CN207593018U - Portable inverter arc welding system - Google Patents
Portable inverter arc welding system Download PDFInfo
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- CN207593018U CN207593018U CN201721705078.9U CN201721705078U CN207593018U CN 207593018 U CN207593018 U CN 207593018U CN 201721705078 U CN201721705078 U CN 201721705078U CN 207593018 U CN207593018 U CN 207593018U
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Abstract
The embodiment of the present application provides a kind of portable inverter arc welding system, which includes：Current rectifying and wave filtering circuit, first voltage sample circuit and the first controllable switch coupled successively；Battery pack, second voltage sample circuit and the second controllable switch coupled successively；Electronic switching circuit, transformer switching circuit and the output rectification circuit coupled successively；The input terminal of the electronic switching circuit couples respectively with first controllable switch and second controllable switch；Control unit, for obtaining the voltage signal of the first voltage sample circuit and second voltage sample circuit acquisition, and according to the working condition of voltage signal control first controllable switch, second controllable switch and the transformer switching circuit.The embodiment of the present application is simple in structure, cost is relatively low and applied widely.
Description
Technical field
This application involves arc welding system technical field, more particularly, to a kind of portable inverter arc welding system.
Background technology
At present, high-power arc-welding machine generally requires connection AC power and uses, and general in the place of no Alternating Current Power Supply
Need fuel electric generator coordinating operation.But fuel electric generator volume is big, weight weight, difficult, can not meet as working at height,
The application of the operating modes such as underground piping repair, mining construction, emergency disaster relief, and fuel electric generator can bring air dirty at work
The environmental issues such as dye, noise pollution.
In view of the above-mentioned problems, occurs the portable arc welding machine with lithium battery power supply currently on the market, with portable, nothing
The advantages of pollution, is suitble to short time Emergency use in the wild.However, during the application is realized, present inventor
It was found that：To realize power supply switching, this portable arc welding machine needs to configure two sets of electronic switching circuits.Therefore, it is existing portable
The structure of formula arc-welding machine is complex, and cost is higher.
Utility model content
The embodiment of the present application is designed to provide a kind of portable inverter arc welding system, to simplify portable inverter arc-welding
The structure of system reduces its cost.
In order to achieve the above objectives, the embodiment of the present application provides a kind of portable inverter arc welding system, including：
Current rectifying and wave filtering circuit, first voltage sample circuit and the first controllable switch coupled successively；
Battery pack, second voltage sample circuit and the second controllable switch coupled successively；
Electronic switching circuit, transformer switching circuit and the output rectification circuit coupled successively；The electronic switching circuit
Input terminal coupled respectively with first controllable switch and second controllable switch；
Control unit, for obtaining the voltage of the first voltage sample circuit and second voltage sample circuit acquisition
Signal, and first controllable switch, second controllable switch and the transformer is controlled to switch according to the voltage signal
The working condition of circuit.
Preferably, the transformer switching circuit, including third controllable switch and transformer；The third controllable switch
Common end is connect with the output terminal of the electronic switching circuit, first choice end and the transformer of the third controllable switch
The first armature winding be connected, the second selection end and the second armature winding phase of the transformer of the third controllable switch
Even, input terminal of the first secondary windings and second subprime winding of the transformer respectively with the output rectification circuit is connected.
Preferably, the transformer switching circuit, including third controllable switch and transformer；The third controllable switch
First choice end is connected with the first secondary windings of the transformer, the second selection end of the third controllable switch and the change
The second subprime winding of depressor is connected, the common end of the third controllable switch and the input terminal phase of the output rectification circuit
Even, output terminal of the first armature winding and the second armature winding of the transformer respectively with the electronic switching circuit is connected.
Preferably, the turn ratio of armature winding and secondary windings is 10:4.
Preferably, it is described that first controllable switch, second controllable switch and institute are controlled according to the voltage signal
The working condition of transformer switching circuit is stated, including：
When the voltage signal of first voltage sample circuit acquisition is located in the first predetermined voltage range, control successively
The first choice end and first controllable switch are in closed state.
Preferably, it is described that first controllable switch, second controllable switch and institute are controlled according to the voltage signal
The working condition of transformer switching circuit is stated, is further included：
When the voltage signal of first voltage sample circuit acquisition is located in the second predetermined voltage range, control successively
The second selection end and first controllable switch are in closed state.
Preferably, it is described that first controllable switch, second controllable switch and institute are controlled according to the voltage signal
The working condition of transformer switching circuit is stated, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second default electricity
It presses except range, and the voltage signal of second voltage sample circuit acquisition is located in first predetermined voltage range, according to
First choice end described in secondary control and second controllable switch are in closed state.
Preferably, it is described that first controllable switch, second controllable switch and institute are controlled according to the voltage signal
The working condition of transformer switching circuit is stated, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second default electricity
It presses except range, and the voltage signal of second voltage sample circuit acquisition is located in second predetermined voltage range, according to
The second selection end and second controllable switch are in closed state described in secondary control.
Preferably, it is described that first controllable switch, second controllable switch and institute are controlled according to the voltage signal
The working condition of transformer switching circuit is stated, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second default electricity
It presses except range, and the voltage signal of second voltage sample circuit acquisition is located at first predetermined voltage range and described
When except the second predetermined voltage range, first controllable switch, second controllable switch and the third is maintained controllably to open
The current state of pass is constant.
Preferably, the electronic switching circuit includes full bridge switching circuit.
By above technical solution provided by the embodiments of the present application as it can be seen that in the embodiment of the present application, external communication electricity passes through whole
The DC power supply that the DC power supply that stream filter circuit provides is provided with battery pack shares same electronic switching circuit rather than picture
Prior art DC power supply each like that sets an individual electronic switching circuit.Accordingly, with respect to the prior art, the application
The portable inverter arc welding system structure of embodiment is simpler, and cost is lower.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it can also be obtained according to these attached drawings other attached drawings.In the accompanying drawings：
Fig. 1 is the structure diagram of portable inverter arc welding system in one embodiment of the application；
Fig. 2 is the circuit diagram of portable inverter arc welding system in one embodiment of the application；
Fig. 3 is the circuit diagram of portable inverter arc welding system in another embodiment of the application；
Fig. 4 is the flow chart of the power control method of portable inverter arc welding system in one embodiment of the application.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's all other embodiments obtained without creative efforts should all belong to the application protection
Range.
Refering to what is shown in Fig. 1, the portable inverter arc welding system of one embodiment of the application can include：Rectifying and wave-filtering electricity
Road, first voltage sample circuit, the first controllable switch, battery pack, second voltage sample circuit, the second controllable switch, electronic cutting
Powered-down road, transformer switching circuit, output rectification circuit and control unit.
Wherein, current rectifying and wave filtering circuit, first voltage sample circuit and the first controllable switch are sequentially connected.Battery pack, second
Voltage sampling circuit and the second controllable switch are sequentially connected.Electronic switching circuit, transformer switching circuit and output rectification circuit
Be sequentially connected, and the input terminal of the electronic switching circuit respectively with first controllable switch and the second controllable switch phase
Even.Two sampled signal inputs of described control unit export respectively with the sampled signal of the first voltage sample circuit
End, the sampled signal output terminal correspondence of the second voltage sample circuit are connected.Three control signals of described control unit are defeated
Outlet respectively with the control signal input of first controllable switch, the control signal input of second controllable switch,
The control signal input of the transformer switching circuit, which corresponds to, to be connected.Described control unit, for obtaining the first voltage
Sample circuit and the voltage signal of second voltage sample circuit acquisition, and can according to voltage signal control described first
The working condition of control switch, second controllable switch and the transformer switching circuit.
It can thus be seen that in the portable inverter arc welding system of the application embodiment, external communication electricity passes through whole
The DC power supply that the DC power supply that stream filter circuit provides is provided with battery pack shares an electronic switching circuit rather than as existing
There is technology DC power supply each like that one individual electronic switching circuit is set.Accordingly, with respect to the prior art, the application is real
The portable inverter arc welding system structure for applying mode is simpler, and cost is lower.
In one embodiment of the application, the transformer switching circuit can include third controllable switch and transformer；
The common end of the third controllable switch is connect with the output terminal of the electronic switching circuit, and the first of the third controllable switch
Selection end is connected with the first armature winding of the transformer, the second selection end of the third controllable switch and the transformer
The second armature winding be connected, the first secondary windings and second subprime winding of the transformer respectively with the output rectified current
The input terminal on road is connected.
In another embodiment of the application, the transformer switching circuit can include third controllable switch and transformation
Device；The first choice end of the third controllable switch is connected with the first secondary windings of the transformer, and the third is controllably opened
Close second selection end be connected with the second subprime winding of the transformer, the common end of the third controllable switch with it is described defeated
The input terminal for going out rectification circuit is connected, the first armature winding and the second armature winding of the transformer respectively with the electronic cutting
The output terminal on powered-down road is connected.
In the above embodiment of the application, the number of turn phase of first armature winding and second armature winding
Together, first secondary windings is identical with the number of turn of the second subprime winding；As needed, first armature winding and institute
The turn ratio for stating the first secondary windings can be 10:4.
In the prior art, the DC power supply that the DC power supply that current rectifying and wave filtering circuit provides is provided with battery pack is set respectively
There are individual electronic switching circuit, and the circle of the primary and secondary winding of the transformer of the output terminal connection of each electronic switching circuit
Number ratios be to immobilize, therefore, the prior art can not meet simultaneously variety classes alternating current use (such as AC110V,
AC220V etc.).
And in the portable inverter arc welding system of the application embodiment, relative to the prior art, transformer is replaced
For transformer switching circuit, (structure of the transformer switching circuit and its relationship between other component have hereinbefore been explained
It is bright), and control unit can be according to the voltage signal control that first voltage sample circuit and second voltage sample circuit acquire
The working condition of first controllable switch, second controllable switch and the transformer switching circuit, also achieves to transformer
The selection of the turn ratio of transformer in switching circuit, so that the portable inverter arc welding system of the application embodiment can
Meet the use of different types of alternating current simultaneously.Such as outside access AC110V alternating currents when, may be selected armature winding with
The turn ratio of secondary windings is 10:4；And when accessing AC220V alternating currents in outside, armature winding and secondary windings may be selected
Turn ratio is 20:4.Therefore, the portable inverter arc welding system application range of the application embodiment is more extensive.
Refering to what is shown in Fig. 4, in one embodiment of the application, described control unit obtains the first voltage sample circuit
With the voltage signal of second voltage sample circuit acquisition, and according to the voltage signal control first controllable switch,
The working condition of second controllable switch and the transformer switching circuit, may comprise steps of：
S401, first voltage sample circuit and the voltage signal of second voltage sample circuit acquisition are obtained.
S402, judge first voltage sample circuit acquisition voltage signal whether be located at the first predetermined voltage range in or
In the second predetermined voltage range.When the voltage signal of first voltage sample circuit acquisition is located at the described first default electricity
When in the range of pressure, step S403a is performed.It is preset when the voltage signal of first voltage sample circuit acquisition is located at described second
When in voltage range, step S403b is performed.When the voltage signal of first voltage sample circuit acquisition is located at described second in advance
If step S404 is performed when except voltage range and second predetermined voltage range.
S403a, when the first voltage sample circuit acquisition voltage signal be located in the first predetermined voltage range when, according to
First choice end described in secondary control and first controllable switch are in closed state.For example, when external access 220V alternating currents
When, voltage is direct current 310V after rectifying and wave-filtering, and the voltage that first voltage sample circuit acquires in step S401 is
DC310V belongs to the first predetermined voltage range, and therefore, control unit can control the first choice end and described first can successively
Control switch is in closed state.At this time by 220V Alternating Current Power Supplies, the turn ratio of transformer is 20:4, when unloaded, export rectified current
The voltage of road output is about DC62V, meets the requirement of machine initial arc voltage.Wherein, the control first choice end and institute
The first controllable switch is stated in closed state to refer to：If the first choice end currently for off-state, is closed described the
One selection end；If the first choice end has currently been in closed state, its closure is maintained；If correspondingly, described
One controllable switch is currently off-state, then is closed first controllable switch；If first controllable switch has currently been located
In closed state, then its closure is maintained.
S403b, when the first voltage sample circuit acquisition voltage signal be located in the second predetermined voltage range when, according to
The second selection end and first controllable switch are in closed state described in secondary control.For example, when external access 110V alternating currents
When, voltage is direct current 155V after rectifying and wave-filtering, and the voltage that first voltage sample circuit acquires in step S401 is
DC155V, positioned at the second predetermined voltage range, therefore, control unit can control the second selection end and described first can successively
Control switch is in closed state.At this time by 110V Alternating Current Power Supplies, the turn ratio of transformer is 10:4, when unloaded, export rectified current
The voltage of road output is about DC62V, also meets the requirement of machine initial arc voltage.
S404, judge whether the voltage signal of first voltage sample circuit acquisition is located in first predetermined voltage range
Or in second predetermined voltage range.When the voltage signal of second voltage sample circuit acquisition is located at described the
Step S405a is performed when in one predetermined voltage range.Described in being located at when the voltage signal of second voltage sample circuit acquisition
Step S405b is performed when in the second predetermined voltage range.When the voltage signal of second voltage sample circuit acquisition is located at institute
When stating except the second predetermined voltage range and second predetermined voltage range, step S406 is performed.
S405a, when the second voltage sample circuit acquisition voltage signal be located in first predetermined voltage range,
The first choice end and second controllable switch is controlled to be in closed state successively.
S405b, when the second voltage sample circuit acquisition voltage signal be located in second predetermined voltage range,
The second selection end and second controllable switch is controlled to be in closed state successively.
S406, when the second voltage sample circuit acquisition voltage signal be located at first predetermined voltage range and institute
When stating except the second predetermined voltage range, maintain first controllable switch, second controllable switch and the third controllable
The current state of switch is constant.
It can be seen that above-mentioned power control method preferentially using external communication power supply by the way of, when external communication electricity does not have
When the range of the voltage of access or access is undesirable, then using by by the way of battery-powered.So as to be conducive to improve this
Apply for the portable inverter arc welding system cruising ability of embodiment.
In one embodiment of the application, during normal work, described control unit can be adjusted by full bridge switching circuit and be opened
Duty ratio is closed to obtain the output external characteristic for meeting welding demand.
In one embodiment of the application, the voltage of the alternating current can be AC100V~130V or AC220~240V.
The battery pack can be lithium battery group, and the voltage of the battery pack is DC155V ± 20% or DC310V ± 20%.Correspondingly,
First predetermined voltage range can be DC310V ± 20%；Second predetermined voltage range can be DC155V ±
20%.The battery pack of the application embodiment uses DC155V, is rather than routine techniques using the reason of DC48V：More
In the case of, if using DC48V, transformer need to use step-up transformer that could meet welding requirements, can so increase electronic cutting
The current stress on powered-down road damages so as to be easy to cause the component of electronic switching circuit when seriously generating heat, so as to contract significantly
Its short service life.In another embodiment, the electric battery pack can be dismountable, in favor of the replacement of battery pack
And maintenance.
With reference to shown in Fig. 2 or Fig. 3, in one embodiment of the application, the current rectifying and wave filtering circuit may include diode D1,
D2, D3, D4 and capacitance C1.The alternating current of input is shaped to smooth direct current by the current rectifying and wave filtering circuit.Wherein, it is described defeated
The voltage of the alternating current entered is, for example, AC100V~130V or AC220~240V etc..
With reference to shown in Fig. 2 or Fig. 3, in one embodiment of the application, the first voltage sample circuit may include resistance
R1, resistance R2, capacitance C2 and zener diode Z1.The output of the current rectifying and wave filtering circuit can be carried out first by resistance R1, resistance R2
Partial pressure, is input to a sampled signal input of described control unit after being filtered using capacitance C2, the sampled signal is defeated
Enter end for example can unit in order to control analog-to-digital conversion (Analog-to-Digital Convert, abbreviation AD) acquisition port etc..
Wherein, sampling of the voltage no more than described control unit that zener diode Z1 can be used for after limiting resistance R1, resistance R2 partial pressures is believed
The maximum permissible voltage of number input terminal, to prevent from damaging the sampled signal input.
With reference to shown in Fig. 2 or Fig. 3, in one embodiment of the application, the second electricity described in the second voltage sample circuit
Pressure sample circuit may include resistance R3, resistance R4, capacitance C3 and zener diode Z2.The output of the battery pack can be first by resistance
R3, resistance R4 are divided, another sampled signal input of described control unit is input to after being filtered using capacitance C3
(such as AD acquisitions port of control unit etc.).Similar, after zener diode Z2 can be used for limiting resistance R3, resistance R4 partial pressure
Voltage be no more than described control unit sampled signal input maximum permissible voltage, it is defeated to prevent from damaging the sampled signal
Enter end.
With reference to shown in Fig. 2 or Fig. 3, in one embodiment of the application, the first controllable switch K1 is controlled by the control
Unit processed, available for switching AC power as power supply.The first controllable switch K1 for example can be D.C. contactor,
DC relay or other controllable electronic switching devices, such as Metal-Oxide Semiconductor field-effect transistor (Metal-
Oxide-Semiconductor Field-Effect Transistor, abbreviation MOSFET), bipolar junction transistor
(Bipolar Junction Transistor, abbreviation BJT), silicon-controlled, insulated gate bipolar transistor (Insulated
Gate Bipolar Transistor, abbreviation IGBT) etc.).
With reference to shown in Fig. 2 or Fig. 3, in one embodiment of the application, the second controllable switch K2 is controlled by the control
Unit processed, available for switching battery pack as power supply.Similar, the second controllable switch K2 can also be direct current contact
Device, relay or other electronic switching devices, such as it is IGBT, MOSFET, BJT, silicon-controlled, for switching battery pack as power supply
Power supply.
In another embodiment of the application, the first controllable switch K1 and the second controllable switch K2 can also be single
One group of transfer contact of controllable switch, such as normally closed, the normally opened contact of D.C. contactor, relay.With reference to shown in Fig. 2 or Fig. 3,
In one illustrative embodiments of the application, the electronic switching circuit for example can be full bridge switching circuit.The full-bridge is opened
Powered-down road can be made of switching tube Q1, Q2, Q3, Q4, and the switching tube can be single tube IGBT, MOSFET or integrate
The IGBT module of formula.
With reference to shown in Fig. 2, in one illustrative embodiments of the application, the transformer switching circuit can include third
Controllable switch K3 and transformer T1.The common end of third controllable switch K3 connects the switching tube Q2 and Q4 of the full bridge switching circuit
Node, the normally-closed contact and normally opened contact of third controllable switch K3 connect the both ends of the armature winding N1 of transformer T1 respectively,
Armature winding N2 one end of transformer T1 is connect with armature winding N1, the node of the other end connecting valve pipe Q1 and Q3.Transformer
Secondary windings N3, N4 series connection of T1, intermediate node connect output rectification circuit as negative pole of output end, in addition both ends.By cutting
Change normally closed, the normally opened contact of third controllable switch K3, thus it is possible to vary the number of turn of the armature winding of transformer T1.As K3 is connected to A
End, then the armature winding of transformer T1 is composed in series by N1, N2 in circuit, and the number of turn is sum of the two；If K3 is connected to B ends, then
The armature winding of transformer T1 is individually made of N2 in circuit, and the number of turn is the number of turn of N2.It in this way can be according to power supply electricity
The size of pressure to switch the state of K3, is changed the primary and secondary turn ratio of T1, the application of different electrical power can be realized with this.
With reference to shown in Fig. 3, in another embodiment of the application, the transformer switching circuit can also be controllable by third
Switch K3, transformer T1 composition, the output of the armature winding N1 connection full bridge switching circuits of transformer T1, secondary windings N2, N3
Series connection, the A ends of one end connection third controllable switch K3 of N2, the B ends of the intermediate node connection third controllable switch K3 of N2, N3,
The other end of N3 connects output rectification circuit with the common end of third controllable switch K3.This mode is by switching transformer T1
The number of turn of secondary windings adapt to different power supplies, when K3 is connected to A ends, secondary windings N2, N3 series connection output are secondary
Umber of turn is sum of the two；When K3 is connected to B ends, secondary windings N3 is individually exported.This mode can also realize that more power supplys supply
Electricity.
In one illustrative embodiments of the application, the third controllable switch K3 can be D.C. contactor or relay
Deng at least one set of normally closed, normally opened contact.
With reference to shown in Fig. 2, in one embodiment of the application, the rectifying output circuit may include diode D5, D6.Two
The secondary windings of transformer T1 can be exported and carry out full-wave rectification by pole pipe D5, D6, the output terminal connection D5 of secondary windings N3, secondary
The output terminal connection D6 of winding N4, the cathode of diode D5, D6 are connected together as output head anode.
With reference to shown in Fig. 3, in another embodiment of the application, the output rectification circuit can also include by diode
The bridge rectifier of D7, D8, D9, D10 composition, input terminal connect respectively third controllable switch K3 common end and it is secondary around
One end of group N3, the cathode of D7, D8 connect together as output head anode, and the anode of D9, D10 connect together to be born as output terminal
Pole.
In some embodiments, described control unit can be by by electronic component and logic element (or logic electricity
Road) etc. compositions hardware circuit realize.
In another embodiment, in the case of more, described control unit can be processor.In some embodiments
In, the processor for example can be micro-control unit (Microcontroller Unit, i.e. MCU) (such as microcontroller etc.),
Digital signal processor (Digital Signal Processing, abbreviation DSP), Digital Signals unit (Digital
Signal Controller, abbreviation DSC), programmable logic device (Programmable Logic Device, abbreviation PLD),
The programmable integrated circuits modules such as ARM (Acorn RISC Machine) processor.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in same or more or hardware during application.
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability
Comprising so that system, method or equipment including a series of elements not only include those elements, but also including not
There is the other element being expressly recited or further include as this system, method or the intrinsic element of equipment.Do not having
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that the system including the element,
Also there are other identical elements in method or equipment.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Point just to refer each other, and the highlights of each of the examples are difference from other examples.Especially for method reality
For applying example, since it is substantially similar to system embodiment, so description is fairly simple, related part is referring to system embodiment
Part explanation.
The foregoing is merely embodiments herein, are not limited to the application.For those skilled in the art
For, the application can have various modifications and variations.All any modifications made within spirit herein and principle are equal
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (10)
1. a kind of portable inverter arc welding system, which is characterized in that including：
Current rectifying and wave filtering circuit, first voltage sample circuit and the first controllable switch coupled successively；
Battery pack, second voltage sample circuit and the second controllable switch coupled successively；
Electronic switching circuit, transformer switching circuit and the output rectification circuit coupled successively；The electronic switching circuit it is defeated
Enter end to couple with first controllable switch and second controllable switch respectively；
Control unit, for obtaining the voltage letter of the first voltage sample circuit and second voltage sample circuit acquisition
Number, and first controllable switch, second controllable switch and the transformer is controlled to switch electricity according to the voltage signal
The working condition on road.
2. portable inverter arc welding system as described in claim 1, which is characterized in that the transformer switching circuit, including
Third controllable switch and transformer；The common end of the third controllable switch is connect with the output terminal of the electronic switching circuit,
The first choice end of the third controllable switch is connected with the first armature winding of the transformer, the third controllable switch
Second selection end is connected with the second armature winding of the transformer, the first secondary windings and second subprime of the transformer around
Input terminal of the group respectively with the output rectification circuit is connected.
3. portable inverter arc welding system as described in claim 1, which is characterized in that the transformer switching circuit, including
Third controllable switch and transformer；The first choice end of the third controllable switch and the first secondary windings phase of the transformer
Even, the second selection end of the third controllable switch is connected with the second subprime winding of the transformer, and the third is controllably opened
The common end of pass is connected with the input terminal of the output rectification circuit, the first armature winding and the electronic cutting of the transformer
The output terminal on powered-down road is connected.
4. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that armature winding and secondary windings
Turn ratio is 10:4.
5. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that described according to the voltage signal
The working condition of first controllable switch, second controllable switch and the transformer switching circuit is controlled, including：
When the voltage signal of first voltage sample circuit acquisition is located in the first predetermined voltage range, successively described in control
First choice end and first controllable switch are in closed state.
6. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that described according to the voltage signal
The working condition of first controllable switch, second controllable switch and the transformer switching circuit is controlled, is further included：
When the voltage signal of first voltage sample circuit acquisition is located in the second predetermined voltage range, successively described in control
Second selection end and first controllable switch are in closed state.
7. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that described according to the voltage signal
The working condition of first controllable switch, second controllable switch and the transformer switching circuit is controlled, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second predeterminated voltage model
Except enclosing, and the voltage signal of second voltage sample circuit acquisition is located in first predetermined voltage range, controls successively
It makes the first choice end and second controllable switch is in closed state.
8. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that described according to the voltage signal
The working condition of first controllable switch, second controllable switch and the transformer switching circuit is controlled, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second predeterminated voltage model
Except enclosing, and the voltage signal of second voltage sample circuit acquisition is located in second predetermined voltage range, controls successively
It makes the second selection end and second controllable switch is in closed state.
9. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that described according to the voltage signal
The working condition of first controllable switch, second controllable switch and the transformer switching circuit is controlled, is further included：
When the voltage signal of first voltage sample circuit acquisition is located at the first predetermined voltage range and the second predeterminated voltage model
Except enclosing, and the voltage signal of second voltage sample circuit acquisition is located at first predetermined voltage range and described second
When except predetermined voltage range, first controllable switch, second controllable switch and the third controllable switch are maintained
Current state is constant.
10. portable inverter arc welding system as claimed in claim 2 or claim 3, which is characterized in that the electronic switching circuit includes
Full bridge switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705078.9U CN207593018U (en) | 2017-12-08 | 2017-12-08 | Portable inverter arc welding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721705078.9U CN207593018U (en) | 2017-12-08 | 2017-12-08 | Portable inverter arc welding system |
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| CN207593018U true CN207593018U (en) | 2018-07-10 |
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| CN201721705078.9U Active CN207593018U (en) | 2017-12-08 | 2017-12-08 | Portable inverter arc welding system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813031A (en) * | 2017-12-08 | 2018-03-20 | 苏州绿恺动力电子科技有限公司 | Portable inverter arc welding system and its power control method |
-
2017
- 2017-12-08 CN CN201721705078.9U patent/CN207593018U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813031A (en) * | 2017-12-08 | 2018-03-20 | 苏州绿恺动力电子科技有限公司 | Portable inverter arc welding system and its power control method |
| WO2019109759A1 (en) * | 2017-12-08 | 2019-06-13 | 苏州绿恺动力电子科技有限公司 | Portable inverter arc welding system and power control method thereof |
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