CN110365191A - A kind of high-power converter cabinet - Google Patents
A kind of high-power converter cabinet Download PDFInfo
- Publication number
- CN110365191A CN110365191A CN201810306074.6A CN201810306074A CN110365191A CN 110365191 A CN110365191 A CN 110365191A CN 201810306074 A CN201810306074 A CN 201810306074A CN 110365191 A CN110365191 A CN 110365191A
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- CN
- China
- Prior art keywords
- cavity
- power converter
- cabinet body
- unsteady flow
- sealant
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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
- H02M1/00—Details of apparatus for conversion
-
- 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
Abstract
The optimization design that a kind of high-power converter cabinet provided by the invention passes through air duct, unsteady flow module is placed in the 4th cavity, first cavity and third cavity are placed in the two sides on upper layer as non-heat-dissipating space, after extraneous cold wind enters the 5th cavity, it flows through the 4th cavity to radiate to unsteady flow module, flow through the second cavity later and is expelled to the outside of high-power converter cabinet into fan assembly.Cold wind enters high-power converter cabinet and flows through the turn that the heat dissipation path after unsteady flow module has lacked one 90 degree, thus fan assembly air outlet wind speed is higher, dynamic pressure is larger, resistance of the air-flow at fan assembly air outlet is reduced significantly, complete machine is increased effectively to radiate air quantity, fan efficiency and radiating efficiency are improved, while also avoiding vortex dead zone and tonal noise caused by changing in volute of blower due to flow direction, improves the sound quality and performance of entire current transformer.
Description
Technical field
The invention belongs to for field of power transformation more particularly to a kind of high-power converter cabinet.
Background technique
Urban track traffic at present generallys use AC Drive i.e. VVVF (Variable Voltage and Variable
Frequency) motor train unit train, braking are generally electric braking (i.e. regenerative braking, resistive braking) and air damping two-stage.?
When vehicle high-speed is run, using regenerative braking and resistive braking, when decelerating to electric braking and not working, air damping is used.
In the process of running, since station spacing is shorter, frequently, braking energy is considerable, can achieve and leads for launch train, braking for train
Draw 40% or more of energy, and partial regeneration braking energy (generally 20%~80%, according to train operation density and zone distance
It is different and different) can be absorbed by power supply section Adjacent vehicles same on route and Ben Che auxiliary system, remainder will be main
It is consumed in a manner of generating heat or absorbed by the absorption plant on route by the absorption resistance of train.
When train departure density is lower, regeneration energy will be substantially reduced by the probability that other vehicles absorb.Data shows
When train departure interval is greater than 10min, the absorbed probability of regenerating braking energy is almost nil, at this time most Brake Energies
Amount will be reproduced energy absorbing device absorption, become thermal energy and to distributing everywhere, this not only wastes energy, but also also increases station
The burden of interior air-conditioning blower unit, and increase construction cost and operating cost.Energy feedback current transformer be exactly in order to solve on
The product that the problem of stating is come into being.
Energy feedback current transformer is to be fed back to train braking energy inversion for AC energy using electronic power convertor
AC network is recycled for other equipment.The device takes full advantage of train regenerating braking energy, improves the benefit of regeneration energy
With rate, energy-saving effect is good, and can reduce the capacity of train braking resistance；Its energy directly feeds back to power grid, both not configure storage
Energy element, also should not absorption resistance；It is small to ambient temperature effect, this scheme is mostly used in the case where high-power indoor location.
It is larger that current transformer power can be presented, in industrial circle, there are many heat sources, these heat for high power electronic equipment
Source is mainly from active and passive heater element.Active heater element refers mainly to power electronic devices, such as silicon-controlled, IGBT/
GTO/IGCT；Passive heater element then mainly includes reactor, resistor, transformer etc..All these heater elements can all make
The temperature of device increases, so as to cause the component degradation inside device, service life reduction.As power electronic equipment is to small
Type, lightweight, reliabilization direction develop, significantly more efficient heat dissipation technology at research emphasis.
During existing high power electronic equipment thermal design, usually to power module and other heater elements respectively into
Row heat dissipation.For the passive elements such as transformer, reactor, power module is restricted thermal capacity because of small volume,
Temperature is easy rapid increase, it is made to generate heat damage.On high power electronic equipment, it is auxiliary that special radiator is usually taken
Heat dissipation is helped, and pressure cooling is carried out to radiator, such as using modes such as forced air cooling, water cooling, the hot and cold pipe heat dissipations of oil.
In numerous radiating modes, the heat dissipation effect of air blast cooling is much better than natural air cooled, and complexity is significantly less than
Water cooling and oil are cold, and price is lower than heat pipe heat radiation mode, and reliability is also higher, therefore is the main of high power electronic equipment
Radiating mode.
Under normal conditions, select the biggish Section Bar Heat Sinks of heat dissipation area and the biggish blower of air quantity that can reduce radiator
To the thermal resistance of environment, heat dissipation effect is improved, but the increase of heat dissipation area and the raising of fan delivery are by the processing of radiator
The limitation of the indexs such as technique, volume, weight and noise.Therefore, under conditions of radiator and certain fan parameter, reasonably
Duct design is the another effective way for improving heat dissipation effect.In the high-power electric and electronic dress comprising many fever passive elements
In setting, how compact design air duct, and reduce blower quantity and device volume and be particularly important.
In the patent that notification number is CN204578343U, the air-flow for flowing through unsteady flow module passes through 90 degree of turn with air duct
After enter back into fan assembly and easily cause vortex dead zone and tonal noise.
Summary of the invention
The technical issues of tonal noise each for solution vortex dead zone existing in the prior art, the present invention provides a kind of big function
Rate converter cabinet, concrete scheme are as follows:
A kind of high-power converter cabinet, including cabinet body and fan assembly, the inner space of the cabinet body are divided into bottom, middle layer
And upper layer, it is further divided into five cavitys, respectively the first cavity, the second cavity, third cavity, the 4th chamber on this basis
Body and the 5th cavity；
5th cavity is located at bottom, and the 4th cavity is located at middle layer, first cavity, the second cavity and third
Cavity is respectively positioned on upper layer, wherein and the second cavity is located at the middle part on upper layer, and the first cavity and third cavity are located at the two sides on upper layer,
Secondary control element is placed in first cavity and third cavity, is non-heat-dissipating space, and unsteady flow module is located at the 4th cavity；
The fan assembly, which is located at the top of cabinet body, to be centrally arranged；
Blower in the fan assembly concentrates exhausting, and extraneous cold wind is introduced into the 5th cavity of bottom, and successively passes through
Enter fan assembly after crossing the 4th cavity and the second cavity, is expelled to high-power change eventually by the air outlet of fan assembly surrounding
Flow the outside of device cabinet.
Further, the air outlet of the fan assembly surrounding is that steel wire is mesh-structured.
Further, the surrounding of the fan assembly is outlet air part, and the air outlet is arranged on outlet air part, the outlet air
There are gaps between one end and top plate member of top plate member for part.
Further, gap of the outlet air part between one end and top plate member of top plate member be h, then 5mm < h <
10mm。
Further, the unsteady flow module is phase module, and the waveform of unsteady flow module is three level, and the quantity of unsteady flow module is
6, a wherein phase for each unsteady flow module connection three phase mains is one group with 3 unsteady flow modules and 6 unsteady flow modules is divided into two
Group, each group include three phase mains mutually different three phases.
Further, the cabinet body is divided into three-layer sealed structure；
First sealant is the outermost sealant of cabinet body, and the inside for foring cabinet body by the sealing of the first sealant is empty
Between；
Second sealant be cavity parting seal layer, by the second sealant by interior of the cabinet space be divided into bottom, in
Five cavity of the layer with upper layer and based on this；
Third sealant is the sealing enhancement layer of the 4th cavity, reinforces the leakproofness of the 4th cavity by third sealant
Can, to increase the air quantity for passing through unsteady flow module.
Further, first sealant is by two lower door components positioned opposite, two groups of visiting positioned opposite
Part, two lateral plate components positioned opposite, a top plate member, a bottom deck assembly, cabinet body frame and several sealing strips composition；
The bottom deck assembly is located at the bottom of the 5th cavity, and each lower door component is adjacent with bottom deck assembly, and any lower door component includes two
A filter at air inlet, door component once in office install side, one end and the Xiamen of the upper door component of the lower door component installation side
Component is adjacent, and the other end of the upper door component of the lower door component installation side is adjacent with top plate member；
One end of any lateral plate component is adjacent with bottom deck assembly, and the other end is adjacent with top plate member；Upper door component and Xiamen
Component is respectively positioned between two lateral plate components positioned opposite；
Sealing strip be arranged between lower door component and cabinet body frame, between upper door component and cabinet body frame, top plate member with
Between cabinet body frame and between lateral plate component and cabinet body frame.
Further, second sealant is by two the first sealing partitions, two cross positioned opposite positioned opposite
To sealing partition, the second sealing partition, a module support assemblies and several sealing strips composition；
Module support assemblies separate the 4th cavity and the 5th cavity, together between the 4th cavity and the 5th cavity
When be also bottom and middle layer separator；
Second sealing partition separates middle layer and upper layer, and upper layer is divided by the first sealing partition and transverse sealing partition
The second chamber in the middle part of upper layer, and the first chamber and third chamber positioned at upper layer two sides；
Sealing strip setting is between the first sealing partition and transverse sealing partition, transverse sealing partition and second seals partition
Between and first sealing partition and second sealing partition between.
Further, the third sealant is made of two primary seal board group parts and cabinet body frame positioned opposite, is appointed
One primary seal board group part is located between unsteady flow module and lower door component, and cabinet body frame includes the column vertical with bottom deck assembly, appoints
One primary seal board group part with there are gaps between the adjacent column in the primary seal board group part two sides.
Further, any primary seal board group part and the gap between the adjacent column in the primary seal board group part two sides
For h3, then 1mm < h3 < 3mm.
Further, the height of second cavity is h1, away from the second chamber in the unsteady flow module nearest from the second cavity
The distance of the nearest position of body to two cavity bottoms is h2, then h1 > 100mm, h2 > 300mm.
Compared with prior art, a kind of high-power converter cabinet provided by the invention will be become by the optimization design in air duct
The inner space for flowing the cabinet body of device cabinet is divided into the form of three layer of five cavity, and unsteady flow module is placed in the 4th cavity, the first chamber
Body and third cavity are placed in the two sides on upper layer as non-heat-dissipating space, and the 5th cavity, the 4th cavity and the formation of the second cavity are located at
The intracorporal air duct of cabinet flows through the 4th cavity and radiates to unsteady flow module, flow through later after extraneous cold wind enters the 5th cavity
Second cavity and the outside that high-power converter cabinet is expelled into fan assembly, in this way, then cold wind enters high-power converter
Cabinet flows through the turn that the heat dissipation path after unsteady flow module has lacked one 90 degree, thus fan assembly air outlet wind speed is higher, dynamic pressure
It is larger, resistance of the air-flow at fan assembly air outlet is reduced significantly, is increased complete machine and is effectively radiated air quantity, improves wind
Engine efficiency and radiating efficiency, while vortex dead zone and tonal noise caused by changing in volute of blower due to flow direction are also avoided,
Improve the sound quality and performance of entire current transformer.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is the high-power converter cabinet heat radiation structure diagram in the embodiment of the present invention；
Fig. 2 is the high-power converter cabinet complete machine perspective view in the embodiment of the present invention；
Fig. 3 is the high-power converter cabinet internal structure perspective view in the embodiment of the present invention；
Fig. 4 is the fan assembly schematic diagram in the embodiment of the present invention；
Fig. 5 is the location arrangements of part sealing strip and the bulk schematic diagram of Homogeneouslly-radiating in the embodiment of the present invention；
Fig. 6 is filter at air inlet schematic diagram in the embodiment of the present invention；
Fig. 7 is that third seals schematic diagram of a layer structure in the embodiment of the present invention；
Fig. 8 is the hot simulated temperature cloud charts of unsteady flow module in the embodiment of the present invention.
In the accompanying drawings, identical component uses identical appended drawing reference, and attached drawing is not drawn to scale.
Specific embodiment
The present invention will be further explained below with reference to the accompanying drawings.
In various embodiments of the present invention, the description of the positional relationships such as top, bottom, upper and lower is with the normal work of high-power converter cabinet
Placement state when making is reference.It as shown in Figure 1, Figure 2, is putting when high-power converter cabinet works normally shown in Fig. 3 and Fig. 5
State.
As shown in figs. 1-7, the present embodiment provides a kind of high-power converter cabinet, which includes including cabinet
Body and the fan assembly 3 at the top of cabinet body, the inner space of the cabinet body are divided into bottom, middle layer and upper layer, on this basis into
One step is divided into five cavitys, respectively the first cavity 8001, the second cavity 8002, third cavity 8003, the 4th cavity 8004
With the 5th cavity 8005.5th cavity 8005 is located at bottom, and the 4th cavity 8004 is located at middle layer, the first cavity 8001, the second chamber
Body 8002 and third cavity 8003 are respectively positioned on upper layer, wherein the second cavity 8002 is located at the middle part on upper layer, 8001 He of the first cavity
Third cavity 8003 is located at the two sides on upper layer, places secondary control element in the first cavity 8001 and third cavity 8003, belongs to low
Pressure chamber, is non-heat-dissipating space, and unsteady flow module 11 is located at the 4th cavity 8004.Preferably, breaker 13 is two, and breaker 13 is pacified
In breaker support component 14, breaker 13 and breaker support component 14 are respectively positioned on the 5th cavity 8005, the second cavity
8002 be cavity.Fan assembly 3, which is located at the top of cabinet body, to be centrally arranged；Blower in fan assembly 3 concentrates exhausting, and extraneous is cold
Wind is introduced into the 5th cavity 8005 of bottom, and successively enters fan assembly after the 4th cavity 8004 and the second cavity 8002
3, the outside of high-power converter cabinet is expelled to eventually by the air outlet 3011 of 3 surrounding of fan assembly.Each cavity is in cabinet body
The distribution in portion space and air duct trend are as shown in Figure 1.Preferably, to centrifugal blower after the blower in fan assembly 3 is.
Compared with prior art, a kind of high-power converter cabinet provided in this embodiment, will by the optimization design in air duct
The inner space of the cabinet body of converter cabinet is divided into the form of three layer of five cavity, and unsteady flow module 11 is placed in the 4th cavity 8004
Interior, the first cavity 8001 and third cavity 8003 are placed in the two sides on upper layer, the 5th cavity 8005, the 4th chamber as non-heat-dissipating space
Body 8004 and the second cavity 8002, which are formed, is located at the intracorporal air duct of cabinet, after extraneous cold wind enters the 5th cavity 8005, flows through the
Four cavitys 8004 radiate to unsteady flow module 11, flow through the second cavity 8002 later and are expelled to big function into fan assembly 3
The outside of rate converter cabinet, in this way, then cold wind enters high-power converter cabinet to flow through the heat dissipation path after unsteady flow module 11 few
One 90 degree of turn, thus 3011 wind speed of air outlet of fan assembly 3 is higher, dynamic pressure is larger, reduces air-flow significantly and exists
Resistance at the air outlet 3011 of fan assembly 3 increases complete machine and effectively radiates air quantity, improves fan efficiency and heat dissipation effect
Rate, while vortex dead zone and tonal noise caused by changing in volute of blower due to flow direction are also avoided, improve entire unsteady flow
The sound quality and performance of device.
Preferably, the air outlet 3011 of 3 surrounding of fan assembly is that steel wire is mesh-structured, and Fig. 4 uses the simplified technique of painting, out
The mesh that actually finer wire is separated of air port 3011.Preferably, the steel wire surface is zinc-plated, has preferable rustless property.By
In using steel wire mesh-structured, the gap between each air outlet 3011 only has a gauge of wire size, usually 1mm or so,
Air outlet pressure drop is significantly thus reduced, substantially increases the work air quantity of blower.Outlet air in compared with the prior art
It makes a slip of the tongue filter constructions, the resistance at the mesh-structured air outlet 3011 of the steel wire in the present embodiment reduces 20% or more.
Preferably, in the present embodiment, top plate member 4 is between the second cavity 8002 and fan assembly 3, fan assembly 3
Surrounding be the outlet air part 301 equipped with the mesh-structured air outlet 3011 of steel wire, outlet air part 301 close to top plate member 4 one end with
There are gap h between top plate member 4, rather than dead installation is directly pasted with top plate member 4, and gap h is as shown in Figure 4.Preferably,
The value range of gap h is 5mm < h < 10mm.Gap h can be avoided the blower air-ducting ring air inlet in fan assembly 3 by
In gap, very few lead to the problem of is vortexed dead zone, further decreases the resistance in entire air duct.Fan assembly 3 further includes being set to wind
Top end plate 302 at the top of machine prevents air-flow from escaping from the top of fan assembly 3.It is pasted between outlet air part 301 and top plate member 4
There is sealing strip 8006 to seal the gap h between outlet air part 301 and top plate member 4, so that the degree of protection for meeting complete machine reaches
It to the requirement of IP31, can prevent moist location condensation from entering cabinet body, promote the environmental suitability of high-power converter cabinet, compare
In needing the structure for additionally installing anti-condensation top plate additional in the prior art, the production cost of high-power converter cabinet is reduced.
Preferably, unsteady flow module 11 is phase module, and phase module, that is, unsteady flow module 11 waveform is three level, unsteady flow module
Quantity is 6, and each unsteady flow module 11 connects a wherein phase for three phase mains, is one group by 6 unsteady flows with 3 unsteady flow modules 11
Module is divided into two groups, each group include three phase mains mutually different three phases.Preferably, each unsteady flow module includes
The IGBT elements of 3 independent bridge arms.Unsteady flow module in the prior art is usually two high power modules, each unsteady flow mould
Block contains mutually different three phases of three phase mains.The structure of above-mentioned unsteady flow module 11 in the present embodiment is by the prior art
In two high-power converting modules split into 6 relatively small phase modules of power i.e. unsteady flow module 11 so that single become
The loss of flow module is reduced to 1.4KW by original 5.4KW, and the heat flow density of single IGBT element has dropped 74%, lower hot-fluid
Density means simpler, more inexpensive heat dissipation design, while also implying that lower module temperature rise, the longer device longevity
Life, thus the quality and performance of comprehensive promotion current transformer.
The core of Duct design is Seal Design, and air duct is the flow direction for guiding wind, concentrates flow direction to need to dissipate in extraneous cold wind
The component of heat, and the sealing performance in air duct is to ensure that air duct can effectively guide the central factor of the flow direction of wind, therefore complete machine seals
Performance is most important for radiator structure.Preferably, the cabinet body of high-power converter cabinet is divided into three-layer sealed structure.
First sealant is the outermost sealant of cabinet body, and the inside for foring cabinet body by the sealing of the first sealant is empty
Between.Preferably, the first sealant upper door component 2, two phases positioned opposite by two positioned opposite lower door component 1, two
To the top plate member 4, one of lateral plate component 5, one bottom deck assembly 15 of arrangement, cabinet body frame 16 and 8006 groups of several sealing strips
At；Bottom deck assembly 15 is located at the bottom of the 5th cavity 8005, and each lower door component 1 is adjacent with bottom deck assembly 15, any Xiamen group
Part 1 includes two filter at air inlet 6, this two filter at air inlet 6 are along the vertical direction close to arrangement, door component once in office
1 installation side, the one end for the upper door component 2 which installs side is adjacent with the lower door component 1, which installs side
Upper door component 2 the other end it is adjacent with top plate member 4.One end of any lateral plate component 5 is adjacent with bottom deck assembly 15, the other end
It is adjacent with top plate member 4；Upper door component 2 and lower door component 1 are respectively positioned between two lateral plate components 5 positioned opposite.Sealing strip
8006 be arranged between lower door component 1 and cabinet body frame 16, between upper door component 2 and cabinet body frame 16, top plate member 4 and cabinet body
Between frame 16 and between lateral plate component 5 and cabinet body frame 16.The specific structure of above-mentioned first sealant is as shown in Figure 1, Figure 2 and schemes
Shown in 3, the position of part sealing strip is as shown in Figure 5.First sealant is located at the outermost of cabinet body, can effectively prevent extraneous dust
Into cabinet body, while can also prevent from leaking out.Filter at air inlet 6 in lower door component 1 is entire high-power converter cabinet
Unique cold wind enter channel, extraneous cold wind flows through the filter at air inlet 6 being arranged in lower door component 1 and enters the 5th cavity
8005.The size of filter at air inlet 6 has an important influence the duct resistance of high-power converter cabinet and radiating efficiency, air inlet
The excessive degree of protection decline that will lead to high-power converter cabinet of filter 6 of making a slip of the tongue, it is excessive into impurity such as cabinet body dusts, it influences big
The reliability of power converter cabinet；Filter at air inlet 6 is too small, will lead to heat dissipation deficiency in draught, increases high-power converter cabinet
Air duct aerodynamic drag, influence the radiating efficiency of high-power converter cabinet.The size of filter at air inlet 6 can be closed rule of thumb
Reason selection.Preferably, filter at air inlet 6 is using the form mounted, as shown in fig. 6, filter at air inlet 6 includes symmetrical
What is be arranged mounts side 601, and hook 6011 is arranged on mounting side 601, is mounted 6 entirety of filter at air inlet by hook 6011
In lower door component 1.In this way, which the installation of filter at air inlet 6 can be completed without other firm parts, air inlet is simplified
The installation process of filter 6 shortens the maintenance time of high-power converter cabinet.
Second sealant be cavity parting seal layer, by the second sealant by interior of the cabinet space be divided into bottom, in
Five cavity of the layer with upper layer and based on this.Preferably, the second sealant by two first sealings positioned opposite every
Plate 8, two 9, one second 10, module support assemblies 12 of sealing partition of transverse sealing partition positioned opposite and several close
Strip of paper used for sealing 8006 forms.Module support assemblies 12 are between the 4th cavity 8004 and the 5th cavity 8005, by the 4th cavity 8004
It is separated with the 5th cavity 8005, while being also the separator of bottom and middle layer.Second sealing partition 10 divides middle layer and upper layer
It separates, upper layer is divided into the second chamber 8002, Yi Jiwei in the middle part of upper layer by the first sealing partition 8 and transverse sealing partition 9
The first chamber 8001 and third chamber 8003 in upper layer two sides.Sealing strip 8006 setting first sealing partition 8 and transverse sealing every
Between plate 9, transverse sealing partition 9 and second sealing partition 10 between and first sealing partition 8 with second seal partition 10 it
Between, silicone sealant is coated in the periphery of sealing strip 8006 to reinforce sealing performance.There are the 5th chambers in module support assemblies 12
Body 8005 leads to the airflow channel of the 4th cavity 8004, and there are the 4th cavitys 8004 to lead to the second chamber on the second sealing partition 10
The airflow channel of body 8002.The structure of second sealant is as shown in figure 3, the position of part sealing strip is as shown in Figure 5.Pass through second
Sealant will be formed by the structure that interior of the cabinet space is divided into above-mentioned three layer of five cavity, and each sealing position by the first sealant
Setting good sealing performance enables extraneous cold wind to enter the 5th cavity 8005 from filter at air inlet 6 according to preset air duct
Afterwards, the 4th cavity 8004 is flowed through, and enters fan assembly 3 through the second cavity 8002, it is final to be discharged outside high-power converter cabinet, from
And the heater element in converter cabinet is made to obtain preferable cooling, what heater element herein was primarily referred to as above-mentioned is located at
6 unsteady flow modules 11 in 4th cavity 8004.
Third sealant is the sealing enhancement layer of the 4th cavity 8004, reinforces the 4th cavity 8004 by third sealant
Sealing performance, to increase the air quantity for passing through unsteady flow module 11.Preferably, third sealant is by two primary seals positioned opposite
Board group part 7 and cabinet body frame 16 form, and any primary seal board group part 7 is between unsteady flow module 11 and lower door component 1, cabinet body frame
Frame 16 includes the column 1601 vertical with bottom deck assembly 15, any primary seal board group part 7 be located at 7 two sides of primary seal board group part
There are gap h between adjacent column 16013, same avoiding column 1601 of the primary seal board group part 7 with cabinet body frame from interfering
When, play the role of reinforcing sealing to the 4th cavity 8004.Preferred gap h3Value range be 1mm < h3< 3mm, gap h3
It is excessive, it can not play the role of reinforcing sealing to the 4th cavity 8004, to reduce the air quantity for passing through unsteady flow module 11, reduce
Radiating efficiency；Gap h3It is too small, make primary seal board group part 7 be easy to interfere tearing open for influence primary seal plate with column 1601
It unloads.In the present embodiment, primary seal board group part 7 uses removable connector during installation, and primary seal board group part 7 is towards top plate member
4 one end is affiliated on three welding screw rods 17, and primary seal board group part 7 passes through two active locks towards one end of bottom deck assembly 15
Button 18 is fixed on cabinet body frame 16, in subsequent experimental debugging or maintenance, it is only necessary to move two activity locks 18 just
It can remove and take out primary seal board group part 7.Handle 19 is equipped on primary seal board group part 7 to further increase high-power converter
The maintainability of cabinet.The structure of third sealant is as shown in Fig. 3, Fig. 7.
Since 6 11 volumes of unsteady flow module are larger, entire 4th cavity 8004 is almost occupied, and in fan assembly 3
Blower is radiated using centrifugal blower centralized supply wind, thus leads to not the consistency for guaranteeing the intake of each unsteady flow module 11,
And then cause each 11 temperature rise of module inconsistent.Preferably, in the present embodiment, the height of the second cavity is h1, from the second chamber
The distance away from the nearest position of the second cavity to two cavity bottoms is h in the nearest unsteady flow module of body2, by height h1It is set as h1>
100mm, will distance h2It is set as h2> 300mm, by controlling height h1With distance h2Value range to improve each unsteady flow module
The uniformity of 11 intake, so that the temperature rise of each unsteady flow module 11 reaches unanimity, and then by the temperature of each unsteady flow module 11
Rise difference control within the acceptable range.Fig. 8 shows the hot simulated temperature cloud charts of unsteady flow module 11 in the present embodiment,
Temperature unit " C " expression degree Celsius in Fig. 8.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, it can be carried out it is various improvement and can be with equivalent substitution of some or all of the technical features.Especially,
As long as logic or structural conflict is not present, items technical characteristic mentioned in the various embodiments can combine in any way
Come.The invention is not limited to specific embodiments disclosed herein, but all skills including falling within the scope of the appended claims
Art scheme.
Claims (11)
1. a kind of high-power converter cabinet, which is characterized in that including cabinet body and fan assembly, the inner space of the cabinet body is divided into
Bottom, middle layer and upper layer are further divided into five cavitys, respectively the first cavity, the second cavity, third chamber on this basis
Body, the 4th cavity and the 5th cavity；
5th cavity is located at bottom, and the 4th cavity is located at middle layer, first cavity, the second cavity and third cavity
It is respectively positioned on upper layer, wherein the second cavity is located at the middle part on upper layer, and the first cavity and third cavity are located at the two sides on upper layer, and first
Secondary control element is placed in cavity and third cavity, is non-heat-dissipating space, and unsteady flow module is located at the 4th cavity；
The fan assembly, which is located at the top of cabinet body, to be centrally arranged；
Blower in the fan assembly concentrates exhausting, and extraneous cold wind is introduced into the 5th cavity of bottom, and successively by the
Enter fan assembly after four cavitys and the second cavity, is expelled to high-power converter eventually by the air outlet of fan assembly surrounding
The outside of cabinet.
2. high-power converter cabinet according to claim 1, which is characterized in that the air outlet of the fan assembly surrounding is
Steel wire is mesh-structured.
3. high-power converter cabinet according to claim 1, which is characterized in that the surrounding of the fan assembly is outlet air
Part, the air outlet are arranged on outlet air part, the outlet air part between one end and top plate member of top plate member there are
Gap.
4. high-power converter cabinet according to claim 3, which is characterized in that the outlet air part is close to the one of top plate member
Gap between end and top plate member is h, then 5mm < h < 10mm.
5. high-power converter cabinet according to claim 1, which is characterized in that the unsteady flow module is phase module, unsteady flow
The waveform of module is three level, and the quantity of unsteady flow module is 6, a wherein phase for each unsteady flow module connection three phase mains, with 3
A unsteady flow module is one group and 6 unsteady flow modules is divided into two groups, and each group includes mutually different three of three phase mains
Phase.
6. high-power converter cabinet according to claim 1, which is characterized in that the cabinet body is divided into three-layer sealed structure；
First sealant is the outermost sealant of cabinet body, and the inner space of cabinet body is formd by the sealing of the first sealant；
Second sealant be cavity parting seal layer, by the second sealant by interior of the cabinet space be divided into bottom, middle layer and
Upper layer and five cavitys based on this；
Third sealant is the sealing enhancement layer of the 4th cavity, reinforces the sealing performance of the 4th cavity by third sealant, from
And increase the air quantity for passing through unsteady flow module.
7. high-power converter cabinet according to claim 6, which is characterized in that first sealant is by two opposite cloth
Lower door component, the two upper door components positioned opposite, two lateral plate components positioned opposite, a top plate member, one set
Bottom deck assembly, cabinet body frame and several sealing strips composition；The bottom deck assembly is located at the bottom of the 5th cavity, each descends door component
Adjacent with bottom deck assembly, any lower door component includes two filter at air inlet, and door component once in office installs side, the Xiamen group
One end that part installs the upper door component of side is adjacent with the lower door component, the other end of the upper door component of lower door component installation side and
Top plate member is adjacent；
One end of any lateral plate component is adjacent with bottom deck assembly, and the other end is adjacent with top plate member；Upper door component and lower door component
It is respectively positioned between two lateral plate components positioned opposite；
Sealing strip is arranged between lower door component and cabinet body frame, between upper door component and cabinet body frame, top plate member and cabinet body
Between frame and between lateral plate component and cabinet body frame.
8. high-power converter cabinet according to claim 6, which is characterized in that second sealant is by two opposite cloth
The first sealing partition, two transverse sealing partitions positioned opposite, the second sealing partition, a module support assemblies set
And several sealing strip compositions；
Module support assemblies separate the 4th cavity and the 5th cavity between the 4th cavity and the 5th cavity, while
It is the separator in bottom and middle layer；
Second sealing partition separates middle layer and upper layer, and upper layer is divided into and is located at by the first sealing partition and transverse sealing partition
The second chamber in the middle part of upper layer, and the first chamber and third chamber positioned at upper layer two sides；
Sealing strip setting is between the first sealing partition and transverse sealing partition, between transverse sealing partition and the second sealing partition
And first sealing partition and second sealing partition between.
9. high-power converter cabinet according to claim 6, which is characterized in that the third sealant is by two opposite cloth
Primary seal board group part and the cabinet body frame composition set, any primary seal board group part are located between unsteady flow module and lower door component, cabinet
Body frame includes the column vertical with bottom deck assembly, and any primary seal board group part is adjacent with the primary seal board group part two sides are located at
There are gaps between column.
10. high-power converter cabinet according to claim 9, which is characterized in that any primary seal board group part be located at should
Gap between the adjacent column in primary seal board group part two sides is h3, then 1mm < h3<3mm。
11. high-power converter cabinet according to claim 1, which is characterized in that the height of second cavity is h1,
In the unsteady flow module nearest from the second cavity away from a distance from the second cavity nearest position to two cavity bottoms be h2, then h1>
100mm, h2>300mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306074.6A CN110365191A (en) | 2018-04-08 | 2018-04-08 | A kind of high-power converter cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810306074.6A CN110365191A (en) | 2018-04-08 | 2018-04-08 | A kind of high-power converter cabinet |
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| CN110365191A true CN110365191A (en) | 2019-10-22 |
Family
ID=68213682
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810306074.6A Pending CN110365191A (en) | 2018-04-08 | 2018-04-08 | A kind of high-power converter cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038915A (en) * | 2020-09-03 | 2020-12-04 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
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|---|---|---|---|---|
| CN201113785Y (en) * | 2007-09-30 | 2008-09-10 | 九江整流器厂 | Frame aerated auxiliary cooling all=sealed type rectifier |
| CN203722256U (en) * | 2013-07-31 | 2014-07-16 | 湖南南车时代电动汽车股份有限公司 | Ground intelligent charger structure used for electric automobile |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113785Y (en) * | 2007-09-30 | 2008-09-10 | 九江整流器厂 | Frame aerated auxiliary cooling all=sealed type rectifier |
| CN203722256U (en) * | 2013-07-31 | 2014-07-16 | 湖南南车时代电动汽车股份有限公司 | Ground intelligent charger structure used for electric automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112038915A (en) * | 2020-09-03 | 2020-12-04 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
| CN112038915B (en) * | 2020-09-03 | 2022-06-28 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
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Application publication date: 20191022 |