Terminal mechanism, permanent magnet adjustable-speed motor and centrifugal refrigeration compressor
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United States of America Patent
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Nov 28, 2017
Grant Date -
May 26, 2016
app pub date -
Jan 31, 2016
filing date -
Jul 31, 2013
priority date (Note) -
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Abstract
Disclosed are a terminal mechanism, a permanent magnet adjustable-speed motor and a centrifugal refrigeration compressor. The terminal mechanism comprises a terminal board, power supply connectors and sealing rings; the terminal board is made of steel, and the magnetic permeability μ of the steel is less than or equal to 1.31×10−6 H/m. The terminal board is a flat board having an upper surface and a lower surface, and is provided with terminal holes thereon. The sealing rings are sleeved on the power supply connectors. The power supply connectors are fixed on the terminal board through the terminal holes. The sealing rings are in sealing engagement with the terminal board, so as to reduce heat generated by an electric eddy current.
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