Voice coil (VC) temperature prediction is extremely important to make choices on the magnetic circuit during the pre-design and design phases. The aim of this study is to develop a model able to provide a quick response on the steady-state VC temperature. A lumped parameter thermal model describing the relevant heat transfer phenomena occurring in a working loudspeaker was developed. It was validated against measurements of VC, polar plate and magnet temperatures reached after 2 hours of sinusoidal or pink noise excitation. Differences between predicted and measured temperatures were not significant. By providing a fast and relatively accurate response, this model can be used for VC temperature prediction in the (pre-)design phase.
Authors:
Villa, Luca; Corsini, Chiara; Spatafora, Grazia; Capucci, Emiliano; Mele, Davide; Toppi, Romolo
Affiliation:
Faital S.p.A.,San Donato Milanese, Milan, Italy
AES Convention:
150 (May 2021)
Paper Number:
10458
Publication Date:
May 24, 2021
Subject:
ELAC/Audio Tech
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.