Mask apparatus with rear surface inlet, outlet and filter assembly

Patent metadata

Field	Value
Publication number	US-12521579-B2
Application number	US-202217572179-A
Country	US
Kind code	B2
Filing date	Jan 10, 2022
Priority date	Jul 19, 2021
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

A mask apparatus includes a mask body including a rear body and a front body coupled to a front surface of the rear body and providing an inlet and an outlet, a face guard coupled to the rear body and defining a respiration space, and an air cleaning module purifying air introduced into the inlet and supplying the purified air to the respiration space. A portion of the rear body defines an accommodation portion accommodating the air cleaning module. The air cleaning module includes a fan module disposed at a seating portion of the accommodation portion, a filter disposed at a rear side of the fan module and purifying air flowing into the fan module, and a filter housing including a filter frame surrounding a side surface of the filter and a filter cover covering a rear surface of the filter. The inlet is provided at the filter cover.

First claim

What is claimed is:

1 . A mask apparatus comprising:
a mask body having an inlet and outlet, the mask body including:
a rear body, and
a front body coupled to a front surface of the rear body;
a face guard that is coupled to a rear surface of the rear body, that is configured to accommodate a portion of user's face, and that defines a respiration space at an inner side thereof; and an air cleaning module that is mounted on the rear body, that is configured to purify air introduced into the inlet, and that is configured to supply the purified air to the respiration space, wherein a portion of the rear body protrudes toward the front body to define an accommodation portion configured to accommodate the air cleaning module, wherein the accommodation portion is provided in a pair, wherein each of the accommodation portions includes:
a fastening surface extending forward from a side end portion of the rear body,
a seating surface that extends toward a center of the rear body from an end portion of the fastening surface and that accommodates the air cleaning module, and
an air guide surface connecting an end portion of the seating surface to the front surface of the rear body,
wherein the air cleaning module includes:
a fan module disposed at a seating portion of each of the accommodation portions,
a filter that is disposed at a rear side of the fan module and that is configured to purify air flowing into the fan module, and
a filter housing including a filter frame that surrounds a side surface of the filter and a filter cover that covers a rear surface of the filter,
wherein the inlet is provided at the filter cover in the rear surface of the rear body and disposed at an outside of the face guard, to thereby introduce ambient air into the mask body through the inlet, and wherein the outlet is provided at the rear surface of the rear body and disposed at an inside of the face guard, to thereby supply the purified air into the respiration space through the outlet.

2 . The mask apparatus of claim 1 , wherein the inlet has a shape of an intaking grille that includes a plurality of intaking slits and a plurality of partitioning ribs.

3 . The mask apparatus of claim 2 , wherein the plurality of intaking slits and the plurality of partitioning ribs (i) extend from an upper end of the filter cover toward a lower end of the filter cover and (ii) are alternately arranged from a first side end portion of the filter cover to a second side end portion of the filter cover, and
wherein a distance between the first side end portion and a center of the mask body is shorter than a distance between the first side end portion and an edge of the mask body.

4 . The mask apparatus of claim 3 , wherein each of the plurality of partitioning ribs includes:
an entrance surface defining a portion of the rear surface of the mask body, an exit surface corresponding to an opposite surface of the entrance surface, a first side surface facing the first side end portion of the filter cover, and a second side surface corresponding to an opposite side of the first side surface, and wherein the first side surface and the second side surface are inclined at a predetermined angle with respect to a reference line perpendicular to the entrance surface or the exit surface.

5 . The mask apparatus of claim 4 , wherein a first inclination angle between the first side surface and the reference line is greater than a second inclination angle between the second side surface and the reference line.

6 . The mask apparatus of claim 5 , wherein the first inclination angle includes a first set of inclination angles and the second inclination angle includes a second set of inclination angles,
wherein the first set of inclination angles correspond to the plurality of partitioning ribs and increase toward the first side end portion of the filter cover, and wherein the second set of inclination angles correspond to the plurality of partitioning ribs and increase toward the first side end portion of the filter cover.

7 . The mask apparatus of claim 6 , wherein a value of the first inclination angle of a first rib of the plurality of partitioning ribs is equal to a value of the second inclination angle of a second rib of the plurality of partitioning ribs facing the first inclination angle, the second rib being adjacent to the first rib among the plurality of partitioning ribs.

8 . The mask apparatus of claim 3 , further comprising:
a reinforcing rib partitioning the inlet into an upper intake grille and a lower intake grille.

9 . The mask apparatus of claim 1 , wherein each of the accommodation portions further includes:
an upper surface connecting upper ends of the fastening surface, the seating surface, and the air guide surface to the front surface of the rear body, and a lower surface connecting lower ends of the fastening surface, the seating surface, and the air guide surface to the front surface of the rear body.

10 . The mask apparatus of claim 9 , wherein at least one of the fastening surface or the air guide surface is curved.

11 . The mask apparatus of claim 1 , wherein the inlet is a hole array in which a plurality of holes are defined.

12 . The mask apparatus of claim 11 , wherein the plurality of holes are defined in a width direction and a length direction of the mask body.

13 . The mask apparatus of claim 12 , wherein the plurality of holes have a same diameter.

14 . The mask apparatus of claim 12 , wherein the plurality of holes have different diameters.

15 . The mask apparatus of claim 14 , wherein diameters of the plurality of holes decrease from a side end portion of the mask body toward a center of the mask body.

16 . The mask apparatus of claim 14 , wherein diameters of the plurality of holes decrease from a center of the mask body toward an edge of the hole array.

17 . The mask apparatus of claim 14 , wherein diameters of the plurality of holes increase from a top of the hole array to a bottom of the hole array.

18 . The mask apparatus of claim 14 , wherein diameters of the plurality of holes decrease from a top of the hole array to a bottom of the hole array.

Assignees

• Lg Electronics Inc

Inventors

• Mun Yeongcheol
• Baek Sangkyun
• An Dongkwon
• Kim Dongeun
• Ahn Sejeong

Classifications

• A62B23/02

  for respirators · CPC title

• A62B18/025 Primary

  Halfmasks (A62B23/02 takes precedence; surgical face masks A41D13/11) · CPC title

• A41D13/1107

  characterised by their shape · CPC title

• A62B18/08

  Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices (eye-pieces for protective goggles A61F9/02; composition of materials for the windows or other transparent parts A62D7/00) · CPC title

• A62B18/006 Primary

  with pumps for forced ventilation (A62B18/045 takes precedence) · CPC title