CN106208722B - A kind of mine electric wheel dump current transformer - Google Patents
A kind of mine electric wheel dump current transformer Download PDFInfo
- Publication number
- CN106208722B CN106208722B CN201610665759.0A CN201610665759A CN106208722B CN 106208722 B CN106208722 B CN 106208722B CN 201610665759 A CN201610665759 A CN 201610665759A CN 106208722 B CN106208722 B CN 106208722B
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- cavity
- water
- cabinet body
- current transformer
- electric wheel
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The invention discloses a kind of mine electric wheel dump current transformers, including cabinet body, the two sides of cabinet body offer the first cabinet door and the second cabinet door respectively, the interior of the cabinet of the first cabinet door of face is provided with the first cavity and the second cavity, first cavity and the symmetrical shape of the second cavity are distributed, and are provided with water cooling system in the middle part of the first cavity；Rectification copped wave module is provided in the middle part of second cavity；The interior of the cabinet of the second cabinet door of face is provided with third cavity and the 4th cavity, is equipped with the power module arranged along the vertical direction in third cavity and the symmetrical shape distribution of the 4th cavity and third cavity and the 4th cavity；First cavity is arranged back-to-back with third cavity, the second cavity and the 4th cavity；Water-cooling heat radiating system is provided between first cavity and the second cavity and third cavity and the 4th cavity.Mine electric wheel dump current transformer of the invention have many advantages, such as it is simple and compact for structure, occupy small in size, good heat dissipation effect and easy to maintain.
Description
Technical field
The invention mainly relates to mining equipment technical fields, refer in particular to a kind of mine electric wheel dump current transformer.
Background technique
With the continuous expansion of domestic and international large surface mine scale, electric wheel mining vehicle effect is highlighted, in equal production volume
In the case where, large-tonnage mine car can be reduced with vehicle quantity, improved working efficiency and safety, obtained higher economic benefit.
Large Electric wheel mine car carries the Mining Transport task of 40% coal, 90% iron ore in the world at present, is greater than in annual mining volume
Preferred means of transport is taken as in 10000000 tons of surface mine.Mine electric wheel dump current transformer cans be compared to the " heart of vehicle
It is dirty ", control power output effect is primarily served, the quality of performance directly influences the use of electric wheel mining vehicle.With dew
Its mine place is geographical, environment is more and more wider, also higher and higher to the requirement of electric wheel mining vehicle, and current mining electricity
Driving wheel dumper current transformer still has with deficiency:
(1) mine road is rugged, and stope, disposing field working space are limited, and mine electric wheel dump is needed to have well
Operational stability, dynamic property and lesser turning radius；Existing mine electric wheel dump usually all be use 4x2 after
Axis drives pattern, and only 2 rear axle driving turning radius are larger, and in power allocation set, road passability is poor；
(2) mine electric wheel dump current transformer is mounted on mine electric wheel dump vehicle frame, and height of chassis above ground is high, space
It is narrow, it is therefore desirable to which that current transformer has good maintainability, and existing some mine electric wheel dump current transformers are not abundant
The considerations of maintenance of the current transformer on vehicle frame, such as some current transformers pass in and out cable arrangements on vehicle frame, are easy to trip operation
There is safety problem in personnel；
(3) current transformer internal element requires temperature environment stringenter, equipment fault ratio caused by temperature is excessive
It is larger, it is therefore necessary to make current transformer radiating and cooling, to ensure the safe long-term operation of current transformer.It is generally all installed in converter cabinet
There are the heating devices such as capacitor, IGBT, resistance, generates heat than more serious.Existing mine electric wheel dump current transformer, it is most of single
Wind-cooling heat dissipating is solely used, in the exceedingly odious mining area of environment, due to environment temperature height, when leading to current transformer field application, fever
Seriously or even component failure is if capacitor is burst influences element service life；
(4) mine electric wheel dump of equal-wattage is self-possessed smaller, and load-carrying is bigger, and business efficiency is higher.It is existing
Mine electric wheel dump current transformer, most of individually to use wind-cooling heat dissipating, air-cooled radiator volume and weight are very big, cause
Current transformer overall volume and weight are larger.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
Kind is simple and compact for structure, occupies small in size, good heat dissipation effect and mine electric wheel dump current transformer easy to maintain.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of mine electric wheel dump current transformer, including cabinet body, the two sides of the cabinet body offer the first cabinet door respectively
With the second cabinet door, the interior of the cabinet of the first cabinet door described in face is provided with the first cavity and the second cavity, first cavity and
The symmetrical shape of second cavity is distributed, and is provided with water cooling system in the middle part of first cavity；Second cavity
Middle part is provided with rectification copped wave module；The interior of the cabinet of second cabinet door described in face is provided with third cavity and the 4th cavity, institute
It states in third cavity and the symmetrical shape distribution of the 4th cavity and third cavity and the 4th cavity and cloth along the vertical direction is installed
The power module set；First cavity is arranged back-to-back with third cavity, the second cavity and the 4th cavity；Described first is empty
Water-cooling heat radiating system is provided between chamber and the second cavity and third cavity and the 4th cavity.
As a further improvement of the above technical scheme:
The water cooling system includes that water cooling system includes the first installation cavity and the second installation cavity, second peace
It behave affectedly the top for being installed on the first installation cavity and inside communicates to form heat dissipation wind channel, control is installed single in first installation cavity
Member is provided with blower in second installation cavity, the air inlet of heat dissipation wind channel is provided with below first installation cavity, described
Air inlet is provided with water wind heat exchanger.
The blower quantity of second installation cavity be two, the gap being respectively facing between third cavity and cabinet body and
Gap between third cavity and the 4th cavity, for the cold air in the first cavity after the heat exchange of water wind heat exchanger to be blowed to the
Three cavitys and the 4th cavity.
The water-cooling heat radiating system includes water inlet pipe and outlet pipe, and the water inlet pipe and outlet pipe are arranged and are located at vertically
The middle part of cabinet body has been arranged in parallel multiple water inlet branches on the water inlet pipe, respectively enters to rectification copped wave module, power module
It is communicated in water cooling system, and through corresponding water outlet branch with outlet pipe.
The water inlet pipe and outlet pipe stretch out outside cabinet body to be connected with corresponding inlet and outlet, the water outlet
Height is higher than the water inlet；The height of each water outlet branch is above the height of corresponding water inlet branch.
The water inlet pipe and outlet pipe are fastened in the mounting base, and the mounting base is installed on the installation of interior of the cabinet
Liang Shang is provided with resilient cushion between the mounting base and mounting rail.
The bottom of second cavity is provided with inlet-outlet line component, is provided between the third cavity and the 4th cavity low
By cable connection, it is female that the rectification copped wave module is connected to low sense for inductance bus, the inlet-outlet line component and rectification copped wave module
Row arranges through each denominator on low-inductance bus again to be connected with each power module, and each power module is again through cable and inlet-outlet line component phase
Even.
The rectification copped wave module includes rectifying device, copped wave device and water-cooled radiator, the rectifying device and copped wave
Device is located at the front and back sides of the water-cooled radiator.
The cabinet body is welded by Vierendeel girder, and the rectification copped wave module, power module, electric plates component, water cooling dissipate
Hot systems pass through bolt and nut and are fastened on the Vierendeel girder of cabinet body, and the water cooling system is then slidably mounted on by sliding rail
The water-cooling heat radiating system at rear is avoided on the Vierendeel girder of the cabinet body.
The quantity of the power module is six, successively divides three layers to be symmetrically arranged in third cavity and the 4th cavity.
Compared with the prior art, the advantages of the present invention are as follows:
Mine electric wheel dump current transformer of the invention facilitates operation and dimension by the way that cabinet door is arranged in cabinet body two sides
Shield is convenient；It is symmetrical arranged between each module, it is simple and compact for structure, it occupies small in size；Using the air-cooled heat dissipation side in conjunction with water cooling
Formula, so that environment temperature is low in cabinet, the environment of mining area suitable for bad environments.
Detailed description of the invention
Fig. 1 is left view structural representation of the invention.
Fig. 2 is right side structural representation of the invention.
Fig. 3 is overlooking structure diagram of the invention.
Fig. 4 is the structural schematic diagram of water cooling system of the invention.
Fig. 5 is the structural schematic diagram of water-cooling heat radiating system of the invention.
Figure label indicates: 1, cabinet body；11, the first cavity；12, the second cavity；13, third cavity；14, the 4th cavity；
15, the first cabinet door；16, the second cabinet door；2, water cooling system；21, the first installation cavity；22, the second installation cavity；23, control is single
Member；24, blower；25, sliding rail；26, water wind heat exchanger；27, cover board；3, electric plates component；4, copped wave module is rectified；5, inlet-outlet line
Component；6, low-inductance bus；61, denominator is arranged；7, power module；8, water-cooling heat radiating system；81, water inlet pipe；82, outlet pipe；83, into
The mouth of a river；84, water outlet.
Specific embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 5, the mine electric wheel dump current transformer of the present embodiment, including cabinet body 1, the two sides of cabinet body 1
The first cabinet door 15 and the second cabinet door 16 are offered respectively, and the cabinet body 1 of the first cabinet door of face 15 is internally provided with 11 He of the first cavity
Second cavity 12, the first cavity 11 and the symmetrical shape distribution of the second cavity 12, the middle part of the first cavity 11 is provided with air-cooled
The top of cooling system 2, the first cavity 11 is equipped with electric plates component 3；The middle part of second cavity 12 is provided with rectification copped wave mould
The bottom of block 4, the second cavity 12 is equipped with inlet-outlet line component 5；The cabinet body 1 of the second cabinet door of face 16 is internally provided with third cavity
13 and the 4th cavity 14, third cavity 13 and the symmetrical shape distribution of the 4th cavity 14 and third cavity 13 and the 4th cavity 14
The multiple power modules 7 arranged along the vertical direction are inside installed；First cavity 11 and the setting, the second sky back-to-back of third cavity 13
Chamber 12 and the 4th setting back-to-back of cavity 14；The space and third cavity 13 and the 4th that first cavity 11 and the second cavity 12 are formed
Water-cooling heat radiating system 8 is provided between the space that cavity 14 is formed.Mine electric wheel dump current transformer of the invention, by
Cabinet door is arranged in 1 two sides of cabinet body, convenient to use to operate and maintain easily；It is symmetrical arranged between each module, it is simple and compact for structure, it accounts for
With small in size；Using the air-cooled radiating mode in conjunction with water cooling, so that environment temperature is low in cabinet, the severe ring suitable for mining area
Border.
In the present embodiment, water cooling system 2 includes that water cooling system 2 includes the first installation cavity 21 and the second installation cavity
22, the second installation cavity 22 is welded in the top of the first installation cavity 21 and inside and communicates to form heat dissipation wind channel up and down, the first installation cavity
Control unit 23 is installed, the lower section of the first installation cavity 21 is provided with the air inlet of heat dissipation wind channel, and air inlet is provided in 21
Water wind heat exchanger 26；There are two blower 24, the air outlet of two blowers 24 is respectively facing third sky for setting in second installation cavity 22
The gap between gap and third cavity 13 and the 4th cavity 14 between chamber 13 and cabinet body 1, being used for will be in the first cavity 11
Cold air after the heat exchange of water wind heat exchanger 26 blows in third cavity 13 and the 4th cavity 14, and the front of the second installation cavity 22 is living
It is dynamic that cover board 27 is installed, facilitate the installation and maintenance of blower 24.As shown in Figure 1, two blowers 24 suck the hot-air in cabinet
In the heat dissipation wind channel of first cavity 11, the water wind heat exchanger 26 by air inlet becomes cold air, and cold air is first to first
Control unit 23 in installation cavity 21 is cooled down, as shown in figure 3, blowing to by two blowers 24 in the second installation cavity 22
It in the gap of three cavitys 13 and the 4th cavity 14, to be cooled down to power module 7, returns again to the second cavity 12, passes through
Over commutation copped wave module 4 eventually passes back in the first cavity 11, completes primary heat dissipation circulation；Wherein cabinet body 1 and water cooling system
Circulation in constituting between 2, You Shuifeng radiator take away heat in cabinet.The present invention is exchanged heat using forced air cooling combination cooling medium,
By being laid out in optimization cabinet, innovative design heat dissipation wind channel forms internal circulation system, improves heat exchange efficiency, greatly reduces and becomes
Body product is flowed, the power density of current transformer is increased；Control unit 23 is as current transformer core component integrated installation in radiation air
It inside road, can preferably radiate, improve the functional reliability of current transformer.In addition, water cooling system 2 then passes through sliding rail
25 are slidably mounted on the water-cooling heat radiating system 8 that rear is avoided on the Vierendeel girder of cabinet body 1, the convenient water-cooling heat radiating system to rear
8 are safeguarded, current transformer space is rationally utilized.
In the present embodiment, water-cooling heat radiating system 8 includes water inlet pipe 81 and outlet pipe 82, and water inlet pipe 81 and outlet pipe 82 are perpendicular
Straight arrangement and the middle part for being located at cabinet body 1, and to stretch out cabinet body 1 outer with corresponding water inlet 83 and out for water inlet pipe 81 and outlet pipe 82
The mouth of a river 84 be connected, multiple water inlet branches (such as hose) have been arranged in parallel on water inlet pipe 81, respectively enter to rectify copped wave module 4,
In power module 7 and the water wind heat exchanger 26 of water cooling system 2, and through corresponding water outlet branch (such as hose) and outlet pipe 82
It communicates.Wherein the height of water outlet 84 is higher than water inlet 83；The height of each water outlet branch is above the height of corresponding water inlet branch,
Meet gas flow direction, can preferably be exhausted, realizes Water-cooling circulating.Pacify additionally, due to water inlet pipe 81 and outlet pipe 82
Middle part loaded on cabinet body 1 can guarantee each branch symmetric configuration, guarantee each bypass flow balance, so that it is uniform to reach heat dissipation
Purpose；Each branch is in parallel connection, keeps an entire flow resistance smaller.In addition water inlet pipe 81 and outlet pipe 82 are fastened on installation
On seat, mounting base is installed on the mounting rail inside cabinet body 1, and resilient cushion is provided between mounting base and mounting rail, can be guaranteed
Each module is suitable for working under severe vibration environment.
In the present embodiment, rectification copped wave module 4 include rectifying device, copped wave device and water-cooled radiator, rectifying device and
Copped wave device is located at the front and back sides of water-cooled radiator, rationally utilizes space, reduces whole cabinet quality.Due to rectifying device with cut
Wave device runing time is not overlapped, therefore water-cooled radiator need to only meet the radiating requirements for the copped wave device that wherein power consumption is high.
In the present embodiment, the quantity of power module 7 is six, and three layers (forming two vertical setting of types) is successively divided to be symmetrically arranged on third
In cavity 13 and the 4th cavity 14.Low-inductance bus 6 is provided between two vertical setting of types power modules 7, low-inductance bus 6 then passes through each denominator
Row 61 is connected with each power module 7, and each power module 7 is paralleling model.The external three-phase alternating current inlet wire of converter cabinet access into
Outlet component 5, by cable connection to rectification copped wave module 4, alternating current is connected to low sense mother by being rectified into DC current
Row 6, then each power module 7 is connected to by each denominator row 61 from low-inductance bus 6, it is reverse into frequency, voltage adjustable three
Phase alternating current is collected to inlet-outlet line component 5 by cable, and corresponding 1 bottom plate of cabinet body of inlet-outlet line component 5 is equipped with external inlet-outlet line and connects
String holes is connected for input and output.Due to power module 7 use symmetric configuration, with low-inductance bus 6 and identical denominator row 61 into
Row is in parallel, and miscellaneous phase inductance is small, there is superior electric property；Six power modules 7 drive the wheel self-unloading of 6x6 a11wheel drive mining electric
The power of vehicle and the single power module 7 of smart allocation, tractive force is strong, and stress is good, turns to flexibly, road passability is good, motor-driven spirit
Course changing control living makes it have round-the-clock, high-adaptability, adapts to the environment such as miriness, sand ground.
In the present embodiment, cabinet body 1 is welded by Vierendeel girder, and cabinet body 1 is totally-enclosed using sealing strip, and centre is pacified by each component
Beam is filled to be welded to connect.As shown in Figure 1, inlet-outlet line component 5 is fixed by the connectors such as bolt and nut and 1 bottom plate of cabinet body.Rectification is cut
Wave module 4 is installed vertical beam with cabinet body 1 by connectors such as bolt and nuts and is fixed.Power module 7 passes through the connectors such as bolt and nut
Crossbeam is installed with cabinet body 1 to fix.Low-inductance bus 6 is installed crossbeam by the connectors such as bolt and nut, insulator and cabinet body 1 and is fixed.
Water cooling system 2 is installed stringer with cabinet body 1 by bolt and nut and is fixed.Electric plates component 3 is pushed up by bolt and nut and cabinet body 1
Portion's crossbeam is fixed.Water-cooling heat radiating system 8 is installed crossbeam with cabinet body 1 by bolt and nut and is fixed.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (9)
1. a kind of mine electric wheel dump current transformer, which is characterized in that including cabinet body (1), the two sides of the cabinet body (1) are distinguished
The first cabinet door (15) and the second cabinet door (16) are offered, the cabinet body (1) of the first cabinet door (15) described in face is internally provided with first
Cavity (11) and the second cavity (12), first cavity (11) and the second cavity (12) symmetrical shape distribution, described the
Water cooling system (2) are provided in the middle part of one cavity (11)；Rectification copped wave mould is provided in the middle part of second cavity (12)
Block (4)；The cabinet body (1) of second cabinet door (16) described in face is internally provided with third cavity (13) and the 4th cavity (14), described
Installation in third cavity (13) and the symmetrical shape distribution of the 4th cavity (14) and third cavity (13) and the 4th cavity (14)
There is the power module (7) arranged along the vertical direction；First cavity (11) and third cavity (13), the second cavity (12) and the
Four cavitys (14) setting back-to-back；First cavity (11) and the second cavity (12) and third cavity (13) and the 4th cavity
(14) water-cooling heat radiating system (8) are provided between；The rectification copped wave module (4) includes rectifying device, copped wave device and water cooling
Radiator, the rectifying device and copped wave device are located at the front and back sides of the water-cooled radiator.
2. mine electric wheel dump current transformer according to claim 1, which is characterized in that the water cooling system
It (2) include that water cooling system (2) include the first installation cavity (21) and the second installation cavity (22), the second installation cavity (22) peace
Top and inside loaded on the first installation cavity (21) communicate to form heat dissipation wind channel, are equipped with control in first installation cavity (21)
Unit (23), second installation cavity (22) is interior to be provided with blower (24), is provided with below first installation cavity (21) scattered
The air inlet of hot-flow flue, the air inlet are provided with water wind heat exchanger (26).
3. mine electric wheel dump current transformer according to claim 2, which is characterized in that second installation cavity (22)
Blower (24) quantity be two, the gap being respectively facing between third cavity (13) and cabinet body (1) and third cavity (13)
With the gap between the 4th cavity (14), it is used to blow the cold air in the first cavity (11) after water wind heat exchanger (26) heat exchange
To third cavity (13) and the 4th cavity (14).
4. mine electric wheel dump current transformer according to claim 1 or 2 or 3, which is characterized in that the water-cooling
System (8) includes water inlet pipe (81) and outlet pipe (82), and the water inlet pipe (81) and outlet pipe (82) are arranged and are located at vertically
The middle part of cabinet body (1) has been arranged in parallel multiple water inlet branches on the water inlet pipe (81), respectively enters to rectification copped wave module
(4), it in power module (7) and water cooling system (2), and is communicated through corresponding water outlet branch with outlet pipe (82).
5. mine electric wheel dump current transformer according to claim 4, which is characterized in that the water inlet pipe (81) and go out
Water pipe (82) stretches out cabinet body (1) and is connected outside with corresponding water inlet (83) and water outlet (84), the height of the water outlet (84)
Degree is higher than the water inlet (83)；The height of each water outlet branch is above the height of corresponding water inlet branch.
6. mine electric wheel dump current transformer according to claim 4, which is characterized in that the water inlet pipe (81) and go out
Water pipe (82) is fastened in the mounting base, and the mounting base is installed on the internal mounting rail of cabinet body (1), the mounting base
Resilient cushion is provided between mounting rail.
7. mine electric wheel dump current transformer according to claim 1 or 2 or 3, which is characterized in that second cavity
(12) bottom is provided with inlet-outlet line component (5), and it is female that low sense is provided between the third cavity (13) and the 4th cavity (14)
It arranges (6), the inlet-outlet line component (5) and rectification copped wave module (4) pass through cable connection, rectification copped wave module (4) connection
It is connected again through each denominator row (61) on low-inductance bus (6) with each power module (7) to low-inductance bus (6), each power module (7)
It is connected again through cable with inlet-outlet line component (5).
8. mine electric wheel dump current transformer according to claim 1 or 2 or 3, which is characterized in that the cabinet body (1)
It is welded by Vierendeel girder, the rectification copped wave module (4), power module (7), electric plates component (3), water-cooling heat radiating system
(8) it is fastened on the Vierendeel girder of cabinet body (1) by bolt and nut, the water cooling system (2) is then sliding by sliding rail (25)
It is dynamic to be mounted on the water-cooling heat radiating system (8) that rear is avoided on the Vierendeel girder of the cabinet body (1).
9. mine electric wheel dump current transformer according to claim 1 or 2 or 3, which is characterized in that the power module
(7) quantity is six, successively divides three layers to be symmetrically arranged in third cavity (13) and the 4th cavity (14).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665759.0A CN106208722B (en) | 2016-08-15 | 2016-08-15 | A kind of mine electric wheel dump current transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665759.0A CN106208722B (en) | 2016-08-15 | 2016-08-15 | A kind of mine electric wheel dump current transformer |
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| CN106208722A CN106208722A (en) | 2016-12-07 |
| CN106208722B true CN106208722B (en) | 2019-03-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109256937A (en) * | 2018-09-27 | 2019-01-22 | 珠海格力电器股份有限公司 | Inverter controlled water chiller and inverter |
| CN114094798B (en) * | 2021-11-12 | 2023-11-14 | 株洲变流技术国家工程研究中心有限公司 | Traction converter of mining electric wheel dumper |
| CN117156785B (en) * | 2023-10-30 | 2024-04-05 | 苏州钧灏电力有限公司 | Converter module mounting rack and working method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201956883U (en) * | 2010-12-17 | 2011-08-31 | 常州凯锐自动化控制设备有限公司 | Control cabinet for mining coalbed gas |
| CN104600960B (en) * | 2014-04-17 | 2017-02-15 | 南车株洲电力机车研究所有限公司 | Compact main unit cabinet of power cabinet, assembly method thereof and arrangement method for components therein |
| CN104113188A (en) * | 2014-07-29 | 2014-10-22 | 青岛威控电气有限公司 | Coal mine explosion-proof frequency converter |
| CN204578343U (en) * | 2015-05-08 | 2015-08-19 | 株洲南车时代电气股份有限公司 | High-power converter cabinet |
| CN104967020A (en) * | 2015-06-18 | 2015-10-07 | 南京磁谷科技有限公司 | Air blower electronic control cabinet |
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