CN104734465B - Power Cabinet and Converter - Google Patents
Power Cabinet and Converter Download PDFInfo
- Publication number
- CN104734465B CN104734465B CN201510088908.7A CN201510088908A CN104734465B CN 104734465 B CN104734465 B CN 104734465B CN 201510088908 A CN201510088908 A CN 201510088908A CN 104734465 B CN104734465 B CN 104734465B
- Authority
- CN
- China
- Prior art keywords
- power
- cabinet
- bus interface
- power model
- water
- 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.)
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Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 18
- 239000002826 coolant Substances 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
-
- 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 provides a power cabinet and a converter, wherein the power cabinet comprises: the power module is electrically connected with the controller and arranged in the cabinet body; the cabinet body is provided with an alternating current bus interface and a direct current bus interface, and the power module is electrically connected with the alternating current bus interface and the direct current bus interface respectively and is used for being electrically connected with a peripheral system or other power cabinets through the alternating current bus interface or the direct current bus interface. The power module has independent functions and does not depend on a peripheral system, so that the workload of the design of the peripheral system is reduced, the development period is shortened, and the compatibility of various power modules can be realized.
Description
Technical field
The present invention relates to electric and electronic technical field, more particularly to a kind of power cabinet and current transformer.
Background technology
Wind generating technology has obtained quick development in China in recent years, and the capacity of separate unit blower fan also becomes increasingly
Greatly, matched Converter Capacity is also accordingly lifted and constantly developed towards the direction of high power density.
The core cell of current transformer is to be based on insulated gate bipolar transistor (IGBT, Insulated Gate Bipolar
Transistor)/integrated gate commutated thyristor (IGCT, Intergrated Gate Commutated Thyristor) is set
The power model of meter, its peripheral system includes the filter circuit around power model making, protection circuit, bus-bar system, radiating
The structures such as system, control system and cabinet.Current current transformer, mainly sets by unit of power model to carry out peripheral system
Meter, design efforts would is big, and the cycle is long, and the interface relationship between power model and peripheral system is complicated, and different manufacturers are given birth to
The power model of production is difficult to unification on interface, the selection unification of power model is caused, so as to determine current transformer design side
To single.
Timing is installed with, it is necessary to from new module carrying out current transformer liter, and according to the requirement of new module, is redesigned outer
Peripheral systems, equivalent to a current transformer design is done again, the construction cycle is long.
The content of the invention
It is an object of the invention to provide a kind of functional independence, independent of peripheral system, and multiple power mould can be realized
Block compatible power cabinet and current transformer, big to solve peripheral system design efforts would, the construction cycle is long, and module poor compatibility is asked
Topic.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of power cabinet, including：Cabinet, power model and controller, the power model and controller electrical connection,
And it is arranged in the cabinet；
Ac bus interface and dc bus interface are provided with the cabinet, the power model is exchanged with described respectively
Bus interface and dc bus interface electrical connection, to by the ac bus interface or the dc bus interface with
Peripheral system is electrically connected.
More preferably, the ac bus interface includes rectification side ac bus interface and/or inverter side ac bus interface.
More preferably, the first guide rail is provided with the cabinet inwall, the power model is arranged on first guide rail,
And can be slided on first guide rail.
More preferably, the second guide rail is provided with the cabinet inwall, the controller is arranged on second guide rail, and
Slided on second guide rail.
More preferably, the multiple that the power model is single-phase power module and quantity is three, or be three phase power mould
Block.
More preferably, the power cabinet also includes water-cooling system, and the water-cooling system includes water inlet pipe and outlet pipe；
Cooled plate of the water inlet pipe respectively with outside cooling medium source and the power model is connected, the outlet pipe with
The cooled plate connection of the power model；
Cooling medium flows into the cooled plate of the power model by the water inlet pipe, and is discharged by the outlet pipe,
To be cooled down to the power model.
More preferably, the power cabinet also includes heat-exchange system in cabinet, and heat-exchange system includes blower fan in the cabinet and water wind is changed
Hot device；
The water wind heat exchanger is connected with the water inlet pipe and the outlet pipe respectively, to make cooling medium in the water
Circulated in wind heat exchanger；
The blower fan blows air by the water wind heat exchanger, and is flowed to the work(after water wind heat exchanger cooling
Rate module, to be cooled down to the power model.
More preferably, the cabinet, which is internally provided with homogenating plate, the homogenating plate, is provided with equal air holes, the equal air holes
Quantity is identical with the quantity of the power model, and is corresponded with the power model；Each institute is flowed through to adjust
State the air mass flow of power model.
More preferably, the power cabinet, which also includes heat-exchange system in heat-exchange system in cabinet, the cabinet, includes blower fan, the blower fan
Air is blowed into the power model, to be cooled down to the power model.
More preferably, the cabinet, which is internally provided with homogenating plate, the homogenating plate, is provided with equal air holes, the equal air holes
Quantity is identical with the quantity of the power model, and is corresponded with the power model；The homogenating plate is to adjust stream
Air mass flow through power model each described.
A kind of current transformer, includes the power cabinet of peripheral system and any of the above technical characteristic；
The power cabinet is electrically connected by the ac bus interface or the dc bus interface with the peripheral system.
More preferably, the quantity of the power cabinet is two or more；
Described two or more than two power cabinets by the ac bus interface or the dc bus interface successively
Series connection.
More preferably, the power cabinet includes water-cooling system, the water-cooling systems of described two or more than two power cabinets according to
Secondary connection.
The beneficial effects of the invention are as follows：Make power model functional independence, independent of peripheral system, so as to reduce periphery
The workload of system design, shortens the construction cycle, and can realize the compatibility of multiple power module.
Brief description of the drawings
Fig. 1 is the power cabinet structural representation in embodiment one；
Fig. 2 is the power cabinet structural representation that power model is three phase power module；
Fig. 3 is the first guide rail schematic diagram in the power cabinet in embodiment one；
Fig. 4 be embodiment two in power cabinet water-cooling system schematic diagram；
Fig. 5 is the heat-exchange system schematic diagram in the power cabinet in embodiment two；
Fig. 6 is the homogenating plate schematic diagram in Fig. 5；
Fig. 7 is the heat-exchange system schematic diagram in the power cabinet in embodiment three；
Fig. 8 is the converter structure schematic diagram in example IV.
Wherein：1- power cabinets；2- cabinets；3- power models；4- controllers；5- ac bus interfaces；6- dc bus connects
Mouthful；The guide rails of 7- first；8- single-phase power modules；9- three phase power modules；10- water inlet pipes；11- outlet pipes；12- cooled plates；13-
Blower fan；14- water wind heat exchangers；15- homogenating plates；The equal air holes of 16-；17- return air channels；18- peripheral systems.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The power cabinet and current transformer of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment one
As shown in figure 1, a kind of power cabinet 1, including：Cabinet 2, power model 3 and controller 4, power model 3 and controller
4 electrical connections, and be arranged in cabinet 2, ac bus interface 5 and dc bus interface 6, power mould are provided with cabinet 2
Block 3 is electrically connected with ac bus interface 5 and/or dc bus interface 6 respectively, to pass through ac bus interface 5 and/or direct current
Bus interface 6 is electrically connected with peripheral system or other power cabinets.
Wherein, power model 3 is single-phase power module 8, and quantity is three multiple, and controller 4 is controlled using distributed
Mode processed, i.e., electrically connect with each single-phase power module 8 respectively, realizes to the real-time control of single-phase power module 8 and quick
Protection.As a kind of embodiment, as shown in Fig. 2 power model 3 can also be three phase power module 9, controller is to three-phase
The control principle of power model 9 is identical with controlling the control principle of single-phase power module 8.Power model 3 respectively with ac bus
Interface 5 and dc bus interface 6 are electrically connected, to be connected by ac bus interface 5 or dc bus interface 6 with peripheral system
Connect.Ac bus interface 5 and dc bus interface 6 use standard interface, are easy to electrically connect with peripheral system.Wherein exchange female
Line interface 5 includes rectification side ac bus interface and inverter side ac bus interface, so can be complete according to the difference of the mode of connection
Into rectification and inversion function.
Using above-mentioned technical proposal, allow the power model 3 of the compatible different types of power cabinet 1, can adapt to different
Peripheral system.Only electricity need to be can be achieved with by ac bus interface 5 or dc bus interface 6 between power cabinet 1 and peripheral system
Connection, peripheral system need not carry out the design of complexity according to power model 3, greatly reduce the construction cycle, and develop into
Power is high.
More preferably, as shown in figure 3, being provided with the first guide rail 7 on the inwall of cabinet 2, power model 3 is arranged on the first guide rail 7
On, and can be slided on the first guide rail 7.Further, the second guide rail (not shown) is provided with the inwall of cabinet 2, is controlled
Device 4 is arranged on the second guide rail, and is slided on the second guide rail.
So, power model 3 and controller 4 are installed using drawer push-and-pull structure by the first guide rail 7 and the second guide rail
In cabinet 2, obtain maintenance work to power model 3 and controller 4 and provide conveniently.
Embodiment two
As shown in figure 4, the power cabinet 1 in the present embodiment has whole technologies of the power cabinet 1 described in embodiment one
The difference of power cabinet 1 in feature, with embodiment one is, as shown in figure 4, the power cabinet 1 in the present embodiment also includes
Water-cooling system, water-cooling system include water inlet pipe 10 and outlet pipe 11, water inlet pipe 10 respectively with outside cooling medium source and power mould
The cooled plate 12 of block 3 is connected, and outlet pipe 11 is connected with the cooled plate 12 of power model 3, and cooling medium is flowed into by water inlet pipe 10
The cooled plate 12 of power model 3, and discharged by outlet pipe 11, to be cooled down to power model 3, and by inside cabinet 2
Heat take out of outside cabinet 2.
Wherein, outside cooling medium source can be water pump, and cooling medium can be water, and the cooled plate 12 of power model 3 can
To be connected by the way of conventional (such as by flexible pipe) with water inlet pipe 10 with outlet pipe 11.So power cabinet 1 can be made to possess phase
To independent cooling system, it can prevent power model 3 from crossing heat-induced damage.
More preferably, as shown in figure 5, power cabinet 1, which also includes heat-exchange system in heat-exchange system in cabinet, cabinet, includes blower fan 13 and water
Wind heat exchanger 14, blower fan 13 and water wind heat exchanger 14 can be arranged on the lower section of power model 3, and water wind heat exchanger 14 is respectively with entering
Water pipe 10 is connected with outlet pipe 11, and to make cooling medium be circulated in water wind heat exchanger 14, blower fan 13 blows air and passes through water
Wind heat exchanger 14, and power model 3 is flowed to after being cooled down by water wind heat exchanger 14, to be cooled down to power model 3.
The network structure that its reclaimed water wind heat exchanger 14 can be made up of the steel pipe communicated with one another, cooling medium is in steel pipe
Portion is flowed through, and absorbs the heat for the air for flowing through water wind heat exchanger 14.Blower fan 13 blows air from the mesh of water wind heat exchanger 14
Middle to pass through, air flows to power model 3 after heat is absorbed by the cooling medium of steel duct, it is possible to increase air is to power mould
The cooling effect of block 3.
More preferably, as shown in Figure 5 and Figure 6, cabinet 2 is internally provided with homogenating plate 15, homogenating plate 15 and is provided with equal air holes
16, the quantity of equal air holes 16 is identical with the quantity of power model 3, and is corresponded with power model 3；Flowed through often to adjust
The air mass flow of one power model 3.
Return air channel 17 is formed wherein between the inwall of homogenating plate 15 and cabinet 2, blower fan blows air and flows through the heat exchange of water wind
Power model 3 is flowed to after device 14, return air channel 17 is entered by equal air holes 16 afterwards, blower fan is flowed back to, a circulation is formed.Equal wind
The quantity in hole 16 is identical with the quantity of power model 3, and is corresponded with power model 3, can flow through each power
The air mass flow of module 3 is roughly the same, air-cooled so as to enable blower fan to carry out all power models 3, it is to avoid occur
Air-cooled dead angle.
Embodiment three
As shown in fig. 7, power cabinet 1 also includes heat-exchange system in cabinet, heat-exchange system includes blower fan 13 in cabinet, and blower fan 13 is by sky
Air-blowing is to power model 3, to be cooled down to power model 3.
Power cabinet 1 in the present embodiment is that heat-exchange system does not include the heat exchange of water wind in cabinet with the difference of embodiment two
Device 14, simply directly blows to power model 3 by air using blower fan 13 and air-cooled, this mode structure letter is carried out to power model 3
Single, cost is relatively low.Power cabinet 1 in the present embodiment can also flow through each power model 3 using 15 pairs of homogenating plate of setting
Air mass flow is adjusted, the structure of homogenating plate 15 and Principles of Regulation to air mass flow with it is complete described in embodiment two
It is identical, no longer it is described in detail herein.
Example IV
As shown in figure 8, a kind of current transformer, including peripheral system 18 and the power cabinet 1 described by any of the above embodiment, work(
Rate cabinet 1 is electrically connected by ac bus interface or dc bus interface with peripheral system.More preferably, the quantity of power cabinet is two
Or two or more, two or more power cabinets 1 are sequentially connected in series by ac bus interface or dc bus interface.Unsteady flow
Device can be that unit is changed with power cabinet 1, with compatible different power model, power in current transformer of changing over design
The problem of module selection is single.
As a kind of embodiment, power cabinet 1 includes water-cooling system, the water cooling of two or more power cabinets 1
System is sequentially communicated.
Power cabinet 1 includes water inlet pipe 10 and outlet pipe 11 as described in embodiment two, two or more
While power cabinet 1 is sequentially connected in series by ac bus interface or dc bus interface, the outlet pipe 11 of power cabinet 1 can with it is adjacent
The water inlet association of power cabinet 1 is logical, realizes that the water-cooling system of multiple power cabinets 1 is sequentially communicated, outside cooling medium source can be successively
Power model 3 in multiple power cabinets 1 is cooled down.
Above example has the present invention：Power model functional independence, independent of peripheral system, so as to reduce outer
The workload of peripheral systems design, shortens the construction cycle, and can realize the compatible advantage of multiple power module.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of power cabinet, it is characterised in that：
The power cabinet (1) includes：Cabinet (2), power model (3) and controller (4), the power model (3) and the control
Device (4) electrical connection processed, and be arranged in the cabinet (2)；
Be provided with ac bus interface (5) and dc bus interface (6) on the cabinet (2), the power model (3) respectively with
The ac bus interface (5) and the dc bus interface (6) electrical connection, to by the ac bus interface (5) or
The dc bus interface (6) electrically connects with peripheral system；The cabinet (2) is internally provided with homogenating plate (15), the equal wind
Equal air holes (16) is provided with plate (15), the quantity of the equal air holes (16) is identical with the quantity of the power model (3), and
Corresponded with the power model (3), the homogenating plate (15) flows through the sky of each power model (3) to be homogenized
Throughput；The power cabinet (1), which also includes heat-exchange system in heat-exchange system in cabinet, the cabinet, includes blower fan (13) and the heat exchange of water wind
Device (14)；Return air channel (17), the blower fan (13) are formed between wherein described homogenating plate (15) and the inwall of the cabinet (2)
Blow after air flows through the water wind heat exchanger (14) and flow to the power model (3), entered afterwards by the equal air holes (16)
Enter the return air channel (17), flow back to the blower fan (13), form a circulation.
2. power cabinet according to claim 1, it is characterised in that：
The ac bus interface (5) includes rectification side ac bus interface and/or inverter side ac bus interface.
3. power cabinet according to claim 2, it is characterised in that：
The first guide rail (7) is provided with cabinet (2) inwall, the power model (3) is arranged on first guide rail (7)
On, and can be slided on first guide rail (7).
4. power cabinet according to claim 2, it is characterised in that：
The second guide rail is provided with the cabinet inwall, the controller (4) is arranged on second guide rail, and described
Slided on two guide rails.
5. power cabinet according to claim 2, it is characterised in that：
The multiple that the power model (3) is single-phase power module (8) and quantity is three, or be three phase power module (9).
6. the power cabinet according to claim 1 to 5 any one, it is characterised in that：
The power cabinet (1) also includes water-cooling system, and the water-cooling system includes water inlet pipe (10) and outlet pipe (11)；
Cooled plate (12) of the water inlet pipe (10) respectively with outside cooling medium source and the power model (3) is connected, described
Outlet pipe (11) is connected with the cooled plate (12) of the power model (3)；
Cooling medium flows into the cooled plate (12) of the power model (3) by the water inlet pipe (10), and passes through the water outlet
(11) discharge is managed, to be cooled down to the power model (3).
7. power cabinet according to claim 6, it is characterised in that：
The water wind heat exchanger (14) connects with the water inlet pipe (10) and the outlet pipe (11) respectively, to make cooling medium
Circulated in the water wind heat exchanger (14)；
The blower fan (13) blows air by the water wind heat exchanger (14), and is flowed after the water wind heat exchanger (14) cooling
To the power model (3), to be cooled down to the power model (3).
8. a kind of current transformer, it is characterised in that：
Including the power cabinet (1) described in peripheral system (18) and claim 1 to 7 any one；
The power cabinet (1) passes through the ac bus interface (5) or the dc bus interface (6) and the peripheral system
(18) electrically connect.
9. current transformer according to claim 8, it is characterised in that：
The quantity of the power cabinet (1) is two or more；
Power cabinet (1) more than described two is gone here and there successively by the ac bus interface (5) or the dc bus interface (6)
Connection.
10. current transformer according to claim 9, it is characterised in that：
The power cabinet (1) includes water-cooling system, and the water-cooling system of described two power cabinets (1) above is sequentially communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088908.7A CN104734465B (en) | 2015-02-26 | 2015-02-26 | Power Cabinet and Converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510088908.7A CN104734465B (en) | 2015-02-26 | 2015-02-26 | Power Cabinet and Converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104734465A CN104734465A (en) | 2015-06-24 |
| CN104734465B true CN104734465B (en) | 2017-10-10 |
Family
ID=53458020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510088908.7A Active CN104734465B (en) | 2015-02-26 | 2015-02-26 | Power Cabinet and Converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104734465B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021174277A1 (en) * | 2020-03-05 | 2021-09-10 | Avl List Gmbh | Switchgear cabinet for an electrical converter assembly |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492922A (en) * | 2017-07-24 | 2017-12-19 | 许继电源有限公司 | A kind of charging module and the charger using the charging module |
| CN112311298A (en) * | 2020-10-14 | 2021-02-02 | 青岛中加特电气股份有限公司 | Frequency conversion cabinet |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466007A (en) * | 1944-08-04 | 1949-04-05 | Ohio Crankshaft Co | Power cabinet |
| JPS57119605A (en) * | 1981-01-16 | 1982-07-26 | Tokyo Shibaura Electric Co | Enclosed switchboard |
| CN201007616Y (en) * | 2007-01-15 | 2008-01-16 | 刘建民 | Forced convection cooling device |
| CN102270926B (en) * | 2011-08-26 | 2014-04-09 | 株洲变流技术国家工程研究中心有限公司 | On-vehicle high-power current transformer cooling method and cooling system |
| CN103683845B (en) * | 2012-08-30 | 2016-04-13 | 台达电子工业股份有限公司 | Heat dissipation type power converter device |
| CN103178723A (en) * | 2013-04-07 | 2013-06-26 | 冶金自动化研究设计院 | High-capacity rectifying water-cooling power cabinet |
| CN104022447B8 (en) * | 2014-06-04 | 2017-01-11 | 中节能风力发电(张北）有限公司 | High-power draught fan converter |
| CN204376690U (en) * | 2015-02-26 | 2015-06-03 | 北京天诚同创电气有限公司 | Power cabinet and current transformer |
-
2015
- 2015-02-26 CN CN201510088908.7A patent/CN104734465B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021174277A1 (en) * | 2020-03-05 | 2021-09-10 | Avl List Gmbh | Switchgear cabinet for an electrical converter assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104734465A (en) | 2015-06-24 |
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