Title:
LOW AND MEDIUM VOLTAGE ELECTRICAL ENCLOSURE
Document Type and Number:
Japanese Patent JP2021069274
Kind Code:
A
Abstract:
To perform a function to maintain a constant temperature state against temperature variations inside an electrical enclosure, with a simple structure without using an electrical system.SOLUTION: A low and medium voltage electrical enclosure 1 includes a supporting structure which defines an internal space delimited by walls 13 forming one or more compartments housing one or more electrical apparatuses. At least one of the walls is provided with one or more venting openings that put into communication of an internal space with an outside of the electrical enclosure 1 and/or one of the compartments with a second compartment. The venting openings are provided with a cover 21 closing a corresponding venting opening in a first-closed-operating condition at first predetermined temperatures. The enclosure is provided with an actuating device adapted to open the cover in a second-open-operating condition at second predetermined temperatures. The actuating device includes an actuating mechanism having a Shape Memory Alloy-based (SMA-based) actuating element that has a first dimension at the first predetermined temperatures and is reversibly changeable into a second dimension at the second predetermined temperatures.SELECTED DRAWING: Figure 1
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Inventors:
PIERCELESTE BENEDETTI
ALESSIO BERGAMINI
GIUSEPPE NAVA
DAMIANO CAGLIANI
ALESSIO BERGAMINI
GIUSEPPE NAVA
DAMIANO CAGLIANI
Application Number:
JP2020176084A
Publication Date:
April 30, 2021
Filing Date:
October 20, 2020
Export Citation:
Assignee:
ABB SPA
International Classes:
H02B1/56; H05K5/03; H05K7/18; H05K7/20
Attorney, Agent or Firm:
Shintaro Nogawa
Shinji Kai
Yusuke Kaneko
Kiyoshi Inamoto
Masami Tomita
Shinji Kai
Yusuke Kaneko
Kiyoshi Inamoto
Masami Tomita