US 11,629,861 B2Granted

Kitchen hood with slim profile

AssigneeLG Electronics Inc.

InventorsHeejeong Heo, Younju Oh, Hyun byung Cha, Chin Soo Hyon, HyunJu Kim

Life of this patent

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Abstract

A kitchen hood has a first housing and a second housing that slides into and out of the first housing to adjust a length of the kitchen hood. The first housing has a fan to suction air, an outlet, and an air quality sensor assembly to continuously detect air quality in a kitchen. The second housing has an inlet and suction grill through which air is suctioned, a steam cleaning assembly to automatically steam clean an interior of the kitchen hood, and a height sensing assembly to sense a height of cookware seated on a cooktop surface below the second housing. The kitchen hood may be lengthened or shortened based on the sensed height of the cookware, and a speed of the fan and the height of the kitchen hood may be automatically adjusted based on detections by the air quality sensor assembly.

Claims25

Dependent claims

A kitchen hood, comprising:

a housing having a front, rear, top, and bottom, and left and right sides provided between the front, rear, top and bottom, the rear being configured to be installed on a wall;
a fan provided inside of an upper section of the housing to suction air;
a left inlet formed on the left side of the housing through which air is suctioned;
a right inlet formed on the right side of the housing through which air is suctioned;
a left grill covering the left inlet;
a right grill covering the right inlet;
an outlet formed in the top of the housing through which air is discharged;
a user interface formed on the front of the housing;
a container passage formed in a front-rear direction of a lower section of the housing;
a container configured to store liquid aid to be inserted into and removed from the container passage, a front-rear length of the container being greater than a left-right length of the container;
a heater provided at a rear of the container and configured to heat liquid supplied from the container to generate steam;
a steam distributor provided in the upper section of the housing and configured to release steam generated from the heater;
and
a condensate collector provided under the steam distributor and above the container, the condensate collector being configured to guide condensate created from the steam down to the container,
wherein a depth in the front-rear direction of the housing is longer than a width in the left-right direction.

12 more elements

A kitchen hood, comprising:

a housing having a front, rear, top, and bottom, and left and right sides provided between the front, rear, top and bottom, the rear being configured to be installed on a wall;
a fan provided inside of an upper section of the housing to suction air;
a left inlet formed on the left side of the housing through which air is suctioned;
a right inlet formed on the right side of the housing through which air is suctioned;
a left suction grill provided in the left inlet;
a right suction grill provided in the right inlet;
an outlet formed in a top of the housing through which suctioned air is discharged;
a left suction passage formed between the left inlet and the outlet;
a right suction passage formed between the right inlet and the outlet, wherein the left suction passage is configured to be selectively opened and closed and the right suction passage is configured to be selectively opened and closed, and an opening and closing of the left and right suction passages are controlled independently;
a guide provided inside of the housing and spaced apart from the right and left sides of the housing, the right suction passage being defined between a right side of the guide and the right side of the housing and the left suction passage being defined between a left side of the guide and the left side of the housing;
a left damper coupled to the guide and configured to change a degree of opening of the left suction passage;
a right damper coupled to the guide and configured to change a degree of opening of the right suction passage;
a left motor provided inside of the guide to control the left damper between an opened position and a closed position;
and
a right motor provided inside of the guide to control the right damper between an opened position and a closed position.

12 more elements

A kitchen hood, comprising:

a housing configured to be installed on a wall, the housing having a top section and a bottom section, wherein a length of the housing changes based on movement of the bottom section into the top section;
a fan coupled to the top section of the housing;
a first inlet formed at the bottom section of the housing;
a first grill to cover the first inlet;
an outlet formed in the top section of the housing through which air is discharged;
and
a first suction passage formed from the first inlet to the outlet, wherein, when the length of the housing is increased, a length of the first suction passage is increased, and when the length of the housing is decreased, a length of the first suction passage is decreased
a second inlet formed at the bottom section of the housing at a side opposite to a side where the first inlet is formed;
a second grill to cover the second inlet;
a second suction passage formed from the second inlet to the outlet, wherein, when the length of the housing is increased, a length of the second suction passage is increased, and when the length of the housing is decreased, a length of the second suction passage is decreased,
a first damper configured to change a degree of opening of the first suction passage;
a second damper configured to change a degree of opening of the second suction passage;
a first motor to control the first damper between an opened position and a closed position;
and
a second motor to control the second damper between an opened position and a closed position.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/937,917Filed 24 Jul 2020 · us provisional application
Priority: KR 10-2020-007365917 Jun 2020
Published: US 2021/0123605 A129 Apr 2021
Granted: 18 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

F24C 15/2085
Movable: adjustable in height
B08B 1/32
By movement of cleaning members over a surface: using rotary cleaning members
B08B 3/10
Cleaning involving contact with liquid: with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by…
B08B 9/027
Cleaning pipes or tubes or systems of pipes or tubes: cleaning the internal surfaces; Removal of blockages