WO2015192633A1 - Photovoltaic inverter having long life, low power consumption and zero noise - Google Patents

Photovoltaic inverter having long life, low power consumption and zero noise Download PDF

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Publication number
WO2015192633A1
WO2015192633A1 PCT/CN2014/095211 CN2014095211W WO2015192633A1 WO 2015192633 A1 WO2015192633 A1 WO 2015192633A1 CN 2014095211 W CN2014095211 W CN 2014095211W WO 2015192633 A1 WO2015192633 A1 WO 2015192633A1
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Prior art keywords
heat dissipation
cover
noise
photovoltaic inverter
long
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PCT/CN2014/095211
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French (fr)
Chinese (zh)
Inventor
徐新华
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Shenzhen Maorun Electric Co Ltd
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Shenzhen Maorun Electric Co Ltd
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    • 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
    • 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
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the invention relates to an inverter, in particular to a vehicle long-life low-power zero-noise photovoltaic inverter.
  • the car inverter (Power Inverter) is a kind of AC power converter that can convert DC12V DC into the same AC220V AC as the mains.
  • Car inverters are widely welcomed in foreign markets. In foreign countries, because of the high penetration rate of automobiles, you can use the inverter to connect the battery to drive the electrical appliances and various tools to work when you go out to work or go out for a trip. After China entered the WTO, there are more and more private vehicles in the domestic market. Therefore, the car inverter as a converter for DC to AC used in mobile will bring a lot of convenience to people's lives. It is a standing car. Use automotive electronics and supplies.
  • Commonly used on-board inverters on the market generally include a housing and a circuit board and a heat sink disposed in the housing.
  • the radiator of the vehicle inverter adopts a cooling fan, and the cooling fan is used as a cooling fan.
  • the heat sink has the following drawbacks: the cooling fan is a power-consuming device, which increases the overall power consumption of the vehicle-mounted inverter, and the heat-dissipating fan has a limited service life and is easily damaged.
  • the cooling fan has a large noise in the vehicle. When used, the environment inside the car is seriously affected. Further, the cost of the cooling fan is high, which increases the overall cost of the inverter.
  • an object of the present invention is to provide a long-life low-power zero-noise photovoltaic inverter.
  • the present invention provides a long life low power zero noise photovoltaic inverter, including
  • a housing having a first ventilation structure thereon
  • circuit board a circuit board, the circuit board being disposed inside the housing;
  • the second ventilation structure is configured to enable air to convect between the first ventilation structure and the second ventilation structure.
  • the circuit board has a transformer coil
  • the heat dissipation cover includes a first heat dissipation cover and a second heat dissipation cover disposed side by side, and the first heat dissipation cover is adjacent to the second heat dissipation cover
  • One end is provided with a first notch
  • one end of the second heat dissipating plate opposite to the first notch is provided with a second notch, and the first notch and the second notch define a matching with the transformer coil
  • the storage tank is housed in the storage groove.
  • the circuit board has a heat source
  • the heat dissipation cover further includes a third heat dissipation cover, and the third heat dissipation cover is correspondingly disposed above the heat source.
  • the housing includes
  • a left end cover and a right end cover the left end cover is closed to the left end of the upper case and the lower case, and the right end cover is closed to the right end of the upper case and the lower case.
  • the left end cover and the right end cover are in a plate-like structure, and the upper and lower casings have a U-shaped structure, and the inner sidewalls of the upper and lower casings are correspondingly provided with a sliding slot.
  • the edge of the left end cover is correspondingly disposed in the sliding slot of the upper end of the upper casing and the lower casing, and the edge of the right end cover is correspondingly disposed in the sliding slot of the right end of the upper casing and the lower casing .
  • the first ventilation structure includes a ventilation hole A disposed on a surface of the upper casing and a ventilation hole B disposed on a lower surface of the lower casing.
  • the second ventilation structure is a ventilation hole C disposed on the heat dissipation cover.
  • left end cover and the right end cover are provided with ventilation holes D.
  • ventilation hole A, the ventilation hole B, the ventilation hole C and the ventilation hole D are any one of a strip hole, a circular hole, a square hole and a polygonal hole.
  • venting hole A and the venting hole B are strip-shaped holes
  • venting holes C and the venting holes D are circular holes, square holes or polygonal holes.
  • the long-life low-power zero-noise photovoltaic inverter provided by the invention adopts an aluminum-type heat-dissipating cover as a heat sink, and on the other hand, since the heat-dissipating cover does not need electricity, the power consumption can be reduced, on the other hand, The heat-dissipating cover does not generate any noise during use, so zero noise can be achieved, and the environment to be used is more in line with people's requirements. Further, the cost is lower than that of the heat-dissipating fan, and further, it is set on the casing.
  • the first ventilation structure and the second ventilation structure disposed on the heat dissipation cover can form air convection to achieve the same or even better heat dissipation effect as the heat dissipation fan.
  • the inverter of the invention has long service life, low power consumption, no noise, and low cost.
  • FIG. 1 is a schematic exploded view of an embodiment of the present invention
  • FIG. 2 is a combined state diagram of the upper casing and the lower casing of the embodiment of the present invention.
  • Figure 3 is a perspective view of an embodiment of the present invention.
  • upper casing 10 ventilation hole A101; heat dissipation ribs 102, 113; lower casing 11; chute 111; vent hole B112; left end cover 12; right end cover 13; vent holes D121, 131; a heat dissipation cover 20; a first notch 201; ventilation holes C202, 212, 221; a second heat dissipation cover 21; a second notch 211; a third heat dissipation cover 22; a circuit board 30; and a transformer coil 301.
  • embodiments of the present invention provide a long-life, low-power, zero-noise photovoltaic inverter including a housing, a circuit board 30, and a heat dissipation cover.
  • the housing is provided with a first ventilation structure for transmitting heat inside the housing.
  • the circuit board 30 is disposed inside the casing and generates a large amount of heat in an operating state.
  • the heat dissipation cover is made of an aluminum material, and the heat dissipation cover is fixedly mounted inside the casing, and is disposed above the circuit board 30 for absorbing heat released by the circuit board 30; the heat dissipation cover is further provided with the first ventilation structure An opposing second venting structure to enable air to convect between the first venting structure and the second venting structure. Since the air can convect between the first ventilation structure and the second ventilation structure, the heat dissipation cover absorbs heat quickly to the outside of the housing as the air flows, achieving rapid heat dissipation.
  • the long-life low-power zero-noise photovoltaic inverter provided by the invention adopts an aluminum-type heat-dissipating cover plate as a heat sink, and on the other hand, since the heat-dissipating cover plate does not need electricity, the power consumption can be reduced, on the other hand
  • the heat-dissipating cover does not generate any noise during use. Therefore, zero noise can be achieved, and the environment to be used is more in line with people's requirements. Further, the cost is lower than that of the heat-dissipating fan, and further, on the casing.
  • the first ventilation structure and the second ventilation structure disposed on the heat dissipation cover can form air convection to achieve the same or even better heat dissipation effect as the heat dissipation fan.
  • the inverter of the invention has long service life, low power consumption, no noise, and low cost.
  • the circuit board 30 has a transformer coil 301
  • the heat dissipation cover includes a first heat dissipation cover 20 and a second heat dissipation cover 21 disposed side by side, wherein the first heat dissipation cover 20 is adjacent to the first heat dissipation cover 20
  • One end of the second heat dissipating cover 21 is provided with a first notch 201.
  • the second end of the second heat dissipating plate opposite to the first notch 201 is provided with a second notch 211.
  • the first notch 201 and the second notch 211 enclose a transformer coil 301.
  • the matching housing groove and the transformer coil 301 are housed in the housing groove.
  • the transformer coil 301 serves as the most important heat source on the circuit board 30, and the heat thereon can be quickly absorbed by the first heat dissipation cover 20 and the second heat dissipation cover 21, and the absorbed heat is further convected by air. Passed to the outside of the housing for good heat dissipation.
  • first heat dissipation cover 20 and the second heat dissipation cover 21 In order to allow the first heat dissipation cover 20 and the second heat dissipation cover 21 to sufficiently absorb the heat released by the circuit board 30 After the first heat dissipation cover 20 and the second heat dissipation cover 21 are arranged side by side, they can completely cover the circuit board 30, or are slightly wider than the circuit board 30, so that heat absorption is better, and better heat dissipation is achieved. effect.
  • the circuit board 30 has a heat source (other heat source than the transformer coil 301), and the heat dissipation cover plate further includes a third heat dissipation cover 22, and the third heat dissipation cover 22 is correspondingly disposed.
  • the heat of the heat source can be quickly absorbed by the third heat sink cover 22 and further released to the outside of the casing to promote the heat dissipation effect.
  • the third heat dissipation cover 22 can be located below the first heat dissipation cover 20 and the second heat dissipation cover 21, and can be specifically set according to the specific position of the heat source.
  • the housing includes an upper housing 10, a lower housing 11, and a left end cover 12 and a right end cover 13, wherein the lower housing 11 is detachably coupled to the upper housing 11, and the left end cover 12 covers the left end of the upper casing 10 and the lower casing 11, and the right end cover 13 covers the right ends of the upper casing 10 and the lower casing 11.
  • the casing of this structure is convenient for assembly and disassembly, and is also convenient for production and processing.
  • the left end cover 12 and the right end cover 13 have a plate-like structure, and the upper casing 10 and the lower casing 11 have a U-shaped structure, and the inner side walls of the upper casing 10 and the lower casing 11 are correspondingly provided with chutes.
  • the edge of the left end cover 12 is correspondingly disposed in the sliding slot 111 of the left end of the upper housing 10 and the lower housing 11.
  • the edge of the right end cover 13 corresponds to the sliding slot of the right end of the upper housing 10 and the lower housing 11. In 111, so, the assembly is convenient, the structure is firm, and the disassembly is more convenient.
  • the first ventilation structure includes a ventilation hole A101 disposed on a surface of the upper casing 10 and a ventilation hole B112 disposed on a lower surface of the upper casing 10, such that the ventilation hole A101 and the ventilation hole B112 are formed.
  • the second ventilation structure is a ventilation hole C202, 212, 221 disposed on the first heat dissipation cover 20, the second heat dissipation cover 21, and the third heat dissipation cover 22.
  • the external air can form a convection in the longitudinal direction by sequentially passing through the vent hole A101, the second ventilation structure on the heat dissipation cover, and the vent hole B112, thereby achieving a good heat dissipation effect.
  • the left end cover 12 and the right end cover 13 are also provided with ventilation holes D121, 131, so that outside air can also enter the inside of the housing through the left end cover 12, and then flow from the right end cover 13 to the outside of the housing to form a lateral direction.
  • the air convection on the air further enhances the heat dissipation effect, and the heat dissipation effect can achieve the same or even better effect of the cooling fan.
  • the vent hole A101, the vent hole B112, the vent holes C202, 212, 221 and the vent holes D121, 131 are any one of a strip hole, a circular hole, a square hole and a polygonal hole. More preferably, the vent hole A101 and the vent hole B112 are strip-shaped holes, and the strip-shaped holes are plural, and a plurality of strip-shaped holes are arranged side by side on the surfaces of the upper case 10 and the lower case 11, and the vent hole C202 , 212, 221 and pass
  • the air holes D121 and 131 are circular holes, square holes or polygonal holes, and the plurality of circular holes, square holes or polygonal holes are evenly distributed on the first heat dissipation cover 20 and the second.
  • the surfaces of the heat dissipation cover 21 and the third heat dissipation cover 22 There are a plurality of ventilation holes D121 and 131, and a plurality of ventilation holes D121 and 131 are evenly distributed on the left end cover 12 and the right end cover 13, so that the convection heat dissipation effect is better.
  • the outer surfaces of the upper casing 10 and the lower casing 11 are further provided with heat dissipation ribs 102, 113 to increase the heat dissipation effect.
  • the long-life, low-power, zero-noise photovoltaic inverter provided by the present invention uses an aluminum-type heat-dissipating cover as a heat sink, and has the advantages of long service life, low power consumption, no noise, and low cost.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patents.
  • the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Inverter Devices (AREA)

Abstract

A photovoltaic inverter, comprising: a casing (10, 11, 12, 13), a first ventilation structure (101, 112) being provided on the casing; a circuit board (30), the circuit board being arranged within the casing; heat dissipation cover plates (20, 21, 22), the heat dissipation cover plates being an aluminium-type material, and being fixedly installed within the casing and arranged above the circuit board. A second ventilation structure (202, 212, 221) relative to the first ventilation structure is provided on the heat dissipation cover plates so that air convection occurs between the first ventilation structure and the second ventilation structure. The photovoltaic inverter uses the aluminium-type material heat dissipation cover plates as a heat sink, and has the advantages of a long service life, low power consumption, zero noise and low costs.

Description

长寿命低功耗零噪音光伏逆变器Long life low power zero noise photovoltaic inverter 技术领域Technical field

本发明涉及逆变器，特别涉及一种车载长寿命低功耗零噪音光伏逆变器。The invention relates to an inverter, in particular to a vehicle long-life low-power zero-noise photovoltaic inverter.

背景技术Background technique

车载逆变器(电源转换器、Power Inverter)是一种能够将DC12V直流电转换为和市电相同的AC220V交流电，供一般电器使用，是一种方便的车用电源转换器。车载逆变器在国外市场受到普遍欢迎。在国外因汽车的普及率较高，外出工作或外出旅游即可用逆变器连接蓄电池带动电器及各种工具工作。中国进入WTO后，国内市场私人交通工具越来越多，因此，车载逆变器作为在移动中使用的直流变交流的转换器，会给人们生活带来很多的方便，是一种常备的车用汽车电子装具用品。The car inverter (Power Inverter) is a kind of AC power converter that can convert DC12V DC into the same AC220V AC as the mains. Car inverters are widely welcomed in foreign markets. In foreign countries, because of the high penetration rate of automobiles, you can use the inverter to connect the battery to drive the electrical appliances and various tools to work when you go out to work or go out for a trip. After China entered the WTO, there are more and more private vehicles in the domestic market. Therefore, the car inverter as a converter for DC to AC used in mobile will bring a lot of convenience to people's lives. It is a standing car. Use automotive electronics and supplies.

市场上常见的车载逆变器，一般包括壳体及设置于壳体内的线路板、散热器等，为了达到较好的散热效果，车载逆变器的散热器都采用散热风扇，以散热风扇作为散热器，存在以下缺陷：散热风扇为用电设备，在增大了车载逆变器的整体功耗，同时散热风扇使用寿命有限，容易损坏，此外，散热风扇具有较大的噪音，在车内使用时严重影响了车内的环境，进一步的，散热风扇成本高，增加了逆变器的整体成本。Commonly used on-board inverters on the market generally include a housing and a circuit board and a heat sink disposed in the housing. In order to achieve a better heat dissipation effect, the radiator of the vehicle inverter adopts a cooling fan, and the cooling fan is used as a cooling fan. The heat sink has the following drawbacks: the cooling fan is a power-consuming device, which increases the overall power consumption of the vehicle-mounted inverter, and the heat-dissipating fan has a limited service life and is easily damaged. In addition, the cooling fan has a large noise in the vehicle. When used, the environment inside the car is seriously affected. Further, the cost of the cooling fan is high, which increases the overall cost of the inverter.

发明内容Summary of the invention

本发明旨在至少解决现有技术中存在的技术问题之一，为此，本发明的目的在于提供一种长寿命低功耗零噪音光伏逆变器。The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a long-life low-power zero-noise photovoltaic inverter.

为实现上述目的，本发明提供的长寿命低功耗零噪音光伏逆变器，包括To achieve the above object, the present invention provides a long life low power zero noise photovoltaic inverter, including

壳体，所述壳体上设有第一通风结构；a housing having a first ventilation structure thereon;

线路板，所述线路板设置于所述壳体内部；a circuit board, the circuit board being disposed inside the housing;

散热盖板，其为铝型材质，所述散热盖板固定安装于所述壳体内部，且设在所述线路板的上方；所述散热盖板上设有与所述第一通风结构相对的第二通风结构以使空气能够在所述第一通风结构与第二通风结构之间对流。a heat dissipating cover plate, which is fixed in the interior of the casing and disposed above the circuit board; The second ventilation structure is configured to enable air to convect between the first ventilation structure and the second ventilation structure.

下面对上述技术问题作进一步阐述：The above technical issues are further elaborated below:

进一步的，所述线路板上具有一变压器线圈，所述散热盖板包括并排设置第一散热盖板及第二散热盖板，所述第一散热盖板上靠近所述第二散热盖板的一端设有第一缺口，所述第二散热板上与所述第一缺口相对的一端设有第二缺口，所述第一缺口与第二缺口围成一与所述变压器线圈相适配的收纳槽，所述变压器线圈收容于所述收纳槽内。 Further, the circuit board has a transformer coil, and the heat dissipation cover includes a first heat dissipation cover and a second heat dissipation cover disposed side by side, and the first heat dissipation cover is adjacent to the second heat dissipation cover One end is provided with a first notch, and one end of the second heat dissipating plate opposite to the first notch is provided with a second notch, and the first notch and the second notch define a matching with the transformer coil The storage tank is housed in the storage groove.

进一步的，所述线路板上具有发热源，所述散热盖板还包括第三散热盖板，所述第三散热盖板对应设在所述发热源的上方。Further, the circuit board has a heat source, and the heat dissipation cover further includes a third heat dissipation cover, and the third heat dissipation cover is correspondingly disposed above the heat source.

进一步的，所述壳体包括Further, the housing includes

上壳体；Upper housing

下壳体，与所述上壳体可拆卸式连接；a lower housing detachably connected to the upper housing;

及左端盖和右端盖，所述左端盖盖合于所述上壳体、下壳体的左端，所述右端盖盖合于所述上壳体、下壳体的右端。And a left end cover and a right end cover, the left end cover is closed to the left end of the upper case and the lower case, and the right end cover is closed to the right end of the upper case and the lower case.

进一步的，所述左端盖及右端盖为板状结构，所述上壳体及下壳体呈“U”型结构，所述上壳体及下壳体两端的内侧壁对应设有滑槽内，所述左端盖的边缘对应卡设于所述上壳体和下壳体左端的滑槽内，所述右端盖的边缘对应卡设于所述上壳体和下壳体右端的滑槽内。Further, the left end cover and the right end cover are in a plate-like structure, and the upper and lower casings have a U-shaped structure, and the inner sidewalls of the upper and lower casings are correspondingly provided with a sliding slot. The edge of the left end cover is correspondingly disposed in the sliding slot of the upper end of the upper casing and the lower casing, and the edge of the right end cover is correspondingly disposed in the sliding slot of the right end of the upper casing and the lower casing .

进一步的，所述第一通风结构包括设置于所述上壳体表面的通风孔A及设置在所述下壳体下表面的通风孔B。Further, the first ventilation structure includes a ventilation hole A disposed on a surface of the upper casing and a ventilation hole B disposed on a lower surface of the lower casing.

进一步的，所述第二通风结构为设置在所述散热盖板上的通风孔C。Further, the second ventilation structure is a ventilation hole C disposed on the heat dissipation cover.

进一步的，所述左端盖及右端盖上设有通风孔D。Further, the left end cover and the right end cover are provided with ventilation holes D.

进一步的，所述通风孔A、通风孔B、通风孔C及通风孔D为条形孔、圆形孔、方形孔及多边形孔中的任一种。Further, the ventilation hole A, the ventilation hole B, the ventilation hole C and the ventilation hole D are any one of a strip hole, a circular hole, a square hole and a polygonal hole.

进一步的，所述通风孔A及通风孔B为条形孔，所述通风孔C及通风孔D为圆形孔、方形孔或多边形孔。Further, the venting hole A and the venting hole B are strip-shaped holes, and the venting holes C and the venting holes D are circular holes, square holes or polygonal holes.

本发明提供的长寿命低功耗零噪音光伏逆变器，采用铝型材质的散热盖板作为散热器，一方面由于散热盖板不需要用电，因此，可以降低功耗，另一方面，在使用过程中散热盖板不会产生任何噪声，因此，可以做到零噪声，保证使用的环境更加符合人们的要求，进一步的，其成本相对于散热风扇更低，此外，在壳体上设置的第一通风结构与散热盖板上设置的第二通风结构，可以形成空气对流，达到与散热风扇相同甚至是更好的散热效果。藉此，本发明的逆变器，使用寿命长、功耗低、无噪音、成本低。The long-life low-power zero-noise photovoltaic inverter provided by the invention adopts an aluminum-type heat-dissipating cover as a heat sink, and on the other hand, since the heat-dissipating cover does not need electricity, the power consumption can be reduced, on the other hand, The heat-dissipating cover does not generate any noise during use, so zero noise can be achieved, and the environment to be used is more in line with people's requirements. Further, the cost is lower than that of the heat-dissipating fan, and further, it is set on the casing. The first ventilation structure and the second ventilation structure disposed on the heat dissipation cover can form air convection to achieve the same or even better heat dissipation effect as the heat dissipation fan. Thereby, the inverter of the invention has long service life, low power consumption, no noise, and low cost.

附图说明DRAWINGS

图1是本发明实施例的分解结构示意图；1 is a schematic exploded view of an embodiment of the present invention;

图2时本发明实施例的上壳体与下壳体分离的组合状态图；2 is a combined state diagram of the upper casing and the lower casing of the embodiment of the present invention;

图3时本发明实施例的立体图；Figure 3 is a perspective view of an embodiment of the present invention;

图中：上壳体10；通风孔A101；散热筋102、113；下壳体11；滑槽111；通风孔B112；左端盖12；右端盖13；通风孔D121、131；第 一散热盖板20；第一缺口201；通风孔C202、212、221；第二散热盖板21；第二缺口211；第三散热盖板22；线路板30；变压器线圈301。In the figure: upper casing 10; ventilation hole A101; heat dissipation ribs 102, 113; lower casing 11; chute 111; vent hole B112; left end cover 12; right end cover 13; vent holes D121, 131; a heat dissipation cover 20; a first notch 201; ventilation holes C202, 212, 221; a second heat dissipation cover 21; a second notch 211; a third heat dissipation cover 22; a circuit board 30; and a transformer coil 301.

本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

具体实施方式detailed description

以下将结合附图及具体实施例详细说明本发明的技术方案，以便更清楚、直观地理解本发明的发明实质。The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments in order to understand the invention.

参照图1至图3所示，本发明的实施例提供了长寿命低功耗零噪音光伏逆变器，包括壳体、线路板30及散热盖板。Referring to Figures 1 to 3, embodiments of the present invention provide a long-life, low-power, zero-noise photovoltaic inverter including a housing, a circuit board 30, and a heat dissipation cover.

壳体上设有第一通风结构，用于将壳体内部的热量传出。线路板30设置于壳体内部，在工作状态下产生大量热量。散热盖板为铝型材质，该散热盖板固定安装于壳体内部，且设在线路板30的上方，用于吸收线路板30释放的热量；散热盖板上还设有与第一通风结构相对的第二通风结构以使空气能够在第一通风结构与第二通风结构之间对流。由于空气可以在第一通风结构和第二通风结构之间对流，所以散热盖板吸收热量随着空气的流动快速地传递至壳体外部，实现快速散热。The housing is provided with a first ventilation structure for transmitting heat inside the housing. The circuit board 30 is disposed inside the casing and generates a large amount of heat in an operating state. The heat dissipation cover is made of an aluminum material, and the heat dissipation cover is fixedly mounted inside the casing, and is disposed above the circuit board 30 for absorbing heat released by the circuit board 30; the heat dissipation cover is further provided with the first ventilation structure An opposing second venting structure to enable air to convect between the first venting structure and the second venting structure. Since the air can convect between the first ventilation structure and the second ventilation structure, the heat dissipation cover absorbs heat quickly to the outside of the housing as the air flows, achieving rapid heat dissipation.

根据本发明提供的长寿命低功耗零噪音光伏逆变器，采用铝型材质的散热盖板作为散热器，一方面由于散热盖板不需要用电，因此，可以降低功耗，另一方面，在使用过程中散热盖板不会产生任何噪声，因此，可以做到零噪声，保证使用的环境更加符合人们的要求，进一步的，其成本相对于散热风扇更低，此外，在壳体上设置的第一通风结构与散热盖板上设置的第二通风结构，可以形成空气对流，达到与散热风扇相同甚至是更好的散热效果。藉此，本发明的逆变器，使用寿命长、功耗低、无噪音、成本低。The long-life low-power zero-noise photovoltaic inverter provided by the invention adopts an aluminum-type heat-dissipating cover plate as a heat sink, and on the other hand, since the heat-dissipating cover plate does not need electricity, the power consumption can be reduced, on the other hand The heat-dissipating cover does not generate any noise during use. Therefore, zero noise can be achieved, and the environment to be used is more in line with people's requirements. Further, the cost is lower than that of the heat-dissipating fan, and further, on the casing. The first ventilation structure and the second ventilation structure disposed on the heat dissipation cover can form air convection to achieve the same or even better heat dissipation effect as the heat dissipation fan. Thereby, the inverter of the invention has long service life, low power consumption, no noise, and low cost.

在本发明的一个实施例中，线路板30上具有一变压器线圈301，散热盖板包括并排设置第一散热盖板20及第二散热盖板21，其中的第一散热盖板20上靠近第二散热盖板21的一端设有第一缺口201，第二散热板上与第一缺口201相对的一端设有第二缺口211，第一缺口201与第二缺口211围成一与变压器线圈301相适配的收纳槽，变压器线圈301收容于收纳槽内。如此，变压器线圈301作为线路板30上的最主要的热源，其上的热量可以快速地被第一散热盖板20和第二散热盖板21吸收，吸收后的热量在进一步通过空气对流的方式传递至壳体外部，达到良好的散热效果。In one embodiment of the present invention, the circuit board 30 has a transformer coil 301, and the heat dissipation cover includes a first heat dissipation cover 20 and a second heat dissipation cover 21 disposed side by side, wherein the first heat dissipation cover 20 is adjacent to the first heat dissipation cover 20 One end of the second heat dissipating cover 21 is provided with a first notch 201. The second end of the second heat dissipating plate opposite to the first notch 201 is provided with a second notch 211. The first notch 201 and the second notch 211 enclose a transformer coil 301. The matching housing groove and the transformer coil 301 are housed in the housing groove. Thus, the transformer coil 301 serves as the most important heat source on the circuit board 30, and the heat thereon can be quickly absorbed by the first heat dissipation cover 20 and the second heat dissipation cover 21, and the absorbed heat is further convected by air. Passed to the outside of the housing for good heat dissipation.

为了使第一散热盖板20和第二散热盖板21充分吸收线路板30释放的热 量，第一散热盖板20和第二散热盖板21并排后刚好能够完全覆盖线路板30，或者相对于线路板30略宽，如此，更有利于热量的吸收，达到更好更快的散热效果。In order to allow the first heat dissipation cover 20 and the second heat dissipation cover 21 to sufficiently absorb the heat released by the circuit board 30 After the first heat dissipation cover 20 and the second heat dissipation cover 21 are arranged side by side, they can completely cover the circuit board 30, or are slightly wider than the circuit board 30, so that heat absorption is better, and better heat dissipation is achieved. effect.

在本发明的另一实施例中，线路板30上具有发热源(除变压器线圈301以外的其他热源)，散热盖板对应的还包括第三散热盖板22，第三散热盖板22对应设在发热源的上方，如此，该发热源的热量可以快速被第三散热盖板22吸收，再进一步释放至壳体外，促进散热效果。In another embodiment of the present invention, the circuit board 30 has a heat source (other heat source than the transformer coil 301), and the heat dissipation cover plate further includes a third heat dissipation cover 22, and the third heat dissipation cover 22 is correspondingly disposed. Above the heat source, the heat of the heat source can be quickly absorbed by the third heat sink cover 22 and further released to the outside of the casing to promote the heat dissipation effect.

可以理解的是，第三散热盖板22可以位于第一散热盖板20、第二散热盖板21的下方，具体可以根据发热源的具体位置设置。It can be understood that the third heat dissipation cover 22 can be located below the first heat dissipation cover 20 and the second heat dissipation cover 21, and can be specifically set according to the specific position of the heat source.

在本发明的一个具体示例中，壳体包括上壳体10、下壳体11及左端盖12和右端盖13，其中，下壳体11与所述上壳体11可拆卸式连接，左端盖12盖合于上壳体10、下壳体11的左端，右端盖13盖合于上壳体10、下壳体11的右端，这种结构的壳体，便于组装拆卸，也便于生产加工。In a specific example of the present invention, the housing includes an upper housing 10, a lower housing 11, and a left end cover 12 and a right end cover 13, wherein the lower housing 11 is detachably coupled to the upper housing 11, and the left end cover 12 covers the left end of the upper casing 10 and the lower casing 11, and the right end cover 13 covers the right ends of the upper casing 10 and the lower casing 11. The casing of this structure is convenient for assembly and disassembly, and is also convenient for production and processing.

作为优选地，左端盖12及右端盖13为板状结构，上壳体10及下壳体11呈“U”型结构，上壳体10及下壳体11两端的内侧壁对应设有滑槽111内，左端盖12的边缘对应卡设于上壳体10和下壳体11左端的滑槽111内，右端盖13的边缘对应卡设于上壳体10和下壳体11右端的滑槽111内，如此，组装方便，结构牢固，同时拆卸也更加方便。Preferably, the left end cover 12 and the right end cover 13 have a plate-like structure, and the upper casing 10 and the lower casing 11 have a U-shaped structure, and the inner side walls of the upper casing 10 and the lower casing 11 are correspondingly provided with chutes. In the 111, the edge of the left end cover 12 is correspondingly disposed in the sliding slot 111 of the left end of the upper housing 10 and the lower housing 11. The edge of the right end cover 13 corresponds to the sliding slot of the right end of the upper housing 10 and the lower housing 11. In 111, so, the assembly is convenient, the structure is firm, and the disassembly is more convenient.

在本发明的一个优选实施例中，第一通风结构包括设置于上壳体10表面的通风孔A101及设置在上壳体10下表面的通风孔B112，如此，通风孔A101与通风孔B112形成上下对应状态，对应的，第二通风结构为设置在第一散热盖板20、第二散热盖板21及第三散热盖板22上的通风孔C202、212、221。如此，外部空气可以通过依次通过通风孔A101、散热盖板上的第二通风结构及通风孔B112，形成纵向上的空气对流，达到良好的散热效果。In a preferred embodiment of the present invention, the first ventilation structure includes a ventilation hole A101 disposed on a surface of the upper casing 10 and a ventilation hole B112 disposed on a lower surface of the upper casing 10, such that the ventilation hole A101 and the ventilation hole B112 are formed. Correspondingly, the second ventilation structure is a ventilation hole C202, 212, 221 disposed on the first heat dissipation cover 20, the second heat dissipation cover 21, and the third heat dissipation cover 22. In this way, the external air can form a convection in the longitudinal direction by sequentially passing through the vent hole A101, the second ventilation structure on the heat dissipation cover, and the vent hole B112, thereby achieving a good heat dissipation effect.

更为有利的，左端盖12及右端盖13上也设有通风孔D121、131，如此，外部空气也可以通过左端盖12进入壳体内部，再从右端盖13流到壳体外部，形成横向上的空气对流，进一步提高了散热效果，这种散热效果可以达到散热风扇同样甚至是更好的效果。More advantageously, the left end cover 12 and the right end cover 13 are also provided with ventilation holes D121, 131, so that outside air can also enter the inside of the housing through the left end cover 12, and then flow from the right end cover 13 to the outside of the housing to form a lateral direction. The air convection on the air further enhances the heat dissipation effect, and the heat dissipation effect can achieve the same or even better effect of the cooling fan.

作为优选的，通风孔A101、通风孔B112、通风孔C202、212、221及通风孔D121、131为条形孔、圆形孔、方形孔及多边形孔中的任一种。更为优选地，通风孔A101及通风孔B112为条形孔，该条形孔为多个，多个条形孔并排设置于所述上壳体10及下壳体11的表面，通风孔C202、212、221及通 风孔D121、131为圆形孔、方形孔或多边形孔，通风孔C202、212、221为多个，多个圆形孔、方形孔或多边形孔均匀分布于第一散热盖板20、第二散热盖板21及第三散热盖板22的表面。通风孔D121、131为多个，多个通风孔D121、131均匀分布于左端盖12及右端盖13，如此设置，对流散热效果更好。Preferably, the vent hole A101, the vent hole B112, the vent holes C202, 212, 221 and the vent holes D121, 131 are any one of a strip hole, a circular hole, a square hole and a polygonal hole. More preferably, the vent hole A101 and the vent hole B112 are strip-shaped holes, and the strip-shaped holes are plural, and a plurality of strip-shaped holes are arranged side by side on the surfaces of the upper case 10 and the lower case 11, and the vent hole C202 , 212, 221 and pass The air holes D121 and 131 are circular holes, square holes or polygonal holes, and the plurality of circular holes, square holes or polygonal holes are evenly distributed on the first heat dissipation cover 20 and the second. The surfaces of the heat dissipation cover 21 and the third heat dissipation cover 22. There are a plurality of ventilation holes D121 and 131, and a plurality of ventilation holes D121 and 131 are evenly distributed on the left end cover 12 and the right end cover 13, so that the convection heat dissipation effect is better.

此外，上壳体10与下壳体11外表面还设有散热筋102、113，以增加散热效果。In addition, the outer surfaces of the upper casing 10 and the lower casing 11 are further provided with heat dissipation ribs 102, 113 to increase the heat dissipation effect.

综上，本发明提供的长寿命低功耗零噪音光伏逆变器，采用铝型材质的散热盖板作为散热器，具有使用寿命长、功耗低、无噪音、成本低等优点。以上所述仅为本发明的优选实施例，并非因此限制其专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 In summary, the long-life, low-power, zero-noise photovoltaic inverter provided by the present invention uses an aluminum-type heat-dissipating cover as a heat sink, and has the advantages of long service life, low power consumption, no noise, and low cost. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patents. The equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims (10)

一种长寿命低功耗零噪音光伏逆变器，其特征在于：包括A long-life, low-power, zero-noise photovoltaic inverter characterized by: 壳体，所述壳体上设有第一通风结构；a housing having a first ventilation structure thereon; 线路板，所述线路板设置于所述壳体内部；a circuit board, the circuit board being disposed inside the housing; 散热盖板，其为铝型材质，所述散热盖板固定安装于所述壳体内部，且设在所述线路板的上方；所述散热盖板上设有与所述第一通风结构相对的第二通风结构以使空气能够在所述第一通风结构与第二通风结构之间对流。a heat dissipating cover plate, which is fixed in the interior of the casing and disposed above the circuit board; The second ventilation structure is configured to enable air to convect between the first ventilation structure and the second ventilation structure. 根据权利要求1所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述线路板上具有一变压器线圈，所述散热盖板包括并排设置第一散热盖板及第二散热盖板，所述第一散热盖板上靠近所述第二散热盖板的一端设有第一缺口，所述第二散热板上与所述第一缺口相对的一端设有第二缺口，所述第一缺口与第二缺口围成一与所述变压器线圈相适配的收纳槽，所述变压器线圈收容于所述收纳槽内。The long-life low-power zero-noise photovoltaic inverter according to claim 1, wherein the circuit board has a transformer coil, and the heat dissipation cover comprises a first heat dissipation cover and a second heat dissipation side by side. a first notch is disposed on an end of the first heat dissipation cover adjacent to the second heat dissipation cover, and a second notch is disposed on an end of the second heat dissipation plate opposite to the first notch. The first notch and the second notch enclose a receiving groove adapted to the transformer coil, and the transformer coil is received in the receiving groove. 根据权利要求2所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述线路板上具有发热源，所述散热盖板还包括第三散热盖板，所述第三散热盖板对应设在所述发热源的上方。The long-life low-power zero-noise photovoltaic inverter according to claim 2, wherein the circuit board has a heat source, the heat dissipation cover further includes a third heat dissipation cover, and the third heat dissipation The cover plate is correspondingly disposed above the heat source. 根据权利要求1所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述壳体包括A long life low power zero noise photovoltaic inverter according to claim 1 wherein said housing comprises 上壳体；Upper housing 下壳体，与所述上壳体可拆卸式连接；a lower housing detachably connected to the upper housing; 及左端盖和右端盖，所述左端盖盖合于所述上壳体、下壳体的左端，所述右端盖盖合于所述上壳体、下壳体的右端。And a left end cover and a right end cover, the left end cover is closed to the left end of the upper case and the lower case, and the right end cover is closed to the right end of the upper case and the lower case. 根据权利要求4所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述左端盖及右端盖为板状结构，所述上壳体及下壳体呈“U”型结构，所述上壳体及下壳体两端的内侧壁对应设有滑槽内，所述左端盖的边缘对应卡设于所述上壳体和下壳体左端的滑槽内，所述右端盖的边缘对应卡设于所述上壳体和下壳体右端的滑槽内。The long-life low-power zero-noise photovoltaic inverter according to claim 4, wherein the left end cover and the right end cover have a plate-like structure, and the upper and lower casings have a U-shaped structure. The inner side walls of the upper end of the upper and lower housings are correspondingly disposed in the sliding slot, and the edge of the left end cover is correspondingly disposed in the sliding slot of the left end of the upper housing and the lower housing, the right end cover The edge is correspondingly disposed in the sliding groove of the upper end of the upper casing and the lower casing. 根据权利要求4所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述第一通风结构包括设置于所述上壳体表面的通风孔A及设置在所述下壳体下表面的通风孔B。The long-life low-power zero-noise photovoltaic inverter according to claim 4, wherein the first ventilation structure comprises a vent hole A disposed on a surface of the upper casing and a lower casing disposed at the lower casing Ventilation hole B on the lower surface. 根据权利要求6所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述第二通风结构为设置在所述散热盖板上的通风孔C。The long-life low-power zero-noise photovoltaic inverter according to claim 6, wherein the second ventilation structure is a ventilation hole C disposed on the heat dissipation cover. 根据权利要求7所述的长寿命低功耗零噪音光伏逆变器，其特征在于： 所述左端盖及右端盖上设有通风孔D。The long life low power zero noise photovoltaic inverter of claim 7 wherein: The left end cover and the right end cover are provided with ventilation holes D. 根据权利要求8所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述通风孔A、通风孔B、通风孔C及通风孔D为条形孔、圆形孔、方形孔及多边形孔中的任一种。The long-life low-power zero-noise photovoltaic inverter according to claim 8, wherein the vent hole A, the vent hole B, the vent hole C and the vent hole D are strip holes, circular holes, and square holes. Any of a hole and a polygonal hole. 根据权利要求9所述的长寿命低功耗零噪音光伏逆变器，其特征在于：所述通风孔A及通风孔B为条形孔，所述通风孔C及通风孔D为圆形孔、方形孔或多边形孔。 The long-life low-power zero-noise photovoltaic inverter according to claim 9, wherein the venting hole A and the venting hole B are strip-shaped holes, and the venting holes C and the venting holes D are circular holes. , square or polygonal holes.
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