CN102299613A - Cooling method of power converting device and power converting units - Google Patents
Cooling method of power converting device and power converting units Download PDFInfo
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- CN102299613A CN102299613A CN2011101805911A CN201110180591A CN102299613A CN 102299613 A CN102299613 A CN 102299613A CN 2011101805911 A CN2011101805911 A CN 2011101805911A CN 201110180591 A CN201110180591 A CN 201110180591A CN 102299613 A CN102299613 A CN 102299613A
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- 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 invention provides a cooling method of a power converting device and power converting units for restraining the numbers of fans in minimum limit in a power transforming dish accommodating a plurality of power converting units and ensuring the necessary air quantity of the units far away from the fans and lacking of air quantity easily. The power converting device parallelly accommodating a plurality of power converting units of different wind path resistances or heat productivities on a frame body surface comprises fans arranged on the frame body of the power converting device and absorbing air towards the interior of the frame body and exhausting air towards the exterior of the frame body via intake ports arranged on the power converting units respectively, an air duct airing the air passing through the power converting units to the exterior of the frame body, a fan exhausting air to the outside and also arranged in a locking room adjacent to the air duct, and a bypass wind path arranging a vent hole between the air duct and the locking room.
Description
Technical field
The present invention relates to the cooling means of power inverter and power conversion unit.
Background technology
Power inverter is to direct current and alternating current is changed mutually or the alternating current of assigned frequency is converted to the alternating current of optional frequency, but adopts the structure that the power conversions functional unitization is contained in framework recently mostly.Each unit is made of thyristors such as IGBT, but owing to this semiconductor switch generates heat because of controlling electric energy, so need to utilize and the corresponding cooling body of output capacity.For example, under the situation that adopts air cooling, make its heat radiation by making distinguished and admirable supercooling fin, thereby the temperature that suppresses thyristor rises.
In addition, containing under the situation of a plurality of power conversion unit, needing respectively each power conversion unit to be guaranteed necessary cooling air quantity.At this, each power conversion unit makes it vary in size because of output capacity etc.Therefore, accommodating under the situation of a plurality of this power conversion unit, need implement the cooling corresponding in fluid resistance each power conversion unit different with output capacity with the allowable temperature of thyristor.
For this reason, for example as TOHKEMY 2006-311679 communique is put down in writing, be respectively arranged with fan,, can expect adopting the technology of the action of adjusting fluid resistance or fan for each unit being guaranteed necessary cooling in each power conversion unit.
[patent documentation 1] TOHKEMY 2006-311679 communique
At this, about above-mentioned technology in the past, owing in each power conversion unit, be provided with fan, so exist and often to carry out the maintenance issues that causes because of fan failure, therefore, though can expect each unit not being provided with fan respectively but jointly use the scheme of fan air blast by the power conversion unit of regulation, but, can produce following problem in this case, promptly, coolant flows to the unit near apart from fan easily, and wind is difficult to supply to the unit far away apart from fan etc., and is inhomogeneous thereby the circulation of coolant becomes.
Summary of the invention
The object of the present invention is to provide and a kind ofly can suppress less and can realize the power inverter of cooling balance of power conversion unit and the cooling means of power conversion unit containing number of fans in the power inverter of a plurality of power conversion unit.
In order to reach above-mentioned purpose, power inverter of the present invention has: framework, be contained in a plurality of power conversion unit of described framework, the air duct that coolant by each described a plurality of power conversion unit flows through jointly, the fan that the coolant of described air duct is moved, in described framework, be formed with the space that is separated out by described air duct and partition wall, the path mouth that described power inverter also has second fan that the coolant that makes in the described space moves and is provided with on described partition wall in the mode of the flow of regulating the coolant by described a plurality of power conversion unit.
By adopting this structure, utilize the present invention will contain the cooling balance that number of fans in the power inverter of a plurality of power conversion unit suppresses less and can realize power conversion unit.
Description of drawings
Fig. 1 is the stereogram of the power converter dish of embodiments of the invention 1.
Fig. 2 is the end view of the power converter dish of embodiments of the invention 1.
Fig. 3 is the cutaway view of the power converter dish of embodiments of the invention 1.
Fig. 4 is the vertical view of the converter unit of embodiments of the invention 1.
Fig. 5 is the perspective view of the power converter dish of embodiments of the invention 1.
Fig. 6 is the end view of the converter unit of embodiments of the invention 1.
Fig. 7 is the end view of the cold sink of embodiments of the invention 1.
Fig. 8 is the figure of necessary crushing characteristic of the converter unit of expression embodiments of the invention 1.
Fig. 9 is the unbalanced comparison diagram of the air quantity of embodiments of the invention 1.
Figure 10 is the power converter dish figure of embodiments of the invention 2.
Figure 11 is the power converter dish figure of embodiments of the invention 3.
[symbol description]
1 transforming disk
2 element cells
3 fans
3-1 cold sink (first fan)
3-2 Fill helps fan (second fan)
4 air ducts
Main circuit chambers (interchange) 5
10 control parts
11 air entries
30a A unit
30b B unit
30c C unit
31?IGBT
33 air cleaners
34 electrolytic capacitors
35 buses
36 contactors
37,38,321 demarcation strips
39 ventilation holes
322 insulation demarcation strips
323 heat sink plate thickness
324 fin at interval
Embodiment
Below, use accompanying drawing that the execution mode of air cooling converter of the present invention is described.
[embodiment 1]
Fig. 1 represents transforming disk of the present invention, and transforming disk 1 comprises element cell 2, fan 3 (3-1,3-2), air duct 4, main circuit chamber 5 etc.Transforming disk 1 is the metal framework, though mainly adopt stainless steel etc., is made of metal usually.The local situation that adopts iron etc. is also arranged in addition.In the element cell 2, the converter unit 30 (30a-1,30a-2,30a-3,30a-4,30b-1,30b-2,30c) that can plug in transforming disk 1 is piled up along short transverse.Unit 30 has 3 kinds of structures according to output capacity, become A unit 30a (30a-1,30a-2,30a-3,30a-4), B unit 30b (30b-1,30b-2), C unit 30c according to from small to large order, on each unit, be respectively arranged with air entry 11 (11a-1,11a-2,11a-3,11a-4,11b-1,11b-2,11c).In the present embodiment, the depth length of A, B, C unit obtains unified.B unit 30b compares with A unit 30a, and its height is identical with depth, and only width is 2 times of A unit, and C unit 30c compares with A unit 30a, its width with highly be 2 times of A unit.In addition, according to situation also exist depth for ununified limit height, width by unified situation.About the structure of inside, unit, will be described in detail later.
In element cell 2, to as the A unit 30a of the least unit of short transverse or the height that B unit 30b guarantees 10 grades amount.Since C unit 30c with two-stage as 1, so can pile up 5 grades amount at most.Carry under the situation on the transforming disk 1 at A unit 30a only, because per 1 grade can be piled up 2, so on a transforming disk 1, can carry 20 A unit 30a at most.Because the number of the unit of transforming disk 1 inside and the expectation that configuration depends on output capacity and client, the situation of vacant level appears so also have A～C unit 30a, 30b, 30c to mix to exist, and the unit combination of transforming disk 1 inside has tens thousand of kinds.Under above-mentioned all situations, all must guarantee necessary air quantity to the whole unit in the transforming disk in theory, need make the air quantity optimization.The weight of 30 inside, unit is A unit 30a＜B unit 30b＜C unit 30c, so the operation when improving unit 30 plug and preferably carry A unit → B unit → C unit successively from the higher level.
Below, be that example describes with the air to coolant, yet, also can for example the transforming disk integral sealing be adopted other fluids.Control part 10 in the bottom of element cell 2 contains not shown various power supplys and control distribution etc.Have air duct 4 at the back side of element cell 2, portion contains dc bus and control distribution (not shown) within it.Be provided with ceiling fan 3 (3-1,3-2) (for example ceiling fan 3-1 is called " first fan ", ceiling fan 3-2 is called " second fan ", below same) on the top of air duct 4.Fan 3 is not arranged on 30 inside, unit, but unified being arranged on the ceiling.Each unit 30 is being provided with under the situation of fan, though guarantee air quantity easily, owing to the replacing of often carrying out causing, so configuration like this because of fan failure.In addition, so owing in the unit, do not have fan can also dwindle the space.In the structure of air quantity and crushing deficiency, the situation of or series connection use a plurality of ceiling fans in parallel on the top of air duct 4 is arranged also.The path of wind 9 constitutes, and utilizes ceiling fan 3 to suck air uniformly, and this air is via common air duct 4, and sucks via a plurality of power conversion unit 30 of arranging side by side with respect to air duct 4.But, only being provided with under the situation of ceiling fan at air duct, the air quantity that flows through the unit of upper and lower produces uneven.For example, only under the situation with a kind of unit, the wind speed that flows in upper unit uprises in multistage lift-launch, and the wind speed of supplying with to distance fan lower unit far away is little.
Therefore, the structure that air quantity is preferentially supplied with in the fan subordinate unit far away of adjusting the distance is below described.In this structure, as shown in Figure 3, on the ceiling of the main circuit chamber 5 adjacent, fan 3 is set also with air duct 4.In addition, ventilation hole 39 (perhaps be also referred to as " path mouth ", below same) is set between air duct 4 and main circuit chamber 5.Ventilation hole 39 be arranged on distance be arranged on fan 3 unit farthest on the air duct 4 near.Thus, form wind path via the ventilation hole 39 between air duct 4 and the main circuit chamber 5 from the subordinate unit by the ceiling fan air-supply of main circuit chamber 5.
At this, with the fan of air duct chamber ceiling as the first fan 3-1, with the fan of main circuit chamber ceiling as the second fan 3-2 (both are collectively referred to as and remember work " fan 30 ", below same).The first fan 3-1 is used for from whole unit air-breathing, and the auxiliary air-supply of carrying out from the subordinate unit of the second fan 3-2 thus, is compared the performance that needs to improve first fan with the second fan 3-2.Generally speaking, fan performance is in proportion with fan, so the first fan 3-1 is bigger than the second fan 3-2.
Like this, on each unit 30, fan is not set respectively but is taken into cooling air uniformly, thereby can prevent the regular maintenance that causes because of maximization that the transforming disk 1 that fan causes is set or because of fan failure on each unit 30 by the fan 3-1 that is configured on the ceiling.
On the other hand, in containing the transforming disk of polytype power conversion unit, singlely attract cooling air uniformly to a plurality of ceiling fans 3 and under the situation of each unit 30a, 30b, 30c air-supply, different each unit 30a, 30b, the 30c of output capacity needs different cooling air quantities utilizing as described above.For this reason, producing some unit has born the residue air quantity and has caused the unbalanced problem of temperature between the unit.In addition, for each unit 30a, 30b, 30c are guaranteed necessary air quantity, also there is the problem of fan 3 maximizations that are arranged on ceiling.
In the present embodiment, on each unit 30a, 30b, 30c, fan is not set, is taken into cooling air uniformly, in addition, structure, especially cold sink in each unit 30a, 30b, the 30c are designed to structure for transforming disk 1 optimum by ceiling fan 3.Thus, subdue the residue air quantity, prevent the maximization of ceiling fan 3, the result can realize the miniaturization of transforming disk 1.Below, the structure in the unit 30 and the method for designing of cold sink are described.
Below, unit 30 internal structures are described.Fig. 5 is the concise and to the point example of the vertical view of unit 30, and Fig. 6 represents its end view.Each unit 30 comprises: as the IGBT of thyristor (need to prove, can certainly use the switch element beyond the IGBT) 31, be installed on IGBT31 and cold sink 32 that heat that IGBT31 is produced dispels the heat, remove parts such as the air cleaner 33 of dust etc., electrolytic capacitor 34, bus (bus bar) 35, contactor 36 from attracteding to air in the unit.Aspect electric, the electric power of commercial ac power source guides and smoothedization to electrolytic capacitor 34 via contactor 36.Electric power after the smoothing, and converts optional frequency to by IGBT31 and exports to IGBT31 guiding via bus 35.Cold sink 32 is configured in air duct 4 sides, and air cleaner 33 is configured on the suction face via air entry 11 ground.At this moment, dispose demarcation strip 37, make the wind that flows to air duct 4 must pass through cold sink 32 in the mode of surrounding cold sink 32.In addition, electrolytic capacitor 34 is configured in before the air cleaner 33, does not have by width, the height of adjusting air cleaner electrolytic capacitor 34 is contacted with cooling air with omitting.According to output capacity, differences such as the size of each parts of unit 30 and number.
In addition, by utilizing demarcation strip 38 isolation contactors 36 and electrolytic capacitor 34 can carry out the component adjustment of air quantity.Because wind 9 is inhaled into cold sink 32 from contactor 36, so to cold sink 32 ventilation hole 39 is set from contactor 36.At this, the ventilation quantity by contactor 36 sides can be adjusted to suitable value by the size of adjusting ventilation hole 39.By forming this structure, whole wind is bound to by air cleaner and cold sink, can adjust the wind that flows to electrolytic capacitor 34 and contactor 36 by air cleaner and demarcation strip 38.But the purpose for protection also has the situation that does not have contactor 36.
Next, use Fig. 7 that the shape of cold sink 32 is described.In the present embodiment, be suitable for ripple (corrugate) fin as an example, but also can adopt other fin shape.Surround the two sides of cold sink 32 with demarcation strip 321.At this moment, though the material of demarcation strip 321 can be any material, still preferably adopt glass epoxide material, phenolic plastics for reinforced insulation.On the bottom surface, be used to avoid the insulation demarcation strip 322 of shorted to earth.Though, be fit to use glass epoxide material, phenolic plastics so long as the material of insulation against ground and thickness get final product.
At this, the air quantity optimization of each unit 30 is described.Necessary air quantity is meant that the difference that is confirmed as with the allowable temperature of IGBT31 becomes 10 ℃ with interior this cooling air quantity.For example, for the situation that the allowable temperature of IGBT31 is 120 ℃, make it become the cooling air quantity of 110 ℃～120 ℃ temperature.Cooling air quantity changes according to wind speed and heat radiating fin structure.Necessary crushing is meant the pressure loss that each unit 30 integral body is born in order to flow through the air quantity of MIN necessity to cold sink 32.The pressure loss that unit 30 integral body are born for from as the air cleaner 33 of the inflow entrance of wind to as the pressure loss the cold sink 32 of flow export.Pressure as the air cleaner 33 of the inflow entrance of wind is external pressure.
Fig. 8 be illustrated in cold sink 32 for ripple type and utilize and surround (Wall い Write body) mode twists the necessary pressure loss under the condition of present embodiment of inlet air with respect to the fin curve chart of 324 interdependence at interval.Dotted line among the figure represents to be accompanied by the fin relation of the unit crushing Δ P (longitudinal axis) that bears of the A unit 30a of 324 variation and unit air quantity Q (transverse axis) at interval, and this concerns that formula described as follows (1) expresses.Wherein, R is the wind path resistance of A unit 30a.
Δ P=RQ
2Formula (1)
Dotted line among the figure represents, if fin at interval 324 narrow down the wind path resistance R of A unit 30a then become big, if fin 324 situations that the wind path resistance R of A unit 30a then diminishes that broaden at interval.According to Figure 11 as can be known, even identical unit crushing Δ P, fin 324 wide sides at interval flows through more unit air quantity Q at A unit 30a.On the other hand, under heat sink plate thickness 323 is constant situation, if fin 324 broadens at interval, being provided with that the space reduces of fin and the sheet number of fin reduces correspondingly then.For this reason, the minimizing because of fin sheet number descends the radiating efficiency of cold sink 32 integral body.
Like this, as the solid line among Fig. 5, simulate the necessary pressure loss of A unit 30a, thereby obtain the necessary crushing characteristic of A unit 30a according to the fin interval 324 and the relation of unit air quantity Q and fin sheet number.According to this necessity crushing characteristic as can be known, the necessary crushing of A unit 30a has minimum.For example, form at heat sink plate thickness 323 under the situation of 0.6mm, fin at interval 324 between 1.8mm～2.9mm minimalization, in this scope, necessary crushing can be restricted to minimum necessary crushing+20%.In addition, in the present embodiment, though the necessary pressure loss and fin relation is at interval simulated, suc as formula (1) like that the pass of pressure loss P and air quantity Q be 1 pair 1, so necessary crushing characteristic is also represented the relation at air quantity Q and fin interval.
When carrying out above-mentioned simulation, the different value of minimum necessary crushing is represented in each unit in each unit 30.Generally speaking, works is more little, and the wind path resistance is big more and the also easy more change of output density is big, so the unit is more little, and the easy more change of minimum necessary crushing is big.That is, among the minimum necessary crushing of whole unit 30, it is maximum that the minimum necessary crushing of the A unit 30a of structure minimum becomes.Under the structural condition of present embodiment, under the situation of the distribution of ignoring the pressure inside loss of air duct 4 (for example pressure loss or the friction loss that produces because of the interflow), unit at different levels bear the equal pressure loss.So, by satisfying the minimum pressure loss of minimum unit, thereby can satisfy the necessary pressure loss of other whole unit 30.
At this,, can expect in other unit, producing remaining cooling air quantity because the necessary pressure loss existence of the minimum of the necessary pressure loss of minimum unit and other unit is poor.If remaining air quantity flows, then cause the non-uniform temperature between each unit 30, and for guaranteeing that air quantity causes the maximization of ceiling fan 3.Therefore, in other unit 30 beyond the minimum A unit 30a, be increased near the minimum necessary pressure loss of minimum unit by making the above-mentioned necessary pressure loss, thereby reduce necessary air quantity.
Particularly, in B unit 30b and C unit 30c, obtain the necessary crushing characteristic (part that is equivalent to the solid line of Fig. 6) of each unit, thereby design the fin interval 324 corresponding with the minimum necessary pressure loss of A unit 30a by above-mentioned simulation.In addition,, change the wind path resistance of B unit 30b, C unit 30c, make necessary crushing consistent with the minimum of the necessary pressure loss of minimum A unit 30a by the area of air cleaner 33, material, thickness etc. are adjusted.
For example use the example that on transforming disk 1, respectively carries an A unit 30a and B unit 30b, compare with the situation that produces the residue air quantity.The necessary pressure loss that Fig. 9 (b) illustrates B unit 30b for the minimum of the necessary pressure loss of A unit 30a becomes 80% situation.But the dotted line among the figure is represented the necessary air quantity Q that the cooling of each unit is required, the air quantity Q that the histogram graph representation among the figure flows to each unit.Shown in Fig. 9 (b), when A unit 30a bore the necessary pressure loss, B unit 30b bore the remaining pressure loss, thereby the residue air quantity flows.When necessary crushing difference surpasses ± 20% in the big transforming disk structure of residue air quantity change, may surpass the capacity limit of the fan that can carry.
On the other hand, shown in Fig. 9 (a) each unit 30 is designed to the complete non-existent situation of difference of the necessary pressure loss of the minimum of the necessary pressure loss of A unit 30a and B unit 30b.Shown in Fig. 9 (a), under the complete non-existent situation of difference of the necessary pressure loss of the minimum of the necessary pressure loss of A unit 30a and B unit 30b, appropriate necessary air quantity can flow.That is, by consistent with the minimum of the necessary pressure loss of A unit 30a, necessary crushing difference that can each unit enough is suppressed to the scope promptly in ± 20% that is no more than the fan ability.
It is lower than the pressure loss that higher level's converter unit 30 bears to be positioned at the pressure loss that the converter unit 30 of the subordinate of the position far away apart from ceiling fan 3 bears.In this case, by at interval 324 to be designed to the necessary crushing of converter unit 30 of subordinate lower than the necessary crushing of higher level's converter unit 30 with fin, can eliminate the problem of above-mentioned pressure loss difference.
In above present embodiment, will be contained in the depth unification of each unit 30 of transforming disk 1, obtain the necessary crushing characteristic of the necessary pressure loss of unit 30 with respect to the fin interval 324 of cold sink 32.According to the necessary crushing characteristic of obtaining, become minimum by fin interval 324 is specified to necessary crushing, thereby can guarantee cooling air quantity effectively.
In addition, in the transforming disk 1 that contains a plurality of dissimilar converter units 30, with respect to the unit of output density, wind path resistance maximum, the cold sink in the unit 32 is designed to cool off the required pressure loss becomes minimum.Thus, owing to can satisfy the necessary pressure loss of other all converter units 30, thus each unit be need not to be provided with fan, thus the miniaturization that can improve maintainability and realize transforming disk.
In addition, in other unit 30, and be designed to necessary crushing and become minimizing unit 30 and be complementary, cold sink 32 is designed so that necessary pressure loss unanimity.Thus, the residue air quantity obtains cutting down, and need not the fan that uses output big for the fan 3 of ceiling, and the result is the miniaturization that can help realizing transforming disk 1.
[embodiment 2]
Use Figure 10 that embodiment 2 is described.Only different parts is described, same part is omitted explanation.In the accompanying drawings, the symbol 30a of A unit and embodiment 1 is same, and B unit and symbol 30b are same, and C unit and symbol 30c are same.The part different with the foregoing description described, but same part is then omitted explanation.In embodiment 2, be provided with the second fan 3-3 at control part 10.In this case, by between air duct 4 and control part 10, be provided with ventilation hole 39 ', preferentially air-breathing in the unit of subordinate.According to present embodiment, can be simultaneously each equipment of control part be cooled off.
[embodiment 3]
Use Figure 11 that embodiment 3 is described.In embodiment 3,, between air duct chamber and main circuit chamber, ventilation hole 39a～39c is set as embodiment 1.But ventilation hole is provided with a plurality of as shown in Figure 11.That is, with A unit, B unit, opposed respectively position, C unit be provided with ventilation hole (greatly) 39a, ventilation hole (in) 39b, ventilation hole (little) 39c.The area of ventilation hole diminishes more to top more, becomes big more to the bottom more.Thus, can preferentially increase air quantity to underfeed.
Below, main points to present embodiment describe once more, be contained in side by side in the power inverter of framework face in a plurality of power conversion unit, have: fan, it is provided on the framework of described power inverter, and attracts air via each described power conversion unit to the inside of described framework; Air duct, it makes air by described power conversion unit to the external ventilation of described framework, and, by at the indoor fan that the air that attract described framework inside also be set adjacent with air duct, between the chamber adjacent, ventilation hole is set, thereby has the bypass wind path with air duct.
In addition, be arranged on cold sink in the described power conversion unit be designed so that to be used to obtain the required minimum necessary limit of the cooling of each power conversion unit air quantity the necessary pressure loss difference about equally.
In addition, be contained in the framework face and in described a plurality of power conversion unit, attract in the power inverter of cooling air in a plurality of power conversion unit by the fan that is arranged on the described framework, for the second described power conversion unit that is positioned at the farther position of the described fan of distance than the first described power conversion unit, the necessary pressure loss of air quantity that the cold sink in this second power conversion unit is designed for obtaining the required minimum necessary limit of the cooling of described second power conversion unit is lower than the described necessary pressure loss of described first power conversion unit.
In addition, be contained in the power converter dish and via the air entry on the elemental area that is arranged on self air passed through in the power conversion unit of cold sink, the fin of described cold sink is designed to the required pressure loss of the required pressure loss of the cooling of this power conversion unit and the cooling of other power conversion unit that are contained in described power converter dish about equally at interval.
In addition, according to the fin that is arranged on the cold sink in first power conversion unit at interval and the relation of the required necessary pressure loss of this first power conversion unit of cooling, described fin is designed at interval the described necessary pressure loss about equally with the necessary pressure loss of other power conversion unit that are contained in the power converter dish with described first power conversion unit.
Like this, in containing the power converter dish of a plurality of power conversion unit,, the ventilation road from second fan by-pass is set in its vicinity, can realizes the miniaturization of power converter dish with respect in distance first fan unit far away.
Claims (9)
1. power inverter, it has: framework, be housed in a plurality of power conversion unit in the described framework, air duct that each coolant by described a plurality of power conversion unit flows through jointly, fan that the coolant that makes described air duct moves, in described framework, form the space that is separated out by described air duct and partition wall, described power inverter is characterised in that
Also have second fan that the coolant that makes in the described space moves and be arranged on path mouth on the described partition wall in the mode of the flow of regulating the coolant by described a plurality of power units.
2. power inverter according to claim 1 is characterized in that,
Described coolant is an air, and described a plurality of power conversion unit are configuration up and down mutually, and described air duct constitutes and makes described air be discharged to the outside of described framework.
3. power inverter according to claim 2 is characterized in that,
Described air duct is adjacent with described space, is discharged to the outside of described framework by described second fan by the air of described path mouth.
4. power inverter according to claim 1 is characterized in that,
Described path mouth and distance are arranged on the adjacent setting of fan power conversion unit farthest on the described air duct.
5. power inverter according to claim 1 is characterized in that,
Described path mouth is provided with a plurality of, and constitutes big more apart from the aperture area of fan then path far away more mouth.
6. according to any described power inverter in the claim 1～5, it is characterized in that,
Described second fan is littler than described first fan.
7. according to any described power inverter in the claim 1～6, it is characterized in that,
Described space is arranged on the below of described air duct.
8. power inverter according to claim 7 is characterized in that,
In described space, contain the control part of the action of the described power conversion unit of control.
9. the cooling means of a power conversion unit, it makes the coolant by being housed in a plurality of power conversion unit in the framework flow through air duct jointly, and the cooling means of described power conversion unit is characterised in that,
Apply the power that the coolant that makes described air duct moves, in described framework, form the space that is separated out by described air duct and partition wall, be arranged on path mouth on the described partition wall and regulate flow by the coolant of described a plurality of power conversion unit by applying the power utilization that the coolant in the described space is moved.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-144406 | 2010-06-25 | ||
| JP2010144406A JP5309089B2 (en) | 2010-06-25 | 2010-06-25 | Power conversion device and cooling method for power conversion unit |
Publications (2)
| Publication Number | Publication Date |
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| CN102299613A true CN102299613A (en) | 2011-12-28 |
| CN102299613B CN102299613B (en) | 2014-04-02 |
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| CN201110180591.1A Active CN102299613B (en) | 2010-06-25 | 2011-06-24 | Cooling method of power converting device and power converting units |
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| CN103902756A (en) * | 2012-12-29 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Fan selection system and method |
| CN106416445A (en) * | 2014-06-04 | 2017-02-15 | 东芝三菱电机产业系统株式会社 | Power apparatus |
| CN107294355A (en) * | 2016-03-30 | 2017-10-24 | 株式会社日立制作所 | Power-converting device |
| CN110783289A (en) * | 2019-11-04 | 2020-02-11 | 汉斯自动化科技(江苏)有限公司 | IGBT module protection device |
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| JP5914689B2 (en) * | 2012-10-30 | 2016-05-11 | 株式会社三社電機製作所 | Fan control device and power conditioner |
| JP6098119B2 (en) * | 2012-10-31 | 2017-03-22 | 富士電機株式会社 | Cooling device for power converter |
| KR20150025755A (en) | 2013-08-30 | 2015-03-11 | 엘에스산전 주식회사 | Apparatus for cooling inverter |
| JP6285299B2 (en) | 2014-07-07 | 2018-02-28 | 東芝三菱電機産業システム株式会社 | Semiconductor device |
| KR102064247B1 (en) | 2018-01-30 | 2020-02-11 | 엘에스산전 주식회사 | Inverter and method for controlling thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902756A (en) * | 2012-12-29 | 2014-07-02 | 鸿富锦精密工业（深圳）有限公司 | Fan selection system and method |
| CN106416445A (en) * | 2014-06-04 | 2017-02-15 | 东芝三菱电机产业系统株式会社 | Power apparatus |
| CN107294355A (en) * | 2016-03-30 | 2017-10-24 | 株式会社日立制作所 | Power-converting device |
| CN107294355B (en) * | 2016-03-30 | 2019-07-05 | 株式会社日立制作所 | Power-converting device |
| CN110783289A (en) * | 2019-11-04 | 2020-02-11 | 汉斯自动化科技(江苏)有限公司 | IGBT module protection device |
| CN110783289B (en) * | 2019-11-04 | 2023-03-24 | 汉斯自动化科技(江苏)有限公司 | IGBT module protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012009636A (en) | 2012-01-12 |
| CN102299613B (en) | 2014-04-02 |
| JP5309089B2 (en) | 2013-10-09 |
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