CN201039013Y - Reverse conversion soft switch device - Google Patents
Reverse conversion soft switch device Download PDFInfo
- Publication number
- CN201039013Y CN201039013Y CNU2007200515520U CN200720051552U CN201039013Y CN 201039013 Y CN201039013 Y CN 201039013Y CN U2007200515520 U CNU2007200515520 U CN U2007200515520U CN 200720051552 U CN200720051552 U CN 200720051552U CN 201039013 Y CN201039013 Y CN 201039013Y
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- China
- Prior art keywords
- capacitance
- soft switch
- main transformer
- full
- welding machine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses an inverter welding machine soft switch device with more simple structure, which can cause an IGBT inverter welding machine to implement the soft switch in full load range. The utility model comprises a forearm consisting of a transistor Q1 and a transistor Q2, a lagging arm consisting of a transistor Q3 and a transistor Q4, a forearm parallel capacitance consisting of a capacitance C1 and a capacitance C2, and a lagging arm RC absorption circuit consisting of a capacitance C3, a capacitance C4, a resistance R1 and a resistance R2; the elements constitute a full-bridge resonant circuit; the full-bridge resonant circuit inputs a welding machine main transformer primary by the capacitance C5 and an inductor Ls, which is then output by a main transformer secondary; the utility model is characterized in that the main transformer primary is connected in parallel with an energy storage inductor LP. As the energy storage inductor LP is provided, a certain amount of energy is stored in the LP no matter empty load or light load of the welding machine output, thus causing the inverter primary loop to form suitable circumfluence and causing the IGBT to implement the conditions for zero voltage switches. The soft switch device is mainly used for inverter welding machines.
Description
Technical field
The utility model relates to the power supply of industrial IGBT inverter type welder, especially can make inverter type welder realize the device of soft switch in full-load range.
Background technology
The high-power IGBT inverter type welder adopts full bridge inverter more, control mode mostly is pulse width modulation mode, in the no-voltage pulse width modulation mode of present prior art, two brachium pontis realize that all the condition of zero voltage switch is subjected to the influence of load and input voltage, when loading on zero load or underloading, just will lose the condition of zero voltage switch, make switching loss and switching noise strengthen, be head it off, a kind of " inverter type welder realization welding machine zero load that Chinese patent application 2004100364358 discloses, soft switch device during underloading ", its scheme is the secondary method that installs secondary ancillary coil N3 and change of current inductance L additional that adopts at high frequency transformer T, when improving welding machine and loading on zero load or underloading, keep the condition of zero voltage switch, do not increase switching loss and switching noise.Though this scheme can reach goal of the invention, its structure more complicated.
The utility model content
The purpose of this utility model has provided the simpler inverter type welder soft switch device that can make the IGBT inverter type welder realize soft switch in full-load range of a kind of structure.
To achieve these goals, a kind of inverter type welder soft switch device that the utility model provides, mainly comprise high-power insulated gate bipolar transistor Q1, the leading arm that Q2 constitutes, high-power insulated gate bipolar transistor Q3, the lagging leg that Q4 constitutes, capacitor C 1, the leading arm shunt capacitance that C2 constitutes, capacitor C 3, C4 and resistance R 1, the lagging leg RC that R2 constitutes absorbs circuit, the aforementioned electronic element is formed the full-bridge resonant circuit, this full-bridge resonant circuit is by capacitor C 5, inductance L s input welding machine main transformer is elementary, by the secondary output of main transformer, it is characterized in that, at the elementary energy storage inductor LP that is parallel with of main transformer.By reaching the purpose that in full-load range, realizes zero voltage switch at the former limit of transformer energy storage inductor in parallel.
Described energy storage inductor LP twines the AC inductance that the 60-70 circle constitutes air gap with lead on EE type ferrite magnetic core.
The utility model is by the method at the elementary energy storage inductor LP in parallel of IGBT inverter type welder main transformer T, improved the working condition of IGBT inverter type welder main circuit when unloaded and underloading, keep the condition of zero voltage switch, thereby realized the soft switch in the full-load range.
The IGBT inverter type welder of this measure of employing when underloading and zero load, owing to there is not suitable energy storage, so can not form circulation at the inversion primary return, also just can not make IGBT open-minded under no-voltage.Only when heavy duty was worked, the leakage inductance that could pass through main transformer stored certain energy, formed circulation at the inversion primary return and realized that the no-voltage of IGBT is open-minded.
After adopting measure described in the utility model, when the IGBT inverter type welder in underloading with when unloaded, because the existence of energy storage inductor LP, promptly no matter welding machine output is zero load or underloading, the capital stores certain energy on LP, thereby can make the inversion primary return form suitable circulation, make IGBT realize the condition of zero voltage switch, thereby make the IGBT inverter type welder in full-load range, realize soft switch.The utility model is compared with prior art more simple, practical.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further.
Fig. 1 is the structural representation of the utility model inverter type welder soft switch device.
Embodiment
Consult Fig. 1, IGBT (insulated gate bipolar transistor) inverter type welder main circuit is made of Q1, Q2, Q3, Q4, C1, C2, C5, Ls, LP, T etc.Wherein by Q1, Q2IGBT constitutes leading arm, Q3, Q4IGBT constitutes lagging leg, and capacitor C 1, C2 are leading arm shunt capacitance, and capacitor C 3, C4 and resistance R 1, R2 constitute lagging leg RC and absorb circuit, form the full-bridge resonant circuit with upper-part, this full-bridge phase-shifting resonance circuit is by capacitor C 5, inductance L s input welding machine main transformer and and the elementary energy storage inductor LP of its parallel connection, then by the secondary output of main transformer.The characteristics of the technical program be in the elementary parallel connection of main transformer an energy storage inductor LP.Described energy storage inductor LP twines the AC inductance that the 60-70 circle constitutes air gap with lead on EE type ferrite magnetic core.
Claims (2)
1. inverter type welder soft switch device, mainly comprise the leading arm that high-power insulated gate bipolar transistor Q1, Q2 constitute, the lagging leg that high-power insulated gate bipolar transistor Q3, Q4 constitute, the leading arm shunt capacitance that capacitor C 1, C2 constitute, the lagging leg RC that capacitor C 3, C4 and resistance R 1, R2 constitute absorbs circuit, the aforementioned electronic element is formed the full-bridge resonant circuit, this full-bridge resonant circuit is elementary by capacitor C 5, inductance L s input welding machine main transformer, by the secondary output of main transformer, it is characterized in that, at the elementary energy storage inductor LP that is parallel with of main transformer.
2. inverter type welder soft switch device according to claim 1 is characterized in that: described energy storage inductor LP twines the AC inductance that the 60-70 circle constitutes air gap with lead on EE type ferrite magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200515520U CN201039013Y (en) | 2007-05-17 | 2007-05-17 | Reverse conversion soft switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200515520U CN201039013Y (en) | 2007-05-17 | 2007-05-17 | Reverse conversion soft switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039013Y true CN201039013Y (en) | 2008-03-19 |
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ID=39211539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200515520U Expired - Fee Related CN201039013Y (en) | 2007-05-17 | 2007-05-17 | Reverse conversion soft switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039013Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390001A (en) * | 2011-11-25 | 2012-03-28 | 太原市星云焊接设备有限公司 | Widened type soft-switch inverter welding machine |
| CN102784999A (en) * | 2012-08-31 | 2012-11-21 | 苏州市双马机电有限公司 | Two-transistor forward soft-switching inverter manual electric arc welder |
| CN102794539A (en) * | 2012-08-31 | 2012-11-28 | 苏州市双马机电有限公司 | Limited delay phase-shift full-bridge soft-switch inverter manual electric arc welder |
| CN106059359A (en) * | 2016-07-18 | 2016-10-26 | 杭州重芯力科技有限公司 | Bipolar power converter circuit and driving method |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
-
2007
- 2007-05-17 CN CNU2007200515520U patent/CN201039013Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390001A (en) * | 2011-11-25 | 2012-03-28 | 太原市星云焊接设备有限公司 | Widened type soft-switch inverter welding machine |
| CN102390001B (en) * | 2011-11-25 | 2014-04-16 | 太原市星云焊接设备有限公司 | Widened type soft-switch inverter welding machine |
| CN102784999A (en) * | 2012-08-31 | 2012-11-21 | 苏州市双马机电有限公司 | Two-transistor forward soft-switching inverter manual electric arc welder |
| CN102794539A (en) * | 2012-08-31 | 2012-11-28 | 苏州市双马机电有限公司 | Limited delay phase-shift full-bridge soft-switch inverter manual electric arc welder |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
| CN106059359A (en) * | 2016-07-18 | 2016-10-26 | 杭州重芯力科技有限公司 | Bipolar power converter circuit and driving method |
| CN106059359B (en) * | 2016-07-18 | 2019-11-22 | 杭州重芯力科技有限公司 | Bipolar-type power converter circuit and driving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN JASIC TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: XU AIPING Effective date: 20090508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090508 Address after: Building four, C2 building, Hengfeng Industrial Town, Xixiang, Baoan District, Guangdong, Shenzhen 518126, China Patentee after: Shenzhen Jasic Technology Development Co., Ltd. Address before: Building four, C2 building, Hengfeng Industrial Town, Xixiang, Baoan District, Guangdong, Shenzhen 518000, China Co-patentee before: Pan Lei Patentee before: Xu AI Ping Co-patentee before: Xiao Bo |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518126, Guangdong, Baoan District, Xixiang province Shenzhen Street Hengfeng Industrial City C2 Building 1, 2, 3, 4, West and 5, West and C4, building 5 Patentee after: Shenzhen Jasic Technology Co., Ltd. Address before: 518126 building C2, building four, Hengfeng Industrial Town, Xixiang, Baoan District, Shenzhen, Guangdong Patentee before: Shenzhen Jasic Technology Development Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518126 Shenzhen City Pingshan Qing Lan Road No. 3 Patentee after: Shenzhen Jasic Technology Co., Ltd. Address before: 518126, Guangdong, Baoan District, Xixiang province Shenzhen Street Hengfeng Industrial City C2 Building 1, 2, 3, 4, West and 5, West and C4, building 5 Patentee before: Shenzhen Jasic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20160517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |