CN107627009A - Welding machine arc stabilizer - Google Patents
Welding machine arc stabilizer Download PDFInfo
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- CN107627009A CN107627009A CN201610565583.1A CN201610565583A CN107627009A CN 107627009 A CN107627009 A CN 107627009A CN 201610565583 A CN201610565583 A CN 201610565583A CN 107627009 A CN107627009 A CN 107627009A
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Abstract
The present invention relates to a kind of welding machine arc stabilizer, including rectification module, inversion module, output reactance device, positive polarity times die block, negative polarity times die block and energy-storage module, the negative polarity times die block and the positive polarity times die block are used for the output voltage for raising the secondary coil of the welding machine, and the energy-storage module is used to store the positive polarity times die block and the energy of the negative polarity times die block provides energy with the work for the inversion module.Above-mentioned welding machine arc stabilizer, the output voltage of the secondary coil of welding machine is raised by positive polarity times die block and negative polarity times die block, and store energy to energy-storage module, to provide energy when exchanging and commutate for welding machine, the larger current of commutation of increase that need not be extra just being capable of arcing again, reach the purpose of stabilising arc, cost is low, efficiency high.
Description
Technical field
The present invention relates to welding machine control technology field, more particularly to a kind of welding machine arc stabilizer.
Background technology
Increasingly mature with inverse transformation electric arc welder power technology, the competition of welding machine profession is more and more fierce.In the market
The species of electric welding machine is also emerged in an endless stream, and use of the people to electric welding machine is also not necessarily limited to industrially, using also more and more general in family
Time, electric welding machine starts the direction that increasingly trend welding stabilization, beautiful appearance, reliable in quality, cost are low and developed.
Current interruption phenomenon when most domestic alternating-current argon arc welder commutates for solution exchange at present, the additional isolation of generally use
Transformer provides stabilising arc energy, this not only adds the cost of circuit, can also increase the size of welding machine.There is also using high pressure
High frequency assists the device of stabilising arc, and this make it that welding high-frequency noise substantially increases, and not only can cause damage to welder's hearing, and
The reliability of high pressure also butt welding machine in itself serves negative effect.
The content of the invention
Based on this, it is necessary to provide a kind of welding machine arc stabilizer, stabilising arc energy, cost are provided when exchanging and commutate for welding machine
It is low, efficiency high.
A kind of welding machine arc stabilizer, including：
Rectification module, the first input end of the rectification module are connected with the head tap of the secondary coil of welding machine, and this is whole
Second input of flow module is connected with the afterbody tap of the secondary coil of the welding machine, for by the secondary wire of the welding machine
The AC rectification of output is enclosed into direct current；
Inversion module, the first input end of the inversion module are connected with the first output end of the rectification module, and this is inverse
The second input for becoming module is connected with the second output end of the rectification module, for being exchange by the DC inverter
After electricity, the first output end as the welding machine；
Output reactance device, the first end of the output reactance device are connected with the centre tap of the secondary coil of the welding machine,
Second output end of second end of the output reactance device as the welding machine；
Also include：
Positive polarity times die block, the head tap of the input of the positive polarity times die block and the secondary coil of the welding machine
It is connected, the output voltage of the secondary coil for raising the welding machine；
Negative polarity times die block, the afterbody tap of the input of the negative polarity times die block and the secondary coil of the welding machine
It is connected, the output voltage of the secondary coil for raising the welding machine；
Energy-storage module, the first input end of the energy-storage module are connected with the output end of the positive polarity times die block, should
Second input of energy-storage module is connected with the output end of the negative polarity times die block, the 3rd input of the energy-storage module
It is connected with the centre tap of the secondary coil of the welding machine, the of the first output end of the energy-storage module and the rectification module
One output end is connected, and the second output end of the energy-storage module is connected with the second output end of the rectification module, for depositing
The energy for storing up the positive polarity times die block and the negative polarity times die block provides energy with the work for the inversion module
Amount.
Above-mentioned welding machine arc stabilizer, by positive polarity times die block and negative polarity times die block by the secondary coil of welding machine
Output voltage raises, and stores energy to energy-storage module, to provide energy when exchanging and commutate for welding machine, it is not necessary to extra
The larger current of commutation of increase just can arcing again, reach the purpose of stabilising arc, cost is low, efficiency high.
In one of the embodiments, in addition to the first stabilising arc switching tube and the second stabilising arc switching tube；
The first end of the first stabilising arc switching tube is connected with the first output end of the energy-storage module, and described first is steady
Second end of arc switching tube is connected with the first output end of the rectification module；
The first end of the second stabilising arc switching tube is connected with the second output end of the energy-storage module, and described second is steady
Second end of arc switching tube is connected with the second output end of the rectification module.
The welding machine arc stabilizer, by the control to the first stabilising arc switching tube and the second stabilising arc switching tube, it can cause
When welding machine non-alternating commutates, the energy of energy-storage module will not be exported to inversion module, be still so as to the output voltage of inversion module
Normal weldingvoltage, so as to ensure that welding current and arc voltage are stable, normal welding is realized, therefore energy-storage module only exists
Energy is just exported during welding machine exchange commutation, so as to further improve the efficiency of welding machine.
In one of the embodiments, the inversion module includes the first inverse switch pipe, the second inverse switch pipe, first
Diode and the second diode；
The first end of the first inverse switch pipe is connected with the positive input of first diode, and described first
First output end at the second end of inverse switch pipe, the reverse input end of first diode and the rectification module is connected
Connect；
The first end of the second inverse switch pipe is connected with the reverse input end of second diode, and described second
Second output end at the second end of inverse switch pipe, the positive input of second diode and the rectification module is connected
Connect；
The first end of the first inverse switch pipe is used as institute after being connected with the first end of the second inverse switch pipe
State the first output end of welding machine.
The welding machine arc stabilizer passes through to the first inverse switch pipe, the second inverse switch pipe, the first stabilising arc switching tube and
The control of two stabilising arc switching tubes, welding machine output reactance device can be fed back to energy storage mould in peak voltage caused by welding machine commutation
Block, as a part for stabilising arc energy, reverse spike voltage is both effectively absorbed, improves the utilization rate of the energy again；And by
In no powerful resistance and electric capacity, it is possible to reduce the noise of welding arc, improve the utilization rate of effective workpiece in welding machine, drop
Itself thermal losses of low welding machine, so as to reduce the size of welding machine.
In one of the embodiments, in addition to the 3rd diode and the 4th diode；
The reverse input end of 3rd diode is connected with the first output end of the energy-storage module, and the described 3rd 2
The positive input of pole pipe is connected with the first output end of the rectification module；
The positive input of 4th diode is connected with the second output end of the energy-storage module, and the described 4th 2
The reverse input end of pole pipe is connected with the second output end of the rectification module.
In one of the embodiments, in addition to the first inductance, the second inductance, the 5th diode and the 6th diode；
The first end of first inductance, the reverse input end of the 5th diode and the first stabilising arc switching tube
The second end be connected, the second end of first inductance is connected with the first output end of the rectification module；
The first end of second inductance, the positive input of the 6th diode and the second stabilising arc switching tube
The second end be connected, the second end of second inductance is connected with the second output end of the rectification module；
Time of the positive input of 5th diode, the reverse input end of the 6th diode and the welding machine
The centre tap of level coil is connected.
The welding machine arc stabilizer introduces the first inductance and the second inductance as stabilising arc current buffering inductance, can be slowly by storage
The voltage of energy module is added to inversion module, in addition, when the first stabilising arc switching tube and the second stabilising arc switching tube turn off, should
Energy on first inductance and the second inductance can be discharged by the 5th diode and the 6th diode, so as to which the first stabilising arc switchs
Peak voltage will not be produced on pipe and the second stabilising arc switching tube.
The energy-storage module includes the first electric capacity and the second electric capacity, first end and the positive polarity of first electric capacity
The output end of times die block is connected, the second end of first electric capacity, the first end of second electric capacity and the welding machine
The centre tap of secondary coil be connected, the second end of second electric capacity and the output end phase of the negative polarity times die block
Connection.
In one of the embodiments, the positive polarity times die block and the negative polarity times die block are by electric capacity
The voltage doubling rectifing circuit that element and diode element are formed.
In one of the embodiments, in addition to the 3rd electric capacity and high-frequency arc strike welding transformer, the high-frequency arc strike weld
The primary for connecing transformer connects striking electric current, the first end of the secondary coil of the high-frequency arc strike welding transformer, the output electricity
The first end of second end of anti-device and the 3rd electric capacity is connected, the secondary coil of the high-frequency arc strike welding transformer
Second output end of second end as the welding machine, the second end of the 3rd electric capacity are connected with the output end of the inversion module
Connect, the first output end as the welding machine.
In one of the embodiments, the first inverse switch pipe, the second inverse switch pipe, first stabilising arc
Switching tube and the second stabilising arc switching tube are HF switch.
In one of the embodiments, the rectification module is full-bridge rectification module.
Brief description of the drawings
Fig. 1 is the schematic diagram of the welding machine arc stabilizer in an embodiment；
Fig. 2 is the circuit diagram of the welding machine arc stabilizer in an embodiment；
Fig. 3 is the oscillogram of each switching tube in an embodiment.
Wherein,
100 rectification modules
200 inversion modules
300 output reactance devices
400 positive polarity times die blocks
500 negative polarity times die blocks
600 energy-storage modules
700 welding arcs
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
Before describing in detail according to an embodiment of the invention, it should be noted that, embodiment essentially consists in steady with welding machine
The combination of the related system component of arc device.Therefore, said system component is in the accompanying drawings by ordinary symbol appropriate
Positional representation out, and merely illustrates the details relevant with understanding embodiments of the invention, in order to avoid because for having benefited from this
Those obvious details have obscured the disclosure for those of ordinary skill in the art of invention.
Herein, such as left and right, upper and lower, front and rear, first and second etc relational terms are used merely to area
Divide an entity or action and another entity or action, and not necessarily require or imply and be between this entity or action any
Actual this relation or order.Term " comprising ", "comprising" or any other variant are intended to including for nonexcludability, by
This make it that including the process of a series of elements, method, article or equipment not only includes these key elements, but also comprising not bright
The other element really listed, it is either this article or the intrinsic key element of equipment.
Refer to shown in Fig. 1, Fig. 1 is the schematic diagram of the welding machine arc stabilizer in an embodiment.In this embodiment, the weldering
Machine arc stabilizer includes secondary inverter circuit and stabilising arc absorbing circuit, and the secondary inverter circuit includes rectification module 100, inversion
Module 200, output reactance device 300, the stabilising arc absorbing circuit include positive polarity times die block 400, negative polarity times die block 500 with
And energy-storage module 600.Wherein the first input end of rectification module 100 is connected with the secondary coil N of welding machine head tap, whole
Second input of flow module 100 is connected with the secondary coil N of welding machine afterbody tap, the first input of inversion module 200
End is connected with the first output end of rectification module 100, the second input of inversion module 200 and the second of rectification module 100
Output end is connected, and the first end of output reactance device 300 is connected with the secondary coil N of welding machine centre tap, output electricity
Second output end of second end of anti-device 300 as welding machine；The input of positive polarity times die block 400 and the secondary coil of welding machine
N head tap is connected, and the input of negative polarity times die block 500 is connected with the secondary coil N of welding machine afterbody tap,
The first input end of energy-storage module 600 is connected with the output end of positive polarity times die block 400, and the second of energy-storage module 600 is defeated
Enter end with the output end of negative polarity times die block 500 to be connected, the 3rd input of energy-storage module 600 and the secondary coil of welding machine
N centre tap is connected, and the first output end of energy-storage module 600 is connected with the first output end of rectification module 100, energy storage
Second output end of module 600 is connected with the second output end of rectification module 100.
Rectification module 100 is used for the AC rectification that the secondary coil N of welding machine is exported into direct current.Inversion module 200
For being the first output end as welding machine after alternating current by DC inverter.Positive polarity times die block 400 and negative polarity multiplication of voltage
Module 500 is used to raise the secondary coil N of welding machine output voltage.Energy-storage module 600 is used to store positive polarity times die block
400 and the energy of negative polarity times die block 500 provide energy with the work for inversion module 200.
Above-mentioned welding machine arc stabilizer, by positive polarity times die block 400 and negative polarity times die block 500 by the secondary of welding machine
Coil N output voltage rise, and energy-storage module 600 is stored energy to, to provide energy when exchanging and commutate for welding machine,
The larger current of commutation of increase that need not be extra just can arcing again, reach the purpose of stabilising arc, cost is low, efficiency high.
In one of the embodiments, the welding machine arc stabilizer also includes the first stabilising arc switching tube K1Switched with the second stabilising arc
Pipe K2；First stabilising arc switching tube K1First end be connected with the first output end of energy-storage module 600, the first stabilising arc switching tube K1
The second end be connected with the first output end of rectification module 100；Second stabilising arc switching tube K2First end and energy-storage module 600
The second output end be connected, the second stabilising arc switching tube K2The second end be connected with the second output end of rectification module 100.
In the embodiment, by the first stabilising arc switching tube K1With the second stabilising arc switching tube K2Control, can cause in welding machine non-alternating
During commutation, i.e., in the stable burning of welding arc 700, the energy of energy-storage module 600 will not be exported to inversion module 200, so as to
The output voltage of inversion module 200 is still normal weldingvoltage, and then ensures that welding current and the voltage of welding arc 700 are steady
It is fixed, normal welding is realized, therefore energy-storage module 600 only just exports energy when welding machine is exchanged and commutated, so as to further
Improve the efficiency of welding machine in ground.Further, in one embodiment, the welding machine arc stabilizer can also include the 3rd diode D3
And the 4th diode D4；3rd diode D3Reverse input end be connected with the first output end of energy-storage module 600, the 3rd
Diode D3Positive input be connected with the first output end of rectification module 100；4th diode D4Positive input with
Second output end of energy-storage module 600 is connected, the 4th diode D4Reverse input end and rectification module 100 the second output
End is connected.
In one of the embodiments, inversion module 200 includes the first inverse switch pipe K3, the second inverse switch pipe K4,
One diode D1And the second diode D2；First inverse switch pipe K3First end and the first diode D1Positive input
It is connected, the first inverse switch pipe K3The second end, the first diode D1Reverse input end and rectification module 100 first
Output end is connected；Second inverse switch pipe K4First end and the second diode D2Reverse input end be connected, the second inversion
Switching tube K4The second end, the second diode D2Positive input and the second output end of rectification module 100 be connected；The
One inverse switch pipe K3First end and the second inverse switch pipe K4First end be connected after the first output end as welding machine.
In this embodiment, by the first inverse switch pipe K3, the second inverse switch pipe K4, the first stabilising arc switching tube K1It is steady with second
Arc switching tube K2Control, can by welding machine output reactance device 300 welding machine exchange commutation caused by peak voltage feed back to
Energy-storage module 600, as a part for stabilising arc energy, reverse spike voltage is both effectively absorbed, improves the profit of the energy again
With rate；And due to no powerful resistance and electric capacity, it is possible to reduce the noise of welding arc 700, improve effectively empty in welding machine
Between utilization rate, reduce welding machine itself thermal losses, so as to reduce the size of welding machine.
In this embodiment, refer to shown in Fig. 3, Fig. 3 is the oscillogram of each switching tube in an embodiment.In welding arc
During 700 stable burnings, the first stabilising arc switching tube K1With the second stabilising arc switching tube K2State is off, now energy storage mould
The energy of block 600 will not enter inversion module 200, therefore welding arc 700 can burn normal table, be changed in welding machine exchange
Forward, the first inverse switch pipe K3, the second inverse switch pipe K4Shut-off, as shown in fig.3, the turn-off time is t2, when turning off herein
Between t2Interior, due to the continuous action of the electric current of output reactance device 300, welding arc 700 will not extinguish moment, can pass through bridging
In the first inverse switch pipe K3On the 3rd diode D3, be connected across the first stabilising arc switching tube K1On the first diode D1, energy storage
Module 600, it is connected across the second inverse switch pipe K4On the 4th diode D4And it is connected across the second stabilising arc switching tube K2On
Two diode D2Energy-storage module 600 is stored energy to, the voltage at the both ends of energy-storage module 600 can be improved, so as to improve
Exchange after commutating, the reliability that next welding arc 700 is restriked.In one of the embodiments, turn-off time t2When it is considerable
To discharge the energy of output reactance device 300, and cause the first inverse switch pipe K3With the second inverse switch pipe K4Lasting electric current institute
The time of caused voltage is less than the first inverse switch pipe K3With the second inverse switch pipe K4Rated voltage time.
In one of the embodiments, refer to shown in Fig. 2, Fig. 2 is the circuit diagram of welding machine arc stabilizer in an embodiment.
The welding machine arc stabilizer also includes the first inductance L1, the second inductance L2, the 5th diode D5And the 6th diode D6；First electricity
Feel L1First end, the 5th diode D5Reverse input end and the first stabilising arc switching tube K1The second end be connected, first electricity
Feel L1The second end be connected with the first output end of rectification module 100；Second inductance L2First end, the 6th diode D6's
Positive input and the second stabilising arc switching tube K2The second end be connected, the second inductance L2The second end and rectification module 100
Second output end is connected；5th diode D5Positive input, the 6th diode D6Reverse input end and welding machine time
Level coil N centre tap is connected.In this embodiment, the first inductance L is introduced1With the second inductance L2Delay as stabilising arc electric current
Inductance is rushed, the voltage of energy-storage module 600 slowly can be added to inversion module 200, in addition, in the first stabilising arc switching tube K1With
Second stabilising arc switching tube K2When shut-off, first inductance L1With the second inductance L2On energy can pass through the 5th diode
D5With the 6th diode D6Release, so as to the first stabilising arc switching tube K1With the second stabilising arc switching tube K2On will not produce peak voltage.
In this embodiment, please continue to refer to shown in Fig. 3, when off between t2After end, welding machine exchange commutation and again
Arcing, it is assumed that before welding machine exchange commutation, the first inverse switch pipe K3Conducting, then after welding machine exchange commutation, the second inverse switch pipe K4
Conducting, while the second stabilising arc switching tube K2Conducting, the second stabilising arc switching tube K2ON time be t1, in ON time t1It is interior,
The energy of energy-storage module 600 passes through the second stabilising arc switching tube K2And pass through the second inductance L2Release energy to inversion module 200, it is real
The now effect of efficient restrike of arc, ON time t1Length be fixed as being enough effective restrike of arc.
It is then above-mentioned in addition, in this embodiment, when closed between t1Through later, the second stabilising arc switching tube K2Shut-off, the
Two inductance L2On energy pass through the 6th diode D6Release, therefore the second stabilising arc switching tube K2On will not produce peak voltage, can
By property height.
In one of the embodiments, energy-storage module 600 includes the first electric capacity C1And the second electric capacity C2, the first electric capacity C1
First end be connected with the output end of positive polarity times die block 400, the first electric capacity C1The second end, the second electric capacity C2First
The secondary coil N of end and welding machine centre tap is connected, the second electric capacity C2The second end and negative polarity times die block 500
Output end is connected.
In one of the embodiments, positive polarity times die block 400 and negative polarity times die block 500 are by electric capacity member
The voltage doubling rectifing circuit that part and diode element are formed, specifically may refer to shown in Fig. 2, but the voltage doubling rectifing circuit can be 2
Voltage doubling rectifing circuit, 3 voltage doubling rectifing circuits, 4 voltage doubling rectifing circuits etc..
In one of the embodiments, the main electrical circuit of welding machine is included, the main electrical circuit includes the 3rd electric capacity C3And height
Frequency striking arc welding transformer T2, between its medium-high frequency refers to 100kHz to 800kHz, high-frequency arc strike welding transformer T2Primary
Meet striking electric current, high-frequency arc strike welding transformer T2The first end of secondary coil, the second end of output reactance device 300 and
Three electric capacity C3First end be connected, high-frequency arc strike welding transformer T2Secondary coil the second end as the second defeated of welding machine
Go out end, the 3rd electric capacity C3The second end be connected with the output end of inversion module 200, as the first output end of welding machine, welding machine
The first output end and welding machine the second output end connecting welding electric arc 700.
In one of the embodiments, the first inverse switch pipe K3, the second inverse switch pipe K4, the first stabilising arc switching tube K1
And the second stabilising arc switching tube K2Can be HF switch, its medium-high frequency refers between 100kHz to 800kHz.Rectification module 100
It can be full-bridge rectification module 100.
In order that obtaining those skilled in the art clearly understands the technical program, with reference to Fig. 2 and Fig. 3 to this skill
The principle of art scheme illustrates：
During welding machine has output, positive polarity times die block 400 and negative polarity times die block 500 can provide surely
The high voltage of arc, wherein positive polarity times die block 400 provide positive polarity high pressure, and energy stores are in the first electric capacity C1, negative polarity times
Die block 500 provides negative polarity high pressure, and energy stores are in the second electric capacity C2。
In the stable combustion process of welding arc 700, the first stabilising arc switching tube K1With the second stabilising arc switching tube K2It is off
State, now the energy of energy-storage module 600 will not export to inversion module 200, therefore welding arc 700 being capable of normal table
Burning.
Before welding current exchange commutation, incorporated by reference to shown in Fig. 3 oscillogram, the first stabilising arc switching tube K1, the second stabilising arc
Switching tube K2, the first inverse switch pipe K3And the second inverse switch pipe K4It is in off state, turn-off time t2, at this
Turn-off time t2Interior, due to the continuous action of the electric current of output reactance device 300, welding arc 700 will not extinguish moment, and it can be with
By being connected across the first inverse switch pipe K3On the 3rd diode D3, be connected across the first stabilising arc switching tube K1On the one or two pole
Pipe D1, energy-storage module 600, be connected across the second inverse switch pipe K4On the 4th diode D4And it is connected across the second stabilising arc switch
Pipe K2On the second diode D2Store energy to energy-storage module 600.So as to will caused by output reactance device 300 reversely
Peak voltage feeds back the part as stabilising arc energy.
T between when off2After end, welding machine exchange commutation and again arcing, it is assumed that now the second inverse switch pipe K4Lead
Lead to, then corresponding second stabilising arc switching tube K2It is also switched on, the second stabilising arc switching tube K2ON time be t1, now the second electric capacity
C2The energy of upper storage is discharged to welding arc 700, and its specific loop is energy from the second electric capacity C2It is sequentially output to output reactance
Device 300, the second inverse switch pipe K4, the second inductance L2And the second stabilising arc switching tube K2, return again to the second electric capacity C2, so as to
The energy of welding arc 700 can be improved, keeps welding arc 700 to stablize constant.
In ON time t1After end, the second stabilising arc switching tube K2Shut-off, the second inductance L2On energy pass through the six or two pole
Pipe D6Release, its specific loop is, energy is from the second inductance L2Export to the second diode D2, output reactance device 300, second it is inverse
Become switching tube K4, it is being back to the second inductance L2, so as to the second stabilising arc switching tube K2On will not produce peak voltage, reliability is high.
Above are only the processing procedure once to commutate of welding current, welding machine can process circulation described above be operated.
In addition, in the non-contact striking of welding machine, corresponding first stabilising arc switching tube K can be also opened1With the second stabilising arc switching tube K2, now
Energy-storage module 600 is used to aid in striking, so as to further improve the success rate of striking.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of welding machine arc stabilizer, including：
Rectification module, the first input end of the rectification module are connected with the head tap of the secondary coil of welding machine, the rectification mould
Second input of block is connected with the afterbody tap of the secondary coil of the welding machine, for the secondary coil of the welding machine is defeated
The AC rectification gone out is into direct current；
Inversion module, the first input end of the inversion module are connected with the first output end of the rectification module, the inversion mould
Second input of block is connected with the second output end of the rectification module, for being alternating current by the DC inverter
Afterwards, the first output end as the welding machine；
Output reactance device, the first end of the output reactance device are connected with the centre tap of the secondary coil of the welding machine, and this is defeated
Go out second output end of second end as the welding machine of reactor；
Characterized in that, also include：
Positive polarity times die block, the input of the positive polarity times die block are connected with the head tap of the secondary coil of the welding machine
Connect, the output voltage of the secondary coil for raising the welding machine；
Negative polarity times die block, the input of the negative polarity times die block are connected with the afterbody tap of the secondary coil of the welding machine
Connect, the output voltage of the secondary coil for raising the welding machine；
Energy-storage module, the first input end of the energy-storage module are connected with the output end of the positive polarity times die block, the energy storage
Second input of module is connected with the output end of the negative polarity times die block, the 3rd input of the energy-storage module and institute
The centre tap for stating the secondary coil of welding machine is connected, the first output end of the energy-storage module and the first of the rectification module defeated
Go out end to be connected, the second output end of the energy-storage module is connected with the second output end of the rectification module, for storing
The energy for stating positive polarity times die block and the negative polarity times die block provides energy with the work for the inversion module.
2. welding machine arc stabilizer according to claim 1, it is characterised in that also steady including the first stabilising arc switching tube and second
Arc switching tube；
The first end of the first stabilising arc switching tube is connected with the first output end of the energy-storage module, and first stabilising arc is opened
The second end for closing pipe is connected with the first output end of the rectification module；
The first end of the second stabilising arc switching tube is connected with the second output end of the energy-storage module, and second stabilising arc is opened
The second end for closing pipe is connected with the second output end of the rectification module.
3. welding machine arc stabilizer according to claim 1, it is characterised in that the inversion module includes the first inverse switch
Pipe, the second inverse switch pipe, the first diode and the second diode；
The first end of the first inverse switch pipe is connected with the positive input of first diode, first inversion
First output end at the second end of switching tube, the reverse input end of first diode and the rectification module is connected；
The first end of the second inverse switch pipe is connected with the reverse input end of second diode, second inversion
Second output end at the second end of switching tube, the positive input of second diode and the rectification module is connected；
The first end of the first inverse switch pipe is used as the weldering after being connected with the first end of the second inverse switch pipe
First output end of machine.
4. welding machine arc stabilizer according to claim 3, it is characterised in that also including the 3rd diode and the four or two pole
Pipe；
The reverse input end of 3rd diode is connected with the first output end of the energy-storage module, the 3rd diode
Positive input be connected with the first output end of the rectification module；
The positive input of 4th diode is connected with the second output end of the energy-storage module, the 4th diode
Reverse input end be connected with the second output end of the rectification module.
5. welding machine arc stabilizer according to claim 4, it is characterised in that also including the first inductance, the second inductance, the 5th
Diode and the 6th diode；
The of the first end of first inductance, the reverse input end of the 5th diode and the first stabilising arc switching tube
Two ends are connected, and the second end of first inductance is connected with the first output end of the rectification module；
The of the first end of second inductance, the positive input of the 6th diode and the second stabilising arc switching tube
Two ends are connected, and the second end of second inductance is connected with the second output end of the rectification module；
Positive input, the reverse input end of the 6th diode and the secondary wire of the welding machine of 5th diode
The centre tap of circle is connected.
6. welding machine arc stabilizer according to claim 5, it is characterised in that the energy-storage module include the first electric capacity and
Second electric capacity, the first end of first electric capacity are connected with the output end of the positive polarity times die block, first electric capacity
The second end, the first end of second electric capacity and the centre tap of secondary coil of the welding machine be connected, described second
Second end of electric capacity is connected with the output end of the negative polarity times die block.
7. welding machine arc stabilizer according to claim 6, it is characterised in that the positive polarity times die block and described negative
Polarity times die block is the voltage doubling rectifing circuit being made up of capacity cell and diode element.
8. welding machine arc stabilizer according to claim 7, it is characterised in that also welded including the 3rd electric capacity and high-frequency arc strike
Transformer, the primary of the high-frequency arc strike welding transformer connect striking electric current, the secondary wire of the high-frequency arc strike welding transformer
The first end of the first end of circle, the second end of the output reactance device and the 3rd electric capacity is connected, the high-frequency arc strike
Second output end of second end of the secondary coil of welding transformer as the welding machine, the second end of the 3rd electric capacity and institute
The output end for stating inversion module is connected, the first output end as the welding machine.
9. welding machine arc stabilizer according to claim 8, it is characterised in that the first inverse switch pipe, described second
Inverse switch pipe, the first stabilising arc switching tube and the second stabilising arc switching tube are HF switch.
10. welding machine arc stabilizer according to claim 9, it is characterised in that the rectification module is full-bridge rectification module.
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| CN201610565583.1A CN107627009B (en) | 2016-07-18 | 2016-07-18 | Arc stabilizer of welder |
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| CN201610565583.1A CN107627009B (en) | 2016-07-18 | 2016-07-18 | Arc stabilizer of welder |
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