EP-4736723-A1 - CLEANER

EP4736723A1EP 4736723 A1EP4736723 A1EP 4736723A1EP-4736723-A1

Abstract

The present invention relates to a cleaner and may include a main body including a dust bin in which dust is stored, a suction part configured to guide air to an inside of the dust bin, a first filter having at least a portion disposed therein and filtering dust from air introduced through the suction part, a second filter configured to filter dust from air passing through the first filter, and a cleaning unit disposed to move with respect to the first filter and the second filter, wherein the first filter includes a first filter surface on which first dust that is dust filtered by the first filter is accumulated, the second filter includes a second filter surface on which second dust that is dust filtered by the second filter is accumulated, and the cleaning unit sweeps the first dust and the second dust from the first filter surface and the second filter surface, respectively.

Inventors

KIM, HANSHIN
KIM, SIYONG
HAN, Jaehun
HWANG, Inkyu
LIM, JUNHYUNG

Assignees

LG Electronics Inc.

Dates

Publication Date: 20260506
Application Date: 20240719

Claims (16)

A cleaner comprising: a main body including a dust bin in which dust is stored; a suction part configured to guide air to an inside of the dust bin; a first filter having at least a portion disposed inside the dust bin and filtering dust from air introduced through the suction part; a second filter configured to filter dust from air passing through the first filter; and a cleaning unit movably disposed with respect to the first filter and the second filter, wherein the first filter includes a first filter surface on which first dust that is dust filtered by the first filter is accumulated, the second filter includes a second filter surface on which second dust that is dust filtered by the second filter is accumulated, and the cleaning unit sweeps the first dust and the second dust from the first filter surface and the second filter surface, respectively.
The cleaner of claim 1, further comprising a suction motor configured to generate a suction airflow so that air is suctioned through the suction part, wherein a virtual suction motor axis line extending a rotational axis of the suction motor intersects a longitudinal axis of the dust bin.
The cleaner of claim 2, wherein the suction part and the suction motor are disposed at opposite sides with respect to the longitudinal axis of the dust bin.
The cleaner of claim 2, wherein the main body further includes a filter housing which is detachably coupled to the dust bin and in which the second filter is accommodated.
The cleaner of claim 4, wherein a filter entrance part through which the filter enters and exits is formed at one side of the filter housing.
The cleaner of claim 5, wherein the cleaning unit includes: a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin; a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing; and a connection part passing through the filter housing and connecting the first movable part to the second movable part.
The cleaner of claim 6, wherein the cleaning unit further includes: a manipulation housing coupled to the main body; a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing; a manipulation lever moved along the guide member and having at least a portion exposed to the outside; and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.
The cleaner of claim 7, wherein the filter entrance part is opened in a direction in which the elastic member is elastically restored.
The cleaner of claim 7, wherein the connection part and the guide member are disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.
The cleaner of claim 1, wherein at least a portion of the second filter is disposed inside the first filter.
The cleaner of claim 10, wherein the first filter and the second filter are formed coaxially.
The cleaner of claim 10, wherein the main body further includes a filter housing which is disposed inside the dust bin and in which at least a portion of the second filter is accommodated.
The cleaner of claim 12, further comprising a plurality of cyclone bodies disposed inside the filter housing and disposed to surround the second filter about the second filter.
The cleaner of claim 12, wherein the cleaning unit includes: a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin; a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing; and a connection part passing through the filter housing and connecting the first movable part to the second movable part.
The cleaner of claim 14, wherein the cleaning unit includes: a manipulation housing coupled to the main body; a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing; a manipulation lever moved along the guide member and having at least a portion exposed to the outside; and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.
The cleaner of claim 15, wherein the connection part and the guide member are disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.

Description

[Technical Field] The present invention relates to a cleaner. [Background Art] In general, a cleaner is a home appliance for suctioning small trash or dust in a manner of suctioning air using electricity and filling the same in a dust bin inside a product and is commonly called a vacuum cleaner. The vacuum cleaner may be classified into a manual vacuum cleaner for allowing a user to directly perform cleaning while moving the cleaner, and an automatic vacuum cleaner for performing cleaning while traveling by itself. Depending on the type of the vacuum cleaner, the manual vacuum cleaner may be classified into a canister-type vacuum cleaner, an upright vacuum cleaner, a hand vacuum cleaner, a stick-type vacuum cleaner, etc. In the past, the canister-type vacuum cleaner was widely used as the household vacuum cleaner, but recently, the hand vacuum cleaner and the stick-type vacuum cleaner, which provide improved convenience of use by providing a dust bin and a cleaner body, are increasingly being used. The canister-type vacuum cleaner has a main body and a suction port connected by a rubber hose or a pipe and in some cases, may be used by inserting a brush into the suction port. The hand vacuum cleaner is designed to maximize portability and has lightweight and a short length, and thus can have a limited cleaning area. Therefore, the hand vacuum cleaner is used to clean localized sites, such as on a desk, a sofa, or a vehicle interior. A user may use the stick-type vacuum cleaner while standing to enable cleaning without bending down. Therefore, it is advantageous for cleaning a wide region while moving. While the hand vacuum cleaner cleans narrow spaces, the stick-type vacuum cleaner may clean wider spaces and clean high places out of reach. Recently, the stick-type vacuum cleaner has been provided in a module type to allow users to actively change a vacuum cleaner type for various purposes. Meanwhile, International Patent Publication No. 2023-089298 discloses a dirt separator. The dirt separator according to the related art document includes a first filter for separating dirt from air introduced through an air inlet, a second filter for re-separating dirt from air passing through the first filter, and a wiper blade for directly removing dirt accumulated in the first filter and at the same time, indirectly removing dirt accumulated in the second filter while moving up and down. Since air passes from an outer surface to an inner surface of the first filter and the air passing through the first filter passes from an inner surface to an outer surface of the second filter when a suction motor operates, the dirt separator of the related art document has a structure in which dirt accumulates on the outer surface of the first filter and the inner surface of the second filter. Therefore, in the dirt separator of the related art document, the wiper blade may directly sweep the dirt accumulated on the outer surface of the first filter while moving up and down, and at the same time, a protrusion connected to the wiper blade may separate the dirt accumulated on the inner surface of the second filter by tapping the outer surface of the second filter. However, according to the related art document, the dirt accumulated on the first filter may be directly removed by moving the wiper blade, but there is a limitation in that it is not efficient in removing the dirt accumulated in the second filter. Therefore, when the dirt accumulated in the second filter is not removed, there is a problem that the suction performance of the dirt separator is degraded. [Related Art Documents] [Patent Documents] (Patent Document 0001) International Patent Publication No. 2023-089298 [Disclosure] [Technical Problem] The present invention has been made in efforts to solve the problems and is directed to providing a cleaner capable of removing dust accumulated in at least one filter with a simple operation of a user pushing or pulling a manipulation lever. In addition, the present invention is directed to providing a cleaner capable of improving the filtration performance of a filter and the suction performance by a suction motor by directly sweeping a surface on which dust accumulates of outer and inner surfaces of each filter. In addition, the present invention is directed to providing a cleaner capable of minimizing a user's force moving a manipulation lever by minimizing a distance between a cleaning unit for removing dust accumulated in a first filter and a second filter and the manipulation lever for moving the cleaning unit. In addition, the present invention is directed to providing a cleaner capable of being moved by a user's minimal force by arranging the overall center of gravity of the cleaner as close as possible to a handle gripped by the user. In addition, the present invention is directed to providing a cleaner whose overall size can be minimized by arranging a first filter outside a second cyclone part and a second filter inside a