frequency converter
By setting up heat dissipation ducts inside the inverter chassis and thermally connecting the heat dissipation devices with the power components, and placing the reactor in an independent duct, the problem of poor heat dissipation after inverter integration is solved, and the improvement of independent heat dissipation and overall heat dissipation effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN YINGWEITENG ELECTRIC TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing frequency converters have poor heat dissipation after integrating reactors, which affects their working efficiency and service life.
A heat dissipation duct is installed inside the inverter's chassis, and the heat dissipation device is thermally connected to the power component. The reactor is installed in an independent duct. The heat dissipation duct is divided into a first duct and a second duct by a duct partition, and heat dissipation is carried out separately.
This achieves independent heat dissipation for the internal components of the frequency converter, improves the overall heat dissipation effect, avoids mutual heat interference, and enhances the heat dissipation performance of the integrated frequency converter.
Smart Images
Figure CN224520914U_ABST
Abstract
Claims
1. A frequency converter, characterized in that The device includes a chassis and power components, heat dissipation devices, and reactors located within the chassis. The chassis has a heat dissipation duct, and the chassis is also provided with an air intake structure and an air exhaust structure. A duct partition is provided within the heat dissipation duct to divide the heat dissipation duct into a first duct and a second duct. The heat dissipation device is located in the first duct and is thermally connected to the power components. The reactor is located in the second duct.
2. The frequency converter of claim 1, wherein, The air duct partition has a first end and a second end. The first end is disposed toward the air intake structure, and the second end is disposed toward the air outlet structure. Both the first end and the second end are spaced apart from the side wall of the chassis.
3. The frequency converter of claim 2, wherein, A flow guiding structure is also provided at the first end of the air duct partition, and the flow guiding structure is used to guide the air in the heat dissipation air duct so that the flow rate of the air entering the first air duct is greater than the flow rate of the air entering the second air duct.
4. The frequency converter of claim 3, wherein, The flow guiding structure includes a flow guiding slope located at the first end, the flow guiding slope being inclined away from the heat dissipation device.
5. The frequency converter of claim 4, wherein, A first bend is provided at the first end, and the flow guiding slope is located on the side of the first bend facing the heat dissipation device.
6. The frequency converter of claim 2, wherein, Along the airflow direction, the reactor has a first part and a second part arranged sequentially, and the heat dissipation device is arranged opposite to the second part, and the air duct baffle is located between the second part of the reactor and the heat dissipation device.
7. The frequency converter of any one of claims 1 to 6, wherein, The chassis includes a first housing portion and a second housing portion, both of which have openings. The openings of the first housing portion and the second housing portion are interlocked to form the chassis.
8. The frequency converter of claim 7, wherein, The power component is disposed inside the first housing portion, the heat dissipation device is connected to the power component and extends at least partially through the opening of the first housing portion to the outside of the first housing portion, the air duct baffle is located inside the second housing portion, and along the depth direction of the second housing portion, the air duct baffle divides the interior of the second housing portion into a first region and a second region, the reactor is installed in the first region, and when the first housing portion and the second housing portion are fastened together, the heat dissipation device extends into the second region.
9. The frequency converter as described in claim 8, characterized in that, The air outlet structure and the air inlet structure are located at opposite ends of the second housing portion, and the air outlet structure includes a mounting opening and a fan mounted at the mounting opening, and the air inlet structure includes a plurality of air inlet holes spaced apart from each other.
10. The frequency converter of claim 7, wherein, The first housing portion has a first flange edge at its opening, and the second housing portion has a second flange edge at its opening for abutting against the first flange edge. The first flange edge and the second flange edge are connected by fasteners.