Ventilation fan

Patent metadata

Field	Value
Publication number	US-11241597-B2
Application number	US-201916388505-A
Country	US
Kind code	B2
Filing date	Apr 18, 2019
Priority date	Jul 31, 2015
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A ventilation fan according to the invention comprises a fan module, a fire damper module and a cover module. The fire damper module comprises a link frame, a fire damper body and an adjustment element. The fire damper body is disposed in the link frame and detachably linked up with the link frame. The adjustment element is disposed on the fire damper body and near an opening of a flange of the fire damper body. The adjustment element comprises a fixed portion, a stop portion and a trace portion. Wherein the stop portion abuts and shields the opening when no electrical wire passing through the opening. Wherein when the cover module comprises an electronic device having an electrical wire, the trace portion abuts the opening and the electrical wire passing through the trace portion and the opening to connect to the fan module.

First claim

What is claimed is:

1. A ventilation fan, comprising:
a fan module, comprising a housing having an air intake and an air outtake;
a fire damper module, disposed in the air intake and comprising:
a link frame, linked up with the housing;
a fire damper body, disposed in the link frame and detachably linked up with the link frame, the fire damper body comprises a flange and fire curtains, the flange extends inwardly on the inner surface of the fire damper body, wherein the flange has an opening; and
an adjustment element, disposed on the fire damper body and near the opening, the adjustment element comprises a fixed portion, a stop portion and a trace portion, the stop portion and the trace portion are respectively connected to the fixed portion, and the fixed portion is located between the stop portion and the trace portion; and
a cover module, disposed on the fire damper module;
wherein the stop portion abuts and shields the opening when no electrical wire passing through the opening; and
wherein when the cover module comprises an electronic device having an electrical wire, the trace portion abuts the opening and the electrical wire passing through the trace portion and the opening to connect to the fan module;
wherein the adjustment element is rotated 180 degrees so that the trace portion abuts the opening.

2. The ventilation fan of claim 1 , wherein the fixed portion has a fixed hole, a securing unit passes through the fixed hole to secure the fixed portion to the fire damper body.

3. The ventilation fan of claim 2 , wherein the trace portion comprises an abutment terminal, the abutment terminal and the stop portion are substantially symmetric about the fixed hole.

4. The ventilation fan of claim 3 , wherein the fixed hole is located between the abutment terminal and the stop portion, a distance from the fixed hole to the stop portion is equal to a distance from the fixed hole to the abutment terminal.

5. The ventilation fan of claim 3 , wherein the fixed hole, the stop portion and the abutment terminal are located at the same straight line.

6. The ventilation fan of claim 3 , wherein the trace portion further comprises a notch, the abutment terminal abuts the surrounding of the opening so that the notch communicates with the opening, the electrical wire passes through the notch and the opening to connect to the fan module.

7. The ventilation fan of claim 6 , wherein the notch is an arc notch.

8. The ventilation fan of claim 1 , wherein the cover module further comprises a cover body, and the electronic device is connected to the cover body.

9. The ventilation fan of claim 1 , wherein the adjustment element is rotatable to avoid a jam caused by the electrical wire when the fire damper body is detached from the link frame.

10. The ventilation fan of claim 1 , wherein the fire curtains are fixed to a sidewall of the fire damper body.

11. The ventilation fan of claim 1 , wherein the fire damper body is detachably linked up with the link frame by screw, latch, or concave-convex match.

12. The ventilation fan of claim 1 , wherein the cover module is linked up with the fire damper module by screw, elastic sheet, or engaging piece.

13. The ventilation fan of claim 1 , wherein the fan module is an axial fan module or a centrifugal fan module.

14. The ventilation fan of claim 1 , wherein the adjustment element is a metal plate.

15. The ventilation fan of claim 1 , wherein the electronic device is stereo set, smoke detector, lamp, light sensor, or control panel.

Assignees

• Delta Electronics Inc

Inventors

• Chen Chun-Wei
• Lin Wen-Hsiang

Classifications

• F24F11/33

  to fire, excessive heat or smoke · CPC title

• F24F2221/30

  comprising fireproof material · CPC title

• A62C2/14 Primary

  with two or more blades · CPC title

• F24F7/013

  using wall or window fans, displacing air through the wall or window · CPC title

• F24F13/14

  built up of tilting members, e.g. louvre · CPC title