Ceiling mounted ventilation fan with illumination

Patent metadata

Field	Value
Publication number	US-9841181-B2
Application number	US-201514589084-A
Country	US
Kind code	B2
Filing date	Jan 5, 2015
Priority date	Jan 6, 2011
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A ventilation fan with illumination includes a housing, a fan, and lighting equipment in the housing. The housing includes a first opening communicating with an air outlet, the first opening communicating with a duct, and a second opening that communicates with an interior space, The lighting equipment includes a light, a cover in the housing that surrounds the light periphery, the cover reflecting light and transmitting the light into the space through the second opening, and a restrictor that restricts passage of air between the light periphery and the lighting cover. An air intake gap is provided between a lower end of the cover and an edge of the second opening and introduced through the second opening and the air intake gap, is discharged through the first opening into the duct, the edge of the second opening being located below the lower end of the cover.

First claim

What is claimed is:

1. A ceiling mounted ventilation fan with illumination comprising a fan unit, a main housing, and lighting equipment installed in the main housing, wherein
the main housing includes a first opening in communication with the fan unit and a duct, and a second opening provided in a lower part of the main housing so as to communicate with an interior of a room,
the lighting equipment includes a lighting part, a lighting cover fixed to the main housing and provided in the main housing so as to surround a periphery of the lighting part, the lighting cover having a reflecting surface for reflecting light from the lighting part to transmit the light into the room through the second opening, and a restrictor that restricts passage of air between the periphery of the lighting part and the lighting cover, and
a gap for air intake is provided between a lower end of the lighting cover and an edge of the second opening so that air is introduced into the main housing through the second opening and the gap for air intake, and the introduced air is discharged through the first opening into the duct by the fan unit, the edge of the second opening being located below the lower end of the lighting cover.

2. The ceiling mounted ventilation fan with illumination according to claim 1 , wherein the lighting cover comprises a generally circular truncated conical cylinder shape or a generally polygonal truncated prismoidal cylinder shape such that an opening of a lower end of the lightning cover is larger than an opening of an upper end of the lightning cover, and a lid member that substantially seals the opening of the lower end comprises the restrictor.

3. The ceiling mounted ventilation fan with illumination according to claim 2 , wherein the lid member is detachably provided at the lower end of the lighting cover.

4. The ceiling mounted ventilation fan with illumination according to claim 1 , wherein, on an inner surface of the main housing, a sound absorbing material is provided at least at a position facing an air inlet of the fan unit.

5. The ceiling mounted ventilation fan with illumination according to claim 1 , wherein the main housing further includes a third opening provided at a position spaced from the second opening and communicating with the interior of the room, so that air introduced into the main housing through the second opening and the gap for air intake, together with air introduced into the main housing through the third opening, is discharged into the duct through the first opening by the fan unit.

6. The ceiling mounted ventilation fan with illumination according to claim 1 , wherein the lighting cover is spaced from the edge of the second opening of the main housing.

7. The ceiling mounted ventilation fan with illumination according to claim 1 , the restrictor being configured to engage an interior surface of the lighting cover.

8. The ceiling mounted ventilation fan with illumination according to claim 1 , the restrictor being attachable to and detachable from the lighting cover.

9. A ceiling mounted ventilation fan with illumination comprising a fan unit, a main housing, and lighting equipment installed in the main housing, wherein
the main housing includes a first opening in communication with the fan unit and a duct, and a second opening provided in a lower part of the main housing,
the main housing is configured to be installed in a ceiling such that an indoor-side air inlet provided by an opening member provided at a ceiling opening and the second opening of the main housing are in communication with each other,
the lighting equipment includes a lighting part, a lighting cover fixed to the main housing and provided in the main housing so as to surround a periphery of the lighting part, the lighting part having a reflecting surface for reflecting light from the lighting part to transmit the light to an interior of a room through the second opening and the indoor-side air inlet, and a restrictor that restricts passage of air between the periphery of the lighting part and the lighting cover, and
a gap for air intake is provided between a lower end of the lighting cover and an edge of the opening member so that air is introduced into the main housing through the indoor-side air inlet and the gap for air intake, and the introduced air is discharged through the first opening into the duct by the fan unit, the edge of the opening member being located below the lower end of the lighting cover.

10. The ceiling mounted ventilation fan with illumination according to claim 9 , wherein the lighting cover is spaced from the edge of the opening member.

11. The ceiling mounted ventilation fan with illumination according to claim 9 , the restrictor being configured to engage an interior surface of the lighting cover.

12. The ceiling mounted ventilation and with illumination according to claim 9 , the restrictor being the attachable to and detachable from the lighting cover.

13. The ceiling mounted ventilation fan according to claim 9 , said fan unit comprising a fan and a fan housing, said lighting part comprising a lamp.

14. A ceiling mounted ventilation fan with illumination comprising a fan housing, a main housing, and lighting equipment installed in the main housing, wherein
the main housing includes a first opening in communication with the fan housing and a duct, and a second opening provided in a lower part of the main housing so as to communicate with an interior of a room,
the lighting equipment includes a lamp, a lighting cover fixed to the main housing and provided in the main housing so as to surround a periphery of the lamp, the lighting cover having a reflecting surface for reflecting light from the lamp to transmit the light into the room through the second opening, and a restrictor that restricts passage of air between the periphery of the lamp and the lighting cover, and
a gap for air intake is provided between a lower end of the lighting cover and an edge of the second opening so that air is introduced into the main housing through the second opening and the gap for air intake, and the introduced air is discharged through the first opening into the duct by the fan housing, the edge of the second opening being located below the lower end of the lighting cover.

15. The ceiling mounted ventilation fan with illumination according to claim 14 , wherein the lighting cover comprises a generally circular truncated conical cylinder shape or a generally polygonal truncated prismoidal cylinder shape such that an opening of a lower end of the lightning cover is larger than an opening of an upper end of the lightning cover, and a lid member that substantially seals the opening of the lower end comprises the restrictor.

16. The ceiling mounted ventilation fan with illumination according to claim 15 , wherein the lid member is detachably provided at the lower end of the lighting cover.

17. The ceiling mounted ventilation fan with illumination according to claim 14 , wherein, on an inner surface of the main housing, a sound absorbing material is provided at least at a position facing an air inlet of the fan housing.

18. The ceiling mounted ventilation fan with illumination according to claim 14 , wherein the main housing further includes a third opening provided at a position spaced from the second opening and communicating with the interior of the room, so that air introduced into the main housing through the second opening and the gap for air intake, together with air introduced into the main housing through the third opening, is discharged into the

Assignees

• Panasonic Eco Sys Guangdong Co
• Panasonic Corp

Inventors

• Yang Decong
• Tan Qianhao
• Yang Pingting
• Liang Qiuqian
• Wu Yannong
• Yoshikawa Hitoshi

Classifications

• F21V33/0096 Primary

  Fans, e.g. ceiling fans (forced cooling of lighting devices characterised by the arrangement of fans F21V29/67) · CPC title

• F24F13/078

  combined with lighting fixtures · CPC title

• F24F2221/14

  mounted on the ceiling · CPC title

• F04D29/661

  especially adapted for elastic fluid pumps · CPC title

• F21V21/04

  Recessed bases · CPC title