CN201726308U - Ultrahigh-power, high-voltage and variable-frequency soft-start power unit - Google Patents
Ultrahigh-power, high-voltage and variable-frequency soft-start power unit Download PDFInfo
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- CN201726308U CN201726308U CN2010202581660U CN201020258166U CN201726308U CN 201726308 U CN201726308 U CN 201726308U CN 2010202581660 U CN2010202581660 U CN 2010202581660U CN 201020258166 U CN201020258166 U CN 201020258166U CN 201726308 U CN201726308 U CN 201726308U
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- radiator
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Abstract
The utility model discloses an ultrahigh-power, high-voltage and variable-frequency soft-start power unit, which comprises a box, a radiator, an IGBT, a single-phase rectifier bridge, an electrolytic capacitor bank and a BUSBAR laminated bus bar. The radiator is arranged at the rear port of the box in a sideward direction, fins of the radiator are arranged in the vertical direction, the single-phase rectifier bridge, the IGBT and other power units are uniformly arranged on a substrate of the radiator facing the inside of the box, and the single-phase rectifier bridge, the IGBT and the electrolytic capacitor are coupled through the BUSBAR laminated bus bar. The utility model is designed for the ultrahigh-power high-voltage variable-frequency soft-start device, and the maximum power thereof can reach 20000kVA. Moreover, the utility model can effectively discharge heat generated by the IGBT out of the box, and greatly reduce effect of the distributed inductance of the bus bar.
Description
Technical field
The utility model belongs to power technique fields, is specifically related to a kind of super high power high-pressure frequency-conversion soft start power cell.
Background technology
When high-voltage motor starts; because of electrical network is caused very big rush of current; the running frequency that usually needs to adopt the mode of soft start to regulate motor; change rotating speed of motor; motor is progressively started to rated speed; thereby reduce of the impact of electric motor starting electric current effectively, motor and electrical network are all shielded electrical network.The core of high-pressure frequency-conversion soft start system is a power cell, and it is main components and parts of realizing high-voltage frequency conversion and speed-adjusting, also is the characteristic that solves the high-pressure frequency-conversion soft start, the key factor of volume.Therefore, in high-pressure frequency-conversion soft start power cell structure design, not only to consider its rationally distributed, compact conformation, also will consider its ventilation and heat, reliable etc. all multifactor.
In the existing power cell structure design, especially small-power unit, power device, wiring board, radiator etc. are integrated into one independently in the chest, radiator all adopts the form that keeps flat, power device is installed in the top of radiator, fin is installed in the bottom of radiator, and between device and box bottom, each cable or the copper bar of same circuit are independently to separate.This arrangement form can satisfy instructions for use to the low-power high-voltage frequency conversion system is basic, but to high-power, especially super high power high-pressure frequency-conversion system can't satisfy the heat radiation requirement, causes power device to damage and overtemperature easily.And the connected mode of this cable or copper bar can form very big distributed inductance, and the distributed inductance of busbar is the key factor that influences semiconductor device reliability service in the super high power high-pressure frequency-conversion soft start system.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the super high power high-pressure frequency-conversion soft start power cell that a kind of topology layout that provides is reasonable, radiating efficiency is high, the influence of busbar distributed inductance is little.
The utility model purpose is achieved in that a kind of super high power high-pressure frequency-conversion soft start power cell, comprise casing, radiator, single-phase rectification bridge, IGBT, electrochemical capacitor group and copper bar, it is characterized in that: the casing front console is provided with ventilation hole, fuse, copper bar import and copper bar outlet; The edge-on rear port that is installed in casing of radiator, fin is vertically arranged, single-phase rectification bridge, the even layout of IGBT are installed on the substrate of radiator in casing, and the electrochemical capacitor group is installed on the casing inner bottom plating, connect by copper bar between single-phase rectification bridge, IGBT and the electrochemical capacitor group.
Described cabinet end panel top is provided with at least one row's ventilation hole, and the middle part is equipped with 2-3 fuse, and the bottom is provided with 1-3 input copper bar import and the outlet of 1-2 output copper bar.
Described copper bar is a BUSBAR lamination busbar.
Compared with prior art, the utility model has the advantages that:
1, radiating efficiency height.Because the edge-on rear port that is installed in casing of radiator of the present utility model, fin is vertically arranged, form one and go up lower channel, after the heat of IGBT generation passes to fin by radiator base plate like this, according to the hot blast diffusion principle that makes progress, cooperate the ventilation hole that is provided with on the cabinet end panel again, and high-pressure frequency-conversion soft start integral heat sink system, can take away heat guaranteed output unit trouble free service effectively.
2, the influence of the distributed inductance of busbar is little.Because the connection between rectification circuit of the present utility model, filter circuit and the bridge inverter main circuit all adopts BUSBAR lamination busbar to connect, and BUSBAR lamination busbar has low inductance coefficent, can reduce the influence of busbar distributed inductance well, simultaneously, BUSBAR lamination busbar also has minimum impedance, pressure drop, can reduce the infringement of due to voltage spikes, prolong and improve the useful life of high power device components and parts.
Description of drawings
Fig. 1 is the utility model perspective view;
Fig. 2 is the A-A longitudinal cross-section structural representation of Fig. 1;
Fig. 3 is the B-B longitudinal cross-section structural representation of Fig. 1;
Fig. 4 is the C-C lateral cross section structural representation of Fig. 1;
Fig. 5 is the D-D lateral cross section structural representation of Fig. 1.
Among the figure, casing 1, radiator 2, ventilation hole 3, fuse 4, copper bar import 5, copper bar outlet 6, input copper bar 7, output copper bar 8, single-phase rectification bridge 9, single-phase rectification bridge copper bar 10, IGBT11, IGBT copper bar 12, electrochemical capacitor group 13, electrochemical capacitor group copper bar 14, cement resistor 15, filter capacitor 16, wire resistor 17, bolt 18.
Embodiment
Following examples are further described the utility model in conjunction with the accompanying drawings.
A kind of super high power high-pressure frequency-conversion of the utility model soft start power cell, three phase full bridge commutating zone filter circuit is adopted in its input, and the single-phase H type bridge inverter main circuit of being made up of IGBT is adopted in output.Three-phase bridge rectification circuit comprises three single-phase rectification bridges 9, and filter circuit comprises 13,18 cement resistors 15 of an electrochemical capacitor group and two filter capacitors 16, and single-phase H type bridge inverter main circuit comprises eight single tube IGBT11 and four wire resistors 17.
Embodiment of the present utility model is: be provided with 6 row's ventilation holes 3 on the front console top of casing 1, A, C two-phase input in A, B, the input of C three-phase respectively insert an inlet wire fuse 4, and the bottom has strip input copper bar import 5 and strip output copper bar outlet 6; The radiator 2 edge-on rear ports that are installed in casing 1, fin is vertically arranged, form one and go up lower channel, three single-phase rectification bridges 9, eight IGBT11, two filter capacitors 16 and four wire resistors 17 are installed on the substrate of radiator 2 in casing 1 by bolt 18 even layouts respectively; Electrochemical capacitor group 13 is fixedly mounted on the base plate in the casing 1 by support, and 18 cement resistors 15 are fixedly mounted on the top of electrochemical capacitor group 13 by support.Single-phase rectification bridge copper bar 10 is assemblied on the single-phase rectification bridge 9, IGBT copper bar 12 is assemblied on the IGBT11, electrochemical capacitor group copper bar 14 is assemblied on the electrochemical capacitor group 13, by bolt 18 single-phase rectification bridge copper bar 10 and IGBT copper bar 12 is connected with electrochemical capacitor group copper bar 14.Input copper bar 7, output copper bar 8, single-phase rectification bridge copper bar 10, IGBT copper bar 12 and electrochemical capacitor group copper 14 rows all adopt the BUSBAR lamination busbar with low inductance coefficent.A, B, C three-phase input copper bar 7 enter casing 1 by copper bar import 5 and are connected with the input of single-phase rectification bridge 9, and an end of the single-phase output copper bar 8 of V, U is connected with the output of IGBT11, and the other end passes casing 1 by copper outlet 6.
The utility model casing 1, radiator 2, input copper bar 7, output copper bar 8, single-phase rectification bridge 9, single-phase rectification bridge copper bar 10, IGBT11, IGBT copper bar 12, electrochemical capacitor group 13, electrochemical capacitor group copper bar 14, cement resistor 15, filter capacitor 16 and wire resistor 17 are independent flexible connection, with convenient debugging and maintenance.
The above is specific embodiments of the present utility model and know-why, and any other design of equivalence therewith is all in the utility model protection range.
Claims (3)
1. super high power high-pressure frequency-conversion soft start power cell, comprise casing (1), radiator (2), single-phase rectification bridge (9), IGBT (11), electrochemical capacitor group (13) and copper bar (10,12,14), it is characterized in that casing (1) front console is provided with ventilation hole (3), fuse (4), copper bar import (5) and copper bar outlet (6); The edge-on rear port that is installed in casing (1) of radiator (2), fin is vertically arranged; Single-phase rectification bridge (9), IGBT (11) evenly layout are installed on the substrate of radiator (2) in casing (1), electrochemical capacitor group (13) is installed on casing (1) inner bottom plating, connects by copper bar (10,12,14) between single-phase rectification bridge (9), IGBT (11) and the electrochemical capacitor group (13).
2. according to claims 1 described super high power high-pressure frequency-conversion soft start power cell, it is characterized in that said casing (1) end plates top is provided with at least one row's ventilation hole (3), the middle part is equipped with 2-3 fuse (4), and the bottom is provided with 1-3 input copper bar import (5) and 1-2 output copper bar outlet (6).
3. according to claims 1 described super high power high-pressure frequency-conversion soft start power cell, it is characterized in that said copper bar (10,12,14) is a BUSBAR lamination busbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202581660U CN201726308U (en) | 2010-07-14 | 2010-07-14 | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202581660U CN201726308U (en) | 2010-07-14 | 2010-07-14 | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201726308U true CN201726308U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202581660U Expired - Fee Related CN201726308U (en) | 2010-07-14 | 2010-07-14 | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201726308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786146A (en) * | 2017-12-06 | 2018-03-09 | 深圳市风发科技发展有限公司 | A kind of controller architecture of low power switch reluctance motor |
| US10128625B2 (en) | 2014-11-18 | 2018-11-13 | General Electric Company | Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector |
-
2010
- 2010-07-14 CN CN2010202581660U patent/CN201726308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10128625B2 (en) | 2014-11-18 | 2018-11-13 | General Electric Company | Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector |
| CN107786146A (en) * | 2017-12-06 | 2018-03-09 | 深圳市风发科技发展有限公司 | A kind of controller architecture of low power switch reluctance motor |
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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: DALI ELECTRIC XIANGYANG CO., LTD. Free format text: FORMER OWNER: XIANGFAN DALI ELECTRIC CO., LTD. Effective date: 20120209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120209 Address after: 441003 Hubei high tech Zone in Xiangyang City, HangYu Road No. 5 Patentee after: Big Pawer Electrical Technology Xiangyang Co., Ltd. Address before: 441003 Hubei high tech Zone in Xiangfan City, HangYu Road No. 5 Patentee before: Xiangfan Big Pawer Electrical Engineering Co., Ltd. |
|
| 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: 20110126 Termination date: 20180714 |