CN204792426U - A cooling device for power electronic equipment - Google Patents
A cooling device for power electronic equipment Download PDFInfo
- Publication number
- CN204792426U CN204792426U CN201520127932.2U CN201520127932U CN204792426U CN 204792426 U CN204792426 U CN 204792426U CN 201520127932 U CN201520127932 U CN 201520127932U CN 204792426 U CN204792426 U CN 204792426U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- passage
- air
- air guide
- sidewall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001816 cooling Methods 0.000 title claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims description 67
- 238000009527 percussion Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000002596 correlated effect Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides the utility model discloses a refrigerated cooling device of power electronic equipment condenser (1), power electronic equipment is equipped with one or more fan (2). The device includes: be located vertical passageway (3) within the power electronic equipment be provided with condenser (1) in the vertical passageway, wherein the bottom of vertical passageway (3) has air induction element (4), side passageway (5), side passageway setting is containing the passageway of condenser (3) next door, and wherein incline passageway (5) and passageway (3) that contain the condenser have common lateral wall (6), the lateral wall has air guide opening (7), and wherein air induction element (4) are set to: the empty air flow guide that will produce by one or more air fan (2) to in the side passageway (5) to air guide opening (7) is set to: in transmitting to passageway (3) that contain the condenser with the air current from side passageway (5) to the cooling condenser.
Description
Technical field
The utility model relates to the cooling of capacitor and particularly relates to the cooling of the capacitor of power electronics devices.
Background technology
In power electronics devices, capacitor is used for storage power in known manner and is used for bucking voltage fluctuation.The example comprising the equipment of this capacitor is frequency converter, in described frequency converter, capacitor is used as accumulator and is used for the direct voltage in ME for maintenance intermediate circuit.Reduced large with fast current peak by capacitor, described current peak can make capacitive load and improve its temperature.
The capacitor of this DC voltage intermediate circuit be the main electrical current circuit of frequency converter a part and near the miscellaneous part being typically positioned at main electrical current circuit in the structure of frequency converter.Miscellaneous part in main electrical current circuit is such as rectifier and inverter, there is DC voltage intermediate circuit in-between.Not only rectifier but also inverter have switch block, and when electric current accesses, described switch block is large degree ground heating also.
In order to simplify the structure of frequency converter, preferably all parts of cooling that needs being arranged in the same structure, to this object being: all parts needing cooling cooling this structure by one or more cooling fan.
In some structure types, the capacitor of cylindricality can flatly be located, and capacitor is stacked at least in part up and down.In addition, the location of level means: the pivot center of the capacitor of cylindricality is in level.In addition, the capacitor of horizontal location can be located in the channel, and the wall of described passage is such as formed with other structures by the packaging part of equipment.Cooling-air is blown into from down, and a part for wherein produced air stream flows through passage and other parts of a part of cooling device of air stream.
Problem when this solution is, the air lumen in capacitor vias shows and reduces and be in the highest capacitor in the channel and be cooled efficiently unlike the capacitor be in more on the lower.When capacitor is closer to each other, air stream improves the back-pressure of passage.Due to the back-pressure produced, air can not flow in passage in an orderly manner, but moves on the contrary in other parts of structure with less pressure.Thus, the temperature between capacitor is uneven.Higher temperature causes the shorter useful life of parts in known manner.The electrical characteristics of capacitor are as the function of temperature, and then the temperature remained unchanged in electricity runs is worth expecting.
Utility model content
Therefore, the utility model, based on following object, develops a kind of cooling device, makes it possible to solve the problem mentioned hereinbefore.The purpose of this utility model realizes by following cooling device, the feature of described cooling device is to have: be positioned at the vertical passage within power electronics devices, in described vertical passage, be provided with capacitor, the bottom of wherein vertical passage has air guide element; Wing passage, described wing passage is arranged on the passage side comprising capacitor, and wherein wing passage has common sidewall with the passage comprising capacitor, and described sidewall has air guide opening; Wherein air guide element is arranged to: be directed in wing passage by the air stream produced by one or more air fan, and air guide opening is arranged to: be delivered to from wing passage by air stream and comprise the passage of capacitor, so that cooling electric container.Of the present utility model is preferred embodiment theme hereafter.
The utility model based on, propose: air stream flow to capacitor vias from the side of capacitor vias.The side of capacitor vias is provided with air duct, air stream is being directed in described air duct.Air is directed in capacitor vias from described air duct via the hole plate air duct and capacitor vias are separated from each other (or analog).
According to device of the present utility model, there is following advantage: the cooling of capacitor becomes more effective, because capacitor independently remains essentially at identical temperature with its position.In addition, the utility model can be implemented very simply, and need not change the structure that may complete of remaining device.This represents: fan still can mean cooling for entirety and need not carry out other structural changes in the structure of entirety.
Accompanying drawing explanation
Present combination preferred embodiment carrys out detailed description the utility model with reference to appended accompanying drawing, wherein:
Fig. 1 illustrates the graphic extension figure according to cooling device of the present utility model;
Fig. 2 illustrates the stereogram of the cooling device according to an execution mode of the present utility model; And Fig. 3 illustrates the stereogram of the sidewall with air guide opening.
Embodiment
Fig. 1 illustrates the basic structure of frequency converter.The frequency converter of Fig. 1 is the module of encapsulation, and described module has the power component of frequency converter, the auxiliary current circuit of described power component, the capacitor 1 of intermediate circuit.Frequency converter also has other electric parts or mechanical part in a way known, and its exemplary position represents by means of square frame 10,11 in FIG.
Fig. 1 illustrates two fans 2, and described fan is arranged to: when frequency converter is in run location, transmit air from bottom to top.The air transmitted by fan flows through frequency converter and a part for air flows through the cooling ribs etc. be within frequency converter.
According in device of the present utility model, capacitor 1 is positioned on the marginal portion of frequency converter within Vertical Channel 3.Capacitor is fixed on the sidewall of passage, makes the pivot center of the capacitor of cylindricality be in level.Therefore, in FIG, capacitor is fixed on sidewall 6.
The lower end of vertical passage, i.e. bottom are closed by air guide element 4 substantially.Described air guide element 4 is such as plate or similar plate, the first edge 8 of described plate compared with the second edge 9 closer to fan.Second edge 9 of air guide element 4 is adjacent to wing passage 5.Passage 3 side that wing passage 5 is comprising capacitor is configured to, and makes wing passage 5 have common sidewall 6 with the passage comprising capacitor.The wall of wing passage 5 is made up of the wall of frequency converter or the wall of the structure that is positioned at frequency converter side, makes wing passage be closed substantially.
Sidewall is configured with air guide opening 7, comprises the passage 3 of capacitor the air stream produced by fan is directed to from wing passage 5.Air guide opening is formed for cooling electric container on the position expected on sidewall.
According in the example of Fig. 1, four capacitors 1 can be seen.Capacitor can fixed along on the multiple different position of depth direction on sidewall 6, and namely all capacitors are not necessarily arranged along vertical curve.Fig. 2 illustrates according to the stereogram of the structure of an execution mode for explanation idea of the present utility model.Fig. 2 illustrates fan 2, air guide element 4, capacitor 1 in the channel and air guide opening 7.For the reason of clearness, not all of Fig. 2 mark at parts Reference numeral above-mentioned.
Fig. 3 illustrates the example of sidewall 6, and described sidewall is for fixed capacitor and for being incorporated into cooling-air in capacitor vias.According to the sidewall of Fig. 3 being configured with circular opening 21 for fixed capacitor.Capacitor over said opening by independent fixed mechanism in known manner and fix by means of secure fit part.On the sidewall of Fig. 3 can on nine different positions fixed capacitor.The opening also illustrated capacitor position in the structure of the circle of sidewall.
Fig. 3 also illustrates the example how air guide opening 7 forms and locate.Air flow opening is used for air stream to be directed to from wing passage to comprise the passage of capacitor.In order to introduce better, air guide opening is preferably configured to, and the upper part of opening is configured to, stretches out towards wing passage.Therefore, the direction of air stream towards capacitor guides by protuberance.In the example of fig. 1, can see in side view as the air guide opening of the protuberance of projection shape.
There is preferred more air guide opening 7 compared with in low portion in the upper part of sidewall 6.In the example of fig. 3, in the upper part of sidewall, opening is formed close to each other, makes all capacitors that will cool be provided with uniform stream and homogeneous temperature ground distributes between the capacitors.In addition, can it is considered that, air guide opening distributes equably to each capacitor.
According to of the present utility model one preferred embodiment, air guide element 4 is partly closed and is comprised the passage of capacitor, and a part for the air stream wherein produced by fan flow to passage from the low portion of passage.In order to described object is configured with one or more air openings in air guide element or at air guide element place.This air openings is therefore, it is possible to be between air guide element and the wall forming passage and/or as the opening existence formed in air guide element.But the air openings in the bottom of passage can not realize noticeable air stream, but the overwhelming majority of air stream flow in wing passage and the stream flowing through air openings mainly cools the capacitor be in more on the lower.
Air guide opening is preferably formed by percussion tool, and described percussion tool is processed the edge of the opening of breach shape in the above described manner.The opening made by percussion tool has following advantage: during formation opening, structure protuberance, and described protuberance is received towards the side joint of wing passage and guides air.Air to be directed in the passage comprising capacitor and to produce towards the air stream in the direction of capacitor in the channel by air guide opening 7, described air stream cooling electric container equably.The upper part of capacitor vias is unlimited and air is discharged from passage via the upper part of opening wide.
Sidewall 6 is preferably made up of plate.Wall also can have the parts be made up of insulating material, can need described parts when fixed capacitor, so that capacitor is electrically separated each other.It is clear that the air guide opening of sidewall is consisted of sidewall, wherein form in the possible insulating material of aperture also on the opening manufactured in plate.
It will be apparent to one skilled in the art that basic idea of the present utility model can realize in a number of different manners when acquisition of technology progress.Therefore, the utility model and execution mode thereof are also unrestricted in above-mentioned example, but can change in the scope of claim.
Claims (8)
1. the cooling device of the capacitor for cooling power electronic equipment (1), described power electronics devices is provided with one or more fan (2), to produce the low portion air stream upwards from described power electronics devices, it is characterized in that, described device has:
Be positioned at the vertical passage (3) within described power electronics devices, be provided with described capacitor (1) in described vertical passage, the bottom of wherein said vertical passage (3) has air guide element (4);
Wing passage (5), described wing passage is arranged on passage (3) side comprising described capacitor, and wherein said wing passage (5) and the passage (3) comprising described capacitor have common sidewall (6), and described sidewall has air guide opening (7), wherein
Described air guide element (4) is arranged to: be directed to by the air stream produced by one or more air fan (2) in described wing passage (5), and described air guide opening (7) is arranged to: described air stream is delivered to the passage (3) comprising described capacitor, to cool described capacitor from described wing passage (5).
2. device according to claim 1,
It is characterized in that,
Described air guide element (4) is arranged to: partly close described vertical passage (3), wherein in described air guide element (4) or at described air guide element (4) place, be configured with one or more air openings, to be incorporated into described vertical passage from the lower end of described vertical passage by described air stream.
3. device according to claim 1 and 2,
It is characterized in that,
Each air guide opening (7) have formed by the top edge of the described opening of being correlated with, the protuberance extend in described wing passage, be directed to the passage (3) comprising described capacitor from described wing passage for by described air stream.
4. device according to claim 1 and 2,
It is characterized in that,
Be positioned with more air guide opening (7) compared with in the low portion of described sidewall in the upper part of described sidewall.
5. device according to claim 1 and 2,
It is characterized in that,
Described air guide opening (7) is formed by percussion tool on described sidewall.
6. device according to claim 1 and 2,
It is characterized in that,
Described power electronics devices is frequency converter and described capacitor is the capacitor of DC voltage intermediate circuit.
7. device according to claim 1 and 2,
It is characterized in that,
Described sidewall has plate.
8. device according to claim 7,
It is characterized in that,
Described sidewall also has insulating material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FIU20144051 | 2014-03-07 | ||
| FIU20144051U FI10484U1 (en) | 2014-03-07 | 2014-03-07 | Cooling arrangement for a power electronics device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792426U true CN204792426U (en) | 2015-11-18 |
Family
ID=51031575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520127932.2U Active CN204792426U (en) | 2014-03-07 | 2015-03-05 | A cooling device for power electronic equipment |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN204792426U (en) |
| DE (1) | DE202015101052U1 (en) |
| FI (1) | FI10484U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386754A (en) * | 2017-11-24 | 2020-07-07 | 西门子股份公司 | Low-voltage switchgear with defined cooling arrangement |
-
2014
- 2014-03-07 FI FIU20144051U patent/FI10484U1/en active IP Right Grant
-
2015
- 2015-03-05 DE DE201520101052 patent/DE202015101052U1/en active Active
- 2015-03-05 CN CN201520127932.2U patent/CN204792426U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386754A (en) * | 2017-11-24 | 2020-07-07 | 西门子股份公司 | Low-voltage switchgear with defined cooling arrangement |
| US11304330B2 (en) | 2017-11-24 | 2022-04-12 | Siemens Aktiengesellschaft | Low-voltage switching device having a defined cooling arrangement |
| CN111386754B (en) * | 2017-11-24 | 2022-04-15 | 西门子股份公司 | Low-voltage switchgear with defined cooling arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202015101052U1 (en) | 2015-03-23 |
| FI10484U1 (en) | 2014-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181122 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Helsinki Patentee before: ABB T & D Technology Ltd. |