Ventilation fan

Patent metadata

Field	Value
Publication number	US-10352584-B2
Application number	US-201414565974-A
Country	US
Kind code	B2
Filing date	Dec 10, 2014
Priority date	Dec 10, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A ventilation fan comprises a fan, a cover module and a filter. The fan includes an inlet and an outlet. The cover module is disposed at the inlet and includes a main body and a cover. The main body includes an opening and fixing portions. The opening is disposed corresponding to the inlet. The periphery of the opening is configured with two opposite slideways. The fixing portions are disposed on the main body. The cover and the main body are disposed separately to form a gap and the cover includes connecting portions correspondingly connected to the fixing portions. The filter detachably slides on the slideways to be disposed at the opening. The size of the cover is larger than that of the opening. The air flows to the filter and inlet through the gap and flows out of the outlet through the fan.

First claim

What is claimed is:

1. A ventilation fan installed to a ceiling comprising:
a fan including an inlet and an outlet;
a cover module disposed at the inlet and including:
a main body disposed at the inlet and including:
an opening disposed corresponding to the inlet, wherein the periphery of the opening is configured with two opposite slideways; and
a plurality of fixing portions having a tenon-type structure and disposed on the main body; and

a cover including a plurality of connecting portions and a blocking wall, wherein the cover and the main body are disposed separately, a gap for side suction of air is formed between an edge of the cover and an edge of the main body, the plurality of connecting portions have a tenon-type structure and are correspondingly connected to the plurality of fixing portions, and the blocking wall is disposed around a surface of the cover facing the main body so as to prevent water from dropping or flowing when the ventilation fan is installed to the ceiling; and

a filter having a capability to slide on the slideways and be detached to be disposed at the opening;
wherein an area of the cover is larger than that of the opening, and air flows to the filter and the inlet through the gap and then flows out of the outlet through the fan, the cover and the main body are fixed parallel to each other by the tenon-type structure to form the gap, such that four sides of the cover module have a side suction entry communicating with an outside, an airflow direction of an airflow from the outside through the side suction entry is perpendicular to a normal direction of the opening of the main body, the filter is slidably disposed between and parallel to the cover and the main body.

2. The ventilation fan as recited in claim 1 , wherein the width of the gap is between 5 mm and 30 mm.

3. The ventilation fan as recited in claim 1 , wherein a height of the blocking wall is greater than 2 mm.

4. The ventilation fan as recited in claim 1 , wherein the cover further includes a plurality of depressions and/or blind holes which are disposed on the surface of the cover facing the main body.

5. The ventilation fan as recited in claim 1 , wherein an average distance from a projection location of the edge of the cover on the main body to the opening is greater than or equal to a width of the gap.

6. The ventilation fan as recited in claim 1 , wherein the main body includes at least a first positioning portion and the filter includes at least a second positioning portion, and the first positioning portion and the second positioning portion are engaged with each other, wherein the first positioning portion is an opening or hole, and the second positioning portion is a protrusion.

7. The ventilation fan as recited in claim 6 , wherein the filter includes two second positioning portions which are disposed on two sides of the filter respectively.

8. The ventilation fan as recited in claim 1 , which further comprises:
at least a screw, wherein the cover module is connected to the fan by the screw.

9. The ventilation fan as recited in claim 1 , which further comprises:
at least an elastic element, wherein the cover module is connected to the fan by the elastic element.

10. A ventilation fan installed to a ceiling, comprising:
a fan including an inlet and an outlet;
a cover module disposed at the inlet and including:
a main body disposed at the inlet and including:
an opening disposed corresponding to the inlet, wherein the periphery of the opening is configured with two opposite slideways; and
a plurality of fixing portions having a tenon-type structure and disposed on the main body; and

a cover, wherein the cover and the main body are disposed separately, a gap for side suction of air is formed between an edge of the cover and an edge of the main body and the cover includes a plurality of connecting portions having a tenon-type structure and correspondingly connected to the plurality of fixing portions; and

a filter having a capability to slide on the slideways and be detached to be disposed at the opening;
wherein the main body further includes at least a first positioning portion on a surface of the main body facing the filter, the filter includes at least a second positioning portion on a surface of the filter facing the main body, the first positioning portion and the second positioning portion are engaged with each other, the first positioning portion is an opening or hole, and the second positioning portion is a protrusion,
wherein an area of the cover is larger than that of the opening, and air flows to the filter and the inlet through the gap and then flows out of the outlet through the fan, the cover and the main body are fixed parallel to each other by the tenon-type structure to form the gap, such that four sides of the cover module have a side suction entry communicating with an outside, an airflow direction of an airflow from the outside through the side suction entry is perpendicular to a normal direction of the opening of the main body, and the filter is slidably disposed between and parallel to the cover and the main body.

11. The ventilation fan as recited in claim 10 , wherein the width of the gap is between 5 mm and 30 mm.

12. The ventilation fan as recited in claim 10 , wherein the cover further includes a blocking wall disposed around a surface of the cover facing the main body.

13. The ventilation fan as recited in claim 12 , wherein a height of the blocking wall is greater than 2 mm.

14. The ventilation fan as recited in claim 10 , wherein the cover further includes a plurality of depressions and/or blind holes which are disposed on a surface of the cover facing the main body.

15. The ventilation fan as recited in claim 10 , wherein an average distance from a projection location of the edge of the cover on the main body to the opening is greater than or equal to a width of the gap.

16. The ventilation fan as recited in claim 10 , wherein the filter includes two second positioning portions which are disposed on two sides of the filter respectively.

17. The ventilation fan as recited in claim 10 , which further comprises:
at least a screw, wherein the cover module is connected to the fan by the screw.

18. The ventilation fan as recited in claim 10 , which further comprises:
at least an elastic element, wherein the cover module is connected to the fan by the elastic element.

Assignees

• Delta Electronics Inc

Inventors

• Huang Yu-Hsiang
• Cheng Kuan-Chung
• Lin Chih-Hua

Classifications

• F24F7/007

  with forced flow (using ducting systems F24F7/06) · CPC title

• F24F13/28 Primary

  Arrangement or mounting of filters · CPC title