CN108336911A - A kind of power module mounting device - Google Patents

A kind of power module mounting device Download PDF

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Publication number
CN108336911A
CN108336911A CN201810398212.8A CN201810398212A CN108336911A CN 108336911 A CN108336911 A CN 108336911A CN 201810398212 A CN201810398212 A CN 201810398212A CN 108336911 A CN108336911 A CN 108336911A
Authority
CN
China
Prior art keywords
power module
locating part
vertical support
horizontal shore
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810398212.8A
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Chinese (zh)
Other versions
CN108336911B (en
Inventor
黄清
付慧
戴康
连建阳
金雪
刘利国
邱德锋
姜田贵
孟佳
董晓峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nari Technology Co Ltd
Suzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
Nari Technology Co Ltd
Suzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nari Technology Co Ltd, Suzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd filed Critical Nari Technology Co Ltd
Priority to CN201810398212.8A priority Critical patent/CN108336911B/en
Publication of CN108336911A publication Critical patent/CN108336911A/en
Application granted granted Critical
Publication of CN108336911B publication Critical patent/CN108336911B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483Converters with outputs that each can have more than two voltages levels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/10Flexible AC transmission systems [FACTS]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

The application provides a kind of power module mounting device, and described device includes:Power cabinet has four support posts being mutually parallel;N roots the first vertical support beam is provided between two support posts, the first vertical support beam is perpendicular to the incline, it is provided between other two support posts and one-to-one the second vertical support of the N roots beam of the first vertical support of N roots beam, the first vertical support beam with and its corresponding second vertical support depth of beam it is equal, N >=2;It is provided with two groups of horizontal shores between every group of corresponding first vertical support beam and the second vertical support beam, for installing the power module, power module described in one row is installed, the horizontal shore is mutually parallel and perpendicular to the vertical support beam on horizontal shore described in every group.Using each embodiment in the application, power module can be effectively reduced, required floor space is installed, improve space availability ratio, while convenient for the dismounting and maintenance of power module.

Description

A kind of power module mounting device
Technical field
This application involves power electronic equipment applied technical field, more particularly to a kind of power module mounting device.
Background technology
Modularization multi-level converter (Modular Multilevel Converter, MMC) technology is by it in new energy Uniqueness in the fields such as source is grid-connected, the interconnection of island with power, unsynchronized networks, multi-terminal HVDC transmission and urban power distribution network increase-volume is excellent Gesture and adopted and applied by electric system more and more widely.The soft straight engineering of Shanghai Nanhui, the Nan'ao that operation has been put into are soft straight Engineering, the soft straight engineering in Zhoushan, the soft straight engineering in Xiamen, the soft straight engineering of western Shandong are all made of MMC topologys.
But in the above prior art, the mounting structure of the modularization multi-level converter is all made of valve tower structure, It takes up a large area, space availability ratio is relatively low, causes installation workload larger, also not readily transportable.
At least there are the following problems in the prior art:The mounting structure of the modularization multi-level converter is all made of valve tower Structure takes up a large area, and space availability ratio is relatively low, causes installation workload larger, also not readily transportable.
Invention content
The purpose of the embodiment of the present application is to provide a kind of power module mounting device, and institute is installed to effectively reduce power module The floor space needed improves space availability ratio, while convenient for the dismounting and maintenance of power module.
The embodiment of the present application provides what a kind of power module mounting device was realized in:
A kind of power module mounting device, described device include:
Power cabinet, include at least cuboid framework, the power cabinet at least have four support posts being mutually parallel, described four Four inclines of the root support post as the cuboid framework;
N roots the first vertical support beam is provided between two support posts, the first vertical support beam is perpendicular to the side The both ends of rib, the first vertical support beam are fixedly connected with two support posts respectively, in other two support posts Between be provided with one-to-one the second vertical support of the N roots beam of the first vertical support of N roots beam, in the support post On length direction, the first vertical support beam with and its corresponding second vertical support depth of beam it is equal, N >=2;
It is provided with two groups of horizontal shores, the water between every group of corresponding first vertical support beam and the second vertical support beam Flat supporting beam installs power module described in a row, the water for installing the power module on horizontal shore described in every group Flat supporting beam is mutually parallel and perpendicular to the vertical support beam.
In preferred embodiment, the power cabinet further includes front door and back door, the front door and the back door can close and It opens, the front door under closed state is parallel with the back door under closed state, and two groups of horizontal shores include the One group of horizontal shore and second group of horizontal shore, first group of horizontal shore is closer to the front door, and described second Group horizontal shore is corresponding closer to the back door, the power module installed on first group of horizontal shore closer to The front door, the power module installed on second group of horizontal shore is closer to the back door.
In preferred embodiment, M is provided with to the item perpendicular to the horizontal shore on first group of horizontal shore Shape locating part is moved for limiting the power module on the length direction of the horizontal shore, each pair of strip limit Spacing and the bottom width of the power module between the part of position match, M >=2;
The one end at strip locating part closer to the front door is provided with the first locating part, and the other end is provided with the second limit Part, the spacing between first locating part and second locating part on same root strip locating part and the power module Base length match, moved on the direction of the horizontal shore for limiting the power module, wherein First locating part, which is bolted, to be fixed on the strip locating part, can be dismantled from the strip locating part.
In preferred embodiment, M is provided with to the item perpendicular to the horizontal shore on second group of horizontal shore Shape locating part is moved for limiting the power module on the length direction of the horizontal shore, each pair of strip limit Spacing and the bottom width of the power module between the part of position match, M >=2;
The one end at strip locating part closer to the back door is provided with third locating part, and the other end is provided with the 4th limit Part, the spacing between the third locating part and the 4th locating part on same root strip locating part and the power module Base length match, moved on the direction of the horizontal shore for limiting the power module, wherein The third locating part, which is bolted, to be fixed on the strip locating part, can be dismantled from the strip locating part.
In preferred embodiment, the cross section of the strip locating part is L-type.
In preferred embodiment, electric insulation distance is kept between two rows of power modules on two groups of horizontal shores.
In preferred embodiment, electric insulation distance is kept between the power module.
In preferred embodiment, electric insulation distance is kept between the power module.
In preferred embodiment, the horizontal shore is made of insulating materials.
In preferred embodiment, the type of the power module includes:Modularization multi-level converter, static reacance occur Device.
Using a kind of power module mounting device provided by the embodiments of the present application, more work(can be installed by the power cabinet Power module is mounted on different height, can effectively reduce floor space, improves space availability ratio by rate module.Utilize each Beam and the cooperation of each locating part are supportted, can be effectively fixed by power module, it uses or transports convenient for integral installation.Meanwhile institute Stating the first locating part and the third locating part can dismantle, by first locating part dismantle, so that it may with will be close to it is described before The power module dismounting of door is simultaneously overhauled by front door taking-up, likewise, the third locating part is dismantled, so that it may with It will be close to the power module dismounting at the back door and take out by the back door overhauled, the dismounting of power module mutually not shadow It rings, maintenance easy to disassemble.Meanwhile horizontal shore insulation, electric insulation distance is kept between the power module, it can be with Improve electrical security.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments described in application, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of apparatus structure front view for power module mounting device that the application one embodiment provides;
Fig. 2 is a kind of apparatus structure vertical view for power module mounting device that the application one embodiment provides.
Specific implementation mode
The embodiment of the present application provides a kind of power module mounting device.
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common The every other embodiment that technical staff is obtained without creative efforts should all belong to the application protection Range.
Fig. 1 is a kind of a kind of apparatus structure front view of herein described embodiment of power module mounting device.Fig. 2 is this Apply for a kind of a kind of apparatus structure vertical view of embodiment of power module mounting device.
Specifically, described as shown in Figure 1, Figure 2, a kind of a kind of embodiment of power module mounting device provided by the present application can be with Including:
Power cabinet includes at least cuboid framework, and the power cabinet at least has four support posts 11 being mutually parallel, described Four inclines of four support posts 11 as the cuboid framework;
Be provided with the first vertical support of N roots beam 12 between two support posts 11, the first vertical support beam 12 perpendicular to The both ends of the incline, the first vertical support beam 12 are fixedly connected with two support posts 11 respectively, other two Be provided between root support post 11 with 12 one-to-one the second vertical support of N roots beam 13 of the first vertical support of N roots beam, On the length direction of the support post 11, the first vertical support beam 12 with and its corresponding second vertical support beam 13 Height it is equal, N >=2;
It is provided with two groups of horizontal shores, institute between every group of corresponding first vertical support beam 12 and the second vertical support beam 13 Horizontal shore is stated for installing the power module 101, power module described in a row is installed on horizontal shore described in every group 101, the horizontal shore is mutually parallel and perpendicular to the vertical support beam 12 and 13.
In this example, two groups of horizontal shores include first group of horizontal shore 21 and second group of horizontal shore 22, Every group has two horizontal shores.
In this example, the first vertical support beam and the second vertical support beam have no sequencing, first He Second is to distinguish the vertical support beam being arranged between different two support posts.If the power cabinet is horizontal positioned, Then the first vertical support beam and corresponding the second vertical support depth of beam are equal.
Wherein, the type of the power module 101 can include but is not limited to:Modularization multi-level converter, static nothing Work(generator.Certainly, in a particular application, it can be used for other power modules 101.
In this example, as shown in Fig. 2, the power cabinet 1 further includes front door 14 and back door 15, the front door 14 and the back door 15 can close and open, and the front door 14 under closed state is parallel with the back door 15 under closed state, described two groups Horizontal shore includes first group of horizontal shore 21 and second group of horizontal shore 22, and first group of horizontal shore 21 is more Close to the front door 14, second group of horizontal shore 22 is closer to the back door 15, corresponding, first group of level branch Closer to the front door 14, the power module installed on second group of horizontal shore more leans on for the power module installed on support beam The nearly back door 15.Wherein, the title at the front door and the back door be in order to distinguish two fan doors, specifically in implementation process, Front and back point is had no, the front door 14 can take out by front door 14 and pacify on first group of horizontal shore 21 when opening The power module 101 of dress.When the back door 15 is opened, second group of horizontal shore 22 can be taken out by the back door 15 The power module 101 of upper installation.
In this example, as shown in Figure 1 and Figure 2, M is provided with to perpendicular to the level on first group of horizontal shore 21 The strip locating part 3 of supporting beam 21 is moved up for limiting the power module 101 in the length direction of the horizontal shore 21 Dynamic, spacing and the bottom width of the power module 101 between each pair of strip locating part 3 match, M >=2;
The one end at the strip locating part 3 closer to the front door 14 is provided with the first locating part 31, and the other end is provided with second Locating part 32, spacing between first locating part 31 and second locating part 32 on same root strip locating part 3 with The base length of the power module 101 matches, for limiting the power module 101 perpendicular to the horizontal shore It is moved on 21 direction, wherein first locating part 31, which is bolted, to be fixed on the strip locating part 3, can be from It is dismantled on the strip locating part 3.
Wherein, as shown in Figure 1 and Figure 2, each pair of to refer to the every two strip locating parts 3 with identical spacing, each pair of strip Locating part 3 corresponds to a power module 101.
Wherein, described to match, can be theoretically equal, in specific implementation process, as long as the power can be made Module 101 cannot be moved in the length direction of the horizontal shore 21 and on the direction of the horizontal shore 21, Match described in can meeting.
After first locating part 31 is disassembled from the strip locating part 3, so that it may with by described first group The power module 101 installed on horizontal shore 21 is disassembled and is taken out by the front door.
In this example, M is provided on second group of horizontal shore 22 to the strip limit perpendicular to the horizontal shore 22 Part 3 is moved for limiting the power module 101 on the length direction of the horizontal shore 22, each pair of strip limit Spacing and the bottom width of the power module 101 between the part 3 of position match, M >=2;
The one end at the strip locating part 3 closer to the back door is provided with third locating part 33, and the other end is provided with the 4th limit Position part 34, the spacing between the third locating part 33 and the 4th locating part 34 on same root strip locating part 3 and institute The base length for stating power module 101 matches, for limiting the power module 101 perpendicular to the horizontal shore 22 Direction on move, wherein the third locating part 33, which is bolted, to be fixed on the strip locating part 3, can be from institute It states and is dismantled on strip locating part 3.
Wherein, as shown in Figure 1 and Figure 2, each pair of to refer to the every two strip locating parts 3 with identical spacing, each pair of strip Locating part 3 corresponds to a power module 101.
Wherein, described to match, can be theoretically equal, in specific implementation process, as long as the power can be made Module 101 cannot be moved in the length direction of the horizontal shore 22 and on the direction of the horizontal shore 22, Match described in can meeting.
After the third locating part 33 is disassembled from the strip locating part 3, so that it may with by described second group The power module 101 installed on horizontal shore 22 is disassembled and is taken out by the back door 15.
As can be seen that the power module 101 installed on two groups of horizontal shores 22 is independent of each other, especially in dismounting, Not fellow disciple can be passed through to be removed or placed into, will not be interfered.In addition, often the adjacent power module 101 of row's power module 101 it Between also stay it is at regular intervals, be convenient for power module 101 dismounting.
In this example, as shown in fig. 1, the cross section of the strip locating part 3 is L-type.
In this example, between two rows of power modules 101 on two groups of horizontal shores 21 and 22 keep electric insulation away from From.
It is corresponding, electric insulation distance is kept between the power module 101 installed on the horizontal shore 21.The water Electric insulation distance is kept between the power module 101 installed in flat supporting beam 22.
In this example, the horizontal shore 21 and 22 is made of insulating materials.
Using a kind of embodiment for power module mounting device that above-described embodiment provides, can be installed by the power cabinet Power module is mounted on different height, can effectively reduce floor space, improves space availability ratio by more power modules. Coordinated using each supporting beam and each locating part, can be effectively fixed by power module, it uses or transports convenient for integral installation. Meanwhile first locating part and the third locating part can be dismantled, and first locating part be dismantled, so that it may will be close to The power module at the front door is dismantled and is taken out by the front door and overhauled, likewise, the third locating part is dismantled, It can will be close to the power module dismounting at the back door and take out by the back door overhauled, the dismounting phase of power module It is independent of each other, maintenance easy to disassemble.Meanwhile horizontal shore insulation, keep between the power module electric insulation away from From electrical security can be improved.
Each embodiment in this specification is described by the way of progressive, and same or analogous part is mutual between each embodiment Mutually referring to each embodiment focuses on the differences from other embodiments.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's Spirit.

Claims (10)

1. a kind of power module mounting device, which is characterized in that described device includes:
Power cabinet, include at least cuboid framework, the power cabinet at least have four support posts being mutually parallel, described four Four inclines of the root support post as the cuboid framework;
N roots the first vertical support beam is provided between two support posts, the first vertical support beam is perpendicular to the side The both ends of rib, the first vertical support beam are fixedly connected with two support posts respectively, in other two support posts Between be provided with one-to-one the second vertical support of the N roots beam of the first vertical support of N roots beam, in the support post On length direction, the first vertical support beam with and its corresponding second vertical support depth of beam it is equal, N >=2;
It is provided with two groups of horizontal shores, the water between every group of corresponding first vertical support beam and the second vertical support beam Flat supporting beam installs power module described in a row, the water for installing the power module on horizontal shore described in every group Flat supporting beam is mutually parallel and perpendicular to the vertical support beam.
2. a kind of power module mounting device as described in claim 1, which is characterized in that the power cabinet further include front door and Back door, the front door and the back door can be closed and open, described under the front door and closed state under closed state Back door is parallel, two groups of horizontal shores include first group of horizontal shore and second group of horizontal shore, described first group Horizontal shore is closer to the front door, and second group of horizontal shore is corresponding closer to the back door, described first group The power module installed on horizontal shore is closer to the front door, the power module installed on second group of horizontal shore Closer to the back door.
3. a kind of power module mounting device as claimed in claim 2, which is characterized in that on first group of horizontal shore M is provided with to the strip locating part perpendicular to the horizontal shore, for limiting the power module described horizontally-supported It is moved on the length direction of beam, the bottom width phase of spacing and the power module between each pair of strip locating part Match, M >=2;
The one end at strip locating part closer to the front door is provided with the first locating part, and the other end is provided with the second limit Part, the spacing between first locating part and second locating part on same root strip locating part and the power module Base length match, moved on the direction of the horizontal shore for limiting the power module, wherein First locating part, which is bolted, to be fixed on the strip locating part, can be dismantled from the strip locating part.
4. a kind of power module mounting device as claimed in claim 2, which is characterized in that on second group of horizontal shore M is provided with to the strip locating part perpendicular to the horizontal shore, for limiting the power module described horizontally-supported It is moved on the length direction of beam, the bottom width phase of spacing and the power module between each pair of strip locating part Match, M >=2;
The one end at strip locating part closer to the back door is provided with third locating part, and the other end is provided with the 4th limit Part, the spacing between the third locating part and the 4th locating part on same root strip locating part and the power module Base length match, moved on the direction of the horizontal shore for limiting the power module, wherein The third locating part, which is bolted, to be fixed on the strip locating part, can be dismantled from the strip locating part.
5. a kind of power module mounting device as described in claim 3 or 4, which is characterized in that the cross of the strip locating part Section is L-type.
6. a kind of power module mounting device as described in claim 1, which is characterized in that on two groups of horizontal shores Electric insulation distance is kept between two rows of power modules.
7. a kind of power module mounting device as claimed in claim 3, which is characterized in that keep electricity between the power module Gas insulation distance.
8. a kind of power module mounting device as claimed in claim 4, which is characterized in that keep electricity between the power module Gas insulation distance.
9. a kind of power module mounting device as described in any one of Claims 1-4, which is characterized in that the level Supporting beam is made of insulating materials.
10. a kind of power module mounting device as described in claim 1, which is characterized in that the type packet of the power module It includes:Modularization multi-level converter, static reactive generator.
CN201810398212.8A 2018-04-28 2018-04-28 Power module installation device Active CN108336911B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810398212.8A CN108336911B (en) 2018-04-28 2018-04-28 Power module installation device

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Application Number Priority Date Filing Date Title
CN201810398212.8A CN108336911B (en) 2018-04-28 2018-04-28 Power module installation device

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CN108336911A true CN108336911A (en) 2018-07-27
CN108336911B CN108336911B (en) 2024-05-14

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353216A (en) * 1992-03-23 1994-10-04 Urie & Blanton Company, Inc. Inverter power source rack
US6142090A (en) * 1998-10-07 2000-11-07 Electric Boat Corporation Power converter arrangement for integration into a ship structure
CN203166776U (en) * 2013-01-06 2013-08-28 荣信电力电子股份有限公司 Power unit mounting frame of medium-voltage inverter system
CN205945497U (en) * 2016-08-16 2017-02-08 株洲变流技术国家工程研究中心有限公司 Power unit mounting structure and regulator cubicle
CN106688317A (en) * 2014-09-11 2017-05-17 泛达公司 Electronics cabinet
CN206533267U (en) * 2016-12-30 2017-09-29 西门子(上海)电气传动设备有限公司 Transducer power unit cabinet
CN208128141U (en) * 2018-04-28 2018-11-20 国网江苏省电力有限公司苏州供电分公司 A kind of power module mounting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353216A (en) * 1992-03-23 1994-10-04 Urie & Blanton Company, Inc. Inverter power source rack
US6142090A (en) * 1998-10-07 2000-11-07 Electric Boat Corporation Power converter arrangement for integration into a ship structure
CN203166776U (en) * 2013-01-06 2013-08-28 荣信电力电子股份有限公司 Power unit mounting frame of medium-voltage inverter system
CN106688317A (en) * 2014-09-11 2017-05-17 泛达公司 Electronics cabinet
CN205945497U (en) * 2016-08-16 2017-02-08 株洲变流技术国家工程研究中心有限公司 Power unit mounting structure and regulator cubicle
CN206533267U (en) * 2016-12-30 2017-09-29 西门子(上海)电气传动设备有限公司 Transducer power unit cabinet
CN208128141U (en) * 2018-04-28 2018-11-20 国网江苏省电力有限公司苏州供电分公司 A kind of power module mounting device

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