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US 8,523,969 B2Granted
Indoor unit of air conditioner
AssigneeDaikin Industries, Ltd.
InventorsAkihiko Sakashita, Tsuyoshi Yokomizo, Morimichi Okada
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AssigneeDaikin Industries, Ltd.
InventorsAkihiko Sakashita, Tsuyoshi Yokomizo, Morimichi Okada
Estimating the term…
An air filter (30) intermittently rotates by a predetermined rotation angle at each time, while being in contact with a bristle portion (51b) of a rotating brush (51). Accordingly, dust on the air filter (30) is scraped by the bristle portion (51b). The brush member (51) rotates about an axial center of a shaft (51a) at each stop of the intermittent rotation of the air filter (30), to come into contact with a cleaning brush member (52). According, dust on the brush member (51) is removed by the cleaning brush member (52).
An indoor unit of an air conditioner in which an indoor heat exchanger, an indoor fan, and an air filter disposed on an inlet side of the indoor fan are provided in a casing, the indoor unit comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
About 2 years 5 months of term left · ends 5 Apr 2029 (estimated)
Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening: arrangement or mounting of filters
Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying:…
Air-conditioning
The present invention relates to an indoor unit of an air conditioner including a brush member configured to come into contact with an air filter to remove dust therefrom.
Among indoor units of air conditioners each having an air filter at an air inlet, those provided with a dust removing section for removing dust trapped on the air filter have been known.
In an indoor unit shown in PATENT DOCUMENT 1, for example, a rotating brush as a dust removing section is provided upstream of (i.e., below) an air filter. The air filter is in the shape of a disc. The rotating brush is made of a cylindrical shaft and a plurality of bristles provided on the entire outer circumferential surface of the shaft. In this indoor unit, both of the air filter and the rotating brush rotate with the bristles of the rotating brush in contact with the upstream surface (i.e., the lower surface) of the air filter, thereby causing dust to be scraped from the air filter by the bristles.
FIG. 1 is a vertical cross-sectional view illustrating a structure of an indoor unit according to an embodiment.
FIG. 2 is a lateral cross-sectional view illustrating the structure of the indoor unit of the embodiment when viewed from above.
FIG. 3 is a perspective view illustrating structures of a partition plate, an air filter, and a dust container according to the embodiment.
1 indoor unit 10 casing 21 indoor fan 22 indoor heat exchanger 30 air filter 40 filter drive section (drive section) 51 rotating brush (brush member) 51a shaft 51b bristle portion 52 cleaning brush (cleaning brush member) 52b bristle portion 53 brush drive section 60 dust container 80 dust transfer section
An embodiment of the present invention will be described in detail hereinafter with reference to the drawings.
An indoor unit (1) of this embodiment constitutes part of an air conditioner, and is placed on a ceiling of a room. The air conditioner includes a refrigerant circuit connecting a compressor, an outdoor heat exchanger, and an expansion valve provided in an outdoor unit, to an indoor heat exchanger (22) provided in the indoor unit (1), using pipes. The refrigerant circuit performs a vapor compression refrigeration cycle by reversibly circulating a refrigerant. The air conditioner performs cooling operation in which the indoor heat exchanger (22) in the refrigerant circuit functions as an evaporator, and heating operation in which the indoor heat exchanger (22) in the refrigerant circuit functions as a condenser.