一种变频器散热装置
By installing a filter device driven by a winding shaft at the air inlet of the frequency converter, the heat dissipation and dust prevention problems caused by the grid structure are solved, achieving better heat dissipation and dust prevention effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG EACN ELECTRONICS SCI & TECH
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
The grid structure of existing frequency converters blocks the air inlet when open, affecting heat dissipation, and the gaps are difficult to close completely when closed, resulting in poor heat dissipation and dust prevention.
The filter device, driven by a retractor, rolls up the filter to fully open the air inlet when the frequency converter is working, and rolls up the filter to close the air inlet when not working. It uses the fine mesh of the filter to improve the dust prevention effect and ensure good heat dissipation during operation.
The inverter's heat dissipation and dust prevention performance have been improved. The filter does not block the air inlet when the inverter is in operation and is effectively sealed when it is not in operation, thus avoiding insufficient heat dissipation and dust prevention caused by gaps.
Smart Images
Figure CN224521422U_ABST
Abstract
Claims
1. A frequency converter heat dissipation device, comprising a housing (6) for mounting the frequency converter body, wherein an air outlet is provided on the upper rear side of the housing (6), and an exhaust fan is provided at the air outlet; air inlets are symmetrically opened on the housing (6), characterized in that, A filter device is installed at the air inlet. The filter device includes a filter (2) for sealing the air inlet and a winding shaft (3) connected to the filter (2). The winding shaft (3) is driven to rotate by a drive assembly. The filter device has a heat dissipation state and a closed state. When the filter device is in the heat dissipation state, the drive component drives the winding shaft (3) to rotate in the forward direction and roll up the filter (2) so that the air inlet is completely open. When the filter device is switched to the closed state, the drive component drives the winding shaft (3) to rotate in the reverse direction and release the filter (2) so that the filter (2) closes the air inlet.
2. The heat sink for a frequency converter of claim 1, wherein A rectangular frame (1) is installed at the air inlet. The rectangular frame (1) includes a top rod with a roll receiving groove (13) on the top rod. The roll receiving shaft (3) is located in the roll receiving groove (13), and the upper end of the filter screen (2) is connected to the roll receiving shaft (3).
3. The heat sink for a frequency converter of claim 1, wherein The rectangular frame (1) includes two side rods, and the side rods are provided with longitudinal guide grooves (11) extending in the vertical direction. The lower end of the filter screen (2) is connected to a horizontal slide rod (21), and the left and right ends of the horizontal slide rod (21) are slidably installed in the corresponding longitudinal guide grooves (11).
4. The inverter heat dissipation device as described in claim 1, characterized in that, An elastic element is connected between the rectangular frame (1) and the filter screen (2). When the filter screen device is in the heat dissipation state, the elastic element is pulled by the filter screen (2) and is in the tension state. When the filter screen device is switched to the closed state, the elastic element resets and pulls the filter screen (2) to close the air inlet again.
5. A heat sink for a frequency converter as claimed in claim 4, characterised in that The bottom of the filter screen (2) is connected to a horizontal slide bar (21). The rectangular frame (1) includes a bottom bar connected between two side bars. The two ends of the elastic element are connected to the bottom bar and the horizontal slide bar (21) respectively.
6. A heat sink for a frequency converter as claimed in claim 5, characterised in that The elastic element is one or more elastic ropes (4) connected between the horizontal slide bar (21) and the bottom bar.
7. A heat sink for a frequency converter as claimed in claim 6, c h a r a c t e r i s e d i n that A fixed pulley (41) is connected to the bottom rod. One end of the elastic rope (4) is connected to the horizontal crossbar (21), and the other end of the elastic rope (4) goes around the outside of the fixed pulley (41) and is fixedly connected to the bottom rod.
8. A heat sink for a frequency converter as claimed in claim 6, characterised in that The rectangular frame (1) includes two side rods, and the side rods are provided with longitudinal guide grooves (11) extending in the vertical direction. The left and right ends of the horizontal slide rod (21) are slidably installed in the corresponding longitudinal guide grooves (11). A vertical groove (12) is opened on the inner wall of the longitudinal guide groove (11). A fixed pulley (41) is installed in the vertical groove (12). One end of the elastic rope (4) is connected to the horizontal crossbar (21), and the other end of the elastic rope (4) passes around the outside of the fixed pulley (41) and is fixed in the vertical groove (12).
9. The heat sink for a frequency converter of claim 1, wherein, The driving component is a micro servo motor (5), and the output end of the micro servo motor (5) is coaxially fixedly connected to the winding shaft (3).
10. A heat sink for a frequency converter as claimed in claim 9, characterised in that A rectangular frame (1) is installed at the air inlet. The rectangular frame (1) includes a top rod with a roll receiving groove (13) on the top rod. The roll receiving shaft (3) is located in the roll receiving groove (13). A micro servo motor (5) is embedded in the inner wall of the roll receiving groove (13) facing either end of the roll receiving shaft (3).