CN-224218703-U - Air-cooled inverter

CN224218703UCN 224218703 UCN224218703 UCN 224218703UCN-224218703-U

Abstract

The utility model relates to the technical field of inverters, in particular to an air-cooled inverter. The air-cooled inverter comprises a shell, radiating fins, a power module, a filter, a power panel, a capacitor assembly and a drive control panel. The power panel both sides are connected respectively the wave filter with power module, the power panel both sides respectively with the wave filter with power module's junction is provided with the plastic insulation seat, in order to support the power panel with the wave filter with power module's junction avoids the junction unsettled, the phenomenon that junction is not hard up when preventing vibrations. The heat dissipation fins are vertically arranged and arranged on the end face of the shell away from the power module at intervals, the heat dissipation fins are correspondingly arranged at the positions of the power module, the air cooling structure is simpler, liquid circulation is not needed in air cooling, short circuits or equipment damage caused by leakage is avoided, and components such as a sealing device and a water channel are not needed, so that the cost is reduced.

Inventors

RUAN PENGFEI
LING HUAN
WU RUI
MO YUANYUAN

Assignees

浙江翠展微电子有限公司

Dates

Publication Date: 20260508
Application Date: 20250508

Claims (6)

1. The air-cooled inverter is characterized by comprising a shell, a plurality of radiating fins arranged on the shell, a power module arranged on the shell, a filter arranged on the shell, a power panel arranged on the shell, a capacitor component arranged on the power panel, and a driving control panel arranged on the shell, wherein the shell is provided with a mounting surface for arranging the power module, the radiating fins are vertically arranged on the end surface of the shell far away from the power module at intervals, the radiating fins are arranged corresponding to the power module in position, the power module is arranged on a radiating substrate, the radiating substrate is fixed on the mounting surface through fixing, heat conducting silica gel is arranged between the radiating substrate and the mounting surface, the two sides of the power panel are respectively connected with the filter and the power module, the joint of the two sides of the power panel and the filter and the power module is provided with a plastic insulating seat, and the plastic insulating seat is arranged on the shell and is positioned between the power panel and the power module.
2. The air-cooled inverter of claim 1, wherein a plurality of mounting posts are provided on the housing, the mounting posts being for providing the power panel and the drive control panel.
3. The air-cooled inverter of claim 1, wherein the capacitor assembly comprises a plurality of film capacitors disposed on the power panel, a plurality of X capacitors disposed on the power panel, and a plurality of Y capacitors disposed on the power panel, the film capacitors, the X capacitors, and the Y capacitors being disposed at intervals between the film capacitors, the X capacitors, and the Y capacitors being disposed on an end surface of the power panel remote from the housing.
4. The air-cooled inverter of claim 1, wherein the power module has a plurality of input terminals, output terminals, chips, heat dissipating studs, and signal pins, the signal pins being plugged into the drive control board.
5. The air-cooled inverter of claim 1, wherein the drive control board is integrally provided with a drive circuit and a control circuit.
6. The air-cooled inverter of claim 1, wherein a plurality of maintenance holes are formed in the drive control board, and the positions of the maintenance holes correspond to the positions of the connection points of the power module and the shell and the connection points of the power module and the power panel.

Description

Air-cooled inverter Technical Field The utility model relates to the technical field of inverters, in particular to an air-cooled inverter. Background Along with the rapid development of power electronics technology, high-power-density and high-efficiency semiconductor power modules are increasingly widely applied to the fields of new energy power generation, electric automobiles, industrial frequency converters and the like. However, the power module generates a large amount of heat during the working process, and if the heat dissipation capability is insufficient, the junction temperature of the device is increased, the performance is degraded and even permanently damaged. Therefore, the heat dissipation technology is a core link for guaranteeing the reliability of the power module and prolonging the service life. At present, the heat dissipation mode of the power module is mainly a liquid cooling mode, and efficient heat dissipation is realized through liquid circulation, but the system is complex, the cost is high, and the problems of leakage of cooling liquid, pipeline corrosion, difficult maintenance and the like exist. In addition, the electrical connection between the internal devices of the inverter usually adopts a rigid fixed structure, such as direct welding or bolting, and the electrical connection ends between the different devices are fixed by welding or bolting to realize electrical conduction and mechanical fixation, but displacement is sometimes caused by vibration or impact of the inverter, so that the connection is affected. Disclosure of utility model In view of the above, the present utility model provides an air-cooled inverter to solve the above-mentioned technical problems. An air-cooled inverter comprises a shell, a plurality of radiating fins arranged on the shell, a power module arranged on the shell, a filter arranged on the shell, a power panel arranged on the shell, a capacitor assembly arranged on the power panel and a drive control panel arranged on the shell. The power module comprises a shell, and is characterized in that a mounting surface for setting the power module is arranged on the shell, a plurality of radiating fins are vertically arranged and are arranged on the end face of the shell far away from the power module at intervals, the radiating fins are arranged corresponding to the power module in position, the power module is arranged on a radiating substrate, the radiating substrate is fixed on the mounting surface through fixing, and heat conducting silica gel is arranged between the radiating substrate and the mounting surface. The power panel is characterized in that the two sides of the power panel are respectively connected with the filter and the power module, a plastic insulating seat is arranged at the joint of the two sides of the power panel with the filter and the power module, and the plastic insulating seat is arranged on the shell and between the power panel and the shell so as to support the joint of the power panel with the filter and the power module. Further, a plurality of mounting posts are provided on the housing, the mounting posts being for providing the power panel and the drive control panel. Further, the capacitor assembly comprises a plurality of thin film capacitors arranged on the power panel, a plurality of X capacitors arranged on the power panel, and a plurality of Y capacitors arranged on the power panel, wherein the thin film capacitors are arranged at intervals, and the thin film capacitors, the X capacitors and the Y capacitors are arranged on the end face of the power panel far away from the shell. Further, the power module has a plurality of input terminals, output terminals, a chip, a heat dissipation post, and signal pins inserted on the drive control board. Further, the drive control board is integrally provided with a drive circuit and a control circuit. Further, a plurality of maintenance holes are formed in the driving control board, and the positions of the maintenance holes correspond to the connection points of the power module and the shell and the connection points of the power module and the power panel. Compared with the prior art, the plurality of radiating fins of the air-cooled inverter are vertically arranged and are arranged on the end face, far away from the power module, of the shell at intervals, and heat of the power module is conducted to the fins. When air flows between the adjacent radiating fins, the air performs convection heat exchange with the radiating fins, so that the radiating effect is achieved. The adoption forced air cooling is simpler than water-cooling structure, and forced air cooling need not liquid circulation, avoids short circuit or equipment damage because of leaking and leads to, also need not set up components such as sealing device and water course, reduce cost. The power panel is characterized in that plastic insulation seats are arranged at the joints of the two sides of the pow