CN104105382A - Cooling fin and electric power conversion device comprising same - Google Patents
Cooling fin and electric power conversion device comprising same Download PDFInfo
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- CN104105382A CN104105382A CN201410073241.9A CN201410073241A CN104105382A CN 104105382 A CN104105382 A CN 104105382A CN 201410073241 A CN201410073241 A CN 201410073241A CN 104105382 A CN104105382 A CN 104105382A
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- fin
- air
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- adjustable plate
- air entry
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Abstract
The present invention provides a cooling fin which is not only provided with an air suction port at a right side of the cooling fin, but also additionally provided with a plurality of air suction ports on any side surface in the middle from the right side of the cooling fin to a back side of the cooling fin, and additionally provided with air suction ports on any bottom surface in the middle from the right side of the cooling fin to the back side of the cooling fin, so as to obtain the air newly sucked from the air suction ports between an upstream side and a downstream side of the cooling fin. Air can be sucked from the plurality of air suction ports provided at any side surface or bottom surface in the middle from the right side of the cooling fin to the back side of the cooling fin, therefore, external fresh air is sucked from any position inside the cooling fin, turbulent flow may occur due to collision of two air flow vectors formed by the air from the air suction port at one side towards the back side and the air sucked from the other plurality of air suction ports in the direction perpendicular to the direction of the above-mentioned air.
Description
Technical field
The present invention relates to fin and the power inverter that possesses this fin.
Background technology
Generally speaking, power inverter is made up of following several parts: input transformer; Be connected to form multiple units inverter unit of inverter circuit with the secondary end of this transformer; With distribution board control part being separately accommodated in respectively in closed disk independently.For example, in power inverter described in following patent documentation 1, in transformer dish 1, be accommodated with input transformer 4, in transducer dish 2, receive multiple (illustrated example is 6) unit inverter unit 5 that levels is arranged, in control/output panel 3, be accommodated with control part 6, output cable 7.
In addition, transformer dish 1 and transducer dish 2 are provided with cooling fan 8,9 at the top of dish, for transducer dish 2, by by importing to extraneous air (cooling-air) in dish at the air entry 2a-1 with filter of the positive door 2a opening of dish to each inverter unit 5 wind-guidings, this discharge air is divided to the discharge duct (not shown) that the wind-tunnel 10 that forms is connected to cooling fan 9, with this cooling fan 9 by the rear portion side in dish and discharge.
In addition, in prior art, for air cooling semiconductor module/element, fin is set in inverter unit, in the situation that carrying out cooling this fin by forced air-cooling, adopt from any air amount, air is passed through in fin, discharge the structure of warm air from the face of its opposite side.
Fig. 1 is the integrally-built figure that represents commercially available existing variable speed drive conversion work platform.That is, Fig. 1 (a) is the integrally-built front elevation that represents conversion work platform, and Fig. 1 (b) is from presentation graphs 1(a) shown in the side cross-sectional view seen of the integrally-built A-A portion of conversion work platform.
As Fig. 1 (a) with (b), in conversion work platform 2, be conventionally provided with multiple brackets (not shown), on this bracket, carry the unit 3 shown in Fig. 2.Put ventilation fan 1 at the upper surface of conversion work platform 2, and in the inside of conversion work platform 2, multiple unit 3 are at random disposed on bracket.
As shown in Figure 2, there are fin 4, wind-tunnel 5, semiconductor module/element 6 and (cylinder type) capacitor 7 in each unit 3 internal configurations.Ventilation fan 1 is started working, and at the inner generation of forced air draught of conversion work platform 2 (representing air draught with arrow in figure), by the fin 4 shown in Fig. 1 (b), produces the air draught through ventilation fan 1 through wind-tunnel 5.This is that the heating of the power loss that electric power when conversion producing in semiconductor module/element 6 occurred in order to obtain compulsory air draught is carried out forced air-cooling, the structure that heat is escaped to outside.
Fig. 3 is the figure that represents the overview of the air draught of inside, unit, and Fig. 3 (a) is the plane graph that represents the inside of unit 3, and Fig. 3 (b) is from presentation graphs 3(a) shown in the side cross-sectional view seen of the B-B portion of structure of inside of unit.
As Fig. 3 (a) with (b), represent to have passed through the extraneous air of the air entry 8 set in the face side of fin 4 that is arranged at 3 inside, unit with arrow, fin 4 and wind-tunnel 5 by 3 inside, unit are discharged from previous air draught, as shown in Figure 3 (b), downwind side (exhaust) temperature compared with weather side (air-breathing) raises.
In the case, ventilation fan 1 is started working, and thus, in 3 inside, unit, sucks extraneous air from air entry 8, and it is by the inner wind-tunnel 5 that flows into of fin 4, from wind-tunnel 5 to ventilation fan 1 exhaust.
Semiconductor module/element 6 disposes multiple at fin 4 upper faces, the logical heat transfer of heat producing from semiconductor module/element 6 passes to fin 4 inside, and the heat transmitting is cooled by forced air-cooling.
If adopt the type of cooling of the forced air-cooling of this fin 4, as shown in Figure 3 (b), the heat producing from configured multiple semiconductor module/elements 6, the downstream (exhaust side) of the air draught of more past fin 4 inside, more easily be subject to the impact of the heat of upstream side (suction side), even if be disposed on identical fin 4, also there is the such problem in position that local temperature raises that produces.In addition, because of main circuit difference, the deviation of the power loss amount that the electric power of generation semiconductor module/element 6 occurs while conversion, still can produce local high temperature position.The deviation of the power loss amount occurring when the configuration of semiconductor module/element 6, electric power conversion, because being restricted with the relation of being connected of external interface, product specification, need be determined allocation position under this restriction condition.
The caused temperature deviation problem of semiconductor module/element 6 is that local temperature raises, in order to address this problem, must take following these countermeasures: (A) improve the specification (to increase overall air quantity to improve wind speed) of the ventilation fan 1 of the upper surface that is arranged at conversion work platform 2, (B) the enlarged shape size (increasing the contact area with air) in order to reduce the resistance to heat of fin 4.
Take these countermeasures, really effective to the high position of local temperature, but then, other positions that can not raise in local temperature, become superfluous equipment, and the Efficiency Decreasing of conversion work platform entirety, causes the increase of cost and the maximization of whole device.
If the forced air-cooling mode of existing fin, the air in fin is the air draught (laminar flow) of the certain wind speed on certain orientation.Cause is restricted with the configuration that is related to semiconductor module/element (heater) of the interface of external component, can not assert and take fully the countermeasure for preventing the local position of rising of Temperature Distribution on fin., local temperature rise is finally the bottleneck of the heat problem of whole device, for cooling this position, must take following countermeasure.
(a) specification of raising ventilation fan, the absolute magnitude of the air that increase fin sucks.
(b) expand fin shape, improve hot thermal diffusivity.
(c) material of fin is modified to the material that thermal diffusivity is high.
(d), in order to improve the hot cooling of turbulence effect, fin shape is made to complicated shape (projection is appended by the air-flow portion in fin).
If taked above-mentioned (a)～(d) these countermeasures, exist cost to increase, and whole device such problem that maximizes.
Patent documentation 1: TOHKEMY 2007-174851 communique (Fig. 6)
Summary of the invention
Therefore, problem of the present invention is, a kind of fin of the temperature that can reduce fin privileged site is provided.
In order to solve above-mentioned problem, the fin of the first invention, is provided with air entry in the front of the unit of receiving fin, near the position that also on the side on above-mentioned fin, local temperature raises, is provided with multiple air entries.
In addition, the fin of the second invention, is provided with air entry in the bottom surface of the unit of receiving fin.
In addition, the fin of the 3rd invention is provided with notch part on fin, forms by this notch part to the inflow portion that imports new wind in above-mentioned fin.
In addition, the fin of the 4th invention, is provided with the adjustable plate for regulating inspiratory capacity and suction location in the bottom surface of the unit of receiving fin.
Result is, even in identical fin, also can, according to the allocation position of heater, regulate the position of wanting to reduce partly temperature, in addition, can also control partly the wind speed (or air quantity) in fin.
In addition, new air channel needn't be set, as long as air entry is set at the periphery that is disposed at the fin in existing device, just can obtain cooled air in fin from the position (front of heater) of expection.
In addition, according to the air entry regulatory function that is arranged at bottom surface, along with the change of the shape of arrangements of components, fin, the shape of air entry can be changed to conform to it, the parts compatibility of each product line, product capacity can be kept.
Brief description of the drawings
Fig. 1 is the integrally-built figure that represents existing variable speed drive conversion work platform.
Fig. 2 is the figure that is equipped on the structure of the unit of the conversion work platform inside shown in presentation graphs 1.
Fig. 3 is the figure of the summary of the air draught of the inside, unit shown in presentation graphs 2.
Fig. 4 is the figure that represents the structure of the fin of embodiments of the present invention 1.
Fig. 5 is the figure of the effect of the fin of explanation embodiments of the present invention 1.
Fig. 6 A is the upward view of the unit of the fin of built-in embodiments of the present invention 1.
Fig. 6 B is the figure that the bottom surface that represents to be installed on the unit shown in Fig. 6 A regulates the structure of the adjustable plate of the embodiments of the present invention of inspiratory capacity and air entry position.
Fig. 7 is the figure that represents the installation situation of the adjustable plate of embodiments of the present invention.
Fig. 8 represents to change the adjustable plate of embodiments of the present invention and the figure of the example of the pattern of the air entry that produces.
Fig. 9 is the figure that represents the structure of the fin of embodiments of the present invention 2.
Figure 10 is the figure of the effect of the fin of explanation embodiments of the present invention 2.
Embodiment
Describe embodiments of the present invention below in detail.
(execution mode 1)
Fig. 4 is the figure that represents the structure of the fin of embodiments of the present invention 1.In addition, Fig. 5 is the figure of the effect of the fin of explanation embodiments of the present invention 1.
In Fig. 4 and Fig. 5, the structure of the fin of embodiments of the present invention 1 is, not only be provided with the air entry of fin face side, be also provided with multiple air entries in any side or the bottom surface of the centre from fin front to the fin back side, can be simultaneously air-breathing from all air entries.
; in Fig. 4 (a) and (b) and Fig. 5 (a) and (b); on fin 4; not only be provided with the air entry 8 of fin face side; also on the side arbitrarily of the centre at fin front to the fin back side, multiple air entries 9 are set; but also on the bottom surface arbitrarily of the centre at fin front to the fin back side, air entry 10 is set, between the upstream side of fin 4 and downstream, obtain the fresh air sucking from air entry 9 and 10.
Therefore, also can be air-breathing from being arranged at air entry 9 and 10 side arbitrarily or the bottom surface of centre at front to the back side of fin 4, thus, suck outside fresh air from any part of fin 4 inside, because of the difference of the flow direction of air, because of the wherein collision of a side these the two kinds of air draught vectors of air that suck from air entry 9 and 10 towards the air of rear side with on direction rectangular with it from air entry 8, turbulization, can do not come the upstream side of the air-flow of fin 4 inside of the part of self-configuring air entry heat impact and carry out air-breathing.
Like this, in the present embodiment, in side arbitrarily or bottom surface from the centre at front to the back side of fin 4, air entry is set, thus, because of the vector turbulization of the air draught from outside suction, therefore, can use standard fin as fin 4, can not make cost increase, can significantly reduce temperature compared with existing fin inside.In addition, append air entry 9 and 10, in side arbitrarily or bottom surface from the centre at front to the back side of fin 4, air entry is set, manufacture new air draught from this position, therefore, air channel needn't be set and just can reduce temperature.
In addition, being used for the prior art of turbulization is, must take the flow surface of air to be formed as to concavo-convex method and to make it form complicated shape so that air draught becomes the countermeasures such as the method for random direction, therefore, for fin 4 is formed as to special shape, cost increases.
Fig. 6 A is the upward view of the unit 3 seen from bottom surface, in the bottom surface of unit 3, and the hole that the hole that the wide air entry of configuration spaced apart is used and narrow air entry are used.In addition, Fig. 6 B is the figure that represents to change the structure of the big or small adjustable plate 11 in the hole that the air entry of the bottom surface that is disposed at Fig. 6 A uses, and on adjustable plate 11, is provided with: the hole of multiple adjusting use (2 roughly square hole and 2 rectangular holes) 12, make the adjustable plate 11 can be at the slot-shaped sliding eye 13 of unit 3 interior movements.
Fig. 7 is the figure that the bottom surface that is illustrated in the unit 3 shown in Fig. 6 A is provided with the situation of the adjustable plate 11 shown in Fig. 6 B.In Fig. 7, from bottom surface side, the adjustable plate 11 shown in Fig. 6 B is close to unit 3, sliding eye 13 is fixed on to a certain position with hold-down screw 14, make in this position, the air entry 10 that is arranged at bottom surface becomes the size of expectation.If the position of wanting to change adjustable plate 11 changes the size of the air entry 10 that is arranged at bottom surface, loosening and mobile fixing screw 14, again fixing in desired location.Like this, can make adjustable plate 11 move to the thick direction of arrow shown in Fig. 4 right side, thereby can change the size of the air entry 10 of the bottom surface that is arranged at unit 3.The size that changes the air entry 10 of the bottom surface that is arranged at unit 3 represents to change the amount of the extraneous air sucking from air entry 10.
Fig. 8 is the ideograph while representing to change air entry big or small of the bottom surface that is arranged at unit 3., in the pattern 1 of Fig. 8, the first row of hold-down screw 14 is fixed in the upper end of sliding eye 13, identical with the position shown in Fig. 7.In the case, 2/3 left and right is opened in the hole that narrow air entry is used, in addition, the hole of using for wide air entry, be arranged on adjustable plate 13 two roughly upside 1/2 left and right in foursquare hole open.
In the pattern 2 of Fig. 8, the first row of hold-down screw 14 is fixed in the position more lower slightly than the upper end of sliding eye 13, in the case, the hole that narrow air entry is used is sealed completely, and the hole of using for the air entry of wide cut, be arranged on adjustable plate 13 two roughly foursquare hole become the state of opening completely.
In the mode 3 of Fig. 8, the first row of hold-down screw 14 and the second row are fixed in the position of approximate equality in the top and bottom of sliding eye 13, in the case, the hole that narrow air entry is used is sealed completely, in addition, the hole of using for wide air entry, be arranged on adjustable plate 13 two roughly downside 1/2 left and right in foursquare hole open.
In the pattern 4 of Fig. 8, the first row of hold-down screw 14 is fixed in the roughly position of centre of sliding eye 13, and in the case, the hole that narrow air entry is used is sealed completely, and also sealing completely of the hole that the air entry of wide cut is used.The air entry that, is arranged at the bottom surface of unit 3 becomes the state that can not play a role.
In the pattern 5 of Fig. 8, the first row of hold-down screw 14 is fixed in the roughly middle lower slightly position than sliding eye 13, in the case, the hole of using for narrow air entry, open upside 1/2 left and right that is arranged at two slightly foursquare holes on adjustable plate 13, and the hole that wide air entry is used becomes the complete totally enclosed state of plate 13 that is conditioned.
In the pattern 6 of Fig. 8, the second row of hold-down screw 14 is fixed in the lower end of sliding eye 13, in the case, the hole of using for narrow air entry, be arranged on adjustable plate 11 two roughly downside 1/2 left and right in foursquare hole open, the hole of using for wide air entry, correspondingly opens according to the size that is arranged at two rectangular holes on adjustable plate 11.
Like this, staggered along sliding eye 13 at the restraint location of hold-down screw 14 in the position of adjustable plate 11, thereby can change be arranged on adjustable plate 11 two roughly foursquare hole and two rectangular holes and be arranged at hole that the narrow air entry on the bottom surface of unit 3 uses and the size in the hole that wide air entry is used, so, can freely change according to the heat dissipating state of fin inside.,, according to wanting the position of cooling part and wanting the amount sucking, from above-mentioned various patterns, select position and the shape of the best air entry that is arranged at bottom surface extremely important.For example, in pattern 1, by the set positions of adjustable plate 11, in a positive side, the shape size that is arranged at the air entry of bottom surface diminishes, therefore, be applicable to carrying out the cooling of part, in addition, in pattern 2, the shape that is arranged at the air entry of bottom surface increases, therefore, inspiratory capacity increases, cooling very effective on a large scale for carrying out.
In addition,, as not representing in fin figure, also can adopt the well-known types such as template, pin type, hollow fin.Air-breathing from bottom surface side in the situation that, tabular fin (for example, template, hollow fin) makes wind carry out air-breathing from inflow between fin.
(execution mode 2)
Fig. 9 is the figure that represents the structure of the fin of embodiments of the present invention 2.In addition, Figure 10 is the figure of the effect of the fin of explanation embodiments of the present invention 2.
In Fig. 9 and Figure 10, the fin of embodiments of the present invention 2 is same with the fin of above-mentioned embodiments of the present invention 1, not only there is the air entry of fin face side, also before fin, to the side arbitrarily of the centre after fin or bottom surface, multiple air entries are newly being set, can be simultaneously air-breathing from all air entries.
; in Fig. 9 (a) and (b) and Figure 10 (a) and (b), before fin, to the side arbitrarily of the centre after fin, multiple air entries 9 are being set, and; inflow portion at the wind of fin 4 arranges breach, sucks extraneous air from this position to inside.In addition, also before fin, to the bottom surface arbitrarily of the centre after fin, air entry 10 is being set.The extraneous air sucking from air entry 10 absorbs extraneous air by the notch part that is arranged at above-mentioned fin 4.
Like this, same with the fin of the execution mode 1 of the invention described above, also can be air-breathing from being arranged at from the side arbitrarily of centre or the air entry of bottom surface 9 and 10 at front to the back side of fin 4, thus, suck outside fresh air from any part of fin 4 inside, because of the difference of air draught direction, between air, bump, result turbulization, can not come the distinguished and admirable upstream side of fin 4 inside of the part of self-configuring air entry heat impact and carry out air-breathing.As a result, can significantly reduce temperature compared with existing fin inside.In addition, append air entry 9 and 10, in side arbitrarily or the bottom surface of the centre at front to the back side of fin 4, air entry is set, manufacture new air draught from this position, therefore, air channel needn't be set and just can reduce temperature.
In addition, as fin, same with the fin of the execution mode 1 of the invention described above, can adopt the well-known types such as template, pin type, hollow fin.As fin, pin type fin (fin is not tabular, but the type being made up of multiple cylinders or corner post) needn't arrange above-mentioned breach, as long as multiple air entries 9 are set in the side arbitrarily from the centre at fin front to the back side.
Claims (10)
1. a fin, is characterized in that:
Front in the unit of receiving fin is provided with air entry, near the position that also on the side on described fin, local temperature raises, is provided with multiple air entries.
2. fin as claimed in claim 1, is characterized in that:
Also be provided with air entry in the bottom surface of the unit of receiving described fin.
3. fin as claimed in claim 1 or 2, is characterized in that:
On described fin, be provided with notch part, form by this notch part to the inflow portion that imports new wind in described fin.
4. fin as claimed any one in claims 1 to 3, is characterized in that:
Bottom surface in the unit of receiving described fin is provided with the adjustable plate for regulating inspiratory capacity and air entry position.
5. fin as claimed in claim 4, is characterized in that:
Described adjustable plate can be on the gap arranging abreast with the long limit of described unit the opening of the mobile multiple air entries that change the bottom surface that is arranged at described fin.
6. fin as claimed in claim 5, is characterized in that:
There is the multiple pattern that makes described adjustable plate opening of the mobile multiple air entries that change the bottom surface that is arranged at described fin on described gap.
7. the fin as described in claim 5 or 6, is characterized in that:
Described adjustable plate, has the multiple holes that form across interval in mode in groups in the inner side in the described gap of the profile according to described fin, this hole shape is different.
8. the fin as described in any one in claim 4 to 7, is characterized in that:
It is temporary fixed that described adjustable plate is carried out temporary fixed temporary fixed parts by the assigned position in described gap.
9. fin as claimed in claim 8, is characterized in that:
Described temporary fixed parts Shang Lai multiple screws of fixed position and are formed by being crimped on described unit, two one group, this screw and comprise many groups.
10. a power inverter, is characterized in that:
Comprise the fin described in any one and conversion work platform in claim 1 to 9,
Fin in claim 1 to 9 described in any one is accommodated in unit and loads on multiple brackets of described conversion work platform, and ventilation fan is loaded in the upper surface of described 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 true CN104105382A (en) | 2014-10-15 |
| CN104105382B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124848A (en) * | 2016-02-24 | 2017-09-01 | Ls 产电株式会社 | Electric-motor drive unit |
| CN111246707A (en) * | 2018-11-29 | 2020-06-05 | 发那科株式会社 | Heat sink device |
Families Citing this family (4)
| 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 |
| 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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| US20010043462A1 (en) * | 2000-05-09 | 2001-11-22 | Kouichi Yamazaki | Electronic device |
| 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 |
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| 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 |
| 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 |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010043462A1 (en) * | 2000-05-09 | 2001-11-22 | Kouichi Yamazaki | Electronic device |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124848A (en) * | 2016-02-24 | 2017-09-01 | Ls 产电株式会社 | Electric-motor drive unit |
| CN111246707A (en) * | 2018-11-29 | 2020-06-05 | 发那科株式会社 | Heat sink device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014204453A (en) | 2014-10-27 |
| CN104105382B (en) | 2017-12-05 |
| JP6163835B2 (en) | 2017-07-19 |
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