Vacuum pump control device and vacuum pump
US10215191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Aug 26, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/0292
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An object of the present invention is to improve, using a simple configuration, heat dissipation of a regenerative resistor that is disposed in a vacuum pump control device (controller) connected to a vacuum pump. The regenerative resistor disposed in the vacuum pump control device is stored in an aluminum die-cast casing. More concretely, a housing of the vacuum pump control device is prepared by aluminum die casting (metal mold casting). A regenerative resistor storing portion (aluminum die-cast casing) provided with a hollow portion is provided on a top panel of the aluminum die cast, the hollow portion being designed to have a size accommodating the entire regenerative resistor. The regenerative resistor is fitted into the hollow portion, and an opening section of the hollow portion is sealed with an aluminum sheet of the same material as that of the casing. In this manner, the regenerative resistor can removably be stored in the aluminum die-cast casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.