Hygiene management device for entrance hall and control method of same

Patent metadata

Field	Value
Publication number	US-12416422-B2
Application number	US-202117550961-A
Country	US
Kind code	B2
Filing date	Dec 14, 2021
Priority date	Dec 14, 2020
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A hygiene management device for an entrance hall and a control method of the same are proposed. The hygiene management device may be installed in the space of the entrance hall, and when the opening of an entrance door is detected, air is discharged toward the entrance door by tilting an air discharger toward the entrance door, and when the closing of the entrance door is detected, the air discharger is tilted to a preset initial position to stop the discharging of air. Accordingly, during the opening of the entrance door, the introduction of external air into the space of the entrance hall may be minimized.

First claim

What is claimed is:

1. A hygiene management device for an entrance hall, the device comprising:
a first detector configured to detect an opening/closing of an entrance door located in the entrance hall;
an air discharger located in the entrance hall and configured to discharge air in a downward direction toward a space;
a fan assembly configured to generate a flow of air toward the air discharger to allow the air discharger to discharge air to the space;
a duct connecting the fan assembly with the air discharger;
a lift assembly configured to tilt the air discharger;
a plurality of vanes configured to control a direction of air discharged through the air discharger; and
a controller configured to drive the fan assembly and the lift assembly, in response to the first detector detecting the opening of the entrance door, the controller being configured to:
drive the lift assembly such that the air discharger is tilted, and
drive the fan assembly such that the tilted air discharger discharges air,

wherein upper portions of the plurality of vanes are disposed in the duct and lower portions of the plurality of vanes are disposed in the air discharger,
wherein the lift assembly includes:
a first lift mounted at a first side of the air discharger;
a second lift mounted at a second side of the air discharger opposite to the first side of the air discharger; and
at least one lift motor configured to drive the first lift and the second lift, and

wherein the first lift is configured to operate to tilt the air discharger such that the first side of the air discharger is lowered and the air discharger is angled toward the entrance door.

2. The hygiene management device of claim 1 , wherein the plurality of vanes includes a first plurality of vanes and a second plurality of vanes
wherein the second plurality of vanes are located downstream in the duct with respect to the first plurality of vanes, and
wherein a length of at least one upper portion of the plurality of second vanes is larger than a length of at least one upper portion of the first plurality of vanes.

3. The hygiene management device of claim 1 , wherein the controller is configured to stop an operation of the fan assembly such that the discharging of air stops in response to a preset period of time elapsing after the discharging of air.

4. The hygiene management device of claim 3 , further comprising:
a footrest positioned at a bottom of the space of the entrance hall; and
a second detector configured to detect whether a user is present on the footrest,
wherein the controller is configured to stop the operation of the fan assembly such that the discharging of air stops in response to the user not being detected on the footrest by the second detector before the preset period of time elapses.

5. The hygiene management device of claim 4 , wherein the footrest includes a plurality of introduction holes, and
wherein the plurality of introduction holes are configured to receive air discharged from the air discharger.

6. The hygiene management device of claim 1 , wherein the controller is configured to, while the air discharger is tilted, in response to the closing of the entrance door being detected by the first detector, drive the lift assembly to tilt the tilted air discharger to an initial position, and
wherein in the initial position, the air discharger faces a center of the space of the entrance hall.

7. The hygiene management device of claim 1 , further comprising:
a footrest positioned at a bottom of the space of the entrance hall; and
a second detector configured to detect whether a user is present on the footrest,
wherein the controller is configured to drive the fan assembly such that the air discharger discharges air toward the user in response to the second detector detecting the user is on the footrest.

8. The hygiene management device of claim 2 , wherein the first plurality of vanes includes a first vane disposed at the first side of the air discharger; and
wherein the second plurality of vanes includes a second vane disposed at the second side of the air discharger spaced from the first vane, and
wherein the first vane and the second vane are configured to receive air from the fan assembly and to discharge air in a preset direction.

9. The hygiene management device of claim 8 , wherein the first vane is disposed closer to the fan assembly than the second vane, and
wherein the second vane is disposed higher with respect to a vertical direction than the first vane.

10. The hygiene management device of claim 8 , wherein the first vane has a longer length than the second vane.

11. The hygiene management device of claim 1 wherein the duct comprises:
a first duct disposed in a vertical direction, and
a second duct that connects to the first duct and is disposed in a horizontal direction,
wherein the first duct is disposed closer to the fan assembly than the second duct, and
wherein the second duct is disposed closer to the air discharger than the first duct.

12. The hygiene management device of claim 11 , wherein the upper portions of the plurality of vanes are disposed in the second duct.

13. The hygiene management device of claim 11 , wherein the first lift and second lift are located under the second duct with respect to the vertical direction.

14. The hygiene management device of claim 1 , wherein each of the first lift and the second lift is configured to move in a vertical direction.

15. The hygiene management device of claim 1 , wherein the at least one lift motor comprises:
a first lift motor configured to drive the first lift; and
a second lift motor configured to drive the second lift.

16. The hygiene management device of claim 15 , wherein the first lift motor and the second lift motor are each located on a bottom surface of the duct.

Assignees

• Lg Electronics Inc

Inventors

• Kim Taihong
• Cha Hyunbyung
• Yoo Hyunsun
• Oh Joohyeon
• Han Byoungjoonphilip
• Lee Sang Yoon
• Kim Hyunju
• Lee Chul Bae

Classifications

• F24F13/072

  of elongated shape, e.g. between ceiling panels · CPC title

• F24F2009/007

  using more than one jet or band in the air curtain · CPC title

• F24F2120/12

  Position of occupants · CPC title

• F24F11/79

  for controlling the direction of the supplied air · CPC title

• A47G25/00

  Household implements used in connection with wearing apparel; Dress, hat or umbrella holders (wardrobes A47B61/00) · CPC title