Ceiling mounted ventilation fan with illumination

• US 8,814,513 B2
• Filed: 09/29/2011
• Issued: 08/26/2014
• Est. Priority Date: 01/06/2011
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation), Panasonic Ecology Systems Guangdong Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation), Panasonic Ecology Systems Guangdong Company Limited (Panasonic Holdings Corporation)
• Inventors: Yang, Decong, Tan, Qianhao, Yang, Pingting, Liang, Qiuqian, Wu, Yannong, Yoshikawa, Hitoshi
• Primary Examiner(s): Look, Edward
• Assistant Examiner(s): Flores, Juan G
• Application Number:
  US13/992,881
• Publication Number:
  US 20130266443A1
• Time in Patent Office: 1,062 Days
• Field of Search: 415/119, 415/213.1, 415/214.1, 415/118, 416/5, 416/244.R, 362/364, 454/293, 454/349
• US Class Current: 416/5
• CPC Class Codes: F04D 29/00 Details, component parts, or accessories machine elements in general F16
• CPC Class Codes: F04D 29/661 especially adapted for elastic fluid pumps
• CPC Class Codes: F21V 21/04 Recessed bases
• CPC Class Codes: F21V 33/0096 Fans, e.g. ceiling fans forced cooling of lighting devices characterised by the arrangement of fans F21V29/67
• CPC Class Codes: F24F 13/078 combined with lighting fixtures
• CPC Class Codes: F24F 2221/14 mounted on the ceiling
• CPC Class Codes: F24F 7/065 fan combined with single duct; mounting arrangements of a fan in a duct

Abstract

A ceiling mounted ventilation fan with illumination capable of suppressing conduction of noise to inside of a room is provided. In the fan, a restriction member is provided for restricting passage of air between a lighting cover and a periphery of a lighting part, the lighting cover having a reflecting surface for reflecting light from the lighting part to lead the light to the inside of the room. A gap for air intake is formed between a lower end of the lighting cover and an edge of the indoor-side opening. Thus, air introduced into the main housing through the gap is discharged into the duct by the fan unit and conduction of noises produced by the fan unit to the room inside with the noise directivity enhanced in the lighting cover can be suppressed by the restriction member, so that conduction of noise to the room inside can be suppressed.

Claims

1. A ceiling mounted ventilation fan with illumination comprising a main housing, and a fan unit and lighting equipment installed in the main housing, wherein

the main housing includes a first opening connected to an air outlet of the fan unit, the first opening communicating with 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

the lighting cover comprises a cylindrical shape that covers an entire side periphery of the lighting part while a lower end of the lighting cover is larger than an upper end of the light cover, and the restrictor is positioned so as to substantially seal at least one of the upper end and the lower end of the lighting cover, and

a gap for air intake is provided between the lower end of the lighting cover and an edge of the second opening so that air introduced into the main housing through the second opening and the gap for air intake 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 and spaced from 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 polygonal truncated prismoidal cylinder shape such that an opening of the lower end is larger than an opening of the upper end, and a lid member that substantially seals the opening of the lower end is installed as 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, the restrictor being attachable to and detachable from the lighting cover.

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

8. A ceiling mounted ventilation fan with illumination comprising a main housing, and a fan unit and lighting equipment installed in the main housing, wherein

the main housing includes a first opening connected to an air outlet of the fan unit, the first opening communicating with 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 the lower end of the lighting cover and an edge of the second opening so that air introduced into the main housing through the second opening and the gap for air intake 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 and spaced from the lighting cover, and

the lighting equipment comprises an adjuster that adjusts a height position of the lighting cover relative to the second opening of the main housing, wherein the height position of the lighting cover is adjusted by use of the adjuster thereby adjusting a size of the gap for air intake.

9. The ceiling mounted ventilation fan with illumination according to claim 8, 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.

11. The ceiling mounted ventilation fan with illumination according to claim 8, 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.

10. A ceiling mounted ventilation fan with illumination comprising a main housing, and a fan unit and lighting equipment installed in the main housing, wherein

the main housing includes a first opening connected to an air outlet of the fan unit, the first opening communicating with 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 the lower end of the lighting cover and an edge of the second opening so that air introduced into the main housing through the second opening and the gap for air intake 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 and spaced from the lighting cover,

wherein a brim protrudes from a periphery of the lower end of the lighting cover.

12. The ceiling mounted ventilation fan with illumination according to claim 10, 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.

13. The ceiling mounted ventilation fan with illumination according to claim 10, 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.

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

15. The ceiling mounted ventilation fan with illumination according to claim 12, the restrictor being positioned so as to substantially seal at least one of an upper end and the lower end of the lighting cover.

16. The ceiling mounted ventilation fan with illumination according to claim 12, the brim being distinct from the restrictor.

17. A ceiling mounted ventilation fan with illumination comprising a main housing, and a fan unit and lighting equipment installed in the main housing, wherein

the main housing includes a first opening connected to an air outlet of the fan unit, the first opening communicating with 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 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 opening member, and a restrictor that restricts passage of air between the periphery of the lighting part and the lighting cover, and

the lighting cover is configured in a cylindrical shape so as to cover an entire side periphery of the lighting part while a lower end of the lighting cover is larger than an upper end of the lighting cover, and the restrictor is positioned so as to substantially seal at least either one of the upper end and the lower end of the lighting cover, and

a gap for air intake is provided between the lower end of the lighting cover and an edge of the opening member so that air introduced into the main housing through the opening member and the gap for air intake 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 and spaced from the lighting cover.

18. The ceiling mounted ventilation fan with illumination according to claim 17, the restrictor being attachable to and detachable from the lighting cover.

19. The ceiling mounted ventilation fan with illumination according to claim 17, 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 the air introduced into the main housing through the third opening is discharged into the duct through the first opening by the fan unit.

20. A ceiling mounted ventilation fan with illumination comprising a main housing, and a fan unit and lighting equipment installed in the main housing, wherein

the main housing includes a first opening connected to an air outlet of the fan unit, the first opening communicating with a duct, and a second opening provided in a lower part of the main housing,

the main housing is 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 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 opening member, 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 the lower end of the lighting cover and an edge of the opening member so that air introduced into the main housing through the opening member and the gap for air intake 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 and spaced from the lighting cover,

wherein the lighting equipment comprises an adjuster that adjusts a height position of the lighting cover relative to the ceiling opening, wherein the height position of the lighting cover is adjusted by use of the adjuster, thereby adjusting a size of the gap for air intake.