CN101145727A - Heat radiation device for middle and high voltage high-power case frequency converter - Google Patents
Heat radiation device for middle and high voltage high-power case frequency converter Download PDFInfo
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- CN101145727A CN101145727A CNA2007100464256A CN200710046425A CN101145727A CN 101145727 A CN101145727 A CN 101145727A CN A2007100464256 A CNA2007100464256 A CN A2007100464256A CN 200710046425 A CN200710046425 A CN 200710046425A CN 101145727 A CN101145727 A CN 101145727A
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Abstract
The invention relates to a heat radiator for middle and high-voltage high-power cabinet frequency converter. The heat radiator comprises a cabinet back plate (2), an air chamber (3) at the back part of the frequency converter, a power unit (5), a plurality of windows for ventilation of the power unit, a front air inlet (6), an air chamber (7) at the front part of the cabinet, an air partitioning plate (8), at least an axial flow blower (9) at the inner side of the cabinet back plate (2), a back air outlet screen (10) on the cabinet back plate (2), and an axial flow blower bracket (11). Compared with the prior art, the invention has the advantages of improved heat radiation efficiency due to a horizontal air duct, good heat radiation effect, low noise, improved reliability due to the shared air chambers, low cost, a blower array composed of a plurality of blower sets, uniform air pressure and airflow, improved service life due to the low-speed blower, reduced noise and mechanical vibration, and wide application range.
Description
Technical field
The present invention relates to the high-power cabinet type frequency converter of a kind of middle and high pressure, relate in particular to the heat abstractor of this frequency converter.
Background technology
If the high-power cabinet type frequency changer complexity of middle and high pressure, the inner a large amount of semiconductor power devices that use, the heat that these devices produce when work be untimely discharge, and operating efficiency, life-span, the reliability of device all had a significant impact.Because there is more heater members middle and high pressure big-power transducer inside, if one or several device uses a separate fan cooling separately, certainly will to use a large amount of low capacity fans, increase system complexity, the reliability and maintainability of system is impacted.So what present most of products used is the method for integrated air exhaust heat radiation.
It is frequency converter front portion or bottom air intake that integrated air exhaust heat radiation was at present used more, the vertical air channel design (the 338th～340 page of the ISBN7-111-19218-4/TM921.51 of Chinese China Machine Press " high-power variable-frequency control technique ") of top air-out, owing in the wind path right angle link is arranged, the air channel is very long in addition, cause air loss bigger, and the air quantity of each device also distribute inequality.Generally speaking, mesohigh case frequency converter top blind flange area is less relatively, so in order to produce enough blast and air quantity at limited ducting outlet place, can only use high-speed centrifugal fan.The high-speed centrifugal fan air quantity is big, and blast is big, but the thing followed is the rotating speed height, the loss height, and noise is big, and vibration is big, life-span that common relatively blower fan is short and higher price.Among Fig. 1: the difference of the heat abstractor of the utility model and the high-power cabinet type frequency converter of traditional middle and high pressure is: plate 2, frequency converter rear gas chamber 3, a plurality of windows 4 that are used for the power cell ventilation and heat, power cell 5, preceding air inlet 6, the anterior air chamber 7 of cabinet, air insulated plate 8 behind the centrifugal blower 1 at cabinet top, the cabinet.
Summary of the invention
The technical issues that need to address of the present invention have provided the heat abstractor of the high-power cabinet type frequency converter of a kind of middle and high pressure, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: plate, frequency converter rear gas chamber, a plurality of windows that are used for the power cell ventilation and heat, power cell, preceding air inlet, the anterior air chamber of cabinet, air insulated plate behind the cabinet; Also comprise: back air outlet aperture plate, axial flow blower carriage on plate behind at least one axial flow blower of plate inboard behind the described cabinet, the cabinet.
Compared with prior art, the invention has the beneficial effects as follows: radiating efficiency height, good heat dissipation effect, noise is low, the reliability height, cost is low, uses a plurality of blower fans to form the blower fan array, blast, air-flow are even, radiating efficiency is improved in horizontal air channel, shares air chamber and improves system reliability, and the low speed blower fan improves service life, reduce noise and mechanical oscillation, applicable to various application occasions.
Description of drawings
Fig. 1 is the construction for heat radiating device schematic diagram of the high-power cabinet type frequency converter of traditional middle and high pressure;
Fig. 2 is a structural representation of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As seen from Figure 2: the present invention includes: plate 2, frequency converter rear gas chamber 3, a plurality of windows 4 that are used for the power cell ventilation and heat, power cell 5, preceding air inlet 6, the anterior air chamber 7 of cabinet, air insulated plate 8 behind the cabinet; Also comprise: back air outlet aperture plate 10, axial flow blower carriage 11 on plate 2 behind at least one axial flow blowers 9 of plate 2 inboards behind the described cabinet, the cabinet;
Described at least one axial flow blower 9 is six, and two row from top to bottom are arranged in order;
The ventilating opening of air inlet 6, air insulated plate 8, axial flow blower 9 arrays are positioned at same straight line with back air outlet aperture plate 10 before described;
The air-flow direction of described back air outlet aperture plate 10 in the horizontal direction up and down in 45 °.
The present invention is placed in the air inlet and the air outlet of high voltage converter on the same straight line, by using division board the frequency converter cabinet is divided into former and later two air chambers, power cell or power device is positioned over the ventilating opening place of division board.The axial flow blower that uses a plurality of rotating shaft levels at the rear portion air chamber is with the rear portion air chamber formation negative pressure of bleeding, cold air is entered by the anterior air inlet of cabinet, window through on the division board passes power device or its radiator, enters cabinet rear portion air chamber and discharges outside the cabinet by blower fan.
Because the present invention adopts above technical scheme, has the following advantages:
One, owing to used horizontal duct, do not have the right angle link in vertical air channel, and greatly shortened Air channel length has increased the sectional area of air outlet, thereby has reduced atmospheric pressure lost, makes the air inlet filter screen Antidusting improves.
Two, owing to used the blower fan array that covers whole power devices, having solved vertical air channel can not The air pressure of avoiding, the uneven problem of air-flow have improved radiating efficiency.
Three, since the air outlet sectional area increase and use a plurality of axial flow blowers, in the feelings of same ventilation Condition leeward prompt drop is low, has reduced the requirement to rotation speed of fan and blast, uses the low blast blower fan of low speed, Greatly reduce system noise.
Four, owing to used a plurality of blower fans, system redundancy improves greatly, and indivedual fan troubles are being arranged Situation under system still can continue the operation.
Five, owing to use the slow-speed shaft flow fan, compare with the product of the identical working life of high-speed centrifugal fan, the unit price reduces greatly, and blower fan group price also decreases.
Claims (4)
1. the heat abstractor of the high-power cabinet type frequency converter of middle and high pressure comprises: plate behind the cabinet (2), frequency converter rear gas chamber (3), a plurality of windows (4) that are used for the power cell ventilation and heat, power cell (5), preceding air inlet (6), the anterior air chamber (7) of cabinet, air insulated plate (8); It is characterized in that also comprising: back air outlet aperture plate (10), axial flow blower carriage (11) on plate (2) behind inboard at least one axial flow blower (9) of plate (2) behind the described cabinet, the cabinet.
2. the heat abstractor of the high-power cabinet type frequency converter of middle and high pressure according to claim 1 is characterized in that: at least one axial flow blower (9) is six, and two row from top to bottom are arranged in order.
3. the heat abstractor of the high-power cabinet type frequency converter of middle and high pressure according to claim 1 and 2 is characterized in that: the ventilating opening of air inlet (6), air insulated plate (8), axial flow blower (9) array are positioned at same straight line with back air outlet aperture plate (10) before described.
4. the heat abstractor of the high-power cabinet type frequency converter of middle and high pressure according to claim 3 is characterized in that: the air-flow direction of described back air outlet aperture plate (10) in the horizontal direction up and down in 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100464256A CN101145727A (en) | 2007-09-26 | 2007-09-26 | Heat radiation device for middle and high voltage high-power case frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100464256A CN101145727A (en) | 2007-09-26 | 2007-09-26 | Heat radiation device for middle and high voltage high-power case frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101145727A true CN101145727A (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100464256A Pending CN101145727A (en) | 2007-09-26 | 2007-09-26 | Heat radiation device for middle and high voltage high-power case frequency converter |
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| CN (1) | CN101145727A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699733B (en) * | 2009-11-05 | 2012-01-25 | 中国北车股份有限公司大连电力牵引研发中心 | Ventilating device for current transformer |
| CN102355148A (en) * | 2011-10-10 | 2012-02-15 | 保定天威集团有限公司 | Direct exhaust type ventilating module for power unit of indoor high-power photovoltaic inverter |
| CN102364108A (en) * | 2011-05-12 | 2012-02-29 | 上海英格索兰压缩机有限公司 | Frequency conversion type screw air compressor electric cabinet |
| US8395897B2 (en) * | 2009-06-17 | 2013-03-12 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Electrical power component attached to chassis of an electrical power apparatus |
| CN105162310A (en) * | 2015-10-27 | 2015-12-16 | 东方日立(成都)电控设备有限公司 | Structural device for cascaded type cophase power supply converter |
| CN105490556A (en) * | 2014-09-29 | 2016-04-13 | 株洲变流技术国家工程研究中心有限公司 | Converter apparatus |
| CN106452019A (en) * | 2016-12-01 | 2017-02-22 | 南通沃特光电科技有限公司 | Cooling method of high-voltage inverter power unit |
| CN109378962A (en) * | 2018-09-21 | 2019-02-22 | 巢湖市金辉自控设备有限公司 | A kind of multistage frequency conversion device mounting device with radiator |
| CN112038915A (en) * | 2020-09-03 | 2020-12-04 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
| CN114221523A (en) * | 2021-12-20 | 2022-03-22 | 远景能源有限公司 | Frequency converter |
-
2007
- 2007-09-26 CN CNA2007100464256A patent/CN101145727A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8395897B2 (en) * | 2009-06-17 | 2013-03-12 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Electrical power component attached to chassis of an electrical power apparatus |
| CN101699733B (en) * | 2009-11-05 | 2012-01-25 | 中国北车股份有限公司大连电力牵引研发中心 | Ventilating device for current transformer |
| CN102364108A (en) * | 2011-05-12 | 2012-02-29 | 上海英格索兰压缩机有限公司 | Frequency conversion type screw air compressor electric cabinet |
| CN102355148A (en) * | 2011-10-10 | 2012-02-15 | 保定天威集团有限公司 | Direct exhaust type ventilating module for power unit of indoor high-power photovoltaic inverter |
| CN105490556A (en) * | 2014-09-29 | 2016-04-13 | 株洲变流技术国家工程研究中心有限公司 | Converter apparatus |
| CN105162310A (en) * | 2015-10-27 | 2015-12-16 | 东方日立(成都)电控设备有限公司 | Structural device for cascaded type cophase power supply converter |
| CN106452019A (en) * | 2016-12-01 | 2017-02-22 | 南通沃特光电科技有限公司 | Cooling method of high-voltage inverter power unit |
| CN109378962A (en) * | 2018-09-21 | 2019-02-22 | 巢湖市金辉自控设备有限公司 | A kind of multistage frequency conversion device mounting device with radiator |
| CN112038915A (en) * | 2020-09-03 | 2020-12-04 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
| CN112038915B (en) * | 2020-09-03 | 2022-06-28 | 中国人民解放军海军工程大学 | Opposite-mounted vertical air-cooling heat dissipation system and control method |
| CN114221523A (en) * | 2021-12-20 | 2022-03-22 | 远景能源有限公司 | Frequency converter |
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