CN204425196U - A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter - Google Patents

A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter Download PDF

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Publication number
CN204425196U
CN204425196U CN201520190974.0U CN201520190974U CN204425196U CN 204425196 U CN204425196 U CN 204425196U CN 201520190974 U CN201520190974 U CN 201520190974U CN 204425196 U CN204425196 U CN 204425196U
Authority
CN
China
Prior art keywords
cabinet
air
power
cooling fan
wind deflector
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.)
Expired - Fee Related
Application number
CN201520190974.0U
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Chinese (zh)
Inventor
周辉
王彤
宋飞
于德政
陈杰
夏洁
曹鹏
石伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NANJING NANRUI SOLAR ENERGY TECHNOLOGY Co Ltd
Original Assignee
NANJING NANRUI SOLAR ENERGY TECHNOLOGY Co Ltd
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Priority to CN201520190974.0U priority Critical patent/CN204425196U/en
Application granted granted Critical
Publication of CN204425196U publication Critical patent/CN204425196U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model discloses a kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter, comprise cabinet, the top of cabinet is provided with some air outlets, is provided with rack dividing plate in cabinet, and cabinet inside is divided into upper cavity and lower chamber by rack dividing plate; Some power module assemblies and insulation wind deflector is provided with in upper cavity, power module assembly top communicates with air outlet, the bottom of power module assembly is provided with cooling fan, on cabinet, the position of corresponding cooling fan is provided with the first air inlet, on rack dividing plate, the lower position of corresponding cooling fan is provided with some air holes excessively, the rear side of power module assembly is provided with insulation wind deflector, and insulation wind deflector is provided with some air-guiding holes, and on cabinet, the position on corresponding insulation wind deflector top is provided with the second air inlet; Be provided with DC circuit breaker, direct current molten and inlet wire copper bar soon in lower chamber, DC circuit breaker, direct current are molten to be soon connected successively with inlet wire copper bar, and on cabinet, the position of corresponding inlet wire copper bar is provided with the 3rd air inlet.The utility model can to device heat radiation in cabinet.

Description

A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter
Technical field
The utility model relates to field of new energy generation, particularly relates to a kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter.
Background technology
As one of the nucleus equipment of solar energy power generating, are related to the operating efficiency of whole photovoltaic plant in the stability of photovoltaic DC-to-AC converter and useful life.Whether want heater members to carry out good heat radiating to photovoltaic DC-to-AC converter internal main, be the large key factor affecting the photovoltaic DC-to-AC converter life-span.Power cabinet inside includes multiple thermals source such as power component IGBT, dc-link capacitance, circuit breaker, fuse, and these thermals source interact, and makes power cabinet internal heat dissipating situation become complicated.
Prior art generally all takes cooling measure to power component IGBT, and common methods is fixed on the substrate of Aluminium Radiator by IGBT, and recycling cooling fan dispels the heat to heat radiator fin, takes heat out of rack.For other devices, the mode of free convection in cabinet is generally only adopted to dispel the heat.Owing to not carrying out forced convection heat radiation to all the other devices in power cabinet, cause these long term device to work at higher temperature, reduce the working life of device so to a great extent.
Utility model content
The utility model provides a kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter, is not increasing on the basis of cooling fan, dispels the heat to main heater members each in cabinet, extends device operational lifetime.
For solving above technical problem, the utility model provides a kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter, comprises cabinet, and the top of described cabinet is provided with some air outlets, be provided with rack dividing plate in described cabinet, described cabinet inside is divided into upper cavity and lower chamber by described rack dividing plate;
Some power module assemblies and insulation wind deflector is provided with in described upper cavity, described power module assembly top communicates with described air outlet, the bottom of described power module assembly is provided with cooling fan, on described cabinet, the position of corresponding described cooling fan is provided with the first air inlet, on described rack dividing plate, the lower position of corresponding described cooling fan is provided with some air holes excessively, the rear side of described power module assembly is provided with described insulation wind deflector, described insulation wind deflector is provided with some air-guiding holes, on described cabinet, the position on corresponding described insulation wind deflector top is provided with the second air inlet,
Be provided with DC circuit breaker, direct current molten and inlet wire copper bar soon in described lower chamber, described DC circuit breaker, described direct current are molten to be soon connected successively with described inlet wire copper bar, and on described cabinet, the position of corresponding described inlet wire copper bar is provided with the 3rd air inlet.
Further, described power module assembly also comprises module mounting plate, radiator, dc-link capacitance, stack bus bar, power component IGBT and driven unit thereof, described cooling fan, described radiator, described dc-link capacitance, described stack bus bar, described power component IGBT and driven unit thereof are all installed on described module mounting plate, described power component IGBT and driven unit thereof are fixed on described radiator, communicate with described cooling fan below described radiator, top communicates with described air outlet, described dc-link capacitance is positioned at described radiator side, by described stack bus bar, itself and described power component IGBT are electrically connected.
Further, on described rack dividing plate, the lower position of corresponding described cooling fan is specifically provided with three and crosses air holes.
Further, described insulation wind deflector is specifically provided with three air-guiding holes, the position of described air-guiding hole is just to the dc-link capacitance of described power module assembly.
Further, the position of described second air inlet is a little more than described dc-link capacitance.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model utilizes original blower fan for IGBT heat radiation, is reached for the object of the main heater members heat radiation of whole rack, does not additionally increase blower fan, improve device lifetime and system reliability;
2, by means of only arrange suitable wind deflector and reasonably perforate can achieve the goal, simple for structure, simple and easy to do and easy to maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the right view of the inside of the power cabinet heat abstractor of the photovoltaic DC-to-AC converter that the utility model embodiment provides;
Fig. 2 is the stereogram that the utility model embodiment provides the inside of the power cabinet heat abstractor of photovoltaic DC-to-AC converter;
Fig. 3 is the rearview that the utility model embodiment provides the inside of the power cabinet heat abstractor of photovoltaic DC-to-AC converter.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter, as shown in Figure 1, comprise cabinet 1, the top of cabinet 1 is provided with some air outlets 3, be provided with rack dividing plate 4 in cabinet 1, cabinet 1 inside is divided into upper cavity 11 and lower chamber 12 by rack dividing plate 4.
As depicted in figs. 1 and 2, be provided with some power module assemblies 2 and insulation wind deflector 8 in upper cavity 11, power module assembly 2 top communicates with air outlet 3, and the bottom of power module assembly 2 is provided with cooling fan 22.Concrete, power module assembly 2 also comprises module mounting plate 21, radiator 23, dc-link capacitance 24, stack bus bar 25, power component IGBT and driven unit 26 thereof, cooling fan 22, radiator 23, dc-link capacitance 24, stack bus bar 25, power component IGBT and driven unit 26 thereof are all installed on module mounting plate 21, power component IGBT and driven unit 26 thereof are fixed on radiator 23, communicate with cooling fan 22 below radiator 23, top communicates with air outlet 3, dc-link capacitance 24 is positioned at radiator 23 side, by stack bus bar 25, itself and power component IGBT are electrically connected.
On cabinet 1, the position of corresponding cooling fan 22 is provided with the first air inlet 13, with reference to shown in Fig. 1 and 2, on rack dividing plate 4, the lower position of corresponding cooling fan 22 is provided with some air holes excessively 41 (be specifically provided with three and cross air holes), can circulate at the cooling-air crossing upper and lower two cavitys in air holes 41 place.With reference to Fig. 1 and Fig. 3, the rear side of power module assembly 2 is provided with insulation wind deflector 8, insulation wind deflector 8 is provided with some air-guiding holes 81 (being specifically provided with three air-guiding holes), the position of air-guiding hole 81 is just to the dc-link capacitance 24 of power module assembly 2, on cabinet 1, the position on corresponding insulation wind deflector 8 top is provided with the position of the second air inlet 15, second air inlet 15 a little more than dc-link capacitance 24.
Be provided with DC circuit breaker 5, direct current in lower chamber 12 and melt 6 and inlet wire copper bar 7 soon, DC circuit breaker 5, direct current melt 6 soon and are connected successively with inlet wire copper bar 7, and on cabinet 1, the position of corresponding inlet wire copper bar 7 is provided with the 3rd air inlet 14.
It is the mode of both sides air intake, upwards air-out when cooling fan 22 works.The cooling air at the first air inlet 13 place directly enters cooling fan 22.After the cooling air of the 3rd air inlet 14 enters rack, through inlet wire copper bar 7, direct current soon molten 6 with DC circuit breaker 5, then enter cooling fan 22 through the mistake air holes 41 on rack dividing plate 4.After the cooling air at the second air inlet 15 place enters rack, under blower negative pressure effect, through the air-guiding hole 81 on insulation wind deflector 8, the space between dc-link capacitance 24, then enter cooling fan 22.Under the effect of blower fan, cooling air is forced upwards to drive, and through radiator 23, discharges cabinet from top outlet inlet 3.By this structure, utilizing original is the blower fan of IGBT heat radiation separately, reaches the object into main heater members heat radiation each in power cabinet, and does not additionally increase cooling fan.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model utilizes original blower fan for IGBT heat radiation, is reached for the object of the main heater members heat radiation of whole rack, does not additionally increase blower fan, improve device lifetime and system reliability;
2, by means of only arrange suitable wind deflector and reasonably perforate can achieve the goal, simple for structure, simple and easy to do and easy to maintenance.
Above disclosedly be only a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims (5)

1. a power cabinet heat abstractor for photovoltaic DC-to-AC converter, comprises cabinet, it is characterized in that, the top of described cabinet is provided with some air outlets, is provided with rack dividing plate in described cabinet, and described cabinet inside is divided into upper cavity and lower chamber by described rack dividing plate;
Some power module assemblies and insulation wind deflector is provided with in described upper cavity, described power module assembly top communicates with described air outlet, the bottom of described power module assembly is provided with cooling fan, on described cabinet, the position of corresponding described cooling fan is provided with the first air inlet, on described rack dividing plate, the lower position of corresponding described cooling fan is provided with some air holes excessively, the rear side of described power module assembly is provided with described insulation wind deflector, described insulation wind deflector is provided with some air-guiding holes, on described cabinet, the position on corresponding described insulation wind deflector top is provided with the second air inlet,
Be provided with DC circuit breaker, direct current molten and inlet wire copper bar soon in described lower chamber, described DC circuit breaker, described direct current are molten to be soon connected successively with described inlet wire copper bar, and on described cabinet, the position of corresponding described inlet wire copper bar is provided with the 3rd air inlet.
2. the power cabinet heat abstractor of photovoltaic DC-to-AC converter as claimed in claim 1, it is characterized in that, described power module assembly also comprises module mounting plate, radiator, dc-link capacitance, stack bus bar, power component IGBT and driven unit thereof, described cooling fan, described radiator, described dc-link capacitance, described stack bus bar, described power component IGBT and driven unit thereof are all installed on described module mounting plate, described power component IGBT and driven unit thereof are fixed on described radiator, communicate with described cooling fan below described radiator, top communicates with described air outlet, described dc-link capacitance is positioned at described radiator side, by described stack bus bar, itself and described power component IGBT are electrically connected.
3. the power cabinet heat abstractor of photovoltaic DC-to-AC converter as claimed in claim 1, is characterized in that, on described rack dividing plate, the lower position of corresponding described cooling fan is specifically provided with three and crosses air holes.
4. the power cabinet heat abstractor of photovoltaic DC-to-AC converter as claimed in claim 2, it is characterized in that, described insulation wind deflector is specifically provided with three air-guiding holes, the position of described air-guiding hole is just to the dc-link capacitance of described power module assembly.
5. the power cabinet heat abstractor of photovoltaic DC-to-AC converter as claimed in claim 2, it is characterized in that, the position of described second air inlet is a little more than described dc-link capacitance.
CN201520190974.0U 2015-03-31 2015-03-31 A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter Expired - Fee Related CN204425196U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201520190974.0U CN204425196U (en) 2015-03-31 2015-03-31 A kind of power cabinet heat abstractor of photovoltaic DC-to-AC converter

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108447832A (en) * 2018-03-19 2018-08-24 许继电气股份有限公司 Semiconductor heat-exchanger rig, semiconductor module and electrical equipment
CN110138238A (en) * 2017-02-17 2019-08-16 许继电气股份有限公司 A kind of power module
CN110380622A (en) * 2019-07-31 2019-10-25 国电南瑞科技股份有限公司 A kind of high power density energy accumulation current converter easy to maintain
CN111934523A (en) * 2020-08-20 2020-11-13 广东电网有限责任公司电力科学研究院 Power module based on modular carborundum device
CN112533434A (en) * 2020-12-16 2021-03-19 厦门锐传科技有限公司 Inversion module

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110138238A (en) * 2017-02-17 2019-08-16 许继电气股份有限公司 A kind of power module
CN110138238B (en) * 2017-02-17 2021-04-16 许继电气股份有限公司 Power module
CN108447832A (en) * 2018-03-19 2018-08-24 许继电气股份有限公司 Semiconductor heat-exchanger rig, semiconductor module and electrical equipment
CN110380622A (en) * 2019-07-31 2019-10-25 国电南瑞科技股份有限公司 A kind of high power density energy accumulation current converter easy to maintain
CN111934523A (en) * 2020-08-20 2020-11-13 广东电网有限责任公司电力科学研究院 Power module based on modular carborundum device
CN112533434A (en) * 2020-12-16 2021-03-19 厦门锐传科技有限公司 Inversion module

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150624

Termination date: 20200331