 circles as charhing unit.
The working principle of charhing unit is mainly introduced below:
The second subprime winding (2 circle) of the output of transformer (must use two pole of Schottky by D9, D10, D11, D12
Pipe) full-bridge rectification is carried out, then filter to obtain a low-voltage dc power supply by C17 electrolytic capacitor, supply voltage is inputted in equipment
It is Vcc=23.5V when voltage is AC220V.Pwm chip U1 (TL494) exports fixed frequency in 8 feet and 11 feet
Impulse waveform, frequency is occupied jointly by R8 and C12 and is determined, generally in 20KHz or so.When impulse waveform is low level,
D3 will drag down voltage-stabiliser tube D8 anode voltage, so that the grid voltage of Q13 is fixed 15V, field-effect tube deletes source voltage at this time
For Vgs=10-Vcc=-8.5V, because Q13 is P-channel field-effect transistor (PEFT) pipe, Q13 is connected, and Vcc gives electrolysis electricity by Q13, L1
Hold C18 charging, obtains charging voltage Vf.
Vf is by resistance R47 and R14, and capacitor C11 samples to obtain 1 foot that voltage feedback signal is input to U1, when Vf is greater than
When given value, 8/11 foot of U1 will export high potential, and current potential Vcc, Q3 is connected at this time, and Q13 grid voltage is (Vcc+15) V,
Gate source voltage Vgs=15V, Q13 is closed, and since the afterflow of inductance L1 acts on, will be continued to give C18 charging by D13, and be limited simultaneously
The drain voltage of Q13 is not less than the voltage of power ground, and field pipe is protected not damaged by high pressure；, whereas if Vf voltage is lower than setting
8/11 foot of value, U1 exports low potential, so that Q13 conduction charges to C18, thus constant output voltage.It is filled to battery
When electric, charging current passes through resistance R56, generates the voltage directly proportional to size of current, this voltage enters the 16 of U1 by R18
Foot, when exporting electric current greater than setting electric current value, 8/11 foot of U1 exports high level, and Q13 is closed, and the charging time is reduced, when defeated
When electric current is less than setting value out, 8/11 foot of U1 exports low level, and Q13 conducting continues to charge, it is hereby achieved that a stabilization
Charge power supply.
Charhing unit specially increases charge protector in the design process, prevents because user connects the positive and negative of charging cable
Anti- or short circuit causes the damage of circuit, this partial circuit is mainly by the components group such as Q14, Q9, R23, R49, D14.Work as charging
When line connection is normal, Vout is equal to cell voltage, is divided by resistance R23 and R49, and then driving triode Q9 is connected, resistance
The one end R42 ground connection, field-effect tube Q14 grid and source electrode generate negative pressure at this time, and spoke value is equal to voltage-stabiliser tube D14 both end voltage, Q14
Conducting, circuit are charged normal to battery；When the output line that charges is reversed to be perhaps shorted, the potential of Vout will be less than or be equal to electricity
Source, triode Q9 cannot be connected at this time, and the grid and source potential of field-effect tube Q14 is equal, and Q14 cannot be connected, charging electricity
Road does not work, and effectively prevents the component damage in circuit.
Charging control circuit working principle is by Design of Amplifiers into comparator, when detecting cell voltage Vout <
When 7.6V, 1 foot of amplifier U3 exports low potential, and 8 feet of U3 export high potential, triode Q7 conducting, light emitting diode at this time
LED6 is lighted, and display rechargeable battery is 6V；When detecting cell voltage Vout > 7.6V, 1 foot of amplifier U3 exports high potential,
Triode Q6 is connected at this time, and Light-emitting diode LED 5 is lighted, and display rechargeable battery is 12V, while passing through D6, R48 setting charging
Voltage is given, makes charging voltage 12V.The voltage value directly proportional to output electric current detected on resistance R56 is input to
Operational amplifier U3B amplifies 21 times, and when the 7 foot voltages of U3 are greater than the set value, 14 feet of U3 export low spot position, and at this time three
Pole pipe Q11 is not turned on, and Q12 conducting, LED2, which is lighted, is shown as charged state；As charging progresses, cell voltage gradually rises,
Charging current drops to certain value, and when so that the 7 foot voltage signals of U7 being less than setting value, 14 feet of U3 export high potential, and Q8 is led
Logical, LED7 is lighted, and display battery is in full state.
Using foregoing circuit figure, the present invention realizes electric welding machine and charger in the case where increasing seldom cost
Function, and the volume of machine will not change, and meet demand of the client to the multiple functions of equipment.Between attached drawing 3
The connection relationship and its corresponding device parameters of the specific component of the circuit are illustrated in detail, are not repeated herein.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of electric welding machine with charging output interface, which is characterized in that including main power circuit, transformer, inverter type welder
Control circuit, charhing unit and charging output interface, wherein
The main power circuit is connected with input is exchanged, and is converted to high frequency ac signal for that will exchange to input and is output to transformation
Device armature winding；
The transformer be at least provided as electric welding machine circuit the first secondary windings and as charge circuit second subprime around
Group；
The inverter welding machine control circuit is connected with first secondary windings, for exporting electric welding signal；
The charhing unit is connected with the second subprime winding, for passing through charging output interface output charging letter
Number.
2. the electric welding machine with charging output interface according to claim 1, which is characterized in that the charhing unit is at least
Including current rectifying and wave filtering circuit and chopper circuit, wherein the current rectifying and wave filtering circuit is used to high frequency ac signal being converted to direct current
Voltage；
The chopper circuit is connected with the current rectifying and wave filtering circuit, for carrying out copped wave to DC voltage and exporting charging electricity
Pressure.
3. the electric welding machine with charging output interface according to claim 2, which is characterized in that the charhing unit also wraps
Charging control circuit is included, the charging control circuit is connected with the chopper circuit, controls for being arranged according to circuit parameter
Charging voltage.
4. the electric welding machine with charging output interface according to claim 3, which is characterized in that the charhing unit also wraps
Charging indication is included, the charging indication is connected with the charging control circuit, is used to indicate charhing unit work
State.
5. the electric welding machine with charging output interface according to claim 2, which is characterized in that the charhing unit also wraps
Charge protector is included, the charge protector is connected with the chopper circuit, for preventing under operation irregularity situation
Charhing unit damage.
6. the electric welding machine with charging output interface according to claim 2, which is characterized in that the current rectifying and wave filtering circuit
Full-bridge rectification is carried out using Schottky diode.
7. the electric welding machine with charging output interface according to claim 2, which is characterized in that the chopper circuit uses
Pwm chip and metal-oxide-semiconductor are realized.
8. the electric welding machine with charging output interface according to claim 7, which is characterized in that the pwm chip
Chip is controlled using TL494.
9. the electric welding machine with charging output interface according to claim 3, which is characterized in that the charging control circuit
It is realized using comparator.
10. the electric welding machine with charging output interface according to claim 5, which is characterized in that the charge protection electricity
Road includes at least field-effect tube Q14, triode Q9, resistance R23, resistance R49 and voltage-stabiliser tube D14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018201.7A CN109604774A (en) | 2019-01-09 | 2019-01-09 | A kind of electric welding machine with charging output interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018201.7A CN109604774A (en) | 2019-01-09 | 2019-01-09 | A kind of electric welding machine with charging output interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109604774A true CN109604774A (en) | 2019-04-12 |
Family
ID=66018222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910018201.7A Pending CN109604774A (en) | 2019-01-09 | 2019-01-09 | A kind of electric welding machine with charging output interface |
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| Country | Link |
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| CN (1) | CN109604774A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448036A (en) * | 2022-01-17 | 2022-05-06 | 贵州大学 | resistance-MOSFET (metal oxide semiconductor field effect transistor) regulated and controlled welding power supply capacitor rapid charging method |
-
2019
- 2019-01-09 CN CN201910018201.7A patent/CN109604774A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448036A (en) * | 2022-01-17 | 2022-05-06 | 贵州大学 | resistance-MOSFET (metal oxide semiconductor field effect transistor) regulated and controlled welding power supply capacitor rapid charging method |
| CN114448036B (en) * | 2022-01-17 | 2022-08-23 | 贵州大学 | resistance-MOSFET (metal oxide semiconductor field effect transistor) regulated and controlled welding power supply capacitor rapid charging method |
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Address after: Wenling city Taizhou town dock root of 317500 cities in Zhejiang province are mechanical industry Applicant after: Zhejiang lawston Technology Co., Ltd Address before: Wenling city Taizhou town dock root of 317500 cities in Zhejiang province are mechanical industry Applicant before: ZHEJIANG LAOSHIDUN WELDING EQUIPMENT Co.,Ltd. |
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