CN105406734A - Axial-type up-down structure rectifier used for silicon carbide - Google Patents
Axial-type up-down structure rectifier used for silicon carbide Download PDFInfo
- Publication number
- CN105406734A CN105406734A CN201510975420.6A CN201510975420A CN105406734A CN 105406734 A CN105406734 A CN 105406734A CN 201510975420 A CN201510975420 A CN 201510975420A CN 105406734 A CN105406734 A CN 105406734A
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- China
- Prior art keywords
- bus
- rectification
- rectifier
- water
- down structure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The invention discloses an axial-type up-down structure rectifier used for silicon carbide. The axial-type up-down structure rectifier is positioned in a rectification cabinet and comprises a plurality of rectification units positioned on the top and the bottom of the rectification cabinet; each rectification unit comprises an alternating current bus, a direct current bus, a plurality of rectification diodes, water-cooled heat sinks and spring compression joint structures, wherein the water-cooled heat sinks and the spring compression joint structures correspond to the rectification diodes; alternating current output after rectification is connected to the rectification diodes to carry out rectification through the alternating current bus; direct current output after the rectification is outwards output through the direct current bus; and the rectification diodes are symmetrically pasted on two sides of the direct current bus and are compressed with the spring compression joint structures through the water-cooled heat sinks. The axial-type up-down structure rectifier is of a structure that the anode and the cathode are vertically pulled open to be arranged, so that distance between anode air and cathode air is more than one metre, and therefore, the axial-type up-down structure rectifier can not be subjected to short circuit due to breakdown under high voltage; the rectification units adopt a two-sided axial-type press fitting way to guarantee that the direct current bus is free from other stresses and does not deform, and components are guaranteed to reliably operate under continuous and effective pressure; and the direct current bus and the alternating current bus adopt direct-arrangement shortest connection so as to lower alternating loss.
Description
Technical field
The invention belongs to power electronic equipment technical field, particularly a kind of carborundum shaft type up-down structure rectifier.
Background technology
The running current of current carborundum industry rectifier is large, and mostly adopt same contrary version also, it has following shortcoming:
1. complex structure is positive and negative is close to easy short circuit: be close to contrary version is also positive and negative owing to adopting, under big current high voltage, easily produce short circuit accident, cause bridge arm unit to damage even whole unit and burn, bring disaster to the safety of rectifier transformer.
2. connection bus becomes fan-shaped layout and long: connection bus is different in size, and impedance is uneven; And connection bus and longer (generally more than 2 meters), loss increases, and directly affects unit operation efficiency.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of carborundum shaft type up-down structure rectifier, for a kind of energy-saving safe version and press-fit and connection scheme.
To achieve these goals, the technical solution used in the present invention is:
A kind of carborundum shaft type up-down structure rectifier, be arranged in rectifier cabinet, comprise some rectification units being arranged in rectifier cabinet top and bottom, each rectification unit all comprises ac bus 1, DC bus 2, some rectifier diodes 3 and the water-filled radiator 5 corresponding with rectifier diode 3 and spring compression joint mechanism 4, the alternating current that transformer exports is connected to rectifier diode 3 by ac bus 1 and carries out rectification, the direct current exported after rectification is outwards exported by DC bus 2, described rectifier diode 3 is mounted on the both sides that the side of DC bus 2 or symmetry are mounted on DC bus 2, and compressed by water-filled radiator 5 and spring compression joint mechanism 4.
Described ac bus 1 is positioned in the middle part of rectifier cabinet, all equal with the fore-and-aft distance of each rectification unit.
Described DC bus 2 is divided into two parts, and a part is positive pole, and a part is negative pole, and the DC bus 2 wherein in rectifier cabinet top commutation unit is positive pole, and the DC bus 2 in rectifier cabinet bottom rectifying unit is negative pole, and between both positive and negative polarity, physical separation is greater than 1 meter.
Described DC bus 2 has along its length six scallops, six scallops are the distribution form that two row three arrange on the cross section of DC bus 2.
Described water-filled radiator 5 comprises main radiator 51 and electric conductor 52, main radiator 51 is conical cavity body, electric conductor 52 is rectangular structure, the end of the length direction of main radiator 51 is connected by clinohedral 55 with the front end of the length direction of electric conductor 52, main radiator 51 inside is provided with the water-cooling channel 53 of multiple concentric loop configuration, separated by annular wall between multiple water-cooling channel 3, each annular wall there is connected entrance, thus form the passage of annularly wall bending flowing, the gateway of water-cooling channel 53 is all on the front end face of main radiator 51 length direction, electric conductor 52 is provided with 6 connecting holes 54 along its thickness direction.
Compared with prior art, the invention has the beneficial effects as follows:
1. structural configuration is simple and safe: pull open arrangement up and down due to positive and negative, makes both positive and negative polarity air distance more than 1 meter, can not breakdown short circuit under ensure that high voltage.
2. DC bus is indeformable: adopt two-sided shaft-type pressed mode, ensure that DC bus not by other stress, indeformable, ensure that the reliability service of element under continuous and effective pressure.
3. connect simple effectively: with adopt in line to be the shortlyest connected between ac bus, greatly reduce A.C.power loss.
4. good heat dissipation effect: the radiator adopting water and band circular passage, makes radiating effect better, also solves the problem of water flowing corrosion.
Accompanying drawing explanation
Fig. 1 is the front view of rectifier of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the front view of the present invention's rectification unit.
Fig. 4 is the structural representation of water-filled radiator of the present invention.
Fig. 5 is the schematic diagram of Fig. 4.
Fig. 6 is the connection diagram of the present invention and transformer.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
As depicted in figs. 1 and 2, a kind of carborundum shaft type up-down structure rectifier, be arranged in rectifier cabinet, comprise some rectification units being arranged in rectifier cabinet top and bottom, the i.e. rectifier arm of a rectification unit, each rectification unit all comprises ac bus 1, DC bus 2, some rectifier diodes 3 and the water-filled radiator 5 corresponding with rectifier diode 3 and spring compression joint mechanism 4, the alternating current that transformer exports is connected to rectifier diode 3 by ac bus 1 and carries out rectification, and the direct current exported after rectification is outwards exported by DC bus 2.Wherein, described ac bus 1 is positioned in the middle part of rectifier cabinet, all equal with the fore-and-aft distance of each rectification unit, namely, ac bus 1 horizontally set in the middle part of rectifier cabinet, is connected in line connected mode one to one with each rectification unit, ac bus realizes in linely not bending; Can try one's best near arranging, reduce A.C.power loss, efficiency is improved.
DC bus 2 adopts 6063 alloy materials, it there are along its length six scallops, six scallops are the distribution form that two row three arrange on the cross section of DC bus 2, and pass into water in hole and realize water-cooled, existing enough intensity bears the pressure needed for rectifier diode 3; There are again enough water flowing flows, guarantee the heat-sinking capability needed for rectifier diode 3.
DC bus 2 is divided into two parts, a part is positive pole, a part is negative pole, DC bus 2 wherein in rectifier cabinet top commutation unit is positive pole, DC bus 2 in rectifier cabinet bottom rectifying unit is negative pole, between both positive and negative polarity, physical separation is greater than 1 meter, can not breakdown short circuit under ensure that high voltage.
As shown in Figure 3, in a rectification unit, each rectifier diode 3 symmetry is mounted on the both sides of DC bus 2, and compressed by water-filled radiator 5 and spring compression joint mechanism 4, realize a kind of axial symmetry press-fit approach, form a complete rectifier arm, rectifier arm can self-supporting or be fixed on the housing of rectifier cabinet by insulating part or antimagnetic material.The impedance of each rectifier diode 3 is the same, stressed the same, so just avoid the current stabilizing factor decline problem that the layout due to each rectifier diode 3 causes to a certain extent.
As shown in Figure 4 and Figure 5, water-filled radiator 5 of the present invention adopts 6063 alloy materials, and the hot investment casting of available mould is shaping.It comprises main radiator 51 and electric conductor 52, main radiator 51 is conical cavity body, electric conductor 52 is rectangular structure, the end of the length direction of main radiator 51 is connected by clinohedral 55 with the front end of the length direction of electric conductor 52, main radiator 51 inside is provided with the water-cooling channel 53 of multiple concentric loop configuration, separated by annular wall between multiple water-cooling channel 3, each annular wall there is connected entrance, thus form the passage of annularly wall bending flowing, the gateway of water-cooling channel 53 is all on the front end face of main radiator 51 length direction, electric conductor 52 is provided with 6 connecting holes 54 along its thickness direction.The water-cooling channel 53 of multiring structure can ensure good radiating effect, and its gateway, at top, facilitates the access and exit control of current.
As shown in Figure 6, in the present invention, transformer output AC electricity is connected with ac bus 1, through ac bus 1 to fast acting fuse, rectifier diode 3 is arrived again through water-filled radiator 5, after carrying out rectification by rectifier diode 3, export DC-to-DC bus 2, finally outwards export direct current by DC bus 2.
Claims (5)
1. a carborundum shaft type up-down structure rectifier, be arranged in rectifier cabinet, comprise some rectification units being arranged in rectifier cabinet top and bottom, each rectification unit all comprises ac bus (1), DC bus (2), some rectifier diodes (3) and the water-filled radiator (5) corresponding with rectifier diode (3) and spring compression joint mechanism (4), the alternating current that transformer exports is connected to rectifier diode (3) by ac bus (1) and carries out rectification, the direct current exported after rectification is outwards exported by DC bus (2), it is characterized in that, described rectifier diode (3) is mounted on the both sides that the side of DC bus (2) or symmetry are mounted on DC bus (2), and compressed by water-filled radiator (5) and spring compression joint mechanism (4).
2. carborundum shaft type up-down structure rectifier according to claim 1, it is characterized in that, described ac bus (1) is positioned in the middle part of rectifier cabinet, all equal with the fore-and-aft distance of each rectification unit.
3. carborundum shaft type up-down structure rectifier according to claim 1, it is characterized in that, described DC bus (2) is divided into two parts, a part is positive pole, a part is negative pole, DC bus (2) wherein in rectifier cabinet top commutation unit is positive pole, and the DC bus (2) in rectifier cabinet bottom rectifying unit is negative pole, and between both positive and negative polarity, physical separation is greater than 1 meter.
4. carborundum shaft type up-down structure rectifier according to claim 1, it is characterized in that, described DC bus (2) has along its length six scallops, six scallops are the distribution form that two row three arrange on the cross section of DC bus (2).
5. carborundum shaft type up-down structure rectifier according to claim 1, it is characterized in that, described water-filled radiator (5) comprises main radiator (51) and electric conductor (52), main radiator (51) is conical cavity body, electric conductor (52) is rectangular structure, the end of the length direction of main radiator (51) is connected by clinohedral (55) with the front end of the length direction of electric conductor (52), main radiator (51) inside is provided with the water-cooling channel (53) of multiple concentric loop configuration, multiple water-cooling channel is separated by annular wall between (3), each annular wall there is connected entrance, thus form the passage of annularly wall bending flowing, the gateway of water-cooling channel (53) is all on the front end face of main radiator (51) length direction, electric conductor (52) is provided with 6 connecting holes (54) along its thickness direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975420.6A CN105406734B (en) | 2015-12-23 | 2015-12-23 | A kind of silicon carbide shaft type up-down structure rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975420.6A CN105406734B (en) | 2015-12-23 | 2015-12-23 | A kind of silicon carbide shaft type up-down structure rectifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406734A true CN105406734A (en) | 2016-03-16 |
| CN105406734B CN105406734B (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510975420.6A Expired - Fee Related CN105406734B (en) | 2015-12-23 | 2015-12-23 | A kind of silicon carbide shaft type up-down structure rectifier |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485797Y (en) * | 2001-05-31 | 2002-04-10 | 贾继业 | Water cooling radiator for semiconductor |
| CN2850134Y (en) * | 2005-10-25 | 2006-12-20 | 西安中电变压整流器厂 | Rectifying bridge arm |
| CN101552536A (en) * | 2009-01-07 | 2009-10-07 | 西安中电变压整流器厂 | Valve side linearly coupled double-bridge shaft-type pressed rectifying device |
| CN201528263U (en) * | 2009-09-09 | 2010-07-14 | 西安中电变压整流器厂 | Porous water-cooling busbar of rectifying arm |
| US9153374B2 (en) * | 2013-06-28 | 2015-10-06 | Teco-Westinghouse Motor Company | Cooling arrangements for drive systems |
-
2015
- 2015-12-23 CN CN201510975420.6A patent/CN105406734B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485797Y (en) * | 2001-05-31 | 2002-04-10 | 贾继业 | Water cooling radiator for semiconductor |
| CN2850134Y (en) * | 2005-10-25 | 2006-12-20 | 西安中电变压整流器厂 | Rectifying bridge arm |
| CN101552536A (en) * | 2009-01-07 | 2009-10-07 | 西安中电变压整流器厂 | Valve side linearly coupled double-bridge shaft-type pressed rectifying device |
| CN201528263U (en) * | 2009-09-09 | 2010-07-14 | 西安中电变压整流器厂 | Porous water-cooling busbar of rectifying arm |
| US9153374B2 (en) * | 2013-06-28 | 2015-10-06 | Teco-Westinghouse Motor Company | Cooling arrangements for drive systems |
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| Publication number | Publication date |
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| CN105406734B (en) | 2019-01-11 |
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Granted publication date: 20190111 Termination date: 20211223 |