CN104105382B - Fin and the power inverter including the fin - Google Patents
Fin and the power inverter including the fin Download PDFInfo
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- CN104105382B CN104105382B CN201410073241.9A CN201410073241A CN104105382B CN 104105382 B CN104105382 B CN 104105382B CN 201410073241 A CN201410073241 A CN 201410073241A CN 104105382 B CN104105382 B CN 104105382B
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- fin
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- air entry
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- adjustable plate
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Abstract
The present invention provides a kind of fin, do not only have the air entry of fin face side, multiple air entries are newly also set on the arbitrary side from fin front to the centre at the fin back side, and air entry is set on the arbitrary bottom surface from fin front to the centre at the fin back side, it is configured to obtain the air newly sucked from each air entry between the upstream side of fin and downstream.Can be from multiple air entry air-breathings of the arbitrary side or bottom surface of the centre at front to the back side for being arranged at fin, thus from the outside fresh air of any part suction inside fin, turbulent flow occurs because of the collision for the two kinds of air draught vectors that the surface side air gone and the air that is sucked on the direction at a right angle with it from other multiple air entries formed of being supported or opposed from the air entry of a side.
Description
Technical field
The present invention relates to fin and the power inverter for possessing the fin.
Background technology
In general, power inverter is made up of following sections：Input transformer；Connect with the secondary end of the transformer
Fetch the multiple unit inverter units for forming inverter circuit；Independent closed disk is accommodated in control unit is separated respectively
In distribution board.For example, in power inverter described in following patent documents 1, input transformation is accommodated with transformer disk 1
Device 4, the multiple of levels arrangement are stored in converter disk 2（Example illustrated is 6）Unit inverter unit 5, control/
Control unit 6, output cable 7 are accommodated with output panel 3.
In addition, transformer disk 1 and converter disk 2 are provided with cooling fan 8,9 at the top of disk, will for converter disk 2
The extraneous air being imported into by the air entry 2a-1 with filter of the positive door 2a openings in disk in disk（Cooling air）To
Each wind-guiding of inverter unit 5, the discharge air is divided into the wind-tunnel 10 formed to cooling fan by the rear portion side in disk
9th, the discharge duct being connected with the cooling fan 9（It is not shown）Discharge.
In addition, in the prior art, fin is set in inverter unit for air cooling semiconductor module/element,
In the case of cooling down the fin by forced air-cooling, air is sucked using from any one side, is bypassed air through in fin,
The structure of warm air is discharged from the face of its opposite side.
Fig. 1 is the integrally-built figure for representing commercially available existing variable speed drive conversion work platform.That is, Fig. 1（a）It is table
Show the integrally-built front elevation of conversion work platform, Fig. 1（b）It is from expression Fig. 1（a）The overall structure of shown conversion work platform
The side cross-sectional view seen of A-A portions.
Such as Fig. 1（a）With（b）It is shown, in conversion work platform 2, it is usually provided with multiple brackets（It is not shown）, in the bracket
Unit 3 shown in upper carrying Fig. 2.In the upper surface placing ventilation fan 1 of conversion work platform 2, and in the inside of conversion work platform 2,
Multiple units 3 are arbitrarily configured on bracket.
As shown in Fig. 2 fin 4, wind-tunnel 5, the and of semiconductor module/element 6 are configured with inside each unit 3（Cylinder type）
Capacitor 7.Ventilation fan 1 is started working, and forces to produce air draught inside conversion work platform 2（It is indicated by arrows in Fig. air
Air-flow）, pass through Fig. 1（b）Shown fin 4, the air draught through ventilation fan 1 is produced by wind-tunnel 5.This is to obtain
Compulsory air draught and the heating of the power loss to occurring in semiconductor module/element 6 during caused electrical power conversion are entered
Row forced air-cooling, make heat to the structure of outside escape.
Fig. 3 is the figure for the overview for representing the air draught inside unit, Fig. 3（a）It is the plane for the inside for representing unit 3
Figure, Fig. 3（b）It is from expression Fig. 3（a）The side cross-sectional view that the B-B portions of the structure of the inside of shown unit are seen.
Such as Fig. 3（a）With（b）It is shown, the face side indicated by an arrow passed through in the fin 4 being arranged inside unit 3
The extraneous air of set air entry 8, by the fin 4 inside unit 3 and wind-tunnel 5 and the air gas before being discharged
Stream, such as Fig. 3（b）It is shown, downwind side（Exhaust）With weather side（Air-breathing）Raised compared to temperature.
In the case, ventilation fan 1 is started working, and thus, inside unit 3, extraneous air is sucked from air entry 8, it
Wind-tunnel 5 is entered by the inside stream of fin 4, is vented from wind-tunnel 5 to ventilation fan 1.
Semiconductor module/element 6 be configured with the upper face of fin 4 it is multiple, from caused by semiconductor module/element 6
Heat is passed to inside fin 4 by heat transfer, and the heat transmitted is cooled by forced air-cooling.
If the type of cooling of the forced air-cooling using this fin 4, such as Fig. 3（b）It is shown, it is multiple from what is configured
Heat caused by semiconductor module/element 6, the more downstream toward the air draught inside fin 4（Exhaust side）, it is easier by
To upstream side（Suction side）Heat influence, even if being configured on identical fin 4, there is also produce local temperature rise
Position it is such the problem of.The electricity occurred in addition, because main circuit is different, during the electrical power conversion that semiconductor module/element 6 occurs
The deviation of power loss amount, it still can produce local high temperature position.Occur when the configuration of semiconductor module/element 6, electrical power conversion
The deviation of power loss amount be restricted because of the connection with external interface, the relation of product specification, need to be under the restriction condition
Determine allocation position.
Temperature deviation problem caused by semiconductor module/element 6 is local temperature rise, must in order to solve the problem
These following countermeasures must be taken：（A）Improve the specification of the ventilation fan 1 for the upper surface for being arranged at conversion work platform 2（Increase entirety
Air quantity is to improve wind speed）,（B）In order to reduce the resistance to heat of fin 4 and enlarged shape size（Increase and the contact surface of air
Product）.
These countermeasures are taken, position really high to local temperature is effective, but then, will not be raised in local temperature
Other positions, then become superfluous equipment, the overall efficiency of conversion work platform reduces, and causes increase and the whole device of cost
Maximization.
If the forced air-cooling mode of existing fin, the air in fin is certain wind in a certain direction
The air draught of speed（Laminar flow）.Because of relation semiconductor module/element with the interface of external component（Heater）Configuration by
Restrict, it is impossible to assert pair fully taken for the position that the Temperature Distribution prevented on fin locally rises
Plan.That is, local temperature rises the bottleneck for the heat problem for being finally whole device, in order to cool down the position, it is necessary to take following
Countermeasure.
（a）Improve the specification of ventilation fan, the absolute magnitude for the air that increase fin is sucked.
（b）Expand fin shape, improve the thermal diffusivity of heat.
（c）The material of fin is modified to the high material of thermal diffusivity.
（d）In order to improve the thermal cooling performance of turbulence effect, fin shape is made into complicated shape（Gas in fin
Stream portion adds projection）.
If take above-mentioned（a）~（d）These countermeasures, then cost increase be present, and asked as whole device maximization
Topic.
Patent document 1：Japanese Unexamined Patent Publication 2007-174851 publications（Fig. 6）
The content of the invention
Therefore, problem of the invention is, there is provided a kind of fin for the temperature that can reduce fin privileged site.
In order to solve above-mentioned problem, the fin of the first invention, the front of the unit of storage fin is provided with air-breathing
Mouthful, the elevated near sites of local temperature are provided with multiple air entries also on the side on above-mentioned fin.
In addition, the fin of the second invention, air entry is provided with the bottom surface of the unit of storage fin.
In addition, the fin of the 3rd invention, is provided with notch part on a heat sink, is formed and dissipated by the notch part to above-mentioned
The inflow part of fresh air is imported in backing.
In addition, the fin of the 4th invention, be provided with the bottom surface of the unit of storage fin for adjust inspiratory capacity and
The adjustable plate of suction location.
As a result, in identical fin, it can also adjust according to the allocation position of heater and want partly to drop
The position of low temperature, in addition, the wind speed in fin can also be controlled partly（Or air quantity）.
Additionally, it is not necessary to new air channel is set, as long as setting air-breathing on the periphery for the fin being configured in existing device
Mouthful, just can be from expected position（The front of heater）Obtain the cooled air in fin.
In addition, according to the air entry regulatory function for being arranged at bottom surface, with the change of element configuration, the shape of fin,
The shape of air entry can be changed to be consistent with it, the component compatibility of each product line, product capacity can be kept.
Brief description of the drawings
Fig. 1 is the integrally-built figure for representing existing variable speed drive conversion work platform.
Fig. 2 is mounted in representing the figure of the structure of the unit inside the conversion work platform shown in Fig. 1.
Fig. 3 is the figure for the outline for representing the air draught inside the unit shown in Fig. 2.
Fig. 4 is the figure of the structure for the fin for representing embodiments of the present invention 1.
Fig. 5 is the figure of the effect for the fin for illustrating embodiments of the present invention 1.
Fig. 6 A are the upward views of the unit of the fin of built-in embodiments of the present invention 1.
Fig. 6 B are to represent to be installed on the bottom surface of the unit shown in Fig. 6 A to adjust the present invention of inspiratory capacity and air entry position
Embodiment adjustable plate structure figure.
Fig. 7 is the figure of the installation situation for the adjustable plate for representing embodiments of the present invention.
Fig. 8 is the figure for representing to change the adjustable plate of embodiments of the present invention and the example of the pattern of caused air entry.
Fig. 9 is the figure of the structure for the fin for representing embodiments of the present invention 2.
Figure 10 is the figure of the effect for the fin for illustrating embodiments of the present invention 2.
Embodiment
The following detailed description of embodiments of the present invention.
（Embodiment 1）
Fig. 4 is the figure of the structure for the fin for representing embodiments of the present invention 1.In addition, Fig. 5 is the reality for illustrating the present invention
Apply the figure of the effect of the fin of mode 1.
In figures 4 and 5, the structure of the fin of embodiments of the present invention 1 is to be not only provided with fin face side
Air entry, also it is provided with multiple air entries, energy on any side or bottom surface from fin front to the centre at the fin back side
Enough from all air entries while air-breathing.
That is, in Fig. 4（a）、（b）And Fig. 5（a）、（b）In, on fin 4, it is not only provided with the air-breathing of fin face side
Mouth 8, multiple air entries 9 are also set on the arbitrary side of the centre in fin front to the fin back side, but also dissipated
Air entry 10 is set on backing front to the arbitrary bottom surface of the centre at the fin back side, in the upstream side of fin 4 and downstream
The fresh air sucked from air entry 9 and 10 is obtained between side.
Therefore, also can be from the front of fin 4 be arranged to the air-breathing on the arbitrary side or bottom surface of the centre at the back side
9 and 10 air-breathings of mouth, thus, the fresh air outside any part suction inside fin 4, because of the difference of the flow direction of air
It is different, i.e., from air entry 9 and 10 because of air of the wherein side from air entry 8 towards rear side and on the direction at a right angle with it
The collision of both air draught vectors of the air of suction, turbulization, it can not be dissipated by the part for carrying out self-configuring air entry
The influence of the heat of the upstream side of air-flow inside backing 4 and carry out air-breathing.
Like this, in the present embodiment, in the arbitrary side or bottom surface of the centre at front to the back side from fin 4
Upper setting air entry, thus, because of the vector turbulization of the air draught from outside suction, therefore, it can make as fin 4
With standard heatsinks, cost will not be increased, temperature can be greatly reduced compared with inside existing fin.It is in addition, additional
Air entry 9 and 10, air entry is set on arbitrary side or bottom surface of the front from fin 4 to the centre at the back side, from this
Position manufactures new air draught, therefore, it is not necessary to set air channel with regard to that can reduce temperature.
In addition, it is for the prior art of turbulization, it is necessary to take and the flow surface of air is formed as into concavo-convex side
Method and complicated shape is formed it into so that air draught becomes the countermeasures such as the method for random direction, therefore, in order to by the shape of fin 4
As special shape, cost increase.
Fig. 6 A are that, in the bottom surface of unit 3, interval configures wide air entry and used from the upward view of the unit 3 in terms of bottom surface
Hole and the hole of narrow air entry.In addition, Fig. 6 B are the holes for representing to change the air entry for the bottom surface for being configured at Fig. 6 A
Size adjustable plate 11 structure figure, be provided with adjustable plate 11：The hole of multiple regulations（2 generally square holes and 2
Individual rectangular hole）12nd, the slot-shaped sliding eye 13 that adjustable plate 11 moves in unit 3 is enable.
Fig. 7 is the figure for representing to be provided with the situation of the adjustable plate 11 shown in Fig. 6 B in the bottom surface of the unit 3 shown in Fig. 6 A.
In Fig. 7, it is close on unit 3 from bottom surface side by the adjustable plate 11 shown in Fig. 6 B, is fixed on sliding eye 13 with fixing screws 14
A certain position so that in the position, the air entry 10 for being arranged at bottom surface becomes desired size.If it is desired to change adjustable plate 11
Position changes the size for the air entry 10 for being arranged at bottom surface, loosens simultaneously mobile fixing screw 14, solid again in required position
It is fixed.So, it can move the block arrow direction shown in adjustable plate 11 to Fig. 4 right sides, so as to change the bottom for being arranged at unit 3
The size of the air entry 10 in face.The size for changing the air entry 10 for the bottom surface for being arranged at unit 3 represents to change from air entry
The amount of 10 extraneous airs sucked.
Fig. 8 is ideograph when representing to change the size of the air entry for the bottom surface for being arranged at unit 3.That is, in Fig. 8 pattern
In 1, the first row of fixing screws 14 is fixed in the upper end of sliding eye 13, identical with the position shown in Fig. 7.In the case,
The hole of narrow air entry opens 2/3 or so, in addition, for the hole of wide air entry, two be arranged on adjustable plate 13
Open the upside 1/2 or so in generally square hole.
In Fig. 8 pattern 2, the first row of fixing screws 14 is fixed in the position more lower slightly than the upper end of sliding eye 13,
In the case, the hole of narrow air entry completely encloses, and the hole of the air entry for wide cut, is arranged on adjustable plate 13
Two generally square holes become full opening of state.
In Fig. 8 pattern 3, the first row of fixing screws 14 is with the second row in the top and bottom of sliding eye 13 substantially
Impartial position is fixed, and in the case, the hole of narrow air entry completely encloses, in addition, for wide air entry
Hole, the downside 1/2 or so in two generally square holes being arranged on adjustable plate 13 are opened.
In Fig. 8 pattern 4, the first row of fixing screws 14 is fixed in the location roughly halfway up of sliding eye 13,
In this case, the hole of narrow air entry completely encloses, and the hole of the air entry of wide cut also completely encloses.That is, it is arranged at list
The air entry of the bottom surface of member 3 becomes the state that can not be played a role.
In Fig. 8 pattern 5, the first row of fixing screws 14 is consolidated in the substantially middle lower slightly position than sliding eye 13
It is fixed, in the case, for the hole of narrow air entry, the upside 1/ in two slightly positive square holes being arranged on adjustable plate 13
2 or so open, and the hole of wide air entry becomes to be conditioned the completely enclosed state of plate 13.
In Fig. 8 pattern 6, the second row of fixing screws 14 is fixed in the lower end of sliding eye 13, in the case, right
In the hole of narrow air entry, the downside 1/2 or so in two generally square holes being arranged on adjustable plate 11 is opened, for
The hole of wide air entry, correspondingly opened according to the size in two rectangular holes being arranged on adjustable plate 11.
Like this, restraint location of the position of adjustable plate 11 in fixing screws 14 is staggered along sliding eye 13, so as to
Enough change two generally square holes being arranged on adjustable plate 11 and two rectangular holes and be arranged at unit 3
The hole of narrow air entry on bottom surface and the size in the hole of wide air entry, thus it is possible to according to dissipating inside fin
Hot situation freely changes.That is, according to the position of the part of desired cooling and want the amount sucked, selected from above-mentioned various patterns
The location and shape for selecting the optimal air entry for being arranged at bottom surface are extremely important.For example, in mode 1, by the position of adjustable plate 11
Install and be scheduled on positive side, the shape size for being arranged at the air entry of bottom surface diminishes, and therefore, is appropriate for local cooling, separately
Outside, in mode 2, the shape increase of the air entry of bottom surface is arranged at, therefore, inspiratory capacity increases, cold on a large scale for carrying out
It is highly effective.
In addition, as not represented in fin figure, it can also use template, pin-type, hollow fin etc. well-known
Type.In the case of from bottom surface side air-breathing, the fin of tabular（For example, template, hollow fin）Make wind from fin it
Between flow into and carry out air-breathing.
（Embodiment 2）
Fig. 9 is the figure of the structure for the fin for representing embodiments of the present invention 2.In addition, Figure 10 is to illustrate the present invention
The figure of the effect of the fin of embodiment 2.
In figure 9 and in figure 10, the fin of embodiments of the present invention 2 and above-mentioned embodiments of the present invention 1 dissipate
Backing is same, not the only air entry of fin face side, also any to the centre behind fin before fin
Side or bottom surface on multiple air entries are newly set, can from all air entries simultaneously air-breathing.
That is, in Fig. 9（a）、（b）And Figure 10（a）、（b）In, any to the centre behind fin before fin
Side on multiple air entries 9 are set, moreover, fin 4 wind inflow part set breach, internally sucked from the position
Extraneous air.In addition, air entry 10 is set also on the arbitrary bottom surface before fin to the centre behind fin.From
Extraneous air is sucked inside by the extraneous air that air entry 10 sucks by being arranged at the notch part of above-mentioned fin 4.
So, it is same with the fin of the embodiment 1 of the invention described above, also can be from being arranged at from fin 4 just
The air-breathing of air entry 9 and 10 of the arbitrary side or bottom surface of the centre at face to the back side, thus, from any portion inside fin 4
Fresh air outside the suction of position, because of the difference in air draught direction, collides, as a result turbulization between air, can
Do not influenceed by the heat of the distinguished and admirable upstream side inside the fin 4 for the part for carrying out self-configuring air entry and carry out air-breathing.As a result,
Temperature can be greatly reduced compared with inside existing fin.In addition, additional air entry 9 and 10, in the front of fin 4 extremely
The arbitrary side or bottom surface of the centre at the back side set air entry, new air draught are manufactured from the position, therefore, it is not necessary to set
Air channel is with regard to that can reduce temperature.
In addition, as fin, it is same with the fin of the embodiment 1 of the invention described above, template, pin can be used
The well-known types such as type, hollow fin.As fin, pin-type fin（Fin is not tabular, but by multiple
The type that cylinder or corner post are formed）Above-mentioned breach need not be set, as long as in any of the centre from fin front to the back side
Side on multiple air entries 9 are set.
Claims (8)
- A kind of 1. fin, it is characterised in that：The front of the unit of storage fin is provided with the first air entry, local temperature also on the side on the fin Elevated near sites are provided with multiple second air entries, and the bottom surface of the unit is provided with the 3rd air entry, enter one Step be provided with the bottom surface of the unit for adjust the unit bottom surface set the 3rd air entry inspiratory capacity and The adjustable plate of air entry position, the air that is sucked from first air entry with from second air entry and the described 3rd The collision of air flow vector, turbulization occur between the air of air entry suction.
- 2. fin as claimed in claim 1, it is characterised in that：Notch part is provided with the fin, forms the inflow for importing fresh air into the fin by the notch part Portion.
- 3. fin as claimed in claim 1, it is characterised in that：The adjustable plate can move on the gap that the long side with the unit is abreast set and be arranged at the list to change The opening of the 3rd air entry of the bottom surface of member.
- 4. fin as claimed in claim 3, it is characterised in that：The adjustable plate is set to be moved on the gap to change the described 3rd of the bottom surface for being arranged at the unit the with a variety of The pattern of the opening of air entry.
- 5. fin as claimed in claim 4, it is characterised in that：The adjustable plate, have in the inner side in the gap of the profile according to the fin in a manner of groups of across interval The multiple holes formed, the hole shape are different.
- 6. the fin as described in claim 4 or 5, it is characterised in that：The adjustable plate is carried out temporarily fixed interim fixed component in the assigned position in the gap and fixed temporarily.
- 7. fin as claimed in claim 6, it is characterised in that：The interim fixed component is formed by being crimped on multiple screws of fixed position on the unit, one group of the screw two And including multigroup.
- A kind of 8. power inverter, it is characterised in that：Including the fin any one of claim 1 to 7 and conversion work platform,Fin storage any one of claim 1 to 7 is placed in the multiple of the conversion work platform in the cells On bracket, and ventilation fan is placed in the upper surface of the conversion work platform.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-075792 | 2013-04-01 | ||
| JP2013075792A JP6163835B2 (en) | 2013-04-01 | 2013-04-01 | Cooling fin and power conversion device including the cooling fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104105382A CN104105382A (en) | 2014-10-15 |
| CN104105382B true CN104105382B (en) | 2017-12-05 |
Family
ID=51673060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410073241.9A Active CN104105382B (en) | 2013-04-01 | 2014-02-28 | Fin and the power inverter including the fin |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6163835B2 (en) |
| CN (1) | CN104105382B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6520057B2 (en) * | 2014-11-11 | 2019-05-29 | 株式会社明電舎 | Board structure |
| JP6728667B2 (en) * | 2015-12-15 | 2020-07-22 | 富士電機株式会社 | Cooling device and power conversion device |
| KR101835954B1 (en) * | 2016-02-24 | 2018-04-19 | 엘에스산전 주식회사 | Motor drive unit |
| JP6678608B2 (en) * | 2016-07-26 | 2020-04-08 | 三菱電機株式会社 | Electronic equipment cooling device |
| CN108990392B (en) * | 2018-09-06 | 2023-08-18 | 郑州云海信息技术有限公司 | Many cold sources modularization data center |
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|---|---|---|---|---|
| CN2874393Y (en) * | 2006-01-19 | 2007-02-28 | 烟台日江电器制造有限公司 | Heat radiator capable of regulating output heat volume |
| CN101713577A (en) * | 2009-09-21 | 2010-05-26 | 浙江大学 | Wind-driven thermoacoustic vehicle air conditioning |
| CN102763496A (en) * | 2011-02-03 | 2012-10-31 | 松下电器产业株式会社 | Cooling structure for electronic device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533503U (en) * | 1978-08-23 | 1980-03-04 | ||
| JPH02136387U (en) * | 1989-04-17 | 1990-11-14 | ||
| JP2000125571A (en) * | 1998-10-12 | 2000-04-28 | Nissin Electric Co Ltd | Power-conversion |
| JP2001060788A (en) * | 1999-06-17 | 2001-03-06 | Furukawa Electric Co Ltd:The | Plane type improved heat mobile unit heat sink |
| JP3315969B2 (en) * | 2000-05-09 | 2002-08-19 | 株式会社ソニー・コンピュータエンタテインメント | Electronics |
| JP2007115844A (en) * | 2005-10-19 | 2007-05-10 | Yaskawa Electric Corp | Motor controller |
| JP5150569B2 (en) * | 2009-06-30 | 2013-02-20 | 株式会社日立製作所 | POWER CONVERSION DEVICE, POWER CONVERSION UNIT, AND METHOD FOR DESIGNING POWER CONVERSION UNIT |
-
2013
- 2013-04-01 JP JP2013075792A patent/JP6163835B2/en active Active
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- 2014-02-28 CN CN201410073241.9A patent/CN104105382B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874393Y (en) * | 2006-01-19 | 2007-02-28 | 烟台日江电器制造有限公司 | Heat radiator capable of regulating output heat volume |
| CN101713577A (en) * | 2009-09-21 | 2010-05-26 | 浙江大学 | Wind-driven thermoacoustic vehicle air conditioning |
| CN102763496A (en) * | 2011-02-03 | 2012-10-31 | 松下电器产业株式会社 | Cooling structure for electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104105382A (en) | 2014-10-15 |
| JP6163835B2 (en) | 2017-07-19 |
| JP2014204453A (en) | 2014-10-27 |
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