CN203104314U - Five stem complex six phase half wave controllable rectifier and arc welding machine - Google Patents
Five stem complex six phase half wave controllable rectifier and arc welding machine Download PDFInfo
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- CN203104314U CN203104314U CN 201320025886 CN201320025886U CN203104314U CN 203104314 U CN203104314 U CN 203104314U CN 201320025886 CN201320025886 CN 201320025886 CN 201320025886 U CN201320025886 U CN 201320025886U CN 203104314 U CN203104314 U CN 203104314U
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Abstract
The utility model provides a five stem complex six phase half wave controllable rectifier and an arc welding machine. The five stem complex six phase half wave controllable rectifier consists of a five stem three-phase rectification transformer, a filter inductor, twelve rectifier diodes or a thyristor and a trigger circuit thereof, wherein a primary winding of the five stem three-phase rectification transformer is in delta connection and a secondary winding of the five stem three-phase rectification transformer is in dual antistar connection. The five stem complex six phase half wave controllable rectifier is characterized in that a low voltage dual antistar thyristor rectifier and a high voltage dual antistar thyristor rectifier are connected in parallel to carry out output; the two dual antistar thyristor rectifiers share the dual antistar secondary winding with a tap and a filter inductor; and direct current voltage and current of high and low voltage dual antistar thyristor rectifiers are output at two direct current output ends. The five stem complex six phase half wave controllable rectifier is widely used in a thyristor direct current arc welding machine, an electric arc furnace, electrolyzation, electrization, electroplating and other industries, and has good economic benefits.
Description
[one] technical field the utility model relates to three-phase high power factor low-voltage and high-current controlled rectifier and arc welder.
[two] the low-voltage and high-current controlled rectifier of background technology traditional classical all is to use the six-phase half wave rectifier of band interphase reactor.The utility model designer proposes to substitute three stem stem three-phase rectifier transformers with three-phase five stem stem three-phase rectifier transformers in the CN95216870.7 patent No., substitute band interphase reactor six phase half-wave controlled rectification circuits with six phase half-wave controlled rectification circuits, can reach and six mutually behind the three-phase dc arc welder of half-wave controlled rectification same effect of classical tradition band interphase reactor, the big stream controlled rectifier of low pressure is brought into use three-phase five stem stem rectifier transformers six phase half-wave controlled rectifiers.Same inventor also is to use six half-wave controlled rectification circuits mutually of three-phase three stem stem rectifier transformers and band interphase reactor in compound double reverse-stars type controlled rectification circuit application for a patent for invention number 201210061574.0 files.
{ three } the summary of the invention the purpose of this utility model is: use five stem stem three-phase rectifier transformers to substitute the interphase reactor of same inventor in compound double reverse-stars type controlled rectification circuit application for a patent for invention file, manufacture and design low-voltage, high-current controlled rectifier of new generation and arc welder.
To achieve these goals, the utility model adopts 1 three or five stem stem three-phase rectifier transformer, 1 filter inductance, 12 rectifications or controlled rectification device and circuits for triggering thereof are formed, 6 rectifications or controlled rectification device connect into 1 low pressure six phase half-wave rectification or controlled rectification circuit, 6 controlled rectification devices connect into 1 higher pressure, six phase half-wave controlled rectification circuits in addition, it is characterized in that: the rectifier transformer iron core is five stem stems, elementary 3 windings are Y-connections, secondary have 6 to be with tapped winding, 3 secondary winding connect into positive star by forward, 3 secondary winding are by oppositely connecting into anti-star in addition, end of 2 central points and filter inductances of positive and negative star winding is connected, another end of filter inductance is an output negative terminal of controlled rectifier, or anode; 6 centre taps are connected with the anode of 6 rectifications or controlled rectification device respectively, or negative electrode, 6 secondary winding terminations connect the anode of 6 controlled rectification devices respectively, or negative electrode, the negative electrode of 12 rectifications or controlled rectification device, or anode to be connected be another anode of rectifier output, or negative terminal.
The utility model is the compound six phase half-wave controlled rectifiers of a kind of five stem stems, it is Y-connections by 1 elementary three phase winding, secondary six phase windings are five stem stem three-phase rectifier transformers that double reverse-stars type connects, 1 filter inductance, 12 rectifications or controlled rectification device and circuits for triggering thereof are formed, it is characterized in that: 1 low pressure double reverse-stars type silicon controlled rectifier and 1 high pressure double reverse-stars type silicon controlled rectifier output in parallel, the winding of the secondary band tap of two public double reverse-stars types of double reverse-stars type silicon controlled rectifier, with 1 filter inductance, two dc output end outputs are high, the direct voltage and the electric current of the brilliant lock rectifier of low pressure double reverse-stars type.
[four] appended drawings 1 is the main circuit diagram that the compound six phase half-waves of five stem stems of the present utility model are controlled controlled rectifier entirely, and wherein the iron core (9) of rectifier transformer (B) is one five a stem stem iron core.
Accompanying drawing 2 is main circuit diagrams of the compound six phase half-wave half control controlled rectifiers of five stem stems of the present utility model.
[five] embodiment accompanying drawing 1 as can be known: five stem stem three-phase rectifier transformers (B), 3 elementary winding Y-connections, 6 secondary is with tapped winding to connect into double reverse-stars type, central point o, the o ' of positive and negative star links to each other with filter inductance (L) end respectively, the other end of filter inductance is a rectifier output negative terminal (7), connect 12 thyristor cathode terminals and be rectifier output negative terminal (8), the anode of 12 thyristors divides between system and 6 terminations of double reverse-stars type (a, b, c, a ', b ', c ') and 6 centre taps (1～6) and is connected.Carry out low-voltage six phase half-wave controlable electric current rectifications by 6 cross streams voltages in secondary 6 taps (1～6) by 6 thyristor VT1～VT6, filter inductance, at two outputs (7,8) output low dc voltage, an optimum power factor point and a pressure maximum output voltage when being zero, pilot angle are arranged.Carry out six phase half-wave controlable electric current rectifications of high voltage by 6 thyristor VT7～VT12, filter inductance by 6 cross streams voltages on secondary 6 terminations (a, b, c, a ', b ', c '), also, an optimum power factor point and a maximum output voltage when being zero, pilot angle are arranged also at two outputs (7,8) output dc voltage.Therefore, the compound controlled rectifier of six phase half-waves of accompanying drawing 1 is the high power factor complex type controlled rectifier that 2 optimum power factor points are arranged.It is low pressure six phase half-wave controlled rectifications and high pressure six half-wave controlled rectification inventive combination compound controlled whole device together mutually.
The controlled rectifier of accompanying drawing 1 is applied to the thyristor dc arc welder to be compared with the arc welder of same inventor in compound double reverse-stars type controlled rectification circuit application for a patent for invention number 201210061574.0 files, the utility model has been saved an interphase reactor, but the rectifier transformer iron core has increased by two stem stems, though it is many with iron, but lacked with copper, circuit structure has been simplified.Therefore also has advanced practicality.
Accompanying drawing 2 is as can be known: it is the rectifier that 6 in the accompanying drawing 16 controlled rectification devices that are connected on the secondary centre tap is changed into 6 uncontrollable rectifying devices.It not only can save one group of six phase half-wave circuits for triggering, and might select the novel kenotron lower than the pressure drop of controlled rectification device for use, helps reducing loss and improves rectification efficiency.The output voltage of accompanying drawing 2 controlled rectifiers can only be regulated between low pressure six phase half-wave rectification voltages and high pressure six phase half-wave rectification voltages, therefore, claims that it is six phase half-wave " half control " controlled rectifiers.
What should particularly point out makes on rectifier transformer copper cash and the iron material valency several times even tens of times closely during the last ten years, and thyristor, rectifier diode and trigger control circuit descend significantly.The prime cost of making controlled rectification equipment just is decided by the rated capacity of rectifier transformer.Device adopts module, and trigger control circuit adopts integrated circuit, and the ratio that they account in whole rectifying installation cost seldom.Therefore controlled rectifier of the present utility model is compared with existing controlled rectifier, under the amount of exports electric current situation identical with rated voltage, transformer rated capacity of the present utility model can reduce, power factor can improve, harmonic wave can reduce, therefore, it will replace the double reverse-stars type controlled rectifier of existing five stem stems, six phase half-waves and three stem stem band interphase reactors, produces very big economic benefit and social energy conservation and environmental protection benefit.
Claims (4)
1. compound six phase half-wave controlled rectifiers of stem stem, it is by 1 five stem stem three-phase rectifier transformer, 1 filter inductance, 12 rectifications or controlled rectification device and circuits for triggering thereof are formed, 6 rectifications or controlled rectification device connect into 1 low pressure six phase half-wave rectification or controlled rectification, 6 controlled rectification devices connect into 1 high pressure, six phase half-wave controlled rectifications in addition, it is characterized in that: the rectifier transformer iron core is five stem stems, elementary 3 winding Y-connections, secondary have 6 to be with tapped winding, 3 secondary winding connect into positive star by forward, 3 secondary winding are by oppositely connecting into anti-star in addition, end of 2 central points and filter inductances of positive and negative star winding is connected, another end of filter inductance is an output negative terminal of controlled rectifier, or anode; 6 centre taps are connected with the anode of 6 rectifications or controlled rectification device respectively, or negative electrode, 6 secondary winding terminations are connected with the anode of 6 controlled rectification devices respectively, or negative electrode, the negative electrode of 12 rectifications or controlled rectification device, or anode to be connected be another anode of rectifier output, or negative terminal.
2. the compound six phase half-wave controlled rectifiers of five stem stems according to claim 1, it is characterized in that: the device that is connected with 6 secondary centre taps is a rectifier diode, form low pressure six phase half-wave rectifications, the device that is connected with 6 secondary terminations is the controlled rectification device, forms high pressure six phase half-wave controlled rectifications.
3. the compound six phase half-wave controlled rectifiers of five stem stems according to claim 1, it is characterized in that: the device that is connected with 6 secondary centre taps is the controlled rectification device, form low pressure six phase half-wave controlled rectifications, the device that is connected with 6 secondary terminations is the controlled rectification device, forms high pressure six phase half-wave controlled rectifications.
4. an arc welder is characterized in that: comprise the compound six phase half-wave controlled rectifiers of five stem stems as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025886 CN203104314U (en) | 2013-01-18 | 2013-01-18 | Five stem complex six phase half wave controllable rectifier and arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025886 CN203104314U (en) | 2013-01-18 | 2013-01-18 | Five stem complex six phase half wave controllable rectifier and arc welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN203104314U true CN203104314U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320025886 Expired - Fee Related CN203104314U (en) | 2013-01-18 | 2013-01-18 | Five stem complex six phase half wave controllable rectifier and arc welding machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887997A (en) * | 2014-03-11 | 2014-06-25 | 龚秋声 | Five-stem double-six-phase semiwave controllable rectifying circuit |
| CN106026699A (en) * | 2016-07-19 | 2016-10-12 | 龚秋声 | Three-phase angle joint bridge type fully-controlled rectification circuit with three diodes |
| CN115276432A (en) * | 2022-09-28 | 2022-11-01 | 常州市天涯电源科技有限公司 | Double-reverse-star same-phase inverse-parallel rectifying device |
-
2013
- 2013-01-18 CN CN 201320025886 patent/CN203104314U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887997A (en) * | 2014-03-11 | 2014-06-25 | 龚秋声 | Five-stem double-six-phase semiwave controllable rectifying circuit |
| CN106026699A (en) * | 2016-07-19 | 2016-10-12 | 龚秋声 | Three-phase angle joint bridge type fully-controlled rectification circuit with three diodes |
| CN115276432A (en) * | 2022-09-28 | 2022-11-01 | 常州市天涯电源科技有限公司 | Double-reverse-star same-phase inverse-parallel rectifying device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160118 |
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| EXPY | Termination of patent right or utility model |