US 12,753,931 B2Granted

Extraction device with filter carrier and filter

AssigneeElectrolux Appliances Aktiebolag

InventorsEduardo Puoti, Lokesh Patil

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Abstract

The present invention relates to an extraction device (14) for removing air from an area above a cooking hob (12). The extraction device (14) comprises an inlet opening (38) for an intake of the air into an interior of the extraction device (14), an outlet opening (30) for exhausting air, at least one filter element (52; 52a, 52b), and at least one filter carrier (50) for accommodating the at least one filter element (52; 52a, 52b). The filter element (52; 52a, 52b) and the filter carrier (50) are arranged in airflow direction between the inlet opening (38) and the outlet opening (30). According to the invention, the filter element (52; 52a, 52b) is a separate unit, which is separable and removable from the filter carrier (50). The present invention further relates to a combination appliance (10) and to a method for providing a filter carrier (50) of an extraction device (14) with a filter element (52a, 52b).

Claims16

Dependent claims

An extraction device for removing air comprising cooking vapours from an area above a cooking hob, the extraction device being configured to form a combination appliance in combination with the cooking hob, wherein the extraction device comprises:

an inlet opening for an intake of the air into an interior of the extraction device,
an outlet opening for exhausting the air into ambient air,
a first filter element comprising a filter area and a filter frame surrounding and supporting the filter area,
a filter carrier for accommodating the first filter element, the filter carrier being removably arranged inside the extraction device, and
a spring element supported against an inner surface of the filter carrier,
wherein the first filter element and the filter carrier are arranged in an airflow direction between the inlet opening and the outlet opening,
wherein the first filter element is a separate unit, which is separable and removable from the filter carrier,
wherein the filter carrier comprises a first retainer element that extends from an upper portion of the filter carrier and engages an upper portion of the first filter element to retain the first filter element in the filter carrier,
wherein the spring element acts on the first filter element by pressing the filter frame against the first retainer element, and
wherein the filter frame comprises a first filter frame part or first filter frame section, which is assigned to the spring element, and a second filter frame part or second filter frame section, which is assigned to the first retainer element and which is opposite to the first filter frame part or first filter frame section, wherein at least one of the first and second filter frame parts or first and second filter frame sections comprises a recess or a cut-out for receiving a portion of the respectively assigned first retainer element or spring element.

7 more elements

A combination appliance comprising:

a cooking hob having a cover plate adapted to support cookware for cooking thereon and having an opening formed therein;
and
an extraction device arranged below the cover plate, the extraction device comprising:
a filter carrier arranged directly beneath said opening and comprising a carrier housing,
a filter removably installed within the carrier housing, said filter being adapted to filter particulates and or droplets that pass through said opening in the cover plate, and to accommodate passage of air therethrough,
a spring element supported against an inner surface of the filter carrier, and
a fan configured to draw air from an area above the cover plate, through the opening therein, then through the filter and into an exhaust duct for recirculation of the drawn air back into a room space housing the combination appliance via an exhaust opening;
wherein said filter comprises a first filter portion having a first flat filter area and a first filter frame surrounding and supporting the first flat filter area;
wherein said filter carrier comprises a first filter seat adapted to accommodate the first filter portion in a definite first position when installed therein, and first clamping means adapted to reversibly clamp the first filter portion in said definite first position associated with the first filter seat in a manner that avoids noise cause by vibration of the first filter portion;
wherein said first clamping means of the filter carrier comprises a first retainer element that extends from an upper portion of the filter carrier and engages an upper portion of the first filter frame to retain the first filter element in the filter carrier;
and
wherein said spring element acts on the first filter portion by pressing the first filter frame against the first retainer element;
wherein said first retainer element extends from a first wall of the filter carrier, said first retainer element having a downholder or bulge facing downward that resiliently engages an upper cross member of the first filter frame, thereby fixing the first filter portion in said definite first position within the filter carrier;
and
wherein said downholder or bulge depends downwardly from a cantilevered portion of the first retainer element extending from said first wall of the upper part of the filter carrier, said cantilevered portion resiliently biasing the downholder or bulge into engagement with the upper cross member of the first filter frame.

12 more elements

Dependencies are inferred from the claim text.