精品国产一区二区亚洲人成毛片_日韩视频在线观看免费_成年人一级黄色片_久久国产精品免费_国产一区二区三区精品视频_亚洲另类色综合网站_黄色美女网站在线观看

Chinese

Advisory hotline: 4008-557-528

hot key words： Dongguan skived fin heat sink vendor Shenzhen skived fin heat sink vendor Dongguan PV inverter heat sink PV inverter heat sink vendor Jiangsu skived fin heat sink vendor Custom SVG heat pipe thermal module

Inverters are also called power regulators. The process of converting DC power into AC power is called invert. The circuit that can realize the inverting function is called an inverter circuit. A device that can realize the inverting process is called an inverting device or inverter. In a solar energy generation system, the inverter efficiency is an important factor that determines the solar cell capacity and the storage battery capacity. The breakdown of PV inverter will cause the PV system to shut down and this directly leads to the loss of power generation. Therefore, high reliability is an important technical indicator for PV inverters.
The good cooling of PV inverters is an important criterion to ensure the high reliability of its operation. Therefore, it is recommended to carry out thermal simulation in the beginning of PV inverter's design stage and this has become the first issue to be considered by PV inverter manufacturers. As one of the professional high power cooling manufacturers in China, Winshare Thermal has an outstanding thermal design and development team, which owns the capability of carrying out reliable thermal simulation and testing. We have collaborated with several domestic and overseas PV inverter manufacturers on the cooling technology for inverters and have been supplying services and supports with our professional cooling technology.
Schematic of the simulation model and parameters (1):
Ambient temperature: 55?C; reactor heat load: 700W
 
Assuming a system impedance of 80 Pa, the fan curve through the heat sink can be adjusted as follows.
Schematic of the simulation model and parameters (2):




The top left figure is the schematic of the internal structure and heat-dissipating devices of the Infineon IGBT
Diode：59W； IGBT：124.5W； Total：1100WW；
Assuming the thermal interface material is 0.15mm thick with a thermal conductivity of K=3W/m*K
 
Schematic of the simulation model of the heat sink solution and its parameters:
Heat sink parameters:
Dimensions: W236*L200*H304mm
Fin :
Thickness: 0.6mm
Fin gap: 3.0mm
Fin count: 77fins
Heat pipe parameters:
DD8 sintered tube or groove structure;
24 pcs of U-shaped heat pipes (single-layer layout) and 48 pcs of L-shaped heat pipes (dual-layer layout) are used
4258 low-temperature solder paste is used for soldering;
Base: Al plate + copper plate (IGBT heat source area)
The design with a single layer of heat pipes has a lower cost and higher cooling performance as compared to dual layers of heat pipes.
 
Schematic of the simulated cross-sectional pressure distribution in the thermal module:
Schematic of the simulated cross-sectional velocity distribution in the thermal module:
 
Schematic of the simulated cross-sectional temperature distribution in the thermal module:
Schematic of the simulated temperature distribution on the top layer of heat pipes:

(The temperature difference between both ends of the heat pipe is 5.7℃, which meets the practical criteria for heat pipes.)

 
Schematic of the simulated temperature distribution on the bottom layer of heat pipes:

(The temperature difference between both ends of the heat pipe is 9℃, which is slightly higher than the real scenario. The actual performance of the heat pipes will be better than those configured in this analysis.)

Schematic of the simulated temperature distribution on the bottom side of the heat sink:
 

(The actual air temperature entering the heat sink is ~57.1?C and the maximum temperature at the heat sink bottom is 85.1?C with a temperature difference of 28?C according to the theoretical analysis.)

 
Schematic of the simulated temperature distribution on the NTC module:
Schematic of the fan operating point:
 

(The temperature difference between both ends of the heat pipe is 9℃, which is slightly higher than the real scenario. The actual performance of the heat pipes will be better than those configured in this analysis.)

Summary of the simulation data of the cooling solution for the PV inverter:

Solution

Ta

Power

H.S
Tb max

H.S
DT

NTC1

NTC2

NTC3

Fan
working point

Al base+
copper block

55

IGBT/3pcs
1100W/each
Reactor
700W

85.1

28

87.6

88.1

87.5

1127.5
m^3/Hr
215Pa

Assuming a system air inlet temperature of 55?C, the temperature of the air leaving the reactor is 57.1?C. Assuming a thermal interface material of 0.15mm thick with a thermal conductivity of K=3W/m*K is used.)

The voice of Winshare Thermal: credit and word

Winshare Thermal Ltd. (hereinafter referred to as Winshare Thermal) was founded in 2009. We specialize in the research and development, production and technical services of high power cooling solutions. We are devoted to becoming the leader in the thermal... [See details]

Copyright: Dongguan Winshare Thermal Ltd.

主站蜘蛛池模板： 国产成人免费a在线资源 | 国产成人av在线 | 国产高清一级毛片 | 免费视频91 | 久碰人澡人澡人澡人澡91 | 久久99精品国产99久久 | 国内自产拍自a免费毛片 | 国产jizz中国jizz免费看 | 国产成人欧美一区二区三区的 | 俄罗斯aaaa一级毛片 | 果冻传媒福利比 | 免费亚洲视频在线观看 | 久久免费观看国产99精品 | 日韩一区二区免费视频 | 另类视频在线 | 黄色在线 | 日本免费黄色录像 | 日本黄色福利视频 | 久草免费精品视频 | 操人视频在线观看 | 青草免费免费观看视频在线 | 久草视频精品 | 日本a在线免费观看 | 秋霞特色大片18入口私人高清 | 99热这里只有精品国产99 | 精品欧美一区二区三区在线 | 久久午夜精品视频 | 亚洲看逼 | 久久这里有精品视频 | 99久久免费精品国产免费 | 免费鲁丝片一级观看 | a级v片 | 免费黄视频软件 | 秋霞手机入口二日韩区 | 中日韩在线视频 | jizz18日本人在线播放 | 国产一区二区三区在线视频 | 91精品国产91热久久p | 在线播放www | 美女视频网站黄色 | 天天干天操 |