CN202004669U - Special three-phase rectifier bridge device for electric welding machine - Google Patents
Special three-phase rectifier bridge device for electric welding machine Download PDFInfo
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- CN202004669U CN202004669U CN201120058785XU CN201120058785U CN202004669U CN 202004669 U CN202004669 U CN 202004669U CN 201120058785X U CN201120058785X U CN 201120058785XU CN 201120058785 U CN201120058785 U CN 201120058785U CN 202004669 U CN202004669 U CN 202004669U
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- rectifier bridge
- phase rectifier
- phase
- welding machine
- welded
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Abstract
The utility model relates to a special three-phase rectifier bridge device for an electric welding machine, belonging to the technical field of rectifiers, aiming at providing the special three-phase rectifier bridge device for the electric welding machine, which has the advantages of small electric loss, low thermal resistivity and good heat dissipating effect. The special three-phase rectifier bridge device for the electric welding machine is technically characterized in that the device comprises three-phase rectifier bridge arms which consist of three pairs of silicon chips, the positive output ends and the negative output ends of homopolar silicon chips (3) in the three-phase rectifier bridge arms are respectively and serially welded onto a rectifier output positive electrode plate and a rectifier output negative electrode plate (4), the rectifier output positive electrode plate and the rectifier output negative electrode plate are respectively welded on a direct bond copper (DBC) ceramic substrate double-sided copper-clad laminate (5), and the DBC ceramic substrate double-sided copper-clad laminate is welded on a red copper bottom plate (6); and three-phase alternating-current input electrode plates (1) are respectively welded at the input ends of the three-phase rectifier bridge arms. The special three-phase rectifier bridge device for the electric welding machine has the advantages that the structure is compact and reasonable, electric loss during rectification is small and overcurrent and overvoltage capabilities are strong; and moreover, thermal conductivity is high, thermal resistivity is low, heat dissipating effect is good and the large-area rapid heat dissipation of a rectifier bridge can be realized.
Description
Technical field
The utility model relates to a kind of electric welding machine dedicated three-phase electric rectification Biodge device, belongs to the rectifier technical field.
Background technology
At present, domestic electric welding machine dedicated three-phase electric rectification Biodge device, major part all is that a plurality of rectification silicons are welded on the same copper electrode, and then is placed on the housings of aluminium or zinc, insulate with epoxy or common empire cloth.The rectifier bridge device of this structure exists electrical loss big, the thermal resistivity height, and defectives such as radiating effect difference particularly can not satisfy the requirement of the above rectifier bridge device of (AC) 2500V.
The utility model content
The purpose of this utility model is to provide a kind of electrical loss little, and thermal resistivity is low, the electric welding machine dedicated three-phase electric rectification Biodge device of good heat dissipation effect.
Its technical scheme is: a kind of electric welding machine dedicated three-phase electric rectification Biodge device, comprise the three phase rectifier brachium pontis that constitutes by three pairs of silicons, it is characterized in that: in the described three phase rectifier brachium pontis the positive and negative output of homopolarity silicon respectively parallel connection be welded on rectification output positive and negative electrode plate, rectification output positive and negative electrode plate is welded on respectively on the DBC ceramic substrate double face copper, and DBC ceramic substrate double face copper is welded on the red copper base plate; Three-phase alternating current input electrode sheet is welded on the input of three phase rectifier brachium pontis respectively.
Its technique effect is: with the positive and negative output of homopolarity rectifier cell silicon in the three phase rectifier brachium pontis respectively parallel connection be welded on the rectification output positive and negative electrode plate, it is compact conformation, reasonable not only, and electrical loss is little in the switching process, and overcurrent, voltage capability are strong; Simultaneously, rectification output positive and negative electrode plate is welded on the red copper base plate by DBC ceramic substrate double face copper respectively, its thermal conductivity height, and thermal resistivity is low, and good heat dissipation effect can realize rectifier bridge large tracts of land quick heat radiating; In addition, this device is easy to use, and stable performance is the ideal rectifier device of electric welding machine three-phase electricity rectifier bridge, particularly can satisfy the requirement of the above rectifier bridge device of (AC) 2500V.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the A of Fig. 1 is to view.
Embodiment
As shown in Figure 1, 2, a kind of electric welding machine dedicated three-phase electric rectification Biodge device, comprise the three phase rectifier brachium pontis that constitutes by three pairs of silicons, in the three phase rectifier brachium pontis the positive and negative output of homopolarity silicon 3 respectively parallel connection be welded on rectification output positive and negative electrode plate 4, rectification output positive and negative electrode plate is welded on respectively on the DBC ceramic substrate double face copper 5, and DBC ceramic substrate double face copper is welded on the red copper base plate 6; Three-phase alternating current input electrode sheet 1 is welded on the input of three phase rectifier brachium pontis respectively.
Three pairs of silicons of above-mentioned formation three phase rectifier brachium pontis connect by brace 2 between every pair.
Claims (2)
1. electric welding machine dedicated three-phase electric rectification Biodge device, comprise the three phase rectifier brachium pontis that constitutes by three pairs of silicons, it is characterized in that: in the described three phase rectifier brachium pontis the positive and negative output of homopolarity silicon (3) respectively parallel connection be welded on rectification output positive and negative electrode plate (4), rectification output positive and negative electrode plate is welded on respectively on the DBC ceramic substrate double face copper (5), and DBC ceramic substrate double face copper is welded on the red copper base plate (6); Three-phase alternating current input electrode sheet (1) is welded on the input of three phase rectifier brachium pontis respectively.
2. electric welding machine dedicated three-phase electric rectification Biodge device according to claim 1 is characterized in that: three pairs of silicons (3) of described formation three phase rectifier brachium pontis connect by brace (2) between every pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058785XU CN202004669U (en) | 2011-03-08 | 2011-03-08 | Special three-phase rectifier bridge device for electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058785XU CN202004669U (en) | 2011-03-08 | 2011-03-08 | Special three-phase rectifier bridge device for electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004669U true CN202004669U (en) | 2011-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120058785XU Expired - Fee Related CN202004669U (en) | 2011-03-08 | 2011-03-08 | Special three-phase rectifier bridge device for electric welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233820A (en) * | 2016-12-16 | 2018-06-29 | 上海电驱动股份有限公司 | A kind of BSG electric machine controllers integrated electrical module |
-
2011
- 2011-03-08 CN CN201120058785XU patent/CN202004669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233820A (en) * | 2016-12-16 | 2018-06-29 | 上海电驱动股份有限公司 | A kind of BSG electric machine controllers integrated electrical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huangshan Lvhua Electronic Co., Ltd. Assignor: Hu Guozhen Contract record no.: 2013340000090 Denomination of utility model: Special three-phase rectifier bridge device for electric welding machine Granted publication date: 20111005 License type: Exclusive License Record date: 20130620 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140308 |