CN101844277B - Discharging circuit for welding discharger - Google Patents
Discharging circuit for welding discharger Download PDFInfo
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- CN101844277B CN101844277B CN2009100971758A CN200910097175A CN101844277B CN 101844277 B CN101844277 B CN 101844277B CN 2009100971758 A CN2009100971758 A CN 2009100971758A CN 200910097175 A CN200910097175 A CN 200910097175A CN 101844277 B CN101844277 B CN 101844277B
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Abstract
The invention discloses a discharging circuit for welding a discharger. The discharging circuit is characterized in that: a controller circuit (a) comprises an MCU controller (a1), a threshold detection circuit (a2), a discharge driving circuit (a3) and a protection and control circuit (a4); a power control circuit (b) comprises a starting switch (b1), a power control logic circuit (b2), a switching circuit (b3), a voltage stabilizing circuit (b4) and a power supply (b5); a high-frequency oscillating circuit (c) comprises an adjustable converter (c1) and a charge sampling circuit (c2); and a charging and discharging protection and control circuit (d) comprises a transformer circuit (d1), a rectifier circuit (d2), a charging circuit (d3), a discharging circuit (d4), an electrode (d5) and a protection circuit (d6) which are connected through rational circuit structures. The discharging circuit of the invention solves the problem that transient shock pulse may be produced at the control end of the controller during the discharging of the discharger due to unreasonable structures designed for the protection circuit, the charging circuit and the discharging circuit and avoids damaging the controller so as to smoothly charge the protection circuit.
Description
Technical field
The present invention relates to a kind of discharge circuit that is used for welding discharger.
Background technology
Usually, metal solder all needs external power supply or fuel gas, and like this, operation is very inconvenient in the open air, in the high mountain, big seagoing vessel.Therefore, be in this construction environment, be electrically connected the technology tradition and adopt modes such as bolt, periphery pressurization, crimping to connect more.But this connected mode joint is aging fast; And the resistance of joint is generally bigger than normal; When big electric current passes through; Have very big hidden danger, service life is not long yet, and especially the lightning protection grounding network in large-scale petroleum chemical base, transformer station, power plant lays, is very easy in the earthed system of intelligent skyscraper accidents caused.For this reason, people have designed the equipment that a kind of metal solder is carried out in mould, and the package body that is about to packaging structure is directly put into the mould that needs welding; Cover die cover then, and the bar of igniting in the package body stretches out from die cover, the bar of igniting outside stretching out die cover is connected with power supply then; The end that bar stretches in the welding compound pulvis owing to ignite has aperture, and simultaneously, people have designed the discharge road of soldering apparatus; Discharger puncture short and moment get angry and produce high temperature; Thereby the welding compound that ignites burns and reacts, so the not igniting by hand of whole process is used very convenient.But in the discharge circuit of present discharger; Include by controller circuitry, power control circuit, high-frequency oscillating circuits, discharge and recharge and protect control circuit to form; Because holding circuit and charging circuit, discharge circuit designed circuit unreasonable structure can produce the moment impact pulse at the controller control end in discharge process, very easily cause controller to damage; Make holding circuit be in discharge condition all the time, charging can't be carried out.So its circuit structure awaits further to improve.
Summary of the invention
Technical problem to be solved by this invention is to provide to above-mentioned prior art present situation that a kind of circuit structure is reasonable, charging effect good and controller is not fragile and the discharge circuit that is used for welding discharger in prolongation discharger service life.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the discharge circuit that originally is used for welding discharger; By controller circuitry, power control circuit, high-frequency oscillating circuits, discharge and recharge and protect control circuit to form; It is characterized in that: said controller circuitry includes: MCU controller, threshold detection circuit, discharge drive circuit and protection control circuit; And said power control circuit includes: firing switch, power control logic circuit, on-off circuit, mu balanced circuit and power supply; Said high-frequency oscillating circuits includes: adjustable converter, charging sample circuit, and saidly discharge and recharge and protect control circuit to include: transformer circuit, rectification circuit, charging circuit, discharge circuit, electrode and holding circuit; Said MCU controller one input is connected with the output of threshold detection circuit; And the input of threshold detection circuit is connected with an output of charging sample circuit; And another input of MCU controller is connected with the output of mu balanced circuit; And the input of mu balanced circuit is connected with the output of on-off circuit; And the output of on-off circuit is connected with an input of adjustable converter simultaneously, and an input of on-off circuit is connected with power supply, and the while power supply is connected with an input of transformer circuit; Another input of said on-off circuit is connected with the output of power control logic circuit; And an input of power control logic circuit is connected with firing switch, and another input of power control logic circuit is connected with an output of holding circuit, and the output of said MCU controller connects together with the input of discharge drive circuit, the input of protection control circuit, another input of adjustable converter simultaneously; And the output of protection control circuit is connected with an input of holding circuit; And another input of holding circuit is connected with an output of charging circuit, and the output of said discharge drive circuit is connected with the input of discharge circuit, and described another input of adjustable converter is connected with another output of charging sample circuit; And the input of charging sample circuit is connected with another output of charging circuit; And the output of said adjustable converter is connected with another input of transformer circuit, and the output of transformer circuit is connected with the input of rectification circuit, and the output of rectification circuit is connected with the input of charging circuit; And an output again of charging circuit is connected with an input of electrode, and another input of electrode is connected with the discharge circuit output.
As improvement, said controller circuitry is connected through photoelectrical coupler with holding circuit.Adopt photoelectrical coupler in the protection control circuit, can better protect the MCU controller, further eliminate the hidden danger of prior art from mechanically MCU controller and protection control circuit being broken off.
Improve, said controller circuitry wherein also can be provided with the indicator lamp control circuit again.
Improve said power supply again and be preferably battery or battery pack, use is more flexible, more convenient.
Compared with prior art; The present invention adopts controller circuitry to include: MCU controller, threshold detection circuit, discharge drive circuit and protection control circuit; And said power control circuit includes: firing switch, power control logic circuit, on-off circuit, mu balanced circuit and power supply; Said high-frequency oscillating circuits includes: adjustable converter, charging sample circuit; And saidly discharge and recharge and protect control circuit to include: transformer circuit, rectification circuit, charging circuit, discharge circuit, electrode and holding circuit; And be connected through reasonable circuit structure, thereby overcome because the factor of holding circuit and charging circuit, discharge circuit designed circuit unreasonable structure, having eliminated discharger can be in the problem of controller control end generation moment impact pulse in discharge process; Avoid causing the damage of controller, holding circuit can successfully be charged.So this circuit structure is a kind of very practical structure, is worthy of popularization.
Description of drawings
Fig. 1 is the structural circuit block diagram of the embodiment of the invention;
Fig. 2 is the circuit diagram of Fig. 1.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the discharge circuit that is used for welding discharger of present embodiment is by controller circuitry a, power control circuit b, high-frequency oscillating circuits c, discharge and recharge and protect control circuit d to form.Controller circuitry a includes: MCU controller a1, threshold detection circuit a2, discharge drive circuit a3 and protection control circuit a4; And controller circuitry a1 is connected through photoelectrical coupler 1 with holding circuit d6; See shown in Figure 2; And the indicator lamp control circuit also is set among the controller circuitry a, in time to tell control step and result.And power control circuit b includes: firing switch b1, power control logic circuit b2, on-off circuit b3, mu balanced circuit b4 and power supply b5; High-frequency oscillating circuits c includes: adjustable converter c1, charging sample circuit c2; And discharge and recharge and protect control circuit d to include: transformer circuit d1, rectification circuit d2, charging circuit d3, discharge circuit d4, electrode d5 and holding circuit d6.MCU controller a1 one input is connected with the output of threshold detection circuit a2; And the input of threshold detection circuit a2 is connected with the output of charging sample circuit c2; And another input of MCU controller a1 is connected with the output of mu balanced circuit b4; And the input of mu balanced circuit b4 is connected with the output of on-off circuit b3; And the output of on-off circuit b3 is connected with the input of adjustable converter c1 simultaneously; And the input of on-off circuit b3 is connected with power supply b5, and power supply b5 is connected with the input of transformer circuit d1 simultaneously, and another input of said on-off circuit b3 is connected with the output of power control logic circuit b2; And the input of power control logic circuit b2 is connected with firing switch b1, and another input of power control logic circuit b2 is connected with the output of holding circuit d6.The output of MCU controller a1 connects together with the input of discharge drive circuit a3, the input of protection control circuit a4, another input of adjustable converter c1 simultaneously; And the output of protection control circuit a4 is connected with the input of holding circuit d6, and another input of holding circuit d6 is connected with the output of charging circuit d3.The output of above-mentioned discharge drive circuit a3 is connected with the input of discharge circuit d4; And above-mentioned adjustable another input of converter c1 is connected with another output of charging sample circuit c2; And the input of charging sample circuit c2 is connected with another output of charging circuit d3; And the output of said adjustable converter c1 is connected with another input of transformer circuit d1; And the output of transformer circuit d1 is connected with the input of rectification circuit d2; And the output of rectification circuit d2 is connected with the input of charging circuit d3, and the output again of charging circuit d3 is connected with the input of electrode d5, and another input of electrode d5 is connected with discharge circuit d4 output.Above-mentioned power supply is adopted as battery or battery pack, specifically can decide by designing requirement.A in above-mentioned is meant a district that dotted line surrounds, and b is meant the b district that dotted line surrounds, and c is meant that the c district that dotted line surrounds, d are meant the d district that dotted line surrounds, and sees shown in Figure 1.
Below the course of work of the present invention is described further;
Working power of the present invention adopts dry cell b5, and voltage is 12V.
When firing switch b1 was closed, power control logic circuit b2 produced control signal, driving switch circuit b3 conducting, and battery b5 produces the 3.3V DC voltage through mu balanced circuit b4, and a1 provides working power for the MCU controller, and simultaneously, but DC-DC modulation parallel operation c1 gets.
After MCU controller a1 got electrician's work, a3 forbade discharge circuit d4 work through the discharge drive circuit, make holding circuit d6 be in detected state through protection control circuit a4 simultaneously, and the adjustable converter c1 of control DC-DC started working.
After DC-DC the is adjustable converter c1 work, produce higher-order of oscillation pulse, control transformer circuit d1 produces ac high-voltage, the DC voltage that charging circuit d3 is raise gradually through rectification circuit d2.In this process, charging sample circuit c2 follows the tracks of the DC voltage that raises gradually, feeds back to the adjustable converter c1 of DC-DC, and the higher-order of oscillation pulse generation of its output is changed.Control is when voltage rises to preset threshold, and charging sample circuit c2 makes threshold detection circuit a2 state variation, and MCU controller a1 changes thus to controlling the adjustable converter c1 of DC-DC and sends control signal, and it is quit work.Meanwhile, MCU controller a1 triggers discharge circuit d4 conducting through discharge drive circuit a3, forms discharge loop, and produces high-voltage pulse by electrode d5.So far, the once normal course of work finishes.Carry out task again, must break off firing switch b1, closed once more, start the new course of work.
In the charging process; The holding circuit d6 that is in detected state follows the tracks of the DC voltage that raises gradually simultaneously; If because certain fault makes charging voltage surpass preset threshold; Holding circuit d6 will be through power control logic circuit b2 stopcock circuit b3, thereby makes MCU controller a1 and the adjustable converter c1 of the DC-DC power supply of losing the job, cease operation.
When failover cease operation or course of normal operation interruption of work midway, holding circuit d6 then is in discharge condition, and the electric charge that stores among the charging circuit d3 that releases automatically prevents that electric shock accidents from taking place.
Claims (4)
1. discharge circuit that is used for welding discharger; By controller circuitry (a), power control circuit (b), high-frequency oscillating circuits (c), discharge and recharge and protect control circuit (d) to form; It is characterized in that: said controller circuitry (a) includes: MCU controller (a1), threshold detection circuit (a2), discharge drive circuit (a3) and protection control circuit (a4); And said power control circuit (b) includes: firing switch (b1), power control logic circuit (b2), on-off circuit (b3), mu balanced circuit (b4) and power supply (b5); Said high-frequency oscillating circuits (c) includes: adjustable converter (c1), charging sample circuit (c2), and saidly discharge and recharge and protect control circuit (d) to include: transformer circuit (d1), rectification circuit (d2), charging circuit (d3), discharge circuit (d4), electrode (d5) and holding circuit (d6); Said MCU controller (a1) input is connected with the output of threshold detection circuit (a2); And the input of threshold detection circuit (a2) is connected with an output of charging sample circuit (c2); And another input of MCU controller (a1) is connected with the output of mu balanced circuit (b4); And the input of mu balanced circuit (b4) is connected with the output of on-off circuit (b3); And the output of on-off circuit (b3) is connected with an input of adjustable converter (c1) simultaneously; And an input of on-off circuit (b3) is connected with power supply (b5); Power supply (b5) is connected with an input of transformer circuit (d1) simultaneously; Another input of said on-off circuit (b3) is connected with the output of power control logic circuit (b2); And an input of power control logic circuit (b2) is connected with firing switch (b1), and another input of power control logic circuit (b2) is connected with an output of holding circuit (d6), and the output of said MCU controller (a1) connects together with the input of discharge drive circuit (a3), the input of protection control circuit (a4), another input of adjustable converter (c1) simultaneously; And the output of protection control circuit (a4) is connected with an input of holding circuit (d6); And another input of holding circuit (d6) is connected with an output of charging circuit (d3), and the output of said discharge drive circuit (a3) is connected with the input of discharge circuit (d4), and another input of described adjustable converter (c1) is connected with another output of charging sample circuit (c2); And the input of charging sample circuit (c2) is connected with another output of charging circuit (d3); And the output of said adjustable converter (c1) is connected with another input of transformer circuit (d1), and the output of transformer circuit (d1) is connected with the input of rectification circuit (d2), and the output of rectification circuit (d2) is connected with the input of charging circuit (d3); And an output again of charging circuit (d3) is connected with an input of electrode (d5), and another input of electrode (d5) is connected with discharge circuit (d4) output.
2. discharge circuit according to claim 1 is characterized in that: said controller circuitry (a) is connected through photoelectrical coupler (1) with holding circuit (d6).
3. discharge circuit according to claim 2 is characterized in that: said controller circuitry (a) wherein is provided with the indicator lamp control circuit.
4. according to claim 1,2 or 3 described discharge circuits, it is characterized in that: said power supply (b5) is battery or battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100971758A CN101844277B (en) | 2009-03-26 | 2009-03-26 | Discharging circuit for welding discharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100971758A CN101844277B (en) | 2009-03-26 | 2009-03-26 | Discharging circuit for welding discharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101844277A CN101844277A (en) | 2010-09-29 |
| CN101844277B true CN101844277B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100971758A Expired - Fee Related CN101844277B (en) | 2009-03-26 | 2009-03-26 | Discharging circuit for welding discharger |
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| Country | Link |
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| CN (1) | CN101844277B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205455B (en) * | 2011-05-16 | 2014-07-16 | 王军翔 | Portable rechargeable direct-current electric welding machine |
| CN104300775B (en) * | 2014-10-29 | 2017-04-12 | 武汉精测电子技术股份有限公司 | Device and method for direct current power source to automatically and accurately output power source according to set power-on timing sequence |
| CN110346682B (en) * | 2019-07-12 | 2021-08-31 | 奇瑞新能源汽车股份有限公司 | Output connection state detection circuit and method for DCDC converter of electric vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815812A (en) * | 1972-06-23 | 1974-06-11 | D Tauern | Methods and means for counting welding operations |
| CN2109653U (en) * | 1991-10-16 | 1992-07-08 | 康伯如 | Rapid charging, point welding, start motor multi-purpose machine |
| CN1886225A (en) * | 2003-11-25 | 2006-12-27 | 弗罗纽斯国际有限公司 | Method and circuit for contactless ignition of a welding arc with high frequency ignition pulse packets |
-
2009
- 2009-03-26 CN CN2009100971758A patent/CN101844277B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3815812A (en) * | 1972-06-23 | 1974-06-11 | D Tauern | Methods and means for counting welding operations |
| CN2109653U (en) * | 1991-10-16 | 1992-07-08 | 康伯如 | Rapid charging, point welding, start motor multi-purpose machine |
| CN1886225A (en) * | 2003-11-25 | 2006-12-27 | 弗罗纽斯国际有限公司 | Method and circuit for contactless ignition of a welding arc with high frequency ignition pulse packets |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-64765A 1985.04.13 |
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| CN101844277A (en) | 2010-09-29 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: NINGBO HIGH-TECH YUANCHUANG TECHNOLOGY CO., LTD. Assignor: He Zhaonong Contract record no.: 2012330000395 Denomination of invention: Discharging circuit for welding discharger Granted publication date: 20120523 License type: Exclusive License Open date: 20100929 Record date: 20120620 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Discharging circuit for welding discharger Effective date of registration: 20140731 Granted publication date: 20120523 Pledgee: CITIC Bank, Limited by Share Ltd, Ningbo branch Pledgor: He Yingchun|He Zhaonong Registration number: 2014330000025 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20190326 |