CN200956554Y - Power unit - Google Patents
Power unit Download PDFInfo
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- CN200956554Y CN200956554Y CN 200620123923 CN200620123923U CN200956554Y CN 200956554 Y CN200956554 Y CN 200956554Y CN 200620123923 CN200620123923 CN 200620123923 CN 200620123923 U CN200620123923 U CN 200620123923U CN 200956554 Y CN200956554 Y CN 200956554Y
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- power cell
- electrochemical capacitor
- copper bar
- copper
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Abstract
The utility model discloses a power unit, comprising a rectifying bridge composed of a casing and a diode and an inverse bridge and a radiator composed of electrolytic capacitors, a resistor and an insulated gate bipolar transistor (IGBT). The utility model is characterized in that the electrolytic capacitors in the device are divided into two groups, each group of electrolytic capacitors are connected into series-parallel structural elements by a copper subbar, and the corresponding two groups of electrolytic capacitors are connected in parallel and fixed together; other electronic parts and components of the rectifying bridge and the inverse bridge are mounted on the metal bottom-board of the radiator, and installed relatively to the two groups of electrolytic capacitors, the electrolytic capacitors and the control circuit of the rectifying bridge and the inverse bridge form an electrical connection through a positive and a negative DC bus bar; the other side of the metal bottom-board of the radiator is provided with radiating fins. The device is compact in structure, small in size, easy to manufacture and maintain, and the inductance is small; the utility model is also capable to further improve the working reliability of the power unit to settle the deficiency of the structure of existing products such as big size, complicated installation, poor anti-interference performance, big inductance and other problems.
Description
Technical field
The utility model relates to a kind of critical piece of frequency converter, exactly, relates to a kind of layout structure design of power cell of frequency converter; The structure-design technique field that belongs to power electronic equipment.
Background technology
Frequency converter is to utilize the effect that turns on and off of semiconductor power device power frequency supply to be transformed to the transformation of electrical energy device of frequency adjustable.This device at first is transformed to direct current DC to the alternating current of power supply, direct current DC is transformed to the alternating current AC of changeable frequency again.Develop rapidly along with microelectronics and power electronic technology, product as the 21 century Development of Power Electronic Technology, frequency converter has obtained in many fields of national economy (industries such as for example thermal power generation, oil, chemical industry, mine, metallurgy, water supply) using widely, and is bringing into play more and more important effect.
Referring to Fig. 1, introduce the electrical schematic diagram and the main building block of the core apparatus-power cell of frequency converter: the power input R of power cell, S, T connects the three-phase output voltage of transformer secondary coil respectively, be the big electric capacity charging of DC link then through the three-phase diode full-wave rectification, the direct voltage on these electric capacity then offers the individual event H shape bridge inverter main circuit of being made up of four advanced technology and the insulated gate bipolar transistor IGBT (Insulated GateBipolar Transistor) that is easy to control and is converted to the output of the AC energy of frequency adjustable as power cell.Because frequency converter mainly is made up of a plurality of power cells of single power cell or series connection, promptly power cell is the core component of frequency converter, and therefore, the volume of power cell directly influences the volume of whole frequency converter.Owing to be subjected to forming the restriction that various existing components and parts volume is big, capacity is little of power cell, so the spatial volume of power cell is also all bigger usually, the power cell volume of especially high-power (more than the 3200KW) is just bigger.Like this, just there are number of drawbacks such as volume is big, installation is complicated, anti-interference is poor, inductance is big in the power cell that designs, makes according to prior art, and production, operation and the maintenance of frequency converter all caused certain influence and difficulty.Therefore, how to solve the various technical problems that power cell brings because of its volume is excessive, just become the frequency converter new problem of person skilled urgent need solution in the industry.
The utility model content
In view of this, the purpose of this utility model provides a kind of power cell of novel structure, this apparatus structure compactness, volume is small and exquisite, produce easy to maintenance, inductance is little, can also further improve the functional reliability of power cell, thereby solves the deficiency of existing product structural design: variety of issues such as volume is big, installation is complicated, anti-interference is poor, inductance is big.
In order to achieve the above object, the utility model provides a kind of power cell, comprising: inverter bridge and radiator that the rectifier bridge that casing, diode are formed, electrochemical capacitor, resistance, insulated gate bipolar transistor IGBT are formed; It is characterized in that: this device is divided into two groups with electrochemical capacitor, and every group of electrochemical capacitor connected into the series parallel structure parts by copper bar, again with the parallel connection of two opposite groups electrochemical capacitor, tighten together; Other electronic devices and components that comprise rectifier bridge, inverter bridge are packed on the radiator metallic plate, and with these two groups of relative installations of electrochemical capacitor, electrochemical capacitor constitutes by positive and negative two DC master rows and rectifier bridge and inverter bridge control circuit and is electrically connected; Another example of this radiator metal base plate is a fin.
Be provided with the insulation board of making, prevent short circuit with insulating material between described positive and negative two DC master rows.
The parallel connection of described two groups of electrochemical capacitors, fastening be to connect copper bars and a plurality of to be connected copper rod spiral shell solid existing with two, spiral shell is solid respectively connects on the copper bars at two for an end of described positive and negative two DC master rows, the other end connects rectifier bridge and inverter bridge control circuit.
Described copper bar, connection copper bar, DC master row are with zinc-plated copper plate punch forming, and described connection copper rod is the zinc-plated red copper pole that two ends are provided with internal thread hole.
Described copper bar is the rectangular flat that is provided with a plurality of through holes of lining up triplex row, and wherein up and down two holes of working are used for being connected with the output of each electrochemical capacitor, and intermediate throughholes is used to pass the bolt that spiral shell is solidly connected the copper rod, with two groups of electrochemical capacitor parallel connections, fasten as one.
Described connection copper bar is that both sides have flanging " channel-section steel " shape member, be respectively equipped with a plurality of through holes of being connected with every group of electrochemical capacitor output of being used on two flangings, a flanging that connects the copper bar intermediate throughholes that wherein is positioned at downside directly is solidly connected with a direct current busbar spiral shell, another connection copper bar centre that is positioned at upside is provided with long narrow strip through hole, be used to pass above-mentioned DC master row, this connection copper bar is provided with and the solid through hole of another DC master row spiral shell in long narrow strip through hole one side.
Described two groups of electrochemical capacitors are placed on the casing below, and the radiator that rectifier bridge and inverter bridge control circuit are installed relatively then is positioned at casing top.
The utility model is a kind of power cell of structure innovation, its technical characterstic is to adopt big, the easy first and difficult later design principle in earlier little back: whole power cell device is divided into casing and radiator two big assemblies earlier, respectively after the assembling, synthesize one again, so just general structure is resolved into some parts and install respectively, to realize big, the easy first and difficult later design in earlier little back, assembling thinking.Wherein box assembly mainly is two groups of electrochemical capacitors (referring to Fig. 3) relative, that be installed in parallel, it is earlier every group of electric capacity to be packed on the negative, then use the output of solid each electric capacity of copper bar spiral shell, form series parallel structure (referring to Fig. 2), adopt connection copper bar, connection copper rod and pull bar that two groups of electric capacity parallel connections, spiral shells are solidified as a whole (referring to Fig. 3) again, then two groups of electric capacity integral installations are gone into casing downside (referring to Fig. 4).This mounting means can reduce inductance, reduced volume under the prerequisite that guarantees insulation distance, install very convenient.Mainly after independent earlier installation of forming by electronic device such as IGBT inverter bridge, rectifier bridge, resistance and radiator of heat sink assembly (referring to Fig. 5), by positive and negative two DC master rows above-mentioned two assemblies are integrated (referring to Fig. 6) again, thereby the compact overall structure, volume-diminished, production installation and maintenance that reach power cell are convenient, inductance is little, reliable operation, purpose that antijamming capability is strong.
Description of drawings
Fig. 1 is the electrical schematic diagram of power cell.
Fig. 2 is one group of (promptly monolateral) electric capacity combination structural representation in the utility model power cell.
Fig. 3 (A), (B) are respectively the forward and backward structural representations of two groups of electric capacity combination in parallel relatively in the utility model power cell.
Fig. 4 (A), (B) are respectively C-C sectional view and the vertical views after two groups of electric capacity in Fig. 3 the utility model power cell make up relatively side by side.
Fig. 5 is the box assembly figure of the utility model power cell
Fig. 6 (A), (B), (C) are respectively C-C side sectional plan view, vertical view and the stereograms of the heat sink assembly of the utility model power cell.
Fig. 7 (A), (B), (C) are respectively stereogram, cutaway view and the partial enlarged drawings of the utility model power cell.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, structure of the present utility model and mounting means are described in further detail below in conjunction with each drawings and Examples.
The utility model is a kind of power cell, and this device characteristic is: its electrochemical capacitor is divided into two groups, and every group of electrochemical capacitor connected into the connection in series-parallel member by copper bar, again with the parallel connection of two opposite groups electrochemical capacitor, tighten together; Other components and parts of control circuit that comprise rectifier bridge, inverter bridge and resistance are packed on the radiator metallic plate, and with these two groups of relative installations of electrochemical capacitor, electrochemical capacitor constitutes by positive and negative two DC master rows and rectifier bridge and inverter bridge control circuit and is electrically connected; The opposite side of this radiator metal base plate is a fin.
Referring to Fig. 2, every group of electrochemical capacitor of the utility model embodiment formed by adopting traditional approach to be packed in the copper bar 3 that electric capacity installs a plurality of electrochemical capacitors 2 on the base plate 1 (illustrated embodiment is 5 of every rows, 15 of three rows) and be positioned at electrochemical capacitor 2 front ends totally.Wherein copper bar 3 is provided with a plurality of through holes of lining up triplex row, two each 5 through hole of row are used for connecting into the connection in series-parallel member with the output of five electrochemical capacitors 2 up and down, middle 4 through holes are used to pass the bolt (referring to Fig. 3 (A) and Fig. 4 (A)) that spiral shell is solidly connected copper rod 5, with two groups of electrochemical capacitor parallel connections, fasten as one.This mounting structure is simple, easy accessibility.
Referring to Fig. 3 and Fig. 4, introduce the structure that two groups of electrochemical capacitors of embodiment are in parallel relatively, be fastenedly connected, and they be by up and down two connect copper bar 4, a plurality of connection copper rod 5 and pull bars 6 carry out spiral shell solid it is combined into as a whole.Wherein connecting copper bar 4 is that both sides have flanging " channel-section steel " shape member, is respectively equipped with 5 through holes on two flangings, is used for being connected with every group of 5 electrochemical capacitor outputs.A flanging that connects copper bar 4 intermediate throughholes that is positioned at downside directly is solidly connected with a direct current busbar 7 spiral shells, another connection copper bar 4 centres that are positioned at upside are provided with the long narrow strip through hole (this bore periphery should be provided with the insulating barrier that prevents short circuit) that is used to pass DC master row 7, and are provided with and the solid through hole (not shown) of another DC master row 9 spiral shells in long narrow strip through hole one side.And between positive and negative two DC master rows 7,9 of drawing, insulation board 8 is set from the centre, so that positive and negative two DC master rows 7,9 are separated, prevent short circuit.The benefit of doing like this is that compact conformation, volume are little, easy for installation, inductance is little, antijamming capability is strong, can also guarantee insulation distance.The other end of two DC master rows 7,9 then is electrically connected (referring to Fig. 6) with rectifier bridge and inverter bridge control circuit formation.In addition, use metal pull bar 6 that installation base plate 1 spiral shell of two groups of electric capacity is solidly fixed.Wherein copper bar 3, the three-phase R, the S that connect copper bar 4, DC master row 7,9 and this power cell, T input copper bar 16,17,18 and output copper bar 14,15 all are that connecting copper rod 5 is zinc-plated red copper poles that two ends are provided with internal thread hole with the good zinc-plated copper plate punch forming of electric conductivity.
Referring to Fig. 5, two groups of electrochemical capacitor integral installations among the utility model embodiment are at the casing downside, and its top is used to place heat sink assembly.Can see: this mounting structure is very compact, and this partial installation mode is convenient to arrange and tissue is produced.
Referring to Fig. 6 and Fig. 7, the structure of introducing heat sink assembly form and with box assembly two parts docking structure: other components and parts of control circuit such as IGBT device 10, rectifier diode 12 and resistance 13 that will form inverter bridge earlier are packed on the metallic plate of radiator 11, and the opposite side of this radiator metallic plate is a fin.An end of positive and negative two DC master rows 7,9 is constituted with rectifier bridge and inverter bridge control circuit again and is electrically connected, then spiral shell is solid on two connection copper bars 4 up and down respectively for the other end of two DC master rows 7,9.Just be packed in control circuit and two groups of electrochemical capacitors, 2 relative installing and fixing on the radiator metallic plate, that form by components and parts such as rectifier bridge, inverter bridge and resistance.These positive and negative two DC master rows 7,9 just can offer the direct voltage of storage on the electrochemical capacitor 2 alternating current that individual event H shape bridge inverter main circuit that IGBT forms is converted to frequency adjustable (the 8th, prevent the insulation board of both short circuits) like this, and outwards power by the output copper bar 14,15 of power cell.
The utility model is manufactured experimently out the embodiment model machine, and has carried out operation test, and result of the test is successful, has realized goal of the invention.
Claims (8)
1, a kind of power cell comprises: inverter bridge and radiator that the rectifier bridge that casing, diode are formed, electrochemical capacitor, resistance, insulated gate bipolar transistor IGBT are formed; It is characterized in that: this device is divided into two groups with electrochemical capacitor, and every group of electrochemical capacitor connected into the series parallel structure parts by copper bar, again with the parallel connection of two opposite groups electrochemical capacitor, tighten together; Other electronic devices and components that comprise rectifier bridge, inverter bridge are packed on the radiator metallic plate, and with these two groups of relative installations of electrochemical capacitor, electrochemical capacitor constitutes by positive and negative two DC master rows and rectifier bridge and inverter bridge control circuit and is electrically connected; The opposite side of this radiator metal base plate is a fin.
2, power cell according to claim 1 is characterized in that: be provided with the insulation board of making, prevent short circuit with insulating material between described positive and negative two DC master rows.
3, power cell according to claim 1, it is characterized in that: the parallel connection of described two groups of electrochemical capacitors, fastening be to connect copper bars and a plurality of to be connected copper rod spiral shell solid existing with two, one end of described positive and negative two DC master rows spiral shell respectively is solid on two connection copper bars, and the other end connects rectifier bridge and inverter bridge control circuit.
4, power cell according to claim 1 is characterized in that: described copper bar is with zinc-plated copper plate punch forming.
5, power cell according to claim 3 is characterized in that: described connection copper bar and DC master row are with zinc-plated copper plate punch forming, and described connection copper rod is the zinc-plated red copper pole that two ends are provided with internal thread hole.
6, power cell according to claim 4, it is characterized in that: described copper bar is the rectangular flat that is provided with a plurality of through holes of lining up triplex row, wherein up and down two holes of working are used for being connected with the output of each electrochemical capacitor, intermediate throughholes is used to pass the bolt that spiral shell is solidly connected the copper rod, with two groups of electrochemical capacitor parallel connections, fasten as one.
7, power cell according to claim 5, it is characterized in that: described connection copper bar is that both sides have flanging " channel-section steel " shape member, be respectively equipped with a plurality of through holes of being connected with every group of electrochemical capacitor output of being used on two flangings, a flanging that connects the copper bar intermediate throughholes that wherein is positioned at downside directly is solidly connected with a direct current busbar spiral shell, another connection copper bar centre that is positioned at upside is provided with long narrow strip through hole, be used to pass above-mentioned DC master row, this connection copper bar is provided with and the solid through hole of another DC master row spiral shell in long narrow strip through hole one side.
8, power cell according to claim 1 is characterized in that: described two groups of electrochemical capacitors are placed on the casing below, and the radiator that rectifier bridge and inverter bridge control circuit are installed relatively then is positioned at casing top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123923 CN200956554Y (en) | 2006-07-13 | 2006-07-13 | Power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123923 CN200956554Y (en) | 2006-07-13 | 2006-07-13 | Power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956554Y true CN200956554Y (en) | 2007-10-03 |
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ID=38775136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123923 Expired - Lifetime CN200956554Y (en) | 2006-07-13 | 2006-07-13 | Power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956554Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478224B (en) * | 2008-09-26 | 2011-05-18 | 中国科学院近代物理研究所 | A type bus bar stacking method for large power pulse switch power supply |
| CN102340135A (en) * | 2010-07-19 | 2012-02-01 | 深圳市汇川技术股份有限公司 | Overvoltage protection structure of electric vehicle driver and electric vehicle |
| CN103227572A (en) * | 2013-05-22 | 2013-07-31 | 株洲南车时代电气股份有限公司 | Subway auxiliary converter IGBT (insulated gate bipolar transistor) contravariant module |
| CN103683851A (en) * | 2013-12-02 | 2014-03-26 | 河南理工大学 | Power converter direct-current busbar |
| 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 |
| CN111211665A (en) * | 2018-11-19 | 2020-05-29 | 无锡研奥电子科技有限公司 | Composite busbar |
| US10707768B2 (en) | 2013-05-22 | 2020-07-07 | Abb Schweiz Ag | Power module for medium and high-voltage frequency converter and frequency converter comprising same |
-
2006
- 2006-07-13 CN CN 200620123923 patent/CN200956554Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478224B (en) * | 2008-09-26 | 2011-05-18 | 中国科学院近代物理研究所 | A type bus bar stacking method for large power pulse switch power supply |
| CN102340135A (en) * | 2010-07-19 | 2012-02-01 | 深圳市汇川技术股份有限公司 | Overvoltage protection structure of electric vehicle driver and electric vehicle |
| CN103227572A (en) * | 2013-05-22 | 2013-07-31 | 株洲南车时代电气股份有限公司 | Subway auxiliary converter IGBT (insulated gate bipolar transistor) contravariant module |
| US10707768B2 (en) | 2013-05-22 | 2020-07-07 | Abb Schweiz Ag | Power module for medium and high-voltage frequency converter and frequency converter comprising same |
| CN103683851A (en) * | 2013-12-02 | 2014-03-26 | 河南理工大学 | Power converter direct-current busbar |
| 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 |
| CN111211665A (en) * | 2018-11-19 | 2020-05-29 | 无锡研奥电子科技有限公司 | Composite busbar |
| CN111211665B (en) * | 2018-11-19 | 2020-11-27 | 无锡研奥电子科技有限公司 | Composite busbar |
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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: BEIJING BILLION OF HONG SHENG TECHNOLOGY CO. Free format text: FORMER OWNER: BEIJING ZHONG YI HEKANG ELECTRIC TECHNOLOGY CO., LTD. Effective date: 20080926 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080926 Address after: Middle and small technology enterprise base of No. 19, West ancient street, Beijing, Shijingshan District, China: 100043 Patentee after: Beijing Hiconics Yisheng Technology Co., Ltd. Address before: 11 floor, International Building, No. 1, East Road, Haidian District, Beijing, China: 100085 Patentee before: Beijing Zhongyi Hekang Electric Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING HEKANG FREQUENCY CONVERSION SCIENCE CO., L Free format text: FORMER NAME: BEIJING BILLION OF HONG SHENG TECHNOLOGY CO. |
|
| CP03 | Change of name, title or address |
Address after: Middle and small technology enterprise base of No. 19, West ancient street, Beijing, Shijingshan District, China: 100043 Patentee after: Beijing Hiconics Drive Technology Co.,Ltd. Address before: Middle and small technology enterprise base of No. 19, West ancient street, Beijing, Shijingshan District, China: 100043 Patentee before: Beijing Hiconics Yisheng Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20091111 Pledge (preservation): Pledge |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20100528 Granted publication date: 20071003 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Beijing Hiconics Drive Technology Co.,Ltd. Registration number: 2009110000641 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071003 |
|
| EXPY | Termination of patent right or utility model |