# US 2017/0280951 A1 · Cleaner

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- Number: US 2017/0280951 A1
- Document ID: US20170280951A1
- Status: Published application
- Kind: A1
- Application number: 15/475,476
- Filed: 2017-03-31
- Published: 2017-10-05
- Earliest claimed: 2016-03-31
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Bohyun NAM; Namhee KIM; Jinju KIM; Hyeonjeong AN; Jungbae HWANG
- Web page: https://patentgrep.com/patent/US20170280951A1

## CPC

- A47L 5/28: Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle (A47L5/24 takes precedence)
- A47L 5/24: Hand-supported suction cleaners
- A47L 9/00: Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L 9/12: Dry filters
- A47L 9/149: {Emptying means; Reusable bags}
- A47L 9/1608: {Cyclonic chamber constructions}
- A47L 9/1616: {Multiple arrangement thereof}
- A47L 9/1625: {for series flow}
- A47L 9/1641: {for parallel flow}
- A47L 9/22: Mountings for motor fan assemblies
- A47L 9/2842: {Suction motors or blowers}
- A47L 9/2857: {User input or output elements for control, e.g. buttons, switches or displays}
- A47L 9/2884: {Details of arrangements of batteries or their installation}
- Y02E 60/10: Energy storage using batteries
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

## Claims

### Claim 1

A cleaner comprising:
a suction unit;
a suction motor that includes an impeller and is configured to generate suction force to thereby suction air through the suction unit;
a dust separation unit that is configured to separate dust from air suctioned through the suction unit, the dust separation unit including one or more cyclone units that are configured to generate cyclonic flow for separating dust from the suctioned air;
a dust container that is disposed vertically under the suction motor and configured to receive the dust separated by the dust separation unit;
a battery disposed at a rear portion of the cleaner at a position rearward of the dust container and configured to supply power to the suction motor; and
a handle disposed at the rear portion of the cleaner at a position rearward of the suction motor,
wherein a rotational axis of the impeller extends in a vertical direction and is oriented parallel with an axis of the cyclonic flow, the rotational axis of the impeller passing through the one or more cyclone units.

### Claim 2 (depends on 1)

The cleaner of claim 1, wherein the axis of the cyclonic flow passes through the suction motor.

### Claim 3 (depends on 1)

The cleaner of claim 1, wherein the axis of the cyclonic flow is aligned with the rotational axis of the impeller.

### Claim 4 (depends on 1)

The cleaner of claim 1, wherein the suction motor is disposed vertically above the dust separation unit, and air exits are located vertically above the suction motor and configured to discharge air that has passed through the suction motor.

### Claim 5 (depends on 1)

The cleaner of claim 1, wherein the dust separation unit includes a first cyclone unit having a first cyclonic flow axis and a second cyclone unit having a second cyclonic flow axis, the second cyclone unit being disposed inside the first cyclone unit, and
wherein at least one of the first or second cyclonic flow axes passes through the suction motor.

### Claim 6 (depends on 5)

The cleaner of claim 5, wherein the dust separation unit includes a plurality of the second cyclone units.

### Claim 7 (depends on 5)

The cleaner of claim 5, further comprising a cleaner body that houses the suction motor and the dust separation unit, the suction unit extending horizontally along a longitudinal axis from a front portion of the cleaner body,
wherein at least a portion of the suction motor is positioned vertically above the longitudinal axis, and
wherein the second cyclone unit is positioned vertically below the longitudinal axis.

### Claim 8 (depends on 1)

The cleaner of claim 1, further comprising:
a motor housing that accommodates the suction motor; and
a discharge cover that defines one or more air exits, at least a portion of the discharge cover being positioned vertically above the motor housing.

### Claim 9 (depends on 8)

The cleaner of claim 8, further comprising:
a pre-filter that is configured to filter air that is discharged from the dust separation unit and flowing toward the suction motor; and
an air guide that is located in the motor housing, that surrounds the suction motor, and that is configured to guide the air discharged from the dust separation unit toward the suction motor.

### Claim 10 (depends on 9)

The cleaner of claim 9, wherein the air discharged from the dust separation unit is directed upward to be filtered by the pre-filter, the air filtered by the pre-filter is directed downward to the suction motor, and the air that has passed through the suction motor is directed upward to be discharged outside through the one or more air exits.

### Claim 11

A cleaner comprising:
a suction unit;
a suction motor that includes an impeller and that is configured to generate suction force to thereby suction air through the suction unit;
a dust separation unit that is configured to separate dust from air suctioned through the suction unit, the dust separation unit including one or more cyclone units that are configured to generate cyclonic flow for separating dust from the suctioned air;
a dust container that is configured to receive the dust separated by the dust separation unit;
a battery that is configured to supply power to the suction motor;
a handle disposed at a rear portion of the cleaner at a position rearward of the suction motor; and
a discharge cover disposed at a top surface of the cleaner, the discharge cover defining one or more air exits that are configured to discharge air that has passed through the suction motor,
wherein an axis of the cyclonic flow passes through the discharge cover.

### Claim 12 (depends on 11)

The cleaner of claim 11, wherein the suction motor is disposed vertically between the discharge cover and the dust separation unit, and the axis of the cyclonic flow passes through the suction motor.

### Claim 13 (depends on 11)

The cleaner of claim 11, wherein at least some of the one or more air exits are positioned forward of the axis of the cyclonic flow.

### Claim 14 (depends on 11)

The cleaner of claim 11, wherein the discharge cover includes a flow guide that is configured to direct the discharged air away from a user.

### Claim 15 (depends on 11)

The cleaner of claim 11, wherein the suction unit extends along a longitudinal axis from a front portion of the cleaner, and wherein, based on the longitudinal axis of the suction unit being oriented horizontal to ground, the discharge cover is located vertically above the suction motor and the longitudinal axis.

### Claim 16

A cleaner having a cleaner body, the cleaner comprising:
a suction unit that extends along a longitudinal axis from a front portion of the cleaner body;
a suction motor that is configured to generate suction force to thereby suction air through the suction unit;
a dust separation unit that is configured to separate dust from air suctioned through the suction unit, at least a portion of the dust separation unit being positioned to vertically overlap the suction motor; and
a dust container that includes:
a dust collection body configured to receive the separated dust, and
a body cover configured to open and close the dust collection body,
wherein the cleaner body defines one or more air exits configured to discharge air that has passed through the suction motor, the air being discharged through the one or more air exits in a direction transverse the longitudinal axis of the suction unit, and
wherein, based on the longitudinal axis of the suction unit being oriented horizontal relative to ground, the longitudinal axis of the suction unit is positioned vertically above the body cover.

### Claim 17 (depends on 16)

The cleaner of claim 16, further comprising a motor housing that is configured to receive the suction motor,
wherein at least a portion of the motor housing is positioned to vertically overlap the dust container, and the longitudinal axis of the suction unit passes through the overlapping portion.

### Claim 18 (depends on 16)

The cleaner of claim 16, further comprising:
a battery that is configured to supply power to the suction motor; and
a handle disposed at a rear portion of the cleaner body,
wherein the dust separation unit is located between the handle and the suction unit.

### Claim 19 (depends on 16)

The cleaner of claim 16, wherein, based on the longitudinal axis of the suction unit being oriented horizontal relative to ground, the longitudinal axis of the suction unit is positioned vertically above the dust collection body.

### Claim 20 (depends on 16)

The cleaner of claim 16, wherein the body cover lies along a plane that is parallel to the longitudinal axis of the suction unit