Title:
AIR-CONDITIONING DEVICE AND NOISE REDUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/216578
Kind Code:
A1
Abstract:
The air-conditioning device (1) is provided with a flow passage (10) for air to flow down therethrough, at least one outlet (12-16), a fan (20), a low frequency reduction unit (30), and a high frequency reduction unit (40). Said at least one outlet provides communication between the flow passage and a space (2) to be air-conditioned. The fan is disposed in the flow passage and causes air to flow down toward each of said at least one outlet. The low frequency reduction unit outputs low-frequency-controlling sound from a low-frequency speaker disposed in the vicinity of the fan. The high frequency reduction unit outputs high-frequency-controlling sound from a high-frequency speaker disposed downstream of the fan.
Inventors:
NAGATOMI YASUTSUGU (JP)
OTSUKA MANABU (JP)
ITO KOJI (JP)
OTSUKA MANABU (JP)
ITO KOJI (JP)
Application Number:
PCT/JP2018/018993
Publication Date:
November 29, 2018
Filing Date:
May 16, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60H1/00; F24F13/24
Foreign References:
| JP2003186479A | 2003-07-04 | |||
| JP2003177760A | 2003-06-27 | |||
| JPH0511783A | 1993-01-22 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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