Title:
HEAT EXCHANGE TYPE VENTILATION FAN
Document Type and Number:
WIPO Patent Application WO/2020/045002
Kind Code:
A1
Abstract:
A heat exchange type ventilation fan (1) is provided with: a housing (30) having an outdoor suction opening (3), an indoor air supply opening (4), an indoor suction opening (5), and an outdoor air discharge opening (6); a heat exchange element (2); a supply air flow passage; an air supply fan (7); a discharge air flow passage; an air discharge fan (8); an outdoor air supply shutter (9); an outdoor air discharge shutter (10); a circulation damper (14) for opening and closing a circulation opening (13); an indoor particle sensor (16); and a particle removal filter (15). When the value of concentration of particles is greater than a predetermined value, the circulation damper (14) opens the circulation opening (13) to form a circulation air flow passage (E) which connects the indoor suction opening (5) and the indoor air supply opening (4). The heat exchange type ventilation fan (1) performs a mixed air flow operation in which the supply of air from the exterior to the interior of a room through the supply air flow passage, and air circulation from the interior to the interior of the room through the circulation air flow passage (E) are performed simultaneously.
Inventors:
SHUJI KENTA
HASHINO DAISUKE
FUJIMOTO SATORU
MASAMURA NAOTO
SUGIYAMA MARIKO
HASHINO DAISUKE
FUJIMOTO SATORU
MASAMURA NAOTO
SUGIYAMA MARIKO
Application Number:
PCT/JP2019/031157
Publication Date:
March 05, 2020
Filing Date:
August 07, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F24F7/08; F24F7/007; F24F11/77; F24F110/64
Foreign References:
| JP2007170712A | 2007-07-05 | |||
| JP2014066400A | 2014-04-17 | |||
| JPS62194133A | 1987-08-26 | |||
| JPH03286942A | 1991-12-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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