Inverter cooling structure of portable generator set
A technology for generating sets and cooling structures, applied in cooling/ventilation/heating retrofits, electrical components, output power conversion devices, etc., can solve problems such as increased production and transportation costs, increased size and weight, and portability. Achieve the effect of improving heat dissipation effect, compact structure design and increasing design freedom
Active Publication Date: 2015-04-29
苏州威宝链智能科技有限公司
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Problems solved by technology
However, there are many problems in this inverter cooling structure. Since the inverter must be installed close to the air inlet of the casing, enough space must be reserved for the inverter at the air inlet of the casing. When the space near the air inlet is insufficient, it will cause great difficulties in the structural design of the generator set, which usually has to be solved by increasing the overall size of the generator set. The increase in the size and weight of the generator set will lead to higher production and transportation costs , its portability will also be affected to some extent
In addition, because the cooling air from the air inlet of the chassis will leave the inverter and spread out after blowing through the heat sink on the back of the inverter, the chances of cooling the heat-generating components such as inductors on the front of the inverter are very high. Small, so the heat dissipation effect of this cooling structure is not ideal
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[0044] 1 , embodiment one:
[0045] Such as Figure 1 to Figure 12 Shown, the generator set of this patent is mainly made up of engine 6, generator 7, casing 3, inverter 1, oil tank 8, roller device 11, pull rod device 4 and electrical panel 10 etc.
[0046] Such as image 3 As shown, the multi-stage permanent magnet generator 7 of the present embodiment is arranged at the rear of the engine 6 and is connected to the output end of the rear of the engine crankshaft, which belongs to the rear-mounted generator. Of course, the front-mounted generator can also be used as required. An inverter 1 is arranged at the front of the engine, and the inverter 1 is used to convert the intermediate frequency alternating current output by the multistage permanent magnet generator 7 into a power frequency alternating current with stable voltage.
[0047] Such as Figure 1 to Figure 7As shown, the engine 6, the generator 7 and the inverter 1 are accommodated in the casing 3, the casing 3 ...
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The invention provides an inverter cooling structure of a portable generator set. The portable generator set is mainly composed of an engine, a generator, a shell and an inverter. The engine, the generator and the inverter are arranged in the shell. The shell is provided with an air inlet communicated with the outside atmosphere. An inverter cover is arranged between the inverter and the air inlet of the shell and used for heat dissipation and ventilation. The inverter cover comprises at least one air inlet and at least one air outlet. A cooling air channel is formed between the air outlets and the air outlets. The inverter cover is communicated with the air inlet of the shell through the air inlets in a butt joint mode. The cooling air channel leads in outside air through the air inlet of the shell to cool the inverter. By means of the inverter cooling structure, the inverter can be arranged at any position in the shell, the design freedom is greatly improved, the structure of the generator set is more compact and reasonable, and the heat dissipation effect of the inverter is also greatly improved.
Description
technical field [0001] The invention relates to the technical field of portable generator sets, in particular to a fully enclosed inverter cooling structure for portable generator sets. Background technique [0002] The generator set is mainly composed of an engine, a generator and an electronic control system. It can convert the chemical energy of fuel into electrical energy. Backup power supply, mobile communication base station and many other occasions. [0003] Compared with the traditional power frequency synchronous generator set, the inverter generator set using multi-pole permanent magnet generator has the advantages of high efficiency, light weight, and high quality output voltage waveform, which represents the development direction of small generator sets. The core electrical component in the inverter generator set is the inverter (also known as the frequency converter). The inverter uses the frequency conversion technology of the switching power supply to convert...
Claims
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IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20H02M1/0003
Inventor 朱正华
Owner 苏州威宝链智能科技有限公司