CN103269168B - A kind of casing for installing photovoltaic combining inverter - Google Patents

A kind of casing for installing photovoltaic combining inverter Download PDF

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Publication number
CN103269168B
CN103269168B CN201310197264.6A CN201310197264A CN103269168B CN 103269168 B CN103269168 B CN 103269168B CN 201310197264 A CN201310197264 A CN 201310197264A CN 103269168 B CN103269168 B CN 103269168B
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CN
China
Prior art keywords
casing
storehouse
air inlet
cabinet
plate body
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
CN201310197264.6A
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Chinese (zh)
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CN103269168A (en
Inventor
余心举
陈恒留
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SHENZHEN JINGFUYUAN TECHNOLOGY Co Ltd
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SHENZHEN JINGFUYUAN TECHNOLOGY Co Ltd
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Priority to CN201310197264.6A priority Critical patent/CN103269168B/en
Publication of CN103269168A publication Critical patent/CN103269168A/en
Application granted granted Critical
Publication of CN103269168B publication Critical patent/CN103269168B/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

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  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention discloses a kind of casing for installing photovoltaic combining inverter, wherein, casing is divided into Qian Cang and Hou Cang by an interlayer; In front storehouse, cabinet top board is provided with the fixing plate (4) being parallel to upper plate body (31) vertically downward, and its both sides are connected by screw is fixing with the panel of casing both sides, and the panel of fixing plate (4) and interlayer (3) and casing both sides forms the first heat dissipation wind channel; Interlayer (3) is positioned at the bottom of fixing plate (4) and is provided with the first fan group (10), and top is provided with louvre (11) on the top board of cabinet; The front door (5) of cabinet is provided with the air inlet leading to Qian Cang (1); Rear storehouse (2) is provided with the second fan group (20) for convulsion on the top board of cabinet, is respectively equipped with, at chassis backplane and bottom surrounding sidewall, the air inlet (21 leading to Hou Cang (2); 22). Compared with prior art, the present invention improves radiating efficiency, extends the service life of fan, machine, reduces risk and improves the performance of machine.

Description

A kind of casing for installing photovoltaic combining inverter
Technical field
The present invention relates to photovoltaic combining inverter field, particularly relate to a kind of casing for installing photovoltaic combining inverter.
Background technology
Case for photovoltaic grid connected inverter is generally fitted with reactor, transformator, IGBT power tube etc., in existing case for photovoltaic grid connected inverter, great majority adopt single duct system heat radiation, both reactor, transformator, IGBT power tube were placed in a chamber, utilized cooling fan to pump the mode such as wind, water cooled pipeline water circulation and dispelled the heat. In single duct system, have a disadvantage in that one, use cooling fan to carry out pumping wind heat radiation, the heat that reactor, transformator and IGBT power tube send can transmit mutually, the temperature making IGBT power tube place is difficult to reduce, affect its life-span and efficiency, cause the volume of dropping, furthermore, heat owing to producing is relatively big, and temperature raises, and can fan life be substantially reduced, the service life of general high-power photovoltaic inverter was at about 25 years, if it is intended in an environment of high temperature it is necessary to the exigent fan of serviceability or powerful fan, add cost; Two, using the heat radiation of water cooled pipeline water-cycling mode, system complex, maintenance cost is high, has a big risk; Three, just in case IGBT power tube aircraft bombing, its fragment can cause reactor, transformer secondary to explode; Four, reactor produces sine wave and the rectangular wave of IGBT power tube generation interfere, and influence each other, the performance of machine can be made to reduce; Five, owing to air channel is single, it is impossible to dispel the heat to the pcb plate of control chamber, the power module of power supply of interior of equipment cabinet, bus capacitor, switch, bus bar copper row, copper bar etc., cause that machine efficiency reduces, even trip;Six, cabinet easily enters dirt, maintenance clean is inconvenient, (PCC) power and circuit board it is far longer than due to the ability of reactor and transformator anti-dust, if reactor, transformator do dust prevention system, IGBT constant power module place dust will be many, if do dust prevention system according to IGBT power tube place, the windage of reactor and transformator just strengthens.
Summary of the invention
It is an object of the invention to the defect existed for above-mentioned prior art, it is provided that a kind of casing for installing photovoltaic combining inverter.
The technical solution used in the present invention is, designs a kind of casing for installing photovoltaic combining inverter, and wherein, casing is divided into Qian Cang and Hou Cang by an interlayer; Interlayer includes being perpendicular to the upper plate body that cabinet top board is arranged, and is perpendicular to the lower body that chassis backplane is arranged, and upper plate body is connected by the middle plate body of horizontal positioned with lower body; In front storehouse, cabinet top board is provided with the fixing plate being parallel to upper plate body vertically downward, and its both sides are connected by screw is fixing with the panel of casing both sides, and fixing plate forms the first heat dissipation wind channel with interlayer; Being provided with the first fan group between interlayer and fixing plate, the top of the first heat dissipation wind channel is provided with louvre on the top board of cabinet; The front door of cabinet is provided with the air inlet leading to front storehouse; Rear storehouse is provided with the second fan group for convulsion on enclosure top, is respectively equipped with the air inlet in storehouse after leading at chassis backplane and bottom surrounding sidewall, is consequently formed the second heat dissipation wind channel.
In one embodiment, middle plate body two ends are connected with upper plate body, lower body respectively through screw. Middle plate body is a bent plate, including the tilting section being connected with upper plate body and the horizontal segment being connected with lower body.
In another embodiment, the bottom in front storehouse is provided with baffle plate, which is provided with the air inlet leading to front storehouse; Top adjacent with bottom in front storehouse is respectively equipped with the upper left door cover plate and upper right door cover plate split, the downside of upper left door cover plate and the upside of upper right door cover plate and is provided with the air inlet leading to front storehouse. The upper part in front storehouse is positioned at the inner side of upper left door cover plate and is additionally provided with one for installing the inner plating of pcb board, is provided with the air inlet leading to front storehouse on the upside of it. The left side of inner plating and the right side of upper right door cover plate are connected with casing by hinge, upper left door cover plate pass on left hinge with inner plating be connected.
Air inlet on described front door is provided with ventilation filter assembly.
Bottom described cabinet, the air inlet of surrounding is provided with fly net.
The Rear Door of described cabinet is provided with the air inlet leading to rear storehouse.
Compared with prior art, the present invention adopts double; two air duct radiation, and reactor, transformator and IGBT power tube are in independent air channel, dispel the heat respectively, improve radiating efficiency, extend the service life of machine, also the life-span of fan can be made to be greatly improved simultaneously, reduce the cost of fan; Reducing the risk of subsequent explosion, the electromagnetism produced when shielding work, to avoid influencing each other, improves the performance of machine.
Accompanying drawing explanation
Fig. 1 is the schematic diagram after the present invention removes side panel and left front door-plate;
Fig. 2 be cabinet of the present invention when surrounding panel is not installed after the schematic diagram in storehouse;
Fig. 3 is cabinet schematic diagram when being provided with cover plate, upper left door cover plate and upper right door cover plate;
Fig. 4 is cabinet front storehouse schematic diagram when being only provided with inner plating and electronic devices and components.
Detailed description of the invention
Below in conjunction with drawings and Examples, invention is described in detail.
As shown in Figure 1, the casing for installing photovoltaic combining inverter that the present invention proposes, this casing is provided with an interlayer 3, including one and cabinet top board upper plate body 31 connected vertically, one with chassis backplane lower body 33 connected vertically, the middle plate body 32 that upper plate body 31 and lower body 33 passes through horizontal positioned is connected;Interlayer about 3 two ends are fixing with the panel of cabinet both sides respectively to be connected, and interlayer 3 and front door 5 form front storehouse 1, and interlayer 3 and Rear Door form rear storehouse 2; The upper parallel upper plate body 31 in interlayer 3 in front storehouse 1 is provided with one for installing the fixing plate 4 of IGBT power tube, and its both sides are connected by screw is fixing with the panel of casing both sides, and the panel of this fixing plate 4 and interlayer 3 and casing both sides forms the first heat dissipation wind channel; The bottom of the first heat dissipation wind channel is provided with the first fan group 10 between interlayer 3 and described fixing plate 4, its top is provided with louvre 11 on the top board of cabinet, this the first fan group 10 constitutes the air inlet of the first heat dissipation wind channel, and louvre 11 constitutes the air outlet of the first heat dissipation wind channel; The front door 5 of cabinet is provided with the air inlet leading to front storehouse 1.
Figure it is seen that be provided with the second fan group 20 for convulsion on the top board of cabinet in rear storehouse 2, the second fan group 20 is arranged on the side in top board storehouse 2 backwards from bottom to top, in order to dismounting maintenance. The air inlet 21 in storehouse 2 after chassis backplane is provided with and leads to, air inlet 21 is larger-size square opening, can install fly net at air inlet 21 place of chassis backplane. Bottom cabinet surrounding sidewall be respectively equipped with and lead to after the air inlet 22 in storehouse 2, the through hole being shaped as strip of air inlet 22, array is arranged on bottom cabinet on surrounding sidewall. Interlayer 2, the both sides panel of cabinet and rear board surround the louvre that the second heat dissipation wind channel, chassis backplane and bottom surrounding sidewall arrange and constitute the air inlet of this second heat dissipation wind channel, and the second fan group 20 that top board is installed constitutes air outlet.
In one embodiment, from Fig. 1 and Fig. 2 it can be seen that middle plate body 32 two ends are connected (can certainly pass through welding manner to be connected by several pieces of plate bodys) respectively through screw with described upper plate body 31, lower body 33. Middle plate body 32 includes and the fixing tilting section being connected of upper plate body 31 and the horizontal segment that be connected fixing with lower body 33. Cabinet is isolated into independent front storehouse 1 and rear storehouse 2 by the interlayer 3 that upper plate body 31, middle plate body 32 and lower body 33 are combined into, tilting section on middle plate body 32 is arranged, be conducive to the wind-guiding (in certainly, plate body 32 can not also adopt bending plate, but adopts the panel being obliquely installed) in rear storehouse 2. Upper plate body 31 is provided with fan power supply module 40 in the side in rear storehouse 2, upper plate body 31 is arranged below the removable fixation means for fixing the first fan group 10 in fan power supply module 40, the present embodiment adopts the device of drawer type, in rear storehouse by this device pull out, put into the first fan group 10 and fix, then this device is pushed together with the first fan group 10 underface being positioned at fixing plate 4 in front storehouse 1. Fan power supply module 40 electrically connects with first fan group the 10, second fan group 20 respectively.
In another embodiment, as can be seen from Figure 3, front door 5 is the panel split that two fans are connected with cabinet by hinge, in front door 5, the bottom in front storehouse 1 is fixed with a dismountable baffle plate 6 by screw, baffle plate 6 is provided with the air inlet leading to front storehouse, the through hole being shaped as strip of this air inlet; Being positioned at the components and parts position of the switch installed bottom, front storehouse 1 on baffle plate 6 and be provided with through hole, the size of this through hole matches with components and parts switch panel. In front storehouse 1, the top adjacent with bottom is respectively equipped with the upper left door cover plate 7 and upper right door cover plate 8 that can split, the panel of upper left door cover plate 7 is provided with by lower position the air inlet leading to front storehouse, the panel of upper right door cover plate 8 is provided with by apical position the air inlet leading to front storehouse.Baffle plate 6, upper left door cover plate 7 and upper right door cover plate 8 cover the whole front storehouse 1 opening towards front door 5.
From figs. 3 and 4 it can be seen that the inner side that the upper part in front storehouse 1 is positioned at upper left door cover plate 7 is additionally provided with one for installing the inner plating 9 of pcb board, inner plating 9 panel is provided with the air inlet leading to front storehouse by apical position. The left side of inner plating 9 is provided with a boss, and boss surface is connected with casing by hinge, upper left door cover plate 7 pass on left the position of close boss on the left of the inner plating 9 being hingedly coupled to, leave one end distance between inner plating 9 and upper left door cover plate 7. The left side of inner plating 9 and the right side of upper right door cover plate 8 are connected with casing respectively through hinge so that it is all can hinge through around this.
In the present embodiment, the air inlet on front door 5 is provided with ventilation filter assembly, and bottom cabinet, the air inlet of surrounding is provided with fly net, and the Rear Door of cabinet is provided with the air inlet leading to rear storehouse. The upper plate body 31 of interlayer 3, middle plate body 32, lower body 33 adopt panel beating to make.
Below in conjunction with accompanying drawing, the radiating mode of this cabinet is elaborated:
First being provided with the electronic devices and components such as direct current branch switch, direct current main switch, alternating-current switch, copper bar, binding post, miniature circuit breaker, communication lightning-protection device, DC lightning prevention device in the bottom in the front storehouse 1 of cabinet, upper space is provided with wire capacitance, wire capacitance copper bar and IGBT power tube; After cabinet in storehouse 2, the electronic devices and components such as reactor, ac capacitor, catalyst, copper bar are installed.
In front storehouse 1, after the first fan group 10 is opened, the air in front storehouse is carried out convulsion by the first fan group 10, and outside air enters from the air inlet front door 5, most air can enter in front storehouse 1 lower space of cabinet through baffle plate 6, to the cooling electronic component that bottom, front storehouse 1 is installed. Extremely least a portion of air can be entered top, front storehouse 1 by left and right upper door cover plate 7,8, and the air inlet of upper right door cover plate 8 is in upside, and air can dispel the heat directly to the bus capacitor top that top, front storehouse 1 is installed after entering; Due in the present embodiment, the inner side of upper left door cover plate 7 is also equipped with inner plating 9, air is after the air inlet on the downside of upper left door cover plate 7 enters, flow through inner plating 9 surface, dispel the heat to the pcb board installed on it, entered top, front storehouse 1 by the air inlet on the upside of inner plating 9 again, dispel the heat to the bus capacitor top installed.
In front storehouse 1, the panel of the upper plate body 31 of interlayer, installing plate and cabinet both sides surrounds the first heat dissipation wind channel, the cooling electronic component amount installed due to bottom, front storehouse 1 is extremely low, by bottom, front storehouse 1 enter air themperature promote negligible, by the first fan group 10, air is pumped in the first heat dissipation wind channel again, it is positioned at, by the first heat dissipation wind channel, the louvre 11 that cabinet top board is provided with to discharge, thus dispelling the heat to the IGBT power tube being arranged on fixing plate 4 in air channel. Due to the blast that the first fan group 10 convulsion produces, flowing to the top, front storehouse 1 air after bus capacitor dispels the heat can flow as the first fan group 10, with bottom, front storehouse 1 enter air converge and sent in the first heat dissipation wind channel by the first fan group 10.
In rear storehouse 2, interlayer 2, the both sides panel of cabinet and rear board surround the louvre that the second heat dissipation wind channel, chassis backplane and bottom surrounding sidewall arrange and constitute the air inlet of this second heat dissipation wind channel, and the second fan group 20 that top board is installed constitutes air outlet. After the second fan group 20 starts, air in rear storehouse 2 is retracted to outside cabinet through the second fan group 20 being arranged on cabinet top board, rear storehouse 2 produces pressure, after outside air enters from the air inlet 22 surrounding sidewall bottom cabinet, it is provided with in the rear storehouse 2 that air inlet 21 enters cabinet by chassis backplane again, the air inlet 21 that air is provided with from chassis backplane flows to the second fan group 20 being arranged on cabinet top board straight, and the heat distributed by electronic devices and components takes cabinet out of.
After the middle plate body 32 of interlayer 3 adopts inclined design, be conducive to air flowing in this second heat dissipation wind channel, it is to avoid because of horizontally disposed the phenomenon producing backflow.
The present invention compared with prior art, it is an advantage of the current invention that:
One, double; two air duct radiation is adopted, reactor, transformator and IGBT power tube are in independent air channel, heat radiation independently, so that the temperature at the fast IGBT place of reactor, transformator and power mould greatly reduces, thus improving its efficiency, extend the service life of machine, the life-span of fan also can be made to be greatly improved simultaneously, reduce the cost of fan.
Two, simple in construction, easy to maintenance.
Three, Qian Cang and rear storehouse are independent of one another, and when reducing IGBT power tube aircraft bombing, its fragment can cause the risk that reactor, transformer secondary explode.
Four, Qian Cang and rear storehouse shield completely, sine wave that reactor produces and the rectangular wave that IGBT produces can be made mutually to shield, will not influence each other, the performance of machine can be made to improve.
Five, the Duct design in this cabinet, can effectively give the heat radiations such as the pcb plate of control chamber, the power module of power supply, bus capacitor, switch, bus bar copper row, copper bar, make machine efficiency and performance be greatly improved.
Six, adopting double duct system, transformator, reactor air channel adopt from bottom surrounding air intake; IGBT constant power module adopts from above air intake. Like this, the dust of interior of equipment cabinet will being made greatly to reduce, reduce some risks, and windage is protected, improving the heat radiation of machine, thus improving performance and the efficiency of machine. Be far longer than (PCC) power and circuit board due to the ability of reactor and transformator anti-dust, so can do dust guard to respectively the air inlet in storehouse, front and back, or only the air inlet on front panel does dust guard.

Claims (7)

1. the casing being used for installing photovoltaic combining inverter, it is characterised in that: described casing is divided into front storehouse (1) and rear storehouse (2) by an interlayer (3); Described interlayer includes being perpendicular to the upper plate body (31) that cabinet top board is arranged, and is perpendicular to the lower body (33) that chassis backplane is arranged, and described upper plate body (31) is connected by the middle plate body (32) of horizontal positioned with lower body (33); In described front storehouse, cabinet top board is provided with the fixing plate (4) being parallel to described upper plate body (31) vertically downward, and its both sides are connected by screw is fixing with the panel of casing both sides, and described fixing plate (4) and interlayer (3) form the first heat dissipation wind channel; Being provided with the first fan group (10) between described interlayer (3) and described fixing plate (4), described first heat dissipation wind channel top is provided with louvre (11) on the top board of described cabinet; The front door (5) of described cabinet is provided with the air inlet leading to Qian Cang (1); Described rear storehouse (2) is provided with the second fan group (20) for convulsion on described enclosure top, is respectively equipped with, at described chassis backplane and bottom surrounding sidewall, the air inlet (21 leading to Hou Cang (2); 22) the second heat dissipation wind channel, it is consequently formed;
Described upper plate body (31) is provided with fan power supply module (40) in the side of Hou Cang (2), upper plate body (31) is arranged below the removable fixation means of drawer type for fixing the first fan group (10) in fan power supply module (40), in rear storehouse by this device pull out, put into the first fan group (10) and fix, again together with the first fan group (10), this device being pushed the underface being positioned at fixing plate (4) in front storehouse (1), fan power supply module (40) electrically connects with the first fan group (10), the second fan group (20) respectively;
Described middle plate body (32) is a bent plate, including the tilting section being connected with described upper plate body (31) and the horizontal segment being connected with described lower body (33);
The bottom of described front storehouse (1) is provided with dismountable baffle plate (6), which is provided with the air inlet leading to front storehouse; In described front storehouse (1), the top adjacent with bottom is respectively equipped with the upper left door cover plate (7) and upper right door cover plate (8) split, the downside of described upper left door cover plate (7) and the upside of described upper right door cover plate (8) and is provided with the air inlet leading to front storehouse.
2. the casing for installing photovoltaic combining inverter according to claim 1, it is characterised in that: described middle plate body (32) two ends are connected with described upper plate body (31), lower body (33) respectively through screw.
3. the casing for installing photovoltaic combining inverter according to claim 1, it is characterized in that: the upper part of described front storehouse (1) is positioned at the inner side of described upper left door cover plate (7) and is additionally provided with one for installing the inner plating (9) of pcb board, inner plating (9) upside is provided with the air inlet leading to front storehouse.
4. the casing for installing photovoltaic combining inverter according to claim 3, it is characterized in that: the left side of described inner plating (9) and the right side of upper right door cover plate (8) are connected with casing by hinge, and the hinge that passes on left of described upper left door cover plate (7) is connected with described inner plating (9).
5. the casing for installing photovoltaic combining inverter according to any one of claims 1 to 3, it is characterised in that: the air inlet on described front door (5) is provided with ventilation filter assembly.
6. the casing for installing photovoltaic combining inverter according to any one of claims 1 to 3, it is characterised in that: bottom described cabinet, the air inlet of surrounding is provided with fly net.
7. the casing for installing photovoltaic combining inverter according to any one of claims 1 to 3, it is characterised in that: the Rear Door of described cabinet is provided with the air inlet leading to rear storehouse.
CN201310197264.6A 2013-05-24 2013-05-24 A kind of casing for installing photovoltaic combining inverter Expired - Fee Related CN103269168B (en)

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CN103269168B true CN103269168B (en) 2016-06-08

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CN103561552B (en) * 2013-10-25 2016-03-30 华为技术有限公司 Radiator structure and electronic installation
CN104868750B (en) * 2015-04-27 2017-10-27 青岛艾迪森科技股份有限公司 Inverter with radiating redundancy feature
CN109564810B (en) * 2016-08-09 2022-06-07 三菱电机株式会社 Power supply device for ozone generator and ozone generator
CN108260321A (en) * 2016-12-29 2018-07-06 技嘉科技股份有限公司 Radiator
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KR102064247B1 (en) 2018-01-30 2020-02-11 엘에스산전 주식회사 Inverter and method for controlling thereof
CN109347336B (en) * 2018-10-17 2020-12-01 临沂文衡信息技术有限公司 Inverter case structure for photovoltaic cell
EP4138528A4 (en) * 2020-05-06 2023-06-07 Huawei Digital Power Technologies Co., Ltd. Heat dissipating cabinet and communication device
CN116232013B (en) * 2023-05-06 2023-08-04 深圳市首航新能源股份有限公司 Inverter and electrical equipment

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EP1874104A2 (en) * 2006-06-21 2008-01-02 Oelmaier Industrieelektronik GmbH Wall mounting for converter of a photovoltaic device and converter with such a wall mounting
CN202524318U (en) * 2012-03-28 2012-11-07 常熟开关制造有限公司(原常熟开关厂) Inverter
CN202772807U (en) * 2012-08-31 2013-03-06 深圳市汇川技术股份有限公司 Photovoltaic inverter and photovoltaic inverter cabinet

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EP1874104A2 (en) * 2006-06-21 2008-01-02 Oelmaier Industrieelektronik GmbH Wall mounting for converter of a photovoltaic device and converter with such a wall mounting
CN202524318U (en) * 2012-03-28 2012-11-07 常熟开关制造有限公司(原常熟开关厂) Inverter
CN202772807U (en) * 2012-08-31 2013-03-06 深圳市汇川技术股份有限公司 Photovoltaic inverter and photovoltaic inverter cabinet

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