Pipe shield of ventilating apparatus

Patent metadata

Field	Value
Publication number	US-2019011141-A1
Application number	US-201615748725-A
Country	US
Kind code	A1
Filing date	Jul 21, 2016
Priority date	Jul 31, 2015
Publication date	Jan 10, 2019
Grant date	—

Abstract

A pipe shield of a ventilating apparatus is disposed at an outdoor side relative to a ventilating apparatus body disposed at an indoor side, and includes a pipe shield base and a rear cover. The pipe shield has an air inlet and an air outlet disposed perpendicular to each other. The pipe shield's rear cover has a left side plate, a right side plate and a rear side plate. The distance from the pipe shield base to the rear side plate of the rear cover opposite to the air inlet of the pipe shield increases in a direction towards the air outlet of the pipe shield. A baffle is disposed at the middle portion of the rear cover, and fixed within the pipe shield by a rotating shaft fixed on the left side plate and the right side plate, the rotating shaft has a spring enabling the baffle to unfold.

First claim

What is claimed is:

1 . A pipe shield of a ventilating apparatus disposed at an outdoor side relative to a ventilating apparatus body disposed at an indoor side, and comprising a pipe shield base and a rear cover,
wherein the pipe shield is provided with an air inlet and an air outlet disposed perpendicular to each other, and the rear cover of the pipe shield is provided with a left side plate, a right side plate and a rear side plate, and the distance from the pipe shield base to the rear side plate of the rear cover opposite to the air inlet of the pipe shield increases in a direction towards the air outlet of the pipe shield; a baffle is disposed at the middle portion of the rear cover, and fixed within the pipe shield by a rotating shaft fixed on the left side plate and the right side plate, the rotating shaft being provided with a spring capable of enabling the baffle to unfold; when the ventilating apparatus body is stopped, the baffle is adapted to close an air flow path by means of an elastic force of the spring; and when the ventilating apparatus body is in operation and the baffle is adapted to open the air flow path, the baffle is disposed at an intersecting surface within the pipe shield and between an airflow a flow direction of which has been changed by the rear cover of the pipe shield and an airflow a flow direction of which has not been changed, and is disposed in the same direction as a flow direction of the airflow blown out from the air outlet of the pipe shield.

2 . The pipe shield of the ventilating apparatus according to claim 1 , wherein the baffle comprises a first baffle piece and a second baffle piece, and
a third baffle piece is provided on a wall of the pipe shield in contact with an end of the first baffle piece, and a fourth baffle piece is provided on a wall of the pipe shield in contact with an end of the second baffle piece.

3 . The pipe shield of the ventilating apparatus according to claim 2 , wherein the third baffle piece is provided on the pipe shield base and provided as a strip-shaped protrusion so as to overlap with the end of the first baffle piece, and
the fourth baffle piece is provided on the rear cover of the pipe shield and provided as a protrusion in contact with the end of the second baffle piece.

4 . The pipe shield of the ventilating apparatus according to claim 1 , wherein the baffle is provided with ribs on a surface facing the outdoor side when the baffle is adapted to close the air flow path,

5 . The pipe shield of the ventilating apparatus according to claim 1 , wherein the baffle is disposed at a position within the pipe shield and in a range of 25% to 65% of the distance from the pipe shield base to the rear cover of the pipe shield opposite to the air inlet of the pipe shield.

6 . The pipe shield of the ventilating apparatus according to claim 1 , wherein a rib is provided on a surface of the baffle that is in contact with the airflow, in a direction from the air inlet to the air outlet.

7 . The pipe shield of the ventilating apparatus according to claim 1 , wherein a groove is provided on a surface of the baffle that is in contact with the airflow, in a direction from the air inlet to the air outlet.

Assignees

• Panasonic Eco Sys Guangdong Co
• Panasonic Corp

Inventors

• Liu Donghai
• Wu Jianqiang
• Hong Jiahan
• Funada Naoyuki
• Suzuki Masato

Classifications

• F24F11/0001

  for ventilation (F24F11/30 takes precedence) · CPC title

• F24F7/007 Primary

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

• F24F13/24

  Means for preventing or suppressing noise · CPC title

• F24F13/075

  having parallel rods or lamellae directing the outflow, e.g. the rods or lamellae being individually adjustable (F24F13/072 takes precedence) · CPC title

• F24F13/082

  Grilles, registers or guards · CPC title